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AR066220A1 - Metodo y aparato para una eficaz validacion de informacion precodificada para comunicaciones mimo - Google Patents

Metodo y aparato para una eficaz validacion de informacion precodificada para comunicaciones mimo

Info

Publication number
AR066220A1
AR066220A1 ARP080101655A ARP080101655A AR066220A1 AR 066220 A1 AR066220 A1 AR 066220A1 AR P080101655 A ARP080101655 A AR P080101655A AR P080101655 A ARP080101655 A AR P080101655A AR 066220 A1 AR066220 A1 AR 066220A1
Authority
AR
Argentina
Prior art keywords
pmi
enode
wtru
sends
indicator
Prior art date
Application number
ARP080101655A
Other languages
English (en)
Inventor
Kyle Jung-Lin Pan
Original Assignee
Interdigital Tech Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of AR066220A1 publication Critical patent/AR066220A1/es

Links

Classifications

    • 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
    • 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
    • H04B7/0452—Multi-user MIMO systems
    • 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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • 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
    • H04B7/0652—Feedback error handling
    • 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
    • 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
    • H04B7/0665—Feed forward of transmit weights to the receiver
    • 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
    • H04L1/0025—Transmission of mode-switching 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • 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
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • 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
    • 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
    • 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
    • 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
    • H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
    • H04L2025/03802—Signalling on the reverse channel

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

Se proporciona un método y un aparato para una verificacion eficaz de la matriz de precodificacion en un sistema de comunicaciones inalámbricas de multiples entradas multiples salidas MIMO. Una unidad inalámbrica de transmision/recepcion WTRU envíaun índice de matriz de precodificacion PMI a un eNodo B. El eNodo B envía un mensaje de verificacion que incluye un indicador de PMI que indica si el PMI de la WTRU y el PMI del eNodo B son idénticos o no. Si el PMI de la WTRU y del eNodo B sonidénticos, el eNodo B envía un indicador de PMI, de lo contrario el eNodo B envía a la WTRU un indicador de PMI y el PMI del eNodo B. Se pueden enviar una pluralidad de PMIs en forma simultánea y los PMIs se pueden dividir en una pluralidad degrupos. El indicador de PMI se puede anexar o insertar en una senalizacion de control. Los mensajes de validacion de PMI se pueden senalizar a la WTRU mediante senalizacion de control o uso de una senal de referencia dedicada.
ARP080101655A 2007-04-20 2008-04-21 Metodo y aparato para una eficaz validacion de informacion precodificada para comunicaciones mimo AR066220A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US91314507P 2007-04-20 2007-04-20

Publications (1)

Publication Number Publication Date
AR066220A1 true AR066220A1 (es) 2009-08-05

Family

ID=39708289

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP080101655A AR066220A1 (es) 2007-04-20 2008-04-21 Metodo y aparato para una eficaz validacion de informacion precodificada para comunicaciones mimo

Country Status (18)

