NO20084392L - Gruppering av brukere for MIMO-overforing i et system for tradlos kommunikasjon - Google Patents

Gruppering av brukere for MIMO-overforing i et system for tradlos kommunikasjon

Info

Publication number
NO20084392L
NO20084392L NO20084392A NO20084392A NO20084392L NO 20084392 L NO20084392 L NO 20084392L NO 20084392 A NO20084392 A NO 20084392A NO 20084392 A NO20084392 A NO 20084392A NO 20084392 L NO20084392 L NO 20084392L
Authority
NO
Norway
Prior art keywords
user equipment
group
mimo transmission
wireless communication
communication system
Prior art date
Application number
NO20084392A
Other languages
English (en)
Inventor
Durga Prasad Malladi
Byoung-Hoon Kim
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 NO20084392L publication Critical patent/NO20084392L/no

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
    • 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

Teknikker for å støtte/håndtere MIMOoverføring (overføring ved flere innganger, flere utganger) presenteres, der brukerutstyr UE klassifiseres i henholdsvis en første gruppe for enkeltvis planoppsetting, og en andre gruppe med brukerutstyr som det kan settes opp en felles plan for. Klassifiseringen kan være basert på antallet sender- og mottakerantenner, trafikkbelastningen i sektoren, datakrav, langtids kanalstatistikk, antallet brukerutstyr UE etc. Informasjon vedrørende kanalkvalitet (CQI) og mottatt fra brukerutstyret tolkes på forskjellig vis, i avhengighet av hvilken gruppe brukerutstyret hører til. Et enkelt brukerutstyr kan velges ved et tidspunkt fra den første gruppe, eller flere brukerutstyr UE kan velges ved et tidspunkt, fra den andre gruppe, for MIMO-overføring. En slik overføring kan sendes til et enkelt brukerutstyr i den første gruppe, eller til flere utstyr (UE) i den andre gruppe, ved rater valgt ut fra informasjonen CQI.
NO20084392A 2006-03-20 2008-10-20 Gruppering av brukere for MIMO-overforing i et system for tradlos kommunikasjon NO20084392L (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US78483706P 2006-03-20 2006-03-20
US78560106P 2006-03-24 2006-03-24
PCT/US2007/064329 WO2007109630A1 (en) 2006-03-20 2007-03-19 Grouping of users for mimo transmission in a wireless communication system

Publications (1)

Publication Number Publication Date
NO20084392L true NO20084392L (no) 2008-10-20

Family

ID=38255372

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20084392A NO20084392L (no) 2006-03-20 2008-10-20 Gruppering av brukere for MIMO-overforing i et system for tradlos kommunikasjon

Country Status (17)

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

Families Citing this family (143)

