РЕГУЛИРОВАНИЕ МОЩНОСТИ ПЕРЕДАЧИ ПО ИНФОРМАЦИОННОМУ КАНАЛУ ПРЯМОЙ ЛИНИИ СВЯЗИ

Изобретение относится к сетям радиосвязи. В частности, к способам и устройствам регулирования мощности передачи. Мощность передачи по прямой линии связи в абонентский терминал в составе системы радиосвязи, содержащей множество лучей, регулируют посредством того, что определяют исходный уровень мощности, Pbaseline, по принятому действующему отношению сигнала к шуму (SNR) в контрольном канале; определяют пороговое значение мощности, Pmargin, по выявленной чувствительности к помехам; определяют поправку уровня мощности, Pcorrection, по выявленному коэффициенту пакетных ошибок (PER); и устанавливают Ptransmit, по Pbaseline, Pmargin И Pcorrection. Например, Ptransmit МОЖНО установить на уровень мощности, который по существу равен сумме Pbaseline, Pmargin и Pcorrection. Определение каждой компоненты, Pbaseline, Pmargin и Pcorrection, можно выполнять с помощью независимо действующих цепей обратной связи или процессов. Техническим результатом является ослабление помех при одновременной экономии ...

СОПОСТАВЛЕНИЕ РЕСУРСОВ УПРАВЛЕНИЯ ДЛЯ БЕСПРОВОДНОЙ СИСТЕМЫ СВЯЗИ

Описаны способы, предназначенные для посылки информации управления в беспроводной системе связи. Техническим результатом является создание эффективности посылки информации управления. Для этого сегмент управления может включать в себя мозаичные элементы, а каждый мозаичный элемент может включать в себя множество блоков передачи. Некоторое количество ресурсов управления может быть определено и сопоставлено блокам передачи для сегмента управления. Для симметричного сопоставления может быть сформировано множество наборов ресурсов управления, и каждая группа из L последовательных наборов из S ресурсов управления может быть сопоставлена S блокам передачи в одном и том же местоположении в L мозаичных элементах. Для локализованного сопоставления каждое множество из S ресурсов управления может быть сопоставлено кластеру из S смежных блоков передачи в одном мозаичном элементе. Для распределенного сопоставления каждый ресурс управления может быть сопоставлен одному блоку передачи в одном мозаичном ...

УПРАВЛЕНИЕ ЦИФРОВОЙ И АНАЛОГОВОЙ МОЩНОСТЬЮ ТЕРМИНАЛА ДОСТУПА OFDMA/CDMA

Изобретение относится к системам беспроводной связи, а именно - к управлению мощностью многоканального терминала доступа. Технический результат - осуществление управления уровнем мощности для терминала доступа в системе беспроводной связи, которая использует, по меньшей мере, два сигнала с модуляциями. Для этого мощностью управляют после того, как разрешение доступа принимают в ответ на тестовое сообщение доступа, до перехода мобильного устройства в устойчивое состояние. Опорную мощность непрерывно контролируют и установки усилителя мощности изменяют только тогда, когда опорная мощность изменяется. Цифровое усиление канала передачи данных обратной линии связи регулируют относительно опорного уровня мощности. 5 н. и 32 з.п. ф-лы, 1 табл., 10 ил.

СПОСОБ И УСТРОЙСТВО ДЛЯ ПРЕДСКАЗАНИЯ ПРЕДПОЧТИТЕЛЬНЫХ ВРЕМЕННЫХ ИНТЕРВАЛОВ ПЕРЕДАЧИ ДОПОЛНИТЕЛЬНОГО КАНАЛА, ИСПОЛЬЗУЮЩИЕ ИЗМЕРЕНИЯ МОЩНОСТИ ПЕРЕДАЧИ ОСНОВНОГО КАНАЛА

Изобретение относится к технике связи. Технический результат состоит в передаче неречевых данных совместно с передачей речевых данных. Для этого временной интервал, отражающий предпочтительный уровень мощности и скорость передачи данных для передачи на дополнительном канале неречевых данных, выбирают на основе уровней мощности передачи для речевых данных, передаваемых на основном канале от базовой станции к удаленной станции. Предпочтительный временной интервал передачи выбирают без информации передачи сообщений удаленной станции в базовую станцию относительно информации о частотном канале или о помехах для дополнительного канала. 6 н. и 5 з.п. ф-лы, 10 ил.

СИСТЕМА И СПОСОБ ДЛЯ ОПРЕДЕЛЕНИЯ МОЩНОСТИ ТРАФИКА К ПИЛОТ-СИГНАЛУ В ПЕРЕДАЧЕ С МНОЖЕСТВЕННЫМИ ВХОДАМИ И МНОЖЕСТВЕННЫМИ ВЫХОДАМИ ВОСХОДЯЩЕЙ ЛИНИИ СВЯЗИ

Изобретение относится к беспроводной связи. Техническим результатом является увеличение пропускной способности и спектральной эффективности для передач восходящей линии связи. Способы и устройства обеспечены для передач MIMO восходящей линии связи в системе беспроводной связи. В частности, запланированная мощность передачи восходящей линии связи распределяется между первичным потоком, включающим в себя E-DPDCH, и вторичным потоком, включающим в себя S-E-DPDCH. В частности, соотношение между мощностью E-DPDCH и первичным пилот-каналом DPCCH, а также отношение между мощностью S-E-DPCCH и неусиленной мощностью S-DPCCH соответствует первому отношению мощности сигнала трафика к пилот-сигналу. Дополнительно размер транспортного блока для первичного транспортного блока, обеспеченного по E-DPDCH, определяется на основании первого отношения мощности сигнала трафика к пилот-сигналу, в то время как размер транспортного блока для вторичного транспортного блока, обеспеченного по S-E-DPDCH, определяется ...

ТЕРМИНАЛ МОБИЛЬНОЙ СВЯЗИ И СИСТЕМА РАДИОСВЯЗИ

Изобретение относится к радиосвязи. Технический результат - улучшение качества приема мультимедийных данных. Для этого терминал мобильной связи разделяет множество многолучевых сигналов, связанных с радиосигналами, передаваемыми множеством базовых станций с использованием канала S-CCPCH, на группы по базовым станциям, т.е. по источникам передачи, выполняет оптимальное сложение множества многолучевых сигналов, связанных с одной и той же базовой станцией, являющейся источником передачи, в составной сигнал, декодирует этот составной сигнал и выбирает из декодированных составных сигналов составной сигнал, имеющий хороший результат декодирования. 5 н. и 2 з.п. ф-лы, 16 ил.

СПОСОБ УПРАВЛЕНИЯ МОЩНОСТЬЮ ПЕРЕДАЧИ И СИСТЕМА МОБИЛЬНОЙ СВЯЗИ

Заявлен способ управления мощностью передачи. Техническим результатом является то, что расширенные каналы указателя квитирования смешанного автоматического запроса повторения (Е-HICH) могут достигнуть мобильной станции, даже когда она выполняет мягкую передачу обслуживания. Для этого способ управления мощностью передачи для управления мощностью передачи E-HICH для пользовательских данных восходящей линии связи, передаваемого от соты, управляемой базовой станцией радиосвязи, на мобильную станцию, включает в себя этапы, на которых указывают с помощью контроллера радиосети, по меньшей мере, одной базовой станции радиосвязи, управляющей первой сотой и второй сотой, смещения между мощностью передачи E-HICH и мощностью передачи выделенного физического канала (DPCH), когда мобильная станция осуществляет мягкую передачу обслуживания с первой и второй сотой; определяют на первой соте мощность передачи первого E-HICH на основании указанного смещения, и передают первый E-HICH на мобильную станцию ...

СПОСОБ ОБНОВЛЕНИЯ ПАРАМЕТРА ЛИНИИ РАДИОСВЯЗИ В СИСТЕМЕ МОБИЛЬНОЙ СВЯЗИ

... 1. Способ обновления параметра линии радиосвязи для системы, имеющей центр управления и множество узлов радиосвязи, содержащий следующие этапы: принимают решение об обновлении линии радиосвязи в узле радиосвязи; и инициируют обновление параметра линии радиосвязи от упомянутого узла радиосвязи до центра управления. 2. Способ по п.1, в котором центром управления является контроллер сети радиосвязи (КСР). 3. Способ по п.1, в котором узлом радиосвязи является узел "Б". 4. Способ по п.1, в котором параметром линии радиосвязи является параметр, связанный с высокоскоростным пакетным доступом по нисходящей линии связи (ВПДН). 5. Способ по п.1, в котором узел радиосвязи инициирует обновление параметра путем передачи информации о параметре в центр управления. 6. Способ по п.5, в котором информация о параметре содержит, по меньшей мере, одни из следующих данных: указатель качества канала (УКК) в цепи обратной связи, коэффициент повторения сообщений о подтверждении приема/сообщений о неподтверждении ...

УПРАВЛЕНИЕ МОЩНОСТЬЮ ДЛЯ УСЛУГ СВЯЗИ ОТ ОДНОЙ ТОЧКИ К МНОЖЕСТВУ ТОЧЕК В СИСТЕМАХ СВЯЗИ

... 1. Способ управления мощностью для услуг связи от одной точки к множеству точек в системе связи, включающий в себя этапы определения секторов, область покрытия которых содержит активные абонентские станции, принадлежащие группе, и передачу команд управления мощностью обратной линии связи по совместно используемому каналу прямой линии связи из определенных секторов. 2. Способ по п.1, отличающийся тем, что этап передачи команд управления мощностью обратной линии связи по совместно используемому каналу прямой линии связи из определенных секторов включает в себя введение путем прокалывания команд управления мощностью обратной линии связи в совместно используемый канал прямой линии связи. 3. Способ по п.1, отличающийся тем, что этап передачи команд управления мощностью обратной линии связи по совместно используемому каналу прямой линии связи из определенных секторов включает в себя введение команд управления мощностью обратной линии связи в совместно используемый канал прямой линии связи. 4.

БАЗОВАЯ СТАНЦИЯ, МОБИЛЬНАЯ СТАНЦИЯ И СПОСОБ УПРАВЛЕНИЯ МОЩНОСТЬЮ ПЕРЕДАЧИ

... 1. Базовая станция, содержащая: ! средства определения мощности передачи мобильной станции на основе качества приема пилотного канала в восходящей линии связи; ! средства передачи на мобильную станцию информации относительно определенной мощности передачи; и ! средства приема канала управления, переданного мобильной станцией в соответствии с полученной информацией. ! 2. Базовая станция по п.1, отличающаяся тем, что выполнена с возможностью определения относительной величины мощности, на которую мобильной станции необходимо изменить мощность своей передачи, на основе соотношения между качеством приема пилотного канала в восходящей линии связи и качеством приема, которому должен удовлетворять канал управления. ! 3. Базовая станция по п.1, отличающаяся тем, что выполнена с возможностью определения абсолютной величины мощности, до которой мобильной станции необходимо изменить мощность своей передачи, на основе соотношения между качеством приема пилотного канала в восходящей линии связи и значением ...

СОПОСТАВЛЕНИЕ РЕСУРСОВ УПРАВЛЕНИЯ ДЛЯ БЕСПРОВОДНОЙ СИСТЕМЫ СВЯЗИ

... 1. Устройство беспроводной связи, содержащее ! по меньшей мере один процессор, сконфигурированный для определения блоков передачи, доступных для канала управления, из всех блоков передачи для сегмента управления, в котором посылается сигнал канала управления, и исключая блоки передачи, недоступные для канала управления, определения набора блоков передачи для пакета из множества блоков передачи, доступных для канала управления, и посылки или приема пакета через набор блоков передачи, и ! память, связанную по меньшей мере с одним процессором. ! 2. Устройство по п.1, в котором набор блоков передачи для пакета распределен по блокам передачи, доступным для канала управления. ! 3. Устройство по п.1, в котором блоки передачи, недоступные для канала управления, содержат блоки передачи, используемые для пилот-сигнала, других каналов управления, других передач, или их комбинацию. ! 4. Устройство по п.1, в котором сегмент управления содержит по меньшей мере один мозаичный элемент, причем каждый мозаичный ...

Endgerät für mobile Kommunikation und Funkkommunikationsanordnung

Power control for transmission of a discovery signal for a specific communication mode

Power control for transmission of a discovery signal in a communication network (Figure 1), in particular for a D2D (Device-to-Device) discovery signal. A network control element, such as an enodeB (10, Figure 1), configures transmission power parameters usable for determining a transmission power to be set by a communication device, such as a UE (20, Figure 1), for transmitting a discovery signal for a specific communication mode. The configured transmission power parameters are sent from the enodeB to the UE by means of an information element, such as a dedicated system information block (SIB) S30. In the UE, the transmission power parameters are used to set the transmission power for transmitting the discovery signal in the specific communication mode S50. In a further embodiment the discovery signal may itself comprise a power information element indicating whether or not, and possibly how, the transmission power used for transmitting the discovery signal differs from a common transmission ...

Mobile communications

Communication system and method of administering connections therein

WAS BASED TRANSMITTER ACHIEVEMENT CONTROL

PROCEDURE FOR THE LEISTUNGSSTEUERUNG OF THE TFCI OF DATA FIELD

TRANSMITTING POWER REGULATION PROCEDURE FOR HS-SCCH CHANNEL IN A MOBILE COMMUNICATION SYSTEM

POWER ADJUSTMENT FOR COMMUNICATION SYSTEMS WITH SNAPPING COMMON USED CHANNELS

PROCEDURE AND ARRANGEMENT REGARDING COMMUNICATIONS NETWORKS

PROCEDURE AND DEVICES FOR FAST DESCENT INFORMATION OF THE UPLINK FALSE SYNCHRONISATION

DEVICE AND ALLOCATION PROCEDURE FOR MAKING COMMUNICATION POSSIBLE IN A RADIO COMMUNICATION SYSTEM, WHICH MAKES DATA COMMUNICATION AVAILABLE WITH SEVERAL DATA RATES

DYNAMIC CURRENT ALLOCATION FOR UNICAST MULTICASTÜBERLAGERUNGEN IN WIRELESS BROADCAST SYSTEMS

POWER ADJUSTMENT FOR SERVICES OF POINT OF POINT TO HONOUR IN COMMUNICATION SYSTEMS

TRANSMITTING POWER LEVEL ESTIMATION

WAS BASED TRANSMITTER ACHIEVEMENT CONTROL

WAS BASED TRANSMITTER ACHIEVEMENT CONTROL

WAS BASED TRANSMITTER ACHIEVEMENT CONTROL

WAS BASED TRANSMITTER ACHIEVEMENT CONTROL

WAS BASED TRANSMITTER ACHIEVEMENT CONTROL

WAS BASED TRANSMITTER ACHIEVEMENT CONTROL

WAS BASED TRANSMITTER ACHIEVEMENT CONTROL

WAS BASED TRANSMITTER ACHIEVEMENT CONTROL

WAS BASED TRANSMITTER ACHIEVEMENT CONTROL

WAS BASED TRANSMITTER ACHIEVEMENT CONTROL

WAS BASED TRANSMITTER ACHIEVEMENT CONTROL

POWER CONTROL FOR COMMUNICATIONS SYSTEMS UTILIZING HIGH SPEED SHARED CHANNELS

Power control method and apparatus using control information in mobile communication system

Power control appparatus and method for a W-CDMA communication system employing a high-speed downlink packet access scheme

METHOD AND SYSTEM FOR CONTROLLING TRANSMISSION POWER OF A DOWNLINK SIGNALING CHANNEL BASED ON ENHANCED UPLINK TRANSMISSION FAILURE STATISTICS

POWER CONTROL FOR COMMUNICATIONS SYSTEMS UTILIZING HIGH SPEED SHARED CHANNELS

A system, components and methods provide controlled transmitter power in a wireless communication system in which both dedicated and shared channels are utilized. A network unit preferably has a receiver (16) for receiving UL user data from WTRUs on UL DCHs and at least one UL SCH and a processor (36) for computing target metrics for UL DCHs based on the reception of signals transmitted by a WTRU on an UL DCH associated with an UL SCH usable by the WTRU. A shared channel target metric generator is provided that is configured to output a respective UL SCH target metric derived from each computed UL DCH target metric.

WIRELESS COMMUNICATION METHOD AND APPARATUS FOR GENERATING A SERVING GRANT BASED ON A RECEIVED RELATIVE GRANT

METHOD AND APPARATUS FOR ADAPTIVE CARRIER ALLOCATION AND POWER CONTROL IN MULTI-CARRIER COMMUNICATION SYSTEMS

An apparatus and process for allocating carriers in a multi-carrier system is described. In one embodiment, the process comprises determining a location (E, D, C, B, A; fig. 6) of a subscriber (520) with respect to a base station (510), selecting carriers from a band of carriers to allocate to the subscriber (520) according to the location of the subscriber with respect to the base station (510), and allocating selected carriers to the subscriber (520).

COMMUNICATIONS SYSTEM AND METHOD OF ADMINISTERING CONNECTIONS THEREIN

A communication system (10, 68) includes a plurality of different, spectrally separated air-interfaces providing different services from co-located base sites (70-76). One of these air-interfaces, which may be CDMA, operates a universal frequency-re-use pattern across multiple cells (80-88, 90), whereas other air-interfaces, such as GSM, have carrier frequencies that a cell re-use pattern. A subscriber unit (12-16) within the system (10-68) monitors an interference environment and path loss of at least some of the various different services to infer propagation conditions that are likely to be experienced within a spread spectrum service supported by the universal frequency re-use pattern. Armed with an assessment of fade (82-86) condition within the system as a whole, implied by time and path loss from broadcast signals from different services, the subscriber unit can regulate and control its power transmission. Spread spectrum communication to a distant base station can be safe in the ...

REVERSE LINK CHANNEL ARCHITECTURE FOR A WIRELESS COMMUNICATION SYSTEM

A channel structure and mechanisms that support effective and efficient allocation and utilization of the reverse link resources. In one aspect, mechanisms are provided to quickly assign resources (e.g., a supplemental channel) as needed, and to quickly de-assign the resources when not needed or to maintain system stability. The reverse link resources may be quickly assigned and de-assigned via short messages (412, 418) exchanged on control channels on the forward and reverse links. In another aspect, mechanisms are provided to facilitate efficient and reliable data transmission. A reliable acknowledgment/negative acknowledgment scheme and an efficient retransmission scheme are provided. Mechanisms are also provided to control the transmit power and/or data rate of the remote terminals to achieve high performance and avoid instability.

APPARATUS AND METHOD FOR DETECTING A POWER RATIO BETWEEN A TRAFFIC CHANNEL AND A PILOT CHANNEL IN A MOBILE COMMUNICATION SYSTEM

An apparatus and method for detecting a power ratio between a traffic channel and a pilot channel in a mobile communication system. The apparatus is operable to generate a second signal by performing channel estimation using a second channel signal, and generate a first signal by channel-compensating the first channel signal using the second signal. The apparatus is further operable to generate absolute values of symbols constituting the first signal, select absolute values in a predetermined length after sorting the absolute values in magnitude order, calculate an average value of the selected absolute values, calculate a square of an absolute value of the second signal, and generate the power ratio using a ratio of the average value to the square of the absolute value of the second signal.

TRANSMISSION POWER LEVEL ESTIMATION

A model for noise rise of users in relation to an interference measure, a pathloss and a desired signal to interference ratio is provided. For a selected user, a pathloss, an interference measure and a desired signal to interference ratio is determined. A noise rise for the selected user is determined using the determined interference measure, pathloss, desired signal to interference ratio and the noise rise model. The selected user transmission power level is estimated using the determined noise rise.

