CN107154825A - The OTA test systems and method of NB IoT equipment - Google Patents
The OTA test systems and method of NB IoT equipment Download PDFInfo
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- CN107154825A CN107154825A CN201710495407.XA CN201710495407A CN107154825A CN 107154825 A CN107154825 A CN 107154825A CN 201710495407 A CN201710495407 A CN 201710495407A CN 107154825 A CN107154825 A CN 107154825A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0087—Monitoring; Testing using service channels; using auxiliary channels using auxiliary channels or channel simulators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of OTA test systems of NB IoT equipment and method.Wherein, the system includes：Darkroom；Turntable, is arranged in darkroom, and for placing Devices to test, Devices to test is the arrowband internet of things equipment based on Cellular Networks；Loop aerial support frame, is vertically set in darkroom, and multiple antennas are dispersed with loop aerial support frame；Control terminal；And comprehensive test instrument, it is connected with Devices to test and control terminal, emitting performance and receptivity for measuring Devices to test under the control of control terminal.The present invention solves the technical problem for the OTA test systems for not being directed to NB IoT equipment also in the prior art.
Description
Technical field
The present invention relates to OTA testing fields, in particular to the OTA test systems and method of a kind of NB-IoT equipment.
Background technology
The current test that complete machine radiance is increasingly paid close attention in radio-frequency performance of wireless terminal test, this radiance
Reflect the final emitting performance and receptivity of wireless terminal.Mainly tested at present by two methods：One is from day
The radiance of line is judged that this is more traditional antenna test method, referred to as non-source test；Two be dark in specific microwave
Interior, tests the radiant power and receiving sensitivity of wireless terminal, referred to as active test, OTA (Over The Air's writes a Chinese character in simplified form)
Test belongs to active test.The current active performance of complete machine is increasingly paid attention to by manufacturer terminal, and active test stresses from wireless
The radiance of equipment is investigated in terms of the transmission power and receiving sensitivity of messaging device, tests whole in specific microwave dark room
Machine more can directly reflect the radiance of mobile phone complete machine in the transmission power and receiving sensitivity of three dimensions all directions；
Non-source test then measures the crucial radiation parameter such as gain, efficiency, directional diagram of antenna, and the performance of antenna is judged accordingly.
The OTA test systems of traditional test wireless terminal are divided into two processes of calibration and test, and its alignment flow includes：
1) connection measurement antenna (loudspeaker) polarizes for Theta, calibration antenna gain direction direction measurement antenna；2) setting net point output work
Rate measurement frequency range measurement points intermediate-frequency bandwidth；3) P0 ends are as output end, and P2 ends are used as input, net point measurement S21 parameters, note
Record value is S21；4) setting measurement antenna polarizes for Phi, and calibration steps is identical with Theta polarization.Therefore Loss=-S21+G-
L1, G are dipole antenna gain；L1 is the path loss of P0-P1 ports, and testing process includes TRP (total radiant power, Total
Radiate Power's writes a Chinese character in simplified form) test and TIS (total omnidirectional sensitivity, Total Isotropic Sensitivity's writes a Chinese character in simplified form)
Test, is typically measured in wherein TRP tests using high, normal, basic three channels.When measuring emitting performance, electromagnetic horn conduct
Communication antenna is used, and for comprehensive test instrument and mobile station foundation connection, connection carries out TRP tests after being successfully established, for each letter
Road, each antenna polarization direction carries out following testing process：1) comprehensive test instrument parameter is set：Standard, channel, cell power is set up
Calling, setting communication, levels etc.；2) turntable θ=15 ° are set, switch the respective antenna and polarised direction of Φ=0 degree position；Set
Frequency spectrograph frequency is channel correspondence upstream frequency, triggers pattern, detecting way, triggering level, sampling number；Switch Φ=15 degree
Position, repeats 4 until switching to 345 degree of aerial positions；Turntable is gone into θ=15 °, 3-5 is repeated until θ=165 ° pass through the whole world
Data calculate TRP；For each channel in TIS tests, each antenna polarization direction carries out following testing process：1) set comprehensive
Survey instrument parameter：Standard is set, channel, cell power sets up calling, sets communication, levels；2) turntable θ=30 ° are set, switch Φ
The respective antenna and polarised direction of=0 degree of position；3) cell power is reduced, BLER is read, adjustment steps to bit error rate requirement, remembers
The power output of record now；4) switch Φ=60 degree position, repeat 4 until switching to 330 degree of aerial positions (30 ° are stepping)；
5) turntable is gone into θ=60 °, repeats 3-5 until θ=150 ° (30 ° are stepping) 6) calculate omnidirectional sensibility TIS.
