QUALCOMM Incorporated
TIMING ADVANCE SIMPLIFICATION FOR STATIONARY AND LOW MOBILITY USER EQUIPMENTS

Abstract:

A user equipment (UE) in a radio resource connection (RRC) inactive or idle state may initiate a random access procedure with a base station (BS) for initial access to a network, to resume an RRC connection, to re-establish an RRC connection, or to perform an early data transmission to a network. The BS may selectively include a timing advance (TA) medium access control (MAC) control element (CE) and an indication of a simplified timing advance command for the UE. The aspects herein may reduce the signaling overhead of the TA MAC CE. For example, the UE may enter an idle state or an inactive state. The UE may transmit a random access message to the BS with a request for timing advance simplification based, at least in part, on a TA value corresponding to the BS, wherein the TA value is applied to the transmission of the random access message.