CN1319284C - 在采用电压选通信号的通信系统中进行相干解调的方法和装置 - Google Patents

在采用电压选通信号的通信系统中进行相干解调的方法和装置 Download PDF

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Publication number
CN1319284C
CN1319284C CNB008117365A CN00811736A CN1319284C CN 1319284 C CN1319284 C CN 1319284C CN B008117365 A CNB008117365 A CN B008117365A CN 00811736 A CN00811736 A CN 00811736A CN 1319284 C CN1319284 C CN 1319284C
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China
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estimated value
central frequency
frequency
frequency estimated
rate
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Expired - Fee Related
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CNB008117365A
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English (en)
Chinese (zh)
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CN1370353A (zh
Inventor
陈道
林育全
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Qualcomm Inc
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Qualcomm Inc
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Publication of CN1370353A publication Critical patent/CN1370353A/zh
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Publication of CN1319284C publication Critical patent/CN1319284C/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • 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
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0055—Closed loops single phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H04L2027/0093—Intermittant signals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Optical Communication System (AREA)
CNB008117365A 1999-08-12 2000-08-10 在采用电压选通信号的通信系统中进行相干解调的方法和装置 Expired - Fee Related CN1319284C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/372,726 1999-08-12
US09/372,726 US6594286B2 (en) 1999-08-12 1999-08-12 Method and apparatus for coherent demodulation in communication system employing a potentially gated pilot signal

Publications (2)

Publication Number Publication Date
CN1370353A CN1370353A (zh) 2002-09-18
CN1319284C true CN1319284C (zh) 2007-05-30

Family

ID=23469374

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB008117365A Expired - Fee Related CN1319284C (zh) 1999-08-12 2000-08-10 在采用电压选通信号的通信系统中进行相干解调的方法和装置

Country Status (10)

Country Link
US (2) US6594286B2 (https=)
EP (1) EP1203455B1 (https=)
JP (1) JP2003507926A (https=)
KR (3) KR100775794B1 (https=)
CN (1) CN1319284C (https=)
AT (1) ATE306750T1 (https=)
AU (1) AU6903400A (https=)
DE (1) DE60023152T2 (https=)
HK (1) HK1046790B (https=)
WO (1) WO2001013533A1 (https=)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6545989B1 (en) * 1998-02-19 2003-04-08 Qualcomm Incorporated Transmit gating in a wireless communication system
US6304563B1 (en) * 1999-04-23 2001-10-16 Qualcomm Incorporated Method and apparatus for processing a punctured pilot channel
US6996080B1 (en) * 1999-07-23 2006-02-07 Itt Manufacturing Enterprises, Inc. Chip-synchronous CDMA multiplexer and method resulting in constant envelope signals
US6594286B2 (en) * 1999-08-12 2003-07-15 Qualcomm Incorporated Method and apparatus for coherent demodulation in communication system employing a potentially gated pilot signal
US6628702B1 (en) * 2000-06-14 2003-09-30 Qualcomm, Incorporated Method and apparatus for demodulating signals processed in a transmit diversity mode
US20020071479A1 (en) * 2000-10-27 2002-06-13 L-3 Communications Corporation Use of common waveform in forward and reverse channels to reduce cost in point-to-multipoint system and to provide point-to-point mode
US7010073B2 (en) * 2001-01-19 2006-03-07 Qualcomm, Incorporated Delay lock loops for wireless communication systems
JP2002247462A (ja) * 2001-02-15 2002-08-30 Funai Electric Co Ltd 受信装置
US7586837B2 (en) * 2001-12-14 2009-09-08 Qualcomm Incorporated Acquisition of a gated pilot signal
US7298776B2 (en) * 2001-12-14 2007-11-20 Qualcomm Incorporated Acquisition of a gated pilot signal with coherent and noncoherent integration
US7522689B2 (en) * 2002-09-23 2009-04-21 Telefonaktiebolaget L M Ericsson (Publ) Clock recovery in communication systems
US6859434B2 (en) * 2002-10-01 2005-02-22 Comsys Communication & Signal Processing Ltd. Data transfer scheme in a communications system incorporating multiple processing elements
US7319705B1 (en) 2002-10-22 2008-01-15 Marvell International Ltd. Programmable pre-emphasis circuit for serial ATA
KR100949959B1 (ko) * 2002-12-31 2010-03-29 엘지전자 주식회사 부호비트 펑처링/디펑처링 방법
AU2004203711B2 (en) * 2003-01-07 2007-10-11 Samsung Electronics Co., Ltd. Apparatus and method for controlling an output buffer in a Hybrid Automatic Repeat Request(HARQ) mobile communication system
US20040152479A1 (en) * 2003-01-31 2004-08-05 Rainbolt Bradley J. Data channel procedure for systems employing frequency diversity
KR101033568B1 (ko) 2004-02-06 2011-05-11 엘지전자 주식회사 시간 트래킹 장치 및 방법
US8060050B2 (en) * 2004-06-04 2011-11-15 Broadcom Corporation Method and system for analog and digital RF receiver interface
US8693383B2 (en) 2005-03-29 2014-04-08 Qualcomm Incorporated Method and apparatus for high rate data transmission in wireless communication
US9749885B2 (en) * 2013-05-31 2017-08-29 Avago Technologies General Ip (Singapore) Pte. Ltd. Location determination using pilots signals in a wireless local area network (WLAN)
US12063063B2 (en) * 2021-09-16 2024-08-13 L3Harris Technologies, Inc. Rake receiver and related methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452327A (en) * 1993-12-28 1995-09-19 Unisys Corporation Programmable randomly tunable digital demodulator
US5619524A (en) * 1994-10-04 1997-04-08 Motorola, Inc. Method and apparatus for coherent communication reception in a spread-spectrum communication system
WO1998049790A1 (en) * 1997-04-30 1998-11-05 Motorola Inc. Method and apparatus for transmission and reception of a transmission rate in a cdma communication system
WO1999031837A1 (en) * 1997-12-12 1999-06-24 Thomson Licensing S.A. Tdma wireless telephone system with independently tracked demodulation parameters

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268691A (en) * 1970-03-13 1993-12-07 Raytheon Company Local oscillator frequency control means for semiactive missile guidance and control system
US5281973A (en) * 1970-03-13 1994-01-25 Raytheon Company Local oscillator frequency control means for semiactive missile guidance and control system
US5038115A (en) * 1990-05-29 1991-08-06 Myers Glen A Method and apparatus for frequency independent phase tracking of input signals in receiving systems and the like
US6023491A (en) * 1994-06-21 2000-02-08 Matsushita Electric Industrail Co., Ltd. Demodulation apparatus performing different frequency control functions using separately provided oscillators
US5696797A (en) * 1994-07-22 1997-12-09 Motorola, Inc. Demodulator with baseband doppler shift compensation and method
US5920555A (en) 1994-07-28 1999-07-06 Roke Manor Research Limited Pilot assisted direct sequence spread spectrum synchronization apparatus
US5659573A (en) * 1994-10-04 1997-08-19 Motorola, Inc. Method and apparatus for coherent reception in a spread-spectrum receiver
US6111911A (en) * 1995-06-07 2000-08-29 Sanconix, Inc Direct sequence frequency ambiguity resolving receiver
US5943606A (en) * 1996-09-30 1999-08-24 Qualcomm Incorporated Determination of frequency offsets in communication systems
US6058147A (en) * 1997-03-03 2000-05-02 Telogy Networks, Inc. Intelligent carrier acquisition method for satellite communications
US6594286B2 (en) * 1999-08-12 2003-07-15 Qualcomm Incorporated Method and apparatus for coherent demodulation in communication system employing a potentially gated pilot signal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452327A (en) * 1993-12-28 1995-09-19 Unisys Corporation Programmable randomly tunable digital demodulator
US5619524A (en) * 1994-10-04 1997-04-08 Motorola, Inc. Method and apparatus for coherent communication reception in a spread-spectrum communication system
WO1998049790A1 (en) * 1997-04-30 1998-11-05 Motorola Inc. Method and apparatus for transmission and reception of a transmission rate in a cdma communication system
WO1999031837A1 (en) * 1997-12-12 1999-06-24 Thomson Licensing S.A. Tdma wireless telephone system with independently tracked demodulation parameters

Also Published As

Publication number Publication date
US6594286B2 (en) 2003-07-15
KR100793653B1 (ko) 2008-01-10
DE60023152T2 (de) 2006-07-13
CN1370353A (zh) 2002-09-18
KR20020019970A (ko) 2002-03-13
AU6903400A (en) 2001-03-13
EP1203455B1 (en) 2005-10-12
US20030210757A1 (en) 2003-11-13
ATE306750T1 (de) 2005-10-15
EP1203455A1 (en) 2002-05-08
WO2001013533A1 (en) 2001-02-22
KR100823060B1 (ko) 2008-04-21
US6807157B2 (en) 2004-10-19
HK1046790A1 (en) 2003-01-24
JP2003507926A (ja) 2003-02-25
KR100775794B1 (ko) 2007-11-12
HK1046790B (zh) 2007-10-26
DE60023152D1 (de) 2006-02-23
US20020186708A1 (en) 2002-12-12
KR20070087251A (ko) 2007-08-27
KR20070039976A (ko) 2007-04-13

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070530

Termination date: 20110810