Patent ID: 8619941
Filing Date: 2013-12-31
Classification: H04B,H04L,H04W

Abstract:
1. A method for transmitting a sounding reference signal by a user equipment (UE) in a multi-input/multi-output (MIMO) antenna wireless communication system, the method comprising: receiving, by the UE from a base station (BS), parameters for the sounding reference signal, the parameters including an initial cyclic shift value and an initial transmissionComb value; determining, by the UE, whether or not the initial cyclic shift value is a first value; if the initial cyclic shift value is determined to be the first value, setting by the UE a transmissionComb value corresponding to a first MIMO antenna port of two MIMO antenna ports of the UE to the initial transmissionComb value while setting a transmissionComb value corresponding to a second MIMO antenna port of the two MIMO antenna ports to a transmissionComb value different from the initial transmissionComb value; and transmitting, by the UE to the BS, the sounding reference signal through each of the two MIMO antenna ports by using the set transmissionComb values.