KR101084427B1 - 직교 주파수 분할 다중화 통신 시스템에서 채널 품질 및 프리코딩 메트릭 피드백을 제공하기 위한 방법 및 장치 - Google Patents
직교 주파수 분할 다중화 통신 시스템에서 채널 품질 및 프리코딩 메트릭 피드백을 제공하기 위한 방법 및 장치 Download PDFInfo
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
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- 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
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
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- 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
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
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- 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
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
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- 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
- H04B7/0658—Feedback reduction
- H04B7/066—Combined feedback for a number of channels, e.g. over several subcarriers like in orthogonal frequency division multiplexing [OFDM]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
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- 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
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals
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- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/03414—Multicarrier
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- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels
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- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03343—Arrangements at the transmitter end
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Abstract
Description
Claims (15)
- 주파수 대역폭이 복수의 자원 블럭 그룹(Resource Block Group) ― 상기 자원 블럭 그룹 각각은 하나 이상의 자원 블럭(Resource Block)을 가짐 ― 으로 분할되는 직교 주파수 분할 다중화 통신 시스템(Orthogonal Frequency Division Multiplexing communication system)에서 채널 품질 피드백을 제공하는 방법으로서,상기 복수의 자원 블럭 그룹 중 적어도 하나의 자원 블럭 그룹과 연관된 하나 이상의 채널 품질 파라미터를 측정하는 단계;상기 복수의 자원 블럭 그룹 중, 하나 이상이면서 전부는 아닌 자원 블럭 그룹을 선택하는 단계;상기 측정에 기초하여, 상기 선택된 하나 이상의 자원 블럭 그룹에 대해 채널 품질 정보 및 프리코딩 메트릭(precoding metric)을 결정하는 단계; 및상기 선택된 하나 이상의 자원 블럭 그룹에 대해서만, 상기 선택된 하나 이상의 자원 블럭 그룹에 대해 결정된 채널 품질 정보 및 프리코딩 메트릭을 동일한 채널을 통해 무선 액세스 네트워크에 보고하는 단계를 포함하는 채널 품질 피드백 제공 방법.
- 삭제
- 제1항에 있어서,상기 선택하는 단계는, 상기 측정된 하나 이상의 채널 품질 파라미터에 기초하여 상기 하나 이상의 자원 블럭 그룹을 선택하는 단계를 포함하는 채널 품질 피드백 제공 방법.
- 제1항에 있어서,상기 채널 품질 정보는 CQI 정보를 포함하며, 상기 프리코딩 메트릭은 프리코딩 매트릭스 표시자(Precoding Matrix Indicator)인 채널 품질 피드백 제공 방법.
- 삭제
- 제1항에 있어서,상기 선택된 하나 이상의 자원 블럭 그룹과 연관된 채널 품질 정보 및 프리코딩 메트릭을 무선 액세스 네트워크에 보고하는 것은, 조인트(joint) 채널 품질 정보/프리코딩 메트릭 보고(report)를 상기 무선 액세스 네트워크에 전달하는 것을 포함하는 채널 품질 피드백 제공 방법.
- 제1항에 있어서,상기 하나 이상의 자원 블럭 그룹을 선택하는 단계는, 비트맵 피드백 스킴(bitmap feedback scheme), Top-M 피드백 스킴, 및 하이브리드 피드백 스킴 중 하나 이상에 기초하여 결정되는 채널 품질 피드백 제공 방법.
- 제1항에 있어서,상기 보고된 프리코딩 메트릭에 기초하여 다운링크 신호를 빔포밍(beamforming)하는 단계를 더 포함하는 채널 품질 피드백 제공 방법.
- 주파수 대역폭이 복수의 자원 블럭 그룹 ― 상기 자원 블럭 그룹 각각은 하나 이상의 자원 블럭을 가짐 ― 으로 분할되는 직교 주파수 분할 다중화 통신 시스템에서 채널 품질을 보고하도록 구성된 사용자 장비로서,상기 복수의 자원 블럭 그룹 중 적어도 하나의 자원 블럭 그룹과 연관된 하나 이상의 채널 품질 파라미터를 측정하고, 상기 복수의 자원 블럭 그룹 중, 하나 이상이면서 전부는 아닌 자원 블럭 그룹을 선택하고, 상기 측정에 기초하여 상기 선택된 하나 이상의 자원 블럭 그룹에 대해 채널 품질 정보 및 프리코딩 메트릭을 결정하고, 상기 선택된 하나 이상의 자원 블럭 그룹에 대해서만, 상기 선택된 하나 이상의 자원 블럭 그룹에 대해 결정된 상기 채널 품질 정보 및 프리코딩 메트릭을 동일한 채널을 통해 무선 액세스 네트워크에 보고하도록 구성된 프로세서를 포함하는 사용자 장비.
