Patent ID: 8792327
Filing Date: 2014-07-29
Classification: H04L,H04W

Abstract:
1. A method for transmitting a control format indicator channel for a backhaul link between a base station (BS) and a relay node (RN) by the BS of a wireless communication system, the method comprising: generating a relay physical control format indicator channel (R-PCFICH) including information of a relay physical downlink control channel (R-PDCCH) region, the R-PDCCH region being included in a data region of a downlink subframe; and transmitting the R-PCFICH through a first OFDM symbol of the R-PDCCH region; wherein the R-PCFICH includes information regarding the number of OFDM symbols contained in the R-PDCCH region; wherein the R-PCFICH is distributed and mapped on a frequency axis of the first OFDM symbol of the R-PDCCH region at a predetermined interval; and wherein the R-PCFICH carries an indicator (A) for indicating the information regarding the number of OFDM symbols contained in the R-PDCCH region, wherein correspondence between the indicator (A) and OFDM symbols contained in the R-PDCCH region is defined by a table as follows: