CN1256562A - 一种移动站在语音通信模式期间执行自动频率控制的方法 - Google Patents
一种移动站在语音通信模式期间执行自动频率控制的方法 Download PDFInfo
- Publication number
- CN1256562A CN1256562A CN99123900A CN99123900A CN1256562A CN 1256562 A CN1256562 A CN 1256562A CN 99123900 A CN99123900 A CN 99123900A CN 99123900 A CN99123900 A CN 99123900A CN 1256562 A CN1256562 A CN 1256562A
- Authority
- CN
- China
- Prior art keywords
- frequency
- base station
- signal
- voice communication
- communication mode
- 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.)
- Granted
Links
- 238000004891 communication Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005259 measurement Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
Images
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
- H04B1/76—Pilot transmitters or receivers for control of transmission or for equalising
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
-
- 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
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Circuits Of Receivers In General (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27991598A JP3397238B2 (ja) | 1998-10-01 | 1998-10-01 | 移動局および移動局におけるafc制御方法 |
JP279915/1998 | 1998-10-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1256562A true CN1256562A (zh) | 2000-06-14 |
CN1146146C CN1146146C (zh) | 2004-04-14 |
Family
ID=17617694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB991239008A Expired - Fee Related CN1146146C (zh) | 1998-10-01 | 1999-09-30 | 一种移动站在语音通信模式期间执行自动频率控制的方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6625434B1 (zh) |
EP (1) | EP0991189B1 (zh) |
JP (1) | JP3397238B2 (zh) |
KR (1) | KR100308513B1 (zh) |
CN (1) | CN1146146C (zh) |
AU (1) | AU754872B2 (zh) |
DE (1) | DE69937597T2 (zh) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JP3464645B2 (ja) | 2000-08-30 | 2003-11-10 | 松下電器産業株式会社 | 無線受信装置 |
GB2367212B (en) * | 2000-09-20 | 2004-07-07 | Nec Technologies | Evaluation of UMTS mobile receiver reference |
JP2002152081A (ja) * | 2000-11-07 | 2002-05-24 | Matsushita Electric Ind Co Ltd | 受信装置及び受信装置における基準周波数制御方法 |
JP2002190765A (ja) * | 2000-12-20 | 2002-07-05 | Nec Corp | 移動端末の周波数制御方式 |
JP2003078426A (ja) | 2001-08-31 | 2003-03-14 | Nec Corp | 携帯端末装置の周波数補正方法 |
US7280623B2 (en) * | 2002-08-02 | 2007-10-09 | Hypres, Inc. | Digital RF correlator for multipurpose digital signal processing |
US7639766B2 (en) * | 2004-09-27 | 2009-12-29 | Via Telecom Co., Ltd. | Combined automatic frequency correction and time track system to minimize sample timing errors |
US7865158B2 (en) * | 2005-07-26 | 2011-01-04 | Interdigital Technology Corporation | Method and apparatus for automatically correcting receiver oscillator frequency |
EP3668179A1 (en) | 2006-06-20 | 2020-06-17 | InterDigital Technology Corporation | Content of the handover command in an intra-lte handover |
US7873125B2 (en) * | 2006-11-30 | 2011-01-18 | Broadcom Corporation | Method and system for sliding window phase estimator for WCDMA automatic frequency correction |
MX2009011442A (es) * | 2007-04-23 | 2010-01-18 | Interdigital Tech Corp | Manejo de fallas en enlace de radio y transferencia. |
JP5031600B2 (ja) * | 2008-01-28 | 2012-09-19 | 京セラ株式会社 | 無線通信方法、無線通信システム、基地局、移動局 |
US8407513B2 (en) * | 2009-04-16 | 2013-03-26 | Infineon Technologies Ag | Clock distribution with forward frequency error information |
US8401600B1 (en) | 2010-08-02 | 2013-03-19 | Hypres, Inc. | Superconducting multi-bit digital mixer |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4955083A (en) * | 1986-10-31 | 1990-09-04 | Motorola, Inc. | Dual mode radio transceiver for an SSB communication system |
JPH07105822B2 (ja) * | 1989-08-10 | 1995-11-13 | 三菱電機株式会社 | 自動周波数制御装置 |
DE69225259T2 (de) * | 1991-02-22 | 1998-08-20 | Sony Corp | Zeitduplex-Sender-Empfänger |
US5361276A (en) | 1993-09-13 | 1994-11-01 | At&T Bell Laboratories | All digital maximum likelihood based spread spectrum receiver |
DE69429715T2 (de) * | 1993-10-13 | 2002-08-08 | Ntt Docomo, Inc. | Empfänger für spreizspektrumübertragung |
JPH07297779A (ja) | 1994-04-26 | 1995-11-10 | Toshiba Corp | 自動周波数制御機能を備えたディジタル無線機 |
JPH0846653A (ja) | 1994-07-27 | 1996-02-16 | Nec Corp | 周波数制御装置 |
US5678223A (en) * | 1995-03-07 | 1997-10-14 | Motorola, Inc. | Method and apparatus for an automatic frequency control receiver |
KR0164381B1 (ko) * | 1995-12-30 | 1999-02-01 | 김광호 | 디지탈 무선 통신시스템의 자동 주파수 조절회로 |
JP3392630B2 (ja) | 1996-03-22 | 2003-03-31 | 松下電器産業株式会社 | スペクトル拡散通信装置 |
JPH09312600A (ja) | 1996-05-21 | 1997-12-02 | Oki Electric Ind Co Ltd | 自動周波数制御装置 |
JP2752963B2 (ja) | 1996-07-26 | 1998-05-18 | 埼玉日本電気株式会社 | Cdma方式多重伝送装置 |
JPH1041786A (ja) | 1996-07-26 | 1998-02-13 | Saitama Nippon Denki Kk | デジタル携帯電話装置 |
JPH10107860A (ja) | 1996-10-02 | 1998-04-24 | Casio Comput Co Ltd | Afc回路及びこれを用いた受信装置 |
JP3617741B2 (ja) * | 1996-10-23 | 2005-02-09 | 松下電器産業株式会社 | スペクトラム拡散通信用受信装置 |
JP2865086B2 (ja) * | 1996-11-28 | 1999-03-08 | 日本電気株式会社 | 移動通信端末 |
JPH10200508A (ja) * | 1997-01-14 | 1998-07-31 | Sony Corp | 無線システムの端末装置及びサーチ方法 |
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 |
-
1998
- 1998-10-01 JP JP27991598A patent/JP3397238B2/ja not_active Expired - Fee Related
-
1999
- 1999-09-29 US US09/408,977 patent/US6625434B1/en not_active Expired - Lifetime
- 1999-09-30 DE DE1999637597 patent/DE69937597T2/de not_active Expired - Lifetime
- 1999-09-30 EP EP19990119055 patent/EP0991189B1/en not_active Expired - Lifetime
- 1999-09-30 AU AU52597/99A patent/AU754872B2/en not_active Ceased
- 1999-09-30 CN CNB991239008A patent/CN1146146C/zh not_active Expired - Fee Related
- 1999-10-01 KR KR1019990042174A patent/KR100308513B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6625434B1 (en) | 2003-09-23 |
JP2000115056A (ja) | 2000-04-21 |
AU754872B2 (en) | 2002-11-28 |
DE69937597T2 (de) | 2008-03-13 |
JP3397238B2 (ja) | 2003-04-14 |
EP0991189A2 (en) | 2000-04-05 |
EP0991189A3 (en) | 2003-04-09 |
AU5259799A (en) | 2000-04-06 |
EP0991189B1 (en) | 2007-11-21 |
KR100308513B1 (ko) | 2001-11-02 |
DE69937597D1 (de) | 2008-01-03 |
CN1146146C (zh) | 2004-04-14 |
KR20000028760A (ko) | 2000-05-25 |
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Legal Events
Date | Code | Title | Description |
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C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: LENOVO INNOVATION CO., LTD. (HONGKONG) Free format text: FORMER OWNER: NEC CORP. Effective date: 20141119 |
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C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; TO: HONG KONG, CHINA |
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TR01 | Transfer of patent right |
Effective date of registration: 20141119 Address after: Hongkong, China Patentee after: LENOVO INNOVATIONS Co.,Ltd.(HONG KONG) Address before: Tokyo, Japan Patentee before: NEC Corp. |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040414 Termination date: 20170930 |