MX2012003828A - Sistema de comunicacion inalambrica, aparato de comunicacion, metodo de comunicacion inalambrica y aparato terminal. - Google Patents
Sistema de comunicacion inalambrica, aparato de comunicacion, metodo de comunicacion inalambrica y aparato terminal.Info
- Publication number
- MX2012003828A MX2012003828A MX2012003828A MX2012003828A MX2012003828A MX 2012003828 A MX2012003828 A MX 2012003828A MX 2012003828 A MX2012003828 A MX 2012003828A MX 2012003828 A MX2012003828 A MX 2012003828A MX 2012003828 A MX2012003828 A MX 2012003828A
- Authority
- MX
- Mexico
- Prior art keywords
- transmission path
- path status
- transmission
- measurement reference
- wireless communication
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0028—Formatting
- H04L1/0029—Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
Para llevar a cabo eficientemente control adaptivo incluso en el caso de muchas antenas de transmisión/recepción, una estación base (200) es provista con una señal de referencia para una parte de generación de medición de estado de canal (209) que genera una señal de referencia para medición de estado de canal para una terminal móvil (300) para medir un estado de canal, y partes de antenas de transmisión (208-1, 208-2) que transmiten señales de referencia para mediciones de estado de canal a la terminal móvil (300) con cada puerto de antenas de transmisión, y la terminal móvil (300) es provista con partes de antenas de recepción (301-1, 301-2) que reciben la señal de referencia para medición de estado de canal transmitida desde la estación base (200) en puertos de antenas de recepción, y una parte de generación de información de retroalimentación (310) que mide un estado de canal entre el puerto de antenas de transmisión y el puerto de antenas de recepción con base en la señal de referencia recibida para medición de estado de canal para calcular un valor de estimación de estado de canal, lleva a cabo agrupación en una pluralidad de valores de estimación de estado de canal, y genera información de retroalimentación para la estación base 200.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009230623A JP5149257B2 (ja) | 2009-10-02 | 2009-10-02 | 無線通信システム、通信装置および無線通信方法 |
PCT/JP2010/066085 WO2011040258A1 (ja) | 2009-10-02 | 2010-09-16 | 無線通信システム、通信装置、無線通信方法および端末装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2012003828A true MX2012003828A (es) | 2012-05-08 |
Family
ID=43826084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2012003828A MX2012003828A (es) | 2009-10-02 | 2010-09-16 | Sistema de comunicacion inalambrica, aparato de comunicacion, metodo de comunicacion inalambrica y aparato terminal. |
Country Status (8)
Country | Link |
---|---|
US (1) | US9681322B2 (es) |
EP (1) | EP2485522A4 (es) |
JP (1) | JP5149257B2 (es) |
CN (1) | CN102577486B (es) |
BR (1) | BR112012007539B1 (es) |
EA (1) | EA026041B1 (es) |
MX (1) | MX2012003828A (es) |
WO (1) | WO2011040258A1 (es) |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8873585B2 (en) | 2006-12-19 | 2014-10-28 | Corning Optical Communications Wireless Ltd | Distributed antenna system for MIMO technologies |
US8249540B1 (en) | 2008-08-07 | 2012-08-21 | Hypres, Inc. | Two stage radio frequency interference cancellation system and method |
WO2011085509A1 (en) * | 2010-01-12 | 2011-07-21 | Telefonaktiebolaget L M Ericsson (Publ) | Layer-to dm rs port mapping for lte-advanced |
KR101403150B1 (ko) * | 2010-09-03 | 2014-06-03 | 후지쯔 가부시끼가이샤 | 다중-셀 mimo를 위한 채널 상태 피드백 |
JP5578617B2 (ja) * | 2010-10-18 | 2014-08-27 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | 送信方法、送信装置、受信方法および受信装置 |
EP2701327B1 (en) * | 2011-04-19 | 2024-05-29 | Sun Patent Trust | Pre-coding method and pre-coding device |
