DE69631623D1 - Spreizsequenzgenerator und CDMA-Übertragungssystem - Google Patents
Spreizsequenzgenerator und CDMA-ÜbertragungssystemInfo
- Publication number
- DE69631623D1 DE69631623D1 DE69631623T DE69631623T DE69631623D1 DE 69631623 D1 DE69631623 D1 DE 69631623D1 DE 69631623 T DE69631623 T DE 69631623T DE 69631623 T DE69631623 T DE 69631623T DE 69631623 D1 DE69631623 D1 DE 69631623D1
- Authority
- DE
- Germany
- Prior art keywords
- transmission system
- sequence generator
- spreading sequence
- cdma transmission
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/10—Code generation
- H04J13/12—Generation of orthogonal codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/0022—PN, e.g. Kronecker
-
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/10—Code generation
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19206295 | 1995-07-27 | ||
JP19206295A JP3483991B2 (ja) | 1995-07-27 | 1995-07-27 | 符号分割多重アクセス通信用拡散符号発生器、符号分割多重アクセス通信システム及び符号分割多重アクセス通信用拡散符号発生方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69631623D1 true DE69631623D1 (de) | 2004-04-01 |
DE69631623T2 DE69631623T2 (de) | 2004-12-23 |
Family
ID=16284996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1996631623 Expired - Lifetime DE69631623T2 (de) | 1995-07-27 | 1996-07-17 | Spreizsequenzgenerator und CDMA-Übertragungssystem |
Country Status (6)
Country | Link |
---|---|
US (1) | US5920591A (de) |
EP (1) | EP0756395B1 (de) |
JP (1) | JP3483991B2 (de) |
KR (1) | KR100420404B1 (de) |
CA (1) | CA2181637A1 (de) |
DE (1) | DE69631623T2 (de) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA965340B (en) | 1995-06-30 | 1997-01-27 | Interdigital Tech Corp | Code division multiple access (cdma) communication system |
JPH1056361A (ja) * | 1996-08-07 | 1998-02-24 | Matsushita Electric Ind Co Ltd | 疑似雑音系列発生器 |
EP0905941B1 (de) * | 1997-02-13 | 2006-12-27 | Ntt Mobile Communications Network Inc. | Schaltung zur rahmensynchronisierung |
US6061386A (en) * | 1997-03-19 | 2000-05-09 | I.C. Com Ltd. | Method of chip interleaving in direct sequence spread spectrum communications |
JP3818733B2 (ja) * | 1997-04-30 | 2006-09-06 | 富士通株式会社 | 平均値算出回路並びにこれを用いた相関値算出回路、マッチドフィルタ及び通信機 |
KR100511671B1 (ko) * | 1997-05-29 | 2005-10-31 | 엘지전자 주식회사 | 코드분할다중접속시스템의직교확산을위한pn코드생성장치 |
US6996077B1 (en) * | 1997-07-03 | 2006-02-07 | Kabushiki Kaisha Toshiba | Satellite broadcasting system |
FI106181B (fi) * | 1997-09-17 | 2000-11-30 | Nokia Mobile Phones Ltd | Kanavien allokointi solukkoradiojärjestelmän tukiasemissa |
US20020051434A1 (en) * | 1997-10-23 | 2002-05-02 | Ozluturk Fatih M. | Method for using rapid acquisition spreading codes for spread-spectrum communications |
EP0963070B1 (de) | 1997-11-19 | 2012-04-11 | Ntt Mobile Communications Network Inc. | Vorrichtung zur gleichzeitigen Erzeugung einer Mehrzahl von Kode-Serien und CDMA Empfänger die Vorrichtung beinhaltend |
US6226315B1 (en) * | 1998-03-09 | 2001-05-01 | Texas Instruments Incorporated | Spread-spectrum telephony with accelerated code acquisition |
US6112094A (en) * | 1998-04-06 | 2000-08-29 | Ericsson Inc. | Orthogonal frequency hopping pattern re-use scheme |
JP3028800B2 (ja) * | 1998-05-01 | 2000-04-04 | 日本電気株式会社 | Cdmaセルラシステム及びcdmaセルラシステムにおける拡散符号検出方法 |
KR20000009140A (ko) * | 1998-07-21 | 2000-02-15 | 윤종용 | 확산대역 통신시스템의 초기 포착 및 프레임동기 장치 및 방법 |
KR100401190B1 (ko) * | 1998-09-17 | 2003-12-31 | 삼성전자주식회사 | 부호분할다중접속통신시스템의동기채널을이용한프레임동기장치및방법 |
KR100346188B1 (ko) * | 1998-09-29 | 2002-07-26 | 삼성전자 주식회사 | 부호분할다중접속 통신시스템의 확산코드 생성 및 이를 이용한대역확산 장치 및 방법 |
IL144085A0 (en) * | 1999-01-11 | 2002-05-23 | Samsung Electronics Co Ltd | Method for generating complex quasi-orthogonal code and apparatus and method for spreading channel data using the quasi-orthogonal code in cdma communication system |
US7319686B1 (en) * | 1999-03-18 | 2008-01-15 | Industrial Technology Research Institute | Frame synchronization in multi-cell systems with a data interface |
WO2000069088A1 (en) * | 1999-05-06 | 2000-11-16 | Navcom Technology, Inc. | Spread-spectrum gmsk/m-ary radio with oscillator frequency correction |
US6430212B1 (en) | 1999-05-06 | 2002-08-06 | Navcom Technology, Inc. | Spread-spectrum GMSK/M-ary radio |
US6611494B1 (en) * | 1999-05-19 | 2003-08-26 | Agere Systems Inc. | Orthogonal sequence generator |
US6452962B1 (en) * | 1999-06-11 | 2002-09-17 | Trw Inc. | Mitigation of co-channel interference in synchronization bursts in a multi-beam communication system |
