WO1999009674A2 - Method and apparatus for interference cancellation for a high data rate user in a cdma system - Google Patents
Method and apparatus for interference cancellation for a high data rate user in a cdma system Download PDFInfo
- Publication number
- WO1999009674A2 WO1999009674A2 PCT/US1998/016815 US9816815W WO9909674A2 WO 1999009674 A2 WO1999009674 A2 WO 1999009674A2 US 9816815 W US9816815 W US 9816815W WO 9909674 A2 WO9909674 A2 WO 9909674A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- station
- traffic channel
- estimated
- forming
- 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
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7107—Subtractive interference cancellation
-
- 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
- H04B1/7107—Subtractive interference cancellation
- H04B1/71075—Parallel interference cancellation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/004—Orthogonal
- H04J13/0048—Walsh
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU89055/98A AU8905598A (en) | 1997-08-13 | 1998-08-13 | Method and apparatus for interference cancellation for a high data rate user in a cdma system |
US09/371,233 US6473417B1 (en) | 1997-08-13 | 1999-08-10 | Method and apparatus for interference cancellation for a high data rate user in a CDMA system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5554997P | 1997-08-13 | 1997-08-13 | |
US60/055,549 | 1997-08-13 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/371,233 Continuation US6473417B1 (en) | 1997-08-13 | 1999-08-10 | Method and apparatus for interference cancellation for a high data rate user in a CDMA system |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999009674A2 true WO1999009674A2 (en) | 1999-02-25 |
WO1999009674A3 WO1999009674A3 (en) | 1999-07-29 |
Family
ID=21998597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/016815 WO1999009674A2 (en) | 1997-08-13 | 1998-08-13 | Method and apparatus for interference cancellation for a high data rate user in a cdma system |
Country Status (3)
Country | Link |
---|---|
US (1) | US6473417B1 (en) |
AU (1) | AU8905598A (en) |
WO (1) | WO1999009674A2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1098452A1 (en) * | 1999-11-04 | 2001-05-09 | Alcatel | Method of increasing the capacity of a CDMA network, and associated units |
DE10026615A1 (en) * | 2000-05-19 | 2001-12-13 | Systemonic Ag | Method and arrangement for receiving CDMA signals |
WO2002032004A1 (en) * | 2000-10-12 | 2002-04-18 | Matsushita Electric Industrial Co., Ltd. | Interference cancellation system in a cdma receiver and method for cancelling interference |
EP1274177A2 (en) * | 2001-03-30 | 2003-01-08 | Envoy Networks, Inc. | Method and apparatus for regenerative based interference cancellation within a communication system |
US9344220B2 (en) | 1999-04-28 | 2016-05-17 | Ipr Licensing, Inc. | Forward error correction scheme for high rate data exchange in a wireless system |
EP2204916B1 (en) * | 2004-12-23 | 2019-07-24 | Qualcomm Incorporated | Channel estimation for interference cancellation |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI20000284A (en) * | 2000-02-10 | 2001-08-11 | Nokia Networks Oy | Interference cancellation method and receiver |
JP3793687B2 (en) * | 2000-05-12 | 2006-07-05 | 株式会社日立コミュニケーションテクノロジー | Radio base station and mobile communication system |
US7315567B2 (en) * | 2000-07-10 | 2008-01-01 | Motorola, Inc. | Method and apparatus for partial interference cancellation in a communication system |
US6977974B1 (en) * | 2000-11-20 | 2005-12-20 | At&T Corp. | De-modulation of MOK(M-ary orthogonal modulation) |
US6704376B2 (en) * | 2002-01-23 | 2004-03-09 | Bae Systems Information And Electronic Systems Integration Inc. | Power and confidence ordered low complexity soft turbomud with voting system |
WO2004095713A2 (en) * | 2003-04-14 | 2004-11-04 | Bae Systems Information And Electronic Systems Integration Inc. | Joint symbol, amplitude, and rate estimator |
US7161988B2 (en) * | 2004-04-12 | 2007-01-09 | The Directv Group, Inc. | Method and apparatus for minimizing co-channel interference |
US7672285B2 (en) * | 2004-06-28 | 2010-03-02 | Dtvg Licensing, Inc. | Method and apparatus for minimizing co-channel interference by scrambling |
US8213553B2 (en) * | 2004-04-12 | 2012-07-03 | The Directv Group, Inc. | Method and apparatus for identifying co-channel interference |
