Systems and methods for virtualized wireless base station networking solutions

Patent metadata

Field	Value
Publication number	US-12494945-B2
Application number	US-202218056602-A
Country	US
Kind code	B2
Filing date	Nov 17, 2022
Priority date	Nov 17, 2021
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

Systems and methods for virtualized wireless base station networking solutions are provided. In one embodiment, a controller for a telecommunications wireless base station comprises: one or more physical network interfaces; at least one processor programed to execute code on the controller: one or more virtualized entities for one or more virtual network functions of the base station, wherein a first virtual network function comprises a plurality of functional applications that each includes a respective network interface for connecting to a data network; a virtual network interface dedicated stack associated with each network interface, wherein a respective virtual network interface dedicated stack defines for each network interface a virtual media access control (VMAC) address, a virtual network interface (VF), a virtual local area network (VLAN), and a logical subnetwork internet protocol (IP) address. Each functional applications is bound to the physical network interfaces by their respective virtual network interface dedicated stack.

First claim

What is claimed is:

1 . A controller for a telecommunications wireless base station, the controller comprising:
one or more physical network interfaces; and at least one processor programmed to execute code on the controller to implement:
one or more virtual network functions, each virtual network function in the one or more virtual network functions implementing a virtualized entity of a telecommunications base station, wherein at least a first virtual network function in the one or more virtual network functions comprises a plurality of functional applications that each includes a respective network interface for connecting to a data network; and
a virtual network interface dedicated stack associated with each of the respective network interfaces, wherein a respective virtual network interface dedicated stack defines for each of the plurality of network interfaces a virtual media access control (VMAC) address, a virtual network interface (VF), a virtual local area network (VLAN), and a logical subnetwork internet protocol (IP) address;
wherein each of the plurality of functional applications are bound to the one or more physical network interfaces by their respective virtual network interface dedicated stack.

2 . The controller of claim 1 , wherein a first functional application of the first virtual network function is coupled to a first physical network interface by a first virtual network interface dedicated stack, and
a second functional application of the first virtual network function is coupled to a second physical network interface by a second virtual network interface dedicated stack.

3 . The controller of claim 1 , wherein a first functional application of the first virtual network function exchanges data traffic with a virtual network function of a second controller via the VLAN defined by the respective virtual network interface dedicated stack.

4 . The controller of claim 1 , wherein a first functional application of the first virtual network function exchanges IPsec secured data traffic with a virtual network function of a second controller via the VLAN defined by the respective virtual network interface dedicated stack.

5 . The controller of claim 1 , wherein a first functional application of the first virtual network function exchanges data traffic with a second functional application of a second virtual network function via the VLAN defined by the respective virtual network interface dedicated stack.

6 . The controller of claim 1 , wherein the first virtual network function comprises either:
a gNodeB Central Unit User Plane (CU-UP) virtual network function; a gNodeB Central Unit Control Plane (CU-CP) virtual network function; or a gNodeB Distributed Unit (DU) virtual network function.

7 . The controller of claim 1 , wherein the first virtual network function implements a subset of functional applications for either:
a gNodeB Central Unit User Plane (CU-UP) virtual network function; a gNodeB Central Unit Control Plane (CU-CP) virtual network function; or a gNodeB Distributed Unit (DU) virtual network function.

8 . The controller of claim 1 , wherein the first virtual network functions comprises an IPsec virtual gateway (VGW).

9 . The controller of claim 1 , wherein the at least one processor uniquely associates each virtual network interface with a namespace that defines parameters for a VLAN ID and the logical subnetwork internet protocol (IP) address based on a naming policy for virtual network function entities orchestrated on the controller.

10 . The controller of claim 9 , further comprising a second virtual network function comprising the plurality of functional applications that each includes the respective network interface for connecting to the data network;
wherein the first virtual network function comprises a virtual network function for a first gNodeB wireless base station and the second virtual network functions comprises a virtual network function for a second gNodeB wireless base station.

11 . The controller of claim 10 , wherein the at least one processor uniquely associates each virtual network interface for the first virtual network function for the first gNodeB wireless base station with a first namespace and associates each virtual network interface for the second virtual network function for the second gNodeB wireless base station with a second namespace.

12 . An edge cloud system for virtualized wireless base stations, the system comprising:
a plurality of controllers, each controller comprising at least one processor and one or more physical network interfaces; at least one network, wherein the plurality of controllers are configured to communicate with each other over the one or more physical network interfaces via a data network; and a first controller configured to execute code to implement a first virtualized network function for a first virtualized entity of a first virtualized wireless base station and implement a second virtualized network function for a second virtualized entity of a second virtualized wireless base station; wherein the first virtual network function and the second virtual network function each comprise a plurality of functional applications that each includes a respective network interface for connecting to the data network; wherein the first controller is configured to execute code to implement a respective virtual network interface dedicated stack for each of the respective network interfaces, wherein a respective virtual network interface dedicated stack defines for each of the plurality of network interfaces a virtual media access control (VMAC) address, a virtual network interface (VF), a virtual local area network (VLAN), and a logical subnetwork internet protocol (IP) address; wherein each of the plurality of functional applications are bound to the one or more physical network interfaces by their respective virtual network interface dedicated stack.

13 . The system of claim 12 , wherein the first controller uniquely associates each virtual network interface with a namespace that defines parameters for a VLAN ID and the logical subnetwork internet protocol (IP) address based on a naming policy for virtual network function entities orchestrated on the controller.

14 . The system of claim 13 , wherein the first uniquely associates each virtual network interface for the first virtual network function with a first namespace for the first wireless base station and associates each virtual network interface for the second virtual network function with a second namespace for the second wireless base station.

15 . The system of claim 12 , wherein a first functional application of the first virtual network function exchanges data traffic with a virtual network function of a second controller via the VLAN defined by the respective virtual network interface dedicated stack.

16 . The system of claim 12 , wherein a first functional application of the first virtual network function exchanges data traffic with a functional application of a second virtual network function via the VLAN defined by the respective virtual network interface dedicated stack.

17 . The system of claim 12 , wherein the first virtual network function comprises either:
a gNodeB Central Unit User Plane (CU-UP) virtual network function; a gNodeB Central Unit Control Plane (CU-CP) virtual network function; or a gNodeB Distributed Unit (DU) virtual network function.

18 . The system of claim 12 , wherein the first virtual network function comprises implements a subset of func

Assignees

• Outdoor Wireless Networks LLC

Inventors

• Dharwadkar Sriram
• Sambandan Devaraj
• Ramakrishnan Shanthakumar
• Salahuddeen Irfaan Ahamed
• Ni James J

Classifications

• H04W76/12

  Setup of transport tunnels · CPC title

• H04L2101/35

  containing special prefixes · CPC title

• H04L61/4511

  using domain name system [DNS] · CPC title

• H04L61/5038

  for local use, e.g. in LAN or USB networks, or in a controller area network [CAN] · CPC title

• H04L2101/622

  Layer-2 addresses, e.g. medium access control [MAC] addresses · CPC title