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:
Feb. 19, 2008
Filed:
Oct. 24, 2003
Donald A. Dorsey, Vernon Hills, IL (US);
Srikrishna M R, Bangalore, IN;
Sharada Raghuram, Buffalo Grove, IL (US);
Donald A. Dorsey, Vernon Hills, IL (US);
Srikrishna M R, Bangalore, IN;
Sharada Raghuram, Buffalo Grove, IL (US);
Motorola Inc., Schaumburg, IL (US);
Abstract
An emergency call placement method () used in user equipment in idle mode camped on a first cell of a wireless communication network having a first radio access technology includes the steps of requesting () a radio resource control connection using 'emergency call' as an establishment request, changing () to a new cell in a different location area or routing area than the first cell, and requesting again () a radio resource control connection using 'emergency call' as an establishment request. This method avoids performing a location area update or a routing area update when the user equipment changes to a new cell during an emergency call and thus may speed up placement of the emergency call by several seconds.