MOBILE GATEWAY SELECTION USING A DIRECT CONNECTION BETWEEN A PCRF NODE AND A MOBILITY MANAGEMENT NODE
First Claim
1. A method for mobile gateway, GW, selection, the method being performed by a Mobility Management Entity, MME, node or an S4 Serving General Packet Radio Service, GPRS, Support Node, S4-SGSN, comprising the steps of:
- transmitting a request message for a Packet Data Network, PDN, Gateway, GW, Internet Protocol, IP, address to be used for establishing a session for a first user equipment, UE, to a Policy and Charging Rules Function, PCRF, node through a direct MME/S4-SGSN-PCRF interface; and
receiving a confirmation message comprising a PDN GW IP address to be used for establishing the session from the PCRF node through the direct MME/S4-SGSN-PCRF interface.
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Accused Products
Abstract
There is provided mobile gateway selection performed by a PCRF node in communication with an MME node or an S4-SGSN. The mobile gateway selection is based on a direct MME/S4-SGSN-PCRF interface. A request message for a Packet Data Network Gateway Internet Protocol address to be used for establishing a session for a first user equipment is transmitted from the MME/S4-SGSN to a Policy and Charging Rules Function node through a direct MME/S4-SGSN-PCRF interface. The Policy and Charging Rules Function node determines a PDN GW IP address to be used for establishing the session based on policies for the first user equipment and transmits the PDN GW IP address through the direct MME/S4-SGSN-PCRF interface to the MME/S4-SGSN.
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Citations
18 Claims
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1. A method for mobile gateway, GW, selection, the method being performed by a Mobility Management Entity, MME, node or an S4 Serving General Packet Radio Service, GPRS, Support Node, S4-SGSN, comprising the steps of:
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transmitting a request message for a Packet Data Network, PDN, Gateway, GW, Internet Protocol, IP, address to be used for establishing a session for a first user equipment, UE, to a Policy and Charging Rules Function, PCRF, node through a direct MME/S4-SGSN-PCRF interface; and receiving a confirmation message comprising a PDN GW IP address to be used for establishing the session from the PCRF node through the direct MME/S4-SGSN-PCRF interface. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for mobile gateway, GW, selection, the method being performed by a Policy and Charging Rules Function, PCRF, node, comprising the steps of:
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receiving a request message for a Packet Data Network, PDN, Gateway, GW, Internet Protocol, IP, address to be used for establishing a session for a first user equipment, UE, from a Mobility Management Entity, MME, node or an S4 Serving General Packet Radio Service, GPRS, Support Node, S4-SGSN, through a direct MME/S4-SGSN-PCRF interface; determining a PDN GW IP address to be used for establishing the session based on policies for the first UE; and transmitting the PDN GW IP address to be used for establishing the session to said MME node or said S4-SGSN through the direct MME/S4-SGSN-PCRF interface. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A Mobility Management Entity, MME, node or an S4 Serving General Packet Radio Service, GPRS, Support Node, S4-SGSN, for mobile gateway, GW, selection, comprising:
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an input/output, I/O, interface arranged to transmit a request message for a Packet Data Network, PDN, Gateway, GW, Internet Protocol, IP, address to be used for establishing a session for a first user equipment, UE, to a Policy and Charging Rules Function, PCRF, node through a direct MME/S4-SGSN-PCRF interface; and the I/O interface further being arranged to receive a confirmation message comprising a PDN GW IP address to be used for establishing the session from the PCRF node through the direct MME/S4-SGSN-PCRF interface.
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15. A Policy and Charging Rules Function, PCRF, node for mobile gateway, GW, selection, comprising:
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an input/output, I/O, interface arranged to receive a request message for a Packet Data Network, PDN, Gateway, GW, Internet Protocol, IP, address to be used for establishing a session for a first user equipment, UE, from a Mobility Management Entity, MME, node or an S4 Serving General Packet Radio Service, GPRS, Support Node, S4-SGSN, through a direct MME/S4-SGSN-PCRF interface; a processing unit arranged to determine a PDN GW IP address to be used for establishing the session based on policies for the first UE; and the I/O interface further being arranged to transmit the PDN GW IP address to be used for establishing the session to said MME node or said S4-SGSN through the direct MME/S4-SGSN-PCRF interface.
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16. A computer program for mobile gateway, GW, selection, the computer program comprising computer program code which, when run on a Mobility Management Entity, MME, node or an S4 Serving General Packet Radio Service, GPRS, Support Node, S4-SGSN, causes the MME node or S4-SGSN node to:
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transmit a request message for a Packet Data Network, PDN, Gateway, GW, Internet Protocol, IP, address to be used for establishing a session for a first user equipment, UE, to a Policy and Charging Rules Function, PCRF, node through a direct MME/S4-SGSN-PCRF interface; and receive a confirmation message comprising a PDN GW IP address to be used for establishing the session from the PCRF node through the direct MME/S4-SGSN-PCRF interface. - View Dependent Claims (18)
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17. A computer program for mobile gateway, GW, selection, the computer program comprising computer program code which, when run on a Policy and Charging Rules Function, PCRF, node (2), causes the PCRF node to:
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receive a request message for a Packet Data Network, PDN, Gateway, GW, Internet Protocol, IP, address to be used for establishing a session for a first user equipment, UE, from a Mobility Management Entity, MME, node or an S4 Serving General Packet Radio Service, GPRS, Support Node, S4-SGSN, through a direct MME/S4-SGSN-PCRF interface; determining a PDN GW IP address to be used for establishing the session based on policies for the first UE; and transmitting the PDN GW IP address to be used for establishing the session to said MME node or said S4-SGSN through the direct MME/S4-SGSN-PCRF interface.
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Specification