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YD/T 2583.18-2019 (YD/T2583.18-2019)

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YD/T 2583.18-2019: PDF in English (YDT 2583.18-2019)
YD/T 2583.18-2019
YD
COMMUNICATIONS INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 33.100
M 04
Requirement and measurement methods of
electromagnetic compatibility for cellular mobile
telecommunication equipment - Part 18: 5G user
equipment and ancillary equipment
ISSUED ON: DECEMBER 24, 2019
IMPLEMENTED ON: DECEMBER 24, 2019
Issued by: Ministry of Industry and Information Technology of the
People's Republic of China
Table of Contents
Foreword ... 4 
1 Scope ... 6 
2 Normative references ... 6 
3 Terms, definitions and abbreviations ... 7 
3.1 Terms and definitions ... 7 
3.2 Abbreviations ... 10 
4 Test conditions ... 11 
4.1 General conditions ... 11 
4.2 Test setup ... 13 
4.3 Narrowband response of receiver ... 13 
4.4 Frequency band free from testing ... 13 
5 Performance evaluation method ... 14 
5.1 General ... 14 
5.2 UE that can establish continuous communication connection ... 14 
5.3 UE that cannot establish continuous communication connection ... 14 
5.4 Applicable methods for evaluating ancillary equipment ... 14 
5.5 UE classification ... 14 
6 Performance criteria ... 15 
6.1 General ... 15 
6.2 Performance criteria (continuous phenomenon) ... 15 
6.3 Performance criteria (transient phenomenon) ... 16 
6.4 Performance criteria (intermittent phenomenon) ... 16 
7 Applicability ... 16 
7.1 Disturbance measurement ... 16 
7.2 Immunity test ... 17 
8 Disturbance measurement methods and limits ... 18 
8.1 Radiated spurious disturbance (enclosure port) ... 18 
8.2 Radiation disturbance (enclosure port of ancillary equipment) ... 20 
8.3 Conducted disturbance (DC power input/output port) ... 21 
8.4 Conducted disturbance (AC power input/output port) ... 21 
8.5 Conducted disturbance (wired network port) ... 22 
8.6 Harmonic current (AC power input port) ... 23 
8.7 Voltage change, voltage fluctuation and flicker (AC power input port) ... 23 
8.8 Transient conduction disturbance (DC power input/output port of in-vehicle
equipment) ... 23 
9 Method and level of immunity test ... 24 
9.1 Electrostatic discharge immunity ... 24 
9.2 Radio frequency electromagnetic field radiation immunity ... 24 
9.3 Electrical fast transient/burst immunity ... 25 
9.4 Surge (impact) immunity ... 25 
9.5 Conducted disturbance immunity of RF field sensing ... 26 
9.6 Power frequency magnetic field immunity ... 26 
9.7 Immunity to voltage dips, short-term interruptions and voltage changes ... 26 
9.8 Transient and surge immunity (in-vehicle environment) ... 28 
Annex A (normative) Measurement method for audio breakthrough ... 30 
Annex B (normative) Measurement method for throughput ... 33 
Requirement and measurement methods of
electromagnetic compatibility for cellular mobile
telecommunication equipment - Part 18: 5G user
equipment and ancillary equipment
1 Scope
This Part specifies electromagnetic compatibility requirements for 5G cellular
mobile communication system user equipment and ancillary equipment,
including measurement methods, frequency range, limits and performance
criteria.
This Part is applicable to user equipment for portable and in-vehicle use, user
equipment powered by a power source and used in a fixed location, as well as
various data terminal equipment of 5G cellular communication system.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB 17625.1, Electromagnetic compatibility - Limits - Limits for harmonic
current emissions (equipment input current ≤16 A per phase)
GB/T 17625.2, Electromagnetic compatibility limits (EMC) - Limitation of
voltage changes, voltage fluctuations and flicker in public low-voltage supply
systems, for equipment with rated current ≤16A per phase and not subject to
conditional connection
GB/T 17626.2, Electromagnetic compatibility - Testing and measurement
techniques - Electrostatic discharge immunity test
GB/T 17626.3, Electromagnetic compatibility - Testing and measurement
techniques - Radiated, radio-frequency, electromagnetic field immunity test
GB/T 17626.4, Electromagnetic compatibility - Testing and measurement
techniques - Electrical fast transient/burst immunity test
3.1.1 User Equipment (UE)
A device that can access mobile cellular services through one or more wireless
interfaces. When this device accesses mobile cellular services, it can be
stationary or mobile in the cellular service area. The device can provide services
to one or more users at the same time.
3.1.2 Ancillary Equipment (AE)
A device connected to a wireless communication device that meets the
following conditions at the same time:
- Connect with wireless communication equipment, so as to provide
additional operating or control features, for example, extend operation or
control to other locations;
- Cannot be used independently of wireless devices, otherwise user
functions cannot be provided separately;
- The connected wireless communication device can still perform scheduled
operations such as transmitting and/or receiving without this ancillary
device (that is, ancillary equipment is not a subunit of the basic function of
the main equipment).
