CN1065094C - 在码分多址通信***中用于接收时间对准信号的方法和设备 - Google Patents
在码分多址通信***中用于接收时间对准信号的方法和设备 Download PDFInfo
- Publication number
- CN1065094C CN1065094C CN941910407A CN94191040A CN1065094C CN 1065094 C CN1065094 C CN 1065094C CN 941910407 A CN941910407 A CN 941910407A CN 94191040 A CN94191040 A CN 94191040A CN 1065094 C CN1065094 C CN 1065094C
- Authority
- CN
- China
- Prior art keywords
- signal
- base station
- time
- group
- subscriber unit
- 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
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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
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
- H04L7/007—Detection of the synchronisation error by features other than the received signal transition detection of error based on maximum signal power, e.g. peak value, maximizing autocorrelation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/159,633 US5446727A (en) | 1993-11-30 | 1993-11-30 | Method and apparatus for time aligning signals for reception in a code-division multiple access communication system |
US08/159,633 | 1993-11-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1116889A CN1116889A (zh) | 1996-02-14 |
CN1065094C true CN1065094C (zh) | 2001-04-25 |
Family
ID=22573340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN941910407A Expired - Lifetime CN1065094C (zh) | 1993-11-30 | 1994-11-03 | 在码分多址通信***中用于接收时间对准信号的方法和设备 |
Country Status (13)
Country | Link |
---|---|
US (1) | US5446727A (zh) |
EP (1) | EP0695484B1 (zh) |
JP (1) | JP3565856B2 (zh) |
KR (1) | KR0177268B1 (zh) |
CN (1) | CN1065094C (zh) |
BR (1) | BR9405751A (zh) |
DE (1) | DE4499436B3 (zh) |
FI (1) | FI112746B (zh) |
GB (1) | GB2290200B (zh) |
RU (1) | RU2122290C1 (zh) |
SE (1) | SE521574C2 (zh) |
SG (1) | SG69960A1 (zh) |
WO (1) | WO1995015626A1 (zh) |
Families Citing this family (70)
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CA2094710C (en) | 1990-10-23 | 1998-12-01 | Robert Clyde Dixon | Method and apparatus for establishing spread spectrum communications |
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US5659574A (en) | 1994-09-09 | 1997-08-19 | Omnipoint Corporation | Multi-bit correlation of continuous phase modulated signals |
US5629956A (en) | 1994-09-09 | 1997-05-13 | Omnipoint Corporation | Method and apparatus for reception and noncoherent serial correlation of a continuous phase modulated signal |
US5680414A (en) | 1994-09-09 | 1997-10-21 | Omnipoint Corporation | Synchronization apparatus and method for spread spectrum receiver |
US5832028A (en) | 1994-09-09 | 1998-11-03 | Omnipoint Corporation | Method and apparatus for coherent serial correlation of a spread spectrum signal |
US5754585A (en) | 1994-09-09 | 1998-05-19 | Omnipoint Corporation | Method and apparatus for serial noncoherent correlation of a spread spectrum signal |
US5692007A (en) | 1994-09-09 | 1997-11-25 | Omnipoint Corporation | Method and apparatus for differential phase encoding and decoding in spread-spectrum communication systems with continuous-phase modulation |
US5881100A (en) | 1994-09-09 | 1999-03-09 | Omnipoint Corporation | Method and apparatus for coherent correlation of a spread spectrum signal |
US5953370A (en) | 1994-09-09 | 1999-09-14 | Omnipoint Corporation | Apparatus for receiving and correlating a spread spectrum signal |
US5648982A (en) | 1994-09-09 | 1997-07-15 | Omnipoint Corporation | Spread spectrum transmitter |
US5627856A (en) | 1994-09-09 | 1997-05-06 | Omnipoint Corporation | Method and apparatus for receiving and despreading a continuous phase-modulated spread spectrum signal using self-synchronizing correlators |
US5754584A (en) | 1994-09-09 | 1998-05-19 | Omnipoint Corporation | Non-coherent spread-spectrum continuous-phase modulation communication system |
