Wireless device authentication at mutual reduced transmit power

Details Wireless device authentication at mutual reduced transmit power Wireless device authentication at mutual reduced transmit power

2005-08-09

2005-08-09

Beamer, Temica M. (Department: 2681)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S410000, C455S435100, C455S041200, C455S041300

Reexamination Certificate

active

06928295

ABSTRACT:
A system and method for facilitating the authentication of wireless devices in an environment with multiple wireless networks. A user wishing to join an operating wireless network can bring his wireless device within close physical proximity, for example, less than one meter, of a device in the network that he wishes to join. The user then presses an authenticate button, which causes both devices to enter a low transmission power mode. In such case, the devices are only capable of operation within the close proximity. Being in low power mode will diminish the possibility of eavesdropping on the authentication process. Power down mode also reduces the amount of message traffic in the area and saves scarce power and processing resources at the nodes, which are now out of range. Authentication then takes place in low power mode and once completed, both devices resume normal power levels and continue communicating normally.

REFERENCES:
patent: 0 691 775 (1996-01-01), None
patent: 2 342 010 (2000-03-01), None
Bluetooth: “Bluetooth Specification Version 1.0 B (Core)” Specification of the Bluetooth System, Online! vol. 1, Dec. 1, 1999 XP000864213.

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