METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DOWNLINK CONTROL INFORMATION BASED ON MULTI-USER MIMO TRANSMISSION

摘要

The present invention provides a method and apparatus for transmitting and receiving downlink control information based on multi-user MIMO transmission, wherein the method comprises: transmitting, to respective user equipments within one or more groups participating in multi-user MIMO transmission, radio network temporary group identifiers for identifying the groups and intra-group user equipment-specific identifiers for identifying the respective user equipments within the groups, and transmitting downlink control information to the respective user equipments within the one or more groups, wherein the downlink control information comprises common scheduling indication information for the groups and specific scheduling indication information for respective user equipments within the groups, and the common scheduling indication information and specific scheduling indication information is obtained by the user equipment from the downlink control information through the radio network temporary group identifiers and the intra-group user equipment-specific identifiers. The method and corresponding apparatus according to the present invention may reduce downlink control overheads, thereby improving the overall performance of the communication system.