DE69625816D1 - Verfahren und gerät zum orthogonalisieren von cdma-signalen - Google Patents
Verfahren und gerät zum orthogonalisieren von cdma-signalenInfo
- Publication number
- DE69625816D1 DE69625816D1 DE69625816T DE69625816T DE69625816D1 DE 69625816 D1 DE69625816 D1 DE 69625816D1 DE 69625816 T DE69625816 T DE 69625816T DE 69625816 T DE69625816 T DE 69625816T DE 69625816 D1 DE69625816 D1 DE 69625816D1
- Authority
- DE
- Germany
- Prior art keywords
- orthogonalizing
- cdma signals
- cdma
- signals
- orthogonalizing cdma
- 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.)
- Expired - Lifetime
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
- H04B1/7107—Subtractive interference cancellation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/10—Code generation
- H04J13/12—Generation of orthogonal codes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/507,714 US5615209A (en) | 1995-07-26 | 1995-07-26 | Method and apparatus for CDMA signal orthogonalization |
PCT/US1996/011735 WO1997005708A1 (en) | 1995-07-26 | 1996-07-17 | Method and apparatus for cdma signal orthogonalization |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69625816D1 true DE69625816D1 (de) | 2003-02-20 |
DE69625816T2 DE69625816T2 (de) | 2003-08-28 |
Family
ID=24019823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69625816T Expired - Lifetime DE69625816T2 (de) | 1995-07-26 | 1996-07-17 | Verfahren und gerät zum orthogonalisieren von cdma-signalen |
Country Status (12)
Country | Link |
---|---|
US (1) | US5615209A (de) |
EP (1) | EP0840960B1 (de) |
JP (1) | JP2000503172A (de) |
KR (1) | KR100410791B1 (de) |
CN (1) | CN1098571C (de) |
AU (1) | AU728040B2 (de) |
BR (1) | BR9610029A (de) |
CA (1) | CA2227880C (de) |
DE (1) | DE69625816T2 (de) |
IL (1) | IL122989A (de) |
RU (1) | RU2200365C2 (de) |
WO (1) | WO1997005708A1 (de) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE37802E1 (en) | 1992-03-31 | 2002-07-23 | Wi-Lan Inc. | Multicode direct sequence spread spectrum |
US5550809A (en) * | 1992-04-10 | 1996-08-27 | Ericsson Ge Mobile Communications, Inc. | Multiple access coding using bent sequences for mobile radio communications |
US6320842B1 (en) * | 1996-02-01 | 2001-11-20 | Canon Kabushiki Kaisha | Spread spectrum communication apparatus |
US5894473A (en) * | 1996-02-29 | 1999-04-13 | Ericsson Inc. | Multiple access communications system and method using code and time division |
US5764646A (en) * | 1996-04-02 | 1998-06-09 | Ericsson Inc. | Packet data transmission with clash subtraction |
US6192068B1 (en) | 1996-10-03 | 2001-02-20 | Wi-Lan Inc. | Multicode spread spectrum communications system |
IL119752A0 (en) * | 1996-12-04 | 1997-09-30 | Israel State | Asynchronous CDMA decorrelating detector |
JP2815007B2 (ja) * | 1996-12-05 | 1998-10-27 | 日本電気株式会社 | 可変レートcdma拡散回路 |
US6442153B1 (en) * | 1997-10-23 | 2002-08-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Random access in a mobile telecommunications system |
FR2774831B1 (fr) * | 1998-02-11 | 2000-04-07 | Agence Spatiale Europeenne | Recepteur adaptatif de signaux pour systeme de communications a acces pultiples par repartition a codes |
US6363105B1 (en) | 1998-02-17 | 2002-03-26 | Ericsson Inc. | Flexible sliding correlator for direct sequence spread spectrum systems |
US6643275B1 (en) | 1998-05-15 | 2003-11-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Random access in a mobile telecommunications system |
US6532252B1 (en) * | 1998-06-13 | 2003-03-11 | Samsung Electronics, Co., Ltd. | Device and method for measuring non-orthogonal noise power for CDMA communication system |
