Method and apparatus for transmitting signal via relay backhaul link

摘要

A method and apparatus for transmitting a signal to a relay at a Base Station (BS) in a wireless communication system are disclosed. The method includes mapping a Reference Signal (RS) to a subframe having two slots, and transmitting the subframe to the relay. Each of the slots includes a plurality of consecutive resource elements over which the RS can be spread and the plurality of consecutive resource elements are overlapped with a last Orthogonal Frequency Division Multiplexing (OFDM) symbol of the slot. If a last OFDM symbol of the subframe is not available to the relay, the RS is transmitted only in a first slot of the subframe.

主权项

1. A method for transmitting a signal to a relay at a Base Station (BS) in a wireless communication system, the method comprising:
mapping a Reference Signal (RS) to a subframe having a first slot and a second slot; and transmitting the subframe to the relay, wherein each of the first and second slots includes a plurality of consecutive resource elements over which RS is allowed to be spread, and the plurality of consecutive resource elements are overlapped with a last Orthogonal Frequency Division Multiplexing (OFDM) symbol of a corresponding slot, and wherein if a last OFDM symbol of the subframe is not available for transmission to the relay, the RS is mapped only to the first slot of the subframe and a data signal is mapped to at least part of the plurality of consecutive resource elements in the second slot.