Method and apparatus for transreceiving synchronization signal in wireless communication system

摘要

One embodiment of the present invention relates to a method for a terminal acquiring synchronization in a wireless communication system, comprising the steps of: receiving a first signal from on a first carrier; receiving a second signal, which is positioned on a resource element having a predetermined pattern, from at least one subframe from subframes excluding the subframe that receives the first signal; and acquiring synchronization with respect to the first carrier by using the first signal and the second signal.

主权项

1. A method for acquiring synchronization, at a user equipment in a wireless communication system, the method comprising:
receiving a primary synchronization signal (PSS) without a secondary synchronization signal (SSS) in a first subframe via an extension carrier, the PSS being different from a common reference signal (CRS) and a dedicated reference signal (DRS); receiving a channel state information-reference signal (CSI-RS) on resource blocks (RBs) in one or more second subframes other than the first subframe; and acquiring the synchronization for the extension carrier using the PSS and the CSI-RS instead of using the SSS, wherein when the CSI-RS is used for the synchronization with the extension carrier, the resource blocks (RBs) for the CSI-RS are determined by the following formula:
n(NIDcell mod └NDLRB/n┘)+i, i=0, . . . , n, where ‘n’ denotes a total number of the RBs carrying the CSI-RS, NIDcell denotes a cell identifier of a base station, and NDLRB denotes a number of resource blocks included in the entire frequency band of the extension carrier.