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:
Aug. 13, 2013
Filed:
Dec. 29, 2010
Stephan Gleixner, Hsinchu, TW;
Jen-shun Yang, Hsinchu, TW;
Jui-tang Wang, Keelung, TW;
Shubhranshu Singh, Bangalore, IN;
Kuei-li Huang, Kaohsiung, TW;
Stephan Gleixner, Hsinchu, TW;
Jen-Shun Yang, Hsinchu, TW;
Jui-Tang Wang, Keelung, TW;
Shubhranshu Singh, Bangalore, IN;
Kuei-Li Huang, Kaohsiung, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A method for application layer gateway (ALG) assisted local IP access (LIPA) at a base station by network address translation (NAT) allows IP capable UEs connected via HeNB or other kinds of Femto cell base station to use LIPA to establish multimedia session with other IP capable entities in the same IP network by NAT. The method relays a LIPA request to IMS, determines whether the terminating entity residing in the same IP network or not, and determines if the originating and terminating entities are allowed to use LIPA, and modifies the transport address information accordingly to facilitate signaling and packet routing. The method also provides the capability to apply different charging policies for LIPA and non-LIPA usages.