Country Link
US (2) US9716604B2 (es)
EP (4) EP2797250B1 (es)
JP (4) JP2010525684A (es)
KR (5) KR101381329B1 (es)
CN (2) CN105634573B (es)
AR (1) AR066220A1 (es)
AU (1) AU2008242610A1 (es)
BR (1) BRPI0809746B1 (es)
CA (1) CA2684874C (es)
ES (1) ES2563427T3 (es)
HK (1) HK1253948A1 (es)
IL (1) IL201649A (es)
MX (1) MX2009011299A (es)
MY (1) MY159052A (es)
RU (1) RU2438251C2 (es)
SG (1) SG10201503104PA (es)
TW (3) TWI455541B (es)
WO (1) WO2008131352A1 (es)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101382894B1 (ko) * 2007-03-12 2014-04-08 엘지전자 주식회사 다중 안테나 시스템에서의 제어정보 전송방법
JP2010525684A (ja) * 2007-04-20 2010-07-22 インターデイジタル テクノロジー コーポレーション Ｍｉｍｏ通信の効率的プレコーディング情報妥当性検査の方法および装置
KR101347334B1 (ko) * 2007-06-14 2014-01-06 삼성전자주식회사 다수의 이동국에 대한 다중 입출력을 지원하는 이동통신시스템에서 자동재송요구를 지원하는 응답문자 전송방법
JP4729537B2 (ja) 2007-06-19 2011-07-20 株式会社エヌ・ティ・ティ・ドコモ 基地局装置および送信方法
HUE046193T2 (hu) 2007-06-27 2020-02-28 Unwired Planet International Ltd Eljárás és elrendezések telekommunikációs rendszerben, amely támogatja MU-MIMO-t és SU-MIMO-t
KR101397341B1 (ko) * 2007-08-21 2014-06-19 엘지전자 주식회사 다중안테나 시스템에서의 데이터 전송 방법
TW200917699A (en) * 2007-10-08 2009-04-16 Interdigital Patent Holdings Method and apparatus for signaling interference information for multi-user MIMO
WO2009081580A1 (ja) * 2007-12-25 2009-07-02 Panasonic Corporation 無線通信基地局装置、無線通信移動局装置および伝搬路推定方法
KR100991794B1 (ko) 2007-12-31 2010-11-03 엘지전자 주식회사 셀간 간섭 감소 방법
JP4652420B2 (ja) * 2008-01-08 2011-03-16 株式会社エヌ・ティ・ティ・ドコモ ユーザ装置、送信方法、および移動通信システム
CN101499986B (zh) * 2008-01-31 2012-05-09 富士通株式会社 基站及基站中使用的调度方法
EP2549816A1 (en) 2008-03-19 2013-01-23 NEC Corporation Wireless communication system, wireless communication setting method, base station, mobile station, and program
US8199836B2 (en) * 2008-05-02 2012-06-12 Nec Laboratories America, Inc. Multi-resolution precoding codebook
KR101561704B1 (ko) 2008-06-10 2015-10-20 한국전자통신연구원 다중 셀 협력 통신 시스템 및 단말 장치
WO2010143780A2 (ko) * 2009-06-10 2010-12-16 한국전자통신연구원 다중 셀 협력 통신 시스템 및 단말 장치
EP2141825A1 (en) * 2008-06-30 2010-01-06 Alcatel, Lucent Method of reducing intra-cell spatial interference in a mobile cellular network
EP2451086B1 (en) 2008-06-30 2018-02-28 Alcatel Lucent Method of assigning precoding vectors in a mobile cellular network
US8254318B2 (en) * 2008-07-11 2012-08-28 Alcatel Lucent Wireless communication system and method of joint beamforming wireless communication
EP2151941A1 (en) * 2008-08-05 2010-02-10 Nokia Siemens Networks OY Communication network element and method transmitting data
KR101549021B1 (ko) * 2008-08-20 2015-09-01 엘지전자 주식회사 상향링크 ｐａｐｒ을 줄이기 위한 프리코딩 방법 및 이를 위한 장치
US8204453B2 (en) 2008-08-20 2012-06-19 Intel Mobile Communications GmbH Method, apparatus and communication unit
KR101481589B1 (ko) * 2008-08-25 2015-01-12 엘지전자 주식회사 다중안테나를 갖는 무선 통신 시스템에서 피드백 정보 전송 방법, 데이터 전송 방법 및 데이터 전송 장치
WO2010061302A2 (en) * 2008-11-03 2010-06-03 Koninklijke Philips Electronics N.V. Antenna configuration for co-operative beamforming
US20100195748A1 (en) * 2009-02-02 2010-08-05 Samsung Electronics Co., Ltd. Method and system for reference signal pattern design in resource blocks
