6.4F Transmit signal quality for shared spectrum channel access
38.101-13GPPNRPart 1: Range 1 StandaloneRelease 17TSUser Equipment (UE) radio transmission and reception
6.4F.1 Frequency error
The requirements for frequency error in clause 6.4.1 apply.
6.4F.2 Transmit modulation quality
6.4F.2.0 General
Transmit modulation quality defines the modulation quality for expected in-channel RF transmissions from the UE. The transmit modulation quality is specified in terms of:
– Error Vector Magnitude (EVM) for the allocated resource blocks (RBs)
– EVM equalizer spectrum flatness derived from the equalizer coefficients generated by the EVM measurement process
– Carrier leakage
– In-band emissions for the non-allocated RB
All the parameters defined in clause 6.4.2 are defined using the measurement methodology specified in Annex F.
In case the parameter 3300 or 3301 is reported from UE via txDirectCurrentLocation IE (as defined in TS 38.331 [7]), carrier leakage measurement requirement in clause 6.4F.2.2 and 6.4F.2.3 shall be waived, and the RF correction with regard to the carrier leakage and IQ image shall be omitted during the calculation of transmit modulation quality.
6.4F.2.1 Error Vector Magnitude
The requirements for Error Vector Magnitude in clause 6.4.2.1 apply.
6.4F.2.2 Carrier leakage
The requirements for carrier leakage in clause 6.4.2.2 apply.
6.4F.2.3 In-band emissions
The in-band emission is defined as the average emission across 12 sub-carriers and as a function of the RB offset from the edge of the allocated UL transmission bandwidth. The in-band emission is measured as the ratio of the UE output power in a non–allocated RB to the UE output power in an allocated RB.
The basic in-band emissions measurement interval is defined over one slot in the time domain; however, the minimum requirement applies when the in-band emission measurement is averaged over 10 sub-frames. When the PUSCH or PUCCH transmission slot is shortened, the in-band emissions measurement interval is reduced by one or more symbols, accordingly. The requirement applies for power class 5 UE for 20 MHz channel bandwidth and 15 kHz SCS,
Instead of the general requirement in clause 6.4.2.3, the average of the basic in-band emission measurement over 10 sub-frames shall not exceed the values specified in Table 6.4F.2.3-1.
Table 6.4F.2.3-1: Minimum requirements for in-band emissions
|
Parameter description |
Unit |
Limit (NOTE 1) |
Applicable Frequencies |
|
|
General |
dB |
Any non-allocated (NOTE 2) |
||
|
IQ Image |
dB |
-28 |
Image frequencies when output power > 10 dBm |
Image frequencies (NOTES 2, 3) |
|
-25 |
Image frequencies when output power ≤ 10 dBm |
|||
|
Carrier leakage |
dBc |
-28 |
Output power > 10 dBm |
Carrier frequency (NOTES 4, 5) |
|
-25 |
0 dBm ≤ Output power ≤10 dBm |
|||
|
-20 |
-30 dBm ≤ Output power ≤ 0 dBm |
|||
|
-10 |
-40 dBm ≤ Output power < -30 dBm |
|||
|
NOTE 1: An in-band emissions combined limit is evaluated in each non-allocated RB. For each such RB, the minimum requirement is calculated as the higher of PRB – 30 dB and the power sum of all limit values (General, IQ Image or Carrier leakage) that apply. PRB is defined in NOTE 10. NOTE 2: The measurement bandwidth is 1 RB and the limit is expressed as a ratio of measured power in one non-allocated RB to the measured average power per allocated RB, where the averaging is done across all allocated RBs. The requirement applies with NOTE 3: [The applicable frequencies for this limit are those that are enclosed in the reflection of the allocated RBs, based on symmetry with respect to the reported carrier frequency location in txDirectCurrentLocation field of the UplinkTxDirectCurrentBWP, but excluding any allocated RBs. If txDirectCurrentLocation is not available or is reported with value 3300 or 3301, applicable frequencies shall be calculated with an assumed carrier frequency location at the center of the channel.] NOTE 4: [The measurement bandwidth is 1 RB and the limit is expressed as a ratio of measured power in one non-allocated RB to the measured total power in all allocated RBs with RIV=1 and RIV=5 in the uplink scheduling grant.] NOTE 5: [The applicable frequencies for this limit are those that are enclosed in the RBs containing the DC frequency if NOTE 6: NOTE 7: NOTE 10: |
||||
for any non-allocated RB with RIV=1 and RIV=5 in the uplink scheduling grant where RIV is specified in [10]. 
is odd, or in the two RBs immediately adjacent to the DC frequency if 
is even, but excluding any allocated RB. The location of the DC frequency is given by txDirectCurrentLocation field of the UplinkTxDirectCurrentBWP. If txDirectCurrentLocation is not available or is reported with value 3300 or 3301, applicable frequencies shall be those that are enclosed in the RB(s) in the center of the channel.]
is the starting frequency offset between the allocated RB and the measured non-allocated RB (e.g. 
or 
for the first adjacent RB outside of the allocated bandwidth.
is the transmitted power per 180*2 kHz in allocated RBs, measured in dBm.6.4F.2.4 EVM equalizer spectrum flatness
The requirements for EVM equalizer spectrum flatness in clause 6.4.2.4 apply.
6.4F.2A Transmit modulation quality for CA
6.4F.2A.1 Transmit modulation quality for inter-band CA
For inter-band carrier aggregation with uplink assigned to two bands, the transmit modulation quality requirements shall apply on the NR carrier as defined in clause 6.4.2 and on the carrier operating with shared spectrum access as defind in clause 6.4F.2. The requirements apply with all component carrier active: PCC with PRB allocation and SCC without PRB allocation and without CSI reporting and SRS configured.