ANRITSU - Open RAN Overview and Testing Aspects. White Paper / Webinar.
Open RAN Overview and Testing Aspects
The Open Radio Access Network (Open RAN) is evolving wireless network architectures, encouraging lower costs, improved efficiencies, and seamless upgrades. This white paper describes the technical details and features of Open RAN, and new testing approach to reap its benefits.
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Anritsu Introduces O-RAN Radio Unit Test Solution
Innovative Solution Provides Efficient O-RAN Fronthaul Tests to Ensure Compatibility Between Multi-Vendor Equipment in O-RAN Access Networks
Allen, TX – March 20, 2023?– Anritsu Company introduces the?ORAN Test Platform MX772000PC and O-RAN Distributed Unit (O-DU) Emulator Platform Software MX773000PC solution?for efficient evaluation of O-RAN Radio Units (O-RUs). The integrated solution creates a flexible and efficient test environment to ensure O-RU performance is compliant with O-RAN and 3GPP standards.
Automated O-RU testing is achieved with the MX772000PC software, so engineers can simply create necessary test sequences using an intuitive graphical user interface (GUI). The MX773000PC emulates O-DU operation for conformance testing considering real field scenario of O-RU synchronization, by evaluating S-Plane Timing Error Injection testing on the O-RU based on O-RAN.WG4.CONF specifications.
The software supports the O-RAN Fronthaul specifications and assumes a reduction in clock quality due to synchronization drift caused by multi-vendor compatibility issues, multi-stage switch connections, and transmission equipment. Easy creation and editing of M-Plane messages for connection to the O-RU is supported to reduce errors when creating M-Plane message sequences. Configuration of the CUSM-Plane can be done using a single application, as well.
Anritsu has developed these new dedicated software packages to support efficient O-RAN Fronthaul tests to ensure compatibility between multi-vendor equipment typically designed into O-RAN networks. In addition to the software, the solution features an O-RAN Radio Test Solution that serves as an O-DU emulator on a COTS Dell server using an accelerator card and the Radio Communication Test Station MT8000A base station emulator that are controlled by a PC.
Anritsu Corporation Introduces O-RAN Radio Unit Test Solution
Efficient O-RAN Radio Unit Evaluation for Deploying Open RAN
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Anritsu Corporation introduces the ORAN Test Platform MX772000PC and O-DU Emulator Platform Software MX773000PC solution for efficient evaluation of the O-RAN Radio Unit (O-RU*1).
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The MX772000PC software automates O-RU testing. The MX773000PC emulates O-DU*2 operation to connect the O-RU and execute O-RAN.WG4.CONF*3 tests meeting the O-RAN Fronthaul*4 specifications.
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Development Background
Conventional Radio Access Networks (RAN) are configured using communications equipment from a single vendor. However, introduction of Open RAN*5 interfaces between equipment is currently in progress to facilitate construction and operation of flexible expandable RAN at lower costs.
Widespread deployment of Open RAN faces issues with testing compatibility between equipment supplied by different vendors. Anritsu has developed these new software tools supporting efficient O-RAN Fronthaul tests to solve these issues and help deploy expandable and flexible Open Radio Access Networks.
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Product Outline and Features
■ MX772000PC
O-RU Test Automation Software
l?Automates O-RU test in combination with Radio Communication Test Station MT8000A with installed Base Station Test Suite for NR sub-6 GHz MX800046A and MX773000PC.
l?Creates test sequences efficiently by selecting items from GUI.
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■ MX773000PC
Software for Emulating O-DU and Testing O-RU
l?Supports O-RAN.WG4.CONF S-Plane Timing Error Injection tests, assuming drop in clock quality due to synchronization drift caused by multi-vendor compatibility issues, multi-stage switch connections, transmission equipment, etc.
l?Supports easy creation and editing of M-Plane*6 messages required for connection O-RU to reduce mistakes when creating M-Plane message sequences
l?Sets CUSM-Plane*7 using one application.
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[Technical Terms]
*1 O-RU
Abbreviation for O-RAN Radio Unit complying with O-RAN fronthaul specifications
*2 O-DU
Abbreviation for O-RAN Distributed Unit complying with O-RAN mid-haul and fronthaul specifications and supporting RLC, MAC, and High-PHY wireless UE functions
*3 O-RAN.WG4.CONF
O-RAN Fronthaul Conformance Test specification defined by O-RAN ALLIANCE WG4 Open Fronthaul Interfaces Workgroup
*4 O-RAN Fronthaul
Open I/F between Radio Unit and Distributed Unit standardized by O-RAN ALLIANCE
*5 Open RAN
Term for Radio Access Network configuration using open interface specifications for all communications equipment vendors
*6 M-Plane
Abbreviation for Management Plane, I/F between O-RU and O-DU supporting non-Realtime management; starts and sets O-RU at O-RU test.
*7 CUSM-Plane
Abbreviation for C-Plane, U-Plane, S-Plane, and M-Plane; C-Plane describes group of protocol signals to control network, U-Plane describes group of protocols for sending/receiving user data, and S-Plane describes protocol for synchronizing between network equipment.
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Anritsu Webinar:?O-RAN: Evolution, Market Trends, Use Cases + Testing
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webinar to learn from?#Anritsu's?Sundara Venkatesh "Venky"?about key aspects of?#OpenRAN?technology and the benefits it brings businesses, as well as the importance of testing for successful deployment.
Watch it here.
Download the webinar slides here.