K.1 Direct far field (DFF)

38.521-23GPPNRPart 2: Range 2 StandaloneRadio transmission and receptionRelease 17TSUser Equipment (UE) conformance specification

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

K.1.1 TX beam peak direction search

This Tx beam peak search procedure applies to DUTs with and without support of beamCorrespondenceWithoutUL-BeamSweeping. The TX beam peak direction is found with a 3D EIRP scan (separately for each orthogonal downlink polarization). The TX beam peak direction search grid points for this single grid approach are defined in Annex M.2.1. Alternatively, a coarse and fine grid approach could be used according to the definition in Annex M.2.2.

The beam peak searches shall be performed for every test frequency range by default unless the device manufacturer explicitly declares that the beam peak at the mid test frequency range is applicable for the remaining (low, high) test frequency ranges. Beam peak search results cannot be re-used across different bands that do not overlap. Beam peak search results can be re-used from bands that completely contain the target bands if explicitly declared with a declaration.

A beam peak search shall be performed for every intra-band contiguous combination and CA BW class by default unless the device manufacturer explicitly declares that the beam peak for a reference (frequency band, CBW) or (frequency band combination, CA BW class) is applicable for a group of other intra-band contiguous combinations and CA BW classes.

The beam peak searches shall be performed for every modulation by default unless the device manufacturer explicitly declares that the beam peak at the QPSK modulation is applicable for the remaining 16QAM and 64QAM modulations.

The beam peak searches shall be performed for every waveform by default unless the device manufacturer explicitly declares that the beam peak from one waveform is applicable for the other waveform.

The beam peak searches shall be performed separately for NTC (Normal), ETC (TL), and ETC (TH).

The beam peak search results from single carrier can be re-used for UL MIMO testing.

The measurement procedure includes the following steps:

1) Select any of the three Alignment Options (1, 2, or 3) from Tables N.2-1 through N.2-7 [3] to mount the DUT inside the QZ.

2) Position the DUT in DUT Orientation 1 from Tables N.2-1 through N.2-7 [3].

3) Connect the SS (System Simulator) with the DUT through the measurement antenna with Pol_Link= polarization to form the TX beam towards the measurement antenna. Allow at least BEAM_SELECT_WAIT_TIME for the UE TX beam selection to complete.

4) Send continuously uplink power control "up" commands in every uplink scheduling information to the UE; allow at least 200 msec starting from the first TPC Command in this step for the UE to reach P_UMAX level. Allow at least BEAM_SELECT_WAIT_TIME for the UE Tx beam selection to complete.

5) Through its beam correspondence procedure, DUT refines its TX beam toward that direction depending on DUT’s beam correspondence capability which shall match OEM declaration:

– If the DUT’s beam correspondence capability beamCorrespondenceWithoutUL-BeamSweeping is supported, then DUT autonomously chooses the corresponding TX beam for PUSCH transmission using downlink reference signals to transmit in the direction of the incoming DL signal, which is based on beam correspondence without relying on UL beam sweeping;

– If the DUT’s beam correspondence capability beamCorrespondenceWithoutUL-BeamSweeping is not present, then DUT chooses the TX beam for PUSCH transmission which is based on beam correspondence with relying on both DL measurements on downlink reference signals and network-assisted uplink beam sweeping (NOTE 3).

6) SS activates the UE Beamlock Function (UBF) by performing the procedure as specified in TS 38.508-1 [10] clause 4.9.2 using condition Tx only.

7) Measure the mean power P_meas(Pol_Meas= Pol_Link=) of the modulated signal arriving at the power measurement equipment (such as a spectrum analyser, power meter, or gNB emulator).

8) Calculate EIRP (Pol_Meas= Pol_Link=) by adding the composite loss of the entire transmission path for utilized signal path, L_EIRP,θ, and frequency to the measured power P_meas(Pol_Meas= Pol_Link=).

9) Measure the mean power P_meas (Pol_Meas= Pol_Link=) of the modulated signal arriving at the power measurement equipment.

10) Calculate EIRP (Pol_Meas= Pol_Link=) by adding the composite losses of the entire transmission path for utilized signal path, L_EIRP,φ, and frequency to the measured power P_meas (Pol_Meas= Pol_Link=).

11) Calculate total EIRP(Pol_Link=) = EIRP(Pol_Meas= Pol_Link=) + EIRP(Pol_Meas= Pol_Link=).

12) SS deactivates the UE Beamlock Function (UBF) by performing the procedure as specified in TS 38.508-1 [10] clause 4.9.3.

