Systems and methods providing improved success rate for RRC connection reestablishments
US9730264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Dec 10, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods that provide improved success rates for connection reestablishments in a cellular communications system are disclosed. Embodiments of a radio access node in a cellular communications system enabling connection reestablishment for a wireless device to a target cell controlled by the radio access node are disclosed. In some embodiments, the radio access node is operative to: (a) perform a wireless device context fetch for a context for the wireless device from two or more candidate source cells of the wireless device in response to a connection reestablishment request from the wireless device and (b) receive a wireless device context from at least one of the two or more candidate source cells of the wireless device in response to performing the wireless device context fetch. By performing multiple context fetches, the radio access node mitigates the problem of physical cell identifier ambiguity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.