WO2004023696A3 - Scaling using gain factors for use in data detection for wireless code division multiple access communication systems - Google Patents
Scaling using gain factors for use in data detection for wireless code division multiple access communication systems Download PDFInfo
- Publication number
- WO2004023696A3 WO2004023696A3 PCT/US2003/021293 US0321293W WO2004023696A3 WO 2004023696 A3 WO2004023696 A3 WO 2004023696A3 US 0321293 W US0321293 W US 0321293W WO 2004023696 A3 WO2004023696 A3 WO 2004023696A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- multiple access
- division multiple
- code division
- scaling
- access communication
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7105—Joint detection techniques, e.g. linear detectors
- H04B1/71055—Joint detection techniques, e.g. linear detectors using minimum mean squared error [MMSE] detector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0204—Channel estimation of multiple channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0212—Channel estimation of impulse response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
Abstract
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020057000936A KR100808895B1 (en) | 2002-07-18 | 2003-07-09 | Scaling using gain factors for use in data detection for wireless code division multiple access communication systems |
CN038170698A CN1768485B (en) | 2002-07-18 | 2003-07-09 | Wireless spread spectrum user equipment, base station and method for recovering data in wireless communicaiton |
EP03794437A EP1523810B1 (en) | 2002-07-18 | 2003-07-09 | Scaling using gain factors for use in data detection for wireless code division multiple access communication systems |
AU2003298522A AU2003298522A1 (en) | 2002-07-18 | 2003-07-09 | Scaling using gain factors for use in data detection for wireless code division multiple access communication systems |
MXPA05000786A MXPA05000786A (en) | 2002-07-18 | 2003-07-09 | Scaling using gain factors for use in data detection for wireless code division multiple access communication systems. |
DE60320996T DE60320996D1 (en) | 2002-07-18 | 2003-07-09 | SCALING USING REINFORCING FACTORS FOR USE IN DATA DETECTION FOR WIRELESS CODE DISTRIBUTION VARIETY ACCESS COMMUNICATION SYSTEMS |
JP2004534242A JP2005533460A (en) | 2002-07-18 | 2003-07-09 | Scaling using gain factors for data detection for wireless code division multiple access communication systems |
CA002492677A CA2492677A1 (en) | 2002-07-18 | 2003-07-09 | Scaling using gain factors for use in data detection for wireless code division multiple access communication systems |
NO20050601A NO20050601L (en) | 2002-07-18 | 2005-02-03 | Scaling using amplification factors for use in data detection in wireless code-shared multiple-access communication systems |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39682302P | 2002-07-18 | 2002-07-18 | |
US60/396,823 | 2002-07-18 | ||
US10/327,299 | 2002-12-20 | ||
US10/327,299 US6928104B2 (en) | 2002-07-18 | 2002-12-20 | Scaling using gain factors for use in data detection for wireless code division multiple access communication systems |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004023696A2 WO2004023696A2 (en) | 2004-03-18 |
WO2004023696A3 true WO2004023696A3 (en) | 2004-07-01 |
Family
ID=30448158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2003/021293 WO2004023696A2 (en) | 2002-07-18 | 2003-07-09 | Scaling using gain factors for use in data detection for wireless code division multiple access communication systems |
Country Status (14)
Country | Link |
---|---|
US (5) | US6928104B2 (en) |
EP (1) | EP1523810B1 (en) |
JP (2) | JP2005533460A (en) |
KR (2) | KR100808895B1 (en) |
CN (1) | CN1768485B (en) |
AT (1) | ATE395753T1 (en) |
AU (1) | AU2003298522A1 (en) |
CA (1) | CA2492677A1 (en) |
DE (1) | DE60320996D1 (en) |
ES (1) | ES2306915T3 (en) |
MX (1) | MXPA05000786A (en) |
NO (1) | NO20050601L (en) |
TW (3) | TWI237456B (en) |
WO (1) | WO2004023696A2 (en) |
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US6928104B2 (en) * | 2002-07-18 | 2005-08-09 | Interdigital Technology Corporation | Scaling using gain factors for use in data detection for wireless code division multiple access communication systems |
US20060013181A1 (en) * | 2002-07-31 | 2006-01-19 | Victor Stolpman | Apparatus, and associated method, for allocating communications in a multi-channel communication system |
