DE69429715D1 - Empfänger für spreizspektrumübertragung - Google Patents
Empfänger für spreizspektrumübertragungInfo
- Publication number
- DE69429715D1 DE69429715D1 DE69429715T DE69429715T DE69429715D1 DE 69429715 D1 DE69429715 D1 DE 69429715D1 DE 69429715 T DE69429715 T DE 69429715T DE 69429715 T DE69429715 T DE 69429715T DE 69429715 D1 DE69429715 D1 DE 69429715D1
- Authority
- DE
- Germany
- Prior art keywords
- receiver
- spectrum transmission
- spreading spectrum
- spreading
- transmission
- 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
- H04B1/7097—Interference-related aspects
-
- 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
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25563393 | 1993-10-13 | ||
PCT/JP1994/001701 WO1995010891A1 (fr) | 1993-10-13 | 1994-10-12 | Recepteur pour communications par etalement du spectre |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69429715D1 true DE69429715D1 (de) | 2002-03-14 |
DE69429715T2 DE69429715T2 (de) | 2002-08-08 |
Family
ID=17281465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1994629715 Expired - Lifetime DE69429715T2 (de) | 1993-10-13 | 1994-10-12 | Empfänger für spreizspektrumübertragung |
Country Status (6)
Country | Link |
---|---|
US (1) | US5594754A (de) |
EP (1) | EP0675606B1 (de) |
JP (1) | JP2764153B2 (de) |
CN (1) | CN1035586C (de) |
DE (1) | DE69429715T2 (de) |
WO (1) | WO1995010891A1 (de) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1059530C (zh) * | 1994-02-10 | 2000-12-13 | Ntt移动通信网株式会社 | 自适应扩频接收机 |
KR970011690B1 (ko) * | 1994-11-22 | 1997-07-14 | 삼성전자 주식회사 | 파일럿트 채널을 이용한 대역확산 통신시스템의 데이타 송신기 및 수신기 |
US5696789A (en) * | 1995-03-06 | 1997-12-09 | Unisys Corporation | Apparatus and method for signal identification |
US5692006A (en) * | 1995-07-31 | 1997-11-25 | Qualcomm Incorporated | Adaptive despreader |
JPH09116475A (ja) * | 1995-10-23 | 1997-05-02 | Nec Corp | 時間ダイバーシチ送受信システム |
FI100494B (fi) | 1995-11-20 | 1997-12-15 | Nokia Telecommunications Oy | Menetelmä vastaanottimen ohjaamiseksi ja vastaanotin |
JP3307217B2 (ja) * | 1996-03-01 | 2002-07-24 | 株式会社豊田自動織機 | スペクトラム拡散通信方式における受信装置 |
US6061359A (en) * | 1996-08-02 | 2000-05-09 | Golden Bridge Technology, Inc. | Increased-capacity, packet spread-spectrum system and method |
US5805585A (en) * | 1996-08-22 | 1998-09-08 | At&T Corp. | Method for providing high speed packet data services for a wireless system |
US6034987A (en) * | 1996-12-17 | 2000-03-07 | Ericsson Inc. | System for improving the quality of a received radio signal |
WO1998035458A1 (en) * | 1997-02-06 | 1998-08-13 | At & T Wireless Services, Inc. | Method of synchronizing a remote station with a base station in a discrete multitone spread spectrum communications system |
US5943375A (en) * | 1997-02-06 | 1999-08-24 | At&T Wireless Services Inc. | Method to indicate synchronization lock of a remote station with a base station |
JP3563231B2 (ja) * | 1997-04-04 | 2004-09-08 | 株式会社デノン | 周波数制御装置および方法、受信装置、ならびに、通信装置 |
FR2767238B1 (fr) * | 1997-08-07 | 1999-10-01 | Alsthom Cge Alcatel | Dispositifs monocanal et multicanaux de demodulation coherente sans pilote, et ensemble correspondant de reception a plusieurs chemins de diversite |
