Zone management and hybrid automatic repeat request for sidelink in a wireless communication system

A wireless device comprising:

• one or more processors;
• and
• memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
• receive, by a first wireless device from a base station, a radio resource control (RRC) message comprising a list of sidelink configurations for sidelink communications, wherein each of the sidelink configurations comprises a communication range threshold for sidelink transmissions;
• and
• transmit, by the first wireless device to one or more second wireless devices, sidelink control information (SCI) comprising:
• a first index, in the list of the sidelink configurations, indicating one of the communication range thresholds of the sidelink transmissions;
• and
• a zone identifier indicating a geographic location of the first wireless device.

A system comprising:

• a base station comprising:
• one or more first processors and first memory storing first instructions that, when executed by the one or more first processors, cause the base station to:
• transmit a radio resource control, RRC, message comprising a list of sidelink configurations for sidelink communications, wherein each of the sidelink configurations comprises a communication range threshold for sidelink transmissions;
• a first wireless device comprising:
• one or more second processors and second memory storing second instructions that, when executed by the one or more second processors, cause the first wireless device to:
• receive, from the base station, the RRC message comprising the list of sidelink configurations;
• and
• transmit sidelink control information (SCI) comprising:
• a first index, in the list of the sidelink configurations, indicating one of the communication range thresholds of the sidelink transmissions;
• and
• a zone identifier indicating a geographic location of the first wireless device;
• and
• a second wireless device comprising:
• one or more third processors and third memory storing second instructions that, when executed by the one or more third processors, cause the second wireless device to:
• receive, from the first wireless device, the SCI comprising:
• the first index indicating the communication range threshold corresponding to the sidelink configuration of the list of sidelink configurations;
• and
• the zone identifier indicating a geographic location of the first wireless device.