KR101587005B1 (ko) * 2009-03-11 2016-02-02 삼성전자주식회사 다중안테나시스템에서 간섭완화를 위한 제어정보를 전송하기 위한 방법 및 장치
KR101753391B1 (ko) 2009-03-30 2017-07-04 엘지전자 주식회사 무선 통신 시스템에서 신호 전송 방법 및 장치
US20110110455A1 (en) * 2009-04-23 2011-05-12 Qualcomm Incorporated Rank and precoding indication for mimo operation
US20110103510A1 (en) * 2009-04-23 2011-05-05 Qualcomm Incorporated Rank and precoding indication for mimo operation
US9236985B2 (en) * 2009-04-23 2016-01-12 Qualcomm Incorporated Method and apparatus for control and data multiplexing in a MIMO communication system
US20110105137A1 (en) * 2009-04-23 2011-05-05 Qualcomm Incorporated Rank and precoding indication for mimo operation
WO2010130097A1 (zh) * 2009-05-14 2010-11-18 华为技术有限公司 信息处理方法、设备和系统
CN101902305B (zh) * 2009-05-25 2013-10-30 富士通株式会社 通信装置、通信方法和基站
US8848603B2 (en) * 2009-06-22 2014-09-30 Qualcomm Incorporated Precoding control channels in wireless networks
BRPI1013496B1 (pt) * 2009-07-03 2021-03-09 Panasonic Intellectual Property Corporation Of America dispositivo de comunicação sem fio e método de comunicação sem fio em um dispositivo de comunicação sem fio
US9172561B2 (en) * 2009-07-29 2015-10-27 Qualcomm Incorporated Adaptive transmissions in coordinated multiple point communications
CN102035585B (zh) * 2009-09-28 2015-03-11 华为技术有限公司 协作中继系统中预编码方法、通信装置和中继装置
US8369439B2 (en) * 2009-09-30 2013-02-05 Alcatel Lucent Transmission of precoding codebook over an air interface
JP5149257B2 (ja) * 2009-10-02 2013-02-20 シャープ株式会社 無線通信システム、通信装置および無線通信方法
CN102640431A (zh) * 2009-10-30 2012-08-15 诺基亚公司 支持有效的秩重配的信道反馈
US8964657B2 (en) 2009-11-02 2015-02-24 Qualcomm Incorporated Apparatus and method for joint encoding of user specific reference signal information in wireless communication
US20120270535A1 (en) * 2009-12-17 2012-10-25 Texas Instruments Incorporated Implicit CSI Feedback for DL Multiuser MIMO Transmission
US9253784B2 (en) 2010-01-11 2016-02-02 Samsung Electronics Co., Ltd. Method and system for enabling resource block bundling in LTE-A systems
JP2011166536A (ja) * 2010-02-10 2011-08-25 Sharp Corp 無線送信装置、基地局装置、無線送信方法、基地局装置の制御プログラムおよび集積回路
KR101793259B1 (ko) 2010-03-12 2017-11-02 한국전자통신연구원 무선 통신 시스템에서 다중 사용자에게 데이터 프레임을 전송하는 방법
US8948800B2 (en) * 2010-03-30 2015-02-03 Qualcomm Incorporated Systems, apparatuses, and methods to facilitate coordinated scheduling in wireless communication systems
EP3544200B1 (en) * 2010-04-08 2023-09-06 LG Electronics Inc. Signal transmsission method and apparatus using codebook in wireless communication system supporting multiple antennas
CN104935368B (zh) * 2010-04-12 2018-07-24 Lg电子株式会社 在支持多天线的无线通信系统中的有效反馈的方法和设备
US20110255483A1 (en) * 2010-04-16 2011-10-20 Research In Motion Limited Signaling of Precoding Granularity for LTE and LTE-A
CN102939775B (zh) * 2010-05-07 2015-07-08 华为技术有限公司 无线通信系统中执行量化的反馈率调整的方法及用户终端
CN101834701B (zh) * 2010-05-12 2015-10-21 中兴通讯股份有限公司 一种实现多点协作传输的方法、系统和移动终端
US9148204B2 (en) * 2010-06-21 2015-09-29 Qualcomm Incorporated Physical resource block (PRB) bundling for open loop beamforming
CN102948087B (zh) * 2010-06-23 2017-04-19 瑞典爱立信有限公司 异构网络部署中的参考信号干扰管理
