6.4 Transmit signal quality
38.101-23GPPNRPart 2: Range 2 StandaloneRelease 17TSUser Equipment (UE) radio transmission and reception
6.4.1 Frequency Error
The UE basic measurement interval of modulated carrier frequency is 1 UL slot. The mean value of basic measurements of UE modulated carrier frequency shall be accurate to within ± 0.1 PPM observed over a period of 1 msec of cumulated measurement intevals compared to the carrier frequency received from the NR gNB.
The frequency error is defined as a directional requirement. The requirement is verified in beam locked mode with the test metric of Frequency (Link=TX beam peak direction, Meas=Link angle).
6.4.2 Transmit modulation quality
6.4.2.0 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.
All the requirements in 6.4.2 are defined as directional requirement. The requirements are verified in beam locked mode on beam peak direction, with parameter maxRank (as defined in TS 38.331 [13]) set to 1. The requirements are applicable to UL transmission from each configurable antenna port (as defined in TS 38.331 [13]) of UE, enabled one at a time.
In case the parameter 3300 or 3301 is reported from UE via the parameter txDirectCurrentLocation in UplinkTxDirectCurrentList IE (as defined in TS 38.331 [13]), carrier leakage measurement requirement in clause 6.4.2.2 and 6.4.2.3 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.
6.4.2.1 Error vector magnitude
The Error Vector Magnitude is a measure of the difference between the reference waveform and the measured waveform. This difference is called the error vector. Before calculating the EVM, the measured waveform is corrected by the sample timing offset and RF frequency offset. Then the carrier leakage shall be removed from the measured waveform before calculating the EVM.
The measured waveform is further equalised using the channel estimates subjected to the EVM equaliser spectrum flatness requirement specified in sub-clauses 6.4.2.4 and 6.4.2.5. For DFT-s-OFDM waveforms, the EVM result is defined after the front-end FFT and IDFT as the square root of the ratio of the mean error vector power to the mean reference power expressed as a %. For CP-OFDM waveforms, the EVM result is defined after the front-end FFT as the square root of the ratio of the mean error vector power to the mean reference power expressed as a %.
The basic EVM measurement interval in the time domain is one preamble sequence for the PRACH and one slot for PUCCH and PUSCH in the time domain. The EVM measurement interval is reduced by any symbols that contains an allowable power transient in the measurement interval as as defined in clause 6.3.3.
The RMS average of the basic EVM measurements over 10 subframes for the average EVM case, and over 60 subframes for the reference signal EVM case, for the different modulation schemes shall not exceed the values specified in Table 6.4.2.1-1 for the parameters defined in Table 6.4.2.1-2 or 6.4.2.1-3, depending on UE power class. For EVM evaluation purposes, all 13 PRACH preamble formats and all 5 PUCCH formats are considered to have the same EVM requirement as QPSK modulated.
The requirement is verified with the test metric of EVM (Link=TX beam peak direction, Meas=Link angle).
Table 6.4.2.1-1: Minimum requirements for error vector magnitude
Parameter |
Unit |
Average EVM level |
Reference signal EVM level |
Pi/2 BPSK |
% |
30.0 |
30.0 |
QPSK |
% |
17.5 |
17.5 |
16 QAM |
% |
12.5 |
12.5 |
64 QAM |
% |
8.0 |
8.0 |
Table 6.4.2.1-2: Parameters for Error Vector Magnitude for power class 1 in FR2-1