13) Connect the SS (System Simulator) with the DUT through the measurement antenna with Pol_Link= polarization to form the TX beam towards the measurement antenna. Allow at least BEAM_SELECT_WAIT_TIME for the UE TX beam selection to complete.

14) Repeat steps 4 through 12 and get the result of total EIRP(Pol_Link=) = EIRP(Pol_Meas= Pol_Link=) + EIRP(Pol_Meas= Pol_Link=)

15) Advance to the next grid point and repeat steps 3 through 14 until measurements within zenith range 0^o≤≤90^o have been completed

16) After the measurements within zenith range 0^o≤≤90^o have been completed and

a) if the re-positioning concept is applied to the TX test cases, position the device in DUT Orientation 2 (either Options 1 or 2) from Tables N.2-1 through N.2-7 [3] for the Alignment Option selected in Step 1. For the TX beam peak search in the second hemisphere, perform steps 3 through 15 for the range of zenith angles 90^o>q≥0^o.

b) if the re-positioning concept is not applied to the TX test cases, continue steps 3 through 15 for the range of zenith angles 90^o<≤180^o

If the beam correspondence capability beamCorrespondenceWithoutUL-BeamSweeping is not present, the above step 5) can be further clarified as following sub-steps:

5.1) DUT uses downlink reference signals to select proper RX beam and uses autonomous beam correspondence to select the TX beam.

5.2) SS configures M=8 SRS resources to DUT, with the field spatialRelationInfo omitted and the field usage set as ‘beamManagement’. In case DUT supports less than 8 SRS resources, SS configures the number of SRS resources according to the maximum number of SRS resources indicated by UE capability signalling. Additionally, for codebook based PUSCH transmission, SS configures a semi-persistent SRS resource set with the field usage as ‘codebook’.

5.3) Based on the TX beam autonomously selected by DUT, DUT chooses TX beams to transmit SRS-resources configured by SS.

5.4) Based on measurement of the received beamManagement SRS, SS chooses the best SRS beam and, if needed, updates the spatial relation information between the semi-persistent codebook SRS resources and the SS selected beamManagement SRS resource in the activation MAC CE of the semi-persistent SRS resource. The SS indicates in the SRS Resource Indicator (SRI) field in the scheduling grant for PUSCH, if present, the SRS resource within the semi-persistent SRS resource set whose spatial relation is linked to the best detected SRS beam.

5.5) DUT transmits PUSCH corresponding to the SRS resource indicated by the SRI.

The TX beam peak direction is where the maximum total component of EIRP(Pol_Link=) or EIRP(Pol_Link=) is found. Whenever this TX beam peak direction is used, if the UE does not support beamCorrespondenceWithoutUL-BeamSweeping, the side conditions for SSB-based and CSI-RS based L1-RSRP measurements are applied as per Table 6.6.1.3.3.1.1-1 and Table 6.6.1.3.3.1.1-2 respectively just before setting TX beam peak direction.

NOTE 1: Void.

NOTE 2: VOID.

NOTE 3:

In order to allow the UE to carry out its Rel 15 beam correspondence procedure, the side conditions for SSB based and CSI-RS based L1-RSRP measurements are configured as per Table 6.6.1.3.3.1.1-1 and Table 6.6.1.3.3.1.1-2 respectively.

For Release 16 and forward UEs: unless otherwise stated within the test case, the following side conditions are applied for the enhanced beam correspondence procedure, depending on the UE capability

1. If beamCorrespondenceWithoutUL-BeamSweeping is NOT supported and beamCorrespondenceSSB-based-r16 is supported: use side conditions defined in Table 6.6.1.3.3.1.1-1
2. If beamCorrespondenceWithoutUL-BeamSweeping is NOT supported, and beamCorrespondenceCSI-RS-based-r16 is supported: use side conditions defined in Table 6.6.2.3.3-1
3. If beamCorrespondenceWithoutUL-BeamSweeping is NOT supported and beamCorrespondenceSSB-based-r16 and beamCorrespondenceCSI-RS-based-r16 are supported: use side conditions defined in Table 6.6.1.3.3.1.1-1.
4. If beamCorrespondenceWithoutUL-BeamSweeping is NOT supported and beamCorrespondenceSSB-based-r16 and beamCorrespondenceCSI-RS-based-r16 are NOT supported: use side conditions defined in Table 6.6.1.3.3.1.1-1 and Table 6.6.1.3.3.1.1-2.
5. If beamCorrespondenceWithoutUL-BeamSweeping is supported and beamCorrespondenceSSB-based-r16 is supported: use side conditions defined in Table 6.6.1.3.3.1.1-1
6. If beamCorrespondenceWithoutUL-BeamSweeping is supported, and beamCorrespondenceCSI-RS-based-r16 is supported: use side conditions defined in Table 6.6.2.3.3-1
7. If beamCorrespondenceWithoutUL-BeamSweeping is supported and beamCorrespondenceSSB-based-r16 and beamCorrespondenceCSI-RS-based-r16 are supported: use side conditions defined in Table 6.6.1.3.3.1.1-1.
8. If beamCorrespondenceWithoutUL-BeamSweeping is supported and beamCorrespondenceSSB-based-r16 and beamCorrespondenceCSI-RS-based-r16 are NOT supported: use side conditions defined in Table 6.6.1.3.3.1.1-1 and Table 6.6.1.3.3.1.1-2.

