METHOD AND DEVICE FOR DETERMINING PDSCH TRANSMISSION RESOURCES

摘要

The present invention relates to the field of communications, and disclosed are a method and device for determining a PDSCH transmission resource. The method is: in the embodiments of the present invention, a network side determines a mapping relationship between a PDSCH transmission point and a zero-power CSI-RS for UE, and the UE does not receive a PDSCH over a zero-power CSI-RS resource which corresponds to a cell currently transmitting the PDSCH and measures an interference and still receives the PDSCH over a zero-power CSI-RS resource which corresponds to a cell not currently transmitting the PDSCH and measures an interference, thereby ensuring that the UE can accurately measure the interference and further improving the accuracy of CQI estimation; furthermore, the signalling overhead required for realizing the technical solution of the present invention is very small, only some RRC signalings are required, and a dynamic signaling can reuse a current signaling to the greatest extent, in this way, the compatibility of the system is effectively improved and the complexity of implementation is reduced.

主权项

1. A method for determining Physical Downlink Shared Channel (PDSCH) transmission resources, comprising:
determining respectively a zero power Channel State Information-Reference Signal (CSI-RS) resource corresponding to each of transmission points in a set of candidate PDSCH transmission points of a user equipment; notifying the user equipment of a correspondence relationship between respective transmission points and the zero power CSI-RS resources; and determining and notifying the user equipment of a current PDSCH transmission point of the user equipment so that the user equipment receives PDSCH on other resources than a zero power CSI-RS resource corresponding to the current PDSCH transmission point.