Patent ID: 7907618

Claim:
A telecommunications system for providing a facility for communication internet packet data in accordance with a first internet protocol via a packet radio system network configured to communicate internet packet data in accordance with a second internet protocol, the system including at least one mobile user equipment and an inter-working unit, the mobile user equipment including a first internet protocol stack operable in accordance with the first internet protocol and a second internet protocol stack operable in accordance with a second internet protocol, the user equipment being configured to acquire an address according to the second internet protocol from the packet radio system network by sending an Activate Packet Data Protocol Context request message to the packet radio system network and receiving the second internet protocol address from the packet radio system, the inter-working unit is configured to perform an inter-working operation to represent internet packet data according to the first internet protocol as internet packet data according to the second internet protocol for communication via the packet radio system network and to represent internet packet data received from the packet radio system network in the form of internet packet data according to the second internet protocol as internet packet data according to the first internet protocol for communication to the user equipment, a corresponding inter-working unit being provided for reciprocal communication of internet packet data to and from the packet radio system network, wherein the inter-working unit acquires from the second internet protocol stack an address for representing the internet packet data according to the first internet protocol as internet packet data according to the second internet protocol, and a service-based policy translator (SBLP-T) configured to receive a first authorization information from a policy control function (PCF) and to translate the first authorization information according to the first internet protocol into second authorization information according to the second internet protocol for allowing communication of the internet packet data according to the second internet protocol via the packet radio system network.