Sidelink radio frame timing synchronization

A first sidelink device, comprising:

• a processor;
• a wireless transceiver communicatively coupled to the processor and configured to communicate over a sidelink carrier;
• and
• a memory communicatively coupled to the processor, wherein the processor and the memory are configured to:
• detect a sidelink synchronization signal received via a received radio frame over the sidelink carrier, wherein the sidelink synchronization signal originates from a second sidelink device;
• determine sidelink reception timing associated with the received radio frame based on the sidelink synchronization signal;
• determine a timing advance value indicative of a propagation delay from the second sidelink device to the first sidelink device;
• calculate sidelink transmission timing based on the sidelink reception timing and the timing advance value;
• and
• transmit information within a transmitted radio frame over the sidelink carrier based on the sidelink transmission timing.