The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 2000
Filed:
Dec. 18, 1997
Keith W Anderson, Durham, NC (US);
Carl B Toot, Jr, Raleigh, NC (US);
Ericsson Inc., Research Triangle Park, NC (US);
Abstract
Disclosed herein is the method of operating a cellular mobile station to identify a suitable cellular control channel for entering a camping state with a highest priority cellular service provider, based on data stored in the cellular mobile station, that is preferred to a current cellular control channel the mobile station is camping on. The method comprising the steps of: (a) measuring received signal strength of a plurality of available cellular control channels; (b) attempting to lock onto the available cellular control channels having highest signal strength; (c) determining if a locked onto cellular control channel is a highest priority cellular control channel and, if so, then camping on that cellular control channel, and otherwise returning to camping on the current control channel; and (d) periodically interrupting any of steps (a)-(c) to receive control data from the current cellular control channel and then returning to the interrupted step.