Adaptive transmission timing control method, wireless...

Details Adaptive transmission timing control method, wireless... Adaptive transmission timing control method, wireless...

2006-07-26

2009-08-18

Pérez-Gutiérrez, Rafael (Department: 2617)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S503000, C370S520000, C370S519000

Reexamination Certificate

active

07577167

ABSTRACT:
In a method for adaptive transmission timing control, the overlooking of a base path at the side of the base station that occurs when the transmission timing offset amount changes to the extent of falling outside the current delay-profile calculation range, and the side of the mobile station fails to demodulate the control information that contains the transmission timing offset amount, is prevented. A limit is put on the transmission timing offset amount applied in a single transmission timing control iteration. Together with setting the transmission timing offset value such that the main component of the delay profile calculated from the pilot signal transmitted with offset transmission timing falls within the time range of when the current delay profile was calculated, the time range for calculating the next delay profile is shifted such that a delay profile calculated from the pilot signal transmitted with offset transmission timing falls within the shifted range, starting at the earliest component.

REFERENCES:
patent: 7286519 (2007-10-01), Eppinger et al.
patent: 2004/0033780 (2004-02-01), Kelly
patent: 2004/0202146 (2004-10-01), Lee
Kawamura, Teruo, et al., “Adaptive Transmission Timing Control Using Reservation Packet in Reverse Link for DS-CDMA Broadband Wireless Access,” Technical Report of the Institute of Electronics, Information and Communication Engineers, RCS 2003-141, pp. 13-18.

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