Apparatus and method for controlling transmission power in a...

Multiplex communications – Communication over free space – Signaling for performing battery saving

Reexamination Certificate

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C370S230000, C370S318000

Reexamination Certificate

active

07821976

ABSTRACT:
A method and system for controlling the transmission power of a terminal transmitting frames in a wireless communication system, the frames having a frame structure including a header field containing information related to a transmission rate and length of data transmitted in a frame and a data field having the data. The transmitting terminal transmits the header field to a receiving terminal at a maximum transmit power level available to the transmitting terminal so that second terminals other than the transmitting terminal and the receiving terminal within the wireless communication system can identify that resources are in use. The transmitting terminal transmits the data field at an optimum transmit power level great enough to allow the data field to reach the receiving terminal.

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patent: 2004/0111663 (2004-06-01), Lewis
patent: 2005/0083867 (2005-04-01), Dombrowski
patent: 2007/0060132 (2007-03-01), Wilhelmsson et al.
Jung, Eun-Sun, et al., “A Power Control MAC Protocol for Ad Hoc Networks,” Proceedings of the 8thAnnual International Conference on Mobile Computing and Networking Mobicom, Sep. 23, 2002, pp. 36-47.
Ae-Ri Lim, et al., “Hierarchical Access Scheme Based on Adjustable Maximum Transmission Power Level in Wireless Ad Hoc Networks,” Vehicular Technology Conference, 2003, pp. 2814-2818.
Agarwal, Sharad, et al., “Distributed Power Control in Ad-hoc Wireless Networks,” IEEE International Symposium on Personal, Indoor and Mobileradio Communications, vol. 2., Sep. 2001, pp. F59-F66.

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