TW200703971A - 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
TW200703971A
TW200703971A TW095104279A TW95104279A TW200703971A TW 200703971 A TW200703971 A TW 200703971A TW 095104279 A TW095104279 A TW 095104279A TW 95104279 A TW95104279 A TW 95104279A TW 200703971 A TW200703971 A TW 200703971A
Authority
TW
Taiwan
Prior art keywords
sub
antenna
transmit
power control
mimo
Prior art date
Application number
TW095104279A
Other languages
English (en)
Chinese (zh)
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 TW200703971A publication Critical patent/TW200703971A/zh

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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/262—TPC 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H04L5/0025—Spatial division following the spatial signature of the channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H04L5/0046—Determination of the number of bits transmitted on different sub-channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • 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
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • 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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel 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)
TW095104279A 2004-08-12 2005-08-01 Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system TW200703971A (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 (1)

Publication Number Publication Date
TW200703971A true TW200703971A (en) 2007-01-16

Family

ID=35799938

Family Applications (3)

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

Family Applications After (2)

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

Country Status (12)

Country Link
US (3) US8270512B2 (enExample)
EP (1) EP1779681A2 (enExample)
JP (1) JP2008510376A (enExample)
KR (1) KR20070043880A (enExample)
AU (2) AU2005274106B2 (enExample)
BR (1) BRPI0515014A (enExample)
CA (1) CA2576513A1 (enExample)
IL (1) IL181225A0 (enExample)
MX (1) MX2007001707A (enExample)
NO (1) NO20071291L (enExample)
TW (3) TW200703971A (enExample)
WO (1) WO2006020434A2 (enExample)

Families Citing this family (82)

* 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
CN101185263A (zh) * 2005-05-26 2008-05-21 松下电器产业株式会社 无线通信基站装置和无线通信方法
US20090175363A1 (en) * 2005-05-27 2009-07-09 Ari Hottinen Assignment of sub-channels to channels in a multi transmission-channel system
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
US7786934B2 (en) 2007-02-13 2010-08-31 Samsung Electronics Co., Ltd Apparatus and method for removing interference in transmitting end of multi-antenna system
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
WO2008156389A1 (en) * 2007-06-21 2008-12-24 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive antenna transmission and antenna calibration
BRPI0814813A2 (pt) * 2007-07-06 2015-02-03 Ericsson Telefon Ab L M Método para operar uma estação base, e, aparelho de estação base
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
KR101531053B1 (ko) 2007-08-10 2015-06-25 한국전자통신연구원 다중 안테나 선택 기법을 이용한 적응 변조 장치 및 방법
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
CN101861704A (zh) * 2007-09-19 2010-10-13 新加坡科技研究局 传送数据至接收器的方法
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
KR20090042140A (ko) 2007-10-25 2009-04-29 한국전자통신연구원 다중 안테나 통신 방법 및 시스템
WO2009054685A2 (en) * 2007-10-25 2009-04-30 Electronics And Telecommunications Research Institute Multi-antenna communication method and system thereof
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
KR20160097381A (ko) 2008-02-28 2016-08-17 애플 인크. 무선 통신 시그널링에 적용되는 코딩을 식별하는 정보를 포함하는 피드백 데이터 구조체의 통신
GB2458111A (en) * 2008-03-04 2009-09-09 Kassem Benzair OFDM-MIMO System
EP2279635B1 (en) * 2008-03-13 2013-02-13 Telefonaktiebolaget L M Ericsson (PUBL) Methods and arrangements for uplink multicarrier power control in a wireless communications system
MX2010011035A (es) * 2008-04-28 2010-11-04 Ericsson Telefon Ab L M Metodos y disposiciones para control de energia de multi-portadora de enlace descendente en un sistema de comunicacion inalambrico.
US8155063B2 (en) 2008-04-28 2012-04-10 Apple Inc. Apparatus and methods for transmission and reception of data in multi-antenna systems
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
KR101281427B1 (ko) * 2008-11-14 2013-07-02 엘지전자 주식회사 다중 안테나 시스템에서 복수의 자원을 이용한 데이터 전송 방법 및 장치
US8855087B2 (en) * 2008-12-18 2014-10-07 Microsoft Corporation Wireless access point supporting control by multiple applications
WO2010069357A1 (en) * 2008-12-19 2010-06-24 Nokia Corporation 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
JP5813871B2 (ja) * 2011-08-05 2015-11-17 インテル コーポレイション 異なる送信電力レベルでのマルチｍｃｓｏｆｄｍ伝送のための無線通信装置及び方法
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
CN115603776A (zh) * 2021-07-09 2023-01-13 中国移动通信集团重庆有限公司（Cn） 信号处理方法、装置、设备及介质
CN115733523B (zh) * 2021-08-27 2024-12-03 维沃移动通信有限公司 传输方法、装置、设备及计算机存储介质

