YD/T 1484.1: Evolution and historical versions
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(Wireless terminal space radio frequency radiated power and receiver performance measurement methods - Part 1: General requirements)
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Measurement method for radiated RF power and receiver performance of wireless device - Part 1: General requirement
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Measurement method for radiated RF power and receiver performance of mobile stations
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Measurement method for radiated RF power and receiver performance of mobile stations
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Basic data | Standard ID | YD/T 1484.1-2023 (YD/T1484.1-2023) | | Description (Translated English) | (Wireless terminal space radio frequency radiated power and receiver performance measurement methods - Part 1: General requirements) | | Sector / Industry | Telecommunication Industry Standard (Recommended) | | Classification of Chinese Standard | M37 | | Classification of International Standard | 33.060.20 | | Date of Issue | 2023-07-28 | | Date of Implementation | 2023-11-01 | | Older Standard (superseded by this standard) | YD/T 1484.1-2016 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies general requirements for wireless terminal space radio frequency radiation power and receiver performance measurement methods, mainly including total isotropic radiation power, total isotropic radiation sensitivity and other active antenna performance requirements. This standard applies to wireless terminals for portable and vehicle use, as well as those wireless terminals powered by AC power and used in fixed locations, as well as data devices connected to portable computers through interfaces such as USB interfaces, Express interfaces and PCMCIA interfaces. | YD/T 1484-2011: Measurement method for radiated RF power and receiver performance of mobile stations
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Measurement method for radiated RF power and receiver performance of mobile stations
ICS 33.060.20
M36
YD
People 's Republic of China Communication Industry Standard
Mobile station space radio frequency radiated power and receiver performance
Measurement methods
Measurement method for radiated RF power and receiver
Performance of mobile stations
2011-05-18 release
2012-06-01 Implementation
Issued by the Ministry of Industry and Information Technology of the People 's Republic of China
Directory
Foreword
1 Scope
2 normative reference documents
3 terms, definitions and abbreviations
3.1 Terms and definitions
3.2 Abbreviations
4 test conditions
4.1 coordinate system
4.2 Measurement of general conditions
4.3 Mobile station measurement
5 radio frequency radiation power measurement method
5.1 Power measuring equipment
5.2 General conditions for power measurement
5.3 CDMA radio frequency radiation power measurement
5.4 GSM radio frequency radiation power measurement
5.5 GPRS radio frequency radiation power measurement (optional)
5.6 EGPRS RF radiation power measurement
5.7 CDMA 1xRTT RF radiation power measurement
5.8 cdma2000 EV-DO radio frequency radiation power measurement
5.9 TIRP simple test method
6 Receiver performance measurement
6.1 General conditions for receiver performance measurement
6.2 CDMA receiver performance test
6.3 GSM receiver performance test
6.4 GPRS receiver performance test (optional)
6.5 EGPRS receiver performance test
6.6 CDMA 1xRTT receiver performance test
6.7 cdma2000 EV-DO receiver performance test
6.8 TIRS simple test method
Appendix A (normative) Ripple test
Appendix B (Normative Appendix) Test System Uncertainty Analysis
Appendix C (Normative Appendix) Head Model and Tissue Fluid Formulation
Appendix D (normative) TIRP and TIRS calculation method
Appendix E (normative appendix) Manpower model definition and requirements
Appendix F (normative appendix) Use of manual model
Foreword
This standard in accordance with GB/T 1.1 -2009 "Standardization of work guidelines Part 1. the standard structure and the preparation of rules", GB/T
1.2-2002 "Standardization work guidelines Part 2. Criteria for the determination of the content of normative technical elements"
write.
The following standards are relevant to the technical content of this standard. During the development of this standard, the following standards are also noted.
Regulate one.
YD/T 1214-2002 900/1800MH. TDMA digital cellular mobile communication network general packet radio service equipment technology
Seeking. mobile station;
YD C 023-2003 800 MH. CDMA 1X digital mobile communication network equipment Test method. Mobile station Part 1. Base
This wireless indicator, function and performance.
