System Description

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Issued Date
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Feb. 14, 2020
Form version: 181113
FCC SAR TEST REPORT
Report No. : FA9O2119
<LTE Conducted Power>
General Note:
1. Anritsu MT8820C base station simulator was used to setup the connection with EUT; the frequency band, channel
bandwidth, RB allocation configuration, modulation type are set in the base station simulator to configure EUT
transmitting at maximum power and at different configurations which are requested to be reported to FCC, for
conducted power measurement and SAR testing.
2. Per KDB 941225 D05v02r05, when a properly configured base station simulator is used for the SAR and power
measurements, spectrum plots for each RB allocation and offset configuration is not required.
3. Per KDB 941225 D05v02r05, start with the largest channel bandwidth and measure SAR for QPSK with 1 RB
allocation, using the RB offset and required test channel combination with the highest maximum output power for RB
offsets at the upper edge, middle and lower edge of each required test channel.
4. Per KDB 941225 D05v02r05, 50% RB allocation for QPSK SAR testing follows 1RB QPSK allocation procedure.
5. Per KDB 941225 D05v02r05, For QPSK with 100% RB allocation, SAR is not required when the highest maximum
output power for 100 % RB allocation is less than the highest maximum output power in 50% and 1 RB allocations and
the highest reported SAR for 1 RB and 50% RB allocation are ≤ 0.8 W/kg. Otherwise, SAR is measured for the highest
output power channel; and if the reported SAR is > 1.45 W/kg, the remaining required test channels must also be
tested.
6. Per KDB 941225 D05v02r05, 16QAM output power for each RB allocation configuration is > not ½ dB higher than the
same configuration in QPSK and the reported SAR for the QPSK configuration is ≤ 1.45 W/kg; Per KDB 941225
D05v02r05, 16QAM SAR testing is not required.
7. Per KDB 941225 D05v02r05, Smaller bandwidth output power for each RB allocation configuration is > not ½ dB
higher than the same configuration in the largest supported bandwidth, and the reported SAR for the largest supported
bandwidth is ≤ 1.45 W/kg; Per KDB 941225 D05v02r05, smaller bandwidth SAR testing is not required.
8. For LTE B12/26/38 the maximum bandwidth does not support three non-overlapping channels, per KDB 941225
D05v02r05, when a device supports overlapping channel assignment in a channel bandwidth configuration, the middle
channel of the group of overlapping channels should be selected for testing.
9. LTE band 2/5/4/17 SAR test was covered by Band 25/26/66/12; according to April 2015 TCB workshop, SAR test for
overlapping LTE bands can be reduced if
a. the maximum output power, including tolerance, for the smaller band is ≤ the larger band to qualify for the SAR
test exclusion
b. the channel bandwidth and other operating parameters for the smaller band are fully supported by the larger
band
10. According to 2017 TCB workshop, for 64 QAM and 16 QAM should be verified by checking the signal constellation with
a call box to avoid incorrect maximum power levels due to MPR and other requirements associated with signal
modulation, and the following figure is taken from the "Fundamental Measurement >> Modulation Analysis >>
constellation" mode of the device connect to the MT8821C base station, therefore, the device 64QAM and 16QAM
signal modulation are correct.
64QAM
16QAM