OUTER-LOOP POWER CONTROL FOR WIRELESS COMMUNICATION SYSTEMS

... ²²²Systems and methods for controlling power in a wireless communication system ²having multiple reverse-link channels. One embodiment comprises adjusting ²power levels of a first set of channels and a corresponding pilot channel ²while maintaining a set traffic-to-pilot (T/P) ratio between them, and ²adjusting T/P ratios for one or more remaining channels independently of the ²power level of the pilot channel. A base station determines whether frames ²received on the first set of channels contain errors and sends messages to a ²mobile station to increment or decrement the power levels, respectively, if ²the frames do or do not contain errors. T/P ratios of the additional channels ²are adjusted by determining whether frames received on the additional channels ²contain errors, incrementing or decrementing the T/P ratios appropriately, and ²transmitting the T/P ratios to the mobile station, which controls the ²transmission parameters for the respective channels in accordance with the ²received ...

UNIFIED DESIGN AND CENTRALIZED SCHEDULING FOR DYNAMIC SIMO, SU-MIMO AND MU-MIMO OPERATION FOR RL TRANSMISSIONS

Systems and methods facilitate pilot signal design, power control, data r ate determination, and channel assignment in the reverse link of a wireless communication system for dynamic scheduling and joint operation in SIMO, SU- MIMO, and MU-MIMO. Pilot signal is based on periodic transmissions of multip le sounding reference sequences for channel estimation. Power control is bas ed on a reference signal at a predetermined power spectral density (PSD) lev el, and on an offset PSD determined and signaled based on an antenna that tr ansmits the reference signal, other cell interference, and power amplifier h eadroom. PSD levels for SIMO/MIMO data transmissions are determined based on channel estimates and the predetermined PSD and offset PSD. Such data PSD l evels are employed to generate data rates, and to dynamically schedule data streams for communication. Communication resources are conveyed through a ch annel assignment with an overhead that depends on the maximum multiplexing o rder of ...

TOTAL REMAINING POWER ESTIMATION IN CARRIER AGGREGATION

A user equipment (UE), comprising at least one component configured to send power headroom (PH) information for each of a plurality of component carriers (CCs) of a carrier aggregation, CC specific configured maximum power information for the CCs, and UE configured maximum power information, wherein the PH information for each of the CCs, the CC specific configured maximum power information for the CCs, and the UE configured maximum power information allow the access device to estimate a total remaining power for the UE.

COMMUNICATION SYSTEM PROVIDING CONTEXT-BASED MOBILE WIRELESS COMMUNICATIONS DEVICE POWER CONSUMPTION MANAGEMENT AND RELATED METHODS

A communication system may include a plurality of near-field communication (NFC) sensors each associated with a respective location, and a mobile wireless communications device(s) switchable among a plurality of different power consumption modes. The mobile wireless communications device(s) may include a portable housing, an NFC circuit carried by the housing and configured to establish NFC communications with at least one of the NFC sensors when in proximity therewith, and a plurality of different wireless communications circuits carried by the housing. The mobile wireless communications device(s) may further include a controller carried by the housing and coupled to the NFC circuit and the different wireless communications circuits which may be configured to switch to a given power consumption mode based upon the at least one NFC sensor. In particular, some of the different power consumption modes may be associated with selectively powering respective ones of the wireless communications ...

SYSTEM AND METHOD FOR SECONDARY CONTROL CHANNEL BOOSTING DURING UPLINK MULTIPLE INPUT MULTIPLE OUTPUT TRANSMISSION

Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In particular, an enhanced pilot reference may be provided for enabling increased data rates on a secondary stream. Specifically, a primary stream, provided on a primary virtual antenna (610), includes an enhanced primary data channel E-DPDCH (624), a primary control channel DPCCH (622), and an enhanced primary control channel E-DPCCH (614). Further, a secondary stream, provided on a secondary virtual antenna (612), includes an enhanced secondary data channel S-E-DPDCH (620) and a secondary control channel S-DPCCH (618). Here, the secondary control channel S-DPCCH (618) may be transmitted at a boosted power level relative to a determined reference power level.

METHOD AND APPARATUS FOR POWER CONTROL OF FIRST DATA TRANSMISSION IN RANDOM ACCESS PROCEDURE OF FDMA COMMUNICATION SYSTEM

Transmit power is controlled for a first uplink data transmission on Physical Uplink Shared Channel (PUSCH) during random access channel (RACH) procedure. Power control adjustment for the first PUSCH transmission is performed relative to the power spectral density used for successful PRACH transmission as adjusted for bandwidth difference, etc. The uplink Physical random access channel carries the RACH information that is transmitted by the user equipment (UE) during registrations or base station originated calls. A PRACH is composed of a number of preambles and a message portion. The preambles are a series of radio frequency power "steps" that increase in power according to the power step setting until the maximum number of preambles is reached or the base station acknowledges. Once the UE receives a positive indication, it transmits the message portion of the PRACH which consists of message data and control data with independent power gain control.

METHOD AND APPARATUS FOR COMMUNICATIONS OF DATA IN A COMMUNICATION SYSTEM

A method and apparatus provides for efficient data rate control and power control processes by transmitting a primary and a secondary pilot channel associated with a data channel. The primary and secondary pilot channels are used for decoding the data. A ratio of power levels of the primary and secondary pilot channels is based on at least one of the data rate and payload size of the data channel. The power level of the primary pilot channel is maintained independent of at least one of data rate and payload size of the data channel. The power level of the secondary pilot channel may be adjusted based on at least one of data rate and payload size of the data channel.

PILOT BASED TRANSMIT POWER CONTROL

A novel and improved method for performing transmit power control is described. A signal is transmitted at a transmit power and includes a traffic channel transmitted at a traffic channel transmit power, and a pilot channel transmitting at a pilot channel (70) transmit power. The receive energy of the pilot channel is measured, and a decrease power control command (121) is generated when the receive energy is greater than a receive energy threshold. If the receive energy is less than the receive energy threshold, an increase power control command (121) is generated. The power control command (121) is transmitted t o the system generating the signal.

METHOD FOR CONTROLLING SIGNAL POWER IN POINT-TO-MULTIPOINT DATA COMMUNICATION (VARIANTS) AND A DEVICE FOR THE REALIZATION OF THE METHOD (VARIANTS)

METHOD AND APPARATUS FOR TRANSMITTING PILOT ON MULTIPLE ANTENNAS

CDMA/TDD mobile communication system and method

Method and arrangement for power control in a radio communication system

A method and arrangement, for power control in a communication system (100) employing a Downlink Shared Control Channel (DSCH) and a Forward Access Control Channel (FACH), comprising: applying power control on the Downlink Shared Control Channel; deriving power control information from the power control on the Downlink Shared Control Channel; and applying to the Forward Access Control Channel the derived power control information from the power control on the Downlink Shared Control Channel in order to produce power control on the Forward Access Control Channel. The power control of the Forward Access Control Channel may be by scheduling of data in response to the derived power control information. The invention may improve Forward Access Control Channel throughput and reduce the requirements of measurements or increase capacity.

Wireless base station and wireless communication system

The invention provides a wireless base station and a wireless communication system. The objective of the invention is to prevent deterioration of receiving quality caused by interference of downlink signal from other base stations. The invention comprises a reference information storing unit for storing reference information needed for receiving control signal from terminal device, a first control signal receiving unit for receiving a first uplink control signal used by a mobile station connected to the wireless base station and for requesting the power control unit to control the transmission, and a second control signal receiving unit for receiving a second uplink control signal used by a mobile station connected to the neighbor base station and for requesting the power control unit to control the transmission power, and wherein the power control unit controls the transmission power of the downlink signal based on the request to control the transmission power from the first control signal ...

Method and apparatus for transmitting data by an enhancement type random access channel

A method and apparatus for transmitting data by an enhancement type random access channel is disclosed.

For low latency wireless communication resource management

A METHOD AND APPARATUS FOR PROCESSING SIMULTANEOUS ASSIGNMENT IN WIRELESS COMMUNICATION SYSTEMS

A METHOD OF SERVING SECTOR MAINTENANCE IN A WIRELESS COMMUNICATION SYSTEMS

METHOD AND APPARATUS FOR MAINTAINING A FRAME ERROR RATE

A METHOD AND APPARATUS FOR PROCESSING A MULTI-CODE WORD ASSIGNMENT IN WIRELESS COMMUNICATION SYSTEMS

A method and apparatus for processing a Multi-code word assignment is provided, comprising receiving a MCW-FLAB1, determining value of supplemental field in the MCW-FLAB1 received with a MACID of an access terminal from the SS MAC protocol with a supplemental field, determining whether a MCW-FLAB2 is received with MACID in a same PHY frame and processing the MCW-FLAB1 based upon whether the MCW-FLAB2 is received and the value of the supplemental field. © KIPO & WIPO 2008 ...

DETERMINING A GAIN FACTOR CONTROL TRANSMISSION POWER IN IMPROVED UPLINKS

control method of the power transmission system and movable communication

TECHNIQUES AND APPARATUS FOR CONFIGURATION OF COEXISTENCE BY TIME DIVISION DUPLEX

El aparato puede recibir, por una banda de servicios de radio de banda ancha de ciudadanos (CBRS), preferencias de configuración de dúplex por división de tiempo (TDD), El aparato puede seleccionar, con base al menos en parte en las preferencias de configuración de TDD, una configuración de TDD, de una pluralidad de posibles configuraciones de TDD. El aparato puede transmitir información de selección que identifica la configuración de TDD seleccionado. Reivindicación 25: Un aparato para la comunicación inalámbrica, que comprende: medios para recibir, por una banda de servicios de radio de banda ancha de ciudadanos (CBRS), preferencias de configuración de dúplex por división de tiempo (TDD); medios para seleccionar, con base al menos en parte en las preferencias de configuración de TDD, una configuración de TDD, de una pluralidad de posibles configuraciones de TDD; y medios para transmitir información de selección de identificación de la configuración de TDD seleccionado.

WIRELESS COMMUNICATION DEVICE AND METHOD FOR CONTROLLING TRANSMISSION POWER

A METHOD AND APPARATUS FOR REDUCING LINK INTERFERENCE BY A LINK BETWEEN A USER EQUIPMENT COMPONENT AND AN ACCESS NETWORK COMPONENT

A METHOD AND APPARATUS FOR REDUCING LINK INTERFERENCE BY A LINK BETWEEN A USER EQUIPMENT COMPONENT AND AN ACCESS NETWORK COMPONENT A method and apparatus are described for reducing link interference by a link between a user equipment component and an access network component. The user equipment component and access network component are connected by links over dedicated channels in respective directions, the link channel power in the first direction being controlled by the link channel in the second direction. A component sends a reconfiguration message to the other component to reconfigure to a common channel state in which the link channel power in the first direction is independent of the link channel in the second direction. [Figure 5] ...

TOTAL REMAINING POWER ESTIMATION IN CARRIER AGGREGATION

A user equipment (UE), comprising at least one component configured to send power headroom (PH) information for each of a plurality of component carriers (CCs) of a carrier aggregation, CC specific configured maximum power information for the CCs, and UE configured maximum power information, wherein the PH information for each of the CCs, the CC specific configured maximum power information for the CCs, and the UE configured maximum power information allow the access device to estimate a total remaining power for the UE.

CONTROL RESOURCE MAPPING FOR A WIRELESS COMMUNICATION SYSTEM

Techniques for sending control information in a wireless communication system are described. A control segment may include tiles, and each tile may include a number of transmission units. A number of control resources may be defined and mapped to the transmission units for the control segment. For symmetric mapping, multiple sets of control resources may be formed, and each batch of L consecutive sets of S control resources may be mapped to S transmission units at the same location in the L tiles. For localized mapping, each set of S control resources may be mapped to a cluster of S adjacent transmission units in one tile. For distributed mapping, each control resource may be mapped to one transmission unit in one tile. For diversity, each control resource may be mapped to multiple (e.g., three) transmission units in at least one tile.

TERMINAL, COMMUNICATION SYSTEM, COMMUNICATION METHOD AND BASE STATION

Provided are a base station, a terminal, and a communication system which is capable of efficient communication between the base station and the terminal. This terminal for communication between the base station and the terminal is provided with: a radio release control unit (6011) which, in accordance with information contained in a radio release control (RRC) signal, sets parameters relating to first uplink power control and parameters relating to second uplink power control; a receiving unit (605) which determines the downlink control information (DCI) format; a transmission power control unit (6015) which sets the uplink transmission power on the basis of the settings of parameters relating to first uplink power control or the settings of parameters relating to second uplink power control; and a transmission unit (607) which transmits an uplink signal at the uplink transmission power that has been set.

CONTROLLING UPLINK TRANSMIT POWER RESPONSIVE TO COMBINATION OF RECEIVED POWER CONTROL COMMANDS DURING SOFT HANDOVER IN A COMMUNICATON SYSTEM

A method by a user equipment node (110) controls uplink transmission power during soft handover of the user equipment node (110) from a first base station (120a) to a second base station (120b). A transmission power control command is received (400) by the user equipment node (110) from each of the first and second base stations (120a, 120b) during the soft handover. Uplink transmission power by the user equipment node (110) of a high-speed dedicated physical control channel (202) is controlled (402) responsive to the received transmission power control commands.

WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD

Speedy and efficient data communication is allowed by dynamically changing an optimal MCS and optimal PC. A base station (120) as a wireless communication device is characterized by comprising an acquisition section (220) which acquires an RSSI and SINR of a received signal when transmission data to a PHS terminal (110) as a wireless communication device that is a communication target occurs, a modulation system determination section (224) which determines the MCS on the basis of a transmission data amount, a transmission power determination section (226) which determines the transmission power on the basis of the transmission data amount, RSSI, SINR, and the determined MCS, and a wireless communication section (214) which transmits the transmission data by the determined MCS and transmission power.

MOBILE COMMUNICATION METHOD, MOBILE STATION, AND RADIO BASE STATION

A mobile station UE includes: a propagation loss calculation unit (11) which calculates a propagation loss in a downlink in accordance with a common pilot signal transmitted from a radio base station eNB; a parameter acquisition unit (12) which acquires a parameter concerning the power control in PRACH reported by the radio base station eNB by using MIB; an initial transmission power determination unit (13) which determines the transmission power of a new RA preamble to be transmitted in accordance with the calculated propagation loss in the downlink and the parameter concerning the power control in the PRACH reported by the radio base station eNB; and an RA preamble transmission unit (14) which starts transmission of the RA preamble by the determined transmission power.

APPARATUS

... [Problem] The present invention addresses the problem of allowing a wireless communication system to more appropriately use a frequency band shared between wireless communication of the wireless communication system and other wireless communication. [Solution] Provided is an apparatus that includes: an acquiring unit for acquiring information provided by a wireless communication device that uses a frequency band shared between wireless communication of a wireless communication system and other wireless communication and performs the other wireless communication therewith, said information pertaining to the other wireless communication; and a controller for determining, on the basis of the information pertaining to the other wireless communication, an additional band that is part of the shared frequency band and available for the wireless communication of the wireless communication system in addition to a frequency band dedicated for the wireless communication system.

A METHOD AND APPARATUS FOR ASSIGNING HOP-PORT FOR THE F-SSCH IN WIRELESS COMMUNICATION SYSTEMS

Art. 17.2 ...

Dynamic selection of power reduction values

A method for dynamically selecting an A-MPR value to apply for an uplink transmission is provided. The method can include a wireless communication device receiving an indication from a network that A-MPR should be applied for uplink transmissions within a frequency band used for communication between the wireless communication device and the network. The method can further include the wireless communication device receiving an RB allocation for a subset of RB's within the frequency band from the network. The method can additionally include the wireless communication device determining an allocation ratio and a distribution characteristic of the allocated subset of RB's within the frequency band. The method can also include the wireless communication device selecting an A-MPR value to apply based at least in part on the allocation ratio and the distribution characteristic. The method can further include the wireless communication device applying the selected A-MPR.

Method and apparatus for setting reverse link CQI reporting modes in wireless communication system

A method and apparatus for setting Reverse Link CQI Reporting Modes in an access terminal is provided, comprising determining a value for CQIReportingMode received as a parameter in a transmitted message and setting the reverse link CQI reporting mode of the access terminal based on CQIReportingMode value. The CQIReportingMode value is indicative of a reporting mode selected from a plurality of reporting modes.

Base station, mobile station, and power control method

A base station includes: means that derives a transmission power of a mobile station based on receive quality of an uplink pilot channel; means that reports the derived transmission power to the mobile station; and means that receives a control channel transmitted by the mobile station according to the reported information. Accordingly, irrespective of transmission power history over a past continuous time, the mobile station receives an instruction on the transmission power from the base station each time when transmitting a packet so as to be able to adjust the transmission power.

Efficient sharing of capacity by remote stations using circuit switching and packet switching

An improvement to a spread-spectrum, code-division-multiple-access (CDMA) cellular system having multiple circuit-switched (CS) remote stations, multiple packet-switched (PS) remote stations and a base station per cell. The CS-remote station transmits a spread-spectrum CDMA signal, with a chip rate of fc, with a CS-symbol rate of fb, and with a power level PCS. The PS-remote station transmits a spread-spectrum CDMA signal with the chip rate of fc, PS-symbol rate fp, and with a power level PPS. The power level PPS from the PS-remote station and the power level PCS from the CS-remote station are related by a relation of the CS-symbol rate and the PS-symbol rate to efficiently share system capacity.

Apparatus and an associated method for facilitating communications in a radio communication system that provides for data communications at multiple data rates

Apparatus, and an associated method, for facilitating operation of a radio communication system that provides for multi rate data communications, such as a CDMA 2000 system that provides for 1xEV-DV communication services. A supplemental pilot, or control, signal generator embodied at a mobile station generates a supplemental pilot, or control, signal that is sent on a newly defined supplemental pilot, or control, channel. As the data rates of data communicated upon a reverse supplemental channel changes, corresponding changes are made to the power level of the reverse supplemental pilot, or control, signal.

Method and system for deployment and control of small cells

Methods and apparatuses are provided for performing power control for a femto node deployed in a wireless network that include adjusting a transmission parameter of the femto node based on one or more radio frequency (RF) environment parameters. An RF environment parameter can be determined for a femto node related to a location in a coverage area. A different RF environment parameter related to other femto nodes at the location in the coverage area can be received from one or more devices, a network listening module, etc. A transmission parameter of the femto node, such as a transmit power, can be adjusted based on the RF environment parameter and the different RF environment parameter.

METHOD AND APPARATUS OF PROCESSING NON-STICKY ASSIGNMENTS IN WIRELESS COMMUNICATION SYSTEMS

A method and apparatus for management of Non-Sticky Assignments in a wireless communication system comprising receiving Non-Sticky Forward Link Assignment block with matching broadcast or unicast MACID, determining value of FLImplicitDeassignEnabled and determining TunedAway indication.

PUSCH and PUCCH power control under coverage enhancements in LTE

Methods, systems, and devices are described for uplink power control in a wireless communications network. Power settings for various uplink transmissions may account for, or be based on, prior uplink channel repetition levels. Uplink power settings may also be based on other factors, including a power ramp-up associated with prior uplink transmissions. Certain uplink power settings may be computed by a user equipment (UE) or they may be indicated to a UE from another system node. The described features may be implemented as coverage enhancement techniques, for example, for machine-type communication (MTC).

SYSTEMS AND METHODS FOR DYNAMIC PER-BEAM ADJUSTMENT OF OUTPUT POWER IN A WIRELESS NETWORK

A system described herein may provide a technique for determining a maximum and/or target output power on a per-beam and/or per-direction basis for a base station of a radio access network (“RAN”) that implements multiple beams for which output power is dynamically adjustable. The maximum and/or target output power for a given beam (or set of beams) for a given time period may be determined based on historical output power information associated with the beam over one or more previous time periods. The maximum and/or target output power may be based on a predicted received signal power within a coverage area of the base station, based on varying levels of output power.

Reduction and/or mitigation of spatial emissions in multi-antenna wireless communication systems for advanced networks

Facilitating the reduction and/or mitigation of spatial emissions in a multi antenna wireless communications system is provided herein. A system can comprise a memory that stores executable instructions that, when executed by a processor, facilitate performance of operations that can comprise applying a first signal linearization to a first output signal of a first power amplifier based on a determination that an adjacent channel leakage ratio of the first output signal of the first power amplifier fails to satisfy a defined output value. The operations can also comprise applying a second signal linearization to a group of output signals of a group of power amplifiers for a defined azimuth direction associated with channel frequencies of the group of output signals and applying a third signal linearization to the group of output signals for a defined elevation direction associated with the channel frequencies of the group of output signals.