Parameter |
Unit |
Level |
UE EIRP |
dBm |
≥ 4 |
UE EIRP for UL 16 QAM |
dBm |
≥ 7 |
UE EIRP for UL 64 QAM |
dBm |
≥ 11 |
Operating conditions |
Normal conditions |
Table 6.4.2.1-2a: Parameters for Error Vector Magnitude for power class 1 in FR2-2
Level |
||||||
Parameter |
Unit |
100 MHz |
400 MHz |
800 MHz |
1600 MHz |
2000 MHz |
UE EIRP |
dBm |
≥ 4 |
≥ [2] |
≥ [5] |
≥ [8] |
≥ [9] |
UE EIRP for UL 16 QAM |
dBm |
≥ 7 |
≥ [5] |
≥ [8] |
≥ [11] |
≥ [12] |
UE EIRP for UL 64 QAM |
dBm |
≥ 11 |
≥ [9] |
≥ [12] |
≥ [15] |
≥ [16] |
Operating conditions |
Normal Conditions |
|||||
NOTE 1: PTRS is configured for 16 QAM and 64 QAM |
Table 6.4.2.1-3: Parameters for Error Vector Magnitude for power class 2, 3, 4 and 7 in FR2-1
Parameter |
Unit |
Level |
UE EIRP |
dBm |
≥ -13 |
UE EIRP for UL 16 QAM |
dBm |
≥ -10 |
UE EIRP for UL 64 QAM |
dBm |
≥ -6 |
Operating conditions |
Normal conditions |
Table 6.4.2.1-3a: Parameters for Error Vector Magnitude for power class 3 in FR2-2
Level |
||||||
Parameter |
Unit |
100 MHz |
400 MHz |
800 MHz |
1600 MHz |
2000 MHz |
UE EIRP |
dBm |
≥ -13 |
[≥ -11] |
[≥ -8] |
[≥ -5] |
[≥ -4] |
UE EIRP for UL 16 QAM |
dBm |
≥ -10 |
[≥ -8] |
[≥ -5] |
[≥ -2] |
[≥ -1] |
UE EIRP for UL 64 QAM |
dBm |
≥ -6 |
[≥ -4] |
[≥ -1] |
[≥ 2] |
[≥ 3] |
Operating conditions |
Normal Conditions |
|||||
NOTE 1: PTRS is configured for 16 QAM and 64 QAM |
Table 6.4.2.1-3b: Parameters for Error Vector Magnitude for power class 2 in FR2-2
Level |
||||||
Parameter |
Unit |
100 MHz |
400 MHz |
800 MHz |
1600 MHz |
2000 MHz |
UE EIRP |
dBm |
≥ -13 |
≥ [-11] |
≥ [-8] |
≥ [-5] |
≥ [-4] |
UE EIRP for UL 16 QAM |
dBm |
≥ -10 |
≥ [-8] |
≥ [-5] |
≥ [-2] |
≥ [-1] |
UE EIRP for UL 64 QAM |
dBm |
≥ -6 |
≥ [-4] |
≥ [-1] |
≥ [2] |
≥ [3] |
Operating conditions |
Normal Conditions |
|||||
NOTE 1: PTRS is configured for 16 QAM and 64 QAM |
Table 6.4.2.1-4: Parameters for Error Vector Magnitude for power class 5
Parameter |
Unit |
Level |
UE EIRP |
dBm |
≥ -6 |
UE EIRP for UL 16 QAM |
dBm |
≥ -3 |
UE EIRP for UL 64 QAM |
dBm |
≥ 1 |
Operating conditions |
Normal conditions |
6.4.2.2 Carrier leakage
6.4.2.2.1 General
Carrier leakage is an additive sinusoid waveform. The carrier leakage requirement is defined for each component carrier. The measurement interval is one slot in the time domain. The relative carrier leakage power is a power ratio of the additive sinusoid waveform to the power in the modulated waveform.
The requirement is verified with the test metric of Carrier Leakage (Link=TX beam peak direction, Meas=Link angle).
6.4.2.2.2 Carrier leakage for power class 1
When carrier leakage is contained inside the spectrum confined within the configured UL and DL CCs, the relative carrier leakage power shall not exceed the values specified in Table 6.4.2.2.2-1 and Table 6.4.2.2.2-2 for power class 1 UEs.
Table 6.4.2.2.2-1: Minimum requirements for relative carrier leakage power for power class 1 in FR2-1
Parameters |
Relative Limit (dBc) |
EIRP > 17 dBm |
-25 |
4 dBm ≤ EIRP ≤ 17 dBm |
-20 |
Table 6.4.2.2.2-2: Minimum requirements for relative carrier leakage power for power class 1 in FR2-2
Parameters |
Relative Limit (dBc) |
EIRP > 13.4 dBm |
-25 |
0.4 dBm ≤ EIRP ≤ 13.4 dBm |
-20 |
6.4.2.2.3 Carrier leakage for power class 2
When carrier leakage is contained inside the spectrum occupied by the configured UL CCs and DL CCs, the relative carrier leakage power shall not exceed the values specified in Table 6.4.2.2.3-1 and Table 6.4.2.2.3-2 for power class 2.
