Wireless communication unit, integrated circuit and method of power control of a power amplifier therefor
US8611460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2008 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Dec 23, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2201/3233
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A wireless communication unit comprises a transmitter having a forward path comprising a power amplifier, PA, and a feedback path operably coupled to the power amplifier, wherein the feedback path comprises a coupler arranged to feed back a portion of a signal to be transmitted and a controller logic module arranged to control a power control value of the power amplifier, such that the forward path and feedback path form a closed loop power control. The controller logic module is arranged to determine a gain variation in the transmitter and provide attenuation to a transmit signal passing therethrough on a transmit slot by transmit slot basis and instruct a power backoff where necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.