JP3380446B2 (ja) * | 1997-10-20 | 2003-02-24 | 株式会社鷹山 | Cdma通信システム用受信装置 |
JP3316744B2 (ja) | 1997-10-30 | 2002-08-19 | 三菱電機株式会社 | Afc回路、それを備えた受信機、及び自動周波数制御通信システム |
US5955986A (en) * | 1997-11-20 | 1999-09-21 | Eagle Eye Technologies, Inc. | Low-power satellite-based geopositioning system |
US6366607B1 (en) | 1998-05-14 | 2002-04-02 | Interdigital Technology Corporation | Processing for improved performance and reduced pilot |
US6289061B1 (en) * | 1998-09-24 | 2001-09-11 | Sharp Laboratories Of America, Inc. | Wideband frequency tracking system and method |
JP3397238B2 (ja) * | 1998-10-01 | 2003-04-14 | 日本電気株式会社 | 移動局および移動局におけるafc制御方法 |
JP3031355B1 (ja) | 1998-10-01 | 2000-04-10 | 日本電気株式会社 | 移動局および移動局におけるafc制御方法 |
US6278725B1 (en) | 1998-12-18 | 2001-08-21 | Philips Electronics North America Corporation | Automatic frequency control loop multipath combiner for a rake receiver |
US6169514B1 (en) | 1999-02-04 | 2001-01-02 | Eagle Eye Technologies, Inc. | Low-power satellite-based geopositioning system |
US7319686B1 (en) * | 1999-03-18 | 2008-01-15 | Industrial Technology Research Institute | Frame synchronization in multi-cell systems with a data interface |
US20040143392A1 (en) * | 1999-07-12 | 2004-07-22 | Skybitz, Inc. | System and method for fast acquisition reporting using communication satellite range measurement |
US6480788B2 (en) * | 1999-07-12 | 2002-11-12 | Eagle-Eye, Inc. | System and method for fast acquisition reporting using communication satellite range measurement |
US6560536B1 (en) | 1999-07-12 | 2003-05-06 | Eagle-Eye, Inc. | System and method for rapid telepositioning |
US8255149B2 (en) | 1999-07-12 | 2012-08-28 | Skybitz, Inc. | System and method for dual-mode location determination |
US6208842B1 (en) * | 1999-09-30 | 2001-03-27 | Motorola Inc. | Method and apparatus for estimating a channel parameter |
US6608858B1 (en) * | 2000-01-26 | 2003-08-19 | Qualcomm Incorporated | Multipath doppler adjusted frequency tracking loop |
ATE289135T1 (de) | 2000-03-28 | 2005-02-15 | Interdigital Tech Corp | Cdma system, welches vor dem senden eine vordrehung benutzt |
CA2418855A1 (en) | 2000-08-09 | 2002-02-14 | Skybitz, Inc. | System and method for fast code phase and carrier frequency acquisition in gps receiver |
JP3464645B2 (ja) | 2000-08-30 | 2003-11-10 | 松下電器産業株式会社 | 無線受信装置 |
CA2422776A1 (en) | 2000-09-18 | 2002-03-28 | Skybitz, Inc. | System and method for fast code phase and carrier frequency acquisition in gps receiver |
US7443826B1 (en) | 2000-10-04 | 2008-10-28 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for automatic frequency control in a CDMA receiver |
GB2369275B (en) * | 2000-11-21 | 2004-07-07 | Ubinetics Ltd | A rake receiver and a method of providing a frequency error estimate |
JP3835800B2 (ja) * | 2002-02-08 | 2006-10-18 | 株式会社東芝 | 受信フレームの同期方法、および、受信装置 |
US6741665B2 (en) * | 2002-06-20 | 2004-05-25 | Nokia Corporation | Method and apparatus providing an amplitude independent automatic frequency control circuit |
EP1383239A1 (de) * | 2002-07-17 | 2004-01-21 | STMicroelectronics N.V. | Verfahren und Einrichtung zur automatischen Frequenzregelung in einem DS-CDMA-Empfänger |
FR2843249A1 (fr) * | 2002-07-31 | 2004-02-06 | Koninkl Philips Electronics Nv | Recepteur comportant des moyens de reception multiples en parallele. |