Table 6.4.2.2.3-1: Minimum requirements for relative carrier leakage power for power class 2 in FR2-1
Parameters |
Relative Limit (dBc) |
EIRP > 6 dBm |
-25 |
-13 dBm ≤ EIRP ≤ 6 dBm |
-20 |
Table 6.4.2.2.3-2: Minimum requirements for relative carrier leakage power for power class 2 in FR2-2
Parameters |
Relative Limit (dBc) |
EIRP > 5.8 dBm |
-25 |
-13.2 dBm ≤ EIRP ≤ 5.8 dBm |
-20 |
6.4.2.2.4 Carrier leakage for power class 3
When carrier leakage is contained inside the spectrum occupied by the configured UL CCs and DL CCs, the relative carrier leakage power shall not exceed the values specified in Table 6.4.2.2.4-1 and Table 6.4.2.2.4-2 for power class 3 UEs.
Table 6.4.2.2.4-1: Minimum requirements for relative carrier leakage power for power class 3 in FR2-1
Parameters |
Relative Limit (dBc) |
EIRP > 0 dBm |
-25 |
-13 dBm ≤ EIRP ≤ 0 dBm |
-20 |
Table 6.4.2.2.4-2: Minimum requirements for relative carrier leakage power for power class 3 in FR2-2
Parameters |
Relative Limit (dBc) |
EIRP > -1.9 dBm |
-25 |
-14.9 dBm ≤ EIRP ≤ -1.9 dBm |
-20 |
6.4.2.2.5 Carrier leakage for power class 4
When carrier leakage is contained inside the spectrum occupied by the configured UL CCs and DL CCs, the relative carrier leakage power shall not exceed the values specified in Table 6.4.2.2.5-1 for power class 4.
Table 6.4.2.2.5-1: Minimum requirements for relative carrier leakage power for power class 4
Parameters |
Relative Limit (dBc) |
EIRP > 11 dBm |
-25 |
-13 dBm ≤ EIRP ≤ 11 dBm |
-20 |
6.4.2.2.6 Carrier leakage for power class 5
When carrier leakage is contained inside the spectrum occupied by the configured UL CCs and DL CCs, the relative carrier leakage power shall not exceed the values specified in Table 6.4.2.2.6-1 for power class 5.
Table 6.4.2.2.6-1: Minimum requirements for relative carrier leakage power for power class 5
Parameters |
Relative Limit (dBc) |
EIRP > 7 dBm |
-25 |
-6 dBm ≤ EIRP ≤ 7 dBm |
-20 |
6.4.2.2.7 Carrier leakage for power class 6
For power class 6, the carrier leakage requirement specified in clause 6.4.2.2.6 for power class 5 applies.
6.4.2.2.8 Carrier leakage for power class 7
When carrier leakage is contained inside the spectrum occupied by the configured UL CCs and DL CCs, the relative carrier leakage power specified in subclause 6.4.2.2.4 applies.
6.4.2.3 In-band emissions
6.4.2.3.1 General
The in-band emission is defined as the average 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 IBE requirement does not apply if UE declares support for mpr-PowerBoost-FR2-r16, UL transmission is QPSK,MPRf,c = 0 and when NS_200 applies, and the network configures the UE to operate with mpr-PowerBoost-FR2-r16.
The basic in-band emissions measurement interval is identical to that of the EVM test.
The requirement is verified with the test metric of In-band emission (Link=TX beam peak direction, Meas=Link angle).
6.4.2.3.2 In-band emissions for power class 1
The average of the in-band emission measurement over 10 sub-frames shall not exceed the values specified in Table 6.4.2.3.2-1 for power class 1 UEs.
