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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 45019. Отображено 100.

12-01-2012 дата публикации

Approach for Enabling Coexistence for Radio Technologies

Номер: US20120008704A1

Автор: Abhay Karandikar, Punit Rathod, Siddharth Shetty

Принадлежит: TTSL IITB Center for Excellence in Telecom (TICET)

Embodiments disclosed herein relate to wireless communications, and more particularly to reducing interference in wireless communications. The principal object of this invention is to co-ordinate between two or more communication radios, present within the same device or a plurality of devices present close to each other, without interfering with other non-interfering devices. Embodiments disclosed herein disclose a scheme for reducing interference between any licensed and/or unlicensed radio.

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Номер записи: 1

26-01-2012 дата публикации

Method and System for Time Synchronization of WiMAX and LTE-TDD Networks

Номер: US20120020256A1

Автор: Djordje Tujkovic, Louay Jalloul, Paulraj Arogyaswami

Принадлежит: Broadcom Corp

Embodiments of a method and system for supporting co-existence of first and second cellular networks in adjacent channels in the same geographical area are provided. The method and system synchronize the two cellular networks such that their respective uplink transmissions are aligned in time and their respective downlink transmissions are aligned in time. Such synchronization prevents (or substantially prevents) the uplink transmissions from one of the two cellular networks from overlapping with the downlink transmissions of the other cellular network, and vice versa, thereby mitigating interference between the two networks.

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Номер записи: 2

26-01-2012 дата публикации

Method and tooling for configuring a network of unattended ground wireless sensors

Номер: US20120022831A1

Автор: GianLuigi Ferrari, Jeremie Leguay, Mario Lopez-Ramos, Paolo Medagliani, Vincent Gay

Принадлежит: Thales SA

The method for configuring a network of deposited wireless sensors. In certain aspects, these methods include defining performance criteria forming constraints, with associated threshold values, and at least one performance criterion to be optimized, for at least one zone to be equipped with nodes, each performance criterion being defined by a model; defining for said or each zone; the allocation to said or each zone to be equipped, a number of nodes; applying an optimization process per zone on said or each zone; increasing the number of nodes or modifying the performance criteria defined in said or each zone where the performance criteria are not met and reproducing in these zones the optimization process per zone with the new number of nodes or the new performance criteria, and applying the configuration determined at each node in said or each zone.

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Номер записи: 3

09-02-2012 дата публикации

Downlink inter-cell interference coordination method and enb

Номер: US20120033570A1

Автор: Chunfeng Yao, Dengkun Xiao, Jian Huang, Yaojun Wang, Yuan He

Принадлежит: Huawei Technologies Co Ltd

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.

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Номер записи: 4

09-02-2012 дата публикации

Communication devices, method for data communication, and computer program product

Номер: US20120033621A1

Автор: Markus Dominik Mueck

Принадлежит: INFINEON TECHNOLOGIES AG

A communication device is described comprising a transceiver, a determining circuit configured to determine whether the communication device may use radio resources, which are allocated to be used by a wireless bidirectional communication system in the geographical region in which the communication device is located, for radio data communication without participation by the wireless bidirectional communication system, and a controller configured to control the transceiver to carry out radio data communication using the radio resources if the communication device may use the radio resources.

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Номер записи: 5

09-02-2012 дата публикации

Method and system for achieving enhanced quality and higher throughput for collocated IEEE 802.11B/G and bluetooth devices in coexistent operation

Номер: US20120034870A9

Автор: Brima Ibrahim, Prasanna Desai

Принадлежит: Broadcom Corp

A method and system for achieving enhanced quality and higher throughput for collocated IEEE 802.11b/g and Bluetooth (BT) devices in coexistent operation are provided. A priority signal may be generated by a BT radio in a coexistence station to disable WLAN transmissions in a WLAN radio when a BT HV3 frame is available for transmission. When the priority signal is asserted, an exponentially growing retransmission backoff mechanism in the WLAN radio may be disabled. Moreover, when the BT radio and the WLAN radio are enabled for coexistence operation, a WLAN fragmentation threshold in the WLAN radio may be modified based on a WLAN modulation rate and the BT HV3 frame duration.

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Номер записи: 6

01-03-2012 дата публикации

Decision directed antenna diversity in radio frequency receivers

Номер: US20120052827A1

Автор: Ahmed K. Sadek, Raamkumar Balamurthi

Принадлежит: Qualcomm Inc

A white space sensing method includes receiving a signal on each of multiple antennas in an alternating fashion. The method also includes calculating feature metrics for incumbent signals on a given frequency channel for all antennas (e.g., pilot strength, luminance carrier strength (for NTSC)). The strongest of the antennas can be selected, based on the calculated feature metrics, for white space sensing.

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Номер записи: 7

15-03-2012 дата публикации

Methods and apparatus for best-effort radio backhaul among cells on unlicensed or shared spectrum

Номер: US20120063383A1

Автор: Alan Barbieri, Naga Bhushan, Peter Gaal

Принадлежит: Qualcomm Inc

Methods and apparatus for wireless communication are described. A first base station may provide first backhaul information using a shared channel to a second base station. The shared channel may be white space channels, Authorized Shared Multiuser (ASM) channels or an Instrumentation, Scientific, and Measurement (ISM) channels. The first base station may further provide second backhaul information using a legacy backhaul channel.

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Номер записи: 8

15-03-2012 дата публикации

Network Coexistence through Active Superframe Interleaving

Номер: US20120063395A1

Автор: Jin-Meng Ho

Принадлежит: Texas Instruments Inc

Embodiments of the invention provide coexistence among independent networks through active superframe interleaving. Network hubs and devices exchange signals over a selected channel only during active superframes of their network. Network hubs broadcast coexistence information during their active superframes. A hub of network B desiring to use the selected channel first attempts to fit its active superframes within network A's inactive superframes, if available. If network A is not providing inactive superframes, then the network B hub determines whether network A is willing to coexist using active superframe interleaving on the channel. If so, the network B hub sends an interleave request message to the network A hub, which may accept the message and send back an interleave response message. The network A hub then offers new inactive superframes, and the network B hub adapts the transmissions and receptions of network B to fit within these inactive superframes.

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Номер записи: 9

15-03-2012 дата публикации

Method and apparatus for transmitting available radio access possibilities in a communications area

Номер: US20120064930A1

Автор: Jonas Kronander, Yngve SELÉN

Принадлежит: Telefonaktiebolaget LM Ericsson AB

A local radio access information transmitter for use in a communications area serviced by multiple different radio access technologies (RATs) allocated to different radio resources in different locations in the communications area. Each RAT is associated with one or more RAT radio transceivers for serving user equipments (UEs) at least in some portion of the communications area using one of the multiple RATs. The local radio access information transmitter is in addition to the RAT radio transceivers and located near an associated hotspot service area at least partly inside the communications area. The local radio access information transmitter determines local radio access information including one or more different RATs available for UE service in the hotspot service area and a frequency of frequencies of operation allocated to each RAT in the hotspot service area, sends a registration message to a wide area radio access information controller, and based on a response from the wide area radio access information controller, determines what radio resources to use to transmit the local radio access information signals. Radio transmission circuitry transmits the local radio access information signals for receipt by UEs in the hotspot service area using the determined radio resources.

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Номер записи: 10

22-03-2012 дата публикации

Methods of co-existence for wideband transmissions

Номер: US20120069746A1

Автор: Minyoung Park

Принадлежит: Intel Corp

Embodiments of systems and methods for providing wideband transmission co-existence are generally described herein. Other embodiments may be described and claimed.

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Номер записи: 11

22-03-2012 дата публикации

Method and system for the spectrum manager operation in cognitive radio systems

Номер: US20120071189A1

Автор: Apurva N. Mody

Принадлежит: BAE Systems Information and Electronic Systems Integration Inc

A system and method for the operation of a Spectrum Manager (SM) within a cognitive radio system includes two primary states of operation: SM at network initialization and SM at network operation. While in the network Initialization state, the SM's primary responsibility is to find an operating channel. After an operating channel is found, the SM moves from the network initialization state to the network operation state while executing a procedure to establish a network. While in the network operation state, the SM can execute other procedures, a procedure to update list of available channel from the incumbent database of channel and frequency data, a procedure to determine a signal type, a procedure to enter co-existence mode, deciding when to move to a backup channel and issuing calls for the same as well as background procedures such as looking for better backup channels when the SM is otherwise idle.

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Номер записи: 12

29-03-2012 дата публикации

Radio Resource Management In Mobile Communication Network Employing Private Base Stations

Номер: US20120077508A1

Автор: Matti Latva-Aho, Mohammad Enam Ur Rahman Khan

Принадлежит: NOKIA SIEMENS NETWORKS OY

There is provided a solution for reusing radio resources opportunistically by private base stations to increase the overall capacity of the network. The solution is based on applying an uplink broadcast in a mobile communication, in which information representing a radio resource allocated by a base station to a user terminal is broadcasted.

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Номер записи: 13

29-03-2012 дата публикации

Autonomous unlicensed band reuse in mixed cellular and device-to-device network

Номер: US20120077510A1

Автор: Qianxi Lu, Tao Chen

Принадлежит: Nokia Oyj

Methods, apparatuses, a system and computer program products are provided for autonomously reusing an unlicensed band in a hybrid cellular and device-to-device network. In accordance with an embodiment of the invention, an apparatus receives a request for resources from a terminal, and identifies available resources on an unlicensed band based on the request. The apparatus further reserves the identified available resources for use by the terminal, and transmits a reservation response to the terminal, wherein the reservation response comprises information relating to the reserved available resources. Further, the apparatus transmits data to the terminal over a licensed band and the available resources reserved on the unlicensed band.

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Номер записи: 14

12-04-2012 дата публикации

Apparatus and method for supporting coverage expansion of compact cell in heterogeneous network system

Номер: US20120087247A1

Автор: Chan-Ho Min, Jong-Hyung Kwun

Принадлежит: SAMSUNG ELECTRONICS CO LTD

An apparatus and method of operating a compact base station for supporting coverage area expansion of a compact cell in a heterogeneous network system are provided. The method includes determining whether an overload takes place in a coverage area where a compact base station and a plurality of terminals communicate using a first Frequency Assignment (FA) in a compact cell, determining whether resources are redistributable using a second FA in a coverage area expanded according to coverage area expansion of the compact cell, and when the resources are redistributable using the second FA in the coverage area expanded according to the coverage area expansion of the compact cell, changing the FA of at least one of the plurality of terminals communicating with the compact base station using the first FA in the compact cell, from the first FA to the second FA.

