초록 ▼

The present invention relates to a protocol-independent routing of data packets between a mobile station of a packet radio network and a party(Host) connected to an external network. In the invention, a data packet of an extraneous protocol(IPX) is transferred through a packet radio network using a

The present invention relates to a protocol-independent routing of data packets between a mobile station of a packet radio network and a party(Host) connected to an external network. In the invention, a data packet of an extraneous protocol(IPX) is transferred through a packet radio network using a second protocol as encapsulated in a data packet according to the second protocol. The transferring packet radio network does not thus need to understand the protocol of the transferred extraneous data packet or to be able to interpret the content of the data packet. A data packet network is connected to other packet radio networks, data networks or the backbone network between packet data networks via a gateway node(GPRS GSN), which uses the network-internal protocol towards the dedicated packet network and the protocol of each network towards other networks. When a data packet is transferred via a gateway node from a network into another network, the data packet is encapsulated in a packet according to the protocol of the new network. When the encapsulated data packet arrives in a node which supports the protocol of the encapsulated data packet, the encapsulation is stripped away and the data packet is routed forward according to the protocol of the data packet.

대표청구항 ▼

[ We claim:] [1.] A packet radio network, comprising:a plurality of support nodes;an internal packet network interconnecting said plurality of support nodes and providing a protocol-independent routing of data packets between a mobile station and a party connected to at least one external network; a

[ We claim:] [1.] A packet radio network, comprising:a plurality of support nodes;an internal packet network interconnecting said plurality of support nodes and providing a protocol-independent routing of data packets between a mobile station and a party connected to at least one external network; anda database for maintaining information which maps at least one network address of said mobile station with dynamic roaming information, said dynamic roaming information being inserted into a mobile terminating data packet encapsulated according to said internal protocol of said packet radio network in order to enable routing of said mobile terminating data packet to said one of said support nodes within an area in which said mobile station is located, whereineach of said plurality of support nodes uses an internal protocol of said packet radio network towards said internal packet network,at least one of said plurality of support nodes, which serves at least one mobile station use a radio interface link protocol towards a radio interface,a gateway support node, which interfaces said packet radio network to said at least one external network, uses a protocol of said external network towards said external network, andduring internal routing of said packet radio network, a data packet received from said mobile station or said external network is encapsulated according to said internal protocol of said packet radio network.