UK mobile networks made an agreement with the UK government in 2021 to phase out 2G and 3G mobile services and for this to be completed by 2033, however the operators in that agreement (Vodaphone, EE, O2, and Three) are free to choose when to exit these services from their networks.
The “G” stands for “generation” for the mobile data technology. The jump from 2G to 3G can be compared with the difference between dial up and broadband for those who are old enough to remember! 3G came out in 2003 and 4G emerged in the UK in 2012, so 4G means you can do everything you could do on 3G, but faster – akin to the difference between the older style broadband and fiber optic as 4G is around 5 times faster owing to the re-design of pre-existing networks.
Just to upset everyone who has now grasped the difference, there are instances when 3G is faster than 4G and this is simply down to the infrastructure available with different companies having different access – so it is always worth checking coverage before committing to contracts. Don’t worry too much though as most modern smart phones and devices will switch between the available 3G and 4G networks probably without the operator noticing.
The the shortage of computer chips may delay the networks capability to phase out 3G as the expectation was that newer handsets would be capable of 4G connectivity, fewer new handsets will mean users unable to access the networks and the pandemic has proved that digital connectivity is now a utility, not a luxury.
For those with fiber optic to their organizations, this will provide a faster solution than any available 3G or 4G – so using devices to take advantage of this may be advantageous.
5G has already emerged and could offer a feasible solution to fiber optic (if access requires the physical and expensive laying of a cable). Demand for connectivity appears to be insatiable and although 5G is already being trialed in some areas of the UK, it is an ambitious project – especially when you consider 4G is only available 53% of the time. To explain how much faster 5G is, 4G will allow a download of a HD movie in about an hour, in comparison the 5G network can download that same data content in 10 seconds but a device capable of connectivity will be required.
MiFi solutions could be of interest to mobile workers as it can support up to 10 devices (Avia uses one for a satellite workshop to the main premises) portable and relatively easy to set up when you consider physical laying of cables can be costly and relying on a smart phone can develop unwanted heat in an expensive piece of equipment in comparison to the more simplistic MiFi box.
What is concerning for the automotive industry is the number of devices in use day to day that rely on WiFi or a 3G network that may be taken for granted. Connected equipment, scan tools, surveillance cameras, alarm systems, the list goes on – replacing costly garage equipment for lack of connectivity will be a frustration for many.
To prepare for this switch off, consider what equipment is in use and how it accesses the internet. This is also a good opportunity for a security check of systems. CAT 6 cabling for fixed equipment is a great idea, particularly for those who are into data heavy diagnostics and Delphi as not only does it offer much faster access if your provision to the building is up to it, but it is also highly secure.
Consider who has access to the WiFi passcode, although not entirely dramatic for guests to take advantage of a connection it can pose significant risk. Having proper guest access through the router will allow much greater security for the rest of the systems used by the organization that will be in contact with personal information.
Taking these steps now will also be important for operators in the aftermarket to demonstrate they can access remote data communication, secure telematics, and perhaps maintenance as a service business models.
Author : Hayley Pells MSc CAE FIMI