Anatel debates 6 GHz spectrum allocation for Wi-Fi and mobile networks

Anatel has held its first of two public hearings to debate the allocation of the 6 GHz spectrum band in Brazil. The discussions revealed a divide between regional internet service providers (ISPs) and mobile telecommunications companies.

ISPs are advocating for the entire 1,200 MHz band (5,925 MHz to 7,125 MHz) to remain available for unlicensed use, such as Wi-Fi 6E and Wi-Fi 7. They argue that maintaining the full band is essential to provide the ultra-wide 320 MHz channels required for high-speed connectivity in dense environments. They warned that splitting the band would limit the capacity of new wireless technologies.

In contrast, mobile operators are requesting that the upper portion of the 6 GHz band be prioritized for mobile networks (IMT) to expand 5G capacity and prepare for 6G. They are seeking legal certainty and clear rules to encourage long-term infrastructure investment.

To address the technical challenges of coexistence, Abrint has commissioned Inatel to study how Wi-Fi and mobile networks might operate within the same band without harmful interference. However, Anatel representatives noted that current tests have not yet demonstrated satisfactory coexistence when both technologies operate on the same channel, maintaining a proposal that keeps the technologies separate.