NB-IoT (being based on cellular arrowband Internet of Things, Narrow Band Internet of Things' writes a Chinese character in simplified form) conduct
One important branch of Internet of Things, with advantages such as low-power consumption, wide coverings.Become as a development of following Internet of Things branch
Gesture, NB-IoT popularization can be more and more.In order to understand the performance of NB-IoT equipment, it is necessary to a set of fairly perfect test system,
And it is not directed to the OTA test systems of NB-IoT equipment also in the prior art.
For it is above-mentioned in the prior art also not be directed to NB-IoT equipment OTA test systems the problem of, not yet carry at present
Go out effective solution.
The content of the invention
The embodiments of the invention provide a kind of OTA test systems of NB-IoT equipment and method, at least to solve existing skill
The technical problem of the OTA test systems of NB-IoT equipment is not directed in art also.
One side according to embodiments of the present invention there is provided a kind of OTA test systems of NB-IoT equipment, including：Secretly
Room；Turntable, is arranged in darkroom, and for placing Devices to test, Devices to test is the arrowband internet of things equipment based on Cellular Networks；Ring
Shape antenna support frame, is vertically set in darkroom and is set around turntable, multiple antennas are dispersed with loop aerial support frame；Control
Terminal processed；And comprehensive test instrument, it is connected with Devices to test and control terminal, for measuring Devices to test under the control of control terminal
Emitting performance and receptivity.
Further, system also includes：Network Analyzer, is connected with control terminal, under the control of control terminal
Each item data of system is calibrated.
Further, system also includes：Turntable controller, is connected with control terminal, under the control of control terminal
Turntable is controlled to rotate.
Further, system also includes：RF switch case, is connected with control terminal, under the control of control terminal
Measure and/or alignment path switching.
Further, system also includes：Speed-sensitive switch case, is connected with control terminal and antenna, in control terminal
The lower switching antenna of control.
Further, system also includes：Frequency spectrograph, is connected with control terminal and antenna, for the control in control terminal
The frequency spectrum data of lower measurement Devices to test and/or antenna.
Further, the angle between 15 antennas, 15 antenna each two antennas is provided with loop aerial support frame
At intervals of 22.5 degree.
Another aspect according to embodiments of the present invention, additionally provides a kind of OTA method of testings of NB-IoT equipment, is applied to
The OTA test systems of above-mentioned NB-IoT equipment, method includes：The method cut using circular cone determines the measurement point of device under test；
Turntable is controlled to rotate and Antenna Operation；When being located at measurement point in the position of turntable and in running order antenna, treat
The emitting performance and receptivity of measurement equipment are tested.
Further, the method cut using circular cone determines the measurement point of device under test, including：Centered on Devices to test
Set up spherical coordinates；First angle, which is respectively separated, in the θ axles of spherical coordinates takes a measurement point and between the φ axles difference of spherical coordinates
A measurement point is taken every second angle.
Further, when the emitting performance of device under test is tested, first angle is 22.5 degree, and second angle is 15
Degree；When the receptivity of device under test is tested, first angle and second angle are 30 degree.
