МОБИЛЬНЫЙ ТЕРМИНАЛ И БАЗОВАЯ СТАНЦИЯ РАДИОСВЯЗИ

Изобретение относится к мобильному терминалу и базовой станции радиосвязи и может использоваться в различных универсальных системах мобильной связи. Достигаемый технический результат - расширение полосы частот и повышение скорости передачи для обеспечения одновременного использования и поддержки множества универсальных систем мобильной связи. Мобильный терминал осуществляет поиск соты с использованием сигнала канала SCH, включенного в одну нисходящую компонентную несущую CC из множества нисходящих компонентных несущих, базовая станция передает сигнал канала DBCH, включающий информацию о восходящей компонентной несущей, спаренной с первоначальной нисходящей компонентной несущей, включающей сигнал канала SCH, полученный посредством поиска соты, и передает сигнал отклика сигнала канала RACH из мобильного терминала в мобильный терминал в первоначальной нисходящей компонентной несущей CC, мобильный терминал передает сигнал общего канала, включающий информацию о ширине полосы частот мобильного ...

СИСТЕМА СВЯЗИ, УСТРОЙСТВО СВЯЗИ, СПОСОБ СВЯЗИ И КОМПЬЮТЕРНАЯ ПРОГРАММА

Изобретение относится к области радиосвязи. Техническим результатом является согласование помех между ячейками. Упомянутый технический результат достигается тем, что при определении частот, используемых ретрансляционной станцией в системе, для назначения граничных частот, определяют также центральные частоты, с наибольшей вероятностью подверженные помехам от сигналов ретрансляционной станции, чтобы избежать назначения соответствующих частот. В альтернативном варианте центральную частоту смежной ячейки, на которую могут повлиять помехи от сигнала ретрансляционной станции, изменяют в зависимости от местонахождения ретрансляционной станции и соответственно уменьшают множество позиций, в которых высока вероятность взаимных помех с центральной частотой соседней ячейки, посредством установки области граничных частот, доступных для назначения ретрансляционной станции, в зависимости от местонахождения указанной ретрансляционной станции. 4 н. и 4 з.п. ф-лы, 29 ил.

СПОСОБ ПЛАНИРОВАНИЯ РЕСУРСОВ, СПОСОБ ОПРЕДЕЛЕНИЯ РЕСУРСОВ, УСОВЕРШЕНСТВОВАННЫЙ УЗЕЛ B И ПОЛЬЗОВАТЕЛЬСКОЕ ОБОРУДОВАНИЕ

Изобретение относится к беспроводной связи. Предусмотрены способ планирования ресурсов, способ определения ресурсов, eNB и пользовательское оборудование. Способ планирования ресурсов для беспроводной связи осуществляется посредством eNB. Беспроводная связь предусматривают использование, по меньшей мере, первой несущей и второй несущей. Способ планирования ресурсов содержит: передачу DCI на первой несущей на UE для планирования ресурсов нисходящей линии связи для PDSCH второй несущей, причем eNB способен начинать передачу пакета на второй несущей в адаптивное время, не зависящее от границ подкадра второй несущей, после того как eNB занимает вторую несущую, и DCI для адаптивного PDSCH пакета, отличного от нормального PDSCH второй несущей, содержит информацию о периоде времени, запланированном для адаптивного PDSCH. Адаптивный PDSCH и соответствующий ему RS могут повторно использовать структуру подкадра DwPTS для минимального влияния на спецификацию. 6 н. и 24 з.п. ф-лы. 14 ил.

СИСТЕМА И СПОСОБ ДЛЯ БЕСПРОВОДНОЙ ПЕРЕДАЧИ ДАННЫХ С ОХВАТОМ, КАК ЛИЦЕНЗИРОВАННОГО, ТАК И НЕЛИЦЕНЗИРОВАННОГО СПЕКТРОВ

Изобретение относится к средствам беспроводной передачи данных с охватом, как лицензированного, так и нелицензированного спектра. Технический результат заключается в расширении арсенала средств того же назначения. В заявленном решении выполняют беспроводную передачу данных через объединенный радиоинтерфейс, который охватывает как части первичной полосы, так и дополнительной полосы, что позволяет обеспечивать улучшенную пропускную способность и спектральную эффективность в сетях следующего поколения. При этом данные переносят в разных форматах фрейма через соответствующие первичные и дополнительные полосы. Например, фреймы, передаваемые через первичную полосу, могут иметь другую структуру канала, например, другой размер, размещение, ориентацию, чем фреймы, передаваемые через дополнительную полосу. При беспроводной передаче данных с охватом лицензированного и нелицензированного спектров также могут использоваться разные схемы доступа и/или формы колебаний через соответствующие первичные и ...

СПОСОБ И УСТРОЙСТВО ИЗМЕРЕНИЯ ПОМЕХ ДЛЯ ИСПОЛЬЗОВАНИЯ В РАСПРЕДЕЛЕННОЙ АНТЕННОЙ СИСТЕМЕ

... 1. Способ передачи информации состояния канала на основе измерения помех терминала в распределенной антенной системе (DAS), при этом способ содержит этапы, на которых:- принимают конфигурацию ресурса для измерений помех (IMR) для измерения помех, вызываемых посредством нескольких точек передачи (TP);- принимают управляющую информацию, включающую в себя информацию диспетчеризации, по физическому совместно используемому каналу нисходящей линии связи (PDSCH);- определяют то, возникают ли измерение помех на основе IMR и PDSCH-прием в одном и том же субкадре; и- передают информацию состояния канала, сформированную согласно результату определения.2. Способ по п. 1, в котором передача информации состояния канала содержит этап, на котором формируют, когда измерение помех на основе IMR и PDSCH-прием возникают в одном и том же субкадре, информацию состояния канала с использованием предыдущего результата измерения помех без выполнения измерения помех в соответствующем субкадре.3. Способ по п. 1, в ...

SCHALTUNG ZUR DIGITALEN HF-INTERFERENZUNTERDRÜCKUNG

Interference avoidance

Cross-channel interference measurement and bit allocation in a DMT system with imperfect TEQ

The invention relates to a method of determining cross channel interference in a Discrete Multitone (DMT) implementation of a Digital Subscriber Line (DSL) system. The cross channel interference is determined utilizing a residual impulse spectrum after implementation of a Time Equalization (TEQ) algorithm. In one application the cross channel interference value is used in a bit allocation algorithm to improve error rate such that more bits are allocated to the channels with low interference and fewer bits are allocated to those channels having high interference. In this application the bit allocation algorithm is run twice, once before the interference measurement and once after. The residual impulse spectrum is derived by taking a Fourier Transform of the impulse response coefficients which remain after zeroing of the coefficients corresponding to a cyclic prefix inserted in the data stream. Applications include DSL and ADSL systems.

A method of transmission

SEQUENCE DISTRIBUTION, PROCESSING METHOD AS WELL AS APPROPRIATE DEVICE IN A COMMUNICATION SYSTEM

SEQUENCE DISTRIBUTION PROCEDURE, SEQUENCE PROCESSING METHOD AND DEVICE IN A COMMUNICATION SYSTEM

Sequence distributing method, sequence processing method and apparatus in communication system

PACKET DATA TRANSMISSION IN A MIMO SYSTEM

Dynamic assignment of ACK resource in a wireless communication system

Techniques for dynamically assigning acknowledgement (ACK) resource to a user equipment (UE) are described. For dynamic scheduling, a scheduling message may be used to send scheduling information for a single transmission of data. For semi-persistent scheduling, a scheduling message may be used to send a semi-persistent assignment for multiple transmissions of data. In an aspect, at least one field of a scheduling message, which is normally used to carry scheduling information for dynamic scheduling, may be re-used to carry an ACK resource assignment for semi-persistent scheduling. In one design, a UE may receive a scheduling message carrying a semi-persistent assignment and may obtain an assignment of ACK resource from the at least one field of the scheduling message. The UE may receive a transmission of data sent in accordance with the semi-persistent assignment, determine ACK information for the transmission of data, and send the ACK information with the ACK resource.

Digital radio frequency interference canceller

METHOD OF DOWNLINK RESOURCE ALLOCATION IN A SECTORIZED ENVIRONMENT

... ²²²Methods and apparatus for communicating different size coded blocks of ²information in a wireless sectorized communications cell are described. ²Information may be categorized and formed into large, medium, and small coded ²blocks which may include error correction code bits based on the number of ²bits representing the information, time criticality of the information, and ²tolerable level of interference. Channels with full tone overlap between ²adjacent sectors, channels with no tone overlap between adjacent sectors, and ²channels with partial tone overlap between adjacent sectors are used for ²different size blocks. Some tones corresponding to a channel with less than ²full tone overlap are left unused in an adjacent sector thereby achieving less ²than full transmission tone overlap. Large transmission blocks are transmitted ²using full tone overlap channels; medium transmission blocks are transmitted ²using partial tone overlap channels; small transmission blocks are transmitted ...

MOBILE TERMINAL APPARATUS AND RADIO BASE STATION APPARATUS

Provided are mobile terminals and wireless base stations which can handle each mobile communication system when a plurality of mobile communication systems co-exist. In a mobile terminal, an SCH signal which is included in any downlink CC of a plurality of downlink CCs is used in a cell search which is conducted. The wireless base station reports a DBCH signal which includes the uplink CC information paired with the initial downlink CC which includes the SCH signal in the cell search, and transmits the response signal of a RACH signal from the mobile terminal to the mobile terminal in the initial downlink CC. The mobile terminal transmits a shared channel signal which includes the transmission/reception bandwidth information of the mobile terminal in the uplink CC to the wireless base station. The wireless base station transmits the control signal which includes the allocation information of the downlink CC and the uplink CC based on the information of the transmission/reception bandwidth ...

INFORMATION TRANSMISSION METHOD AND DEVICE

Embodiments of the present application provide an information transmission method and device. The method comprises: a network device determines a first time-domain resource available on a first carrier, the first time-domain resource being a time-domain resource in a first downlink transmission opportunity; and the network device sends first information to a terminal device by means of the first time-domain resource on the first carrier, the first information being used for indicating that time-domain resource information of the first transmission opportunity is determined according to a first carrier interval.

ELECTRONIC APPARATUS, METHOD AND COMPUTER-READABLE STORAGE MEDIUM FOR WIRELESS COMMUNICATION SYSTEM

The present disclosure relates to an electronic apparatus, a method and a computer-readable storage medium for a wireless communication system. The electronic apparatus for a wireless communication system according to the present disclosure comprises: a processing circuit, configured to generate resource allocation information according to interference conditions encountered by user equipment (UE), wherein a current altitude of the UE is higher than an altitude threshold, and sending the resource allocation information to base station equipment of other cells apart from neighboring cells of a current serving cell of the UE, so as to configure information sending resources for the base station equipment of the other cells. The electronic device, method and computer-readable storage medium of the present disclosure are capable of reducing information interference generated in a wireless communication system of an unmanned aerial vehicle device.

MITIGATION OF RADIO FREQUENCY INTERFERENCE IN MULTICARRIER TRANSMISSION

A multi-carrier information transceiver that exhibits robustness against radio frequency interference (RFI) signals present in the communications channel. The transceiver includes a RFI mitigation technique that operates not only during the steady state operation of the transceiver but also during the training stage of the transceiver. That requires dynamically modifying the training signals when the presence of RFI is detected. The modification of the training signals facilitates the estimation of RFI, improving the performance of the multi-carrier transceiver.

METHOD AND APPARATUS FOR FREQUENCY SELECTIVE AND FREQUENCY DIVERSITY TRANSMISSIONS IN A WIRELESS COMMUNICATION SYSTEM

Techniques for efficiently supporting frequency selective scheduling (FSS) and frequency diversity scheduling (FDS) are described. In one design, a first transmission for an FSS user may be mapped to a subband selected for this user from among at least one subband in a first frequency region of the system bandwidth. The first transmission may be mapped to a fixed portion or different portions of the selected subband in different time intervals. A second transmission for an FDS user may be mapped across multiple subbands in a second frequency region of the system bandwidth. The second transmission may be mapped to different subbands or different resource blocks in the second frequency region in different time intervals. Each time interval may correspond to a symbol period, a slot, a subframe, etc. The frequency hopping may be performed based on a fixed hopping pattern or a pseudo-random hopping pattern.

METHOD AND APPARATUS FOR SUPERFRAME BIT ALLOCATION

A method and apparatus for supporting multiple bit allocations in a multicarrier modulation system are disclosed. Hence, symbols being transmitted or received can make use of different bit allocations. By supporting the multiple bit allocations, the multicarrier modulation system is able to support bit allocation on a superframe basis. Also disclosed are techniques for selection and alignment of superframe formats to improve system performance. In the case of data transmission systems involving different transmission schemes, different bit allocations can be used to reduce undesired crosstalk interference.

Frequency-hopping method for LTE aperiodic sounding reference signals

Disclosed is a methodology that enables narrowband aperiodic sounding and frequency hopping through the use of additional RRC configuration, thus requiring little or no additional L1 overhead to support narrowband frequency hopping for aperiodic sounding transmissions. More specifically, a simple approach for extending the LTE periodic sounding reference signal methodology to include aperiodic sounding. One benefit of the proposed technique is that the proposed technique enables each UE to perform aperiodic channel sounding in every sounding subframe through use of a frequency-hopping approach where the sounding bandwidth of the UE can be narrowed appropriately to match its link capability. Additional benefits of the new approach include better resource utilization, lower signaling overhead, faster channel information update rates, and lower blocking probabilities.

Improved adaptation of transmission parameters

Spectrum sharing method and base station

For sharing in the frequency spectrum of the LTE/LTE - A communication virtual carrier

In a wireless communication system for transmitting and receiving control information method and apparatus

METHOD AND DEVICE FOR SELECTING PARAMETERS OF THE CDMA SPREAD OF OFDM SYSTEM

METHOD AND SYSTEM FOR SHARING A RADIO SPECTRUM

PROCESS AND A DEVICE OF REDUCTION OF THE INTERFERENCES BETWEEN A SIGNAL TRANSMISSION CURRENT AND A SIGNAL OF THE TYPE VDSL

La présente invention concerne un procédé de réduction des interférences entre un signal courant porteur (SCPL) transmis sur une ligne électrique (Le) et un signal de type VDSL (SVDSL) transmis sur une ligne téléphonique (Lpots) qui est située à proximité de la ligne électrique (Le). Lesdits signaux (SCPL, SVDSL) acheminant des données sous forme de bits qui sont attribués à des fréquences porteuses (Fk) réparties dans une même bande de fréquences selon des plans de fréquence différents, caractérisé en ce qu'il comporte - une étape (1) pour déterminer au moins une fréquence porteuse (FVDSL), dite fréquence VDSL, d'un plan de fréquence utilisé pour la transmission du signal de type VDSL dont le niveau de densité spectrale de puissance est supérieur à un seuil prédéterminé (Th), - une étape (2) pour déterminer au moins une fréquence porteuse (FCPL), dite fréquence CPL, d'un autre plan de fréquence utilisé pour la transmission du signal courant porteur et qui est commune avec au moins une ...

METHOD AND APPARATUS FOR DETECTION OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) SIGNALS BY COGNITIVE RADIOS

METHOD AND APPARATUS FOR ALLOCATING SUPER FRAME BIT

PURPOSE: A method for allocating supper frame bit is provided to reduce jamming interference by using multiple bit allocation as to each transmission direction so as to obtain data transmission having faster reliability. CONSTITUTION: For supporting multiple bit allocation in a multiple carrier modulation system, symbols use different bit allocation each other. The multiple carrier modulation system can support the bit allocation on the basis of super frame, by supporting the multiple bit allocation. The method for allocating super frame bit includes: receiving service request as to data transmission; selecting super frame format on the basis of the service request; selecting the proposed alignment of the selected super frame format; allocating bits to a frequency tone of the selected super frame format; determining performance measured value as to the selected super frame format having the allocation of bits; and selecting one of the proposed alignments as to the super frame format according ...

aparelho e método para seleção de freqüência dinámica em redes sem fio

ADAPTIVE CONTROL CHANNEL

A wireless network may implement a reduced bandwidth for control information transmitted and/or received on the wireless network. The reduced bandwidth may be used to avoid interference that may be detected from an in-band or adjacent channel. The reduced bandwidth may be used for transmission and/or reception of control information on a cellular or Wi-Fi channel. An eNB or an access point (AP) may signal to a wireless transmit/receive unit (WTRU) information associated with the reduced control channel, such as the power and/or the location of the channel in a frequency band. The control channel may be shifted to avoid a change in interference.

EFFICIENT CONTROL CHANNEL DECODING IN COMP COMMUNICATIONS

Certain embodiments of the present disclosure propose two efficient designs for a control channel in a Coordinated Multi-Point (CoMP) system. The proposed designs enable a user equipment (UE) to transmit acknowledgement (ACK) and negative acknowledgement (NACK) signals to one or more access points (APs) upon receiving transmissions from them.

SYSTEMS AND METHODS FOR MOBILITY OPTIMIZATION IN A HETEROGENEOUS NETWORK

Methods, systems, and devices for mobility optimization in a heterogeneous network are disclosed herein. A base station includes an anchor module, a context information module, and a transmission point module. The anchor module configures the base station as a virtual anchor cell for a plurality of small cells. The context information module is configured to maintain context information for user equipment (UE). The context information for the UE is maintained by the context information module while any small cell of the plurality of small cells is configured as a TP for the UE. The transmission point (TP) change module is configured to send at least a portion of the context information to a small cell configured as the TP for the UE.

METHOD AND APPARATUS FOR MAPPING AND ALLOCATING RESOURCES FOR RELAY LINK-PHYSICAL DOWNLINK SHARED CHANNEL

A method and an apparatus for mapping and allocating resources for Relay link-Physical Downlink Shared CHannel (R-PDSCH) are disclosed by the present invention, wherein the method includes that: when resources allocated for Relay link-Physical Downlink Control CHannel (R-PDCCH) and R-PDSCH overlap, data of said R-PDSCH is not mapped and sent on overlapped resources of the allocated resources, or the data of said R-PDSCH to be sent on the allocated overlapped resources is punched; data of said R-PDSCH is mapped and sent on all or partial resources which are not occupied by the R-PDCCH on the allocated resources; a receiving terminal receives data according to the R-PDSCH mapping method; wherein, the R-PDSCH resource allocation includes that: the R-PDSCH reuses a resource allocation mode corresponding to the shared channel in an LTE system, or uses a group tree resource allocation mode. The present invention well applies a link between a base station and a relay node, the resource allocation ...

METHOD AND APPARATUS FOR COLLISION DETECTION IN WIDER BANDWIDTH OPERATION

Embodiments of systems and methods for providing collision detection in a wider bandwidth are generally described herein. Other embodiments may be described and claimed.

I/Q IMBALANCE COMPENSATION USING SCHEDULING

According to methods and apparatus taught herein, user equipments (UEs) in a wireless communication network are scheduled based on determining received signal power densities for a plurality of UEs to be scheduled, allocating UEs to scheduling intervals based on a sorting of their received signal power densities, and assigning UEs in the same scheduling interval to mirror frequency bands within an available frequency spectrum according to the sorting. For example, UEs to be scheduled are assigned to a given scheduling interval in rank order of their received signal power densities until the scheduling interval is fully allocated. Remaining UEs are assigned in rank order to one or more other scheduling intervals, and the process may be repeated or otherwise carried out on an ongoing basis. Such an allocation scheme tends to minimize both adjacent frequency and mirror frequency interferences between UEs scheduled in the same interval.

DEVICE AND METHOD FOR MONITORING THE CONTROL CHANNEL IN A MULTICARRIER SYSTEM

The present invention relates to a method and device for monitoring the control channel in a multicarrier system. Each of a plurality of sub-search spaces in an extended search space corresponds to each of a plurality of scheduled component carrier. The terminal monitors a downlink control channel for the scheduled component carrier corresponding to each of the plurality of sub-search spaces. Each of the plurality of sub-search spaces is defined displaced to the extent that they are offset from each other.

TERMINAL DEVICE, BASE STATION DEVICE, AND FREQUENCY RESOURCE ALLOCATION METHOD

It is possible to realize reduction of inter-cell interference by an adaptive FFR with a low delay. A terminal (200) includes: an interference condition detection unit (209) which detects an interference condition of other cell to the local cell; a cell identification unit (210) which acquires an identification signal of each base station; and a sub-band selection unit (211) which selects a sub-band used for the downstream line transmission to the local station according to the interference condition detected by the interference condition detection unit (209) and the identification signal of each base station obtained by the cell identification unit (210). Thus, the terminal (200) can autonomously select a small sub-band of inter-cell interference and to realize reduction of the inter-cell interference by the adaptive FFR with a low delay.

METHOD FOR TRANSMITTING UPLINK AND WIRELESS DEVICE USING SAME

Provided are a method for transmitting an uplink and a wireless device. The wireless device decides a first wireless resource through which a sounding reference signal (SRS) will be transmitted from a first serving cell, and decides a second wireless resource through which an uplink channel will be transmitted from a second service cell. When all or a portion of the first wireless resource and the second wireless resource overlap, and a total transmission power with respect to the SRS and the uplink channel from the overlapping wireless resources exceeds a predetermined maximum transmission power, the wireless device drops the transmission of the SRS and transmits the uplink channel through the second wireless resource from the second service cell.

APPARATUS AND METHODS FOR INTERFERENCE MITIGATION

Measures for mitigating interference in wireless communications of a user equipment comprising a plurality of radio transceivers. The user equipment determines that wireless communication using a given combination of uplink and/or downlink carrier bands associated with the plurality of radio transceivers causes an interference scenario. In response to the determination, the user equipment transmits, into a radio network, an indication of at least one preferred uplink carrier band for at least one of the plurality of radio transceivers. The indication transmitted by the user equipment is received at a network node in the radio network which may choose to carryout radio resource control in the radio network at least on the basis of the received indication.

NEURAL-NETWORK-BASED DISTANCE METRIC FOR USE IN A COMMUNICATION SYSTEM

Methods and apparatuses for measuring a distance between two signal distributions in a common signal space are described. A measurement network is configured to receive first and second signal distributions as input and output a measurement of a Wasserstein distance between the first and second signal distributions. The measurement network may be implemented using a neural network.

Method and apparatus for sequence distributing and sequence processing in communication system

A sequence distributing and sequence processing method and apparatus in a communication system are provided. The sequence distributing method includes the following steps: generating sequence groups including a number of sequences, the sequences in the sequence groups are determined according to the sequence time frequency resource occupation manner which is supported by the system; distributing the sequence groups to cells. The method avoids the phenomenon that signaling transmission is needed to distribute the sequences to the cells for different time frequency resource occupation manner, and saves in so far as possible the wireless network transmission resource occupied during the process of distributing the sequences through distributing the sequence groups comprising a number of sequences to the cells.

Systems and methods for a multi-carrier transceiver with radio frequency interference reduction

A multi-carrier information transceiver that exhibits robustness against radio frequency interference (RFI) signals present in the communications channel. The transceiver includes a RFI mitigation technique that operates not only during the steady state operation of the transceiver but also during the training stage of the transceiver. That requires dynamically modifying the training signals when the presence of RFI is detected. The modification of the training signals facilitates the estimation of RFI, improving the performance of the multi-carrier transceiver.

Multi-radio coexistence system to select ISM communications frequency bands to avoid cellular communications interference

Frequency bands for Industrial Scientific and Medical (ISM) communications are selected to avoid interference with the cellular communication. In one aspect of the disclosure, the frequency bands for Bluetooth/WLAN communication are selected to avoid channels that are within a predetermined distance of a harmonic of a cellular (e.g., wireless wide area network) receive frequency band. That is, a frequency band is selected that is at least a predetermined distance from the cellular receive frequency bands.

PILOT SELECTION METHOD, WIRELESS COMMUNICATION SYSTEM AND BASE STATION THEREOF

A pilot selection method adapted for selecting rank-2 pilot patterns for a macrocell advanced base station (ABS), a femtocell ABS and a non-macrocell and non-femtocell ABS is proposed along with a wireless communication system and a base station thereof. Different rank-2 pilot pattern is selected for a femtocell ABS from its overlay macrocell ABS and non-macrocell and non-femtocell ABS rank-2 pilot patterns. Another pilot selection method for selecting a rank-1 pilot pattern for a femtocell ABS co-located with at least a macrocell ABS is also proposed. Different rank-1 pilot pattern is selected for a femtocell ABS from its overlay macrocell ABSs using rank-1 and/or rank-2 pilot patterns, where some of the macrocell ABSs can use rank-2 pilot patterns and the rest of the macrocell ABSs just use rank-1 pilot patterns. Also, different rank-1 pilot pattern is selected for the femtocell ABS from its neighboring femtocell ABSs using rank-1 pilot patterns.

Techniques for interference reduction in wireless communications networks

The present invention provides techniques for responding to overlapping conditions in wireless communications networks include receiving data transmissions from a transmitting device across a wireless communications network. These data transmissions correspond to a connection with the transmitting device and occur within a reserved portion of a communications resource. An interference condition is detected that includes an allocation of the communications resource for a neighboring device that overlaps with the reserved portion. Based on this detection, the method sends a notification to the transmitting device, the notification indicating the presence of overlapping transmissions in the reserved portion of the communications resource.

Collision reduction in contention-based access

A wireless communications of a contention-based access procedure that reduces collision of reference signals (e.g., when multiple devices select a same reference signal) may support a relatively high user capacity. For a contention-based access procedure, a user equipment may select at least two reference signals and transmit those at least two reference signals in association with a payload to a base station. The payload may be demodulated using each of the at least two reference signals. Thus, if collision occurs with a first reference signal of the at least two reference signals, the payload may still be demodulated using a second reference signal of the at least two reference signals. A base station may demodulate the payload using either first reference signal or the second reference signal. The base station may transmit, to the wireless communications device, a response based on the demodulated payload.

Communication system, communication apparatus, communication method and computer program

By deciding positions of frequencies used via a relay station by a system in advance for assignment of boundary frequencies, frequencies of a central frequency more likely to be affected by the relay station are also mapped by avoiding a signal thereof. Alternatively, an adjacent cell whose central frequency is affected changes depending on a position of the relay station and thus, locations set to be highly likely to interfere with the central frequency of the adjacent cell is reduced by setting a region of the boundary frequencies permitted to the relay station in accordance with the position of the relay station.

BANDWIDTH ALLOCATION BASE STATION AND METHOD FOR ALLOCATING UPLINK BANDWIDTH USING SDMA

Embodiments of a base station and methods for allocating uplink bandwidth using SDMA are generally described herein. In some embodiments, uplink bandwidth request messages are received on a bandwidth request contention channel from one or more subscriber stations. The uplink bandwidth request messages are generated by the subscriber stations by modulating pilot subcarriers of a randomly selected disjoint pilot pattern with a randomly selected orthogonal sequence. The base station allocates uplink bandwidth to the subscriber stations when the uplink bandwidth request messages are successfully detected and decoded. The base station uses an SDMA technique to determine channel responses based on the orthogonal sequences to detect and decode the uplink bandwidth request messages.

Transmitting apparatus, receiving apparatus, and communication system

A transmitting apparatus, a receiving apparatus, and a communication system are provided that allow a reduction in a frame loss due to interference caused by use of the same channel. A transmitting apparatus disposed in a base station includes a GPS receiver for receiving a GPS signal, a timing generator for controlling respective function blocks in accordance with the GPS signal and an inter-base-station control signal so as to precisely synchronize the timing of frame transmission among base stations, the front-end transmission processing unit including for converting transmission information into transmission time slots, a frame generator for generating a frame including a plurality of time slots and one frame guard, and a back-end transmission processing unit for transmitting the generated frame as a radio signal.

Method and apparatus for allocating and processing sequences in communication system

A method and apparatus for allocating and processing sequences in a communication system is disclosed. The method includes: dividing sequences in a sequence group into multiple sub-groups, each sub-group corresponding to its own mode of occupying time frequency resources; selecting sequences from a candidate sequence collection corresponding to each sub-group to form the sequences in the sub-group by: the sequences in a sub-group i in a sequence group k being composed of n sequences in the candidate sequence collection, the n sequences making a |ri/Ni-ck/NP1| or |(ri/Ni-ck/NP1) modu mk,i| function value the smallest, second smallest, till the nth smallest respectively; allocating the sequence group to cells, users or channels. It prevents the sequences highly correlated with the sequences of a specific length from appearing in other sequence groups, thus reducing interference, avoiding the trouble of storing the lists of massive sequence groups.

Synchronous spectrum sharing based on OFDM/OFDMA signaling

A system and method for synchronous spectrum sharing for use in a wireless communication system based on orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) signaling is disclosed. The system includes a frame detector configured to detect a frame of a broadcast waveform and extract idle spectrum information for the frame to the secondary user node. The system allows transmitting data from the secondary user node in unused symbol slots identified in the idle spectrum information thereby making efficient use of unused or idle spectrum. Accordingly, secondary users of the wireless communication system can dynamically form ad-hoc mesh network communications in fixed or mobile scenarios.

Mapping user data onto a time-frequency resource grid in a coordinated multi-point wireless communication system

Methods and apparatus are disclosed for receiving user data in a wireless communication system that employs coordinated multi-point transmission of the user data from a first cell serving a wireless terminal and a second cell site neighboring the first cell site. In an exemplary system, the first cell site maps control signals and user data to a time-frequency resources according to a first mapping pattern, while the second cell site maps control data and traffic data to the time-frequency resources according to a second mapping pattern. An exemplary method comprises extracting user data, according to the first mapping pattern, from time-frequency resources of a first transmission for the wireless terminal transmitted from the first cell site; detecting a control element transmitted by one of the first and second cell sites, the control element indicating that user data associated with the control element is mapped to the time-frequency resources according to the second mapping pattern; ...

Neighboring networks interference mitigation framework

A method of generating a transmission schedule for a network device of a home network includes ensuring that strongly interfering nodes of different domains do not transmit simultaneously while enabling other non interfering nodes of the different domains to transmit simultaneously. A domain master for a home network includes a receiver and a scheduler. The receiver receives at least one transmission from at least one node of its domain indicating at least one node of at least one neighboring domain whose transmissions are interfering. The scheduler schedules transmissions of said nodes of its domain in coordination with a domain master of said neighboring domain according to inter-domain node interference.

Operating environment analysis techniques for wireless communication systems

There is disclosed a method of analyzing an operating environment of wireless communication equipment in a wireless communication system, the method comprising: sensing a plurality of stimuli received over a respective plurality of burst periods at a location of the wireless communication equipment; estimating an interference temperature associated with the stimuli for each of the plurality of burst periods; defining a decision statistic based on the estimated interference temperature and a frequency band; and monitoring said decision statistic over one or more burst periods to identify a presence of a spectrum hole in said frequency band.

Transmit power control techniques for wireless communication systems

There is disclosed a method of controlling transmit power in a wireless device, the method comprising: transmitting signals from the wireless device at a transmit power level; monitoring quality of the signals; adjusting the transmit power level by increasing the transmit power level on determining that a signal quality target is not satisfied and decreasing the transmit power level on determining that the signal quality target is exceeded; repeating the transmitting, monitoring, and adjusting for an adjusted transmit power level.

Wireless communication channel blanking

Systems and methodologies are described that facilitate blanking on portions of bandwidth, such as a subset of interlaces, utilized by communicating devices that are dominantly interfered by a disparate device in wireless communications networks. The portions of bandwidth can relate to critical data, such as control data, and one or more of the communicating devices can request that the dominantly interfering device blank on one or more of the portions. The communicating devices can subsequently transmit data over the blanked portions free of the dominant interference. Additionally, the dominantly interfering device can request reciprocal blanking from the one or more communicating devices.

CONTROL CHANNEL DESIGN TO SUPPORT ONE-TO-ONE, MANY-TO-ONE, AND ONE-TO-MANY PEER-TO-PEER COMMUNICATIONS

MOBILE COMMUNICATION METHOD AND WIRELESS BASE STATION

A mobile communication method according to the present invention includes a step of transmitting, by a radio base station DeNB, a first downlink signal in a first subframe to a relay node RN, a step of transmitting, by the relay node RN, a second downlink signal in a second subframe to a mobile station UE, a step of notifying, by the relay node RN, the radio base station DeNB of information indicating "Half duplex inband Relay Node", and a step of transmitting, by the radio base station DeNB, a transmission timing of R-PDCCH and R-PDSCH in a Un subframe to the relay node RN according to the notification.

A method of transmission

A method of transmission comprises receiving at a first destination (D1), a transmission from a first source (S1); determining from the transmission from the first source, the maximum permitted additional interference subject to which the first destination can still communicate; sending an acknowledgement of the transmission and including in the acknowledgement an indication of the determined maximum permitted additional interference. A second source (S2) determines whether it has received the transmission from the first source, or the acknowledgement from the first destination, at a power level lower than that of the maximum permitted additional interference given in the indication; and if so, the second source sends a transmission to a second destination (D2), which at least partially overlaps in time, communication between the first source and first destination.

Dynamic assignment of ack resource in a wireless communication system

Techniques for dynamically assigning acknowledgement (ACK) resource to a user equipment (UE) are described. For dynamic scheduling, a scheduling message may be used to send scheduling information for a single transmission of data. For semi-persistent scheduling, a scheduling message may be used to send a semi-persistent assignment for multiple transmissions of data. In an aspect, at least one field of a scheduling message, which is normally used to carry scheduling information for dynamic scheduling, may be re-used to carry an ACK resource assignment for semi-persistent scheduling. In one design, a UE may receive a scheduling message carrying a semi-persistent assignment and may obtain an assignment of ACK resource from the at least one field of the scheduling message. The UE may receive a transmission of data sent in accordance with the semi-persistent assignment, determine ACK information for the transmission of data, and send the ACK information with the ACK resource.

RADIO COMMUNICATION DEVICE AND RADIO COMMUNICATION METHOD

Provided is a radio communication device which can prevent interference between SRS and PUCCH when the PUCCH transmission bandwidth fluctuates and suppress degradation of CQI estimation accuracy by the band where no SRS is transmitted. The device includes: an SRS code generation unit (201) which generates an SRS (Sounding Reference Signal) for measuring uplink line data channel quality; an SRS arrangement unit (202) which frequencymultiplexes the SRS on the SR transmission band and arranges it; and an SRS arrangement control unit (208) which controls SRS frequency multiplex so as to be uniform in frequency without modifying the bandwidth of one SRS multiplex unit in accordance with the fluctuation of the reference signal transmission bandwidth according to the SRS arrangement information transmitted from the base station and furthermore controls the transmission interval of the frequency-multiplexed SRS.

SYSTEMS AND METHOD FOR MULTI-CARRIER TRANSCEIVER WITH RADIO FREQUENCY INTERFERENCE REDUCTION

PROBLEM TO BE SOLVED: To provide a multi-carrier information transceiver which further correctly evaluates radio frequency interference (RFI) using disabled tones of both a training signal and a steady state signal. SOLUTION: The multi-carrier modulation transceiver includes a tone manager and a multi-carrier transmitter which disables one or more tones based on a received tone-disable message during at least one training state and assists to determine an obstacle in a communication channel. COPYRIGHT: (C)2011,JPO&INPIT ...

無線通信システムにおけるランダムアクセスチャンネルの信号の送信方法

... 本発明は、無線通信システムにおけるランダムアクセスチャンネルの信号の送信方法を提供する。その流れはこのようにある。端末はアップリンクパイロットスロットの終わり位置で、設定された時間の前に、ランダムアクセスチャンネルでプリアンブルを送信する。そのプリアンブルの長さが2つのサイクリックプレフィックスのついていない符号の長さである。もう一つの無線通信システムにおけるランダムアクセスチャンネルの信号の送信方法の流れは、端末はアップリンクパイロットスロットの終わり位置で、設定された時間の前に、ランダムアクセスチャンネルでサイクリックプレフィックスとプリアンブルを順次に送信する。そのプリアンブルの長さが2つのサイクリックプレフィックスのついていない符号の長さである。当方法はプリアンブルがアップリンクサブフレームのデータを干渉することが避けられ、ランダムアクセスチャンネルのカバー範囲を拡大し、時分割複信システムの効率を向上させることができる。 ...

MOBILE COMMUNICATION METHOD AND RADIO BASE STATION

PROBLEM TO BE SOLVED: To mitigate interference to the receiving circuit of a relay node, which is produced when transmitting/receiving via a Un subframe and transmitting/receiving via a Uu subframe take place concurrently at the relay node. SOLUTION: A mobile communication method comprises: a step in which a radio base station DeNB transmits a first downlink signal in a first subframe to a relay node RN; a step in which the relay node RN transmits a second downlink signal in a second subframe to a mobile station UE; a step in which the relay node RN notifies the radio base station DeNB that the relay node RN is a "half duplex inband relay node"; and a step in which the radio base station DeNB, in response to the notification, informs the relay node RN of the transmission timing for an R-PDCCH and R-PDSCH in a Un subframe. COPYRIGHT: (C)2012,JPO&INPIT ...

СПОСОБ И УСТРОЙСТВО ОБРАБОТКИ ПОЛНОДУПЛЕКСНОЙ ВЗАИМНОЙ ПОМЕХИ

Изобретение относится к технике беспроводной связи и может быть использовано для обработки полнодуплексной взаимной помехи. Способ обработки полнодуплексной взаимной помехи, реализуемый узловым устройством, заключается в том, что получают (101) степень взаимной помехи, возникающей при выполнении узловым устройством полнодуплексной передачи по меньшей мере с двумя пользовательскими устройствами (UE). Определяют (102), в соответствии со степенью взаимной помехи, UE с низким уровнем взаимной помехи, которому разрешена передача сигналов по восходящему и нисходящему каналам передачи данных в одном и том же частотно-временном ресурсе, и UE с высоким уровнем взаимных помех, которым разрешена передача сигналов по восходящему и нисходящему каналам передачи данных в разных частотно-временных ресурсах, из по меньшей мере двух UE. Технический результат - уменьшение взаимной помехи при полнодуплексной передаче данных от точки на множество точек. 4 н. и 22 з.п. ф-лы, 13 ил.

АВТОМАТИЗИРОВАННОЕ УСТРОЙСТВО ПОВЫШЕНИЯ КАЧЕСТВА КАНАЛА ПЕРЕДАЧИ ДАННЫХ

Изобретение относится к области электросвязи. Техническим результатом является повышение качества канала передачи данных путем повышения достоверности восстановления цифровых сигналов канала передачи данных с использованием в канале многоуровневой многофазовой амплитудной модуляции (QAM) при воздействии на канал передачи данных аддитивных и мультипликативных помех. Устройство содержит измеритель отношения сигнал/шум, блок запрета, амплитудный детектор, первый пороговый блок, формирователь сигнала забития, дополнительный ключ, ограничитель, частотный детектор, второй пороговый блок, переключатель и блок регистрации сигнала корреспондента, операционный усилитель, полосовой фильтр, модем, состоящий из модулятора и демодулятора, компьютер, режекторный фильтр, фазовращатель, линию задержки, сумматор, вычитающее устройство, конденсатор, интегратор, инвертор, элемент И, генератор перестраиваемой частоты. 1 ил.

СИСТЕМА СВЯЗИ, УСТРОЙСТВО СВЯЗИ, СПОСОБ СВЯЗИ И КОМПЬЮТЕРНАЯ ПРОГРАММА

Изобретение относится к области радиосвязи. Техническим результатом является согласование помех между ячейками. Упомянутый технический результат достигается тем, что при определении частот, используемых ретрансляционной станцией в системе, для назначения граничных частот определяют также центральные частоты, с наибольшей вероятностью подверженные помехам от сигналов ретрансляционной станции, чтобы избежать назначения соответствующих частот. В альтернативном варианте центральную частоту смежной ячейки, на которую могут повлиять помехи от сигнала ретрансляционной станции, изменяют в зависимости от местонахождения ретрансляционной станции и соответственно уменьшают множество позиций, в которых высока вероятность взаимных помех с центральной частотой соседней ячейки, посредством установки области граничных частот, доступных для назначения ретрансляционной станции, в зависимости от местонахождения указанной ретрансляционной станции. 20 н. и 4 з.п. ф-лы, 29 ил.

СПОСОБ РАСПРЕДЕЛЕНИЯ РЕСУРСОВ НИСХОДЯЩЕЙ ЛИНИИ СВЯЗИ В РАЗДЕЛЕННОЙ НА СЕКТОРА СРЕДЕ

Изобретение относится к коммуникационным системам. Технический результат состоит в возможности использования множества уровней передачи и повышении пропускной способности каналов передачи. Для этого передаваемая информация может быть разделена на категории и сформирована в большие, средние и малые кодированные блоки, которые могут включать в себя биты кода исправления ошибок, основываясь на числе битов, представляющих информацию, критичность информации по времени и приемлемого уровня взаимного влияния. Каналы с полным перекрытием тона между смежными секторами, каналы без перекрытия тона между смежными секторами и каналы с частичным перекрытием тона между смежными секторами используются для блоков различных размеров. Некоторые тона, соответствующие каналу с, по меньшей мере, полным перекрытием тона, остаются неиспользованными в смежном секторе, достигая, таким образом, менее чем полное перекрытие тона передачи. Большие блоки передачи передаются, используя каналы полного перекрытия тона; ...

