GB2217955B - Communications systems - Google Patents

Communications systems

Info

Publication number
GB2217955B
GB2217955B GB8909015A GB8909015A GB2217955B GB 2217955 B GB2217955 B GB 2217955B GB 8909015 A GB8909015 A GB 8909015A GB 8909015 A GB8909015 A GB 8909015A GB 2217955 B GB2217955 B GB 2217955B
Authority
GB
United Kingdom
Prior art keywords
communications systems
communications
systems
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
GB8909015A
Other versions
GB2217955A (en
GB8909015D0 (en
Inventor
John Duncan Harvey
Philip Whitehead
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.)
DOWTY INFORMATION SYSTEMS
Original Assignee
DOWTY INFORMATION SYSTEMS
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 DOWTY INFORMATION SYSTEMS filed Critical DOWTY INFORMATION SYSTEMS
Publication of GB8909015D0 publication Critical patent/GB8909015D0/en
Publication of GB2217955A publication Critical patent/GB2217955A/en
Application granted granted Critical
Publication of GB2217955B publication Critical patent/GB2217955B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/02—Hybrid access
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H04W74/0891—Non-scheduled access, e.g. ALOHA using a dedicated channel for access for synchronized access

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
GB8909015A 1988-04-20 1989-04-20 Communications systems Expired - Fee Related GB2217955B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888809258A GB8809258D0 (en) 1988-04-20 1988-04-20 Communications systems

Publications (3)

Publication Number Publication Date
GB8909015D0 GB8909015D0 (en) 1989-06-07
GB2217955A GB2217955A (en) 1989-11-01
GB2217955B true GB2217955B (en) 1992-09-02

Family

ID=10635471

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888809258A Pending GB8809258D0 (en) 1988-04-20 1988-04-20 Communications systems
GB8909015A Expired - Fee Related GB2217955B (en) 1988-04-20 1989-04-20 Communications systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888809258A Pending GB8809258D0 (en) 1988-04-20 1988-04-20 Communications systems

Country Status (3)

Country Link
EP (1) EP0374212A1 (en)
GB (2) GB8809258D0 (en)
WO (1) WO1989010668A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8809258D0 (en) * 1988-04-20 1988-05-25 Dowty Information Systems Ltd Communications systems
US5124985A (en) * 1988-12-13 1992-06-23 Small Power Communication Systems Research Laboratories Co., Ltd. Radiocommunication system using time-division digital frames
SE464955B (en) * 1989-11-03 1991-07-01 Ericsson Telefon Ab L M PROCEDURE TO CLASSIFY A FRAMEWORK STRUCTURE IN A MOBILE STATION
EP0453591B1 (en) * 1990-04-24 1994-10-12 Small Power Communication Systems Research Laboratories Co., Ltd. Radiocommunication system using time-division digital frames
GB9022682D0 (en) * 1990-10-18 1990-11-28 British Telecomm Passive optical network
GB9024684D0 (en) * 1990-11-13 1991-01-02 Cognito Group Ltd A method of communicating data
GB2260877B (en) * 1991-10-26 1995-09-06 Motorola Ltd Method of access in trunked communications system
GB2281470B (en) * 1993-04-02 1998-07-15 Motorola Ltd Multichannel random access communications system
ES2164063T3 (en) * 1993-09-17 2002-02-16 Cit Alcatel COMMUNICATION PROTOCOL FOR A MOBILE COMMUNICATION SYSTEM.
JPH0818535A (en) * 1994-06-29 1996-01-19 Sony Corp Transmitter-receiver of tdma system
GB2306083B (en) * 1995-10-06 1998-01-28 Nippon Telegraph & Telephone TDMA communication system
FI960987A (en) 1996-03-01 1997-09-02 Nokia Telecommunications Oy Method for controlling a base station and a base station

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374212A1 (en) * 1988-04-20 1990-06-27 Cray Systems Integration Limited Multiple access communications system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2165127B (en) * 1984-09-26 1988-04-07 Philips Electronic Associated Multiple access communications system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374212A1 (en) * 1988-04-20 1990-06-27 Cray Systems Integration Limited Multiple access communications system

Also Published As

Publication number Publication date
GB2217955A (en) 1989-11-01
WO1989010668A1 (en) 1989-11-02
EP0374212A1 (en) 1990-06-27
GB8809258D0 (en) 1988-05-25
GB8909015D0 (en) 1989-06-07

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930420