System and method for multiple PDP contexts with a single PDP address at a GGSN
OwnerBollapragada Manoharinventor
Life of this patent
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Abstract
A General Packet Radio Service (GPRS) system includes a mapping module (218) at an SGSN (Serving GPRS Support Node) and a port assignment module (220) at a GGSN (Gateway GPRS Support Node). The port assignment module (220) can assign each IP address to a plurality of I/O ports (such as TCP ports). The mapping module (218) maintains a mapping between IP address and I/O port for a given connection. In operation, all available TCP ports are assigned a given IP address until the ports available are exhausted. A new IP address is then assigned to the same ports.
Claims16
A GPRS telecommunications system, comprising:
- a Serving GPRS support node (SGSN) including a mapping module and adapted to interface to a mobile station;
- and
- a gateway GPRS support node (GGSN) including a port assignment module and adapted to couple to a packet network;
- wherein said port assignment module is adapted to sequentially assign a plurality of IP addresses to same TCP ports and said mapping module is adapted to maintain a mapping between a particular port, an IP address, and a mobile station during a connection between said mobile station and said packet network.
A GPRS telecommunications system, comprising:
- a Serving GPRS support node (SGSN) adapted to interface to a plurality of mobile stations;
- a gateway GPRS support node (GGSN) adapted to couple to a packet network;
- and
- means for assigning an IP address to a plurality of TCP ports such that a plurality of said mobile stations can simultaneously communicate with said packet network using said IP address over different ones of said TCP ports.
A telecommunications method, comprising:
- assigning multiple IP addresses to a same port in a GGSN;
- and
- transmitting packets from multiple mobile stations via said port.
A method, comprising:
- providing a Serving GPRS support node (SGSN) including a mapping module and adapted to interface to a mobile station;
- and
- providing a gateway GPRS support node (GGSN) including a port assignment module and adapted to couple to a packet network;
- wherein said port assignment module is adapted to sequentially assign a plurality of IP addresses to same TCP ports and said mapping module is adapted to maintain a mapping between a particular port, an IP address, and a mobile station during a connection between said mobile station and said packet network.
Dependencies are inferred from the claim text.