Network-assisted scheduling for packet duplication in vehicle-based sidelink communication

A method for wireless communication at a base station, comprising:

• receiving a first message comprising a request from a user equipment (UE) for resources, the request comprising an indication of a profile for vehicle-based sidelink communications and an identifier that identifies a subset of carrier frequencies of a set of carrier frequencies to use for packet duplication based at least in part on a traffic pattern of the profile, during the vehicle-based sidelink communications;
• receiving, in response to the first message, a second message comprising a reliability metric associated with the profile for the vehicle-based sidelink communications;
• determining whether to support the packet duplication for the vehicle-based sidelink communications based at least in part on the reliability metric satisfying a threshold value;
• and
• transmitting one or more grants to the UE for semi-persistent scheduling (SPS) resources allocated on the set of carrier frequencies in response to the request.

An apparatus for wireless communications, comprising:

• a processor,
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor, to cause the apparatus to:
• determine that a profile for vehicle-based sidelink communications supports packet duplication using a set of carrier frequencies;
• transmit a first message comprising a request to a base station for resources to use to perform the vehicle-based sidelink communications, the request comprising an indication of the profile and an identifier that identifies a subset of carrier frequencies of the set of carrier frequencies to use for the packet duplication based at least in part on a traffic pattern of the profile for the vehicle-based sidelink communications;
• transmit, in response to the first message, a second message comprising a reliability metric associated with the profile for the vehicle-based sidelink communications, wherein the packet duplication for the vehicle-based sidelink communications is supported based at least in part on the reliability metric satisfying a threshold value;
• and
• receive one or more grants from the base station for semi-persistent scheduling (SPS) resources allocated on the set of carrier frequencies in response to the request.

An apparatus for wireless communications, comprising:

• a processor,
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor, to cause the apparatus to:
• receive a first message comprising a request from a user equipment (UE) for resources, the request comprising an indication of a profile for vehicle-based sidelink communications and an identifier that identifies a subset of carrier frequencies of a set of carrier frequencies to use for packet duplication based at least in part on a traffic pattern of the profile, during the vehicle-based sidelink communications;
• receive, in response to the first message, a second message comprising a reliability metric associated with the profile for the vehicle-based sidelink communications;
• determine whether to support the packet duplication for the vehicle-based sidelink communications based at least in part on the reliability metric satisfying a threshold value;
• and
• transmit one or more grants to the UE for semi-persistent scheduling (SPS) resources allocated on the set of carrier frequencies in response to the request.