| 主权项 |
1. A non-call service processing method in a Circuit Switch Fallback (CSFB) system, the method comprising:
when User Equipment (UE) falls back to a conventional circuit switch network and determines that its own Location Area Identity (LAI) in the conventional circuit switch network is changed, transmitting, by the UE, a location updating request to a second Visitor Location Register (VLR) VLR2 where a new LAI is located; transmitting, by the VLR2 receiving the location updating request, a location updating request to a Home Location Register (HLR); transmitting, by the HLR receiving the location updating request, a location cancellation message carrying an address of the VLR2 to a first VLR (VLR1) where original LAI is located; forwarding, by the VLR1 receiving the location cancellation message, a non-call service request received to the VLR2; processing, by the VLR2, the received non-call service request, and transmitting a processing result to the VLR1; and transmitting, by the VLR1, the received processing result to a network element which transmitted the non-call service request. |
