Patent ID: 9729290
Date: 2017-08-08
CPC Classifications: H04B,H04J,H04L,H04W

Claim:
1. A method for transmitting, by a user equipment (UE), a demodulation reference signal (DMRS) for a physical uplink shared channel (PUSCH) in a wireless communication system, the method comprising: receiving a cyclic shift field, which indicates a first value and a second value, through a physical downlink control channel (PDCCH) from a base station; generating a first DMRS sequence and a second DMRS sequence, which are associated with a first layer and a second layer, respectively, by using a first cyclic shift and a second cyclic shift, respectively, which are determined based on the first value and the second value, respectively; and transmitting the first DMRS sequence and the second DMRS sequence to the base station, wherein the first value and the second value are separated by a maximum value corresponding to a total number of possible cyclic shifts.