Method and system for discovering vacant DTV channels using...

Details Method and system for discovering vacant DTV channels using... Method and system for discovering vacant DTV channels using...

2008-02-27

2011-12-13

Phung, Luat (Department: 2464)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C709S222000, C709S223000, C709S228000

Reexamination Certificate

active

08077710

ABSTRACT:
A wireless client device (e.g. a WSD) discovers vacant DTV channels using location information acquired from a Dynamic Host Configuration Protocol (DHCP) server. In one aspect of the invention, a wireless client device discovers vacant DTV channels through direct communication with a local DHCP server and a remote primary user database server. In another aspect of the invention, a wireless client device discovers vacant DTV channels from an access device that communicates with a local DHCP server and a remote primary user database server.

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J. Polk et al., Dynamic Host Configuration Protocol Option for Coordinate-based Location Configuration Information, IETF RFC 3825, Jul. 2004, 15 pages.

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