| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a UL synchronization acquisition method for a portable internet measuring instrument, having a synchronization obtaining function, by which analysis can be performed by obtaining UL synchronization of a terminal device by the portable internet measuring instrument, without the use of a base station utilizing a predetermined test mode provided to the terminal device. <P>SOLUTION: The terminal device includes a test mode which produces a UL sub-frame when having received a DL sub-frame including CID information assigned in advance to the terminal device without network entry processing between the terminal and the base station. The portable internet measuring instrument includes a signal generating means and a signal analyzing means. The signal generating means performs A/D conversion of a DL sub-frame and RF modulation to output the sub-frame. Then, the signal analyzing means receives the input of the UL sub-frame from the terminal device, performs RF demodulation of the UL sub-frame modulated and further carries out A/D conversion and acquires the UL sub-frame demodulated. Then, the signal analyzing means compares the UL sub-frame stored in advance with the data captured by a time correlation method and acquires UL synchronization. <P>COPYRIGHT: (C)2008,JPO&INPIT |
