Local breakout of user plan function at enterprise 5G radio access network
AssigneeCisco Technology, Inc.
InventorsShailender Potharaju, Arun G. Khanna
Life of this patent
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Abstract
The disclosure provides a method for providing an enterprise gNB for connection to a 5G packet core network. The method includes provisioning the enterprise gNB. The enterprise gNB hosts a local user plane function (L-UPF). The method also includes configuring the 5G packet core network comprising a session management function (SMF) to select the local user plane function to service user equipment (UE) connected to the enterprise gNB.
Claims17
A method for providing an enterprise gNB for connection to a 5G packet core network, the method comprising:
- provisioning the enterprise gNB, wherein the enterprise gNB hosts a local user plane function (L-UPF);
- configuring the 5G packet core network comprising a session management function (SMF) to select the local user plane function to service a user equipment (UE) connected to the enterprise gNB;
- and
- requesting an IP address for the UE, by the L-UPF at the enterprise gNB, from an enterprise DHCP server to allocate the IP address;
- sending, by the L-UPF at the enterprise gNB, a session establishment response containing the IP address for the UE to the SMF;
- and
- broadcasting, by the L-UPF at the enterprise gNB, a Gratuitous Address Resolution Protocol (GARP) message informing devices in a subnet supported by the enterprise DHCP server of a binding of the IP address for the UE with the MAC address of the L-UPF.
A system comprising:
- a storage configured to store instructions;
- a processor configured to execute the instructions and cause the processor to:
- provision the enterprise gNB, wherein the enterprise gNB hosts a local user plane function (L-UPF),
- configure the 5G packet core network comprising a session management function (SMF) to select the local user plane function to service a user equipment (UE) connected to the enterprise gNB;
- and
- request an IP address for the UE, by the L-UPF at the enterprise gNB, from an enterprise DHCP server to allocate the IP address;
- send, by the L-UPF at the enterprise gNB, a session establishment response containing the IP address for the UE to the SMF;
- and
- broadcast, by the L-UPF at the enterprise gNB, a Gratuitous Address Resolution Protocol (GARP) message informing devices in a sublet supported by the enterprise DHCP server of a binding of the IP address for the UE with the MAC address of the L-UPF.
A non-transitory computer readable medium comprising instructions, the instructions, when executed by a computing system, cause the computing system to:
- provision the enterprise gNB, wherein the enterprise gNB hosts a local user plane function (L-UPF);
- configure the 5G packet core network comprising a session management function (SMF) to select the local user plane function to service a user equipment (UE) connected to the enterprise gNB;
- and
- request an IP address for the UE, by the L-UPF at the enterprise gNB, from an enterprise DHCP server to allocate the IP address;
- send, by the L-UPF at the enterprise gNB, a session establishment response containing the IP address for the UL to the SMF;
- and
- broadcast, by the L-UPF at the enterprise gNB, a Gratuitous Address Resolution Protocol (GARP) message informing devices in a subnet supported by the enterprise DHCP server of a binding of the IP address for the UE with the MAC address of the L-UPF.
Dependencies are inferred from the claim text.