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Network-initialized-packet-data-protocol-context-activation-for-multicast-broadcast-services

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Details

Inventors: Sarkkinen, Sinikka; Koulakiotis, Dimitris; Alakoski, Timo;
Assignee: Nokia Corporation (Espoo, FI)
Primary Examiner: Maung; Nay
Assistant Examiner: Sobutka; Philip J.
Attorney, Agent or Firm: Antonelli, Terry, Stout & Kraus, LLP

A method is provided to activate a packet data protocol (PDP) context in a cellular network. This may include determining whether users associated with the cellular network may receive multicast or broadcast data and activating the PDP context based on the determination. The determination may be based on a trigger that occurs when a notification is sent to the Serving GPRS Support Node (SGSN). The SGSN may get notified based on a periodic status query, an update message and/or an activation request, for example.

DETAILED DESCRIPTION A method is provided to activate a packet data protocol (PDP) context in a cellular network.
This method may include determining whether multicast or broadcast users associated with the cellular network may receive multicast or broadcast data and activating the PDP context based on the determination.
The activating may be performed by a Serving GPRS Support Node (SGSN).
The activation may be transparent to user equipment.
The determination may be based on a trigger.
The trigger may occur when a notification is sent to a SGSN.
The SGSN may get notified of a status of the multicast or broadcast service based on a periodic status query, an update message or an activation request, for example.
A system is also provided for performing a multicast or broadcast transmission in a cellular network.
The system may include a core network node to activate a packet data protocol context based on information of users associated with the cellular network.
The core network node may include a SGSN that includes a database related to user information.

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