US5757847A (en) | 1994-09-09 | 1998-05-26 | Omnipoint Corporation | Method and apparatus for decoding a phase encoded signal |
US5856998A (en) | 1994-09-09 | 1999-01-05 | Omnipoint Corporation | Method and apparatus for correlating a continuous phase modulated spread spectrum signal |
US5963586A (en) | 1994-09-09 | 1999-10-05 | Omnipoint Corporation | Method and apparatus for parallel noncoherent correlation of a spread spectrum signal |
US5610940A (en) | 1994-09-09 | 1997-03-11 | Omnipoint Corporation | Method and apparatus for noncoherent reception and correlation of a continous phase modulated signal |
US6334219B1 (en) * | 1994-09-26 | 2001-12-25 | Adc Telecommunications Inc. | Channel selection for a hybrid fiber coax network |
USRE42236E1 (en) | 1995-02-06 | 2011-03-22 | Adc Telecommunications, Inc. | Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing |
US7280564B1 (en) | 1995-02-06 | 2007-10-09 | Adc Telecommunications, Inc. | Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing |
US5689502A (en) * | 1995-06-05 | 1997-11-18 | Omnipoint Corporation | Efficient frequency division duplex communication system with interleaved format and timing adjustment control |
US5745484A (en) | 1995-06-05 | 1998-04-28 | Omnipoint Corporation | Efficient communication system using time division multiplexing and timing adjustment control |
US5959980A (en) | 1995-06-05 | 1999-09-28 | Omnipoint Corporation | Timing adjustment control for efficient time division duplex communication |
US5802046A (en) * | 1995-06-05 | 1998-09-01 | Omnipoint Corporation | Efficient time division duplex communication system with interleaved format and timing adjustment control |
US6041046A (en) * | 1995-07-14 | 2000-03-21 | Omnipoint Corporation | Cyclic time hopping in time division multiple access communication system |
JP3780551B2 (ja) | 1996-01-29 | 2006-05-31 | ソニー株式会社 | 多元接続による信号送信方法及び装置 |
US6134215A (en) * | 1996-04-02 | 2000-10-17 | Qualcomm Incorpoated | Using orthogonal waveforms to enable multiple transmitters to share a single CDM channel |
US6101176A (en) * | 1996-07-24 | 2000-08-08 | Nokia Mobile Phones | Method and apparatus for operating an indoor CDMA telecommunications system |
US5757846A (en) * | 1996-08-30 | 1998-05-26 | Vasudevan; Subramanian | CDMA communication system and method with dual-mode receiver |
US6243372B1 (en) | 1996-11-14 | 2001-06-05 | Omnipoint Corporation | Methods and apparatus for synchronization in a wireless network |
US6085076A (en) * | 1997-04-07 | 2000-07-04 | Omnipoint Corporation | Antenna diversity for wireless communication system |
US5867525A (en) * | 1997-06-10 | 1999-02-02 | L-3 Commuications Corporation | Synchronizer and method therefor and communications system incorporating same |
DE29710331U1 (de) * | 1997-06-13 | 1997-08-14 | TechniSat Digital GmbH, 01462 Mobschatz | Satellitenübertragungssystem zur digitalen Datenübertragung über Unterträgerfrequenzen |
US6081536A (en) | 1997-06-20 | 2000-06-27 | Tantivy Communications, Inc. | Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link |
US6542481B2 (en) | 1998-06-01 | 2003-04-01 | Tantivy Communications, Inc. | Dynamic bandwidth allocation for multiple access communication using session queues |
US6005889A (en) * | 1997-07-17 | 1999-12-21 | Nokia | Pseudo-random noise detector for signals having a carrier frequency offset |
US6205131B1 (en) | 1997-12-16 | 2001-03-20 | Sony Corporation | Broadband implementation of supplemental code channel carrier phase offsets |
US7496072B2 (en) | 1997-12-17 | 2009-02-24 | Interdigital Technology Corporation | System and method for controlling signal strength over a reverse link of a CDMA wireless communication system |