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Номер записи: 15

12-04-2012 дата публикации

Heterogeneous network (hetnet) user equipment (ue) radio resource management (rrm) measurements

Номер: US20120088516A1

Автор: Aleksandar Damnjanovic, Durga Prasad Malladi, Osok Song, Peter Gaal, Tao Luo, Tingfang JI

Принадлежит: Qualcomm Inc

Methods and apparatus for performing radio resource management (RRM) measurements in a heterogeneous network (HetNet) are provided in an effort to prevent failure of RRM measurement procedures in a dominant interference scenario. Several alternatives are provided for determining particular resources (e.g., subframes) to use for performing the RRM measurements, wherein the particular resources are based on cooperative resource partitioning between cells of the HetNet, wherein the cells may be of different types (e.g., macro, pico, or femto cells). These alternatives include, for example: (1) intra-frequency or intra-RAT (radio access technology) alternatives, which may involve transmitting resource partitioning information (RPI) in or deriving non-serving cell RPI based on the serving cell's RPI, as well as (2) inter-frequency or inter-RAT alternatives, where the RRM measurements may be performed during a measurement gap.

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Номер записи: 16

19-04-2012 дата публикации

Adaptive capacity and quality improvements in cellular radio services by the removal of strong interference sources

Номер: US20120094655A1

Автор: Dan Shklarsky

Принадлежит: Individual

A method for increasing capacity or capacity of a cellular radiotelephone system, in which one cell is a member of more than one reuse group ( 42, 45 ). The potential interference risk due to each calling subscriber is assessed ( 43, 46 ). The subscriber is assigned to an appropriate reuse group in which he will not be an interferer ( 44, 47, 48, 49, 50 ). The method may alternatively be used for the improvement of quality of service ( 44, 48, 50 ), i.e., providing reduced probability of interference.

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Номер записи: 17

26-04-2012 дата публикации

Method and system for obtaining a deployment scheme of wireless local area network access points

Номер: US20120099481A1

Автор: Guanbo Hou, Mingjie Dong, Shen Hu, Shoubao Yang, Wei Zhang, YUAN Zhou, Yun Hu

Принадлежит: Huawei Technologies Co Ltd

A method for obtaining a deployment scheme of Wireless Local Area Network (WLAN) Access Points (APs) is provided. The method includes obtaining coverage information of each AP according to a WLAN competition model and deployment information; and combining a constraint relationship between the coverage information of each AP and cost information of each AP, and obtaining the deployment scheme of the APs through calculation. A device and a system are further provided, so as to automatically obtain a deployment scheme of APs, and control the cost.

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Номер записи: 18

03-05-2012 дата публикации

Method and apparatus for radio coexistence

Номер: US20120106461A1

Автор: Jari Junell, Juha Salokannel, Mika Kasslin, Päivi M. RUUSKA

Принадлежит: Nokia Oyj

In a non-limiting and exemplary embodiment, a method is provided for radio coexistence, comprising: sending, by a first radio coexistence enabler associated with a first device operating in a network mastered by a second device comprising a second radio coexistence enabler of a master type, a request to a radio coexistence manager, the request indicating that the first radio coexistence enabler is of a client type, receiving information on at least one of locally available radio resources, candidate devices for device-to-device connections, and further one or more nearby access networks from the radio coexistence manager, and causing establishment of a connection by the first device to a third device on the basis of the received information without control of the second device.

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Номер записи: 19

03-05-2012 дата публикации

Communication Network and Method

Номер: US20120108283A1

Автор: Klaus Ingemann Pedersen, Luis Garcia

Принадлежит: NOKIA SIEMENS NETWORKS OY

In a communication network including a plurality of base stations, a method including the steps of: sending a signal from said base station indicating that it will enter a period of inactivity, to at least one other base station; storing at that least one current parameter(s) relating to interference between base stations and/or updating said parameter(s) for forward use. The parameter(s) may relate to interference between first base station and at least one operationally neighbouring base station and may be Background Interference Matrix (BIM) data.

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Номер записи: 20

10-05-2012 дата публикации

System and method for managing resource in communication system

Номер: US20120115525A1

Автор: Dong-Hun Lee, Hyunduk KANG

Принадлежит: Electronics and Telecommunications Research Institute ETRI

Provided is a resource management system in a communication system including a plurality of systems having no right to use a first frequency band. The resource management system includes: a coexistence manager (CM) configured to manage the plurality of systems for the purpose of coexistence and frequency sharing of the plurality of systems in a frequency band available for the plurality of systems, when the available frequency band is detected in the first frequency band; a coexistence enabler (CE) configured to transmit and receive information of the plurality of systems and information of the CM; and a coexistence discovery and information server (CDIS) configured to support the CM to control the plurality of systems. The CM performs channel classification for the first frequency band based on channel information of the available frequency band, and allocates operating channels to the plurality of systems.

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Номер записи: 21

17-05-2012 дата публикации

System and method for measuring channel state information in a communications system

Номер: US20120120910A1

Автор: David Jean-Marie Mazzarese, YANG Tang

Принадлежит: FutureWei Technologies Inc

A method for operating a communications controller includes partitioning a full band signal selected from a set of orthogonal full band signals into a plurality of subband signals according to special signal frequency resource information of a special signal being transmitted by the communications controller in a manner that reduces or avoids a collision between the full band signal and the special signal, where the plurality of subband signals carries information for estimating a channel between the communications controller and a communications device. The method also includes assigning a subband associated with each subband signal in the plurality of subband signals to a respective subband time resource according to special signal time resource information of the special signal in a manner that reduces or avoids a collision between the subband and the special signal, where the assigned subband is part of a plurality of subbands.

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Номер записи: 22

17-05-2012 дата публикации

Adaptive Beamforming Configuration Methods And Apparatus For Wireless Access Points Serving As Handoff Indication Mechanisms In Wireless Local Area Networks

Номер: US20120120918A1

Автор: Vytautas Robertas Kezys

Принадлежит: Research in Motion Ltd

A mobile communication device includes a processor and a communication subsystem coupled to the processor. The communication subsystem is configured to provide the mobile device with wireless communications via an access point of a wireless network. The mobile device communicates with the access point via the communication subsystem for adjusting boundaries of an RF coverage region of the access point. The mobile device subsequently communicates with the access point via the communication subsystem in the adjusted RF coverage region for handoff to another wireless network, while the access point serves as part of a handoff indication mechanism in the wireless network.

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Номер записи: 23

24-05-2012 дата публикации

Multi-radio coexistence

Номер: US20120129457A1

Автор: Joel Benjamin Linsky

Принадлежит: Qualcomm Inc

A method of wireless communication includes monitoring coexistence issues among supported radios in a User Equipment (UE). The method includes configuring a UE with first and second filter configurations. The first filter configuration covers a first frequency band, for example a portion of the ISM band. The first filter configuration may be wider than the second filter configuration, which excludes a portion of the first frequency band that is adjacent to a proximate second frequency band, for example LTE Band 7 or LTE Band 40. The UE selects between the first and second filter configurations based on the frequency of a first UE event. If the UE event is in a frequency in the adjacent portion excluded by the second filter configuration, the UE arbitrates depending on event priority. The second filter configuration may be chosen to reduce or minimize arbitration.

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Номер записи: 24

31-05-2012 дата публикации

Method and system enabling use of white space radio spectrum using an out of band control channel

Номер: US20120135767A1

Автор: Rajendra Singh

Принадлежит: TELCOM VENTURES LLC

A system ( 10 ) and method ( 50 ) of dynamic allocation of spectrum for a communication device involves receiving ( 51 ) a user channel map (UCM) on a control channel that is outside the band of interest. The UCM can include at least boundary location information for one or more channel resources. The method can determine ( 52 ) at least an approximate location for the communication device, compare ( 56 ) the approximate location with the boundary location information, and determine ( 57 ) which channels can avoid co-channel and adjacent channel interference with licensed users and other unlicensed users based on the comparison. The method can relax communication parameters for the one or more channel resources if no licensed user signals are found in the user channel map, and tightening the communication parameters if co-channel, adjacent channel, or other interference generating channel use is found within the user channel map.

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Номер записи: 25

07-06-2012 дата публикации

Spectrum sensor for cognitive wireless communication and method for cognitive wireless communication

Номер: US20120140793A1

Автор: Chen Sun, Ha Nguyen Tran, Hiroshi Harada, Yohannes Alemseged Demessie

Принадлежит: National Institute of Information and Communications Technology

Provided is a spectrum sensor for cognitive wireless communication whereby it is possible to improve communication efficiency. In a cognitive wireless communication system, a spectrum sensor senses spectra in multiple frequency bands. A spectrum sensor is configured to be able to operate in one operation mode selected from among a spectrum sensing mode for sensing spectra, and a communication mode for communicating with a wireless communication device. Further, the spectrum sensor is provided with a controller for controlling the operation mode. The controller switches between the above-mentioned operation modes during the symbol period of an ultra-wideband physical layer (UWB PHY).

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Номер записи: 26

14-06-2012 дата публикации

Tiered wireless, multi-modal access sytem and method

Номер: US20120149364A1

Автор: Charles M. Leedom, Jr.

Принадлежит: MLR LLC

A wireless, multi-modal access device and system adapted to integrate a number of communications networks operating in differing communication modes. to facilitate transfer of communication links during a communication session to promote efficient use of the communication networks. The system includes a plurality of Universal Multi-Modal Access. Devices UMMAD that are capable of operating at different frequencies and different protocols (TDMA, AMPS, .CDMA, GSM, PCS etc.) to communicate with any one of a number. of Wide Bandwidth Gateways (WBG), which are each capable of communication using one or more of the protocols. The communication links may be switched from one WBG to another or from one protocol to another during a communication session to continue the session under the control of a Universal System Traffic Controller. Numerous other applications of the UMMADs for unique identification and e-commerce are disclosed.

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Номер записи: 27

21-06-2012 дата публикации

Radio communication system, radio terminal, radio base station, controller device and radio communication method

Номер: US20120157138A1

Автор: Mitsuharu Senda

Принадлежит: Kyocera Corp

A controller device receives power information and location information from a first radio base station, the power information indicating, for each frequency, the power of the signal arriving at a radio terminal in the communication area of the first radio base station from a second radio base station, and the location information indicating the location of the radio terminal. The controller device is provided with an identifying unit which, based on the power information and location information received from the first radio base station, identifies an interference location and identifies an interference frequency, the interference location being the location where the power of the signal arriving at the communication area is greater than or equal to a predetermined value, and the interference frequency being the frequency of the signal arriving at the interference location.

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Номер записи: 28

28-06-2012 дата публикации

Dynamic packet scheduling method, apparatus and computer program

Номер: US20120163251A1

Автор: Inbar Anson Bratspiess, Lior Uziel

Принадлежит: Sequans Communications SA

A dynamic packet scheduling method in a cellular OFDMA-TDD network. The method includes the following steps: obtaining at least one PHY based index defining a preferred allocation of a mobile station among at least two frequency reuse zones in a cell of said communication network; and scheduling bursts of packets to transmit to the mobile station, by at least one frequency reuse zone among the at least two frequency reuse zones, in view of transmission requests and the at least one PHY based index.

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Номер записи: 29

28-06-2012 дата публикации

Integrated circuit for controlling sequence assigning method and reference signal generating method

Номер: US20120165054A1

Автор: Daichi Imamura, Sadaki Futagi, Tomofumi Takata, Yoshihiko Ogawa

Принадлежит: Panasonic Corp

Provided is a sequence allocation method capable of reducing inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system. In the sequence allocation method divides R×M sequences specified by a ZC sequence number r (r=1 to R) and a cyclic shift sequence number m (m=1 to M) into a plurality of sequence groups X (X=1 to R) in accordance with the transmission band width of the reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequence is 54. Each of the sequence groups is formed by two sequences. Accordingly, the number of sequence groups is 27. The 27 types of sequence groups are allocated to each cell.

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Номер записи: 30

28-06-2012 дата публикации

Method and apparatus for acquiring available channel information in a wireless local area network system

Номер: US20120165056A1

Автор: Eun Sun Kim, Yong Ho Seok

Принадлежит: LG ELECTRONICS INC

Methods and apparatuses for acquiring/providing available channel information using Generic Advertisement Service (GAS) protocol in a wireless local area network (WLAN) are disclosed. AP (Access Point) station has a capability to acquire information for available channels from a database using a specific protocol related to an operation within the White Space (e.g. Access Network Query Protocol (ANQP)). And, non-AP station can retrieve the information for available channels by transmitting a Generic Advertisement Service (GAS) initial request frame to the AP station, wherein the GAS initial request frame comprises an Advertisement Protocol Element whose element ID indicates the specific protocol, and receiving a GAS initial response frame comprising a White Space Map (WSM) the specific protocol. The WSM comprises one or more white space channel units, and each of the white space channel units comprises a channel number field indicating one of the available channels and a power constraint field indicating a maximum allowable power on the indicated channel.

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Номер записи: 31

12-07-2012 дата публикации

NETWORK SETUP IN WIDE CHANNEL WIRELESS LOCAL AREA NETWORKS (WLANs)

Номер: US20120176974A1

Автор: Hemanth Sampath, Santosh Paul Abraham, Simone Merlin

Принадлежит: Qualcomm Inc

Methods and apparatus for network setup in wide channel WLANs are provided. Techniques for co-existence of 20 MHz and 40 MHz networks (e.g., as defined by IEEE 802.11n) may be extended to 80 MHz and 160 MHz networks. For example, a primary channel of an existing network may be designated as the primary channel of a new network. Further, a primary channel of the existing network may not be used as a secondary channel in the new network. Intolerance operation between networks may include a first network releasing one or more channels in response to an intolerance indication received from a second network. Furthermore, in response to the intolerance indication from the second network, the first network may utilize one or more channels for communicating in the first network using a first set of access parameters. The access parameters may depend on the intolerance indication.

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Номер записи: 32

19-07-2012 дата публикации

Cognitive multi-user ofdma

Номер: US20120182875A1

Автор: Amer A. Hassan, Christian Huitema

Принадлежит: Microsoft Corp

A computing device operating according to a frequency division multiplexed protocol in which communication occurs over a signal formed from a plurality of sub-channels selected from anywhere in a frequency spectrum. A computing device may select sub-channels cognitively by using information about sub-channels previously deemed suitable or unsuitable by that computing device or other computing devices. A described technique for determining sub-channel suitability includes analyzing radio frequency energy in the sub-channel to detect signals generated by another computing device or high noise levels. Information may also be used to cognitively select sub-channels to be analyzed, such as by first selecting for analysis previously-used sub-channels.

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Номер записи: 33

09-08-2012 дата публикации

System and method of dual network with a shared base

Номер: US20120202484A1

Автор: Eli Fogel, Jochen Kilian, Otmar Rengert, Steven Dickinson

Принадлежит: DSP Group Israel Ltd

An apparatus for enabling operation of a LDC network within a DECT system having a modified protocol, comprising an A-field with an identity of a FP shared by both the DECT system and the LDC network, B-fields with unique sync patterns for the DECT system and the LDC network, respectively; and separate dummy bearers for transmission by the FP for the DECT system and the LDC network, respectively, and a method for using the same.

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Номер записи: 34

09-08-2012 дата публикации

Method and system enabling use of white space radio spectrum using digital broadcast signals

Номер: US20120202510A1

Автор: Rajendra Singh

Принадлежит: TELCOM VENTURES LLC

A system ( 10 ) and method ( 50 or 70 ) of dynamic allocation of spectrum for a communication device where a UHF band is currently unused for licensed television broadcasting involves determining ( 51 ) a location of a user device, determining ( 52 ) which UHF television broadcast channels are available for use by the user device and determining ( 53 ) a maximum allowed transmission power for a given channel based on signal strength for the given channel and on adjacent channels before transmitting ( 54 ) the maximum allowed transmission power and location by the user device to a remote server. The method can receive ( 55 ) polygon endpoints from a television broadcast defining the location of usable reception of the television broadcast.

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Номер записи: 35

16-08-2012 дата публикации

Methods and apparatus for wireless coexistence based on transceiver chain emphasis

Номер: US20120207032A1

Автор: Arthur Lin, Camille Chen, Chris Hartman, Chris Zimmermann, Jaime Tolentino, Lei Li, Michael J. Giles

Принадлежит: Apple Inc

Methods and apparatus for reduction of interference between a plurality of wireless interfaces. In one exemplary embodiment, a device having a first (e.g., Wi-Fi) interface and a second (e.g., Bluetooth) interface monitors interference between its interfaces. A reduction in transmit power of the Wi-Fi module causes a disproportionately larger reduction in undesirable interference experienced at the Bluetooth antennas. For example, when the Bluetooth interface detects interference levels above acceptable thresholds, the Wi-Fi interface adjusts operation of one or more of its transmit chains based on various conditions such as duty cycle, Received Signal Strength Indication (RSSI), etc. Various embodiments of the present invention provide simultaneous operation of WLAN and PAN interfaces, without requiring time division coexistence, by reducing power on a subset of interfering antennas.

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Номер записи: 36

16-08-2012 дата публикации

Frequency allocation method and device for a frequency sharing system in an environment where a primary licensing system is present

Номер: US20120208582A1

Автор: Heon Jin Hong, Hyunduk KANG

Принадлежит: Electronics and Telecommunications Research Institute ETRI

Provided is a method and apparatus for assigning a frequency in an environment where an incumbent system exists. In a frequency environment where the incumbent system exists, a frequency resource management may be smoothly performed using a plurality of frequency sets classified based on a utilization state of each sub-frequency resource. When a frequency sharing system using the same radio access technology (RAT) as a frequency sharing system to be assigned with a frequency resource exists, it is possible to reduce overhead for frequency sharing by priorly assigning a corresponding frequency resource to the frequency sharing system to be assigned with the frequency resource.

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Номер записи: 37

30-08-2012 дата публикации

Methods for generating radio frequency maps of networks

Номер: US20120220295A1

Автор: Benjamin Cheung, Brahm Parasher, Gopal N. Kumar, Padma Sudarsan, Tracey G. Dwyer, Victor DaSilva

Принадлежит: Alcatel Lucent USA Inc

At least one example embodiment discloses a method of generating a radio frequency (RF) map of a network. The method includes obtaining, by a controller, received signal strengths of at least one user equipment (UE) in a first technology network, determining, by the controller, a back projection of a second technology network based on the received signal strengths, and generating, by the controller, an RF map of the second technology network based on the determining. The back projection represents an attenuation function of a coverage area of the second technology network and the RF map illustrates the attenuation function of the coverage area of second technology network.

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Номер записи: 38

13-09-2012 дата публикации

Method, apparatus and computer program for controlling coexistence between wireless networks

Номер: US20120230250A1

Автор: Jari Junell, Mika Kasslin, Päivi Ruuska

Принадлежит: Nokia Oyj

Method, apparatus, and computer program product embodiments are disclosed for independent wireless resource sharing on a fair basis to enable selecting the most suitable coexistence between wireless networks. Example embodiments of the invention include a method comprising receiving, at a network controller, a coexistence management service request allowing one or more network controllers to make decisions concerning operational parameters of a wireless network originating the request; determining whether control of the wireless network is to be shared with one or more network controllers serving one or more wireless networks neighboring the wireless network originating the request; and in response to determining that control of the wireless network is not to be shared with the one or more network controllers serving the one or more wireless networks neighboring the wireless network originating the request, notifying the one or more network controllers serving the one or more wireless networks neighboring the wireless network originating the request that the wireless network has requested a coexistence information service.

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Номер записи: 39

20-09-2012 дата публикации

Autocorrelation-based spectrum sensing for fm signals

Номер: US20120238227A1

Автор: Hou-Shin Chen, WEN Gao

Принадлежит: Individual

A method and system for detection of available a white space channel in an area of licensed transmitters includes a detector which utilizes the autocorrelation analysis of a channel in an frequency modulated (FM) band. Calculation of the autocorrelation excludes an initial set of correlation delay values such that large values of autocorrelation are removed. The remaining autocorrelation based on higher correlation delay values exposes the sinusoidal nature of an FM transmitter operating in the selected channel. White space becomes available to a user if no transmitter is detected using the autocorrelation detection method.

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Номер записи: 40

20-09-2012 дата публикации

Method for scanning services with a multimode communication device

Номер: US20120238307A1

Автор: Michael Grannan

Принадлежит: AT&T INTELLECTUAL PROPERTY I LP

A system that incorporates teachings of the subject disclosure may include, for example, a method for receiving on a control channel signaling software for scanning portions of a television spectrum, where the control channel operates in a portion of the television spectrum. The method further includes scanning for services operating in the television spectrum according to the received signaling software, detecting one or more services operating in the television spectrum, and selecting a service of the detected one or more services operating in the television spectrum. Other embodiments are disclosed.

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Номер записи: 41

27-09-2012 дата публикации

Adaptive traffic and interference aware radio resource management

Номер: US20120244873A1

Автор: Claire-Sabine Randriamasy, Veronique Capdevielle

Принадлежит: Individual

A method for radio resources management within a set of cells (C 1 , . . . , C N ) covered by base stations (BS 1 , . . . , BSN), comprising:—retrieving traffic demands information including relative Quality of Service (QoS) and radio performance figures on each cell (C i ) from correspondent base station (BS i );—processing the traffic demands information so as to detect at least one periodic traffic pattern;—adjusting allocated radio resources for each cell (C i ) according to the detected at least one periodic traffic pattern; and—reviewing the adjusted allocated radio resources according to base stations (BS 1 , . . . BS N ) feedbacks.

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Номер записи: 42

04-10-2012 дата публикации

Femto parameter profiles based upon nearby access point

Номер: US20120252423A1

Автор: Arthur Brisebois, Thomas Wallace Henderson

Принадлежит: AT&T INTELLECTUAL PROPERTY I LP, AT&T MOBILITY II LLC

A system and methodology that facilitates efficiently and accurately defining operating parameters for a femto access point (FAP) is provided. In particular, during provisioning of the FAP, the system obtains operating parameters utilized by a nearby FAP expected to have a substantially similar radio environment as the provisioning FAP. Moreover, weighting is applied to the nearby FAP to determine which set of operating parameters to utilize at the provisioning FAP. Accordingly, pre-existing operating parameters, optimized by the nearby FAP are employed to augment initial network listen measurements performed at the provisioning FAP, and thus improve speed and accuracy of initial FAP parameter provisioning.

