Method, computer program and transceiver module for adapting a time synchronization

A method for adapting a time synchronization between a mobile device and a transceiver module of a plurality of transceiver modules, wherein the method is performed by the transceiver module, the method comprising:

• listening, in at least some of a plurality of time slots, for a time synchronization signal from a further transceiver module of the plurality of transceiver modules, wherein the plurality of transceiver modules are arranged at different positions in a vehicle, wherein each time slot of the plurality of time slots is allocated to a corresponding transceiver module of the plurality of transceiver modules;
• adapting the time synchronization when a received time synchronization signal has a higher estimated accuracy than the time synchronization between the mobile device and the transceiver module;
• and
• transmitting a time synchronization signal for the further transceiver modules based at least in part on the time synchronization between the mobile device and the transceiver module, adapting, based at least in part on the adapted time synchronization, a time period intended for receiving signals by a transceiver of the transceiver module,
• wherein the time period intended for receiving signals by the transceiver is adapted, for receiving a positioning signal from the mobile device, based at least in part on the adapted time synchronization.

A transceiver module comprising:

• one or more processors;
• and
• one or more transceivers, wherein the transceiver module is configured to adapt a time synchronization between a mobile device and the transceiver module by:
• listening by means of a transceiver of the one or more transceivers, in at least some of a plurality of time slots, for a time synchronization signal from a further transceiver module of a plurality of transceiver modules, wherein each time slot of the plurality of time slots is allocated to a corresponding transceiver module of the plurality of transceiver modules, wherein the plurality of transceiver modules comprises the transceiver module;
• adapting the time synchronization when a received time synchronization signal has a higher estimated accuracy than the time synchronization between the mobile device and the transceiver module;
• and
• transmitting, by means of the transceiver, a time synchronization signal for the further transceiver module based at least in part on the time synchronization between the mobile device and the transceiver module;
• and
• wherein the transceiver module is further configured to adapt an estimated accuracy of the time synchronization between the mobile device and the transceiver module based at least in part on a length of time since the last adaptation of the time synchronization, based at least in part on an estimated accuracy of the time synchronization signal on which the last adaptation of the time synchronization is based, and based at least in part on an accuracy of a clock of the transceiver module.