Patent ID: 8929343
Filing Date: 2015-01-06
Classification: H04B,H04W

Abstract:
1. A method for determining a channel quality index in a receiver, the method comprising: receiving signals comprising reference signals from a serving cell and reference signals from neighboring cells; determining signal power of the reference signals from the serving cell and signal power of the reference signals from detected neighboring cells; determining carrier-to-interference ratio to be a ratio between the signal power of the reference signals from the serving cell and the signal power of the reference signals from the detected neighboring cells; producing an estimated signal-to-interference ratio by estimating a signal-to-interference ratio representing signal power divided by total interference and thermal noise power; determining a second threshold based on the estimated signal-to-interference ratio; comparing the determined carrier-to-interference ratio with the second threshold; and based on whether the determined carrier-to-interference ratio is above the second threshold, adapting physical layer properties of the receiver according to a second reception scheme.