Low feedback scheme for link quality reporting based on the exp esm technique
AssigneeMotorola, Inc.
InventorsKevin Baum, Yufei Blankenship, Brian Classon, Mark Cudak, Philippe Sartori
Life of this patent
Estimating the term…
Abstract
A method for providing a low-feedback scheme for link-quality reporting based on the EESM technique is provided herein. During operation, a node will analyze the current channel conditions and determine a non-linear approximation of the carrier to interference plus noise ratio (CINR). The non-linear approximation is sent to a communication unit as a channel-selectivity report, causing the communication unit to utilize the report to assist with modulation and coding selection.
Claims20
A method for channel-selectivity reporting, the method comprising the steps of:
- analyzing a channel condition;
- determining a quadratic approximation of carrier to interference plus noise ratio (CINR) in dB vs. βdB, wherein the quadratic approximation is represented as an effective CINRdB(βdB)=a+bβdB+cβdB2, wherein a, b, and c are the Y-intercept, linear, and quadratic parameters, respectively;
- sending the parameters of the quadratic approximation to a base station as a channel-selectivity report.
A method for channel-selectivity reporting, the method comprising the steps of:
- analyzing a channel condition;
- determining a non-linear approximation of carrier to interference plus noise ratio (CINR) vs. β, wherein the non-linear approximation is represented as an effective CINR(β)=F(β);
- sending parameters of the non-linear approximation to a communication unit as a channel report.
Dependencies are inferred from the claim text.