Telematics support for mobile wireless network service swapping

摘要

A method for implementation at a processor of a vehicular telematics unit is described. The method allows data structures formatted to store one or more wireless network communication parameters to be updated in response to a swap of a subscription with one network service provider for a subscription with a different network service provider. The method includes receiving, from a network access device of the vehicular telematics unit, a home public land mobile network (HPLMN) identifier corresponding to a wireless network service provider corresponding to an active subscription. The method also includes identifying, in a set of one or more access point name (APN) data structures each having a public land mobile network (PLMN) identifier field, a matching APN data structure having the HPLMN identifier stored at its PLMN element and designating the matching APN data structure as active.

主权项

1. A method, implemented at a processor of a vehicular telematics unit, for updating data structures formatted to store one or more wireless network communication parameters, the method comprising:
maintaining, by the vehicular telematics unit, a set of access point name (APN) data structures, where each one of the set of APN data structures includes a public land mobile network (PLMN) identifier element and a set of rows, each row providing a set of network interface parameter values for a distinct communications channel, and wherein designating one of the set of APN data structures as an active APN data structure causes the telematics unit to reference the set of rows of network interface parameter values specified in the APN data structure to support network communications by the telematics unit via corresponding communications channels; receiving, by the processor from a network access device (NAD) of the vehicular telematics unit, a home public land mobile network (HPLMN) identifier corresponding to a first mobile wireless network service provider (MWNSP); identifying, from the set of APN data structures, a non-active APN data structure that contains a PLMN identifier matching the HPLMN identifier of the first MWNSP; and designating, after the identifying, the non-active APN data structure as the active APN data structure.