Communication system supporting wireless communication of packet data and method and arrangement relating thereto
First Claim
1. A communication system supporting communication of packet data and comprising a core network, which comprises a number of packet data support nodes and a number of gateway nodes for communication with external packet data networks, and a number of radio networks, each radio network comprising radio network control means, characterized in that each of at least some of the packet data support nodes comprises a separate functional server node, and in that a number of said functional server nodes are provided to, in common, control at least a number of radio network control means such that said functional server nodes form a pool of functional server nodes, in which each functional server node is able to control any radio network control means.
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Accused Products
Abstract
The present invention relates to a communication system supporting communication of packet data. It comprises a core network, which comprises a number of packet data support nodes and a number of gateway nodes for communication with external packet data networks, and a number of radio networks. Each radio network comprises radio network control means. Each of at least some of the packet data support nodes comprises a separate functional server node. A number of said functional server nodes are provided to, in common, control at least a number of radio network control means such that said functional server nodes form a pool of functional server nodes, in which each functional server node is able to control any radio network control means.
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Citations
29 Claims
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1. A communication system supporting communication of packet data and comprising a core network, which comprises a number of packet data support nodes and a number of gateway nodes for communication with external packet data networks, and a number of radio networks, each radio network comprising radio network control means,
characterized in that each of at least some of the packet data support nodes comprises a separate functional server node, and in that a number of said functional server nodes are provided to, in common, control at least a number of radio network control means such that said functional server nodes form a pool of functional server nodes, in which each functional server node is able to control any radio network control means.
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19. A packet data support node, for mobility and session management in a communication system supporting communication of packet data, supporting at least a server functionality and comprising a functional server node (FSN;
- SGSN server),
characterized in that the functional server node (FSN;
SGSN server) forms part of a pool of functional server nodes and in that it, in common with the other functional server nodes of the pool, is able to serve at least part of the communication system. - View Dependent Claims (20, 21, 22, 23)
- SGSN server),
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24. A method of, in a communication system comprising a core network and a number of radio networks and supporting communication of packet data, controlling connections between user stations and/or user stations and external packet data networks, wherein user stations are connected to radio networks, each radio network being controlled by radio network control means, wherein further packet data support nodes are provided for controlling radio network control means, a packet data support node comprising at least a functional server node,
characterized in that it comprises the step of: -
providing a number of pools of functional server nodes;
commonly controlling at least a part of the network by the functional server nodes in a pool;
such that each server node of the pool may control any connection irrespectively of which is the radio network within the commonly controlled part of the network. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification