DE3473105D1 - Frequency control for point-to-multipoint radio - Google Patents

Frequency control for point-to-multipoint radio

Info

Publication number
DE3473105D1
DE3473105D1 DE8484306112T DE3473105T DE3473105D1 DE 3473105 D1 DE3473105 D1 DE 3473105D1 DE 8484306112 T DE8484306112 T DE 8484306112T DE 3473105 T DE3473105 T DE 3473105T DE 3473105 D1 DE3473105 D1 DE 3473105D1
Authority
DE
Germany
Prior art keywords
node
frequency
outstations
frequency control
point
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
DE8484306112T
Other languages
German (de)
English (en)
Inventor
Michael Timothy Helmsle Hewitt
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Application granted granted Critical
Publication of DE3473105D1 publication Critical patent/DE3473105D1/de
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
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • 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
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Radio Relay Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Small-Scale Networks (AREA)
DE8484306112T 1983-09-07 1984-09-06 Frequency control for point-to-multipoint radio Expired DE3473105D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838323966A GB8323966D0 (en) 1983-09-07 1983-09-07 Frequency control for point-to-multipoint radio

Publications (1)

Publication Number Publication Date
DE3473105D1 true DE3473105D1 (en) 1988-09-01

Family

ID=10548427

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484306112T Expired DE3473105D1 (en) 1983-09-07 1984-09-06 Frequency control for point-to-multipoint radio

Country Status (7)

Country Link
US (1) US4670889A (enExample)
EP (1) EP0138366B1 (enExample)
JP (1) JPS60150330A (enExample)
AT (1) ATE36104T1 (enExample)
CA (1) CA1232025A (enExample)
DE (1) DE3473105D1 (enExample)
GB (1) GB8323966D0 (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817197A (en) * 1986-07-18 1989-03-28 Nippon Telegraph And Telephone Corporation Mobile communication apparatus
US5255291A (en) * 1988-11-14 1993-10-19 Stratacom, Inc. Microprocessor based packet isochronous clocking transmission system and method
US5249305A (en) * 1989-09-27 1993-09-28 Motorola, Inc. Radio frequency error detection and correction system
WO1991005410A1 (en) * 1989-09-27 1991-04-18 Motorola, Inc. Method and apparatus for adjusting the frequency of a two-way radio
US5168575A (en) * 1990-09-28 1992-12-01 Motorola, Inc. Demand driven wide-area radio system resource assignment method and apparatus
JP3269577B2 (ja) * 1991-10-02 2002-03-25 モトローラ・インコーポレイテッド ビット誤り率検出方法
US6006069A (en) * 1994-11-28 1999-12-21 Bosch Telecom Gmbh Point-to-multipoint communications system
US6112056A (en) 1995-06-07 2000-08-29 Cisco Systems, Inc. Low power, short range point-to-multipoint communications system
DE19613489C2 (de) * 1996-04-04 2001-09-27 Esw Extel Systems Wedel Ges Fu Verfahren zur Übertragung von bidirektionalen Daten zwischen der Zentrale und den Teilnehmern eines Gefechtsübungszentrums
DE19705395C2 (de) * 1997-02-13 1999-12-23 Mikom Gmbh Repeater
DE19737758A1 (de) * 1997-08-29 1999-03-04 Bosch Gmbh Robert Verfahren zum Einstellen der Sendeträgerfrequenz in einer Teilnehmerstation eines Punkt-zu-Mehrpunkt Funkübertragungssystem
US6240276B1 (en) * 1998-04-28 2001-05-29 Ericsson Inc. Compensating for errors in tuning frequency of a global positioning satellite (GPS) receiver
US6603958B1 (en) * 2000-02-09 2003-08-05 Nortel Networks Limited Method and apparatus for a carrier frequency control in a wireless communication system
US6947748B2 (en) 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
MXPA03005307A (es) * 2000-12-15 2004-12-02 Adaptix Inc Comunicaciones de multiportadores con asignacion de subportadora con base en grupos.
KR100742580B1 (ko) * 2002-10-30 2007-08-02 리서치 인 모션 리미티드 데이터 통신 서비스를 이용가능하게 하는 통신 네트워크를선택하는 방법 및 장치
US7573851B2 (en) * 2004-12-07 2009-08-11 Adaptix, Inc. Method and system for switching antenna and channel assignments in broadband wireless networks
KR101257066B1 (ko) * 2005-09-06 2013-04-22 한국전자통신연구원 직교 주파수 분할 다중화 셀룰러 시스템에서 셀 간 간섭완화를 위한 하향 링크의 자원 분할, 할당 방법 및 송수신방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195047A (en) * 1961-12-29 1965-07-13 Bell Telephone Labor Inc Frequency modulation communication system having automatic frequency deviation adjustng means
GB1074824A (en) * 1965-03-05 1967-07-05 British Broadcasting Corp Improvements in and relating to the synchronising of periodic signals
BE754157A (fr) * 1969-07-31 1971-02-01 Siemens Ag Montage pour la compensation de composantes parasites de tension continue lors de la demodulation de signaux de donnees binaires
US3654395A (en) * 1969-10-15 1972-04-04 Communications Satellite Corp Synchronization of tdma space division satellite system
US4061979A (en) * 1975-10-20 1977-12-06 Digital Communications Corporation Phase locked loop with pre-set and squelch
US4231114A (en) * 1978-02-27 1980-10-28 Motorola, Inc. Synchronizing means for a two-way communication system
US4188582A (en) * 1978-04-10 1980-02-12 Motorola, Inc. Simulcast transmission system having phase-locked remote transmitters
NL7810171A (nl) * 1978-10-10 1980-04-14 Philips Nv Vaste post voor een systeem voor mobiele datacommuni- catie.
JPS57148432A (en) * 1981-03-09 1982-09-13 Nec Corp Frequency synchronization system
US4520508A (en) * 1982-12-21 1985-05-28 General Instrument Corporation Subscriber terminal for monitoring radio-frequency signal ingress into cable television systems

Also Published As

Publication number Publication date
CA1232025A (en) 1988-01-26
EP0138366A2 (en) 1985-04-24
EP0138366A3 (en) 1985-06-19
GB8323966D0 (en) 1983-10-12
JPH0242255B2 (enExample) 1990-09-21
US4670889A (en) 1987-06-02
EP0138366B1 (en) 1988-07-27
ATE36104T1 (de) 1988-08-15
JPS60150330A (ja) 1985-08-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee