AR059991A1 - Agrupacion de usuarios para la transmision de mimo en un sistema de comunicaciones inalambrico - Google Patents

Agrupacion de usuarios para la transmision de mimo en un sistema de comunicaciones inalambrico

Info

Publication number
AR059991A1
AR059991A1 ARP070101134A ARP070101134A AR059991A1 AR 059991 A1 AR059991 A1 AR 059991A1 AR P070101134 A ARP070101134 A AR P070101134A AR P070101134 A ARP070101134 A AR P070101134A AR 059991 A1 AR059991 A1 AR 059991A1
Authority
AR
Argentina
Prior art keywords
ues
group
mimo transmission
transmission
mimo
Prior art date
Application number
ARP070101134A
Other languages
English (en)
Inventor
Byoung-Hoon Kim
Durga Prasad Malladi
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of AR059991A1 publication Critical patent/AR059991A1/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
    • 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
    • H04B7/06—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
    • 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
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • 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
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • H04L1/0035—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter evaluation of received explicit signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • 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]
    • 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
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
    • H04L1/002—Algorithms with memory of the previous states, e.g. Markovian models
    • 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
    • H04L1/02—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

Landscapes

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

Abstract

Técnicas para soportar la transmision MIMO. Los equipos de usuarios (UEs) se clasifican en un primer grupo de UEs a ser programados individualmente y en un segundo grupo de UEs que pueden programarse conjuntamente. La clasificacion se puede basar en la cantidad de antenas de transmision y de recepcion, la carga del sector, los requerimientos de datos, las estadísticas a largo plazo del canal, la cantidad de UEs, etc. La informacion sobre el indicador de la calidad del canal (CQI) recibida procedente de los UEs se interpreta de diversas maneras en funcion de los grupos a los cuales los UEs pertenecen. Es posible seleccionar un unico EU por vez de entre un primer grupo, o se pueden seleccionar multiples UEs por vez del segundo grupo para la transmision de MIMO. Es posible enviar una transmision de MIMO a un UE individual en el primer grupo, o a multiples Ues en el segundo grupo, con velocidades seleccionadas sobre la base de la informacion sobre el CQI.
ARP070101134A 2006-03-20 2007-03-20 Agrupacion de usuarios para la transmision de mimo en un sistema de comunicaciones inalambrico AR059991A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78483706P 2006-03-20 2006-03-20
US78560106P 2006-03-24 2006-03-24

Publications (1)

Publication Number Publication Date
AR059991A1 true AR059991A1 (es) 2008-05-14

Family

ID=38255372

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP070101134A AR059991A1 (es) 2006-03-20 2007-03-20 Agrupacion de usuarios para la transmision de mimo en un sistema de comunicaciones inalambrico

Country Status (17)

Country Link
US (1) US8914015B2 (es)
EP (1) EP1997255B1 (es)
JP (2) JP2009530987A (es)
KR (1) KR101131753B1 (es)
CN (1) CN101405978B (es)
AR (1) AR059991A1 (es)
AU (1) AU2007226913A1 (es)
BR (1) BRPI0708952B8 (es)
CA (3) CA2643512C (es)
ES (1) ES2556129T3 (es)
IL (1) IL193629A0 (es)
MX (1) MX2008011987A (es)
NO (1) NO20084392L (es)
NZ (1) NZ570779A (es)
RU (1) RU2390948C1 (es)
TW (1) TWI360315B (es)
WO (1) WO2007109630A1 (es)