- 삭제
- 제9항에 있어서,상기 프로세서는, 상기 측정된 하나 이상의 채널 품질 파라미터에 기초하여, 상기 하나 이상의 자원 블럭 그룹을 선택하도록 구성된 사용자 장비.
- 제9항에 있어서,상기 채널 품질 정보는 CQI 정보를 포함하며, 상기 프리코딩 메트릭은 프리코딩 매트릭스 표시자인 사용자 장비.
- 삭제
- 제9항에 있어서,상기 프로세서는, 조인트 채널 품질 정보/프리코딩 메트릭 보고(report)를 무선 액세스 네트워크에 전송함으로써, 상기 선택된 하나 이상의 자원 블럭 그룹과 연관된 채널 품질 정보 및 프리코딩 메트릭을 상기 무선 액세스 네트워크에 보고하도록 구성된 사용자 장비.
- 제9항에 있어서,상기 프로세서는, 상기 하나 이상의 자원 블럭 그룹을 선택하는 것이, 비트맵 피드백 스킴, Top-M 피드백 스킴, 및 하이브리드 피드백 스킴 중 하나 이상에 기초하여 결정되도록 구성되는 사용자 장비.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US89585107P | 2007-03-20 | 2007-03-20 | |
US60/895,851 | 2007-03-20 | ||
US12/045,094 US8831116B2 (en) | 2007-03-20 | 2008-03-10 | Method and apparatus for providing channel quality and precoding metric feedback in an orthogonal frequency division multiplexing communication system |
US12/045,094 | 2008-03-10 | ||
PCT/US2008/056946 WO2008115772A1 (en) | 2007-03-20 | 2008-03-14 | Method and apparatus for providing channel quality and precoding metric feedback in an orthogonal frequency division multiplexing communication system |
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KR20090110882A KR20090110882A (ko) | 2009-10-22 |
KR101084427B1 true KR101084427B1 (ko) | 2011-11-21 |
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KR1020097019425A KR101084427B1 (ko) | 2007-03-20 | 2008-03-14 | 직교 주파수 분할 다중화 통신 시스템에서 채널 품질 및 프리코딩 메트릭 피드백을 제공하기 위한 방법 및 장치 |
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US (1) | US8831116B2 (ko) |
EP (1) | EP2137858B1 (ko) |
JP (1) | JP5130592B2 (ko) |
KR (1) | KR101084427B1 (ko) |
CN (1) | CN101641894B (ko) |
WO (1) | WO2008115772A1 (ko) |
Families Citing this family (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8363744B2 (en) * | 2001-06-10 | 2013-01-29 | Aloft Media, Llc | Method and system for robust, secure, and high-efficiency voice and packet transmission over ad-hoc, mesh, and MIMO communication networks |
US6999430B2 (en) * | 2000-11-30 | 2006-02-14 | Qualcomm Incorporated | Method and apparatus for transmitting data traffic on a wireless communication channel |
EP2339854A3 (en) | 2001-11-30 | 2013-11-13 | NTT DoCoMo, Inc. | Moving picture encoding device, moving picture decoding device, moving picture encoding method, moving picture decoding method, program, and computer readable recording medium storing program |
US8594207B2 (en) * | 2005-10-31 | 2013-11-26 | Motorola Mobility Llc | Method and apparatus for providing channel quality feedback in an orthogonal frequency division multiplexing communication system |
JP4889532B2 (ja) * | 2007-03-20 | 2012-03-07 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信システムにおける基地局装置及び方法 |
US8982969B2 (en) * | 2007-05-03 | 2015-03-17 | Broadcom Corporation | Method and system for CQI/PMI feedback for precoded MIMO systems utilizing differential codebooks |
US20090257356A1 (en) * | 2008-04-11 | 2009-10-15 | Nokia Siemens Networks Oy | Enhanced channel quality indication reports |
EP2117155B1 (en) | 2008-05-06 | 2014-03-19 | Godo Kaisha IP Bridge 1 | Control channel signalling for triggering the independent transmission of a channel quality indicator |
TWI414157B (zh) * | 2008-07-02 | 2013-11-01 | Interdigital Patent Holdings | 多輸入多輸出通信的秩及預編碼矩陣測量及報告方法及裝置 |
KR101056614B1 (ko) | 2008-07-30 | 2011-08-11 | 엘지전자 주식회사 | 다중안테나 시스템에서 데이터 전송방법 |
KR20100013251A (ko) * | 2008-07-30 | 2010-02-09 | 엘지전자 주식회사 | 다중안테나 시스템에서 데이터 전송방법 |
