Power control outer loop for communication channels with discontinuous transmission (DTX)
AssigneeQUALCOMM Incorporated
InventorsYu-Chuan Lin, Keith W. Saints, Steven Yoon
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Abstract
Novel techniques are disclosed for adjusting a power control setpoint to compensate for imperfect signal detection in a communication channel capable of discontinuous transmission (DTX). The power control setpoint is compensated for false detections by adjusting the power control setpoint by a dynamically determined setpoint back off amount upon detection of a Good frame. The amount of the setpoint back off is a function of the measured signal quality of the detected Good frame and the number of Erasure indications received immediately preceding the Good frame indication.
Claims31
In a communication device having discontinuous transmission (DTX) detection, a method of providing outer loop power control comprising:
- estimating a number of erroneous frame detections;
- and
- adjusting a power control setpoint associated with the outer loop power control wherein the adjustment is determined at least in part by the estimated number of erroneous frame detections.
In a communication device having discontinuous transmission (DTX) detection, a method of providing outer loop power control comprising:
- estimating a number of erroneous Erasure detections;
- detecting a Good frame;
- and
- in response to detecting the Good frame indication, adjusting a power control setpoint associated with the outer loop power control wherein the adjustment comprises:
- detecting a frame sequence number in the detected Good frame;
- and
- setting the setpoint to a dynamically determined setpoint backoff value determined in part on the estimated number of Erasure detections if the frame sequence number is not continuous with a prior frame sequence number.
A wireless communication device having discontinuous transmission (DTX) detection and outer loop power control comprising:
- means for estimating a number of erroneous frame detections;
- and
- means for adjusting a power control setpoint associated with the outer loop power control wherein the adjustment is determined at least in part by the number of erroneous frame detections.
Dependencies are inferred from the claim text.