METHOD FOR ADJUSTING TRANSMISSION TIMING IN MULTIPLE ACCESS SYSTEM

摘要

A method for adjusting a transmission timing of a terminal station, which is performed at a base station in a Time-Division Duplex communication system, is disclosed. The method includes (a) receiving ranging signals or other reference signals, transmitted from a terminal station; (b) determining whether transmission timing at the terminal station is appropriate or not, by referring to the ranging signals transmitted from the terminal station; and (c) transmitting a value for adjusting the transmission timing at the terminal station. The value of the transmission timing is a value of the integral multiples of the timing offset detection capability of the ranging signal, or a value calculated by referring to the received reference signals, which have assigned with a different interval from an interval of the ranging signals.

主权项

1. A method for adjusting a transmission timing of a terminal station, being performed at a base station in a Time-Division Duplex communication system, the method comprising steps of:
(a) receiving a ranging signal, identified by the Time-Division Duplex communication system, transmitted from a terminal station; (b) determining whether a transmission timing at the terminal station is appropriate, based at least in part on the ranging signal transmitted from the terminal station; (c) generating an adjusting value of the transmission timing for the terminal station, by calculating an integral multiple of a timing offset detection capability, the timing offset detection capability being identified by referring to the ranging signal; (d) transmitting the adjusting value of the transmission timing to the terminal station; and (e) repeating the steps (a) to (d) until an adjustment of the transmission timing at the terminal station is appropriate in the step (b), by adding one to the integral multiple, wherein an initial integral multiple is one in the step (c).