3.1.3 Associated Measurement Equipment (AME)
A device that assists the UE to work, enables the UE to work normally and/or
monitors the working status of the UE, for example, base station simulator. The
associated measurement equipment can be placed in the test area or outside
the test area. It should be placed outside the test area.
3.1.4 Channel Bandwidth
Single carrier transmission bandwidth configured in the cellular uplink and
downlink. Channel bandwidth unit is MHz. It provides reference for radio
frequency equipment of transmitter and receiver.
3.1.5 Enclosure Port
Physical boundary of the device. The electromagnetic field radiates or
penetrates through the boundary. The physical boundary of the plug-in is
defined by the host unit.
3.1.6 Traffic Mode
The user equipment is turned on and a connection is established with the radio
resource control module.
information transmission. Spurious emission includes harmonic emission,
parasitic emission, intermodulation products and frequency conversion
products, except out-of-band emission.
3.1.14 Wired Network Port
The port is for the purpose of voice, data and signal transmission, and is directly
connected to a single-user or multi-user communication network, for example,
public telephone network, xDSL, Ethernet and similar networks.
3.1.15 Throughput
The maximum number of valid data bits that can be successfully received per
second for the reference test channel in a specific environment.
3.1.16 Transient Phenomena
Harassment within a short time interval. It cannot be distinguished into two
continuous stable states.
3.1.17 Vehicular Equipment
Equipment that is fixedly installed on the vehicle and powered by the vehicle's
power system, or equipment used on a vehicle and equipped with a vehicle
power adapter to use the vehicle power system for power supply.
3.1.18 Common-mode Absorption Device
Device installed on the cable leading out of the radiation emission
measurement test space, so as to reduce compliance uncertainty.
3.2 Abbreviations
The following abbreviations apply to this document.
4.2 Test setup
4.2.1 General conditions
Same with 4.2.1 of YD/T 2583.2.
4.2.2 Test setup for transmitter input
Same with 4.2.2 of YD/T 2583.2.
4.2.3 Test setup for transmitter output
Same with 4.2.3 of YD/T 2583.2.
4.2.4 Test setup for receiver input
Same with 4.2.4 of YD/T 2583.2.
4.2.5 Test setup for receiver output
Same with 4.2.5 of YD/T 2583.2.
4.3 Narrowband response of receiver
When the receiver or the receiver of the receiver/transmitter is undergoing an
immunity test, the narrowband response of discrete frequencies shall be
determined by the following methods:
- During the immunity test (see 9.2 and 9.5), narrowband response and
broadband phenomena may cause the equipment under test to fail the
performance criteria specified in this document (see 6.2). In this case, the
frequency of the interference signal shall be adjusted to determine whether
it is a narrowband response or a broadband phenomenon;
- Offset the test frequency at ±1xBWchannelMHZ. Repeat the test. If the non-
conformity disappears, this situation is a narrowband response;
- If the non-conformity does not disappear, it may be a narrowband response
caused by another interference signal. In this case, offset the test frequency
at ±2xBWchannelMHz. Repeat the test. If the non-conformity has not
disappeared, it is a broadband phenomenon, that is, the equipment under
test fails the test.
Narrowband response shall be ignored.
4.4 Frequency band free from testing
4.4.1 General requirements
6 Performance criteria
6.1 General
The equipment under test shall meet the performance criteria specified in this
section and 6.2 to 6.4.
The maintenance of the communication connection shall be assessed by an
indicator. The indicator can be part of the test system or EUT.
If the EUT is a special equipment and the performance criteria in 6.2 to 6.4 do
not apply, the equipment manufacturer shall give an EUT performance
specification statement. The statement is included in the test and/or after the
test. EUT acceptable performance level or performance degrades.
Performance specification shall be recorded in the test report.
The performance criteria specification provided by the equipment manufacturer
shall provide the same degree of immunity protection as this document.
When testing the immunity of ancillary equipment, if there are no separate
performance criteria, the performance criteria shall be carried out with the
connected receiver or receiver/transmitter.
For portable equipment, when it is declared that the in-vehicle power system
can be used for power supply, the relevant regulations for in-vehicle equipment
shall also be met.
For portable equipment, when it is declared that AC/DC power can be used for
power supply, it shall also meet the relevant regulations for fixed-use equipment.
The test shall be carried out in business mode. It shall also be carried out in idle
mode to ensure that the transmitter does not malfunction.
6.2 Performance criteria (continuous phenomenon)
Before the test, a communication connection shall be established. The
communication connection shall be maintained during the test.
For data transmission business model, in the test, data throughput (application
layer throughput) shall not be less than 95% of the maximum throughput of the
reference test channel. See Annex B for throughput test.
