Method for measuring the timing of a received signal in a commun

Details Method for measuring the timing of a received signal in a commun Method for measuring the timing of a received signal in a commun

1996-09-30

1998-11-17

Hsu, Alpus H.

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

370337, 375210, 375231, 455517, H03H 730, H03K 5159, H04Q 700

Patent

active

058386726

ABSTRACT:
The invention relates to a method for measuring the timing of a received signal in a digital time division communication system and to a mobile station implementing the method. The mobile station receives bursts transmitted by a base station and measures the timing by means of a training sequence included in a burst. In the method according to the invention, the timing is measured by means of training sequences of at least two received bursts. In this way, the timing measurement result is more accurate than what is obtained by prior art methods. To improve the resolution of the measurement result, the sampled signal is advantageously interpolated in order to increase the number of samples. In addition, the measurement is performed in two steps so that first it is measured the timing of a burst with a long training sequence to obtain a timing estimate, and then it is performed a refined timing measurement by means of at least two bursts having a short or a long training sequence.

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