Patent ID: 9467875
Filing Date: 2016-10-11
CPC Classification: H04L,H04W

Claim Text:
1. A method for allowing a user equipment to estimate an almost blank subframe (ABS) zone of a macro cell in a wireless access system in which the macro cell and a pico cell coexist, the method comprising the steps of: measuring reference signal received power (RSRP) by using a cell-specific reference signal which is inserted into a subframe of the macro cell; and determining whether a format of the subframe is a multicast broadcast single frequency network (MBSFN) ABS by comparing a difference value, which is the difference between an RSRP measurement value from an orthogonal frequency division multiplexing (OFDM) symbol 0 of the subframe and an RSRP measurement value from any one of OFDM symbols 4, 7 and 11, with a first threshold value which is previously set.