K.1.2 RX beam peak direction search

Editor’s note: The following aspects are either missing or not yet determined:

The Rx beam peak direction search for intra-band DL CA configurations with frequency separations larger than 800 MHz is currently FFS.

The RX beam peak direction is found with a 3D EIS scan (separately for each orthogonal downlink polarization). The RX beam peak direction search grid points for this single grid approach are defined in Annex M.2.1. Alternatively, a coarse and fine grid approach could be used according to the definition in Annex M.2.4.

The beam peak searches shall be performed separately for NTC (Normal), ETC (TL), and ETC (TH).

The single carrier measurement procedure includes the following steps:

1) Select any of the three Alignment Options (1, 2, or 3) from Tables N.2-1 through N.2-7 [3] to mount the DUT inside the QZ.

2) Position the DUT in DUT Orientation 1 from Tables N.2-1 through N.2-7 [3].

3) Connect the SS (System Simulator) with the DUT through the measurement antenna with Pol_Link= polarization to form the RX beam towards the DUT. Allow at least BEAM_SELECT_WAIT_TIME for the UE RX beam selection to complete.

4) Determine EIS(Pol_Meas= Pol_Link= for θ-polarization, i.e., by sweeping the power level for the θ-polarization, at which the throughput exceeds the requirements for the specified reference measurement channel. The downlink power step size shall be no more than 0.2 dB when the RF power level is near the sensitivity level (coarse and fine searches are not precluded as long as the fine search is using the 0.2dB step size near the sensitivity level).

5) Connect the SS (System Simulator) with the DUT through the measurement antenna with Pol_Link= polarization to form the RX beam towards the DUT. Allow at least BEAM_SELECT_WAIT_TIME for the UE RX beam selection to complete.

6) Determine EIS(Pol_Meas= Pol_Link= for φ-polarization, i.e., by sweeping the power level for the φ-polarization, at which the throughput exceeds the requirements for the specified reference measurement channel. The downlink power step size shall be no more than 0.2 dB when the RF power level is near the sensitivity level (coarse and fine searches are not precluded as long as the fine search is using the 0.2dB step size near the sensitivity level).

7) Advance to the next grid point and repeat steps 3 through 6 until measurements within zenith range 0^o≤≤90^o have been completed

8) After the measurements within zenith range 0^o≤≤90^o have been completed and

a) if the re-positioning concept is applied to the RX test cases, position the device in DUT Orientation 2 (either Options 1 or 2) from Tables N.2-1 through N.2-7 [3] for the Alignment Option selected in Step 1. For the RX beam peak search in the second hemisphere, perform steps 3 through 6 for the range of zenith angles 90^o>q≥0^o.

b) If the re-positioning concept is not applied to the RX test cases, continue steps 3 through 6 for the range of zenith angles 90^o<≤180^o

9) Calculate the resulting “averaged EIS” as:

averaged EIS = 2*[1/EIS(Pol_Meas= Pol_Link= +1/EIS(Pol_Meas= Pol_Link=]^-1

The RX beam peak direction is where the minimum “averaged EIS” is found.

Alternatively, the RX beam peak direction for single carrier could be determined following the procedure described in Annex K.1.11.

For intra-band DL CA configurations with a frequency separation up to 800 MHz, if for single carrier test the Rx beam peak direction has been found for any frequency within the CA bandwidth, such direction shall be used. Otherwise, the single carrier measurement procedure is performed only on the PCC and the RX beam peak direction for the DL CA configuration is the direction of the PCC Rx beam peak direction.