Families Citing this family (144)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100735373B1 (ko) * 2006-02-06 2007-07-04 삼성전자주식회사 통신 시스템에서 데이터 전송 방법 및 시스템
US20150030058A9 (en) * 2006-05-17 2015-01-29 Texas Instruments Inc. Cqi feedback for mimo deployments
PT2052468E (pt) * 2006-08-18 2015-12-07 Qualcomm Inc Retorno da indicação de controlo de pré-codificação (pci) e da indicação de qualidade de canal (cqi) num sistema de comunicação sem fios
US7839835B2 (en) * 2006-08-22 2010-11-23 Nec Laboratories America, Inc. Quantized precoding over a set of parallel channels
EP2097993A1 (en) * 2006-12-06 2009-09-09 Thomson Licensing Reduction of overhead in a multiple-input multiple-output (mimo) system
US8861356B2 (en) * 2007-03-13 2014-10-14 Ntt Docomo, Inc. Method and apparatus for prioritized information delivery with network coding over time-varying network topologies
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
US8798012B2 (en) * 2007-03-26 2014-08-05 Telefonaktiebolaget L M Ericsson (Publ) Preparation phase for switching between SU-MIMO and MU-MIMO
KR20090130206A (ko) 2007-04-20 2009-12-18 인터디지탈 테크날러지 코포레이션 Ｍｉｍｏ 통신에 대한 효과적인 프리코딩 정보 검증을 위한 방법 및 장치
US9319115B2 (en) * 2007-04-30 2016-04-19 Koninklijke Philips N.V. Method for providing precoding information in a multi-user MIMO system
TWI446740B (zh) * 2007-04-30 2014-07-21 Koninkl Philips Electronics Nv 在多重輸出入背景中的通信方法
US8325842B2 (en) * 2007-05-10 2012-12-04 Alcatel Lucent Method and apparatus for pre-processing data to be transmitted in multiple-input communication system
US7983710B2 (en) * 2007-05-31 2011-07-19 Alcatel-Lucent Usa Inc. Method of coordinated wireless downlink transmission
CN101743699B (zh) * 2007-06-27 2014-05-28 艾利森电话股份有限公司 Su-mimo和mu-mimo之间的模式切换的方法、基站和终端
EP2023502B1 (en) * 2007-08-10 2013-12-11 Alcatel Lucent A method of providing a broadcast of multicast service in a digital wireless communication network
US20090075686A1 (en) * 2007-09-19 2009-03-19 Gomadam Krishna S Method and apparatus for wideband transmission based on multi-user mimo and two-way training
WO2009045734A2 (en) * 2007-10-01 2009-04-09 Lucent Technologies, Inc. Multiplexing pucch information
PL2750304T3 (pl) * 2007-10-08 2018-08-31 Telefonaktiebolaget Lm Ericsson (Publ) Sposoby i układy do sygnalizowania informacji sterujących w systemie komunikacji
TW200917699A (en) * 2007-10-08 2009-04-16 Interdigital Patent Holdings Method and apparatus for signaling interference information for multi-user MIMO
WO2009048473A1 (en) 2007-10-11 2009-04-16 Qualcomm Incorporated Scheduled downloads: enabling background processes to receive broadcast data
EP2056548B1 (en) * 2007-10-30 2011-11-30 Alcatel Lucent Method and apparatus for signal precoding in communication systems
CN101472292B (zh) * 2007-12-28 2012-05-30 株式会社Ntt都科摩 多用户多输入多输出系统、基站、用户设备和cqi反馈方法
KR100991793B1 (ko) 2007-12-31 2010-11-03 엘지전자 주식회사 셀간 간섭 감소 방법
KR101369340B1 (ko) * 2008-01-25 2014-03-26 삼성전자주식회사 다중안테나 통신시스템에서 피드백 채널을 할당하는 방법및 장치
EP2239866B1 (en) * 2008-01-30 2016-09-21 Alcatel Lucent Long-time statistical csi assistant mu-mimo scheduling method, base station and user device
KR101381465B1 (ko) * 2008-02-20 2014-04-04 삼성전자주식회사 채널 상태 정보를 피드백하는 공간 다중 접속 방식의 통신시스템 및 이를 지원하는 방법
WO2009109913A2 (en) * 2008-03-03 2009-09-11 Runcom Technologies Ltd. Low complexity user selection for sdma
US8565329B2 (en) * 2008-06-03 2013-10-22 Ntt Docomo, Inc. Soft output M-algorithm receiver structures with generalized survivor selection criteria for MIMO systems
US20090323849A1 (en) * 2008-06-30 2009-12-31 Interdigital Patent Holdings, Inc. Method and apparatus for performing multiple-input multiple-output wireless communications
