Managing multiple carriers of radio discovered by NGDU in O-RAN

Patent metadata

Field	Value
Publication number	US-12598046-B2
Application number	US-202318022694-A
Country	US
Kind code	B2
Filing date	Feb 8, 2023
Priority date	Dec 27, 2022
Publication date	Apr 7, 2026
Grant date	Apr 7, 2026

Abstract

Embodiments are directed to a NGDU for managing radio units in an O-RAN. The NGDU includes a RIM management controller, a plurality of DUs, at least two processing units includes multiple CPRI ports and a plurality of RUs connected to each of the at least two processing units through the plurality of CPRI ports. The RIM management controller includes a memory and a processor. The processor is configured to receive a DU port ID associated with the RU and determine a processing unit to which the at least one RU is connected based on the DU port ID. The processor is also configured to map the processing unit to a CPRI port in a DU port registry, determine the CPRI port connecting the RU to the NGDU based on the mapping and enable communication between the RU connected to the determined CPRI port and a corresponding DU over the ORAN.

First claim

We claim:

1 . A Next Generation Distributed Unit (NGDU) for managing radio units in an Open Radio Access Network (O-RAN), wherein the NGDU comprises:
a radio interface module (RIM) management controller comprising a Management Plane (M-plane) model; a plurality of Distributed Units (DUs) connected to the RIM management controller; at least two processing units connected to the RIM management controller, wherein each of the at least two processing units comprises a plurality of Common Public Radio Interface (CPRI) ports; a plurality of Radio Units (RUs) connected to each of the at least two processing units through the plurality of CPRI ports; and wherein the RIM management controller comprises:
a memory,
a processor coupled to the memory, and wherein the processor is configured to: receive at least one DU port ID associated with the at least one RU of the plurality of RUs discovered at the NGDU, determine a processing unit of the at least two processing units to which the at least one RU is connected based on the received at least one DU port ID, map the determined processing unit to a CPRI port of the plurality of CPRI ports in a DU port registry, determine the CPRI port connecting the at least one RU to the NGDU based on the mapping, and enable communication between the at least one RU connected to the determined CPRI port and a corresponding at least one DU of the plurality of DUs over the O-RAN.

2 . The NGDU as claimed in claim 1 , wherein the DU port registry comprises a list of DU port ID supported by each of the at least two processing units with corresponding CPRI of the at least two processing units.

3 . The NGDU as claimed in claim 1 , wherein the at least one DU port ID associated with the at least one RU is received in at least one of an extended Antenna-Carrier (eAxC) identifier and a RTC PCID.

4 . The NGDU as claimed in claim 1 , wherein the processor is configured to enable the communication between the at least one RU and the corresponding at least one DU of the plurality of DUs based on the determined the CPRI port comprises:
determine an identity of the at least one RU of the plurality of RUs connected to the determined CPRI port; send the identity of the at least one RU connected to the determined CPRI port to the corresponding at least one DU, wherein the corresponding at least one DU is determined based on the mapping performed in the DU port registry; and enable control plane (C-Plane) data communication between the at least one RU and the at least one corresponding DU.

5 . The NGDU as claimed in claim 1 , wherein the processing unit is a field programmable gate array (FPGA) comprising the plurality of CPRI ports.

6 . A method for managing radio units in an Open Radio Access Network (O-RAN) by a Next Generation Distributed Unit (NGDU), wherein the method comprises:
receiving, by the NGDU, at least one Distributed Unit (DU) port ID associated with at least one Radio Unit (RU) of a plurality of RUs discovered at the NGDU, wherein the plurality of RUs is connected to at least two processing units through a plurality of Common Public Radio Interface (CPRI) ports; determining, by the NGDU, a processing unit of the at least two processing units to which the at least one RU is connected based on the received at least one DU port ID; mapping, by the NGDU, the determined processing unit to a CPRI port of the plurality of CPRI ports in a DU port registry; determining, by the NGDU, the CPRI port connecting the at least one RU to the NGDU based on the mapping; and enabling, by the NGDU, communication between the at least one RU connected to the determined CPRI port and a corresponding at least one DU of the plurality of DUs over the O-RAN.

7 . The method as claimed in claim 6 , wherein the DU port registry comprises a list of DU port ID supported by each of the at least two processing units with corresponding CPRI of the at least two processing units.

8 . The method as claimed in claim 6 , wherein the at least one DU port ID associated with the at least one RU is received in at least one of an extended Antenna-Carrier (eAxC) identifier and a RTC PCID.

9 . The method as claimed in claim 6 , wherein enabling, by the NGDU, communication between the at least one RU connected to the determined CPRI port and the corresponding at least one DU of the plurality of DUs over the O-RAN comprises:
determining, by the NGDU, an identity of the at least one RU of the plurality of RUs connected to the determined CPRI port; sending, by the NGDU, the identity of the at least one RU connected to the determined CPRI port to the corresponding at least one DU, wherein the corresponding at least one DU is determined based on the mapping performed in the DU port registry; and enabling, by the NGDU, control plane (C-Plane) data communication between the at least one RU and the at least one corresponding DU.

10 . The method as claimed in claim 6 , wherein the processing unit is a field programmable gate array (FPGA) comprising the plurality of CPRI ports.

Assignees

• Rakuten Symphony Inc

Inventors

• Jampala Naga Krishna Prasad
• Thotengara Sukesh
• Panigrahi Biswajit

Classifications

• H04L5/0023

  Time-frequency-space · CPC title

• H04W88/085

  Access point devices with remote components · CPC title

• H04L5/0094 Primary

  Indication of how sub-channels of the path are allocated · CPC title