ДИНАМИЧЕСКОЕ НАЗНАЧЕНИЕ АСК-РЕСУРСА В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ

Настоящее изобретение относится к технологиям для динамического назначения ресурса подтверждения приема (АСК) для абонентского устройства (UE). Технический результат изобретения заключается в эффективном назначении АСК-ресурса для UE. Для динамического планирования сообщение планирования может использоваться для того, чтобы отправлять информацию планирования для одной передачи данных. Для полупостоянного планирования сообщение планирования может использоваться для того, чтобы отправлять полупостоянное назначение для множества передач данных. Одно поле сообщения планирования, которое обычно используется для переноса информации планирования для динамического планирования, может быть многократно использовано, чтобы переносить назначение АСК-ресурсов для полупостоянного планирования. В одной схеме UE может принимать сообщение планирования, переносящее полупостоянное назначение, и может получать назначение АСК-ресурса, по меньшей мере, из одного поля сообщения планирования. UE может принимать ...

СПОСОБ СВЯЗИ, УСТРОЙСТВО СВЯЗИ И НОСИТЕЛЬ ДАННЫХ

Изобретение относится к области беспроводной связи. Технический результат заключается в снижении вероятности возникновения конфликта ресурсов на зарезервированном ресурсе для передачи данных. Технический результат достигается тем, что первое пользовательское оборудование (UE) отправляет индикацию потенциального конфликта второму UE в ответ на определение предстоящего конфликта ресурсов на зарезервированном ресурсе для передачи данных вторым UE. Индикации потенциального конфликта отправляется во второе UE с использованием ресурса физического канала обратной связи линии прямой связи (PSFCH), отображаемого посредством ресурса передачи первого совместно используемого канала линии прямой связи (PSSCH). Первый PSSCH представляет собой PSSCH в слоте, где расположен первый физический канал управления линии прямой связи (PSCCH), и первый PSCCH указывает зарезервированный частотно-временной ресурс для следующей передачи PSSCH. 3 н. и 15 з.п. ф-лы, 23 ил.

ДИНАМИЧЕСКОЕ НАЗНАЧЕНИЕ АСК-РЕСУРСА В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ

... 1. Способ беспроводной связи, содержащий этапы, на которых: ! принимают полупостоянное назначение для абонентского устройства (UE), причем полупостоянное назначение является допустимым для множества передач данных; ! получают назначение ресурса подтверждения приема (ACK) из полупостоянного назначения, при этом ACK-ресурс назначается для UE для множества передач данных; ! принимают передачу данных, отправляемых в соответствии с полупостоянным назначением; ! определяют ACK-информацию для передачи данных; и ! отправляют ACK-информацию с ACK-ресурсом. ! 2. Способ по п.1, в котором этап получения назначения ACK-ресурса содержит этапы, на которых: ! получают индекс ACK-ресурса из полупостоянного назначения, и ! определяют ACK-ресурс на основе индекса и набора сконфигурированных ACK-ресурсов. ! 3. Способ по п.1, в котором этап получения назначения ACK-ресурса содержит этапы, на которых: ! получают индекс ACK-ресурса, по меньшей мере, из одного поля сообщения планирования, переносящего полупостоянное ...

СПОСОБ РАСПРЕДЕЛЕНИЯ РЕСУРСОВ НИСХОДЯЩЕЙ ЛИНИИ СВЯЗИ В РАЗДЕЛЕННОЙ НА СЕКТОРА СРЕДЕ

... 1. Способ передачи блоков информации в беспроводной, разделенной на сектора, коммуникационной соте с частотным уплотнением, включающей базовую станцию, первый сектор и второй сектор, причем второй сектор является смежным с первым сектором, и упомянутые блоки включают в себя блоки первого размера, блоки второго размера и блоки третьего размера, при этом способ содержит этапы, на которых распределяют первый набор тонов первому коммуникационному каналу в каждом из первого и второго секторов; распределяют второй набор тонов второму коммуникационному каналу в каждом из первого и второго секторов; распределяют третий набор тонов третьему коммуникационному каналу в каждом из первого и второго секторов; используют первый набор тонов в первом секторе в течение первого периода времени для передачи информации, соответствующей блокам первого размера, при том, что тона в первом наборе тонов остаются неиспользованными во втором секторе, в то время как упомянутые тона используются для передачи информации ...

БАЗОВАЯ СТАНЦИЯ, ТЕРМИНАЛ ПОЛЬЗОВАТЕЛЯ И СПОСОБ УПРАВЛЕНИЯ СВЯЗЬЮ

Изобретение относится к системам связи. Технический результат заключается в снижении интерференции между сигналами соседних сот. Для диапазонов частот системы определены множество полос частот передачи опорного сигнала, и для каждой полосы частот передачи опорного сигнала определены иерархические полосы частот опорного сигнала так, что полоса частот опорного сигнала низкого порядка, более низкого, чем полоса частот опорного сигнала наивысшего порядка, является частью полосы частот опорного сигнала высокого порядка. Базовая станция хранит информацию о полосе частот опорного сигнала, указывающую иерархические полосы частот опорного сигнала для каждого диапазона частот системы; передает информацию о полосе частот опорного сигнала, соответствующую полосе частот передачи опорного сигнала, используемой базовой станцией; задает полосу частот для скачкообразной перестройки частоты для опорного сигнала, сообщает в терминал пользователя полосу частот для скачкообразной перестройки частоты и полосу ...

УСТРОЙСТВО СВЯЗИ И СПОСОБ СВЯЗИ

СИСТЕМА СВЯЗИ, УСТРОЙСТВО СВЯЗИ, СПОСОБ СВЯЗИ И КОМПЬЮТЕРНАЯ ПРОГРАММА

... 1. Устройство связи, характеризующееся тем, что выполнено с возможностью функционирования в качестве первой базовой станции в системе связи, содержащей первою базовую станцию, управляющую радио ресурсами в местной ячейке, мобильную станцию и ретрансляционную станцию, осуществляющую ретрансляцию сигналов между первой базовой станцией и мобильной станцией, относящейся к указанной ретрансляционной станции, при этом устройство связи содержит:модуль оповещения, выполненный с возможностью сообщения второй базовой станции смежной ячейки информации о помехах, включающей в себя уровень помех или уровень мощности управления радио ресурсами; ипланировщик, выполненный с возможностью планирования радио ресурсов в местной ячейке в соответствии с информацией о помехах, сообщенной указанной второй базовой станцией в соседней ячейке.2. Устройство связи по п. 1, в которомпри назначении частот ретрансляционной станции на стороне первой ячейки допустимо скачкообразное изменение частоты с течением времени.3 ...

ПЕРЕДАЧА КОНТРОЛЬНЫХ СИГНАЛОВ ДЛЯ СИСТЕМЫ БЕСПРОВОДНОЙ СВЯЗИ С ОРТОГОНАЛЬНЫМ ЧАСТОТНЫМ РАЗДЕЛЕНИЕМ

... 1. Устройство беспроводной связи, содержащее ! по меньшей мере, одну антенну; ! запоминающее устройство, в котором хранится множество шаблонов пилот-сигнала, причем каждый шаблон пилот-сигнала имеет взаимно ортогональные кластеры пилотных символов, подлежащих передаче из устройства беспроводной связи, и в запоминающем устройстве хранится множество скалярных функций; и ! процессор, связанный с, по меньшей мере, одной антенной и с запоминающим устройством, при этом процессор адаптирован для выбора одного из шаблонов пилот-сигнала и умножения пилотных символов выбранного шаблона на множество скалярных функций перед передачей пилотных символов из антенны, причем в каждом кластере выбранного шаблона пилот-сигнала все пилотные символы совместно используют одно из общего временного интервала и общего частотного интервала. ! 2. Устройство беспроводной связи по п.1, в котором в запоминающем устройстве хранится другое множество скалярных функций, и процессор обеспечивает умножение пилотных символов ...

Passive intermodulation shaping

An apparatus is provided for controlling radio resource allocation in a node of a radio access network to minimize interference in a received uplink signal caused by passive intermodulation (PIM) between downlink signals for transmission by the same antenna in the same frame. The apparatus comprises a logical module configured for use in a scheduler for allocating physical resource blocks (PRBs) to plural user equipment (UE) in a frame for transmitting data to the UEs from a single antenna of the node. The logical module is configured to receive channel quality indicators (CQIs) of PRB allocations for different UEs in the frame, determine suitable PRBs for each UE, based on the CQI and determine a PRB allocation for each UE from the suitable PRBs for each UE based on: in the time domain, minimizing the spread in time slots for each UE; and; in the frequency domain, maximizing the spread in frequency for each UE.

PACKAGE DATA COMMUNICATION IN A MIMO SYSTEM

DECREASE OF RADIO FREQUENCY DISTURBANCES IN MULTI-CARRIER TRANSMISSIONS

Communication device and communication method

Provided are a communication device and a communication method which send and receive wireless packets. The communication device comprises a control unit which designates subcarriers to be set to null tones according to information contained in the packet, and a transmitter unit which generates and wirelessly transmits a multicarrier signal, in which the designated subcarriers are null tones. The control unit designates, in correspondence with the information, the number of and positions of the subcarriers set as null tones, and the position of the subcarriers, and furthermore changes which subcarriers are set as null tones according to the information time variation.

Method and apparatus for superframe bit allocation

Interference avoidance on common channels in uncoordinated network deployments with flexible spectrum use

A network access node selects one chunk of spectrum from a plurality of chunks of spectrum to be a primary chunk for a particular cell; transmits in the primary chunk from a broadcast channel BCH that contains information needed by a terminal to at least perform initial cell access; and uses a synchronization channel SCH to indicate which chunk of the plurality of chunks is the primary chunk. A user equipment receives a SCH in a particular chunk of spectrum; determines from it that one chunk is a primary chunk for a particular cell; tunes its receiver to a BCH in the primary chunk and uses information received on the BCH to obtain initial access to the particular cell. In various embodiments the SCH is only in the primary chunk or the SCH has some indication (e.g., cell ID or relative position of primary chunk) telling which chunk is primary.

Sequence distributing method, sequence processing method and apparatus in communication system

Frequency-hopping method for LTE aperiodic sounding reference signals

A methodology that enables narrowband aperiodic sounding and frequency hopping through the use of additional RRC configuration, thus requiring little or no additional Ll overhead to support narrowband frequency hopping for aperiodic sounding transmissions. More specifically, a simple approach for extending the LTE periodic sounding reference signal methodology to include aperiodic sounding. One benefit of the proposed technique is that it enables each UE to perform aperiodic channel sounding in every sounding subframe using a frequency-hopped approach where the sounding bandwidth of the UE can be narrowed appropriately to match its link capability. Additional benefits of the new approach include better resource utilization, lower signaling overhead, faster channel information update rates, and lower blocking probabilities.

BIT-LOADING IN MULTI-CARRIER COMMUNICATIONS IN PRESENCE OF RADIO-FREQUENCY INTEFERERS

DATA RECEIVING METHOD, RELATED DEVICE, AND SYSTEM

Disclosed in the embodiments of the present invention are a data receiving method, a related device, and a system. The method comprises: a terminal receiving first indicator information, the first indicator information being used for indicating a target frequency-domain position; the terminal determining a first time-frequency resource according to the target frequency-domain position and the time-domain position of a control resource set; the frequency-domain position of the first time-frequency resource being the same as the target frequency-domain position, the time-domain position of the first time-frequency resource being the same as the time-domain position of the control resource set or being the same as the time-domain position obtained by adding N symbols to the time-domain position of the control resource set; and the terminal receiving data on a target time-frequency resource, the target time-frequency resource comprising a second time-frequency resource and a part of the first ...

ALLOCATION OF WIRELESS CHANNELS FOR PREFERRED STATIONS

Methods, systems, and computer readable media may be operable to facilitate an allocation of one or more channels to one or more preferred stations. An access point may be configured to allocate the use of one or more sub-bands of a frequency spectrum to one or more stations. One or more sub-bands may be assigned to one or more preferred stations, thereby creating a plurality of virtual networks provided by the access point. The virtual networks provided by the access point may support different authentication and encryption options. The access point may simultaneously communicate with a plurality of stations by simultaneously transmitting and/or receiving communications over the different sub-bands.

SIGNALING MESSAGE TRANSMISSION IN A WIRELESS COMMUNICATION NETWORK

Techniques for sending signaling messages in a wireless communication network are described. In an aspect, a signaling message (e.g., a reduce interference request) may be sent by mapping it to at least one specific subcarrier among a set of subcarriers reserved for sending the signaling message. The at least one subcarrier may be selected based on the message value. A signal may be sent on the at least one subcarrier in multiple symbol periods to convey the signaling message. In another aspect, a reduce interference request may be sent based on an orthogonal resource among orthogonal resources available for sending reduce interference requests. In one design, an orthogonal sequence may be selected based on the request and may be spread across a resource segment. In another design, the reduce interference request may be processed to obtain modulation symbols, and each modulation symbol may be spread across multiple subcarriers in one symbol period.

TEST LOADING IN OFDMA WIRELESS NETWORKS

A radio frequency radio (RF) transceiver that defines scheduling logic for generating transmission schedules for orthogonal frequency-division multiple access (OFDMA) RF transmissions from the RF transceiver, wherein the scheduling logic specifies at least one of a modulation type, a code rate, a sub-channel, and a sub-carrier for a plurality of symbols to be transmitted in a communication signal sub-frame. A processor generates outgoing data bits and outgoing test data bits for transmission from the RF transceiver as OFDMA transmission signals and OFDMA test data transmission signals, respectively, according to the transmission schedules to create loading within at least a portion of a cellular service area that corresponds with a test- loading value. The amount of the additional required loading is the difference between the test- loading value and an actual loading value.

SYSTEM AND METHOD FOR IMPROVED CONTROL CHANNEL TRANSMIT DIVERSITY

A method for providing transmit diversity in wireless network communications is presented. An indication of a slot structure is received. The slot structure identifies at least a first location of a reference signal within a slot. A first reference signal is transmitted within a first slot using a first antenna. A location of the first reference signal within the first slot is determined by the slot structure. A second reference signal is transmitted within the first slot using a second antenna. A location of the second reference signal within the first slot is determined by the slot structure. In some cases, the slot structure identifies a second location of a reference signal within the slot structure. The second location being offset from the first location, and a third reference signal is transmitted within the first slot at the second location on the first antenna.

MITIGATING TRANSMISSION INTERFERENCE BETWEEN DIGITAL RADIO AND BROADBAND COMMUNICATION DEVICES

A broadband device (105) can detect a proximate narrowband transmission (152) from a narrowband communication device (145). The narrowband transmission (152) can be in close enough proximity (155) to at least one bearer channel of the broadband device (105) to result in interference on the narrowband reception (152) when the broadband device (105) is transmitting and the narrowband communication device (145) is concurrently receiving. Responsive to the detecting, the broadband device (105) can gate a broadband transmission (142) to ensure the broadband transmission (142) does not interfere with the proximate narrowband reception (152). In absence of detecting the narrowband transmission (152), the broadband transmission (142) from the broadband device (105) would not be gated.

ДИНАМИЧЕСКОЕ НАЗНАЧЕНИЕ АСК-РЕССУРСА В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ

Описаны технологии для динамического назначения ресурса подтверждения приема (АСК) для абонентского устройства (UE). Для динамического планирования, сообщения планирования, может использоваться для того, чтобы отправлять информацию планирования для одной передачи данных. Для полупостоянного планирования, сообщения планирования, может использоваться для того, чтобы отправлять полупостоянное назначение для множественного числа передач данных. В аспекте по меньшей мере одно поле сообщения планирования, которое обычно используется для того, чтобы переносить информацию планирования для динамического планирования, может быть многократно использовано, чтобы переносить назначение АСК-ресурсов для полупостоянного планирования. В одной схеме, UE может принимать сообщение планирования, которое переносит полупостоянное назначение, и может получать назначение АСК-ресурса по меньшей мере из одного поля сообщения планирования. UE может принимать передачу данных, которые отправляются в соответствии с полупостоянным ...

Sequence distributing method, sequence processing method and apparatus in communication system

A sequence distributing and sequence processing method and apparatus in a communication system are provided. The sequence distributing method includes the following steps of: generating sequence groups comprising a number of sequences, the sequences in the sequence groups are determined according to the sequence time frequency resource occupation manner which is supported by the system; distributing the sequence groups to cells. The method avoids the phenomenon that signaling transmission is needed to distribute the sequences to the cells for different time frequency resource occupation manner, and saves in so far as possible the wireless network transmission resource occupied during the process of distributing the sequences through distributing the sequence groups comprising a number of sequences to the cells.

Cognitive Interference Management in Wireless Networks with Relays, Macro Cells, Micro Cells, Pico Cells and Femto Cells

Cognitive interference management in Cellular wireless network with relays and micro/pico/femto cells operated in distributed scheduling mode. A cellular system may use RS to improve capacity or for coverage extension. A RS relays the signals between BS 104 and MS by using wireless links between BS-RS and RS-MS during both downlink and uplink transmissions. Embodiments herein disclose a mechanism to explicitly indicate to the MS whether the MAC management messages sent by the BS to the MS are to inform it to perform scanning for interference measurement. Also, disclosed herein is a mechanism to explicitly indicate to the BS whether the message sent by the MS is related to interference measurement.

Downlink inter-cell interference coordination method and enb

Embodiments of the present invention disclose a downlink Inter-Cell Interference Coordination (ICIC) method and relate to the wireless communication field. The method includes: obtaining information about multiple carriers in a current cell; obtaining, according to the information about the multiple carriers, a downlink ICIC parameter corresponding to each carrier of the multiple carriers; and sending the downlink ICIC parameter corresponding to each carrier to a neighboring cell of the current cell so as to enable the neighboring cell to perform, according to the downlink ICIC parameter, downlink interference coordination with the first cell. The embodiments of the present invention are applicable to downlink ICIC in a multi-carrier system.

Method and apparatus for detecting received signal in wireless communication system

A method for detecting a received signal by a Base Station (BS) in a communication system is provided. The method includes receiving a BandWidth Request (BW REQ) indicator, determining first interference signal streams representing BW REQ messages, determining whether the first interference signal streams include at least one second interference signal stream which is in a null state, determining a first Maximum Likelihood (ML) metric, determining a second ML metric for each of a case where a value of bits constituting each of third interference signal streams except for the at least one second interference signal stream among the first interference signal streams is 1, and calculating a minimum error distance of the BW REQ messages received from Mobile Stations (MSs) based on the first ML metrics and the second ML metrics.

Mitigation of Interfering Sounding Reference Signals in Radiocommunication Systems

Sounding reference signals transmitted in one cell, and which use a same base sequence as sounding reference signals transmitted in a neighboring cell, may cause interference. Detection of signal energy on unallocated sounding resources in a cell can be used when allocating additional sounding resources in that cell. Coordination among base stations, e.g., eNodeBs, can be performed to mitigate potential sounding reference signal interference.

Mobile communication system, relay station, and base station

A mobile communication system includes a base station and a relay station. The base station transmits carrier information to the relay station during connection of a first radio link using a first carrier. The carrier information indicates at least one candidate carrier available for performing multi-carrier communication on the first radio link. The relay station transmits, to the base station, request information about a configuration of the first radio link for the at least one candidate carrier indicated by the carrier information. The base station further determines, in response to receiving the request information from the relay station, a second carrier used with the first carrier for the multi-carrier communication.

Transmit power control techniques for wireless communication systems

Methods and systems of controlling transmit power in a multi-user wireless communication system is provided. A transmit power level for a transmitter is determined according to an algorithm based in communication theory, such as an iterative water-filling procedure, which takes into account an assumption of transmit behaviours of transmitters in the communication system. Actual transmit behaviours of transmitters in the communication system are monitored using a learning algorithm to determine whether any transmitters exhibit transmit behaviours which are not consistent with the assumption.

Communication terminal, communication device, method for data communication, and method for frequency allocation

A communication terminal is described comprising a determiner configured to determine, for a frequency region, a plurality of first communication devices from which the communication terminal receives a signal via the frequency region; a selector configured to select at least one of the first communication devices based on a predetermined interference criterion; a signal generator configured to generate a signal with an identification of the at least one selected first communication device; and a transceiver configured to transmit the signal to a second communication device, to receive an indication from the second communication device specifying whether the communication terminal should use the frequency region for data communication with the second communication device, and to carry out data communication with the second communication device using the frequency region depending on the indication.

Multi-radio coexistence

Frequency bands for Industrial Scientific and Medical (ISM) communications are selected to avoid interference with the cellular communication. In one aspect of the disclosure, the frequency bands for Bluetooth/WLAN communication are selected to avoid channels that are within a predetermined distance of a harmonic of a cellular (e.g., wireless wide area network) receive frequency band. That is, a frequency band is selected that is at least a predetermined distance from the cellular receive frequency bands.

Apparatus and method for transmitting and receiving reference signal in wireless communication system

An apparatus and a method for transmitting and receiving a reference signal in a wireless communication system are provided. The method includes determining a cluster-specific reference signal configuration according a cluster configuration, transmitting information about the cluster-specific reference signal configuration, and transmitting cluster-specific reference signals of at least one cluster according to the cluster-specific reference signal configuration.