US8644288B2 (en) * 2008-07-31 2014-02-04 Motorola Mobility Llc Uplink spatial division multiple access (SDMA) user pairing and scheduling
US8451951B2 (en) * 2008-08-15 2013-05-28 Ntt Docomo, Inc. Channel classification and rate adaptation for SU-MIMO systems
US8705484B2 (en) * 2008-08-15 2014-04-22 Ntt Docomo, Inc. Method for varying transmit power patterns in a multi-cell environment
US8542640B2 (en) * 2008-08-28 2013-09-24 Ntt Docomo, Inc. Inter-cell approach to operating wireless beam-forming and user selection/scheduling in multi-cell environments based on limited signaling between patterns of subsets of cells
US8855221B2 (en) * 2008-09-15 2014-10-07 Ntt Docomo, Inc. Method and apparatus for iterative receiver structures for OFDM/MIMO systems with bit interleaved coded modulation
US8437437B2 (en) * 2008-09-19 2013-05-07 Nokia Corporation Apparatuses, methods and computer programs for conveying information
US8654715B2 (en) * 2008-10-24 2014-02-18 Qualcomm Incorporated Systems and methods providing mobile transmit diversity
US8654705B2 (en) * 2008-10-24 2014-02-18 Qualcomm Incorporated System and method for supporting multiple reverse link data streams
US20110207487A1 (en) * 2008-10-30 2011-08-25 Hongwei Yang Switching technology for cooperation types in multi-sector cooperative communication
KR101604871B1 (ko) * 2008-12-12 2016-03-18 한국전자통신연구원 다중 사용자 다중 입력 다중 출력 기법을 이용하는 통신 시스템
US8582678B2 (en) * 2008-12-12 2013-11-12 Electronics And Telecommunications Research Institute Communication system using multi-user multiple input multiple output (MU-MIMO) communication scheme
EP2440000B8 (en) * 2008-12-18 2016-01-06 Nec Corporation MU-MIMO OFDMA systems and methods for servicing overlapping co-scheduled users
KR101673497B1 (ko) 2009-01-05 2016-11-07 마벨 월드 트레이드 리미티드 Ｍｉｍｏ 통신 시스템을 위한 프리코딩 코드북들
US8385441B2 (en) 2009-01-06 2013-02-26 Marvell World Trade Ltd. Efficient MIMO transmission schemes
US8320479B2 (en) * 2009-02-25 2012-11-27 Alcatel Lucent Ranking and grouping of transmissions in communication system
US8238483B2 (en) 2009-02-27 2012-08-07 Marvell World Trade Ltd. Signaling of dedicated reference signal (DRS) precoding granularity
US8830918B2 (en) 2009-03-16 2014-09-09 Interdigital Patent Holdings, Inc. Method and apparatus for performing uplink transmit diversity
TWI538428B (zh) * 2009-03-17 2016-06-11 皇家飛利浦電子股份有限公司 在網路中通信的方法、副站台及主站台
TWI517620B (zh) 2009-03-17 2016-01-11 皇家飛利浦電子股份有限公司 在多輸入多輸出（ｍｉｍｏ）網路中通信的方法及裝置
CN102077639B (zh) * 2009-03-20 2013-04-24 华为技术有限公司 反馈和接收预编码控制指示信息的方法及通信设备
US8867495B2 (en) * 2009-03-20 2014-10-21 Qualcomm Incorporated Feedback mechanisms for beamforming operation
US8615049B2 (en) * 2009-03-25 2013-12-24 Alcatel Lucent Method and apparatus for controlling co-channel interference in a wireless communication system
KR101800294B1 (ko) * 2009-04-02 2017-12-20 삼성전자주식회사 다중 셀 통신 시스템에서 셀 가장자리 사용자의 에러를 최소화하기 위한 장치 및 방법
WO2010122432A1 (en) * 2009-04-21 2010-10-28 Marvell World Trade Ltd Multi-point opportunistic beamforming with selective beam attenuation
US20110103510A1 (en) * 2009-04-23 2011-05-05 Qualcomm Incorporated Rank and precoding indication for mimo operation
US20110105137A1 (en) * 2009-04-23 2011-05-05 Qualcomm Incorporated Rank and precoding indication for mimo operation
KR101624119B1 (ko) * 2009-04-27 2016-05-30 삼성전자주식회사 코드북 기반 다중 안테나 시스템에서 송수신 장치 및 방법
US9048977B2 (en) * 2009-05-05 2015-06-02 Ntt Docomo, Inc. Receiver terminal driven joint encoder and decoder mode adaptation for SU-MIMO systems
US8526351B2 (en) * 2009-06-05 2013-09-03 Broadcom Corporation Channel characterization and training within multiple user, multiple access, and/or MIMO wireless communications