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Номер записи: 43

18-10-2012 дата публикации

Control Channel Coordination in Heterogeneous Networks

Номер: US20120263093A1

Автор: Frank Frederiksen, Klaus Ingemann Pedersen, Risto Juhani Mononen, Sabine ROESSEL, Troels Emil Kolding

Принадлежит: NOKIA SIEMENS NETWORKS OY

An apparatus, method, system and computer program product provide control channel coordination in heterogeneous networks. Parameters are provided indicating the availability of resources, wherein a resource is defined as an available radio frequency per time interval, and parameters indicate configuration of a physical channel configured for downlink control, for a physical control channel configured for format indication, and for a physical channel configured for HARQ indication, for use in both of two different communication cells providing radio communication services for terminals located therein. Further, a first resource allocation set and a second resource allocation set are determined, wherein determinations of the first resource allocation set and the second resource allocation set are made to be as mutually disjoint in resource allocation as possible in consideration of the parameters.

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Номер записи: 44

15-11-2012 дата публикации

Cognitive radio base station and communication method thereof in multi-user multiple-input multiple output cognitive radio network system

Номер: US20120289266A1

Автор: Byung Jang Jeong, Hoi Yoon Jung, Jae Hyun Park, Jung Sun Um, Sung Hyun Hwang

Принадлежит: Electronics and Telecommunications Research Institute ETRI

A communication method for a cognitive radio (CR) base station in a multi-user multiple-input multiple-output (MIMO) CR communication system including the CR base station and CR terminals, may include calculating, from an interference channel, an orthogonal projection matrix to be used for removing interference on a primary user through use of a zero forcing (ZF) processing scheme, and obtaining a beamforming weight vector for each of the CR terminals, through use of the orthogonal projection matrix.

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Номер записи: 45

29-11-2012 дата публикации

Zero delay frequency switching with dynamic frequency hopping for cognitive radio based dynamic spectrum access network systems

Номер: US20120300811A1

Автор: Wendong Hu

Принадлежит: STMicroelectronics lnc USA

This invention relates to cognitive radio based wireless communications of dynamic spectrum access networks, and in particular to a method of addressing zero-delay frequency switching for cognitive dynamic frequency hopping. The method combines regular (periodic) channel maintenance with dynamic frequency hopping over a cluster of vacated channels that are initially setup such that the switching delays for channel setup and channel availability check are eliminated.

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Номер записи: 46

06-12-2012 дата публикации

Radio communication device, radio communication method and radio communication system

Номер: US20120307737A1

Автор: Yuichi Morioka

Принадлежит: Sony Corp

To be provided is a radio communication device including a packet generation unit for generating a packet including first decoding information that can be recognized by a radio communication device corresponding to a first communication scheme, second decoding information that can be recognized by a radio communication device corresponding to a second communication scheme and third decoding information that can be recognized by a radio communication device corresponding to a third communication scheme, and a transmission unit for transmitting the packet generated by the packet generation unit.

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Номер записи: 47

13-12-2012 дата публикации

Efficient Transmission for Low Data Rate WLAN

Номер: US20120314653A1

Автор: Yong Liu

Принадлежит: MARVELL WORLD TRADE LTD

A signal field is generated to include (i) a field to indicate that a physical layer (PHY) data unit is a control frame, and (ii) one or more of a frame control field, a receiver address (RA) field, and a cyclic redundancy check (CRC) field. A PHY data payload (i) that includes one or more of a service field, a transmitter address (TA) field, a network ID field, and a CRC field, and (ii) that omits an RA field is generated. The PHY data unit is generated to include (i) a preamble, (ii) a PHY header having the SIG field, and (iii) the PHY data payload. The PHY data unit is transmitted.

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Номер записи: 48

13-12-2012 дата публикации

Station Operation Method and Apparatus in TV Whitespace

Номер: US20120314658A1

Автор: Eunsun Kim, Yongho Seok

Принадлежит: Individual

The present invention relates to a station (hereinafter, ‘STA’) operation method and apparatus in a TV whitespace. In a TVWS band, when an STA operating as an unlicensed device with permission to operate in an available channel not used by a licensed device needs to operate in the TVWS band by acquiring information on the available channel, the STA transmits an available channel information request message to a device having database information; receives, from the device having database information, an ACK message for the available channel information that includes (a) identification information on an available channel, (b) information on the maximum allowable power level in the available channel, and (c) information on valid time of the available channel; and transmits/receives a signal using the information of (a), (b) and (c), i.e., using the maximum allowable power level within the valid time in the available channel.

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Номер записи: 49

13-12-2012 дата публикации

Systems, devices and methods for providing access to a distributed network

Номер: US20120314683A1

Автор: Elad Barkan

Принадлежит: BARKAN WIRELESS IP HOLDINGS LP

Systems and apparatus, and methods relating thereto, can be implemented to include base station having a transceiver adapted to establish a radio-frequency link with a mobile telephone; a first interface, separate from said transceiver, that is adapted for communication over the public Internet; and a controller. The controller can be adapted to obtain, from a server accessed via the public Internet, gateway address information for a remote gateway that provides an interface between the public Internet and a network of a telephone service provider and route data from the mobile telephone, over the public Internet, to the remote gateway.

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Номер записи: 50

13-12-2012 дата публикации

Efficient Transmission for Low Data Rate WLAN

Номер: US20120314695A1

Автор: Yong Liu

Принадлежит: MARVELL WORLD TRADE LTD

A network interface device utilizes a physical layer (PHY) protocol data unit (PPDU) maximum duration such that, (A) when operating in a first mode of operation, a data unit (i) defined by a protocol in a layer above a PHY protocol in a protocol stack and (ii) having a maximum length defined by the protocol above the PHY protocol will fit entirely within a single PPDU at a lowest possible data rate in the first mode of operation, and (B) when operating in a second mode of operation, the data unit (i) defined by the protocol in the layer above the PHY protocol and (ii) having the maximum length defined by the protocol above the PHY protocol will not fit entirely within a single PPDU at a lowest possible data rate in the second mode of operation.

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Номер записи: 51

13-12-2012 дата публикации

System and method for determining the severity of interference in different areas of a cellular radio network and coordinating radio resource management features in response

Номер: US20120315935A1

Автор: Ke Wang Helmersson, Martin HESSLER

Принадлежит: Individual

An interference analysis tool for identifying an interference problem area in a cellular radio network in which at least a first User Equipment (UE 1 ) and a second UE (UE 2 ) operate. The tool receives signal quality measurements and determines uplink or downlink interference severity. For UE 2 uplink interference, the tool determines a first uplink Signal-to-Interference-and-Noise-Ratio (SINR) experienced by UE 2, wherein the first SINR includes uplink interference from UE 1. The tool also determines a second uplink SINR level (SINR 0 ) experienced by UE 2, wherein SINR 0 does not include the uplink interference from UE 1 . The tool calculates a difference (ΔSINR) between SINR and SINR 0 for UE 2, and identifies the area where UE1 is operating as an interference-causing area when the ΔSINR for UE 2 is greater than a threshold value. The tool may present interference severity levels to an operator, and may initiate Radio Resource Management (RRM) procedures to mitigate interference problems in the network.

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Номер записи: 52

13-12-2012 дата публикации

Communication control method, communication system, and management server

Номер: US20120315936A1

Автор: Ryo Sawai, Ryota Kimura

Принадлежит: Sony Corp

A management server in a network including a first transmitting device that communicates with a first receiving device and a second transmitting device that communicates with a second receiving device. The management server includes a network interface that receives a parameter corresponding to a level of improvement of communication quality at the second receiving device, and a processor that calculates an allowable interference amount at the first receiving device based on the parameter.

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Номер записи: 53

13-12-2012 дата публикации

Reducing spectrum interference between wireless networks

Номер: US20120315942A1

Автор: Chao Zhu, Hai Zhan, Jianbin Tang, Jun Song Wang, Qing Wang, RONG Yan, Yonghua Lin, Zhen Bo Zhu

Принадлежит: International Business Machines Corp

A method and apparatus for reducing spectrum interference between wireless networks. This is realized by arranging at least one sub-coordinating apparatus, namely, a monitoring apparatus, in respective wireless network, and by arranging a coordinating apparatus, namely, an allocation apparatus in the whole network. Wherein, the sub-coordinating apparatus monitors the spectrum utilization situation of the wireless network where it is located, reports it to the coordinating apparatus, and requests the coordinating apparatus for spectrum resource when new spectrum resource is needed. The coordinating apparatus maintains the spectrum utilization information of each wireless network, and allocates appropriate spectrum resource to the sub-coordinating apparatus which requests spectrum resource based on the maintained information. Therefore, the interference of inter-wireless networks is reduced or even avoided through such overall management that the coordinating apparatus allocates corresponding spectrum resources to a plurality of wireless networks capable of sharing spectrum resources.

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Номер записи: 54

27-12-2012 дата публикации

Mobile communication system, base station, cell coverage control method

Номер: US20120327909A1

Автор: Hitoshi Koike, Koji Ogawa, Tohru Nakahara

Принадлежит: Fujitsu Ltd

There is provided a mobile communication system, a base station, and a method of controlling cell coverage that is capable of operating a mobile communication system such that the cell coverage is maintained approximately and timely at a target level without requiring much labor. In this mobile communication system, a mobile station reports to the base station the position information of the mobile station and the value of reception power of reference signal from the base station. The base station obtains the measured cell coverage as a result of measurement of cell coverage based on the position information and the value of reception power from the mobile stations, and controls at least one of plural parameters including transmission power to the mobile stations, tilt angle of antenna, etc., so as to minimize deviation of the measured cell coverage from the target cell coverage.

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Номер записи: 55

03-01-2013 дата публикации

System and Method for Dynamic Coordination of Radio Resources Usage in a Wireless Network Environment

Номер: US20130005240A1

Автор: David Steer, Dongsheng Yu, Robert Novak

Принадлежит: Research in Motion Ltd

An architecture, system and associated method for dynamic coordination of radio resource usage in a network environment. In one aspect, a relay communication method comprises detecting, by a first wireless mobile device, sensory data associated with multiple radio channels relative to at least one radio element in a sensing area of the first wireless mobile device. If the first wireless mobile device is out of range of a wide area cellular network, a short-range wireless communication path is established with a second wireless mobile device having a wide area cellular communication connection. The sensory data is transmitted by the first wireless mobile device to the second wireless mobile device for reporting to a network element via a wide area cellular network serving the second wireless mobile device.

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Номер записи: 56

03-01-2013 дата публикации

Method and apparatus for mapping operating parameter in coverage area of wireless network

Номер: US20130005297A1

Автор: Susan W. Sanders, Tian Bu

Принадлежит: Alcatel Lucent USA Inc

A method for mapping an operating parameter in a coverage area of a wireless network includes obtaining parameter measurements for an operating parameter associated with mobile stations operating in a select portion of a network coverage area for a wireless network, the network coverage area formed by base stations defining cellular coverage areas, the select portion formed by at least one base station, each at least one base station including multiple sector antennas, each sector antenna defining a sector coverage area within the cellular coverage area; and, for each obtained parameter measurement, estimating an instant geographic location of the mobile station in relation to the at least one base station serving the mobile station, each instant geographic location based on a round trip measurement and a signal strength measurement associated with the mobile station, each round trip measurement associated with the serving base station.

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Номер записи: 57

10-01-2013 дата публикации

Coexistence of multiple wireless networks

Номер: US20130010597A1

Автор: Hang Liu, John Li, Mingquan Wu, Ramkumar Perumanam, Saurabh Mathur, Xiuping Lu

Принадлежит: Thomson Licensing LLC

Described herein are a method and apparatus including calculating an aggregate peak total traffic demand for all overlapping access points in an interference range, comparing the aggregate peak total traffic demand to a threshold, rejecting a requested new quality of service traffic stream responsive to results of the comparison, calculating a peak total traffic demand for each overlapping access point in the interference range if the requested new quality of service traffic stream is admissible responsive to results of the comparison, comparing the peak total traffic demand for each overlapping access point in the interference range, if the requested new quality of service traffic stream is admissible, to the threshold and one of accepting the requested new quality of service traffic stream and rejecting the requested new quality of service traffic stream responsive to results of the second comparison.

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Номер записи: 58

17-01-2013 дата публикации

Spectrum Management System For Municipal Spectrum Using Guided Cognitive Radio

Номер: US20130017792A1

Автор: II Robert Raymond Miller

Принадлежит: AT&T Corp

Described is a system and method for assigning a frequency to an access point in a wireless network comprising a plurality of access points. The system and method includes accessing a rule-base to obtain a set of rules for the wireless network, accessing a license database to obtain information about relevant wireless nodes in a region, creating a list of possible primary node frequencies from a list of frequencies associated with primary wireless nodes in the license database, creating a list of possible secondary node frequencies from a list of frequencies associated with secondary wireless nodes in the license database, identifying a list of clear frequencies from a set of unused frequencies, selecting a frequency from frequencies in the lists of possible primary node frequencies, possible secondary node frequencies, and clear frequencies and registering the frequency in the license database.

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Номер записи: 59

24-01-2013 дата публикации

Low power radio device and radio resource sharing method for low power radio device

Номер: US20130021967A1

Автор: Chi Sung Bae, Hyo Sun HWANG, Nak Myeong Kim, Young Jun Hong

Принадлежит: SAMSUNG ELECTRONICS CO LTD

A low power radio device and a radio resource sharing method for the low power radio device are provided. In the low power radio device, a channel state (CS) is detected by carrier sensing before transmission of each frame to reduce interference and a need of retransmission of each frame, accordingly, reducing energy consumption.

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Номер записи: 60

24-01-2013 дата публикации

Method, base station, terminal and communication system for selecting a component carrier

Номер: US20130022016A1

Автор: Yuxin Wei

Принадлежит: Sony Corp

A method, base station, terminal and communication system for selecting a component carrier. The method includes: determining the coverage range of each available carrier which can be used by the terminal; determining whether the distribution of the coverage ranges of all available carriers accords with a preset distribution mode; and in the case of according with the presetting distribution mode, at least according to a rule which is determined by the distribution mode, determining a component carrier to be used. With the embodiments, a component carrier used by the terminal can be reasonably chosen.

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Номер записи: 61

24-01-2013 дата публикации

Capacity and coverage self-optimization method and device in a mobile network

Номер: US20130023217A1

Автор: Hongcheng Zhuang, Jietao ZHANG, Zezhou LUO

Принадлежит: Huawei Technologies Co Ltd

The present invention discloses an adaptive cell coverage and capacity optimization method and device in a mobile communication network, aiming to improve adaptive optimization performance of cell capacity and coverage. The technical solutions includes: calculating spectral efficiency of a cell; if the spectral efficiency of the cell is less than a first threshold, starting vertical sectorization processing of the cell to divide the cell into an inner sector and an outer sector, and configuring relevant parameters of the inner sector and the outer sector to improve the spectral efficiency of the cell; calculating spectral efficiency of the outer sector; and if the spectral efficiency of the outer sector is less than a second threshold, starting inter-cell interference coordination to improve the spectral efficiency of the outer sector, and reconfiguring the relevant parameters of the inner sector and the outer sector to improve the spectral efficiency of the cell.

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Номер записи: 62

31-01-2013 дата публикации

Packet transferring method, mobile communication system and mobile station

Номер: US20130028188A1

Автор: Takayuki Kondo

Принадлежит: NEC Corp

In a mobile Communication system which includes a base station controller, a plurality of radio base stations connected to the base station controller, and a mobile station simultaneously communicable with the plurality of radio base stations, the base station controller transfers a packet through the plurality of radio base stations to the mobile station. The mobile Station receives the packet as a plurality of reception packets through the plurality of radio base stations. The mobile station includes a controller that selects, among the plurality of reception packets supplied from the plurality of radio base stations, a best quality packet as a selected packet and sends, if the selected packet includes an error portion, a retransmission request to one of the plurality of base stations that sent the selected packet in order to request retransmission of a correct portion corresponding to the error portion.

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Номер записи: 63

31-01-2013 дата публикации

Method and System for Control Format Detection in Heterogeneous Cellular Networks

Номер: US20130028199A1

Автор: Chandra Sekhar Bontu, Yi Song, YI Yu, Youn Hyoung Heo, Yufei Wu Blankenship, Zhijun Cai

Принадлежит: Research in Motion Ltd

A user equipment having a first mechanism to obtain a control region size of a sub-frame of a cell, the user equipment having a processor; and a communications subsystem, wherein the processor and communications subsystem are configured to cooperate to: determine having a first mechanism to obtain a control region size of a sub-frame of the first cell, second cell, or both, whether the user equipment is within an area of the second cell; and utilize, a second mechanism to obtain a control region size of a sub-frame of the second cell while the user equipment is within the area of the second cell.

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Номер записи: 64

31-01-2013 дата публикации

Method and device for iterative blind wideband sampling

Номер: US20130028353A1

Автор: Chester Park

Принадлежит: Telefonaktiebolaget LM Ericsson AB

Devices and methods are for iteratively sampling a wideband signal in order to recover one or more narrowband signals are disclosed. In one aspect, a wideband signal is received and the signal is sampled using a sampling device, which includes an amplifier with an initial gain level, to produce a plurality of sampled signals. A first set of narrowband signals may be recovered from the plurality of sampled signals. Then, the wideband signal is re-sampled to produce a second plurality of sampled signals. The re-sampling includes increasing the gain of the amplifier to a second level and suppressing a component of the wideband signal. A second set of narrowband signals may then be recovered from the second set of sampled signals.

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Номер записи: 65

07-02-2013 дата публикации

Terminal apparatus, communication control apparatus, wireless communication system, and communication control method

Номер: US20130034001A1

Автор: Atsushi Yoshizawa, Nishiki Mizusawa

Принадлежит: Sony Corp

Provided is a terminal apparatus including a first communication unit that performs communication according to a first wireless communication scheme using frequency division duplex; a second communication unit that performs communication according to a second wireless communication scheme different from the first wireless communication scheme; a detecting unit that detects deterioration of reception quality of the first communication unit due to generation of the communication by the first communication unit and the communication by the second communication unit at the same timing; and a reporting unit that reports the deterioration of the reception quality to a communication control apparatus scheduling the communication by the first communication unit, when the deterioration of the reception quality is detected by the detecting unit.

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Номер записи: 66

07-02-2013 дата публикации

Wireless Communication System and Device for Coupling a Base Station and Mobile Stations

Номер: US20130035130A1

Автор: Paul F. Struhsaker

Принадлежит: Individual

A wireless communication system is provided that includes a wireless communication device in wireless communication with a base station and mobile stations. The wireless communication device includes first and second transceivers coupled to each other. The first transceiver is coupled to an antenna and is operable to communicate with the base station, which is also in wireless communication with other wireless communication devices. The second transceiver is coupled to another antenna and is in wireless communication with the plurality of mobile stations. The first transceiver receives a first signal from the base station intended for a one of the mobile stations, and in response the second transceiver transmits the first signal to the mobile station. The second transceiver receives a second signal from the mobile station intended for the base station, and in response the first transceiver transmits the second signal to the base station.

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Номер записи: 67

14-02-2013 дата публикации

Method and apparatus for dynamic frequency selection in wireless local area network system

Номер: US20130039200A1

Автор: Eun Sun Kim, Ill Soo Sohn, Jong Hyun Park, Yong Ho Seok

Принадлежит: LG ELECTRONICS INC

A method of dynamic frequency selection by an access point (AP) in a basic service set (BSS) in a wireless local area network is provided. The access point configured to communicate over a primary subchannel and a secondary subchannel. The method includes: transmitting a frame including a quiet element and a quiet channel element; and performing channel measurements in the quiet interval. The quiet element defines an quiet interval during which no transmission occurs, the quiet channel element indicates that the secondary subchannel is to be quieted during the quiet interval, and the quiet channel element indicates a condition under which the primary subchannel may be used during the quiet interval.

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Номер записи: 68

14-02-2013 дата публикации

Adaptive Resource Partitioning in a Wireless Communication Network

Номер: US20130039206A1

Автор: Aamod D. Khandekar, Mohammad J. Borran

Принадлежит: Qualcomm Inc

Techniques for performing adaptive resource partitioning are described. In one design, a node computes local metrics for different possible actions related to resource partitioning to allocate available resources to a set of nodes that includes the node. Each possible action is associated with a set of resource usage profiles for the set of nodes. The node sends the computed local metrics to at least one neighbor node in the set of nodes. The node also receives local metrics for the possible actions from the neighbor node(s). The node determines overall metrics for the possible actions based on the computed local metrics and the received local metrics. The node then determines allocation of the available resources to the set of nodes based on the overall metrics. For example, the node may select the action with the best overall metric and may utilize the available resources based on a resource usage profile for the selected action.

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Номер записи: 69

14-02-2013 дата публикации

Dynamic spectrum access for networked radios

Номер: US20130040577A1

Автор: Brian W. SNODGRASS, James E. HARDIN, Jeremy H. HOCHSTEDLER

Принадлежит: Raytheon Co

A dynamic spectrum access method for cooperative wireless devices. In one example, a method of establishing a wireless network includes scanning and analyzing a selected frequency band to detect non-cooperative signals within the selected frequency band, determining whether a waveform including one or more radio frequency (RF) carriers and a plurality of intermodulation tones (for multi-carrier waveforms) can be placed within the selected frequency band without interfering with any detected non-cooperative signals, and selecting transmit frequencies for the plurality of RF carriers responsive to obtaining a non-interfering waveform placement solution.

