Method and apparatus for triggering radio bearer release by a relay UE (user equipment) in a wireless communication system
US10154525B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2016 |
| Grant date | Dec 11, 2018 |
| Priority date | — |
| Expiry date | Nov 13, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for triggering radio bearer release by a relay UE in a wireless communication system are disclosed. In one embodiment, the method includes the relay UE connects with an eNB. The method also includes the relay UE establishes a PDN connection for supporting traffic relaying. The method further includes the relay UE establishes a layer-2 link with a remote UE. In addition, the method includes the relay UE creates a radio bearer between the relay UE and the eNB for forwarding data packets between the remote UE and a PDN corresponding to the PDN connection. Furthermore, the method includes the relay UE sends a NAS message to the eNB if a failure of the layer-2 link is detected. And the method includes the relay UE receives a RRC message indicating release of the radio bearer in response to transmission of the NAS message from the eNB.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.