US8582485B2 (en) * 2009-06-05 2013-11-12 Broadcom Corporation Scheduled clear to send (CTS) for multiple user, multiple access, and/or MIMO wireless communications
US8923143B2 (en) * 2009-06-29 2014-12-30 Qualcomm Incorporated Open loop channel reporting in a wireless communication system
US20110194504A1 (en) * 2009-08-12 2011-08-11 Qualcomm Incorporated Method and apparatus for supporting single-user multiple-input multiple-output (su-mimo) and multi-user mimo (mu-mimo)
US9137802B2 (en) * 2009-08-18 2015-09-15 Qualcomm Incorporated DL MU-MIMO operation in LTE-A
US8977309B2 (en) * 2009-09-21 2015-03-10 Kathrein-Werke Kg Antenna array, network planning system, communication network and method for relaying radio signals with independently configurable beam pattern shapes using a local knowledge
US9584199B2 (en) * 2009-09-21 2017-02-28 Kathrein-Werke Kg User group specific beam forming in a mobile network
CN102035619B (zh) * 2009-09-29 2016-05-25 电信科学技术研究院 信道质量信息反馈的方法、系统和设备
DE102009043439A1 (de) * 2009-09-29 2011-03-31 Rohde & Schwarz Gmbh & Co. Kg Vorrichtung und Verfahren zur Messung der Kanalqualitäts-Rückmeldungen von Mobilstationen
US8675794B1 (en) 2009-10-13 2014-03-18 Marvell International Ltd. Efficient estimation of feedback for modulation and coding scheme (MCS) selection
WO2011046353A2 (en) * 2009-10-13 2011-04-21 Pantech Co.,Ltd. Method for transmission of cell-specific information of base station in coordinated multi-point transmission/reception system
US8917796B1 (en) 2009-10-19 2014-12-23 Marvell International Ltd. Transmission-mode-aware rate matching in MIMO signal generation
US20110228730A1 (en) * 2009-10-30 2011-09-22 Qualcomm Incorporated Scheduling simultaneous transmissions in wireless network
WO2011055238A1 (en) 2009-11-09 2011-05-12 Marvell World Trade Ltd Asymmetrical feedback for coordinated transmission systems
KR101559295B1 (ko) 2009-12-04 2015-10-12 삼성전자주식회사 공간 분할 다중 사용자 다중 입력 다중 출력 방식을 이용하는 통신 시스템
US8761289B2 (en) * 2009-12-17 2014-06-24 Marvell World Trade Ltd. MIMO feedback schemes for cross-polarized antennas
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
US9125229B2 (en) 2010-01-11 2015-09-01 Koninklijke Philips N.V. Method for configuring a transmission mode in a wireless network
JP5258002B2 (ja) * 2010-02-10 2013-08-07 マーベル ワールド トレード リミテッド Ｍｉｍｏ通信システムにおける装置、移動通信端末、チップセット、およびその方法
KR101706943B1 (ko) * 2010-02-23 2017-02-15 엘지전자 주식회사 채널품질정보 전송방법 및 사용자기기와, 다중사용자 데이터 전송방법 및 기지국
KR101402567B1 (ko) * 2010-03-19 2014-05-30 후지쯔 가부시끼가이샤 멀티-셀 ｍｉｍｏ 송신을 위한 셀 선택
US8687741B1 (en) 2010-03-29 2014-04-01 Marvell International Ltd. Scoring hypotheses in LTE cell search
KR101060857B1 (ko) 2010-03-31 2011-08-31 (주)휴맥스 Ｍｉｍｏ 통신 시스템에서의 데이터 전송 방법 및 장치
KR101704391B1 (ko) 2010-04-20 2017-02-22 텔레콤 이탈리아 소시에떼 퍼 아찌오니 무선 통신들을 위한 방법 및 시스템, 대응하는 네트워크 및 컴퓨터 프로그램 제품
KR101036960B1 (ko) * 2010-04-26 2011-05-25 인하대학교 산학협력단 다중 사용자 ｍｉｍｏ 시스템에서의 데이터스트림 할당 방법 및 장치
KR20120007345A (ko) * 2010-07-14 2012-01-20 아주대학교산학협력단 통신 시스템에서의 신호 전송장치 및 방법
WO2012039659A1 (en) * 2010-09-23 2012-03-29 Telefonaktiebolaget L M Ericsson (Publ) Antenna device and method in a mimo system
JP2012100254A (ja) 2010-10-06 2012-05-24 Marvell World Trade Ltd Ｐｕｃｃｈフィードバックのためのコードブックサブサンプリング
US8615052B2 (en) * 2010-10-06 2013-12-24 Marvell World Trade Ltd. Enhanced channel feedback for multi-user MIMO
WO2012053948A1 (en) * 2010-10-19 2012-04-26 Telefonaktiebolaget L M Ericsson (Publ) Antenna device and method for precoding data in a multiple-input multiple-output system