TRANSMIT POWER CONTROL OF CHANNELS TRANSMITTED IN DIFFERENT FREQUENCY REGIONS

METHOD AND APPARATUS FOR CONTROLLING UPLINK TRANSMISSION POWER IN WIRELESS ACCESS SYSTEM SUPPORTING MACHINE-TYPE COMMUNICATION

COMMUNICATION SYSTEM FOR NOTIFYING POWER HEADROOM INFORMATION

Method and apparatus for determining a data rate in a high rate packet data wireless communications system

Radio communication system and mobile terminal for receiving data of a multimedia broadcast multicast service

RADIO COMMUNICATION METHOD, RADIO COMMUNICATION SYSTEM, RADIO STATION AND RADIO TERMINAL

An object of the technique disclosed herein is to provide a wireless communication method, a wireless communication system, a wireless station, and a wireless terminal that make it possible to appropriately adjust transmission power of a signal to be transmitted from the wireless terminal and improve communication performance in coordinated multipoint communication. In the wireless communication method, a wireless station connected to the wireless station among a plurality of wireless stations transmits, to the wireless terminal, a first control signal related to a communication level between one or more wireless stations selected from among the plurality of wireless stations and the wireless terminal, and the wireless terminal receives the first control signal and controls transmission power of a signal to be transmitted to the one or more selected wireless stations.

METHOD, APPARATUS AND COMPUTER PROGRAM PROVIDING SIGNALING OF ZERO POWER ALLOCATION FOR HIGH SPEED UPLINK PACKET ACCESS (HSUPA)

Reverse link power control for wireless communication systems

Assigning power spectrum density to access terminals within a wireless network environment is provided. Assignment information that includes assignment of reverse link transmission resources is determined and a power control instruction is created for the assigned reverse link transmission resource. An assignment message that includes both the assignment information and the power control instruction is formatted and communicated to the access terminals. The assignment message includes a Reverse Link Power Control field that indicates a transmit power spectral density assigned by the access point to the reverse-link transmission by the terminal.

Method and apparatus for sending feedback for a downlink shared service and estimating a number of wireless transmit/receive units

A method and an apparatus for sending a signal on a contentious feedback channel for a downlink shared service and for estimating a number of wireless transmit/receive units (WTRUs) are disclosed. When a transmission criterion associated with a physical random access feedback channel (P-RAFCH) is satisfied, a physical resource is randomly selected among a plurality of physical resources assigned for the P-RAFCH and a pre-configured signal is sent using the selected physical resource. A Node-B receives the pre-configured signal from a plurality of WTRUs and calculates a number of the WTRUs based on a number of used physical resources. The transmission criterion is at least one of successful reception of a data packet on a downlink physical channel, successful reception of a data block on a data service, reception of a signaling command, occurrence of a measurement event, and failure to receive a transmission after a specified number of times.

Method and apparatus for setting a transmit power level

An access point for supporting communication in a femto cell of a cellular communication network. The access point comprises transceiver circuitry arranged to enable communication with at least one cell subscribed wireless communication unit located within the femto cell, and signal processing logic module. The signal processing logic is arranged to configure a transmit power level of a Common Pilot CHannel (CPICH) for transmission based at least on cell subscribed wireless communication unit information.

Method and apparatus for controlling uplink power in wireless communication system

A method is provided for controlling an uplink (UL) power by a Mobile Station (MS) in a wireless communication system including an upper-layer Base Station (BS) and a lower-layer BS whose cell coverage is narrower than that of the upper-layer BS. The method also includes measuring a first received signal strength indicating a received signal strength of a first reference signal received from the upper-layer BS, and a second received signal strength indicating a received signal strength of a second reference signal received from the lower-layer BS, acquiring a transmission (TX) power ratio representative of a ratio of a first TX power indicating a TX power of the upper-layer BS to a second TX power indicating a TX power of the lower-layer BS, selecting a first serving BS indicating a UL serving BS to which the MS will transmit a UL signal, from among the upper-layer BS and the lower-layer BS, and determining a UL TX power, based on the first received signal strength, the second received signal strength, and the TX power ratio, and transmitting the UL signal to the first serving BS using the UL TX power.

Method and Apparatus Providing Signal Metric for Transmitter

The present invention provides a method and associated apparatus providing a signal metric for a transmitter of a communication system. While the transmitter transmitting a signal with amplitudes scaled by scaling combinations selected from a plurality of scaling combination alternatives, the method including: providing a plurality of power terms, each power term corresponding to one of the scaling combination alternatives; and calculating the signal metric according to the plurality of power terms.

Method and apparatus for sending feedback for multi-cell high speed downlink packet access operations

A method and apparatus for sending feedback for multi-cell high speed downlink packet access (HSDPA) operations are disclosed. A wireless transmit/receive unit (WTRU) may generate and send hybrid automatic repeat request acknowledgement (HARQ-ACK) messages and/or channel quality indication (CQI) or precoding control indication/channel quality indication (PCI/CQI) messages for a plurality of cells via a plurality of high speed dedicated physical control channels (HS-DPCCHs) with a spreading factor of 128. Each HARQ-ACK message may be mapped to two cells and each CQI or PCI/CQI message may be mapped to one cell. The cells may be remapped to an HARQ-ACK message and a CQI or PCI/CQI message within an HS-DPCCH on a condition that any cell is activated or deactivated on that HS-DPCCH.

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

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.

Systems and Methods for Providing Categorized Channel Reservation

A wireless communications system for categorized channel reservation is provided with a first wireless communications module and a second wireless communications module. The first wireless communications module transmits or receives a plurality of first wireless signals. The second wireless communications module transmits a first control packet according to an activity schedule of the first wireless communications module to disable a plurality of wireless communications stations from data transmissions, and transmit a second control packet to enable a predetermined number of the wireless communications stations to perform the data transmissions.

Preventing Dropped Calls Using Voice Services Over Adaptive Multi-User Channels on One Slot (Vamos) Mode

Embodiments of the present invention include devices, systems and methods for prevention of dropped calls. For example, a method for preventing dropped voice calls can be performed by a base station. Multiple reports are received from multiple wireless communication devices. A first wireless communication device having a poor received signal is identified using the reports. A sub-channel power imbalance ratio is adjusted so that the base station gives favorable power imbalance to the first wireless communication device over a second wireless communication device. The second wireless communication device is paired with the first wireless communication device. Adjusting the sub-channel power imbalance ratio prevents a voice call by the first wireless communication device from being dropped that would otherwise be dropped. Other aspects, embodiments and features are also claimed and described.

Method for setting data transmission parameters and communication device

A method for setting data transmission parameters of a communication connection comprising exchanging interface management capabilities between a plurality of communication devices; selecting from the plurality of communication devices, an active interference manager and at least one passive interference manager; collecting information about communication connections to the active interference manager, including information messaged from the at least one passive interference manager; and setting the plurality of data transmission parameters of the communication connections based on the collected information, wherein the collected information includes database information generated through simulations or measurements and stored on the plurality of communication devices.

Transmission Power Control

There is provided solution for controlling transmission power characteristics of a local area base station. The solution includes determining the level of radio interference on a first frequency band used by a local area base station and on at least one second frequency band adjacent to the first frequency band. The solution may further comprise controlling the transmission power characteristics of the local area base station by taking into account at least one of the determined levels of interference.

Method and system for controlling transmission power of a downlink signaling channel based on enhanced uplink transmission failure statistics

A method and system for controlling the transmission power of at least one downlink (DL) enhanced uplink (EU) signaling channel such that enhanced dedicated channel (E-DCH) DL signaling is delivered efficiently and reliably. The system includes at least one wireless transmit/receive unit (WTRU), at least one Node-B and a radio network controller (RNC). At least one of the WTRU and the Node-B compute EU transmission failure statistics on the DL EU signaling channel and report the EU transmission failure statistics to the RNC. The RNC then adjusts a transmission power offset of the DL EU signaling channel to be used in determining transmission power level of the DL EU signaling channel at the Node-B based on the EU transmission failure statistics.

System and method for uplink multiple input multiple output transmission

Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In particular, scheduled uplink transmission power is allocated between a primary stream including an E-DPDCH and a secondary stream including an S-E-DPDCH. Specifically, a ratio between the power of the E-DPDCH and a primary pilot channel DPCCH, as well as a ratio between the power of the S-E-DPCCH and an unboosted power of the S-DPCCH, each corresponds to a first traffic to pilot power ratio. Further, the transport block size for a primary transport block provided on the E-DPDCH is determined based on the first traffic to pilot power ratio, while the transport block size for a secondary transport block provided on the S-E-DPDCH is determined based on a second traffic to pilot power ratio.

System and method for uplink multiple input multiple output transmission

Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In particular, an enhanced pilot reference may be provided for enabling increased data rates on a secondary stream. Specifically, a primary stream, provided on a primary virtual antenna, includes an enhanced primary data channel E-DPDCH, a primary control channel DPCCH, and an enhanced primary control channel E-DPCCH. Further, a secondary stream, provided on a secondary virtual antenna, includes an enhanced secondary data channel S-E-DPDCH and a secondary control channel S-DPCCH. Here, the secondary control channel S-DPCCH may be transmitted at a boosted power level relative to a determined reference power level.

Mobile communications network

A first user terminal receives data during a time slot assigned for simultaneous transmission of data to a first set of at least one user terminal and to a second set of at least one user terminal using time-division multiplexing, estimates the applied power ratio between a first sub-channel to the first set and a second sub-channel to the second set (available power ratios are divided into at least one known region and each applied power ratio belongs to one region), estimates a bit error probability for each of the bursts of the received data; and applies an adaptation process in order to make the estimated bit error probabilities fall into one of bit error probability intervals of a predefined mapping table with a predetermined probability. which determines the bit error probability that is to be reported to a network.

Communication method and system for physical uplink control channel resource assignment, and base station, user equipment and integrated circuit therein

A communication system in which a base station apparatus and a user equipment communicate on multiple component carriers comprising primary component carrier and non-primary component carrier, the base station apparatus, transmits, to the user equipment, four indices for physical uplink control channel resource using higher layer signaling, transmits, to the user equipment, an index indicator using transmission power control command for physical uplink control channel field, the user equipment, determines an index among the four indices according to the index indicator, transmits, to the base station apparatus, HARQ-ACK/NACK using physical uplink control channel resource the index, wherein the transmission power control command for physical uplink control channel field is included in a downlink control information format, which is used to schedule a physical downlink shared channel on the non-primary component carrier.

Method and apparatus for power cutback in a simultaneous dual frequency band call

A method and apparatus can cut back power in a simultaneous dual frequency band call. The method may operate a dual frequency band transmit device. The method may include determining if a transmit frequency in a first frequency band from the device combined with a transmit frequency in a second frequency band from the device causes receiver desensitization at the device. The method may include determining if the transmit power in the first frequency band is above a threshold power. The method may include reducing maximum transmit power in the second frequency band by an amount proportional to transmit power in the first frequency band and transmit signal bandwidth in the second frequency band in only the portion of the second frequency band where a resultant frequency component can cause desensitization.

Method and apparatus for uplink transmission power control and timing in coordinated multipoint transmission schemes

A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus of a first cell communicates with a second cell in relation to a coordinated multipoint (CoMP) transmission of control information by the second cell and data by the first cell to a user equipment (UE) in a range expanded region of the first cell, determines a desired transmission power level for an uplink transmission to the first cell by the UE, and provides the desired transmission power level for the uplink transmission to the second cell.

Transmit power adjustment to reduce a relative phase discontinuity

A method and a serving NodeB for adjusting transmit power of a User Equipment (UE) having multiple transmitter chains to reduce relative phase discontinuity (RPD) between a Sounding Reference Signal (SRS) and a Physical Uplink Shared Channel (PUSCH). The NodeB receives from the UE, an RP characteristic of the UE and, based on the RP characteristic, selects an SRS or PUSCH transmit power level for the UE so as to reduce the RPD. The NodeB instructs the UE to set the SRS or PUSCH transmit power level to the level selected by the NodeB.

UPLINK CONTROL CHANNEL TRANSMISSION CONTROL METHOD IN A MULTI-CARRIER SYSTEM AND TERMINAL USING SAME

Provided is a transmission power control method for an uplink control channel of a terminal in a multi-carrier system where a plurality of downlink component carriers and at least one uplink component carrier are set in the terminal. The method includes: receiving a plurality of downlink grants from a base station; checking a Transmission Power Command (TPC) field included in each of the plurality of downlink grants; determining a transmission power of an uplink control channel (PUCCH) with a value of the checked TPC field; and transmitting the uplink control channel at the determined transmission power, with one configured uplink component carrier among the at least one uplink component carrier. 1. A method of a mobile station controlling transmission power for an uplink control channel in a multi-carrier system in which a plurality of downlink Component Carriers (DL CCs) and at least one uplink component carrier(UL CC) are configured for the mobile station , the method comprising:receiving a plurality of DL grants from a base station;testing Transmission Power Command (TPC) fields included in the plurality of DL grants, respectively;determining transmission power of an uplink control channel (PUCCH) using a value of a TPC field through which the test has passed; andtransmitting the uplink control channel using the determined transmission power through one configured UL CC among the at least one UL CC.2. The method of claim 1 , further comprising:receiving configuration information, indicating a sign or value of each of the TPC fields included in the plurality of DL grants, respectively, from the base station.3. The method of claim 2 , wherein:the TPC fields included in the plurality of DL grants, respectively, are configured to have an identical sign or a ‘0’ value, andwherein the sign indicates a positive value or negative value.4. The method of claim 3 , wherein the transmission power of the uplink control channel is determined by adding only values of TPC ...

UPLINK POWER CONTROL FOR DISTRIBUTED WIRELESS COMMUNICATION

A method and apparatus for power control for distributed wireless communication is disclosed including one or more power control loops associated with a wireless transmit/receive unit (WTRU). Each power control loop may include open loop power control or closed loop power control. A multi-phase power control method is also disclosed with each phase representing a different time interval and a WTRU sends transmissions at different power levels to different set of node-Bs or relay stations during different phases to optimize communications. 1. A method for power control in a wireless transmit/receive unit (WTRU) configured for distributed communications , the method comprising:deriving by the WTRU a combined transmit power control (TPC) command based on a plurality of TPC commands received by the WTRU, each TPC command being associated with a respective closed loop independent power control loop maintained by the WTRU with a plurality of base stations and a plurality of relay stations (RSs); anddetermining by the WTRU a transmit power increase or decrease based on the combined TPC command.2. The method of further comprising:determining a primary RS from the RSs; andreceiving by the WTRU a primary TPC command from the primary RS while communicating concurrently with the RSs.3. The method of wherein the primary TPC command is a coordinated combined TPC command.4. The method of further comprising:transmitting by the WTRU the TPC commands to the RSs.5. The method of wherein the distributed communications is configured for multi-user multiple in/multiple out (MIMO) communications.680216. The method of wherein the distributed communications is configured for long term evolution (LTE) claim 1 , . claim 1 , high speed packet access (HSPA) claim 1 , or code division multiple access (CDMA) communications.7. The method of further comprising:computing a path loss by the WTRU for open loop power control based on a proportion of power needed by the base stations and the RSs; ...

TRANSMISSION POWER CONTROL METHOD, MOBILE TERMINAL APPARATUS AND RADIO BASE STATION APPARATUS

It is an object to provide a transmission power control method, mobile terminal apparatus and radio base station apparatus for enabling a mobile terminal apparatus that performs radio communications in a system band including a plurality of component carriers to suitably control uplink transmission power in each component carrier, and a transmission power control method of controlling uplink transmission power of a mobile terminal apparatus that performs radio communications in a system band including a plurality of component carriers is provided with the steps of receiving a transmission power control command generated in a radio base station apparatus, and applying the received transmission power control command to a plurality of component carriers in common and setting transmission power of each component carrier. 1. A transmission power control method of controlling uplink transmission power of a mobile terminal apparatus that performs radio communications in a system band including a plurality of component carriers , comprising:receiving a transmission power control command generated in a radio base station apparatus; andapplying the received transmission power control command to at least a particular component carrier group in common and setting transmission power of each component carrier.2. The transmission power control method according to claim 1 , further comprising:receiving offset information for compensating for a reception quality difference between the plurality of component carriers measured in the radio base station apparatus, wherein in setting transmission power of the each component carrier, transmission power is determined based on the offset information.3. The transmission power control method according to claim 2 , wherein the offset information is information on target transmission power specific to each component carrier determined corresponding to the reception quality difference in the each component carrier.4. The transmission power ...

METHOD AND APPARATUS FOR CONTROLLING UPLINK TRANSMISSION POWER IN WIRELESS COMMUNICATION SYSTEM

The present invention relates to a method for transmitting uplink transmission power control information by a base station in a wireless communication system, the method comprising: transmitting first transmission power control information, which is applied to a first uplink resource set, to a user equipment; transmitting second transmission power control information, which is applied to a second uplink resource set, to the user equipment; receiving an uplink signal, which is transmitted through one or more uplink resources of the first uplink resource set using uplink transmission power which is based on the first transmission power control information, from the user equipment; and receiving an uplink signal, which is transmitted through one or more uplink resources of the second uplink resource set using uplink transmission power which is based on the second transmission power control information, from the user equipment. 1. A method for transmitting uplink transmission power control information by a base station in a wireless communication system , the method comprising:transmitting first transmission power control information, which is applied to a first uplink resource set, to a user equipment;transmitting second transmission power control information, which is applied to a second uplink resource set, to the user equipment;receiving an uplink signal, which is transmitted through one or more uplink resources of the first uplink resource set using uplink transmission power which is based on the first transmission power control information, from the user equipment; andreceiving an uplink signal, which is transmitted through one or more uplink resources of the second uplink resource set using uplink transmission power which is based on the second transmission power control information, from the user equipment.2. The method according to claim 1 , wherein the first and second uplink resource sets which are applied respectively to the first and second transmission ...

Base station, radio communications system, base station control method, radio communications method and base station control program

[Problems] Because it is not possible to reduce sufficiently the number of base stations that starts uselessly in spite of being in low traffic state, it is not possible to lower interference between adjacent cells and power consumption sufficiently. [Measures] A base station starts transmission of a control signal with predetermined power when communication between other base station and a mobile station is started and a first predetermined condition is satisfied.

UPLINK POWER CONTROL METHOD AND USER EQUIPMENT

The present invention relates to an uplink power control method and user equipment, which involve determining a power correction factor by considering the number of antenna ports. According to the present invention, even when a base station transmits the same power control information to the user equipment, the user equipment maps the power control information to another power correction factor and determines an uplink transmission power depending on an uplink transmission condition. Thus, uplink power control can be performed in a more efficient manner. 1. A method for controlling uplink power at a user equipment being equipped with Nnumber of antenna ports (wherein N>1) , the method comprising:receiving a power control command for controlling transmission power of an uplink signal from a base station; anddeciding a transmission power of the uplink signal by using the power control command;transmitting the uplink signal to the base station at the decided transmission power,{'sub': t', 't, 'wherein, when the number of used antenna ports used for the transmission of the uplink signal is equal to N1 (wherein N1 is a positive integer equal to or less than N), the power control command is mapped to a first correction value, so that the transmission power can be decided based upon the first correction value, and when the number of used antenna ports is equal to N2 (wherein N1≠N2, and wherein N2 is a positive integer equal to or less than N), the power control command is mapped to a second correction value, so that the transmission power can be decided based upon the second correction value.'}2. The method of claim 1 , wherein the number of used antenna ports is decided based upon precoding matrix indication information claim 1 , the precoding matrix indication information being received from the base station.3. The method of or claim 1 , further comprising:transmitting the uplink signal at the decided power.4. A user equipment being equipped with Nnumber of antenna ports ...