Table 6.4.2.3.2-1: Requirements for in-band emissions for power class 1
Parameter description |
Unit |
Limit (NOTE 1) |
Applicable Frequencies |
||
General |
dB |
Any non-allocated (NOTE 2) |
|||
Output power for FR2-1 |
Output Power for FR2-2 |
||||
IQ Image |
dB |
-25 |
> 27 dBm |
> 23.4 dBm |
Image frequencies (NOTES 2, 3) |
-20 |
≤ 27 dBm |
≤ 23.4 dBm |
|||
Carrier leakage |
dBc |
-25 |
> 17 dBm |
> 13.4 dBm |
Carrier frequency (NOTES 4, 5) |
-20 |
4 dBm ≤ Output power ≤ 17 dBm |
0.4 dBm ≤ Output power ≤ 13.4 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 (- 25 dB) and the power sum of all limit values (General, IQ Image or Carrier leakage) that apply. 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. For pi/2 BPSK with Spectrum Shaping, the limit is expressed as a ratio of measured power in one non-allocated RB to the measured power in the allocated RB with highest PSD NOTE 3: The applicable frequencies for this limit are those that are enclosed in the reflection of the allocated bandwidth, based on symmetry with respect to the carrier frequency, but excluding any allocated RBs. 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. NOTE 5: The applicable frequencies for this limit depend on the parameter txDirectCurrentLocation in UplinkTxDirectCurrent IE, and are those that are enclosed in the RBs containing the DC frequency but excluding any allocated RB. NOTE 6: LCRB is the Transmission Bandwidth (see Clause 5.3). NOTE 7: NRB is the Transmission Bandwidth Configuration (see Clause 5.3). NOTE 8: EVM s the limit for the modulation format used in the allocated RBs. NOTE 9: RB is the starting frequency offset between the allocated RB and the measured non-allocated RB (e.g. RB = 1 or RB = -1 for the first adjacent RB outside of the allocated bandwidth). NOTE 10: is an average of the transmitted power over 10 sub-frames normalized by the number of allocated RBs, measured in dBm. NOTE 11: All powers are EIRP in beam peak direction. |
6.4.2.3.3 In-band emissions for power class 2
The average of the in-band emission measurement over 10 sub-frames shall not exceed the values specified in Table 6.4.2.3.3-1 for power class 2.
Table 6.4.2.3.3-1: Requirements for in-band emissions for power class 2
Parameter description |
Unit |
Limit (NOTE 1) |
Applicable Frequencies |
||
General |
dB |
Any non-allocated RB in allocated component carrier and not allocated component carriers (NOTE 2) |
|||
Output power for FR2-1 |
Output Power for FR2-2 |
||||
IQ Image |
dB |
-25 |
Output power > 16 dBm |
Output power > 15.8 dBm |
Image frequencies (NOTES 2, 3) |
-20 |
Output power ≤ 16 dBm |
Output power ≤ 15.8 dBm |
|||
Carrier leakage |
dBc |
-25 |
Output power > 6 dBm |
Output power > 5.8 dBm |
Carrier frequency (NOTES 4, 5) |
-20 |
-13 dBm ≤ Output power ≤ 6 dBm |
-13.2 dBm ≤ Output power ≤ 5.8 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 (- 25 dB) and the power sum of all limit values (General, IQ Image or Carrier leakage) that apply. is defined in NOTE 9. 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. For Pi/2 BPSK with Spectrum Shaping, the limit is expressed as a ratio of measured power in one non-allocated RB to the measured power in the allocated RB with highest PSD. NOTE 3: Image frequencies for UL CA are specified in relation to either UL or DL carrier frequency. 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. NOTE 5: The applicable frequencies for this limit are those that are enclosed in the RBs containing the DC frequency, or in the two RBs immediately adjacent to the DC frequency but excluding any allocated RB. NOTE 6: is the Transmission Bandwidth for kth allocated component carrier (see Figure 5.3.3-1). NOTE 7: EVM s the limit for the modulation format used in the allocated RBs. NOTE 8: is the starting frequency offset between the allocated RB and the measured non-allocated RB (e.g. = 1 or = -1 for the first adjacent RB outside of the allocated bandwidth), and may take non-integer values when the carrier spacing between the CCs is not a multiple of RB. NOTE 9: is an average of the transmitted power over 10 sub-frames normalized by the number of allocated RBs, measured in dBm. NOTE 10: All powers are EIRP in beam peak direction. |
Table 6.4.2.3.3-2: Void
6.4.2.3.4 In-band emissions for power class 3
The average of the in-band emission measurement over 10 sub-frames shall not exceed the values specified in Table 6.4.2.3.4-1 for power class 3 UEs.
