The Ministry of Communication and Digital (KOMDIGI) has allocated a radio frequency band of 1.4 GHz for broadband wireless access. Broadband wireless access (BWA) is a special technology for high-speed wireless internet access in a wide area. The allocation of a radio frequency band 1.4 GHz has been approved by issuing the technical regulation of KEPMEN KOMDIGI No. 204 year 2025 regarding technical standards for BWA telecommunication devices based on International Mobile Telecommunication-2020 (ITM-2020) system.
In this article we will discuss about new technical regulation for allocated radio frequency band 1.4 GHz for 5G technology-based (IMT-2020).
Background of opening radio frequency band 1.4 GHz
Currently, Indonesia is still facing a major challenge in improving fixed broadband services, where in terms of penetration and quality it has only reached 21.31% of households in Indonesia. To overcome this problem, KOMDIGI has prepared a policy to encourage massive and fast household internet access services at a lower cost.
Therefore, one of the regulator actions to support the need for cheap internet access is to prepare a radio frequency band 1.4 GHz for faster internet service. This frequency band will be specifically designated to serve household internet and can also support the education and health sectors.
Indonesia allocated radio frequency band 1.4 GHz
KOMDIGI’s commitment to creating affordable home internet access is realized by issuing technical regulation KEPMEN KOMDIGI No. 204 year 2025. This technical regulation is a referred technical standard for BWA telecommunication devices with 5G technology-based (IMT-2020) in Indonesia. BWA telecommunication devices will access data communications using radio frequency band 1.4 GHz with the implementation of 5G technology.
In this technical regulation, the requirements for 5G BWA telecommunication devices are divided into subscriber stations and base stations categories. Both subscriber stations and base stations operate in the radio frequency band 1.4 GHz.
Subscriber station is a customer premises equipment in the form of telecommunication devices used to access BWA services such as computers and smartphones. Meanwhile, base station is a transceiver device placed in a fixed location and used to transmitting and receiving wireless signals from user devices (subscriber stations).
Technical requirements for subscriber stations of radio frequency band 1.4 GHz
Before BWA telecommunication devices with 5G-based technology (IMT-2020) are entered and marketed in Indonesia, there are several technical requirements that need to be met. Fulfillment of these technical requirements is carried out through DJID certification process.
Power supply requirements
The 5G BWA subscriber station device must be powered by AC power, all parameter benchmarks must be met when using a power supply with AC voltage of 220 V +- 10% and frequency of 50 Hz +- 2%. Or when using an external power supply such as an AC/DC converter, the external power supply must not affect the capability of the 5G BWA subscriber station device.
Electrical safety requirements
Electrical safety assessment for 5G SS BWA telecommunication devices must meet the following two parameters of electrical safety requirements:
- Over voltage or electrical strength
- Leakage current or touch current
Electrical safety assessment for 5G SS BWA telecommunications devices is conducted using a risk-based approach, including energy source identification, language classification, and protection system effectiveness based on standards of IEC 62368-1 or IEC 60950-1.
Electromagnetic compatibility (EMC) requirements
5G SS BWA telecommunication devices must meet the EMC requirements for emission based on standards of IEC CISPR 32 or ETSI EN 301 489-1. The EMC parameters for emission that must be met by 5G SS BWA telecommunication devices are:
- EMC radiated emissions
- EMC conducted emissions at AC, DC power port, or AC/DC converter
- EMC conducted emissions at telecommunications network port
During the EMC testing process, each EMC emission parameter will be classified into class A and class B according to the standard of IEC CISPR 32.
Radio frequency requirements
The 5G SS BWA telecommunication devices must meet several radio frequency requirements. The radio frequency band allocated for 5G SS BWA is the frequency band of 1.4 GHz with the frequency range in the table below.
| Pita Frekuensi | Uplink (MHz) | Downlink (MHz) | Duplex Mode |
| n50 | 1432 MHz – 1517 MHz | TDD | |
The channel bandwidth for 5G SS BWA telecommunication devices is defined according to standard of ETSI TS 138 101-1. The transmitter requirements that must be met by 5G SS BWA telecommunication devices include:
- Maximum output power
- Minimum output power
- Spectrum emission mask
- New radio adjacent channel leakage power ratio
- Transmitter spurious emissions
In addition to transmitter requirements, 5G SS BWA telecommunication devices must also meet following receiver requirements:
- Reference sensitivity power level
- Receiver spurious emissions
- Blocking characteristics
- Spurious response
- Adjacent channel selectivity
The testing process for radio frequency requirements for both transmitter and receiver is carried out based on standards of ETSI TS 138 521-1 and/or 3GPP TS 38.521-1.
Technical requirements for base stations of radio frequency band 1.4 GHz
The 5G base station (BS) broadband wireless access (BWA) telecommunication device regulated in this technical regulation is a BS BWA type 1-C. 5G BS BWA with type 1-C must meet the conducted requirements on each antenna connector. The limitations of 5G BS BWA Class are explained as follows:
- 5G BS BWA is intended for macro cell scenarios with a minimum coupling loss between 5G BS BWA and 5G SS BWA of 70 dB.
- 5G BS BWA MR is intended for micro cell scenarios with a minimum coupling loss between 5G BS BWA and 5G SS BWA of 53 dB.
- 5G BS BWA LA is intended for pico cell scenarios with a minimum coupling loss between 5G BS BWA and 5G SS BWA of 45 dB.
If you have any question related to DJID certification, please don’t hesitate to contact us by sending enquiry to info@narmadi.com.
