DE69531042T2 - Verfahren und einrichtung zum kohärenten empfang von nachrichten in einem spreizspektrum-übertragungssystem - Google Patents

Verfahren und einrichtung zum kohärenten empfang von nachrichten in einem spreizspektrum-übertragungssystem

Info

Publication number
DE69531042T2
DE69531042T2 DE69531042T DE69531042T DE69531042T2 DE 69531042 T2 DE69531042 T2 DE 69531042T2 DE 69531042 T DE69531042 T DE 69531042T DE 69531042 T DE69531042 T DE 69531042T DE 69531042 T2 DE69531042 T2 DE 69531042T2
Authority
DE
Germany
Prior art keywords
transmission system
receiving messages
spectrum transmission
spreading spectrum
coherently receiving
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
Application number
DE69531042T
Other languages
English (en)
Other versions
DE69531042D1 (de
Inventor
Fuyun Ling
A Sexton
Gene Bruckert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Mobility LLC
Original Assignee
Motorola Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US08/317,501 external-priority patent/US5659573A/en
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of DE69531042D1 publication Critical patent/DE69531042D1/de
Application granted granted Critical
Publication of DE69531042T2 publication Critical patent/DE69531042T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7087—Carrier synchronisation 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • H04J3/0605—Special codes used as synchronising signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • 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
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • H04L27/2276—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using frequency multiplication or harmonic tracking
    • 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
    • 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
    • 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
    • H04B2201/70705—Rate detection
DE69531042T 1994-10-04 1995-07-31 Verfahren und einrichtung zum kohärenten empfang von nachrichten in einem spreizspektrum-übertragungssystem Expired - Lifetime DE69531042T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/317,501 US5659573A (en) 1994-10-04 1994-10-04 Method and apparatus for coherent reception in a spread-spectrum receiver
US08/396,453 US5619524A (en) 1994-10-04 1995-02-28 Method and apparatus for coherent communication reception in a spread-spectrum communication system
PCT/US1995/009774 WO1996010879A1 (en) 1994-10-04 1995-07-31 Method and apparatus for coherent communication reception in a spread-spectrum communication system

Publications (2)

Publication Number Publication Date
DE69531042D1 DE69531042D1 (de) 2003-07-17
DE69531042T2 true DE69531042T2 (de) 2003-12-11

Family

ID=26980993

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69531042T Expired - Lifetime DE69531042T2 (de) 1994-10-04 1995-07-31 Verfahren und einrichtung zum kohärenten empfang von nachrichten in einem spreizspektrum-übertragungssystem

Country Status (11)

Country Link
US (1) US5619524A (de)
EP (1) EP0732022B1 (de)
JP (1) JP3679415B2 (de)
CN (1) CN1149802C (de)
BR (1) BR9506385A (de)
CA (1) CA2176945C (de)
DE (1) DE69531042T2 (de)
FI (1) FI113227B (de)
IL (1) IL114836A (de)
PL (1) PL314846A1 (de)
WO (1) WO1996010879A1 (de)

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EP0732022B1 (de) 2003-06-11
FI962326A (fi) 1996-06-04
JP3679415B2 (ja) 2005-08-03
US5619524A (en) 1997-04-08
DE69531042D1 (de) 2003-07-17
CA2176945C (en) 2000-06-06
PL314846A1 (en) 1996-09-30
FI113227B (fi) 2004-03-15
JPH09507014A (ja) 1997-07-08
IL114836A (en) 1998-12-27
FI962326A0 (fi) 1996-06-04
WO1996010879A1 (en) 1996-04-11
EP0732022A1 (de) 1996-09-18
CN1136378A (zh) 1996-11-20
IL114836A0 (en) 1995-12-08
EP0732022A4 (de) 2000-11-29
BR9506385A (pt) 1997-09-16
CN1149802C (zh) 2004-05-12
CA2176945A1 (en) 1996-04-11

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