Patent ID: 8768392
Filing Date: 2014-07-01
Classification: H04W

Abstract:
1. A timing adjustment method in a mobile communication system having a user equipment and a base station, the timing adjustment method comprising: performing a transmission process based on a first transmission timing adjustment information in the user equipment, wherein the first transmission timing adjustment information is utilized for maintaining uplink synchronization in the base station; allocating, by the base station, a plurality of parameters related to a physical uplink control channel (PUCCH) resource used for a transmission process, between the user equipment and the base station; and if a valid term of the first transmission timing adjustment information expires before transmission of a signal including identification information of the user equipment is performed during a connection process including reception of a second transmission timing adjustment information while the user equipment performs the connection process to the base station using the first transmission timing adjustment information, not transmitting the signal and releasing at least one of the allocated plurality of parameters related to the PUCCH resource.