Home General What you need to know about 5G DAS

What you need to know about 5G DAS


While using a mobile device such as a smartphone or iPad, there’s a high likelihood that you have faced situations where the signal strength was weak or poor. This issue can occur regardless of the specific building or location you are in. Fortunately, there are several solutions out there to help with this ranging from quick fixes like changing your phone settings to larger-scale ones like deploying a 5G DAS. The latter is far more permanent and is particularly great because 5G is already superior to its predecessors according to UCtel. And thus can support much more.

Let’s check the information below to help you know everything about such a solution, including what they are. As well, we’ll learn about their deployment and benefits. With that settled, it’s time to explore the topic at hand!

Starting with the basic details

Distribution Antenna Systems are signal-enhancing units made of external antennas, multiple internal ones as well as an amplifier between them. The signal is received by the external antenna, amplified, and then sent throughout the designated space via the internal antennas. This is an oversimplification, as the tech exists in two forms which include:

  • Active systems: which receive, and amplify signals, which can be turned into optical signals. These are then sent to the internal antennas via fibre cable
  • Passive systems: which receive subpar signals, from cell sites, and rebroadcast them to various internal antennas fitted all over the building according to a strategy

The former is more expensive and covers half a million square feet, and above. Scaling the latter to half a million square feet in coverage is possible, although a fifth of that is ideal. As such, they’re more affordable. However, they do require the signal to be quite strong, unlike their counterpart.

Speaking of signals, the systems get them from multiple sources, and these determine your in-building coverage, as well as the capacity, before deployment. Below is a look at these sources:

The phone masts

BTS signal sources wirelessly connect dedicated, carrier-installed fibre optics to devices. Large businesses, such as airports, with many simultaneous users generally connect to various base stations that are compatible with multiple carriers to allow this.

This originator is notable for its great performance, as well as similar coverage, and capacity. However, a lengthy deployment time, the costliness, vast tech-based expertise, and detailed laying out of both dead and hand-off zones, aren’t as ideal.

Small cells

Typically gNB (gNodeB), connects to the core network of an operator via the internet or dedicated fibre. They’re more affordable than the above alternative, and don’t take as long to deploy, all while creating a 5G wireless signal of high quality, and catering to hundreds of users in corporate-style buildings. That said, they aren’t easy to upgrade, require a network provided by a carrier, and also need careful mapping for hand-off zones.

The off-air source

These receive, enhance, and send out already existing signals, without any additions made to capacity. They are the cheapest of the sources, which is reflected in their quick deployment time, and yet they’re compatible with various carriers, although managing them may not be easy. However, their lack of input carrier-wise is a problem, which is only compounded when you realize that performance drops when the existing signal is bad.

The accompanying upside

These systems, irrespective of type, would work depending on your requirements, because of the 5G aspect. A 5G Distributed Antenna System (DAS) irrespective of type will come with several significant benefits. These include the following:

Improved signal quality

The advancements of 5G technology compared to its predecessor is substantial. 5G tech provides significantly higher data transfer speeds than, for example, 4G predecessor. It is perfect for our times and modern generation requirements in which activities like video conferencing and streaming are run-of-the-mill.

A 5G DAS achieves such speeds because of the inverse relationship between bandwidth, and frequency. In other words, the short frequencies of sub-300 GHz that come with 5G systems increase the bandwidth, making things faster.

Smaller delays

Latency is described as the delay experienced between the point a signal is sent, and when it’s received., and on 5G, it’s 200 times less than its direct predecessor. This means that a lot more can be achieved, this especially applies to the IoT (Internet of Things) spaces as well as the following:

  • Gaming
  • Remote surgeries
  • Autonomous areas such as self-driving vehicles

The RF issue

Radio frequency interference is caused by several things which include poor weather, the presence of nearby buildings, and Wi-Fi, to name a few. With these 5G systems, the great interference caused by these blockages isn’t nearly as great as it can be, and in fact, coverage in places affected the most by signal issues is enhanced.

Better overall time with the network

The improved speed and capacity of 5G is such that everything that could be done by what came earlier, is done better. This, as you would imagine, is greatly beneficial to those using it, either for recreation, research, utility, or business.

Upgrading: deployment difficulties

As convenient as the systems in question can be, a few things may hinder you from acquiring them, or having enhancements made to existing ones. These hindrances are as follows:

  • The lack of existing infrastructure that can support the necessary frequencies
  • The inability to allow higher data rates
  • The limitations of incorporating 5G into existing systems, which often require easier full-on replacement
  • The large amounts of energy consumed
  • The effect of RF interference on 5G, due to its shorter ranges

The above are major considerations before any action. As such, trusted, reputable, experts are needed to help with matters. With 5G adoption set to keep increasing in the next few years, and already in use, using the associated DASes is a no-brainer it seems. DAS is a logical and straightforward choice.

Final thoughts

That said, as the above has shown, the deployment of a 5G or 4G DAS is no walk in the park and comes with a host of considerations. Everything from the type of system to the source of the signals, and even the possibility for an upgrade, or deployment have to be thought of among other things. It is for this reason that having the help of experts well-versed in tech is needed to avoid unnecessary issues.


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