Base station apparatus, communication system, and communication method

A first base station apparatus that forms a first cell, the first base station apparatus includes an assigning unit that assigns a radio resource for a control channel between a mobile station apparatus and the first base station apparatus, and a first transmitting unit that transmits radio resource information indicating the radio resource assigned for the control channel to the second base station apparatus forming a second cell that is different from the first cell.

Digital wireless intercom system and driving method thereof

The present invention provides a digital wireless intercom system including: at least one master base station; at least one remote base station connected to the at least one master base station wiredly through at least one of a local area network, a local area network infrastructure and an internet, the at least one remote base station transmitting and receiving a synchronization signal and a data signal of digital type with the at least one master base station; a plurality of first belt packs within a transmission radius of the at least one master base station, the plurality of first belt packs transmitting and receiving the synchronization signal and the data signal with the at least one master base station wirelessly; and a plurality of second belt packs within a transmission radius of the at least one remote base station, the plurality of second belt packs transmitting and receiving the synchronization signal and the data signal with the at least one remote base station wirelessly, wherein the at least one master base station and the at least one remote base station are driven with different independent frequencies based on a frequency interference situation, and wherein the synchronization signal and the data signal transmitted and received between the at least one master base station and the at least one remote base station have different starting timings of period

Base station apparatus, mobile terminal apparatus and communication control method

The present invention makes it possible to transmit and receive CSI-RSs adequately even when the number of CSI-RSs increase following the increase of antennas. The present invention provides a base station apparatus ( 20 ) that transmits CSI-RSs to a mobile terminal apparatus ( 10 A) which is capable of receiving CSI-RSs for channel state measurement from a plurality of antennas, and to a mobile terminal apparatus ( 10 B) which is capable of receiving CSI-RSs from a smaller number of antennas than the mobile terminal apparatus, and this base station apparatus has a CSI-RS allocation section ( 211 ) which allocates CSI-RSs for the number of antennas which the mobile terminal apparatus ( 10 A) supports, to radio resources, and a transmitting/receiving section which reports, to the mobile terminal apparatus ( 10 A), the resources where the CSI-RSs are allocated, and which, upon reporting the resources where CSI-RSs are allocated, to the mobile terminal apparatus ( 10 B), reports part of the resources as resources to be muted.

Dual Band LTE Small Cell

A dual band LTE small cell base station communicates on both licensed bands and unlicensed bands. The small cell base station modifies the communication protocol utilized by the licensed band to enable communication over an unlicensed band. This modification involves replacing the physical (PHY) layer of the licensed band communication protocol with the PHY layer of a to-be-used protocol in an unlicensed band.

Method and apparatus for accessing in an equipment of a communication network

A method of accessing in an equipment of a communication network is proposed in the invention. The method comprises the steps of: receiving a message 2 from a base station, the message 2 being used for an assignment of resource to transmit a message 3, the assigned resource corresponding to N HARQ RTTs, where 1≦N≦8; and transmitting the message 3 only in part of the N HARQ RTTs. With the scheme of the invention, a MTC device selectively transmits the Msg3 in one/some HARQ RTT and maintains silence in another one/some HARQ RTT, thus the possibility of the occurrence of access collision with other UEs may be backed off, such that other UEs, particularly human-to-human UEs, may transmit the Msg3 normally. And the possibility of the occurrence of collision is reduced from the viewpoint of the user equipments in a network, reducing entirely the possibility of an access delay and access failure.

UPLINK INTERFERENCE REDUCTION AT BASE STATION WITH RESTRICTED WIRELESS ACCESS

The disclosure relates to a method in a macro base station of a heterogeneous wireless communication system, for reducing uplink interference at a radio base station with restricted wireless access. The uplink interference is caused by a user equipment served by the network node, which has a restricted wireless access to the radio base station. The method comprises receiving () measurement reports from user equipments served by the network node, and identifying () a user equipment causing uplink interference at the radio base station among the user equipments, based on the received measurement reports. The method also comprises obtaining () information relating to a total uplink received interference from the radio base station via the identified user equipment, and adjusting () a transmit power, a transmission activity, and/or a scheduling of the identified user equipment based on the obtained information, such that the uplink interference caused by the identified user equipment is reduced. 1. A method in a network node of a heterogeneous wireless communication system , for reducing uplink interference at a radio base station with restricted wireless access , the uplink interference being caused by a user equipment served by the network node , wherein the user equipment has a restricted wireless access to the radio base station , the method comprising:receiving measurement reports from one or more user equipments served by the network node,identifying a user equipment causing uplink interference at the radio base station among said one or more user equipments, based on the received measurement reports,obtaining information relating to a total uplink received interference from the radio base station via the identified user equipment, andadjusting at least one of a transmit power, a transmission activity, and a scheduling of the identified user equipment based on the obtained information, such that the uplink interference caused by the identified user equipment is ...

METHODS AND DEVICES FOR TRANSMITTING DATA

The present disclosure provides a method and device for transmitting data. The method comprises: a first user equipment receives downlink data sent from a base station through downlink resources of a special subframe; the first user equipment acquires a position of uplink resources corresponding to the first user equipment in guard period resources of the special subframe, wherein the position of the uplink resources corresponding to the first user equipment in the guard period resources of the special subframe is staggered from a position of downlink resources corresponding to a second user equipment in the special subframe, and a round-trip time of the second user equipment is greater than a round-trip time of the first user equipment; and the first user equipment sends uplink data to the base station through the uplink resources corresponding to the first user equipment in the guard period resources of the special subframe. 1. A method for transmitting data , comprising:receiving, by a first user equipment, downlink data sent from a base station through downlink resources of a subframe;acquiring, by the first user equipment, a position of uplink resources corresponding to the first user equipment in guard period resources of the subframe, wherein the position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from a position of downlink resources corresponding to a second user equipment in the subframe, and a round-trip time of the second user equipment is greater than a round-trip time of the first user equipment; andsending, by the first user equipment, uplink data to the base station through the uplink resources corresponding to the first user equipment in the guard period resources of the subframe.2. The method for transmitting the data according to claim 1 , further comprising one of the following steps:Step A: receiving, by the first user equipment, a notification of the position of ...

Transmitting apparatus, receiving apparatus, and communication system for formatting data

A transmitting apparatus, a receiving apparatus, and a communication system are provided that allow a reduction in a frame loss due to interference caused by use of the same channel. A transmitting apparatus disposed in a base station includes a GPS receiver for receiving a GPS signal, a timing generator for controlling respective function blocks in accordance with the GPS signal and an inter-base-station control signal so as to precisely synchronize the timing of frame transmission among base stations, the front-end transmission processing unit including for converting transmission information into transmission time slots, a frame generator for generating a frame including a plurality of time slots and one frame guard, and a back-end transmission processing unit for transmitting the generated frame as a radio signal.

Mobile communication system

Orthogonality between signals is maintained in direct communication between a mobile station UE# 1 and a mobile station UE# 2 . In a mobile communication system according to the present invention, a radio base station eNB is configured to transmit a data signal to the UE# 1 and the UE# 2 through a Uu interface at a frequency f 1 , the UE# 1 and the UE# 2 are configured to transmit the data signal to the radio base station eNB through the Uu interface at a frequency F 2 , the UE# 1 and the UE# 2 are configured to transmit and receive the data signal to and from each other in a time-division manner through a Ud interface at the frequency F 2 , and predetermined gaps are configured to be provided before and after timing in which the UE# 1 and the UE# 2 transmit the data signal through the Ud interface.

CHANNEL DETERMINATION METHOD AND WIRELESS COMMUNICATION APPARATUS

A channel determination method is disclosed that can avoid performance deterioration caused by interference even in a situation in which radio waves from other communication apparatuses including a microwave oven using the same frequency band are mixed. This method detects a predetermined preamble in a received signal when performing carrier sensing while switching between reception frequencies of a receiving section. The method examines, using a counter, how often electric field strength exceeds a predetermined threshold for each channel during the carrier sensing, disables, upon detecting a signal from another 802.11 apparatus, a channel from which the signal is detected and also disables a channel for which the counter shows a count value exceeding the threshold. 1. A channel determination method in a carrier sensing operation performing a signal receiving operation while switching between reception frequencies of a receiving section , the method comprising:determining whether or not electric field strength of a received signal exceeds a predetermined threshold;detecting a predetermined preamble in received data during the carrier sensing operation;determining to enable or disable a channel in which the predetermined preamble is detected in the received data, in accordance with the electric field strength of the signal;causing a counter to count up when the electric field strength of the received signal exceeds a predetermined threshold and causing the counter to count down when the electric field strength of the received signal does not exceed the predetermined threshold for each channel during the carrier sensing operation; anddisabling each channel when the count value of the counter of a corresponding one of the channels reaches a predetermined value.2. The channel determination method according to claim 1 , further comprising disabling a channel from which the predetermined preamble is detected claim 1 , a channel closer to a low-frequency side than the ...

Dual Band LTE Small Cell

A dual band LTE small cell base station communicates on both licensed bands and unlicensed bands. The small cell base station modifies the communication protocol utilized by the licensed band to enable communication over an unlicensed band. This modification involves replacing the physical (PHY) layer of the licensed band communication protocol with the PHY layer of a to-be-used protocol in an unlicensed band. 1. A wireless communication method , the method comprising:identifying one or more channels in an unlicensed band and one or more channels in a licensed band available for communication between a small cell base station and a user equipment;measuring channel information for at least one of the one or more channels in the unlicensed band and the one or more channels in the licensed band; transmitting data channel information to the user equipment on the one or more channels in the unlicensed band according to LTE protocol; and', 'transmitting control channel information to the user equipment on the one or more channels in the licensed band according to LTE protocol., 'based on the measured channel information, transmitting, from the small cell base station to the user equipment, information on the one or more channels in the unlicensed band and the one or more channels in the licensed band, wherein the transmitting comprises2. The method of wherein transmitting data channel information to the user equipment on the one or more channels in the unlicensed band according to LTE protocol comprises:modifying LTE protocol to enable communication on the one or more channels in the unlicensed band.3. The method of wherein modifying LTE protocol to enable communication on the one or more channels in the unlicensed band comprises:replacing a physical layer component of LTE protocol with a physical layer component of an unlicensed band communication protocol.4. The method of wherein the unlicensed band is the 5 GHZ band.5. The method of wherein the unlicensed band is the 2 ...

Mapping special subframes in a wireless communication network

Methods, apparatuses, and systems are described related to mapping special subframes in a wireless communication network. In embodiments, an eNB may assign demodulation reference signals (DM-RSs) and/or cell-specific reference signals (CRSs) to a downlink pilot time slot (DwPTS) of a special subframe responsive to a determined configuration of the special subframe. In embodiments, an eNB may bundle the DwPTS or an uplink pilot time slot (UpPTS) of the special subframe with another subframe for scheduling. In embodiments, a UE may estimate a channel associated with the special subframe based on DM-RSs and/or CRSs transmitted in another subframe. In embodiments, an eNB may exclude the DwPTS from scheduling for certain special subframe configurations if a new carrier type (NCT) is used. In embodiments, an eNB may exclude certain special subframe configurations from use for NCT communications. Other embodiments may be described and claimed.

TRACKING RADAR FREQUENCY ENABLING MORE CHANNELS

In an example embodiment, a channel that includes a plurality of sub-channels is sampled to detect pulses indicative of a presence of a radar signal. A frequency for the radar signal is determined. If the frequency of the radar signal maps to a selected subset of the plurality of sub-channels, the selected subset of the plurality of sub-channels are determined to be unavailable due to radar, while the remaining sub-channels remain available for use. The selected subset of the plurality of sub-channels determined to be unavailable due to radar may be selectively returned for use after the radar signal is no longer detected for a predetermined selected time period. 1. Logic encoded in a tangible , non-transitory computer readable medium for execution and when executed by a processor operable to:select a wide band channel comprising a plurality of sub-channels;detect a primary user on the wide band channel;map the detected primary user to a first sub-channel of the plurality of sub-channels in accordance with a frequency of the primary user; andenable communication on a selected second sub-channel of the plurality of sub-channels that does not include the frequency of the primary user.2. The logic set forth in claim 1 , further operable to disable communication on the first sub-channel.3. The logic set forth in claim 1 , further operable to:associate the first sub-channel with first data representative of the first sub-channel being unavailable for communication by a secondary user of the plurality of sub-channels; and,communicate the first data to an associated device.4. The logic set forth in claim 1 , further operable to determine whether the frequency of the primary user is within a predetermined limit of an adjacent sub-channel; andwherein the communication is enabled on a sub-channel selected from the plurality of sub-channels does not include the adjacent channel.5. The logic set forth in claim 4 , wherein the predetermined limit is based on a frequency ...

INTEGRATED CIRCUIT FOR CONTROLLING RADIO COMMUNICATION

Provided is a radio communication device which can prevent interference between SRS and PUCCH when the PUCCH transmission bandwidth fluctuates and suppress degradation of CQI estimation accuracy by the band where no SRS is transmitted. The device includes: an SRS code generation unit () which generates an SRS (Sounding Reference Signal) for measuring uplink line data channel quality; an SRS arrangement unit () which frequency-multiplexes the SRS on the SR transmission band and arranges it; and an SRS arrangement control unit () which controls SRS frequency multiplex so as to be uniform in frequency without modifying the bandwidth of one SRS multiplex unit in accordance with the fluctuation of the reference signal transmission bandwidth according to the SRS arrangement information transmitted from the base station and furthermore controls the transmission interval of the frequency-multiplexed SRS. 1. A mobile station apparatus , comprising:circuitry which, in at least one mode of operation, maps a reference signal to a plurality of frequency resources in a frequency band, the frequency band having a variable transmission bandwidth within a system bandwidth, the variable transmission bandwidth being provided between control channels mapped to both ends of the system bandwidth, wherein each of the plurality of frequency resources is of a fixed bandwidth and the plurality of frequency resources are uniformly distributed in the frequency band and a time domain according to the variable transmission bandwidth; anda transmitter which, in at least the one mode of operation, transmits the reference signal.2. The mobile station apparatus according to wherein the transmission bandwidth is variable in the system bandwidth while a central frequency of the transmission bandwidth remains the same.3. The mobile station apparatus according to wherein in at least one mode of operation claim 1 , each of the plurality of frequency resources has a fixed bandwidth regardless of the ...

RESOURCE UNIT SPREADING

This disclosure provides methods, devices, and systems for wireless communications. In some systems, an access point (AP) may assign a resource unit (RU) including a non-contiguous set of tones of a channel to a wireless node, such as a station (STA). The non-contiguous set of tones includes at least some tones that are non-contiguous in the frequency domain with all other tones of the set. The AP may generate an indicator for this RU and may transmit the indicator to the wireless node. The wireless node may receive the indicator, determine the non-contiguous set of tones for the indicated RU, and transmit data over the non-contiguous set of tones for the RU. The AP may receive the data via the RU (over the non-contiguous set of tones). 1. A method for wireless communications , comprising:assigning a first resource unit (RU) to a first wireless node, wherein the first RU comprises a first non-contiguous set of tones of a channel;generating a first indicator indicating the first RU;outputting the first indicator for transmission; andobtaining data from the first wireless node via the first RU.2. The method of claim 1 , further comprising:assigning a second RU to a second wireless node, wherein the second RU comprises a second non-contiguous set of tones of the channel;generating a second indicator indicating the second RU;outputting the second indicator for transmission; andobtaining data from the second wireless node via the second RU, wherein the data from the first wireless node and the data from the second wireless node are obtained concurrently.3. The method of claim 2 , wherein the first non-contiguous set of tones is interspersed with the second non-contiguous set of tones.4. The method of claim 2 , further comprising:generating a trigger frame comprising the first indicator and the second indicator; andoutputting the trigger frame for transmission, wherein outputting the trigger frame comprises outputting the first indicator and outputting the second ...

Method and apparatus for sequence distributing and sequence processing in communication system

A sequence distributing and sequence processing method and apparatus in a communication system are provided. The sequence distributing method includes the following steps: generating sequence groups including a number of sequences, the sequences in the sequence groups are determined according to the sequence time frequency resource occupation manner which is supported by the system; distributing the sequence groups to cells. The method avoids the phenomenon that signaling transmission is needed to distribute the sequences to the cells for different time frequency resource occupation manner, and saves in so far as possible the wireless network transmission resource occupied during the process of distributing the sequences through distributing the sequence groups comprising a number of sequences to the cells.

Radio communication device and radio communication method

Provided is a radio communication device capable of reducing interference, caused by non-SR transmission, with a basic service set (BSS) performing spatial reuse (SR) transmission. An SR transmission resource control unit ( 107 ) of the radio communication device (SR initiator) ( 100 ) determines transmission resources for an SR signal to be transmitted by means of SR to a second BSS other than a first BSS to which the radio communication device ( 100 ) belongs on the basis of radio quality information transmitted from other radio communication devices (SR responders) in the first BSS. A radio transmission/reception unit ( 101 ) transmits the SR signal by using the determined transmission resources.

Bypassing radar in wide dynamic frequency selection (dfs) channels utilizing puncturing

Bypassing radar in wide Dynamic Frequency Selection (DFS) channels utilizing puncturing may be provided. A first client device may be classified as eligible for puncturing and a second client device may be classified as not eligible for puncturing. Next, it may be determined that a subchannel in a bandwidth range should not be used. Then, in response to determining that the subchannel in the bandwidth range should not be used, the first client device may be steered to a first subset of the bandwidth range and the second client device may be steered to a second subset of the bandwidth range. The second subset of the bandwidth range may be smaller than the first subset of the bandwidth range.

SYSTEMS AND METHODS FOR EFFICIENT TRAFFIC OFFLOAD WITHOUT SERVICE DISRUPTION

Methods, systems, and devices for offloading traffic flows without service disruption are disclosed herein. User equipment (UE) is configured to receive an indication that a current packet data network (PDN) connection can be optimized. The current PDN connection is established over a first PDN gateway (PGW). The UE requests connection over a new PDN connection to a same type of service as the current PDN connection without releasing the connection over the first PGW. The UE routes new traffic flows over a second PGW corresponding to the new PDN connection and routes old traffic flows over the first PGW. 120-. (canceled)21. An apparatus for a network node for a network , the network node configured to provide mobility management for a user equipment (UE) wirelessly connectable to the network , the apparatus comprising:a memory interface to send or receive, to or from a memory device, user equipment (UE) information regarding a point of attachment to the network; and process the information to determine whether a user plane connection of the UE needs to be relocated; and', 'generate a message to indicate a request for the user plane connection to be relocated by release of a first user plane connection to the network after establishment of a second user plane connection to the network., 'a processor to22. The apparatus of claim 21 , in which the message is a non-access stratum (NAS) message.23. The apparatus of claim 21 , in which the message is generated for the UE.24. The apparatus of claim 21 , wherein the processor is further configured to perform operations of a mobility management function.25. The apparatus of claim 21 , in which the information regarding the point of attachment to the network is based on a geographic location of the UE.26. A method for a network node claim 21 , the method comprising:processing information to determine whether a user plane connection of a user equipment (UE) needs to be relocated within a network including the network node; ...

DETECTION AND MITIGATION OF INGRESS INTERFERENCE WITHIN COMMUNICATION LINKS

A system and process that incorporates teachings of the subject disclosure may include, for example, an interference monitor configured to detect occurrences of unintended signals within a communications link. A communications link may carry a down-converted format of a satellite signal from an earth terminal to an integrated receiver and decoder for further network distribution. Depending upon the nature of any such detected unintended signals, the communications link can be “swapped out” for a redundant communications link carrying a down-converted format of the same satellite signal obtained by way of a redundant earth terminal. Other embodiments are disclosed.

Preamble Detection on a Communication Channel

Described herein are apparatuses for receiving preamble information via a channel between a first device and a second device. An apparatus is configured to scan a band of multiple carriers associated with the channel, determine a first carrier associated with the channel from the band of multiple carriers, wherein a first channel quality metric associated with the first carrier is greater than a threshold channel quality metric, receive, on the first carrier, the preamble information from the first device, determine a second carrier associated with the channel from the band of multiple carriers, wherein a second channel quality metric associated with the second carrier is greater than the threshold channel quality metric, receive, on the second carrier, the preamble information from the first device, and determine, based on receipt of the preamble information from the first device, a start of a data packet transmission from the first device. 1. An apparatus for receiving preamble information via a channel at a second device from a first device , the apparatus comprising: a processor coupled to the I/O module, the processor configured to:', 'scan a band of multiple carriers associated with the channel;', 'determine a first carrier associated with the channel from the band of multiple carriers associated with the channel, wherein a first channel quality metric associated with the first carrier is greater than a threshold channel quality metric;', 'receive, on the first carrier, the preamble information from the first device;', 'determine a second carrier associated with the channel from the band of multiple carriers associated with the channel, wherein a second channel quality metric associated with the second carrier is greater than the threshold channel quality metric;', 'receive, on the second carrier, the preamble information from the first device; and', 'determine, based on the receipt of the preamble information on the first carrier and the second carrier, a ...

