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TW200703965A - Method and apparatus for reducing antenna correlation - Google Patents

Method and apparatus for reducing antenna correlation

Info

Publication number
TW200703965A
TW200703965A TW095104281A TW95104281A TW200703965A TW 200703965 A TW200703965 A TW 200703965A TW 095104281 A TW095104281 A TW 095104281A TW 95104281 A TW95104281 A TW 95104281A TW 200703965 A TW200703965 A TW 200703965A
Authority
TW
Taiwan
Prior art keywords
beams
antennas
generated
correlation
reducing antenna
Prior art date
Application number
TW095104281A
Other languages
English (en)
Inventor
Fatih M Ozluturk
Philip J Pietraski
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 TW200703965A publication Critical patent/TW200703965A/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
    • H04B7/10—Polarisation diversity; Directional diversity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • 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
    • 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
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit 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
    • H04B7/0613—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
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • 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
    • H04B7/0658—Feedback reduction
    • H04B7/066—Combined feedback for a number of channels, e.g. over several subcarriers like in orthogonal frequency division multiplexing [OFDM]
    • 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
    • H04B7/0697—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 spatial multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
TW095104281A 2004-08-12 2005-08-12 Method and apparatus for reducing antenna correlation TW200703965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60167404P 2004-08-12 2004-08-12

Publications (1)

Publication Number Publication Date
TW200703965A true TW200703965A (en) 2007-01-16

Family

ID=35839984

Family Applications (2)

Application Number Title Priority Date Filing Date
TW094127661A TWI267259B (en) 2004-08-12 2005-08-12 Method and apparatus for reducing antenna correlation
TW095104281A TW200703965A (en) 2004-08-12 2005-08-12 Method and apparatus for reducing antenna correlation

Family Applications Before (1)

Application Number Title Priority Date Filing Date
TW094127661A TWI267259B (en) 2004-08-12 2005-08-12 Method and apparatus for reducing antenna correlation

Country Status (3)

Country Link
US (1) US7599668B2 (zh)
TW (2) TWI267259B (zh)
WO (1) WO2006017850A2 (zh)

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TWI572092B (zh) * 2015-06-23 2017-02-21 啟碁科技股份有限公司 無線通訊裝置與控制天線陣列的方法

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US7301493B1 (en) * 2005-11-21 2007-11-27 The United States Of America As Represented By The Secretary Of The Army Meta-materials based upon surface coupling phenomena to achieve one-way mirror for various electro-magnetic signals
WO2007067107A1 (en) * 2005-12-08 2007-06-14 Telefonaktiebolaget Lm Ericsson (Publ) A wireless communication mimo system with repeaters
US7912057B2 (en) 2007-01-12 2011-03-22 Wi-Lan Inc. Convergence sublayer for use in a wireless broadcasting system
GB0700801D0 (en) * 2007-01-16 2007-02-21 Nortel Networks Ltd Shared radio backhaul system
US8548520B2 (en) 2007-01-26 2013-10-01 Wi-Lan Inc. Multiple network access system and method
CN101316130B (zh) * 2007-06-01 2014-06-11 中国移动通信集团公司 闭环模式下共用天线系统和方法
FR2919132B1 (fr) * 2007-07-20 2011-04-29 Eads Secure Networks Emission de signal par plusieurs antennes
US8750913B2 (en) * 2011-12-13 2014-06-10 Telefonaktiebolaget L M Ericsson (Publ) Asymmetric resource sharing using stale feedback
EP2832011A1 (en) * 2012-03-30 2015-02-04 Nokia Solutions and Networks Oy Feedback methodology for per-user elevation mimo
US9832628B2 (en) 2012-12-31 2017-11-28 Elwha, Llc Cost-effective mobile connectivity protocols
US9451394B2 (en) * 2012-12-31 2016-09-20 Elwha Llc Cost-effective mobile connectivity protocols
US9980114B2 (en) 2013-03-15 2018-05-22 Elwha Llc Systems and methods for communication management
US9713013B2 (en) 2013-03-15 2017-07-18 Elwha Llc Protocols for providing wireless communications connectivity maps
US9635605B2 (en) 2013-03-15 2017-04-25 Elwha Llc Protocols for facilitating broader access in wireless communications
US9781664B2 (en) 2012-12-31 2017-10-03 Elwha Llc Cost-effective mobile connectivity protocols
US9876762B2 (en) 2012-12-31 2018-01-23 Elwha Llc Cost-effective mobile connectivity protocols
US9596584B2 (en) 2013-03-15 2017-03-14 Elwha Llc Protocols for facilitating broader access in wireless communications by conditionally authorizing a charge to an account of a third party
US9866706B2 (en) 2013-03-15 2018-01-09 Elwha Llc Protocols for facilitating broader access in wireless communications
US9706382B2 (en) 2013-03-15 2017-07-11 Elwha Llc Protocols for allocating communication services cost in wireless communications
US9843917B2 (en) 2013-03-15 2017-12-12 Elwha, Llc Protocols for facilitating charge-authorized connectivity in wireless communications
US9706060B2 (en) 2013-03-15 2017-07-11 Elwha Llc Protocols for facilitating broader access in wireless communications
US9807582B2 (en) 2013-03-15 2017-10-31 Elwha Llc Protocols for facilitating broader access in wireless communications
US9813887B2 (en) 2013-03-15 2017-11-07 Elwha Llc Protocols for facilitating broader access in wireless communications responsive to charge authorization statuses
US9693214B2 (en) 2013-03-15 2017-06-27 Elwha Llc Protocols for facilitating broader access in wireless communications
JP2016039570A (ja) * 2014-08-08 2016-03-22 キヤノン株式会社 通信装置およびその制御方法、通信システム
JP2019050439A (ja) * 2016-01-22 2019-03-28 シャープ株式会社 無線制御局装置および制御方法
CN106549697B (zh) * 2017-01-12 2020-12-01 重庆邮电大学 协作通信系统中联合波束赋形和天线选择的发射方法
US10911127B2 (en) 2018-01-23 2021-02-02 Telefonaktiebolaget Lm Ericsson (Publ) Beam management of a radio transceiver device
US11997661B2 (en) * 2018-08-09 2024-05-28 Telefonaktiebolaget Lm Ericsson (Publ) Transmitting and receiving signals using multiple carriers from multiple antenna
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI572092B (zh) * 2015-06-23 2017-02-21 啟碁科技股份有限公司 無線通訊裝置與控制天線陣列的方法

Also Published As

Publication number Publication date
WO2006017850A3 (en) 2007-02-01
TW200616364A (en) 2006-05-16
TWI267259B (en) 2006-11-21
US20060035605A1 (en) 2006-02-16
US7599668B2 (en) 2009-10-06
WO2006017850A2 (en) 2006-02-16

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