US7257170B2 (en) * | 2002-08-21 | 2007-08-14 | Texas Instruments Incorporated | Channel norm-based ordering and whitened decoding for MIMO communication systems |
US7715508B2 (en) | 2005-11-15 | 2010-05-11 | Tensorcomm, Incorporated | Iterative interference cancellation using mixed feedback weights and stabilizing step sizes |
US8005128B1 (en) * | 2003-09-23 | 2011-08-23 | Rambus Inc. | Methods for estimation and interference cancellation for signal processing |
US7340013B2 (en) * | 2002-10-24 | 2008-03-04 | Agere Systems Inc. | Soft sample scaling in a turbo decoder |
US7161973B2 (en) * | 2002-12-17 | 2007-01-09 | Sbc Properties, L.P. | Pilot aided adaptive minimum mean square interference cancellation and detection |
US6937644B2 (en) * | 2003-01-10 | 2005-08-30 | Interdigital Technology Corporation | Generalized two-stage data estimation |
US7627021B2 (en) * | 2003-01-30 | 2009-12-01 | The Mitre Corporation | Interference canceling CDMA mobile station receiver |
US7099378B2 (en) * | 2003-01-30 | 2006-08-29 | The Mitre Corporation | Sub-symbol parallel interference cancellation |
GB2404822B (en) * | 2003-08-07 | 2007-07-11 | Ipwireless Inc | Method and arrangement for noise variance and sir estimation |
US7437135B2 (en) * | 2003-10-30 | 2008-10-14 | Interdigital Technology Corporation | Joint channel equalizer interference canceller advanced receiver |
US7627059B2 (en) * | 2005-04-05 | 2009-12-01 | Samsung Electronics Co., Ltd. | Method of robust timing detection and carrier frequency offset estimation for OFDM systems |
US7711075B2 (en) | 2005-11-15 | 2010-05-04 | Tensorcomm Incorporated | Iterative interference cancellation using mixed feedback weights and stabilizing step sizes |
US7826516B2 (en) | 2005-11-15 | 2010-11-02 | Rambus Inc. | Iterative interference canceller for wireless multiple-access systems with multiple receive antennas |
US7991088B2 (en) | 2005-11-15 | 2011-08-02 | Tommy Guess | Iterative interference cancellation using mixed feedback weights and stabilizing step sizes |
US7616699B2 (en) * | 2005-04-12 | 2009-11-10 | Samsung Electronics Co., Ltd. | Method of soft bit metric calculation with direct matrix inversion MIMO detection |
KR100724986B1 (en) | 2005-06-28 | 2007-06-04 | 삼성전자주식회사 | Method and apparatus for deciding a scaling factor for turbo decoder input data in cdma system |
US20070076791A1 (en) * | 2005-07-26 | 2007-04-05 | Interdigital Technology Corporation | Approximate cholesky decomposition-based block linear equalizer |
KR100651913B1 (en) * | 2005-08-26 | 2006-12-01 | 엘지전자 주식회사 | Equalizer in receiver of orthogonal frequency division multiplexed signals |
US7702048B2 (en) * | 2005-11-15 | 2010-04-20 | Tensorcomm, Incorporated | Iterative interference cancellation using mixed feedback weights and stabilizing step sizes |
US20070110135A1 (en) * | 2005-11-15 | 2007-05-17 | Tommy Guess | Iterative interference cancellation for MIMO-OFDM receivers |
US7623602B2 (en) * | 2005-11-15 | 2009-11-24 | Tensorcomm, Inc. | Iterative interference canceller for wireless multiple-access systems employing closed loop transmit diversity |
US7751506B2 (en) | 2005-12-01 | 2010-07-06 | Samsung Electronics Co., Ltd. | Method for the soft bit metric calculation with linear MIMO detection for LDPC codes |
EP1988645A4 (en) | 2006-02-01 | 2014-01-15 | Nec Corp | Equalization device and equalization method |
WO2007127911A2 (en) * | 2006-04-28 | 2007-11-08 | University Of Pittsburgh Of The Commonwealth System Of Higher Education | Determining the three-dimensional read accuracy of an rfid tag using a power scaling factor |
US7664512B2 (en) * | 2006-08-10 | 2010-02-16 | L3 Communications Integrated Systems, L.P. | Datalink throughput reduction via energy detection |
US7924948B2 (en) * | 2006-09-29 | 2011-04-12 | Mediatek Inc. | Pre-scaling of initial channel estimates in joint detection |
US8781043B2 (en) * | 2006-11-15 | 2014-07-15 | Qualcomm Incorporated | Successive equalization and cancellation and successive mini multi-user detection for wireless communication |
US7974334B2 (en) * | 2007-01-30 | 2011-07-05 | Texas Instruments Incorporated | Systems and methods for hybrid-MIMO equalization |
US20080181324A1 (en) * | 2007-01-30 | 2008-07-31 | Texas Instruments Incorporated | Systems and methods for scaling to equalize noise variance |
KR100969781B1 (en) * | 2007-01-31 | 2010-07-13 | 삼성전자주식회사 | Apparatus and method for determining scaling factor in communication system |
