TRANSMISSION METHOD AND DEVICE FOR A DOWNLINK REFERENCE SIGNAL

摘要

The present invention relates a method in which a base station transmits a downlink signal by using a plurality of layers comprises the steps of: multiplexing and transmitting dedicated reference signals for the plurality of layers on the basis of a reference signal pattern, wherein 24 resource element positions comprised in the reference signal pattern are set as 6 groups, the 6 groups are set as 2 high-level groups, the reference signal for the plurality of layer is split and placed in the 2 high-level groups, and the reference signal for 2 or more layers placed in the same group is subjected to code-division multiplexing.

主权项

1. A method of transmitting reference signals for at least one antenna port by a base station, the method comprising:
mapping, by the base station, the reference signals for the at least one antenna port to resource elements having a predetermined pattern in a subframe; and transmitting, by the base station to a user equipment, the reference signals for the at least one antenna port, wherein the predetermined pattern includes a first group of resource elements and a second group of resource elements, wherein the first group and the second group have same positions in time domain and different positions in a frequency domain, and wherein, in case a number of antenna ports is more than four, reference signals for an additional antenna port are mapped to the first group or the second group in turns.