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FI20030777A0 - Lähetysdiversiteetin kertaluvun ja lähetyshaarojen määritys - Google Patents

Lähetysdiversiteetin kertaluvun ja lähetyshaarojen määritys

Info

Publication number
FI20030777A0
FI20030777A0 FI20030777A FI20030777A FI20030777A0 FI 20030777 A0 FI20030777 A0 FI 20030777A0 FI 20030777 A FI20030777 A FI 20030777A FI 20030777 A FI20030777 A FI 20030777A FI 20030777 A0 FI20030777 A0 FI 20030777A0
Authority
FI
Finland
Prior art keywords
transmission
determination
order
branches
diversity
Prior art date
Application number
FI20030777A
Other languages
English (en)
Swedish (sv)
Inventor
Klaus Hugl
Juha Laurila
Werner Weichselberger
Original Assignee
Nokia 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 Nokia Corp filed Critical Nokia Corp
Priority to FI20030777A priority Critical patent/FI20030777A0/fi
Publication of FI20030777A0 publication Critical patent/FI20030777A0/fi
Priority to US10/732,854 priority patent/US20040235433A1/en

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
    • H04B7/0682—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 using phase diversity (e.g. phase sweeping)
    • 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
    • H04B7/0602—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 antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission 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
    • H04B7/10—Polarisation diversity; Directional 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
    • H04B7/12—Frequency diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
FI20030777A 2003-05-22 2003-05-22 Lähetysdiversiteetin kertaluvun ja lähetyshaarojen määritys FI20030777A0 (fi)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20030777A FI20030777A0 (fi) 2003-05-22 2003-05-22 Lähetysdiversiteetin kertaluvun ja lähetyshaarojen määritys
US10/732,854 US20040235433A1 (en) 2003-05-22 2003-12-11 Determining transmit diversity order and branches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20030777A FI20030777A0 (fi) 2003-05-22 2003-05-22 Lähetysdiversiteetin kertaluvun ja lähetyshaarojen määritys

Publications (1)

Publication Number Publication Date
FI20030777A0 true FI20030777A0 (fi) 2003-05-22

Family

ID=8566153

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20030777A FI20030777A0 (fi) 2003-05-22 2003-05-22 Lähetysdiversiteetin kertaluvun ja lähetyshaarojen määritys

Country Status (2)

Country Link
US (1) US20040235433A1 (fi)
FI (1) FI20030777A0 (fi)

