BRPI0814458A2 - Estação base de rádio, terminal sem fio, e, método de operação de uma rede de rádio - Google Patents

Estação base de rádio, terminal sem fio, e, método de operação de uma rede de rádio

Info

Publication number
BRPI0814458A2
BRPI0814458A2 BRPI0814458-3A2A BRPI0814458A BRPI0814458A2 BR PI0814458 A2 BRPI0814458 A2 BR PI0814458A2 BR PI0814458 A BRPI0814458 A BR PI0814458A BR PI0814458 A2 BRPI0814458 A2 BR PI0814458A2
Authority
BR
Brazil
Prior art keywords
operating
base station
wireless terminal
radio
radio base
Prior art date
Application number
BRPI0814458-3A2A
Other languages
English (en)
Inventor
Jingyi Liao
Lei Wan
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BRPI0814458A2 publication Critical patent/BRPI0814458A2/pt

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
    • H04B7/06—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
    • H04B7/0667—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 delayed versions of same signal
    • H04B7/0671—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 delayed versions of same signal using different delays between 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0862—Weighted combining receiver computing weights based on information from the transmitter

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
BRPI0814458-3A2A 2007-08-01 2008-07-01 Estação base de rádio, terminal sem fio, e, método de operação de uma rede de rádio BRPI0814458A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/832,314 US8131228B2 (en) 2007-08-01 2007-08-01 Interference based phase shift precoding for OFDM
PCT/SE2008/050810 WO2009017447A2 (en) 2007-08-01 2008-07-01 Interference based phase shift precoding for ofdm

Publications (1)

Publication Number Publication Date
BRPI0814458A2 true BRPI0814458A2 (pt) 2015-01-06

Family

ID=40305078

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0814458-3A2A BRPI0814458A2 (pt) 2007-08-01 2008-07-01 Estação base de rádio, terminal sem fio, e, método de operação de uma rede de rádio

Country Status (6)

Country Link
US (1) US8131228B2 (pt)
EP (1) EP2174429B1 (pt)
JP (1) JP5226786B2 (pt)
CN (1) CN101809888A (pt)
BR (1) BRPI0814458A2 (pt)
WO (1) WO2009017447A2 (pt)

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FI20055687A0 (fi) 2005-12-21 2005-12-21 Nokia Corp Radiokanavajako ja siirtoyhteyden sovitus solukkojärjestelmässä
WO2008050995A2 (en) * 2006-10-23 2008-05-02 Lg Electronics Inc. Method for transmitting data using cyclic delay diversity
KR101413309B1 (ko) * 2007-10-08 2014-06-27 엘지전자 주식회사 채널 선택성을 감소시키는 전송기 및 데이터 전송 방법
US7965780B2 (en) * 2007-12-14 2011-06-21 Telefonaktiebolaget L M Ericsson (Publ) Determination of pre-coding matrix indicators for spatial multiplexing in a mobile communications system
KR101409730B1 (ko) * 2008-01-17 2014-06-19 알까뗄 루슨트 다중-안테나 송신기에서 신호에 대한 순환 지연 맵핑을 행하는 방법 및 장치
KR101268687B1 (ko) * 2008-08-18 2013-05-29 한국전자통신연구원 다중-셀 협력 통신을 위한 기지국들 및 단말을 포함하는 통신 시스템
WO2010128744A1 (en) * 2009-05-06 2010-11-11 Lg Electronics Inc. Method of transmitting and receiving channel state information feedback in a wireless communication system
KR20100138263A (ko) * 2009-06-24 2010-12-31 주식회사 팬택 적응형 순환 지연 다이버서티를 이용한 다중 포인트 협력형송수신 방법 및 그를 이용한 시스템측 장치와 수신장치, 협력형 기지국 세트 결정 방법
US8498579B2 (en) 2009-07-20 2013-07-30 Qualcomm Incorporated Channel reuse in communication systems
JP5361628B2 (ja) * 2009-09-15 2013-12-04 キヤノン株式会社 撮像装置及び撮像システム、それらの制御方法及びそのプログラム
US9231795B2 (en) 2010-01-18 2016-01-05 Samsung Electronics Co., Ltd. Communication apparatus and precoding method based on multiple cells and multiple users
KR101670946B1 (ko) * 2010-01-18 2016-10-31 삼성전자주식회사 다중 셀 다중 사용자 기반의 프리코딩 방법 및 통신 장치
WO2011093755A1 (en) * 2010-01-27 2011-08-04 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement in a wireless communication system
CN102237913B (zh) * 2010-04-28 2015-08-12 中兴通讯股份有限公司 天线数据发送模式的选择方法及装置
US8238198B2 (en) * 2010-12-30 2012-08-07 Wireless Seismic, Inc. Systems and methods for seismic data acquisition
CN102158310A (zh) * 2011-02-15 2011-08-17 中兴通讯股份有限公司 一种实现多小区预编码的方法和装置
US8886203B2 (en) * 2011-12-28 2014-11-11 Qualcomm Incorporated Dynamic channel reuse in multi-access communication systems
US9726748B2 (en) * 2012-09-21 2017-08-08 Qualcomm Incorporated Cyclic shift delay detection using signaling
US9036608B2 (en) * 2012-11-09 2015-05-19 Telefonaktiebolaget L M Ericsson (Publ) Adaptive transmission mode switching
WO2014089737A1 (en) * 2012-12-10 2014-06-19 Qualcomm Incorporated Timing advance selection for synchronized uplink transmission
CN104426829B (zh) * 2013-08-30 2018-03-16 华为技术有限公司 一种基站回传方法、相关设备及基站回传系统
KR102130294B1 (ko) * 2014-04-02 2020-07-08 삼성전자주식회사 무선 통신 시스템에서 단일 스트림 다중 빔 송수신 방법 및 장치
JP7190247B2 (ja) 2015-06-23 2022-12-15 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 送信方法、送信装置及び通信システム
US20180324801A1 (en) * 2017-05-02 2018-11-08 Qualcomm Incorporated Access point managed channel correlation for mu-mimo

