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:
Nov. 04, 2008
Filed:
May. 14, 2003
Naveen Aerrabotu, Gurnee, IL (US);
Lawrence A. Willis, McHenry, IL (US);
Mark E. Pecen, Palatine, IL (US);
Yilin Zhao, Northbrook, IL (US);
Naveen Aerrabotu, Gurnee, IL (US);
Lawrence A. Willis, McHenry, IL (US);
Mark E. Pecen, Palatine, IL (US);
Yilin Zhao, Northbrook, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method and apparatus method of filtering packet data for an anonymous user device in a packet data network communication system includes a first step of defining a special context information element containing special context information. A next step includes sending the special context information element in an activate packet data protocol (PDP) context request to a network to initiate a call from an anonymous user device. A next step includes receiving the activate PDP context request and the special context information element. A next step includes configuring the data packets so that only the special context is allowed. A next step includes assigning an interim identity and interim IP address to the user device. A next step includes mapping the data packets of the configuring step to the interim IP address of the user device. A next step includes defining permissible routing identities per the special context. A next step includes routing the data packets between only those permissible routing identities from the defining step.