Method and apparatus for power control in a radio communication system

Power control in a communication system ( 100 ) employing a Downlink Shared Control Channel (DSCH) and a Forward Access Control Channel (FACH) is described. The method includes, applying power control on the Downlink Shared Control Channel; deriving power control information from the power control on the Downlink Shared Control Channel; and applying to the Forward Access Control Channel the derived power control information from the power control on the Downlink Shared Control Channel in order to produce power control on the Forward Access Control Channel. The power control of the Forward Access Control Channel may be implemented by scheduling data in response to the derived power control information.

Method and apparatus for compensating code channel power in a transmitter

It has now been found that in some transmitter implementations which transmit multiple code channels, for example CDMA transmitters, the observed power for each code channel at the output relative to the other code channels is dependent upon the total transmit power due to non-linearities in the transmitter. Methods and apparatus are provided which use pre-set digital gains or digital gain adjustments to compensate for the non-linearities as a function of total transmit power such that at the output, the desired relative powers are observed.

METHOD FOR CONTROLLING UPLINK TRANSMIT POWER IN MOBILE COMMUNICATION SYSTEM

Disclosed is a method for controlling uplink transmit power in a mobile communication system. A mobile communication includes a first base station and a second base station which are located in two mutually adjacent cells, respectively, at least one base station of the first and second base stations which generate a subframe offset of transmit power (SOTP), and transmits a subframe offset of transmit power generated by at least one base station of the first and second base stations to at least one terminal which belongs to a corresponding cell. Accordingly, it is possible to reduce signaling times for transmit power control, and to accurately control transmit power. 1. A method of controlling uplink transmit power in a mobile communication system including first and second base stations respectively located in two adjacent cells , the method comprising:creating, by at least one of the first and second base stations, a subframe offset of transmit power (SOTP); andtransmitting, by the at least one of the first and second base stations, the created SOTP to at least one terminal belonging to a corresponding one of the cells.2. The method of claim 1 , wherein the creating of the SOTP comprises:acquiring, by the second base station, resource allocation information of the first base station; andcreating the SOTP for each subframe based on position information of an almost blank subframe (ABS) in the acquired resource allocation information of the first base station.3. The method of claim 1 , wherein the creating of the SOTP comprises creating the SOTP using either of a cell-specific scheme and a terminal-specific (UE specific) scheme.4. The method of claim 3 , wherein the transmitting of the created SOTP to the at least one terminal belonging to the corresponding one of the cells comprises transmitting the created SOTP through system information if the SOTP is created using the cell-specific scheme and through signaling of a protocol layer located in a higher layer than a ...

WIRELESS MULTI-CELL COMMUNICATION SYSTEM AND METHOD FOR MANAGING RESOURCE POWER TO PROVIDE HIGH SPEED DOWNLINK PACKET ACCESS SERVICES

A method and wireless multi-cell communication system for providing high speed downlink packet access (HSDPA) services. The system includes a radio network controller (RNC) in communication with a plurality of base stations. The RNC sends a control signal to at least one base station having a plurality of timeslots, e.g., in a time division duplex (TDD) system and/or frames including transmission timing intervals (TTIs), e.g., in a frequency division duplex (FDD) system assigned thereto for the establishment of HSDPA channels. The control signal indicates a maximum allowed HSDPA transmit power for each of the timeslots and/or TTIs. The base station sends a feedback signal to the RNC indicating the results of measurements of the power of the transmitted HSDPA timeslots and/or TTIs during a predetermined time period. 1. A Node B comprising:circuitry configured to receive a first Iub signal from a radio network controller (RNC) indicating a maximum transmit power level for all channel codes transmitted by the Node B; wherein the circuitry is further configured to receive a second Iub signal from the RNC indicating a maximum transmit power level for high speed downlink shared channel (HS-DSCH) and high speed shared control channel (HS-SCCH) codes of the Node B; wherein the circuitry is further configured to transmit at least the HS-DSCH and HS-SCCH codes at a power level that does not exceed the maximum transmit power level for HS-DSCH and HS-SCCH codes of the Node B; and wherein the circuitry is further configured to transmit an Iub signal to the RNC indicating a power associated with the HS-DSCH.2. The Node B of wherein the circuitry is further configured to schedule HS-DSCH transmissions to wireless transmit/receive units (WTRUs).3. A radio network controller (RNC) comprising:circuitry configured to transmit a first Iub signal to a Node B indicating a maximum transmit power level for all channel codes transmitted by the Node B; wherein the circuitry is further ...

Methods and apparatus for deployment and control of small cells

Methods and apparatuses are provided for performing power control for a femto node deployed in a wireless network that include adjusting a transmission parameter of the femto node based on one or more radio frequency (RF) environment parameters. An RF environment parameter can be determined for a femto node related to a location in a coverage area. A different RF environment parameter related to other femto nodes at the location in the coverage area can be received from one or more devices, a network listening module, etc. A transmission parameter of the femto node, such as a transmit power, can be adjusted based on the RF environment parameter and the different RF environment parameter.

METHODS, APPARATUS AND SYSTEMS FOR POWER CONTROL AND TIMING ADVANCE

A wireless transmit/receive unit (WTRU) may establish communication with a first set of cells and a second set of cells. The first set of cells may be associated with a first scheduler and the second set of cells may be associated with a second scheduler. The maximum allowed transmit power for the WTRU may be determined for and/or distributed across the first set of cells and the second set of cells. The first scheduler may determine a first maximum power value for the first set of cells and a second maximum power value for the second set of cells configured. The first scheduler may signal the second maximum power value to the second scheduler. 1. A method , comprising:determining, by a wireless transmit/receive unit (WTRU) for a channel, a respective transmit power control (TPC) factor for each scheduler of a plurality of schedulers, wherein the TPC factor for a particular scheduler is based on a TPC command received from the particular scheduler in response to a previous transmission; anddetermining channel power, based on the respective TPC factor, when transmitting the channel to the respective scheduler.2. The method of claim 1 , further comprising updating the TPC factor for a scheduler according to a PUCCH power control rule.3. The method of claim 1 , further comprising updating the TPC factor for the particular scheduler for a subframe as a function of a TPC command received from the particular scheduler for an earlier subframe.4. The method of claim 1 , further comprising scaling a transmit power for at least one of a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH).5. The method of claim 4 , wherein the transmit power is scaled as a function of a priority of the PUCCH or PUSCH.6. A method claim 4 , comprising:determining, by a first scheduler, a first maximum power value for a first set of cells configured for a wireless transmit/receive unit (WTRU); anddetermining, by the first scheduler, a second maximum power value ...

Method for Configuring Gain Factors for Uplink Service in Radio Telecommunication System

A method for configuring gain factors in a WCDMA telecommunication system is provided in which the gain factor for defining power required for normal reception of uplink data in an environment supporting an uplink service over an E-DCH can be configured using minimal signaling information. First gain factors for first TFs corresponding to a part of a TF set including a plurality of TFs available for an uplink service are received. One of the first TFs is determined as a reference TF for a second TF other than the first TFs in the TF set. Then, a second gain factor for the second TF is calculated using the first gain factor for the determined reference TF. The second gain factor is used for transmitting or receiving uplink data. 1. A method for computing a gain factor for Transport Format Combination (TFC) by a User Equipment (UE) in a wireless communication system , the method comprising:receiving information associated with one or more first gain factors for first Transport Format Combinations (TFCs) corresponding to a part of a TFC set including a plurality of TFCs available for an uplink service;determining that one of the first TFCs becomes a reference TFC to be used for one or more second TFCs other than the first TFCs in the TFC set; andcalculating a second gain factor for each second TFC among the one or more second TFCs by using the first gain factor for the determined reference TFC, the second gain factor being used for transmitting or receiving uplink data,wherein an index of the reference TFC for said each second TFC is determined to be nearest to an index of said each second TFC among one or more first TFCs.2. The method as claimed in claim 1 , wherein the information associated with said one or more first gain factors is signaled to the UE in the wireless communication system.3. The method as claimed in claim 1 , wherein said one or more first TFCs have an index smaller than the index of said each second TFC.4. The method as claimed in claim 1 , wherein ...

Radio communication system, radio base station, radio communication terminal, radio communication method, and a non-transitory computer readable medium embodying instructions for controlling a device to implement a control method

When one base station forms a plurality of cells that use different frequency bands, a handover caused by movement between cells can be successfully performed with a high probability. A radio base station adapted to communicate with a radio communication terminal, comprising: a communication unit which performs a first communication with the radio communication terminal by using a first frequency, wherein the communication unit performs a second communication with the communication terminal by using a second frequency that is different from the first frequency; and a controller which performs a control, of at least one of a first power of the first communication and a second power of the second communication, based on a first power-related quality of the first communication and a second power-related quality of the second communication.

Simultaneous Transmission in Multiple Timing Advance Groups

Systems and methods for specifying UE power control allocation for simultaneous transmission of PRACH in a secondary serving cell and PUCCH/PUSCH/SRS in a different serving cell in another timing advance group are disclosed. Rules are provided for prioritizing transmission of PRACH and/or other UL channels/signals. Additionally, UE power allocation is controlled for misaligned subframes across different timing advance groups. Latency of UL synchronization for a secondary serving cell is reduced by prioritizing PRACH retransmission. 1. A method comprising:performing by one or more processors in a user equipment device,receiving a Physical Downlink Control Channel (PDCCH) order to initiate a random access procedure on a first serving cell;identifying a Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), or Sounding Reference Symbol (SRS) transmission for a second serving cell other than the first serving cell;transmitting a PRACH transmission to the first serving cell in a subframe; andtransmitting the PUCCH, PUSCH, or SRS transmission to the second serving cell in the same subframe.2. The method of claim 1 , further comprising:scaling a transmission power level during the subframe so that a combined transmission power level for the PRACH transmission and the PUCCH, PUSCH, or SRS transmission does not exceed a maximum transmission power for the user equipment.3. The method of claim 1 , further comprising:scaling down a PUCCH, PUSCH, or SRS transmission power level during the subframe so that a combined transmission power level for the PRACH transmission and the PUCCH, PUSCH, or SRS transmission does not exceed a maximum transmission power for the user equipment.4. The method of claim 3 , wherein:said scaling down results in a PRACH transmission and no transmission of PUSCH, PUSCH, or SRS.5. The method of claim 1 , further comprising:determining that the PRACH transmission will be retransmitted in a second subframe; andincreasing a power ...

PROCESS FOR CONTROLLING THE TRANSMISSION POWER IN THE UPLINK COMMUNICATION CHANNEL, AND UE FOR DOING THE SAME

A process for controlling the power transmission in the uplink of the User Equipment communicating with a Base Station in a GSM wireless communication system, said process including the steps of: 1. Process for controlling the power transmission in the uplink of a User Equipment (UE) communicating with a Base Station (BS) in a GSM wireless communication system , said process including the steps of:initializing an audio/speech/data transmission channel;monitoring the power control commands generated by said Base Station, said commands determining a power transmission strength to be used by the UE within a power transmission window;determining for each block to be transmitted whether it includes a control channel or a traffic channel;applying, in response to said determination, a first power transmission level in case of a control block or a second power transmission level in case of a traffic/idle block, both power transmission levels being included within said range transmission window and the first power transmission level being higher for Fast Associated Control Channel (FACCH) blocks than the second power transmission level used for traffic data; and{'b': '350', 'transmitting said block () and repeating the preceding step until receipt of a new power control command.'}2. Process according to claim 1 , wherein said control channel is a Slow Associated Control Channel (SACCH) or a Fast Associated Control Channel.3. Process according to claim 1 , wherein no increase of the power transmission in applied on the control blocks when said base station already requests the higher level of transmission.4. User Equipment for communicating with a Base Station in a GSM wireless communication system claim 1 , said User Equipment comprising a transceiver includes:means for initializing an audio/speech/data transmission channel;means for monitoring the power control commands generated by said Base Station, said command determining a power transmission strength to be used by the ...

Method and Terminal Apparatus for Transmitting a Power Status Report in a Wireless Communication System

Method of transmitting a power status report by a mobile station in a wireless communication system according to the present application comprises receiving at least one of an offset value of a data channel or an offset value of a control channel for an uplink power control from a base station; determining a base uplink transmit power level for at least one of the data channel or control channel based on at least one of the received offset value of the data channel or the received offset value of the control channel; and transmitting the determined base uplink transmit power level to the base station. 1. A method of transmitting a power status report by a mobile station in a wireless communication system , the method comprising:receiving at least one of an offset value of a data channel or an offset value of a control channel for an uplink power control from a base station;determining a base uplink transmit power level for at least one of the data channel or control channel based on at least one of the received offset value of the data channel or the received offset value of the control channel; andtransmitting the determined base uplink transmit power level to the base station.2. The method according to claim 1 , further comprising calculating a downlink signal to interference power ratio value using a downlink signal received from the base station.3. The method according to claim 2 , wherein the downlink signal to interference power ratio value calculated by the mobile station is transmitted with the base uplink transmit power level.4. The method according to claim 1 , wherein the determined base uplink transmit power level is a value corresponding to each carrier.5. The method according to claim 2 , wherein the calculated downlink signal to interference power ratio value is calculated per Fractional Frequency Reuse (FFR) partition index.6. The method according to claim 1 , wherein the offset value of the data channel and the offset value of the control channel ...

Methods and apparatus for communicating and/or using transmission power information

A wireless terminal determines the transmission power used for its dedicated control channel at a point in time, and generates a power report indicating a ratio of a maximum wireless terminal transmit power to the transmit power of the dedicated control channel at the point in time. The power report provides a measure of available transmit power for wireless terminal use for other purposes, e.g., uplink traffic channels, after taking into consideration the transmit power used for the dedicated control channel. The point in time has a known time offset from the start of a communications segment in which the power report is transmitted. This allows the base station receiving dedicated control channel uplink signals from the wireless terminal to measure the received signals, receive and process the communicated power report, and correlate information to be used for accurate wireless terminal closed loop power control.

METHODS AND DEVICES FOR REDUCING INTERFERENCE IN AN UPLINK

A method of operating a communication system such that the communication system comprises at least a macrocell base station and a femtocell base station that is within the coverage area of the macrocell base station. The communication system is configured to provide an indication of the noise rise or interference at the macrocell base station to the femtocell base station and the femtocell base station, in response thereto, adjusts a maximum permitted transmission power based on the indication. 1. A method of operating a communication system , the communication system comprising at least a macrocell base station and a femtocell base station that is within the coverage area of the macrocell base station , the method comprising:providing an indication of the noise rise or interference at the macrocell base station to the femtocell base station by providing the indication of the noise rise or interference from an X2 proxy or femto gateway having a communication interface with the femtocell base station and the macrocell base station; andthe femtocell base station adjusting a maximum permitted transmission power for mobile devices transmitting to the femtocell base station based on the indication.2. A method as claimed in claim 1 , wherein the femtocell base station determines a target noise rise or interference level at the macrocell base station from the indication of the noise rise or interference.3. A method as claimed in claim 2 , wherein the step of adjusting comprises adapting the maximum permitted transmission power based on the target noise rise or interference level.4. A method as claimed in claim 1 , wherein adjusting includes reducing the maximum permitted transmission power in the event that the received notification indicates that the noise rise or interference at the macrocell base station is relatively high claim 1 , or increasing the maximum permitted transmission power in the event that the received notification indicates that the noise rise or ...

METHOD FOR CONTROLLING UPLINK TRANSMISSION POWER FOR TRANSMITTING A PLURALITY OF CODEWORDS IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS A PLURALITY OF ANTENNAS, AND APPARATUS FOR PERFORMING THE METHOD

Disclosed are a method for controlling uplink transmission power for transmitting a plurality of codewords in a wireless communication system that supports a plurality of antennas, and a terminal apparatus for the method. The terminal apparatus for controlling uplink transmission power for transmitting a plurality of codewords in a wireless communication system that supports a plurality of antennas comprises a receiver for receiving, from a base station, a first transmission power control parameter including a first transmission power control indication value related to the uplink transmission power control; and a processor for determining uplink transmission power for transmitting said plurality of codewords based on the amount of information for each unit resource for each code word, if said first transmission power control indication value is not zero, wherein said first transmission power control indication value may be a value corresponding to each codeword. 1. A method for controlling an uplink transmission power for transmission of multiple codewords at a user equipment in a wireless communication system supporting multiple antennas , comprising:receiving a first transmission power control parameter including a first transmission power control indication value related to uplink transmission power control from a base station; anddetermining an uplink transmission power for transmission of the multiple codewords based on the amount of corresponding information per unit resource of each of the multiple codewords, if the first transmission power control indication value is not 0,wherein the first transmission power control indication value is a value corresponding to each of the multiple codewords.2. The method according to claim 1 , wherein the determining further comprises:calculating a second transmission power control parameter related to the amount of corresponding information per unit resource of each of the multiple codewords,wherein the uplink ...

COMMUNICATION SYSTEM FOR INTER-CELL COORDINATION

System and methods for intercell coordination are provided. The system includes a macro terminal and a macro base station that allocate a radio resource for a sounding signal and determine a pattern of a sounding signal, in advance. The macro base station provides a femto base station included in the system with information about the pattern of the sounding signal, and the information about the radio resource of the sounding signal. The femto base station may receive the sounding signal from the macro terminal based on the information, and thus, the femto base station may determine whether the macro terminal exists and may determine a channel between the macro terminal and the femto base station. 1. A transmission power control method of a base station , the method comprising:receiving sounding signal information of a macro terminal from a macro base station;detecting a sounding signal transmitted by the macro terminal, based on the received sounding signal information of the macro terminal; andadjusting the transmission power of the base station based on the power of the detected sounding signal.2. The method of claim 1 , wherein the adjusting comprises:comparing the power of the detected sounding signal with at least one comparison value; andincreasing or decreasing the transmission power based on a result of the comparison.3. A transmission power control method of a base station claim 1 , the method comprising:receiving sounding signal information of a macro terminal from a macro base station;detecting a sounding signal transmitted by the macro terminal based on the received sounding signal information of the macro terminal; and estimating a channel between the macro terminal the base station based on the sound signal and generating a beamforming vector for a femto terminal based on the estimated channel; or', 'receiving information about a channel between the macro terminal and the base station from the macro terminal in response to the detection of the sounding ...

Method for transmitting power offset information of secondary common pilot channel and radio network controller

A method for transmitting power offset information of a secondary common pilot channel and a radio network control, including: after a drift radio network control receives request information sent by a serving radio network control and used for requesting the drift radio network control to feed back power offset information of respective secondary common pilot channels of managed target primary and secondary carrier cells, the drift radio network control setting following kinds of information elements with reference to MIMO pilot modes used respectively by target primary and secondary carrier cells: power offset information of a secondary common pilot channel of a single carrier cell, power offset information of a secondary common pilot channel of a primary carrier cell, and power offset information of a secondary common pilot channel of a secondary carrier cell, and feeding back set information elements to the serving radio network control through an IUR.

POWER CONTROL METHOD AND DEVICE FOR PHYSICAL UPLINK CONTROL CHANNEL

This application discloses a power control method and device of a Physical Uplink Control Channel (PUCCH) in a long term evolution (LTE) advanced system, relates to the technical field of wireless communications and is intended to reasonably determine the signal transmit power of a user equipment (UE) on the PUCCH to thereby improve the power utilization ratio of the user equipment. In this application, upon determining to bundle generated positive acknowledge (ACK)/negative acknowledge (NACK) information, the UE bundles the ACK/NACK information in a predefined bundling scheme, determines the power offset value corresponding to the number of bits carried on the PUCCH according to the bundling scheme and further determines the transmit power of the PUCCH. With the invention, the transmit power of the UE can be determined more reasonably. 1. A power control method of a Physical Uplink Control Channel , PUCCH , in a Long Term Evolution Advanced system , comprising:receiving, by a User Equipment, UE, downlink data and generating positive acknowledgement, ACK,/negative acknowledgment, NACK, information;determining, by the UE, whether to bundle the generated ACK/NACK information;{'sub': 'HARQ', 'determining, by the UE, the parameter value of the number of ACK/NACK bits, n, according to the bundling scheme used for the ACK/NACK information upon determining to bundle the generated ACK/NACK information; and'}{'sub': 'HARQ', 'determining, by the UE, the power offset value corresponding to the number of bits carried on the PUCCH using the parameter value of the number of ACK/NACK bits, n, and then determining the transmit power of the PUCCH based on the power offset value and transmitting the bundled ACK/NACK information on the PUCCH with the transmit power.'}2. The method according to claim 1 , wherein the bundling scheme is one or any combination of a spatial bundling scheme claim 1 , a time-domain bundling scheme claim 1 , a frequency-domain bundling scheme and a bundling ...

