I18Z60072-SEM01_SAR_Rev1_Part2

FCC ID: 2ACCJB102

RF Exposure Info

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FCCID_3805835

No. I18Z60072-SEM01 Page 18 of 157 8.2 System Verification SAR system verification is required to confirm measurement accuracy, according to the tissue dielectric media, probe calibration points and other system operating parameters required for measuring the SAR of a test device. The system verification must be performed for each frequency band and within the valid range of each probe calibration point required for testing the device. The system verification results are required that the area scan estimated 1-g SAR is within 3% of the zoom scan 1-g SAR. The details are presented in annex B. Table 8.1: System Verification of Head Measurement Measured value Target value (W/kg) Deviation Date (W/kg) Frequency (yyyy-mm- 10 g 1g 10 g 1g 10 g 1g dd) Average Average Average Average Average Average 2018/3/5 835 MHz 6.06 9.37 6.08 9.4 0.33% 0.32% 2018/3/6 1750 MHz 19.4 36.7 19.72 36.68 1.65% -0.05% 2018/3/7 1900 MHz 21.0 40.0 21.24 39.32 1.14% -1.70% 2018/3/8 2450 MHz 24.7 52.2 24.6 51.2 -0.40% -1.92% Table 8.2: System Verification of Body Measurement Measured value Target value (W/kg) Deviation Date (W/kg) Frequency (yyyy-mm- 10 g 1g 10 g 1g 10 g 1g dd) Average Average Average Average Average Average 2018/3/5 835 MHz 6.12 9.41 6.08 9.56 -0.65% 1.59% 2018/3/6 1750 MHz 19.8 37.1 19.68 37.36 -0.61% 0.70% 2018/3/7 1900 MHz 21.5 40.5 21.4 39.8 -0.47% -1.73% 2018/3/8 2450 MHz 23.8 50.4 23.6 50.28 -0.84% -0.24% ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 19 of 157 9 Measurement Procedures 9.1 Tests to be performed In order to determine the highest value of the peak spatial-average SAR of a handset, all device positions, configurations and operational modes shall be tested for each frequency band according to steps 1 to 3 below. A flowchart of the test process is shown in picture 9.1. Step 1: The tests described in 9.2 shall be performed at the channel that is closest to the center of the transmit frequency band ( f c ) for: a) all device positions (cheek and tilt, for both left and right sides of the SAM phantom, as described in annex D), b) all configurations for each device position in a), e.g., antenna extended and retracted, and c) all operational modes, e.g., analogue and digital, for each device position in a) and configuration in b) in each frequency band. If more than three frequencies need to be tested according to 11.1 (i.e., Nc > 3), then all frequencies, configurations and modes shall be tested for all of the above test conditions. Step 2: For the condition providing highest peak spatial-average SAR determined in Step 1, perform all tests described in 9.2 at all other test frequencies, i.e., lowest and highest frequencies. In addition, for all other conditions (device position, configuration and operational mode) where the peak spatial-average SAR value determined in Step 1 is within 3 dB of the applicable SAR limit, it is recommended that all other test frequencies shall be tested as well. Step 3: Examine all data to determine the highest value of the peak spatial-average SAR found in Steps 1 to 2. ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 20 of 157 Picture 9.1 Block diagram of the tests to be performed ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 21 of 157 9.2 General Measurement Procedure The area and zoom scan resolutions specified in the table below must be applied to the SAR measurements and fully documented in SAR reports to qualify for TCB approval. Probe boundary effect error compensation is required for measurements with the probe tip closer than half a probe tip diameter to the phantom surface. Both the probe tip diameter and sensor offset distance must satisfy measurement protocols; to ensure probe boundary effect errors are minimized and the higher fields closest to the phantom surface can be correctly measured and extrapolated to the phantom surface for computing 1-g SAR. Tolerances of the post-processing algorithms must be verified by the test laboratory for the scan resolutions used in the SAR measurements, according to the reference distribution functions specified in IEEE Std 1528-2013. The results should be documented as part of the system validation records and may be requested to support test results when all the measurement parameters in the following table are not satisfied. ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 22 of 157 9.3 WCDMA Measurement Procedures for SAR The following procedures are applicable to WCDMA handsets operating under 3GPP Release99, Release 5 and Release 6. The default test configuration is to measure SAR with an established radio link between the DUT and a communication test set using a 12.2kbps RMC (reference measurement channel) configured in Test Loop Mode 1. SAR is selectively confirmed for other physical channel configurations (DPCCH & DPDCHn), HSDPA and HSPA (HSUPA/HSDPA) modes according to output power, exposure conditions and device operating capabilities. Both uplink and downlink should be configured with the same RMC or AMR, when required. SAR for Release 5 HSDPA and Release 6 HSPA are measured using the applicable FRC (fixed reference channel) and E-DCH reference channel configurations. Maximum output power is verified according to applicable versions of 3GPP TS 34.121 and SAR must be measured according to these maximum output conditions. When Maximum Power Reduction (MPR) is not implemented according to Cubic Metric (CM) requirements for Release 6 HSPA, the following procedures do not apply. For Release 5 HSDPA Data Devices: Sub-test c d  d （SF） c /  d  hs CM/dB 1 2/15 15/15 64 2/15 4/15 0.0 2 12/15 15/15 64 12/15 24/25 1.0 3 15/15 8/15 64 15/8 30/15 1.5 4 15/15 4/15 64 15/4 30/15 1.5 For Release 6 HSPA Data Devices d  ed  ed c c / d  hs  ec  ed Sub- CM MPR AG E- test d (dB) (dB) Index TFCI （SF） （SF） （codes） 1 11/15 15/15 64 11/15 22/15 209/225 1039/225 4 1 1.5 1.5 20 75 2 6/15 15/15 64 6/15 12/15 12/15 12/15 4 1 1.5 1.5 12 67  ed 1 :47/15 3 15/15 9/15 64 15/9 30/15 30/15 4 2 1.5 1.5 15 92 ed 2 :47/15 4 2/15 15/15 64 2/15 4/15 4/15 56/75 4 1 1.5 1.5 17 71 5 15/15 15/15 64 15/15 24/15 30/15 134/15 4 1 1.5 1.5 21 81 Rel.8 DC-HSDPA (Cat 24) SAR test exclusion for Rel.8 DC-HSDPA must satisfy the SAR test exclusion requirements of Rel.5 HSDPA. SAR test exclusion for DC-HSDPA devices is determined by power measurements according to the H-Set 12, Fixed Reference Channel (FRC) configuration in Table C.8.1.12 of 3GPP TS 34.121-1. A primary and a secondary serving HS-DSCH Cell are required to perform the power measurement and for the results to qualify for SAR test exclusion. ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 23 of 157 9.4 Bluetooth & Wi-Fi Measurement Procedures for SAR Normal network operating configurations are not suitable for measuring the SAR of 802.11 transmitters in general. Unpredictable fluctuations in network traffic and antenna diversity conditions can introduce undesirable variations in SAR results. The SAR for these devices should be measured using chipset based test mode software to ensure that the results are consistent and reliable. Chipset based test mode software is hardware dependent and generally varies among manufacturers. The device operating parameters established in a test mode for SAR measurements must be identical to those programmed in production units, including output power levels, amplifier gain settings and other RF performance tuning parameters. The test frequencies should correspond to actual channel frequencies defined for domestic use. SAR for devices with switched diversity should be measured with only one antenna transmitting at a time during each SAR measurement, according to a fixed modulation and data rate. The same data pattern should be used for all measurements. 9.5 Power Drift To control the output power stability during the SAR test, DASY4 system calculates the power drift by measuring the E-field at the same location at the beginning and at the end of the measurement for each test position. These drift values can be found in section 14 labeled as: (Power Drift [dB]). This ensures that the power drift during one measurement is within 5%. ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 24 of 157 10 Area Scan Based 1-g SAR 10.1 Requirement of KDB According to the KDB447498 D01 v05, when the implementation is based the specific polynomial fit algorithm as presented at the 29th Bioelectromagnetics Society meeting (2007) and the estimated 1-g SAR is ≤ 1.2 W/kg, a zoom scan measurement is not required provided it is also not needed for any other purpose; for example, if the peak SAR location required for simultaneous transmission SAR test exclusion can be determined accurately by the SAR system or manually to discriminate between distinctive peaks and scattered noisy SAR distributions from area scans. There must not be any warning or alert messages due to various measurement concerns identified by the SAR system; for example, noise in measurements, peaks too close to scan boundary, peaks are too sharp, spatial resolution and uncertainty issues etc. The SAR system verification must also demonstrate that the area scan estimated 1-g SAR is within 3% of the zoom scan 1-g SAR (See Annex B). When all the SAR results for each exposure condition in a frequency band and wireless mode are based on estimated 1-g SAR, the 1-g SAR for the highest SAR configuration must be determined by a zoom scan. 10.2 Fast SAR Algorithms The approach is based on the area scan measurement applying a frequency dependent attenuation parameter. This attenuation parameter was empirically determined by analyzing a large number of phones. The MOTOROLA FAST SAR was developed and validated by the MOTOROLA Research Group in Ft. Lauderdale. In the initial study, an approximation algorithm based on Linear fit was developed. The accuracy of the algorithm has been demonstrated across a broad frequency range (136-2450 MHz) and for both 1- and 10-g averaged SAR using a sample of 264 SAR measurements from 55 wireless handsets. For the sample size studied, the root-mean-squared errors of the algorithm are 1.2% and 5.8% for 1- and 10-g averaged SAR, respectively. The paper describing the algorithm in detail is expected to be published in August 2004 within the Special Issue of Transactions on MTT. In the second step, the same research group optimized the fitting algorithm to an Polynomial fit whereby the frequency validity was extended to cover the range 30-6000MHz. Details of this study can be found in the BEMS 2007 Proceedings. Both algorithms are implemented in DASY software. ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 25 of 157 11 Conducted Output Power 11.1 GSM Measurement result During the process of testing, the EUT was controlled via Agilent Digital Radio Communication tester (E5515C) to ensure the maximum power transmission and proper modulation. This result contains conducted output power for the EUT. In all cases, the measured peak output power should be greater and within 5% than EMI measurement. Note：The #1 is normal power (Hotspot off) The #2 is low power (Hotspot on) Table 11-1 GSM850 #1 Table 11-2 PCS1900 #1 ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 26 of 157 Table 11-3 PCS1900 #2 NOTES: Division Factors To average the power, the division factor is as follows: 1TX-slot = 1 transmit time slot out of 8 time slots=> conducted power divided by (8/1) => -9.03dB 2TX-slots = 2 transmit time slots out of 8 time slots=> conducted power divided by (8/2) => -6.02dB 3TX-slots = 3 transmit time slots out of 8 time slots=> conducted power divided by (8/3) => -4.26dB 4TX-slots = 4 transmit time slots out of 8 time slots=> conducted power divided by (8/4) => -3.01dB According to the conducted power as above, the body measurements are performed with 4Txslots for 850MHz and 1900MHz #1, 3Txslots for 1900MHz #2. 11.2 WCDMA Measurement result Table 11-4 WCDMA1900-BII #1 Table 11-5 WCDMA1900-BII #2 ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 27 of 157 Table 11-6 WCDMA1700-BIV #1 Table 11-7 WCDMA1700-BIV #2 Table 11-8 WCDMA850-BV #1 11.3 Wi-Fi and BT Measurement result Table 11-9 Bluetooth Power ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 28 of 157 Table 11-10 WLAN2450 #1 ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 29 of 157 ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 30 of 157 12 Simultaneous TX SAR Considerations 12.1 Introduction The following procedures adopted from “FCC SAR Considerations for Cell Phones with Multiple Transmitters” are applicable to handsets with built-in unlicensed transmitters such as 802.11 a/b/g and Bluetooth devices which may simultaneously transmit with the licensed transmitter. For this device, the BT and Wi-Fi can transmit simultaneous with other transmitters. 12.2 Transmit Antenna Separation Distances Picture 12.1 Antenna Locations ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 31 of 157 12.3 SAR Measurement Positions According to the KDB941225 D06 Hot Spot SAR v01, the edges with less than 2.5 cm distance to the antennas need to be tested for SAR. SAR measurement positions Mode Front Rear Left edge Right edge Top edge Bottom edge Main antenna Yes Yes Yes Yes No Yes WLAN Yes Yes No Yes Yes No 12.4 Standalone SAR Test Exclusion Considerations Standalone 1-g head or body SAR evaluation by measurement or numerical simulation is not required when the corresponding SAR Exclusion Threshold condition, listed below, is satisfied. The 1-g SAR test exclusion threshold for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR, where  f(GHz) is the RF channel transmit frequency in GHz  Power and distance are rounded to the nearest mW and mm before calculation  The result is rounded to one decimal place for comparison Table 12.1: Standalone SAR test exclusion considerations SAR test RF output power exclusion SAR test Band/Mode F(GHz) Position threshold dBm mW exclusion (mW) Head 9.6 5 3.16 Yes Bluetooth 2.441 Body 9.6 5 3.16 Yes Head 9.58 16.5 44.67 No 2.4GHz WLAN 802.11 b 2.45 Body 9.58 16.5 44.67 No ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 32 of 157 13 Evaluation of Simultaneous Table 13.1: The sum of reported SAR values for main antenna and WiFi Position Main antenna WiFi Sum Highest reported SAR value for Right hand, Touch cheek 0.29 0.55 0.84 Head Highest reported SAR value for Rear 0.95 0.13 1.08 Body Table 13.2: The sum of reported SAR values for main antenna and BT Position Main antenna BT Sum Maximum reported Left hand, Touch cheek 0.32 0.13 0.45 SAR value for Head Maximum reported Rear 0.95 0.07 1.02 SAR value for Body [1] - Estimated SAR for Bluetooth (see the table 13.3) Table 13.3: Estimated SAR for Bluetooth Distance Upper limit of power * Estimated1g Mode/Band F (GHz) Position (mm) dBm mW (W/kg) Bluetooth 2.441 Head 5 5 3.16 0.13 Bluetooth 2.441 Body 10 5 3.16 0.07 * - Maximum possible output power declared by manufacturer When standalone SAR test exclusion applies to an antenna that transmits simultaneously with other antennas, the standalone SAR must be estimated according to following to determine simultaneous transmission SAR test exclusion: (max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHz)/x] W/kg for test separation distances ≤ 50 mm; where x = 7.5 for 1-g SAR. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion Conclusion: According to the above tables, the sum of reported SAR values is<1.6W/kg. So the simultaneous transmission SAR with volume scans is not required. ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 33 of 157 14 SAR Test Result It is determined by user manual for the distance between the EUT and the phantom bottom. The distance is 10 or 15mm and just applied to the condition of body worn accessory. It is performed for all SAR measurements with area scan based 1-g SAR estimation (Fast SAR). A zoom scan measurement is added when the estimated 1-g SAR is the highest measured SAR in each exposure configuration, wireless mode and frequency band combination or more than 1.2W/kg. The calculated SAR is obtained by the following formula: Reported SAR = Measured SAR × 10(PTarget −PMeasured )⁄10 Where PTarget is the power of manufacturing upper limit; PMeasured is the measured power in chapter 11. Mode Duty Cycle Speech for GSM850/1900 1:8.3 GPRS&EGPRS for GSM850/1900 #1 1:2 GPRS&EGPRS for GSM1900 #2 1:2.67 WCDMA&LTE 1:1 14.1 Evaluation of multi-batteries Note: B1: CAC2400008C1 B2: CAC2400009C7 We’ll perform the head measurement in all bands with the primary battery depending on the evaluation of multi-batteries retest on highest value point with other battery. Then, repeat the measurement in the Body test. frequency 1g SAR Mode/Band Side Position BatteryType PowerDrift MHz Channel (W/kg) 848.8 251 GSM850 Right Cheek CAC2400008C1 0.224 -0.01 848.8 251 GSM850 Right Cheek CAC2400009C7 0.269 -0.03 Note: According to the values in the above table, the battery, B2, is the primary battery. We’ll perform the head measurement with this battery and retest on highest value point with others. frequency 1g SAR Mode/Band Position BatteryType PowerDrift MHz Channel (W/kg) 1712.4 1312 WCDMA1700 Rear 10mm CAC2400008C1 0.418 0.01 1712.4 1312 WCDMA1700 Rear 10mm CAC2400009C7 0.424 0.02 Note: According to the values in the above table, the battery, B2, is the primary battery. We’ll perform the Body measurement with this battery and retest on highest value point with others. ©Copyright. All rights reserved by CTTL.

No. I18Z60072-SEM01 Page 34 of 157 14.2 SAR results Note：H1：CCB0046A10C1 H2：CCB0046A10C4 Table 14-1 GSM850 #1 Head Table 14-2 GSM850 #1 Body ©Copyright. All rights reserved by CTTL.


Document Created: 2018-04-04 09:44:24
Document Modified: 2018-04-04 09:44:24
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