- The “low” bands already assigned to 2G/3G/4G could be reused for 5G.
- The 3.5 GHz band is the first 5G band offering a coverage/capacity compromise.
- The 26 GHz “pioneer 5G” band will mainly be used for “hot spots”.
- Other high bands will be studied during the 2019 world radiocommunications conference.
The role of the ANFR
The ANFR is conducting European and international negotiations to identify the 5G frequency bands. In Europe, two new bands have already been selected for 5G.
In 2015, these negotiations made it possible to harmonise the 3.5 GHz band as a 5G band and to define future candidate bands for 5G such as the 26 GHz band which should be the subject of global harmonisation in 2019.
At the national level, the ANFR is preparing for the arrival of 5G by freeing up the frequency bands assigned to 5G but occupied by other users.
Finally, The ANFR supports the first pilot 5G deploymentsin the 3.5 GHz mobile phone operator band and works with all the players to characterise 5G networks in terms of exposure of the general public
Technological evolution towards smart antennas
Current mobile networks use radio equipment known as “macro cells” deployed to provide cover in the different territories. The antennas constantly transmit signals in a given direction (beam).
5G will be deployed using “macro” sites similarly to the current operator networks, but should also be built around the deployment of small antennas installed in urban furniture.
To achieve the announced performances (speed multiplied by 10 and latency divided by 10 and multiple connections), 5G will in particular be based on a new generation of antennas that direct the signals to the devices that need them. Coupled with high frequency bands, the use of these antennas will make it possible to greatly increase speeds.