The Independent Communications Authority South Africa (Icasa) has launched its strategy to offer additional wireless access by opening the radio spectrum across two innovation bands.
These frequency bands, ranging from 3.8GHz to 4.2GHz and 5.925GHz to 6.425GHz, will be “dynamic spectrum access.” Other licensed telecommunication service providers can use these frequencies if they do not interfere.
Icasa published a draft of dynamic spectrum access and opportunistic spectrum management regulations in the Government Gazette for public comment. The regulations represent the next step in an ongoing process to maximise the spectrum’s potential.
This new plan will allow concurrent access to previously unused spectrum, or “white spaces,” without disrupting primary users. Icasa believes the scheme will increase the spectrum’s availability, boost efficiency, and help raise connectivity in rural and poor areas. Allowing different operators to share this spectrum enables the project to improve service coverage in outlying areas.
Icasa mentioned that this phase is the second phase of its dynamic spectrum strategy, following the initial phase that initiated television white space utilisation in April 2021. This second phase targets the C and S frequency bands and aims to foster the development of new digital radio technologies, services, and applications.
As part of the preparation, Icasa conducted a series of simulations to determine the viability of the new spectrum-sharing model. The system was tested in urban and rural settings using advanced tools like the Spectrum Engineering Advanced Analysis Tool. The trials guided the final draft regulations.
The proposed rules show how electronic communication devices will access the new spectrum bands and how authorisation will be done. Icasa has worked closely with existing license holders and conducted mass-level simulations and pilot tests to ensure the plan will be effective without interfering with existing licensed users.
A key element of the plan is a geo-location database that enables dynamic spectrum allocation without interference, optimising the limited radio spectrum. Icasa councillor Thabisa Faye highlighted that the initiative enhances connectivity, meets growing wireless demand, and lowers barriers for small businesses, fostering a more inclusive and efficient wireless ecosystem.
