Releasing Access For Full 6G Band

The Ministry of Information and communications Technologies and the National Spectrum Agency has issued the Resolution 737 of November 18, 2022 which frees the entire 6 GHz Band for unlicensed use in Colombia. This release is exclusively for implementation of wireless access system in indoor spaces and with low power.

This means that households, Internet service providers (ISPs) will be able to increase their capacity and offer better service by making more space for the flow of information. The hope is that the opening of the 6 GHz Band will encourage innovation as capacities and speeds will be higher to meet with future demand for data, content, and applications from end users throughout the nations.

Low Power Indoor applications known as LPI corresponds with everyday access points and user devices in wireless networks that operate in closed spaces. Great examples of this will be homes, offices, schools, libraries, shopping malls, airports, transportation terminals, hotels, restaurants, and many more enclosed spaces. The used of Wi-Fi in the ranges of 5925-7125 MHz of the 6GHz band will allow availability of up to 7 channels of 160 MHz or 3 channels of 320 MHz interconnecting millions of devices in closed environments, satisfying the growing demand for high speed for end-user access.

For those places were a lack of coverage from mobile service networks (IMT), Wi-Fi technology will be essential for end users to connect to fixed broadband networks in indoor environments as a practical alternative for service.

The requirement of 1200 MHz under the modality of free use in the 6 GHz band indoors and with low power, along with the necessary technical conditions to avoid generating interference to primary services, generating benefits for end users by improving quality of connectivity in closed sites, higher speeds, lower latencies, and no extra incurring costs for the use of the spectrum. LPI will have a very low probability of causing harmful interference on fixed microwave radio links and fixed satellite radio links which establishes the operating conditions under the modality of free use in the frequency range of 5925 - 7125 MHz to mitigate any possible interference between radiocommunication systems.

For frequency ranges of 5925 - 7125 MHz, here are the technical and operational conditions. The P.I.R.E. maximum should not exceed 30 dBm for access devices and 24 dBm for client devices. Furthermore, the spectral density of P.I.R.E must not exceed 5 dBm for access devices and -1 dBm for client devices, in any 1 MHz band. The spectral density of P.I.R.E. it should be attenuated 20 dB at a distance of 1 MHz from the end of the channel, 28 dB at a distance of one channel of separation from the center of the channel, and 40 dB at a distance of 1.5 channels of separation from the of the channel. Emissions outside the 5925 - 7125 MHz band should be limited to a spectral density of P.I.R.E maximum -27 dBm/MHz. This is to only be used for indoor devices. The use of devices located on oil rigs, motor vehicles, trains, boats, aircrafts, or outside is not allowed with the exception of aircrafts flown above 10,000 feet. The operation of equipment intended to control or communicated with unmanned aerial vehicles is not allowed.

Access devices must be powered directly from the commercial electrical power network, the use of batteries is prohibited, and their structure must not support outdoor use. Devices must only work with an integrated antenna in their structure.

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