Xiaomi Communications Co., Ltd. J6B2G Mobile Phone (LTE/WCDMA/GSM/BT/WIFI/NFC) 2AFZZJ6B2G 2AFZZJ6B2G j6b2g
Test Report No.: RF200312N004-1
Applicant Address
TEST REPORT
Xiaomi Communications Co., Ltd. #019, 9th Floor, Building 6, 33 Xi'erqi Middle Road, Haidian District, Beijing, China, 100085
Manufacturer or Supplier Address
Product Name
Xiaomi Communications Co., Ltd.
#019, 9th Floor, Building 6, 33 Xi'erqi Middle Road, Haidian District, Beijing, China, 100085
Mobile Phone
Brand Name
Redmi
Model
M2003J6B2G
Additional Model & Model Difference
N/A
FCC ID
2AFZZJ6B2G
Date of tests
Mar. 12, 2020 ~ Apr. 07, 2020
the tests have been carried out according to the requirements of the following standard:
FCC Part 15, Subpart E, Section 15.407 FCC 06-96 KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02 KDB 905462 D03 UNII Clients Without Radar Detection New Rules v01r02
CONCLUSION: The submitted sample was found to COMPLY with the test requirement
Tested by Lucas Chen Project Engineer / EMC Department
Approved by Glyn He Assistant Manager / EMC Department
Date: Apr. 10, 2020
This report is governed by, and incorporates by reference, CPS Conditions of Service as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our-business/cps/about-us/terms-conditions/and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute you unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents.
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Report Version 1
Test Report No.: RF200312N004-1
TABLE OF CONTENTS
RELEASE CONTROL RECORD ............................................................................................................ 4
1 EUT INFORMATION....................................................................................................................... 5
1.1 OPERATING FREQUENCY BANDS AND MODE OF EUT ....................................................... 5 1.2 EUT SOFTWARE AND FIRMWARE VERSION ......................................................................... 5 1.3 DESCRIPTION OF AVAILABLE ANTENNAS TO THE EUT ...................................................... 5 1.4 TRANSMIT POWER CONTROL (TPC) ..................................................................................... 6 1.5 STATEMENT OF MAUNFACTURER ......................................................................................... 6
2 U-NII DFS RULE REQUIREMENTS .............................................................................................. 7
2.1 WORKING MODES AND REQUIRED TEST ITEMS ................................................................. 7 2.2 TEST LIMITS AND RADAR SIGNAL PARAMETERS ................................................................ 8
3 TEST & SUPPORT EQUIPMENT LIST ........................................................................................11
3.1 TEST INSTRUMENTS ..............................................................................................................11 3.2 DESCRIPTION OF SUPPORT UNITS......................................................................................11
4 TEST PROCEDURE..................................................................................................................... 12
4.1 BVADT DFS MEASUREMENT SYSTEM:................................................................................ 12 4.2 CALIBRATION OF DFS DETECTION THRESHOLD LEVEL: ................................................. 13 4.3 DEVIATION FROM TEST STANDARD .................................................................................... 14 4.4 CONDUCTED TEST SETUP CONFIGURATION .................................................................... 14
4.4.1 CLIENT WITHOUT RADAR DETECTION MODE ........................................................... 14
5 TEST RESULTS ........................................................................................................................... 15
5.1 SUMMARY OF TEST RESULTS.............................................................................................. 15 5.2 DETAILED TEST RESULTS..................................................................................................... 15 5.2.1 TEST MODE: DEVICE OPERATING IN CLIENT WITHOUT RADAR DETECTION MODE 15 5.2.2 DFS DETECTION THRESHOLD .......................................................................................... 16 5.2.3 CHANNEL LOADING ............................................................................................................ 17 5.2.4 CHANNEL CLOSING TRANSMISSION AND CHANNEL MOVE TIME ................................ 18 5.2.5 NON- OCCUPANCY PERIOD ............................................................................................... 19 5.2.6 NON-ASSOCIATED TEST .................................................................................................... 21 5.2.7 NON- CO-CHANNEL TEST................................................................................................... 21
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Report Version 1
Test Report No.: RF200312N004-1 6 PHOTOGRAPHS OF THE TEST CONFIGURATION .................................................................. 22
7 APPENDIX A - MODIFICATIONS RECORDERS FOR ENGINEERING CHANGES TO THE EUT BY THE LAB ........................................................................................................ 23
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Report Version 1
Test Report No.: RF200312N004-1
RELEASE CONTROL RECORD
ISSUE NO.
REASON FOR CHANGE
RF200312N004 Original release.
