FCC Part 15 Test Report

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. China 100191

1.3. Testing Environment

Normal Temperature: 15-35°C

Relative Humidity: 20-75%

1.4. Project Date

Testing Start Date: 2024-08-12

Testing End Date: 2024-09-20

1.5. Signature

Yao Xingyu (Prepared this test report)

Zheng Wei (Reviewed this test report)

Pang Shuai (Approved this test report)

2. Client Information

2.1. Applicant Information

Company Name: Xiaomi Communications Co., Ltd.

Address: #019, 9th Floor, Building 6, 33 Xi'erqi Middle Road, Haidian District, Beijing, China, 100085

Contact Name: Zeng Qingyao

Telephone: 010-60606666-8088

Fax: 010-60606666-1101

E-mail: mi-compliance@xiaomi.com

2.2. Manufacturer Information

Company Name: Xiaomi Communications Co., Ltd.

Address: #019, 9th Floor, Building 6, 33 Xi'erqi Middle Road, Haidian District, Beijing, China, 100085

Contact Name: Zeng Qingyao

Telephone: 010-60606666-8088

Fax: 010-60606666-1101

E-mail: mi-compliance@xiaomi.com

3. Equipment Under Test (EUT) and Ancillary Equipment (AE)

3.1. About EUT

3.2. Internal Identification of EUT used during the test

*EUT ID: is used to identify the test sample in the lab internally.

3.3. General Description

The Equipment Under Test (EUT) is a model of Mobile Phone with integrated antenna. It consists of normal options: lithium battery, charger. Manual and specifications of the EUT were provided to fulfil the test.

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 CFR 47, Part 15, Subpart E: 15.407 General technical requirements. (2021)
• KDB 905462 D03: UNII Clients Without Radar Detection New Rules v01r02 (2016)
• KDB 905462 D02: COMPLIANCE MEASUREMENT PROCEDURES FOR UNLICENSED-NATIONAL INFORMATION INFRASTRUCTURE DEVICES OPERATING IN THE 5250-5350 MHz AND 5470-5725 MHz BANDS INCORPORATING DYNAMIC FREQUENCY SELECTION (2016)

5. Laboratory Environment

Measurement is performed in shielding room.

6. Test Results

6.1. Summary of Test Results

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 deals 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.

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:

7. Test Facilities Utilized

Conducted test system

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.

Diagram Description: A block diagram illustrating the test setup. It includes a Spectrum Analyzer, a 2-Way Splitter/Combiner, an Attenuator (ATT), a Radar Test Signal Generator, and the EUT (Slave device).

Note:

1. All Measurements are performed with the EUT's narrowest channel bandwidth.
2. The master device information is as follows: Vendor: ASUS, Model: GT-AXE11000, FCC ID: MSQ-RTAXJF00
3. 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.

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 1-4, the type 0 was be used, which was selected by auto test software.

Fig.A.1 80M Calibration Result: A spectrum analyzer plot showing frequency on the x-axis and power on the y-axis, indicating a calibration result.

2). DFS requirement values

The required values are as the following table.

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

A.2. Channel move time and channel closing transmission time

Measurement Limit:

Measurement Results:

Frequency Band: 5250MHz ~ 5350MHz(80M-5290MHz)

Fig.A.2 Channel move time: A spectrum analyzer plot showing transmission activity over time. The plot indicates the time of radar and client pulses. The client stops transmission within 10 seconds, and no transmissions occur after 10 seconds later of the radar burst signal.

Conclusion: PASS

Frequency Band 5470MHz ~ 5725MHz(80M-5530MHz)

Fig.A.3 channel closing transmission time: A spectrum analyzer plot showing transmission activity. The result is 177.93ms (calculated from plot markers). Conclusion: PASS

Fig.A.4 Channel move time: A spectrum analyzer plot. The client stops transmission within 10 seconds, and no transmissions occur after 10 seconds later of the radar burst signal.

A.3.Non-Occupancy Period

Measurement Limit:

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)

Fig.A.6 Non-Occupancy Period: A spectrum analyzer plot. 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

Frequency Band: 5470MHz ~ 5725MHz

Fig.A.7 Non-Occupancy Period: A spectrum analyzer plot. 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.

ANNEX C: Accreditation Certificate