Transmit power control for multiple rate wireless communications
US6735420B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Sep 17, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/52
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An RF device including a control loop for maximizing output power for each of several data rates or constellation types. The RF device includes a power detector, a power amplifier and a MAC that includes input and output adjust circuits. A power level value is generated from measured output power. The MAC compares an adjusted power level value with a set point value and generates an error value. The MAC adjusts a power control value based on the error value for controlling the gain of the power amplifier. The MAC uses a data rate signal indicative of a selected constellation type or data rate. The input adjust circuit stores one or more input adjustment values selected by the data select signal for adjusting the power level value. The output adjust circuit stores one or more output adjustment values selected by the data select signal for adjusting the power control value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.