General Description
R&S
®
CMW-KM750/-KM751
21
User Manual 1173.9670.02 ─ 05
Fig. 3-7: Modulation limit settings
The table below lists the test requirements of 3GPP TS 34.122.
Characteristics
Refer to 3GPP TS 34.122, section...
Specified Limit
EVM (RMS)
5.7.1 Error Vector Magnitude
≤ 17.5 %
Peak Code Domain Error
5.7.2 Peak code domain error
≤
–20 dB
Frequency Error
5.3 Frequency Error
< 0.1 ppm
3.5.2 Power Templates
The TD-SCDMA power templates specify the dynamic structure (power/time relationship)
of transmitted TD-SCDMA bursts. The burst is subdivided into different time intervals
(areas) with specified upper and lower transmitter output power. The entire power tem-
plate is defined relative to the average burst power.
The figure below shows the test requirements of 3GPP TS 34.122, sections 5.4.3 and
5.4.4. The transmission period refers to the burst without guard period for a single trans-
mission slot, and to the period from the beginning of the burst in the first transmission slot
to the end of the burst without guard period in the last transmission timeslot for consec-
utive transmission slots.
Limit Settings and Conformance Requirements
