Patent ID: 9088337
Filing Date: 2015-07-21
Classification: H04B,H04L,H04W

Abstract:
1. A method for coordinating interference between at least one relay node (RN) and at least one macro radio base station serving said at least one RN and wherein said at least one RN and said at least one macro radio base station are configured to communicate with each other via at least one predefined layer one (L1) control channel, the method comprising: deciding, in said at least one macro radio base station, on what radio resources to schedule to at least one user equipment, UE, served by the macro radio base station and deciding on what radio resources to leave unutilized; and transmitting to said at least one RN, via said at least one predefined L1 control channel, an interference coordination signalling message comprising information on said decided radio resources, to assist said at least one RN to make an own scheduling decision based on the information in the interference coordination signalling message, the interference coordination signalling message further indicating a time span over which said interference information in the interference coordination signalling message applies, wherein said transmitting comprises selecting to transmit the interference coordination signalling message via either the predefined L1 control channel corresponding to a relay physical downlink control channel (R-PDCCH) or via the predefined L1 channel corresponding to a physical broadcast channel (PBCH) if the same interference coordination signalling message is to be transmitted to a plurality of relay nodes served by the macro radio base station.