For voice business model, in the test, when using the audio breakthrough
measurement method, when measuring the voice output level through an audio
BPF with a center frequency of 1kHz and a bandwidth of 200Hz, the uplink and
downlink voice output levels shall be at least 35dB lower than the reference
9 Method and level of immunity test
9.1 Electrostatic discharge immunity
9.1.1 Test method and level
The test is carried out according to GB/T 17626.2, in accordance with following
requirements:
- For contact discharge, EUT shall be able to pass the test levels of ±2kV
and ±4kV;
- For air discharge, EUT shall be able to pass the test levels of ±2kV ±4kV
and ±8kV.
9.1.2 Performance criteria
For performance criteria, see 6.3 of this Part.
9.2 Radio frequency electromagnetic field radiation immunity
9.2.1 Test method and level
The test is carried out according to GB/T 17626.3 and shall meet the following
requirements:
- The test shall be carried out in the frequency range of 80MHz ~ 6GHz. The
step size of frequency increase shall be 1% of the previous frequency. The
dwell time of each frequency point shall not be shorter than the time
required for EUT action and response, and it must not be shorter than 0.5s;
- The test field strength is 3V/m;
- The test signal is 80% amplitude modulated by a 1kHz sinusoidal audio
signal;
- Except for the frequency bands free of testing of transmitters, receivers or
receivers that are part of the transceiver;
- If the response of the receiver or the receiver as a part of the transceiver at
discrete frequency points is a narrowband response, then this response
is ignored;
- The test frequency of the narrowband response shall be recorded in the
test report.
9.2.2 Performance criteria
For performance criteria, see 6.3 of this Part.
9.5 Conducted disturbance immunity of RF field sensing
9.5.1 Test method and level
This test item is suitable for AC power ports and signal/control ports with a
connection cable exceeding 3m, wired network ports and DC power ports.
The test method is carried out according to GB/T 17626.6 and shall meet the
following requirements:
- The test shall be carried out in the frequency range of 150kHz ~ 80MHz. In
the frequency range of 150kHz ~ 5MHz, the step size of frequency increase
shall be 50kHz. In the frequency range of 5MHz ~ 80MHz, the step size of
frequency increase shall be 1% of the previous frequency. The dwell time
of each frequency point shall not be shorter than the time required for EUT
action and response, and it must not be shorter than 0.5s;
- The test level is 3Vrms;
- The test signal is 80% amplitude modulated by a 1kHz sinusoidal audio
signal.
9.5.2 Performance criteria
For performance criteria, see 6.2 of this Part.
9.6 Power frequency magnetic field immunity
9.6.1 Test method and level
This test item is suitable for EUT with magnetic field sensitive device (such as
magnetic field sensor). For the test method, see GB/T 17626.8. Test magnetic
field strength is 3A/m.
9.6.2 Performance criteria
For performance criteria, see 6.2 of this Part.
9.7 Immunity to voltage dips, short-term interruptions and voltage
changes
9.7.1 Test method and level
9.7.1.1 AC power test method and level
Test according to GB/T 17626.11. The test levels are:
- When calibrating the reference level of the downlink voice output signal, do
not use EUT. Adjust the output of 1kHz audio signal source. Make the SPL
input to the ERP (downlink acoustic coupler, acoustic tube in Figure A.1)
0dBPa. The reading of the audio analyzer recorded at this time is used as
the reference level of the downlink voice output signal;
- For equipment that uses an external loudspeaker for hands-free, the sound
pressure of the external loudspeaker is usually higher than the sound
pressure of the mobile station earpiece, so as to overcome the
surrounding high noise level. When testing, the reference level value of
the downlink voice output signal shall be increased, so as to compensate
for the above difference in sound pressure. Or adjust the distance
between the loudspeaker and the test microphone to achieve the required
sound pressure level;
- During the calibration process, the instrument used cannot exceed its
dynamic range.
Uplink calibration:
- When calibrating the reference level of the uplink voice output signal, use
EUT. Adjust the output of 1kHz audio signal source to make the input SPL
of MRP (defined in ITU-T P.64) -5dBPa. The reading of the audio analyzer
(connected to SS in Figure A.1) recorded at this time is used as the
reference level of the uplink voice output signal;
- When using hands-free, usually the reference level of the uplink voice
output does not need to be adjusted. If the above calibration cannot be
completed (such as a printed circuit card with headphones), the
manufacturer shall specify the distance between the MRP and the
microphone;
- During calibration, the EUT is installed on the artificial head (defined in ITU-
T P.64). The earpiece of the EUT is located in the center of the artificial
ear of the artificial head;
- During the calibration process, the instrument used cannot exceed its
dynamic range.
A.2 Audio breakthrough test
During the test, the voice control software of EUT shall be set. Avoid the
influence of noise and echo cancellation algorithms. If these algorithms cannot
be disabled, the audio analyzer shall use the maximum hold detection method
for measurement. Thus, the voice output signal level can be measured before
the noise and echo cancellation algorithm takes effect.
......
 
(Above excerpt was released on 2020-11-28, modified on 2021-06-07, translated/reviewed by: Wayne Zheng et al.)
Source: https://www.chinesestandard.net/PDF.aspx/YDT2583.18-2019