EP1938465A4 - Optimal weights for mmse space-time equalizer of multicode cdma system - Google Patents

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

Info

Publication number
EP1938465A4
EP1938465A4 EP06773184A EP06773184A EP1938465A4 EP 1938465 A4 EP1938465 A4 EP 1938465A4 EP 06773184 A EP06773184 A EP 06773184A EP 06773184 A EP06773184 A EP 06773184A EP 1938465 A4 EP1938465 A4 EP 1938465A4
Authority
EP
European Patent Office
Prior art keywords
cdma system
optimal weights
time equalizer
multicode cdma
mmse space
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP06773184A
Other languages
German (de)
French (fr)
Other versions
EP1938465A2 (en
Inventor
Byoung-Hoon Kim
Manuel Flury
Xiaoxia Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
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 EP1938465A2 publication Critical patent/EP1938465A2/en
Publication of EP1938465A4 publication Critical patent/EP1938465A4/en
Withdrawn legal-status Critical Current

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
    • H04B7/08—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
    • H04B7/005—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
    • 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)
EP06773184A 2005-11-21 2006-06-14 Optimal weights for mmse space-time equalizer of multicode cdma system Withdrawn EP1938465A4 (en)

Applications Claiming Priority (2)

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
PCT/US2006/023210 WO2007001867A2 (en) 2005-01-14 2006-06-14 Optimal weights for mmse space-time equalizer of multicode cdma system

Publications (2)

Publication Number Publication Date
EP1938465A2 EP1938465A2 (en) 2008-07-02
EP1938465A4 true EP1938465A4 (en) 2012-08-08

Family

ID=39469929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06773184A Withdrawn EP1938465A4 (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 (en)
JP (3) JP5745748B2 (en)
KR (1) KR101019397B1 (en)
CN (1) CN101310450B (en)
TW (2) TWI345904B (en)

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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020054621A1 (en) * 2000-10-11 2002-05-09 Mun Geon Kyeong Apparatus and method for very high performance space-time array reception processing using chip-level beamforming and fading rate adaptation
EP1265373A2 (en) * 2001-06-07 2002-12-11 Lg Electronics Inc. Signal processing method and apparatus in CDMA radio communication system
EP1471663A2 (en) * 2003-04-25 2004-10-27 Samsung Electronics Co., Ltd. Transmit diversity system, method and computer program product

Family Cites Families (7)

* 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
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020054621A1 (en) * 2000-10-11 2002-05-09 Mun Geon Kyeong Apparatus and method for very high performance space-time array reception processing using chip-level beamforming and fading rate adaptation
EP1265373A2 (en) * 2001-06-07 2002-12-11 Lg Electronics Inc. Signal processing method and apparatus in CDMA radio communication system
EP1471663A2 (en) * 2003-04-25 2004-10-27 Samsung Electronics Co., Ltd. Transmit diversity system, method and computer program product

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007001867A2 *

Also Published As

Publication number Publication date
JP2014053927A (en) 2014-03-20
TW201015928A (en) 2010-04-16
JP5745748B2 (en) 2015-07-08
JP2012095295A (en) 2012-05-17
TWI345904B (en) 2011-07-21
JP5722407B2 (en) 2015-05-20
KR20080069266A (en) 2008-07-25
CN101310450A (en) 2008-11-19
JP2009516986A (en) 2009-04-23
CN101310450B (en) 2016-03-09
KR101019397B1 (en) 2011-03-07
TW200721752A (en) 2007-06-01
EP1938465A2 (en) 2008-07-02
JP5512627B2 (en) 2014-06-04

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