Invention Grant
US09306717B2 Method and device for transmitting a downlink reference signal in a wireless communications system supporting multiple antennas 有权
用于在支持多个天线的无线通信系统中发送下行链路参考信号的方法和装置

Method and device for transmitting a downlink reference signal in a wireless communications system supporting multiple antennas
Abstract:
A method for a base station to transmit a channel-state-information reference signal for up to 8 antenna ports includes mapping, in accordance with a predetermined pattern, the channel-state-information reference signal for up to 8 antenna ports onto a data region of a downlink subframe having an extended cyclic prefix (CP) structure, and transmitting the downlink subframe onto which the channel-state-information reference signal for up to 8 antenna ports has been mapped; and, in the predetermined pattern, the channel-state-information reference signal for up to 8 antenna ports in mapped onto 2 OFDM symbols on the data region of the downlink subframe, with a definition for mapping onto at least one of 4 subcarrier wave positions in each of the 2 OFDM symbols, and the 4 subcarrier wave positions defined in the predetermined pattern can be disposed at 3 subcarrier wave intervals.
Information query
Patent Agency Ranking
0/0