Method and mobile radio communication network for the transmission of packet data
View Patent ↗The invention relates to a method for controlling the exchange of data between mobile subscribers in a packet-oriented mobile communication network, wherein management of each subscriber occurs at a specific control node (SGSN) of the mobile communication network according to the actual whereabouts of the subscriber inside the mobile communication network; links from/to a mobile communication transmitter device of the mobile subscriber are controlled inside the mobile communication network by the corresponding control node; wherein an address register comprising all of the addresses allocated to mobile subscribers managed by said control node is stored in the control network node; a destination address allocated to the data packets is read out in the control network node from incoming data packets and is compared to the address register by means of a search function; if the destination address is available in the address register, the data packets are exclusively handled by the control node in the mobile communication network and are further transmitted; if the destination address is missing in the address register, the data packets are transmitted by the control node to another network node (GGSN) of the mobile communication network for further processing.
1. A method for controlling data interchange between mobile subscribers in a packet-oriented mobile communication network, comprising:
managing each subscriber at a particular control network node in the mobile communication network on the basis of his respective current location in the mobile communication network, and
controlling connections from/to a mobile communication terminal associated with the mobile subscriber within the mobile communication network by the appropriate control network node,
wherein
the control network node stores an address register containing all of the addresses associated with the mobile subscribers managed by the control network node,
the control network node takes incoming data packets and reads a destination address associated with the data packets, and uses a search function to compare said destination address with the address register,
if the destination address is present in the address register then the data packets are handled and forwarded within the mobile communication network exclusively by the control network node, and
if the destination address is absent from the address register then the data packets are routed from the control network node to a further network node in the mobile communication network for the purpose of further handling.
2. The method as claimed in claim 1 , wherein the address register chosen is a “hashing table” with a hash function.
3. The method as claimed in claim 1 , wherein the mobile radio communication network chosen is a GPRS or UMTS network.
4. A mobile radio communication network having at least one control network node, at which mobile subscribers in the mobile radio communication network are managed on the basis of their current location and connections from/to a communication terminal associated with a mobile subscriber managed at the control network node are controlled within the mobile radio communication network,
wherein the control network node contains a filter function which is used to filter incoming data packets on the basis of a destination address which is respectively indicated in the data packets.
5. The mobile radio communication network as claimed in claim 4 ,
wherein the control network node contains a table which records all subscribers managed by the control network node with the addresses appropriately associated with the subscribers.
6. The mobile radio communication network as claimed in claim 5 ,
wherein the filter function is able to perform a comparison between a destination address indicated in a data packet and the table's recorded addresses appropriately associated with the subscribers.
7. The mobile radio communication network as claimed in claim 4 , wherein the control network node contains a routing function which can be used to route selected data packets with a destination address to the destination address by bypassing other network nodes.
8. The mobile radio communication network as claimed in claim 4 , wherein the control network node contains the filter function and the routing function coupled to one another such that the data packets filtered out by the filter function on the basis of a destination address respectively indicated in the data packets are forwarded to the respective destination address by the routing function by bypassing other network nodes.