Hanoi-Vietnam: Technical requirements for E-UTRA FDD Repeater

20:42, 10/07/2024

The Vietnam Ministry of Information and Communications has signed for issuing Circular 25/2017/TT-BTTTT on the National technical regulation on Evolved Universal Terrestrial Radio Access (E-UTRA FDD) Repeater.

According to Circular 25/2017/TT-BTTTT, the E-UTRA FDD repeater must meet the following technical requirements:

Technical Requirements	Corresponding Measurement Methods
Unwanted emissions in the operating band	3.3.1
Spurious emissions	3.3.2
Maximum output power	3.3.3
Input intermodulation	3.3.4
Out-of-band gain	3.3.5
Adjacent channel rejection	3.3.6
Output intermodulation	3.3.7
Radiated emissions	3.3.8

According to Circular 25/2017/TT-BTTTT, unwanted emissions include out-of-band emissions and spurious emissions. Out-of-band emissions are emissions outside the channel bandwidth, excluding spurious emissions. Spurious emissions are emissions generated by unwanted effects of the transmitter such as harmonic emissions, parasitic emissions...

More details can be found in Circular 25/2017/TT-BTTTT, effective from July 1, 2018.

- Thanh Lam -

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