Error limits of DCS 1 800 at RX noise level in VAMOS mode in Vietnam

01:19, 11/07/2024

Circular 30/2016/TT-BTTTT has been enacted by the Ministry of Information and Communications, stipulating the National Technical Regulations on GSM Mobile Communication Base Station Equipment.

To be specific, the multi-path error limits of DCS 1 800 at RX noise levels for the channels in VAMOS policies are specified in Circular 30/2016/TT-BTTTT as follows:

Channel Type	Error Measurement Parameter	SCPIR _ UL (dB)	Error Rate for Defined Measurement Scenario
			VUTS-2
TCH/HS	(FER)	0	1 %
- class Ib	(RBER)	0	0.18 %
- class II	(RBER)	0	3.50 %
TCH/EFS	(FER)	0	1 %
- class lb	(RBER)	0	0.04 %
- class II	(RBER)	0	3.85 %
TCH/AFS 12.2	(FER)	0	1 %
- class lb	(RBER)	0	0.52 %
TCH/AFS 4.75	(FER)	0	1 %
- class lb	(RBER)	0	0.13 %
TCH/AHS 7.4	(FER)	0	1 %
- class lb	(RBER)	0	0.18 %
- class II	(RBER)	0	1.54 %
TCH/AHS 4.75	(FER)	0	1 %
- class lb	(RBER)	0	0.21 %
- class II	(RBER)	0	4.40 %
TCH/WFS 12.65	(FER)	0	1 %
...	...	...	...

Details can be found in Circular 30/2016/TT-BTTTT, effective from May 1, 2017.

- Thanh Lam -

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