In embodiments of the present invention, by configuring darkroom, turntable, the loop aerial support frame for being provided with multiple antennas, control
Terminal processed and comprehensive test instrument, construct a set of OTA test systems for NB-IoT equipment, to measure the transmitting of NB-IoT equipment
Performance and receptivity, it is achieved thereby that the scope of extension OTA tests, adds the technology effect of the performance test of NB-IoT equipment
Really, so solve in the prior art also not be directed to NB-IoT equipment OTA test systems technical problem.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of schematic diagram of the OTA test systems of NB-IoT equipment according to embodiments of the present invention；
Fig. 2 is a kind of schematic diagram of the OTA test systems of optional NB-IoT equipment according to embodiments of the present invention；
Fig. 3 is a kind of schematic diagram of the OTA test systems of optional NB-IoT equipment according to embodiments of the present invention；And
Fig. 4 is a kind of schematic diagram of the OTA method of testings of NB-IoT equipment according to embodiments of the present invention.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model that the present invention is protected
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Lid is non-exclusive to be included, for example, the process, method, system, product or the equipment that contain series of steps or unit are not necessarily limited to
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
Embodiment 1
There is provided a kind of product embodiments of the OTA test systems of NB-IoT equipment, Fig. 1, figure according to embodiments of the present invention
2 and Fig. 3 is the OTA test systems of NB-IoT equipment according to embodiments of the present invention, as shown in Figure 1, Figure 2 and Figure 3, the system bag
Include：Darkroom 10；Turntable 11, is arranged in darkroom 10, and for placing Devices to test 15, Devices to test 15 is based on the narrow of Cellular Networks
Band internet of things equipment；Loop aerial support frame 12, is vertically set in darkroom 10 and is set around turntable 11, loop aerial support
Multiple antennas 121 are dispersed with frame 12；Control terminal 13；And comprehensive test instrument 14, it is connected with Devices to test 15 and control terminal 13,
Emitting performance and receptivity for measuring Devices to test 15 under the control of control terminal 13.
Specifically, darkroom 10 uses fully anechoic chamber, when specifically testing, Devices to test 15 needs to be placed in darkroom 10
Row performance test, generally, the size rule of NB-IoT equipment will not be very big, therefore darkroom 10 can use compact dark
Room 10 is to save space, and specific size can be designed according to actual conditions.Optionally, testing frequency range in darkroom 10 can be with
For 700M-6GHz, interval ensures Shielding Attenuation >=70dB, and the concrete structure in darkroom 10 can be long cube
Body structure, including shield and the metal support structure outside shield, metal support structure use complete self-support structure,
Shield can be played a supporting role, wherein, the material of metal support structure can be provided with suction ripple material in steel, shield
Material, to ensure the technical performance of anechoic chamber, 10, the electrical property of absorbing material plays decisive role to the dead-space characteristic in darkroom 10,
Physical property also directly affects structure and the safe handling in darkroom 10.
Specifically, turntable 11 itself can be rotated in the horizontal direction, because Devices to test 15 is placed on turntable 11
On, therefore Devices to test 15 can be driven to be rotated, so as to adjust the position of Devices to test 15；As shown in Figures 2 and 3, ring
Shape antenna support frame 12 is arranged in darkroom 10, and the position relationship of loop aerial support frame 12 and turntable 11 can be：Turn
The axis of platform 11, which passes through on the center of loop aerial support frame 12, turntable 11, to be placed after Devices to test 15, the position of Devices to test 15
Put and just at the center of loop aerial support frame 12 or be similar to the center of loop aerial support frame 12.As shown in figure 3, annular day
Multiple antennas 121 are provided with line support frame 12, are also known as popped one's head in, can be used for launching and receiving measurement number as measurement antenna
According to directionality is stronger, and gain is higher, and comprehensive test instrument 14 can pass through multiple probes and Devices to test 15 with anolog base station in testing
Radiofrequency signal interaction is carried out, coordinates the rotation in the horizontal direction of turntable 11, the property of the Devices to test 15 of diverse location can be tested
Can, wherein, the performance includes emitting performance and receptivity, and multiple antennas 121 can receive test performance, wherein, comprehensive test instrument
14 can be connected by being set up between communication antenna and Devices to test 15, and control terminal 13 can control cutting for multiple antennas 121
Change.
Specifically, control terminal 13 can specifically be mounted in the automatic test software in the terminals such as computer, this is automatic
Change test software can with the integrated operation of control system, including in system each equipment and test parameter configuration, environment configurations, road
Footpath switching, calibration and test, generation test report etc..
In embodiments of the present invention, the loop aerial branch by configuring darkroom 10, turntable 11, being provided with multiple antennas 121
Support 12, control terminal 13 and comprehensive test instrument 14, construct a set of OTA test systems for NB-IoT equipment, to measure NB-
The emitting performance and receptivity of IoT equipment, it is achieved thereby that the scope of extension OTA tests, adds the property of NB-IoT equipment
The technique effect that can be tested, and then solve the technology for the OTA test systems for not being directed to NB-IoT equipment also in the prior art
Problem.
Herein it should be noted that the Devices to test 15 in the present invention is referred to as NB-IoT equipment, but it is of the invention
The OTA test systems for the NB-IoT equipment that embodiment is provided are not limited in the performance test for NB-IoT equipment.
In a kind of optional embodiment, as shown in figure 3, system also includes：Network Analyzer 20, connects with control terminal 13
Connect, for being calibrated under the control of control terminal 13 to each item data of system.
In a kind of optional embodiment, as shown in figure 3, system also includes：Turntable controller 21, connects with control terminal 13
Connect, for controlling turntable 11 to rotate under the control of control terminal 13.
Specifically, the rotation of the control turntable 11 of turntable controller 21 and stopping operating, and turntable 11 can be adjusted rotate
Rotating speed.
In a kind of optional embodiment, as shown in figure 3, system also includes：RF switch case 22, connects with control terminal 13
Connect, for measured under the control of control terminal 13 and/or alignment path switching, complete circuit switching.
In a kind of optional embodiment, as shown in figure 3, system also includes：Speed-sensitive switch case 23, with control terminal 13 and
Antenna 121 is connected, for switching antenna 121 under the control of control terminal 13.
Specifically, as shown in figure 3, speed-sensitive switch case 23 can be arranged in darkroom 10.
In a kind of optional embodiment, as shown in figure 3, system also includes：Frequency spectrograph 24, with control terminal 13 and antenna
121 connections, the frequency spectrum data for measuring Devices to test 15 and/or antenna 121 under the control of control terminal 13.
In a kind of optional embodiment, as shown in figure 3, system also includes：15 are provided with loop aerial support frame 12
Angle between individual 121,15 each two antennas 121 of antenna 121 of antenna is at intervals of 22.5 degree.
Herein it should be noted that herein the angle between the described each two antenna 121 of 15 antennas 121 at intervals of
22.5 degree refer to, since first antenna 121, and an antenna 121 is set on loop aerial support frame 12 every 22.5 degree,
Not 22.5 degree of angle interval between first antenna 121 and last antenna 121.
In a kind of optional embodiment, as shown in figure 3, system also includes：Power analysis instrument 25, with control terminal 13 and
Devices to test 15 is connected, for providing power supply and carrying out power analysis and control.
Herein it should be noted that Fig. 3 is a kind of entity structure diagram of the OTA test systems of optional NB-IoT equipment,
Therefore, comprehensive test instrument 14, Network Analyzer 20, turntable controller 21, RF switch case 22, frequency spectrograph 24 and power analysis instrument 25 can
To be integrated in a cabinet, an integral device is formed, is attached with darkroom 10 and control terminal 13.
Embodiment 2
According to embodiments of the present invention there is provided a kind of embodiment of the method for the OTA method of testings of NB-IoT equipment, it is necessary to say
It is bright, it can be held the step of the flow of accompanying drawing is illustrated in the computer system of such as one group computer executable instructions
OK, and, although show logical order in flow charts, but in some cases, can be with different from order herein
Perform shown or described step.
Fig. 4 is the OTA method of testings of NB-IoT equipment according to embodiments of the present invention, and this method can apply to above-mentioned
The OTA test systems of NB-IoT equipment, as shown in figure 4, this method comprises the following steps：
Step S102, the method cut using circular cone determines the measurement point of device under test；
Step S104, control turntable is rotated and Antenna Operation；
Step S106, when being located at measurement point in the position of turntable and in running order antenna, device under test
Emitting performance and receptivity are tested.
Herein it should be noted that the Devices to test in the present invention is referred to as NB-IoT equipment, but the present invention is real
The OTA method of testings for applying the NB-IoT equipment that example is provided are not limited in performance test for NB-IoT equipment.
In a kind of optional embodiment, the method cut in step S102 using circular cone determines the measurement of device under test
Point, including：
Step S202, sets up spherical coordinates centered on Devices to test；
Step S204, is respectively separated first angle in the θ axles of spherical coordinates and takes a measurement point and the φ axles in spherical coordinates
It is respectively separated second angle and takes a measurement point.
