Granted Patent B2

US 12,563,471 · App. 17/838,597 · Granted Feb 24, 2026

Inventors: Amit Ghadge (Pune, IN); Vivek Pise (Pune, IN); Mukesh Singhal (Pune, IN); Praneet Chivate (Nahua, NH)

Assignee: Parallel Wireless, Inc.

H04W40/02H04L45/74

Abstract

Claims (31)

1 . A method, comprising:

keeping, by a Distributed Unit (DU)/Centralized Unit (CU)-User Plane (UP), a list of local switch enabled subscribers;

receiving an uplink data packet for a local switch enabled subscriber from a source device;

comparing, by the DU/CU-UP, if a destination Internet Protocol (IP) address for the uplink data packet matches with any of IP addresses in a list of local switch enabled subscriber destination device IP addresses; and

when the destination IP address matches, then switching by the DU/CU-UP, traffic and sending the uplink data packet as a downlink traffic towards the destination device.

2 . The method of claim 1 wherein the DU and the CU provide support for a 4G/5G Mobile network.

3 . The method of claim 1 wherein the both the source device and the destination device are local switch enabled devices.

4 . The method of claim 1 wherein when the traffic does not match local switch criteria, the traffic is sent via normal path.

5 . A method, comprising:

making a Distributed Unit (DU) terminate an interface towards a core;

controlling and deciding, by a Centralized Unit (CU)-Control Plane (CP), whether to have a Centralized Unit (CU)-User Plane (UP) or not in a data path for the DU or a particular subscriber in that DU;

provisioning, by the CU-CP, the DU with a core peer endpoint for an endpoint; and

following, by the DU, an instruction as per the CU-CP whether to send data traffic to the CU-UP or to the core peer endpoint.

6 . The method of claim 5 wherein the DU and the CU provide support for a 4G/5G Mobile network.

7 . The method of claim 5 , wherein the interface is a S1-U/N3 interface.

8 . The method of claim 5 , wherein the endpoint is a S1-U/N3 endpoint.

9 . A system for providing a 4G-5G Open RAN User Plane Path comprising:

at least one Distributed Unit (DU); and

at least one Centralized Unit (CU) in communication with the at least one DU,

wherein the CU/DU includes a user plane keeping a list of local switch enabled subscribers;

wherein the CU/DU receives an uplink data packet for a local switch enabled subscriber from a source device and compare if a destination Internet Protocol (IP) address of the uplink data packet matches with any of a list of IP addresses for any of the list of local switch enabled subscribers; and

wherein when the destination IP address matches, then the DU/CU-UP switches traffic and sends the data packet as a downlink traffic towards the destination device.

10 . The system of claim 9 wherein the DU and the CU provide support for a 4G/5G Mobile network.

11 . The system of claim 9 wherein the both the source device and the destination device are local switch enabled devices.

12 . The system of claim 9 wherein when the traffic does not match local switch criteria, the traffic is sent via a normal path.

13 . The system of claim 9 wherein the DU terminate an interface towards a core.

14 . The system of claim 9 wherein the CU-CP control and decide whether to have a Centralized Unit (CU)-User Plane (UP) or not in a data path for the DU or a particular subscriber in that DU.

15 . The system of claim 14 wherein the CU-CP, provisions the DU with a core peer endpoint for an endpoint.

16 . The system of claim 15 wherein the DU follows an instruction as per the CU-CP whether to send data traffic to CU-UP or to a core peer endpoint.

17 . The system of claim 16 wherein the interface is a S1-U/N3 interface.

18 . The system of claim 16 wherein the endpoint is a S1-U/N3 endpoint.

Assignments (1)

Continuity (2)

References Cited (28)