For intra-band DL CA configurations with a frequency separation up to 800 MHz, if UE vendor provides a Beam Peak Search Declaration with respect to test frequency range for single CC for a given band, see 38.508-2 [4] table A.4.3.9-5, such declaration will also apply to PCC in DL CA configurations for that band.

For intra-band DL CA configurations with a frequency separation larger than 800 MHz the beam peak direction search procedure is FFS.

K.1.3 Peak EIRP measurement procedure

This section describes EIRP measurement procedure for a chosen Pol_Link of or

The TX beam peak direction is where the maximum total component of EIRP is found, including the respective polarization of the measurement antenna used to form the TX beam, according to K.1.1.

The measurement procedure includes the following steps:

1) Select any of the three Alignment Options (1, 2, or 3) from Tables N.2-1 through N.2-7 [3] to mount the DUT inside the QZ.

2) If the re-positioning concept is not applied to the TX test cases, position the device in DUT Orientation 1. If the re-positioning concept is applied to the TX test cases,

a) position the device in DUT Orientation 1 from Tables N.2-1 through N.2-7 [3] if the maximum beam peak direction is within zenith angular range 0^o≤≤90^o for the alignment option selected in step 1

b) position the device in DUT Orientation 2 (either Options 1 or 2) from Tables N.2-1 through N.2-7 [3] if the maximum beam peak direction is within zenith angular range 90^o<≤180^o for DUT Orientation 1 for the alignment option selected in step 1.

3) Connect the SS (System Simulator) with the DUT through the measurement antenna with polarization reference Pol_Link to form the TX beam towards the TX beam peak direction and respective polarization. Allow at least BEAM_SELECT_WAIT_TIME for the UE TX beam selection to complete.

4) SS activates the UE Beamlock Function (UBF) by performing the procedure as specified in TS 38.508-1 [10] clause 4.9.2 using condition Tx only.

5) Measure the mean power P_meas(Pol_Meas= Pol_Link) of the modulated signal arriving at the power measurement equipment (such as a spectrum analyser, power meter, or gNB emulator).

6) Calculate EIRP(Pol_Meas= Pol_Link by adding the composite loss of the entire transmission path for utilized signal path, L_EIRP,θ, and frequency to the measured power P_meas(Pol_Meas= Pol_Link

7) Measure the mean power P_meas (Pol_Meas= Pol_Link) of the modulated signal arriving at the power measurement equipment.

8) Calculate EIRP(Pol_Meas= Pol_Link) by adding the composite losses of the entire transmission path for utilized signal path, L_EIRP,φ and frequency to the measured power P_meas (Pol_Meas= Pol_Link)

9) Calculate the resulting “total EIRP(Pol_Link)”, for the chosen Pol_Link of oras follows:

total EIRP (Pol_Link = EIRP(Pol_Meas= Pol_Link + EIRP(Pol_Meas= Pol_Link

10) SS deactivates the UE Beamlock Function (UBF) by performing the procedure as specified in TS 38.508-1 [10] clause 4.9.3.

K.1.4 Peak EIS measurement procedure

This section describes EIS measurement procedure. The RX beam peak direction is where the minimum EIS is found according to K.1.2.

The measurement procedure includes the following steps:

1) Select any of the three Alignment Options (1, 2, or 3) from Tables N.2-1 through N.2-7 [3] to mount the DUT inside the QZ.

2) If the re-positioning concept is not applied to the RX test cases, position the device in DUT Orientation 1. If the re-positioning concept is applied to the RX test cases

3) Connect the SS (System Simulator) with the DUT through the measurement antenna with Pol_Link= polarization to form the RX beam towards the RX beam peak direction. Allow at least BEAM_SELECT_WAIT_TIME for the UE RX beam selection to complete.

4) Determine EIS(Pol_Meas= Pol_Link= for θ-polarization, i.e., the power level for the θ-polarization at which the throughput exceeds the requirements for the specified reference measurement channel. The downlink power step size shall be no more than 0.2 dB when the RF power level is near the sensitivity level.

5) Connect the SS (System Simulator) with the DUT through the measurement antenna with Pol_Link= polarization to form the RX beam towards the RX beam peak direction. Allow at least BEAM_SELECT_WAIT_TIME for the UE RX beam selection to complete.

6) Determine EIS(Pol_Meas= Pol_Link= for φ-polarization, i.e., the power level for the -polarization at which the throughput exceeds the requirements for the specified reference measurement channel. The downlink power step size shall be no more than 0.2 dB when the RF power level is near the sensitivity level.

