Timing adjustment method in a mobile communication system that performs an adjustment of uplink transmission timing by random access between a user equipment and a base station

摘要

A mobile communication system having a user equipment that performs transmission process having transmission timing adjustment information and a base station that receives a signal sent from the user equipment, the mobile communication system includes, if a timer controlling a term of application of 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 second transmission timing adjustment information while the user equipment has the first transmission timing adjustment information and performing the connection process to the base station, the user equipment does not transmit the signal.

主权项

1. A mobile communication system having user equipment that performs transmission process having transmission timing adjustment information and a base station that receives a signal sent from the user equipment, the mobile communication system comprising:
when, during a connection process, a timer that is in accordance with first transmission timing adjustment information expires before the user equipment transmits a signal that includes identification information of the user equipment, the user equipment does not transmit the signal that includes the identification information of the user equipment, wherein the connection process includes reception of second transmission timing adjustment information while the user equipment contains the first transmission timing adjustment information, wherein the connection process connects the user equipment to the base station.