Scope and Impact

Resolution 000028, issued by the National Spectrum Agency (ANE), modifies the regulatory framework for radio frequency management in Colombia. The primary focus is the flexibilization of the 900 MHz band, removing its exclusive reservation for International Mobile Telecommunications (IMT). This change is intended to optimize spectrum use, promote digital connectivity in vulnerable or remote areas, and allow for a wider variety of radiocommunication services, including fixed and mobile applications.

Permitted Radio Bands and Technical Specifications

The regulation defines specific band plans and technical parameters for mobile and fixed services, as well as updates to the National Frequency Allocation Table (CNABF).

900 MHz Band Plan for Mobile and Fixed Services

Up-link Frequency Range: 896 – 915 MHz

Down-link Frequency Range: 941 – 960 MHz

Permitted Bandwidths: 1.4, 3, 5, 10, and 15 MHz

Operation Mode: FDD (Frequency Division Duplex)

Updated IMT Operation Bands

The following bands are designated for the operation of International Mobile Telecommunications (IMT):

698 to 806 MHz

824 to 849 MHz and 869 to 894 MHz

1710 to 1755 MHz and 2110 to 2155 MHz

1755 to 1780 MHz and 2155 to 2180 MHz

1850 to 1910 MHz and 1930 to 1990 MHz

2500 to 2690 MHz

3300 to 3700 MHz

Bands Reserved for Future IMT Operation

452.5 to 457.5 MHz and 462.5 to 467.5 MHz

1427 to 1518 MHz

2300 to 2400 MHz

24.25 to 27.5 GHz

Allocation for the 902-928 MHz Segment

902 - 905 MHz: Fixed, Terrestrial Mobile, and Amateur services.

905 - 908 MHz: Fixed, Terrestrial Mobile, Amateur, and Radiolocating services.

908 - 915 MHz: Fixed, Terrestrial Mobile, and Amateur services.

915 - 928 MHz: Fixed, Terrestrial Mobile (except aeronautical mobile), Amateur, and Radiolocating services.

Restrictions and Interference Mitigation

The regulation outlines specific requirements to ensure coexistence between different technologies:

Coexistence with 850 MHz: Spectrum assignees in the 900 MHz band must implement all necessary protection measures to minimize harmful interference with radiocommunication systems operating in the adjacent 850 MHz band (predominantly 2G and 3G technologies).

Free-use Devices: New services in the 900 MHz band must coexist with the massive deployment of free-use (unlicensed) devices operating in the 915-928 MHz segment, particularly in urban areas.

Regulatory Modifications

This resolution specifically modifies the following components of Resolution ANE 105 of 2020 ("By means of which the radio spectrum in Colombia is planned and attributed"):

Article 1.2.10: Updated to adopt the new band plan for the 900 MHz band (Table 15A).

Article 1.7.1: Updated to reflect the current frequency bands for IMT operation.

Article 1.7.2: Updated regarding bands reserved for future IMT operation.

National Note CLM 21 (Article 5.1.1): Modified to align the 900 MHz allocation with international Region 2 standards and remove the exclusive IMT reservation for the 902-928 MHz range.