TWI345904B - Optimal weights for mmse space-time equalizer of multicode cdma system - Google Patents

Optimal weights for mmse space-time equalizer of multicode cdma system Download PDF

Info

Publication number
TWI345904B
TWI345904B TW095121238A TW95121238A TWI345904B TW I345904 B TWI345904 B TW I345904B TW 095121238 A TW095121238 A TW 095121238A TW 95121238 A TW95121238 A TW 95121238A TW I345904 B TWI345904 B TW I345904B
Authority
TW
Taiwan
Prior art keywords
receiver
equalizer
antennas
code
vector
Prior art date
Application number
TW095121238A
Other languages
English (en)
Chinese (zh)
Other versions
TW200721752A (en
Inventor
Byoung-Hoon Kim
Manuel Flury
Xiaoxia Zhang
Original Assignee
Qualcomm 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
Priority claimed from US11/284,601 external-priority patent/US8780957B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW200721752A publication Critical patent/TW200721752A/zh
Application granted granted Critical
Publication of TWI345904B publication Critical patent/TWI345904B/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • 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
    • 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
    • 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
    • H04B7/0848—Joint weighting
    • H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
    • 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
    • H04B7/0891—Space-time diversity
    • H04B7/0897—Space-time diversity using beamforming per multi-path, e.g. to cope with different directions of arrival [DOA] at different multi-paths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)
TW095121238A 2005-11-21 2006-06-14 Optimal weights for mmse space-time equalizer of multicode cdma system TWI345904B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/284,601 US8780957B2 (en) 2005-01-14 2005-11-21 Optimal weights for MMSE space-time equalizer of multicode CDMA system

Publications (2)

Publication Number Publication Date
TW200721752A TW200721752A (en) 2007-06-01
TWI345904B true TWI345904B (en) 2011-07-21

Family

ID=39469929

Family Applications (2)

Application Number Title Priority Date Filing Date
TW095121238A TWI345904B (en) 2005-11-21 2006-06-14 Optimal weights for mmse space-time equalizer of multicode cdma system
TW098143726A TW201015928A (en) 2005-11-21 2006-06-14 Optimal weights for MMSE space-time equalizer of multicode CDMA system

Family Applications After (1)

Application Number Title Priority Date Filing Date
TW098143726A TW201015928A (en) 2005-11-21 2006-06-14 Optimal weights for MMSE space-time equalizer of multicode CDMA system

Country Status (5)

Country Link
EP (1) EP1938465A4 (ko)
JP (3) JP5745748B2 (ko)
KR (1) KR101019397B1 (ko)
CN (1) CN101310450B (ko)
TW (2) TWI345904B (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8923377B2 (en) 2011-05-13 2014-12-30 Nokia Corporation Methods and devices for receipt of imbalanced transmission signal
US9166855B2 (en) * 2013-03-11 2015-10-20 Sony Corporation MIMO communication method, MIMO transmitting device, and MIMO receiving device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5777910A (en) * 1996-11-19 1998-07-07 Thomson Multimedia S.A. Sparse equalization filter adaptive in two dimensions
US7095814B2 (en) * 2000-10-11 2006-08-22 Electronics And Telecommunications Research Institute Apparatus and method for very high performance space-time array reception processing using chip-level beamforming and fading rate adaptation
KR100803115B1 (ko) * 2001-06-07 2008-02-14 엘지전자 주식회사 적응 안테나 어레이가 구비된 wｃｄｍａ 시스템에서의 신호 처리 방법 이를 위한 시스템
US7359466B2 (en) * 2001-08-24 2008-04-15 Lucent Technologies Inc. Signal detection by a receiver in a multiple antenna time-dispersive system
US20030142762A1 (en) 2002-01-11 2003-07-31 Burke Joseph P. Wireless receiver method and apparatus using space-cover-time equalization
US7302238B2 (en) * 2003-04-25 2007-11-27 Samsung Electronics Co., Ltd. Transmit diversity system, method and computer program product
US7356073B2 (en) * 2003-09-10 2008-04-08 Nokia Corporation Method and apparatus providing an advanced MIMO receiver that includes a signal-plus-residual-interference (SPRI) detector
US7780886B2 (en) * 2003-10-21 2010-08-24 Certainteed Corporation Insulation product having directional facing layer thereon and method of making the same
EP1709745A4 (en) * 2004-01-30 2012-03-14 Univ Laval MULTI-USER ADAPTIVE NETWORK RECEIVER AND CORRESPONDING METHOD
US7324583B2 (en) * 2004-02-13 2008-01-29 Nokia Corporation Chip-level or symbol-level equalizer structure for multiple transmit and receiver antenna configurations

