Motorola Corporation

Paul Crichton

William Neil Robinson

David Chambers

Paul Howard

Howard P Benn

Howard J Thomas

Rupinder Singh Oberoi

Nicholas Anderson

Dennis E Vogt

Sue Ellen Schroeder

Karen E Hathaway-Norman

Steven Heath

Kenneth A Gustafson

Laurence John

Adrian Dodd

A method of optimising the operation of a cellular radio communication system in which the demands made by users of the system are monitored and resources are allocated to the users accordingly.

Dynamic control of cellular radio communication system resources

A Smart Card has an electronic circuit connected to a source of potential capable of destroying at least a portion of the electronic circuit. The potential is normally short circuited, but the path of the short circuit traverses a frangible portion of the card. When the portion is broken, so potential from the source is applied to destroy the portion of the electronic circuit.

Smart card having circuit disabling

To reduce interference in a communication system (,), a communication unit (,) is arranged to initiate establishment of a radio frequency communication with a base station (,) by transmitting a system access request on a dedicated, wide area control channel. Upon receipt of the system access request, a base station (,) of the communication system of FIG.,responds by forming a narrowbeam control channel to the communication unit and transmitting system control information to the communication unit on the narrowbeam control channel, the system control information transmitted from the array of antenna elements and arranged to identify a narrowbeam communication resource for use in the radio communication. The communication unit (,), upon receiving the system control information, then configures itself to utilise the narrowbeam communication resource for the radio communication.

Communication system with a beamformed control channel and method of system control

Communication system and operating method thereof

To alleviate the constraints imposed on communication system management by the assignment of dedicated ranges of MSISDNs and IMSIs to each particular home location register (HLR.sub.1, HLR.sub.2, HLR.sub.N), the present invention provides an ability to separate IMSIs and MSISDNs between HLR platforms by providing at least two databases (80-90) separated from one another and indexed in terms of ranges of MSISDNs and ranges of IMSIs, as illustrated in FIG. 5. A cross-reference (92, 95) is both stored within a particular MSISDN and a particular IMSI to maintain an association therebetween, thereby allowing access to subscription information stored in at least one of the particular MSISDN and the particular IMSI.

Communication system architecture and method of routing therefor

A method for determining a handover for a mobile station in a multicellular communication system including the steps of measuring received signal parameters received from a serving cell and a plurality of neighboring cells, comparing received signal parameters with a variable threshold value for each of the plurality of neighbor cells, measuring the amount of time, or the number of times, the received signal parameters are above the threshold value for each of the plurality of neighbor cells, and determining handover based on the measurement.

Handover based on measured time of signals received from neighboring

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Newbury, United Kingdom

Paul Crichton