METHOD AND APPARATUS FOR POWER CONTROL OF FIRST DATA TRANSMISSION IN RANDOM ACCESS PROCEDURE OF FDMA COMMUNICATION SYSTEM

Transmit power is controlled for a first uplink data transmission on Physical Uplink Shared Channel (PUSCH) during random access channel (RACH) procedure. Power control adjustment for the first PUSCH transmission is performed relative to the power spectral density used for successful PRACH transmission as adjusted for bandwidth difference, etc. The uplink Physical random access channel carries the RACH information that is transmitted by the user equipment (UE) during registrations or base station originated calls. A PRACH is composed of a number of preambles and a message portion. The preambles are a series of radio frequency power “steps” that increase in power according to the power step setting until the maximum number of preambles is reached or the base station acknowledges. Once the UE receives a positive indication, it transmits the message portion of the PRACH which consists of message data and control data with independent power gain control. 1employing a processor executing computer executable instructions stored on a computer readable storage medium to implement following acts:performing transmit power control for transmitting a random access channel preamble sufficient for successful receipt; andsetting transmit power control for a first message transmitted on physical uplink shared channel based at least in part upon the random access channel preamble that was successfully received.. A method for transmit power control of a first message on physical uplink shared channel during a random access channel procedure on physical random access channel, comprising: This is a continuation application of U.S. application Ser. No. 12/489,077, filed Jun. 22, 2009, issued as U.S. Pat. No. 8,494,572 on Jul. 23, 2013, which claims priority to Provisional Application No. 61/075,261 entitled A METHOD AND APPARATUS FOR POWER CONTROL PRACH TO PUSCH filed Jun. 24, 2008, each assigned to the assignee hereof, and each of which is hereby expressly incorporated by reference ...

RANDOM ACCESS TECHNIQUES FOR FIXED DEVICES IN MOBILE BROADBAND NETWORKS

Briefly, in accordance with one or more embodiments, a fixed device performs a cell search to search for one or more cells on a network and determines a transmit power level to communicate with one of the cells of the network. The fixed device sets a frequency of updating the transmit power level for communication with a cell on the network, wherein the frequency of updating the transmit power level is reduced for the fixed device with respect to a mobile device. 1. An article of manufacture comprising a storage medium having instructions stored thereon that , if executed , result in:performing a cell search to search for one or more cells on a network;determining a transmit power level to communicate with one of the cells of the network; andsetting a frequency of updating the transmit power level for communication with the cell on the network, wherein the frequency of updating the transmit power level is reduced for a fixed device with respect to a mobile device.2. An article of manufacture as claimed in claim 1 , wherein the instructions claim 1 , if executed claim 1 , further result in:synchronizing frequency and timing information with cell; andsetting a frequency of updating the frequency and timing information for communication with the cell, wherein the frequency of updating the frequency and timing information is reduced for a fixed device with respect to a mobile device.3. An article of manufacture as claimed in claim 1 , wherein said performing a cell search comprises receiving and processing a primary synchronization signal claim 1 , a secondary synchronization signal claim 1 , or a downlink reference signal claim 1 , or combinations thereof.4. An article of manufacture as claimed in claim 1 , wherein said determining a transmit power level comprising measuring a downlink channel power level and calculating a channel quality indicator.5. An article of manufacture as claimed in claim 1 , wherein the instructions claim 1 , if executed claim 1 , further ...

CHANNEL ESTIMATION IN WIRELESS COMMUNICATION SYSTEMS

A method for uplink channel estimation comprises providing () of a channel state model in a channel estimator. An up-link radio signal of a present time slot is obtained () in the channel estimator as well as a series of transmit power control commands () issued for controlling a transmit power of the uplink radio signal. A delay between the time a transmit power control command is issued and the time that the transmit power control command is applied is estimated () based on measurements of the particular received uplink radio signal. Channel states are adapted () based on a transmit power control command compatible with the estimated delay. After the adaptation, channel states of the present time slot are estimated () in the channel estimator, by tracking the demodulated uplink radio signal with the channel state model. A channel estimator performing such method is also described. 1. A method for uplink channel estimation in a wireless communication system applying transmit power control , the method comprising:providing a channel state model in a channel estimator;obtaining, in said channel estimator, a measured and demodulated received uplink radio signal of a present time slot;estimating channel states of said present time slot, in said channel estimator, by tracking said demodulated uplink radio signal with said channel state model;obtaining a series of transmit power control commands issued for controlling a transmit power of said uplink radio signal;estimating a delay, in units of time slots, between a time a transmit power control command is issued and a time that the transmit power control command is applied, said delay being based on measurements of said particular received uplink radio signal; andadapting channel states of said channel state model before said step of estimating channel states based on a transmit power control command of said series of transmit power control commands compatible with said estimated delay.2. The method according to claim 1 ...

Method and mobile communications device utilizing the same

Embodiments of a method and a mobile communications device utilizing the same are provided. The method is implemented in a mobile communications device, including retrieving a first data from a TPC field of a slot of a radio frame from a downlink dedicated physical channel (DL DPCH), decoding an uplink TPC command based on the first data, and estimating a signal quality based on the first data.

Adjusting Power of a Control Channel Based on a Characteristic of a Message in the Control Channel

An entity, such as a base station, in a wireless communications network performs power control of a control channel based on one or more characteristics of a message in the control channel. For example, the control channel can be a paging channel. The one or more characteristics include, as examples, the size and/or the type of message in the control channel. 121-. (canceled)22. A method for performing wireless communications in a mobile communications network , comprising:a communication device determining a message to be communicated in a control channel;the communication device determining a power level for transmission of the message using the control channel, wherein said determining the power level comprises setting different power levels for different types of messages carried in the control channel, wherein one or more specific power levels are determined if the message is an acknowledgement message;the communication device setting the power level for transmission of the message based on said determining; andafter setting the power level for transmission, the communication device transmitting the message in the control channel using the determined power level.23. The method of claim 22 , wherein said determining the power level is also based on the size of the message.24. The method of claim 23 , wherein said determining the power level comprises using a higher power level for larger messages and using a lower power level for smaller messages.25. The method of claim 22 , wherein said determining the power level comprises using a higher power level for higher priority messages and using a lower power level for lower priority messages.26. The method of claim 22 , wherein the power level for the acknowledgement message is a default power level and wherein a power level for the at least one other message is different than the default power level.27. The method of claim 22 , wherein the control channel comprises a paging channel.28. The method of claim 22 , ...

Adjusting Power of a Control Channel Based on a Characteristic of a Message in the Control Channel

An entity, such as a base station, in a wireless communications network performs power control of a control channel based on one or more characteristics of a message in the control channel. For example, the control channel can be a paging channel. The one or more characteristics include, as examples, the size and/or the type of message in the control channel. 121-. (canceled)22. A method for performing wireless communications in a mobile communications network , comprising:a communication device determining a size and type of a message to be communicated in a control channel;the communication device determining a power level, based on the determined size and type of the message, for transmission of the message using the control channel, wherein said determining the power level comprises setting different power levels for different sizes and types of messages carried in the control channel;the communication device setting the power level for transmission of the message based on said determining; andafter setting the power level for transmission, the communication device transmitting the message in the control channel using the determined power level.23. The method of claim 22 , wherein said determining the power level is based on the communication device determining the message is an acknowledgement message.24. The method of claim 22 , wherein said determining the power level comprises using a higher power level for larger messages and using a lower power level for smaller messages.25. The method of claim 22 , wherein said determining the power level comprises using a higher power level for higher priority messages and using a lower power level for lower priority messages.26. The method of claim 22 , wherein the power level for a first type and size of message is a default power level and wherein a power level for the at least one other message is different than the default power level.27. The method of claim 22 , wherein the control channel comprises a paging ...

METHODS AND DEVICES FOR CONTROLLING UPLINK TRANSMIT POWER AT AN ACCESS TERMINAL

Apparatus and methods are provided to enable a ratcheting of uplink transmit power at an access terminal in a wireless communication network, such that the transmit power is maintained between an upper threshold and a lower threshold. Here, the decision whether to ratchet the power may be based on one or both of the open-loop transmit power and/or the closed-loop transmit power. Moreover, the decision whether to ratchet the transmit power may be based on the power per carrier in a multi-carrier wireless communication network. Other aspects, embodiments, and features are also claimed and described. 1. An access terminal , comprising:a communications interface configured for communicating with an access network over a plurality of carriers;a storage medium; receive an instruction to reduce a transmit power; and', 'if a selected power is less than or equal to a lower threshold, ratchet to hold a portion of the transmit power corresponding to a carrier in the plurality of carriers., 'a processing circuit coupled to the communications interface and the storage medium, the processing circuit configured to2. The access terminal of claim 1 , wherein the selected power is one of a uplink pilot power for the carrier claim 1 , a total transmit power for the carrier claim 1 , an open loop transmit power for the carrier claim 1 , a closed loop transmit power for the carrier claim 1 , a sum of uplink pilot powers for the plurality of carriers claim 1 , a sum of open loop transmit powers for the plurality of carriers claim 1 , a sum of closed loop transmit powers for the plurality of carriers claim 1 , or a sum of total transmit powers for the plurality of carriers.3. The access terminal of claim 2 , wherein the portion of the transmit power is at least one of a closed loop transmit power claim 2 , an open loop transmit power claim 2 , or an uplink pilot power.4. The access terminal of claim 3 , wherein the uplink pilot power for the carrier is a component of the total transmit ...

METHODS AND APPARATUS FOR DOWNLINK PDSCH POWER SETTING

Methods and apparatus for transmitting power setting information in a downlink Physical Downlink Shared Channel (PDSCH) in a communication system. In this communication system, a plurality of methods for calculating traffic-to-pilot ratios (T2P) are established. In addition, a mapping scheme between a plurality of overhead signals and a plurality of reference signal (RS) overhead ratios, η, and the plurality of T2P calculation methods is established. A user-specific T2P ratio P/Pfor certain OFDM symbols, a RS overhead ratio ηand a calculation method selected from the plurality of T2P calculation methods are assigned to a wireless terminal. Then, an overhead signal corresponding to both of the assigned RS overhead ratio ηand the assigned T2P calculation method is selected in accordance with the mapping scheme and is transmitted to the wireless terminal. In addition, the user-specific traffic-to-pilot ratio P/Pis transmitted to the wireless terminal. The wireless terminal may calculate the traffic-to-pilot ratios across different transmission antennas and different OFDM symbols in dependence upon the received traffic-to-pilot ratio P/P, and the RS overhead ratio and the T2P calculation method indicated by the RS overhead signal. 121.-. (canceled)22. A method of determining a downlink transmit power from a base station at a wireless terminal , the base station and the wireless terminal having a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols available for transmission , the method comprising:receiving a signaling parameter from the base station; anddetermining a ratio of a first ratio of traffic data to pilot, T2P, for first OFDM symbols to a second ratio of T2P for second OFDM symbols based on the signaling parameter and a number of cell-specific antenna ports configured in the base station. This application makes reference to, incorporates the same herein, and claims all benefits accruing under 35 U.S.C. §119 from provisional applications ...

POWER CONTROL FOR COMBINED DYNAMICALLY AND PERSISTENTLY SCHEDULED PUSCH IN E-UTRA

A power control scheme for an enhanced Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (E-UTRA) physical uplink shared channel (PUSCH) is disclosed. In a first embodiment, when an uplink grant is configured for accumulation commands, the wireless transmit/receive unit (WTRU) combines the accumulation commands received in both the scheduling grant and the transmit power control physical downlink control channel. In a second embodiment, when an uplink grant is configured for absolute commands, the WTRU resets the accumulation control function immediately after receiving each absolute transmit power control command and then combines the absolute power control with the accumulation power control. 1. A wireless transmit/receive unit (WTRU) comprising:circuitry configured to receive a plurality of types of control information comprising at least a first type for a persistent assignment and for a dynamic assignment comprising transmit power command (TPC) information and scheduling information and a second type comprising TPC information and no scheduling information; andcircuitry configured to accumulate the TPC information from the first type and the second type, on a condition that the first type is received in a subframe and the second type is received in a different subframe; andcircuitry configured to adjust a transmission power level for a dynamically assigned physical uplink shared channel (PUSCH) using at least one open loop component and one closed loop component, wherein the closed loop component is based at least in part on the accumulated TPC information for the persistent assignment and the dynamic assignment.2. The WTRU of claim 1 , wherein the first type and second type of control information is accumulation TPC information.3. The WTRU of wherein the circuitry is further configured to enable accumulation of TPC information and wherein the circuitry does not accumulate the TPC information on a condition that accumulation of TPC ...

METHOD AND APPARATUS FOR CONTROLLING TRANSMIT POWER IN WIRELESS COMMUNICATION SYSTEM

A method and apparatus of controlling transmit power in a wireless communication system is provided. A wireless apparatus selects one transmit mode among a plurality of transmit modes, and determines the transmit power on the basis of the selected transmit mode. The wireless apparatus transmits an uplink channel by using the transmit power. 1. A method for transmitting a control signal in a wireless communication system supporting multiple antenna , the method comprising:transmitting, by a user equipment (UE), a control signal on an uplink control channel,{'sub': 'PUCCH', 'claim-text': {'br': None, 'i': P', 'i', 'P', ',P', '+PL+h', 'n', ',n', 'F', 'M', 'g', 'i, 'sub': PUCCH', 'CMAX(i)', '0', {'sub2': '—'}, 'PUCCH', 'CQI', 'HARQ', 'F', {'sub2': '—'}, 'PUCCH, '()=min{()+Δ()+Δ()+()}'}, 'wherein an uplink transmit power P(i) for the uplink control channel at subframe i is determined by{'sub': 'CMAX(i)', 'where Pis a configured UE transmit power in subframe'}{'sub': 0', {'sub2': '—'}, 'PUCCH, 'Pis a parameter composed based on provisions by a higher layer,'}{'sub': F', {'sub2': '—'}, 'PUCCH, 'Δ(F) is a parameter provided by the higher layer,'}{'sub': CQI', 'HARQ, 'h(n, H) is a PUCCH format dependent value,'}PL is a downlink pathloss estimate calculated in the UE,g(i) is a value relating to a UE specific value, andΔ(M) is a offset value when the uplink control channel is transmitted via two antenna ports.2. The method of claim 1 , wherein the control signal on the uplink control channel is transmitted via two antenna ports.3. The method of claim 1 , wherein the uplink control channel is a physical uplink control channel (PUCCH).4. The method of claim 3 , wherein a list of values of Δ(M) is provided by a base station in accordance with PUCCH formats.6. The method of claim 1 , wherein the control signal includes at least one of a scheduling request claim 1 , an ACK/NACK for hybrid automatic repeat request (HARQ) and a channel quality indicator (CQI).7. The method of claim 1 ...

POWER CONTROL FOR ACK/NACK FORMATS WITH CARRIER AGGREGATION

A system and method for determining a Physical Uplink Control Channel (PUCCH) power control parameter h(n,n) for two Carrier Aggregated (CA) PUCCH formats—PUCCH format 3 and channel selection. The value of h(n,n) may be based on only a linear function of nfor both of the CA PUCCH formats. Based on the CA PUCCH format configured for the User Equipment (UE), the e-Node B (eNB) may instruct the UE to select or apply a specific linear function of nas a value for the power control parameter h(n,n), so as to enable the UE to more accurately establish transmit power of its PUCCH signal. Values for another PUCCH power control parameter—Δ(F)—are also provided for use with PUCCH format 3. A new offset parameter may be signaled for each PUCCH format that has transmit diversity configured 130-. (canceled)31. A method of controlling transmit power of a Physical Uplink Control Channel (PUCCH) signal to be transmitted by a User Equipment (UE) in wireless communication with a processor via a wireless network associated therewith , the PUCCH signal including a number of Channel Quality Indicator (CQI) bits and a number of Hybrid Automatic Repeat Request (HARQ) bits , the method comprising the steps of:using the processor, determining whether a PUCCH format for the PUCCH signal uses transmit diversity; and{'sub': CQI', 'HARQ', 'CQI', 'HARQ', 'CQI', 'HARQ, 'when the PUCCH format is determined to use transmit diversity, selecting an offset parameter for the PUCCH format using the processor, wherein the offset parameter may or may not affect the value of h(n, n), wherein h(n, n) is a power control parameter based on the PUCCH format and wherein the offset parameter affects the transmit power of the PUCCH signal, and wherein nindicates the number of CQI bits and nindicates the number of HARQ bits in the PUCCH signal.'}32. The method of claim 31 , further comprising:using the processor, determining whether a PUCCH format 1a with/without transmit diversity only influences the value of the ...

APPARATUS AND METHOD FOR CONTROLLING TRANSMIT POWER IN A MOBILE COMMUNICATION SYSTEM

In a mobile communication system, an apparatus acquires a first variant amount by which to vary uplink transmit power as requested by a base station, based on a control command issued from the base station. The apparatus controls the uplink transmit power using a second variation amount smaller than the first variant amount when accumulated uplink transmit power obtained by accumulating the first variation amount satisfies a suppression condition for adjusting the uplink transmit power to be outputted. 1. A mobile communication terminal apparatus in a mobile communication system , the mobile communication terminal apparatus comprising: acquire a first variant amount by which to vary uplink transmit power as requested by a base station, based on a control command issued from the base station; and', 'control the uplink transmit power using a second variation amount smaller than the first variant amount when accumulated uplink transmit power obtained by accumulating the first variation amount satisfies a suppression condition for adjusting the uplink transmit power to be outputted., 'a variation amount adjusting unit configured to2. The mobile communication terminal apparatus of claim 1 , further comprising: receive, from the base station, a timing adjustment value for controlling a transmission timing of an uplink transmission signal; and', 'set the suppression condition in accordance with the received timing adjustment value., 'a reference value setting unit configured to3. The mobile communication terminal apparatus of claim 2 , further comprising:a distance change detecting unit configured to detect a change in a distance from the base station, based on the timing adjustment value, whereinthe suppression condition includes a condition regarding a reference value for the uplink transmit power;the reference value setting unit sets the reference value in accordance with the timing adjustment value; andthe variation amount adjusting unit determines that the suppression ...

Terminal apparatus, base station apparatus, transmission method and reception method

Provided is a terminal apparatus in which, a transmission control unit ( 204 ) controls the transmission power of a sounding reference signal (SRS) by use of an offset value relative to the transmission power of a data signal, and a transmission unit ( 206 ) transmits the SRS by use of the transmission power as controlled. If a subframe to be used for transmitting the SRS is a predetermined subframe, the transmission control unit ( 204 ) uses a first offset value to control the transmission power of the SRS. Otherwise, the transmission control unit ( 204 ) uses a second offset value to control the transmission power of the SRS. The second offset value is an offset value that has been established so as to be transmitted to the serving cell of the terminal ( 200 ), and the first offset value is greater than the second offset value.

User equipment, base station and methods related to multiple input multiple output

It is presented a method for controlling multiple input multiple output, MIMO, pilot channel boosting. The method is performed in a user equipment, UE, capable of MIMO transmissions using a primary and a secondary stream. The method comprising the steps of: determining a rank used for uplink transmissions from the UE; and determining a boosting parameter affecting power boosting of an Enhanced Dedicated Physical Control Channel, E-DPCCH, and a Secondary Dedicated Physical Control Channel, S-DPCCH, based on the rank. A corresponding UE, base station and associated method are also presented.

