DE69225274T2 - Maximalwahrscheinlichkeitsfolgeschätzung für Mobilzellenfunkempfänger - Google Patents

Maximalwahrscheinlichkeitsfolgeschätzung für Mobilzellenfunkempfänger

Info

Publication number
DE69225274T2
DE69225274T2 DE69225274T DE69225274T DE69225274T2 DE 69225274 T2 DE69225274 T2 DE 69225274T2 DE 69225274 T DE69225274 T DE 69225274T DE 69225274 T DE69225274 T DE 69225274T DE 69225274 T2 DE69225274 T2 DE 69225274T2
Authority
DE
Germany
Prior art keywords
maximum likelihood
likelihood sequence
reversed
time
permits
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 - Fee Related
Application number
DE69225274T
Other languages
English (en)
Other versions
DE69225274D1 (de
Inventor
Michael I Parr
John L Watson
T G Vishwanath
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.)
DirecTV Group Inc
Original Assignee
Hughes Aircraft Co
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
Application filed by Hughes Aircraft Co filed Critical Hughes Aircraft Co
Application granted granted Critical
Publication of DE69225274D1 publication Critical patent/DE69225274D1/de
Publication of DE69225274T2 publication Critical patent/DE69225274T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04L25/20—Repeater circuits; Relay circuits
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/025—Channel estimation channel estimation algorithms using least-mean-square [LMS] method
    • 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
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03273—Arrangements for operating in conjunction with other apparatus with carrier recovery circuitry
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry
DE69225274T 1991-06-27 1992-06-23 Maximalwahrscheinlichkeitsfolgeschätzung für Mobilzellenfunkempfänger Expired - Fee Related DE69225274T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/722,440 US5263026A (en) 1991-06-27 1991-06-27 Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver

Publications (2)

Publication Number Publication Date
DE69225274D1 DE69225274D1 (de) 1998-06-04
DE69225274T2 true DE69225274T2 (de) 1999-01-14

Family

ID=24901847

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69225274T Expired - Fee Related DE69225274T2 (de) 1991-06-27 1992-06-23 Maximalwahrscheinlichkeitsfolgeschätzung für Mobilzellenfunkempfänger

Country Status (11)

Country Link
US (4) US5263026A (de)
EP (1) EP0520969B1 (de)
JP (1) JPH0828751B2 (de)
KR (1) KR960006476B1 (de)
AT (1) ATE165702T1 (de)
AU (3) AU643147B2 (de)
CA (1) CA2068964A1 (de)
DE (1) DE69225274T2 (de)
FI (1) FI922388A (de)
NO (1) NO922363L (de)
TW (1) TW201372B (de)

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NO922363D0 (no) 1992-06-16
KR960006476B1 (ko) 1996-05-16
AU1854592A (en) 1993-01-07
AU650206B2 (en) 1994-06-09
FI922388A (fi) 1992-12-28
ATE165702T1 (de) 1998-05-15
DE69225274D1 (de) 1998-06-04
AU4607993A (en) 1993-11-25
AU643147B2 (en) 1993-11-04
TW201372B (de) 1993-03-01
KR930001609A (ko) 1993-01-16
FI922388A0 (fi) 1992-05-25
US5563888A (en) 1996-10-08
CA2068964A1 (en) 1992-12-28
AU650593B2 (en) 1994-06-23
US5471501A (en) 1995-11-28
AU4609993A (en) 1993-11-25
EP0520969A3 (en) 1993-10-13
JPH05327785A (ja) 1993-12-10
NO922363L (no) 1992-12-28
US5263026A (en) 1993-11-16
EP0520969B1 (de) 1998-04-29
JPH0828751B2 (ja) 1996-03-21
EP0520969A2 (de) 1992-12-30
US5537419A (en) 1996-07-16

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