Patent ID: 9491757
Filing Date: 2016-11-08
CPC Classification: H04L,H04W

Claim Text:
1. A method for determining a relay link resource element group, comprising: determining by a base station a size of the relay link resource element group according to a pattern of a non-zero-power Channel State Information Reference Signal (CSI-RS) or a pattern of a zero-power CSI-RS or a pattern of a Common Reference Signal (CRS) occurred in allocated resources, or a pattern of a Demodulation Reference Signal (DMRS) occurred in the allocated resources, wherein the DMRS is transmitted in a resource block in which the resource element group locates; using the allocated resources to transmit relay link physical downlink control channel by the base station to a relay node, wherein the allocated resources include one or more continuously or discretely distributed resource blocks in frequency domain, and include one or more Orthogonal Frequency Division Multiplexing (OFDM) symbols in time domain; wherein when determining the size of the resource element group according to the pattern of the occurred non-zero-power CSI-RS, or the occurred pattern of the occurred zero-power CSI-RS in the allocated resources, the size of the resource element group is all determined according to a CSI-RS pattern with 8 ports, wherein determining the size of the resource element groups according to the CSI-RS pattern with 8 ports refers to that all resource elements corresponding to the 8-port CSI-RS are unavailable for data mapping of the resource element group.