METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM

摘要

Disclosed are a method and an apparatus for transmitting a reference signal. A method for receiving a reference signal may comprise the steps of: a subframe including a plurality of resource blocks (RB) and a plurality of OFDM symbols receiving a synchronization signal; and determining the number of RBs which are included in one precoding resource block group (PRB), on the basis of the size of a total system bandwidth, wherein the RBs included in the PRG may include information to which identical precoding has been applied. The synchronization signal is received by six core RBs from the plurality of RBs, and the reference signal can be received by at least one OFDM symbol from the plurality of OFDM symbols, excluding the first and second OFDM symbols, through a plurality of PRGs including the six core RBs. As a result, a channel can be accurately estimated on the basis of the reference signal.

主权项

1. A method for receiving a reference signal in a multi-antenna system, the method comprising:
receiving a synchronization signal in a subframe including a plurality of resource blocks (RBs) and a plurality of OFDM symbols; receiving a reference signal in the subframe; and determining the number of RBs included in one Precoding Resource block Group (PRG) based on the size of a total system bandwidth, wherein the RBs included in the PRG include information to which the same precoding is applied, wherein the synchronization signal includes a PSS and an SSS, wherein the PSS is received in a first OFDM symbol among the plurality of OFDM symbols, wherein the SSS is received in a second OFDM symbol among the plurality of OFDM symbols, wherein a cell identifier is acquired based on the PSS and the SSS, wherein the synchronization signal is received in center 6 RBs among the plurality of RBs, and wherein the reference signal is received through the plurality of PRGs including the center 6 RBs in at least one OFDM symbol among OFDM symbols other than the first and second OFDM symbols.