7) Calculate the resulting averaged EIS as:

EIS = 2*[1/EIS(Pol_Mes= Pol_Link= +1/EIS(Pol_Meas= Pol_Link=]^-1

K.1.5 EIRP spherical coverage

The EIRP results from the TX beam peak search procedures of K.1.1, using the minimum number of grid points as described in Annex M.2.1 can be re-used for EIRP spherical coverage.

In case a coarse beam peak grid is used for TX beam peak search, using the minimum number of grid points defined in Annex M.3.1.1, the EIRP results can be re-used for EIRP spherical coverage.

K.1.5.0 Tx Spherical Coverage Method

In case a separate test is performed for EIRP spherical coverage, the procedure as per K.1.3 should be followed using the minimum number of grid points defined in Annex M.3.1.1 for spherical coverage.

The EIRP_target-CDF is then obtained from the Cumulative Distribution Function (CDF) computed using maximum(EIRP(Pol_Link=), EIRP(Pol_Link=)) for all grid points. When using constant step size measurement grids, a theta-dependent correction shall be applied, i.e., the PDF probability contribution for each measurement point is scaled by sin(θ) or the normalized Clenshaw-Curtis weights W()/W(90^o), introduced in Section M.4.2.1, to account for the denser grid point distribution near the poles. In case of Clenshaw-Curtis weights, when just a single measurement at the poles is performed, the PDF probability contributions need to be scaled by M*W(θ)/W(θ=90°) to account for the M longitudes at those two grid points. When using constant density grids, these corrections are not needed.

K.1.5.1 Tx Fast Spherical Coverage Method

K.1.5.1.1 Introduction

The Fast Spherical Coverage Method is a test method providing an optimized test time for Tx spherical coverage measurements. This method is applicable to constant density and constant step size grid type. Instead of measuring all grid points as per Annex M, as required by the test procedure defined in Annex K.1.5, this method requires only a reduced number of grid points to be measured.

K.1.5.1.2 Description

To use this method, apply the following steps

1) During the EIRP Spherical coverage measurements, calculate the EIRP result for the grid point as EIRP_spherical = Max(EIRP(Pol_Link= θ), EIRP(Pol_Link= ϕ)) starting with N_{grid, meas, PASS}=0. If the EIRP_spherical value is above the Min EIRP spherical coverage limit increase N_{grid, meas, PASS} by 1.

2) Calculate the percentage of total grid points measured thus far above the EIRP spherical coverage requirement limit N_{grid, meas, PASS} compared to the total number of grid points on the measurement grid N_grid,total.

3) If the percentage calculated in step 2) is equal to or higher than (100 – n^th percentile for EIRP spherical coverage)%, pass the device, otherwise continue to step 4. If all grid points have been measured, calculate the CDF for all grid points and pass the UE if the derived %-tile EIRP in measurement distribution exceeds the requirement. Otherwise fail the UE.

4) Advance to the next grid point and repeat the steps until measurements within zenith range 0º≤ θ ≤[90]º have been completed

NOTE 1: For test systems where the device repositioning approach outlined in Annex N is applied, the grid points of up to a zenith of [90]° are allowed to be measured in the first hemisphere before the device needs to be placed in the second orientation.

K.1.5.1.3 Measurement uncertainties

Same as when test procedure described in clause K.1.5.0 is used.

K.1.6 EIS spherical coverage

The EIS results from the RX beam peak search procedures of K.1.2, using the minimum number of grid points as described in Annex M.2.2 can be re-used for EIS spherical coverage.

In case a coarse beam peak grid is used for RX beam peak search with an EIS metric, using the minimum number of grid points defined in Annex M.3.2.1, the EIS results can be re-used for EIS spherical coverage.

K.1.6.0 Rx Spherical Coverage Method

In case a separate test is performed for spherical coverage, the procedure K.1.4 should be followed using the minimum number of grid points defined in Annex M.3.2.1 for spherical coverage.

The EIS_target-CDF is then obtained from the Cumulative Distribution Function (CDF) computed using averaged EIS for all grid points. When using constant step size measurement grids, a theta-dependent correction shall be applied, i.e., the PDF probability contribution for each measurement point is scaled by sin(θ) or the normalized Clenshaw-Curtis weights W()/W(90^o), introduced in Section M.4.2.1, to account for the denser grid point distribution near the poles. In case of Clenshaw-Curtis weights, when just a single measurement at the poles is performed, the PDF probability contributions need to be scaled by M*W(θ)/W(θ=90°) to account for the M longitudes at those two grid points. When using constant density grids, these corrections are not needed.

