TW200616367A - Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system - Google Patents

Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system

Info

Publication number
TW200616367A
TW200616367A TW094126106A TW94126106A TW200616367A TW 200616367 A TW200616367 A TW 200616367A TW 094126106 A TW094126106 A TW 094126106A TW 94126106 A TW94126106 A TW 94126106A TW 200616367 A TW200616367 A TW 200616367A
Authority
TW
Taiwan
Prior art keywords
sub
antenna
transmit
power control
mimo
Prior art date
Application number
TW094126106A
Other languages
English (en)
Other versions
TWI309514B (en
Inventor
Fatih M Ozluturk
Philip J Pietraski
Aykut Bultan
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 TW200616367A publication Critical patent/TW200616367A/zh
Application granted granted Critical
Publication of TWI309514B publication Critical patent/TWI309514B/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/26TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/262TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account adaptive modulation and coding [AMC] scheme
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • H04B7/0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/046Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J11/00Orthogonal multiplex systems, e.g. using WALSH codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0023Time-frequency-space
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0023Time-frequency-space
    • H04L5/0025Spatial division following the spatial signature of the channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H04L5/0046Determination of how many bits are transmitted on different sub-channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • H04L5/006Quality of the received signal, e.g. BER, SNR, water filling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/38TPC being performed in particular situations
    • H04W52/42TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202Channel estimation
    • H04L25/0204Channel estimation of multiple channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
TW094126106A 2004-08-12 2005-08-01 Method and apparatus for subcarrier and antenna selection in mimo-ofdm system TWI309514B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60120004P 2004-08-12 2004-08-12
US11/082,286 US8270512B2 (en) 2004-08-12 2005-03-17 Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system

Publications (2)

Publication Number Publication Date
TW200616367A true TW200616367A (en) 2006-05-16
TWI309514B TWI309514B (en) 2009-05-01

Family

ID=35799938

Family Applications (3)

Application Number Title Priority Date Filing Date
TW094126106A TWI309514B (en) 2004-08-12 2005-08-01 Method and apparatus for subcarrier and antenna selection in mimo-ofdm system
TW097128903A TW200919999A (en) 2004-08-12 2005-08-01 Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system
TW095104279A TW200703971A (en) 2004-08-12 2005-08-01 Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system

Family Applications After (2)

Application Number Title Priority Date Filing Date
TW097128903A TW200919999A (en) 2004-08-12 2005-08-01 Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system
TW095104279A TW200703971A (en) 2004-08-12 2005-08-01 Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system

Country Status (12)

