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US 2024/0195734 A1Published application
Communication system, gateway, controller and computer-readable storage medium
AssigneeSoftBank Corp.
InventorSatoru MATSUSHIMA
Life of this patent
Estimating the term…
Abstract
Provided is a communication system comprising: a controller; an SR gateway, wherein the SR gateway includes: an advertisement unit which advertises, when path information of the IP network and an SID of a VRF are received from the VRF, an SR policy including the information of VRF to an ED of an NLRI and an SID of the SR gateway to the controller, and the controller includes: a matching unit which matches the VRF and the SR gateway; an identification unit which identifies, by referring to a PFCP session, a UPF and a gNB corresponding to the IP network to which the VRF is connected; and an advertisement unit which advertises path information of the UPF and an SID of the SR gateway to a VRF corresponding to the gNB identified by the identification unit.
Claims20
A communication system comprising:
- a controller;
- and
- an SR gateway which converts a packet compliant with a GTP-U received from a mobile network into a packet compliant with an SRv6, wherein the SR gateway includes:
- a VRF generating unit which generates:
- a plurality of gNBVRFs, each of which is a VRF corresponding to each of a plurality of gNBs;
- and a plurality of DNVRFs, each of which is a VRF corresponding to each of a plurality of DNs;
- and
- a message advertisement unit which advertises a message to the controller, the message including information of the plurality of gNBVRFs and the plurality of DNVRFs generated by the VRF generating unit;
- and
- the controller includes:
- an association information generating unit which generates association information associating the plurality of gNBVRFs with the plurality of DNVRFs based on the message;
- an information acquiring unit which acquires PFCP session information notified when a UE is attached;
- a path information generating unit which generates, based on the PFCP session information and the association information, path information with respect to a destination address of a UPF corresponding to the UE, the path information including an SID of a DNVRF corresponding to the UE;
- and
- a path information advertisement unit which advertises the path information to the SR gateway.
12 more elements
A gateway comprising:
- a converter unit which converts a packet compliant with a GTP-U received from a mobile network into a packet compliant with an SRv6;
- a VRF generating unit which generates:
- a plurality of gNBVRFs, each of which is a VRF corresponding to each of a plurality of gNBs;
- and a plurality of DNVRFs, each of which is a VRF corresponding to each of a plurality of DNs;
- and
- a message advertisement unit which advertises a message to a controller, the message including information of the plurality of gNBVRFs and the plurality of DNVRFs generated by the VRF generating unit.
3 more elements
A non-transitory computer-readable storage medium having a program stored thereon, the program causes a computer to function as a gateway comprising:
- a converter unit which converts a packet compliant with a GTP-U received from a mobile network into a packet compliant with an SRv6;
- a VRF generating unit which generates:
- a plurality of gNBVRFs, each of which is a VRF corresponding to each of a plurality of gNBs;
- and a plurality of DNVRFs, each of which is a VRF corresponding to each of a plurality of DNs;
- and
- a message advertisement unit which advertises a message to a controller, the message including information of the plurality of gNBVRFs and the plurality of DNVRFs generated by the VRF generating unit.
3 more elements
A controller comprising:
- a message reception unit which receives a message including information of a plurality of gNBVRFs, each of which is a VRF corresponding to each of a plurality of gNBs, and a plurality of DNVRFs, each of which is a VRF corresponding to each of a plurality of DNs;
- an association information generating unit which generates association information for associating the plurality of gNBVRFs with the plurality of DNVRFs based on the message;
- an information acquiring unit which acquires PFCP session information notified when a UE is attached;
- a path information generating unit which generates, based on the PFCP session information and the association information, path information with respect to a destination address of a UPF corresponding to the UE, the path information including an SID of a DNVRF corresponding to the UE;
- and
- a path information advertisement unit which advertises the path information to a gateway.
3 more elements
A non-transitory computer-readable storage medium having a program stored thereon, the program causes a computer to function as a controller comprising:
- a message reception unit which receives a message including information of a plurality of gNBVRFs, each of which is a VRF corresponding to each of a plurality of gNBs, and a plurality of DNVRFs, each of which is a VRF corresponding to each of a plurality of DNs;
- an association information generating unit which generates association information for associating the plurality of gNBVRFs with the plurality of DNVRFs based on the message;
- an information acquiring unit which acquires PFCP session information notified when a UE is attached;
- a path information generating unit which generates, based on the PFCP session information and the association information, path information with respect to a destination address of a UPF corresponding to the UE, the path information including an SID of a DNVRF corresponding to the UE;
- and
- a path information advertisement unit which advertises the path information to a gateway.
3 more elements
A communication system comprising:
- a controller;
- an SR gateway which converts a packet compliant with a GTP-U received from a mobile network into a packet compliant with an SRv6, wherein the SR gateway includes:
- an advertisement unit which advertises, when path information of an IP network and an SID of a VRF are received from the VRF connected to the IP network, an SR policy including information of the VRF to an ED of an NLRI and an SID of the SR gateway to the controller, and
- the controller includes:
- a matching unit which matches the VRF with the SR gateway based on information advertised from the VRF or preset information of the VRF and information that is advertised by the advertisement unit;
- an identification unit which identifies, by referring to a PFCP session notified when a UE is attached, a UPF and a gNB corresponding to the IP network to which the VRF is connected;
- and
- an advertisement unit which advertises path information of the UPF and an SID of the SR gateway to a VRF corresponding to the gNB identified by the identification unit.
5 more elements
Dependencies are inferred from the claim text.