Power control and automatic repeat request (ARQ) in a radio communications system
US7920888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2004 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Sep 9, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2001/0092
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A radio network entity in charge of outer loop power control for a communication with a mobile radio is informed about erroneous data units, requested retransmissions, and/or data units transmission attempts associated with the data units sent by the mobile radio to the radio network. Another radio network entity, which sends a transmission power control signal to the mobile radio to control the mobile's transmit power level based on a target value, detects errors in data units received from the mobile radio and requests retransmission. Information associated with the requested retransmission is used to generate a revised target value. The target value may be revised by an outer loop power controller node or by an outer loop power controller entity in the same node as an ARQ entity that generates the information about erroneous data units, requested retransmissions, and/or data units transmission attempts associated with the data units sent by the mobile radio to the radio network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.