FAST ADAPTIVE POWER CONTROL FOR A VARIABLE MULTIRATE COMMUNICATIONS SYSTEM

A system and a method of controlling transmitter power in a wireless communication system in which user data is processed as a multirate signal in which the user data signal having a first rate is converted into a transmission data signal having a faster second rate for transmission. The transmission power is adjusted on a relatively slow basis based on quality of data received by a receiver of the transmitted data. The transmitter power is determined as a function of the first and second rates such that a change in the data rate in the multiple channels or the rate of the transmission data signal is compensated in advance of a quality of data based adjustment associated with such data rate change. 1. A method , implemented in a user equipment (UE) , comprising:deriving a transmit power level by at least combining a first value with a second value, wherein the first value is derived at least from a pathloss value of a signal from a base station and the second value is derived at least by dividing a number of data elements for transmission by a number of elements in a signal for transmission; andtransmitting the signal to the base station at the derived transmit power level.2. The method of wherein the first value is derived at least from multiplying the pathloss with a parameter claim 1 , and wherein the parameter is configured to have a value in a range between 0 and 1.3. The method of claim 1 , further comprising:receiving power commands from the base station; andderiving the transmit power level from the received power commands.4. The method of claim 1 , further comprising transmitting the signal in a time interval including at least one time slot.5. The method of claim 4 , further comprising deriving the transmit power level on a time interval basis.6. The method of claim 1 , further comprising transmitting the signal as a code division multiple access (CDMA) signal.7. A method claim 1 , implemented in a base station claim 1 , comprising:receiving a signal from ...

Methods and arrangements in a wireless communication system

An object of some embodiments is to enable more dynamic and flexible transmission of reduced-power subframes. Particular embodiments provide a method in a network node. The method comprises transmitting a downlink scheduling assignment for a subframe to a wireless terminal. The scheduling assignment is comprised in control information. The control information further comprises an indication of a power offset that is or will be used for data transmission in the subframe relative to reference signal transmission.

METHOD FOR TRANSMITTING SIGNAL IN WIRELESS ACCESS SYSTEM AND APPARATUS FOR SAME

In the present invention, a method for transmitting a signal in a wireless access system and an apparatus for same are disclosed, which more particularly, comprise the steps of: receiving additional maximum power reduction (A-MPR) according to a first network signaling from a base station, when network signaling that is received from the base station is identical to the first network signaling that is predetermined; reducing maximum transmission power of a terminal using the A-MPR which is received; and transmitting an uplink signal to the base station within the scope of the maximum transmission power of the terminal that is reduced, wherein the A-MPR is outputted by considering interference from frequencies adjacent to a band that is allocated to the terminal. 1. A method for transmitting a signal by a user equipment (UE) in a wireless access system , the method comprising:receiving additional maximum power reduction (A-MPR) according to first network signaling from a base station (BS) when the first network signaling received from the BS is the same as predefined first network signaling;reducing UE maximum transmission power using the received A-MPR; andtransmitting an uplink signal to the BS within a range of the reduced UE maximum transmission power,wherein the A-MPR is calculated in consideration of whether interference occurs in an adjacent frequency of a band allocated to the UE.2. The method of claim 1 , further comprising transmitting at least one of location information of the UE and performance information of a radio frequency (RF) unit installed in the UE to the BS claim 1 ,wherein the A-MPR is calculated using at least one of the location information of the UE and the performance information of the RF unit installed in the UE.3. The method of claim 1 , wherein the A-MPR is calculated using at least one of use information of an adjacent frequency allocated to the UE claim 1 , permissible service interference degree of a system using an adjacent band ...

Method and user equipment for determining scheduling grant

The disclosure discloses a method and User Equipment (UE) for determining Scheduling Grant (SG). The method includes: a non-quantization power gain factor of an Enhanced Dedicated Channel (E-DCH) Dedicated Physical Data Channel (E-DPDCH) required by an E-DCH Transport Format Combination Indicator (E-TFCI) is determined; when a ratio of the non-quantization power gain factor of the E-DPDCH to a power gain factor of a Dedicated Physical Control Channel (DPCCH) is less than a minimum quantized value of Δin a quantization table of Δ, the non-quantization power gain factor of the E-DPDCH required by the E-TFCI is set as a power gain factor of an E-DPDCH corresponding to the minimum quantized value of Δ; otherwise, power gain factors of E-DPDCHs, which are less than or equal to the non-quantization power gain factor of the E-DPDCH, corresponding to various quantized values of Δin the quantization table of Δare determined, and a maximum value selected from the power gain factors of the E-DPDCHs is set as the power gain factor of the E-DPDCH required by the E-TFCI; and a sum of squares is performed on non-quantization power gain factors of various E-DPDCHs required by the E-TFCI, and obtaining SG required by the E-TFCI. By means of the disclosure, the drawback that a UE cannot achieve a maximum rate under an existing method for determining SG in the related art can be solved. 1. A method for determining Scheduling Grant (SG) , comprising:determining a non-quantization power gain factor of an Enhanced Dedicated Channel (E-DCH) Dedicated Physical Data Channel (E-DPDCH) required by an E-DCH Transport Format Combination Indicator (E-TFCI);{'sub': E-DPDCH', 'E-DPDCH', 'E-DPDCH', 'E-DPDCH', 'E-DPDCH, 'when a ratio of the non-quantization power gain factor of the E-DPDCH to a power gain factor of a Dedicated Physical Control Channel (DPCCH) is less than a minimum quantized value of Δin a quantization table of Δ, setting the non-quantization power gain factor of the E-DPDCH ...

POWER CONTROL METHOD AND DEVICE

A power control method and device are used for achieving transmit power control of a User Equipment (UE) in a multi-carrier mode. The power control method includes: calculating a transmit power of a UE when the UE sends data through a plurality of carriers; and performing power compression on each carrier either step by step according to property parameters of each carrier or synchronously according to a compression ratio, when the transmit power of the UE exceeds a preset maximum transmit power. A power control device is further provided. 1. A power control method , comprising:calculating, by a user equipment (UE), a transmit power of the UE when the UE sends data through a plurality of carriers; andperforming, by the UE, power compression on each carrier step by step according to property parameters of each carrier when the transmit power of the UE exceeds a maximum transmit power;wherein the property parameters comprises at least one of an E-DCH Transport Format Combination Indicator (E-TFCI) and a Serving Grant (SG) parameter.2. The method according to claim 1 , wherein when the property parameters is the E-TFCI claim 1 , the performing the power compression on each carrier step by step according to the property parameters of each carrier comprises:performing, by the UE, the power compression on a first carrier, wherein the first carrier is a carrier on which data to be sent having a longest transmission block locates; andperforming, by the UE, the power compression on a next carrier according to a descending order of the transmission block lengths of each carrier data to be sent if the transmit power after the power compression on the first carrier does not satisfy limitation of the maximum transmit power.3. The method according to claim 1 , wherein when the property parameters is the SG parameter claim 1 , the performing the power compression on each carrier step by step according to the property parameters of each carrier comprises:performing, by the UE, the ...

Method and Apparatus for Power Cutback in a Simultaneous Dual Frequency Band Call

A method and apparatus can cut back power in a simultaneous dual frequency band call. The method may operate a dual frequency band transmit device. The method may include determining if a transmit frequency in a first frequency band from the device combined with a transmit frequency in a second frequency band from the device causes receiver desensitization at the device. The method may include determining if the transmit power in the first frequency band is above a threshold power. The method may include reducing maximum transmit power in the second frequency band by an amount proportional to transmit power in the first frequency band and transmit signal bandwidth in the second frequency band in only the portion of the second frequency band where a resultant frequency component can cause desensitization. 122-. (canceled)23. A method of operating a dual frequency band transmit device , the method comprising:determining if a transmit frequency in a first frequency band from the device combined with a transmit frequency in a second frequency band from the device causes receiver desensitization at the device;determining if transmit power in the first frequency band is above a threshold power; andreducing maximum transmit power in the second frequency band by an amount inversely_proportional to transmit signal bandwidth in the second frequency band if the transmit frequency in the first frequency band combined with the transmit frequency in the second frequency band causes receiver desensitization at the device and if the transmit power in the first frequency band is above the threshold power.24. The method according to claim 23 , wherein reducing comprises reducing the maximum transmit power in the second frequency band in only the portion of the second frequency band where a resultant frequency component can cause desensitization.25. The method according to claim 23 , wherein reducing comprises changing the maximum transmit power in the second frequency band in a sub- ...

METHOD AND APPARATUS FOR CANCELLING BUFFER STATUS REPORT IN WIRELESS COMMUNICATION SYSTEM

A method and apparatus for cancelling at least one of a buffer status report (BSR), a power headroom report (PHR) and a scheduling request (SR) in a wireless communication system is provided. A user equipment (UE) triggers at least one of a BSR, a PHR and an SR, and cancels the triggered at least one of BSR, PHR and SR if uplink transmission (UL) transmission is not available. Furthermore, the UE prohibits triggering additional at least one of BSR, PHR and SR until the UL transmission is available. 1. A method for cancelling , by a user equipment (UE) , at least one of a buffer status report (BSR) , a power headroom report (PHR) and a scheduling request (SR) in a wireless communication system , the method comprising:triggering at least one of a BSR, a PHR and an SR; andcancelling the triggered at least one of BSR, PHR and SR if uplink transmission (UL) transmission is not available.2. The method of claim 1 , further comprising prohibiting triggering additional at least one of BSR claim 1 , PHR and SR until the UL transmission is available.3. The method of claim 1 , further comprising:triggering at least one of BSR, PHR and SR if the UL transmission is available;transmitting the triggered at least one of BSR, PHR and SR.4. The method of claim 3 , further comprising cancelling all triggered at least one of BSR claim 3 , PHR and SR.5. The method of claim 1 , wherein the UL transmission is not available when in-device coexistence (IDC) interference occurs.6. The method of claim 1 , wherein if the BSR is triggered claim 1 , the triggered BSR includes a BSR where UL data becomes available for transmission claim 1 , and the UL data belongs to a logical channel with higher priority than priorities of logical channels which belong to any logical channel group (LCG) and for which data is already available for transmission claim 1 ,7. The method of claim 1 , wherein if the BSR is triggered claim 1 , the triggered BSR includes a BSR where UL data becomes available for ...

METHOD FOR UPLINK POWER CONTROL, NETWORK NODE AND SYSTEM

Embodiments of the present invention disclose a method for uplink power control, a network node and a system, which relates to the field of communication technologies, and the method includes: a first network node transmits a first indication message to a second network node, wherein the first indication message includes a time pattern and/or a maximum transmission power for an uplink transmission performed by a user equipment (UE) on the second network node, and the time pattern is used for controlling a transmission time of the uplink transmission performed by the UE. The present invention is applicable to uplink power control for the user equipment UE in a carrier aggregation scenario. 1. A method for uplink power control , comprising:transmitting, by a first network node, a first indication message, to a second network node, wherein the first indication message comprises at least one of a time pattern and maximum transmission power related information for an uplink transmission performed by a user equipment (UE) on the second network node, and the time pattern is used for controlling a transmission time of the uplink transmission performed by the UE.2. The method according to claim 1 , wherein claim 1 , before the transmitting claim 1 , by the first network node claim 1 , the first indication message to the second network node claim 1 , the method further comprises:receiving, by the first network node, a second indication message transmitted by the UE, wherein the second indication message is used for indicating that uplink data, which is buffered by the UE and to be transmitted to the second network node, exceeds a first predetermined threshold; anddetermining, by the first network node, the time pattern and/or the maximum transmission power for the uplink transmission performed by the UE on the second network node.3. The method according to claim 1 , wherein claim 1 , before the transmitting claim 1 , by the first network node claim 1 , the first indication ...

CONFIGURATION METHOD FOR TRANSMITTING TPC COMMAND, TPC COMMAND TRANSMISSION METHOD, AND APPARATUS

A configuration method for transmitting TPC command, a TPC command transmission method, and an apparatus. In the present invention, a radio network controller sends indication information to a terminal and a serving base station of the terminal to indicate a sending timeslot of an uplink TPC command of the terminal, so that sending timeslots of different TPC commands can be indicated for different terminals, and uplink TPC commands of multiple terminals are staggered in a timeslot. In this way, even if F-DPCHs of multiple terminals are configured with a same timeslot format, it can be avoided that locations of the uplink TPC commands are the same, and further a TPC peak-to-average ratio is lower than that in the prior art. 1. A base station , comprising:a processor; anda non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to enable the base station to perform operations including:receiving indication information sent by a radio network controller, wherein the indication information is used to indicate a sending timeslot of an uplink transmission power control (TPC) command of a terminal; andsending an uplink TPC command to the terminal according to the indication information.2. The base station according to claim 1 , wherein in sending timeslots that are of uplink TPC commands and that are indicated for N terminals claim 1 , sending timeslots of uplink TPC commands of at least two terminals are different from each other claim 1 , wherein N is an integer greater than 1.3. The base station according to claim 2 , wherein the sending timeslots of the uplink TPC commands of the N terminals are different from each other.4. The base station according to claim 2 , wherein if sending timeslots of uplink TPC commands of K terminals in the N terminals are the same claim 2 , locations of the uplink TPC commands of the K terminals in a timeslot are different from each other claim 2 , wherein K is an ...

METHOD FOR CONTROLLING TRANSMIT POWER OF A MOBILE STATION

Method and apparatus for controlling a transmit power of a mobile station are disclosed. Mobile stations in direct communication on a cross link (XL) receive control parameters from a base station. A first mobile station (a receiving mobile station) may calculate a correction parameter for power offset for transmissions from a second mobile station (a transmitting mobile station) to the first mobile station, and send it to the second mobile station. The correction parameter may be generated within the maximum and minimum limits. The second mobile station may calculate a transmit power level for a transmission to the first mobile station based on the correction parameter, measurements on resources allocated for cross links for mobile station-to-mobile station direct communications, an interference measurement received from the first mobile station, and a path loss to the first mobile station. 1. A method for use in a wireless transmit receive unit (WTRU) , the method comprising:receiving, from a base station associated with WTRU to WTRU direct communication, power control configuration information for use in WTRU to WTRU direct communication; wherein the power control configuration information includes power control configuration information for an uplink channel from the WTRU to the base station and for a data channel for WTRU to WTRU direct communication and for a control channel for WTRU to WTRU direct communication;transmitting over the uplink channel to the base station at a power level based on a pathloss value added to a first value received in the power control configuration information;transmitting over the data channel, selectively using a power level based on a pathloss value added to a second value received in the power control configuration information or using a power level not based on the pathloss value; andtransmitting over the control channel based on the power control configuration information for the control channel.2. The method of claim 1 , ...

Imbalanced area pilot frequency transmission power enhancement method and base station

An imbalanced area pilot frequency transmission power enhancement method and a base station are provided. In accordance with the transmission power and increment of a main public pilot frequency channel prior to power enhancement, post-power enhancement main public pilot frequency channel transmission power is obtained. The transmission power of a downlink traffic channel is the same as transmission power prior to power enhancement. In accordance with the transmission power of the main public pilot frequency channel prior to power enhancement, the downlink traffic channel transmission power is also obtained. The post-power enhancement main public pilot frequency channel transmission power and the downlink traffic channel transmission power are used to transmit data in the main public pilot frequency channel and the downlink traffic channel, respectively.

Carrier aggregation method performed by terminal in wireless communication system and terminal using same method

The present invention provides a massive carrier aggregating method performed by a terminal in a wireless communication system, the method comprising the steps of: controlling a plurality of sounding reference signal (SRS) transmission powers with respect to a plurality of SRS cells to be triggered, respectively; and simultaneously transmitting a plurality of SRSs relating to the plurality of SRS cells to be triggered to a network, wherein the plurality of SRS transmission powers are different from each other.

SOUNDING REFERENCE SIGNAL TRANSMISSION AND CONFIGURATION METHODS, USER EQUIPMENT, AND NETWORK SIDE DEVICE

The present disclosure provides sounding reference signal transmission and configuration methods, user equipment, and a network side device. The method for sounding reference signal (SRS) transmission includes receiving uplink resources of at least one cell from a network side device, where the uplink resources of each of the at least one cell comprise one or more SRS resource sets. The method further includes selecting, according to a predefined rule, at least one SRS resource set of each of the at least one cell for sending, when in a scenario in which an SRS switches between carriers for sending, where the scenario is configured by the network side device. 1. A method , implemented by a user equipment , for sounding reference signal (SRS) transmission , the method comprising:receiving uplink resources of at least one cell from a network side device, wherein the uplink resources of each of the at least one cell comprise one or more SRS resource sets; andselecting, according to a predefined rule, at least one SRS resource set of each of the at least one cell for sending, when in a scenario in which an SRS switches between carriers for sending, wherein the scenario is configured by the network side device.2. The method according to claim 1 , wherein selecting claim 1 , according to a predefined rule claim 1 , at least one SRS resource set of each of the at least one cell for sending claim 1 , when in a scenario in which an SRS switches between carriers for sending claim 1 , wherein the scenario is configured by the network side device comprises at least one of the following:selecting an SRS resource set for usage of beam management, codebook-based transmission, non-codebook-based transmission and antenna switching;selecting an SRS resource set for a same purpose as those on a cell currently with a Physical Uplink Shared Channel (PUSCH) transmission; andselecting an SRS resource set with an SRS resource set mark of N, wherein N is an integer not less than 0.3. The ...

TECHNIQUES FOR REDUCING TRANSMISSION DELAYS IN MULTI-CARRIER WIRELESS COMMUNICATIONS

Aspects related to performing power control over a secondary carrier are described. At least one parameter can be received for performing power control over a carrier with a cell. Based on the at least one parameter, at least one alternative parameter can be determined for performing a power control procedure for a secondary carrier with the cell, and the power control procedure for the secondary carrier with the cell can be performed based at least in part on the at least one alternative parameter. The at least one alternative parameter may result in a power control procedure for the secondary carrier that takes less time than a power control procedure for the primary carrier with the cell. 1. A method of performing power control over a secondary carrier , comprising:receiving at least one parameter for performing power control over a primary carrier with a cell;determining, based on the at least one parameter, at least one alternative parameter for performing a power control procedure for a secondary carrier with the cell; andperforming the power control procedure for the secondary carrier with the cell based at least in part on the at least one alternative parameter.2. The method of claim 1 , wherein determining the at least one alternative parameter comprises receiving the at least one alternative parameter from the cell along with the at least one parameter claim 1 , wherein the at least one parameter relates to performing the power control procedure over the primary carrier.3. The method of claim 2 , wherein the at least one parameter and the at least one alternative parameter each include a power control preamble duration and a signaling radio bearer delay.4. The method of claim 1 , wherein determining the at least one alternative parameter comprises computing a fraction of the at least one parameter claim 1 , wherein the at least one parameter relates to performing the power control procedure over the primary carrier.5. The method of claim 4 , wherein the at ...

SETTING INITIAL TRANSMISSION POWER FOR A SECONDARY CARRIER AFTER A TRANSMISSION GAP

A method and system for setting an initial dedicated physical control channel (DPCCH) power of a secondary carrier after a transmission gap are disclosed. According to one aspect, a method includes determining a filtered DPCCH power of first carrier. The method further includes determining a power offset. The method also includes calculating the initial DPCCH power of the secondary carrier by adding the determined filtered DPCCH power of the first carrier to the determined power offset. 1. A method of setting an initial dedicated physical control channel , DPCCH , power of a secondary carrier after a transmission gap , the method comprising:determining a filtered DPCCH power of first carrier;determining a power offset; andcalculating the initial DPCCH power of the secondary carrier by adding the determined filtered DPCCH power of the first carrier to the determined power offset.2. The method of claim 1 , wherein the first carrier is a primary carrier.3. The method of claim 1 , wherein determining the filtered value of DPCCH power of the first carrier includes determining filtered power of a combination of the secondary carrier and a primary carrier.4. The method of claim 1 , wherein the power offset is based at least in part on a difference between a target signal to interference ratio claim 1 , SIR claim 1 , of the secondary carrier and a target SIR of the first carrier.5. The method of claim 1 , wherein the power offset is based at least in part on a difference between signal to interference ratios claim 1 , SIR claim 1 , associated with different data transmission rates.6. The method of claim 1 , wherein the power offset is based at least in part on a difference between a rise over thermal noise claim 1 , RoT claim 1 , of the primary and secondary carrier.7. The method of claim 1 , wherein the determined filtered DPCCH power of the first carrier is determined according to a first order discrete filter.10. The method of claim 8 , wherein α is dependent upon a ...

