Method and apparatus for channel quality feedback within a communication system
US7640373B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2003 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Apr 1, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03802
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A base station (101) will request the transmission of quality information from a particular remote stations (102, 103) only when data is queued to be transmitted to the remote stations. Once a remote station begins the transmission of channel quality information, the transmission of such information continues until the data transmission is successfully delivered to the remote station. The base station receives the channel quality information and adjusts the modulation and coding of the remote stations accordingly. Where data is transmitted simultaneously to a plurality of remote stations, a set of queues (303) for the multiple remote stations is maintained, and based on queue status, a channel quality request messages is sent to a sub-set of remote stations with data queued.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.