Настройки

Укажите год
-

Небесная энциклопедия

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 22287. Отображено 100.
05-01-2012 дата публикации

Reverse link power control for wireless communication systems

Номер: US20120003986A1
Автор: Alexei Gorokhov, Naga Bhushan
Принадлежит: Qualcomm Inc

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.

Подробнее
Номер записи: 1
12-01-2012 дата публикации

Method, system and device for adaptive modulation and coding

Номер: US20120008574A1
Автор: Deshan Miao, Fei Qin, Guojun Xiao, Shiqiang Suo, Xueming PAN, YU Ding
Принадлежит: Datang Mobile Communications Equipment Co Ltd

An adaptive modulation and coding method is provided by the present invention, comprising: selecting punctured Physical Resource Blocks (PRBs) to transmit the downlink data for the User Equipment (UE); determining the Transport Block Size (TBS) and the number of punctured PRB pairs for transmission to the UE based on the carried service; scheduling the downlink data for the UE based on the determined TBS, and transmitting the number of the used punctured PRB pairs and a Modulation and Coding Scheme (MCS) sequence number to the UE; and the UE converting the number of the punctured PRB pairs to the number of normal PRB pairs, determining the modulation scheme and the TBS sequence number based on the MCS sequence number, and determining the TBS of the downlink data based on the number of the normal PRB pairs and the TBS sequence number. The specific condition when downlink data are transmitted with punctured PRBs may be performed in the present invention on the basis of utilizing the existing resources and adaptive processing of the general subframes by performing conversion between the number of punctured PRBs and the number of normal PRBs in scheduling resource for the UE with the NodeB, which may be implemented simply and efficiently.

Подробнее
Номер записи: 2
12-01-2012 дата публикации

Method and communication device for feeding back and receiving pre-coding control indication information

Номер: US20120008609A1
Автор: BO Yang, Chongyang Han, Jing Li, Xueli Ma, Zongjie Wang
Принадлежит: Huawei Technologies Co Ltd

The present invention relates to the field of wireless network communications, and provides a method and a device for receiving and sending Pre-coding Control Indication (PCI) information in uplink Multiple-Input Multiple Output (MIMO) transmission or uplink Closed Loop Transmit Diversity (CLTD) transmission, so as to solve a problem that the uplink MIMO communication from a terminal to a Base Station (BS) is unable to be realized in the prior art. A BS transmitting method includes carrying a code sequence, which represents PCI information, in a feedback channel of a BS. The beneficial effect of the present invention is: by feeding back the PCI information, the terminal realizes the maximization of a block length supported by an existing channel condition after the uplink MIMO is introduced, so as to improve an uplink transmission rate.

Подробнее
Номер записи: 3
12-01-2012 дата публикации

Method for informing user equipment of downlink control message construction information in cellular system

Номер: US20120009934A1
Автор: Bin Chul Ihm, Jeong Ki Kim, Jin Soo Choi, Su Nam Kim
Принадлежит: LG ELECTRONICS INC

A method for transmitting control messages from a base station to a user equipment in a cellular system is disclosed. The method includes grouping a plurality of control messages for at least one user equipment based on at least one criteria of whether or not uplink ACK/NACK channel indexes are allowed to be implicitly used in the control messages, whether or not the user equipment corresponding to the control messages is able to implicitly use the uplink ACK/NACK channel indexes, sizes of Information Elements (IEs) of the control messages, whether or not the control messages are segmented into a predetermined number of subblocks, MCS levels applied to the control messages, sizes of allocated IEs of the control messages after applying the MCS levels, and frequency partitions in which the IEs of the control messages are present, and transmitting the grouped control messages.

Подробнее
Номер записи: 4
26-01-2012 дата публикации

Method and apparatus for alarming in a power supply modulated system

Номер: US20120021708A1
Автор: Rizwan Murji
Принадлежит: Motorola Inc

A communication device is presented that has different processors and a power amplifier. One of the processors receives a signal from a monitor and indicates that an alarm exists to a diagnostics module. The other processor uses the envelope signal of the input signal to be amplified and either the signal from the diagnostics module, the monitor or the power amplifier to adjust modulation of the power supply of the power amplifier dependent on the type of alarm. The power supply voltage or headroom is maximized or frozen at the value of the last detection cycle if a fault or impairment, respectively, of the power amplifier is detected.

Подробнее
Номер записи: 5
02-02-2012 дата публикации

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

Номер: US20120026913A1
Автор: Alexander Reznik, Christopher R. Cave, Eldad M. Zeira, Paul Marinier
Принадлежит: InterDigital Patent Holdings Inc

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.

Подробнее
Номер записи: 6
02-02-2012 дата публикации

Method and Apparatus for Grant Loss Detection and Related Processing in a Wireless Communication Network

Номер: US20120026985A1
Автор: Hong Ren, Patrick Lie Chin Cheong, Xiao-Dong Li, Xixian Chen
Принадлежит: Telefonaktiebolaget LM Ericsson AB

The present invention provides a method and apparatus for improving wireless communication network performance and efficiency, based on detecting the occurrence of grant loss in relation to the transmission of scheduling grants to mobile terminals over a downlink control channel. Grant loss detection is based on detecting erasure events corresponding to the transmitted scheduling grants, and the incidence of grant loss with respect to a given mobile terminal can be tracked and used to compensate the control value(s) used for link adaptation of the downlink control channel, with respect to that terminal. Additionally, or alternatively, when a given grant is determined to be lost, a new grant is sent and the HARQ redundancy version is reset for the newly scheduled transmission.

Подробнее
Номер записи: 7
02-02-2012 дата публикации

Method and apparatus for controlling uplink power in wireless communication system

Номер: US20120028673A1
Автор: Su-Ryong Jeong
Принадлежит: SAMSUNG ELECTRONICS CO LTD

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.

Подробнее
Номер записи: 8
09-02-2012 дата публикации

Envelope power supply calibration of a multi-mode radio frequency power amplifier

Номер: US20120034893A1
Автор: Brian Baxter, Jason Millard, Roman Zbigniew Arkiszewski, Steven Selby
Принадлежит: RF Micro Devices Inc

The present disclosure relates to envelope power supply calibration of a multi-mode RF power amplifier (PA) to ensure adequate headroom when operating using one of multiple communications modes. The communications modes may include multiple modulation modes, a half-duplex mode, a full-duplex mode, or any combination thereof. As such, each communications mode may have specific peak-to-average power and linearity requirements for the multi-mode RF PA. As a result, each communications mode may have corresponding envelope power supply headroom requirements. The calibration may include determining a saturation operating constraint based on calibration data obtained during saturated operation of the multi-mode RF PA. During operation of the multi-mode RF PA, the envelope power supply may be restricted to provide a minimum allowable magnitude based on an RF signal level of the multi-mode RF PA, the communications mode, and the saturation operating constraint to provide adequate headroom.

Подробнее
Номер записи: 9
16-02-2012 дата публикации

Method and apparatus for transmitting and receiving reference signal in wireless communication system

Номер: US20120039282A1
Автор: Jin-Kyu Han, Sung Tae Kim, Youn Sun Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Methods and apparatus are provided for transmitting processing reference signals in a mobile communication system. A base station determines a reference signal pattern comprising at least one resource element, generates a bitmap indicator indicating whether zero transmission power is assigned to the at least one resource element of the reference signal pattern, and transmits the reference signal pattern and the bitmap indicator to a terminal. The terminal receives the reference signal pattern and the bitmap indicator, and processes a reference signal extracted according to the reference signal pattern and the bitmap indicator.

Подробнее
Номер записи: 10
16-02-2012 дата публикации

Method and apparatus for configuring power headroom information in mobile communication system supporting carrier aggregation

Номер: US20120040707A1
Автор: Gert-Jan Van Lieshout, Kyeong In Jeong, Sang Bum Kim, Soeng Hun Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method and apparatus for configuring Power Headroom Report (PHR) of a User Equipment (UE) efficiently in a mobile communication system supporting carrier aggregation are provided. The method includes generating a header including a LCID for identifying extended PHR and L indicating a length of the extended PHR, and inserting Power Headrooms (PHs) of multiple activated carriers into the extended PHR of one of the carriers.

Подробнее
Номер записи: 11
01-03-2012 дата публикации

DC Power Control for Power Amplifiers

Номер: US20120052823A1
Автор: Andreas Langer
Принадлежит: INFINEON TECHNOLOGIES AG

Some embodiments of the present disclosure relate to transmission techniques that result in power savings relative to previous solutions. These techniques often transmit a signal-of-interest by using two paths, namely, a transmission path (which includes a power amplifier) and a control path. The signal-of-interest is evaluated in “fast-track” fashion on the control path, such that the control path can “tune” a DC supply signal provided to the power amplifier. Thus, when a delayed version of the signal-of-interest is provided over the transmission path to the power amplifier, the DC supply signal provided to the power amplifier helps ensure that the power amplifier has “just enough” DC supply to ensure reliable operation without dissipating excess power. In this way, the techniques disclosed herein help to reduce power consumption in transmitters, thereby potentially helping to extend battery life and reduce undesired heating for users.

Подробнее
Номер записи: 12
08-03-2012 дата публикации

Logical channel prioritization procedure for generating multiple uplink transport blocks

Номер: US20120057547A1
Автор: Joachim Löhr, Martin Feuersänger, Takahisa Aoyama
Принадлежит: Panasonic Corp

The invention relates to methods for scheduling of uplink transmission and generating transport blocks according to multiple received uplink assignments Furthermore, the invention is also related to the implementation of these methods in hardware and software. To propose strategies for generating plural transport blocks within a given time constraint, the invention introduces prioritization of the uplink assignments, so that multiple uplink assignments can be ranked in the mobile terminal in a priority order. The prioritization of the uplink assignments is used to determine the order in which the individual transport blocks corresponding to the uplink assignments are filled, respectively how the data of different logical channels is multiplexed to the transport blocks for transmission in the uplink. Another aspect of the invention is to suggest joint logical channel procedures that operate on virtual transport blocks accumulated from the received uplink assignments. One or more such joint logical channel procedure can be performed in parallel.