JP5623642B2 (ja) * | 2011-06-24 | 2014-11-12 | パナソニックインテレクチュアル プロパティ コーポレーション オブアメリカPanasonic Intellectual Property Corporation of America | 送信装置、送信方法、受信装置および受信方法 |
WO2013089191A1 (ja) * | 2011-12-13 | 2013-06-20 | 京セラ株式会社 | 移動端末、無線通信システム、および無線通信方法 |
EP2832012A1 (en) | 2012-03-30 | 2015-02-04 | Corning Optical Communications LLC | Reducing location-dependent interference in distributed antenna systems operating in multiple-input, multiple-output (mimo) configuration, and related components, systems, and methods |
CN103378889A (zh) * | 2012-04-24 | 2013-10-30 | 株式会社Ntt都科摩 | 码本生成方法、码本生成装置以及初始码本生成方法 |
JP6093120B2 (ja) * | 2012-07-13 | 2017-03-08 | シャープ株式会社 | 移動局装置、基地局装置及び通信方法 |
US9407343B2 (en) * | 2012-08-31 | 2016-08-02 | Google Technology Holdings LLC | Method and apparatus for mitigating downlink interference |
SG2013067723A (en) * | 2012-09-07 | 2014-04-28 | Agency Science Tech & Res | Method and system for high bandwidth and low power body channel communication |
KR101972945B1 (ko) | 2012-09-18 | 2019-04-29 | 삼성전자 주식회사 | 무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 장치 |
EP2926466A1 (en) | 2012-11-29 | 2015-10-07 | Corning Optical Communications LLC | HYBRID INTRA-CELL / INTER-CELL REMOTE UNIT ANTENNA BONDING IN MULTIPLE-INPUT, MULTIPLE-OUTPUT (MIMO) DISTRIBUTED ANTENNA SYSTEMS (DASs) |
JP6086997B2 (ja) * | 2013-02-14 | 2017-03-01 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおいて大規模mimoのためのアンテナ構成情報の提供方法及びそのための装置 |
WO2014129799A1 (ko) * | 2013-02-19 | 2014-08-28 | 엘지전자 주식회사 | 다중 안테나 무선 통신 시스템에서 신호 전송 방법 및 이를 위한 장치 |
KR102174636B1 (ko) * | 2013-03-14 | 2020-11-05 | 엘지전자 주식회사 | 무선 통신 시스템에서 채널 상태 정보를 보고하는 방법 및 이를 위한 장치 |
US9768849B2 (en) | 2013-04-04 | 2017-09-19 | Lg Electronics Inc. | Method and apparatus for reporting channel status information in wireless communication system |
US9680552B2 (en) | 2013-04-16 | 2017-06-13 | Lg Electronics Inc. | Method and apparatus for reporting channel state information in wireless communication system |
WO2014189129A1 (ja) * | 2013-05-24 | 2014-11-27 | 日本電信電話株式会社 | 無線通信装置及び無線通信方法 |
US9252854B2 (en) * | 2013-06-07 | 2016-02-02 | Industrial Technology Research Institute | User equipment having channel quality indicator feedback mechanism |
EP3014782A4 (en) * | 2013-06-25 | 2017-01-18 | LG Electronics Inc. | Method for performing beamforming based on partial antenna array in wireless communication system and apparatus therefor |
JP6151108B2 (ja) * | 2013-06-28 | 2017-06-21 | 株式会社Nttドコモ | 無線基地局、ユーザ端末及び参照信号送信方法 |
US9350444B2 (en) * | 2013-08-22 | 2016-05-24 | Broadcom Corporation | Wireless communication device with switched polarization and methods for use therewith |
EP3042464B1 (en) | 2013-09-06 | 2020-04-29 | Telefonaktiebolaget LM Ericsson (publ) | Improved adaptation of transmission format |
US20150110210A1 (en) * | 2013-10-18 | 2015-04-23 | Nokia Solutions And Networks Oy | Channel state information acquisition and feedback for full dimension multiple input multiple output |
CN104980247B (zh) * | 2014-04-04 | 2019-11-22 | 北京三星通信技术研究有限公司 | 自适应调整调制编码方式和参考信号图样的方法、基站、终端和*** |
US9525472B2 (en) * | 2014-07-30 | 2016-12-20 | Corning Incorporated | Reducing location-dependent destructive interference in distributed antenna systems (DASS) operating in multiple-input, multiple-output (MIMO) configuration, and related components, systems, and methods |
KR102334620B1 (ko) * | 2014-09-25 | 2021-12-03 | 엘지전자 주식회사 | 채널 추정을 수행하기 위한 방법 및 이를 위한 장치 |
WO2016048087A1 (ko) * | 2014-09-25 | 2016-03-31 | 엘지전자 주식회사 | 다중 안테나 무선 통신 시스템에서 참조 신호 전송 방법 및 이를 위한 장치 |
US9729267B2 (en) | 2014-12-11 | 2017-08-08 | Corning Optical Communications Wireless Ltd | Multiplexing two separate optical links with the same wavelength using asymmetric combining and splitting |
WO2016164146A2 (en) * | 2015-03-16 | 2016-10-13 | Lockheed Martin Corporation | Apparatus and method for increased data rates in underwater communications using orbital angular momentum |
JP6583409B2 (ja) * | 2015-06-23 | 2019-10-02 | 富士通株式会社 | 無線通信制御方法、無線通信システム、受信装置および送信装置 |
WO2017113397A1 (zh) * | 2015-12-31 | 2017-07-06 | 华为技术有限公司 | 终端设备及定位*** |
JP6729152B2 (ja) * | 2016-08-04 | 2020-07-22 | 富士通オプティカルコンポーネンツ株式会社 | 光伝送システムおよび光送信器 |
US10257105B2 (en) | 2016-12-02 | 2019-04-09 | At&T Intellectual Property I, L.P. | Facilitation of physical layer design for 5G networks or other next generation networks |
US10090980B2 (en) | 2017-01-08 | 2018-10-02 | At&T Intellectual Property I, L.P. | Transmission of demodulation reference signals for a 5G wireless communication network or other next generation network |
WO2018134838A1 (en) | 2017-01-20 | 2018-07-26 | Wisig Networks Private Limited | System and method for generating spreaded sequence with low peak-to-average power ratio (papr) waveform |
WO2018215052A1 (en) * | 2017-05-23 | 2018-11-29 | Huawei Technologies Co., Ltd. | Channel state information related feedback reporting and channel state information acquisition |
KR102403763B1 (ko) * | 2017-06-27 | 2022-05-30 | 삼성전자주식회사 | 무선 통신 시스템에서 명시적 채널 상태 정보 피드백을 위한 피드백 정보 설정하기 위한 방법 |
CN109787664A (zh) | 2017-11-15 | 2019-05-21 | 索尼公司 | 用于无线通信***的电子设备、方法、装置和存储介质 |
CN111903065B (zh) * | 2018-03-23 | 2023-12-05 | 株式会社Ntt都科摩 | 基站以及发送方法 |
JP2022047547A (ja) * | 2019-01-11 | 2022-03-25 | ソニーグループ株式会社 | 無線基地局、および端末装置 |
US10778298B1 (en) | 2019-03-29 | 2020-09-15 | At&T Intellectual Property I, L.P. | Context-based precoding matrix computations for radio access network for 5G or other next generation network |
US11139868B2 (en) * | 2019-11-12 | 2021-10-05 | Nokia Technologies Oy | Propagation link selection in telecommunication systems |
CN115053498B (zh) * | 2020-02-21 | 2024-05-14 | 华为技术有限公司 | 预测信道状态信息的方法及装置 |
WO2022025316A1 (ko) * | 2020-07-29 | 2022-02-03 | 엘지전자 주식회사 | 무선 통신 시스템에서 다중 안테나를 이용하여 신호를 송신 및 수신하기 위한 방법 및 장치 |
Family Cites Families (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6356555B1 (en) * | 1995-08-25 | 2002-03-12 | Terayon Communications Systems, Inc. | Apparatus and method for digital data transmission using orthogonal codes |
JP4308655B2 (ja) * | 2001-09-14 | 2009-08-05 | 富士通株式会社 | 移動通信システム,移動局及び基地局 |
FR2863422A1 (fr) * | 2003-12-04 | 2005-06-10 | France Telecom | Procede d'emission multi-antennes d'un signal precode lineairement,procede de reception, signal et dispositifs correspondants |
US8160121B2 (en) * | 2007-08-20 | 2012-04-17 | Rearden, Llc | System and method for distributed input-distributed output wireless communications |
KR100876797B1 (ko) * | 2004-07-13 | 2009-01-07 | 삼성전자주식회사 | 다중 안테나 시스템에서의 빔포밍 장치 및 방법 |
CN101027863B (zh) | 2004-09-27 | 2012-06-27 | 夏普株式会社 | 无线发送装置 |
JP4884722B2 (ja) * | 2005-03-31 | 2012-02-29 | 株式会社エヌ・ティ・ティ・ドコモ | 無線通信装置及び無線通信方法 |
EP1885071A4 (en) * | 2005-05-20 | 2015-01-28 | Fujitsu Ltd | RADIO COMMUNICATION DEVICE, MOBILE TERMINAL DEVICE, RADIO COMMUNICATION METHOD |
US7580445B2 (en) * | 2005-08-22 | 2009-08-25 | Nec Laboratories America, Inc. | Nonlinear precoding in code-division multiple access communication system |
US7949318B2 (en) * | 2007-02-05 | 2011-05-24 | Nec Laboratories America, Inc. | Multi-rank beamforming precoding apparatus and method |
KR100938070B1 (ko) * | 2006-08-31 | 2010-01-21 | 삼성전자주식회사 | 다중 안테나 시스템에서의 데이터 송/수신장치 및 방법과이를 제공하는 시스템 |
US8111782B2 (en) | 2006-08-31 | 2012-02-07 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting/receiving data in a multi-antenna system, and system using the same |
