METHOD AND DEVICE FOR SELECTING LONG TERM EVOLUTION LTE NETWORK

摘要

A method and device for selecting an LTE network, relating to the technical field of communications, are disclosed in the present application are, which makes that a UE can returns to an LTE PLMN registered when CSFB is initiated after the CSFB service, thereby ensuring the continuity of PS service, avoiding an unnecessary inter-PLMN network switch and promoting the user experience. The method provided in the present application mainly comprises: performing, by a UE, a combined registration in the LTE PLMN; initiates, by the UE, a CSFB service to fall back to a 2G/3G network, and receiving an equivalent PLMN list in the 2G/3G network; adding, by the UE, identity information of the LTE PLMN to the equivalent PLMN list; performing, by the UE, a PLMN selection according to the equivalent PLMN list when the CSFB service ends.

主权项

1. A method for selecting a Long Term Evolution (LTE) network, comprising:
receiving, by a 2nd generation/3rd generation (2G/3G) base station, a connection release message sent by a serving Mobile Switching Centre/Visitors Location Register (MSC/VLR), wherein, the connection release message comprises identity information of an LTE Public Land Mobile Network (PLMN) registered when a user equipment UE initiates a CSFB service, and the 2G/3G base station is a base station which provides a service for the CSFB service; selecting, by the 2G/3G base station, target frequency band information according to the identity information of the LTE PLMN; and sending the target frequency band information to the UE, wherein, the target frequency band information is used for indicating the UE to select a cell for residing on a frequency band corresponding to the target frequency band information.