System and method for in band full duplex communication in radio network

The embodiments herein provide a method for In Band Full Duplex (IBFD) communication in a radio network including at least one IBFD node, at least one first non-IBFD User Equipment (UE) and at least one second non-IBFD UE. The method includes transmitting by the at least one IBFD node a first signal to the at least one first non-IBFD UE over a forward channel, and receiving by the at least one IBFD node a second signal from the at least one second non-IBFD UE over the same forward channel simultaneously, where the second signal includes at least one of a pilot signal, Channel State Information (CSI), and control information, where the forward channel is orthogonal to a reverse channel in at least one of time, frequency, space, and code.

User terminal and radio communication method

A user terminal according to one aspect of the present disclosure includes: a receiving section that receives at least one signal of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS); and a control section that measures interference by using the signal in a first resource specified in a specification. According to one aspect of the present disclosure, interference can be measured appropriately.

Method and system for communicating data over residential power lines

Using residential power lines communication (PLC) as the last hop of the CPRI-based front-haul to the indoor users, where unmodified time division multiplexed (TDM) CPRI hyper-frames are transported in between the outdoor distributed unit (DU) and the indoor radio unit (RU) transparently. To countermeasure the hostile environment of power lines, proposed is a novel device, called CPRI-PLC-Gateway (CPG), which serves as an agent for creating a virtual CPRI link between the DU and RU. The proposed CPG aims to meet the desired CPRI options in the presence of the noisy PLC channel while remaining completely transparent to the CPRI protocol operation.

LINK ADAPTATION FOR CONCURRENT OFDMA AND NON-OFDMA SIGNALING

Embodiments include methods for a network node configured to communicate with wireless devices via orthogonal frequency division multiple access (OFDMA) signaling and non-OFDMA signaling. Such methods include creating a frequency gap in the OFDMA signaling, with the frequency gap including one or more adjacent OFDM sub-carriers. Such methods include selecting a center frequency for the non-OFDMA signaling to be within the frequency gap and selecting one or more modulation and coding schemes (MCS) for the OFDMA signaling based on interference to the OFDMA signaling by the non-OFDMA signaling. Other embodiments include network nodes configured to perform such methods, and computer-readable media storing computer-executable instructions that embody such methods. 1. A method for a network node configured to communicate with wireless devices via orthogonal frequency division multiple access (OFDMA) signaling and non-OFDMA signaling , the method comprising:creating a frequency gap in the OFDMA signaling, wherein the frequency gap includes one or more adjacent OFDM sub-carriers;selecting a center frequency for the non-OFDMA signaling to be within the frequency gap; andselecting one or more modulation and coding schemes (MCS) for the OFDMA signaling based on interference to the OFDMA signaling by the non-OFDMA signaling.2. The method of claim 1 , wherein selecting the one or more MCS for the OFDMA signaling comprises:selecting a nominal MCS for the OFDMA signaling; andadjusting the MCS of sub-carriers of the OFDMA signaling that are adjacent to the frequency gap to an MCS that is more robust than the nominal MCS.3. The method of claim 1 , further comprising selecting an MCS for the non-OFDMA signaling based on interference to the non-OFDMA signaling by the OFDMA signaling.4. The method of claim 1 , further comprising selecting a size of the frequency gap such that the interference to the OFDMA signaling by the non-OFDMA signaling is not greater than a minimum signal-to- ...

License Assisted Access Communication with Dynamic Use of Request-to-Send and Clear-to-Send Messages

This disclosure relates to performing cellular communication in unlicensed spectrum in a manner that accounts for the possible existence of hidden nodes by opportunistically introducing the use of RTS and CTS messages. A listen-before-talk procedure may be performed to determine whether a wireless medium is available. When the listen-before-talk procedure is complete, an amount of time until a next possible start time for communicating in the cellular communication system according to a timing synchronization scheme for the cellular communication system may be determined. The wireless medium may be occupied until the next possible start time for communicating in the cellular communication system in a manner selected based at least in part on the amount of time until the next possible start time for communicating in the cellular communication system. Cellular communication may be performed on the wireless medium at the next possible start time for communicating in the cellular communication system. 1. An apparatus , comprising:a processing element configured to cause a wireless device to:perform a listen-before-talk (LBT) procedure to determine whether a wireless medium is available, wherein the wireless medium comprises unlicensed spectrum;determine, when the LBT procedure is complete, an amount of time until a next possible start time for communicating in a cellular communication system according to a timing synchronization scheme for the cellular communication system;occupy the wireless medium until the next possible start time for communicating in the cellular communication system in a manner selected based at least in part on the amount of time until the next possible start time for communicating in the cellular communication system; andperform cellular communication on the wireless medium at the next possible start time for communicating in the cellular communication system.2. The apparatus of claim 1 ,wherein the wireless medium is occupied until the next ...

SYSTEMS AND METHODS FOR UPLINK DMRS ENHANCEMENT IN FD-MIMO

The present disclosure includes systems and methods for reducing intra-cell interference during uplink MU-MIMO. An uplink grant that allocates a plurality of resource blocks is obtained. A first portion of the plurality of RBs that are overlapping with a set of RBs granted to a second UE is determined. A second portion of the plurality of RBs that are non-overlapping with the set of RBs granted to the second UE is also determined. A first demodulation reference signal (DMRS) sequence is generated for the first portion of the plurality of RBs. A second DMRS sequence is generated for the second portion of the plurality of RBs, where the second DMRS sequence is different than the first DMRS sequence. An uplink transmission (e.g., PUCCH, PUSCH) is generated that includes RBs having different DMRS sequences. 1. An apparatus of a user equipment (UE) for wireless communication , the apparatus comprising: obtain an uplink grant for a plurality of resource blocks (RBs);', 'determine a first portion of the plurality of RBs that are overlapping with a set of RBs granted to a second UE;', 'determine a second portion of the plurality of RBs that are non-overlapping with the set of RBs granted to the second UE;', 'generate a first demodulation reference signal (DMRS) sequence for the first portion of the plurality of RBs; and', 'generate a second DMRS sequence for the second portion of the plurality of RBs, wherein the second DMRS sequence is different from the first DMRS sequence., 'one or more processors to2. The apparatus of claim 1 , wherein the one or more processors are further to:map the first DMRS sequence to a plurality of resource elements in each RB in the first portion of the plurality of RBs; andmap the second DMRS sequence to a plurality of resource elements in each RB in the second portion of the plurality of RBs.3. The apparatus of claim 1 , wherein the first DMRS sequence is based on a first root sequence and the second DMRS sequence is based on a second root ...

System and method for an improved communication channel

The systems and methods disclosed herein are generally directed to the real-time symbol rate of modulation modification based on noise and interference detection on a received signal during data transmission across a network. In one embodiment, a receiving device can measure the power of affected carriers, subcarriers, and/or tones. In one embodiment, adaptive bit loading can be used such that a lower order modulation scheme can be used to overcome through the noise and increase the Signal-to-noise ratio (SNR) of the transmitted signal. In one embodiment, more throughput (for example, more bps/Hz) can be achieved in the network by using subcarriers that have a higher SNR. Further, the bit-loading can serve to maximize the data rate subject to power and bit-error ratio (BER) constraints of the network.

SYSTEMS AND METHODS FOR LTE INGRESS CHARACTERIZE USING PNM METRICS

A communication device in a communication network includes at least one processor. The processor is configured to identify a first management information base (MIB) of a first occupied channel in the communication network, and a second MIB of a second occupied channel in the communication network adjacent the first occupied channel. The second occupied channel occupies a frequency band overlapping with an interfering signal band. The processor is further configured to calculate at least one proactive network maintenance (PNM) metric for each of the first and second MIB, and determine, from the calculated PNM metric, that an ingress of the interfering signal is detected on the second occupied channel. 1. A communication device in a communication network , the communication device comprising at least one processor configured to:identify a first management information base (MIB) of a first occupied channel in the communication network;identify a second MIB of a second occupied channel in the communication network adjacent the first occupied channel, wherein the second occupied channel occupies a frequency band overlapping with an interfering signal band;calculate at least one proactive network maintenance (PNM) metric for each of the first and second MIB; anddetermine, from the calculated PNM metric, that an ingress of the interfering signal is detected on the second occupied channel.2. The device of claim 1 , wherein the calculated PNM metric comprises a modulation error ratio (MER) measurement of the first and second occupied channels.3. The device of claim 2 , wherein the processor is further configured to identify an ingress signature of the interfering signal band from the MER measurement.4. The device of claim 3 , wherein the processor is further configured to determine the ingress of the interfering signal based on a comparison of the MER measurement against a threshold value.5. The device of claim 1 , wherein the calculated PNM metric comprises a full band ...

OUT-OF-BAND HIDDEN NODE DETECTION

Methods, systems, and devices are described for wireless communication. A wireless device, such as a station or an access point, may transmit a first out-of-band signal and may update a first list of neighboring devices based on receiving a second out-of-band signal from the neighboring devices. The device may exclude some neighboring devices from the first list based on the received signal strength indicator or the operating band of the neighboring device. The device may receive, from one or more associated peers, a second list of neighboring devices to the associated peer. The device may then compare its neighbor list to the neighbor list of its associated peer, and may identify additional neighbors in the associated peer's list that are unlisted in its own neighbor list, where the additional neighbors may operate on an overlapping channel. Based on the comparison, the device may change an operation mode before transmitting. 1. A method of wireless communication , comprising:transmitting a first out-of-band signal;updating a first list of one or more neighboring devices based at least in part on receiving a second out-of-band signal from the one or more neighboring devices;receiving, from one or more associated peers, a second list of one or more neighboring devices to the one or more associated peers;comparing the first list to the second list; andchanging an operation mode based at least in part on the comparison.2. The method of claim 1 , wherein the first out-of-band signal is transmitted on a Bluetooth low energy (BLE) channel.3. The method of claim 1 , wherein the first out-of-band signal comprises a media access channel (MAC) address claim 1 , a hashed medium access control (MAC) address claim 1 , a basic service set identification (BSSID) claim 1 , a hashed BSSID claim 1 , an operation band claim 1 , a channel number claim 1 , a channel bandwidth claim 1 , or any combination thereof.4. The method of claim 1 , wherein the first list of the one or more ...

Dynamic configuration of uplink (ul) and downlink (dl) frame resources for a time division duplex (tdd) transmission

Technology for a user equipment (UE) operable to perform adaptive time division duplexing (TDD) hybrid automatic repeat request (HARQ)-ACKnowledgement (ACK) reporting is described. The UE can implement an adaptive uplink-downlink (UL-DL) configuration received from an eNodeB. The UE can process a downlink (DL) HARQ reference configuration received from the eNodeB for a serving cell. The DL HARQ reference configuration can be for the implemented adaptive UL-DL configuration. The UE can format HARQ-ACK feedback for transmission on a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) of the serving cell in accordance with the DL HARQ reference configuration.

USER APPARATUS

A user apparatus includes: a receiver configured to perform predetermined measurement for a resource set in direct communication between terminals, the resource set having a likelihood of being used by another group to which the user apparatus does not belong; a control unit configured to determine, based on a result of the predetermined measurement, whether an effect from said another group having a likelihood of using the resource set is acceptable; and a transmitter configured to use the resource set to perform transmission to another user apparatus when a determination is made that the effect from said another group that uses the resource set is acceptable. 1. A user apparatus comprising:a receiver configured to perform predetermined measurement for a resource set in direct communication between terminals, the resource set having a likelihood of being used by another group to which the user apparatus does not belong;a control unit configured to determine, based on a result of the predetermined measurement, whether an effect from said another group having a likelihood of using the resource set is acceptable; anda transmitter configured to use the resource set to perform transmission to another user apparatus when a determination is made that the effect from said another group that uses the resource set is acceptable.2. The user apparatus as claimed in claim 1 , wherein the control unit determines claim 1 , based on the result of the predetermined measurement claim 1 , whether said another group using the resource set exists within a distance at which the resource set is reusable.3. The user apparatus as claimed in claim 1 , wherein the control unit:determines, as a threshold, a value calculated from RSRP (Reference Signal Received Power) sample values obtained by the receiver by measuring a reference signal related to the resource set at a time, by sorting the RSRP sample values in ascending order, and averaging the RSRP sample values within a predetermined ratio ...

TRANSMITTING APPARATUS, RECEIVING APPARATUS, AND COMMUNICATION SYSTEM FOR FORMATTING DATA

A transmitting apparatus, a receiving apparatus, and a communication system are provided that allow a reduction in a frame loss due to interference caused by use of the same channel. A transmitting apparatus disposed in a base station includes a GPS receiver for receiving a GPS signal, a timing generator for controlling respective function blocks in accordance with the GPS signal and an inter-base-station control signal so as to precisely synchronize the timing of frame transmission among base stations, the front-end transmission processing unit including for converting transmission information into transmission time slots, a frame generator for generating a frame including a plurality of time slots and one frame guard, and a back-end transmission processing unit for transmitting the generated frame as a radio signal. 1. A transmitting apparatus comprisingfront-end transmission processing unit for converting transmission signal into a transmission time slot; anda frame generator for generating a frame including a series of n (integer equal to or greater than 1) time slots and a frame guard period added to the series of n time slots to suppress a frame loss due to interference; anda back-end transmission processing unit for transmitting the generated frame as a radio signal.225.-. (canceled) This application is a continuation of and claims the benefit under 35 U.S.C. §120 of U.S. patent application Ser. No. 14/032,403, titled “TRANSMITTING APPARATUS, RECEIVING APPARATUS, AND COMMUNICATION SYSTEM FOR FORMATTING DATA,” filed on Sep. 20, 2013, which is a continuation of and claims the benefit under 35 U.S.C. §120 of U.S. patent application Ser. No. 13/160,699, titled “TRANSMITTING APPARATUS, RECEIVING APPARATUS, AND COMMUNICATION SYSTEM FOR FORMATTING DATA,” filed on Jun. 15, 2011, which is a continuation of and claims the benefit under 35 U.S.C. §120 of U.S. patent application Ser. No. 11/004,256, titled “TRANSMITTING APPARATUS, RECEIVING APPARATUS, AND COMMUNICATION ...

REMOTE INTERFERENCE MITIGATION FOR PHYSICAL UPLINK SHARED CHANNEL (PUSCH)

Embodiments include exemplary methods and/or procedures for receiving a physical uplink shared channel (PUSCH) in a cell of a time-division-duplexed (TDD) radio access network (RAN). Embodiments include determining whether remote base station interference is present in uplink transmissions in the cell and, based on the determining result, configuring activation or deactivation of code block group (CBG) based retransmissions in the cell, sending control messages to one or more UEs in the cell, for applying the configuration, and decoding subsequent PUSCH transmissions received from the one or more UEs based on the configuration. Embodiments also include network nodes configured to perform the exemplary methods and/or procedures. 1. A method for receiving a physical uplink shared channel , PUSCH , in a cell of a radio access network applying time-division-duplex communication , the method being performed by a base station serving the cell , the method comprising:determining whether remote base station interference, RI, is present for PUSCH transmissions in the cell;based on the determining result, configuring one of activation and deactivation of code block group, CBG, based retransmissions in the cell;sending control messages to one or more user equipment, UEs, in the cell, for applying the configuration; anddecoding subsequent PUSCH transmissions received from the one or more UEs based on the configuration.2. The method according to claim 1 , wherein activation of CBG-based retransmissions is configured when it is determined that RI is present for PUSCH transmissions in the cell.3. The method according to claim 2 , wherein deactivation of CBG-based retransmissions is configured when it is determined that RI is no longer present for PUSCH transmissions in the cell.4. The method according to claim 1 , wherein determining whether RI is present comprises determining that RI is present when receiving RI management reference signals claim 1 , RIM-RS claim 1 , transmitted ...

HYBRID AUTOMATIC REPEAT/REQUEST (HARQ) SCHEDULING

Various aspects described herein relate to communicating hybrid automatic repeat/request (HARQ) feedback. A HARQ communication can be received over a set of one or more links based on a first scheduling grant. HARQ feedback for the HARQ communication including at least one of HARQ feedback for one or more of the set of one or more links can be transmitted. 1. A method for communicating hybrid automatic repeat/request (HARQ) feedback , comprising:receiving a HARQ communication over a set of one or more links based on a first scheduling grant; andtransmitting HARQ feedback for the HARQ communication including at least one of HARQ feedback for one or more of the set of one or more links.2. The method of claim 1 , further comprising:determining one or more interference parameters related to receiving the HARQ communication; anddetermining one or more predicted interference parameters for a next HARQ communication.3. The method of claim 2 , wherein the HARQ feedback includes the one or more interference parameters claim 2 , and/or the one or more predicted interference parameters.4. The method of claim 2 , wherein determining the one or more interference parameters comprises:detecting the one or more interference parameters or control messages of neighboring cells.5. The method of claim 4 , wherein each of the one or more interference parameters may correspond to one or more interfering nodes that are detected as transmitting in a similar time period and/or using similar resources as an entity transmitting the HARQ communication.6. The method of claim 4 , wherein determining the one or more interference parameters comprises:detecting distinct interference parameters of dominant interferers over each link based on measuring pilot signals or control channels from one or more interfering nodes, or detecting periodic null-tones of the one or more interfering nodes for determining one or more interference parameters of the one or more interfering nodes.7. The method of claim ...

Methods And Apparatus For An Extensible And Scalable Control Channel For Wireless Networks

Methods and apparatus to enable an extensible and scalable control channel for wireless networks. In one embodiment, an Enhanced Physical Downlink Control Channel (ePDCCH) is disclosed that is implemented with a flexible number of Physical Resource Blocks (PRBs). Advantages of the ePDCCH include, for example: more efficient spectral utilization, better frequency management across multiple serving entities (e.g., base stations and remote radio heads), and extensible payload capabilities that can scale to accommodate higher or lower control information payloads, as compared to prior art PDCCH solutions. 120-. (canceled)21. A method , comprising:determining a first frequency partition of a plurality of frequency partitions in a system bandwidth, wherein each of the plurality of frequency partitions contains one or more control channel regions;decoding a control channel from a portion of resources of a first control channel region of the one or more control channel regions, wherein the control channel is decoded based on at least one control channel element that is mapped to resources that are distributed in time and frequency in the first control channel region, wherein the first control channel region is of a scalable size; andextracting control channel information from the control channel.22. The method of claim 21 , further comprising:receiving an update for a second control channel region for receiving control information.23. The method of claim 22 , wherein the second control region is in a second frequency partition of the plurality of frequency partitions.24. The method of claim 21 , further comprising:receiving an identification of the first control channel region for receiving control information within the first frequency partition.25. The method of claim 21 , further comprising:identifying the first control channel region by decoding multiple hypotheses across one or more of the control channel regions.26. The method of claim 21 , wherein a number of the ...

MOBILE COMMUNICATION SYSTEM, BASE STATION DEVICE AND RELAY DEVICE

A mobile communication system capable of preventing interference in a communication system as well as reducing the load of a user equipment in a search operation. In the mobile communication system, radio communication is performed using a carrier having the same frequency in a direct link between a donor cell and a user equipment being served thereby and an access link between a relay node and a user equipment being served thereby. In a backhaul link between the donor cell and the relay node, radio communication is performed using a carrier having a different frequency from that of the carrier used in the direct link and the access link. 1. (canceled)2. A mobile communication system comprising:a base station device;a user equipment device configured to perform radio communication with said base station device; anda relay device configured to relay the radio communication between said base station device and said user equipment device,wherein said base station device transmits frequency information for said relay device to said relay device, andsaid relay device receives said frequency information transmitted from said base station device.3. The mobile communication system according to claim 2 , wherein claim 2 , in a state where said base station device has an RRC connection with said relay device claim 2 , said base station device transmits said frequency information for said relay device to said relay device claim 2 , and said relay device receives said frequency information transmitted from said base station device.4. The mobile communication system according to claim 2 , wherein claim 2 , through a dedicated information notification between said base station device and said relay device claim 2 , said base station device transmits said frequency information for said relay device to said relay device claim 2 , and said relay device receives said frequency information transmitted from said base station device.5. The mobile communication system according to claim ...

Methods of Enabling Multiuser Superposition Transmission

Methods of enabling multiuser superposition transmission (MUST) in LTE systems are proposed. MUST operation allows simultaneous transmission for multiple co-channel users on the same time-frequency resources. A higher-layer signaling is used for configuring a UE to enable MUST in each transmission mode (TM). MUST is a sub-TM of each TM. When a UE is configured by higher layer to enable MUST, the UE will monitor new DCI formats supported by the configured TM with new fields carrying scheduling information of another co-channel UE. Dynamic switching between MUST and non-MUST operation is allowed. Mixed transmission schemes and precoders among co-channel UEs are also supported. 1. A method , comprising:receiving a higher-layer signaling from a base station by a user equipment (UE) in a mobile communication network to determine whether multiuser superposition transmission (MUST) is enabled;detecting a physical-layer control signaling related to data transmission based on the higher-layer signaling, wherein the physical-layer control signaling is carried by a MUST-supporting downlink control information (DCI) format for a configured transmission mode if MUST is enabled, otherwise the physical-layer control signaling is carried by a legacy DCI format for the configured transmission mode if MUST is not enabled;decoding the MUST-supporting DCI format to determine scheduling information of the UE and MUST-related information of a co-channel UE; andapplying interference cancellation of a superposed interference signal from the co-channel UE based on the MUST-related information.2. The method of claim 1 , wherein the MUST-related information comprises power allocation information among the UE and the co-channel UE.3. The method of claim 1 , wherein the MUST-related information comprises an indication of a modulation order or a modulation and coding scheme (MCS) used by the data transmission intended for the co-channel UE.4. The method of claim 1 , wherein the MUST-related ...

BYPASSING RADAR IN WIDE DYNAMIC FREQUENCY SELECTION (DFS) CHANNELS UTILIZING PUNCTURING

Bypassing radar in wide Dynamic Frequency Selection (DFS) channels utilizing puncturing may be provided. A first client device may be classified as eligible for puncturing and a second client device may be classified as not eligible for puncturing. Next, it may be determined that a subchannel in a bandwidth range should not be used. Then, in response to determining that the subchannel in the bandwidth range should not be used, the first client device may be steered to a first subset of the bandwidth range and the second client device may be steered to a second subset of the bandwidth range. The second subset of the bandwidth range may be smaller than the first subset of the bandwidth range. 1. A method comprising:classifying a first client device as eligible for puncturing, wherein classifying the first client device as eligible for puncturing comprises performing over-the-air testing on the first client device to determine a filtering quality corresponding to the first client device;classifying a second client device as not eligible for puncturing, wherein classifying the second client device as not eligible for puncturing comprises performing over-the-air testing on the second client device to determine a filtering quality corresponding to the second client device;determining that a subchannel in a bandwidth range should not be used; andsteering, in response to determining that the subchannel in the bandwidth range should not be used, the first client device to a first subset of the bandwidth range and the second client device to a second subset of the bandwidth range, wherein the second subset of the bandwidth range is smaller than the first subset of the bandwidth range.2. The method of claim 1 , wherein:performing the over-the-air testing on the first client device comprises measuring a difference in energy between the first client device's at least one assigned subchannel and at least one nulled subchannel; andperforming the over-the-air testing on the second ...

COEXISTENCE INTERFERENCE REPORTING MECHANISM

The invention relates methods for interference reporting by a mobile terminal in a mobile communication system. The invention is also providing apparatus for performing these methods, and computer readable media the instructions of which cause the apparatus to perform the methods described herein. In order to allow for interference reporting, the mobile terminal detects an interference condition between the communication with the base station via the first resource and a communication with the wireless communication device via the second resource, reports on the interference condition to the base station; receives reconfiguration information indicating a third resource and reconfigures the communication with the base station to the third resource. Further, the mobile terminal detects whether or not the interference condition persists for potential communications with the base station via the first resource, and, in case the interference condition has been re(optional) solved, reports on an interference resolution to the base station. 1. A method for interference reporting by a mobile terminal in a mobile communication system including a base station and a wireless communication device , the mobile terminal being in communication with the base station via a first resource and being configured for communication with the wireless communication device via a second resource , the method comprising the steps of:detecting, by the mobile terminal, an interference condition between the communication with the base station via the first resource and a communication with the wireless communication device via the second resource;reporting, by the mobile terminal, on the interference condition to the base station;receiving, by the mobile terminal, reconfiguration information indicating a third resource for communication with the base station and reconfiguring the communication with the base station to the third resource; anddetecting, by the mobile terminal, whether or not the ...

STAGGERED PILOT PLACEMENT

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be configured to receive a plurality of combined signals. Each combined signal may be on a tone of a plurality of tones. The apparatus may be configured to determine a first pilot signal on a first tone of the plurality of tones. The apparatus may be configured to generate an interference-reduced signal for the first tone by canceling the determined first pilot signal from a first combined signal on the first tone. 1. An apparatus for wireless communication , comprising: map, at a first user equipment (UE), a first set of pilot symbols and a first set of data symbols to a plurality of tones, each pilot symbol in the first set of pilot symbols being mapped on a tone that is used by a second UE to carry a data symbol; and', 'provide the mapped first set of pilot symbols and the mapped first set of data symbols for transmission over the plurality of tones., 'a processing system configured to2. The apparatus of claim 1 , wherein a data symbol in the first set of data symbols is mapped on a tone that is used by the second UE to carry a pilot symbol.3. The apparatus of claim 1 , wherein the first set of pilot symbols are transmitted on tones shifted by a cyclic shift from a second set of pilot symbols that is concurrently transmitted by the second UE.4. The apparatus of claim 3 , wherein the processing system is further configured to receive the cyclic shift for staggering the first set of pilot symbols from a base station.5. The apparatus of claim 3 , wherein the cyclic shift for staggering the first set of pilot symbols is randomly selected from a set of cyclic shift values based on an identifier associated with the first UE.6. The apparatus of claim 1 , wherein the first set of data symbols is associated with a same code block.7. A method for wireless communication claim 1 , comprising:mapping, at a first user equipment (UE), a first set of pilot ...

METHOD AND APPARATUS FOR DIRECTED ADAPTIVE CONTROL OF DYNAMIC CHANNEL SELECTION IN WIRELESS NETWORKS

The present invention relates to wireless networks and more specifically to systems and methods for selecting available channels free of radar signals from a plurality of radio frequency channels. In one embodiment, the present invention provides a standalone multi-channel DFS master device and a cloud intelligence device. The standalone multi-channel DFS master device generates spectral information associated with a plurality of communication channels for a device in communication with the standalone multi-channel DFS master device. The cloud intelligence device receives the spectral information via a network device, integrates the spectral information with other spectral information to generate integrated spectral information, and determines a communication channel for the device that is selected from the plurality of communication channels based at least on the integrated spectral information. 1. A system , comprising:a standalone multi-channel dynamic frequency selection (DFS) master device configured to generate spectral information associated with a plurality of 5 GHz communication channels for a device in communication with the standalone multi-channel DFS master device; anda cloud intelligence device configured to receive the spectral information via a network device, integrate the spectral information with other spectral information to generate integrated spectral information, and determine a communication channel for the device that is selected from the plurality of 5 GHz communication channels based at least on the integrated spectral information.2. The system of claim 1 , wherein the cloud intelligence device is further configured to determine the communication channel based on regulation information stored in at least one database.3. The system of claim 1 , wherein the cloud intelligence device is further configured to determine the communication channel based on non-spectral information that includes regulatory information claim 1 , geographical ...

METHOD AND APPARATUS FOR HANDLING FULL-DUPLEX INTERFERENCE

The present invention provides a method and an apparatus for handling full-duplex interference. One method includes: obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs; and determining, according to the interference degree, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource among the at least two UEs. In embodiments of the present invention, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource may be classified according to an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs, thereby preventing the interference problem in the scenario of point-to-multipoint full-duplex communication as much as possible. 1. A method for handling full-duplex interference , the method comprising:obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs; anddetermining, according to the interference degree, a UE allowed to transmit uplink and downlink signals on a same time and frequency resource among the at least two UEs; 'obtaining a degree of mutual interference between uplink and downlink signals of the at least two UEs during full-duplex transmission.', 'wherein obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs comprises2. The method according to claim 1 , wherein obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs further comprises:obtaining a degree of self-interference of a transmit signal on a received signal of the site device during full-duplex transmission.3. The method according to claim 1 , wherein obtaining a degree of mutual interference between uplink and downlink signals of the at least two UEs during full-duplex transmission comprises:obtaining ...

SCHEDULING MULTI-USER MIMO TRANSMISSIONS IN FIXED WIRELESS ACCESS SYSTEMS

Described are devices, systems and methods for scheduling multi-user (MU) multiple input multiple output (MIMO) transmissions in a fixed wireless access (FWA) system. One method for scheduling a large number of user devices in a wireless communication system includes a preselection process to pare down the number of user devices to be simultaneously scheduled, and then scheduling that subset of users. In an example, and assuming each user device communicates over a corresponding wireless channel, the preselection process includes determining a number of sets based on a first characteristic of the wireless channels, where each set includes at least one user device, and then determining a subset of user devices by selecting at most one user device from each of the sets. The scheduling of the selected subset of users is based on a scheduling algorithm and a second characteristic of the wireless channels. 1. A method for scheduling a plurality of user devices in a wireless communication system , each of the plurality of user devices communicating over a corresponding one of a plurality of wireless channels , the method comprising:determining a plurality of sets based on a first characteristic of the plurality of wireless channels, wherein each of the plurality of sets comprises at least one of the plurality of user devices;determining a subset of user devices by selecting at most one user device from each of the plurality of sets; andscheduling simultaneous transmissions by each of the subset of user devices based on a scheduling algorithm and a second characteristic of the plurality of wireless channels.2. The method of claim 1 , wherein the wireless communication system is a fixed wireless access (FWA) system claim 1 , and wherein the first characteristic comprises a time-invariant part of each of the plurality of wireless channels.3. The method of claim 2 , wherein the second characteristic comprises both a time-invariant and a time-varying part of the plurality of ...

INTERFERENCE REDUCTION FOR REFERENCE SYMBOLS IN URLLC/EMBB MULTIPLEXING

Interference for reference symbols in URLLC/eMBB multiplexing may be reduced. URLLC and/or eMBB reference signal (RS) interference may be reduced regardless whether the URLLC and eMBB reference signals and data are multiplexed and superimposed using the same numerology or different numerologies and/or regardless whether the URLLC and eMBB reference signals may be aligned or misaligned (e.g., may or may not use a common resource). An URLLC transmission may preempt an eMBB transmission. For the URLLC and eMBB transmissions using a same numerology, a RS reuse indication may be used. The RS reuse indication may indicate whether a RS in the preempted portion of the eMBB transmission may be reused. A channel estimation function set may be estimated, and channel estimation may be performed using the determined channel estimation function set. The eMBB transmission and the URLLC transmission may be decoded based on the performed channel estimation. 1. A wireless transmit/receive unit (WTRU) that comprises: receive an enhanced mobile band (eMBB) transmission from a network entity;', 'receive an indication associated with the eMBB transmission, the indication comprising a preemption indication and a reference signal (RS) reuse indication, wherein the preemption indication indicates that an ultra-reliable low-latency communication (URLLC) transmission preempts a portion of the eMBB transmission, and the RS reuse indication indicates whether a RS in the preempted portion of the eMBB transmission can be reused;', 'on a condition that the RS reuse indication indicates that the RS in the preempted portion of the eMBB transmission can be reused, determine a channel estimation function set associated with a level of reuse indicated by the RS reuse indication;', 'perform channel estimation using the determined channel estimation function set; and', 'decode the eMBB transmission., 'a processor configured to2. The WTRU of claim 1 , wherein the level of reuse is a first level of reuse ...

Guard symbols (ng) tables generation for co-located iab du/mt resource transition

To configure an IAB node for DU function and MT function resource transitions within an IAB network, the processing circuitry is to detect using allocated resources, a plurality of resource transitions in adjacent slots between transmission or reception of data on a parent backhaul link. The processing circuitry determines based on sub-carrier spacing (SCS) associated with the allocated resources, a guard symbol table with a number of desired guard symbols for each of the plurality of resource transitions. The number of desired guard symbols are for insertion during the transmission or reception of the data on the parent backhaul link to avoid overlapping of the allocated resources for the parent backhaul link and allocated resources for the DU function during the plurality of resource transitions.

RADAR DETECTION

Systems and methods for radar detection in a communication environment are disclosed. The radar detection may comprise, for example: receiving a first signal; identifying the first signal as a potential radar signal; limiting transmission by an apparatus as a result of the identification; receiving a second signal while the transmission by the apparatus is limited; and determining whether at least one of the first signal, the second signal, or a combination thereof is a radar signal. 1. A method of radar detection in a communication environment , comprising:receiving a first signal;identifying the first signal as a potential radar signal;limiting transmission by an apparatus as a result of the identification;receiving a second signal while the transmission by the apparatus is limited; anddetermining whether at least one of the first signal, the second signal, or a combination thereof is a radar signal.2. The method of claim 1 , wherein:the identification of the first signal as a potential radar signal comprises detecting at least one potential radar pulse; andthe determination of whether at least one of the first signal, the second signal, or a combination thereof is a radar signal comprises detecting a radar pulse burst pattern.3. The method of claim 1 , wherein:the identification of the first signal as a potential radar signal comprises a preliminary determination that radar signals are being received; andthe determination of whether at least one of the first signal, the second signal, or a combination thereof is a radar signal comprises a final determination that radar signals are being received.4. The method of claim 1 , wherein the limitation of transmission comprises transmitting a message to the apparatus requesting that the apparatus limit transmission.5. The method of claim 1 , wherein the limitation of transmission comprises at least one of:ceasing scheduling of transmissions for the apparatus;ceasing issuance of grants in response to requests to schedule ...

DYNAMIC CONFIGURATION OF UPLINK (UL) AND DOWNLINK (DL) FRAME RESOURCES FOR A TIME DIVISION DUPLEX (TDD) TRANSMISSION

Technology for a user equipment (UE) operable to perform adaptive time division duplexing (TDD) hybrid automatic repeat request (HARQ)-ACKnowledgement (ACK) reporting is described. The UE can implement an adaptive uplink-downlink (UL-DL) configuration received from an eNodeB. The UE can decode a downlink (DL) HARQ reference configuration received from the base station for a serving cell, wherein the DL HARQ reference configuration is for the implemented adaptive UL-DL configuration. The UE can decode a reference UL-DL configuration received from the base station via a system information block (SIB). The UE can encode HARQ-ACK feedback for transmission on an uplink channel of the serving cell in accordance with the DL HARQ reference configuration. The UE can perform uplink scheduling and the HARQ-ACK feedback based on the reference UL-DL configuration received from the base station via the SIB. 1. At least one non-transitory machine readable storage medium having instructions embodied thereon for performing adaptive time division duplexing (TDD) hybrid automatic repeat request (HARQ)-ACKnowledgement (ACK) reporting from a user equipment (UE) , the instructions when executed by one or more processors at the UE perform the following:implementing, at the UE, an adaptive uplink-downlink (UL-DL) configuration received from a base station;decoding, at the UE, a downlink (DL) HARQ reference configuration received from the base station for a serving cell, wherein the DL HARQ reference configuration is for the implemented adaptive UL-DL configuration;decoding, at the UE, a reference UL-DL configuration received from the base station via a system information block (SIB);encoding, at the UE, HARQ-ACK feedback for transmission on an uplink channel of the serving cell in accordance with the DL HARQ reference configuration; andperforming, at the UE, uplink scheduling and the HARQ-ACK feedback based on the reference UL-DL configuration received from the base station via the SIB.2. ...

METHOD AND APPARATUS FOR MITIGATING INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM

A method for mitigating interference in a wireless communication system includes a first transmission point determining the number of subframes that need to be shifted at a second transmission point using information from the second transmission point for an ABSconfiguration, wherein the ABS configuration is for a UE belonging to a third transmission point. 1. A method for mitigating interference in a wireless communication system , the method comprising:determining, by a first transmission point, the number of subframes that need to be shifted at a second transmission point using information from the second transmission point for an ABS (Almost Blank Subframe) configuration,wherein the ABS configuration is for a UE belonging to a third transmission point.2. The method according to claim 1 , wherein the number of subframes is determined such that the number of subframes that can be set to ABSs by the first transmission point is being maximized in consideration of subframes set to ABSs by the second transmission point.3. The method according to claim 2 , wherein the number of subframes is determined by considering subframes for system information and synchronization signal transmission.4. The method according to scheduling claim 1 , by the first transmission point claim 1 , one or more UEs to subframes corresponding to ABSs set by the second transmission point.5. The method according to claim 1 , wherein the information from the second transmission point includes ABS configuration information of the second transmission point.6. The method according to claim 5 , wherein the ABS configuration information of the second transmission point is transmitted in the form of a bitmap.7. The method according to claim 1 , wherein the information from the second transmission point includes ABS configuration information of the second transmission point and a recommended shift value.8. The method according to claim 7 , wherein the recommended shift value includes at least one of an ...

FREQUENCY SPECTRUM MANAGEMENT DEVICE, ELECTRONIC DEVICE, AND METHOD EXECUTED THEREBY

A frequency spectrum management device includes a processing circuit and is configured so that: a first subsystem manages the frequency spectrum management device, an allocation coefficient between other subsystems and the first subsystem is determined on the basis of the distances from the first subsystem and the other subsystems to a main system, the allocation coefficient expresses the degree of interference of aggregated interference that the other subsystems and the first subsystem produce with respect to the main system; and a frequency spectrum resource is allocated to the first subsystem on the basis of the allocation coefficient. The use of the frequency spectrum management device, the electronic device, and the method executed thereby of the present disclosure increases the degree of rationality of frequency spectrum resource allocation for the subsystems. 1. A frequency spectrum management device , comprising a processing circuit configured to:determine, with respect to a first secondary system managed by the frequency spectrum management device, according to distances from the first secondary system and an other secondary system to a primary system, a distribution coefficient between the other secondary system and the first secondary system, the distribution coefficient representing an interference degree of aggregation interference generated by the other secondary system and the first secondary system against the primary system; anddistribute a frequency spectrum resource for the first secondary system according to the distribution coefficient.2. The frequency spectrum management device according to claim 1 , wherein the processing circuit is configured to distribute non-overlapping frequency spectrum resources for the first secondary system and the other secondary system in a case that the distribution coefficient between the other secondary system and the first secondary system is greater than a specified threshold.3. The frequency spectrum management ...

DYNAMIC SPECTRUM PARTITIONING BETWEEN A FIRST RADIO ACCESS TECHNOLOGY AND A SECOND RADIO ACCESS TECHNOLOGY

An eNodeB uses a first portion of a frequency spectrum as a primary cell and uses a second portion of the frequency spectrum as a secondary cell that is dynamically shared with a 5G base station. The eNodeB and the 5G base station communicate to dynamically share the second portion of the frequency spectrum. 1. A method for a first radio access technology dynamically sharing spectrum with a second radio access technology comprising:a first base station utilizing a first portion of the spectrum as a primary cell during a first time period to communicate with first user equipment in a first area, the first base station using the first radio access technology;the first base station utilizing a second portion of the spectrum as a secondary cell during the first time period, the secondary cell being aggregated with the first portion of the spectrum to communicate in the first area;a second base station utilizing the second portion of the spectrum during a second time period to communicate with second user equipment in the first area, the second base station using the second radio access technology; andthe second base station and first base station communicating regarding availability of the second portion of the spectrum.2. The method as recited in claim 1 ,wherein the second user equipment determines that the second portion of the spectrum is unavailable during the first time period responsive to a detected absence of one or more pilot tones in the second portion of the spectrum in the first time period.3. The method as recited in claim 2 ,wherein the second user equipment performs measurement procedures on the second portion of the spectrum during the second time period; andwherein the second user equipment does not perform measurement procedures on the second portion of the spectrum during the first time period responsive to the detected absence of one or more pilot tones.4. The method as recited in claim 2 , further comprising:the second user equipment periodically ...

Microwave Oven Coexistence with Wi-Fi/BT

A wireless communication device and method for operating the same for mitigating interference in a wireless communication network are provided. Generally, the method includes sensing with the wireless communication device pulses of electromagnetic radiation recurring within a band of frequencies used by the device for communication of signals, identifying the pulses as interference, and determining a number of frequencies of the interference within the band of frequencies used by the wireless communication device. Next, a sensitivity of the wireless communication device is reduced upon sensing one of the pulses and repeated at a frequency corresponding to the frequency of the interference. Thus, a spectrum of electromagnetic radiation around the wireless communication device is perceived by the device as free of interference, enabling it to transmit and/or receive more often. Other embodiments are also disclosed. 120-. (canceled)21. A method of operating a Wi-Fi wireless device , the method comprising:detecting, by the Wi-Fi wireless device, pulses of energy recurring within a band of frequencies used by the Wi-Fi wireless device for communication of signals;identifying, by the Wi-Fi wireless device, the pulses as interference; andusing, by the Wi-Fi wireless device, a time-domain technique to mitigate the interference.22. The method of claim 21 , wherein the Wi-Fi wireless device is a dual-band 2G/5G wireless device.23. The method of claim 22 , wherein:detecting the pulses of energy further comprises using radar detection for Dynamic Frequency Selection (DFS) band operation to determine a frequency and duration of the pulses; andidentifying the pluses as interference comprises matching the frequency and duration of the pulses to a pattern of pulses stored in a memory of the Wi-Fi wireless device.24. The method of claim 21 , wherein the Wi-Fi wireless device comprises a co-located Bluetooth (BT) device.25. The method of claim 24 , further comprising:determining a ...

