Matches 201 - 249 out of 249 < 1 2 3 4 5
Match Document Document Title
EP0465443B1 A method in connection with handoff in a mobile communication system  
Abstract of EP0465443 The invention relates to a method in connection with handoff in a mobile radio communication system comprising at least one mobile station and a set of base stations (BS1,...
5412659 Inter-cellular interference detection by canceling data corruption events reported by mobile stations  
Within a cell of a TDMA mobile communication system, each mobile station transmits a control message on an up-link frame. On receiving it, the base station determines if the message quality is...
5408516 Device and method for telephony interconnection intended to offer continuity of service to independent stations in a communications network  
In a communications network between fixed stations and fixed terminals, the said fixed stations being linked to the telephony channels while the fixed terminals include an antenna for mutual...
EP0513308B1 A RADIO SYSTEM  
Abstract not available for EP0513308 Abstract of corresponding document: WO9210886 The invention relates to a radio system comprising several base stations (BS1, BS2, BS3), at least one mobile...
5396645 System and method for determining whether to assign a macrocell or microcell communication frequency to a mobile communication terminal  
A system and method are provided for determining whether to assign a macrocell communication frequency or a microcell communication frequency to a particular mobile communication terminal for a...
5390234 Dynamic tracking of mobile stations in wireless networks  
A method of tracking mobile stations in a cellular network. A mobile station will report to a base station only when the mobile station is turned on and only after having made a minimum number of...
5390166 Method for recovering a data signal using diversity in a radio frequency, time division multiple access communication system  
In a time division multiple access (TDMA) system (10), a method (50, 60) of recovering a data signal of a transmission burst commences by obtaining the frequency transmission codes for the...
5375123 Allocation of channels using interference estimation  
The present invention relates to systems and methods for allocating channels in a radiotelephone system wherein local estimation of interference for a potential new connection is achieved by...
5357559 Listening control channel in a cellular mobile radiotelephone system  
A cellular mobile radiotelephone system listens for call accesses on a control channel of an umbrella cell and on a control channel of a microcell located within said umbrella cell and responds to...
5355515 Method and apparatus for estimating initial time alignment in a cellular communications network  
A method and apparatus for use in a cellular mobile radio telephone system for initially setting a time alignment parameter in a mobile station. The method comprises the steps of estimating an...
5353288 Device for selecting reception signals as a function of their power  
A device is provided for selecting reception signals as a function of their power, the reception signals being identified by their frequency and being structured into frames made up by a number of...
5345467 CDMA cellular hand-off apparatus and method  
An apparatus for controlling hand-off in a spread-spectrum-CDMA-communications system, for radio devices moving from one cell to another, with each cell having a base station transmitting spread...
5335356 Adaptive resource allocation in a mobile telephone system  
Transmission quality of an ongoing call in a mobile radiotelephone system is monitored by measuring parameters indicative of transmission quality, evaluating transmission quality according to the...
5327577 Handover method for mobile radio system  
The invention relates to a method in mobile radio systems in which the responsibility for transmitting message information to a mobile station (MS 1 , MS 2 ) is handed over from at least a first...
5325419 Wireless digital personal communications system having voice/data/image two-way calling and intercell hand-off  
A wireless digital personal communications system (or PCS) having a plurality of intelligent base stations and portable handset terminals, each having a predetermined radio cell coverage area. The...
5305308 Wireless access telephone-to-telephone network interface architecture  
A wireless-access communications system, such as a CDMA cellular radio-telephone system (FIG. 2), comprises a packet-switched communications network (202, 207, 201) that interconnects cells (base...
5303289 Communication transfer in a cellular radiotelephone system  
During the handoff of a mobile unit (225) between a serving or source base-site (200) and a selected target base-site, (205 or 210) the target base-site (205 or 210) is directed to tune to and...
5295152 TDMA for mobile access in a CDMA system  
A method and system for increasing the capacity of radiotelephone communication systems by eliminating interference to communication traffic caused by random access bursts from unconnected mobile...
5293380 Frame synchronization system among multiple radio base stations for TDMA digital mobile communications system  
A TDMA digital mobile communications system prevents TDMA frame synchronization from being asynchronous among radio base stations when a communication held by a mobile station is handed over from...
5289527 Mobile communications device registration method  
A distance based method for mobile station registration in a cellular communication system. The mobile station registers whenever it moves into a new cell that is greater than some predefined...
5285447 Target channel verification in a radiotelephone system  
A radiotelephone system verifies the carrier/interference (C/I) of a selected target channel before handoff. The subscriber (125), communicating to a source base-station (130) on a source channel,...
5278892 Mobile telephone system call processing arrangement  
A CDMA cellular radio-telephone system (FIG. 2) comprises a packet-switched communications network (202, 207, 201) that interconnects cells (base stations; 202) with each other and with the public...
5267262 Transmitter power control system  
A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple...
5265119 Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system  
A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple...
5257401 Method of maintaining an established connection in a mobile radio system comprising both analog and digital radio channels  
The invention relates to a method in a mobile radio system having both digital and analog radio channels. An object of the invention is that a connection established on a digital radio channel...
5257399 Multiple access handling in a cellular communications system  
A method and apparatus for use in a cellular mobile radio telephone system for determining which of one of several mobile generated transmissions received in a mobile switching center, sent from...
5257283 Spread spectrum transmitter power control method and system  
A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple...
5230082 Method and apparatus for enhancing signalling reliability in a cellular mobile radio telephone system  
A method and apparatus for achieving reliable transmission of signalling messages in a cellular system in which the frequency plan, frequency/time slot allocation plan, code channel allocation...
5200957 Mobile assisted handoff  
The invention relates to a method for communication and handoff in a cellular mobile radio system and a base station and a mobile station for communication and handoff in such a system, in which...
5195091 Adaptive synchronization arrangement  
A CDMA cellular radio-telephone system (FIG. 2) has switching systems (201) synchronized to public telephone network (100) timing signals (600), and radio telephones (203) and cell base stations...
5195090 Wireless access telephone-to-telephone network interface architecture  
A wireless-access communications system, such as a CDMA cellular radio-telephone system (FIG. 2), comprises a packet-switched communications network (202, 207, 201) that interconnects cells (base...
5185739 Time-allocation of radio carriers  
In a TDMA cellular system, there is provided a mechanism for splitting the allocation of time slots within a TDM frame between adjacent coverage areas. There is provided a method of and apparatus...
5184347 Adaptive synchronization arrangement  
A CDMA cellular radio-telephone system (FIG. 2) has switching systems (201) synchronized to public telephone network (100) timing signals (600), and radio telephones (203) and cell base stations...
5170488 Method of switching speech path in radiotelephone system  
A speech path switching method for use in a radiotelephone system suitable for a private branch radio exchange system. In the radiotelephone system, portable-type cordless telephone sets are...
5111535 Method and system for switching radio frequency  
In a method and system in which data is time-divisionally transmitted from a plurality of base stations to a plurality of mobile subscribers at different frequencies corresponding to the base...
5109390 Diversity receiver in a CDMA cellular telephone system  
A spread spectrum receiver subsystem for utilization in a CDMA cellular telephone having a searcher receiver for scanning the time domain so as to use the PN processing gain and time discrimination...
5101501 Method and system for providing a soft handoff in communications in a CDMA cellular telephone system  
In a cellular telephone system a system for directing communications between a mobile user and cell-sites as a mobile user changes cell-site service areas. The mobile user includes an apparatus...
EP0465443A1 A method in connection with handoff in a mobile communication system.  
The invention relates to a method in connection with handoff in a mobile radio communication system comprising at least one mobile station and a set of base stations (BS1, BS5) surrounding said...
5056109 Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system  
A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple...
5042082 Mobile assisted handoff  
The invention relates to a method for communication and handoff in a cellular mobile radio system and a base station and a mobile station for communication and handoff in such a system, in which...
5029334 Process for transferring data packets  
A process for transferring data packets in a network having a master station, plural subscriber stations, and a common gated channel, wherein each subscriber station records the data package...
5008953 Mobile station link supervision utilizing digital voice color codes  
A method and apparatus are disclosed for supervising a communication link in a cellular mobile radio system between a base station and a mobile station on a digital voice channel by utilizing...
4995097 Radio system to allow for exchanging messages between a set of stations  
A radio system allows for exchanging messages between a set of relay stations (R1, R2, R3 . . . ) and mobile access stations (M . . . ) for communications. At least one common semaphore channel is...
4965850 System for and method of assigning frequencies in a communications system with no central control of frequency allocation  
A system for and method of assigning frequencies in a mobile telephone communication system wherein there is no central control of frequency channel allocations and wherein such assignment is made...
4955082 Mobile communication system  
A mobile station receives radio waves from all signposts through the positioning channels while making communications using the voice channels. The signal levels of the radio waves thus received...
4947452 Mobile communication system  
A mobile communication system is provided wherein a plurality of signposts enable communications among mobile stations and a switching system in a predetermined communicating area, and are...
4926421 Mobile radio telephone system  
In a mobile radio telephone system having multiple base stations controlled by a single line control unit, all base stations use a single common control channel in addition to their voice channels...
4882579 Code division multiplexed acknowledge back paging system  
An acknowledge back (ack-back) paging system is provided which includes a central station which transmits a group of message signals to an group of ack-back pagers which are addressed as a group....
4879711 Satellite communications system employing frequency reuse  
A satellite communications system employs separate subsystems for broadcast and point-to-point two-way communications using the same assigned frequency band and employs an antenna system which uses...
Matches 201 - 249 out of 249 < 1 2 3 4 5