SOLUTION BRIEF

TABLE OF CONTENTS
Solution Overview ................................................... 1
Open RAN ................................................................ 1
Key Components ..................................................... 2
Hardware Solution Features ................................... 3
Summary ................................................................. 3
Further Information ................................................ 3

Solution Overview
Rakuten Symphony is a recognized leader in providing solutions forthe mobile industry. By reimagining telecom, Rakuten Symphonymakes it possible to launch and operate advanced mobile services ina fraction of the time and cost of conventional approaches, with nocompromise to network quality or security.

Creating a new solution requires expertise in a number of domains.
For example, understanding the networking, storage, and computing
requirements of a telecommunication (telco) offering requires enormous expertise. Leveraging Supermicro servers for core andOpen RAN, Rakuten has industrialized a transformational, highly automated, cloud-native network solution based on their"Mobile as a Software™" paradigm. With Rakuten Symphony utilizing Supermicro servers, customers get a proven, modern, andtested solution for the most demanding telco operations. Supermicro provides commercial servers with pre-validated solutions
for Open RAN that will fit into different network deployment environments. Supermicro is a leading editor in the O-RAN
ALLIANCE's White Box Working Group, defining the industry's reference architectures.
Table of Contents .................................................... 1

TABLE OF CONTENTS
Contents

OpenRAN
Solution
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Telco networks have, in the past, been closed and proprietary solutions. Whether the hardware or software was proprietary
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and closed, this system was not optimal. Individual components could not be replaced to use the latest technologies, which
HardwareSolution Features
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and ledto more expensivesolutions. With Open RAN (Open Radio Access Network), the RAN
defined.
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© 2023 Copyright Super Micro Computer, Inc. All rights reservedMarch, 2023

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functionality is disaggregated using open standards. An O-RAN network enables service providers to use components frommany vendors, encouraging innovations and lowering costs. In addition, by using industry-standard servers, Open RAN canquickly borrow innovations from other parts of the IT world and apply them to the wireless network edge, thus increasing
RAN's performance and flexibility and bringing many applications from the cloud to the edge.

Key Components
An Open RAN solution for a telco environment consists of Distributed Units (DU) and Centralized Units (CU) for computepurposes. The DUs and CU perform different tasks and can be specified as different types of optimized servers.
•Distributed Unit – The Open Distributed Unit (O-DU) sits close to, or even at, the Radio Unit (RU), which broadcasts
the mobile network signal and processes data transmission between the RU and the CU. Hardware used for the O-DU
task often is commercial off-the-shelf (COTS) edge servers that can function as a baseband processing unit to handle
high PHY layer, MAC, and RLC layer with network function virtualization (NFV) or Containers.

•Central Unit – The Open Centralized Unit (O-CU) sits between the core network and a series of Distributed Units. TheCentralized Unit collects the relevant data from the Distributed Units and sends that data to the core data center.

The overall architecture of a 5G Telco network is described below. In RAN, the DU, CU, MEC/RIC, and edge servers are all basedon white box servers. Based on the location of the deployments (Cell Site, Central Offices, Local Data Center) or the amount oftraffic to be supported (# of Radio Units, # of Subscribers), Supermicro has a variety of servers to fit into different scenarios. We
highlight some of the servers below as examples.

© 2023 Copyright Super Micro Computer, Inc. All rights reservedMarch, 2023

2Hardware Solution Features
Supermicro servers have been selected, tested, and available as CU or DU systems as a key component of the Rakuten
Symphony solution.
•O-CU / SYS-220U-TNR: The powerful and flexible 2U Ultra system is deployed as a centralized unit, providing highcompute performance with dual 3rd Gen Intel® Xeon® Scalable processors and 100 GbE connectivity. Default
configuration: 2x Intel Ethernet Network Adapter E810 and 1x Intel Ethernet Network Adapter XXV710, Dual Intel Xeon
Platinum 8358P w/ high flexibility and slot count, NUMA balanced architecture, full SW integration/management
feature support.

•O-DU / SYS-210TP-HPTR: The 2U, 4-node SuperEdge system functions as a distributed unit in deployments whereperformance and low latency are essential. Each node can be configured with a 3rd Gen Intel Xeon Scalable processor
and a range of add-on cards. Default configuration: Intel® Xeon® Gold 6338N with 32 cores, 1x ACC100, and 1x Intel
Ethernet Network Adapter XXV710 single socket w/ high density, ultra-low latency in packet processing.

•O-DU / SYS-210P-FRDN6T: This ultra short-depth (299 mm / 17.2") system is able to deliver high-density performancein space-constrained areas as a distributed unit. Default configuration: Intel® Xeon® Gold 6338N with 32 cores, 1x
ACC100 and 1x Intel® Ethernet Network Adapter XXV710, single socket short depth, ultra-low latency in packet
processing.

Rakuten Symphony will start offering 4th Gen Intel Xeon Scalable processors-based products on the same footprint server
listed above. To meet some of the Operator's deployment requirements, specific servers such as SYS-111E-FDWTR have gone
through NEBs level 3 certification.

SummarySupermicro and Rakuten together are creating a complete solution for O-RAN operators. With the combined state-of-the-art
software, servers, and networking, new and highly performant RAN can be implemented in a fraction of the time compared toa piecemeal selection and integration effort.

Further Information
To learn more about Supermicro’s X13 Products, please visit: www.supermicro.com/x13
O-CU SYS-221H-TNR (https://www.supermicro.com/en/products/system/Hyper/2U/SYS-221H-TNR?mlg=0)••

O-CU SYS-221HE-FTNRD (https://www.supermicro.com/en/products/system/iot/2u/sys-221he-ftnrd)•O-DU SYS-111E-FDWTR (https://www.supermicro.com/en/products/system/iot/1u/sys-111e-fdwtr)•O-DU SYS-211E-FRDN2T (https://www.supermicro.com/en/products/system/iot/2u/sys-211e-frdn2t)•

O-DU SYS-211SE-31D (https://www.supermicro.com/en/products/system/iot/2u/sys-211e-31d© 2023 Copyright Super Micro Computer, Inc. All rights reservedMarch, 2023

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