Patent ID: 9014073
Filing Date: 2015-04-21
Classification: H04B,H04L

Abstract:
1. A method for transmitting a signal to a relay at a Base Station (BS), the method comprising: transmitting, by the BS to the relay in a primary backhaul region for the relay in a subframe, a second Physical Downlink Control Channel (R-PDCCH) carrying second control information for the relay; and according to the second control information, transmitting, by the BS to the relay in the subframe, a data channel carrying data for the relay, wherein the R-PDCCH is transmitted using a specific frequency band in the primary backhaul region of the subframe other than a first resource area of the subframe that is used for transmission of a first Physical Downlink Control Channel (PDCCH) carrying first control information for a User Equipment (UE), and wherein the data channel corresponding to the R-PDCCH is transmitted only within a same frequency band in the subframe as the specific frequency band occupied by the R-PDCCH in the subframe, and wherein the R-PDCCH further carries information on a secondary backhaul region allocated additionally for the relay in the subframe when the primary backhaul region is insufficient for signal transmission to the relay.