Country Link
US (3) US8270512B2 (zh)
EP (1) EP1779681A2 (zh)
JP (1) JP2008510376A (zh)
KR (1) KR20070043880A (zh)
AU (2) AU2005274106B2 (zh)
BR (1) BRPI0515014A (zh)
CA (1) CA2576513A1 (zh)
IL (1) IL181225A0 (zh)
MX (1) MX2007001707A (zh)
NO (1) NO20071291L (zh)
TW (3) TWI309514B (zh)
WO (1) WO2006020434A2 (zh)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8270512B2 (en) * 2004-08-12 2012-09-18 Interdigital Technology Corporation Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system
KR100648472B1 (ko) * 2004-10-19 2006-11-28 삼성전자주식회사 다중 송신 다중 수신 안테나 통신 시스템에서 적응 변조및 부호 성능을 최적화하기 위한 송·수신 장치 및 방법
WO2006077620A1 (ja) * 2005-01-18 2006-07-27 Fujitsu Limited Ofdm-cdma通信システムにおける送信方法および送信装置
KR20060096365A (ko) * 2005-03-04 2006-09-11 삼성전자주식회사 다중 사용자 다중입력 다중출력(mu-mimo)통신시스템의 사용자 스케줄링 방법
JP5078610B2 (ja) * 2005-05-26 2012-11-21 パナソニック株式会社 無線通信装置および無線通信方法
CN101223750B (zh) * 2005-05-27 2012-05-16 诺基亚公司 在多发送信道系统中向信道分配子信道
US7783267B1 (en) * 2005-06-23 2010-08-24 Magnolia Broadband Inc. Modifying a signal in response to quality indicator availability
US8068872B2 (en) * 2005-10-06 2011-11-29 Telefonaktiebolaget Lm Ericsson (Publ) Signaling support for antenna selection using subset lists and subset masks
KR100717828B1 (ko) * 2005-12-09 2007-05-11 한국전자통신연구원 다중사용자 ofdm 시스템에서의 적응적 전송전력 할당방법
US20080051037A1 (en) 2005-12-29 2008-02-28 Molnar Karl J BASE STATION AND METHOD FOR SELECTING BEST TRANSMIT ANTENNA(s) FOR SIGNALING CONTROL CHANNEL INFORMATION
US20070165576A1 (en) * 2005-12-29 2007-07-19 Telefonaktiebolaget Lm Ericsson (Publ) Mimo control channel with shared channelization codes
CN101026429B (zh) * 2006-02-17 2010-11-10 华为技术有限公司 为多载波用户设备分配高速下行共享信道的方法
CN1829138B (zh) 2006-04-07 2010-04-07 清华大学 自适应多输入多输出发送接收系统及其方法
US7526036B2 (en) * 2006-04-20 2009-04-28 Mitsubishi Electric Research Laboratories, Inc. System and method for transmitting signals in cooperative base station multi-user mimo networks
KR100842259B1 (ko) * 2006-04-21 2008-06-30 한국전자통신연구원 다중 반송파 변조 방식을 이용한 인체 통신 방법
US7933344B2 (en) 2006-04-25 2011-04-26 Mircosoft Corporation OFDMA based on cognitive radio
US7634016B2 (en) * 2006-04-25 2009-12-15 Microsoft Corporation Variable OFDM subchannel coding and modulation
US8189621B2 (en) 2006-05-12 2012-05-29 Microsoft Corporation Stack signaling to application with lack of requested bandwidth
KR100920387B1 (ko) * 2006-07-05 2009-10-07 삼성전자주식회사 적응적 안테나 시스템의 무선 자원 할당 장치 및 방법
US7787567B2 (en) 2006-09-26 2010-08-31 Intel Corporation Beamforming by antenna puncturing
US8144793B2 (en) 2006-12-12 2012-03-27 Microsoft Corporation Cognitive multi-user OFDMA
KR100866615B1 (ko) * 2007-01-18 2008-11-04 고려대학교 산학협력단 통신 시스템에서 신호 송수신 방법 및 장치
KR100947504B1 (ko) * 2007-02-13 2010-03-12 삼성전자주식회사 다중 안테나 시스템의 송신단에서 간섭을 제거하기 위한장치 및 방법
US7787836B2 (en) * 2007-03-12 2010-08-31 Intel Corporation Multiple radios communication device and a method thereof
EP1971043A1 (en) 2007-03-16 2008-09-17 Sony Deutschland GmbH Transmitting device and method for transmitting signals in a wireless communication system, receiving device and method for receiving signals in a wireless communication system