DATE ISSUED Apr. 10, 2020
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Test Report No.: RF200312N004-1
1 EUT INFORMATION
1.1 OPERATING FREQUENCY BANDS AND MODE OF EUT
OPERATING FREQUENCY BANDS AND MODE OF EUT
OPERATIONAL MODE
Client without radar detection and ad hoc function
OPERATING FREQUENCY RANGE
5250~5350MHz
5470~5725MHz
V
V
1.2 EUT SOFTWARE AND FIRMWARE VERSION
THE EUT SOFTWARE/FIRMWARE VERSION
NO.
PRODUCT
MODEL NO.
SOFTWARE/FIRMWARE VERSION
1
Mobile Phone
M2003J6B2G
MIUI 11
1.3 DESCRIPTION OF AVAILABLE ANTENNAS TO THE EUT
ANTENNA LIST
ANT.
BRAND
MODEL
CONNECTOR TYPE
ANT TYPE
1
N/A
N/A
N/A
PIFA
FREQUENCY RANGE
(MHZ TO MHZ)
NET GAIN(dBi)
CABLE LOSS(dBi)
5250 - 5350
-4.76
0
5470 - 5725
-4.72
0
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1.4 TRANSMIT POWER CONTROL (TPC) U-NII devices operating in the 5.25-5.35 GHz band and the 5.47-5.725 GHz band shall employ a TPC mechanism. The U-NII device is required to have the capability to operate at least 6 dB below the mean EIRP value of 30 dBm. A TPC mechanism is not required for systems with an EIRP of less than 500 mW.
Maximum EIRP of this device is less than 500mW which less than 500mW, therefore it's not require TPC function.
1.5 STATEMENT OF MAUNFACTURER This device (Client) is without radar detection, then the manufacturer statement confirming that information regarding the parameters of the detected Radar Waveforms is not available to the end user. And the device doesn't have Ad Hoc mode on DFS frequency band.
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2 U-NII DFS RULE REQUIREMENTS
2.1 WORKING MODES AND REQUIRED TEST ITEMS
The manufacturer shall state whether the UUT is capable of operating as a Master and/or a Client. If the UUT is capable of operating in more than one operating mode then each operating mode shall be tested separately. See the applicability of DFS requirements for each of the operational modes.
APPLICABILITY OF DFS REQUIREMENTS PRIOR TO USE A CHANNEL
REQUIREMENT
Non-Occupancy Period DFS Detection Threshold Channel Availability Check Time
Uniform Spreading U-NII Detection Bandwidth
MASTER
OPERATIONAL MODE
CLIENT WITHOUT RADAR
DETECTION
CLIENT WITH RADAR
DETECTION
Not required
Not required
Not required
Not required
Not required
Not required
APPLICABILITY OF DFS REQUIREMENTS DURING NORMAL OPERATION
REQUIREMENT
DFS Detection Threshold Channel Closing Transmission Time
Channel Move Time U-NII Detection Bandwidth
MASTER
OPERATIONAL MODE
CLIENT WITHOUT RADAR
DETECTION
CLIENT WITH RADAR
DETECTION
Not required
Not required
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2.2 TEST LIMITS AND RADAR SIGNAL PARAMETERS
DETECTION THRESHOLD VALUES
DFS DETECTION THRESHOLDS FOR MASTER DEVICES AND CLIENT DEVICES WITH RADAR DETECTION
MAXIMUM TRANSMIT POWER
VALUE (SEE Note 1 and 2)
200 milliwatt
-64 dBm
< 200 milliwatt
-62 dBm
Note 1: This is the level at the input of the receiver assuming a 0 dBi receive antenna.
Note 2: Throughout these test procedures an additional 1 dB has been added to the amplitude of the test transmission waveforms to account for variations in measurement equipment. This will ensure that the test signal is at or above the detection threshold level to trigger a DFS response.
DFS RESPONSE REQUIREMENT VALUES
PARAMETER
VALUE
Non-occupancy period
Minimum 30 minutes
Channel Availability Check Time
60 seconds
Channel Move Time
10 seconds
See Note 1.
Channel Closing Transmission Time
200 milliseconds + an aggregate of 60
milliseconds over remaining 10 second period.
See Notes 1 and 2.
U-NII Detection Bandwidth
100% of the UNII transmission power bandwidth.
See Note 3.
Note 1: The instant that the Channel Move Time and the Channel Closing Transmission Time begins is as follows:
· For the Short Pulse Radar Test Signals this instant is the end of the Burst.
· For the Frequency Hopping radar Test Signal, this instant is the end of the last radar
Burst generated.
· For the Long Pulse Radar Test Signal this instant is the end of the 12 second period defining the Radar Waveform.
Note 2: The Channel Closing Transmission Time is comprised of 200 milliseconds starting at the beginning of the Channel Move Time plus any additional intermittent control signals required to facilitate a Channel move (an aggregate of 60 milliseconds) during the remainder of the 10 second period. The aggregate duration of control signals will not count quiet periods in between transmissions.
