CN112532326B - Millimeter wave multi-probe communication performance test system - Google Patents
Millimeter wave multi-probe communication performance test system Download PDFInfo
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- CN112532326B CN112532326B CN202011392323.1A CN202011392323A CN112532326B CN 112532326 B CN112532326 B CN 112532326B CN 202011392323 A CN202011392323 A CN 202011392323A CN 112532326 B CN112532326 B CN 112532326B
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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
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3912—Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
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Abstract
A millimeter wave multi-probe communication performance test system comprises a control terminal, an input end, a base station darkroom, a signal processing device and a terminal darkroom, wherein the base station darkroom comprises a base station darkroom, a base station antenna positioned in the base station darkroom, a base station antenna bracket, a dual-polarization probe antenna and a supporting mechanism, the base station antenna transmits a received 5G-NR-FR2 frequency band signal to the dual-polarization probe antenna through wireless, the dual-polarization probe antenna transmits the received 5G-NR-FR2 frequency band signal to the signal processing device through a signal line, the terminal darkroom comprises a terminal darkroom, a multi-probe antenna positioned in the terminal darkroom, a terminal device and a terminal bracket, the signal processing device transmits the 5G-NR-FR2 frequency band signal after analog processing to the multi-probe antenna through the signal line, and the multi-probe antenna transmits the received 5G-NR-FR2 frequency band signal to the terminal device through wireless; the method has the advantage that the simulation test of the communication performance of the external field environment of the 5G NR FR2 frequency band can be realized in a laboratory environment.
Description
Technical Field
The invention relates to the technical field of communication testing, in particular to a millimeter wave multi-probe communication performance testing system.
Background
Three application scenes defined by 5GNR, namely 1 and eMB (enhanced Mobile Broadband) enhanced Mobile Broadband; 2. Low-Latency and high-reliability Communication of uRLLC (Ultra Reliable & Low Latency Communication); 3. mMTC (Massive Machine Type Communication) mass Internet of things Communication; the eMB is mainly applied to a scene with high communication bandwidth; the 5GNR mainly consists of two frequency bands, namely FR1 (sub 6G) and FR2 (mmWave), previous generations of mobile communication work in the sub6G frequency band, because the sub6G working frequency is relatively low, the available bandwidth is less, the available resources are less, and from the communication principle, the bandwidth is a relation condition for determining the communication rate, so that the 5GNR realizes that the high communication bandwidth is mainly performed in the FR2, namely the millimeter wave frequency band, and the FR2 frequency band has the spectrum resources with larger bandwidth.
The 5G transmitting frequency band is directly transmitted in a linear adjustable angle mode, the 4G transmitting frequency band is diffused in a horn shape, the 5G has the advantages of high transmission speed and strong transmission signals, but the transmission distance is close to that of 4G, so that a plurality of 5G base stations are required to be established to realize stable coverage of the 5G signals, along with the progress of the information era, the requirements of civilian use and military use on the signals are higher and higher, but the performance detection equipment and system of the 5GNR are not mature at present by communication operators, a set of complete and accurate test equipment is not provided, and hidden dangers are left for the coverage construction of the 5G signals in the later period.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a millimeter wave multi-probe communication performance test system capable of realizing the simulation test of the communication performance of the field environment outside the 5G-NR-FR2 frequency band, which is used for overcoming the defects in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a millimeter wave multi-probe communication performance test system comprises a control terminal, an input end, a base station darkroom, a signal processing device and a terminal darkroom, wherein the control terminal respectively controls the input end, the base station darkroom, the signal processing device and the terminal darkroom to work, the base station darkroom comprises a base station darkroom, a base station antenna bracket, a dual-polarization probe antenna and a supporting mechanism, the base station antenna is positioned on the base station antenna bracket, a base station slide rail surrounding the base station antenna bracket is also arranged in the base station darkroom, the dual-polarization probe antenna is arranged on the base station slide rail through the supporting mechanism, the input end transmits a 5G-NR-FR2 frequency band signal to the base station antenna through a signal wire, the base station antenna wirelessly transmits the received 5G-NR-FR2 frequency band signal to a dual-polarized probe antenna, the dual-polarized probe antenna transmits the received 5G-NR-FR2 frequency band signal to a signal processing device through a signal line, the terminal darkroom comprises a terminal anechoic chamber, a multi-probe antenna, a terminal device and a terminal bracket, the multi-probe antenna is positioned on the terminal bracket and positioned on one side of the terminal device, the signal processing device transmits the 5G-NR-FR2 frequency band signal after analog processing to the multi-probe antenna through the signal line, the multi-probe antenna wirelessly transmits the received 5G-NR-FR2 frequency band signal to the terminal device, the terminal device verifies the received wireless signal, and if the verification is correct, the multi-probe antenna transmits a response signal (ACK) to the base station darkroom 3 along an opposite path, if the verification is wrong, a non-response signal (NACK) is sent to the base station darkroom along the opposite path, the base station antenna in the base station darkroom continues to transmit subsequent data when receiving the response signal, and if the non-response signal is received, the previous group of signals are retransmitted.