K.1.6.1 Rx Fast Spherical Coverage Method

K.1.6.1.1 Introduction

Same as Annex K.1.5.1.2 except that this sub-clause is applicable to Rx measurements in Annex K.1.6.

K.1.6.1.2 Description

To use this method, apply the following steps

1) During the EIS Spherical coverage measurements, calculate the averaged EIS as: EIS = 2*[1/EIS(Pol_Meas= θ Pol_Link= θ) +1/EIS(Pol_Meas= ϕ Pol_Link= ϕ)]^-1 at each grid point starting with N_{grid, meas, PASS}=0. If the EIS value is below the EIS spherical coverage limit increase N_{grid, meas, PASS} by 1.

2) Calculate the percentage of total grid points measured thus far above the EIS spherical coverage requirement limit N_{grid, meas, PASS} compared to the total number of grid points on the measurement grid N_grid,total.

3) If the percentage calculated in step 2) is equal to or higher than (100 – n^th percentile for EIS spherical coverage)%, pass the device, otherwise continue to step 4. If all grid points have been measured, calculate the CDF for all grid points and pass the UE if the derived %-tile EIRP in measurement distribution exceeds the requirement. Otherwise fail the UE.

4) Advance to the next grid point and repeat the steps until measurements within zenith range 0º≤ θ ≤[90]º have been completed.

NOTE 1: Same as NOTE 1 in Annex K.1.5.1.2.

K.1.6.1.3 Measurement uncertainties

Same as when test procedure described in clause K.1.6.0 is used.

K.1.7 TRP measurement procedure

The minimum number of measurement points for TRP measurement grid is outlined in Annex M.4.

The measurement procedure includes the following steps:

1) Select any of the three Alignment Options (1, 2, or 3) from Tables N.2-1 through N.2-7 [3] to mount the DUT inside the QZ.

2) If the re-positioning concept is not applied to the TX test cases, position the device in DUT Orientation 1. If the re-positioning concept is applied to the TX test cases

b) Position de device in DUT Orientation 2 (either Options 1 or 2) from Tables N.2-1 through N.2-7 [3] if the maximum beam peak direction is within zenith angular range 90^o<≤180^o for DUT Orientation 1 for the alignment option selected in step 1.

3) Connect the SS with the DUT through the measurement antenna with desired polarization reference Pol_Link to form the TX beam towards the desired TX beam direction and respective polarization. Allow at least BEAM_SELECT_WAIT_TIME for the UE TX beam selection to complete.

4) SS activates the UE Beamlock Function (UBF) by performing the procedure as specified in TS 38.508-1 [10] clause 4.9.2 using condition Tx only.

5) For each measurement grid point, measure P_meas(Pol_Meas= Pol_Link and P_meas(Pol_Meas= Pol_Link. The angle between the measurement antenna and the DUT (θ_Meas, φ_Meas) is achieved by rotating the measurement antenna and the DUT (based on system architecture).

6) Calculate EIRP(Pol_Meas= Pol_Link and EIRP(Pol_Meas= Pol_Link by adding the composite loss of the entire transmission path for utilized signal paths, L_EIRP,θ, L_EIRP,φ and frequency to the respective measured powers P_meas.

7) The TRP value for the uniform measurement grid is calculated using the TRP integration approaches outlined in Annex M.4.2. The TRP value for the constant density grid is calculated using the TRP integration formula in Annex M.4.3.

8) SS deactivates the UE Beamlock Function (UBF) by performing the procedure as specified in TS 38.508-1 [10] clause 4.9.3.

K.1.8 Blocking measurement procedure

The RX beam peak direction is where the minimum EIS is found according to K.1.2.

The measurement procedure includes the following steps:

1) Select any of the three Alignment Options (1, 2, or 3) from Tables N.2-1 through N.2-7 to mount the DUT inside the QZ.

2) If the re-positioning concept is not applied to the RX test cases, position the device in DUT Orientation 1. If the re-positioning concept is applied to the RX test cases

3) Establish a connection between the DUT and the SS with the downlink signal applied to the θ-polarization of the measurement antenna

4) Position the UE so that the beam is formed towards the measurement antenna in the RX beam peak direction.

5) Apply a signal with the specified reference measurement channel on the θ-polarization, setting the power level of the signal 3dB below the EIS level stated in the requirement.

6) Apply the blocking signal with the same polarization and coming from the same direction as the downlink signal. Set the power level of the blocking signal 3dB below the level stated in the requirement.

7) Measure the throughput of the downlink signal on the θ-polarization.

