Is open RAN technology a good fit for private mobile networks? And what do network operators think? A new Heavy Reading open RAN survey delivers insight.

Gabriel Brown, Principal Analyst, Heavy Reading

May 17, 2023

3 Min Read
Operator Survey: Open RAN for private networks

What role can open RAN technology play in private mobile network systems?

Enterprises will not integrate and consume open RAN directly. They clearly prefer pre-integrated private mobile network solutions supported by a managed service provider.

Nevertheless, there are arguments that open RAN technology can be used to create private network systems that better serve enterprise needs.

These arguments generally fall into three themes:

  1. Modular, programmable and designed for purpose. Private networks have a differentiated feature set, relative to public networks, that open RAN can be configured to deliver. By nature of its modularity, the technology can be used to create solutions optimized for diverse use cases. Modularity also means R&D investment in public network open RAN solutions can be applied to the private network market.

  2. Open RAN enables enterprise technology providers. Using open RAN, companies with expertise in enterprise — for example, networking vendors, cloud providers, OT and IT suppliers or systems integrators — can extend into private mobile networks. This capability opens the playing field to a broader supplier base that brings critical enterprise- and sector-specific knowledge.

  3. Simple operations over a long lifecycle. Private networks can be simple and low cost (and therefore a low risk entry point for open RAN), and they can be highly demanding in performance terms (e.g., to support Industrial Internet of Things [IoT] over time-sensitive Ethernet). In each case, the O-RAN Alliance's SMO Framework and RIC bring innovations that can enable low touch, automated operation.

A range of companies can use open RAN to create pre-integrated RAN systems for private mobile networks. This includes network operators, which are major suppliers of private solutions, typically using a managed services model.

A question in the new Heavy Reading 2023 Open RAN Operator Survey seeks to understand the role operators think open RAN will play in their private network strategy. (To download a copy of the survey, click here.)

The survey results, shown in the figure below, reveal that operators see an important role for open RAN in private 5G networks. But their position is nuanced.

Close to a third of respondents (31%) expect open RAN to be "a critical part of our private 5G offer." This is a strong endorsement given the two-year timeframe of the question. But it is short of a majority, which indicates operators have reservations about how well the technology and use case are currently matched.

The largest respondent group is the 40% that says, "open RAN will play an important role." This view holds that open RAN can be part of a private network design — even if it is not "critical" — and keeps the door open to using the technology in the future for parts of the system. It is essentially a pragmatic outlook.

Does your organization expect to use open RAN technology in private 5G enterprise networks within the next two years?

Figure 1: (Source: Heavy Reading) (Source: Heavy Reading)

Given the arguments outlined above, should we have expected a stronger response for the "critical" option from the operator survey respondents? No, not really. The specificity of the question — referring to 5G (the private network ecosystem is primarily 4G today) — and the two-year timeframe perhaps caused respondents to be somewhat cautious.

Most operators already have vendor-integrated solutions in their private mobile network portfolio. To switch to open RAN technology, operators must be confident that it will deliver the performance and reliability their customers need and that it will come with low cost operations and lifecycle management. This underlines that although the technology is promising, there is still work for the ecosystem to do.

Additionally, operator private network strategies are likely to include a mix of technology solutions. Heavy Reading also expects operators to act as channel partners for diverse private mobile network suppliers (e.g., hyperscalers and enterprise vendors), and this is another way open RAN can penetrate the market and become part of operators' private network offers.

This blog is sponsored by Qualcomm.

About the Author(s)

Gabriel Brown

Principal Analyst, Heavy Reading

Gabriel leads mobile network research for Heavy Reading. His coverage includes system architecture, RAN, core, and service-layer platforms. Key research topics include 5G, open RAN, mobile core, and the application of cloud technologies to wireless networking.

Gabriel has more than 20 years’ experience as a mobile network analyst. Prior to joining Heavy Reading, he was chief analyst for Light Reading’s Insider research service; before that, he was editor of IP Wireline and Wireless Week at London's Euromoney Institutional Investor.

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