| 主权项 |
1. A method of receiving control data, the method comprising:
demodulating downlink control information (DCI) including an assignment flag and a downlink (DL) resource allocation; and demodulating physical downlink shared channel (PDSCH) data by using the DL resource allocation, wherein when the PDSCH data is demodulated based on a demodulation reference signal (DM-RS), the assignment flag indicates information on a reference signal (RS) used for demodulating the PDSCH data or information on a transmit antenna port of the PDSCH, wherein when the PDSCH data is demodulated based on a cell-specific RS, the assignment flag indicates an localized virtual resource block (LVRB) assignment or a distributed virtual resource block (DVRB) assignment for a PDSCH, wherein the LVRB assignment indicates at least one physical resource block (PRB) at a same position on a frequency domain, wherein the DVRB assignment indicates at least one PRB at a distributed position on the frequency domain, wherein the assignment flag has one bit, wherein the DM-RS is generated from a pseudo-random sequence initialized by a scramble identifier, wherein the scramble identifier is given by a base station, and wherein the cell-specific RS is generated from a pseudo-random sequence initialized by a cell identifier. |
