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

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Publication number
TWI345904B
TWI345904B TW95121238A TW95121238A TWI345904B TW I345904 B TWI345904 B TW I345904B TW 95121238 A TW95121238 A TW 95121238A TW 95121238 A TW95121238 A TW 95121238A TW I345904 B TWI345904 B TW I345904B
Authority
TW
Taiwan
Prior art keywords
cdma system
optimal weights
time equalizer
multicode cdma
mmse space
Prior art date
Application number
TW95121238A
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 to US11/284,601 priority Critical patent/US8780957B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW200721752A publication Critical patent/TW200721752A/en
Application granted granted Critical
Publication of TWI345904B publication Critical patent/TWI345904B/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837Diversity 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
    • H04B7/0842Weighted combining
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837Diversity 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
    • H04B7/0842Weighted combining
    • H04B7/0848Joint weighting
    • H04B7/0854Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0891Space-time diversity
    • H04B7/0897Space-time diversity using beamforming per multi-path, e.g. to cope with different directions of arrival [DOA] at different multi-paths
TW95121238A 2005-01-14 2006-06-14 Optimal weights for mmse space-time equalizer of multicode cdma system TWI345904B (en)

Priority Applications (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
TW95121238A TWI345904B (en) 2005-01-14 2006-06-14 Optimal weights for mmse space-time equalizer of multicode cdma system
TW98143726A TW201015928A (en) 2005-01-14 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
TW98143726A TW201015928A (en) 2005-01-14 2006-06-14 Optimal weights for MMSE space-time equalizer of multicode CDMA system

Country Status (5)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5206559A (en) 1989-08-04 1993-04-27 Kabushiki Kaisha Toshiba Cathode ray tube which improves deflection aberration
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 (8)

* 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
KR100803115B1 (en) * 2001-06-07 2008-02-14 엘지전자 주식회사 Method for processing signal in WCDMA with adaptive antenna array, System for the same
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
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 array receiver and 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
TW200721752A (en) 2007-06-01
JP5722407B2 (en) 2015-05-20
EP1938465A4 (en) 2012-08-08
TW201015928A (en) 2010-04-16
EP1938465A2 (en) 2008-07-02
JP2014053927A (en) 2014-03-20
JP5745748B2 (en) 2015-07-08
CN101310450A (en) 2008-11-19
JP2012095295A (en) 2012-05-17
JP2009516986A (en) 2009-04-23
KR101019397B1 (en) 2011-03-07
KR20080069266A (en) 2008-07-25
CN101310450B (en) 2016-03-09
JP5512627B2 (en) 2014-06-04

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MM4A Annulment or lapse of patent due to non-payment of fees