DE69430720T2 - Verfahren und einrichtung zur kohärenten kommunikation in einem spreizspektrum-kommunikationssystem - Google Patents

Verfahren und einrichtung zur kohärenten kommunikation in einem spreizspektrum-kommunikationssystem

Info

Publication number
DE69430720T2
DE69430720T2 DE69430720T DE69430720T DE69430720T2 DE 69430720 T2 DE69430720 T2 DE 69430720T2 DE 69430720 T DE69430720 T DE 69430720T DE 69430720 T DE69430720 T DE 69430720T DE 69430720 T2 DE69430720 T2 DE 69430720T2
Authority
DE
Germany
Prior art keywords
communication system
coherent
spreading spectrum
communication
spectrum communication
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
DE69430720T
Other languages
English (en)
Other versions
DE69430720D1 (de
Inventor
Fuyun Ling
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21858459&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69430720(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of DE69430720D1 publication Critical patent/DE69430720D1/de
Publication of DE69430720T2 publication Critical patent/DE69430720T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • 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
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
DE69430720T 1993-03-11 1994-02-16 Verfahren und einrichtung zur kohärenten kommunikation in einem spreizspektrum-kommunikationssystem Expired - Lifetime DE69430720T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/031,258 US5329547A (en) 1993-03-11 1993-03-11 Method and apparatus for coherent communication in a spread-spectrum communication system
PCT/US1994/001746 WO1994021065A1 (en) 1993-03-11 1994-02-16 Method and apparatus for coherent communication in a spread-spectrum communication system

Publications (2)

Publication Number Publication Date
DE69430720D1 DE69430720D1 (de) 2002-07-11
DE69430720T2 true DE69430720T2 (de) 2002-12-05

Family

ID=21858459

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69430720T Expired - Lifetime DE69430720T2 (de) 1993-03-11 1994-02-16 Verfahren und einrichtung zur kohärenten kommunikation in einem spreizspektrum-kommunikationssystem

Country Status (14)

Country Link
US (1) US5329547A (de)
EP (1) EP0643889B1 (de)
JP (1) JP3464002B2 (de)
CN (1) CN1048606C (de)
BR (1) BR9404420A (de)
CA (1) CA2134230C (de)
DE (1) DE69430720T2 (de)
FI (1) FI112010B (de)
MY (1) MY125586A (de)
PL (1) PL174713B1 (de)
SE (1) SE520542C2 (de)
SG (1) SG46295A1 (de)
TW (1) TW295754B (de)
WO (1) WO1994021065A1 (de)

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Also Published As

Publication number Publication date
CA2134230A1 (en) 1994-09-15
TW295754B (de) 1997-01-11
DE69430720D1 (de) 2002-07-11
EP0643889A4 (de) 1997-12-10
SG46295A1 (en) 1998-02-20
CA2134230C (en) 1999-09-21
SE520542C2 (sv) 2003-07-22
FI945336A0 (fi) 1994-11-11
FI112010B (fi) 2003-10-15
PL174713B1 (pl) 1998-09-30
EP0643889A1 (de) 1995-03-22
FI945336A (fi) 1994-11-11
CN1105510A (zh) 1995-07-19
SE9403860L (sv) 1994-12-27
BR9404420A (pt) 1999-06-15
US5329547A (en) 1994-07-12
MY125586A (en) 2006-08-30
EP0643889B1 (de) 2002-06-05
JP3464002B2 (ja) 2003-11-05
SE9403860D0 (sv) 1994-11-10
WO1994021065A1 (en) 1994-09-15
JPH07506713A (ja) 1995-07-20
CN1048606C (zh) 2000-01-19
PL306002A1 (en) 1995-02-20

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