Specifically, the embodiment of the present invention is when device under test is tested, the method device under test cut using circular cone
It is scanned, the track of scanning is the circular cone that a series of θ angles identical point is constituted, wherein, when θ=0 degree and θ=180 degree not
With test, in test process, measurement antenna is positioned at a starting θ angle, and Devices to test is rotated by 360 ° around Φ axles, next θ angles
Measurement Antenna Operation, repeat the above steps and measure, carry out RF radiation power and receiver performance test when, in order to
Reduce Devices to test and position caused uncertainty of measurement again, E θ and E Φ requirements are tested simultaneously, and Devices to test is reported to comprehensive test instrument
Its power received in broadband measured.
In a kind of optional embodiment, when the emitting performance of device under test is tested, first angle is 22.5 degree,
Second angle is 15 degree；When the receptivity of device under test is tested, first angle and second angle are 30 degree.
Specifically, when the emitting performance of device under test is tested, passing through the diverse location around Devices to test is spherical
Measure Devices to test EIRP (peak value EIRP, Effective Isotropic Radiated Power letter
Write) the radio-frequency radiation performance of Devices to test is weighed, assessed by analyzing the measurement data of each measurement point on sphere effectively
Radiant power, obtains the three-dimensional radiation characteristic of Devices to test, specifically can at the vertical plane interval of spherical coordinates 22.5 degree take 1 survey
Point is measured, 15 degree of horizontal plane interval takes 1 measurement point, i.e., can fully describe the far field radiation pattern and total omnidirectional's spoke of Devices to test
Penetrate power.When the receptivity of device under test is tested, by measuring Devices to test in certain bit error rate (BER), by mistake frame
Minimal forward link power under the conditions of rate (FER) or Block Error Rate (BLER) weighs the receiver performance of Devices to test, can be with
Tested according to preset rules under the worst configuration of Devices to test receiving sensitivity, by analyzing each measurement point on sphere
Measurement data assess effective receiver sensitivity, obtain the three-dimensional receiver identity of Devices to test, specifically, in spherical coordinates
θ axles and Φ axles be respectively separated 30 degree and take 1 measurement point, i.e., can fully describe total receiving sensitivity of Devices to test.
In a kind of optional embodiment, in actual test, the test system and method for testing of the embodiment of the present invention are used
Obtained test result has higher repeatability and reliability, and the error of test data can be controlled within 2dB.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in some embodiment
The part of detailed description, may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, others can be passed through
Mode is realized.Wherein, device embodiment described above is only schematical, such as division of described unit, Ke Yiwei
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of unit or module by some interfaces
Connect, can be electrical or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or used
When, it can be stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially
The part contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are to cause a computer
Equipment (can for personal computer, server or network equipment etc.) perform each embodiment methods described of the invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of OTA test systems of NB-IoT equipment, it is characterised in that including：
Darkroom；
Turntable, is arranged in the darkroom, and for placing Devices to test, the Devices to test is the arrowband Internet of Things based on Cellular Networks
Net equipment；
Loop aerial support frame, is vertically set in the darkroom and is set around the turntable, the loop aerial support frame
On be dispersed with multiple antennas；
Control terminal；And
Comprehensive test instrument, is connected with the Devices to test and the control terminal, for measuring institute under the control of the control terminal
State the emitting performance and receptivity of Devices to test.
2. system according to claim 1, it is characterised in that the system also includes：
Network Analyzer, is connected with the control terminal, under the control of the control terminal to the items of the system
Data are calibrated.
3. system according to claim 1, it is characterised in that the system also includes：
Turntable controller, is connected with the control terminal, for controlling the turntable to rotate under the control of the control terminal.
4. system according to claim 1, it is characterised in that the system also includes：
RF switch case, is connected with the control terminal, for measuring and/or calibrating under the control of the control terminal
The switching in path.
5. system according to claim 1, it is characterised in that the system also includes：
Speed-sensitive switch case, is connected with the control terminal and the antenna, for switching institute under the control of the control terminal
State antenna.
6. system according to claim 1, it is characterised in that the system also includes：
Frequency spectrograph, is connected with the control terminal and the antenna, for being treated described in the measurement under the control of the control terminal
The frequency spectrum data of measurement equipment and/or the antenna.
