Handling of an unrecoverable error on a dedicated channel
US7209747B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 2003 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | May 17, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
User equipment (UE) can detect a Radio Link Control (RLC) unrecoverable error and a Radio Link (RL) failure. The two errors are handled differently while the UE is in a dedicated channel (DCH) state. The RL failure leads to execution of Radio Access Bearer (RAB) release steps, characterized by utilizing respective timer values to determine if associated RABs should be released. The RLC unrecoverable error is not permitted to execute the RAB release steps. This prevents unnecessary dropping of services. The UTRAN can optionally include and set the indicators to command the UE to perform the indicated RLC re-establishmentprocedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.