| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mobile station and a radio base station apparatus capable of more certainly setting the synchronization timing between the mobile station and the radio base station apparatus, when the mobile station establishes a radio link with the radio base station apparatus. <P>SOLUTION: The mobile station transmits a message 1 for establishing the radio link with the radio base station apparatus to the radio base station apparatus. When the radio base station apparatus receives the message 1, the radio base station apparatus transmits a message 2 for giving an instruction on the advance amount (a positive value or zero) of a transmission timing in the mobile station to the mobile station. When the mobile station receives the message 2, the mobile station advances the transmission timing by the advance amount rather than the message 1 and transmits a message 3 to the radio base station apparatus when the instructed advance amount is a positive value, and the mobile station delays the transmission timing by a predetermined period of time rather than the message 1 and transmits the message 3 to the radio base station apparatus when the advance amount is zero. <P>COPYRIGHT: (C)2012,JPO&INPIT |