Подробнее
Номер записи: 13
15-03-2012 дата публикации

Controller and method for using a dc-dc converter in a mobile handset

Номер: US20120064953A1
Автор: Dmitriy Rozenblit, Elias Dagher, Kevin Juan, Man H. Ku
Принадлежит: Skyworks Solutions Inc

A controller enables the integration of a DC-DC converter in an amplitude modulation power control loop in a mobile handset. The controller includes an input conditioner and an event sensor. The input conditioner uses a peak detector to track the output of a regulator and responds to available baseband input signals. The event sensor controls a switch that connects the DC-DC converter to a battery in response to a bypass event. The controller bypasses the DC-DC-converter when a transmitter is not enabled. The DC-DC converter is enabled prior to a transmission burst. A target voltage is determined from a series of detected peak voltages from the output of the regulator. The controller commands the DC-DC converter to transition to the target voltage until the end of a transmission burst.

Подробнее
Номер записи: 14
22-03-2012 дата публикации

Method and Apparatus Providing Signal Metric for Transmitter

Номер: US20120069885A1
Автор: Pei-Shiun Chung, Qian-Zhi Huang
Принадлежит: MediaTek Inc

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.

Подробнее
Номер записи: 15
12-04-2012 дата публикации

Method and apparatus for determining maximum transmission power per carrier in mobile communication system supporting carrier aggregation

Номер: US20120087306A1
Автор: Gert-Jan Van Lieshout, Kyeong In Jeong, Sang Bum Kim, Soeng Hun Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method and apparatus for determining a maximum transmission power per carrier in a mobile communication system supporting carrier aggregation are provided. The method for determining the maximum transmission power of a terminal in a mobile communication system supporting carrier aggregation includes checking whether a data channel transmission occurs on each of a plurality of carriers of which Power Headrooms (PHs) are reported in an extended PH Report (PHR), and determining the maximum transmission power of each carrier of the plurality of carriers in consideration of whether the data channel transmission occurs on a carrier corresponding to the data channel transmission.

Подробнее
Номер записи: 16
03-05-2012 дата публикации

Method and apparatus for transmitting control information in radio communication system

Номер: US20120106478A1
Автор: Hyunwoo Lee, Jinmin Kim, SEUNGHEE HAN
Принадлежит: LG ELECTRONICS INC

A method for transmitting control information using PUCCH format 3 in a radio communication system includes detecting one or more Physical Downlink Control Channels (PDCCHs), receiving one or more Physical Downlink Shared Channel (PDSCH) signals corresponding to the one or more PDCCHs, and determining a PUCCH resource value n PUCCH (3,p) corresponding to a value of a transmit power control (TPC) field of a PDCCH for a PDSCH signal on a secondary cell (SCell) among a plurality of PUCCH resource values configured by a higher layer for the PUCCH format 3. If a single antenna port transmission mode is configured, the PUCCH resource value n PUCCH (3,p) indicated by the TPC field is mapped to one PUCCH resource for a single antenna port, and, if a multi-antenna port transmission mode is configured, the PUCCH resource value n PUCCH (3,p) indicated by the TPC field is mapped to a plurality of PUCCH resources for multiple antenna ports.

Подробнее
Номер записи: 17
10-05-2012 дата публикации

Method of Power Reporting and Communication Device Thereof

Номер: US20120113915A1
Автор: Chun-Chia Chen, Chun-Yen Wang
Принадлежит: Acer Inc

A method of power reporting for a mobile device configured with a plurality of uplink component carriers and/or parallel PUCCH and PUSCH transmission in a wireless communication system is disclosed. The method comprises being configured a maximum output power for at least a uplink component carrier, determining to start or stop a maximum output power reporting for the at least a uplink component carrier according to a characteristic associated to the mobile device or a network of the wireless communication system, and reporting the maximum output power for the at least a uplink component carrier to the network when the maximum output power reporting is triggered and the maximum output power reporting is started.

Подробнее
Номер записи: 18
10-05-2012 дата публикации

Method of Handling Power Headroom Reporting for Activated Serving Cell with Configured Uplink

Номер: US20120113919A1
Автор: Mamadou Kone
Принадлежит: HTC Corp

A method of handling power headroom reporting for activated serving cell with configured uplink, for a communication device in a wireless communication system is disclosed. The method comprises triggering a power headroom report for each activated serving cell with configured uplink when an activated serving with configured uplink is deactivated or removed.

Подробнее
Номер записи: 19
24-05-2012 дата публикации

Methods Of Setting Maximum Output Power For User Equipment And Reporting Power Headroom, And The User Equipment

Номер: US20120127933A1
Автор: Chandrika Worrall, Fang-Chen Cheng, Matthew Baker, Patrick Charriere
Принадлежит: Alcatel Lucent Telecom Ltd, Alcatel Lucent USA Inc

One embodiment of the method includes defining, at the user equipment, a range for the maximum output power. The range includes a maximum value and a minimum value. The minimum value is based on a maximum power signalled by a base station, a power class of the user equipment, a maximum power reduction permitted, an additional maximum power reduction permitted, a reduction term dependent on transmission bandwidth, and a power management term. The method further includes setting, at the user equipment, the maximum output power within the defined range.

Подробнее
Номер записи: 20
31-05-2012 дата публикации

Establishing additional reverse link carriers in multi-carrier wireless systems

Номер: US20120134330A1
Автор: Li-Hsiang Sun, Suk Woo Lee, Young C. Yoon
Принадлежит: LG ELECTRONICS INC

A method and apparatus for reliably and quickly establishing multiple reverse links in multi-carrier wireless networks is provided. Signaling channels are established the on an existing forward link in order to transmit reverse link power control bits and the acknowledgment indications.

Подробнее
Номер записи: 21
31-05-2012 дата публикации

Radio transmission control method, radio receiver apparatus, and radio transmitter apparatus

Номер: US20120134437A1
Автор: Akinori Taira, Kenji Suto, Tomoaki Otsuki, Yoshitaka Hara
Принадлежит: Mitsubishi Electric Corp

Conventionally, if the number of transmission antennas is greater than that of reception antennas, different signals simultaneously transmitted from the transmission antennas cannot be separated from one another at the receiving end, resulting in a significant degradation of received-signal quality. A transmitter and a receiver each have a plurality of antennas. The transmitter transmits a pilot signal. The receiver receives the pilot signal, calculates transmission-related information corresponding to the pilot signal, selects, based on this calculated information, a transmission signal to be used by the transmitter, and notifies the transmitter of the selected signal. The transmitter selects, from the informed transmission signal, transmission antennas and uses the selected antennas to transmit information signals, so that a signal separation can be easily performed at the receiving end.

Подробнее
Номер записи: 22
14-06-2012 дата публикации

Power Control Loop Stability Monitoring

Номер: US20120147765A1
Автор: Karl Torbjörn WIGREN
Принадлежит: Telefonaktiebolaget LM Ericsson AB

New load measures are provided for a base station in a wireless communication network using interference suppression receivers. The new load measures are based on the estimation of neighbor cell interference and reflect the load after interference suppression. The improved load measures are used to monitor the stability of the uplink power control loops of the user terminals served by the base station.

Подробнее
Номер записи: 23
21-06-2012 дата публикации

Rach procedures and power level for mtc devices

Номер: US20120155310A1
Автор: David Phillip Hole, Werner Kreuzer
Принадлежит: Research in Motion Deutschland GmbH, Research in Motion Ltd, Research in Motion UK Ltd

The present document relates to a wireless device in a digital cellular telecommunications network. For example, the present document relates to the request of an access channel from a wireless device to a base station of the digital cellular telecommunications network. Example methods for controlling one or more transmissions between a wireless device and a base station are described. The one or more transmissions include at least an initial transmission. One example method comprises determining the quality of a radio uplink between the wireless device and the base station, the quality being based on at least one parameter associated with a previous transmission; setting a control parameter for controlling the transmission between the wireless device and the base station based on the determined quality of the radio uplink; and transmitting the initial transmission.

Подробнее
Номер записи: 24
21-06-2012 дата публикации

Apparatus and method for communicating user equipment specific information in cellular communication system

Номер: US20120155339A1
Автор: Nicholas William Anderson
Принадлежит: Sony Corp

A cellular communication system includes a base station and a plurality of user equipment (UE). The base station includes a combine processor which combines user equipment specific information, such as power control commands or synchronisation information, for a plurality of user equipment. An encode processor encodes the combined user equipment specific information and a transceiver transmits the combined user equipment specific information in a minimum transmission resource unit of the cellular communication system. The minimum transmission resource unit may be a single channelisation code in a single time slot.

Подробнее
Номер записи: 25
28-06-2012 дата публикации

Method for harq and link adaptation of device to device link in direct communication between user equipments and relaying by user equipment

Номер: US20120163252A1
Автор: Jae Young Ahn, Tae Gyun Noh, Young Jo Ko
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Provided is a method of processing hybrid automatic repeat request (HARQ) and adaptive transmission of a device-to-device (D2D) link. In the method, an operation method of user equipment (UE) includes (a) receiving an initial transmission mode (TM) and transmission power for the D2D link from a base station, and performing data transmission through the D2D link, (b) determining, at the UE, a TM and transmission power of a succeeding subframe, or receiving a TM control value and a transmission power control value from counterpart UE of the D2D link and determining the TM and the transmission power of the succeeding subframe, and (c) performing the data transmission to the counterpart UE using the determined TM and transmission power. Here, (b) and (c) are repeated.

Подробнее
Номер записи: 26
12-07-2012 дата публикации

Method and apparatus for controlling uplink transmission power in wireless communication system

Номер: US20120176915A1
Автор: Jae-Ho Jeon, Nam-Hoon Kim, Neung-Hyung Lee, Seung-Hyun Min, Seung-Joo Maeng, Sung-Soo Hwang
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method for controlling uplink transmission power in a wireless communication system is provided. The method includes estimating a downlink path loss, determining a target Signal to Noise Ratio (SNR) depending on the downlink path loss, determining an amount of power to compensate for a difference between the target SNR and an estimated SNR, and transmitting a power control message including a Transmit Power Control (TPC) command value to a terminal based on the determined amount of power.

Подробнее
Номер записи: 27
26-07-2012 дата публикации

Method for controlling power in wireless ad-hoc network

Номер: US20120188924A1
Автор: Choongil YEH, Dong Hyun AHN
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A node in a wireless network system determines transmission power by performing transmission power control only on a plurality of data subcarriers, other than a plurality of pilot subcarriers, of a PDU slot or ACK slot to be transmitted, and then transmits the data subcarriers of the PDU slot or ACK slot at the determined transmission power and transmits the pilot subcarriers of the PDU slot or ACK slot at a fixed power level. Accordingly, neighboring nodes determine whether or not a channel of the PDU slot or ACK slot is sensed by using the pilot subcarriers of the PDU slot or ACK slot.

