Procedure to determine radio link condition using radio link control layer observations
US7212507B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2003 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Dec 22, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of controlling the performance of a radio link between a base transceiver station and a radio terminal for a wireless transmission system is provided. A radio network controller (RNC) monitors a directly observable L-2 parameter, and determines a without explicit L2-L1 signaling a threshold violation by the L-1 parameter for accordingly triggering a status change of the radio link. Namely, a L-2 radio resource management algorithm prompts the radio terminal and the RNC to perform a radio resource management action whenever the L-1 parameter violates a L-1 threshold. Such an action could be directly downgrading or upgrading the transmission rate on the radio link, or a radio link reconfiguration. The L-1 parameter may be the radio block error rate r, and the L-2 parameter may be the PDU retransmission rate R.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.