Qualcomm incorporated (20250126583). TECHNIQUES FOR TIMING ADVANCE VALIDATION FOR SECONDARY CELL ACTIVATION

TECHNIQUES FOR TIMING ADVANCE VALIDATION FOR SECONDARY CELL ACTIVATION

Organization Name

qualcomm incorporated

Inventor(s)

Jing Lei of San Diego CA US

Changhwan Park of San Diego CA US

TECHNIQUES FOR TIMING ADVANCE VALIDATION FOR SECONDARY CELL ACTIVATION

This abstract first appeared for US patent application 20250126583 titled 'TECHNIQUES FOR TIMING ADVANCE VALIDATION FOR SECONDARY CELL ACTIVATION

Original Abstract Submitted

methods, systems, and devices for wireless communications are described. techniques described herein provide timing advance validation for secondary cell (scell) activation. prior to receiving a scell de-activation message associated with a scell, a user equipment (ue) may determine a ta value for uplink transmissions to the scell, and the ue may determine a first signal quality metric associated with wireless communication between the ue and the scell. the ue may receive the scell de-activation message, and, at a later time, may receive a scell activation message. the ue may determine whether the ta value determined prior to receipt of the scell de-activation message is valid for the wireless communications between the ue and the scell based on a difference between the first signal quality metric and a second signal quality metric determined after receipt of the scell activation message.