TRANSMISSION POWER DETERMINATION METHOD, COMMUNICATION DEVICE AND PROGRAM

An electronic device comprising circuitry that controls transmitting signals through a first communication link toward a base station or a second communication link toward a mobile station. The second communication link uses an uplink resource of the first communication link. The circuity determines transmission power for the second communication link based on a first parameter and a second parameter. The first parameter indicates a signal level, a power level, or a noise level in the first communication link. The second parameter corresponds to path loss information for the first communication link. 1. An electronic device comprising: control transmitting signals through a first communication link between the electronic device and a base station or a second communication link between the electronic device and a mobile station, the second communication link being a device-to-device communication link that makes use of an uplink resource of the first communication link; and', 'determine transmission power for the second communication link based on a first parameter and a second parameter,', 'wherein', 'the first parameter indicates at least one of a signal level and a power level in the first communication link,', 'the second parameter corresponds to path loss information for the first communication link, and', 'the transmission power for the second communication link is further determined based on a third parameter related to bandwidth information in the second communication link., 'circuitry configured to2. The electronic device of claim 1 , wherein the uplink resource comprises at least one frequency multiplexed uplink resource.3. The electronic device of claim 1 , wherein the first parameter is received from the base station.4. The electronic device of claim 1 , wherein the path loss information comprises a path loss level from a mobile device to a base station in the first communication link.5. A method comprising:controlling transmitting signals through a first ...

Power Control for Enhancement of Physical Uplink Control Channel (PUCCH) Reliability for 5th Generation (5G) New Radio (NR)

A mobile station and base station are presented where RRC messages are used for configuring a number of repetitions in a time domain for a PUCCH format 0. If a first number of repetitions has been previously configured, the UCI is repeatedly transmitted in continuous symbols based on the first number of repetitions. RRC messages can also be used to enable frequency hopping in a frequency domain for the PUCCH format 0, where the number of repetitions in the time domain is applied per hop in the frequency domain. Otherwise, RRC messages may include transmission power parameters whose selection is responsive to the type of RNTI used for scheduling PDSCH communications. A first set of parameters is used if a C-RNTI is used for scheduling the PDSCH, and a second set is used when a RNTI, different from a C-RNTI, is used for scheduling of the PDSCH. 1. A mobile station comprising:receiving circuitry configured to receive a Radio Resource Control (RRC) message with a first set of transmission power parameters and a second set of transmission power parameters;transmitting circuitry configured to transmit uplink control information (UCI) using a physical uplink control channel (PUCCH) format 0, the UCI being transmitted based upon a set of power parameters selected from the group consisting of the first set of transmission power parameters and the second set of transmission power parameters, responsive to the type of Radio Network Temporary Identifier (RNTI) used for scheduling physical downline shared channel (PDSCH) communications;wherein the number of bits supported for the UCI using the PUCCH format 0 is selected from the group consisting of 1 bit and 2 bits; and,wherein a low-Peak to Average Power Ratio (low-PAPR) sequence is used for the PUCCH format 0.2. The mobile station of wherein the transmitting circuitry transmits using the first set of transmission power parameters for the UCI when a Cell-Radio Network Temporary Identifier (C-RNTI) is used for scheduling the ...

TERMINAL AND COMMUNICATION METHOD

In a terminal, in a slot having allocated thereto both an uplink control channel (PUCCH) and an uplink channel (PUSCH) that includes uplink data, in a case where the difference between the power spectrum density (PSD) of the PUCCH and the PSD of the PUSCH is greater than a threshold value (permitted difference), a control unit drops symbols of the PUSCH in a transmission interval for the PUSCH overlapping with a transmission interval for the PUCCH. A transmission unit transmits at least the PUCCH in the slot. 1. A terminal comprising:circuitry, which, in operation, in a slot having allocated thereto both an uplink control channel (PUCCH) and an uplink channel (PUSCH) that includes uplink data, in a case where a difference between a power spectrum density (PSD) of the PUCCH and the PSD of the PUSCH is greater than a threshold value, drops a symbol of the PUSCH in a transmission interval for the PUSCH overlapping with a transmission interval for the PUCCH; anda transmitter, which, in operation, transmits at least the PUCCH in the slot.2. A terminal comprising:circuit, which, in operation, in a slot having allocated thereto both an uplink control channel (PUCCH) and an uplink channel (PUSCH) that includes uplink data, in a case where a difference between a power spectrum density (PSD) of the PUCCH and the PSD of the PUSCH is greater than a threshold value, drops a portion of resources of frequency resources to which the PUSCH is allocated in a transmission interval for the PUSCH overlapping with a transmission interval for the PUCCH; anda transmitter, which, in operation, transmits the PUCCH, and the PUSCH for which the portion of a frequency band has been dropped, in the slot.3. A terminal comprising:circuitry, which, in operation, in a slot having allocated thereto both an uplink control channel (PUCCH) and an uplink channel (PUSCH) that includes uplink data, in a case where a difference between a power spectrum density (PSD) of the PUCCH and the PSD of the PUSCH is ...

APPARATUS AND METHOD FOR CONTROLLING UPLINK POWER OF MOBILE STATION

The present invention relates to an apparatus and method for controlling the uplink power of a mobile station. In the method for controlling uplink power of a mobile station in a wireless communication system, an uplink control channel allocated by a base station is received. A location at which power control information is to be received is determined based on the uplink control channel. Uplink power is controlled based on the power control information at the determined location. 1. A method for controlling uplink power of a mobile station in a wireless communication system , comprising:receiving an uplink control channel allocated by a base station;determining a location at which power control information is to be received, based on the uplink control channel; andcontrolling uplink power based on the power control information at the determined location.2. The method of claim 1 , wherein determining the location at which the power control information is to be received comprises:comparing reception processing time (T_rxProc) with a number of uplink subframes (UL) configured in a single frame, wherein the reception processing time includes time at which the power control information transmitted from the base station is received by the mobile station, and time at which feedback information of the power control information, transmitted from the mobile station, is received by the base station; anddetermining the location at which the power control information is to be received in the downlink subframes (DL) configured in the single frame, based on results of the comparison.4. The method of claim 3 , wherein determining the location at which the power control information is to be received in the downlink subframes (DL) is configured to claim 3 , if T_rxProc is less than or equal to U−1 for the number of uplink subframes (U) in accordance with formula (1) claim 3 , determine (s mod T)-th location in a floor(s/T)-th downlink subframe of an (i+1)-th frame to be the location ...

METHOD FOR TRANSMITTING OR RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

A method for a user equipment (UE) to transmit an uplink signal in a wireless communication system according to an embodiment of the present invention includes the steps of: determining a data transmission mode; and transmitting to a base station through a competition resource region, a control channel carrying control information including the data transmission mode, a data channel carrying at least one transmission block (TB), and a preamble, wherein the preamble indicates the position of a resource to which the control channel is mapped in the competition resource region, and the data transmission mode determined by the UE can correspond to one among a first transmission mode in which 1 TB is transmitted by being divided into N sub-blocks or a second transmission mode in which 1 TB is repeatedly transmitted M times. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, the base station or a network. 1. A method of transmitting an uplink signal by a user equipment (UE) in a wireless communication system , the method comprising:determining a data transmission mode; andtransmitting, to a base station, a control channel carrying control information including the data transmission mode, a data channel carrying at least one transport block (TB), and a preamble in a contention resource region,wherein the preamble indicates a location of a resource to which the control channel is mapped within the contention resource region, andwherein the data transmission mode determined by the UE corresponds to either a first transmission mode where one TB is divided into N sub-blocks and then transmitted or a second transmission mode where the one TB is repeatedly transmitted M times.2. The method of claim 1 , wherein when the data transmission mode corresponds to the second transmission mode claim 1 , the control information further includes a redundancy version pattern for the M-times repeated transmission.3. The method ...

WIRELESS COMMUNICATION SYSTEM, TRANSMISSION POWER CONTROL APPARATUS, BASE STATION APPARATUS, PARAMETER PROVIDING APPARATUS, AND TRANSMISSION POWER CONTROL METHOD

A wireless communication system includes a first base station (), a plurality of second base stations (- and -) and a control apparatus (). The first base station forms a first cell (). The plurality of second base stations (- and -) forms a plurality of second cells (- and -) each including a portion thereof partially overlapping with the first cell. The control apparatus () executes uplink transmission power control for a target second cell (-) by using a resource parameter (R1) which increases and decreases in accordance with a sum of usage amounts or sum of usage rates of uplink resources in the plurality of second cells (- and -). 1. A wireless communication system comprising:a first base station that forms a first cell;a plurality of second base stations that form a plurality of second cells each having an area smaller than that of the first cell and each including a portion thereof partially overlapping with the first cell; anda control apparatus configured to execute uplink transmission power control for a target cell included in the plurality of second cells by using a resource parameter which increases and decreases in accordance with a sum of usage amounts or sum of usage rates of uplink resources in the plurality of second cells.2. The wireless communication system according to claim 1 , wherein the resource parameter is determined to reduce an uplink transmission power of a mobile station belonging to the target cell when the sum of the usage quantities or the sum of the usage rates increases.3. The wireless communication system according to claim 1 , wherein the resource parameter includes a parameter depending on the sum of the usage rates.4. The wireless communication system according to claim 1 , wherein the resource parameter includes (a) the sum of the usage rates claim 1 , or (b) an average value of the sum of the usage rates and the number of the plurality of second cells.5. The wireless communication system according to claim 1 , wherein the ...

UPLINK POWER CONTROL METHOD, USER EQUIPMENT, AND BASE STATION

The present invention provides an uplink power control method, user equipment, and a base station. The user equipment includes: a receiver, configured to receive first radio resource control protocol RRC configuration information sent by a first base station, where the first RRC configuration information includes a parameter used to calculate a power headroom PH that is of the UE and that is in a first cell controlled by the first base station; and a transmitter, configured to send second RRC configuration information to a second base station. The user equipment provided in the embodiments of the present invention is applicable to a scenario in which both RRC functions of two cells are controlled by means of RRC of one base station, and moreover, when two base stations use independent RRC, transmit power of the UE can also be effectively controlled, thereby improving uplink power control compatibility. 1. User equipment , comprising:a receiver, configured to receive first radio resource control(RRC) configuration information sent by a first base station, wherein the first RRC configuration information comprises a parameter used to calculate a power headroom PH that is of the UE and that is in a first cell controlled by the first base station; anda transmitter, configured to send second RRC configuration information to a second base station, wherein the second RRC configuration information comprises the parameter used to calculate the PH that is of the UE and that is in the first cell.2. The user equipment according to claim 1 , wherein the second RRC configuration information is used by the second base station to control transmit power that is of the UE and that is in a second cell controlled by the second base station.3. The user equipment according to claim 1 , wherein if the first base station supports a time division duplex TDD mode claim 1 , the second RRC configuration information further comprises subframe ratio information claim 1 , wherein the subframe ...

Uplink Power Control in a Wireless Device

A wireless device receives a media access control (MAC) activation command indicating activation of a plurality of physical uplink control channel (PUCCH) secondary cell. The wireless device receives, on a secondary cell in the plurality of cells, downlink control information comprising a PUCCH transmit power control (TPC) command. The wireless device calculates, a transmit power of the secondary PUCCH, employing the PUCCH TPC command only if the secondary PUCCH group comprises the secondary cell. The wireless device transmits uplink signals on the secondary PUCCH with the transmit power. 1. A method comprising: a primary PUCCH group comprising a primary cell with a primary PUCCH; and', 'a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH;, 'receiving, by a wireless device, at least one message comprising configuration parameters of a plurality of cells grouped into a plurality of physical uplink control channel (PUCCH) groups comprisingreceiving a media access control (MAC) activation command indicating activation of the PUCCH secondary cell;receiving, on a secondary cell in the plurality of cells, downlink control information comprising a PUCCH transmit power control (TPC) command;calculating, a transmit power of the secondary PUCCH, employing the PUCCH TPC command only if the secondary PUCCH group comprises the secondary cell; andtransmitting uplink signals on the secondary PUCCH with the transmit power.2. The method of claim 1 , wherein the downlink control information is received in a wireless device specific search space of a physical downlink control channel of the secondary cell.3. The method of claim 1 , wherein the at least one message comprises:one or more first PUCCH information elements (IEs) indicating one or more PUCCH formats of the secondary PUCCH; andone or more second PUCCH power control IEs indicating a power parameter value for at least one of the one or more PUCCH formats;wherein the calculating, the transmit power ...

METHOD OF CONTROLLING TRANSMIT POWER OF UPLINK CHANNEL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

A method for a user equipment to control transmit power of an uplink channel in a wireless communication system is disclosed in the present invention. The method includes the steps of setting a power control parameter to each of a plurality of power control processes, selecting a specific beam from among a plurality of beams, determining a specific power control process corresponding to the selected specific beam from among a plurality of the power control processes, adjusting transmit power of each of a plurality of symbols for the uplink channel according to a power control parameter set to the specific power control process, and transmitting the uplink channel to an eNB according to the adjusted transmit power. 1. A method of controlling transmit power of an uplink channel , which is controlled by a user equipment (UE) in a wireless communication system , the method comprising:setting a power control parameter to each of a plurality of power control processes;selecting a specific beam from among a plurality of beams;determining a specific power control process corresponding to the selected specific beam from among a plurality of the power control processes;adjusting transmit power of each of a plurality of symbols for the uplink channel according to a power control parameter set to the specific power control process; andtransmitting the uplink channel to an eNB according to the adjusted transmit power.2. The method of claim 1 , further comprising the step of setting energy per resource element (EPRE) ratio corresponding to a ratio between EPRE of a first resource element for a data and EPRE of a second resource element for a reference signal contained in the uplink channel to each of a plurality of the symbols for the uplink channel3. The method of claim 2 , wherein the step of adjusting the transmit power of the uplink channel comprises the steps of:determining transmit power of the first resource element contained in each symbol according to the power control ...

Communication system

A communication system in which a mobile communication device communicates with communication apparatus of the communication system uses radio frames that include a plurality of sub-frames. The mobile communication device receives information for use in identifying a first power ratio, said first power ratio representing a ratio of a power used by the communication apparatus for transmitting a reference signal to a first power used for transmitting data in a first sub-frame of a radio frame. The mobile communication device receives information for use in identifying and a second power ratio, the second power ratio representing a ratio of a power used by the communication apparatus for transmitting a reference signal to a second power used for transmitting data in a second sub-frame of said radio frame. The mobile communication device generates a measurement report including information calculated in dependence on at least one of the first and second power ratio.

RESOURCE INDEXING FOR ACKNOWLEDGEMENT SIGNALS IN RESPONSE TO RECEPTIONS OF MULTIPLE ASSIGNMENTS

A method and apparatus for transmitting, by a user equipment, a hybrid automatic repeat request acknowledgement (HARQ-ACK) are provided. The method includes identifying power of the HARQ-ACK based on transmission power control information in first downlink control information; identifying a resource for transmission of the HARQ-ACK based on transmission power control information in second downlink control information with a downlink assignment index (DAI) value greater than 1; and transmitting the HARQ-ACK based on the resource. 1. A method for transmitting , by a user equipment , a hybrid automatic repeat request acknowledgement (HARQ-ACK) , the method comprising:identifying power of the HARQ-ACK based on transmission power control information in first downlink control information;identifying a resource for transmission of the HARQ-ACK based on transmission power control information in second downlink control information with a downlink assignment index (DAI) value greater than 1; andtransmitting the HARQ-ACK based on the resource.2. The method of claim 1 , wherein the transmission power control information in the second downlink control information with the DAI value greater than 1 indicates the resource among a set of resources configured by a base station.3. The method of claim 2 , wherein the user equipment assumes that the resource is the same for all second downlink control information used to identify the resource.4. The method of claim 1 , wherein HARQ-ACK bits for all subframes are jointly coded.5. The method of claim 1 , wherein the resource is used for resource selection.6. A method for receiving claim 1 , by a base station claim 1 , a hybrid automatic repeat request acknowledgement (HARQ-ACK) claim 1 , the method comprising:transmitting transmission power control information in first downlink control information for power of the HARQ-ACK;transmitting transmission power control information in second downlink control information with a downlink assignment ...

RESOURCE INDEXING FOR ACKNOWLEDGEMENT SIGNALS IN RESPONSE TO RECEPTIONS OF MULTIPLE ASSIGNMENTS

A method and apparatus for transmitting, by a user equipment, a hybrid automatic repeat request acknowledgement (HARQ-ACK) are provided. The method includes identifying a transmission power of the HARQ-ACK based on transmission power control information in first downlink control information for a primary cell; identifying, for a time division duplexing (TDD), a resource for transmission of the HARQ-ACK based on transmission power control information in second downlink control information with a downlink assignment index (DAI) value greater than 1; and transmitting the HARQ-ACK to a base station based on the resource on the primary cell. 1. A method for transmitting , by a user equipment , a hybrid automatic repeat request acknowledgement (HARQ-ACK) , the method comprising:identifying a transmission power of the HARQ-ACK based on transmission power control information in first downlink control information for a primary cell;identifying, for a time division duplexing (TDD), a resource for transmission of the HARQ-ACK based on transmission power control information in second downlink control information with a downlink assignment index (DAI) value greater than 1; andtransmitting the HARQ-ACK to a base station based on the resource on the primary cell.2. The method of claim 1 , wherein the transmission power control information in the second downlink control information with a DAI value greater than 1 indicates the resource among a set of resources configured by the base station.3. The method of claim 2 , wherein the user equipment assumes that the resource is the same for all second downlink control information used to identify the resource.4. The method of claim 1 , wherein bits of the HARQ-ACK for all subframes are jointly coded.5. The method of claim 1 , wherein the resource is used for resource selection.6. A method for receiving claim 1 , by a base station claim 1 , a hybrid automatic repeat request acknowledgement (HARQ-ACK) claim 1 , the method comprising: ...

RESOURCE INDEXING FOR ACKNOWLEDGEMENT SIGNALS IN RESPONSE TO RECEPTIONS OF MULTIPLE ASSIGNMENTS

An apparatus and method for transmitting, by a user equipment, a hybrid automatic repeat request acknowledgement (HARQ-ACK) are provided. The method includes identifying power of the HARQ-ACK based on transmission power control information in first downlink control information for a primary cell; identifying, for frequency division duplexing (FDD) and a plurality of configured cells, a resource for transmission of the HARQ-ACK based on transmission power control information in second downlink control information for a secondary cell; and transmitting the HARQ-ACK based on the resource on the primary cell. 1. A method for transmitting , by a user equipment , a hybrid automatic repeat request acknowledgement (HARQ-ACK) , the method comprising:identifying power of the HARQ-ACK based on transmission power control information in first downlink control information for a primary cell;identifying, for frequency division duplexing (FDD) and a plurality of configured cells, a resource for transmission of the HARQ-ACK based on transmission power control information in second downlink control information for a secondary cell; andtransmitting the HARQ-ACK based on the resource on the primary cell.2. The method of claim 1 , wherein the transmission power control information in the second downlink control information indicates the resource among a set of resources configured by a base station.3. The method of claim 2 , wherein the user equipment assumes that the resource is the same for all second downlink control information used to identify the resource.4. The method of claim 1 , wherein bits of the HARQ-ACK for all cells are jointly coded.5. The method of claim 1 , wherein the resource is used for resource selection.6. A method for receiving claim 1 , by a base station claim 1 , a hybrid automatic repeat request acknowledgement (HARQ-ACK) claim 1 , the method comprising:transmitting transmission power control information in first downlink control information for a primary cell ...