Also Published As

Publication number Publication date
JP2014053927A (ja) 2014-03-20
TW201015928A (en) 2010-04-16
JP5745748B2 (ja) 2015-07-08
JP2012095295A (ja) 2012-05-17
JP5722407B2 (ja) 2015-05-20
KR20080069266A (ko) 2008-07-25
CN101310450A (zh) 2008-11-19
JP2009516986A (ja) 2009-04-23
CN101310450B (zh) 2016-03-09
KR101019397B1 (ko) 2011-03-07
EP1938465A4 (en) 2012-08-08
TW200721752A (en) 2007-06-01
EP1938465A2 (en) 2008-07-02
JP5512627B2 (ja) 2014-06-04

Similar Documents

Publication Publication Date Title
US8780957B2 (en) Optimal weights for MMSE space-time equalizer of multicode CDMA system
US7864877B2 (en) Data transmission in communication system by disabling radiation patterns
CN104981987B (zh) 用于动态地更改下行链路mimo配置的装置和方法
RU2437225C2 (ru) Структура канала обратной связи для систем связи с множеством входов и множеством выходов
US7809072B2 (en) Transmitter and receiver for use in a relay network, and system and method for performing transmission and reception using the same
US7925225B2 (en) System and method for multiple input multiple output wireless transmission
UA75405C2 (en) Method for data transmission (variants); communication system with several inputs and outputs; base station (variants) and a terminal of the system
TW201138336A (en) Signal quality estimation from coupling matrix
KR20140085447A (ko) 다중코드 단일-입력 단일-출력 및 다중-입력 다중-출력 병렬 채널을 위한 서명 수열 선택, 시스템 값 비트 탑재 및 에너지 할당 방법 및 장치
US8553803B2 (en) Estimation of the signal to interference and noise ratio (SINR) in multiple input multiple output (MIMO) systems
Grant et al. Per-antenna-rate-control (PARC) in frequency selective fading with SIC-GRAKE receiver
TWI345904B (en) Optimal weights for mmse space-time equalizer of multicode cdma system
Rossi et al. Power randomization for iterative detection over random-access fading channels
US9054858B2 (en) Transmission and detection in multiple-antenna transmission systems
Reynolds et al. Interference suppression and diversity exploitation for multiantenna CDMA with ultra-low complexity receivers
US20040240378A1 (en) Method of spread space-spectrum multiple access
JP4709211B2 (ja) 送信システム、送信方法、受信システム及び受信方法
EP1502367B1 (en) Data transmission method, and system
Bastos et al. Performance of extended space-time coding techniques for MIMO MC-CDMA systems
RAVINDRABABU et al. Performance Improvement and Complexity Reduction in Multi-user Detection Using Partial Pre-coding Techniques
Hua et al. Multiplexing-diversity balanced cooperative wireless cellular networks based on Alamouti space time code for multimedia transmission
Sreesudha MIMOMIMO MIMO-CDMA TechnologiesCDMA Technologies CDMA TechnologiesCDMA Technologies CDMA TechnologiesCDMA Technologies CDMA TechnologiesCDMA Technologies CDMA Technologies CDMA Technologies CDMA
Sandhya A Study on Similarity Join in Heterogeneous Information Network Using Path Based Algorithm
Jiang Using the LAS Space-Time Spreading Codes to Achieve High Spectral Efficiency
Semenov SINR estimation for MIMO D-TxAA scheme

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees