Non-call service processing method, apparatus and system in circuit switch fallback system
US9591471B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2013 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Sep 23, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A non-call service processing method, apparatus and system in a Circuit Switch Fallback (CSFB) system are provided. The method includes that UE transmits a location updating request to VLR2 where a new LAI is located; VLR2 receiving the location updating request transmits a location updating request to a HLR; the HLR receiving the location updating request transmits a location cancellation message carrying an address of VLR2 to VLR1 where original LAI is located; VLR1 receiving the location cancellation message forwards a received non-call service request to VLR2; VLR2 processes the received non-call service request, and transmits a processing result to VLR1; and VLR1 transmits the received processing result to the HLR or a GMLC which transmitted the non-call service request. Thus the interruption of a non-call service can be avoided, and the normal use of UE can be ensured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.