US6501788B1 (en) | 1999-01-22 | 2002-12-31 | Ericsson Inc. | Apparatus and methods for intereference cancellation in spread spectrum communications systems |
US6658047B1 (en) * | 1999-03-10 | 2003-12-02 | Nokia Corporation | Adaptive channel equalizer |
US6442154B1 (en) * | 1999-04-15 | 2002-08-27 | Ericsson Inc. | Method and apparatus for successive cancellation using multiple signal timings |
US6801565B1 (en) | 1999-06-25 | 2004-10-05 | Ericsson Inc. | Multi-stage rake combining methods and apparatus |
US6714585B1 (en) | 1999-06-25 | 2004-03-30 | Ericsson Inc. | Rake combining methods and apparatus using weighting factors derived from knowledge of spreading spectrum signal characteristics |
US6363060B1 (en) * | 1999-06-30 | 2002-03-26 | Qualcomm Incorporated | Method and apparatus for fast WCDMA acquisition |
US6574270B1 (en) * | 1999-07-30 | 2003-06-03 | Ericsson Inc. | Baseband interference canceling spread spectrum communications methods and apparatus |
CN1119880C (zh) * | 1999-09-16 | 2003-08-27 | 华为技术有限公司 | 移动通信系统中移动台和基站建立初始连接的方法 |
US6515980B1 (en) | 1999-09-22 | 2003-02-04 | Ericsson Inc. | Methods and apparatus for interference cancellation using complex interference orthogonalization techniques |
US6922434B2 (en) | 1999-10-19 | 2005-07-26 | Ericsson Inc. | Apparatus and methods for finger delay selection in RAKE receivers |
US6683924B1 (en) | 1999-10-19 | 2004-01-27 | Ericsson Inc. | Apparatus and methods for selective correlation timing in rake receivers |
WO2002007338A1 (fr) * | 2000-07-04 | 2002-01-24 | Linkair Communications, Inc. | Procede de conversion d'un code multi-adresse a spectre etale dans un systeme d'acces multiple a repartition par code |
KR100682118B1 (ko) * | 2000-08-25 | 2007-02-12 | 에스케이 텔레콤주식회사 | 코드 분할 다원 접속 방식을 기반으로 하는 무선 지역루프 시스템에서의 다원 접속 간섭 제거 장치 및 방법 |
US6574269B1 (en) | 2000-11-21 | 2003-06-03 | Bbnt Solutions Llc | Asymmetric orthogonal codes for wireless system receivers with multiplication-free correlators |
US7769078B2 (en) * | 2000-12-22 | 2010-08-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Apparatus, methods and computer program products for delay selection in a spread-spectrum receiver |
US7039136B2 (en) * | 2001-11-19 | 2006-05-02 | Tensorcomm, Inc. | Interference cancellation in a signal |
US7099377B2 (en) * | 2002-04-03 | 2006-08-29 | Stmicroelectronics N.V. | Method and device for interference cancellation in a CDMA wireless communication system |
US6765952B2 (en) * | 2002-05-06 | 2004-07-20 | Qualcomm Incorporated | Transmit diversity pilot processing |
US6862440B2 (en) * | 2002-05-29 | 2005-03-01 | Intel Corporation | Method and system for multiple channel wireless transmitter and receiver phase and amplitude calibration |
US20040021515A1 (en) * | 2002-06-11 | 2004-02-05 | Michalson William R. | Adaptive spatial temporal selective attenuator with restored phase |
KR20060009336A (ko) * | 2003-05-14 | 2006-01-31 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | 심볼 검출 방법, 심볼 검출 장치, 통신 수신기 및 셀룰러전화 세트 |
CN100345387C (zh) * | 2004-02-09 | 2007-10-24 | 瑞昱半导体股份有限公司 | 校正同相信号与正交相信号的相位差的方法及装置 |
KR100594943B1 (ko) * | 2004-11-30 | 2006-06-30 | 리전츠 오브 더 유니버스티 오브 미네소타 | 원칩시스템에서 데이터 변복조 방법 |
JP5497968B2 (ja) * | 2010-11-03 | 2014-05-21 | エンパイア テクノロジー ディベロップメント エルエルシー | Cdma干渉サブトラクションのための共同データ共有 |
GB2503418A (en) * | 2012-04-27 | 2014-01-01 | Imp Innovations Ltd | Spreading data symbols using a number of signature sequences selected in accordance with system values indicative of signal-to-noise ratios |
