Data packet radio service with enhanced mobility management
First Claim
1. A mobile telecommunications network comprising:
- a gateway node through which the mobile telecommunications network is connected to a data packet network;
a serving node which serves a mobile station and which sends an update message to the gateway node prior to the mobile station performing a packet data protocol context activation, the update message providing to the gateway node an address of the serving node for use with the packet data protocol context.
2 Assignments
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Accused Products
Abstract
The address of a latest Serving GPRS Support Node (SGSN) is provided to a Gateway GPRS Support Node (GGSN) by a special Update SGSN Address Request message which is sent from the SGSN to the GGSN. For a subscriber whose subscription permits, the address of the latest SGSN node is sent in the Update SGSN Address Request message for a qualified packet data protocol (PDP) context. A qualified PDP context (1) has a static PDP address; and (2) is not activated. The Update SGSN Address Request message can be sent from the SGSN to the GGSN in either a GPRS Attach scenario or an Inter-SGSN Routing Area Update Scenario. In response to the Update SGSN Address Request message, the GGSN sends an Update SGSN Address Response message which advises whether the updating of the address for the SGSN at the GGSN has been successful.
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Citations
24 Claims
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1. A mobile telecommunications network comprising:
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a gateway node through which the mobile telecommunications network is connected to a data packet network; a serving node which serves a mobile station and which sends an update message to the gateway node prior to the mobile station performing a packet data protocol context activation, the update message providing to the gateway node an address of the serving node for use with the packet data protocol context. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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- 9. A serving node of a mobile telecommunications network, the mobile telecommunications network including a gateway node through which the mobile telecommunications network is connected to a data packet network, and wherein the serving node serves a mobile station and sends an update message to the gateway node prior to the mobile station performing a packet data protocol context activation, the update message providing to the gateway node an address of the serving node for use with the packet data protocol context.
- 17. A method of operating a mobile telecommunications network which comprises a gateway node through which the mobile telecommunications network is connected to a data packet network, the method comprising sending from a serving node, which serves a mobile station, an update message to the gateway node prior to the mobile station performing a packet data protocol context activation, the update message providing to the gateway node an address of the serving node for use with the packet data protocol context.
Specification