Note 3: During the U-NII Detection Bandwidth detection test, radar type 1 is used and for each frequency step the minimum percentage of detection is 90 percent. Measurements are performed with no data traffic.
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PARAMETERS OF DFS TEST SIGNALS
Step intervals of 0.1 microsecond for Pulse Width, 1 microsecond for PRI, 1 MHz for chirp width and 1 for the number of pulses will be utilized for the random determination of specific test waveforms.
Short Pulse Radar Test Waveforms
Radar Type
Pulse Width (µsec)
PRI (µsec)
Number of Pulses
Minimum Percentage
of Successful Detection
Minimum Number of
Trials
0
1
1428
18
See Note 1 See Note 1
1
1
Test A: 15 unique
PRI values
randomly selected
from the list of 23
PRI values in
Table 5a
------------------------
Test B: 15 unique
PRI values
randomly selected
within the range
of 518-3066
sec, with a
minimum
increment of 1
sec,
excluding PRI
values
selected in
Test A
60%
30
2
1-5
150-230
23-29
60%
30
3
6-10
200-500
16-18
60%
30
4
11-20
200-500
12-16
60%
30
Aggregate (Radar Types 1-4)
80%
120
Note 1: Short Pulse Radar Type 0 should be used for the detection bandwidth test, channel move time, and channel closing time tests.
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LONG PULSE RADAR TEST WAVEFORM
RADAR TYPE
PULSE WIDTH (µsec)
CHIRP WIDTH (MHz)
PRI (µsec)
NUMBER OF PULSES PER BURST
NUMBER OF BURSTS
MINIMUM PERCENTAGE OF
SUCCESSFUL DETECTION
MINIMUM NUMBER OF
TRIALS
5 50-100 5-20 1000-2000 1-3
8-20
80%
30
FREQUENCY HOPPING RADAR TEST WAVEFORM
RADAR TYPE
PULSE WIDTH
(µsec)
PRI (µsec)
HOPPING PULSES RATE PER HOP
(kHz)
HOPPING
MINIMUM
SEQUENCE PERCENTAGE OF
LENGTH SUCCESSFUL
(msec)
DETECTION
MINIMUM NUMBER OF
TRIALS
6
1
333
9
0.333
300
70%
30
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3 TEST & SUPPORT EQUIPMENT LIST
3.1 TEST INSTRUMENTS
TEST INSTRUMENTS LIST.
DESCRIPTION & MANUFACTURER
Spectrum Analyzer R&S Spectrum
MXG-B RF Vector Signal Generator
Signal generator
MODEL NO.
N9020A FSV7
BRAND
CALIBRATED DATE
MY55400499 Mar. 21,20
R&S
Nov 25, 19
CALIBRATED UNTIL
Mar. 20,21 Nov 24, 20
N5182B MY56200288 Jan. 02,20
Jan. 01,21
8645A
Agilent
Sep.01, 19
Aug.31, 20
3.2 DESCRIPTION OF SUPPORT UNITS
SUPPORT UNIT INFORMATION.
NO. PRODUCT
BRAND MODEL NO.
FCC ID
SOFTWARE/FIR MWARE VERSION
1 Router AC3200 LINKSYS WRT-3200ACM Q87-WRT3200ACM 1.0.0.174361
NOTE: This device was functioned as a Master Slave device during the DFS test.
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4 TEST PROCEDURE
4.1 BVADT DFS MEASUREMENT SYSTEM:
A complete DFS Measurement System consists of Radar signal generate system to generating the radar waveforms. The traffic monitoring system is specified to the type of unit under test (UUT).
Conducted setup configuration of DFS Measurement System
Control PC
Radar Signal Generating Subsystem
Spectrum Analyzer
Attenuator
C/S
Attenuator Client (UUT)
Attenuator
Traffic Monitoring Subsystem
C/S
MASTER (Support Unit)
Channel Loading
System testing will be performed with channel-loading using means appropriate to the data types that are used by the unlicensed device. The following requirements apply:
The data file must be of a type that is typical for the device (i.e., MPEG-2, a) MPEG-4, WAV, MP3, MP4, AVI, etc.) and must generally be transmitting in a
streaming mode. Software to ping the client is permitted to simulate data transfer but must have b) random ping intervals.
Timing plots are required with calculations demonstrating a minimum channel c) loading of approximately 17% or greater.
d)
Unicast or Multicast protocols are preferable but other protocols may be used. The appropriate protocol used must be described in the test procedures.
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4.2 CALIBRATION OF DFS DETECTION THRESHOLD LEVEL:
The measured channel is 5300MHz and 5500 MHz in 20MHz Bandwidth, 5290MHz and 5530MHz in 80MHz Bandwidth. The radar signal was the same as transmitted channels, and injected into the antenna port of AP (master) or Client Device with Radar Detection, measured the channel closing transmission time and channel move time. The Master maximum transmit power was more than 200mW. The Master antenna gain is 3dBi and required detection threshold is -61dBm (=-64+3)dBm.
Conducted setup configuration of calibration of DFS detection threshold level:
Control PC
Spectrum Analyzer
50 Load (Terminator)
C/S
50 Load (Terminator)
Attenuator
Attenuator
Radar Signal Generating Subsystem
Attenuator
C/S
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4.3 DEVIATION FROM TEST STANDARD No deviation. 4.4 CONDUCTED TEST SETUP CONFIGURATION
4.4.1 CLIENT WITHOUT RADAR DETECTION MODE
Control PC
Spectrum Analyzer
Radar Signal Generating Subsystem
C/S Attenuator
Client (UUT)
Notebook
Attenuator
C/S
Master
Notebook
The UUT is a U-NII Device operating in Client mode without radar detection. The radar test signals are injected into the Master Device.
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5 TEST RESULTS
5.1 SUMMARY OF TEST RESULTS
CLAUSE
TEST PARAMETER
REMARKS
PASS/FAIL
15.407
DFS Detection Threshold
Not Applicable
15.407
Channel Availability Check Time
Not Applicable
15.407
Channel Move Time
Applicable
15.407
Channel Closing Transmission Time
Applicable
15.407
Non- Occupancy Period
Applicable
15.407
Uniform Spreading
Not Applicable
15.407
U-NII Detection Bandwidth
Not Applicable
15.407
Non-associated test
Applicable
15.407
Non-Co-Channel test
Applicable
Note: Therefore test procedure were completed by KDB 905462
N/A N/A Pass Pass Pass N/A N/A Pass Pass
5.2 DETAILED TEST RESULTS
5.2.1 TEST MODE: DEVICE OPERATING IN CLIENT WITHOUT RADAR DETECTION MODE
The radar test signals are injected into the Master Device. This test was investigated for different bandwidth (20MHz, 40MHz and 80MHz ). The following plots was done on 80MHz as a representative
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5.2.2 DFS DETECTION THRESHOLD The Required detection threshold is -61.00dBm = -64 +3dBi. The conducted radar burst level is set to -61.21dBm.
Radar signal
Noise Floor
Radar Signal (Type 0)
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5.2.3 CHANNEL LOADING
The measured channel is 5300MHz and 5500MHz in 20MHz Bandwidth and 5290MHz and 5530MHz in 80MHz Bandwidth. The radar signal was the same as transmitted channels, and injected into the antenna port of AP (master) with radar signal, measured the channel shutdown. The slave transmitted the test data to master, the transmitted duty cycle is 19.653%.
NOTE: T1 denotes the start of duty cycle period is 0th second. T2 denotes the end of duty cycle period is 1th second. T2 T1= 1 seconds. Duty Cycle = 19.653%. Note: Traffic signal: from slave transmit to master.
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5.2.4 CHANNEL CLOSING TRANSMISSION AND CHANNEL MOVE TIME Radar Signal 0
NOTE: T1 denotes the start of Channel Move Time upon the end of the last Radar burst. T2 denotes the data transmission time of 200ms from T1. T3 denotes the end of Channel Move Time. T4 denotes the 10 second from T1 to observe the aggregate duration of transmissions.
Radar Signal
Noise Floor
NOTE: Zoom in of the first 200ms after radar signal applied.
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5.2.5 NON- OCCUPANCY PERIOD ASSOCIATED TEST
1) Test results demonstrating an associated client link is established with the master on a test frequency.
EUT (Client ) links with master on 5290MHz 2) The client and DFS-certified master device are associated, and system testing will be performed with channel-loading for a non-occupancy period test.
Client performed with channel-loading via master.
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Test Report No.: RF200312N004-1 3). The device transmits one type of radar as specified in the DFS Order.
Radar Signal (Type 0) is used to test during DFS testing. 4) The test frequency has been monitored to ensure no transmission of any type has occurred for 30 minutes; Note: If the client moves with the master, the device is considered compliant if nothing appears in the client non-occupancy period test. For devices that shut down (rather than moving channels), no beacons should appear; 5)An analyzer plot that contains a single 30-minute sweep on the original test frequency.
Injected into Radar Traffic Signal
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5.2.6 NON-ASSOCIATED TEST
Master was off. During the 30 minutes observation time, The UUT did not make any transmissions in the DFS band after UUT power up.
5.2.7 NON- CO-CHANNEL TEST
The UUT was investigated after radar was detected the channel and made sure no co-channel operation with radars.
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6 PHOTOGRAPHS OF THE TEST CONFIGURATION
Please refer to the attached file (Test Setup Photo).
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7 APPENDIX A - Modifications recorders for engineering changes to the EUT BY THE LAB
No any modifications are made to the EUT by the lab during the test.
---END---
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