US8457029B2 (en) * 2010-10-25 2013-06-04 Broadcom Corporation Transitioning from MIMO to SISO to save power
US8908600B2 (en) * 2010-10-26 2014-12-09 Qualcomm Incorporated Channel state information feedback frame format and feedback rules for very high throughput wireless systems
US9130631B2 (en) 2010-11-03 2015-09-08 Qualcomm Incorporated Beamforming feedback format
KR101698365B1 (ko) 2010-12-01 2017-01-20 삼성전자주식회사 그룹 아이디를 할당하는 액세스 포인트 및 그룹 아이디 할당 방법
US20120140842A1 (en) * 2010-12-06 2012-06-07 Qualcomm Incorporated Signaling to protect advanced receiver performance in wireless local area networks (lans)
US9287944B2 (en) * 2010-12-20 2016-03-15 Celeno Communications Ltd. System and method for allowing multiple stations in a network to use MU-MIMO transmit beamforming
US9048970B1 (en) 2011-01-14 2015-06-02 Marvell International Ltd. Feedback for cooperative multipoint transmission systems
TW201234793A (en) * 2011-02-11 2012-08-16 Interdigital Patent Holdings Method and apparatus for closed loop transmit diversity transmission initial access
US8861391B1 (en) 2011-03-02 2014-10-14 Marvell International Ltd. Channel feedback for TDM scheduling in heterogeneous networks having multiple cell classes
EP2688331B1 (en) 2011-03-18 2016-07-27 Fujitsu Limited Wireless communication system, mobile station, base station, and wireless communication method
WO2012131612A1 (en) 2011-03-31 2012-10-04 Marvell World Trade Ltd. Channel feedback for cooperative multipoint transmission
CN102752033B (zh) * 2011-04-22 2017-07-04 株式会社Ntt都科摩 移动通信系统中多用户信道质量的确定方法及其用户终端和基站
CN102752083B (zh) 2011-04-22 2017-12-12 株式会社Ntt都科摩 一种实现多点协作传输配置的方法
US8553669B2 (en) * 2011-05-09 2013-10-08 Cox Communications, Inc. Systems and methods for assigning customers to groups for the transmission of broadband data signals
US8730934B2 (en) * 2011-05-09 2014-05-20 Cox Communications, Inc. Systems and methods for assigning a customer device to a group of customer devices for the transmission of broadband data signals
US9369895B2 (en) 2011-06-07 2016-06-14 Snu R&Db Foundation Method and device for channel measurement in a wireless LAN system
US8743988B2 (en) 2011-07-29 2014-06-03 Telefonaktiebolaget Lm Ericsson (Publ) Transmission mode adaptation in a wireless network
WO2013068916A1 (en) 2011-11-07 2013-05-16 Marvell World Trade Ltd. Codebook sub-sampling for frequency-selective precoding feedback
US9020058B2 (en) 2011-11-07 2015-04-28 Marvell World Trade Ltd. Precoding feedback for cross-polarized antennas based on signal-component magnitude difference
US9031597B2 (en) 2011-11-10 2015-05-12 Marvell World Trade Ltd. Differential CQI encoding for cooperative multipoint feedback
US9220087B1 (en) 2011-12-08 2015-12-22 Marvell International Ltd. Dynamic point selection with combined PUCCH/PUSCH feedback
US8902842B1 (en) 2012-01-11 2014-12-02 Marvell International Ltd Control signaling and resource mapping for coordinated transmission
ES2523134T3 (es) * 2012-01-13 2014-11-21 Nec Europe Ltd. Método para hacer funcionar una red inalámbrica, una red inalámbrica y un dispositivo
KR102109655B1 (ko) * 2012-02-23 2020-05-12 한국전자통신연구원 대규모 안테나 시스템에서의 다중 입력 다중 출력 통신 방법
US9143951B2 (en) 2012-04-27 2015-09-22 Marvell World Trade Ltd. Method and system for coordinated multipoint (CoMP) communication between base-stations and mobile communication terminals
KR101971464B1 (ko) * 2012-06-29 2019-04-23 삼성전자주식회사 신호 간섭 여부에 따라 디투디 통신 모드를 선택하는 장치 및 방법
JP2014027608A (ja) * 2012-07-30 2014-02-06 Ntt Docomo Inc 基地局装置、ユーザ端末、通信システム及び通信制御方法
TWI478525B (zh) * 2013-01-23 2015-03-21 Academia Sinica 多使用者多天線系統之傳送速率動態調節機制
