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:
Sep. 05, 2006
Filed:
Oct. 11, 2001
Surender Kumar, Naperville, IL (US);
Mark Shaughnessy, Phoenix, AZ (US);
James E. Mathis, Barrington, IL (US);
Gregory A. Dertz, Algonquin, IL (US);
Michael D. Sasuta, Mundelein, IL (US);
Surender Kumar, Naperville, IL (US);
Mark Shaughnessy, Phoenix, AZ (US);
James E. Mathis, Barrington, IL (US);
Gregory A. Dertz, Algonquin, IL (US);
Michael D. Sasuta, Mundelein, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A wireless communication systemcomprises a connectionless packet networkcoupled to a plurality of sites. Upon a first communication unit () initiating a call request for a 2-party call with a second communication unit (), a call serveridentifies respective multicast IP addresses (MC, MC) associated with the source and target. If the first communication unit, or its associated site () desires to send payload to the second communication unit, it addresses the payload to the multicast IP address (MC) of the second communication unit, and the second communication unit, or its associated sitejoins the multicast address MCto receive the payload. Conversely, if the second communication unit, or its associated site () desires to send payload to the first communication unit, it addresses the payload to the multicast IP address (MC) of the first communication unit, and the first communication unit, or its associated sitejoins the multicast address MCto receive the payload.