Подробнее
Номер записи: 28
23-08-2012 дата публикации

Method of efficiently reporting user equipment transmission power and apparatus thereof

Номер: US20120214537A1
Автор: Gert-Jan Van Lieshout, Kyeong In Jeong, Sang Bum Kim, Soeng Hun Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.

Подробнее
Номер записи: 29
06-09-2012 дата публикации

System and Method for Handling a Power Outage

Номер: US20120226930A1
Автор: Bin Chen, Erik Colban, George Calcev, George Cummings
Принадлежит: FutureWei Technologies Inc

A method for reporting a power outage to a communications controller includes detecting the power outage, and selecting a transmission slot from a plurality of transmission slots in order to report the power outage to the communications controller, the transmission slot selected according to a non-uniform probability distribution function, the non-uniform probability distribution function is monotonic with time after the power outage. The method also includes transmitting a first power outage indicator to the communications controller in the transmission slot selected.

Подробнее
Номер записи: 30
20-09-2012 дата публикации

Method, Base Station, and User Equipment for Feeding Back ACK/NACK Information for Carrier Aggregation

Номер: US20120236812A1
Автор: Chaojun Li, Xiaobo Chen
Принадлежит: Huawei Technologies Co Ltd

The present invention provides a method, a base station, and a user equipment for feeding back ACK/NACK information for carrier aggregation. The method includes: configuring a common field preset in DCI as at least one type of command field related to ACK/NACK feedback of at least two types of command fields related to ACK/NACK feedback, where the common field can be configured as the command fields related to ACK/NACK feedback; and sending the DCI to a user equipment, so that the user equipment feeds back ACK/NACK information according to the DCI. The present invention may realize backward compatibility of the ACK/NACK information feedback with an LTE system in carrier aggregation.

Подробнее
Номер записи: 31
20-09-2012 дата публикации

Wireless communication system, wireless communication apparatus and wireless communication method

Номер: US20120236918A1
Автор: Koji Ikuta
Принадлежит: NEC Corp

In a wireless communication system performing wireless communication via a wireless transmission path, a first wireless communication apparatus includes a receiver that receives a wireless signal via a wireless transmission path, a disconnection detector that detects disconnection of a wireless line connected to a second communication apparatus, a modulation controller that selects a modulation scheme, enabling communication under poor conditions in a transmission path, rather than a modulation scheme which has been used in wireless communication, and a transmitter that notifies the modulation scheme selected by the modulation scheme controller to the second wireless communication apparatus. The second wireless communication apparatus includes a receiver that receives the selected modulation scheme from the first wireless communication apparatus, and a transmitter that transmits signals to the first wireless communication apparatus based on the selected modulation scheme which is received by the receiver.

Подробнее
Номер записи: 32
11-10-2012 дата публикации

Method and apparatus of configuring downlink timing and transmitting random access response in mobile communication system using carrier aggregation

Номер: US20120257569A1
Автор: Jaehyuk JANG, Kyeongin Jeong
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method of configuring downlink timings and transmitting a random access response message is provided for a random access procedure in a Long Term Evolution (LTE) system supporting carrier aggregation. The method for adjusting timing of a terminal in a wireless communication system supporting carrier aggregation of at least one carrier includes transmitting a Random Access Preamble to a base station, and receiving a Random Access Response with a Timing Advance Command (TAC) for commanding uplink timing adjustment from the base station, wherein the Random Access Response comprises information indicating a Timing Advance Group (TAG) to which the TAC is applied.

Подробнее
Номер записи: 33
11-10-2012 дата публикации

Transmission and reception apparatus and method

Номер: US20120257688A1
Автор: Akihiko Matsuoka, Masayuki Orihashi, Yutaka Murakami
Принадлежит: Panasonic Corp

A transmission apparatus includes a plurality of orthogonal frequency division multiplexing (OFDM) modulation signal generators, which generate a first OFDM modulation signal and a second OFDM modulation signal. The transmission apparatus also includes a transmitter that transmits the first OFDM modulation signal from a first antenna and the second OFDM modulation signal from a second antenna, in an identical frequency band. A reception apparatus is provided, which includes a plurality of antennas that receive a plurality of OFDM modulation signals; a plurality of OFDM demodulators that transform the plurality of OFDM modulation signals to a plurality of reception signals using Fourier transform; an estimator that outputs a distortion estimation signal using one or more symbols for demodulation included in the plurality of reception signals; and a demodulator that compensates for distortion of the reception signals using the distortion estimation signal and demodulates a data symbol included in the reception signals.

Подробнее
Номер записи: 34
25-10-2012 дата публикации

Apparatus and Method for Implementing One or More Handover Prioritizing Schemes

Номер: US20120269165A1
Автор: Guangming Shi, Kuo-Chun Lee, Tom Chin
Принадлежит: Qualcomm Inc

Avoiding collisions when executing Handover or initial access (Random access requests) due to the use of the same synchronisation code, SYNC-UL code, at the same Uplink pilot channel, UpPCH, in the same Uplink pilot Time Slot, Up-PTS, in a TD-SCDMA system. The method may comprise receiving a signal that identifies N subframes of a subframe cycle including M subframes, wherein an uplink pilot channel in each of said N identified subframes is available for initial access and a hard handover, wherein N and M are positive integers, and wherein N is less than M. Further, the method may comprise receiving a signal that identifies G synchronization codes among H available synchronization codes, wherein each of said G identified synchronization codes is available for initial access only, wherein G and H are positive integers, and wherein G is less than H.

Подробнее
Номер записи: 35
08-11-2012 дата публикации

System and method for uplink multiple input multiple output transmission

Номер: US20120281642A1
Автор: Sharad Deepak Sambhwani, Sony John Akkarakaran
Принадлежит: Qualcomm Inc

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.

Подробнее
Номер записи: 36
15-11-2012 дата публикации

System and method for uplink multiple input multiple output transmission

Номер: US20120287867A1
Автор: Sharad Deepak Sambhwani, Sony John Akkarakaran
Принадлежит: Qualcomm Inc

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.

Подробнее
Номер записи: 37
29-11-2012 дата публикации

Method for Transmitting Up Link Control Signal in Mobile Communication System

Номер: US20120300735A1
Автор: Jae-Heung Kim, Jung-Im Kim, Kyoung-Seok Lee, Soo-Jung Jung, Young-Jo Ko
Принадлежит: Electronics and Telecommunications Research Institute ETRI

The present invention relates to a method for transmitting uplink control information in a mobile communication system; and, more particularly, to a method for effectively forming uplink control information transmitted through a downlink from a base station to a terminal in a mobile communication system for providing a packet service and transmitting the uplink control information with minimum radio resources occupied. The method includes the steps of generating uplink control information; allocating the uplink control information to a downlink-shared radio resource for packet data transmission based on downlink scheduling information; and transmitting the radio resource to a terminal. The present invention is applied to a mobile communication system.

Подробнее
Номер записи: 38
13-12-2012 дата публикации

Communication base station and power amplification processing method of communication base station

Номер: US20120315947A1
Автор: Shugong Xu, Shunqing Zhang
Принадлежит: Huawei Technologies Co Ltd

A method for implementing power amplification processing includes: obtaining power amplifier feature information and service requirement information of a power amplifier, where the service requirement information includes requirement information of a real-time service and requirement information of a non-real-time service; determining a regulation parameter and a scheduling parameter of the power amplifier according to the service requirement information and the power amplifier feature information; and performing, by the power amplifier, transmit power regulation according to the regulation parameter to obtain amplified transmit power.

Подробнее
Номер записи: 39
20-12-2012 дата публикации

Wireless communication apparatus

Номер: US20120322381A1
Автор: Haruya Ishizaki
Принадлежит: NEC Corp

A wireless communication apparatus is capable of generating a gain/noise characteristics control signal for an amplifier and a filter without degrading an amount of electrical power, or distance information contained in the electrical power. The wireless communication apparatus includes: a rectifier circuit; a circuit power supply for receiving electrical power from the rectifier circuit so as to supply required electrical power; a sampling circuit for performing sampling on an output of the rectifier circuit; a discrete filter capable of performing discrete processing on an output of the sampling circuit so as to selectively remove a frequency component contained in the output of the sampling circuit; and power control for controlling a bias required for a radio transmitter and/or a radio receiver based on the DC component output from the discrete filter.

Подробнее
Номер записи: 40
27-12-2012 дата публикации

Method and System for Power Control of a Wireless Communication Device

Номер: US20120329512A1
Автор: Mahibur Rahman, Michael Addison Milyard, Pravin Premakanthan
Принадлежит: Fujitsu Semiconductor Ltd

According to the present disclosure, a method for tracking power levels of a wireless communications signal comprises receiving a feedback signal indicative of a power level of a wireless communication signal associated transmitted from a transmit path to an antenna of a wireless communication element. The method further comprises receiving a reference signal associated with a digital signal converted into the wireless communication signal. Additionally, the method comprises determining a gain of the feedback signal with respect to the reference signal and determining a gain error based on the determined gain and an expected gain.

Подробнее
Номер записи: 41
10-01-2013 дата публикации

Controlling uplink and downlink transmission power during asynchronous switching of control states by user equipment

Номер: US20130010704A1
Автор: Anders Astrom, Göran KRONQUIST, Per Lofving
Принадлежит: Telefonaktiebolaget LM Ericsson AB

A network node is disclosed that communicates with a user equipment node in a communications system. The network node repetitively transmits first uplink transmission power control, TPC, commands on a first physical channel with a first channel configuration while repetitively transmitting second uplink TPC commands on a second physical channel with a second channel configuration. The first and second uplink TPC commands control uplink transmission power from the user equipment node to the network node. Related user equipment nodes and methods are disclosed.

Подробнее
Номер записи: 42
10-01-2013 дата публикации

Method for operating a secondary station

Номер: US20130010888A1
Автор: Milos Tesanovic, Timothy James Moulsley
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

The invention relates to a method for operating a secondary station, the secondary station communicating with at least one primary station by means<MIMO transmissions, the method comprising the secondary station signaling a single precoding indicator representative of a set of recommended precoding coefficients to the primary station, wherein the same precoding indicator applies for a plurality of available transmission modes.

Подробнее
Номер записи: 43
07-02-2013 дата публикации

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

Номер: US20130034073A1
Автор: Lei Huang, Shoichi Suzuki, Tatsushi Aiba
Принадлежит: Sharp Corp

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.

Подробнее
Номер записи: 44
14-02-2013 дата публикации

Method and apparatus for transmitting control information in wireless communication system

Номер: US20130039307A1
Автор: Hyun Soo Ko, Jae Hoon Chung, Moonil Il Lee, Seung Hee Han
Принадлежит: LG ELECTRONICS INC

The present invention relates to a wireless communication system. The present invention relates to a method for transmitting ACK/NACK in a wireless communication system in which carrier aggregation is set, and an apparatus therefor. Specifically, the present invention relates to an ACK/NACK transmission method and an apparatus therefor, the method comprising the steps of: receiving information on a plurality of physical uplink control channel (PUCCH) resources via upper layer signaling; receiving a transmit power control (TPC) field on a secondary carrier through a physical downlink control channel (PDCCH); receiving data indicated by the PDCCH; and transmitting ACK/NACK for the data, wherein the ACK/NACK is transmitted using a PUCCH resource which is indicated by the value of the TPC field among the plurality of PUCCH resources.

Подробнее
Номер записи: 45
21-03-2013 дата публикации

METHOD FOR ALLOWING TERMINAL TO TRANSMIT POWER HEADROOM INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

Номер: US20130070685A1
Автор: Chun Sungduck, Jung Sunghoon, Lee Youngdae, Park Sungjun, Yi Seungjune
Принадлежит: LG ELECTRONICS INC.

The present invention relates to a wireless communication system, and more specifically, to a method for allowing a terminal to transmit power headroom information in a wireless communication system and a device therefor. According to one aspect of the present invention, a method for allowing a terminal, in which at least one serving cell is set, to transmit power headroom information comprises the steps of: generating said power headroom information; and transmitting the power headroom information to a base station. In this case, said power headroom information includes a first field that includes a plurality of indicators, and at least one second field that indicates a power headroom level, wherein each of the plurality of indicators is capable of indicating whether at least one said second field for at least one of each of the serving cell exists. 1. A method for transmitting , by a user equipment (UE) in which at least one serving cell is set , power headroom (PH) information in a wireless communication system , the method comprising:generating the power headroom information; andtransmitting the power headroom information to a base station,wherein the power headroom information includes a first field including a plurality of indicators and at least one second field indicating a level of the power headroom,wherein each of the plurality of indicators indicates whether the at least one second field exists for each of the at least one serving cell.2. The method according to claim 1 , wherein each of the plurality of indicators is set to 0 or 1 claim 1 , an indicator claim 1 , which has been set to 1 claim 1 , indicates that a second field exists for a corresponding serving cell claim 1 , and an indicator claim 1 , which has been set to 0 claim 1 , indicates that a second field does not exist for a corresponding serving cell.3. The method according to claim 1 , wherein the at least one second field is for an activated serving cell among the at least one serving cell. ...

Подробнее
Номер записи: 46
04-04-2013 дата публикации

RADIO FREQUENCY AMPLIFIER NOISE REDUCTION SYSTEM

Номер: US20130084906A1
Автор: Ashworth Christopher K., Cook Patrick L., Kline Richard M., Van Buren Vernon A.
Принадлежит: WILSON ELECTRONICS, INC.

An amplifier for controlling or reducing broadband noise is disclosed. An amplifier determines whether a useful signal is being amplified and controls the gain of the amplifier at least when useful signals are not being amplified to prevent or minimize the amplification of noise. 1. A method for controlling an output of a booster amplifier to reduce an effect of amplified noise on a noise floor of a base station in a wireless network , the method comprising:sampling an input to the booster amplifier;determining whether a desirable signal is present at the input of the booster amplifier based on the sampled input;controlling an output of the booster amplifier according to the determination of whether the desirable signal is present at the input of the booster amplifier.2. The method of claim 1 , wherein controlling an output further comprises turning the booster amplifier off when the desirable signal is not present at the input.3. The method of claim 2 , wherein controlling an output further comprises turning off one or more amplifiers included in an amplifier chain in the booster amplifier.4. The method of claim 1 , wherein controlling an output further comprises allowing the booster amplifier to operate normally when the desirable signal is present at the input.5. The method of claim 1 , wherein determining whether a desirable signal is present further comprises sampling the input one or more times and generating a signal input level for each sample.6. The method of claim 5 , wherein determining whether a desirable signal is present further comprises comparing at least one of the sample signal input levels to one or more values in a history of signal input levels.7. The method of claim 6 , wherein the signal input levels include DC levels.8. The method of claim 1 , wherein controlling an output further comprises reducing a gain of the booster amplifier by a variable attenuator or by changing a bias voltage of an amplifier chain or one or more amplifiers included ...

Подробнее
Номер записи: 47
11-04-2013 дата публикации

Transmit power adjustment to reduce a relative phase discontinuity

Номер: US20130089044A1
Автор: Chester Park, Kumar Balachandran
Принадлежит: Telefonaktiebolaget LM Ericsson AB

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.

Подробнее
Номер записи: 48
11-04-2013 дата публикации

GAIN CONTROL SYSTEMS AND METHODS FOR CONTROLLING AN ADJUSTABLE POWER LEVEL

Номер: US20130090077A1
Автор: Agahi Darioush, Rozenblit Dmitriy
Принадлежит: SKYWORKS SOLUTIONS, INC.

A system, such as a transceiver, for controlling an adjustable power level includes first and second power detectors, a network of attenuators, a compensator, a comparator, and a controller. The first power detector measures the power of a signal. The network of attenuators receives the signal and generates an attenuated signal. The compensator receives the attenuated signal and generates a compensated signal. The second power detector measures the power of the compensated signal. The comparator receives the respective outputs from the first and second power detectors and generates a first error signal. The controller enables the fixed attenuation, correspondingly adjusts the variable attenuation, receives a second error signal, and provides a control signal to the network of attenuators to nullify an attenuation mismatch introduced between the fixed attenuation and the variable attenuation. A corresponding method for controlling an adjustable power level is also disclosed. 1. A system , comprising:a first power detector configured to detect a power of a radio-frequency (RF) signal and to provide a first power detector output;a network of attenuators configured to provide a fixed attenuation and a variable attenuation, the network of attenuators coupled to receive the RF signal and forward an attenuated signal;a compensator configured to receive the attenuated signal and to provide gain to the attenuated signal in an amount proximate to the fixed attenuation to generate a compensated signal at a compensator output;a second power detector configured to detect a power output of the compensated signal and to provide a second power detector output; anda comparator configured to receive the first power detector output and the second power detector output, and generate a first error signal.2. The system of further comprising a controller configured to direct the network of attenuators to controllably bypass the fixed attenuation when the first error signal is generated.3. ...

Подробнее
Номер записи: 49
18-04-2013 дата публикации

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

Номер: US20130094466A1
Автор: Ahn Joon Kui, Kim Min Gyu, Seo Dong Youn, Yang Suck Chel
Принадлежит: LG ELECTRONICS INC.

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 ...

Подробнее
Номер записи: 50
18-04-2013 дата публикации

Communications apparatuses and method for multi-level transmission power control thereof

Номер: US20130094491A1
Автор: Hsuan-An LIN, Juei-Ting Sun, Po-Chun Huang, Shuo-Jen Hsu, Tzu-Wei HAN, Wei-Kun Su, Yuan Chen
Принадлежит: MediaTek Inc

A communications apparatus is provided. A radio module transmits first packets before establishing a connection with a peer communications device. A transmission power utilized for transmitting the first packets is adjustable, so that multiple levels of transmission power are utilized for transmitting the first packets.

Подробнее
Номер записи: 51
18-04-2013 дата публикации

Communication System, Communication Apparatus and Communication Control Method

Номер: US20130094608A1
Автор: NISHIKIDO Masamitsu, TOUNAI Yuuya
Принадлежит: KYOCERA CORPORATION

A communication system that applies different modulation methods to a first data portion and a second data portion which constitute communication data, includes: a receiving strength detection unit which detects a receiving strength of the communication data; a receiving strength transmission unit transmitting the receiving strength to a transmission portion which transmits the communication data; a receiving unit which receives the transmitted receiving strength; and a transmission power control unit which controls transmission power for transmitting each of the first and second data portions based on the transmitted receiving strength. Therefore, the communication system can improve the demodulation characteristics and reduce a power consumption of a communication apparatus at a receiving side 119. -. (canceled)10. A communication apparatus which conducts a modulation operation based on a modulation method selected from a plurality of modulation methods , and transmits a signal to another communication apparatus while controlling transmission power , the communication apparatus comprising:a first control portion applying a single modulation method to a first signal, and applying at least two modulation methods to a second signal included in a single frame together with the first signal; anda second control portion, when transmitting the single frame, conducting a first transmission power control operation on the first signal, and conducting a second transmission power control operation on the second signal.11. A communication method of a communication apparatus for conducting a modulation operation based on a modulation method selected from a plurality of modulation methods , and transmitting a signal to another communication apparatus while controlling transmission power , the communication method comprising steps of:applying a single modulation method to a first signal, and applying at least two modulation methods to a second signal included in a single frame ...

Подробнее
Номер записи: 52
18-04-2013 дата публикации

AUTOMATIC GAIN CONTROL

Номер: US20130095841A1
Автор: Hong Leon L., Johnson Ken, Quimby David
Принадлежит: AIRBIQUITY INC.

In one example, a Bluetooth enabled navigation device pairs with a mobile phone and then sends a plurality of tuning transmissions, each at a different transmission power gain amount, to a remote server using the mobile phone. These tuning transmissions are encoded using frequency tones that synthesize speech for transmission through the mobile phone and a voice channel of its wireless telecommunications network. The navigation device then tunes transmit power settings according to a received response to the tuning transmissions and uses the tuned transmit power settings for subsequent transmission to the remote server using this particular mobile phone. 1. A memory having instructions stored thereon that , in response to execution by a processor , cause the processor to perform operations comprising:transmitting communications to pass through a Bluetooth connection between a first device and a second mobile phone device that is different than the first device and to pass through a wireless voice channel of a wireless telecommunications network associated with the second mobile phone device;inputting a digital bit sequence into a modulator to generate an audio signal that has different frequency tones for different bit values, wherein the frequency tones are selected to pass through the wireless voice channel unobstructed by vocoders operating within the wireless telecommunications network;using the modulator, generating and sending a first transmission according to a first transmit-side power gain amount;using the modulator, generating and sending a second transmission according to a second different transmit-side power gain amount;receiving back a response indicating receive-side power gain amounts for the first and second transmissions;determining a third transmit-side power gain amount by analyzing the response;using the modulator, generating and sending a third transmission according to the third transmit-side power gain amount;discovering a Bluetooth client ...

Подробнее
Номер записи: 53
18-04-2013 дата публикации

UPLINK NOISE MINIMIZATION

Номер: US20130095870A1
Автор: Phillips Fred William, Ranson Chris
Принадлежит: Andrew LLC

A method and apparatus for controlling uplink signal power in a distributed antenna system having a master unit and a plurality of remote units and coupled with a base station includes monitoring a noise condition of the distributed antenna system. The invention dynamically adjusts an uplink gain within the distributed antenna system that is applied to uplink signals to a base station , based on the monitored noise condition. Monitoring the noise condition in the distributed antenna system includes monitoring one or more remote units of the plurality of remote units and determining if the remote unit is active status or mute status and then. The uplink gain is increased in response to a decrease in the number of remote units that are active status and decreased in response to an increase in the number of remote units that are active status. 1. A distributed antenna system , comprising:a plurality of remote units;a master unit configured for coupling with the remote units and a base station;the master unit configured for monitoring a noise condition of the distributed antenna system;the master unit further configured for dynamically adjusting an uplink gain within the distributed antenna system, that is applied to uplink signals to a base station, based on the monitored noise condition.2. The distributed antenna system of wherein the master unit is configured for monitoring one or more remote units of the plurality of remote units and claim 1 , based on the monitoring claim 1 , determining if the remote unit is active status or mute status.3. The distributed antenna system of wherein the master unit is configured for determining the number of active status remote units and dynamically adjusting the uplink gain by:increasing the uplink gain in response to a decrease in the number of remote units that are active status; anddecreasing the uplink gain in response to an increase in the number of remote units that are active status.4. The distributed antenna system of ...

Подробнее
Номер записи: 54
18-04-2013 дата публикации

UPLINK POWER CONTROL FOR DISTRIBUTED WIRELESS COMMUNICATION

Номер: US20130095878A1
Автор: Beluri Mihaela C., Charlton Gregg A., Chitrapu Prabhakar R., Lin Zinan, Pietraski Philip J., Reznik Alexander, Shin Sung-Hyuk, Zeira Eldad M.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

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; ...

Подробнее
Номер записи: 55
25-04-2013 дата публикации

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

Номер: US20130100842A1
Автор: Kishiyama Yoshihisa, Nishikawa Daisuke
Принадлежит: NTT DOCOMO, INC.

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 ...

Подробнее
Номер записи: 56
02-05-2013 дата публикации

Controlling a Power Amplifier Based on Transmitter Output Emissions

Номер: US20130107926A1
Автор: DAKSHINAMURTHY Sriraman, Lorenz Robert, Xia Ying
Принадлежит:

Methods and systems for controlling the supply voltage provided to a power amplifier (PA) in a radio frequency (RF) transmitter based on measured output spectrum emissions are provided. In an embodiment, the PA supply voltage is adjusted such that spectrum emission limits are satisfied with predetermined margins. In another embodiment, the predetermined margins are reduced to lower power consumption of the PA. 1. A method for controlling a power amplifier (PA) in a radio frequency (RF) transmitter , comprising:performing one or more spectrum emission measurements at an output of the RF transmitter;comparing the one or more spectrum emission measurements to a spectrum emission limit; andadjusting a supply voltage to the PA based on the comparison of the one or more spectrum emission measurements to the spectrum emission limit.2. The method of claim 1 , wherein the one or more spectrum emission measurements include out-of-band emission measurements at one or more spectral mask corner frequencies.3. The method of claim 1 , wherein the one or more spectrum emission measurements include an in-channel emission measurement and an adjacent channel emission measurement.4. The method of claim 1 , wherein the one or more spectrum emission measurements include a first emission measurement and a second emission measurement claim 1 , the first emission measurement corresponding to a first frequency bin centered at an offset frequency above a center frequency of an assigned channel bandwidth claim 1 , and the second emission measurement corresponding to a second frequency bin centered at the offset frequency below the center frequency of the assigned channel bandwidth.5. The method of claim 1 , further comprising:computing a difference between at least one spectrum emission measurement of the one or more spectrum emission measurements and the spectrum emission limit to generate a current margin between the at least one spectrum emission measurement and the spectrum emission limit; ...

Подробнее
Номер записи: 57
09-05-2013 дата публикации

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

Номер: US20130114562A1
Автор: Choi Youngseob, Kim Kijun, Seo Hanbyul
Принадлежит: LG ELECTRONICS INC.

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 ...

Подробнее
Номер записи: 58
09-05-2013 дата публикации

Method for Suppression of Spurs from a Free Running Oscillator in Frequency Division Duplex (FDD) and Time Division Duplex (TDD) Wireless Systems

Номер: US20130116004A1
Автор: Georgios Konstantopoulos, Ioannis Kokolakis, Nikolaos Haralabidis
Принадлежит: Broadcom Corp

Embodiments of this disclosure include methods in which spurs generated by the drifting of an oscillation frequency of an oscillation signal provided by a free-running oscillator may be minimized and/or eliminated from an output signal of a phase locked loop (PLL). Methods include minimizing the mixing gain between the oscillation signal and a power signal provided to the PLL. The oscillation signal and the power signal may be mixed in a phase frequency detector (PFD) included in the PLL. The minimizing of the mixing gain for the PFD also minimizes the degrading effect that the spurs have on the overall performance of the communications device. The mixing gain may be minimized by minimizing the impedance provided at nodes included in the PFD where the oscillation signal and the power signal mix. The mixing gain may also be minimized by maximizing the power supply rejection ratio for the PFD.

Подробнее
Номер записи: 59
23-05-2013 дата публикации

UPLINK POWER CONTROL METHOD AND USER EQUIPMENT

Номер: US20130128833A1
Автор: Chung Jaehoon, Han Seunghee, Ko Hyunsoo, Lee Moonil
Принадлежит: LG ELECTRONICS INC.

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 ...

Подробнее
Номер записи: 60
30-05-2013 дата публикации

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

Номер: US20130136018A1
Автор: Jong-Hwa Shin, Weon-Yong JOO, Yang-Seok Jeong
Принадлежит: KT Corp

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

Подробнее
Номер записи: 61
30-05-2013 дата публикации

Terminal and Grant Processing Method Thereof

Номер: US20130136070A1
Автор: Lin Liu, Xiang Cheng, Yazhu Ke
Принадлежит: ZTE Corp

Disclosed are a terminal and a grant processing method therefor. The method includes: when a terminal carries out the 16 quadrature amplitude modulation (16QAM) operation, if an absolute grant is mapped by using absolute grant value mapping relationship table 1, then scheduling grant table 1 will be utilized to update a serving grant; and if the absolute grant is mapped by using absolute grant value mapping relationship table 2, then scheduling grant table 2 will be utilized to update the serving grant. By way of the present invention, the boundaries of various tables match each other as far as possible, thereby the performance problem appearing during the engineering application can be solved, improving the performance of high speed uplink packet access (HSUPA) technology during engineering application.

Подробнее
Номер записи: 62
06-06-2013 дата публикации

Device and method for wcdma uplink transmissions

Номер: US20130142174A1
Автор: Bo Göransson, Erik Larsson, Fredrik OVESJÖ, Johan Bergman, Johan Hultell, Niklas Johansson
Принадлежит: Telefonaktiebolaget LM Ericsson AB

A NodeB for a WCDMA system, arranged to transmit instructions to a UE for the UE's uplink transmissions. The NodeB is arranged to transmit the instructions on a dedicated downlink physical channel which the NodeB is arranged to use for transmissions to a plurality of UEs and which comprises a plurality of radio frames, where each radio frame comprises a number of slots and each slot comprises a number of WCDMA symbols. The instructions to the UE comprise Transmit Power Commands as well as other instructions to the UE for the UE's uplink transmissions. The NodeB is arranged to use a first WCDMA slot format for the TPC commands to the UE and a second WCDMA slot format for the other instructions to the UE.

Подробнее
Номер записи: 63
06-06-2013 дата публикации

METHOD FOR CONTROLLING UPLINK TRANSMIT POWER IN MOBILE COMMUNICATION SYSTEM

Номер: US20130143614A1
Автор: AHN Jae Young, LEE Hee Soo
Принадлежит: Electronics and Telecommunications Research Institute

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 ...

Подробнее
Номер записи: 64
13-06-2013 дата публикации

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

Номер: US20130148604A1
Автор: Miller James M., Rudolf Marian
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

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 ...

Подробнее
Номер записи: 65
13-06-2013 дата публикации

METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION POWER IN WIRELESS COMMUNICATION SYSTEM

Номер: US20130148614A1
Автор: Chung Jae Hoon, Kim Dong Cheol, Noh Min Seok
Принадлежит: LG ELECTRONICS INC.

Provided is a method and apparatus for controlling transmission power in a wireless communication system. A terminal sets transmission power of a physical uplink control channel (PUCCH). Among a plurality of physical uplink shared channels (PUSCHs), at least one PUSCH to which uplink control information (UCI) is not mapped is decreased in transmission power based on a maximum transmission power of the terminal and the transmission power of the PUCCH, and transmission power of at least one second PUSCH, of the plurality of PUSCHs to which UCI is mapped, is set. At this time, the UCI and uplink data are transmitted through the PUCCH, the at least one first PUSCH, and the at least one second PUSCH; and the at least one first PUSCH and the at least one second PUSCH are allocated to component carriers (CCs) of a plurality of uplinks (ULs). 1. A method of controlling transmission power by a terminal in a wireless communication system , the method comprising:determining transmission power of a physical uplink control channel (PUCCH);determining transmission power of at least one first uplink shared channel (PUSCH) to which an uplink control information (UCI) is not mapped by scaling down the transmission power thereof among a plurality of PUSCHs on the basis of maximum transmission power of the terminal and the transmission power of the PUCCH;determining transmission power of at least one second PUSCH to which the UCI is mapped among the plurality of PUSCHs; andtransmitting the UCI and uplink (UL) data through the PUCCH, the at least one first PUSCH, and the at least one second PUSCH,wherein the at least one first PUSCH and the at least one second PUSCH are allocated to a plurality of UL component carriers (CCs).3. The method of claim 1 , wherein the UCI is any one of a periodic UCI claim 1 , an aperiodic channel quality indicator (CQI) claim 1 , and a jointly encoded periodic UCI and aperiodic CQI.4. The method of claim 1 , wherein the transmission power of the at least ...

