Vietnam’s National Technical Regulation on Evolved Universal Terrestrial Radio Access (E-UTRA) Base Stations (BS) - Radio Access

Vietnam’s National Technical Regulation on Evolved Universal Terrestrial Radio Access (E-UTRA) Base Stations (BS) - Radio Access 

- The National Technical Regulation on Evolved Universal Terrestrial Radio Access (E-UTRA) Base Stations (BS) - Radio Access (QCVN 110:2023/BTTTT) is promulgated together with Circular No. 15/2023/TT-BTTTT. 

- This Regulation applies to Vietnamese and foreign organizations and individuals engaging in the manufacture and business of equipment under the scope of this Regulation in Vietnam’s territory. 

General requirements

Manufacturers of equipment shall disclose: 

- Operating bands of base stations; 

- Operating bands for carrier aggregation of base stations;

- Supported RF configurations according to Regulation 4.6.8 of ETSI TS 136 141.

Regarding base stations supporting many operating bands, the tests prescribed in Article 3 of this Regulation shall be carried out on each band. 

Regarding base stations configured to receive multiple carriers, every requirement for the throughput shall apply to each received carrier. Regarding ACS characteristics, which are blocking and intermodulation, the negative offsets of the interfering signal must be relative to the upper edge of the RF bandwidth of the base stations.

Regarding multi-band base stations, all of the requirements in this Regulation shall apply to each operating band unless otherwise prescribed by regulations.  In certain cases, it is possible to stipulate additional requirements or specific removal applicable to such base stations. 

Regarding multi-band base stations that are combinations of receivers (multi or single-band) mapped to one or more antenna ports in different ways, if the bands are transmitted on separate antennas then:

- Tests of single-band ACLR, unwanted emissions in the operating band, spurious emissions from transmitters, intermodulation of transmitters, and spurious emissions from receivers applicable to each antenna connector shall be made;

- Regarding single-band base stations, single-band requirements shall apply to antenna connectors configured for single-band operations and even multi-band base stations. Single-band requirements shall be independently tested at antenna connectors configured for single-band operations while other antenna connectors are eligible for endpoint use.

Regarding a multi-band base station providing support for bands for TDD, RF requirements in this Regulation mean the simulation of synchronized operations, with the uplink and the downlink not appearing simultaneously between supported operating bands.

Technical requirements applicable to base station configurations are prescribed in Appendix A. 

See more details in Circular No. 15/2023/TT-BTTTT, which comes into force as of July 1, 2024 and replaces Circular No. 24/2017/TT-BTTTT dated October 17, 2017. 

>> CLICK HERE TO READ THIS ARTICLE IN VIETNAMESE