Table 6.4.2.3.4-1: Requirements for in-band emissions for power class 3
Parameter description |
Unit |
Limit (NOTE 1) |
Applicable Frequencies |
||
General |
dB |
Any non-allocated (NOTE 2) |
|||
Output power for FR2-1 |
Output Power for FR2-2 |
||||
IQ Image |
dB |
-25 |
> 10 dBm |
> 8.1 dBm |
Image frequencies (NOTES 2, 3) |
-20 |
≤ 10 dBm |
≤ 8.1 dBm |
|||
Carrier leakage |
dBc |
-25 |
> 0 dBm |
> -1.9dBm |
Carrier frequency (NOTES 4, 5) |
-20 |
-13 dBm ≤ Output power ≤ 0 dBm |
-14.9 dBm ≤ Output power ≤ -1.9 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 (- 25 dB) and the power sum of all limit values (General, IQ Image or Carrier leakage) that apply. 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. For Pi/2 BPSK with Spectrum Shaping, the limit is expressed as a ratio of measured power in one non-allocated RB to the measured power in the allocated RB with highest PSD NOTE 3: The applicable frequencies for this limit are those that are enclosed in the reflection of the allocated bandwidth, based on symmetry with respect to the carrier frequency, but excluding any allocated RBs. 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. NOTE 5: The applicable frequencies for this limit depend on the parameter txDirectCurrentLocation in UplinkTxDirectCurrent IE, and are those that are enclosed in the RBs containing the DC frequency but excluding any allocated RB. NOTE 6: LCRB is the Transmission Bandwidth (see Clause 5.3). NOTE 7: NRB is the Transmission Bandwidth Configuration (see Clause 5.3). NOTE 8: EVM s the limit for the modulation format used in the allocated RBs. NOTE 9: RB is the starting frequency offset between the allocated RB and the measured non-allocated RB (e.g. RB = 1 or RB = -1 for the first adjacent RB outside of the allocated bandwidth). NOTE 10: is an average of the transmitted power over 10 sub-frames normalized by the number of allocated RBs, measured in dBm. NOTE 11: All powers are EIRP in beam peak direction. |
6.4.2.3.5 In-band emissions for power class 4
The average of the in-band emission measurement over 10 sub-frames shall not exceed the values specified in Table 6.4.2.3.5-1 for power class 4 UEs.
Table 6.4.2.3.5-1: Requirements for in-band emissions for power class 4
Parameter description |
Unit |
Limit (NOTE 1) |
Applicable Frequencies |
|
General |
dB |
Any non-allocated (NOTE 2) |
||
IQ Image |
dB |
-25 |
Output power > 21 dBm |
Image frequencies (NOTES 2, 3) |
-20 |
Output power ≤ 21 dBm |
|||
Carrier leakage |
dBc |
-25 |
Output power > 11 dBm |
Carrier frequency (NOTES 4, 5) |
-20 |
-13 dBm ≤ Output power ≤ 11 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 (- 25 dB) and the power sum of all limit values (General, IQ Image or Carrier leakage) that apply. 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. For Pi/2 BPSK with Spectrum Shaping, the limit is expressed as a ratio of measured power in one non-allocated RB to the measured power in the allocated RB with highest PSD NOTE 3: The applicable frequencies for this limit are those that are enclosed in the reflection of the allocated bandwidth, based on symmetry with respect to the carrier frequency, but excluding any allocated RBs. 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. NOTE 5: The applicable frequencies for this limit depend on the parameter txDirectCurrentLocation in UplinkTxDirectCurrent IE, and are those that are enclosed in the RBs containing the DC frequency but excluding any allocated RB. NOTE 6: LCRB is the Transmission Bandwidth (see Clause 5.3). NOTE 7: NRB is the Transmission Bandwidth Configuration (see Clause 5.3). NOTE 8: EVM s the limit for the modulation format used in the allocated RBs. NOTE 9: RB is the starting frequency offset between the allocated RB and the measured non-allocated RB (e.g. RB = 1 or RB = -1 for the first adjacent RB outside of the allocated bandwidth). NOTE 10: is an average of the transmitted power over 10 sub-frames normalized by the number of allocated RBs, measured in dBm. NOTE 11: All powers are EIRP in beam peak direction. |
6.4.2.3.6 In-band emissions for power class 5
The average of the in-band emission measurement over 10 sub-frames shall not exceed the values specified in Table 6.4.2.3.6-1 for power class 5 UEs.
