FR2679085B1 - Systeme et procede de calcul du gain de canal et de la variance du bruit d'un canal de communication. - Google Patents

Systeme et procede de calcul du gain de canal et de la variance du bruit d'un canal de communication.

Info

Publication number
FR2679085B1
FR2679085B1 FR9208044A FR9208044A FR2679085B1 FR 2679085 B1 FR2679085 B1 FR 2679085B1 FR 9208044 A FR9208044 A FR 9208044A FR 9208044 A FR9208044 A FR 9208044A FR 2679085 B1 FR2679085 B1 FR 2679085B1
Authority
FR
France
Prior art keywords
channel
noise variance
calculating
communication channel
channel gain
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
FR9208044A
Other languages
English (en)
Other versions
FR2679085A1 (fr
Inventor
Bruce D Mueller
Kevin L Baum
David E Borth
Phillip D Rasky
Eric H Winter
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 Solutions Inc
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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of FR2679085A1 publication Critical patent/FR2679085A1/fr
Application granted granted Critical
Publication of FR2679085B1 publication Critical patent/FR2679085B1/fr
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
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • 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
    • 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
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • 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
    • 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
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/067—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing soft decisions, i.e. decisions together with an estimate of reliability

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
  • Radio Transmission System (AREA)
  • Analogue/Digital Conversion (AREA)
  • Mobile Radio Communication Systems (AREA)
FR9208044A 1991-07-02 1992-06-30 Systeme et procede de calcul du gain de canal et de la variance du bruit d'un canal de communication. Expired - Fee Related FR2679085B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/724,663 US5214675A (en) 1991-07-02 1991-07-02 System and method for calculating channel gain and noise variance of a communication channel

Publications (2)

Publication Number Publication Date
FR2679085A1 FR2679085A1 (fr) 1993-01-15
FR2679085B1 true FR2679085B1 (fr) 1996-08-02

Family

ID=24911346

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9208044A Expired - Fee Related FR2679085B1 (fr) 1991-07-02 1992-06-30 Systeme et procede de calcul du gain de canal et de la variance du bruit d'un canal de communication.

Country Status (13)

Country Link
US (2) US5214675A (fr)
JP (1) JP3112029B2 (fr)
KR (1) KR960012425B1 (fr)
CN (1) CN1027213C (fr)
AU (1) AU1919392A (fr)
CA (1) CA2087520C (fr)
DE (2) DE4292231C2 (fr)
FR (1) FR2679085B1 (fr)
GB (1) GB2263048B (fr)
IT (1) IT1254400B (fr)
MX (1) MX9203905A (fr)
SE (1) SE502305C2 (fr)
WO (1) WO1993001673A1 (fr)

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Also Published As

Publication number Publication date
DE4292231C2 (de) 1995-11-16
US5214675A (en) 1993-05-25
US5379324A (en) 1995-01-03
WO1993001673A1 (fr) 1993-01-21
SE9203808D0 (sv) 1992-12-18
CN1027213C (zh) 1994-12-28
GB2263048B (en) 1996-02-28
KR930702842A (ko) 1993-09-09
JPH06501366A (ja) 1994-02-10
FR2679085A1 (fr) 1993-01-15
ITRM920475A0 (it) 1992-06-22
SE9203808L (sv) 1993-01-03
CA2087520C (fr) 1998-12-22
GB2263048A (en) 1993-07-07
CA2087520A1 (fr) 1993-01-03
AU1919392A (en) 1993-02-11
GB9303638D0 (en) 1993-04-28
KR960012425B1 (ko) 1996-09-20
MX9203905A (es) 1993-01-01
CN1068228A (zh) 1993-01-20
SE502305C2 (sv) 1995-10-02
ITRM920475A1 (it) 1993-12-22
DE4292231T1 (de) 1993-10-07
JP3112029B2 (ja) 2000-11-27
IT1254400B (it) 1995-09-14

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Effective date: 20070228