CN102668611A (en) | 2009-11-27 | 2012-09-12 | 高通股份有限公司 | Interference cancellation for non-orthogonal channel sets |
US8942331B2 (en) * | 2012-07-12 | 2015-01-27 | Qualcomm Incorporated | Apparatus and method for improving the performance of a linear equalizer with multiple receive antennas |
EP3270554B1 (en) * | 2016-07-12 | 2019-03-20 | Mitsubishi Electric R&D Centre Europe B.V. | Channel estimation with coloured noise |
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US5583886A (en) * | 1992-12-03 | 1996-12-10 | Motorola, Inc. | Method for determining a plurality of channel responses and modifying a received signal therewith |
US5737327A (en) * | 1996-03-29 | 1998-04-07 | Motorola, Inc. | Method and apparatus for demodulation and power control bit detection in a spread spectrum communication system |
US6085104A (en) * | 1998-03-25 | 2000-07-04 | Sharp Laboratories Of America, Inc. | Pilot aided, time-varying finite impulse response, adaptive channel matching receiving system and method |
US6151358A (en) * | 1999-08-11 | 2000-11-21 | Motorola, Inc. | Method and apparatus, and computer program for producing filter coefficients for equalizers |
US6175588B1 (en) * | 1997-12-30 | 2001-01-16 | Motorola, Inc. | Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system |
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KR100194956B1 (en) | 1996-08-21 | 1999-06-15 | 정선종 | Adaptive Power Control Method for Code Division Multiple Access Mobile Radiotelephone System |
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US6928104B2 (en) * | 2002-07-18 | 2005-08-09 | Interdigital Technology Corporation | Scaling using gain factors for use in data detection for wireless code division multiple access communication systems |
-
2002
- 2002-12-20 US US10/327,299 patent/US6928104B2/en not_active Expired - Fee Related
-
2003
- 2003-07-09 DE DE60320996T patent/DE60320996D1/en not_active Expired - Lifetime
- 2003-07-09 AU AU2003298522A patent/AU2003298522A1/en not_active Abandoned
- 2003-07-09 CA CA002492677A patent/CA2492677A1/en not_active Abandoned
- 2003-07-09 KR KR1020057000936A patent/KR100808895B1/en not_active IP Right Cessation
- 2003-07-09 KR KR1020057017512A patent/KR20050098026A/en active IP Right Grant
- 2003-07-09 EP EP03794437A patent/EP1523810B1/en not_active Expired - Lifetime
- 2003-07-09 JP JP2004534242A patent/JP2005533460A/en not_active Ceased
- 2003-07-09 WO PCT/US2003/021293 patent/WO2004023696A2/en active Application Filing
- 2003-07-09 MX MXPA05000786A patent/MXPA05000786A/en active IP Right Grant
- 2003-07-09 ES ES03794437T patent/ES2306915T3/en not_active Expired - Lifetime
- 2003-07-09 AT AT03794437T patent/ATE395753T1/en not_active IP Right Cessation
- 2003-07-09 CN CN038170698A patent/CN1768485B/en not_active Expired - Fee Related
- 2003-07-14 TW TW092119189A patent/TWI237456B/en not_active IP Right Cessation
- 2003-07-14 TW TW093105622A patent/TW200501622A/en unknown
- 2003-07-14 TW TW095126608A patent/TWI320640B/en not_active IP Right Cessation
-
2005
- 2005-02-03 NO NO20050601A patent/NO20050601L/en not_active Application Discontinuation
- 2005-07-06 US US11/175,662 patent/US7042929B2/en not_active Expired - Fee Related
- 2005-08-22 JP JP2005240061A patent/JP4385015B2/en not_active Expired - Fee Related
-
2006
- 2006-04-21 US US11/408,411 patent/US7313172B2/en not_active Expired - Fee Related
-
2007
- 2007-12-21 US US11/962,371 patent/US7583722B2/en not_active Expired - Fee Related
-
2009
- 2009-08-28 US US12/549,912 patent/US8189648B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5583886A (en) * | 1992-12-03 | 1996-12-10 | Motorola, Inc. | Method for determining a plurality of channel responses and modifying a received signal therewith |
US5737327A (en) * | 1996-03-29 | 1998-04-07 | Motorola, Inc. | Method and apparatus for demodulation and power control bit detection in a spread spectrum communication system |
US6175588B1 (en) * | 1997-12-30 | 2001-01-16 | Motorola, Inc. | Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system |
US6085104A (en) * | 1998-03-25 | 2000-07-04 | Sharp Laboratories Of America, Inc. | Pilot aided, time-varying finite impulse response, adaptive channel matching receiving system and method |
US6151358A (en) * | 1999-08-11 | 2000-11-21 | Motorola, Inc. | Method and apparatus, and computer program for producing filter coefficients for equalizers |
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