WO2008030806A2 (en) * | 2006-09-06 | 2008-03-13 | Qualcomm Incorporated | Codeword permutation and reduced feedback for grouped antennas |
EP2147516B1 (en) * | 2007-04-20 | 2015-12-09 | InterDigital Technology Corporation | Method and apparatus for efficient precoding information validation for mimo communications |
US8199840B2 (en) * | 2007-04-26 | 2012-06-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Multiple-input, multiple-output communication system with reduced feedback |
US8306140B2 (en) * | 2007-04-30 | 2012-11-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement for adapting a multi-antenna transmission |
KR101282522B1 (ko) * | 2007-06-19 | 2013-07-04 | 엘지전자 주식회사 | 다중 안테나 시스템에서 제어정보 전송 방법 |
US8160601B2 (en) * | 2007-06-21 | 2012-04-17 | Elektrobit Wireless Communications Ltd. | Method for optimizing spatial modulation in a wireless link and network element thereto |
US20100272034A1 (en) * | 2007-09-28 | 2010-10-28 | Panasonic Corporation | Base station device, mobile station device, communication system, channel estimation method, transmission antenna detection method, and program |
KR100995045B1 (ko) * | 2007-12-31 | 2010-11-19 | 엘지전자 주식회사 | 협동 다중 입출력 통신 시스템에서, 프리코딩된 신호를송신하는 방법 |
US8537924B2 (en) * | 2008-01-14 | 2013-09-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Open loop precoder cycling in MIMO communications |
US8811353B2 (en) * | 2008-04-22 | 2014-08-19 | Texas Instruments Incorporated | Rank and PMI in download control signaling for uplink single-user MIMO (UL SU-MIMO) |
WO2009153809A2 (en) * | 2008-06-18 | 2009-12-23 | Centre Of Excellence In Wireless Technology | Precoding for single transmission streams in multiple antenna systems |
EP2293473B8 (en) * | 2008-06-23 | 2016-09-21 | Sun Patent Trust | Method of arranging reference signals and wireless communication base station apparatus |
ES2522561T3 (es) * | 2008-07-01 | 2014-11-17 | Telefonaktiebolaget L M Ericsson (Publ) | Procedimientos y aparatos con matrices de precodificación en un sistema de telecomunicaciones MIMO |
US8098750B2 (en) * | 2008-07-10 | 2012-01-17 | Infineon Technologies Ag | Method and device for transmitting a plurality of data symbols |
US8213293B2 (en) * | 2008-08-13 | 2012-07-03 | Lg Electronics Inc. | Method for implementing transmit diversity at a wireless mobile communication system adopting SC-FDMA scheme |
KR101505685B1 (ko) * | 2008-09-26 | 2015-03-25 | 엘지전자 주식회사 | 다중셀 무선 네트워크에서 협력적 mimo 동작을 위한 방법 및 장치 |
EP2351246B1 (en) * | 2008-11-03 | 2017-02-22 | Telefonaktiebolaget LM Ericsson (publ) | Method for transmission of reference signals and determination of precoding matrices for multi-antenna transmission |
KR101707680B1 (ko) * | 2008-12-21 | 2017-02-17 | 엘지전자 주식회사 | 무선 통신 시스템에서 정보 전송 장치 및 방법 |
US8472539B2 (en) * | 2009-04-07 | 2013-06-25 | Lg Electronics Inc. | Method of transmitting power information in wireless communication system |
US9154352B2 (en) * | 2009-04-21 | 2015-10-06 | Qualcomm Incorporated | Pre-communication for relay base stations in wireless communication |
KR101549024B1 (ko) * | 2009-04-22 | 2015-09-01 | 엘지전자 주식회사 | 무선 통신 시스템에서 다중 셀 협력 통신을 위한 프리코딩 코드북을 이용하여 피드백 정보 및 데이터를 전송하는 방법 |
KR101647377B1 (ko) * | 2009-05-22 | 2016-08-10 | 엘지전자 주식회사 | 무선 통신 시스템에서 안테나 전송 전력에 따른 적응적인 다중 안테나 전송 방법 및 장치 |
EP2482470A4 (en) * | 2009-09-25 | 2015-08-19 | Fujitsu Ltd | METHOD AND DEVICE FOR GENERATING A BOOK OF PRECODING MATRIX CODES |
-
2009
- 2009-10-02 JP JP2009230623A patent/JP5149257B2/ja active Active
-
2010
- 2010-09-16 EA EA201270493A patent/EA026041B1/ru not_active IP Right Cessation
- 2010-09-16 MX MX2012003828A patent/MX2012003828A/es active IP Right Grant
