Method, system and device for processing release failure of packet data network
US9094981B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 2010 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Nov 2, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/19
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a method, system and device for processing the release failure of a PDN. The method includes: a UE, when the UE determines that it currently connects with at least two PDNs, sends a PDN release request message to an EPC and then receives a release rejection message from the EPC, wherein a rejection reason is that the last PDN connection is not allowed to be released; and the UE releases each PDN connection with the EPC and then resets up a PDN connection with the EPC. Through the technical solution, the PDN connection information of the UE and that of the EPC are kept consistent, so that resources are saved and the reliability of data transmission is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.