CN102447524B (zh) * 2010-10-11 2015-04-15 电信科学技术研究院 信息指示的方法及设备
CN101986588B (zh) * 2010-11-09 2016-03-30 中兴通讯股份有限公司 信道状态信息反馈方法及终端
CN102025450B (zh) * 2010-11-29 2015-06-03 中兴通讯股份有限公司 一种进行信道信息编码反馈的方法及移动终端
CN102623012B (zh) 2011-01-26 2014-08-20 华为技术有限公司 矢量联合编解码方法及编解码器
JP4800447B2 (ja) * 2011-03-01 2011-10-26 株式会社エヌ・ティ・ティ・ドコモ 基地局装置、送信方法及び移動通信システム
WO2012141384A1 (ko) 2011-04-14 2012-10-18 엘지전자 주식회사 다중 안테나 무선 통신 시스템에서 단말의 간섭 억제 방법 및 이를 위한 장치
US20130328722A1 (en) * 2012-03-06 2013-12-12 Niklas Wernersson Node and method for establishing beamforming for downlink communications
US8842760B2 (en) * 2012-07-17 2014-09-23 Broadcom Corporation Enhanced multi user MIMO scheduling
US9008222B2 (en) * 2012-08-14 2015-04-14 Samsung Electronics Co., Ltd. Multi-user and single user MIMO for communication systems using hybrid beam forming
EP2953395B1 (en) 2013-02-28 2021-11-24 Huawei Technologies Co., Ltd. Radio resource configuration method and device
WO2014196823A1 (ko) 2013-06-05 2014-12-11 엘지전자 주식회사 무선 통신 시스템에서 채널상태정보 전송 방법 및 장치
US9847818B2 (en) * 2013-06-07 2017-12-19 Nec Corporation Channel state information (CSI) feedback and subsampling
WO2015042171A1 (en) * 2013-09-18 2015-03-26 Jolata, Inc. Highly probable identification of related messages using sparse hash function sets
CN105450343B (zh) * 2014-08-30 2018-11-06 华为技术有限公司 一种预编码的方法、装置及系统
WO2016080742A1 (en) * 2014-11-17 2016-05-26 Samsung Electronics Co., Ltd. Csi feedback for mimo wireless communication systems with polarized active antenna array
US10084579B2 (en) 2014-11-17 2018-09-25 Samsung Electronics Co., Ltd. CSI feedback for MIMO wireless communication systems with polarized active antenna array
US9647736B1 (en) * 2015-03-05 2017-05-09 Quantenna Communications, Inc. Compressed training for massive MU-MIMO in a wireless local area network
WO2016201647A1 (en) * 2015-06-17 2016-12-22 Intel Corporation Method for determining a precoding matrix and precoding module
US10374837B2 (en) * 2015-07-07 2019-08-06 Lg Electronics Inc. Method for measuring effective channel for must transmission in wireless communication system and apparatus therefor
CN105790854B (zh) * 2016-03-01 2018-11-20 济南中维世纪科技有限公司 一种基于声波的短距离数据传输方法及装置
US10601478B2 (en) * 2016-11-02 2020-03-24 Telefonaktiebolaget Lm Ericsson (Publ) Mechanism for switching between uplink and downlink training in hybrid beamforming systems
CN108631844B (zh) * 2017-03-24 2021-05-18 电信科学技术研究院 一种获取信道状态信息的方法、终端和网络侧设备
CN108811101B (zh) * 2017-05-04 2020-10-30 电信科学技术研究院 一种预编码矩阵指示方法、终端和网络侧设备
CN109361498B (zh) * 2017-08-12 2019-09-20 华为技术有限公司 预编码矩阵子集限制的方法和传输装置
US11569887B2 (en) * 2019-10-18 2023-01-31 Qualcomm Incorporated Precoding matrix identifier confirmation for post processing
US12113621B2 (en) * 2020-12-16 2024-10-08 Qualcomm Incorporated Signal reconstruction for dynamic analog-to-digital converters
EP4454151A1 (en) * 2021-12-22 2024-10-30 Qualcomm Incorporated Synthesized synchronization system block beams
US12355521B2 (en) * 2022-04-29 2025-07-08 Qualcomm Incorporated Precoder prediction for uplink transmission enhancement