US7301993B2 (en) * | 2002-09-13 | 2007-11-27 | Broadcom Corporation | Channel estimation in a spread spectrum receiver |
US7483479B2 (en) * | 2004-09-16 | 2009-01-27 | Keyeye Communications | Scaled signal processing elements for reduced filter tap noise |
EP1681773A1 (de) * | 2005-01-13 | 2006-07-19 | Centre National D'etudes Spatiales | Spreizspektrumsignal |
CN1317830C (zh) * | 2005-04-15 | 2007-05-23 | 展讯通信(上海)有限公司 | 自动频偏校正方法及使用该方法的装置和接收机 |
US7421252B2 (en) * | 2005-08-02 | 2008-09-02 | Freescale Semiconductor, Inc. | Center frequency control of an integrated phase rotator band-pass filter using VCO coarse trim bits |
US8018986B2 (en) * | 2005-10-03 | 2011-09-13 | Nec Corporation | Signal receiving apparatus including equalizer, terminal apparatus, signal receiving method, and signal receiving program |
US8229041B2 (en) | 2009-05-26 | 2012-07-24 | Broadcom Corporation | Direct detection of wireless interferers in a communication device for multiple modulation types |
US8743848B2 (en) | 2009-05-26 | 2014-06-03 | Broadcom Corporation | Hybrid location determination for wireless communication device |
US9503139B2 (en) | 2013-08-06 | 2016-11-22 | Motorola Solutions, Inc. | Very low intermediate frequency (VLIF) receiver and method of controlling VLIF receiver |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4841544A (en) * | 1987-05-14 | 1989-06-20 | The Charles Stark Draper Laboratory, Inc. | Digital direct sequence spread spectrum receiver |
JPH0748709B2 (ja) * | 1988-12-20 | 1995-05-24 | 三菱電機株式会社 | ダイレクトシーケンス復調装置 |
US5150377A (en) * | 1990-11-02 | 1992-09-22 | At&T Bell Laboratories | Direct sequence spread spectrum (dsss) communications system with frequency modulation utilized to achieve spectral spreading |
US5218619A (en) * | 1990-12-17 | 1993-06-08 | Ericsson Ge Mobile Communications Holding, Inc. | CDMA subtractive demodulation |
US5467367A (en) * | 1991-06-07 | 1995-11-14 | Canon Kabushiki Kaisha | Spread spectrum communication apparatus and telephone exchange system |
US5271034A (en) * | 1991-08-26 | 1993-12-14 | Avion Systems, Inc. | System and method for receiving and decoding global positioning satellite signals |
JP2698507B2 (ja) * | 1992-06-29 | 1998-01-19 | 三菱電機株式会社 | Afc回路 |
KR950009406B1 (ko) * | 1992-11-27 | 1995-08-22 | 삼성전자주식회사 | 코드분할 다중접근(cdma) 직접확산(ds) 방식 수신기의 클럭 복구안정화방법 및 회로 |
-
1994
- 1994-10-12 WO PCT/JP1994/001701 patent/WO1995010891A1/ja active IP Right Grant
- 1994-10-12 EP EP19940929641 patent/EP0675606B1/de not_active Expired - Lifetime
- 1994-10-12 JP JP51158795A patent/JP2764153B2/ja not_active Expired - Fee Related
- 1994-10-12 DE DE1994629715 patent/DE69429715T2/de not_active Expired - Lifetime
- 1994-10-12 US US08/448,396 patent/US5594754A/en not_active Expired - Lifetime
- 1994-10-12 CN CN94190783A patent/CN1035586C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0675606A1 (de) | 1995-10-04 |
EP0675606B1 (de) | 2002-01-23 |
JP2764153B2 (ja) | 1998-06-11 |
US5594754A (en) | 1997-01-14 |
WO1995010891A1 (fr) | 1995-04-20 |
EP0675606A4 (de) | 1997-05-21 |
DE69429715T2 (de) | 2002-08-08 |
CN1035586C (zh) | 1997-08-06 |
CN1115590A (zh) | 1996-01-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |