Patent ID: 8767646
Filing Date: 2014-07-01
Classification: H04B,H04L

Abstract:
1. A method of transmitting a demodulation reference signal (DMRS) for a Physical Uplink Shared Channel (PUSCH) at a User Equipment (UE) in a radio communication system, the method comprising: receiving a Physical Downlink Control Channel (PDCCH) signal for the PUSCH, wherein the PDCCH signal includes a 3-bit index related to Cyclic Shift (CS) for the DMRS, the 3-bit index indicating a value; determining a plurality of CS parameters based on the value of the 3-bit index and a number of layers, wherein a number of the plurality of CS parameters is equal to the number of layers; determining a plurality of CS values α generating a plurality of DMRS sequences based on the plurality of CS values α