NB-IoT Multi-Evaluation Measurement
R&S
®
CMW-KM300/-KS300
209
User Manual 1178.5689.02 ─ 06
Figure 3-4: Frame structure for 15 kHz subcarrier spacing
3.2.6.2
Resource Unit Allocation
For allocation to a UE, the resources are grouped into resource units (RU). A resource
unit comprises a certain number of subcarriers (SC) in the frequency domain and a
certain number of slots in the time domain.
The allowed values depend on the NPUSCH format and on the subcarrier spacing, as
listed in the following table.
Table 3-2: Number of subcarriers and slots per resource unit
NPUSCH
format
SC spacing
No of SC
SC offset
No of slots
Modulation
RU duration
1
3.75 kHz
1
0 to 47
16
BPSK, QPSK
32 ms
15 kHz
1
0 to 11
16
BPSK, QPSK
8 ms
3
0, 3, 6, 9
8
QPSK
4 ms
6
0, 6
4
QPSK
2 ms
12
0
2
QPSK
1 ms
2
3.75 kHz
1
0 to 47
4
BPSK
8 ms
15 kHz
1
0 to 11
4
BPSK
2 ms
You can allocate a sequence of several resource units and define repetitions for the
resource unit sequence.
3.2.6.3
Frequency Bands
The carrier frequencies for NB-IoT uplink signals are defined in 3GPP TS 36.101. Each
operating band contains uplink carrier frequencies identified by channel numbers
General Description
深圳德标仪器
135-1095-0799