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6785341B2 (en) 2001-05-11 2004-08-31 Qualcomm Incorporated Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information
US7116944B2 (en) * 2002-02-07 2006-10-03 Lucent Technologies Inc. Method and apparatus for feedback error detection in a wireless communications systems
US7499709B2 (en) * 2002-02-07 2009-03-03 Alcatel-Lucent Usa Inc. Method and apparatus for closed loop transmit diversity in a wireless communications system
US7020494B2 (en) 2002-02-07 2006-03-28 Sap Aktiengesellschaft Integrating contextual information into mobile enterprise applications
KR100526542B1 (ko) * 2003-05-15 2005-11-08 삼성전자주식회사 이동 통신 시스템에서 다중안테나를 사용하는송신다이버시티 방식을 사용하여 데이터를 송수신하는장치 및 방법
RU2325045C2 (ru) 2003-06-10 2008-05-20 Нокиа Корпорейшн Способ и устройство для переключения мобильной станции между автономной и планируемой передачами
US7773535B2 (en) * 2004-08-12 2010-08-10 Motorola, Inc. Method and apparatus for closed loop transmission
KR20060028989A (ko) * 2004-09-30 2006-04-04 엘지전자 주식회사 다중입출력 시스템에 적용되는 신호 처리 방법
KR20060038812A (ko) * 2004-11-01 2006-05-04 엘지전자 주식회사 다중입출력 시스템의 선행 코딩 행렬 정보 전송 방법 및이를 이용한 신호 전송 방법
KR100909539B1 (ko) * 2004-11-09 2009-07-27 삼성전자주식회사 다중 안테나를 사용하는 광대역 무선 접속 시스템에서 다양한 다중안테나 기술을 지원하기 위한 장치 및 방법
KR100744274B1 (ko) * 2005-01-11 2007-07-30 삼성전자주식회사 무선 통신 시스템에서 데이터 버스트 할당 지시 방법 및시스템
US9184870B2 (en) * 2005-04-01 2015-11-10 Qualcomm Incorporated Systems and methods for control channel signaling
US20070165738A1 (en) * 2005-10-27 2007-07-19 Barriac Gwendolyn D Method and apparatus for pre-coding for a mimo system
US7949318B2 (en) * 2007-02-05 2011-05-24 Nec Laboratories America, Inc. Multi-rank beamforming precoding apparatus and method
KR20070108304A (ko) * 2005-10-31 2007-11-09 삼성전자주식회사 다중 송수신 안테나 시스템에서의 채널 품질 정보 송수신방법 및 장치
EP2854302A1 (en) * 2006-03-17 2015-04-01 Apple Inc. Closed-loop mimo systems and methods
US8041362B2 (en) * 2006-03-20 2011-10-18 Intel Corporation Downlink resource allocation and mapping
US8914015B2 (en) * 2006-03-20 2014-12-16 Qualcomm Incorporated Grouping of users for MIMO transmission in a wireless communication system
US20070263746A1 (en) * 2006-05-12 2007-11-15 Nokia Corporation Feedback frame structure for subspace tracking precoding
US20150030058A9 (en) * 2006-05-17 2015-01-29 Texas Instruments Inc. Cqi feedback for mimo deployments
US7949064B2 (en) * 2006-08-14 2011-05-24 Texas Instruments Incorporated Codebook and pre-coder selection for closed-loop mimo
ES2553960T3 (es) * 2006-08-18 2015-12-15 Qualcomm Incorporated Retroalimentación de Indicación de Control de Precodificación (PCI) y de Indicación de Calidad de Canal (CQI) en un sistema de comunicación inalámbrica
WO2008031037A2 (en) 2006-09-07 2008-03-13 Texas Instruments Incorporated Antenna grouping for mimo systems
US7995642B2 (en) * 2007-02-05 2011-08-09 Samsung Electronics Co., Ltd. Precoding signaling in a MIMO wireless communication system
US7916621B2 (en) * 2007-02-05 2011-03-29 Samsung Electronics Co., Ltd. MIMO control signaling in a wireless communication system
US7809074B2 (en) * 2007-03-16 2010-10-05 Freescale Semiconductor, Inc. Generalized reference signaling scheme for multi-user, multiple input, multiple output (MU-MIMO) using arbitrarily precoded reference signals
KR101382760B1 (ko) * 2007-03-21 2014-04-08 엘지전자 주식회사 다중 안테나를 이용한 통신시스템에서 코드북을 이용한데이터 전송방법
CN101669299B (zh) * 2007-03-22 2014-11-12 马维尔国际贸易有限公司 多入多出系统的可变码本
US7965785B2 (en) * 2007-04-04 2011-06-21 Ntt Docomo, Inc. Uplink multiple-input-multiple-output (MIMO) and cooperative MIMO transmissions
JP2010525684A (ja) * 2007-04-20 2010-07-22 インターデイジタル テクノロジー コーポレーション Ｍｉｍｏ通信の効率的プレコーディング情報妥当性検査の方法および装置
US8259824B2 (en) * 2007-05-23 2012-09-04 Texas Instruments Incorporated Nested precoding codebook structures for MIMO systems
EP2163056A4 (en) * 2007-06-15 2011-12-14 Research In Motion Ltd SYSTEM AND METHOD FOR DELIVERING LARGE PACKAGES DURING A SEMIPERSISTENT MEETING
US8452296B2 (en) * 2007-06-18 2013-05-28 Motorola Mobility Llc Method and apparatus to facilitate use of default transmitter-receiver configurations
JP4729537B2 (ja) 2007-06-19 2011-07-20 株式会社エヌ・ティ・ティ・ドコモ 基地局装置および送信方法
DE202008018547U1 (de) * 2007-10-08 2015-08-05 Telefonaktiebolaget L M Ericsson (Publ) Anordnungen zum Signalisieren von Steuerinformation in einem Kommunikationssystem
WO2009061664A2 (en) * 2007-11-09 2009-05-14 Interdigital Patent Holdings, Inc. Method and apparatus for performing rank overriding in long term evolution networks
JP5433589B2 (ja) * 2008-02-28 2014-03-05 アップル インコーポレイテッド 無線通信された信号に適用される符号化を特定する情報を含むフィードバックデータ構造の通信
US8724684B2 (en) * 2008-03-24 2014-05-13 Texas Instruments Incorporated CQI feedback structure
US8767681B2 (en) * 2010-04-07 2014-07-01 Telefonaktiebolaget Lm Ericsson (Publ) Parameterized codebook subsets for use with precoding MIMO transmissions
US8842760B2 (en) * 2012-07-17 2014-09-23 Broadcom Corporation Enhanced multi user MIMO scheduling

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