US7929623B2 (en) * 2007-03-30 2011-04-19 Microsoft Corporation FEC in cognitive multi-user OFDMA
US7970085B2 (en) 2007-05-08 2011-06-28 Microsoft Corporation OFDM transmission and reception for non-OFDMA signals
JP5102355B2 (ja) * 2007-06-21 2012-12-19 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) 適応アンテナ送信及びアンテナ較正
RU2460216C2 (ru) * 2007-07-06 2012-08-27 Телефонактиеболагет Лм Эрикссон (Пабл) Установка максимальной мощности в базовой станции системы мобильной связи, имеющей множество антенн
KR101531053B1 (ko) 2007-08-10 2015-06-25 한국전자통신연구원 다중 안테나 선택 기법을 이용한 적응 변조 장치 및 방법
WO2009022818A2 (en) * 2007-08-10 2009-02-19 Electronics And Telecommunications Research Institute System and method for modulating data adaptively using selection of multi antenna
KR100910178B1 (ko) * 2007-09-05 2009-07-30 재단법인서울대학교산학협력재단 다중 사용자 다중 송수신 안테나 장치 및 그 방법
CN101394257B (zh) * 2007-09-18 2012-03-07 中兴通讯股份有限公司 多用户多输入多输出预编码的天线选择方法及其装置
TW200929917A (en) * 2007-09-19 2009-07-01 Agency Science Tech & Res A method of transmitting data to a receiver
GB2453148B (en) * 2007-09-27 2009-08-19 Toshiba Res Europ Ltd Interference avoidance
GB2453147B (en) * 2007-09-27 2009-11-18 Toshiba Res Europ Ltd A wireless transmission device
GB2453171B (en) * 2007-09-28 2012-09-05 Toshiba Res Europ Ltd A wireless transmission device and method
US7986741B2 (en) * 2007-09-28 2011-07-26 Samsung Electronics Co., Ltd. Method and apparatus of improved circular buffer rate matching for turbo-coded MIMO-OFDM wireless systems
WO2009054685A2 (en) * 2007-10-25 2009-04-30 Electronics And Telecommunications Research Institute Multi-antenna communication method and system thereof
KR20090042140A (ko) 2007-10-25 2009-04-29 한국전자통신연구원 다중 안테나 통신 방법 및 시스템
US8107428B2 (en) * 2007-12-06 2012-01-31 Ntt Docomo, Inc. Method of ranging signal design and transmission for MIMO-OFDMA initial ranging process
CN101471907A (zh) * 2007-12-28 2009-07-01 三星电子株式会社 多入多出系统中的预编码方法及使用该方法的装置
GB2456547B (en) * 2008-01-17 2010-08-18 Toshiba Res Europ Ltd Wireless communications apparatus
US8374130B2 (en) 2008-01-25 2013-02-12 Microsoft Corporation Orthogonal frequency division multiple access with carrier sense
KR100921556B1 (ko) * 2008-02-15 2009-10-12 주식회사 케이티 배열 안테나 시스템
CN104135313B (zh) 2008-02-28 2019-01-04 苹果公司 基站、移动站和用于操作第一无线节点的方法
GB2458111A (en) * 2008-03-04 2009-09-09 Kassem Benzair OFDM-MIMO System
ES2402910T3 (es) * 2008-03-13 2013-05-10 Telefonaktiebolaget L M Ericsson (Publ) Método y disposiciones para el control de la potencia de un multiportador de enlace ascendente en un sistema de comunicaciones inalámbrico
US8155063B2 (en) 2008-04-28 2012-04-10 Apple Inc. Apparatus and methods for transmission and reception of data in multi-antenna systems
JP5416202B2 (ja) * 2008-04-28 2014-02-12 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) 無線通信システム内におけるダウンリンクマルチキャリアの電力制御のための方法および構成
KR101495047B1 (ko) * 2008-07-01 2015-03-03 삼성전자주식회사 고속 패킷 억세스 시스템의 데이터 전송 장치 및 방법
