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.

Date of Patent:
Jul. 21, 2015

Filed:

Mar. 07, 2013
Applicant:

Sprint Communications Company L.p., Overland Park, KS (US);

Inventors:

Asfaw Negeri, Overland Park, KS (US);

Rajil Malhotra, Olathe, KS (US);

Imtiaz Ahmad, Overland Park, KS (US);

Farni Weaver, Spring Hill, KS (US);

Assignee:

Sprint Communications Company L.P., Overland park, KS (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); H04W 36/00 (2009.01); H04W 72/00 (2009.01); H04W 24/00 (2009.01); H04W 48/08 (2009.01);
U.S. Cl.
CPC ...
H04W 48/08 (2013.01);
Abstract

Embodiments of the present invention direct a mobile device to communicate using a particular radio access technology when multiple access technologies are available. Many mobile devices have the capability to use multiple radio access technologies. The process of providing access guidance to the mobile device at a point in time is described herein as a radio access discovery and selection event. Embodiments of the present invention may complete the event using only two messages. In one embodiment, the first message is a SIP OPTIONS message communicated from the mobile device to the access guidance component. This message identifies the mobile device and the mobile device's present location. In one embodiment, the location identification information is communicated within the PANI header. In response, the access guidance component communicates a preferred radio access technology within a SIP 200 OK message.


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