RESOURCE INDEXING FOR ACKNOWLEDGEMENT SIGNALS IN RESPONSE TO RECEPTIONS OF MULTIPLE ASSIGNMENTS

A method and apparatus for transmitting, by a user equipment, a hybrid automatic repeat request acknowledgement (HARQ-ACK) are provided. The method includes identifying power of the HARQ-ACK based on transmission power control information in first downlink control information for a primary cell; identifying, for a time division duplexing (TDD) and a plurality of configured cells, a resource for transmission of the HARQ-ACK based on transmission power control information in second downlink control information with a downlink assignment index (DAI) value greater than 1; and transmitting the HARQ-ACK based on the resource on the primary cell. 1. A method for transmitting , by a user equipment , a hybrid automatic repeat request acknowledgement (HARQ-ACK) , the method comprising:identifying power of the HARQ-ACK based on transmission power control information in first downlink control information for a primary cell;identifying, for a time division duplexing (TDD) and a plurality of configured cells, a resource for transmission of the HARQ-ACK based on transmission power control information in second downlink control information with a downlink assignment index (DAI) value greater than 1; andtransmitting the HARQ-ACK based on the resource on the primary cell.2. The method of claim 1 , wherein the transmission power control information in the second downlink control information with a DAI value greater than 1 indicates the resource among a set of resources configured by a base station.3. The method of claim 2 , wherein the user equipment assumes that the resource is the same for all second downlink control information used to identify the resource.4. The method of claim 1 , wherein bits of the HARQ-ACK for all subframes are jointly coded.5. The method of claim 1 , wherein the resource is used for resource selection.6. A method for receiving claim 1 , by a user equipment claim 1 , a hybrid automatic repeat request acknowledgement (HARQ-ACK) claim 1 , the method comprising: ...

METHOD FOR PROCESSING BEAM FAILURE, AND TERMINAL

A method for processing beam failure and a terminal are provided by the present disclosure. The method includes: determining a BFR event, wherein the beam failure recovery event includes an abnormality occurring in a BFR procedure or at least two cells both undergoing a BFR; executing a specific operation according to the BFR event. 1. A method for processing beam failure , applied to a terminal , comprising:determining a beam failure recovery event, wherein the beam failure recovery event comprises that an abnormality occurs in a beam failure recovery procedure or at least two cells both undergo a beam failure recovery;executing a specific operation according to the beam failure recovery event.2. The method according to claim 1 , wherein that the abnormality occurs in the beam failure recovery procedure comprises that a beam failure occurs in a first cell during a beam failure recovery procedure performed in the first cell claim 1 , or a beam failure occurs in a second cell during the beam failure recovery procedure performed in the first cell.4. The method according to claim 3 , wherein in case of reporting to the upper layer the beam failure occurring in the first cell claim 3 , a radio link failure (RLF) is triggered claim 3 , an out-of-sync counter is incremented claim 3 , or a timer corresponding to a radio link monitoring (RLM) or RLF is started; not triggering a beam failure recovery procedure in the second cell;', 'not triggering in the first cell a beam failure recovery procedure for the beam failure occurring in the second cell;', 'not triggering in the first cell and the second cell a beam failure recovery procedure for the beam failure occurring in the second cell;, 'the ignoring the beam failure occurring in the second cell comprises at least one of not triggering a beam failure recovery in the first cell;', 'not triggering in the second cell a beam failure recovery procedure for the beam failure occurring in the first cell;', 'not triggering in the ...

TRANSMISSION POWER CONTROL METHOD, COMMUNICATION DEVICE AND PROGRAM

There is provided a method for controlling a transmission power in a second communication service making secondary usage of a spectrum assigned to a first communication service, with use of any node of one or more secondary usage node that transmits a radio signal of the second communication service, comprising the steps of: acquiring an acceptable interference power allocated to the second communication service; calculating a total sum of interference power levels on the first communication service based on transmission powers respectively required for the one or more secondary usage node; and excluding any secondary usage node of the one or more secondary usage node from allocation of the transmission power when the calculated total sum of interference power levels is larger than the acceptable interference power. 117-. (canceled)18. A secondary usage node comprising: operate a second communication service using a part or whole of a spectrum assigned to a first communication service;', 'transmit location information of the secondary usage node to a management node;', 'acquire an acceptable transmission power that is determined by the management node based on the location information of the secondary usage node; and', 'allocate transmission power to at least one terminal device., 'processing circuitry configured to19. The secondary usage node of claim 18 , wherein the processing circuitry is configured to:allocate the transmission power to the at least one terminal device based on the acceptable transmission power.20. The secondary usage node of claim 18 , wherein the location information further includes additional location information of additional secondary usage nodes other than the secondary usage node.21. The secondary usage node of claim 18 , wherein the processing circuitry is configured to:acquire the acceptable transmission power by receiving at least one beacon from the management node.22. The secondary usage node of claim 18 , wherein the processing ...

Method and apparatus for indicating power allocation in multiuser superposition transmission

Embodiments of the present disclosure provide a method and apparatus for indicating power allocation in multiuser superposition transmission. The method comprises: transmitting a signaling for indicating a first power parameter and a first power offset to a first UE so that the first UE determines first power allocation information specific to it based on the first power parameter and the first power offset; and transmitting a signaling for indicating a second power parameter and a second power offset to a second UE paired with the first UE so that the second UE determines second power allocation information specific to it based on the second power parameter and the second power offset. Embodiments of the present disclosure enable the near/victim UE of paired UEs to decode an interference signal caused by far/interfering UE based on power allocation information and remove the interference signal caused by far/interfering UE to improve correctness of decoding its own physical downlink shared channel data.

WIRELESS COMMUNICATION APPARATUS, MOBILE TERMINAL AND WIRELESS COMMUNICATION METHOD

Provided are a frequency channel allocating section () that allocates frequency channels, a terminal reception quality information processing section () that calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section () that controls a level of transmit power for each subcarrier, and a determining section () that checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or is a limited band terminal capable of receiving only part of frequencies, and when the communicating apparatus is the limited band terminal, the transmit power of all or part of subcarriers is decreased in a frequency channel that is adjacent to a reception band allocated to the communicating apparatus and that is allocated to another communicating apparatus. 1 transmit first data to a first terminal apparatus using one of the plurality of frequency channels, wherein the base station apparatus is configured to set an unused band that is not used for communication, wherein the unused band is positioned between at least two frequency channels adjacent to the one of the plurality of frequency channels, and', 'transmit second data to a second terminal apparatus using the plurality of frequency channels based on a capability of the second terminal apparatus; and, 'a transmission unit configured toa reception unit configured to periodically receive, from the first terminal apparatus and the second terminal apparatus, reception quality information for a frequency channel used when transmitting data.. A base station apparatus for an OFDMA system using a plurality of frequency channels, the base station apparatus comprising: This is a Continuation Application of co-pending application Ser. No. 15/009,351, filed on Jan. 28, 2016, which is a Continuation of application Ser. No. 12/984,457, filed on Jan. ...

Power control method, power control system and related device

The present invention discloses a power control method, a power control system and a related device. The method includes: monitoring a downlink data sending condition of a dedicated physical data channel (DPDCH), and if no downlink data is sent on the DPDCH, determining to decrease downlink transmit power of a DPCH, or if downlink data is sent on the DPDCH, determining to increase or maintain downlink transmit power of a DPCH. The present invention can reduce the downlink transmit power of the DPCH and promote experience of other users on a precondition of ensuring system performance.

SYSTEMS AND METHODS FOR UPLINK TRANSMISSION POWER CONTROL

A user equipment (UE) for performing uplink transmission power control is described. The UE includes a processor and memory in electronic communication with the processor. The UE determines that dual connectivity is configured with more than one cell group. The UE also determines if a total transmission power of the cell groups exceeds a maximum allowed transmission power of the UE. The UE further determines if the cell groups are asynchronized and whether look-ahead with processing time reduction is supported by the UE. The UE additionally determines an available transmission power in a subframe of a given cell group. The UE also transmits uplink (UL) channels in a subframe based on the available transmission power of the given cell group.

DOWNLINK INFORMATION PROCESSING METHOD AND DEVICE

Embodiments of the present invention provide a downlink information processing method and a device. The method includes: determining, by UE, whether a communication link between a cell in an active set and the UE meets a preset communication quality requirement; and if the communication link between the cell in the active set and the UE does not meet the preset communication quality requirement, stopping, by the UE, processing downlink information that is sent from a base station by using the communication link; therefore, transmission performance of the UE is not affected.

METHOD AND TERMINAL FOR TRANSMITTING POWER HEADROOM REPORT IN DUAL CONNECTION BETWEEN TERMINAL AND BASE STATION

One disclosure of the present specification provides a method for receiving downlink data in a wireless communication system supporting 256 QAM. The method for receiving downlink data in a wireless communication system supporting 256 QAM comprises the steps of: receiving configuration information about power back-off; receiving downlink data transmitted on the basis of the configuration information about power back-off; and demodulating the received downlink data on the basis of the configuration information about power back-off, wherein the configuration information about power back-off may comprise information related to at least one of the following: whether to apply power back-off, the reduced amount of power of downlink data by power back-off, a frame index to which power back-off is applied, a subframe index and a resource to which power back-off is applied. 117-. (canceled)18. A method for transmitting a power headroom report (PHR) , the method performed by a terminal and comprising:receiving, by the terminal with dual connectivity to two cell groups, a configuration of a PHR mode;generating, by the UE, the PHR based on the received configuration of the PHR mode; andtransmitting the generated PHR to a serving cell belonging to one cell group among two cell groups,wherein the PHR mode indicates whether a mode for computing a power headroom for the other cell group is a real mode or a virtual mode, andwherein if the mode for computing the power headroom is the virtual mode, the generating the PHR includes computing the power headroom based on an assumption that at least one of PUSCH and PUCCH is not transmitted on any serving cell of the other cell group.19. The method of claim 18 , wherein if the mode for computing the power headroom is the virtual mode claim 18 , the power headroom is computed based on a predetermined reference format.20. The method of claim 18 , wherein if the mode for computing the power headroom is the real mode claim 18 , the generating ...

SPECTRAL EFFICIENCY DETERMINATION FOR POWER CONTROL FOR UPLINK CONTROL INFORMATION TRANSMISSION ON AN UPLINK DATA CHANNEL

Certain aspects of the present disclosure relate to methods and apparatus for determining spectral efficiency for transmitting uplink control information (UCI) on an uplink data channel for use in performing uplink power control. 1. (canceled)2. A method for wireless communications by a user equipment (UE) , comprising:receiving information indicative of a modulation coding scheme (MCS) usable by the UE to transmit uplink control information (UCI) on an uplink data channel;determining a spectral efficiency for transmitting the UCI based at least in part on the MCS and on a rate offset between a rate for UCI transmission and a rate for uplink data transmission on the uplink data channel;performing uplink power control based at least in part on the determined spectral efficiency; andtransmitting the UCI without uplink data on the uplink data channel based at least in part on an uplink power, the uplink power based at least in part on the performed uplink power control.3. The method of claim 2 , wherein the uplink data channel comprises a physical uplink shared channel (PUSCH) claim 2 , and wherein transmitting the UCI without uplink data on the uplink data channel comprises transmitting the UCI without uplink shared channel (UL-SCH) data on the PUSCH.4. The method of claim 2 , wherein the UCI comprises channel state information (CSI)-part 1 claim 2 , and wherein the rate for UCI transmission includes a rate for transmitting CSI-part 1.5. The method of claim 2 , further comprising receiving the rate offset.6. The method of claim 5 , wherein the rate offset is received using radio resource control (RRC) signaling or via downlink control information (DCI).7. The method of claim 2 , wherein the spectral efficiency is a bit per resource element (BPRE).9. The method of claim 2 , wherein determining the spectral efficiency based at least in part on the MCS comprises determining the spectral efficiency based at least in part on a target code rate and modulation order ...

RESTRICTING SOUNDING REFERENCE SIGNAL (SRS) POWER CONTROL CONFIGURATIONS

Methods and apparatuses are disclosed for restricting SRS power control configurations. In one embodiment, a method implemented in a wireless device, WD, is provided. The method includes obtaining at least a first sounding reference signal, SRS, resource set configuration for a first SRS resource set, the first SRS resource set configuration corresponding to a first SRS transmission power value; obtaining at least a second SRS resource set configuration for a second SRS resource set, the second SRS resource set configuration corresponding to a second SRS transmission power value; and determining a power level to transmit an SRS on at least one SRS resource associated with at least one of the first SRS resource set and the second SRS resource set. 1. A method implemented in a wireless device , WD , the method comprising:obtaining at least a first sounding reference signal, SRS, resource set configuration for a first SRS resource set, the first SRS resource set configuration corresponding to a first SRS transmission power value;obtaining at least a second SRS resource set configuration for a second SRS resource set, the second SRS resource set configuration corresponding to a second SRS transmission power value;determining a power level to transmit an SRS on at least one SRS resource associated with at least one of the first SRS resource set and the second SRS resource set; andtransmitting the SRS on the at least one SRS resource associated with the at least one of the first SRS resource set and the second SRS resource set at the determined power level.2. (canceled)3. The method of claim 1 , wherein each SRS resource in the first SRS resource set and the second SRS resource set is only part of one of the first SRS resource set and the second SRS resource set.4. The method of claim 1 , further comprising:if the at least one SRS resource is shared between the first SRS resource set and the second SRS resource set, using at most one of the first SRS resource set and the ...

METHOD AND APPARATUS FOR UPLINK TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure relates to mobile communication technology, and in particular, to a method for uplink transmission and apparatus thereof. 1. A method performed by a terminal in a wireless communication system , the method comprising:receiving, from a base station, at least one of a first type of data or a first type of control signaling;determining a second type of control signaling and a time unit used for transmitting the second type of control signaling based on the at least one of first type of data or the first type of control signaling; andtransmitting, to the base station, the second type of control signaling in the determined time unit.2. The method of claim 1 , further comprising determining a physical uplink control channel (PUCCH) transmit power based on a total of the second type of control signaling in case that the second type of control signaling with different priority indexes is multiplexed in a same PUCCH for transmission.3. The method of claim 1 , further comprising determining a physical uplink control channel (PUCCH) transmit power based on the second type of control signaling with a first priority index in case that the second type of control signaling with different priority indexes is multiplexed in a same PUCCH for transmission claim 1 ,wherein the terminal is configured with two priorities for transmissions to the base station, the two priorities include a first priority and a second priority that are different from ...

RADIO BASE STATION AND COMMUNICATION CONTROL METHOD

The communication control method according to the present invention is performed in a radio base station () that includes a remote device () and a central aggregation device (), and that performs radio communication with a user device (). The communication control method includes acquiring including the remote device () acquiring predetermined information necessary to perform a transmission power control of an uplink signal transmitted from the user device (); transmitting including the remote device () transmitting to the central aggregation device () the acquired predetermined information; receiving including the central aggregation device () receiving the predetermined information; and processing includes the central aggregation device () processing, based on the received predetermined information, TPC information that causes the user device () to perform the transmission power control. 1. A radio base station that comprises a remote device and a central aggregation device , and performs radio communication with a user device , wherein an information acquiring unit that acquires predetermined information necessary to perform a transmission power control of an uplink signal transmitted from the user device; and', 'an information transmitting unit that transmits to the central aggregation device the predetermined information acquired by the information acquiring unit, and, 'the remote device includes'} an information receiving unit that receives the predetermined information; and', 'a control information processing unit that processes, based on the predetermined information received by the information receiving unit, control information that causes the user device to perform the transmission power control., 'the central aggregation device includes'}2. A radio base station that comprises a remote device and a central aggregation device , and performs radio communication with a user device , wherein an information acquiring unit that acquires predetermined ...

Method and Apparatus to Improve the Robustness of a Wireless Communication Link

A method and apparatus to improve the robustness of a wireless communication link between a base station and a mobile communication device. The method increases power selectively on portions of an uplink communication signal transmitted from the mobile communication device to the base station. The method monitors a quality metric value at the mobile communication device and sets the transmit power level of the first portion of an uplink communication signal to the first power level, if the monitored quality metric value is in a first range of quality values, or sets the transmit power level of the first portion of the uplink communication signal to a second power level, if the monitored quality metric value is in a second range of quality values. The first portion of the uplink communication signal includes control signals used by a base station to maintain connection of the wireless communication link. 130-. (canceled)31. A method , comprising:determining a quality metric value for a communication between a mobile device and a base station;determining a transmit power level setting for an uplink communication based on the quality metric value, wherein the transmit power level setting is determined to be a first value when the quality metric value is within a first range of values and the transmit power level setting is determined to be a second value when the quality metric value is within a second range of values, wherein the second value is a higher power level than the first value. This patent application takes priority under 35 U.S.C. 119(e) to U.S. Provisional Patent Application Ser. No. 61/286,341 entitled, “IMPROVING THE ROBUSTNESS OF A WIRELESS COMMUNICATION LINK” by Ramasamy et. al. filed Dec. 14, 2009 that is also incorporated by reference in its entirety for all purposes.The described embodiments relate generally to wireless mobile communications. More particularly, a method is described for improving robustness of a communication link by selectively ...

TERMINAL AND COMMUNICATION METHOD

In a terminal, in a case where the sum of the transmission power for a first signal and the transmission power for a second signal that requires lower latency and higher reliability than the first signal exceeds the maximum transmission power in an overlap interval in which a transmission of the first signal and a transmission of the second signal occur at the same time, a control unit carries out power scaling with the quality of the second signal being prioritized over the quality of the first signal, in at least the overlap interval. A transmission unit transmits the first signal and the second signal obtained after the power scaling. 1. A terminal provided with:circuitry, which, in operation, in a case where a sum of a transmission power for a first signal and a transmission power for a second signal requiring lower latency and higher reliability than the first signal exceeds a maximum transmission power in an overlap interval in which a transmission of the first signal and a transmission of the second signal occur at the same time, carries out power scaling with quality of the second signal being prioritized over quality of the first signal, in at least the overlap interval; anda transmitter, which, in operation, transmits the first signal and the second signal obtained after the power scaling.2. The terminal according to claim 1 ,wherein the circuitry, in operation, carries out the power scaling for the first signal and does not carry out the power scaling for the second signal in a case where the sum exceeds the maximum transmission power.3. The terminal according to claim 1 ,wherein the first signal and the second signal are respectively allocated to different frequency resources.4. The terminal according to claim 1 ,wherein a transmission interval for the first signal is longer than a transmission interval for the second signal, and a transmission start position for the first signal is included in the overlap interval, andthe circuitry, in operation, ...

SIDELINK POWER CONTROL METHOD AND TERMINAL DEVICE

This disclosure provides a sidelink power control method and a terminal device. The method is applied to the terminal device, and includes: sending information to a first terminal device in sidelink communication, so that the first terminal device generates power control indication information based on a receiving status of the information; receiving the power control indication information from the first terminal device; and determining an information transmit power of the terminal device in the sidelink communication according to the power control indication information. 1. A sidelink power control method , applied to a terminal device and comprising:sending information to a first terminal device in sidelink communication, so that the first terminal device generates power control indication information based on a receiving status of the information;receiving the power control indication information from the first terminal device; anddetermining an information transmit power of the terminal device in the sidelink communication according to the power control indication information.2. The method according to claim 1 , wherein the receiving the power control indication information from the first terminal device comprises:receiving target information from the first terminal device, wherein the target information carries the power control indication information, and the target information is one of the following information: sidelink control information (SCI), a physical sidelink control channel (PSCCH), and a physical sidelink shared channel (PSSCH).3. The method according to claim 1 , wherein the power control indication information comprises one or a combination of the following: a hybrid automatic repeat request acknowledgment/negative acknowledgment (HARQ ACK/NACK) claim 1 , a channel quality indicator (CQI) claim 1 , a signal-to-noise ratio (SINR) claim 1 , and a block error rate (BLER).4. The method according to claim 3 , wherein the determining an information ...