Radio communications newtwork
First Claim
1. A radio communications network comprising a plurality of base stations arranged for wireless communication with a plurality of mobile stations, a plurality of location data caches each arranged to store location data for selected mobile stations capable of communicating via the network, each data cache being accessible by one or more base stations of the network, and wherein each base station is arranged to request location data from a location data store in the event that location data is required for a mobile station that is not one of the selected mobile stations in a location data cache accessible to the base station.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of and apparatus for connecting calls to mobile stations (A to H) in a radio telecommunications network, such as a private mobile radio system or a cellular telephone system, so as to minimise call set-up delays and communication bottlenecks in the fixed part of the network. A plurality of location data caches (d1 to d4) are provided, each arranged to store location data for selected mobile stations capable of communicating via the network. Each location data cache (d1 to d4) is accessible by one or more base stations (b1 to b4) of the network. In the event that location data is required for a mobile station (A to H) that is not one of the selected mobile stations in a location data cache (d1 to d4) accessible to a base station, the base station (b1 to b4) requests location data from a location data store (dc) containing location data records for all the mobile stations of the network.
25 Citations
87 Claims
- 1. A radio communications network comprising a plurality of base stations arranged for wireless communication with a plurality of mobile stations, a plurality of location data caches each arranged to store location data for selected mobile stations capable of communicating via the network, each data cache being accessible by one or more base stations of the network, and wherein each base station is arranged to request location data from a location data store in the event that location data is required for a mobile station that is not one of the selected mobile stations in a location data cache accessible to the base station.
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16. A radio communications network comprising:
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a plurality of base stations arranged for wireless communication with a plurality of mobile stations;
a plurality of location data stores, each location data store containing a location data record for at least one, but less than all mobile stations capable of using the network; and
an index data store containing index data associating each mobile station with a location data store containing the location data record for that mobile station.
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- 32. A radio communications network comprising at least one database storing calling data relating to at least some mobile stations capable of communicating via the network, wherein the database is arranged to receive a call request and to forward the call request, supplemented if possible with calling data from the database, in response to the calling data stored in the database in order to progress the call request through the network.
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39. A database for a radio communications network, wherein the database is arranged to store calling data relating to at least some of the mobile stations capable of communicating via the network, to receive a call request and to forward the call request, supplemented if possible with calling data from the database, in response to the calling data stored in the database in order to progress the call request through the network.
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40. A base station for a radio communications network, wherein the base station comprises a location data cache which is arranged to store location data for selected mobile stations capable of communicating via the network, and means for requesting location data from a location data store in the event that location data is required for a mobile station that is not one of the selected mobile stations.
- 41. A method of operating a radio communications network, the network comprising a plurality of base stations arranged for wireless communication with a plurality of mobile stations, the method comprising storing location data for selected mobile stations capable of communicating via the network at two or more location data caches, each location data cache being accessible by one or more base stations of the network, storing location data for all mobile stations capable of communicating via the network at a location data store and supplying location data to a base station on request from the location data store in the event that location data is required by the base station for a mobile station that is not one of the selected mobile stations in a location data cache accessible to the base station.
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56. A method of operating a radio communications network, the network comprising a plurality of base stations arranged for wireless communication with a plurality of mobile stations, the method comprising:
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providing a plurality of location data stores, each location data store containing a location data record for at least one, but less than all mobile stations capable of using the network; and
providing an index data store containing index data associating each mobile station with a location data store containing the location data record for that mobile station.
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- 72. A method of operating a radio communications network, the method comprising storing calling data relating to at least some of the mobile stations capable of communicating via the network in a database, sending a call request to the database and forwarding the call request, supplemented if possible with calling data from the database, in response to the calling data stored in the database in order to progress the call request through the network.
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73. A method of operating a database of a radio communications network, the method comprising storing in the database calling data relating to at least some of the mobile stations capable of communicating via the network, receiving a call request and forwarding the call request, supplemented if possible with calling data from the database, in response to the calling data stored in the database in order to progress the call request through the network.
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80. A method of operating a base station of a radio communications network, the method comprising storing location data for selected mobile stations capable of communicating via the network at the base station and requesting location data from a location data store in the event that location data is required by the base station for a mobile station that is not one of the selected mobile stations.
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81. A method of operating a radio communications network, the network comprising a plurality of base stations arranged for wireless communication with a plurality of mobile stations, the mobile stations comprising at least one talk group, wherein each base station with which a member of the talk group is registered is provided with a continually updated list of the base stations with which the other members of the talk group are registered.
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82. A radio communications network substantially as described with reference to the accompanying drawings.
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83. A database for a radio communications network substantially as described with reference to the accompanying drawings.
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84. A base station for a radio communications network substantially as described with reference to the accompanying drawings.
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85. A method for operating a radio communications network substantially as described with reference to the accompanying drawings.
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86. A method of operating a database of a radio communications system substantially as described with reference to the accompanying drawings.
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87. A method of operating a base station of a radio communications system substantially as described with reference to the accompanying drawings.
Specification