This standard is a revised version of YD/T 1484-2006, and the main technical differences with the revised standard are.
1. Added GPRS/EDGE related testing requirements;
2. Added CDMA 1xRTT related test requirements;
3. Added cdma2000 related test requirements;
4. Added test requirements for notebook configuration;
5. Increased manpower model related testing requirements;
6. Update the standard limits.
This standard is proposed by the China Communications Standardization Association.
The drafting of this standard. Ministry of Industry and Information Technology Telecommunications Research Institute, China Telecom Group Corporation, China Mobile Communications Group
Company, ZTE Corporation, Huawei Technologies Co., Ltd.
The main drafters of this standard. Guo Lin, Xiao Li, Xie Yuming, Zhang Xinghai, Yu Zhong, Li Wenwen, Liu Qifei, Wang Na, Zhou
North Qi, Yang Meng, An Xudong.
This standard was first published in June.2006, this time for the first revision.
Mobile station space radio frequency radiated power and receiver performance
Measurement methods
1 Scope
This standard specifies the mobile radio frequency radio frequency and receiver performance measurement methods, including the frequency range and limit
value.
This standard applies to portable and in-vehicle mobile stations and is also suitable for applications powered by AC power supplies and in fixed positions.
With the mobile station and through the USB interface, Express interface and PCMCIA interface interface connected to the portable computer
Data device.
2 normative reference documents
The following documents are indispensable for the application of this document. Note the date of the reference file, only the date of the date of the note
Apply to this document. For undated references, the latest edition (including all modifications) applies to this document.
3GPP2 C.S0011-B..2002 cdma2000 mobile station minimum performance recommended standard
Minimum performance recommendations for high - speed access terminals for cdma2000 3GPP2 C.S0033-0..2004
IEEE 1528 determines the peak spatial mean specific absorptivity generated by the wireless communication device in the human body
(SAR) recommended guidelines. experimental methods
3GPP TS 51.010 Mobile Station Compliance Specification
3GPP TS 05.05 GSM/DGE Wireless Access Network Technical Specifications. Wireless Transmit and Receive
3 terms, definitions and abbreviations
3.1 Terms and definitions
The following terms and definitions apply to this document.
3.1.1
Total Isotropic Radiant Power
The radio frequency radiated power integration value of the mobile station in the space three-dimensional sphere reflects the mobile station's transmission in all directions
Sex.
3.1.2
Total Isotropic Radial Sensitivity
The reception sensitivity of the mobile station in the space three-dimensional sphere reflects the mobile station's reception in all directions.
Sex.
3.1.3
Minimum Forward Link Power Minimum Forward-Link Power
The minimum power sent by the base station when the bit error rate (or frame error rate) of the mobile station reaches a certain level.
3.1.4
Near Horizon Partial Isotropic Radial Power
The mobile station in the vicinity of the horizontal plane within a certain angle within the radiation power integral value, reflecting the mobile station in this angle range
Within the launch characteristics.
3.1.5
Near - Horizontal Radial Sensitivity to Near Horizontal Partial Isotropic Radial Sensitivity
The mobile station in the vicinity of the horizontal plane within a certain angle within the receiver sensitivity integral value, reflecting the mobile station in this angle
Reception characteristics within the periphery.
3.2 Abbreviations
The following abbreviations apply to this document.
BER Bit Error Ratio
BLER Block Error Ratio
CS Coding Scheme
ERP Ear Reference Point
EUT Equipment Under Test
FER Fmme Error Rate
MS Mobile Station
MCS Modulation Coding Scheme
PER Packet Error Ratio
RF radio frequency
RMS Root Mean Square RMS value
4 test conditions
In order to measure the three-dimensional radio frequency radiated power and receiver performance of the mobile station, this standard specifies the spherical equivalent of the mobile station
The omnidirectional radiated power, referred to as Total Isotropic Radiated Power (TIRP) and spherical equivalent omnidirectional radiated
Sensitivity, referred to as Total Isotropic Radiated Sensitivity (TIRS). As the mobile station is in
The measurement results in the free space state and the measurement knots in various test states such as the left and right ears of the head model and the manpower model
Fruit may be different from each other, so this standard requires the need to carry out the corresponding sections of the communication system under the provisions of all the test state
test. For mobile stations that support multiple typical operating states, only tests are required in main machine mode.
With the development of technology and the emergence of the new standard of space RF radiation power and receiver performance testing methods to the corresponding
Product family test method prevail. If there is no relevant product family standard reference, then the standard of the 5.2 and 6.1 of the pass
Subject to the test method.
4.1 coordinate system
Figure 1 is a typical spherical coordinate system, Phi (φ) axis is the Z axis, Theta angle is defined as the measurement point and the Z axis
Angle, Phi angle is defined as the angle between the projection of the measuring point on the XY plane and the X axis.
After defining the spherical coordinate system, two orthogonal polarization directions for each measurement point are defined. the Phi polarization direction is defined as
Phi axis rotation direction, Theta polarization direction is defined as the direction of movement of theta axis rotation, as shown in Figure 2.
Figure 2 shows the antenna polarization diagram
This standard assumes that the EUT supports are in the Z-axis direction and therefore can cause the data points at Theta = 180 ° to be measured,
So the area of the spherical measurement coverage area (based on the 15 degree step) does not include | θ | > 165 °.
4.2 Measurement of general conditions
The test is carried out in the darkroom of the all-wave antenna, and the distance between the EUT rotation center and the center of the measurement antenna must be greater than
The minimum test distance R (see Appendix A), the entire measurement system in the implementation of all the tests required by this standard, its comprehensive expansion
The uncertainty should be less than 2.25 dB (see Appendix B). EUT support fixture structure must be able to meet the free space for mobile stations,
Head model left and right ears of a total of three test conditions, and the use of radioactive materials.
For ease of testing, two positioning systems are defined based on the spherical test method. the distributed axis system and the combined shaft system. distributed
The shaft system means that the two rotary axes are independent of each other, see Fig. 3 (a), where the measuring antenna rotates around the Theta axis and the EUT surrounds
Phi axis rotation. The two axes of rotation of the combined shaft system are joined together, see Fig. 3 (b), where the axis
The EUT is mounted on the two axes while the Phi axis locator is mounted.
Figure 3 Typical distribution axis system and combined shaft system
Based on the above positioning system definition of two measurement scanning method.
(1) Cone cutting method. Combined shaft system and distributed shaft system can achieve cone cutting method. At this point, scan the trajectory
A cone consisting of a series of angles of the same angle. Θ = 0 ° and θ = 180 ° without testing. During the test, measure the day
The line is positioned at a starting angle θ, the EU rotates 360 ° around the φ axis, the measuring antenna moves to the next θ angle, repeating the above steps
To measure. When measuring radio frequency radiated power and receiver performance, in order to reduce the EUT complex position caused by the measurement is not
The determination of Eθ and Eφ requires simultaneous testing.
(2) large round cut method. only the combination of shaft system to achieve a large round cut method, then scan the trajectory for a series of φ angle
The same point of the composition of the big round. During the test, the measurement antenna is positioned at a starting angle φ, the EUT is rotated 180 ° around the θ axis,
Measure the antenna to the next angle φ, repeat the above steps to measure. In the radio frequency radiation power and receiver performance test
, Eθ and Eφ are required to be tested simultaneously in order to reduce the measurement uncertainty caused by the EUT complex position.
Combined Shaft System Typical Test Configuration As shown in Figure 4, the typical test configuration of the distribution axis system is shown in Figure 5. Others have
A positioning system that is similar in polarization characteristics and can obtain data points at a specified location can also be used for testing.
Figure 4 Typical test configuration of the combined shaft system under free space
Figure 5 Typical test configuration of free space distribution axis system
According to the EUT type, respectively, in the following cases to test.
