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:
Mar. 16, 2010
Filed:
Aug. 14, 2002
Niklas Lundin, Gothenburg, SE;
Karl-henrik Henriksson, Gothenburg, SE;
Tobjorn Lundin, Gothenburg, SE;
Lars Ekeroth, Vastra Frolunda, SE;
Frank Hundscheidt, Kerkrade, NL;
Lohmar Thorsten, Aachen, DE;
Ralf Keller, Wurselen, DE;
Niklas Lundin, Gothenburg, SE;
Karl-Henrik Henriksson, Gothenburg, SE;
Tobjorn Lundin, Gothenburg, SE;
Lars Ekeroth, Vastra Frolunda, SE;
Frank Hundscheidt, Kerkrade, NL;
Lohmar Thorsten, Aachen, DE;
Ralf Keller, Wurselen, DE;
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Abstract
A packet radio data network and methods have been disclosed, the network comprising at least a gateway node (GGSN), at least one serving node (SGSN) connected to the gateway node, a plurality of radio access nodes (RAN) connected to the serving node (SGSN), the packet radio network transporting packet data from an external packet data network, comprising an Internet Service Provider (ISP), to mobile stations (MS) wirelessly attached to radio access nodes (RAN). The gateway node, subsequent to a PDP multipoint context activation procedure, establishes at least a first multicast tunnel (GTPTGTPT, GTPTGTP) between the gateway node and at least one serving node, the multicast tunnel carrying IP streams pertaining to at least two mobile stations belonging to a common multicast group.