UA94638C2 - Beamformoing to transmit diversity of space-time coded signals - Google Patents

Beamformoing to transmit diversity of space-time coded signals

Info

Publication number
UA94638C2
UA94638C2 UAA200907544A UAA200907544A UA94638C2 UA 94638 C2 UA94638 C2 UA 94638C2 UA A200907544 A UAA200907544 A UA A200907544A UA A200907544 A UAA200907544 A UA A200907544A UA 94638 C2 UA94638 C2 UA 94638C2
Authority
UA
Ukraine
Prior art keywords
space
time
antenna
phase
amplitude
Prior art date
Application number
UAA200907544A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Айман Фавзи НАДЖИБ
Original Assignee
Квелкомм Инкорпорейтед
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 Квелкомм Инкорпорейтед filed Critical Квелкомм Инкорпорейтед
Publication of UA94638C2 publication Critical patent/UA94638C2/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
    • H04B7/0615—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
    • H04B7/0667—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
    • 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
    • H04L1/0618—Space-time coding
    • H04L1/0625—Transmitter arrangements
    • 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
    • H04B7/0669—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 channel coding 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
    • H04B7/0613—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)

Abstract

Methods and apparatus for increasing diversity gain al a receiver by applying beamforming to transmit diversity j space-time coded signals. Transmit diversity can be provided at a signal source by space-time coding the signal. A transmit signal is space-time coded over a plurality of space-time antenna groups, with each space-time antenna group associated with a specific space-time code. The signal at each space-time antenna group is beamformed over the plurality of antenna in the space-time antenna I group. Each of the plurality of antenna in a space-time antenna group is weighted with a distinct weight, relative to the other antenna ) in the space-time group. Each weight can have a distinct amplitude, phase, or combination of amplitude and phase. The weights canbe static or dynamic. The dynamic weights can vary amplitude, phase, or a combination of amplitude and phase of each weight over time.
UAA200907544A 2006-12-19 2007-12-18 Beamformoing to transmit diversity of space-time coded signals UA94638C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87065306P 2006-12-19 2006-12-19

Publications (1)

Publication Number Publication Date
UA94638C2 true UA94638C2 (en) 2011-05-25

Family

ID=41221598

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA200907544A UA94638C2 (en) 2006-12-19 2007-12-18 Beamformoing to transmit diversity of space-time coded signals

Country Status (2)

Country Link
CN (2) CN106411382A (en)
UA (1) UA94638C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107733592B (en) 2016-08-10 2020-11-27 华为技术有限公司 Transmission scheme indication method, data transmission method, device and system
CN107733492B (en) * 2016-08-10 2020-09-04 华为技术有限公司 Data transmitting and receiving method and device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2399998B (en) * 2001-02-01 2005-04-13 Fujitsu Ltd Communications systems
US20030026348A1 (en) * 2001-06-07 2003-02-06 National University Of Singapore Wireless communication apparatus and method
KR100575930B1 (en) * 2003-05-16 2006-05-02 삼성전자주식회사 Method and apparatus for mode transition of transmit diversity in mobile communication system using transmit diversity
US20050042988A1 (en) * 2003-08-18 2005-02-24 Alcatel Combined open and closed loop transmission diversity system
CN100392998C (en) * 2005-07-06 2008-06-04 哈尔滨工业大学 Intelligent antenna downstream wave-packet formation method combined with space hour block coding

Also Published As

Publication number Publication date
CN101563861A (en) 2009-10-21
CN106411382A (en) 2017-02-15

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