1) free space. EUT placed above the turntable, the center of the three-dimensional rotation axis for the mobile station Xin position, Xin tube position set
See IEEE-1528. Figure 6 and Figure 7, respectively, for the straight and folding mobile stations in the free space test conditions under the coordinate system
, Where the longitudinal axis of the mobile station is the Z axis and the right hand rule defines the X and Y axes.
Figure 6 Straight-motion mobile station free space coordinate system
Figure 7 Folding mobile station free space coordinate system
2) only head model. head model placed above the turntable, EUT close to the head model. Due to EUT in the head model
The measured data may be different in both cases, so this standard requires testing in both cases,
The formulation of the model tissue fluid is given in Appendix C.
Figure 8 is the coordinate system when the mobile station is placed on the head model. At this time, the Z axis points to the top of the head model,
Define the X and Y axes, and the Y axis is pierced by the left ear, as shown by the solid line in Figure 8.
Figure 8 Header model coordinate system
The test process to try to avoid the test ears in the top of the situation, in this case, if the head contains bubbles, may be
To the wrong result. In order to reduce the measurement uncertainty, the head model should be filled with tissue fluid to remove the bubble, this standard
At least once a week to check the state of the tissue fluid, the head model after a long period of time placed, all the bubbles after the convergence of diameter
Should be less than 2cm.
3) head and manpower model. This standard only requires the right ear in the right ear and the case of the right to test. Manpower model
Definitions and requirements are given in Appendix E, and the selection and use of manpower models are given in Appendix F.
At this point, the head model placed above the turntable, EUT placed in the corresponding manpower model, and then placed on the head model,
Requires EUT and the head model of the cheek angle of 6 °. In the test report, the test of the manpower model used is given in detail
Arrangement, and need to attach the test layout.
The coordinate system in this configuration is consistent with the coordinate system in the head model only.
In view of the current simulation of human head simulation of the human test results under the situation is not enough, so this standard only requires mobile end
The performance of the antenna performance in the simulated human head simulation scenario is worse than that in the pure simulated head scene
In the required value. To be tested after the results of sufficient verification, and then the corresponding model to simulate the human head of the simulation
Limit.
Table 1 Simulation of the performance requirements of the antenna under simulated man-made scenes
Frequency band hand model type antenna performance degradation requirements
< 1GHz clamshell hand model < 6dB
Other hand model < 8dB
> 1GHz clamshell hand model < 4dB
Other hand model < 6dB
4) Only manpower model. This standard only requires testing in the right hand model. The definition and requirements of the manpower model are given in the appendix
E, the choice and use of man-made model see Appendix F.
At this point, place the EUT in the corresponding man-made model and deviate from the vertical plane by 45 °. In the test report, given in detail
The use of the manual model of the test layout, and the need to test pictures.
Figure 9 shows the coordinate system when the mobile station is placed on the manpower model. Where the L line is perpendicular to the display and passes through its midpoint,
The M line is parallel to the horizontal axis of the display and the M line intersects the L line at the midpoint of the display.
Define the midpoint of the display as the coordinate origin, Y axis along the M line to the right side of the mobile station, X axis pointing to the top of the display,
And below the L line with its 45 ° angle. The Z axis points to the top of the display and is at an angle of 45 ° above the L line.
Figure 9 man-made model coordinate system
5) notebook model. notebook model is divided into data modules embedded in the notebook mode (such as the Internet) and data model
The block is inserted into the notebook mode (eg USB data terminal).
A. The data module is embedded in the notebook mode
A.1 configuration requirements
The notebook operating system should be in the idle state, the other reference to the following settings. If necessary, the manufacturer should provide such as
Why should EUT be set to the following state?
·monitor
The Laptop or ultra-portable mobile PC (notebook shape) angle settings
• The angle from the horizontal base to the front end of the monitor LCD is 110 ± 5 °.
The manufacturer locks the position close to 110 °
The The tablet needs to be parallel to the XY plane
• The transmission status of the wireless signal
In addition to the wireless modules used, turn off other embedded modules, such as wireless LAN modules, Bluetooth modules, etc.