Further, the signal processing device comprises a base station end frequency converter, a channel simulator and a terminal frequency converter, wherein the base station end frequency converter converts the received 5G-NR-FR2 frequency band signal into a 5G-NR-FR1 frequency band signal and then transmits the 5G-NR-FR1 frequency band signal to the channel simulator through a signal line, the channel simulator guides the received 5G-NR-FR1 frequency band signal into a channel model and transmits the channel model to the terminal frequency converter through the signal line, and the terminal frequency converter converts the received 5G-NR-FR1 frequency band signal guided into the channel model into a 5G-NR-FR2 frequency band signal and transmits the 5G-NR-FR2 frequency band signal to the multi-probe antenna through the signal line.
Furthermore, a first motor controller is arranged outside the base station darkroom, the first motor controller controls the movement of the base station antenna support and the movement of the supporting mechanism respectively, a second motor controller is arranged outside the terminal darkroom, the second motor controller controls the movement of the terminal support, and the control terminal is in control connection with the first motor controller and the second motor controller respectively.
Further, supporting mechanism includes support column, vertical adjusting part and angle adjusting part, vertical adjusting part includes vertical slider, locating part and guide post, the guide post slip cap is established on the support column, vertical slider is connected in support column and guide post junction one side, vertical slider sliding connection is on the basic station slide rail, the basic station slide rail is passed to the one end of support column, the locating part is connected on vertical slider and presss from both sides tightly on the guide post, angle adjusting part includes revolving stage, angle displacement platform and laser seat, the revolving stage is located the guide post top, the angle displacement platform includes fixed part and skew portion, the fixed part is located the revolving stage upper surface, the upper surface of fixed part is equipped with the arcwall face, the bottom of skew portion is equipped with the first convex surface identical with the arcwall face, the laser seat is located skew portion upper surface, dual polarization probe antenna sets up at the laser seat upper surface.
Further, many probe antennas include upper plate, hypoplastron and multiunit antenna mechanism, the upper plate is located the hypoplastron top, upper plate and hypoplastron are formed by a plurality of arc splices, be equipped with the arc slide rail on the opposite face of upper plate and hypoplastron respectively, the multiunit antenna mechanism all includes top slide, lower slide, spliced pole, arc guide rail and antenna module, top slide sliding connection is on the arc slide rail of upper plate, lower slide sliding connection is on the arc slide rail of hypoplastron, the both ends of spliced pole are connected respectively on top slide and lower slide, the arc guide both ends are connected respectively on top slide and lower slide, the equal perpendicular to upper plate of arc guide and hypoplastron, antenna module sliding connection is on the arc guide rail.
Further, base station antenna boom includes a frame foundation and a base station base, base station base upper end has the arc wall, be equipped with the slide on the arc wall, frame foundation bottom be equipped with arc wall assorted second convex surface, frame foundation sliding connection is on base station base, base station base one side is equipped with the gliding first power supply of driving frame foundation on base station base.
Further, the terminal support includes that terminal revolving stage, terminal erect cover and loading board, terminal revolving stage bottom surface is equipped with the second power supply, the second power supply drive the terminal revolving stage rotates on the horizontal plane, be equipped with horizontally terminal slide rail in the terminal revolving stage, the terminal erects cover one end sliding connection on the terminal slide rail, including third power supply and drive belt in the terminal erects the cover, the third power supply is located terminal and erects the cover bottom, be fixed with terminal equipment on the loading board, loading board one side is equipped with the pivot, the pivot is passed through the bearing and is rotated and connect and erect the cover top at the terminal, the drive belt is connected between pivot and third power supply, the drive belt drive the drive belt moves so that the loading board rotates along the radial direction of pivot in vertical direction.
