TCL Communication Ltd. B221 2ACCJB221 2ACCJB221 b221
FCC PART 15 TEST REPORT No.24T04Z101045-019 for TCL Communication Ltd. Tablet PC 9491G FCC ID: 2ACCJB221 with Hardware Version: 05 Software Version: 1AS0 Issued Date: 2024-06-01 Note: The test results in this test report relate only to the devices specified in this report. This report shall not be reproduced except in full without the written approval of CTTL. Test Laboratory: CTTL-Telecommunication Technology Labs, CAICT No. 52, Huayuan North Road, Haidian District, Beijing, P. R. China 100191. Tel:+86(0)10-62304633-2512, Fax:+86(0)10-62304633-2504 Email: cttl_terminals@caict.ac.cn, website: www.caict.ac.cn ©Copyright. All rights reserved by CTTL. No. 24T04Z101045-019 REPORT HISTORY Report Number 24T04Z101045-019 Revision Rev.0 Description 1st edition Issue Date 2024-06-01 Note: the latest revision of the test report supersedes all previous version. ©Copyright. All rights reserved by CTTL. Page 2 of 16 No. 24T04Z101045-019 CONTENTS CONTENTS ..................................................................................................................................................... 3 1. TEST LABORATORY ................................................................................................................................4 1.1. INTRODUCTION & ACCREDITATION .........................................................................................................4 1.2. TESTING LOCATION ................................................................................................................................. 4 1.3. TESTING ENVIRONMENT ......................................................................................................................... 4 1.4. PROJECT DATE ......................................................................................................................................... 4 1.5. SIGNATURE .............................................................................................................................................. 4 2. CLIENT INFORMATION ......................................................................................................................... 5 2.1. APPLICANT INFORMATION .......................................................................................................................5 2.2. MANUFACTURER INFORMATION ..............................................................................................................5 3. EQUIPMENT UNDER TEST (EUT) AND ANCILLARY EQUIPMENT (AE) .................................. 6 3.1. ABOUT EUT ............................................................................................................................................ 6 3.2. INTERNAL IDENTIFICATION OF EUT USED DURING THE TEST ................................................................ 6 3.3. GENERAL DESCRIPTION .......................................................................................................................... 6 4. REFERENCE DOCUMENTS ................................................................................................................... 7 4.1. DOCUMENTS SUPPLIED BY APPLICANT ................................................................................................... 7 4.2. REFERENCE DOCUMENTS FOR TESTING ..................................................................................................7 5. LABORATORY ENVIRONMENT ........................................................................................................... 7 6. TEST RESULTS .......................................................................................................................................... 7 6.1. SUMMARY OF TEST RESULTS .................................................................................................................. 7 6.2. STATEMENTS ............................................................................................................................................7 6.3. TEST CONDITIONS ................................................................................................................................... 8 7. TEST FACILITIES UTILIZED ................................................................................................................ 8 ANNEX A: DETAILED TEST RESULTS .................................................................................................... 9 A.1. MEASUREMENT METHOD .......................................................................................................................9 A.2. CHANNEL MOVE TIME AND CHANNEL CLOSING TRANSMISSION TIME ................................................. 11 A.3.NON-OCCUPANCY PERIOD ..................................................................................................................14 A3.1 ASSOCIATED TEST ................................................................................................................................14 A.4. ANTENNA REQUIREMENT .................................................................................................................... 15 ANNEX B: EUT PARAMETERS ................................................................................................................15 ANNEX C: ACCREDITATION CERTIFICATE ...................................................................................... 16 ©Copyright. All rights reserved by CTTL. Page 3 of 16 No. 24T04Z101045-019 1. Test Laboratory 1.1. Introduction & Accreditation Telecommunication Technology Labs, CAICT is an ISO/IEC 17025:2017 accredited test laboratory under American Association for Laboratory Accreditation (A2LA) with lab code 7049.01, and is also an FCC accredited test laboratory (CN1349), and ISED accredited test laboratory (CAB identifier:CN0066). The detail accreditation scope can be found on A2LA website. 1.2. Testing Location Conducted testing Location: CTTL(Huayuan North Road) Address: No. 52, Huayuan North Road, Haidian District, Beijing, P. R. China100191 1.3. Testing Environment Normal Temperature: 15-35°C Relative Humidity: 20-75% 1.4. Project date Testing Start Date: Testing End Date: 2024-05-10 2024-05-30 1.5. Signature Yao Xingyu (Prepared this test report) Zheng Wei (Reviewed this test report) Pang Shuai (Approved this test report) ©Copyright. All rights reserved by CTTL. Page 4 of 16 No. 24T04Z101045-019 2. Client Information 2.1. Applicant Information Company Name: TCL Communication Ltd. Address/Post: 5/F, Building 22E, 22 Science Park East Avenue, Hong Kong Science Park, Shatin, NT, Hong Kong City: Hong Kong Postal Code: / Country: China Contact Person: Ting Wang Contact Email: ting.wang.hz@tcl.com Telephone: +86 755 3661 1621 Fax: 0086-755-36612000-81722 2.2. Manufacturer Information Company Name: TCL Communication Ltd. Address/Post: 5/F, Building 22E, 22 Science Park East Avenue, Hong Kong Science Park, Shatin, NT, Hong Kong City: Hong Kong Postal Code: / Country: China Contact Person: Ting Wang Contact Email: ting.wang.hz@tcl.com Telephone: +86 755 3661 1621 Fax: 0086-755-36612000-81722 ©Copyright. All rights reserved by CTTL. Page 5 of 16 No. 24T04Z101045-019 3. Equipment Under Test (EUT) and Ancillary Equipment (AE) 3.1. About EUT Description Model name FCC ID WLAN Frequency Band Type of modulation Antenna Extreme vol. Limits Device Type (DFS) TPC mechanism Antenna gain Nominal Voltage Extreme High Voltage Extreme Low Voltage Tablet PC 9491G 2ACCJB221 ISM Band: -5250MHz~5350MHz -5470MHz~5725MHz OFDM Integral Antenna 3.5V Client without radar detection(only support client mode) Not support 0.8dBi 3.9V 4.45V 3.45V 3.2. Internal Identification of EUT used during the test EUT ID* S/N HW Version SW Version UT02a USQC6DAMYXFA79CU 05 1AS0 *EUT ID: is used to identify the test sample in the lab internally. Date of receipt 2024-05-11 3.3. General Description The Equipment Under Test (EUT) is a model of Tablet PC with integrated antenna. It consists of normal options: lithium battery, charger. Manual and specifications of the EUT were provided to fulfil the test. ©Copyright. All rights reserved by CTTL. Page 6 of 16 No. 24T04Z101045-019 4. Reference Documents 4.1. Documents supplied by applicant EUT feature information is supplied by the applicant or manufacturer, which is the basis of testing. 