8) Switch the downlink and blocking signal to the φ-polarization of the measurement antenna.

9) Repeat steps 3 to 7 on the φ-polarization.

10) Compare the results for both the θ-polarization and φ-polarization against the requirement. If both results meet the requirements, pass the UE.

K.1.9 Beam Correspondence tolerance procedure

This beam correspondence tolerance procedure applies to the DUT with beam correspondence capability beamCorrespondenceWithoutUL-BeamSweeping not present (which shall match OEM declaration), such that DUT relies on uplink beam sweeping to fulfil the minimum peak EIRP and spherical coverage requirements.

The measurement procedure includes the following steps for each of the points in the grid:

1) Follow the test procedures specified in subclause K.1.5 with uplink beam sweeping disabled, obtain total EIRP₁(Pol_Link=) and total EIRP₁(Pol_Link=EIRP₁ is calculated by EIRP₁ = maximum(EIRP₁(Pol_Link=), EIRP₁(Pol_Link=).

2) Follow the test procedures specified in subclause K.1.5, with uplink beam sweeping enabled (SS does not configure the spatialRelationInfo to DUT) during DUT TX beam refinement, obtain total EIRP₂(Pol_Link=) and total EIRP₂(Pol_Link=EIRP₂ is calculated by EIRP₂ = maximum(EIRP₂(Pol_Link=), EIRP₂(Pol_Link=).

3) Calculate the ΔEIRP_BC = EIRP₂ – EIRP₁.

The ΔEIRP_target-CDF is then obtained from the Cumulative Distribution Function (CDF) computed using ΔEIRP_BC for each of all top N^th percentile of the EIRP₂ measurement points in the grid. When using constant step size measurement grids, a theta-dependent correction shall be applied, i.e., the PDF probability contribution for each measurement point is scaled by sin(θ) or the normalized Clenshaw-Curtis weights W()/W(90^o), introduced in Section M.4.2.1.

NOTE: ΔEIRP_BC is introduced for beam correspondence tolerance based on two EIRP measurements (EIRP₁ and EIRP₂). EIRP₁ is the measured total EIRP based on the beam which DUT chooses autonomously (corresponding beam) to transmit in the direction of the incoming DL signal, which is based on beam correspondence without relying on UL beam sweeping. EIRP₂ is the measured total EIRP based on the beam yielding highest EIRP in a given direction, which is based on beam correspondence with relying on UL beam sweeping. ΔEIRP_BC shall be calculated over the link angles spanning a subset of the spherical coverage grid points which are corresponding to the top N^th percentile of the EIRP₂ measurement points in the grid, where the value of N is according to EIRP spherical coverage requirement of DUT’s power class defined in TS 38.101-2 [3] clause 6.2.1, e.g., N=50 for power class 3 DUT.

K.1.11 RSRP(B) based RX beam peak search

Editor’s Note: This clause is incomplete. The following aspects are not determined.

Feasibility and Applicability of this RSRP-B based Rx beam peak search is FFS
Additional analysis of side conditions to be applied is FFS
Analysis of MU impact is FFS
Additional optimization of the method for use in scenarios such as Carrier Aggregation and EN-DC is still FFS

RSRP(B)-based RX beam peak search approach is applicable to find the beam peak, the beam peak search time can be reduced significantly.

K.1.11.1 Test procedure

The RX beam peak direction is found with a 3D RSRP(B) scan (separately for each orthogonal downlink polarization). The RX beam peak direction is where the maximum total component of RSRP is found. The RX beam peak direction search grid points for this single grid approach are defined in Annex M,2.

The measurement procedure includes the following steps:

1) Select any of the three Alignment Options (1, 2, or 3) from Tables N.2-1 through N.2-3 [3] to mount the DUT inside the QZ.

2) Position the DUT in DUT Orientation 1 or 2 from Tables N.2-1 through N.2-3 [3].

3) Connect the SS (System Simulator) with the DUT through the measurement antenna with Pol_Link= polarization to form the RX beam towards the measurement antenna.

4) Adjust the DL power of the SS to obtain the NR DL signal level as per Table C.0-1 at the centre of QZ. Determine RSRP or RSRPBs (one per receiver branch) at Pol_Meas=Pol_Link=condition reported by UE.

5) Connect the SS (System Simulator) with the DUT through the measurement antenna with Pol_Link= polarization to form the RX beam towards the measurement antenna.

6) Set the same DL power as the one in step 4. Determine RSRP or RSRPBs (one per receiver branch) at Pol_Meas=Pol_Link=condition reported by UE.