Подробнее
Номер записи: 66
20-06-2013 дата публикации

Hybrid codebook design for wireless systems

Номер: US20130156075A1
Автор: Abdulla Firag, Apostolos Papathanassiou, DEBDEEP CHATTERJEE, Hooman Shirani-Mehr, Mansoor Shafi, Peter J. Smith
Принадлежит: Intel Corp

Briefly, in accordance with one or more embodiments, a codebook for wireless transmissions may be generated by dividing a codebook into a fixed set of codewords and an adaptive set of codewords. The adaptive set of codewords may be scaled to cluster together and then rotated to be centered or nearly centered about a target. The adaptive set of codewords may then be merged with the fixed set of codewords to provide a hybrid codebook. A codeword from the hybrid codebook may be selected for precoding a transmission to provide a minimum, or nearly minimum, quantization error.

Подробнее
Номер записи: 67
20-06-2013 дата публикации

Capacitive/Inductive Proximity Detection for Wi-Fi Protection

Номер: US20130157564A1
Автор: Curtis Keith Edwin, Duvenhage Fanie, LeFaou Yann
Принадлежит: MICROCHIP TECHNOLOGY INCORPORATED

A combination of capacitive, mutual capacitive, and inductive proximity and touch sensing is used to detect the presence and nature of nearby objects to a wireless device. When the proximity of metal or a user is sensed the output power of a Wi-Fi module in the device is reduced so as to prevent harm to the user and/or the Wi-Fi transmitter amplifier circuits. Inductive sensors located at the four corners of the wireless device are used to detect metal, and capacitive sensors are used to detect a capacitance change or shift due to the presence of a user's hand, body or metal. In addition, the capacitive sensors may be located at the four corners of the device and can measure changes in the mutual capacitance coupling between these capacitive sensors. 1. A wireless device comprising:a Wi-Fi unit;at least one capacitive sensor and at least one inductive sensor located at each corner of said wireless device; anda controller operable to evaluate capacitance and inductance values of each of the at least one capacitive and inductive sensors.2. The wireless device according to claim 1 , wherein the controller is configured to determine a mutual capacitance between at least two of the capacitive sensors.3. The wireless device according to claim 1 , further comprising a controllable power output radio frequency (RF) amplifier for amplifying RF signals generated by the Wi-Fi unit claim 1 , wherein the controller is further configured to control the controllable RF amplifier based upon results from evaluating the capacitive and inductive values of said capacitive and inductive sensors.4. The wireless device according to claim 1 , wherein the controller is a microcontroller and memory claim 1 , and further comprises:an inductive sensor interface coupled to the at least one inductive sensor;a capacitive sensor interface coupled to the at least one capacitive sensor; andan analog-to-digital converter (ADC) having analog inputs coupled to the inductive and capacitive sensor ...

Подробнее
Номер записи: 68
11-07-2013 дата публикации

METHODS, APPARATUS AND SYSTEMS FOR POWER CONTROL AND TIMING ADVANCE

Номер: US20130176953A1
Автор: Haim John W., Stern-Berkowitz Janet A., Terry Stephen E.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

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 ...

Подробнее
Номер записи: 69
11-07-2013 дата публикации

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

Номер: US20130177008A1
Автор: CHO Joo-Young, Heo Youn-Hyoung, KIM Young-Bum, Kwak Yong-Jun, LEE Ju-Ho, Zhang Yujian
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

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 ...

Подробнее
Номер записи: 70
18-07-2013 дата публикации

TRANSMIT POWER CONTROL SIGNALING FOR COMMUINICATION SYSTEMS USING CARRIER AGGREGATION

Номер: US20130182654A1
Автор: Hariharan Priya, Nishiko Akihiko, Wengerter Christian
Принадлежит: Panasonic Corporation

This invention relates to methods for transmitting and receiving transmit power control commands from a base station to a group of mobile terminals in a OFDM based mobile communication system using component carrier aggregation of plural component carriers. Furthermore, the invention also relates to an implementation of these methods in hardware and software. The invention suggests an efficient scheme for signaling transmit power control commands. In one signaling format multiple TPC commands are sent for the uplink component carriers of a mobile terminal in one TPC message. In another signaling format, the TPC commands for the mobile terminal are signaled in respective TPC messages. A further aspect of the invention is the reduction of signaling overhead by signaling carrier group TPC commands that control the transmit power of a group of component carriers. Similarly, an all carrier TPC command is provided to control the transmit power on all uplink component carriers of a mobile terminal. 158-. (canceled)59. A method for transmitting transmit power control commands from a base station to a group of mobile terminals in a OFDM based mobile communication system using component carrier aggregation of plural component carriers , the method comprising the following steps performed by the base station:generating a transmit power control message having a plurality of transmit power control fields, wherein multiple of the transmit power control fields of each transmit power control message are respectively assigned to different mobile terminals, wherein the multiple transmit power control fields assigned to each mobile terminal signal transmit power commands for the uplink component carriers aggregated by the respective mobile terminal,mapping the transmit power control message to a control signaling region of a downlink component carrier, andtransmitting within a sub-frame the transmit power control message comprised in the control signaling region of the downlink ...

Подробнее
Номер записи: 71
25-07-2013 дата публикации

Sounding in Multicarrier Wireless Communications

Номер: US20130188581A1
Автор: Esmael Hejazi Dinan
Принадлежит: Individual

A wireless device transmits one or more sounding reference signals in parallel with transmission of at least one of a first preamble and a first packet. The wireless device is configured to not transmit a first sounding reference signal if at least one of the following conditions is satisfied: a) the first sounding reference signal transmission and a second preamble transmission coincide in the same subframe of the same cell group, b) the wireless device has insufficient power to transmit the first sounding reference signal in parallel with at least one of a third preamble and a second packet.

Подробнее
Номер записи: 72
25-07-2013 дата публикации

Pathloss Reference Configuration in a Wireless Device and Base Station

Номер: US20130188614A1
Автор: Esmael Hejazi Dinan
Принадлежит: Individual

A base station transmits message(s) assigning each of at least one secondary cell to a cell group in cell groups comprising a primary cell group and a secondary cell group. The at least one message comprises a pathloss reference for a secondary cell. The pathloss reference is a configurable parameter if the secondary cell is in the primary cell group. The configurable parameter is configurable to a downlink of the secondary cell or the primary cell. The pathloss reference is only configurable as a downlink of the secondary cell if the secondary cell is in the secondary cell group.

Подробнее
Номер записи: 73
25-07-2013 дата публикации

METHOD AND DEVICE FOR OBTAINING TRANSMISSION POWER CONTROL (TPC) COMMAND

Номер: US20130190035A1
Автор: Wang Yuren, Zhao Qingping
Принадлежит: ZTE CORPORATION

The disclosure provides a method for obtaining a Transmission Power Control (TPC) command, relating to the field of wireless communications. The method comprises the following steps: presetting a Signal to Interference plus Noise Ratio (SINR) value threshold, wherein the SINR value threshold comprising a highest value HSINR, a median value MSINR, and a lowest value LSINR; comparing a current SINR value with a target SINR value to obtain a difference value ΔSINR; and comparing the ΔSINR with the SINR value threshold, and obtaining a TPC command according to a result of comparison. The disclosure also provides a device for obtaining a TPC command. By the method or device in the disclosure, the accuracy and instantaneity of obtaining a TPC command are improved. 1. A method for obtaining a Transmission Power Control (TPC) command , characterized by comprising:presetting a Signal to Interference plus Noise Ratio (SINR) value threshold;comparing a current SINR value with a target SINR value to obtain a difference value ΔSINR;comparing the ΔSINR with the SINR value threshold, and obtaining a TPC command according to a result of comparison.2. The method according to claim 1 , characterized in that the current SINR value is obtained according to following steps:when a current service is a traffic service:if a measured Frame Error Rate (FER) value is greater than a target FER value, adding the target FER value onto the target SINR value;if the measured FER value is smaller than the target FER value, separating a Power Headroom Report (PHR) value of User Equipment (UE);comparing the separated PHR value and a preset target PHR value;when a current PHR value is greater than the target PHR value, adding the target FER value onto the target SINR value; when the current PHR value is not greater than the target PHR value, subtracting the target FER value from the target SINR value.3. The method according to claim 1 , characterized in that the current SINR value is obtained according ...

Подробнее
Номер записи: 74
01-08-2013 дата публикации

Simultaneous Transmission in Multiple Timing Advance Groups

Номер: US20130195048A1
Автор: Bendlin Ralf Matthias, Bertrand Pierre, Ekpenyong Anthony Edet
Принадлежит: TEXAS INSTRUMENTS INCORPORATED

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 ...

Подробнее
Номер записи: 75
15-08-2013 дата публикации

METHOD AND APPARATUS FOR IMPROVING RADIO FREQUENCY INDEX IN REAL TIME IN DISTRIBUTED NETWORK

Номер: US20130210479A1
Автор: Tang Xiajian, Yang Bojing
Принадлежит: ZTE CORPORATION

A real-time improvement method and a real-time improvement apparatus for a distributed network radio frequency performance are provided by the present invention. The method comprises: a data analysis unit receiving an input power, an output power and a link gain from a base station element node with a radio frequency module, and establishing a learning model of the base station element node according to the input power, the output power and the link gain; the data analysis unit obtaining an expected output power corresponding to the input power according to a correlation between a preset input power and the expected output power; in the learning model, regulating the link gain according to a difference value between the expected output power and the output power, until the difference value between the output power of the learning model and the expected output power reaches a preset range, and determining the link gain at this moment as a new link gain; and the data analysis unit sending the new link gain to the base station element node with a radio frequency module, and the base station element node regulating the link gain thereof according to the new link gain. 1. A real-time improvement method for a distributed network radio frequency performance , comprising the steps of:a data analysis unit receiving an input power, an output power and a link gain from a base station element node with a radio frequency module, and establishing a learning model of the base station element node according to the input power, the output power and the link gain;the data analysis unit obtaining an expected output power corresponding to the input power according to a correlation between a preset input power and the expected output power;in the learning model, regulating the link gain according to a difference value between the expected output power and the output power, until the difference value between the output power of the learning model and the expected output power reaches a ...

Подробнее
Номер записи: 76
15-08-2013 дата публикации

Power boosters for radio terminals

Номер: US20130210500A1
Автор: Ian Myrus GRAHAM, James Kennedy CAVERS, Mark William COTTON
Принадлежит: Tait Ltd

A conventional UE in a radio system based on LTE may be boosted for use in an extended geographical cell provided by an eNodeB. The booster may be connected to the UE in various ways which minimise the changes required to an otherwise standard UE device. The booster is activated by control signals from the UE, or by an internal switch, or by a power detector for example. Power headroom reports by the UE to the eNodeB are correct within the larger cell.

Подробнее
Номер записи: 77
22-08-2013 дата публикации

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

Номер: US20130217405A1
Автор: De Luca Laurent, Gourden Anne, Teixeira Filipe
Принадлежит: ST-Ericsson SA

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 ...

Подробнее
Номер записи: 78
29-08-2013 дата публикации

Method and apparatus for processing blind decoding results in a wireless communication system

Номер: US20130223376A1
Автор: Kibeom Seong, Tao Luo
Принадлежит: Qualcomm Inc

Systems and methodologies are described herein that facilitate processing and pruning of blind decoding results (e.g., associated with grant signaling) within a wireless communication environment. As described herein, blind decoding results associated with grant signaling and/or other suitable signaling can be pruned in various manners, thereby reducing false alarm probabilities associated with such results. For example, techniques are provided herein for constraining respective decoding candidates to possible radio network temporary identifier (RNTI) values, performing validity checking on payload of respective decoding candidates, and selecting a most likely decoding candidate from a previously pruned set of candidates. Further, techniques are described herein for generating filler bits (e.g., padding bits, reserved bits, etc.) in a grant message according to a predefined pattern, thereby enabling checking of such bits to further reduce false alarm rates.

Подробнее
Номер записи: 79
29-08-2013 дата публикации

Method for Uplink Fractional Transmit Power Control

Номер: US20130225226A1
Автор: Jawad Manssour
Принадлежит: Telefonaktiebolaget LM Ericsson AB

Embodiments herein relate to a user equipment ( 10 ), a radio base station ( 12 ) and methods therein for handling transmission power control of the user equipment ( 10 ). The user equipment ( 10 ) is served by the radio base station ( 12 ) in a serving cell (i) controlled by the radio base station ( 12 ). The radio base station ( 12 ) or user equipment obtains a first pathloss from the user equipment ( 10 ) towards the serving cell (i) and a a second pathloss from the user equipment ( 10 ) towards an interfered cell (j). The radio base station ( 12 ) or the user equipment ( 10 ) then selects a value of one or more parameters, respectively, which one or more parameters are to be used to control a transmission power of the user equipment ( 10 ) and which value is selected based on the first pathloss and the second pathloss.

Подробнее
Номер записи: 80
05-09-2013 дата публикации

METHODS AND DEVICES FOR REDUCING INTERFERENCE IN AN UPLINK

Номер: US20130231154A1
Автор: Whinnett Nick
Принадлежит: Mindspeed Technologies U.K., Limited

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 ...

Подробнее
Номер записи: 81
12-09-2013 дата публикации

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

Номер: US20130235838A1
Автор: Cho Hangyu, Chung Jaehoon, Kim Dongcheol, Lee Moonil
Принадлежит:

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 ...

Подробнее
Номер записи: 82
19-09-2013 дата публикации

Method and apparatus for selecting multiple transport formats and transmitting multiple transport blocks simultaneously with multiple h-arq processes

Номер: US20130242914A1
Автор: Arty Chandra, JIN Wang, Stephen E. Terry
Принадлежит: InterDigital Technology Corp

A method and apparatus for selecting multiple transport formats and transmitting multiple transport blocks (TBs) in a transmission time interval simultaneously with multiple hybrid automatic repeat request (H-ARQ) processes in a wireless communication system are disclosed. Available physical resources and H-ARQ processes associated with the available physical resources are identified and channel quality of each of the available physical resources is determined. Quality of service (QoS) requirements of higher layer data to be transmitted are determined. The higher layer data is mapped to at least two H-ARQ processes. Physical transmission and H-ARQ configurations to support QoS requirements of the higher layer data mapped to each H-ARQ process are determined. TBs are generated from the mapped higher layer data in accordance with the physical transmission and H-ARQ configurations of each H-ARQ process, respectively. The TBs are transmitted via the H-ARQ processes simultaneously.

Подробнее
Номер записи: 83
03-10-2013 дата публикации

Method and apparatus for allocating feedback channels in wireless communication system

Номер: US20130258970A1
Автор: Hee-Won Kang, Sang-Heon Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A base station determines quantities of information to be fed back by a mobile terminal using each of a first feedback channel and a second feedback channel, generates feedback control information used for determining a coding rate based on the determined quantities of information for each of the first feedback channel and the second feedback channel, and transmits, to the mobile terminal, a feedback channel allocation message containing the feedback control information and information on the first feedback channel and the second feedback channel.

Подробнее
Номер записи: 84
10-10-2013 дата публикации

POWER BOOST IN COMMUNICATION SYSTEM

Номер: US20130265920A1
Автор: Kim Joon Bae, Oksman Vladimir
Принадлежит:

Representative implementations of devices and techniques provide communication between networked nodes operating on a communication network medium. In an implementation, a node generates a broadcast frame that includes at least a preamble and a payload. The preamble of the broadcast frame may include auxiliary information. The auxiliary information may be associated with one or more symbols of the preamble. The auxiliary information may contain power boost information. 1. A method , comprising:decoding, at a node, a mobile application protocol (MAP) physical layer (PHY) frame, the MAP PHY frame including one or more symbols carrying auxiliary information that includes power boost information;generating a data frame, the data frame including one or more symbols at a power level in accordance with the power boost information of the auxiliary information; andtransmitting the data frame.2. The method of claim 1 , wherein the auxiliary information further includes one or more rules defining usage of the power boost information.3. The method of claim 2 , wherein the one or more rules indicates that one or more symbols is to be power boosted if a frame length is equal or greater than a frame length value defined in the one or more rules.4. The method of claim 1 , wherein the one or more symbols at the power level in accordance with the power boost information of the auxiliary information are at least associated with a preamble of the data frame.5. The method of claim 1 , wherein the one or more symbols at the power level in accordance with the power boost information of the auxiliary information are at least associated with a header of the data frame.6. The method of claim 1 , wherein the one or more symbols at the power level in accordance with the power boost information of the auxiliary information are at least associated with a preamble and a header of the data frame.7. The method of claim 1 , wherein the act of generating the data frame includes power boosting the one ...

Подробнее
Номер записи: 85
10-10-2013 дата публикации

Interference mitigation for control channels in a wireless communication network

Номер: US20130265968A1
Автор: Aamod Khandekar, Avneesh Agrawal, Naga Bhushan, Ravi Palanki
Принадлежит: Qualcomm Inc

Techniques for mitigating interference on control channels in a wireless communication network are described. In an aspect, high interference on radio resources used for a control channel may be mitigated by sending a request to reduce interference to one or more interfering stations. Each interfering station may reduce its transmit power on the radio resources, which may then allow the control channel to observe less interference. In one design, a user equipment (UE) may detect high interference on radio resources used for a control channel by a desired base station. The UE may send a request to reduce interference on the radio resources to an interfering base station, which may reduce its transmit power on the radio resources. The UE may receive the control channel on the radio resources from the desired base station and may observe less interference from the interfering base station.

Подробнее
Номер записи: 86
17-10-2013 дата публикации

POWER CONTROL METHOD AND DEVICE FOR PHYSICAL UPLINK CONTROL CHANNEL

Номер: US20130272157A1
Автор: Gao Xuejuan, Pan Xueming, Shen Zukang
Принадлежит: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.

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 ...

Подробнее
Номер записи: 87
17-10-2013 дата публикации

DC POWER CONTROL FOR POWER AMPLIFIERS

Номер: US20130273979A1
Автор: Langer Andreas
Принадлежит:

Some embodiments of the present disclosure relate to transmission techniques that result in power savings relative to previous solutions. These techniques often transmit a signal-of-interest by using two paths, namely, a transmission path (which includes a power amplifier) and a control path. The signal-of-interest is evaluated in “fast-track” fashion on the control path, such that the control path can “tune” a DC supply signal provided to the power amplifier. Thus, when a delayed version of the signal-of-interest is provided over the transmission path to the power amplifier, the DC supply signal provided to the power amplifier helps ensure that the power amplifier has “just enough” DC supply to ensure reliable operation without dissipating excess power. In this way, the techniques disclosed herein help to reduce power consumption in transmitters, thereby potentially helping to extend battery life and reduce undesired heating for users. 120-. (canceled)21. A communications device , comprising:a signal generator configured to provide a signal-of-interest to be amplified via a power amplifier and transmitted over an RF antenna;a transmission path extending between the signal generator and the power amplifier and comprising a delay element, wherein the delay element delays the signal-of-interest to provide a delayed signal-of-interest on the transmission path;a control path extending between the signal generator and the power amplifier and comprising a signal analyzer and a tunable DC power supply, wherein the signal analyzer is configured to analyze the signal-of-interest by evaluating an envelope thereof and induce a change in a DC power level provided by the tunable DC power supply based thereon; andwherein the power amplifier receives the DC power from the tunable DC power supply and amplifies the delayed-signal-of-interest as a function of the DC power, thereby facilitating transmission of the signal-of-interest over the RF antenna.22. The communications device of ...