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JP3029576B2 (ja) * 1996-10-08 2000-04-04 株式会社ワイ・アール・ピー移動通信基盤技術研究所 チャネル割当て方法および該方法を使用する通信網
US5867478A (en) * 1997-06-20 1999-02-02 Motorola, Inc. Synchronous coherent orthogonal frequency division multiplexing system, method, software and device
US6088416A (en) 1998-04-21 2000-07-11 Trw Inc. Method for reducing interference and increasing spectral efficiency
US6842487B1 (en) 2000-09-22 2005-01-11 Telefonaktiebolaget Lm Ericsson (Publ) Cyclic delay diversity for mitigating intersymbol interference in OFDM systems
US7224744B2 (en) 2002-04-22 2007-05-29 Regents Of The University Of Minnesota Space-time multipath coding schemes for wireless communication systems
KR100938091B1 (ko) * 2004-10-13 2010-01-21 삼성전자주식회사 직교주파수다중분할 이동통신시스템에서 블록 부호화기법과 순환 지연 다이버시티 기법을 사용하는 기지국송신 장치 및 방법
GB2423675B (en) * 2005-02-28 2009-08-19 King S College London Diversity transmitter and method
US7742389B2 (en) 2005-08-23 2010-06-22 Agere Systems Inc. Method and apparatus for improved short preamble formats in a multiple antenna communication system
US8520748B2 (en) * 2005-10-03 2013-08-27 Sharp Kabushiki Kaisha Transmitter, OFDM communication system, and transmission method
CN1992554A (zh) * 2005-12-29 2007-07-04 上海贝尔阿尔卡特股份有限公司 无线通信系统中干扰消除的方法和设备
CN101606339B (zh) * 2006-01-13 2013-10-16 Lg电子株式会社 使用基于反馈信息的天线选择实现发射分集和空间复用的方法和装置
JP4425880B2 (ja) 2006-01-18 2010-03-03 株式会社エヌ・ティ・ティ・ドコモ 通信装置、移動局及び方法
US20070270273A1 (en) * 2006-05-18 2007-11-22 Motorola, Inc. Method and apparatus for fast cell search
US20080095133A1 (en) * 2006-10-23 2008-04-24 Shu Kodo Method for reducing inter-cell interference in communications system

Also Published As

Publication number Publication date
JP5226786B2 (ja) 2013-07-03
WO2009017447A9 (en) 2010-02-04
WO2009017447A2 (en) 2009-02-05
US20090036150A1 (en) 2009-02-05
US8131228B2 (en) 2012-03-06
JP2010535450A (ja) 2010-11-18
CN101809888A (zh) 2010-08-18
WO2009017447A3 (en) 2009-04-23
EP2174429A2 (en) 2010-04-14
EP2174429B1 (en) 2016-04-13

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]