CN108092692B (zh) * | 2017-12-27 | 2020-02-07 | 西安科锐盛创新科技有限公司 | 一种cdma系统信道扩频装置及方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5272721A (en) * | 1990-02-14 | 1993-12-21 | Nobuo Mikoshiba | Spread spectrum receiving device |
US5157686A (en) * | 1990-05-24 | 1992-10-20 | Cylink Corporation | Method and apparatus for the modulation of spread spectrum radio signals |
US5103459B1 (en) * | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
US5101417A (en) * | 1990-06-29 | 1992-03-31 | Xerox Corporation | Phase controlled synchronization for direct sequence spread-spectrum communication systems |
US5099493A (en) * | 1990-08-27 | 1992-03-24 | Zeger-Abrams Incorporated | Multiple signal receiver for direct sequence, code division multiple access, spread spectrum signals |
US5218619A (en) * | 1990-12-17 | 1993-06-08 | Ericsson Ge Mobile Communications Holding, Inc. | CDMA subtractive demodulation |
US5151919A (en) * | 1990-12-17 | 1992-09-29 | Ericsson-Ge Mobile Communications Holding Inc. | Cdma subtractive demodulation |
US5105435A (en) * | 1990-12-21 | 1992-04-14 | Motorola, Inc. | Method and apparatus for cancelling spread-spectrum noise |
US5204874A (en) * | 1991-08-28 | 1993-04-20 | Motorola, Inc. | Method and apparatus for using orthogonal coding in a communication system |
US5345468A (en) * | 1992-12-16 | 1994-09-06 | At&T Bell Laboratories | Despreading technique for CDMA systems |
US5345472A (en) * | 1993-08-02 | 1994-09-06 | Motorola, Inc. | Method and apparatus for receiving and decoding communication signals in a CDMA receiver |
US5414699A (en) * | 1993-09-27 | 1995-05-09 | Motorola, Inc. | Method and apparatus for receiving and decoding communication signals in a CDMA receiver using partial de-correlation |
US5471497A (en) * | 1993-11-01 | 1995-11-28 | Zehavi; Ephraim | Method and apparatus for variable rate signal transmission in a spread spectrum communication system using coset coding |
-
1995
- 1995-07-26 US US08/507,714 patent/US5615209A/en not_active Expired - Lifetime
-
1996
- 1996-07-17 CN CN96197012A patent/CN1098571C/zh not_active Expired - Fee Related
- 1996-07-17 WO PCT/US1996/011735 patent/WO1997005708A1/en active IP Right Grant
- 1996-07-17 AU AU64948/96A patent/AU728040B2/en not_active Ceased
- 1996-07-17 RU RU98103270/09A patent/RU2200365C2/ru active
- 1996-07-17 CA CA002227880A patent/CA2227880C/en not_active Expired - Fee Related
- 1996-07-17 KR KR10-1998-0700642A patent/KR100410791B1/ko not_active IP Right Cessation
- 1996-07-17 BR BR9610029A patent/BR9610029A/pt active Search and Examination
- 1996-07-17 DE DE69625816T patent/DE69625816T2/de not_active Expired - Lifetime
- 1996-07-17 IL IL12298996A patent/IL122989A/xx not_active IP Right Cessation
- 1996-07-17 EP EP96924518A patent/EP0840960B1/de not_active Expired - Lifetime
- 1996-07-17 JP JP9507619A patent/JP2000503172A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
IL122989A0 (en) | 1998-08-16 |
BR9610029A (pt) | 1999-07-06 |
AU728040B2 (en) | 2001-01-04 |
RU2200365C2 (ru) | 2003-03-10 |
IL122989A (en) | 2000-11-21 |
CA2227880A1 (en) | 1997-02-13 |
KR19990035981A (ko) | 1999-05-25 |
KR100410791B1 (ko) | 2004-02-18 |
DE69625816T2 (de) | 2003-08-28 |
CA2227880C (en) | 2009-06-09 |
WO1997005708A1 (en) | 1997-02-13 |
EP0840960A1 (de) | 1998-05-13 |
JP2000503172A (ja) | 2000-03-14 |
CN1098571C (zh) | 2003-01-08 |
US5615209A (en) | 1997-03-25 |
AU6494896A (en) | 1997-02-26 |
CN1196842A (zh) | 1998-10-21 |
EP0840960B1 (de) | 2003-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |