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ITRM920645A1 - Ricevitore e trasmettitore radio atti a funzionare in diversita' - Google Patents

Ricevitore e trasmettitore radio atti a funzionare in diversita'

Info

Publication number
ITRM920645A1
ITRM920645A1 IT000645A ITRM920645A ITRM920645A1 IT RM920645 A1 ITRM920645 A1 IT RM920645A1 IT 000645 A IT000645 A IT 000645A IT RM920645 A ITRM920645 A IT RM920645A IT RM920645 A1 ITRM920645 A1 IT RM920645A1
Authority
IT
Italy
Prior art keywords
diversity
receiver
work
radio transmitter
transmitter suitable
Prior art date
Application number
IT000645A
Other languages
English (en)
Inventor
Andrew William Drewry Watson
Original Assignee
Motorola Ltd
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 Ltd filed Critical Motorola Ltd
Publication of ITRM920645A0 publication Critical patent/ITRM920645A0/it
Publication of ITRM920645A1 publication Critical patent/ITRM920645A1/it
Application granted granted Critical
Publication of IT1258477B publication Critical patent/IT1258477B/it

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
    • H04B7/0891—Space-time diversity
    • H04B7/0894—Space-time diversity using different delays between antennas
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0671—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different delays between antennas
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
ITRM920645A 1991-09-07 1992-09-04 Ricevitore e trasmettitore radio atti a funzionare in diversita' IT1258477B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9119194A GB2259430B (en) 1991-09-07 1991-09-07 Radio receiver and transmitter providing diversity

Publications (3)

Publication Number Publication Date
ITRM920645A0 ITRM920645A0 (it) 1992-09-04
ITRM920645A1 true ITRM920645A1 (it) 1994-03-04
IT1258477B IT1258477B (it) 1996-02-26

Family

ID=10701102

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM920645A IT1258477B (it) 1991-09-07 1992-09-04 Ricevitore e trasmettitore radio atti a funzionare in diversita'

Country Status (12)

