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Top 5GC and mobile network predictions for 2021

Contain your excitement …..5G is coming (again)!

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Amr Alashaal, Regional Vice President - Middle East at A10 Networks
Amr Alashaal, Regional Vice President – Middle East at A10 Networks

By: Amr Alashaal, Regional Vice President – Middle East at A10 Networks

 Contain your excitement …..5G is coming (again)!

Wait….wasnot 5G launched over two years ago?

Top 5GC and mobile network predictions for 2021

Well, yes. For those not familiar with 5G technology nuances, 5GC (core or standalone) takes 5G deployment to the next level. It replaces the 4G packet core with a new, cloud-native core using containers and following 3GPP specifications (release 15). This is somewhat separate from the market-by-market launch that most operators publicize, and the activity is less visible to the casual subscriber.

We recently sponsored a 5G security survey with Heavy Reading to understand the extent of mobile operator 5G core deployment. It was a global survey of 115 service providers that included mobile operators and fixed broadband providers. We asked several questions about the timing and extent of 5G core deployment and adoption and where the functions A10 Networks provides will fit in.

So, given that research, what do I see for 2021?

Over Half of Mobile Operators will have Launched 5GC (standalone) by the End of 2021

Most mobile operators that have launched 5G have chosen what’s called a “non-standalone” implementation. That is a hybrid of 4G and 5G that allows mobile operators to offer much of the 5G capabilities to their subscribers while still leveraging existing investment in their 4G packet core. Operators are eager to take advantage of the benefits of 5GC (standalone) – greater service agility and lower costs. The survey revealed that operators are committed to 5GC (SA or standalone) implementation, with 93 per cent of mobile operators implementing within a three-year window and investing in multiple 5G security options.

 AHalf, a Billion Mobile Subscribers Globally, will be Using 5G by EOY 2021

Mobile operators also see rapid adoption of 5G over the next three years by subscribers as 5G deployment accelerates. Most operators said that within five years, at least 25 per cent of their traffic would be carried via 5G – with 40 per cent of operators predicting that most of their traffic would be carried by 5G. This is consistent with the recent Ericsson Mobility Report that forecasts 56 per cent of total mobile data traffic will be 5G by 2026.

That’s a significant leap from today where almost half of operators report they have no traffic on 5G core at all. For 2021, 9 per cent of operators say that most of their traffic will be 5Gwith 70 per cent predicting less than 50 per cent will be 5G.

 Three-quarters of Mobile Operators will have Whittled Down their 3G Traffic to 25% or Less

It’s tough for mobile operators to get rid of old technology. 3G still exists in most mobile networks despite rapid 5G deployment. This is a combination of subscribers that won’t give up their older handsets, specific geographic areas, such as rural areas, that have legacy equipment and regulatory and industry practices that require a lengthy process for “sunsetting” older technologies. In North America, AT&T shutdown of 3G is expected in 2022; Verizon in 2021.

For example, today, only 13 per cent of mobile operators surveyed have managed to eliminate the support of 3G. By 2025, most operators (60 per cent) said that they would no longer support 3G.  That means that by 2025, 40 per cent of operators will still carry 3G traffic. This also increases concerns around 5G security, since older technologies have multiple security vulnerabilities that will still be present in these multi-generational networks.

In North America, 2G will Finally be Gone – not so in Europe

By the end of 2021, all major mobile operators will have shut down their 2G networks. In Europe, however, the shutdown has been complicated by using 2G in smart meters and eCall modems in cars that initiate a call to send information, such as the accident’s location, to emergency services.

Mobile Operators will Build More Relationships with Cloud Providers for Mobile Edge Compute (MEC) Services

According to a BPI report commissioned by A10 Networks, nearly all mobile operators state that mobile edge compute (MEC) is a vital part of their 5G deployment plans. Most are actively deploying or will deploy within the next year or so. IDC forecasts 50 per cent of all new infrastructure deployments (enterprise and the service provider) will be at the edge by 2023. I believe that mobile service providers will also jump on the advantages of mobile edge compute, but take a more measured, strategic approach to their use of MEC, at least in the near term.

By 2025, we see most mobile operators will have deployed 5G (standalone) combined with MEC and will direct up to 25 per cent of their traffic through these nodes. Operators will also use strategic partners for their enterprise customers that want the lower latency that a mobile edge computes service provides.

 In 2021, DDoS Detection and Mitigation will Become the Top Security Investment Priority for MEC networks

It’s already going in that direction now. DDoS attacks are getting more frequent, intense, and smaller in size, making them harder to detect. The average attack size is only 12 Gbps, with most attacks being under 5 Gbps. A10’s  The State of DDoS Weapons Report, Q2 2020 shows 10M available DDoS weapons.

The Heavy Reading 5G Security Report shows that small DDoS attacks are the primary reason for investment priority for MEC. And with MEC capacity as low as 600 Mbps, mobile service providers and their new 5G enterprise customers are at substantial risk for these common DDoS attacks.

Those are the predictions for 2021. Overall, despite the pandemic, we believe that demand for 5G services will be strong and that subscribers will continue to find more value and use cases from the growing 5G capability.

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