UPLINK SYNCHRONIZATION PROCESSING METHOD, USER EQUIPMENT AND BASE STATION

摘要

An uplink synchronization processing method, a User Equipment (UE), and a base station are provided. The method includes: receiving a component carrier (CC) uplink synchronization indication message sent by a base station, where the uplink synchronization indication message carries identification information of one or multiple newly configured CCs; sending synchronization signaling to the base station when knowing that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information; and receiving a time advanced (TA) adjusting message that is sent by the base station according to the synchronization signaling, and applying a TA value carried in the TA adjusting message to the CC on which the uplink synchronization needs to be executed. When the base station needs to configure a new CC for the UE, or one or multiple CCs currently used by the UE needs to be replaced by newly configured CCs, the UE may achieve the uplink synchronization with the newly configured CCs by using the obtained TA value.