US20110164526A1 (en) * 2008-09-04 2011-07-07 Bando Chemical Industries Ltd Method and apparatus for uplink signal transmission and channel estimation in wireless access network
KR20100053417A (ko) * 2008-11-11 2010-05-20 엘지전자 주식회사 다중입력다중출력 시스템에서 신호 전송 방법 및 신호 수신 방법
JP5389932B2 (ja) * 2008-11-14 2014-01-15 エルジー エレクトロニクス インコーポレイティド 多重アンテナシステムにおける複数のリソースを用いたデータ送信方法及び装置
US8855087B2 (en) * 2008-12-18 2014-10-07 Microsoft Corporation Wireless access point supporting control by multiple applications
US9357511B2 (en) * 2008-12-19 2016-05-31 Nokia Technologies Oy Two power control loops for antenna switching transmit diversity
KR101013708B1 (ko) 2008-12-31 2011-02-10 주식회사 세아네트웍스 광대역 무선 통신 시스템에서의 스케줄링 장치 및 방법
WO2010077023A2 (ko) * 2008-12-31 2010-07-08 포스데이타 주식회사 광대역 무선 통신 시스템에서의 스케줄링 장치 및 방법
KR101505118B1 (ko) 2008-12-31 2015-03-24 서울대학교산학협력단 다중사용자 mimo 시스템에서 사용자 선택 장치 및 방법
US8583160B2 (en) * 2009-05-04 2013-11-12 Qualcomm Incorporated Uplink power control for wireless communication
TWI466457B (zh) * 2009-10-26 2014-12-21 Acer Inc 用以傳輸視訊之無線傳輸介面及其電源控制方法
GB2475307B (en) * 2009-11-13 2012-05-16 Toshiba Res Europ Ltd Wireless communications apparatus and method
US20110158340A1 (en) * 2009-12-28 2011-06-30 Qualcomm Incorporated Virtual antenna array for wireless devices
US9179427B2 (en) 2010-05-07 2015-11-03 Qualcomm Incorporated Transmission power dependent imbalance compensation for multi-antenna systems
GB2482197B (en) * 2010-07-23 2013-07-17 Toshiba Res Europ Ltd Method and apparatus for antenna selection in wireless communication systems
KR101480531B1 (ko) 2010-09-13 2015-01-08 한국전자통신연구원 무선통신 시스템에서 부반송파 간격의 제어장치 및 방법
KR20140053252A (ko) * 2011-08-05 2014-05-07 인텔 코포레이션 상이한 전송 전력 레벨에서 멀티-mcs ofdm 전송을 위한 무선 통신 디바이스 및 방법
CN103947170B (zh) 2011-11-21 2018-01-19 英特尔公司 用于低功率和低数据率操作的无线设备和方法
CN103139180B (zh) * 2011-12-01 2016-08-03 华为技术有限公司 一种基于流媒体业务提升小区吞吐量的方法和装置
US9532272B2 (en) * 2012-07-02 2016-12-27 Mediatek Inc. Methods for managing radio resources between multiple radio modules and communications apparatus utilizing the same
KR101972950B1 (ko) * 2012-07-19 2019-04-26 삼성전자 주식회사 무선 통신 시스템에서 다중 빔포밍을 위한 전력제어 방법 및 장치
KR20140115785A (ko) * 2013-03-22 2014-10-01 한국전자통신연구원 무선 링크 장치
WO2014154237A1 (en) * 2013-03-25 2014-10-02 Nokia Solutions And Networks Oy Error correction coding scheme on a frequency band comprising sub-bands
US10020882B2 (en) 2016-01-07 2018-07-10 Ozyegin Universitesi Adaptive multiple input multiple output (MIMO) optical orthogonal frequency division multiplexing (O-OFDM) based visible light communication
KR102055826B1 (ko) * 2016-12-02 2019-12-13 에스케이텔레콤 주식회사 기지국 및 단말 장치
US10044537B2 (en) * 2016-12-28 2018-08-07 Intel IP Corporation Frequency domain pulse position modulation
KR102486002B1 (ko) * 2018-05-28 2023-01-10 에스케이텔레콤 주식회사 안테나의 송신출력 제어 방법 및 장치
KR102025641B1 (ko) * 2018-07-09 2019-11-04 에스케이텔레콤 주식회사 기지국 및 단말 장치
US11310714B1 (en) * 2020-03-27 2022-04-19 T-Mobile Innovations Llc Load balancing based on pairing efficiency
GB2598740B (en) * 2020-09-09 2022-11-30 British Telecomm Wireless telecommunication system

