Methods and apparatus for synchronization for sidelink positioning and sidelink communication sessions

A user equipment (UE) configured for supporting sidelink positioning of the UE, comprising:

• a wireless transceiver configured to communicate with entities in a wireless network;
• at least one memory;
• and
• at least one processor coupled to the wireless transceiver and the at least one memory, wherein the at least one processor is configured to:
• detect, via the wireless transceiver, one or more sidelink UEs that are available for sidelink positioning;
• determine, via the wireless transceiver, a synchronization reference of each of the one or more sidelink UEs;
• and
• select sidelink UEs for the sidelink positioning based on the synchronization reference associated with each of the one or more sidelink UEs.

A method performed by a user equipment (UE) for supporting sidelink positioning of the UE, comprising:

• detecting one or more sidelink UEs that are available for sidelink positioning, wherein each sidelink UE is synchronized with a synchronization source;
• determining a synchronization quality for each of the one or more sidelink UEs;
• and
• selecting a positioning method for the sidelink positioning with the one or more sidelink UEs based on the synchronization quality for each of the one or more sidelink UEs.

A user equipment (UE) configured for supporting sidelink positioning of the UE, comprising:

• a wireless transceiver configured to communicate with entities in a wireless network;
• at least one memory;
• and
• at least one processor coupled to the wireless transceiver and the at least one memory, wherein the at least one processor is configured to:
• detect one or more sidelink UEs that are available for sidelink positioning, wherein each sidelink UE is synchronized with a synchronization source;
• determine a synchronization quality for each of the one or more sidelink UEs;
• and
• select a positioning method for the sidelink positioning with the one or more sidelink UEs based on the synchronization quality for each of the one or more sidelink UEs.