While waiting for the 5G, or the fifth generation standard, many telephone companies have launched a new standard, which stands between the “old” 4G and the new one: it is the 4.5G.
In fact, the 5G network was experimentally activated in the city of Turin, thanks to the collaboration between Tim, Ericsson, and Qualcomm, which conducted the experiment in the Tim laboratories in Turin thanks to a smartphone with a Snapdragon X50 chipset, which supports the 5G standard.
What is the 4.5G connection
The 4.5G speed, also known as LTE Advanced Pro or LTE-A PRO, is a standard that represents the protocol for mobile telephony (smartphones, but also tablets, which use a data SIM) as a 5G precursor, which should lead to a speed of tens of hundreds of Megabits per second data transmission for thousands of users.
But let’s start from the beginning: what is LTE?
Born as a new generation for mobile broadband systems , following UMTS, also defined with 3G . When we hear about 4G , we are actually talking about the LTEprotocol , which the International Telecommunications Union (ITU) has decided to classify as 4G to avoid further confusion in the various marketing policies.
The specifications for the LTE access network (Long Term Evolution) were agreed at the end of 2008, establishing that the maximum download speed was 326.4 Mbit / s and the upload speed was 86.4 Mbit / s .
Just as LTE sought to provide higher mobile data transfer rates than legacy 3G, LTE-A aimed to improve on LTE, in addition to meeting the ITU requirements for 4G. LTE-A Pro will do the same and prepare for 5G . Essentially, we can think of LTE as 3.5Gor pre-4G, LTE-A as 4G and LTE-A Pro as 4.5G or pre-5G.
LTE-A Pro aims to significantly increase data speed and available bandwidth for mobile communications. The main purpose is also to bring all mobile devices and not to a single connection standard , optimizing capacity, performance, functionality and efficiency, as well as further reducing latency (delay in response time), for provide a better user experience. The LTE platform will also improve for the supply of new services to new markets as we move towards IoT with 5G
The key attributes that will define this standard are:
- Data rate above 3Gbps ;
- 640 MHz operator bandwidth;
- Latency: 2 ms .
To make a comparison, with those who currently use 4G:
|maximum download speed||3 Gbps||1 Gbps|
|maximum upload speed||500 Mbit / s||86.4 Mbits / s|
|bandwidth||640 MHz||100 MHz|
|latency||2 ms||10 ms|
Many of these features, including the methodology used to use this standard, are those that then make it a 5G precursor, which should guarantee all the aforementioned characteristics.
In other words, this means that coverage is also guaranteed in areas of great flow of connected devices (linked to bandwidth, which is increased), providing greater stability to calls and navigation of the user and a shorter response time of the content to be downloaded (linked to the latency, which has decreased).
The telephone operators that have currently released offers to use the 4.5G network service are different: first, Vodafone. which has allowed all users who already have a mobile offer with Internet and 4G browsing, to surf the Giga Network 4.5G for free.
As for Wind / Tre, the Super Network, just check the coverage through the site and see if the municipality is covered or not and then request activation, as well as for Tim.
Obviously, not all devices are enabled for this type of connection; some of the models that allow their use are:
- Samsung Galaxy S8;
- Samsung Galaxy S8 +;
- Samsung Galaxy Note 8;
- Samsung Galaxy Note 9;
- Samsung Galaxy S9;
- Samsung Galaxy S9 +;
- LG V30;
- LG G7;
- HUAWEI Mate 10 Pro;
- HUAWEI P20;
- HUAWEI P20 Pro;
- HUAWEI Mate 20 Pro;
- ASUS Zenfone 4 Pro;
- Sony Xperia ™ XZ Premium;
- Asus ROG.
This means that to ensure that the 4.5G network can be used, it is necessary to have one of the devices mentioned (or possibly others that support it), a SIM of at least 128K and be under 4.5G coverage.