7) Advance to the next grid point and repeat steps 3 through 6 until measurements within the full 3D scan have been completed.

8) Data processing the linear sum of four reported RSRPBs. How to calculate the reported RSRPs is FFS.

To guarantee RSRP(B) accuracy, SNR side condition configuration can refer to the minimum SSB_RP specified for beam correspondence defined in Table K.1.11-1 (from TS 38.101-2 [3] Table 6.6.4.3.1-1):

Table K.1.11.1-1: Conditions for SSB based L1-RSRP measurements for beam correspondence

Angle of arrival	NR operating bands	Minimum SSB_RP^{Note 2}	SSB Ês/Iot
		dBm / SCS_SSB	dB
		SCS_SSB = 120 kHz
All angles^{Note 1}	n257	-96.2	≥6
	n258	-96.2
	n259	-90.7
	n260	-91.9
	n261	-96.2
	n262	-88.5
NOTE 1: For UEs that support multiple FR2 bands, the Minimum SSB_RP values for all angles are increased by MB_S,n, the UE multi-band relaxation factor in dB specified in clause 6.2.1. NOTE 2: Values specified at the radiated requirements reference point to give minimum SSB Ês/Iot, with no applied noise.

K.1.12 Enhanced test method for EIRP measurements

Editor’s Note: This clause is incomplete. The following aspects are not determined.

Applicability of this enhanced method is FFS
Additional analysis of how this method can be used within existing tests is FFS
Additional optimization of the method for use in scenarios such as Carrier Aggregation and EN-DC is still FFS

Transmitted Matrix Precoding Indicator (TPMI) is the basis of codebook based transmission enabling multi-port antenna transmission. TPMI method is identified as applicable method to enhance EIRP measurement, which is able to activate dual polarization transmission in EIRP measurement. The applicability of this method is defined in Clause K.1.12.1.

For FR2 UEs support the TPMI method, the precoding matrix is given by Table K.1.12-1 (same as Table 6.3.1.5-1 in TS 38.211 [9]). 2Tx TPMI index 2-5 can force UE single-layer transmission using two antenna ports. Among them, only TPMI index 2 is selected for EIRP measurement.

Table K.1.12-1-1: Precoding matrix for single-layer transmission using two antenna ports

TPMI index

(ordered from left to right in increasing order of TPMI index)

0 – 5

–

The permitted test methods (i.e. DFF, IFF and NFTF) in [5] are all applicable for TPMI method with the additional procedure that the UE should be configured with TPMI index and working at single-layer transmission using two antenna ports, before performing EIRP-based test procedures in Clause 5.2.1.3 in TR38.810 [5].:

– Peak EIRP Measurement Procedure

– TRP Measurement Procedure

– TX Beam Peak direction search and EIRP Spherical Coverage

K.1.12.1 Applicability of TPMI side condition method

TPMI is applicable for one layer transmission with multi-port antenna. In FR2, dual polarization can be regarded as dual antenna ports, so it is natural to activate dual polarization transmission with TPMI side condition in EIRP measurement procedure. However, for TPMI supporting dual antenna ports, the number of SRS ports (nrofSRS-Ports) is configured as 2 for both one layer transmission with ‘full power transmission’ and two layers transmission with regular UL MIMO, as specified in clause 6.1 of TS 38.101-2 [3]:

For a UE that supports ‘UL full power transmission’ and is configured to transmit a single layer with nrofSRS-Ports = 2, the requirements for UL MIMO operation apply only when it is configured for any of its declared full power modes in IE FullPowerTransmission-r16 (as defined in TS 38.331[19]).

For a UE configured to transmit 2 layers, transmitter requirements for UL MIMO operation apply when the UE transmits on 2 ports on the same CDM group. The UE may use higher MPR values outside this limitation.

Thus, TPMI method is applicable for the following FR2 UEs:

– Rel-15 Coherent UE (UE capability pusch-TransCoherence = fullCoherent with network configuration codebookSubset= FullyAndPartialAndNonCoherent).

– Rel-16 and onwards Coherent UE (UE capability pusch-TransCoherence = fullCoherent with network configuration codebookSubset= FullyAndPartialAndNonCoherent).

– Rel-16 and onwards UE supporting UL full power transmission mode1 (UE capability ul-FullPwrMode1-r16= supported with network configuration ul-FullPowerTransmission = fullpowerMode1).

Other UEs are not applicable for TPMI based test method.

K.1.12.2 TPMI side condition method Measurement uncertainties impact

TPMI side condition method has no impact on measurement uncertainties.