Patent ID: 9185614
Filing Date: 2015-11-10
Classification: H04B,H04W

Abstract:
1. A method for wireless communications, comprising: obtaining a channel impulse response (CIR) from one or more reference signals (RSs) transmitted from one or more antennas of a base station; calculating an absolute square per element of the CIR to generate channel energy response (CER) elements; calculating a threshold value based on a noise variance estimated from a portion of the CER elements; selecting CER elements that exceed the threshold value; and computing a reference signal received power (RSRP) value based on the selected CER elements, wherein the RSRP is computed in a linear scale by accumulating selected CER elements, and further computing the RSRP in units of dBm from the linear scale by converting to a logarithmic scale and applying normalizations based, at least in part, on a number of RS tones.