Patents
Sitemap › H04 - Electric communication technique › H04W - Wireless communication networks › H04W 74 - Wireless channel access, e.g. scheduled or random access
Patents for H04W 74 - Wireless channel access, e.g. scheduled or random access (19,423)
06/1992
06/02/1992US5119375 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
05/1992
05/26/1992US5117423 Data transmission over a time division duplex channel
05/20/1992EP0486362A1 Method for data transmission between mobile stations or autonomous vehicles
05/19/1992US5115233 Shared data/voice communication system with programmable data priority
05/15/1992CA2055335A1 Method for the transmission of data among mobile bodies or autonomous vehicles
05/13/1992EP0485351A1 A method of avoiding interference between a first and a second message in a mobile telephone system
05/06/1992EP0483546A1 Methods for polling mobile users in a multiple cell wireless network
05/06/1992EP0483545A1 Scheduling methods for efficient frequency reuse in a multi-cell wireless network served by a wired local area network
04/1992
04/29/1992EP0482050A1 Cellular radio system.
04/28/1992US5109393 Mobile communications system insensitive to false frame sync
04/07/1992US5103448 Simultaneous ringing control in the time division duplex telecommunications system
03/1992
03/18/1992EP0475698A2 Method for managing radio communication resources
03/10/1992US5095530 Radio telephone system switching control capability of control channels
03/03/1992US5093927 Two-way communication system
02/1992
02/11/1992US5088094 Accessing of transmission channels of a communication system
02/04/1992US5086506 Radio trunking fault detection system with power output monitoring and on-air monitoring
01/1992
01/29/1992EP0468569A2 A method of operating a communications system, a communications system and a secondary station for use in the system
01/14/1992US5081704 Method of arranging radio control channels in mobile communications
09/1991
09/10/1991US5047762 Method and apparatus for increasing co-channel utilization in a multi-station data communications network with overlapping coverage
08/1991
08/27/1991CA1288184C Telephone registration and cancellation control in a wide area cordless telephone system
08/06/1991US5038342 TDM/FDM communication system supporting both TDM and FDM-only communication units
07/1991
07/30/1991CA1287195C Wide area cordless telephone system having means for avoiding double registrations
07/25/1991DE4001832A1 Channel search in digital radio transmission - uses transmitting radio station, and examining allocated radio channels for signal-free state
07/16/1991CA1286429C Time division multiple access radio communication system
07/09/1991US5031098 Transaction control system including portable data terminal and mobile customer service station
06/1991
06/04/1991US5022024 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
05/1991
05/02/1991WO1991006156A1 Two-way communication system
04/1991
04/20/1991WO1991006162A1 Method and device in a digital communication network
04/16/1991US5008883 Communication system
04/09/1991CA1282838C Colocated cellular radiotelephone systems
04/03/1991CN1012314B Method of converting and controlling channel in radio telephone system
03/1991
03/27/1991EP0419244A2 Method of arranging radio control channels in mobile communications
03/27/1991EP0418865A2 Wireless signal transmission system with random access
03/13/1991EP0211849B1 Pager system and communication protocol
02/1991
02/20/1991EP0413369A1 A portable pager
02/13/1991EP0412574A2 Antenna for watch pager system
02/06/1991CN1011561B Base station for wireless digital telephone system
01/1991
01/24/1991WO1991001073A1 Cellular radio system
01/22/1991US4987571 Data communication system with prioritized periodic and aperiodic messages
01/16/1991EP0408086A2 Watch pager system
01/16/1991EP0408026A2 Mobile communications system insensitive to false frame sync
01/09/1991EP0407367A2 Method and arrangement for dynamically allocating time slots to connections in a digital mobile radio system
12/1990
12/11/1990US4977589 Signalling and control protocol for a communication system
11/1990
11/28/1990EP0399612A2 Data transmission over a time division duplex channel
11/20/1990US4972507 Radio data protocol communications system and method
10/1990
10/10/1990CN1046078A Communications systems
10/03/1990EP0390333A2 Communications systems
09/1990
09/30/1990CA2012368A1 Communications systems
09/25/1990CA1274597A1 Communication system capable of interruption talk during data transmission
08/1990
08/14/1990US4949395 Method and arrangement for dynamically allocating time slots to connections in a digital mobile radio system
07/1990
07/25/1990CN1008962B Subscriber rf telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of rf channels
07/10/1990CA1271548A1 Distributed switching architecture
07/03/1990CA1271224A1 Vox remote unit control in a cellular system
06/1990
06/27/1990EP0375067A1 Power economising in multiple user radio systems
06/27/1990EP0374212A1 Multiple access communications system
06/26/1990US4937818 Time division multiple access radio communication system
06/26/1990EP0299040A4 Vox remote unit control in a cellular system.
05/1990
05/30/1990EP0370826A2 Signalling and control protocol for a communication system
05/16/1990CN1042279A Method of converting and controlling channel in radio telephone system
03/1990
03/27/1990US4912705 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
02/1990
02/13/1990US4901313 A-point to multi-points communication system
01/1990
01/09/1990US4893327 Colocated cellular radiotelephone systems
12/1989
12/12/1989US4887265 Packet-switched cellular telephone system
11/1989
11/22/1989CN1037437A 通信系统 Communications systems
11/07/1989US4879740 Wide area cordless telephone system having means for avoiding double registrations
11/02/1989WO1989010668A1 Multiple access communications system
11/02/1989EP0339740A2 Communication system
09/1989
09/26/1989CA1260636A1 Watch pager system and communication protocol
09/20/1989EP0332818A2 Cellular telephone system with shared radio data channels
09/12/1989US4866788 Process for controlling retransmission of messages from transmitting stations belonging to a cellular system
06/1989
06/28/1989EP0321672A2 Transmission trunked radio system with voice buffering and off-line dialing
05/1989
05/23/1989US4833702 Telephone registration and cancellation control in a wide area cordless telephone system
04/1989
04/11/1989US4821310 Transmission trunked radio system with voice buffering and off-line dialing
03/1989
03/28/1989US4817089 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
03/22/1989EP0307962A2 Time division multiple access radio communication system
03/21/1989US4815073 Accessing of transmission channels of a communication system
02/1989
02/28/1989CA1250673A1 Subscriber rf telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of rf channels
02/22/1989CN1031305A Base station for wireless digital telephone system
01/1989
01/25/1989EP0300721A2 Colocated cellular radiotelephone systems
01/18/1989EP0299040A1 Vox remote unit control in a cellular system.
01/17/1989US4799253 Colocated cellular radiotelephone systems
12/1988
12/20/1988US4792948 For a communication network
11/1988
11/17/1988EP0291068A2 Telephone registration and cancellation control in a wide area cordless telephone system
11/15/1988US4785450 Apparatus and method for obtaining frequency agility in digital communication systems
10/1988
10/25/1988US4780715 Communication system capable of interruption talk during data transmission
10/11/1988US4777633 Base station for wireless digital telephone system
10/05/1988EP0285522A1 Method for call management in a radio network with a plurality of interconnected stations operating at the same frequency by means of a server
10/05/1988EP0285165A2 Wide area cordless telephone system having means for avoiding double registrations
10/04/1988US4775998 Method of assigning voice radio channels
08/1988
08/11/1988WO1988005987A1 Vox remote unit control in a cellular system
06/1988
06/14/1988US4751725 VOX remote unit control in a cellular system
06/08/1988EP0270391A1 Control method for the retransmission of messages from transmitting stations belonging to a cellular system
12/1987
12/15/1987US4713808 Watch pager system and communication protocol
06/1987
06/23/1987US4675863 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
03/1987
03/04/1987EP0211849A1 Pager system and communication protocol.
02/1987
02/24/1987US4646082 Inbound acknowledgement stack
02/17/1987CA1218114A1 Deterministic multi-access method for a decentralized mobile radio system
12/1986
12/16/1986CA1215450A1 Method of access control in a communication system
12/03/1986EP0110888B1 A cordless telephone system
10/1986
10/15/1986CN86100949A Subscriber rf telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of rf channels
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