Furthermore, the included angle between the two polar points of the vertical sliding block sliding on the base station sliding rail and taking the sliding rail as the circle center is 50 degrees, and the included angle between the two polar points of the offset part rotating on the fixed part is 20 degrees.
Furthermore, a plurality of fixing rods are arranged between the arc-shaped guide rail and the connecting column.
Furthermore, the bottom of the terminal turntable is also provided with a plurality of auxiliary wheels which are annularly arrayed by taking the circle of the terminal turntable as a central point, and the rotating surfaces of the auxiliary wheels act on the bottom surface of the terminal turntable.
The invention has the beneficial effects that: through the signal transmission of the base station antenna and the dual-polarization multi-probe antenna in the base station darkroom, the dual-polarization multi-probe antenna transmits the received signals to the signal processing device for processing, the signal processing device transmits the processed signals to the terminal darkroom, the multi-probe antenna in the terminal darkroom transmits the received signals to the terminal equipment, and the terminal equipment performs conversion calculation on the received signals and compares the converted signals with a preset value, so that the simulation test of the communication performance of the 5G FRNR 2 frequency band external field environment can be realized in a laboratory environment.
Drawings
FIG. 1 is a structural view of embodiment 1;
FIG. 2 is a structural view of embodiment 2;
FIG. 3 is a structural view of embodiment 3;
FIG. 4 is a block diagram of a dual polarized probe antenna and support mechanism of the present invention;
FIG. 5 is a perspective view of a multi-probe antenna of the present invention;
FIG. 6 is a side view of a multi-probe antenna of the present invention;
FIG. 7 is a block diagram of a base station antenna mount of the present invention;
fig. 8 is an overall structural view of a terminal holder according to the present invention;
fig. 9 is a sectional view of a terminal holder according to the present invention.
Reference numerals: 1. a control terminal; 2. an input end; 3. a base station darkroom; 4. a signal processing device; 41. a base station side frequency converter; 42. a channel emulator; 43. a terminal frequency converter; 5. a terminal darkroom; 6. a base station antenna; 7. a base station antenna mount; 71. a support base; 72. a base station base; 73. an arc-shaped slot; 74. a slideway; 75. a second convex surface; 76. a first power source; 8. a dual polarized probe antenna; 9. a support mechanism; 91. a support column; 92. a vertical slider; 93. a limiting member; 94. a guide post; 95. a rotating table; 96. an angular displacement table; 961. a fixed part; 962. a shift section; 97. a laser seat; 10. a base station slide rail; 11. a multi-probe antenna; 111. an upper plate; 112. a lower plate; 113. an antenna mechanism; 1131. an upper slide seat; 1132. a lower slide seat; 1133. connecting columns; 1134. an arc-shaped guide rail; 1135. an antenna assembly; 114. an arc-shaped slide rail; 12. a terminal support; 121. a terminal turntable; 122. a terminal vertical sleeve; 123. a carrier plate; 124. a second power source; 125. a terminal slide rail; 126. a third power source; 127. a transmission belt; 128. a rotating shaft; 129. an auxiliary wheel; 13. a first motor controller; 14. a second motor controller; 15. a communication comprehensive tester; 16. a vector network analyzer; 17. and (5) fixing the rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiments of the invention will be described in further detail below with reference to the accompanying drawings:
the system is used for realizing the performance test of a 5G NR FR2 frequency band, the system is divided according to the base station equipment side, if the base station is adopted for testing, the building scheme of the embodiment 1 is adopted, if the base station simulator is adopted, the building scheme of the embodiment 2 is adopted, and if the environment of the passive antenna radiation performance test is built, the building scheme of the embodiment 3 is adopted.
Example 1:
as the information age progresses, the requirements of civilian use and military use on signals are higher and higher, but at present, communication operators are still immature in performance detection equipment and system of 5GNR, a set of complete and accurate test equipment is not available, and hidden dangers are left for the later 5G signal coverage construction; therefore, the millimeter wave multi-probe communication performance test system is designed, wireless communication is divided into an uplink and a downlink, wherein the uplink is from a base station to a terminal, the uplink is from the terminal to the base station, the signal flow direction of the uplink and the downlink is opposite, as shown in fig. 1, the millimeter wave multi-probe communication performance test system comprises a control terminal 1, an input end 2, a base station darkroom 3, a signal processing device 4 and a terminal darkroom 5, the control terminal 1 respectively controls the input end 2, the base station darkroom 3, the signal processing device 4 and the terminal darkroom 5 to work (the control terminal 1 is a computer and a gateway, the input end 2 is a core network, the computer is connected with a gateway control line, and the gateway is connected with the core network, a structure in the base station darkroom 3, the signal processing device 4 and a structure in the terminal darkroom 5 by control lines), the base station darkroom 3 comprises a base station darkroom, a base station antenna 6, a base station antenna bracket 7, a dual-polarized probe antenna 8 and a supporting mechanism 9 (the base station darkroom is used for isolating the environment from the outside and providing a clean electromagnetic environment for testing), the base station antenna 6 is arranged on the base station antenna bracket 7, a base station slide rail 10 surrounding the base station antenna bracket 7 is also arranged in the base station darkroom, the dual-polarized probe antenna 8 is arranged on the base station slide rail 10 through the supporting mechanism 9, the 5G-NR-FR2 frequency band signal is transmitted to the base station antenna 6 through a signal wire by the input end 2, the base station antenna 6 wirelessly transmits the received 5G-NR-FR2 frequency band signal to the dual-polarized probe antenna 8, the dual-polarized probe antenna 8 transmits the received 5G-NR-FR2 frequency band signal to the signal processing device 4 through the signal wire, the base station darkroom 3 is externally provided with a first motor controller 13, the first motor controller 13 respectively controls the movement of the base station antenna support 7 and the movement of the support mechanism 9, the base station antenna support 7 can adjust the orientation angle position of the base station antenna 6, the support mechanism 9 can adjust the height of the dual-polarized multi-probe antenna 11, the angle towards the base station antenna 6 and the sliding position on the base station slide rail 10, because the stability and the strength of signals transmitted by the base station antenna 6 to the dual-polarized probe antenna 8 during the test process are related to the position angles of the two, the position angles can be adjusted to find an optimal test point during the test process, the terminal darkroom 5 comprises a terminal darkroom and the multi-probe antenna 11, terminal equipment and a terminal support 12 which are positioned in the terminal darkroom (the terminal darkroom is used for isolating the external environment, providing a clean electromagnetic environment for testing), the terminal equipment is positioned on a terminal bracket 12, a multi-probe antenna 11 is positioned at one side of the terminal equipment, a signal processing device 4 transmits 5G-NR-FR2 frequency band signals after analog processing to the multi-probe antenna 11 through a signal line, the multi-probe antenna 11 wirelessly transmits the received 5G-NR-FR2 frequency band signals to the terminal equipment, the terminal equipment verifies the received wireless signals, if the verification is correct, a response signal (ACK) is transmitted to a base station darkroom 3 along an opposite path, if the verification is incorrect, a non-response signal (NACK) is transmitted to the base station darkroom 3 along the opposite path, the base station antenna 6 in the base station darkroom 3 continuously transmits subsequent data if the response signal is received, and if the non-response signal is received, the previous group of signals is retransmitted, the second motor controller 14 is arranged outside the terminal darkroom 5, the second motor controller 14 controls the support of the terminal 1 to move, the terminal support 12 can adjust the angular position of the terminal device, the angular position of the terminal device can be continuously adjusted in the test signal receiving process to find an optimal stable point of a received signal, so that the test simulation result is optimal, and the control terminal 1 is respectively in control connection with the first motor controller 13 and the second motor controller 14.
As shown in fig. 1, the signal processing apparatus 4 includes a base station side frequency converter 41, a channel emulator 42, and a terminal frequency converter 43 (since the channel emulator 42 only supports a sub 6GHz band at present, the frequency band is an FR1 frequency band, and a frequency band of a signal received by the base station side frequency converter 41 is an FR2, the base station side frequency converter 41 can convert the FR2 into an FR1 and transmit the FR1 to the channel emulator 42, and the terminal frequency converter 43 can convert the FR1 output by the channel emulator 42 into an FR2 and transmit the FR2 to the terminal darkroom 5. The two frequency converters in the present invention adopt an external frequency converter mode, which can be placed as close to the probe antenna as possible to reduce high frequency loss as much as possible, and the external frequency converter supports a Time Division Duplex (TDD) mode and can perform time synchronization with the base station or the base station emulator), the base station side frequency converter 41 converts a received 5G-NR-FR2 frequency band signal into a 5G-NR-FR1 frequency band signal and transmits the 5G-NR-FR1 frequency band signal to the channel emulator 42 after converting a received 5G-NR-FR2 frequency band signal into a 5G-NR-FR2 frequency band signal, and the terminal frequency band model can be transmitted to the terminal frequency band by the FR2 signal via the FR2 signal transmission line, and the terminal frequency converter 42.