- 2010-09-16 CN CN201080043893.8A patent/CN102577486B/zh active Active
- 2010-09-16 BR BR112012007539-0A patent/BR112012007539B1/pt active IP Right Grant
- 2010-09-16 EP EP10820377.9A patent/EP2485522A4/en not_active Withdrawn
- 2010-09-16 WO PCT/JP2010/066085 patent/WO2011040258A1/ja active Application Filing
-
2012
- 2012-03-30 US US13/436,330 patent/US9681322B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20120213111A1 (en) | 2012-08-23 |
BR112012007539A2 (pt) | 2020-08-11 |
US9681322B2 (en) | 2017-06-13 |
JP5149257B2 (ja) | 2013-02-20 |
EA026041B1 (ru) | 2017-02-28 |
EP2485522A1 (en) | 2012-08-08 |
WO2011040258A1 (ja) | 2011-04-07 |
CN102577486A (zh) | 2012-07-11 |
CN102577486B (zh) | 2015-11-25 |
BR112012007539B1 (pt) | 2021-05-18 |
EP2485522A4 (en) | 2013-05-01 |
EA201270493A1 (ru) | 2012-12-28 |
JP2011082603A (ja) | 2011-04-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MX2012003828A (es) | Sistema de comunicacion inalambrica, aparato de comunicacion, metodo de comunicacion inalambrica y aparato terminal. | |
WO2010147416A3 (en) | Method and apparatus for feeding back channel state information | |
FI3613158T3 (fi) | Menetelmä ja laite csi-rs-lähetysyleiskustannuksen vähentämiseksi langattomassa viestintäjärjestelmässä | |
WO2011013989A3 (en) | Method and apparatus for transmitting reference signal in multiple input multiple output communication system | |
WO2011085187A3 (en) | Method and apparatus for performing uplink antenna transmit diversity | |
TWI316339B (en) | Apparatus and method for transmitting/receiving data in a mobile communication system using multiple antennas | |
MX2014003647A (es) | Comunicacion por microondas de punto a multipunto. | |
MY152607A (en) | Communication system, communication apparatus, and electric-field-coupling antenna | |
WO2011013990A3 (en) | Method and apparatus for transmitting reference signal for reducing inter-cell interference in multiple input multiple output communication system | |
WO2011005576A3 (en) | Method for performing antenna mangement in lte-a communication systems and corresponding apparatus | |
JP2013510492A5 (es) | ||
PH12019502125A1 (en) | Wireless communication method and apparatus | |
WO2013025070A3 (en) | Apparatus and method for supporting multi-antenna transmission in beamformed wireless communication system | |
MX344539B (es) | Metodo y aparato para transmitir y recibir informacion de estado de canal en sistema de comunicacion inalambrica que soporta transmision cooperativa. | |
WO2011037426A3 (ko) | 다중 안테나 무선 통신 시스템에서 단말이 채널 품질 지시자를 피드백하는 방법 및 이를 위한 장치 | |
GB2491157B (en) | Method and apparatus for antenna selection in wireless communications systems | |
CN103458424B (zh) | 基于功率检测及环路延迟计算的自干扰消除方法 | |
MX2011009554A (es) | Sistema de comunicacion inalambrica, aparato terminal, aparato de estacion base y metodo de comunicacion inalambrica. | |
MX2012008309A (es) | Metodo y aparato para transmitir señal de referencia de enlace descendente en sistma de comunicacion inalambrica que soporta multiples antenas. | |
WO2010019618A3 (en) | Channel classification and rate adaptation for su-mimo systems | |
WO2010110576A3 (en) | Method and apparatus for transmitting reference signal in wireless communication system | |
WO2013032188A3 (en) | Apparatus and method for selecting best beam in wireless communication system | |
WO2008156067A1 (ja) | 移動通信システムにおける基地局装置、ユーザ装置及び方法 | |
WO2012093794A3 (en) | Channel sounding method in wireless local area network system and apparatus for supporting the same | |
WO2012077989A3 (en) | Channel status information feedback method and apparatus for a distributed antenna mobile communication system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant or registration |