Table 6.4.2.3.6-1: Requirements for in-band emissions for power class 5
Parameter description |
Unit |
Limit (NOTE 1) |
Applicable Frequencies |
|
General |
dB |
Any non-allocated (NOTE 2) |
||
IQ Image |
dB |
-25 |
Output power > 17 dBm |
Image frequencies (NOTES 2, 3) |
-20 |
Output power ≤ 17 dBm |
|||
Carrier leakage |
dBc |
-25 |
Output power > 7 dBm |
Carrier frequency (NOTES 4, 5) |
-20 |
-6 dBm ≤ Output power ≤ 7 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 (- 25 dB) and the power sum of all limit values (General, IQ Image or Carrier leakage) that apply. 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. For Pi/2 BPSK with Spectrum Shaping, the limit is expressed as a ratio of measured power in one non-allocated RB to the measured power in the allocated RB with highest PSD NOTE 3: The applicable frequencies for this limit are those that are enclosed in the reflection of the allocated bandwidth, based on symmetry with respect to the carrier frequency, but excluding any allocated RBs. 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. NOTE 5: The applicable frequencies for this limit depend on the parameter txDirectCurrentLocation in UplinkTxDirectCurrent IE, and are those that are enclosed in the RBs containing the DC frequency but excluding any allocated RB. NOTE 6: LCRB is the Transmission Bandwidth (see Clause 5.3). NOTE 7: NRB is the Transmission Bandwidth Configuration (see Clause 5.3). NOTE 8: EVM s the limit for the modulation format used in the allocated RBs. NOTE 9: RB is the starting frequency offset between the allocated RB and the measured non-allocated RB (e.g. RB = 1 or RB = -1 for the first adjacent RB outside of the allocated bandwidth). NOTE 10: is an average of the transmitted power over 10 sub-frames normalized by the number of allocated RBs, measured in dBm. NOTE 11: All powers are EIRP in beam peak direction. |
6.4.2.3.7 In-band emissions for power class 6
For power class 6, the in-band emissions requirement specified in clause 6.4.2.3.6 for power class 5 applies.
6.4.2.3.8 In-band emissions for power class 7
The average of the in-band emission specified in subclause 6.4.2.3.4 applies.
6.4.2.4 EVM equalizer spectrum flatness
The EVM measurement process (as described in Annex F) entails generation of a zero-forcing equalizer. The EVM equalizer spectrum flatness is defined in terms of the maximum peak-to-peak ripple of the equalizer coefficients (dB) across the allocated uplink block. The basic measurement interval is the same as for EVM.
For Pi/2 BPSK modulation, the minimum requirements are defined in Clause 6.4.2.5.
The peak-to-peak variation of the EVM equalizer coefficients contained within the frequency range of the uplink allocation shall not exceed the maximum ripple specified in Table 6.4.2.4-1 for normal conditions. For uplink allocations contained within both Range 1 and Range 2, the coefficients evaluated within each of these frequency ranges shall meet the corresponding ripple requirement and the following additional requirements: the relative difference between the maximum coefficient in Range 1 and the minimum coefficient in Range 2 (Table 6.4.2.4-1) must not be larger than 7 dB, and the relative difference between the maximum coefficient in Range 2 and the minimum coefficient in Range 1 must not be larger than 8 dB (see Figure 6.4.2.4-1).
The requirement is verified with the test metric of EVM SF (Link=TX beam peak direction, Meas=Link angle).
Table 6.4.2.4-1: Minimum requirements for EVM equalizer spectrum flatness (normal conditions)
Frequency range |
Maximum ripple (dB) |
|FUL_Meas – F_center| ≤ X MHz (Range 1) |
6 (p-p) |
|FUL_Meas – F_center| > X MHz (Range 2) |
9 (p-p) |
NOTE 1: FUL_Meas refers to the sub-carrier frequency for which the equalizer coefficient is evaluated NOTE 2: F_center refers to the center frequency of the CC NOTE 3: X, in MHz, is equal to 30 % of the CC bandwidth |
Table 6.4.2.4-2: (Void)
Figure 6.4.2.4-1: The limits for EVM equalizer spectral flatness with the maximum allowed variation of the coefficients indicated under normal conditions
6.4.2.5 EVM spectral flatness for Pi/2 BPSK modulation
These requirements are defined for Pi/2 BPSK modulation. The EVM equalizer coefficients across the allocated uplink block shall be modified to fit inside the mask specified in Table 6.4.2.5-1 for normal conditions, prior to the calculation of EVM. The limiting mask shall be placed to minimize the change in equalizer coefficients in a sum of squares sense.