Reception of overlapping physical downlink shared channel communications

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive an indication of whether a first physical downlink shared channel (PDSCH) communication is to be punctured in a set of resources in which a second PDSCH communication at least partially overlaps with the first PDSCH communication, or both the first PDSCH communication and the second PDSCH communication are to be transmitted in the set of resources. The mobile station may decode the first PDSCH communication based at least in part on the indication. Numerous other aspects are provided.

Method and node for listening

Embodiments of the present invention disclose a method and a node for listening. The method includes: receiving a listening reference signal in a listening pilot time slot; analyzing the listening reference signal received to obtain interference information of a node sending the listening reference signal and/or a resource configuration of a node sending the listening reference signal. By adopting the present invention, the node in the embodiments of the present invention receives the listening reference signal in the listening pilot time slot, and analyzes the received listening reference signal to obtain the interference information of a node sending the listening reference signal and/or the resource configuration of the node sending the listening reference signal, so as to listen to an interference condition and/or a resource configuration of an adjacent node.

SIGNAL TRANSMISSION METHOD AND USER EQUIPMENT, AND SIGNAL RECEPTION METHOD AND BASE STATION

According to the present invention, user equipment performs an HARQ operation for a signal in consideration of the interference experienced by the signal when the signal is received by the user equipment. An apparatus transmitting a signal to the user equipment retransmits the signal in consideration of the interference experienced by the signal when the signal reaches the user equipment on the basis of ACK/NACK information from the user equipment. 1. A method for receiving a signal by a user equipment , the method comprising:decoding a data signal based on a scheduling message for the data signal; andtransmitting acknowledgement (ACK)/negative acknowledgement (HACK) feedback including an ACK/NACK response to the data signal,wherein if the data signal is successfully decoded, the ACK/NACK response is set to a first value indicating successful reception, if the data signal is unsuccessfully decoded and reception quality of the data signal is greater than a reference value, the ACK/NACK response is set to a second value indicating unsuccessful reception, and if the data signal is unsuccessfully decoded and reception quality of the data signal is less than the reference value, the ACK/NACK response is set to a third value indicating detection failure of the data signal or the ACK/NACK response is dropped.2. The method according to claim 1 , further comprisingdiscarding the data signal from a hybrid automatic retransmission request (HARQ) buffer of the user equipment if the data signal is unsuccessfully decoded and reception quality of the data signal is less than the reference value.3. The method according to claim 1 , wherein the data signal is decoded when the scheduling message is successfully decoded.4. The method according to claim 1 , further comprising:receiving another data signal having the same redundancy version as a redundancy version of the data signal if the data signal is unsuccessfully decoded and reception quality of the data signal is less than the ...

System and method for same-channel out-of-band spectrum sensing for command and control (c2) communications to unmanned aircraft systems (uas)

A command and control (C2) radio system configured for same-channel out-of-band sensing is disclosed. In embodiments, the radio system (e.g., an air radio system (ARS) aboard an unmanned aircraft system (UAS) or a ground radio station (GRS)) scans its switching back to the appropriate operating frequency before the next subframe starts. The radio system processes the collected energy samples to determine minimum and mean operating frequencies for idle subframes and slots where a preamble is not detected. The radio system uses idle frames to scan sensing frequencies assigned by a central server of the C2 link system, collecting spectral energy sources during the idle timeslots and energy levels, thereby identifying the level of interference on the assigned frequency (e.g., due to noise or interfering signals) and hypothesizes whether the detected interference is tolerable or precludes current use of the assigned signal in the vicinity of the radio system.

Method and Apparatus for Allocating and Processing Sequences in Communication System

A method and apparatus for allocating and processing sequences in a communication system is disclosed. The method includes: dividing sequences in a sequence group into multiple sub-groups, each sub-group corresponding to its own mode of occupying time frequency resources; selecting sequences from a candidate sequence collection corresponding to each sub-group to form the sequences in the sub-group by: the sequences in a sub-group i in a sequence group k being composed of n sequences in the candidate sequence collection, the n sequences making a |rNcN| or |(rNcN) modu m| function value the smallest, second smallest, till the nsmallest respectively; allocating the sequence group to cells, users or channels. It prevents the sequences highly correlated with the sequences of a specific length from appearing in other sequence groups, thus reducing interference, avoiding the trouble of storing the lists of massive sequence groups. 2. The apparatus of claim 1 , wherein the prime number is the largest prime number smaller than the value of the reference signal sequence length7. The apparatus of claim 1 , wherein Nis 31.9. The apparatus of claim 8 , wherein the prime number is the largest prime number smaller than the value of the reference signal sequence length.10. An apparatus claim 8 , comprising:a processor coupled with a non-transitory storage medium storing executable instructions; wherein the executable instructions, when executed by the processor, cause the terminal device to:{'sub': i', 'i', 'i', '1', 'i', '1, 'obtain a sequence index rbased on a group number k, wherein a value of the sequence index r minimizes |r/N−k/N|, wherein Nis a length of a Zadoff-Chu sequence member in a Zadoff-Chu sequence group, Nis a reference length, the length of the Zadoff-Chu sequence member is a prime number less than a reference signal sequence length, and the group number k is an index of the Zadoff-Chu sequence group;'}{'sub': 'i', 'generate the reference signal sequence according ...

Packet data transmission in a mimo system

A packet data transmission system comprises primary stations (PS) having signal transmitting and receiving means and antennas (PA 1 to PA 4 ) for propagating downlink signals and receiving uplink signals and a plurality of secondary stations (SS) able to roam within the coverage areas of the primary stations. Each secondary station (SS 1 ) has signal transmitting and receiving means, a predetermined number of antennas (SA 1 to SA 4 ), and means for monitoring its radio environment. Information about the radio environment is relayed as an uplink signal to the respective primary station which modifies its mode of transmission of packet data signals. The secondary station in response to the modified mode of transmission of the downlink signals adapts its receiver resources to process the packet data signals and effect cancellation of any interference.

DUAL BAND LTE SMALL CELL

A dual band LTE small cell base station communicates on both licensed bands and unlicensed bands. The small cell base station modifies the communication protocol utilized by the licensed band to enable communication over an unlicensed band. This modification involves replacing the physical (PHY) layer of the licensed band communication protocol with the PHY layer of a to-be-used protocol in an unlicensed band. 1. A wireless communication method , the method comprising:identifying one or more unlicensed channels in one or more unlicensed bands and one or more licensed channels in one or more licensed bands for communication between a small cell base station and a user equipment;measuring a channel condition of at least one of the one or more unlicensed channels, where the measured channel condition of at least one of the one or more unlicensed channels comprises at least one of interference and channel utilization;determining if the measured channel condition is acceptable;if the measured channel condition is acceptable, transmitting from the small cell base station to the user equipment, data channel information on a data channel in the one or more unlicensed bands utilizing an LTE protocol and control channel information on a control channel in the one or more licensed bands utilizing the LTE protocol; andif the measured channel condition is not acceptable, transmitting from the small cell base station to the user equipment, data channel information on a data channel in the one or more licensed bands utilizing the LTE protocol and control channel information on a control channel in the one or more licensed bands utilizing the LTE protocol.2. The method of where measuring a channel condition of at least one of the one or more unlicensed channels comprises:identifying one or more unlicensed channels that are free of interference and not utilized by another device operating in the one or more unlicensed bands; andtransmitting data channel information on the one or ...

PROVIDING DIFFERENT TRANSMIT AND/OR RECEIVE MODES IN DIFFERENT SECTORS OF A WIRELESS BASE STATION

A wireless base station simultaneously transmits or receives wireless communications in different modes in different sectors of the wireless base station. The different modes may comprise a Time Division Duplex (TDD) mode and a non-TDD mode, and/or different air interfaces. Related methods and systems are described. 1. A sectorization method for a wireless base station comprising:transmitting and receiving in a Time Division Duplex (TDD) mode by the wireless base station in a first sector thereof while simultaneously refraining from transmitting and receiving in the TDD mode by the wireless base station in a second sector thereof.2. A method according to further comprising refraining from transmitting and receiving in the TDD mode and in a non-TDD mode by the wireless base station in the second sector thereof.3. A sectorization system for a wireless communications system comprising:a wireless base station that is configured to transmit and receive in a Time Division Duplex (TDD) mode in a first sector thereof while simultaneously refraining from transmitting and receiving in the TDD mode in a second sector thereof.4. A system according to wherein the wireless base station is further configured to refrain from transmitting and receiving in the TDD mode and in a non-TDD mode in the second sector thereof.5. A sectorization method for a wireless base station comprising:simultaneously transmitting or receiving wireless communications in different modes in different sectors of the wireless base station.6. A method according to wherein the different modes comprise a Time Division Duplex (TDD) mode and a non-TDD mode.7. A method according to wherein the different modes comprise different air interfaces.8. A sectorization system for a wireless communications system comprising:a wireless base station that is configured to simultaneously transmit or receive wireless communications in different modes in different sectors thereof.9. A system according to wherein the different ...

Pilot design for universal frequency reuse in cellular orthogonal frequency-division multiplexing systems

Systems and methods are provided for transmitting information between an intended source and a receiver to minimize co-channel interference from at least one interfering source. Pilot subcarriers and data subcarriers may be broadcast from an intended source and at least one interfering source. The pilot subcarriers may be shared across base stations or distributed among base stations in frequency, in time, or both. In addition, the frequency reuse factor of the pilot subcarriers may be different than the frequency reuse factor of the data subcarriers A receiver receives a composite signal that corresponds with an intended signal from an intended source and an interfering signal from at least one interfering source. The portion of the received signal that corresponds to the intended signal may be recovered by the receiver based on the broadcast of the pilot subcarriers.

METHOD AND APPARATUS FOR BANDWIDTH SELECTION FOR RADAR TRANSMISSION

A method for optimizing bandwidth selection of a radar transmission in a frequency bandwidth in which the frequency bandwidth is divided into a plurality of sub-bands having a plurality of different bandwidths. The energy level is measured for each sub-band and a range resolution is also determined for each sub-band. Thereafter, a sub-band is selected in the frequency range where the signal to interference plus noise ratio plus the range resolution is maximum. Thereafter, a radar transmission is transmitted in the selected sub-band with a bandwidth corresponding to the bandwidth of the selected sub-band. 1. A method for optimizing bandwidth selection of a radar transmission in a frequency range comprising the steps of:dividing said frequency range into a plurality of sub-bands, said sub-bands having a plurality of different bandwidths, each sub-band having a center frequency,measuring the signal to interference plus noise ratio level in each of said sub-bands,determining a range resolution for each sub-band,selecting a sub-band in said frequency range where the signal to interference plus noise ratio plus the range resolution is maximum, andthereafter transmitting the radar transmission in said selected sub-band and with a bandwidth corresponding to the bandwidth and center frequency of said selected sub-band.2. The method as defined in wherein said dividing step comprises the steps of:subdividing said frequency bandwidth into a plurality of equal width sub-bands, each sub-band forming a first tier of frequency sub-bands of a first bandwidth,forming subsequent levels of tiers of frequency sub-bands, each sub-band in each subsequent tier having a bandwidth equal to the bandwidth of the sub-bands in the preceding tier times the level of the tier for every combination of contiguous frequency sub-bands in the first tier.3. The method as defined in wherein said measuring step further comprises the step of dividing the signal to interference plus noise ratio by the tier ...

METHOD FOR REMOVING INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR SAME

A method by which a base station supports the removal of an interference signal from a reception signal of a terminal in a wireless communication system, according to one embodiment of the present invention, comprises the steps of receiving, from the terminal, information on capability relating to carrier aggregation (CA); determining a method for removing an interference signal of the terminal, on the basis of information on the capability relating to the CA; and transmitting, to the terminal, the determined interference signal removal method, wherein the information on the capability relating to the CA can include a CA bandwidth class and MIMO capability of the terminal for the respective bands of respective band combinations for the CA. 1. A method for enabling a base station to support cancellation of an interfering signal from a received signal of a user equipment (UE) in a wireless communication system , the method comprising the steps of:receiving, from the UE, information on capability relating to carrier aggregation (CA);determining a cancellation scheme of an interfering signal of the UE, on the basis of the information on capability relating to CA; andtransmitting, to the UE, the determined cancellation scheme of the interfering signal,wherein the information on capability relating to CA includes a CA bandwidth class and MIMO capability of the UE for each band of each band combination for the CA.2. The method according to claim 1 , wherein the cancellation scheme of the interfering signal of the UE is one of a decoding based interference cancellation scheme and a demodulation based interference cancellation scheme.3. The method according to claim 1 , wherein the step of determining a cancellation scheme of an interfering signal of the UE is performed per band of each band combination.4. The method according to claim 3 , wherein the cancellation scheme of the interfering signal of the UE is additionally determined on the basis of the number of codewords ...

LTE Transmission Mask Adjustment to Maximize Performance and Reduce Interference

System and methods for using channel quality reports to reduce inter-band interference are disclosed. Channel information is received at a first wireless communication device from a second wireless communication device. The first wireless device is operating in a first frequency range, and the second wireless device is operating in a second frequency range. The first frequency range is adjacent to the second frequency range. A channel quality report is generated at the first wireless communication device. The channel quality report indicates that particular sub-bands in the first frequency range have low channel quality. The particular sub-bands are selected using the channel information.

DYNAMIC CHANNEL SIZING IN A WIRELESS COMMUNICATION NETWORK

A wireless communication network serves User Equipment (UEs) over Multiple Input Multiple Output (MIMO) layers. A primary access node wirelessly serves the UEs over a primary amount of MIMO layers in a primary radio channel having a primary channel size. A secondary access node wirelessly serves the UEs over a secondary amount of MIMO layers in a secondary radio channel having a secondary channel size. The primary access node selects a new primary channel size and a new secondary channel size based on the primary amount of MIMO layers and the secondary amount of MIMO layers. The primary access node wirelessly serves the UEs over the primary amount of MIMO layers in the primary radio channel having the new primary channel size. The secondary access node wirelessly serves the UEs over the secondary amount of MIMO layers in the secondary radio channel having the new secondary channel size. 1. A method of operating a wireless communication network to serve User Equipment (UEs) over Multiple Input Multiple Output (MIMO) layers , the method comprising:a primary access node wirelessly serving the UEs over a primary amount of the MIMO layers in a primary radio channel having an initial primary channel size;a secondary access node wirelessly serving the UEs over a secondary amount of the MIMO layers in a secondary radio channel having an initial secondary channel size and indicating the secondary amount of the MIMO layers to the primary access node;the primary access node selecting a new primary channel size and selecting a new secondary channel size based on the primary amount of the MIMO layers and the secondary amount of the MIMO layers and indicating the new secondary channel size to the secondary access node;the primary access node wirelessly serving the UEs over the primary amount of the MIMO layers in the primary radio channel having the new primary channel size; andthe secondary access node wirelessly serving the UEs over the secondary amount of the MIMO layers in ...

CONFIGURATION OF COEXISTENCE OF DIFFERENT CP LENGTHS IN D2D COMMUNICATION

The present disclosure discloses a plurality of configuration schemes for coexistence of D2D signals with different CP lengths in D2D communication. In Scheme - a network allocates a specific CP length for some kind of D2D channel of all users in a cell; in Scheme - the network configures a specific CP length for each of D2D channels of each user in the cell; in Scheme - the network configures one CP length for each of D2D subframes; in Schemes - to - the system configures a CP length periodically, in which for N D2D subframes within a configuration periodicity, the network configures one CP length for each of (N−M) (M=1, 2) D2D subframes; while for the remaining M (M=1, 2) D2D subframes, the system multiplexes SC-FDMA/OFDM symbols with different CP lengths in a TDM, a FDM, and a TDM & FDM ways, respectively; and in Scheme - the network configures one CP length for each allocated time-frequency physical resource set. 123-. (canceled)24. A base station , comprising:a configuration unit that configures a CP length for a resource pool for D2D communication; anda transmission unit that transmits a information which indicates the configured CP length.25. A base station , comprising:a configuration unit that configures a CP length for a resource pool for D2D discovery; anda transmission unit that transmits a information which indicates the configured CP length.26. The base station of claim 24 , wherein the configured CP length is transmitted by SIB and/or dedicated RRC signal.27. The base station of claim 25 , wherein the configured CP length is transmitted by SIB and/or dedicated RRC signal.28. The base station of claim 24 , wherein the configured CP length is used for scheduling assignment transmission and/or data transmission.29. A UE claim 24 , comprising:a reception unit that receives a CP length configuration for a resource pool for D2D communication; anda determination unit that determines a CP length for the resource pool based on the received CP length ...

Dynamically configurable wireless device supporting multiple concurrent frequency bands

A wireless device includes multiple RF chains, one or more processing modules, a switching circuit and a processor. The RF chains operate in multiple RF bands, and at least one RF chain is configurable to operate at a RF band selected from the RF bands. The processing modules are configurable to process signals communicated with the RF chains. The switching circuit routes signals between RF chains and processing modules in accordance with a routing plan. In response to an event that warrants reconfiguration, the processor re-allocates resources, including (i) allocating one or more RF chains to respective RF bands, (ii) allocating one or more processing modules to process signals associated with the RF bands, and (iii) setting the routing plan to route signals between pairs of RF chains and processing modules allocated to a common RF band. The processor communicates wirelessly with remote devices in accordance with the operational reconfiguration. 1. A wireless device , comprising:multiple Radio Frequency (RF) chains operating in multiple respective predefined RF bands, wherein at least one RF chain is configurable to operate at a RF band selected from among the multiple predefined RF bands;one or more processing modules configurable to process baseband signals communicated with the multiple RF chains;a switching circuit, configured to route baseband signals between the RF chains and the one or more processing modules, in accordance with a switch routing plan; and in response to an event that warrants an operational reconfiguration of the wireless device, re-allocate resources of the wireless device including (i) allocating one or more of the RF chains to operate at one or more respective RF bands, (ii) allocating one or more of the processing modules to process baseband signals associated respectively with the one or more RF bands, and (iii) setting the switch routing plan to route baseband signals between pairs of RF chains and processing modules that were ...

Working wireless communication channel selection based on spectral estimation

A method for selecting a working wireless communication channel based on spectral estimation includes determining a sub-set of wireless communication channels from a set of wireless communication channels of a working frequency band. A superposition of channel frequency bands of the wireless communication channels in the sub-set covers the working frequency band. The method further includes performing a noise level measurement on each wireless communication channel in the sub-set to obtain a spectral estimation result for each wireless communication channel in the sub-set. The method further includes calculating a spectral density distribution across the working frequency band based on the spectral estimation results of the wireless communication channels in the sub-set. The method further includes selecting, according to the spectral density distribution across the working frequency band, one of the wireless communication channels from the set as the working wireless communication channel.

Information transmission method and device

An information transmission method includes: determining whether in-device interference may occur in user equipment; if so, acquiring transmission configuration information for avoiding the in-device interference, the transmission configuration information including an adjustment parameter for transmission time intervals; transmitting the transmission configuration information to the user equipment; and scheduling an uplink transmission resource and a downlink transmission resource according to the transmission configuration information, such that the user equipment performs transmission of uplink information within an original transmission time interval in such a way that at least the transmission of control information of downlink scheduling is not interfered.

Phased Array Antenna System

A reference signal distribution system is disclosed. The reference signal distribution system can include a power splitter to create, from a frequency-divided reference signal, a counterclockwise divided reference signal and a clockwise divided reference signal. The reference signal distribution system can include a distribution ring to provide the counterclockwise divided reference signal to a ring tap, and provide the clockwise divided reference signal to the ring tap. The reference signal distribution system can include a ring tap to produce a phase synchronization signal based the counterclockwise divided reference signal and the clockwise divided reference signal. The reference signal distribution system can include an analog regenerative frequency divider to produce a common phase reference signal based in part on the phase synchronization signal. 1. A reference signal distribution system , comprising:a power splitter configured to create, from a frequency-divided reference signal, a counterclockwise divided reference signal and a clockwise divided reference signal;at least one ring tap;a distribution ring operable to provide the counterclockwise divided reference signal to the ring tap, and to provide the clockwise divided reference signal to the ring tap, wherein the ring tap is configured to produce a phase synchronization signal based on the counterclockwise divided reference signal and the clockwise divided reference signal; andan analog regenerative frequency divider configured to produce a common phase reference signal based in part on the phase synchronization signal.2. The reference signal distribution system of claim 1 , wherein the analog regenerative frequency divider is further configured to directly or indirectly provide the common phase reference signal to a distributed receiver-exciter (DREX) of the reference signal distribution system.3. The reference signal distribution system of claim 1 , further comprising:a reference signal source ...

METHOD AND APPARATUS FOR SENDING SYNCHRONIZATION SIGNAL IN FBMC SYSTEM

Embodiments of the present disclosure relate to a method and an apparatus for sending a synchronization signal in an FBMC system in the field of communications, and are used for reducing the cost of a synchronization signal and improving the spectral efficiency. The method provided by the embodiments of the present disclosure includes: determining a sending time-frequency resource location of a synchronization symbol; determining a time-frequency resource location having mutual interference with the synchronization symbol; sending the synchronization symbol on the sending time-frequency resource location of the synchronization symbol, and sending a protection symbol on the time-frequency resource location having mutual interference with the synchronization symbol. 1. A method for sending a synchronization signal in a filter bank multicarrier (FBMC) system , comprising:determining a sending time-frequency resource location of a synchronization symbol;determining a time-frequency resource location having mutual interference with the synchronization symbol; andsending the synchronization symbol on the sending time-frequency resource location of the synchronization symbol, and sending a protection symbol on the time-frequency resource location having mutual interference with the synchronization symbol.2. The method according to claim 1 , wherein the sending time-frequency resource location of the synchronization symbol is located on at least one multicarrier symbol of one of a starting position of once continuous signal transmission and an end position of once continuous signal transmission.3. The method according to claim 1 , wherein the determining the time-frequency resource location having mutual interference with the synchronization symbol comprises:utilizing the time-frequency resource location with transmultiplexer response of the synchronization symbol within a preset range as the time-frequency resource location having mutual interference with the ...

MU MIMO BEAMFORMING TRAINING PROTOCOL

In Down Link MU-MIMO, an AP transmits to several STAs concurrently. In the mmWave band, directional transmissions are used so it is necessary for both the AP and the STAs to set their antenna arrays (by setting their antenna weight vectors—AWVs) in the best way to receive the transmissions directed to them by the AP and to avoid interference from transmissions directed to other devices. An exemplary embodiment discloses a beamforming training protocol that is capable of generating a set of antenna weight vectors for MU-MIMO operation that at least improves performance of subsequent communications. 1. A wireless communications device comprising:a transmitter in communication with a processor to determine and transmit a grant frame to one or more stations;a training field determiner that assembles one or more training fields;a sector sweeper adapted to communicate with the transmitter and assemble and transmit a sector sweep frame with one or more of the assembled training fields; anda beamforming trainer that receives feedback information from the one or more stations and modifies one or more antenna+sector station pairs at least based on the feedback information.2. The wireless communications device of claim 1 , wherein the processor further determines a signal to noise plus interference ratio.3. The wireless communications device of claim 1 , wherein the training field determiner and transmitter further assemble and transmit a BRP (Beam Refinement Protocol) frame having one or more training fields.4. The wireless communications device of claim 3 , wherein the one or more training fields are transmitted in n groups of p training length.5. The wireless communications device of claim 4 , wherein each group is transmitted by the transmitter using an antenna and a sector that are specific for a specific station.6. The wireless communications device of claim 5 , wherein the antenna and the sector are optimized for the specific station.7. The wireless communications ...

System and method for constrained peak cancellation

Embodiments include a method, computer program product, and system for utilizing a system for peak cancellation for a received Orthogonal Frequency Division Multiplexing (OFDM) symbol to reduce the peak-to-average power ratio (PAPR). The system detects M sets of clipping noise samples of the symbol where each set includes one of the M highest clipping noise peaks of the symbol, determines cancellation pulses that correspond to the highest clipping noise peaks of the M sets in the time domain, and subtracts the cancellation pulses from the corresponding highest clipping noise peak samples to reduce the PAPR. The cancellation pulses are determined at least in part from the center-of-mass of each set of the clipping noise samples, the phase of some samples of each set, and the in-band energy limitation associated with the OFDM symbol.

REFERENCE SIGNAL SEQUENCE GENERATION

Methods, systems, and devices for wireless communications are described. A first wireless device may identify a reference signal sequence (e.g., a demodulation reference signal (DMRS) sequence) based on a cyclic shift associated with a control channel for communications with a second wireless device. For example, the first wireless device may identify the cyclic shift associated with transmitting a message to the second wireless device via the control channel. In another example, the first wireless device may estimate the cyclic shift associated with receiving a message from the second wireless device via the control channel. The first wireless device may then communicate with the second wireless device based on the reference signal sequence. For example, the first wireless device may transmit or receive (e.g., via a shared channel) the reference signal sequence to or from the second wireless device.

Repetition configuration for remote interference management-reference signal (rim-rs) transmissions

A network element for configuring a Remote Interference Monitoring Reference Signal (RIM-RS) is disclosed. The network element transmits RIM-RS resource configuration and Information of Things (IoT) measurement and reporting configuration information to a base station. The base station conducts the IoT measurement and ducting phenomenon detection according to the received configuration, and transmits the results to the network element. The base station determines the number of repetition and/or near-far indication based on the received information and transmits the number of repetition and near-far indication to the base station. The base station then transmits the RIM-RS according to the received repetition and near-far indication.

METHOD AND APPARATUS FOR TRANSMITTING SIGNAL IN A WIRELESS COMMUNICATION SYSTEM

A method for transmitting a signal by a Device-to-Device (D2D) User Equipment (UE) in a wireless communication system includes mapping block of complex-valued symbols to Physical Resource Blocks (PRBs) based on a subband based-frequency hopping related to an uplink frequency hopping; generating a Single Carrier Frequency Division Multiple Access (SC-FDMA) signal; and transmitting the SC-FDMA signal. Further, a slot index for the subband based-frequency hopping is re-indexed based on subframe indexes re-indexed within a D2D resource pool based on the block of complex valued symbols for a D2D communication signal. 1. A method for transmitting a signal by a Device-to-Device (D2D) User Equipment (UE) in a wireless communication system , the method comprising:mapping block of complex-valued symbols to Physical Resource Blocks (PRBs) based on a subband based-frequency hopping related to an uplink frequency hopping;generating a Single Carrier Frequency Division Multiple Access (SC-FDMA) signal; andtransmitting the SC-FDMA signal,wherein a slot index for the subband based-frequency hopping is re-indexed based on subframe indexes re-indexed within a D2D resource pool based on the block of complex valued symbols for a D2D communication signal.2. The method according to claim 1 , wherein the slot index of the D2D resource pool is produced by re-indexing only subframes included in the D2D resource pool.3. The method according to claim 1 , wherein the D2D resource pool is configured for transmission of a D2D communication signal.4. The method according to claim 1 , wherein a transmission mode 2 is configured for the D2D UE.5. The method according to claim 1 , wherein a type of the uplink frequency hopping is changed according to a transmission mode configured for the D2D UE.6. The method according to claim 5 , wherein when the subband based-frequency hopping is used during the mapping claim 5 , a size of the subband is fixed to 1 and a cell Identifier (ID) is a predetermined ID. ...

INGRESS DETECTION

An assessment tool for assessing signaling ingress and small cell placement within a communication network is contemplated. The assessment tool may include capability sufficient for assessing signaling ingress associated with radio frequency (RF) signaling attenuating, influencing or otherwise interfering with other signaling being transmitted over a communication network. 1. A method for assessing ingress in a communication network comprising:collecting signal-to-noise ratio (SNR) values for a plurality of subcarriers in use over the communication network;processing the SNR values to generate a threshold for assessing interference; anddetermining each of the plurality of subcarriers to be one of interfered or non-interfered as result of ingress depending on whether the SNR values associated therewith exceeds the threshold.2. The method of further comprising implementing an ingress process to facilitate determining the threshold claim 1 , the ingress process including a removal process for removing the SNR values less than a predefined value from use in generating the threshold.3. The method of further comprising implementing the ingress process to include a sorting process claim 2 , the sorting process removing a top and bottom portion of the SNR values remaining after the removal process from use in generating the threshold.4. The method of further comprising implementing the ingress process to include an averaging process claim 3 , the averaging process determining an average SNR value for each of the plurality of subcarriers from the SNR values remaining after the sorting process.5. The method of further comprising implementing the ingress process to include a probability process claim 4 , the probability process generating the threshold by applying a false-alarm value to the average SNR values.6. The method of further comprising generating a list sufficient to categorize each of the plurality of subcarriers as one of interfered and non-interfered.7. The method ...

METHOD AND DEVICE FOR PROVIDING DIFFERENT SERVICES IN MOBILE COMMUNICATION SYSTEM

The present disclosure relates to a method and device for providing different services in a mobile communication system. In an embodiment, a base station sets interference influence information including information about interference of a second signal of a second system using a second TTI with regard to a first signal of a first system using a first transmission time interval (TTI). Also, the base station transmits the first signal of the first system to a terminal, and transmits the interference influence information to the terminal in a predetermined time. In a situation where different services coexist, an HARQ retransmission technique is provided for effectively overcoming a transmission failure caused by influence of interference between services. 1. A method performed by a base station in a wireless communication system , the method comprising:transmitting, to a terminal, a first data;transmitting, to the terminal, first information indicating whether second data being transmitted is combinable with the transmitted first data; andtransmitting, to the terminal, the second data based on the first information,wherein at least one of the first data and the second data is transmitted based on a code block group (CBG).2. The method of claim 1 , wherein the transmitting the first information comprises:receiving, from the terminal, a negative acknowledgment message for the first data; andtransmitting, to the terminal, the first information indicating whether the second data being transmitted is combinable with the transmitted first data, and scheduling information for transmitting the second data.3. The method of claim 1 , further comprising:transmitting, to the terminal, second information including resource information where no transmission is intended for the terminal.4. The method of claim 1 , wherein the first information is included in downlink control information (DCI).5. A method performed by a terminal in a wireless communication system claim 1 , the method ...

Uplink control information reporting

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to communicate with a base station on different channels or messages with different processing timelines. In order to prevent a collision between processing communications associated with the different length TTIs, the UE may drop one or more communications on corresponding channels with longer processing timelines to receive and/or process the transmission on the channel with a shorter processing timeline. Additionally, the UE may transmit uplink control information (UCI) for the one or more dropped communications, where the UCI may include hybrid access request (HARQ) acknowledgement/negative acknowledgement (ACK/NAK) feedback, channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), etc. If a downlink transmission is dropped, the UE may transmit a NAK message. Alternatively, if an uplink transmission is dropped, the UE may transmit at least a portion of the UCI.

Method and apparatus for reporting periodic channel state information in mobile communication system using massive array antennas

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure proposes a method and an apparatus for determining channel state information (CSI) to be reported according to a plurality of channel state reporting priority if periodic channel state information reporting collide with each other, and reporting the channel state information.

Grant-free transmission method, user equipment and base station

The present disclosure provides a grant-free transmission method, a user equipment, and a base station. The grant-free transmission method at a user equipment side includes: step a, sending a first multiple access signature selected by a user equipment to a base station; step b, receiving an intervention result of the base station for the user equipment; step c, determining, when the intervention result is to adopt the first multiple access signature, to adopt the first multiple access signature for data transmission; and step d, determining, when the intervention result is to adopt a second multiple access signature, to adopt the second multiple access signature for the data transmission. According to the grant-free transmission method, the user equipment, and the base station provided by the present disclosure, the collision during the grant-free transmission is avoided or reduced with less signaling overhead.

Processing method and device

A processing method and a processing device are provided. The processing method includes determining, by a first device, a base station set ID and/or a configuration of an RIM-RS resource, and the first device is an aggressor base station or a victim base station.

Methods, network node, wireless device, computer programs and computer program products for assisting downlink interference estimation

It is presented a method for assisting downlink interference estimation in a cellular network. The method is performed in a network node of the cellular network and comprises the steps of: estimating an average transmit power of the network node in a future time period; transmitting a power parameter based on the estimated average transmit power to at least one wireless device being served by the network node; and transmitting a reference signal for downlink interference estimation. A corresponding network node, wireless device, computer programs and computer program products are also presented.

ESTIMATION OF SPUR PARAMETERS IN WIRELESS COMMUNICATIONS

Aspects of the present disclosure provide for an apparatus configured to receive a communication signal including a spur utilizing a communication interface. The apparatus determines a first estimated frequency of the spur and a first estimated duration of the spur based on the first estimated frequency utilizing a searching algorithm. The apparatus determines a second estimated frequency of the spur based on the first estimated duration utilizing the searching algorithm, and a second estimated duration of the spur based on the second estimated frequency utilizing the searching algorithm. The apparatus determines at least one of an amplitude, a start location, or a phase offset of the spur based on the second estimated frequency and the second estimated duration. 1. A method of determining spur parameters in a communication signal , comprising:receiving a communication signal comprising a spur utilizing a communication interface;determining a first estimated frequency of the spur;determining a first estimated duration of the spur based on the first estimated frequency utilizing a searching algorithm;determining a second estimated frequency of the spur based on the first estimated duration utilizing the searching algorithm;determining a second estimated duration of the spur based on the second estimated frequency utilizing the searching algorithm; anddetermining at least one of an amplitude, a start location, or a phase offset of the spur based on the second estimated frequency and the second estimated duration.2. The method of claim 1 , wherein the searching algorithm comprises a cost function with a frequency variable and a duration variable.3. The method of claim 2 , wherein the determining the first estimated duration comprises determining a minimum value of the cost function while setting the frequency variable equal to the first estimated frequency of the spur.4. The method of claim 2 , wherein the determining the second estimated frequency of the spur ...

METHOD AND APPARATUS FOR COEXISTANCE OF DEVICE-TO-DEVICE COMMUNICATIONS AND CELLULAR COMMUNICATIONS IN MOBILE COMMUNICATIONS SYSTEM

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a method and an apparatus for coexistence of device-to-device communications and cellular communications in a mobile communications system. 1. A method performed by a terminal in a communication system , the method comprising:receiving, from a base station, configuration information for a channel state information reference signal (CSI-RS), the configuration information including information on a number of CSI-RS antenna ports, a type of code division multiplexing (CDM), and a plurality of CSI-RS configurations;receiving, from the base station, the CSI-RS based on the configuration information for the CSI-RS;obtaining channel state information (CSI) based on the received CSI-RS; andtransmitting, to the base station, the CSI,wherein in case that the type of CDM indicates CDM-8, the CSI-RS is based on a plurality of CDM-8 patterns which include 8 resource elements (REs), respectively.2. The method of claim 1 , wherein a CDM-8 patterns includes REs from the plurality of CSI-RS configurations.3. The method of claim 1 , wherein 8 REs of a CDM-8 pattern includes 4 sets of 2 REs claim 1 , andwherein 4 sets are allocated to different subcarriers and orthogonal frequency division multiplexing (OFDM) symbols.4. The method of claim 1 , wherein 8 REs of a CDM-8 pattern includes 2 sets of 4 REs claim 1 , andwherein 4 REs are adjacent in time and frequency axis.6. A method performed by a base station in a communication system ...

Noise tracking within transmission time intervals in wireless communications

Methods, systems, and devices for wireless communications are described that support noise tracking within transmission time intervals (TTIs) in wireless communications. A transmitting user equipment (UE) in direct communications with a receiving UE may transmit one or more reference signals that allow the receiving UE to estimate noise during different portions of a TTI and compensate for varying noise levels within the TTI. The transmitting UE may identify different sets of symbols within the TTI that are expected to have different noise levels, and may transmit one or more reference signals that allow for noise estimation at the receiving UE for each of the different sets of symbols.

METHOD AND INFORMATION EXCHANGE MECHANISM FOR FULL DUPLEX TRANSMISSION

According to an aspect, a method comprises detecting a need to change a duplex mode in a first network node from half duplex to full duplex, determining relevant neighboring network nodes of the first network node, determining duplex pairing information of the first network node, wherein the duplex pairing information of the first network node comprises duplex information of the relevant neighboring network nodes, the duplex information comprising at least information on a current duplex mode of a corresponding neighboring network node, using the duplex pairing information to determine duplex modes of the relevant neighboring network nodes, if all the relevant neighboring network nodes operate in half duplex mode, causing changing the duplex mode of the first net-work node to full duplex; and in response to the causing changing the duplex mode, causing updating information on a current duplex mode of the first net-work node. 1. A method comprising:detecting a need to change a duplex mode in a first network node from a half duplex mode to a full duplex mode;determining one or more relevant neighboring network nodes of the first network node;determining duplex pairing information of the first network node, wherein the duplex pairing information of the first network node comprises duplex information of the one or more relevant neighboring network nodes, the duplex information comprising at least information on a current duplex mode of a corresponding neighboring network node;using the duplex pairing information of the first network node to determine duplex modes of the one or more relevant neighboring network nodes;if all of the one or more relevant neighboring network nodes of the first network node operate in the half duplex mode, causing changing the duplex mode of the first network node to the full duplex mode; andin response to the causing changing the duplex mode, causing updating information on a current duplex mode of the first network node.2. A method ...

Method and apparatus for enhancing cell-edge user performance and signaling radio link failure conditions via downlink cooperative component carriers

A wireless transmit/receive unit (WTRU) receives first timing advances and first power control commands from a first eNodeB and second timing advances and second power control commands from a second eNodeB and transmits, to the first eNodeB, a first physical uplink control channel using a first uplink component carrier. The first physical uplink control channel has a first timing adjusted by the first timing advances but not by the second timing advances and a first power level adjusted by the first power control commands but not by the second power control commands. The WTRU transmits a second physical uplink control channel using a second uplink component carrier. The second physical uplink control channel has a second timing adjusted by the second timing advances but not by the first timing advances and a second power level adjusted by the second power control commands but not by the first power control commands.

LTE TRANSMISSION MASK ADJUSTMENT TO MAXIMIZE PERFORMANCE AND REDUCE INTERFERENCE

System and methods for using channel quality reports to reduce inter-band interference are disclosed. Channel information is received at a first wireless communication device from a second wireless communication device. The first wireless device is operating in a first frequency range, and the second wireless device is operating in a second frequency range. The first frequency range is adjacent to the second frequency range. A channel quality report is generated at the first wireless communication device. The channel quality report indicates that particular sub-bands in the first frequency range have low channel quality. The particular sub-bands are selected using the channel information. 1. A method , comprising:receiving, at a first wireless communication device operating in a first frequency range, channel information from a second wireless communication device operating in a second frequency range, wherein the first frequency range is adjacent to the second frequency range; andgenerating a channel quality report at the first wireless communication device, the channel quality report indicating that particular sub-bands in the first frequency range have low channel quality, wherein the particular sub-bands are selected using the channel information.2. The method of claim 1 , wherein the channel information comprises an operating channel assigned to the second wireless communication device.3. The method of claim 2 , wherein the particular sub-bands are selected because transmissions in the sub-bands would degrade communications in the operating channel.4. The method of claim 1 , wherein the particular sub-bands are selected because transmissions in the sub-bands would cause interference in the operating channel.5. The method of claim 1 , wherein the first wireless communication device is a Long Term Evolution (LTE) user equipment (UE) claim 1 , and the second wireless communication device operates in an Industrial claim 1 , Scientific and Medical (ISM) frequency ...

METHODS AND ARRANGEMENTS FOR AN ACKNOWLEDGEMENT IN WIRELESS NETWORKS

Embodiments may comprise physical layer logic to implement a new, short acknowledgement. Embodiments may store the short acknowledgement on a machine-accessible medium. Some embodiments may determine and transmit a communication with the short acknowledgement. Further embodiments may receive and detect communications with the short acknowledgement. The short acknowledgement may reduce power consumption and reduce on-the-air time. 1. A method comprising:receiving, by an acknowledgement determiner, an indication to transmit a short acknowledgement;determining, by the acknowledgement determiner, the short acknowledgment, wherein the short acknowledgement comprises a truncated packet with a repeating pattern of symbols, the repeating pattern of symbols comprising at least one phase shift between symbols of the repeating pattern of symbols to identify the truncated packet as the short acknowledgement; andtransmitting, by the acknowledgement determiner, the short acknowledgement to an antenna for transmission.2. (canceled)3. The method of claim 1 , wherein determining claim 1 , by the acknowledgement determiner claim 1 , the short acknowledgement comprises selecting the truncated packet to transmit.4. The method of claim 3 , wherein selecting the truncated packet to transmit comprises selecting the truncated packet claim 3 , wherein the truncated packet comprises a pattern of phase shifts between the symbols indicative of an association identification.5. The method of claim 3 , wherein selecting the truncated packet to transmit comprises selecting the truncated packet claim 3 , wherein the truncated packet comprises a pattern of phase shifts between symbols of a short training sequence.6. The method of claim 3 , wherein selecting the truncated packet to transmit comprises selecting the truncated packet claim 3 , wherein the truncated packet comprises a phase shift between symbols of a long training sequence.7. The method of claim 1 , wherein determining claim 1 , by the ...

Method and Apparatus for Multi-Radio Coexistence on Adjacent Frequency Bands

Various methods for controlling an aggressor user equipment (UE) can use two transmission power control loops to mitigate UE-to-UE adjacent carrier frequency band interference to a geographically proximal victim UE. The aggressor UE can select between different transmission power parameters based on two (or more) power values. The usage of any particular power value depends on the time period of the transmission. For example, if a proximal victim UE is scheduled to receive when the aggressor UE is scheduled to transmit, a lower power value may be selected as instructed by a co-scheduler or determined by the aggressor UE. The aggressor UE can also send dual power headroom reports to its serving base station based on the two power values.