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416925A (en) * 1993-12-08 1995-05-23 Davis; Scott Necktie and method of manufacture
SE515752C2 (sv) * 1995-08-28 2001-10-08 Telia Ab Direktåtkomst i OFDM-system
US5901377A (en) * 1998-02-10 1999-05-11 Hge Enterprises, Llc Necktie personalization kit
US6351499B1 (en) * 1999-12-15 2002-02-26 Iospan Wireless, Inc. Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter
US6473467B1 (en) * 2000-03-22 2002-10-29 Qualcomm Incorporated Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system
EP1821480B1 (en) * 2000-08-24 2009-10-21 Sony Deutschland Gmbh Communication device for receiving and transmitting OFDM signals in a wireless communication system
US7233625B2 (en) 2000-09-01 2007-06-19 Nortel Networks Limited Preamble design for multiple input—multiple output (MIMO), orthogonal frequency division multiplexing (OFDM) system
US7006464B1 (en) * 2000-11-17 2006-02-28 Lucent Technologies Inc. Downlink and uplink channel structures for downlink shared channel system
US6859503B2 (en) * 2001-04-07 2005-02-22 Motorola, Inc. Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel
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
US7072413B2 (en) 2001-05-17 2006-07-04 Qualcomm, Incorporated Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion
US7688899B2 (en) 2001-05-17 2010-03-30 Qualcomm Incorporated Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion
US6751187B2 (en) 2001-05-17 2004-06-15 Qualcomm Incorporated Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission
KR100703295B1 (ko) * 2001-08-18 2007-04-03 삼성전자주식회사 이동통신시스템에서 안테나 어레이를 이용한 데이터 송/수신 장치 및 방법
US6956907B2 (en) * 2001-10-15 2005-10-18 Qualcomm, Incorporated Method and apparatus for determining power allocation in a MIMO communication system
US7304939B2 (en) * 2001-12-03 2007-12-04 Nortel Networks Limited Communication using simultaneous orthogonal signals
US7197084B2 (en) 2002-03-27 2007-03-27 Qualcomm Incorporated Precoding for a multipath channel in a MIMO system
EP1983651B1 (en) 2002-07-30 2014-11-05 IPR Licensing, Inc. Device for multiple-input multiple output (MIMO) radio communication
US20040121730A1 (en) 2002-10-16 2004-06-24 Tamer Kadous Transmission scheme for multi-carrier MIMO systems
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US8218609B2 (en) * 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US8208364B2 (en) 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
KR100511559B1 (ko) 2002-11-28 2005-08-31 한국전자통신연구원 시변 채널 왜곡 제거 기능을 가지는 주파수 분할 다중시스템에서의 송수신 방법
US20040105512A1 (en) 2002-12-02 2004-06-03 Nokia Corporation Two step synchronization procedure for orthogonal frequency division multiplexing (OFDM) receivers
KR100542090B1 (ko) * 2002-12-16 2006-01-11 한국전자통신연구원 무선 통신 시스템에서의 오류 제어 방법, 매체 접속 제어프레임 설계 방법 및 단말기 등록 방법과 기록 매체
US7352688B1 (en) * 2002-12-31 2008-04-01 Cisco Technology, Inc. High data rate wireless bridging
US7154960B2 (en) * 2002-12-31 2006-12-26 Lucent Technologies Inc. Method of determining the capacity of each transmitter antenna in a multiple input/multiple output (MIMO) wireless system
US7203261B2 (en) * 2003-04-07 2007-04-10 Qualcomm Incorporated Phase locked loop for an OFDM system
US7453793B1 (en) * 2003-04-10 2008-11-18 Qualcomm Incorporated Channel estimation for OFDM communication systems including IEEE 802.11A and extended rate systems
EP1480400A1 (en) * 2003-05-21 2004-11-24 Siemens Mobile Communications S.p.A. A method of bit and power loading in OFDM communication systems with modulation and coding adaptation
KR100689382B1 (ko) 2003-06-20 2007-03-02 삼성전자주식회사 직교분할다중화방식을 기반으로 하는이동통신시스템에서의 송신장치 및 방법
US7382719B2 (en) 2003-09-05 2008-06-03 Texas Instruments Incorporated Scalable and backwards compatible preamble for OFDM systems
US7120395B2 (en) * 2003-10-20 2006-10-10 Nortel Networks Limited MIMO communications
KR100996080B1 (ko) 2003-11-19 2010-11-22 삼성전자주식회사 직교 주파수 분할 다중 방식을 사용하는 통신 시스템에서적응적 변조 및 코딩 제어 장치 및 방법
US7298805B2 (en) 2003-11-21 2007-11-20 Qualcomm Incorporated Multi-antenna transmission for spatial division multiple access
US7145940B2 (en) 2003-12-05 2006-12-05 Qualcomm Incorporated Pilot transmission schemes for a multi-antenna system
US7701917B2 (en) 2004-02-05 2010-04-20 Qualcomm Incorporated Channel estimation for a wireless communication system with multiple parallel data streams
US7356017B2 (en) * 2004-02-19 2008-04-08 Nokia Corporation Data loading method, transmitter, and base station
GB2411328B (en) 2004-02-23 2007-05-16 Toshiba Res Europ Ltd Adaptive MIMO systems
KR100946923B1 (ko) 2004-03-12 2010-03-09 삼성전자주식회사 직교 주파수 분할 다중 방식을 사용하는 통신 시스템에서 채널 품질 정보의 송수신 장치 및 방법, 그리고 그에 따른 시스템
US20050213686A1 (en) * 2004-03-26 2005-09-29 Texas Instruments Incorporated Reduced complexity transmit spatial waterpouring technique for multiple-input, multiple-output communication systems
US8270512B2 (en) * 2004-08-12 2012-09-18 Interdigital Technology Corporation Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system