US8520537B2 (en) | 2008-08-08 | 2013-08-27 | Futurewei Technologies, Inc. | System and method for synchronized and coordinated beam switching and scheduling in a wireless communications system |
EP2204903B1 (en) * | 2008-12-31 | 2012-07-18 | Ubidyne Inc. | A radio station and active antenna array |
US8462881B2 (en) * | 2008-12-31 | 2013-06-11 | Ubidyne, Inc. | Method for digitally predistorting a payload signal and radio station incorporating the method |
US9520933B2 (en) | 2009-01-12 | 2016-12-13 | Qualcomm Incorporated | Method and apparatus for enabling multiple transmission modes based on multiple search spaces |
US9071310B2 (en) * | 2009-01-12 | 2015-06-30 | Qualcomm Incorporated | Method and apparatus for enabling multiple transmission modes in a wireless communication system |
KR101753391B1 (ko) | 2009-03-30 | 2017-07-04 | 엘지전자 주식회사 | 무선 통신 시스템에서 신호 전송 방법 및 장치 |
US8396416B2 (en) * | 2009-04-01 | 2013-03-12 | Ubidyne, Inc. | Radio system and a method for relaying radio signals |
US8243851B2 (en) * | 2009-04-01 | 2012-08-14 | Ubidyne, Inc. | Radio system and a method for relaying radio signals |
US9397396B2 (en) * | 2009-04-01 | 2016-07-19 | Kathrein-Werke Kg | Radio system and a method for relaying packetized radio signals |
EP2425567A1 (en) | 2009-04-27 | 2012-03-07 | Nokia Siemens Networks Oy | Parameter feedback in a wireless communication system |
CN102484509B (zh) * | 2009-04-28 | 2014-11-05 | 华为技术有限公司 | 无线通信系统中协调电子设备的系统和方法 |
EP2472757A4 (en) | 2009-08-24 | 2016-09-28 | Lenovo Innovations Ltd Hong Kong | COMMUNICATION TERMINAL |
US8731005B2 (en) * | 2009-10-12 | 2014-05-20 | Kathrein-Werke Kg | Absolute timing and Tx power calibration of the Tx path in a distributed system |
WO2011056016A2 (en) | 2009-11-06 | 2011-05-12 | Lg Electronics Inc. | Method of resource block (rb) bundling |
CN102064908B (zh) * | 2009-11-18 | 2014-02-19 | 中兴通讯股份有限公司南京分公司 | 一种分类反馈全带宽上的子带信道质量信息的方法及终端 |
KR20110068854A (ko) * | 2009-12-15 | 2011-06-22 | 주식회사 팬택 | 무선통신 시스템에서의 자원 구성 방법과 구성된 자원에서의 데이터 송수신 방법 및 이를 위한 장치 |
CN102687456B (zh) * | 2010-01-07 | 2015-04-15 | 马维尔国际贸易有限公司 | 专用参考信号(drs)预编码粒度信令的方法和装置 |
EP2534804B1 (en) | 2010-02-10 | 2018-10-17 | Telefonaktiebolaget LM Ericsson (publ) | Method and arrangement in a telecommunications system |
WO2011100857A1 (en) * | 2010-02-17 | 2011-08-25 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for improving demodulation performance using demodulation reference signals power boosting |
CN102244559A (zh) * | 2010-05-12 | 2011-11-16 | 华为技术有限公司 | 一种预编码信息的发送和接收方法及装置 |
US8774196B2 (en) | 2010-06-03 | 2014-07-08 | Kathrein-Werke Kg | Active antenna array and method for relaying radio signals with synchronous digital data interface |
US9148204B2 (en) * | 2010-06-21 | 2015-09-29 | Qualcomm Incorporated | Physical resource block (PRB) bundling for open loop beamforming |
US9014025B2 (en) * | 2010-10-04 | 2015-04-21 | Futurewei Technologies, Inc. | System and method for coordinating different types of base stations in a heterogeneous communications system |
US8687727B2 (en) | 2010-11-05 | 2014-04-01 | Intel Corporation | Coordinated multi-point transmission using interference feedback |
WO2012142741A1 (en) * | 2011-04-18 | 2012-10-26 | Huawei Technologies Co., Ltd. | Method for arranging transmissions on a downlink carrier |
CN103828256A (zh) * | 2011-09-26 | 2014-05-28 | Lg电子株式会社 | 在无线通信系统中传送上行链路控制信号的方法和设备 |
US8565181B2 (en) | 2012-02-06 | 2013-10-22 | Neocific, Inc. | Methods and apparatus for multi-carrier communications with efficient control signaling |