US9667330B2 (en) 2013-11-17 2017-05-30 RF DSP Inc. Massive MIMO multi-user beamforming and single channel full duplex for wireless networks
WO2015095844A1 (en) 2013-12-20 2015-06-25 Ping Liang Adaptive precoding in a mimo wireless communication system
US9692577B2 (en) 2013-12-20 2017-06-27 RF DSP Inc. Method for acquiring channel state information in FDD MIMO wireless networks
US10070378B2 (en) * 2014-02-07 2018-09-04 Fortinet, Inc. Steering inherently autonomous wireless devices to access points based on MIMO (multiple input/ multiple output) capabilities of network components
WO2015119316A1 (ko) * 2014-02-10 2015-08-13 한국과학기술원 Massive MIMO 하향링크를 위한 두 단계 빔포머 기반의 사용자 스케줄링 방법, 장치 및 기록매체
US9780860B1 (en) * 2014-10-31 2017-10-03 Sprint Spectrum L.P. Systems and methods for controlling a reference signal mode to facilitate beamforming
JP5937178B2 (ja) * 2014-11-17 2016-06-22 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ ブロードキャストデータを受信するための背景処理を可能とするスケジューリングされたダウンロード
US20160226647A1 (en) * 2015-01-30 2016-08-04 Nokia Solutions And Networks Oy Reference precoding vectors for multiple rank indications for channel quality indication (cqi) reporting in a wireless
ES2858302T3 (es) 2015-03-11 2021-09-30 Commscope Technologies Llc Red de acceso por radio distribuida con Fronthaul adaptativa
TWI572092B (zh) * 2015-06-23 2017-02-21 啟碁科技股份有限公司 無線通訊裝置與控制天線陣列的方法
WO2017003962A1 (en) * 2015-06-28 2017-01-05 Ping Liang Channel state information acquisition in a wireless communication system
US10064217B2 (en) * 2015-10-16 2018-08-28 Samsung Electronics Co., Ltd. Method and apparatus for enabling flexible numerology in multi-user MIMO system
TWI616112B (zh) * 2016-06-07 2018-02-21 和碩聯合科技股份有限公司 傳輸資料的方法、基地台和電腦程式產品
EP3301824B1 (en) * 2016-09-28 2020-06-17 Intel IP Corporation Communication network component and method for requesting channel information
US12016084B2 (en) 2018-01-04 2024-06-18 Commscope Technologies Llc Management of a split physical layer in a radio area network
US10470073B1 (en) 2018-12-06 2019-11-05 Sprint Spectrum L.P. Use of block error rate as basis to control configuration of MU-MIMO service
US10826576B1 (en) 2018-12-06 2020-11-03 Sprint Spectrum L.P. Use of RF stability as basis to control configuration of MU-MIMO service
US10602478B1 (en) 2018-12-06 2020-03-24 Sprint Spectrum L.P. Use of mobility as basis to control configuration of MU-MIMO service
US11140639B1 (en) 2018-12-06 2021-10-05 Sprint Spectrum L.P. Use of power class as basis to control configuration of MU-MIMO service
US10412691B1 (en) 2018-12-06 2019-09-10 Sprint Spectrum, L.P. Use of power headroom as basis to control configuration of MU-MIMO service
US10893572B2 (en) 2019-05-22 2021-01-12 Google Llc User-equipment-coordination set for disengaged mode
US10771128B1 (en) 2019-06-24 2020-09-08 Sprint Communcations Company L.P. Multi-User Multiple Input Multiple Output (MU-MIMO) user equipment (UE) grouping with geographic correlation factors
CN112567880A (zh) 2019-07-25 2021-03-26 谷歌有限责任公司 用户设备协调集重新分组
US11350439B2 (en) 2019-08-13 2022-05-31 Google Llc User-equipment-coordination-set control aggregation
US11638272B2 (en) 2019-09-19 2023-04-25 Google Llc User-equipment-coordination-set selective participation
CN113498076A (zh) 2020-03-20 2021-10-12 北京三星通信技术研究有限公司 基于o-ran的性能优化配置方法与设备
WO2022255758A1 (ko) * 2021-06-01 2022-12-08 삼성전자 주식회사 Mimo 무선 통신 시스템을 위한 스케줄링 방법 및 그 전자 장치
US12015960B1 (en) * 2021-09-02 2024-06-18 T-Mobile Innovations Llc System and method for redirection to optimal antenna arrays
US20230231600A1 (en) * 2022-01-19 2023-07-20 Samsung Electronics Co., Ltd. Systems, methods, and apparatus for determining precoding information for beamforming

