Patent ID: 9173110
Filing Date: 2015-10-27
Classification: H04B,H04L,H04W

Abstract:
1. A method for measuring a channel status between a first user equipment (UE) and a second UE in a wireless communication system communicating by using a radio frame including a plurality of downlink subframes and a plurality of uplink subframes, which follow the plurality of downlink subframes, the method comprising: receiving, by the second UE, control information related to a dedicated sounding zone from a base station through at least one of the plurality of downlink subframes, wherein the dedicated sounding zone is radio resource allocated for receiving a sounding signal; receiving, by the second UE, the sounding signal from the first UE, wherein the sounding signal is included in an initial symbol of an initial subframe of the plurality of uplink subframes, and wherein the initial symbol is included in the dedicated sounding zone; measuring, by the second UE, the channel status between the first UE and the second UE by using the sounding signal; and reporting, by the second UE, a result of measurement for the channel status to the base station, wherein a transition gap is included in a last symbol of the initial subframe of the plurality of uplink subframes.