7. system according to claim 1, it is characterised in that 15 antennas are provided with the loop aerial support frame,
Angle between 15 antennas each two antenna is at intervals of 22.5 degree.
8. a kind of OTA method of testings of NB-IoT equipment, it is characterised in that applied to described in any one in claim 1-7
NB-IoT equipment OTA test systems, methods described includes：
The method cut using circular cone determines the measurement point of device under test；
Turntable is controlled to rotate and Antenna Operation；
When being located at the measurement point in the position of the turntable and the in running order antenna, to the Devices to test
Emitting performance and receptivity tested.
9. method according to claim 8, it is characterised in that the method cut using circular cone determines the measurement of device under test
Point, including：
Spherical coordinates is set up centered on the Devices to test；
First angle, which is respectively separated, in the θ axles of the spherical coordinates takes a measurement point and between the φ axles difference of the spherical coordinates
A measurement point is taken every second angle.
10. method according to claim 9, it is characterised in that when testing the emitting performance of the Devices to test,
The first angle is 22.5 degree, and the second angle is 15 degree；When testing the receptivity of the Devices to test, institute
It is 30 degree to state first angle and the second angle.
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| CN108134636A (en) * | 2018-03-01 | 2018-06-08 | 上海鸿洛通信电子有限公司 | OTA tests darkroom and test system |
| CN108566647A (en) * | 2018-06-11 | 2018-09-21 | 东莞市慧眼数字技术有限公司 | Signal test system based on NB-IOT networks and method |
| CN108802506A (en) * | 2018-06-20 | 2018-11-13 | Oppo广东移动通信有限公司 | The Antenna testing system and test method of terminal device |
| CN108833028A (en) * | 2018-04-25 | 2018-11-16 | 深圳市共进电子股份有限公司 | Radiant power test device |
| CN109039832A (en) * | 2018-09-29 | 2018-12-18 | 安徽众家云物联网科技有限公司 | A kind of intelligent appliance communication reliability test method |
| CN110086550A (en) * | 2018-01-22 | 2019-08-02 | 中国移动通信有限公司研究院 | A kind of full temperature OTA test device and method |
| CN110149159A (en) * | 2019-03-30 | 2019-08-20 | 深圳市新益技术有限公司 | Antenna sensitivity test method based on NB-IoT |
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| CN110086550B (en) * | 2018-01-22 | 2022-04-08 | 中国移动通信有限公司研究院 | Full-temperature OTA testing device and method |
| CN110086550A (en) * | 2018-01-22 | 2019-08-02 | 中国移动通信有限公司研究院 | A kind of full temperature OTA test device and method |
| CN108134636B (en) * | 2018-03-01 | 2023-05-26 | 上海鸿洛通信电子有限公司 | OTA test darkroom and test system |
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| CN110708125B (en) * | 2019-10-29 | 2020-09-01 | 北京邮电大学 | Method for constructing dynamic target channel and air interface test system |
| CN111537766A (en) * | 2020-04-22 | 2020-08-14 | 福州物联网开放实验室有限公司 | Support fixture suitable for different terminal antennas in darkroom OTA test |
| CN112769502A (en) * | 2020-12-29 | 2021-05-07 | 南京湃睿半导体有限公司 | Production rapid testing method for integrated narrowband Internet of things communication module |
| CN113533866A (en) * | 2021-07-09 | 2021-10-22 | 西安博瑞集信电子科技有限公司 | Antenna test and direction demonstration system, antenna test method and antenna direction demonstration method |
| CN113572545A (en) * | 2021-08-06 | 2021-10-29 | 福州物联网开放实验室有限公司 | Active performance rapid test method and device based on terminal antenna reciprocity |
| CN113572545B (en) * | 2021-08-06 | 2023-04-18 | 福州物联网开放实验室有限公司 | Active performance rapid test method and device based on terminal antenna reciprocity |
| CN114374444A (en) * | 2021-12-27 | 2022-04-19 | 重庆长安汽车股份有限公司 | Wireless test method and system for radio frequency performance of vehicle-mounted Bluetooth device |
| CN116366175A (en) * | 2023-05-26 | 2023-06-30 | 北京星河亮点技术股份有限公司 | Power measurement method, device, system, electronic equipment and storage medium |
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