* 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
BRPI0715897B1 (pt) * 2006-08-18 2019-11-12 Qualcomm Inc realimentação de indicação de controle de pré-codificação (pci) e de indicação de qualidade de canal (cqi) em um sistema de comunicação sem fio
US7839835B2 (en) * 2006-08-22 2010-11-23 Nec Laboratories America, Inc. Quantized precoding over a set of parallel channels
KR20090087907A (ko) * 2006-12-06 2009-08-18 톰슨 라이센싱 다중-입력 다중-출력(ｍｉｍｏ) 시스템에서의 오버헤드의 감소
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
JP5113239B2 (ja) * 2007-03-26 2013-01-09 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 通信ネットワークに関する方法および構成
EP2797250B1 (en) * 2007-04-20 2017-12-20 InterDigital Technology Corporation Method and apparatus for efficient precoding information validation for mimo communications
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
WO2008138165A1 (en) * 2007-05-10 2008-11-20 Alcatel Shanghai Bell Co., Ltd. Method and device for pre-processing data to be transmitted in multi input communication system
US7983710B2 (en) * 2007-05-31 2011-07-19 Alcatel-Lucent Usa Inc. Method of coordinated wireless downlink transmission
HUE057563T2 (hu) * 2007-06-27 2022-05-28 Unwired Planet International Ltd Eljárás és elrendezések telekommunikációs hálózatban, amely támogatja MU-MIMO-t és SU-MIMO-t
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
EP2750304B1 (en) 2007-10-08 2018-02-28 Telefonaktiebolaget LM Ericsson (publ) Methods and arrangements for signaling control information in a communication system
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
ATE536026T1 (de) * 2007-10-30 2011-12-15 Alcatel Lucent Verfahren und vorrichtung zur vorkodierung von kommunikationssignalen
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
KR100991794B1 (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
WO2009100567A1 (zh) * 2008-01-30 2009-08-20 Alcatel Shanghai Bell Co., Ltd. 长期统计csi辅助mu-mimo调度方法、基站和用户设备
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
EP2341731B1 (en) * 2008-10-30 2017-08-02 Alcatel Lucent Cooperative type conversion technique of 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
US9055561B2 (en) 2008-12-18 2015-06-09 Nec Laboratories America, Inc. MU-MIMO-OFDMA systems and methods for servicing overlapping co-scheduled users
JP5322327B2 (ja) 2009-01-05 2013-10-23 マーベル ワールド トレード リミテッド Ｍｉｍｏ通信システムのコードブックのプリコーディング
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
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
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
US8867495B2 (en) * 2009-03-20 2014-10-21 Qualcomm Incorporated Feedback mechanisms for beamforming operation
JP2012521107A (ja) * 2009-03-20 2012-09-10 ▲ホア▼▲ウェイ▼技術有限公司 プリコーディング制御指示情報を受信およびフィードバックする方法、ならびにその通信デバイス
EP2413658B1 (en) * 2009-03-25 2015-03-11 Alcatel Lucent Method and equipment for controlling co-channel interference in 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
JP5607143B2 (ja) * 2009-04-21 2014-10-15 マーベル ワールド トレード リミテッド 通信方法、通信装置、携帯通信端末、チップセット、および、通信システム
US20110105137A1 (en) * 2009-04-23 2011-05-05 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
MY152716A (en) * 2009-04-27 2014-11-28 Samsung Electronics Co Ltd Transmitting/receiving apparatus and method thereof in codebook based multiple antenna system
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
US9584199B2 (en) * 2009-09-21 2017-02-28 Kathrein-Werke Kg User group specific beam forming in a mobile network
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
DE102009043439A1 (de) * 2009-09-29 2011-03-31 Rohde & Schwarz Gmbh & Co. Kg Vorrichtung und Verfahren zur Messung der Kanalqualitäts-Rückmeldungen von Mobilstationen
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
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
US8675794B1 (en) 2009-10-13 2014-03-18 Marvell International Ltd. Efficient estimation of feedback for modulation and coding scheme (MCS) selection
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
US8325860B2 (en) 2009-11-09 2012-12-04 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
CN102783120B (zh) * 2009-12-17 2015-07-01 马维尔国际贸易有限公司 用于交叉极化天线的mimo反馈方案
WO2011083417A2 (en) * 2010-01-07 2011-07-14 Marvell World Trade Ltd Signaling of dedicated reference signal (drs) precoding granularity
EP2524448B1 (en) 2010-01-11 2020-03-11 Koninklijke Philips N.V. A 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
JP5477482B2 (ja) * 2010-03-19 2014-04-23 富士通株式会社 マルチセルｍｉｍｏ送信のためのセル選択
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
JP5757994B2 (ja) 2010-04-20 2015-08-05 テレコム・イタリア・エッセ・ピー・アー ワイヤレス通信の方法及びシステム、対応するネットワーク及びコンピュータプログラム製品
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
ES2637070T3 (es) 2010-10-19 2017-10-10 Telefonaktiebolaget Lm Ericsson (Publ) Dispositivo de antena y método para precodificar datos en un sistema de múltiple entrada múltiple salida
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
US8730989B2 (en) * 2011-02-11 2014-05-20 Interdigital Patent Holdings, Inc. 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
KR101606965B1 (ko) 2011-03-18 2016-04-11 후지쯔 가부시끼가이샤 무선 통신 시스템, 이동국, 기지국 및 무선 통신 방법
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
WO2013068915A2 (en) 2011-11-07 2013-05-16 Marvell World Trade Ltd. Precoding feedback for cross-polarized antennas with magnitude information
WO2013068916A1 (en) 2011-11-07 2013-05-16 Marvell World Trade Ltd. Codebook sub-sampling for frequency-selective precoding feedback
WO2013068974A1 (en) 2011-11-10 2013-05-16 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
WO2013104428A1 (en) * 2012-01-13 2013-07-18 Nec Europe Ltd. Method for operating a wireless network, a wireless network and a device
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
WO2015073937A1 (en) 2013-11-17 2015-05-21 Ping Liang 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
WO2015095843A1 (en) 2013-12-20 2015-06-25 Ping Liang 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
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
US10122492B2 (en) * 2015-06-28 2018-11-06 RF DSP Inc. 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
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
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
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
KR102461231B1 (ko) 2019-07-25 2022-10-28 구글 엘엘씨 사용자 단말(ue) 조정 세트 재그룹핑
WO2021029879A1 (en) 2019-08-13 2021-02-18 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
CN100555906C (zh) 2003-12-19 2009-10-28 艾利森电话股份有限公司 基于mimo的通信系统中的方法和设备
WO2005062497A1 (en) 2003-12-22 2005-07-07 Telefonaktiebolaget Lm Ericsson (Publ) A 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

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