Timing advance (TA) handling for sidelink (SL)-assisted positioning

A first User Equipment (UE) comprising:

• a transceiver;
• a memory;
• and
• one or more processors communicatively coupled with the transceiver and the memory, wherein the one or more processors are configured to:
• receive, via the transceiver, a Timing Advance (TA) command from a serving Transmission Reception Point (TRP) of the first UE during a guard period, wherein the guard period comprises a period of time during which an SL Positioning Reference Signal (SL-PRS) is transmitted by the first UE;
• apply the TA command during the guard period;
• transmit the SL-PRS via the transceiver to a second UE;
• and
• send, via the transceiver, a report to a network node, wherein the report comprises:
• a time adjustment of a transmission time of the SL-PRS based on applying the TA command during the guard period,
• a PRS resource identifier (ID) of the SL-PRS, and
• an indication of one or more occasions of the SL-PRS impacted by applying the TA command.

An apparatus for Timing Advance (TA) handling for sidelink (SL)-assisted positioning of a first User Equipment (UE), the apparatus comprising:

• means for receiving a TA command from a serving Transmission Reception Point (TRP) during a guard period, wherein the guard period comprises a period of time during which an SL Positioning Reference Signal (SL-PRS) is transmitted by the first UE;
• means for applying the TA command during the guard period;
• means for transmitting the SL-PRS to a second UE;
• and
• means for sending a report to a network node, wherein the report comprises:
• a time adjustment of a transmission time of the SL-PRS based on applying the TA command during the guard period,
• a PRS resource identifier (ID) of the SL-PRS, and
• an indication of one or more occasions of the SL-PRS impacted by applying the TA command.

A non-transitory computer-readable medium storing instructions for Timing Advance (TA) handling for sidelink (SL)-assisted positioning of a first User Equipment (UE), the instructions comprising code for:

• receiving, at a first UE, a TA command from a serving TRP Transmission Reception Point (TRP) during a guard period, wherein the guard period comprises a period of time during which an SL Positioning Reference Signal (SL-PRS) is transmitted by the first UE;
• applying the TA command during the guard period;
• transmitting the SL-PRS to a second UE;
• and
• sending, from the first UE, a report to a network node, wherein the report comprises:
• a time adjustment of a transmission time of the SL-PRS based on applying the TA command during the guard period,
• a PRS resource identifier (ID) of the SL-PRS, and
• an indication of one or more occasions of the SL-PRS impacted by applying the TA command.