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5732353A (en) 1995-04-07 1998-03-24 Ericsson Inc. Automatic control channel planning in adaptive channel allocation systems
US7047016B2 (en) 2001-05-16 2006-05-16 Qualcomm, Incorporated Method and apparatus for allocating uplink resources in a multiple-input multiple-output (MIMO) communication system
US7453801B2 (en) * 2001-11-08 2008-11-18 Qualcomm Incorporated Admission control and resource allocation in a communication system supporting application flows having quality of service requirements
US7551546B2 (en) * 2002-06-27 2009-06-23 Nortel Networks Limited Dual-mode shared OFDM methods/transmitters, receivers and systems
US8208364B2 (en) 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US7158804B2 (en) * 2002-11-27 2007-01-02 Lucent Technologies Inc. Uplink scheduling for wireless networks
US7508798B2 (en) * 2002-12-16 2009-03-24 Nortel Networks Limited Virtual mimo communication system
US20040228349A1 (en) * 2003-01-10 2004-11-18 Sophie Vrzic Semi-distributed scheduling scheme for the reverse link of wireless systems
KR100790092B1 (ko) * 2003-08-18 2007-12-31 삼성전자주식회사 다중 사용자 다중 입력 다중 출력 방식을 사용하는 무선통신 시스템에서 자원 스케쥴링 장치 및 방법
US8705659B2 (en) * 2003-11-06 2014-04-22 Apple Inc. Communication channel optimization systems and methods in multi-user communication systems
FI20031702A0 (fi) * 2003-11-21 2003-11-21 Nokia Corp Useiden kantoaaltojen allokointi usealle käyttäjälle viestintäjärjestelmässä
US8406235B2 (en) * 2003-11-26 2013-03-26 Qualcomm Incorporated Quality of service scheduler for a wireless network
KR101163225B1 (ko) 2003-12-11 2012-07-05 엘지전자 주식회사 다중 안테나 시스템의 제어신호 전송방법
EP1695456B1 (en) 2003-12-19 2009-11-11 Telefonaktiebolaget LM Ericsson (publ) Method and apparatus in a mimo based communication system
US20070047552A1 (en) * 2003-12-22 2007-03-01 David Astely Measurement method for spatial scheduling
US20050250544A1 (en) 2004-05-07 2005-11-10 Stephen Grant Base station, mobile terminal device and method for implementing a selective-per-antenna-rate-control (S-PARC) technique in a wireless communications network
US8045599B2 (en) * 2005-02-17 2011-10-25 Sony Corporation Selection of training sequences for multiple-in multiple-out transmissions
KR100950644B1 (ko) * 2005-03-04 2010-04-01 삼성전자주식회사 다중사용자 다중입출력 시스템의 피드백 방법
US7940640B2 (en) * 2006-01-20 2011-05-10 Nortel Networks Limited Adaptive orthogonal scheduling for virtual MIMO system