KR102091855B1 (ko) * | 2013-03-14 | 2020-03-20 | 삼성전자주식회사 | 다수 톤 주파수 직각 진폭 변조를 사용하는 무선 통신 시스템에서 심볼 매핑 방법 및 장치 |
CN105850210A (zh) * | 2014-01-28 | 2016-08-10 | 富士通株式会社 | 波束选择方法、装置和通信系统 |
US9872242B2 (en) * | 2014-01-31 | 2018-01-16 | Qualcomm Incorporated | Joint transmission of CSI-RS for channel state feedback and transmission point selection |
US10470193B2 (en) * | 2014-05-28 | 2019-11-05 | Nokia Solutions And Networks Oy | Method, apparatus and system |
CN106302269B (zh) * | 2015-06-04 | 2020-06-23 | 电信科学技术研究院 | 一种信道状态信息的反馈及其控制方法及装置 |
EP4012945A1 (en) | 2015-07-03 | 2022-06-15 | Telefonaktiebolaget LM Ericsson (publ) | A network node, a wireless device and respective method performed thereby for communicating therebetween |
US10021685B2 (en) * | 2015-12-28 | 2018-07-10 | Qualcomm Incorporated | Techniques for allocating resources in low latency wireless communications |
US10143002B2 (en) * | 2016-01-12 | 2018-11-27 | Cisco Technology, Inc. | System and method to facilitate centralized radio resource management in a split radio access network environment |
CN108882266A (zh) * | 2017-05-12 | 2018-11-23 | 维沃移动通信有限公司 | 无线资源管理rrm测量方法、网络侧设备及终端 |
WO2019041240A1 (zh) * | 2017-08-31 | 2019-03-07 | 南通朗恒通信技术有限公司 | 一种被用于无线通信的用户、基站中的方法和装置 |
KR101954433B1 (ko) * | 2018-01-11 | 2019-03-05 | 엘지전자 주식회사 | 무선 통신 시스템에서 단말의 하향링크 신호 수신 방법 및 상기 방법을 이용하는 단말 |
US10772024B2 (en) | 2018-01-12 | 2020-09-08 | At&T Intellectual Property I, L.P. | Adaptive multiple antenna transmission scheme for uplink data transmission in wireless communication systems |
WO2020031210A1 (en) * | 2018-08-08 | 2020-02-13 | Indian Institute Of Technology Hyderabad | Method and system for scheduling a pool of resources to a plurality of user equipment's |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006093468A1 (en) * | 2005-03-04 | 2006-09-08 | Matsushita Electric Industrial Co., Ltd. | Transmit power allocation in wireless communication system |
WO2006107835A1 (en) * | 2005-04-01 | 2006-10-12 | Qualcomm Incorporated | Systems and methods for control channel signaling |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3848421B2 (ja) * | 1997-01-31 | 2006-11-22 | 秀男 村上 | 離散時間信号に対する多重化装置および多重化システムと、離散時間信号に対する多重化方法 |
US6359923B1 (en) * | 1997-12-18 | 2002-03-19 | At&T Wireless Services, Inc. | Highly bandwidth efficient communications |
US6215827B1 (en) * | 1997-08-25 | 2001-04-10 | Lucent Technologies, Inc. | System and method for measuring channel quality information in a communication system |
US6091777A (en) * | 1997-09-18 | 2000-07-18 | Cubic Video Technologies, Inc. | Continuously adaptive digital video compression system and method for a web streamer |
US6043771A (en) * | 1998-12-21 | 2000-03-28 | Trw Inc. | Compact, sensitive, low power device for broadband radar detection |
JP3875086B2 (ja) | 2001-11-30 | 2007-01-31 | ソフトバンクテレコム株式会社 | 直交周波数分割多重システムおよび送受信装置 |
JP3751265B2 (ja) * | 2002-06-20 | 2006-03-01 | 松下電器産業株式会社 | 無線通信システムおよびスケジューリング方法 |
EP2608420B1 (en) | 2003-01-23 | 2016-06-22 | Qualcomm Incorporated | Methods and apparatus of providing transmit diversity in a multiple access wireless communication system |
US6927728B2 (en) | 2003-03-13 | 2005-08-09 | Motorola, Inc. | Method and apparatus for multi-antenna transmission |
US7640373B2 (en) * | 2003-04-25 | 2009-12-29 | Motorola, Inc. | Method and apparatus for channel quality feedback within a communication system |
