User equipment timing advance validation window design for frequency range 2 (fr2) small data transfer (sdt)

A method for wireless communication at a user equipment (UE), the method comprising:

• receiving, from a base station, configuration information, the configuration information specifying a configuration for Reference Signal Received Power (RSRP) change-based TA validation to be met in order to perform a small data transfer (SDT) while in the RRC inactive state, the RSRP change-based TA validation using configured TA validation criteria that is evaluated based on two measurement windows for timing advance (TA) validation, at least one boundary of at least one of the two measurement windows for TA validation being based on a minimum, existing at time of TA validation criteria evaluation, of either a Frequency Range 2 (FR2) measurement period and a scaled Discontinuous Reception (DRX) cycle period;
• determining whether a TA is valid based on an RSRP change associated with measured RSRP values obtained during the measurement windows for TA validation;
• and
• transmitting, in response to determining the TA is valid, uplink data using a configured grant (CG)-SDT (CG-SDT) resource while the UE is in an RRC inactive state.

A base station configured to perform operations of:

• determining a configuration for a UE, wherein the configuration is included in configuration information that specifies a configuration for Reference Signal Received Power (RSRP) change-based TA validation to be met in order to perform a small data transfer (SDT) while in the RRC inactive state, the RSRP change-based TA validation using configured TA validation criteria that is evaluated based on two measurement windows for timing advance (TA) validation, at least one boundary of at least one of the two measurement windows for TA validation being based on a minimum, existing at time of TA validation criteria evaluation, of either a Frequency Range 2 (FR2) measurement period and a scaled Discontinuous Reception (DRX) cycle period;
• sending the configuration information to the UE;
• and
• receiving uplink data from the UE sent as a SDT using a configured grant (CG)-SDT (CG-SDT) resource.