Tracking received power in wireless communications
US9480032B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2013 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Dec 13, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A plurality of signal transmissions, transmitted using a plurality of transmit powers, are received at a receiver over a communication channel. Each transmit power shares a common transmit power term unknown to the receiver and a signal-specific power offset known to the receiver. The received power is measured at the receiver. A corresponding known power offset is subtracted from the measured received signal power, resulting in a corresponding estimate of the common unknown power term. This results in a plurality of estimates of the common transmit power term. A refined common transmit power term is estimated from the plurality of estimates of the common transmit power term. A plurality of refined measured received signal powers are estimated by adding the plurality of signal-specific power offsets to the refined common power term. Based on the refined common transmit power term, a functionality of the wireless communication system is adapted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.