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Номер записи: 70

21-02-2013 дата публикации

Method and Apparatus for Use in a Mobile Communications System Comprising a Relay Node

Номер: US20130044674A1

Автор: Bernhard Raaf, Frank Frederiksen, Jeroen Wigard, Oumer Teyeb, Simone Redana, Vinh Van Phan

Принадлежит: NOKIA SIEMENS NETWORKS OY

A method selecting one of a plurality of communication options, each communication option providing a different division of resources between a first link between at least one relay node and a base station and a second link between said at least one relay node and a plurality of user equipment configured to communicate with said at least one relay node; and using said selected communication option to control the division of resources between said first and second links, wherein said using includes sending information to a user equipment to control an activity of that user equipment in dependence on said selected communication option

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Номер записи: 71

28-02-2013 дата публикации

Telecommunications network, and a method of configuring nodes of a telecommunications network

Номер: US20130053046A1

Автор: Davide Cherubini, Lester Tse Wee Ho, Michele Portolan, Razavi Rouzbeh

Принадлежит: Alcatel Lucent SAS

A method is provided of configuring nodes of a telecommunications network, in which nodes react to changes in configuration of at least one of their respective neighbour nodes. The method includes the steps of: identifying a cluster of neighbouring nodes, identifying which nodes in a cluster are in a frontier region adjacent another cluster, adapting the configuration of nodes in the frontier region in response to the configuration of other nodes in the frontier region, and adapting the configuration of nodes in the cluster in response to the adapted configuration of other nodes in the cluster whilst considering the configuration of the nodes in the frontier region as set.

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Номер записи: 72

28-02-2013 дата публикации

Method and base station for automatic carrier selection

Номер: US20130053049A1

Автор: Housam Al Housami

Принадлежит: Ubiquisys Ltd

A femtocell basestation selects its carrier frequency by detecting a carrier used by at least one other basestation in its network, and selecting its own carrier frequency such that it partially overlaps with the detected carrier. The downlink power of the femtocell basestation is set based on the degree of overlap between the selected carrier and the detected carrier, so that a user equipment having a connection to the other basestation is forced to search for the selected carrier.

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Номер записи: 73

14-03-2013 дата публикации

Wireless Communication System, Cluster Head Equipment (CHE) Installed In Wireless Communication System, And Wireless Communication Method

Номер: US20130064237A1

Автор: Chen Sun, Gabriel Porto Villardi, Ha Nguyen Tran, Hiroshi Harada, Yohannes Alemseged Demessie

Принадлежит: National Institute of Information and Communications Technology

Disclosed is a wireless communication system and the like that can avoid interference even if a plurality of networks coexist. The wireless communication system includes a primary user, cluster head equipment, and a secondary user. The cluster head equipment is for providing a local area network to a cluster region containing the abovementioned primary user. Also, the cluster head equipment contains: an acquisition means that acquires one or both—of information regarding the primary user and information regarding a primary signal—and the like; and a transmission means that transmits information to the secondary user. Then, using this wireless communication system, the secondary user performs cognitive wireless communication or the like on the basis of the information received from the transmission means of the cluster head equipment.

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Номер записи: 74

14-03-2013 дата публикации

Cellular service with improved service availability

Номер: US20130065580A1

Автор: Amer A. Hassan, Billy R. Anders, Jr., Danny Allen Reed

Принадлежит: Microsoft Corp

A cellular communication system in which overload of a base station is averted by offering users the option to communicate using a spectrum outside of the spectrum allocated for cellular communication. Incentives are offered to connect to the base station using the alternative spectrum, which may not support communications at the same rate as could be supported using the spectrum allocated to the base station for cellular communications. Users may be selected to receive an offer to receive incentives based on range to the base station, with users closer to the base station being more likely to receive such an offer. The cellular communications system may be a 3G wireless system and the alternative spectrum may be white space in the digital TV spectrum.

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Номер записи: 75

21-03-2013 дата публикации

Method and system for implementing mobile relay

Номер: US20130072192A1

Автор: Chengjun SUN, Fangmin Xu, Yingyang Li

Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method for implementing mobile relay station is provided. The method includes performing spectrum sensing at least one spectrum sensing entity in a base station, a mobile relay station and a user terminal, sending, by the spectrum sensing entity, the result of spectrum sensing to a spectrum managing entity in the mobile communication system, allocating, by the spectrum managing entity available spectrum to a first link between the mobile relay station and the base station and allocating, by the spectrum managing entity, the available spectrums to a second link between the mobile relay station and the user terminal as working spectrum. The present invention also provides a mobile relay station system. The present invention can solve the problem of capacity bottleneck in the backhaul links and access links in high speed wireless environment.

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Номер записи: 76

28-03-2013 дата публикации

Method, audio/video apparatus and communication device

Номер: US20130076987A1

Автор: John Christopher Clifton, John Nicholas Wilson

Принадлежит: Sony Corp, Sony Europe Ltd

A method and apparatus reducing interference to reception of television signals received by a television receiver. The television receiver includes an antenna receiving television signals and a tuner selecting the television signals transmitted on a carrier signal. The interference is produced by a communication device transmitting radio communication signals that can be received by the television receiver when the tuner is tuned to the television signals. The method transmits a radio beacon signal from a location substantially same as a location of the television receiver, and if the radio beacon signal is detected at the communication device, adapts transmission of the radio communication signals from the communication device to reduce interference at the television receiver. As examples, the communications device is a mobile communications device, mobile telephone, personal computer, or a base station, for example disposed within a house for forming a femto cell.

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Номер записи: 77

28-03-2013 дата публикации

Common anchor based aggregation

Номер: US20130077554A1

Автор: Alpaslan Demir, Amith V. Chincholi, Jean-Louis Gauvreau, Liangping Ma, Rocco Di Girolamo

Принадлежит: InterDigital Patent Holdings Inc

Embodiments contemplate techniques for managing aggregation between using an anchor channel over a first frequency band as the anchor band between an Access Point and a wireless receiver/transmitter unit (WTRU). One or more embodiments may include the WRTU receiving one or more beacons via the anchor channel, where the one or more beacons may provide allocation information for allocating a supplementary channel on a second frequency band as a supplementary band that may be different from the first frequency band. Embodiments also contemplate establishing the supplementary channel over the supplementary band using the allocation information provided in the one or more beacons. Embodiments also contemplate exchanging data over the established supplementary channel on the supplementary band.

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Номер записи: 78

28-03-2013 дата публикации

BASE STATION APPARATUS, MOBILE TERMINAL APPARATUS AND COMMUNICATION CONTROL METHOD

Номер: US20130077576A1

Автор: Abe Tetsushi, Jaturong Sangiamwong, Miki Nobuhiko, Nagata Satoshi

Принадлежит: NTT DOCOMO, INC.

To partially suppress interference to control channels of a pico-cell from a base station apparatus of a macro-cell and enable assignment of user data to a subframe besides the same subframe using a part of control channels with interference suppressed thereto, a base station apparatus disposed in a second system having a system band comprised of a plurality of component carriers for sharing at least a part of a frequency band with a first system having a macro-cell (C) and covering a pico-cell (C) is configured to generate a carrier indicator for indicating another component carrier to which user data is assigned besides the same component carrier on a control channel of the component carrier, while indicating another subframe to which user data is assigned besides the same subframe on the downlink control channel. 1. A base station apparatus in a second system having a system band comprised of a single or a plurality of base frequency blocks , for sharing at least a part of a frequency band with a first system having a large-scale cell and covering a small-scale cell , comprising:an indication information generating section configured to generate indication information, assigned individually to the base frequency blocks constituting the system band of the second system, indicating another subframe to which user data is assigned besides the same subframe on a downlink control channel; anda transmission frame generating section configured to generate a transmission frame including the indication information.2. The base station apparatus according to claim 1 , wherein the indication information indicates another subframe that does not overlap a blank period of a transmission frame of the first system on a control channel of a subframe that overlaps the blank period provided in the transmission frame of the first system.3. The base station apparatus according to claim 1 , wherein the indication information is associated with the number of subframes between the ...

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Номер записи: 79

28-03-2013 дата публикации

METHOD AND SYSTEM FOR FACILITY LOCATION OPTIMIZATION

Номер: US20130079024A1

Автор: Procopiuc Cecilia M.

Принадлежит: AT&T INTELLECTUAL PROPERTY II, L.P.

Systems and methods for optimization of facility locations are disclosed, for example, wireless telecommunications facility locations. Among a plurality of cluster points, corresponding to wireless customers, optimal locations are determined for a predetermined number of cluster centers, each cluster center having a predetermined cluster radius that defines a cluster area. Among a plurality of cluster points, optimal facility locations are determined for a variable number of cluster centers, each cluster center having a minimum acceptable economic value. 1. A system , comprising:a memory to store computer-executable instructions; and selecting a first set of cluster center locations corresponding to a predetermined number of cluster centers to facilitate identifying a set of cluster center locations associated with an overall clustering indicating a defined profit in clustering a subset of a plurality of cluster points, wherein the predetermined number of cluster centers have respective predetermined cluster radii defining respective areas, and the set of cluster center locations is associated with a communication network environment;', 'defining a first cluster area based on the respective areas of the predetermined number of cluster centers;', 'determining a first value corresponding to cluster points, of the plurality of cluster points, that are within the first cluster area;', 'selecting the subset of the plurality of cluster points using a weighted randomization of the plurality of cluster points, based on the first value;', 'wherein the subset of the plurality of cluster points has a defined probability level of having a clustering of cluster points that is determined to satisfy a condition with respect to a defined portion of the overall clustering, based on the weighted randomization; and', 'selecting a subset of cluster centers that correspond to the subset of the cluster points and comprise wireless antennas, wherein the subset of cluster centers define a ...

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Номер записи: 80

04-04-2013 дата публикации

Method of getting energy level of communication channel

Номер: US20130084909A1

Автор: Dae Gil Yoon

Принадлежит: Samsung Electro Mechanics Co Ltd

Provided is a method of getting an energy level of a communication channel including skipping two channels and performing energy detection scanning when an energy level higher than an energy threshold of a wireless LAN network is detected during a process of sequentially performing the energy detection scanning according to channels, reducing a time consumed for the energy detection scanning.

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Номер записи: 81

11-04-2013 дата публикации

METHOD AND APPARATUS FOR INTEGRATING DIFFERENT RADIO ACCESS TECHNOLOGIES USING CARRIER AGGREGATION

Номер: US20130088983A1

Автор: Castor Douglas R., Kaur Samian, Pietraski Philip J., Pragada Ravikumar V., Roy Arnab

Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus are described for integrating third generation partnership project (3GPP) radio access network and an Institute of Electrical and Electronics Engineers (IEEE) 802.11 radio access technologies (RATs). This may be done at a medium access control (MAC) layer or below the MAC layer. For example, a wireless transmit/receive unit (WTRU) for multiple radio access technology (RAT) integration includes a 3GPP RAT including a radio resource control (RRC) entity, an IEEE 802.11 RAT including a medium access control (MAC) management entity, and a session management entity (SME) for mapping between the RRC entity and the MAC management entity. Combined, hybrid and split versions of logical channel prioritization (LCP) are described. The features of an LTE access stratum-service management entity (AS-SME) are also described. 1. A system for inter-radio access technology (RAT) integration , comprising:a first base station configured to operate in a first RAT;a second base station configured to operate in a second RAT; andan interface configured to exchange control signals between the first base station and the second base station on a condition that the first base station and second base station are non co-located, wherein the control signals include management, co-ordination and configuration signals.2. The system of claim 1 , wherein the first base station includes a radio resource control (RRC) entity for exchanging the control signals.3. The system of claim 1 , wherein the second base station is configured to transmit a RRC connection request message to the first base station that includes at least one of an indicator for data plane resources claim 1 , capabilities claim 1 , and configuration parameters.4. The system of claim 1 , wherein the control signals exchanged are for at least one of authentication and security.5. The system of claim 1 , wherein the first RAT is a third generation partnership project (3GPP) radio access network and the second RAT ...

