Timing advance validation for small data transmission

A first device, comprising:

• at least one processor;
• and
• at least one memory including computer program codes;
• wherein the at least one memory and the computer program codes are configured to, with the at least one processor, cause the first device to:
• receive, from a second device, a configured grant (CG) resource configuration for small data transmission associated with one or more downlink reference beams for an inactive state of the first device;
• receive, from the second device, Timing Advance (TA) validation configuration information associated with the CG resource configuration;
• select a CG resource to transmit a data packet to the second device based on the CG resource configuration;
• and
• determine, based at least on the TA validation configuration information and the selected CG resource, TA validity of the first device.

A method comprising:

• receiving, from a second device, configured grant (CG) resource configuration for small data transmission associated with one or more downlink reference beams for an inactive state of a first device;
• receiving, from the second device, timing advance (TA) validation configuration information associated with the CG resource configuration;
• selecting a CG resource to transmit a data packet to the second device based on the CG resource configuration of the first device, and
• determining, based at least on the TA validation configuration information and the selected CG resource, TA validity of the first device.

A non-transitory computer readable medium comprising program instructions for causing a first device to perform at least:

• receiving, from a second device, configured grant (CG) resource configuration for small data transmission associated with one or more downlink reference beams for an inactive state of the first device;
• receiving, from the second device, timing advance (TA) validation configuration information associated with the CG resource configuration;
• selecting a CG resource to transmit a data packet to the second device based on the CG resource configuration of the first device, and
• determining, based at least on the TA validation configuration information and the selected CG resource, TA validity of the first device.