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US7149483B1 (en) * 2003-10-28 2006-12-12 Magnolia Broadband Inc. Amplifying diversity signals using power amplifiers
US7362822B2 (en) * 2004-09-08 2008-04-22 Intel Corporation Recursive reduction of channel state feedback
US7492829B2 (en) * 2004-09-10 2009-02-17 Intel Corporation Closed loop feedback in MIMO systems
US7539253B2 (en) * 2004-09-10 2009-05-26 Intel Corporation Interpolation in channel state feedback
US7236748B2 (en) * 2004-09-30 2007-06-26 Intel Corporation Closed loop feedback in MIMO systems
US9002299B2 (en) * 2004-10-01 2015-04-07 Cisco Technology, Inc. Multiple antenna processing on transmit for wireless local area networks
US7660598B2 (en) * 2004-12-21 2010-02-09 Qualcomm, Incorporated Transmit power reduction for a wireless device with multiple transmit signal paths
CN1838653A (zh) * 2005-03-24 2006-09-27 松下电器产业株式会社 低功耗通信装置、低功耗多天线通信系统及其操作方法
KR100938525B1 (ko) * 2005-03-30 2010-01-25 후지쯔 가부시끼가이샤 이동 단말기, 무선 통신 장치 및 무선 통신 방법
CN101729118B (zh) * 2005-09-01 2016-03-23 施耐普特拉克股份有限公司 发送控制方法
EP1944893B1 (en) 2005-10-31 2020-01-01 Sharp Kabushiki Kaisha Radio transmitter, radio communication system, and radio transmission method
EP2034625B1 (en) * 2005-10-31 2015-01-07 Huawei Technologies Co., Ltd. Wireless transmitter
ATE554538T1 (de) * 2005-12-20 2012-05-15 Sharp Kk Sendesteuerverfahren, basisstation, mobileinheit und kommunikationssystem mit verzögerungsdiversität
US8165537B2 (en) * 2005-12-26 2012-04-24 Sharp Kabushiki Kaisha Wireless transmitter and wireless transmission method
US9590715B2 (en) * 2006-12-22 2017-03-07 Sony Corporation WCDMA power saving with transmit diversity
US8165543B2 (en) * 2007-04-25 2012-04-24 Marvell World Trade Ltd. Power amplifier adjustment for transmit beamforming in multi-antenna wireless systems
US20080280581A1 (en) * 2007-05-11 2008-11-13 Broadcom Corporation, A California Corporation RF receiver with adjustable antenna assembly
GB2460112A (en) * 2008-05-19 2009-11-25 Nokia Corp Controlling transmission diversity by delaying a signal on a second transmit path relative to a first transmit path
US10110288B2 (en) * 2009-11-04 2018-10-23 Atc Technologies, Llc Frequency division duplex (FDD) return link transmit diversity systems, methods and devices using forward link side information
US9203489B2 (en) 2010-05-05 2015-12-01 Google Technology Holdings LLC Method and precoder information feedback in multi-antenna wireless communication systems
US9407349B2 (en) * 2011-03-09 2016-08-02 Hitachi, Ltd. Polarization-angle-division diversity wireless transmitter, wireless receiver, and wireless communication system
US8831613B2 (en) * 2011-09-26 2014-09-09 Telefonaktiebolaget L M Ericsson (Publ) Radio base station; radio network controller and methods therein
US9813262B2 (en) 2012-12-03 2017-11-07 Google Technology Holdings LLC Method and apparatus for selectively transmitting data using spatial diversity
US9591508B2 (en) 2012-12-20 2017-03-07 Google Technology Holdings LLC Methods and apparatus for transmitting data between different peer-to-peer communication groups
US9979531B2 (en) 2013-01-03 2018-05-22 Google Technology Holdings LLC Method and apparatus for tuning a communication device for multi band operation
US10229697B2 (en) 2013-03-12 2019-03-12 Google Technology Holdings LLC Apparatus and method for beamforming to obtain voice and noise signals
US9386542B2 (en) 2013-09-19 2016-07-05 Google Technology Holdings, LLC Method and apparatus for estimating transmit power of a wireless device
WO2015064081A1 (ja) 2013-10-31 2015-05-07 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
US9549290B2 (en) 2013-12-19 2017-01-17 Google Technology Holdings LLC Method and apparatus for determining direction information for a wireless device
US9491007B2 (en) 2014-04-28 2016-11-08 Google Technology Holdings LLC Apparatus and method for antenna matching
US9478847B2 (en) 2014-06-02 2016-10-25 Google Technology Holdings LLC Antenna system and method of assembly for a wearable electronic device
KR101616636B1 (ko) * 2014-10-16 2016-04-28 영남대학교 산학협력단 듀얼 모드 빔포밍 방법 및 장치
US10644772B2 (en) * 2016-05-09 2020-05-05 Qualcomm Incorporated Techniques for determining a number of receive chains to enable for a channel
US12494949B2 (en) * 2021-08-10 2025-12-09 Telefonaktiebolaget Lm Ericsson (Publ) Node and method for adjusting channel coefficients of a wireless channel

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US6317411B1 (en) * 1999-02-22 2001-11-13 Motorola, Inc. Method and system for transmitting and receiving signals transmitted from an antenna array with transmit diversity techniques
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Also Published As

Publication number Publication date
US20040235433A1 (en) 2004-11-25

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