Table 6.4.2.5-1: Mask for EVM equalizer coefficients for pi/2 BPSK (normal conditions)
Frequency range |
Parameter |
Maximum ripple (dB) |
|FUL_Meas – F_center| ≤ X MHz (Range 1) |
X1 |
6 (p-p) |
|FUL_Meas – F_center| > X MHz (Range 2) |
X2 |
14 (p-p) |
NOTE 1: FUL_Meas refers to the sub-carrier frequency for which the equalizer coefficient is evaluated NOTE 2: F_center refers to the center frequency of an allocated block of PRBs NOTE 3: X, in MHz, is equal to 25% of the bandwidth of the PRB allocation NOTE 4: See Figure 6.4.2.5-1 for description of X1, X2 and X3 |
Figure 6.4.2.5-1: The limits for EVM equalizer spectral flatness with the maximum allowed variation. F_center denotes the center frequency of the allocated block of PRBs.
This requirement does not apply to other modulation types. The UE shall be allowed to employ spectral shaping for Pi/2 BPSK. The shaping filter shall be restricted so that the impulse response of the transmit chain shall meet
│ãt(t,0)│ ≥ │ãt(t, τ)│ ∀τ ≠ 0
20log10│ãt(t,τ)│< -15 dB 1< τ < M – 1,
Where:
│ãt(t,τ)│=IDFT{│ãt(t,f)│ejφ (t,f)} ,
f is the frequency of the M allocated subcarriers,
ã(t,f) and φ(t,f) are the amplitude and phase response, respectively of the transmit chain
0dB reference is defined as 20log10│ãt(t,0)│
6.4.2.6 Phase continuity requirements for DMRS bundling
For bands that UE indicates the support of DMRS bundling, the maximum allowable difference between the measured phase value in any slot p-1 and slot p shall satisfy the requirements as listed in Table 6.4.2.6-1 for the measurement conditions defined in Table 6.4.2.6-2, within a measurement time window limited by the UE capability of maximum duration for DMRS bundling [maxDurationDMRS-Bundling-r17], and defined for each frequency band separately. The phase value for each slot is measured as shown in Annex F.8. These requirements apply to PUCCH and PUSCH transmissions with DFT-s-OFDM and CP-OFDM waveforms.
Table 6.4.2.6-1: Maximum allowable phase difference for DMRS bundling
UL channel |
Modulation order |
Phase difference between any slot p-1 and slot p (NOTE 2) |
PUSCH |
Pi/2 BPSK, QPSK |
[25] degrees |
PUCCH |
Pi/2 BPSK, BPSK, QPSK |
|
NOTE 1: The UE capability of the length of maximum duration refers to the maximum time duration during which UE is able to meet the phase continuity requirements, assuming no phase consistency violating events defined in TS 38.214 in between. NOTE 2: This requirement applies for TDD bands, for supported DMRS bundling configurations ≤ 8 slots. |
The above requirements are applicable when all the following conditions are met within the measurement time window.
– RB allocation in terms of length and frequency position does not change, and intra-slot and inter-slot frequency hopping is not activated.
– Modulation order does not change.
– No network commanded TA takes effect.
– The TPMI precoder does not change.
– There is no change in UE EIRP level, and no change in the level of P-MPR applied by the UE.
– UE is not scheduled with uplink transmission of other physical channel/signal in-between the PUSCH or PUCCH transmissions.
– For TDD, no downlink slot(s) or downlink symbol(s) or flexible symbol(s) with/without DL monitoring occasion configured in-between the PUSCH or PUCCH transmissions.
– No uplink beam switching occurs.
Table 6.4.2.6-2: Measurement conditions for the maximum allowable phase difference
Parameter |
Unit |
Level |
UE EIRP |
dBm |
PUMAX,f,c in clause 6.2.4, P-MPR = 0 |
UE downlink received power |
Not change |
|
Operating conditions |
Normal conditions |
|
Transmission bandwidth |
Confined within FUL_low + [4] MHz and FUL_high – [4] MHz |
|
DL signal frequency |
Not change before and during the measurement window |
|
DL signal timing |
Maintained constant before and during the measurement window |
|
UL slots for testing |
Tested on consecutive UL slots |
|
PUSCH waveform for testing |
DFT-s-OFDM |
NOTE: Phase continuity requirements for DMRS bundling is defined only within FR2-1 in this release of the specification.