Patent ID: 6501957
Filing Date: 2002-12-31
Classification: H04L,H04W

Abstract:
A method for forwarding a multicast message received from an external packet data network (PDN) to subscribers (MS) of a packet radio network, comprising the steps of:a) a subscriber informing a Gateway GPRS Support Node (GGSN) of said packet radio network on desired groups for multicast messages which the subscriber wishes to join; b) storing a subscriber-specific information, which defines multicast messages from a multicast content provider to be received by said subscribers, in said Gateway GPRS Support Node, wherein said subscriber-specific information is a list which maps group identities of multicast groups to connection identifications of subscribers belonging to said multicast groups; c) establishing a point to point connection between said Gateway GPRS Support Node and said subscriber, when said subscriber-specific information indicates that multicast messages are to be received by said subscriber; and d) transmitting the multicast message from said multicast content provider to said subscriber via said established point to point connection.