Also Published As

Publication number Publication date
WO2006020434A3 (en) 2006-07-06
US8270512B2 (en) 2012-09-18
AU2005274106B2 (en) 2009-02-26
US20120275540A1 (en) 2012-11-01
AU2005274106A1 (en) 2006-02-23
TWI309514B (en) 2009-05-01
JP2008510376A (ja) 2008-04-03
TW200919999A (en) 2009-05-01
NO20071291L (no) 2007-05-07
US20150030097A1 (en) 2015-01-29
TW200703971A (en) 2007-01-16
IL181225A0 (en) 2007-07-04
WO2006020434A2 (en) 2006-02-23
EP1779681A2 (en) 2007-05-02
BRPI0515014A (pt) 2008-07-01
KR20070043880A (ko) 2007-04-25
MX2007001707A (es) 2007-04-12
AU2009201802A1 (en) 2009-05-28
US20060034382A1 (en) 2006-02-16
CA2576513A1 (en) 2006-02-23
US8861632B2 (en) 2014-10-14

Similar Documents

Publication Publication Date Title
TW200616367A (en) Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system
US9973365B2 (en) Method and system for combining DFT-transformed OFDM and non-transformed OFDM
KR100830614B1 (ko) 다중 안테나 송신 시스템 및 이를 이용한 신호 전송 방법
CN102812763B (zh) 用于上行链路发射分集的信令和信道估计
CN105530217B (zh) 基于加权分数傅里叶变换的gfdm系统的信号发射和接收方法
US7729432B2 (en) System and method for enhancing the performance of wireless communication systems
US8731077B2 (en) Wireless communication system, control station apparatus and terminal apparatus
KR101567078B1 (ko) 다중안테나를 이용한 데이터 전송장치 및 방법
KR101440628B1 (ko) Sc-fdma 시스템에서 전송 다이버시티를 이용한 데이터 전송장치 및 방법
JP2008510376A5 (zh)
KR20080114452A (ko) 다중 안테나 시스템에서 데이터 전송방법 및 코드북구성방법
WO2008151534A1 (fr) Système à multiples antennes et procédé de transmission de données
US8886138B2 (en) Wireless communication system, wireless transmitter, and control program for wireless transmitter
JP2011514742A5 (zh)
CN102014088A (zh) 利用agc调整因子辅助信道均衡的方法
CN101208878A (zh) 发射分集方案
PL1620959T3 (pl) Sposób i nadajnik do transmisji danych w systemie wielonośnym za pomocą większej liczby anten nadawczych
KR20100111608A (ko) 무선통신 시스템에서 전력정보 전송방법
CN101453258B (zh) Svd预编码方法、预解码方法及使用所述方法的系统
CN105262525B (zh) 多输入多输出正交频分复用系统子载波分簇预编码方法
CA2469913A1 (en) Method and apparatus for multi-carrier transmission
KR20100041908A (ko) 채널 상태를 이용하여 수신 안테나 모드를 선택할 수 있는 수신기 및 이의 수신 안테나 선택 방법
WO2007104203A1 (fr) Procédé de transmission multi-antenne dans un système de multiplexage par répartition orthogonale de la fréquence et appareil associé
KR101108058B1 (ko) 다수의 부 반송파를 이용하여 데이터를 송수신하는 방법
Gidlund A sub-optimal eigenvalue-based adaptive modulation scheme for broadband MIMO-OFDM systems