A.3 Repeater stimulus signal spectral purity requirements

38.115-13GPPNRRelease 17Repeater conformance testing - Part 1: Conducted conformance testingTS

The reference channels or test models constituting the repeater stimulus signal shall fulfil the spectral purity requirements defined in table A.3-1, where:

– the reference spectral density shall be taken 200 kHz off the carrier centre frequency with an integration bandwidth of 30 kHz.

– Δf is the separation between the channel edge frequency and the nominal -3dB point of the measuring filter closest to the carrier frequency.

– f_offset is the separation between the channel edge frequency and the centre of the measuring filter.

– f_offset_max is the offset to the frequency 10 MHz outside the downlink operating band.

– Δf_max is equal to f_offset_max minus half of the bandwidth of the measuring filter.

– the minimum spectral density suppression is related to the reference spectral density.

[Table A.3-1: Repeater stimulus signal spectral purity requirements]

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Minimum requirement	Measure-ment bandwidth
0 MHz ≤ Δf < 0.15 MHz	0.015 MHz ≤ f_offset < 0.165 MHz	-40 + 20*( f_offset -0.015) dBc	30 kHz
0.15 MHz ≤ Δf < 0.2 MHz	0.165 MHz ≤ f_offset < 0.215 MHz	-37 dBc	30 kHz
0.2 MHz ≤ Δf < 1 MHz	0.215 MHz ≤ f_offset < 1.015 MHz		30 kHz
	1.015 MHz ≤ f_offset < 1.5 MHz	-106 dBm	30 kHz
1 MHz ≤ Δf < 2.8 MHz	1.5 MHz ≤ f_offset < 2.85 MHz	-78 dBm	1 MHz
2.8 MHz ≤ Δf ≤ Δfmax	2.85 MHz ≤ f_offset < f_offsetmax	-80 dBm	1 MHz
NOTE: Frequencies and bandwidths are given in MHz

Annex B (normative):
Environmental requirements for the repeater

<Text to be added>

Annex C (informative):
Test tolerances and derivation of test requirements

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Annex D (informative):
Measurement system set-up

Example of measurement system set-ups are attached below as an informative annex.