KR20050000709A (ko) * | 2003-06-24 | 2005-01-06 | 삼성전자주식회사 | 다중 접속 방식을 사용하는 통신 시스템의 데이터 송수신장치 및 방법 |
KR100640461B1 (ko) * | 2003-07-30 | 2006-10-30 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식을 사용하는 이동 통신시스템에서 서브 채널 할당 장치 및 방법 |
KR100566274B1 (ko) * | 2003-11-20 | 2006-03-30 | 삼성전자주식회사 | 직교주파수분할다중 시스템에서 부반송파 할당 장치 및방법 |
KR100640516B1 (ko) * | 2004-02-27 | 2006-10-30 | 삼성전자주식회사 | 직교주파수분할다중화 통신 시스템에서 채널품질 정보의전송방법 및 장치 |
KR100620914B1 (ko) * | 2004-04-07 | 2006-09-13 | 삼성전자주식회사 | 광대역 무선통신시스템에서 에이엠씨 모드와 다이버시티 모드를 스위칭하기 위한 장치 및 방법 |
US7570696B2 (en) * | 2004-06-25 | 2009-08-04 | Intel Corporation | Multiple input multiple output multicarrier communication system and methods with quantized beamforming feedback |
JP2008510386A (ja) | 2004-08-12 | 2008-04-03 | インターデイジタル テクノロジー コーポレーション | 直交周波数分割多重無線通信システムにおける空間周波数ブロックコーディングを実行する方法および装置 |
EP1816666B1 (en) * | 2004-10-29 | 2016-02-03 | Fujitsu Ltd. | Communication device by multicarrier transmission method and communication system |
US8130855B2 (en) | 2004-11-12 | 2012-03-06 | Interdigital Technology Corporation | Method and apparatus for combining space-frequency block coding, spatial multiplexing and beamforming in a MIMO-OFDM system |
US8571132B2 (en) * | 2004-12-22 | 2013-10-29 | Qualcomm Incorporated | Constrained hopping in wireless communication systems |
US20060203845A1 (en) * | 2005-03-09 | 2006-09-14 | Pantelis Monogioudis | High-rate wireless communication mehod for packet data |
US9136974B2 (en) | 2005-08-30 | 2015-09-15 | Qualcomm Incorporated | Precoding and SDMA support |
US7729432B2 (en) * | 2005-10-28 | 2010-06-01 | Samsung Electronics Co., Ltd. | System and method for enhancing the performance of wireless communication systems |
US8054894B2 (en) * | 2005-10-31 | 2011-11-08 | Motorola Mobility, Inc. | Method and apparatus for providing channel quality feedback in an orthogonal frequency division multiplexing communication system |
US10044532B2 (en) * | 2006-03-20 | 2018-08-07 | Texas Instruments Incorporated | Pre-coder selection based on resource block grouping |
US8014455B2 (en) * | 2006-03-27 | 2011-09-06 | Qualcomm Incorporated | Feedback of differentially encoded channel state information for multiple-input multiple-output (MIMO) and subband scheduling in a wireless communication system |
US20150030058A9 (en) * | 2006-05-17 | 2015-01-29 | Texas Instruments Inc. | Cqi feedback for mimo deployments |
KR101249359B1 (ko) | 2006-08-18 | 2013-04-01 | 삼성전자주식회사 | 다중 입력 다중 출력을 지원하는 직교 주파수 분할 다중화 시스템에서 채널 품질 정보를 송수신하는 방법 및 장치 |
US20080219370A1 (en) * | 2007-03-06 | 2008-09-11 | Texas Instruments Incorporated | User equipment feedback structures for mimo ofdma |
-
2008
- 2008-03-10 US US12/045,094 patent/US8831116B2/en active Active
- 2008-03-14 WO PCT/US2008/056946 patent/WO2008115772A1/en active Application Filing
- 2008-03-14 KR KR1020097019425A patent/KR101084427B1/ko active IP Right Grant
- 2008-03-14 CN CN200880009016.1A patent/CN101641894B/zh active Active
- 2008-03-14 JP JP2009551900A patent/JP5130592B2/ja active Active
- 2008-03-14 EP EP08743877.6A patent/EP2137858B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006093468A1 (en) * | 2005-03-04 | 2006-09-08 | Matsushita Electric Industrial Co., Ltd. | Transmit power allocation in wireless communication system |
WO2006107835A1 (en) * | 2005-04-01 | 2006-10-12 | Qualcomm Incorporated | Systems and methods for control channel signaling |
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