Country Link
JP (1) JPH06169273A (it)
KR (1) KR930007119A (it)
AU (1) AU2098192A (it)
CA (1) CA2076290A1 (it)
DE (1) DE4229573A1 (it)
FI (1) FI923987A7 (it)
FR (1) FR2682838B1 (it)
GB (1) GB2259430B (it)
IL (1) IL102817A (it)
IT (1) IT1258477B (it)
PL (1) PL174158B1 (it)
SE (1) SE9202541L (it)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659572A (en) 1993-11-22 1997-08-19 Interdigital Technology Corporation Phased array spread spectrum system and method
US5614914A (en) 1994-09-06 1997-03-25 Interdigital Technology Corporation Wireless telephone distribution system with time and space diversity transmission for determining receiver location
GB9424341D0 (en) * 1994-12-02 1995-01-18 Philips Electronics Uk Ltd Receiver diversity
DE19581876T1 (de) * 1994-12-29 1997-11-27 Motorola Inc Digitaler Aufwärtswandler/Modulator mit Mehrfachzugriff und Verfahren
US5579341A (en) * 1994-12-29 1996-11-26 Motorola, Inc. Multi-channel digital transceiver and method
GB2299488A (en) * 1995-03-16 1996-10-02 Motorola Ltd Radio antenna arrangement
JPH0974372A (ja) * 1995-09-04 1997-03-18 Matsushita Electric Ind Co Ltd スペクトラム拡散無線伝送受信装置
DE19539312A1 (de) * 1995-10-23 1997-04-24 Grundig Emv Verfahren zur Erhöhung der Übertragungssicherheit bei Funkalarmanlagen
EP0870370A1 (en) * 1995-12-28 1998-10-14 Qualcomm Incorporated Method and apparatus for providing antenna diversity in a portable radiotelephone
JPH10247869A (ja) * 1997-03-04 1998-09-14 Nec Corp ダイバーシティ回路
US5926503A (en) * 1997-08-27 1999-07-20 Motorola, Inc. DS-CDMA receiver and forward link diversity method
GB2332124B (en) * 1997-12-05 2002-07-17 British Broadcasting Corp Digital radio communication system
DE69940111D1 (de) 1999-02-16 2009-01-29 Mitsubishi Electric Corp Funkübertragungssystem, sender und empfänger
JP3379465B2 (ja) * 1999-03-03 2003-02-24 日本電気株式会社 無線通信システム及びそれに用いる基地局並びに移動機
DE10026538A1 (de) * 2000-05-27 2001-11-29 Deutsche Telekom Ag Verfahren und Diversity-Empfangsvorrichtung zum Empfangen eines Mehrträger-Signals
US6748024B2 (en) * 2001-03-28 2004-06-08 Nokia Corporation Non-zero complex weighted space-time code for multiple antenna transmission
JP4731055B2 (ja) * 2001-06-29 2011-07-20 パナソニック株式会社 無線通信装置及び無線通信方法
US8233555B2 (en) * 2004-05-17 2012-07-31 Qualcomm Incorporated Time varying delay diversity of OFDM
US20060293006A1 (en) * 2004-07-28 2006-12-28 Tomohiko Taniguchi Diversity type receiver apparatus and receiving method
GB2423441A (en) * 2005-02-22 2006-08-23 Cambridge Silicon Radio Ltd Reducing signal paths required in an antenna diversity system
GB2427338B (en) * 2005-06-17 2010-01-20 Univ Cambridge Tech Restoring corrupted audio signals
EP1949558B1 (en) 2005-10-05 2015-01-14 Telecom Italia S.p.A. Method and system for multiple antenna communications, related apparatus and corresponding computer program product
JP2010183171A (ja) 2009-02-03 2010-08-19 Toshiba Corp 受信機
JP2010187188A (ja) * 2009-02-12 2010-08-26 Softbank Mobile Corp 無線中継装置及び無線中継システム
GB2472074B (en) * 2009-07-24 2012-05-16 Vodafone Plc System and method utilising transmit diversity
GB2482761B (en) * 2011-06-17 2015-12-23 Airwave Solutions Ltd Communications system, apparatus and method
US9800315B2 (en) * 2013-10-10 2017-10-24 Sony Corporation Reception apparatus, reception method, and program
WO2021026655A1 (en) 2019-08-13 2021-02-18 Nanowave Technologies Inc. Transposed delay line oscillator and method
JP7486305B2 (ja) * 2019-11-22 2024-05-17 日本無線株式会社 無線受信装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB854720A (en) * 1958-05-12 1960-11-23 Lenkurt Electric Co Inc Improvements in or relating to electrical diversity signalling systems
JPS5255310A (en) * 1975-10-30 1977-05-06 Kokusai Denshin Denwa Co Ltd Phase control circuit
US4160952A (en) * 1978-05-12 1979-07-10 Bell Telephone Laboratories, Incorporated Space diversity receiver with combined step and continuous phase control
FR2628914B1 (fr) * 1988-03-18 1990-06-29 Alcatel Thomson Faisceaux Recepteur pour systeme de transmission par voie hertzienne a diversite d'espace, comprenant un combineur de diversite
FR2628913B1 (fr) * 1988-03-18 1990-06-29 Alcatel Thomson Faisceaux Recepteur pour systeme de transmission par voie hertzienne a diversite d'espace
GB2237706A (en) * 1989-11-03 1991-05-08 Racal Res Ltd Radio communications link with diversity

Also Published As

Publication number Publication date
KR930007119A (ko) 1993-04-22
DE4229573A1 (de) 1993-04-15
IL102817A0 (en) 1993-02-21
PL295855A1 (en) 1993-05-04
IL102817A (en) 1996-01-19
HK1001340A1 (en) 1998-06-12
FI923987A0 (fi) 1992-09-04
FR2682838A1 (fr) 1993-04-23
GB9119194D0 (en) 1991-10-23
JPH06169273A (ja) 1994-06-14
SE9202541L (sv) 1993-03-08
CA2076290A1 (en) 1993-03-08
GB2259430B (en) 1996-05-01
AU2098192A (en) 1993-03-11
GB2259430A (en) 1993-03-10
FI923987A7 (fi) 1993-03-08
ITRM920645A0 (it) 1992-09-04
IT1258477B (it) 1996-02-26
SE9202541D0 (sv) 1992-09-04
FR2682838B1 (fr) 1996-07-12
PL174158B1 (pl) 1998-06-30

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960722