Подробнее
Номер записи: 88
24-10-2013 дата публикации

Process for Performing Cubic Metric Computation in the Transmitter of a UE for a Wireless Communication System, and Apparatus for Performing the Same

Номер: US20130279351A1
Автор: Mark A. Wallis
Принадлежит: St Ericsson SA

A process for computing cubic metric used for performing Maximum Power Reduction (MPR) in the transmitter of a User Equipment communicating with a base station (BS), said cubic metric computation being performed before each time slot of said uplink transmission of data; said process being characterized in that it involves the steps of: —using PN generators ( 1 - 4 ) for generating random data which are used for performing said cubic metric computation, and —using the result of said computation for applying said Maximum Power Reduction (MPR) for each time slot of said uplink transmission.

Подробнее
Номер записи: 89
24-10-2013 дата публикации

Method and Arrangement for Transmit Power Control of Multiple Downlink Carriers

Номер: US20130279387A1
Автор: Fan Rui, HU RONG, Kazmi Muhammad
Принадлежит:

The present invention relates to a method and an arrangement for controlling downlink power in a multi-carrier communication network system. The communication network system comprises communication network nodes () communicating with a plurality of user equipments () on uplink () and downlink () carriers over a radio interface. Downlink transmit power control commands are sent on at least one uplink control channel to support power control for a multiple of downlink carriers. Each transmit power control command is assigned a pre-determined code word known by said user equipment () and said communication network node () and/or different pre-determined slot formats, known by said user equipment () and said communication network node (), are used to integrate different number of transmit power control command based on the number of used downlink and uplink carriers. 1. A method in a user equipment of controlling downlink power in a multi-carrier communication network system comprising communication network nodes communicating with a plurality of user equipments on uplink carriers and downlink carriers over a radio interface , the method comprising:sending downlink transmit power control commands on at least one uplink control channel, the downlink transmit power control commands comprising information for individual power control for a multiple of downlink carriers.28-. (canceled)9. A method according to claim 1 , wherein the multi-carrier communication network system is based on CDMA technology.10. A method according to claim 1 , wherein the multi-carrier communication network system is HSDPA or HSUPA or HSPA.11. An arrangement in a user equipment of controlling downlink power in a multi-carrier communication network system comprising communication network nodes communicating with a plurality of user equipments on uplink carriers and downlink carriers over a radio interface claim 1 , the arrangement comprising:a transmitting unit arranged to send downlink transmit ...

Подробнее
Номер записи: 90
24-10-2013 дата публикации

Method for controlling uplink power in a broadband wireless access system

Номер: US20130281093A1
Автор: Inuk JUNG, Jinsam Kwak, Kiseon Ryu, Wookbong Lee
Принадлежит: LG ELECTRONICS INC

The present invention relates to a broadband wireless access system, and more particularly, to a method for efficiently determining power for ranging performed by a terminal on a target base station or a target region during handover or during changing of a region. A method for controlling uplink power for network reentry of a terminal from a first region to a second region in a broadband wireless access system, according to an embodiment of the present invention, comprises the steps of: receiving a media access control (MAC) management message including a power control parameter that is to be applied to the second region from the first region; and performing ranging to the second region by applying the power control parameter.

Подробнее
Номер записи: 91
24-10-2013 дата публикации

Method and a device for adjusting the transmission power of signals transferred by plural mobile terminals

Номер: US20130281149A1
Автор: Julien Guillet, Loic Brunel, Nicolas Gresset
Принадлежит: Mitsubishi Electric Corp

A method for adjusting transmission power, in a wireless cellular telecommunication network, of signals transferred by plural mobile terminals through a wireless interface, the mobile terminals being served by at least one base station or by home base stations, the home base stations being located in the cell of the at least one base station. The method includes: obtaining at least the path gains between the mobile terminals and the at least one base station and at least one home base station; determining statistics from the obtained path gains; obtaining at least one coefficient of a function according to at least a part of the statistics; transferring an information representative of the at least one obtained coefficient to the mobile terminals.

Подробнее
Номер записи: 92
31-10-2013 дата публикации

Systems and methods for wireless communication of long data units

Номер: US20130286961A1
Автор: Lin Yang, Sameer Vermani
Принадлежит: Qualcomm Inc

Systems and methods for communicating long packets are described herein. In some aspects, an apparatus for wireless communication includes a processor and transmitter. The processor is configured to determine a modulation coding scheme (MCS) of a plurality of MCSs for a plurality of data symbols, each MCS of the plurality of MCS having a different MCS index value. Further, the processor is configured to generate a data unit comprising a set of training fields periodically inserted between the plurality of data symbols after every n number of data symbols, where n depends on the MCS index value of the MCS. The transmitter is configured to transmit wirelessly via wireless local area network the data unit to one or more devices.

Подробнее
Номер записи: 93
07-11-2013 дата публикации

Method for determining transmission power for transmitting uplink signals between terminals in a wireless communication system that supports terminal-to-terminal communication, and apparatus therefor

Номер: US20130295983A1
Автор: Dongcheol Kim, Hangyu Cho, Jiwoong Jang, Kyujin Park
Принадлежит: LG ELECTRONICS INC

Disclosed is a method for determining transmission power for transmitting uplink signals between terminals in a wireless communication system that supports terminal-to-terminal communication, and an apparatus therefor. A method in which a first terminal determines transmission power for transmitting an uplink signal to a second terminal in a wireless communication system that supports terminal-to-terminal communication comprises the following steps: estimating a channel state based on a second terminal-specific signal received from the second terminal; transmitting the estimated channel information to a base station; receiving a message, including information on a transmission power control factor, from the base station or from the second terminal; and determining transmission power for transmitting an uplink signal to the second terminal based on the received message.

Подробнее
Номер записи: 94
14-11-2013 дата публикации

POWER BASED GAIN CONTROL ADJUSTMENT

Номер: US20130301428A1
Автор: LIANG YANGWEN, QIAN XING, Snyder Christopher Eugene, WENG Jianfeng, XU QING FENG
Принадлежит: RESEARCH IN MOTION LIMITED

Method and devices for use in a wireless device are described herein. A signal is received over a plurality of time segments, the signal over each time segment including a plurality of resource element blocks. For each time segment, at least one resource element block is selected from the plurality of resource element blocks of the time segment based on information determined about the time segment. For each time segment, a power value associated with the at least one resource element block of the time segment is determined. For each time segment, a gain adjustment value to adjust the gain of the time segment or one or more subsequent time segments of the signal is determined based upon the power value associated with the at least one resource element block. 1. A method for use in a receiver comprising: selecting at least one resource element block from the plurality of resource element blocks of the time segment based on information determined about the time segment;', 'determining a power value associated with the at least one resource element block of the time segment; and', 'determining a gain adjustment value to adjust the gain of the time segment or one or more subsequent time segments based upon the power value associated with the at least one resource element block., 'for each time segment, 'receiving a signal over a plurality of time segments, the signal over each time segment comprising a plurality of resource element blocks;'}2. The method of wherein the signal over each time segment comprises a plurality of orthogonal frequency division multiplexing (OFDM) symbols claim 1 , each resource element block comprises a plurality of resource elements and each resource element comprises an OFDM symbol duration on an OFDM subcarrier.3. The method of further comprising converting the signal from time domain into frequency domain.4. The method of wherein determining the power value associated with the resource element block of the time segment comprises: measuring ...

Подробнее
Номер записи: 95
14-11-2013 дата публикации

Power adjusting method and apparatus

Номер: US20130301763A1
Автор: Chengquan HUANG, Yunbao Zeng
Принадлежит: Huawei Technologies Co Ltd

A power adjusting method and apparatus provided by embodiments of the present invention relate to the field of communications. The power adjusting method of this embodiment includes: receiving a signal from a sending end, where the signal includes a cyclic prefix (CP) signal; detecting and acquiring first receiving power and second receiving power of the CP signal, where the first receiving power is average power of N sampling points of the CP signal, and the second receiving power is average power of M sampling points of the CP signal; after determining that a ratio of the first receiving power to target power is greater than a first preset threshold, adjusting signal power magnification; and after determining that the ratio of the second receiving power to the target power is greater than a second preset threshold, adjusting the signal power magnification again.

Подробнее
Номер записи: 96
21-11-2013 дата публикации

Method and system for connection establishment bias for wireless networks

Номер: US20130308497A1
Автор: Biswaroop Mukherjee, Robert Novak, Siva Dharshan Muruganathan, Tank TABET, William Anthony Gage
Принадлежит: Research in Motion Ltd

A method at a user equipment, and the user equipment, configured for establishing a connected mode with a first network node within a wireless network, the method receiving, at the user equipment, a connection establishment bias; applying the connection establishment bias at the user equipment, while the user equipment is in an idle mode, to at least one network node power level value, thereby creating biased power level values; and connecting to the first network node based on the biased power level values.

Подробнее
Номер записи: 97
21-11-2013 дата публикации

Wireless communication system and method of controlling a transmission power

Номер: US20130308573A1
Автор: Nahoko Kuroda
Принадлежит: NEC Corp

A base station is provided which notifies a mobile station of transmission power information for an uplink RACH, the mobile station transmits transmission delay estimation information on the RACH to the base station over the RACH at a transmission power based on the transmission power information, and the base station changes the transmission power information according to the transmission delay estimation information and notifies the mobile station of the changed transmission power information. The mobile station retransmits data or a preamble if the mobile station does not receive a notification that the base station has received the data or the preamble correctly after a predetermined time. The base station transmits the transmission power information over a BCH and a CPICH transmitted to a plurality of mobile stations.

Подробнее
Номер записи: 98
21-11-2013 дата публикации

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

Номер: US20130308575A1
Автор: Chen Wanshi, MEYLAN Arnaud, Montojo Juan
Принадлежит:

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 ...

Подробнее
Номер записи: 99
21-11-2013 дата публикации

Communication apparatus and communication method

Номер: US20130308723A1
Автор: Takeo Miyata
Принадлежит: Kyocera Corp

When a determination is made that communication by an SM scheme is suitable, a setting unit performs switching from a communication level by an STC scheme to the communication level by the SM scheme, between the communication level at a first level of MCS by the space-time coding scheme and the communication level at a second level of MCS by the SM scheme. When a determination is made that communication by the SM scheme is unsuitable, the setting unit performs switching from the communication level by the STC scheme to the communication level by the spatial multiplexing scheme, between the communication level at a third level of MCS, which is higher than the first level, by the space-time coding scheme and a fourth level of the modulation scheme and the coding rate, which is higher than the second level, by the SM scheme.

Подробнее
Номер записи: 100