IT1259030B - Metodo e dispositivi per il controllo automatico di guadagno in un sistema di trasmissione radio digitale in diversita' di spazio e/o angolo - Google Patents

Metodo e dispositivi per il controllo automatico di guadagno in un sistema di trasmissione radio digitale in diversita' di spazio e/o angolo

Info

Publication number
IT1259030B
IT1259030B ITMI921269A ITMI921269A IT1259030B IT 1259030 B IT1259030 B IT 1259030B IT MI921269 A ITMI921269 A IT MI921269A IT MI921269 A ITMI921269 A IT MI921269A IT 1259030 B IT1259030 B IT 1259030B
Authority
IT
Italy
Prior art keywords
angle
transmission system
gain control
automatic gain
radio transmission
Prior art date
Application number
ITMI921269A
Other languages
English (en)
Original Assignee
Alcatel Italia
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 Alcatel Italia filed Critical Alcatel Italia
Priority to ITMI921269A priority Critical patent/IT1259030B/it
Publication of ITMI921269A0 publication Critical patent/ITMI921269A0/it
Priority to EP93108066A priority patent/EP0572859A1/en
Priority to NO931845A priority patent/NO931845L/no
Priority to JP5145734A priority patent/JPH06169270A/ja
Publication of ITMI921269A1 publication Critical patent/ITMI921269A1/it
Application granted granted Critical
Publication of IT1259030B publication Critical patent/IT1259030B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • 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
    • H04B7/0848—Joint weighting
    • H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
    • 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
    • H04B7/0848—Joint weighting
    • H04B7/0851—Joint weighting using training sequences or error signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)

Abstract

Metodo per il controllo automatico di guadagno di un sistema di trasmissione radio digitale in diversità di spazio e/o angolo in cui si rivelano i due segnali ricevuti, le due tensioni sono confrontate; e si fa comandare il livello di amplificazione da quell'unico segnale che dal confronto, risulta avere di volta in volta la potenza ricevuta più alta (fra i due).
ITMI921269A 1992-05-25 1992-05-25 Metodo e dispositivi per il controllo automatico di guadagno in un sistema di trasmissione radio digitale in diversita' di spazio e/o angolo IT1259030B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ITMI921269A IT1259030B (it) 1992-05-25 1992-05-25 Metodo e dispositivi per il controllo automatico di guadagno in un sistema di trasmissione radio digitale in diversita' di spazio e/o angolo
EP93108066A EP0572859A1 (en) 1992-05-25 1993-05-18 Method and device for automatic gain control in a space/angle diversity digital radio receiver
NO931845A NO931845L (no) 1992-05-25 1993-05-21 Fremgangsm}te og anordning for automatisk styring
JP5145734A JPH06169270A (ja) 1992-05-25 1993-05-25 空間差および、または角度差におけるデジタル無線伝送システムの自動利得制御方法および装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI921269A IT1259030B (it) 1992-05-25 1992-05-25 Metodo e dispositivi per il controllo automatico di guadagno in un sistema di trasmissione radio digitale in diversita' di spazio e/o angolo

Publications (3)

Publication Number Publication Date
ITMI921269A0 ITMI921269A0 (it) 1992-05-25
ITMI921269A1 ITMI921269A1 (it) 1993-11-25
IT1259030B true IT1259030B (it) 1996-03-11

Family

ID=11363374

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI921269A IT1259030B (it) 1992-05-25 1992-05-25 Metodo e dispositivi per il controllo automatico di guadagno in un sistema di trasmissione radio digitale in diversita' di spazio e/o angolo

Country Status (4)

Country Link
EP (1) EP0572859A1 (it)
JP (1) JPH06169270A (it)
IT (1) IT1259030B (it)
NO (1) NO931845L (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040214540A1 (en) * 2003-04-22 2004-10-28 Dockemeyer J. Robert Radio receiver with optimized multiple variable gain circuits

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL234320A (it) * 1957-12-19
PH10896A (en) * 1972-06-01 1977-09-30 Commw Of Australia Diversity radio receiver
JPS5683146A (en) * 1979-10-31 1981-07-07 Nec Corp Synthesizing system of pass band optimum ratio in diversity communication
JPS60254841A (ja) * 1984-05-31 1985-12-16 Fujitsu Ltd フエ−ジング等化方式

Also Published As

Publication number Publication date
ITMI921269A1 (it) 1993-11-25
EP0572859A1 (en) 1993-12-08
ITMI921269A0 (it) 1992-05-25
JPH06169270A (ja) 1994-06-14
NO931845D0 (no) 1993-05-21
NO931845L (no) 1993-11-26

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Legal Events

Date Code Title Description
0001 Granted