Allocation of HARQ process identifiers to different user equipments or different destinations

A first wireless device comprising:

• at least one transceiver;
• at least one processor;
• and
• at least one memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:
• receiving, from a network via the at least one transceiver, a configuration of a sidelink grant;
• storing the sidelink grant as a configured sidelink grant;
• initializing or re-initializing the configured sidelink grant to determine Physical Sidelink Control Chanel (PSCCH) durations and Physical Sidelink Shared Channel (PSSCH) durations based on a Configured Grant (CG) time offset and a CG time resource, and to reoccur with an CG period for transmissions of multiple Media Access Control (MAC) Protocol Data Units (PDUs),
• wherein the CG time offset is an offset of a resource with respect to a System Frame Number (SFN) in time domain, referring to the number of logical slots in a sidelink resource pool,
• wherein the CG time resource is a time resource location of the configured sidelink grant, and
• wherein the CG period is a periodicity of the configured sidelink grant;
• considering that a first slot of the configured sidelink grant occurs in a logical slot which is based on the SFN, and the CG time offset;
• based on i) a configured sidelink grant confirmation being triggered and not canceled, and ii) uplink resources being allocated, i) generating a sidelink configured grant confirmation MAC Control Element (CE), and ii) canceling the triggered configured sidelink grant confirmation;
• and
• performing, via the at least one transceiver, sidelink transmission to a second wireless device on the resource indicated in the configured sidelink grant.

A base station comprising:

• at least one transceiver;
• at least one processor;
• and
• at least one memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:
• transmitting, to a wireless device via the at least one transceiver, a configuration of a sidelink grant,
• wherein the sidelink grant is stored as a configured sidelink grant,
• wherein the configured sidelink grant is initialized or re-initialized to determine Physical Sidelink Control Chanel (PSCCH) durations and Physical Sidelink Shared Channel (PSSCH) durations based on a Configured Grant (CG) time offset and a CG time resource, and to reoccur with an CG period for transmissions of multiple Media Access Control (MAC) Protocol Data Units (PDUs),
• wherein the CG time offset is an offset of a resource with respect to a System Frame Number (SFN) in time domain, referring to the number of logical slots in a sidelink resource pool,
• wherein the CG time resource is a time resource location of the configured sidelink grant,
• wherein the CG period is a periodicity of the configured sidelink grant, and
• wherein a first slot of the configured sidelink grant occurs in a logical slot which is based on the SFN and the CG time offset.