US6567017B2 (en) * | 1999-12-30 | 2003-05-20 | Morphics Technology, Inc. | Configurable code generator system for spread spectrum applications |
JP2001345738A (ja) * | 2000-06-06 | 2001-12-14 | Sony Corp | 同期検出装置 |
IT1320651B1 (it) * | 2000-09-15 | 2003-12-10 | St Microelectronics Srl | Procedimento e dispositivo per la generazione di codici, ad esempiocodici per applicazioni cdma. |
JP2002232397A (ja) * | 2001-01-31 | 2002-08-16 | Ntt Docomo Inc | 移動通信システムにおける受信処理方法及び受信装置 |
KR100424628B1 (ko) * | 2001-12-12 | 2004-03-24 | 삼성전자주식회사 | 이동통신시스템에서 확산부호 생성장치 및 방법 |
DE10306301B3 (de) * | 2003-02-14 | 2004-10-07 | Infineon Technologies Ag | Vorrichtung zur Erzeugung von Spreizcodes in einem Mobilfunksystem und deren Verwendung in einem CDMA-Übertragungssystem |
US7529291B2 (en) * | 2004-04-13 | 2009-05-05 | Raytheon Company | Methods and structures for rapid code acquisition in spread spectrum communications |
JP5421125B2 (ja) * | 2007-02-02 | 2014-02-19 | エルジー エレクトロニクス インコーポレイティド | グルーピングを用いた参照信号シーケンス生成方法 |
KR20080072508A (ko) | 2007-02-02 | 2008-08-06 | 엘지전자 주식회사 | 다양한 자원 블록 길이를 가지는 시퀀스 할당 방법 및 이를위한 시퀀스 그룹핑 방법 |
CN104821868B (zh) * | 2007-04-30 | 2018-06-01 | 诺基亚通信公司 | 用于无线通信的方法和装置 |
US8488649B2 (en) * | 2008-01-30 | 2013-07-16 | Mitsubishi Electric Corporation | Code converting apparatus, receiver, and code converting method |
US8050355B2 (en) * | 2008-06-11 | 2011-11-01 | Korea Electronics Technology Institute | Transmitter and receiver using pseudo-orthogonal code |
TWI381672B (zh) * | 2008-12-05 | 2013-01-01 | Nat Univ Chung Cheng | And a synchronizing means for synchronizing the communication means with the base station signal |
GB2560569A (en) * | 2017-03-16 | 2018-09-19 | British Telecomm | Synchronisation in a communications network |
WO2018166695A1 (en) | 2017-03-16 | 2018-09-20 | British Telecommunications Public Limited Company | Branched communications network |
ES2821573T3 (es) | 2017-03-16 | 2021-04-26 | British Telecomm | Difusión en una red de comunicaciones |
FR3076923A1 (fr) * | 2018-01-16 | 2019-07-19 | Stmicroelectronics (Rousset) Sas | Procede et circuit d'authentification |
FR3098949B1 (fr) | 2019-07-15 | 2023-10-06 | St Microelectronics Rousset | Fonction à sens unique |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2124320C1 (de) * | 1971-05-17 | 1978-04-27 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Elektrische Schaltung zur Erzeugung einer Vielzahl verschiedener Codes |
JPS61198837A (ja) * | 1985-02-27 | 1986-09-03 | Kyocera Corp | スペクトラム拡散通信システムのpn発生器 |
US4969159A (en) * | 1989-03-22 | 1990-11-06 | Harris Corporation | Spread spectrum communication system employing composite spreading codes with matched filter demodulator |
US5103459B1 (en) * | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
US5228056A (en) * | 1990-12-14 | 1993-07-13 | Interdigital Technology Corporation | Synchronous spread-spectrum communications system and method |
US5210770A (en) * | 1991-09-27 | 1993-05-11 | Lockheed Missiles & Space Company, Inc. | Multiple-signal spread-spectrum transceiver |
US5497395A (en) * | 1994-04-04 | 1996-03-05 | Qualcomm Incorporated | Method and apparatus for modulating signal waveforms in a CDMA communication system |
US5614914A (en) * | 1994-09-06 | 1997-03-25 | Interdigital Technology Corporation | Wireless telephone distribution system with time and space diversity transmission for determining receiver location |
-
1995
- 1995-07-27 JP JP19206295A patent/JP3483991B2/ja not_active Expired - Fee Related
-
1996
- 1996-07-15 US US08/679,925 patent/US5920591A/en not_active Expired - Lifetime
- 1996-07-17 EP EP19960111548 patent/EP0756395B1/de not_active Expired - Lifetime
- 1996-07-17 DE DE1996631623 patent/DE69631623T2/de not_active Expired - Lifetime
- 1996-07-19 CA CA 2181637 patent/CA2181637A1/en not_active Abandoned
- 1996-07-26 KR KR1019960030635A patent/KR100420404B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP3483991B2 (ja) | 2004-01-06 |
KR970008940A (ko) | 1997-02-24 |
US5920591A (en) | 1999-07-06 |
DE69631623T2 (de) | 2004-12-23 |
JPH0946317A (ja) | 1997-02-14 |
CA2181637A1 (en) | 1997-01-28 |
EP0756395B1 (de) | 2004-02-25 |
EP0756395A2 (de) | 1997-01-29 |
EP0756395A3 (de) | 1999-07-07 |
KR100420404B1 (ko) | 2004-06-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: CANON KABUSHIKI KAISHA, TOKIO/TOKYO, JP |