Signaling for selecting a subset of sidelink transmit resource pool by a receiver UE in sidelink

An apparatus for wireless communication, comprising:

• at least one processor configured to:
• receive, from a first wireless device, an indication of a subset of a resource pool allocated for sidelink data transmission from the apparatus to the first wireless device via signaling included in sidelink control information (SCI), wherein the SCI partially schedules a sidelink data channel for the data transmission from the apparatus by indicating a subset of a set of scheduling parameters for the data transmission;
• select a remainder of the set of scheduling parameters that completes scheduling of the sidelink data channel;
• send SCI to the first wireless device indicating the remainder of the set of scheduling parameters;
• and
• send the sidelink data transmission to the first wireless device on the subset of the resource pool;
• and
• a memory coupled with the at least one processor.

A method for wireless communication by a first wireless device, the method comprising:

• selecting, from a resource pool allocated for sidelink data transmission from a second wireless device to a first wireless device, a subset of the resource pool for the sidelink data transmission;
• transmitting an indication to the second wireless device of the selected subset of the resource pool via signaling included in sidelink control information (SCI), wherein the SCI partially schedules a sidelink data channel for the data transmission from the second wireless device by indicating a subset of a set of scheduling parameters for the data transmission;
• receiving SCI from the second wireless device indicating a remainder of the set of scheduling parameters that completes scheduling of the sidelink data channel;
• and
• monitoring the subset of the resource pool for the sidelink data transmission.

A method for wireless communication by a second wireless device, the method comprising:

• receiving, from a first wireless device, an indication of a subset of a resource pool allocated for sidelink data transmission from a second wireless device to the first wireless device via signaling included in sidelink control information (SCI), wherein the SCI partially schedules a sidelink data channel for the data transmission from the second wireless device by indicating a subset of a set of scheduling parameters for the data transmission;
• selecting a remainder of the set of scheduling parameters that completes scheduling of the sidelink data channel;
• sending SCI to the first wireless device indicating the remainder of the set of scheduling parameters;
• and
• sending the sidelink data transmission to the first wireless device on the subset of the resource pool.