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. 01, 2005
Filed:
Aug. 06, 2002
Jheroen P. Dorenbosch, Paradise, TX (US);
David L. Raymer, Watauga, TX (US);
Jheroen P. Dorenbosch, Paradise, TX (US);
David L. Raymer, Watauga, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A methodof and wireless communications unitfor effecting a handoff from a first Internet Protocol (IP) connectionto a second IP connectionfor a time critical communication is disclosed. The method includes communicatingbetween a first wireless stationand a second stationusing the first IP connection and a first IP addressfor the first wireless station; setting upthe second IP connection with a second IP address for the first wireless station, the first IP connection being a primary connection and the second IP connection being a secondary connection, both existing concurrently; determiningthat the second IP connection should be the primary connection; and changingthe second IP connection to the primary connection by informing the second station that the second IP address is the primary address using stream control transmission protocol (SCTP) messages, wherein the time critical communication is immediately switched over to the second IP connection.