Latin America. Dynamic spectrum sharing (DSS) allows mobile network operators to switch the use of radio spectrum between LTE (4G) and 5G connectivity. This scheme has allowed the arrival of 5G to cities in Brazil and more locations in Puerto Rico during 2020.
According to 5G Americas, DSS is enabled as a technology solution on carrier networks for users with compatible mobile equipment to use 4G or 5G if available in their area. A hallmark of this technology is that operators do not require a prior and rigid division of channels within a spectrum band; DSS allows the same spectrum to be used alternating by time and according to local needs, such as local presence of 5G connections.
This scheme allows efficient initial deployments of 5G, since in addition to the pre-existing spectrum, other elements of the network are used, such as antennas and radio equipment.
Dynamic spectrum sharing can be a factor in accelerating the arrival of 5G in countries that have allocated more frequencies for mobile broadband recently and as the availability of 5G devices grows, from smartphones to equipment for fixed-wireless service. This reinforces the need to allocate internationally harmonized bands in Latin America for mobile services, such as 2.5 GHz and 700 MHz.
While the first steps of 5G in the region may occur by sharing radio spectrum from LTE networks, it is necessary for governments to plan the allocation of bands that will allow the technological maturation of 5G, such as 3.5 GHz and in the future bands over 24 GHz.
For 5G Americas' infographic on the subject, click here.