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
EP2755344B1 (en) * 2000-08-24 2018-07-25 Sony Deutschland Gmbh Communication device for 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
ES2318176T3 (es) * 2002-07-30 2009-05-01 Ipr Licensing Inc. Sistema y metodo de comunicacion por radio con multiple entrada multiple salida (mimo).
US20040121730A1 (en) * 2002-10-16 2004-06-24 Tamer Kadous Transmission scheme for multi-carrier MIMO systems
US8218609B2 (en) * 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US8320301B2 (en) * 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN 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
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
US7352688B1 (en) * 2002-12-31 2008-04-01 Cisco Technology, Inc. High data rate wireless bridging
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
CA2576513A1 (en) 2006-02-23
WO2006020434A2 (en) 2006-02-23
NO20071291L (no) 2007-05-07
MX2007001707A (es) 2007-04-12
JP2008510376A (ja) 2008-04-03
TW200616367A (en) 2006-05-16
KR20070043880A (ko) 2007-04-25
US8270512B2 (en) 2012-09-18
IL181225A0 (en) 2007-07-04
TW200919999A (en) 2009-05-01
EP1779681A2 (en) 2007-05-02
US8861632B2 (en) 2014-10-14
US20060034382A1 (en) 2006-02-16
TWI309514B (en) 2009-05-01
AU2009201802A1 (en) 2009-05-28
AU2005274106B2 (en) 2009-02-26
US20120275540A1 (en) 2012-11-01
WO2006020434A3 (en) 2006-07-06
US20150030097A1 (en) 2015-01-29
BRPI0515014A (pt) 2008-07-01
AU2005274106A1 (en) 2006-02-23

Similar Documents

Publication Publication Date Title
TW200703971A (en) Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system
KR100830614B1 (ko) 다중 안테나 송신 시스템 및 이를 이용한 신호 전송 방법
US9407487B2 (en) Method and system for combining OFDM and transformed OFDM
US8731077B2 (en) Wireless communication system, control station apparatus and terminal apparatus
US7729432B2 (en) System and method for enhancing the performance of wireless communication systems
KR101567078B1 (ko) 다중안테나를 이용한 데이터 전송장치 및 방법
KR101440628B1 (ko) Ｓｃ-ｆｄｍａ 시스템에서 전송 다이버시티를 이용한 데이터 전송장치 및 방법
KR20080114452A (ko) 다중 안테나 시스템에서 데이터 전송방법 및 코드북구성방법
JP2008510376A5 (enExample)
KR20130084594A (ko) 업링크 송신 다이버시티를 위한 시그널링 및 채널 추정
JP2013070431A (ja) ダウンリンクｐｄｓｃｈ電力設定のための方法及び装置
WO2008151534A1 (fr) Système à multiples antennes et procédé de transmission de données
JP2011514742A5 (enExample)
US8886138B2 (en) Wireless communication system, wireless transmitter, and control program for wireless transmitter
CN102014088A (zh) 利用agc调整因子辅助信道均衡的方法
PL1620959T3 (pl) Sposób i nadajnik do transmisji danych w systemie wielonośnym za pomocą większej liczby anten nadawczych
KR20100111608A (ko) 무선통신 시스템에서 전력정보 전송방법
CN1860693A (zh) 用于多天线通信系统的频率选择性发射信号加权
CN105262525A (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
CN101453258B (zh) Svd预编码方法、预解码方法及使用所述方法的系统
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
Somekh et al. Sum-rate analysis of general OFDM downlink channels with 1-bit feedback per sub-carrier
JP2010093788A (ja) 無線通信装置および無線通信装置の制御方法
KR101108058B1 (ko) 다수의 부 반송파를 이용하여 데이터를 송수신하는 방법