US7936728B2 (en) | 1997-12-17 | 2011-05-03 | Tantivy Communications, Inc. | System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system |
US6222832B1 (en) * | 1998-06-01 | 2001-04-24 | Tantivy Communications, Inc. | Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system |
US7079523B2 (en) * | 2000-02-07 | 2006-07-18 | Ipr Licensing, Inc. | Maintenance link using active/standby request channels |
US7394791B2 (en) | 1997-12-17 | 2008-07-01 | Interdigital Technology Corporation | Multi-detection of heartbeat to reduce error probability |
US9525923B2 (en) | 1997-12-17 | 2016-12-20 | Intel Corporation | Multi-detection of heartbeat to reduce error probability |
KR100407355B1 (ko) * | 1998-02-14 | 2004-04-03 | 삼성전자주식회사 | 이동통신시스템의역방향링크시간정렬장치및방법 |
US6188716B1 (en) | 1998-03-02 | 2001-02-13 | Pan Atlantic Corporation | Radio and communication method using a transmitted intermediate frequency |
US7221664B2 (en) * | 1998-06-01 | 2007-05-22 | Interdigital Technology Corporation | Transmittal of heartbeat signal at a lower level than heartbeat request |
US8134980B2 (en) | 1998-06-01 | 2012-03-13 | Ipr Licensing, Inc. | Transmittal of heartbeat signal at a lower level than heartbeat request |
US7773566B2 (en) | 1998-06-01 | 2010-08-10 | Tantivy Communications, Inc. | System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system |
US6215780B1 (en) * | 1998-07-17 | 2001-04-10 | Motorola, Inc. | Method and system for synchronous code division multiplexed communications |
JP3031341B2 (ja) * | 1998-07-28 | 2000-04-10 | 日本電気株式会社 | ランダムアクセスチャネル用受信装置 |
US6965778B1 (en) | 1999-04-08 | 2005-11-15 | Ipr Licensing, Inc. | Maintenance of channel usage in a wireless communication system |
US6765894B1 (en) * | 1999-07-05 | 2004-07-20 | Matsushita Electric Industrial Co, Ltd. | Communication terminal apparatus and base station apparatus |
US6882631B1 (en) * | 1999-09-13 | 2005-04-19 | Qualcomm Incorporated | Method and apparatus for overlaying two CDMA systems on the same frequency bandwidth |
CN1154269C (zh) * | 1999-09-28 | 2004-06-16 | 西门子(中国)有限公司 | 在码分多址移动通信***中保持上链同步的方法和*** |
DE19953486C2 (de) * | 1999-11-06 | 2003-08-14 | Siemens Ag | Verfahren zur Synchronisation einer Signalübertragung in Aufwärtsrichtung in einem Funk-Kommunikationssystem |
KR100980343B1 (ko) | 2000-02-07 | 2010-09-06 | 아이피알 라이센싱, 인코포레이티드 | 액티브/대기 요청 채널을 사용하는 유지 링크 |
AU3673001A (en) | 2000-02-07 | 2001-08-14 | Tantivy Communications, Inc. | Minimal maintenance link to support synchronization |
EP1257077A4 (en) * | 2000-02-17 | 2005-01-19 | Linkair Comm Inc | METHOD FOR STRIP TAPE MULTIPLEX ACCESS CODING WITH A ZERO CORRELATION WINDOW |
FR2806158B1 (fr) * | 2000-03-07 | 2002-05-17 | Commissariat Energie Atomique | Procede pour determiner la position ou l'orientation d'un objet a l'aide d'un champ magnetique et dispositif correspondant |
FR2807589B1 (fr) * | 2000-04-07 | 2003-08-29 | Cit Alcatel | Procede d'ajustement des instants d'emission dans un systeme de radiocommunications mobiles |
US8155096B1 (en) | 2000-12-01 | 2012-04-10 | Ipr Licensing Inc. | Antenna control system and method |
US7551663B1 (en) | 2001-02-01 | 2009-06-23 | Ipr Licensing, Inc. | Use of correlation combination to achieve channel detection |
US6954448B2 (en) | 2001-02-01 | 2005-10-11 | Ipr Licensing, Inc. | Alternate channel for carrying selected message types |
SG185139A1 (en) | 2001-06-13 | 2012-11-29 | Ipr Licensing Inc | Transmittal of heartbeat signal at a lower level than heartbeat request |
JP3527501B1 (ja) * | 2002-11-08 | 2004-05-17 | 松下電器産業株式会社 | 無線通信基地局装置および遅延プロファイル平均化方法 |
JP4387773B2 (ja) * | 2003-11-25 | 2009-12-24 | アルプス電気株式会社 | 容量検出回路及び検出方法並びにそれを用いた指紋センサ |
US8199791B2 (en) * | 2005-06-08 | 2012-06-12 | Polycom, Inc. | Mixed voice and spread spectrum data signaling with enhanced concealment of data |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3511430A1 (de) * | 1985-03-29 | 1986-10-02 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren zur synchronisierung der empfangseinrichtungen in einem digitalen multiplex-uebertragungssystem |
US4893318A (en) * | 1988-01-26 | 1990-01-09 | Computer Sports Medicine, Inc. | Method for referencing multiple data processors to a common time reference |
JPH07112189B2 (ja) * | 1989-12-07 | 1995-11-29 | 日本電気株式会社 | 信号検出方式 |
US5103459B1 (en) * | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
US5164958A (en) * | 1991-05-22 | 1992-11-17 | Cylink Corporation | Spread spectrum cellular handoff method |
US5235615A (en) * | 1991-05-22 | 1993-08-10 | Cylink Corporation | Spread spectrum method |
US5177765A (en) * | 1991-06-03 | 1993-01-05 | Spectralink Corporation | Direct-sequence spread-spectrum digital signal acquisition and tracking system and method therefor |
US5268933A (en) * | 1991-09-27 | 1993-12-07 | Motorola, Inc. | Data packet alignment in a communication system |
US5257404A (en) * | 1991-10-04 | 1993-10-26 | Motorola, Inc. | Simulcast synchronization and equalization system and method therefor |
DE69218913T2 (de) * | 1992-01-31 | 1997-07-17 | Cit Alcatel | Verfahren zur Bestimmung der Laufzeit zwischen einer entfernten Endstation und einer zentralen Endstation, in einem bidirektionalen Punkt-zu-Mehrpunkt-Übertragungssystem |
US5329547A (en) * | 1993-03-11 | 1994-07-12 | Motorola, Inc. | Method and apparatus for coherent communication in a spread-spectrum communication system |
-
1993
- 1993-11-30 US US08/159,633 patent/US5446727A/en not_active Expired - Lifetime
-
1994
- 1994-11-03 RU RU95116289A patent/RU2122290C1/ru active
- 1994-11-03 BR BR9405751A patent/BR9405751A/pt not_active IP Right Cessation
- 1994-11-03 CN CN941910407A patent/CN1065094C/zh not_active Expired - Lifetime
- 1994-11-03 GB GB9515712A patent/GB2290200B/en not_active Expired - Lifetime
- 1994-11-03 WO PCT/US1994/012635 patent/WO1995015626A1/en active IP Right Grant
- 1994-11-03 JP JP51560495A patent/JP3565856B2/ja not_active Expired - Lifetime
- 1994-11-03 SG SG1996003819A patent/SG69960A1/en unknown
- 1994-11-03 EP EP95930323A patent/EP0695484B1/en not_active Expired - Lifetime
- 1994-11-03 DE DE4499436A patent/DE4499436B3/de not_active Expired - Lifetime
- 1994-11-03 KR KR1019950703144A patent/KR0177268B1/ko not_active IP Right Cessation
-
1995
- 1995-07-12 FI FI953407A patent/FI112746B/fi not_active IP Right Cessation
- 1995-07-27 SE SE9502704A patent/SE521574C2/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE4499436B3 (de) | 2005-07-28 |
BR9405751A (pt) | 1995-12-05 |
GB2290200B (en) | 1998-07-22 |
EP0695484B1 (en) | 2000-07-26 |
JPH10508435A (ja) | 1998-08-18 |
US5446727A (en) | 1995-08-29 |
GB9515712D0 (en) | 1995-10-11 |
JP3565856B2 (ja) | 2004-09-15 |
GB2290200A (en) | 1995-12-13 |
FI953407A (fi) | 1995-07-12 |
CN1116889A (zh) | 1996-02-14 |
FI112746B (fi) | 2003-12-31 |
EP0695484A1 (en) | 1996-02-07 |
SE9502704L (sv) | 1995-09-29 |
KR960700595A (ko) | 1996-01-20 |
RU2122290C1 (ru) | 1998-11-20 |
FI953407A0 (fi) | 1995-07-12 |
KR0177268B1 (ko) | 1999-05-15 |
SG69960A1 (en) | 2000-01-25 |
SE9502704D0 (sv) | 1995-07-27 |
SE521574C2 (sv) | 2003-11-11 |
EP0695484A4 (en) | 1997-09-03 |
WO1995015626A1 (en) | 1995-06-08 |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: MOTOROLA MOBILE CO., LTD. Free format text: FORMER OWNER: MOTOROLA INC. Effective date: 20101231 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20101231 Address after: Illinois Instrunment Patentee after: Motorola Mobility LLC Address before: Illinois Patentee before: Motorola Inc. |
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C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20141103 Granted publication date: 20010425 |