Mobile device which deletes duplicate preferred roaming list system records for improved performance

摘要

A User Equipment (UE) device and associated method for operating a User Equipment (UE) in a wireless communication system. The UE may store a preferred roaming list in a memory. The preferred roaming list may comprise a plurality of system records which specify radio access technologies that can be used by the UE. The UE may examine the preferred roaming list to delete any duplicate system records in the PRL for respective geographic locations (GEOs). This may operate to mitigate the problems created by duplicate listing of system records within the PRL. In particular, the removal of redundant system records within the PRL may reduce or eliminate unneeded or undesired BSR algorithm execution. In addition, the removal of redundant system records within the PRL may reduce temporal service outages, since no service origination is allowed while the UE is attempting to find the most preferred system.

主权项

1. A method for operating a mobile wireless User Equipment (UE), the method comprising:
storing a preferred roaming list in a memory of the UE, wherein the preferred roaming list comprises a plurality of system records which specify radio access technologies that can be used by the UE; examining the preferred roaming list to determine if any duplicate system records exist in the preferred roaming list; deleting at least one duplicate system record from the preferred roaming list in response to determining that the at least one duplicate system record exists in the preferred roaming list; wherein said deleting the at least one duplicate system record comprises deleting a less preferred duplicate system record from the preferred roaming list.