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Номер записи: 82

11-04-2013 дата публикации

INTER-CELL INTERFERENCE COORDINATION IN WIRELESS NETWORKS

Номер: US20130090120A1

Автор: Fakoorian Ali, Venkatraman Shankarakrishnan

Принадлежит: POWERWAVE TECHNOLOGIES, INC.

Systems and method for allocation and optimization of sub-carriers by a plurality of cells based, at least in part, on aspects of user equipment utilizing the wireless communication network. A wireless network management component classifies user equipment with at least a portion of the wireless communication network as cell edge user equipment or cell central user equipment. Based on the classification of the user equipment, the management component determines resource requirements for the cells. The resource requirements can include the designation of sub-carriers as primary sub-carriers and associated power levels based on the designation for the group of cells in the wireless network. Additionally, each cell within the wireless network can utilize the designation of sub-carriers and association of power levels in configuring communications with user equipment. 1. A method of managing wireless network components , the wireless network components include a set of cells , wherein each cell can be characterized into two or more sectors and wherein the wireless network can be characterized as a set of sectors based on the two or more sectors in the set of cells , the method comprising:characterizing a plurality of user equipment in the set of sectors as either cell edge user equipment or cell central user equipment;determining a set of power metrics for subcarriers associated with a spectrum of available bandwidth, the set of power metrics determined, at least in part, on the characterization of the plurality of user equipment;modifying the set of power metrics based on interference associated with adjacent sectors;prioritizing a set of sectors based on the number of cell edge user equipment attributed to each of the set of sectors; andfor each sector in the set of sectors, dynamically assigning the subcarriers associated with the spectrum of available bandwidth based on subcarriers previously associated with adjacent sectors.2. The method as recited in claim 1 , ...

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Номер записи: 83

11-04-2013 дата публикации

Communication device, service-area adjusting method, and mobile communication system

Номер: US20130090128A1

Автор: Toshiro Sawamoto

Принадлежит: Fujitsu Ltd

There are provided a communication device, service-area adjusting method, and mobile communication system capable of accurately executing an optimization algorithm on an actual field. An EMS (a communication device) acquires an index value indicating downstream reception quality of a mobile station in a communication area from the mobile station via a base station in the communication area with respect to each mobile station. Then, the EMS determines whether to start or end the execution of arithmetic processing of a transmission parameter of each base station in the communication area by comparing a value based on at least any of average communication quality between the base station and mobile station in the communication area, throughput, and received power, which is obtained based on an index value of each mobile station, with a reference value.

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Номер записи: 84

11-04-2013 дата публикации

METHOD OF AVOIDING IDC INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME

Номер: US20130090142A1

Автор: Chun Sungduck, Jung Sunghoon, Lee Jaewook, Lee Youngdae, Park Sungjun, Yi Seungjune

Принадлежит: LG ELECTRONICS INC.

Disclosed is a method of transmitting, by a terminal, IDC (In-Device Coexistence) interference information to a base station, according to the present invention. Specifically, the invention comprises the steps of: receiving quality measurement configuration information from the base station; measuring quality using the information when operations of one or more second communication modules coexisting in the terminal are sensed; setting a frequency used in the measuring quality as a disabled frequency due to the IDC interference when the measured quality is less than a threshold value; and transmitting information about the disabled frequency to the base station. 112-. (canceled)13. A method of communicating with a network of a mobile communication system by a user equipment (UE) , the method comprising:receiving configuration information from the network by the UE; andupon detecting an in-device coexistence (IDC) condition by the UE according to the configuration information, initiating a transmission of information on the detected IDC condition to the network by the UE,wherein the information on the detected IDC condition comprises frequency information.1412. The method of claim , wherein the detected IDC condition is a detected IDC problem.15. The method of claim 14 , wherein the detected IDC problem is a detected IDC frequency interference between at least two devices within the UE.16. The method of claim 13 , wherein the detecting the IDC condition comprises detecting a change in the IDC condition.17. The method of claim 15 , wherein the IDC problem is detected while the UE is in a radio resource control (RRC) connected state.18. The method of claim 14 , wherein the information on the detected IDC condition comprises the frequency information and other information related to the detected IDC problem.19. The method of claim 13 , wherein the configuration information comprises one of IDC monitoring information and IDC reporting information.20. The method of claim ...

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Номер записи: 85

25-04-2013 дата публикации

METHOD FOR DETERMINING PLACEMENT OF INTERNET TAPS IN WIRELESS NEIGHBORHOOD NETWORKS

Номер: US20130100818A1

Автор: Chandra Ranveer, Jain Kamal, Mahdian Mohammad, Qiu Lili

Принадлежит: MICROSOFT CORPORATION

Disclosed is a method for determining the placement of ITAPs in wireless neighborhood networks. The method disclosed provides for efficient integration of multi-hop wireless networks with the Internet by placing ITAPs at strategic locations. Initially the method provides for the formulation of the ITAP placement problem under three wireless models. For each model, methods are developed to efficiently place ITAPs in the networks. The methods aim to minimize the number of required ITAPs while guaranteeing users' bandwidth requirements. Next, a fault tolerance version of the placement method is presented that provides bandwidth guarantees in the presence of failures. Finally the methods are extended to take into account variable traffic demands by developing an approximation algorithm to simultaneously optimize ITAP placement based on demands over multiple periods. 1. A method for determining placement locations of access points in a network , the method comprising:(a) accepting connectivity information for the network, the network being a multi-hop wireless mesh network employing a contention-based media access control (MAC) protocol and comprising nodes and links between the nodes, the connectivity information comprising link capacity constraints, node capacity constraints, node demands for flow, and a set of prospective access point locations; [ (I) selecting a test access point, from the set of prospective access point locations, to be added to a set of currently open access points; and', '(II) computing node demands satisfied if the test access point is added to the set of currently open access points;, '(i) iterating through each prospective access point location, in each iteration, '(ii) selecting, as a new access point for the network, the test access point from the set of prospective access point locations having a maximum computed value of the node demands satisfied when opened together with access points in the set of currently open access points;', '(iii) ...

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Номер записи: 86

09-05-2013 дата публикации

Signaling and traffic carrier splitting for wireless communications systems

Номер: US20130114473A1

Автор: Bongyong Song, Edwin C. Park, Olufunmilola O. Awoniyi, Samir Salib Soliman, Soumya Das

Принадлежит: Qualcomm Inc

Methods, systems, and devices for separating signaling data and traffic data onto separate carriers for wireless communications systems are provided. Some embodiments utilize flexible bandwidth that may utilize portions of spectrum that may not be big enough to fit a normal waveform through utilizing flexible waveforms. Flexible bandwidth systems may lead to reduced data rate on the signaling or other channels. Separating the signaling and the data traffic into different flexible bandwidth carriers so that assigned resources can be customized to different traffic patterns may address this issue. In some embodiments, the signaling data is received and/or transmitted over a first carrier separate from any other traffic data. For example, the signaling data may be received and/or transmitted over the first band carrier without any other traffic data. The traffic data and/or network data associated with the signaling data may be received and/or transmitted over a separate, second carrier.

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Номер записи: 87

09-05-2013 дата публикации

METHOD AND APPARATUS FOR COOPERATION IN COGNITIVE RADIO NETWORKS

Номер: US20130114500A1

Автор: Hua Sha, LI JUN, Liu Hang, Wu Mingquan

Принадлежит: THOMSON LICENSING

A method and apparatus are described including competing by a secondary transmitter with a plurality of secondary nodes in a cognitive radio network to become a relay node for a primary transmitter, the secondary nodes being secondary transmitters and secondary receivers, receiving data transmitted by the primary transmitter in a first time slot if the secondary transmitter was successful in the competition, relaying the received data transmitted by the primary transmitter to a primary receiver in a second time slot, transmitting secondary data to a corresponding secondary receiver in a subslot of the second time slot and transmitting the secondary data to the corresponding secondary receiver in a subslot of the first time slot if the secondary transmitter was not successful in the competition and if the corresponding secondary receiver was successful in the competition. 1. A method , said method comprising:competing by a secondary transmitter with a plurality of secondary nodes in a cognitive radio network to become a relay node for a primary transmitter, said secondary nodes being secondary transmitters and secondary receivers;receiving data transmitted by said primary transmitter in a first time slot if said secondary transmitter was successful in said competition;relaying said received data transmitted by said primary transmitter to a primary receiver in a second time slot;transmitting secondary data to a corresponding secondary receiver in a subslot of said second time slot; andtransmitting said secondary data to said corresponding secondary receiver in a subslot of said first time slot if said secondary transmitter was not successful in said competition and if said corresponding secondary receiver was successful in said competition.2. The method according to claim 1 , wherein said secondary transmitter ensures that a signal carrying said secondary data is nullified at said primary receiver by using multiple-in-multiple-out transmission techniques.3. The method ...

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Номер записи: 88

09-05-2013 дата публикации

Method and Apparatus for Deriving Pathloss Estimation Values

Номер: US20130115938A1

Автор: Michael Joseph Flanagan, Mohsen Zadeh-Koochak, Stefan Ulrich Thiel

Принадлежит: Arieso Ltd

A method for deriving pathloss estimation values within a cellular communication network. The method comprises receiving pathloss data obtained from a plurality of wireless communication units located within the cellular communication network, receiving location information corresponding to the plurality of wireless communications units, associating received pathloss data with individual sectors within a coverage area of the cellular communication network based at least partly on the location information for the respective wireless communications unit, and deriving pathloss estimation values for individual sectors within the cellular communication network based at least partly on the received pathloss data.

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Номер записи: 89

09-05-2013 дата публикации

COMMUNICATION CHARACTERISTIC ANALYZING SYSTEM, COMMUNICATION CHARACTERISTIC ANALYZING METHOD, AND COMMUNICATION CHARACTERISTIC ANALYZING PROGRAM

Номер: US20130115961A1

Автор: Miyazaki Hirokazu, Shibayama Kazuhisa, Watamori Hirofusa

Принадлежит: SOFTBANK BB CORP.