4.2. Reference Documents for testing The following documents listed in this section are referred for testing. FCC Part15 FCC CFR 47, Part 15, Subpart E: 15.407 General technical requirements. KDB 905462 D03 UNII Clients Without Radar Detection New Rules v01r02 COMPLIANCE MEASUREMENT PROCEDURES FOR UNLICENSED-NATIONAL INFORMATION KDB 905462 D02 INFRASTRUCTURE DEVICES OPERATING IN THE 5250-5350 MHz AND 5470-5725 MHz BANDS INCORPORATING DYNAMIC FREQUENCY SELECTION 2021 2016 2016 5. Laboratory Environment Measurement is performed in shielding room. 6. Test Results 6.1. Summary of Test Results SUMMARY OF MEASUREMENT RESULTS Sub-clause of Part15E Verdict Channel move time and channel closing transmission time 15.407 (h)(2)(iii) P Non-Occupancy Period 15.407 (h)(2) (iv) P Please refer to ANNEX A for detail. Terms used in Verdict column P Pass, The EUT complies with the essential requirements in the standard. NM Not measured, The test was not measured by CTTL NA Not Applicable, The test was not applicable F Fail, The EUT does not comply with the essential requirements in the standard 6.2. Statements CTTL has evaluated the test cases as listed in section 6.1 of this report for the EUT specified in section 3 according to the standards or reference documents listed in section 4. This report only deal with the UNII DFS functions among the features described in section 3, and The EUT met all requirements of the reference documents. The end user is not available to get and modify the parameters of the detected Radar Waveforms in this product. ©Copyright. All rights reserved by CTTL. Page 7 of 16 No. 24T04Z101045-019 6.3. Test Conditions For this report, all the test cases are tested under normal temperature and normal voltage, and also under norm humidity, the specific condition is shown as follows: Temperature Voltage Humidity 26°C 3.9V 44% 7. Test Facilities Utilized Conducted test system No. Equipment Model Vector Signal 1 FSQ40 Analyzer Vector Signal 2 SMU200A Generator 3 Shielding Room S81 Serial Number 200089 103752 / Manufacturer Rohde & Schwarz Rohde & Schwarz ETS-Lindgren Calibration Period 1 year 1 year / Calibration Due Date 2024-07-04 2024-07-04 / ©Copyright. All rights reserved by CTTL. Page 8 of 16 No. 24T04Z101045-019 ANNEX A: Detailed Test Results A.1. Measurement Method A.1.1. Conducted Measurements The below figure shows the DFS setup, where the EUT is a RLAN device operating in slave mode, without Radar Interference Detection function. This setup also contains a device operating in master mode. The radar test signals are injected into the master device. The EUT (slave device) is associated with the master device. WLAN traffic is generated by streaming the mpeg file from the master to the slave in full monitor video mode using the media player. Note: 1) 2) 3) All Measurements are performed with the EUT's narrowest channel bandwidth. The master device information is as follows Vendor: ASUS Model: GT-AXE11000 FCC ID: MSQ-RTAXJF00 The software of radar signal generator (R&S SMU200A) is completely designed based on KDB 905462 requirement. A.1.2. Parameters of DFS test signal 1). Interference threshold values, master or client incorporation in service monitoring. For device power less than 23dBm (E.I.R.P.), the threshold level is -62 dBm at the antenna port after correction for antenna gain and procedural adjustments. Because of conducted measurement performed, the calibration power from radar signal generator to antenna port of DFS test equipment is -62 dBm. Maximum Transmit Power Value > 200 mW -64 dBm < 200 mW -62 dBm The radar Detection Threshold, lowest antenna gain is the parameter of interference radar DFS detection threshold. One 10 Second plot bee reported for the short Pulse Radar type 1-4the type 0 was be used, which was selected by auto test software. Radar Waveform Calibration Result: ©Copyright. All rights reserved by CTTL. Page 9 of 16 No. 24T04Z101045-019 Ref -10 dBm -10 -20 1 AP CLRWR -30 -40 -50 1 -60 -70 -80 -90 -100 -110 Center 5.61 GHz * Att 5 dB RBW 3 MHz VBW 10 MHz SWT 1 s Marker 1 [T1 ] -61.79 dBm 201.923077 ms A SGL 3DB 100 ms/ Date: 15.JAN.2022 06:39:49 Fig.A.1 80M Calibration Result 2). DFS requirement values The required values are as the following table. Parameter Non-occupancy Channel Availability Check Time Channel Move Time Channel Closing Transmission Time U-NII Detection Bandwidth Value > 1800 s 60 s 10 s 200 ms + 60 ms Minimum 80% of the 99% transmission power bandwidth As the EUT is IP based system, the MPEG video file from NTIA website is used to steam to EUT via the Master device. A.1.3. Measurement Uncertainty Item Time Power Measurement Uncertainty 0.70 ms 0.75 dBm ©Copyright. All rights reserved by CTTL. Page 10 of 16 No. 24T04Z101045-019 A.2. Channel move time and channel closing transmission time Measurement Limit: Test Items channel closing transmission time Channel move time Limit < 200 ms + 60 ms < 10 s Measurement Results: Frequency Band: 5250MHz ~ 5350MHz(80M-5290MHz) Ref -20 dBm -20 1 -30 1 AP CLRWR -40 -50 -60 -70 -80 -90 -100 -110 -120 Center 5.29 GHz Att 5 dB RBW 3 MHz VBW 10 MHz SWT 12 s Delta 2 [T1 ] -40.81 dB 10.000000 s Marker 1 [T1 ] -30.89 dBm 423.076923 ms A SGL 2 3DB 1.2 s/ Date: 11.MAY.2024 17:39:18 Fig.A.2 Channel move time The channel move time is as the figure. It shows the time of the radar and the client pulses. The figure shows that the client stops transmission within 10 seconds, and no transmissions occur after 10 seconds later of the radar burst signal. ©Copyright. All rights reserved by CTTL. Page 11 of 16 Ref -20 dBm -20 1 -30 1 AP CLRWR -40 -50 -60 -70 2 -80 -90 -100 -110 -120 Center 5.29 GHz No. 24T04Z101045-019 Att 5 dB RBW 3 MHz VBW 10 MHz SWT 3 s Delta 4 [T1 ] -40.77 dB 865.384615 ms Marker 1 [T1 ] -31.64 dBm 375.000000 ms A Delta 2 [T1 ] SGL -41.08 dB 115.384615 ms Delta 3 [T1 ] -41.23 dB 855.769231 ms 34 3DB 300 ms/ Date: 11.MAY.2024 17:32:18 Fig.A.3 channel closing transmission time The closing transmission time is as the figure, and the result is 21154ms=Delta2+(Delta4-Delta3)*10. Conclusion: PASS Frequency Band 5470MHz ~ 5725MHz(80M-5530MHz) Ref -20 dBm -20 1 -30 1 AP CLRWR -40 -50 -60 -70 -80 -90 -100 -110 -120 Center 5.53 GHz Att 5 dB RBW 3 MHz VBW 10 MHz SWT 12 s Delta 2 [T1 ] -40.77 dB 10.000000 s Marker 1 [T1 ] -30.39 dBm 403.846154 ms A SGL 2 3DB 1.2 s/ Date: 11.MAY.2024 18:22:10 Fig.A.4 Channel move time The channel move time is as the figure. It shows the time of the radar and the client pulses. The figure shows that the client stops transmission within 10 seconds, and no transmissions occur after 10 seconds later of the radar burst signal. ©Copyright. All rights reserved by CTTL. Page 12 of 16 No. 24T04Z101045-019 Ref -20 dBm -20 1 -30 1 AP CLRWR -40 -50 -60 2 -70 -80 -90 -100 -110 -120 Center 5.53 GHz Att 5 dB RBW 3 MHz VBW 10 MHz SWT 3 s 34 300 ms/ Delta 4 [T1 ] -40.42 dB 913.461538 ms Marker 1 [T1 ] -31.13 dBm 658.653846 ms A Delta 2 [T1 ] SGL -39.30 dB 28.846154 ms Delta 3 [T1 ] -40.96 dB 903.846154 ms 3DB Date: 11.MAY.2024 18:19:57 Fig.A.5 channel closing transmission time The closing transmission time is as the figure, and the result is 137.46ms=Delta2+(Delta4-Delta3)*14. Conclusion: PASS ©Copyright. All rights reserved by CTTL. Page 13 of 16 A.3.Non-Occupancy Period Measurement Limit: Test Items Non-Occupancy Period No. 24T04Z101045-019 Limit > 1800 s A3.1 Associated test Associate the master and client, transmit specified stream between the master and client; monitor the analyzer on the operating frequency to make sure no beacons have been transmitted for 1800 seconds. Frequency Band: 5150MHz ~ 5350MHz(80M-5290MHz) Ref -20 dBm -20 1 -30 1 AP CLRWR -40 -50 -60 -70 -80 -90 -100 -110 -120 Center 5.29 GHz Att 5 dB RBW 3 MHz VBW 10 MHz SWT 2000 s Delta 2 [T1 ] -38.91 dB 1.800000 ks Marker 1 [T1 ] -31.41 dBm 83.333333 s A SGL 2 3DB 200 s/ Date: 11.MAY.2024 18:14:29 Fig.A.6 Non-Occupancy Period The figure above shows that the client does not transmit any emission within 1800 seconds after getting the order of "stop transmits" from the DFS master (access point). Conclusion: PASS ©Copyright. All rights reserved by CTTL. Page 14 of 16 No. 24T04Z101045-019 Frequency Band: 5470MHz ~ 5725MHz Ref -20 dBm -20 1 -30 1 AP CLRWR -40 Att 5 dB RBW 3 MHz VBW 10 MHz SWT 2000 s -50 -60 -70 -80 -90 -100 -110 -120 Center 5.53 GHz 200 s/ Delta 2 [T1 ] -39.17 dB 1.800000 ks Marker 1 [T1 ] -30.84 dBm 86.538462 s A SGL 2 3DB Date: 11.MAY.2024 19:00:11 Fig.A.7 Non-Occupancy Period The figure above shows that the client does not transmit any emission within 1800 seconds after getting the order of "stop transmits" from the DFS master (access point). Conclusion: PASS A.4. Antenna Requirement The antenna of the device is permanently attached. There are no provisions for connection to an external antenna. The unit complies with the requirement of FCC Part 15.203. ANNEX B: EUT parameters Disclaimer: The antenna gain provided by the client may affect the validity of the measurement results in this report, and the client shall bear the impact and consequences arising therefrom. ©Copyright. All rights reserved by CTTL. Page 15 of 16 ANNEX C: Accreditation Certificate No. 24T04Z101045-019 *** END OF REPORT BODY *** ©Copyright. All rights reserved by CTTL. Page 16 of 16WPS 文字