• Receive diversity is turned off
· Power management settings
Computer screen protection is none
Turn off the monitor one never
Close the hardware one never
The system sleeps never
System standby one never
· Display (LCD) backlight intensity - medium intensity (50% or equivalent to 50% strength)
The Ambient light sensor is closed
• The keyboard backlight turns off
The Ambient light sensor is closed
· Battery-powered (standard battery only)
• Dynamic control or energy saving of CPU and bus clock frequencies - if possible, turn off related settings
The EUT of the retractable antenna is only tested in the configuration recommended by the antenna manufacturer
A.2 Test layout
To reduce the physical volume of the EUT in the test link, the rotation center is defined as the EUT three-dimensional geometric center. usually,
Open the laptop rotation center is generally above the keyboard, the display before the space a little.
This section defines two types of positioning methods for notebook computers and tablets.
laptop
The EUT reference plane is defined as the EUT body horizontal base plane. The plane is perpendicular to the darkroom Phi axis. Place EUT
Into the dark room, the laptop on the horizontal plane and open, adjust the LCD display and the horizontal angle of 110 °,
Position and mark points A to H, point H is at the intersection of the AB and DE connections on the LCD surface. As shown in Figure 10.
Figure 10 Notebook computer positioning method
For the distribution axis conical cut dark room, the notebook on the turntable center base, EUT screen X-axis orientation
Phi = 0 °, theta = 90 ° direction. Assuming that the darkroom laser crosshair system points to phi = 270 °, theta = 90 ° direction,
Turn the turntable to the phi = 270 ° position. Adjust the height of the turntable so that the horizontal beam of the crosshairs intersects at the point H. Then, along
Y-axis direction to adjust the notebook position, so that the vertical beam through the A, B, C and H points.
Turn the turntable back to the phi = 0 ° position and adjust the notebook along the EUTX axis so that the vertical beam passes through the F and G points. in case
It is necessary to place an object at the point F behind the EUT to observe the position of the vertical laser beam. The turntable returns to phi = 270 °
And re-check the alignment. If necessary, repeatable.
For the combination of large shaft cut dark room, the notebook body fixed on the Phi axis fixture, making Phi rotation axis in the
BC connection and FG connection. Rotate the EUT around the Phi axis until the X direction of the notebook is down vertically (monitor
Face down).
Adjust the base along the Phi axis until the point H is aligned with the Theta axis, which can be traversed by a vertical line or laser locator
Test. Turn the Phi axis back to Phi = 0 ° and re-check whether theta axis passes through points D and E. If necessary
repeat.
tablet
For the EUT in tablet form, assume that the display is in the Z direction and the X direction points to the desired user position. by
In such devices often support multiple display directions, the manufacturer should specify the assumed EUT reference coordinate system. These instructions should be included
Included in the test report.
Before placing the EUT into the darkroom, locate and identify a series of auxiliary positioning points such as point A to K, as shown in Figure 11
Show.
Figure 11 Tablet PC location method
For the distribution axis conical darkroom, place the tablet on the center of the turntable with the EUT X axis facing
Phi = 0 °, theta = 90 ° direction. Since the darkroom laser crosshair system is assumed to be in the direction of phi = 270 °, theta = 90 °,
Adjust the tablet height to make the crosshair horizontal beam at point B.
Adjust the position along the EUTX axis so that the vertical laser beam intersects at points A, B, C, and J. If necessary, place a thing
The body is behind the EUT in order to observe the position of the vertical laser beam.
Turn the turntable to the position of phi = 90 ° and adjust the tablet computer along the Y axis of the EUT so that the vertical laser beam passes through G, H,
I and K points. If necessary, place an object to the KUT after the EUT so as to observe the position of the vertical laser beam. Turntable
Return to phi = 0 ° position, re-check alignment. If necessary, repeatable.
For the combination of large shaft cut dark room, the EUT body fixed on the Phi axis fixture, so that the center of the Phi rotation axis
AJ connection and GK connection.
Rotate the EUT ar...
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