Reliability determination and combining of power control commands received in a wireless communication system
US7340268B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2003 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Dec 15, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/58
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The reliability of transmit power control (TPC) commands received from a transmitter is determined based on a TPC target value. The TPC target value is derived based on a TPC threshold and possibly a weight, depending on the receiver implementation. A received TPC command is considered reliable if its absolute value exceeds the TPC target value. Received TPC commands deemed as unreliable are discarded and not used for power control. Multiple TPC target values, used for detecting UP and DOWN commands, may be derived with multiple scaling factors. For a receiver in soft handover and receiving TPC commands from multiple transmitters, a different TPC target value may be derived for each transmitter. The received TPC commands for each transmitter are compared against that transmitter's TPC target value. Received TPC commands deemed as unreliable are discarded and not combined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.