Also Published As

Publication number Publication date
KR20080110839A (ko) 2008-12-19
US8914015B2 (en) 2014-12-16
JP2009530987A (ja) 2009-08-27
NZ570779A (en) 2010-08-27
BRPI0708952B8 (pt) 2020-01-21
CA2823573A1 (en) 2007-09-27
JP2013168953A (ja) 2013-08-29
RU2390948C1 (ru) 2010-05-27
WO2007109630A1 (en) 2007-09-27
ES2556129T3 (es) 2016-01-13
CA2643512A1 (en) 2007-09-27
EP1997255A1 (en) 2008-12-03
US20070223423A1 (en) 2007-09-27
EP1997255B1 (en) 2015-10-07
IL193629A0 (en) 2009-05-04
BRPI0708952A2 (pt) 2011-06-14
TW200803233A (en) 2008-01-01
MX2008011987A (es) 2008-10-03
BRPI0708952B1 (pt) 2019-10-08
CN101405978A (zh) 2009-04-08
TWI360315B (en) 2012-03-11
KR101131753B1 (ko) 2012-04-06
CA2823572A1 (en) 2007-09-27
CN101405978B (zh) 2013-11-06
JP5497218B2 (ja) 2014-05-21
CA2643512C (en) 2013-11-19
AU2007226913A1 (en) 2007-09-27
NO20084392L (no) 2008-10-20

Similar Documents

Publication Publication Date Title
AR059991A1 (es) Agrupacion de usuarios para la transmision de mimo en un sistema de comunicaciones inalambrico
AR056685A1 (es) Metodo y sistema para proveer informacion de control para soportar enlace descendente y enlace ascendente de alta velocidad
ES2653724T3 (es) Método para transmitir y recibir información de control a través de PDCCH
ES2561303T3 (es) Notificación de CSI para un conjunto de recursos CSI-RS
ES2628234T3 (es) Un procedimiento y aparato para enviar una realimentación del indicador de calidad del canal en un sistema de múltiples portadoras que usa un esquema de portadora de anclaje
ES2498950T3 (es) Canal de control de enlace ascendente de área local optimizada
AR056596A1 (es) Canal de senalizacion de eliminacion selectiva para un sistema de comunicacion inalambrico
CL2009002086A1 (es) Aparato para enviar/recibir un indicador de busqueda de equipos de usuarios (ue) en un sistema de comunicaciones inalambricas (divisional de la solicitud 1210-2007).
BR112012014891A2 (pt) método e aparelho para reportar status de armazenador temporário
BR112013003563B8 (pt) Relatório indicador de qualidade de canal aperiódico em agregação de portadoras
AR069058A1 (es) Seleccion de parametros de transmision, para el acceso basado en la contencion, en los sistemas inalambricos
AR053923A1 (es) Seleccion de la estacion base servidora en un sistema de comunicacion inalambrico
AR050002A1 (es) Senalizacion eficiente por canal de acceso
AR088887A2 (es) Aparatos para utilizar en una disposicion de comunicacion inalambrica, metodos para asignar señalizacion y datos en una banda ancha y disposiciones para transmitir datos de señalizacion y simbolos de datos
AR076391A1 (es) Metodo y aparato para acceso aleatorio en comunicaciones inalambricas multiportadoras
AR072931A1 (es) Metodo y aparato para realizar enlace de transferencia compartida con cambio de celda de canal
CL2009000738A1 (es) Un aparato para transmitir con configuraciones de antenas virtuales en un sistema de comunicaciones inalambricas. (divisional solicitud 2204-06)
TW200737872A (en) Method for selection and signaling of downlink and uplink bandwidth in wireless networks
AR056856A1 (es) MÉTODOS Y APARATOS PARA INFORMAR LA INFORMACIoN DE BACKLOG DE TRANSMISIoN
CL2012001997A1 (es) Un equipo de usuario, estacion base de radio, y metodos operativos para la transmision de informacion de control de enlace ascendente comprendida en un bloque de bits a traves de un canal hacia la estacion base de radio.
AR073022A1 (es) Metodo y aparato para operacion de control de canal en geran
BR112015000162A2 (pt) agregação de portadoras de dados para agregação de portadoras
ES2422715T3 (es) Método de comunicación inalámbrica y aparato para la presentación de informes de la información de medición del volumen del tráfico para soportar transmisiones de datos de enlace ascendente mejorado
AR052435A1 (es) Multiplejado de mc-cdma en un enlace ascendente ortogonal
AR059311A1 (es) Aparato y procedimiento para determinacion y colocacion de recursos basandose en calidad de servicio en sistemas de evolucion de acceso a paquetes de alta velocidad y de evolucion a largo plazo

Legal Events

Date Code Title Description
FB Suspension of granting procedure