Patent ID: 8670735
Filing Date: 2014-03-11
Classification: H04B,H04L

Abstract:
1. A receiver comprising: a reception quality SNR estimation unit which estimates a reception quality Signal to Noise Power Ratio (SNR) representing a quality of a received signal; wherein the reception quality SNR estimation unit includes: a signal power and noise power estimation unit which estimates signal power and noise power of a reference signal mapped to the received signal; an EESM operation unit which estimates a signal-to-noise power ratio by means of EESM (Exponential Effective SNR Mapping) operation according to each signal-to-noise power ratio of the reference signal; and a reception quality judgment unit which calculates a signal-to-noise power ratio according to each average value of the signal power and the noise power estimated by the signal power and noise power estimation unit, makes a judgment on a magnitude of either the signal-to-noise power ratio last above or the signal-to-noise power ratio calculated by the EESM operation unit, and outputs one of the signal-to-noise power ratios as a reception quality SNR.