JP2007533263A (en) * | 2004-04-12 | 2007-11-15 | ザ・ディレクティービー・グループ・インコーポレイテッド | Shift channel characteristics to mitigate co-channel interference |
EP1929683B1 (en) * | 2005-08-26 | 2011-06-22 | The DIRECTV Group, Inc. | Method and apparatus for determining scrambling codes for signal transmission |
DE102005041503A1 (en) * | 2005-09-01 | 2007-04-05 | Atmel Germany Gmbh | Method and device for detecting the occupation of an adjacent channel with a signal |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5136612A (en) * | 1990-12-31 | 1992-08-04 | At&T Bell Laboratories | Method and apparatus for reducing effects of multiple access interference in a radio receiver in a code division multiple access communication system |
US5396516A (en) * | 1993-02-22 | 1995-03-07 | Qualcomm Incorporated | Method and system for the dynamic modification of control paremeters in a transmitter power control system |
WO1995022818A1 (en) * | 1994-02-17 | 1995-08-24 | Motorola Inc. | Method and apparatus for group encoding signals |
US5623485A (en) * | 1995-02-21 | 1997-04-22 | Lucent Technologies Inc. | Dual mode code division multiple access communication system and method |
US6175587B1 (en) * | 1997-12-30 | 2001-01-16 | Motorola, Inc. | Communication device and method for interference suppression in a DS-CDMA system |
-
1998
- 1998-08-13 AU AU89055/98A patent/AU8905598A/en not_active Abandoned
- 1998-08-13 WO PCT/US1998/016815 patent/WO1999009674A2/en active Application Filing
-
1999
- 1999-08-10 US US09/371,233 patent/US6473417B1/en not_active Expired - Lifetime
Non-Patent Citations (4)
Title |
---|
HAGENHAUER J.: "Forward error correcting for CDMA Systems " IEEE 4TH INTERNATONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES AND APPLICATIONS PROCEEDINGS 1996, vol. 2, 22 - 25 September 1996, pages 566-569, XP002102750 * |
HERZOG R ET AL: "ITERATIVE DECODING AND DESPREADING IMPROVES CDMA-SYSTEMS USING M -ARY ORTHOGONAL MODULATION AND FEC" 1997 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, MONTREAL, JUNE 8 - 12, 1997, vol. 2, 8 June 1997, pages 909-913, XP000742070 INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS * |
HERZOG R.: "Interference cancelation for a high data rate user in coded CDMA Systems" IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS 1998. ICC98, vol. 2, 7 - 11 June 1998, pages 709-713, XP002102751 * |
Y. SANADA, QIANG WANG: "A co-channel interference cancellation technique using orthogonal convolutional codes" IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 44, May 1996, pages 549-556, XP002103169 * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9344220B2 (en) | 1999-04-28 | 2016-05-17 | Ipr Licensing, Inc. | Forward error correction scheme for high rate data exchange in a wireless system |
EP1098452A1 (en) * | 1999-11-04 | 2001-05-09 | Alcatel | Method of increasing the capacity of a CDMA network, and associated units |
FR2800944A1 (en) * | 1999-11-04 | 2001-05-11 | Cit Alcatel | METHOD FOR INCREASING THE CAPACITY OF A CDMA NETWORK, AND ASSOCIATED UNITS |
US6459694B1 (en) | 1999-11-04 | 2002-10-01 | Alcatel | Method of increasing the capacity of a CDMA network, and associated units |
DE10026615A1 (en) * | 2000-05-19 | 2001-12-13 | Systemonic Ag | Method and arrangement for receiving CDMA signals |
DE10026615B4 (en) * | 2000-05-19 | 2004-12-23 | Systemonic Ag | Method and arrangement for receiving CDMA signals |
WO2002032004A1 (en) * | 2000-10-12 | 2002-04-18 | Matsushita Electric Industrial Co., Ltd. | Interference cancellation system in a cdma receiver and method for cancelling interference |
EP1274177A2 (en) * | 2001-03-30 | 2003-01-08 | Envoy Networks, Inc. | Method and apparatus for regenerative based interference cancellation within a communication system |
EP1274177A3 (en) * | 2001-03-30 | 2004-02-11 | Envoy Networks, Inc. | Method and apparatus for regenerative based interference cancellation within a communication system |
US7697594B2 (en) | 2001-03-30 | 2010-04-13 | Texas Instruments Incorporated | Method and apparatus for regenerative based interference cancellation within a communication system |
EP2204916B1 (en) * | 2004-12-23 | 2019-07-24 | Qualcomm Incorporated | Channel estimation for interference cancellation |
Also Published As
Publication number | Publication date |
---|---|
WO1999009674A3 (en) | 1999-07-29 |
US6473417B1 (en) | 2002-10-29 |
AU8905598A (en) | 1999-03-08 |
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