Telco Cloud Deployment Tracker: Will vRAN eclipse pure open RAN?

Is vRAN good enough for now?

In this October 2022 update to STL Partners’ Telco Cloud Deployment Tracker, we present data and analysis on progress with deployments of vRAN and open RAN. It is fair to say that open RAN (virtualised AND disaggregated RAN) deployments have not happened at the pace that STL Partners and many others had forecast. In parallel, some very significant deployments and developments are occurring with vRAN (virtualised NOT disaggregated RAN). Is open RAN a networking ideal that is not yet, or never will be, deployed in its purest form?

In our Telco Cloud Deployment Tracker, we track deployments of three types of virtualised RAN:

  1. Open RAN / O-RAN: Open, disaggregated, virtualised / cloud-native, with baseband (BU) functions distributed between a Central Unit (CU: control plane functions) and Distributed Unit (DU: data plane functions)
  2. vRAN: Virtualised and distributed CU/DU, with open interfaces but implemented as an integrated, single-vendor platform
  3. Cloud RAN (C-RAN): Single-vendor, virtualised / centralised BU, or CU only, with proprietary / closed interfaces

Cloud RAN is the most limited form of virtualised RAN: it is based on porting part or all of the functionality of the legacy, appliance-based BU into a Virtual Machine (VM). vRAN and open RAN are much more significant, in both technology and business-model terms, breaking open all parts of the RAN to more competition and opportunities for innovation. They are also cloud-native functions (CNFs) rather than VM-based.

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2022 was meant to be the breakthrough year for open RAN: what happened?

  • Of the eight deployments of open RAN we were expecting to go live in 2022 (shown in the chart below), only three had done so by the time of writing.
  • Two of these were on the same network: Altiostar and Mavenir RAN platforms at DISH. The other was a converged Parallel Wireless 2G / 3G RAN deployment for Orange Central African Republic.
  • This is hardly the wave of 5G open RAN, macro-network roll-outs that the likes of Deutsche Telekom, Orange, Telefónica and Vodafone originally committed to for 2022. What has gone wrong?
  • Open RAN has come up against a number of thorny technological and operational challenges, which are well known to open RAN watchers:
    • integration challenges and costs
    • hardware performance and optimisation
    • immature ecosystem and unclear lines of accountability when things go wrong
    • unproven at scale, and absence of economies of scale
    • energy efficiency shortcomings
    • need to transform the operating model and processes
    • pressured 5G deployment and Huawei replacement timelines
    • absence of mature, open, horizontal telco cloud platforms supporting CNFs.
  • Over and above these factors, open RAN is arguably not essential for most of the 5G use cases it was expected to support.
  • This can be gauged by looking at some of the many open RAN trials that have not yet resulted in commercial deployments.

Global deployments of C-RAN, vRAN and open RAN, 2016 to 2023

Image shows global deployments of C-RAN, vRAN and open RAN, 2016 to 2023

Source: STL Partners

Previous telco cloud tracker releases and related research

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Delivering on SD-WAN: How to choose the right partners

SD-WAN has been made in North America…

65% of the North American operators featured in our Telco Cloud Tracker had deployed SD-WAN by the end of 2020

By contrast, 49% Asia-Pacific-based telcos had launched SD-WAN in their region by the same time and 44% European telcos were offering SD-WAN within Europe

As this market matures operators that are new to the market, or seeking to expand their services internationally, should choose an SD-WAN platform that will enable them to differentiate in their local markets or play to the telcos strengths.

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Challenges for telcos considering introducing SD-WAN

  1. Lack of relevant skills or experience: telcos worry about risks of ‘outsourcing’ a significant part of their WAN services, operations and infrastructure to SD-WAN vendor; and about integration with BSS / OSS etc.
    • Leading SD-WAN vendors collaborate closely with telcos to facilitate integration of their platforms with telcos’ networks and services
    • SD-WAN platforms provide management interfaces that are easy for non-technical staff to operate, and offer visibility into application workflows and network KPIs
  2. How to differentiate SD-WAN service: how to offer USPs for the local market and differentiate from competitors
    • Ensure you choose an SD-WAN platform that suits the key needs of your customer base (see competitive analysis in next section)
    • Differentiation can also be achieved through the services telcos and vendors offer around SD-WAN products, e.g. good local market and language support
  3. Absence of appropriate infrastructure, facilities and networks: e.g. lack of fixed broadband networks; insufficient SD-WAN platform support for LTE / 5G
    • Many SD-WAN platforms offer LTE and 5G connectivity mainly as a back-up to IP-MPLS and fixed broadband. But many telcos, especially in emerging markets, serve enterprise sites through FWA. How well do platforms support this?
    • Many SD-WAN platforms rely on redundant connectivity to cloud-based hubs: are these always available for telcos serving remote areas?
  4. Risk of cannibalising enterprise revenues and compromising ROI from existing products and assets: e.g. IP-MPLS; IP-VPN; dedicated Internet; etc.
    • Telcos can offer different classes of SD-WAN at different price points, inc. overlay-only services to clients that want them
    • SD-WAN now seen as a value-add to IP-MPLS, for which a premium can be charged: can be integrated with telcos’ managed services offerings

How to assess the different SD-WAN platforms?

How to assess SD-WAN paltforms

Source: STL Partners

The rest of this report includes a competitive analysis of key SD-WAN platform players and how they can enable telcos’ to meet enterprise customer needs and future proof their SD-WAN investments.

Table of Contents

  • Executive Summary
  • What are the challenges to introducing SD-WAN
  • Assessing different SD-WAN platforms
    • Cisco
    • VMWare
    • Fortinet
    • Versa Networks
    • Palo Alto
    • Silver Peak
    • Juniper
    • Aryaka
  • A framework for selecting and implementing SD-WAN platforms

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