DE602004003873D1 - Verfahren zur Optimierung der Sende-Kovarianz in drahtlosen Verbindungen mit mehreren Antennen - Google Patents

Verfahren zur Optimierung der Sende-Kovarianz in drahtlosen Verbindungen mit mehreren Antennen

Info

Publication number
DE602004003873D1
DE602004003873D1 DE602004003873T DE602004003873T DE602004003873D1 DE 602004003873 D1 DE602004003873 D1 DE 602004003873D1 DE 602004003873 T DE602004003873 T DE 602004003873T DE 602004003873 T DE602004003873 T DE 602004003873T DE 602004003873 D1 DE602004003873 D1 DE 602004003873D1
Authority
DE
Germany
Prior art keywords
wireless connections
multiple antennas
transmit covariance
optimizing transmit
optimizing
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DE602004003873T
Other languages
English (en)
Other versions
DE602004003873T2 (de
Inventor
Angel Lozano
Sergio Verdu
Antonia Tulino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia of America Corp
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of DE602004003873D1 publication Critical patent/DE602004003873D1/de
Application granted granted Critical
Publication of DE602004003873T2 publication Critical patent/DE602004003873T2/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • H04B7/0617—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 for beam forming
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/225—Calculation of statistics, e.g. average, variance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Transmitters (AREA)
DE602004003873T 2003-09-30 2004-09-16 Verfahren zur Optimierung der Sende-Kovarianz in drahtlosen Verbindungen mit mehreren Antennen Active DE602004003873T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US673224 2003-09-30
US10/673,224 US7194286B2 (en) 2003-09-30 2003-09-30 Method for optimizing the transmit signal in multiple antenna wireless links

Publications (2)

Publication Number Publication Date
DE602004003873D1 true DE602004003873D1 (de) 2007-02-08
DE602004003873T2 DE602004003873T2 (de) 2007-10-11

Family

ID=34313949

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004003873T Active DE602004003873T2 (de) 2003-09-30 2004-09-16 Verfahren zur Optimierung der Sende-Kovarianz in drahtlosen Verbindungen mit mehreren Antennen

Country Status (4)

Country Link
US (1) US7194286B2 (de)
EP (1) EP1521383B1 (de)
JP (1) JP2005110272A (de)
DE (1) DE602004003873T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8532588B1 (en) * 2002-08-13 2013-09-10 The Connectivity Patent Trust Apparatus for signal power loss reduction in RF communication systems
US7212788B2 (en) * 2002-08-13 2007-05-01 Atheros Communications, Inc. Method and apparatus for signal power loss reduction in RF communication systems
KR101457830B1 (ko) * 2005-09-29 2014-11-05 인터디지탈 테크날러지 코포레이션 Ｍｉｍｏ 빔형성 기반의 단일 반송파 주파수 분할 다중 접속 시스템
KR101241881B1 (ko) * 2005-10-26 2013-03-11 엘지전자 주식회사 다중 안테나 시스템에서의 시공간 부호화 방법
EP1804394A1 (de) * 2005-12-27 2007-07-04 Mitsubishi Electric Information Technology Centre Europe B.V. Verfahren und Vorrichtung zur Mitteilung zu einem zweiten Telekommunikationsgerät von Informationen in Bezug auf in einem ersten Telekommunikationsgerät empfangene Störungskomponenten
US7680177B2 (en) * 2006-03-13 2010-03-16 Broadcom Corporation Adaptive unbiased least square (LS) algorithm for mitigating interference for CDMA down link and other applications
KR101424035B1 (ko) 2009-01-13 2014-07-28 후아웨이 테크놀러지 컴퍼니 리미티드 정보 전송 및 획득을 위한 방법 및 장치
US9031600B2 (en) 2009-10-02 2015-05-12 Interdigital Patent Holdings, Inc. Method and apparatus for transmit power control for multiple antenna transmissions in the uplink
KR101968704B1 (ko) * 2012-03-13 2019-04-12 삼성전자주식회사 다중 안테나 통신 시스템에서의 전송 파워 결정 방법 및 장치

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08297849A (ja) * 1995-04-27 1996-11-12 Sony Corp スキュー制御装置
US6058105A (en) * 1997-09-26 2000-05-02 Lucent Technologies Inc. Multiple antenna communication system and method thereof
WO2000067508A1 (en) * 1999-05-01 2000-11-09 Nokia Corporation A method of directional radio communication
KR100609128B1 (ko) * 1999-07-12 2006-08-04 에스케이 텔레콤주식회사 이동 통신 시스템의 통화 품질 측정 장치 및 방법
US6707862B1 (en) * 2000-03-21 2004-03-16 Denso Corporation Predictive data rate control in wireless transmitters
JP4298932B2 (ja) * 2001-03-27 2009-07-22 富士通株式会社 送信ダイバーシティ通信装置
US7020110B2 (en) * 2002-01-08 2006-03-28 Qualcomm Incorporated Resource allocation for MIMO-OFDM communication systems

Also Published As

Publication number Publication date
EP1521383B1 (de) 2006-12-27
DE602004003873T2 (de) 2007-10-11
JP2005110272A (ja) 2005-04-21
US7194286B2 (en) 2007-03-20
US20050070323A1 (en) 2005-03-31
EP1521383A1 (de) 2005-04-06

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Legal Events

Date Code Title Description
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