[Object] To improve analysis precision of communication characteristic, while minimizing the calculation amount, to determine a local dead area, thereby providing useful information for cell site design. 1. A communication characteristic analysis system , comprising:an area-attribute determination-criterion storage section storing a determination criterion, the determination criterion being used to determine two or more area attributes, the area attribute being of a predetermined area on a map, the area attribute being classified based on object data or statistical data of the area;an analysis-method storage section storing a plurality of local-analysis methods of communication characteristic in relation to the area attributes, respectively;a referential-estimated-value storage section storing an estimated value of communication characteristic (hereinafter, “referential estimated value”) in relation to the area, the referential estimated value being calculated for each predetermined area on the map based on a method different from a plurality of local-analysis methods stored in the analysis-method storage section;an area-attribute determining means for determining an area attribute of an analysis-target area selected from the area based on object data or statistical data, of the area according to the area-attribute determination criterion;a target-building identifying means for receiving a designated building being a target of local analysis (hereinafter, “target building”) out of buildings in the analysis-target area; anda local-analysis means for searching the analysis-method storage section for a local-analysis method in relation to a determined area attribute, for locally analyzing communication characteristic of a target building, for correcting the referential estimated value of an analysis-target area based on the analysis result, and for outputting the corrected value as a communication-characteristic value of a target building.2. The communication ...

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Номер записи: 90

09-05-2013 дата публикации

METHOD AND APPARATUS FOR SECONDARY SHARING

Номер: US20130115964A1

Автор: Irnich Tim, Karlsson Jorgen, Kronander Jonas, Prytz Mikael, Rahman Muhammad Imadur

Принадлежит: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

A node () for a communications system (), arranged to operate as a secondary user of part of a frequency spectrum, comprising a detection unit () for detecting other secondary users () who use all or part of said frequency spectrum and for detecting changes in such other secondary user's usage of their part of the frequency spectrum. The node () also comprises a signaling unit () for signaling to detected other secondary users () that the node () wishes to operate within their frequency spectrum as a secondary user, by means of transmitting interference signals according to a predefined pattern in the frequency spectrum of detected other secondary users. The node also comprises a decision unit () for deciding how the node () should arrange its secondary operation in the frequency spectrum together with detected other secondary users (). 1. A node for a wireless communications system , the node being arranged to operate as a secondary user of at least part of a frequency spectrum , the node comprising:a detection unit configured to detect if one or more other secondary users use all or part of the frequency spectrum and to detect changes in such other secondary user's usage of their part of the frequency spectrum;a signaling unit configured to signal to one or more detected other secondary users that the node wants to operate within the frequency spectrum as a secondary user, wherein the signaling unit performs the signalling by transmitting interference signals according to a predefined pattern in the frequency spectrum of the one or more detected other secondary users; anda decision unit configured to determine how the node should arrange its secondary operation in the frequency spectrum together with detected other secondary users.2. The node of claim 2 , wherein:the detection unit comprises a scanning unit for scanning the frequency spectrum for use by other secondary users and/or a receiver unit for receiving signals from other users which indicate that the ...

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Номер записи: 91

16-05-2013 дата публикации

Method of avoiding interference in a multi-piconet

Номер: US20130121160A1

Автор: Chang-Won Nam, Hyuk-Chin CHANG, Jin-Yong Chung

Принадлежит: SAMSUNG ELECTRONICS CO LTD, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

A wireless device in a first piconet using a first time-frequency code senses interference from a second piconet using a second time-frequency code that is different from the first time-frequency code. The wireless device detects a beacon period of the second piconet. The wireless device reserves at least one medium access slot corresponding to the beacon period of the second piconet among a plurality of medium access slots of the first piconet.

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Номер записи: 92

16-05-2013 дата публикации

Control apparatus, communication system and control method

Номер: US20130122884A1

Автор: Naoyuki Saito

Принадлежит: Fujitsu Ltd

A control apparatus includes a memory, and a processor that executes a procedure stored in the memory, the procedure including, comparing a first index value with a second index value, the first index value indicating a magnitude of a difference between a coverage in an area to which a communication service is provided by a radio base station to be controlled and a first target value, the second index value indicating a magnitude of a difference between a capacity of the communication service in the area and a second target value, and controlling an operation state of the radio base station that varies at least one of the coverage and the capacity so as to decrease a difference between the first and second index value when the result of the comparing indicates that the magnitude of the difference between the first and second index value exceeds a given value.

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Номер записи: 93

16-05-2013 дата публикации

Apparatus and method for providing communication services via television white spaces

Номер: US20130122933A1

Автор: Han-Nah CHOI, Hyung-Min CHANG, Joo-Pyoung CHOI, Won-Cheol LEE

Принадлежит: FOUNDATION OF SOONGSIL UNIVERSITY INDUSTRY COOPERATION

Disclosed herein are an apparatus and method for providing communication services. The apparatus includes a location information acquisition unit, a radio station information acquisition unit, and an offloading unit. The location information acquisition unit acquires information about the current location of the user terminal by sending a location information request message to the user terminal The radio station information acquisition unit requests information about a white space radio station from which the user terminal can receive the communication services by sending the information about the current location of the user terminal to a white space server, and acquires, from the white space server, information about an available white space radio station. The offloading unit sends the information about the available white space radio station to the user terminal, and also sends information about the user terminal to the available white space radio station.

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Номер записи: 94

23-05-2013 дата публикации

INFRASTRUCTURE FOR LOCATION DISCOVERY

Номер: US20130130701A1

Автор: Potkonjak Miodrag

Принадлежит: EMPIRE TECHNOLOGY DEVELOPMENT LLC

Techniques are generally described for determining locations of a plurality of communication devices in a network. In some examples, methods for creating a location discovery infrastructure (LDI) for estimating locations of one or more of a plurality of communication nodes may comprise one or more of determining a plurality of locations in the terrain to place a corresponding plurality of beacon nodes, determining a plurality of beacon node groups for the placed beacon nodes, and determining a schedule for the placed beacon nodes to be active. Additional variants and embodiments are also disclosed. 1. A method comprising:grouping, by the computing device, one or more of the plurality of communication nodes into a plurality of communication node groups, wherein communication nodes in individual communication node groups of the plurality of communication node groups are in proximity;selecting, by the computing device, a representative communication node from the individual communication node groups, the selected representative communication node; anddetermining, by the computing device, at least one of a number or location of a beacon node to be placed, based at least in part on an individual representative communication node receiving a signal from a plurality of beacon nodes;wherein the selecting comprises formulating and solving an objective function comprising the plurality of communication nodes to be divided into a plurality of communication node groups.2. The method of claim 1 , wherein the determining is further based at least in part on reducing a likelihood of location discovery error for discovering locations of one or more of the plurality of communication nodes using the placed beacon node.3. The method of claim 1 , further comprising determining claim 1 , by the computing device claim 1 , a schedule for the placed beacon node to be active claim 1 , based at least in part on a waiting time of individual communication nodes to receive a location ...

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Номер записи: 95

30-05-2013 дата публикации

Access point having multichannel and multi transmission power, cell formation method

Номер: US20130136018A1

Автор: Jong-Hwa Shin, Weon-Yong JOO, Yang-Seok Jeong

Принадлежит: KT Corp

Described embodiments provide an access point for forming multiple service zones within a corresponding cell. The access point may include a first access point module and a second access point module. The first access point module may be configured to form a first service zone for first user equipment located at a center area of the cell. The second access point module may be configured to form a second service zone for second user equipment located at an edge area of the cell.

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Номер записи: 96

30-05-2013 дата публикации

Method and apparatus for allocating spectrum

Номер: US20130137445A1

Автор: Dong Zhou, Feng Li, Kaibo Tian, Nan Zhao, Yan Li

Принадлежит: ZTE Corp

A method and an apparatus for allocating spectrums are provided in the disclosure. The method includes: reconfigurable spectrums for a target group domain are calculated, wherein said reconfigurable spectrums contain one or more of a dedicated spectrum, a reusable spectrum and a loanable spectrum; during the system reconfiguration, spectrums are allocated to cells of the target group domain in a non-overlap region after spectrums are allocated to cells of the target group domain in an overlap region according to the reconfigurable spectrums. By use of the disclosure, the spectrum allocation can be implemented during the system reconfiguration, and interference can be effectively suppressed.

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Номер записи: 97

30-05-2013 дата публикации

Correlation of Collected Mobile Terminal Based Measurement Data and Positioning Data

Номер: US20130137460A1

Автор: Gyula Bodog, Malgorzata Tomala

Принадлежит: NOKIA SIEMENS NETWORKS OY

A network control element receives position information data including a trace session identification parameter, the position information data including information about the position of a mobile terminal, and measurement data including the trace session identification parameter are received. The position information data is correlated with the measurement data based on the trace session identification parameter.

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Номер записи: 98

06-06-2013 дата публикации

CELL CANCELLATION LIST AND AN ADAPTIVE RADIO LINK FAILURE TRIGGER FOR IMPROVED SPECTRUM SHARING

Номер: US20130142116A1

Автор: Gaal Peter, Prakash Rajat

Принадлежит: QUALCOMM INCORPORATED

A cell cancellation method for improved spectrum sharing is provided. The cell cancellation method includes detecting interference from a cell. The method also includes cancelling a signal from the cell when a physical cell identifier corresponding to the cell is indicated in a cancellation list. An adaptive radio link failure (RLF) trigger method for improved spectrum sharing is disclosed. The RLF trigger method includes detecting interference from a cell. The RLF trigger method also includes adjusting a radio link failure trigger according to a cell identity of an interferer associated with the cell. 1. A method of wireless communication , comprising:detecting interference from a cell; andcancelling a signal from the cell when a physical cell identifier corresponding to the cell is indicated in a cancellation list.2. The method of claim 1 , in which:the detecting includes detecting, by a user equipment, interference from a base station associated with the cell; andthe cancelling includes cancelling signals from the base station when the physical cell identifier from the cancellation list indicates that an operator of the base station is different from an operator of the user equipment.3. The method of claim 1 , further comprising:receiving a blacklist as the cancellation list; andin which the cancelling includes cancelling the signal from a base station associated with the cell when the physical cell identifier corresponding to the base station is identified from the blacklist.4. The method of claim 1 , in which the detecting is performed by a user equipment claim 1 , and in which an operator of the cell corresponding to the physical cell identifier is different from an operator of the user equipment.5. A method of wireless communication within a user equipment claim 1 , comprising:detecting interference from a cell; andadjusting a radio link failure trigger according to a cell identity of an interferer associated with the cell.6. The method of claim 5 , in which ...

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Номер записи: 99

06-06-2013 дата публикации

Adaptive Broadband Platforms And Methods Of Operation

Номер: US20130143581A1

Автор: Erling J. Pedersen, Roc A. Lastinger

Принадлежит: INNOVATIVE WIRELESS SWEDEN AB

A subscriber platform for broadband communication, according to various aspects of the present invention, includes an antenna, a plurality of transceivers, and a processor. The antenna supports communication via a plurality of directional beams. The plurality of frequency agile transceivers operate simultaneously, each transceiver being coupled to the antenna for communication via a respective directional beam. The processor is coupled to the plurality of transceivers. And, the transceivers are coupled to the antenna to communicate data among the directional beams as directed by the processor, communication including directional diversity and frequency diversity.

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Номер записи: 100