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5G was expected to propel cellular data usage onto a new growth trajectory. However, this is not taking place at all. 

Following the launch of 5G services, operators reported very high initial 5G data usage rates. This was primarily caused by the heaviest LTE users upgrading to 5G handsets and services. This migration simultaneously caused a decline in the average traffic generated by users with LTE handsets. The impact of the early adopters was subsequently diluted as less-intensive users upgrade to 5G handsets and services. Then, organic growth in usage started to mask some of the effects of the migration. Over time, though, we can look at whether the total growth in usage across all handset types is sustained. South Korea is a good example to look to. In South Korea, there was an initial surge in data usage the year 5G was introduced, but this effect was short-lived. Average data use by subscribers with 5G handsets fell from its high starting point, became flat and then started to rise once more but only at a low single-digit rate. Average usage by LTE handset owners has been steadily decreasing. Overall, average data traffic growth across all handset types has slowed for 3 years in a row.

Figure 2: Cellular network data traffic growth, South Korea, December 2018–December 2022

Source: Analysys Mason

Operators are currently using FWA to fill the gap between capacity and demand in their 5G networks, but the revenue per megabyte that they generate from FWA services is much lower than that for mobile cellular data services. Relying on FWA traffic to fill 5G networks will not satisfy mobile operators’ investors in the long run. Some operators will also need to limit FWA availability because without the careful management of FWA traffic on 5G networks, there could be negative impacts on the quality of service for non-FWA users.

Only new applications and services will unlock future annual growth rates of 30% or more. However, it is unlikely that the types of services that could significantly accelerate cellular data traffic growth will have a substantial near-term impact.

• Higher definition video and TV services could potentially drive a new wave of data usage. Device capability is an obstacle to this possibility, as most mobile handsets are either not capable of displaying high-definition content or the screen size is too small for users to see the difference. A surge in the use of tablets to view TV on mobile networks could change this – although tablet users tend to use Wi-Fi as their primary means of connectivity. A few mobile operators have introduced mobile cellular data packages that include subscriptions to on-demand TV. This has the potential to drive up data traffic, but there are limits to the amount of time people can spend watching TV when they are away from their homes. Lack of time is likely to prevent excessive mobile TV consumption away from the home. Within the home – even when they have unlimited mobile data packages – users don’t tend to switch to their mobile networks. They typically continue to use devices connected to their home fixed broadband and Wi-Fi for extended TV viewing.
• Connected cars have been regarded as a potential source of high-volume data traffic. But this will likely not happen soon. Most new cars equipped with a mobile connection still only have LTE capabilities, and most of those are only used for telematics. Some original equipment manufacturers (OEMs), as well as operators, have introduced service packages to encourage in-car use of services (based on embedded and aftermarket connections). Even still, usage volumes have been low even in luxury vehicles. Other potential drivers of traffic are C-V2X systems for intelligent transport networks and autonomous vehicles. But despite numerous tests and trials, C-V2X infrastructures are years away, and fully autonomous vehicles still have technical and regulatory hurdles to overcome before they are deployed in meaningful numbers.
• Metaverse services – including AR and VR, and services using haptics – have the potential to generate a high volume of data traffic. In the next 4 or 5 years, the number of users with AR and VR headsets is expected to reach 300–400 million , but faster take-up will be restricted by the cost of end-user equipment, and most image processing will be done using equipment within the home. Eventually, metaverse use cases could involve vast numbers of customers, with cloud processing of fully immersive environments and services requiring very low latency and very high bandwidth.
• However, most of the usage will take place indoors where a combination of fibre and Wi-Fi seems much more suited to the service requirements.

The volume of cellular data traffic is increasing in absolute terms, but the annual change measured in percentage terms is going to be much lower than what is has been historically. Analysys Mason’s new report Wireless network data traffic: worldwide trends and forecasts 2022–2028 evaluates the prospects for cellular data growth over the coming 5 years, with global cellular data traffic nearly tripling worldwide to 2.7ZB in 2028, with a limited metaverse uptick at the end of the period.