M.4.1 UE Power Classes
38.521-23GPPNRPart 2: Range 2 StandaloneRadio transmission and receptionRelease 17TSUser Equipment (UE) conformance specification
M.4.1.1 Power class 1 devices
In order to make a reasonable trade-off between measurement uncertainties, at least the following number of points shall be included in the measurement grid for TRP measurements PC1 UEs based on the assumption that the standard deviation does not exceed 0.25dB. If the re-positioning concept is not applied to TRP test cases:
– 500 measurement grid points for constant density grid – Charged Particle implementation, with standard deviation of 0.25 dB
– 25 latitudes and 48 longitudes (1106 unique grid points) for constant step size grid – sin (theta) weights integration approach, with standard deviation of 0.10dB with the allowance to skip and interpolate measurements at the pole at =180o, see Annex M.4.4
– 25 latitudes and 48 longitudes (1106 unique grid points) for constant step size grid – Clenshaw Curtis weights integration approach, with standard deviation of 0.07dB with the allowance to skip and interpolate measurements at the pole at =180o, see Annex M.4.4
If the re-positioning concept is applied to TRP test cases:
– 500 measurement grid points for constant density grid – Charged Particle implementation, with standard deviation of 0.25 dB with the allowance to skip and interpolate measurements for ≥150o, see Annex M.4.4
– 25 latitudes and 48 longitudes (1106 unique grid points) for constant step size grid – sin (theta) weights integration approach, with standard deviation of 0.09dB with the allowance to skip and interpolate measurements for ≥157.5o, see Annex M.4.4
– 25 latitudes and 48 longitudes (1106 unique grid points) for constant step size grid – Clenshaw-Curtis weights integration approach, with standard deviation of 0.03dB with the allowance to skip and interpolate measurements for ≥157.5o, see Annex M.4.4
– 21 latitudes and 40 longitudes (762 unique grid points) for constant step size grid – Clenshaw Curtis weights integration approach, with standard deviation of 0.24 dB with the allowance to skip and interpolate measurements for ≥153o, see Annex M.4.4
M.4.1.2 Power class 2 devices
TBD
M.4.1.3 Power class 3 devices
In order to make a reasonable trade-off between measurement uncertainties, at least the following number of points should be included in the measurement grid for TRP measurements for non-sparse antenna arrays case. If the re-positioning concept is not applied to TRP test cases:
– 135 measurement grid points for constant density grid – Charged Particle implementation, with standard deviation of 0.23 dB.
– 12 latitudes and 19 longitudes for constant step size grid – sin (theta) weights integration approach, with standard deviation of 0.25dB with the allowance to skip and interpolate measurements at the pole at =180o.
– 12 latitudes and 19 longitudes for constant step size grid – Clenshaw Curtis weights integration approach, with standard deviation of 0.20 dB with the allowance to skip and interpolate measurements at the pole at =180o.
If the re-positioning concept is applied to TRP test cases:
– 135 measurement grid points for constant density grid – Charged Particle implementation, with standard deviation of 0.23 dB with the allowance to skip and interpolate measurements for ≥165o, see Annex M.4.4
– 150 measurement grid points for constant density grid – Charged Particle implementation, with standard deviation of 0.25 dB with the allowance to skip and interpolate measurements for ≥150o, see Annex M.4.4
– 12 latitudes and 19 longitudes for constant step size grid – sin (theta) weights integration approach, with standard deviation of 0.25dB with the allowance to skip and interpolate measurements the at pole at =180o, see Annex M.4.4
– 12 latitudes and 19 longitudes for constant step size grid – Clenshaw Curtis weights integration approach, with standard deviation of 0.20 dB with the allowance to skip and interpolate measurements the at pole at =180o, see Annex M.4.4
– 13 latitudes and 24 longitudes for constant step size grid – sin (theta) weights integration approach, with standard deviation of 0.21dB with the allowance to skip and interpolate measurements for ≥165o, see Annex M.4.4
– 13 latitudes and 24 longitudes for constant step size grid – Clenshaw Curtis weights integration approach, with standard deviation of 0.15 dB with the allowance to skip and interpolate measurements for ≥165o, see Annex M.4.4.
Choice of grid(s) among above 3 types of grids is up to test system implementation.
Based on an optional vendor declaration with respect to the antenna array configuration, devices with an M x N (M ≥ N) configuration with M ≤ 4 and N ≤ 2 can utilize either of the following minimum number of grid points for TRP procedures without the repositioning approach:
– 50 measurement grid points for constant density grid – Charged Particle implementation, with standard deviation of 0.14 dB.
– 80 measurement grid points for constant density grid – Charged Particle implementation, with standard deviation of 0.23 dB. with the allowance to skip and interpolate measurements for ≥165o, see Annex M.4.4.
– 8 latitudes and 14 longitudes (84 unique number of grid points) for constant step size grid – sin (theta) weights integration approach, with standard deviation of 0.25dB with the allowance to skip and interpolate measurements at the pole at =180o.
– 8 latitudes and 14 longitudes (84 unique number of grid points) for constant step size grid – Clenshaw Curtis weights integration approach, with standard deviation of 0.20 dB with the allowance to skip and interpolate measurements at the pole at =180o.
Either of the following minimum number of grid points for TRP procedures apply if the re-positioning is applied:
– 50 measurement grid points for constant density grid – Charged Particle implementation, with standard deviation of 0.14 dB with the allowance to skip and interpolate measurements for ≥150o, see Annex M.4.4.
– 7 latitudes and 12 longitudes (62 unique number of grid points) for constant step size grid – Clenshaw Curtis weights integration approach, with standard deviation of 0.20 dB with the allowance to skip and interpolate measurements the at pole at =180o, see Annex M.4.4.
– 8 latitudes and 14 longitudes (86 unique number of grid points) for constant step size grid – sin (theta) weights integration approach, with standard deviation of 0.25dB with the allowance to skip and interpolate measurements for ≥154.29o, see Annex M.4.4.
– 8 latitudes and 14 longitudes (86 unique number of grid points) for constant step size grid – Clenshaw Curtis weights integration approach, with standard deviation of 0.09 dB with the allowance to skip and interpolate measurements for ≥128.58o, see Annex M.4.4.
Choice of grid(s) among above 3 types of grids is up to test system implementation.
M.4.1.4 Power class 4 devices
TBD