Apparatus and method for wireless communications, base station, and apparatus at user equipment side

A method for wireless communications, comprising:

• in response to transmission requirements of a plurality of user equipments, determining, based on user equipment clusters which the plurality of user equipments belong to, whether the plurality of user equipments are capable of multiplexing same physical transmission resources;
• scheduling, based on a result of the determining, physical transmission resources for the plurality of user equipments;
• generating, based on the resources scheduling, downlink control information containing resource scheduling information to be used for the plurality of user equipments;
• wherein the user equipments comprise D2D user equipment pairs and cellular user equipments, and the plurality of user equipments are grouped into at least one user equipment cluster based on geographical locations in advance;
• and
• configuring a same DP-RNTI for the D2D user equipment pairs multiplexing the same physical resource blocks, and scrambling the downlink control information with the DP-RNTI,
• wherein in the case that a cellular user equipment and a D2D user equipment pair multiplex resource blocks, configuring the DP-RNTI to be the same as a C-RNTI of the cellular user equipment.

An apparatus on a user equipment side in a communication system, comprising:

• one or more processors, configured to:
• parse control signaling from a base station and determine a DP-RNTI for the apparatus, and
• perform blind detection on a physical downlink control channel (PDCCH) from the base station using the DP-RNTI, to detect downlink control information for the apparatus and determine physical transmission resources scheduled by the base station for the apparatus,
• wherein the physical transmission resources are used for a D2D communication between the user equipment and another user equipment, and the user equipment and at least another D2D user equipment managed by the base station share the DP-RNTI,
• wherein a same DP-RNTI is configured for D2D user equipment pairs multiplexing the same physical resource blocks, and the downlink control information is scrambled with the DP-RNTI, and
• wherein in the case that a cellular user equipment and a D2D user equipment pair multiplex resource blocks, the DP-RNTI is configured to be the same as a C-RNTI of the cellular user equipment.