GB1357779A - Mobile radio systems - Google Patents

Mobile radio systems

Info

Publication number
GB1357779A
GB1357779A GB5990571A GB5990571A GB1357779A GB 1357779 A GB1357779 A GB 1357779A GB 5990571 A GB5990571 A GB 5990571A GB 5990571 A GB5990571 A GB 5990571A GB 1357779 A GB1357779 A GB 1357779A
Authority
GB
United Kingdom
Prior art keywords
tone
output
fades
receiver
mobile station
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
Application number
GB5990571A
Other languages
English (en)
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.)
AT&T Corp
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB1357779A publication Critical patent/GB1357779A/en
Expired 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602—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 antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
GB5990571A 1970-12-29 1971-12-23 Mobile radio systems Expired GB1357779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10242270A 1970-12-29 1970-12-29

Publications (1)

Publication Number Publication Date
GB1357779A true GB1357779A (en) 1974-06-26

Family

ID=22289766

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5990571A Expired GB1357779A (en) 1970-12-29 1971-12-23 Mobile radio systems

Country Status (6)

Country Link
US (1) US3693088A (cg-RX-API-DMAC7.html)
JP (1) JPS5226647B1 (cg-RX-API-DMAC7.html)
DE (1) DE2165019C3 (cg-RX-API-DMAC7.html)
FR (1) FR2120092B1 (cg-RX-API-DMAC7.html)
GB (1) GB1357779A (cg-RX-API-DMAC7.html)
SE (1) SE379614B (cg-RX-API-DMAC7.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178270A (en) * 1985-06-29 1987-02-04 Oki Electric Ind Co Ltd Signal strength detecting in radio communications
GB2221820A (en) * 1988-06-15 1990-02-14 Matsushita Electric Works Ltd Polarization diversity radio communication system

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2233765B1 (cg-RX-API-DMAC7.html) * 1973-06-15 1978-06-30 Cit Alcatel
JPS5147313A (cg-RX-API-DMAC7.html) * 1974-10-21 1976-04-22 Nippon Telegraph & Telephone
US4057761A (en) * 1975-12-30 1977-11-08 Rca Corporation Received signal selecting system with priority control
GB1514422A (en) * 1976-01-12 1978-06-14 Mel Equipment Co Ltd Aircraft antenna-switching control arrangements
US4287598A (en) * 1979-12-17 1981-09-01 Bell Telephone Laboratories, Incorporated Cooperating arrangement for diversity stations
US4383332A (en) * 1980-11-21 1983-05-10 Bell Telephone Laboratories, Incorporated High capacity digital mobile radio system
US4513412A (en) * 1983-04-25 1985-04-23 At&T Bell Laboratories Time division adaptive retransmission technique for portable radio telephones
US4661993A (en) * 1984-10-12 1987-04-28 At&T Company Technique for improving radio system performance during fading
SE465990B (sv) * 1990-04-10 1991-11-25 Ericsson Telefon Ab L M Foerfarande foer antennval i ett mobilradiosystem
SE466179B (sv) * 1990-05-10 1992-01-07 Ericsson Telefon Ab L M Foerfarande foer att i ett tidsmultiplext radiokommunikationssystem oeverfoera olika kommandon avseende val av saendarantenn
US5179559A (en) * 1990-07-27 1993-01-12 Motorola, Inc. Handoff method for a cellular system
US5231629A (en) * 1990-10-01 1993-07-27 Motorola, Inc. Full-duplex communication system
US5193091A (en) * 1990-12-12 1993-03-09 Motorola, Inc. Tdm communication system for a wide area site and a plurality of local sites
JPH0528144U (ja) * 1991-09-18 1993-04-09 パイオニア株式会社 受信機
US5379449A (en) * 1992-11-23 1995-01-03 Ford Motor Company Automotive radio employing multipath correction strategy based on vehicle speed
DE4303355A1 (de) * 1993-02-05 1994-08-11 Philips Patentverwaltung Funksystem
US5812935A (en) * 1993-04-17 1998-09-22 Hughes Electronics Cellular system employing base station transmit diversity according to transmission quality level
SG66285A1 (en) * 1993-04-29 1999-07-20 Ericsson Inc Use of diversity transmission to relax adjacent channel requirements in mobile telephone systems
US5689439A (en) * 1995-03-31 1997-11-18 Lucent Technologies, Inc. Switched antenna diversity transmission method and system
US6438360B1 (en) * 1999-07-22 2002-08-20 Motorola, Inc. Amplifier system with load control to produce an amplitude envelope
US6917790B1 (en) 1999-10-29 2005-07-12 Amc Centurion Ab Antenna device and method for transmitting and receiving radio waves
SE516536C2 (sv) * 1999-10-29 2002-01-29 Allgon Ab Antennanordning omkopplingsbar mellan ett flertal konfigurationstillstånd i avhängighet av två driftsparametrar samt därtill hörande metod
SE516535C2 (sv) 1999-10-29 2002-01-29 Allgon Ab Antennanordning omkopplingsbar mellan ett flertal konfigurationslägen anpassade för användning i olika operationsmiljöer samt därtill hörande förfarande
DE60030954T2 (de) * 2000-04-25 2007-02-01 Siemens Ag Empfänger mit Antennendiversity
US6961545B2 (en) 2001-04-09 2005-11-01 Atheros Communications, Inc. Method and system for providing antenna diversity
JP3932906B2 (ja) * 2002-01-23 2007-06-20 日本電気株式会社 基地局装置及びそれを用いた移動通信システム
US9893715B2 (en) * 2013-12-09 2018-02-13 Shure Acquisition Holdings, Inc. Adaptive self-tunable antenna system and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178270A (en) * 1985-06-29 1987-02-04 Oki Electric Ind Co Ltd Signal strength detecting in radio communications
GB2178270B (en) * 1985-06-29 1989-07-19 Oki Electric Ind Co Ltd Apparatus for judging the quality of mobile data communication
GB2221820A (en) * 1988-06-15 1990-02-14 Matsushita Electric Works Ltd Polarization diversity radio communication system
GB2221820B (en) * 1988-06-15 1992-09-16 Matsushita Electric Works Ltd Polarisation diversity radio communication system

Also Published As

Publication number Publication date
DE2165019C3 (de) 1981-05-14
DE2165019B2 (de) 1980-07-03
FR2120092B1 (cg-RX-API-DMAC7.html) 1977-01-28
JPS5226647B1 (cg-RX-API-DMAC7.html) 1977-07-15
DE2165019A1 (de) 1972-07-06
US3693088A (en) 1972-09-19
FR2120092A1 (cg-RX-API-DMAC7.html) 1972-08-11
SE379614B (cg-RX-API-DMAC7.html) 1975-10-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee