PLMN SELECTION IN MULTI-NETWORK ENVIRONMENT
First Claim
1. A method of PLMN selection subsequent to a change in cell for a mobile radio communications device in a multi-network cellular environment, the method including the steps of monitoring system information within a mobile radio communications device to determine the availability of a priority PLMN and selecting the said priority PLMN if identified as available.
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Accused Products
Abstract
The present invention provides a method of PLMN selection subsequent to a change in cell for a mobile radio communications device in a multi-network cellular environment, the method including the steps of monitoring system information within a mobile radio communications device to determine the availability of a HPLMN or any other higher priority PLMN than current registered PLMN, and selecting the said HPLMN or higher priority PLMN than current registered PLMN if identified as available, and also a related network-sharing-capable UE that, when registered with a visitor PLMN, can readily check the availability of its HPLMN or any other higher priority PLMN in the system information whenever it moves to a new location area and, assuming the HPLMN or higher priority PLMN to be found, can then reselect to that PLMN.
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Citations
20 Claims
- 1. A method of PLMN selection subsequent to a change in cell for a mobile radio communications device in a multi-network cellular environment, the method including the steps of monitoring system information within a mobile radio communications device to determine the availability of a priority PLMN and selecting the said priority PLMN if identified as available.
- 5. A mobile radio communications device arranged for operation in a multi-network cellular environment and further arranged for PLMN selection subsequent to a change in cell, the device further being arranged to monitor system information to determine the availability of a priority PLMN, and to select the said priority PLMN if identified as available.
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9. A method of PLMN selection in a multi-network cellular environment and substantially as hereinbefore described with reference to the accompanying drawings.
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10. A mobile radio communications device arranged for operation within a multi-network cellular environment and substantially as hereinbefore described with reference to the accompanying drawings.
Specification