As shown in fig. 4, the supporting mechanism 9 includes a supporting column 91, a vertical adjusting assembly and an angle adjusting assembly, the vertical adjusting assembly includes a vertical slider 92, a limiting member 93 and a guiding column 94, the guiding column 94 is slidably sleeved on the supporting column 91, the vertical slider 92 is connected to one side of the connection between the supporting column 91 and the guiding column 94, the vertical slider 92 is slidably connected to the base station slide rail 10, one end of the supporting column 91 passes through the base station slide rail 10, the limiting member 93 is connected to the vertical slider 92 and is clamped on the guiding column 94 (the guiding column 94 is used for adjusting the linear distance of the dual-polarized probe antenna 8 from the anechoic chamber of the base station, the range is 0-400 mm), as shown in fig. 1, a plurality of dual-polarized probe antennas 8 are correspondingly arranged on the base station slide rail 10, and the supporting mechanisms 9 slide on the base station slide rail 10 through the vertical slider 92, then the included angle between two polar points of the vertical slider 92 sliding on the base station slide rail 10 is 50 degrees by taking the slide rail as a circle center, that is, the sliding distance of the vertical slider 92 sliding on the base station slide rail 10 is ± 25 degrees, the angle adjusting assembly comprises a rotary table 95, an angular displacement table 96 and a laser seat 97, the rotary table 95 is located at the top end of the guide post 94 (the rotation angle range of the rotary table 95 is 0-360 degrees), the angular displacement table 96 comprises a fixing portion 961 and an offset portion 962, the fixing portion 961 is located on the upper surface of the rotary table 95, the upper surface of the fixing portion 961 is provided with an arc surface, the bottom of the offset portion 962 is provided with a first convex surface matching with the arc surface, the laser seat 962 is located on the upper surface of the offset portion 962, the dual-polarized probe antenna 8 is arranged on the upper surface of the laser seat 97 (the laser seat 97 is used for installing laser, calibrating the antenna adjustment, and confirming that the antenna head is aligned with the transmitting end), the offset portion 962 rotates by sliding the first convex surface on the arc-shaped surface of the fixing portion 961, so that the orientation angle rotation of the dual-polarized probe antenna 8 is realized, and the included angle between two polar points of the offset portion 962 rotating on the fixing portion 961 is 20 °.
As shown in fig. 5-6, the multi-probe antenna 11 includes an upper plate 111, a lower plate 112, and multiple antenna mechanisms 113, where the upper plate 111 is located above the lower plate 112, the upper plate 111 and the lower plate 112 are formed by splicing a plurality of arc plates, arc-shaped rails 114 are respectively disposed on the opposite surfaces of the upper plate 111 and the lower plate 112, the multiple antenna mechanisms 113 each include an upper slider 1131, a lower slider 1132, a connecting column 1133, an arc-shaped guide rail 1134, and an antenna assembly 1135 (in the present invention, the antenna assembly 1135 is the same as the dual-polarization probe antenna 8 and the supporting assembly), the upper slider 1131 is slidably connected to the arc-shaped rail 114 of the upper plate 111, the lower slider 1132 is slidably connected to the arc-shaped rail 114 of the lower plate 112, two ends of the connecting column 1133 are respectively connected to the upper slider 1131 and the lower slider 1132, two ends of the arc-shaped guide rail 1134 are respectively connected to the upper slider 1131 and the lower slider 1134, the arc-shaped guide rail 1134 is perpendicular to the upper plate 111 and the lower plate 112, the antenna assembly 1135 is slidably connected to the arc-shaped guide rail 1134, and multiple fixing rods are further disposed between the arc-shaped guide rail 1133 (the fixing rods 11317 are used to strengthen the arc-shaped guide rail 1134. The multi-probe antenna 11 moves on a hemisphere equivalently, and the arc-shaped slide rails 114 and the arc-shaped guide rails 1134 are arranged to enable the multi-probe antenna 11 to move back and forth along the radius direction of the sphere, that is, the distance between the probe antenna and the sphere can be adjusted, like the longitude and the latitude of the earth, the transmitting ends of the antenna assemblies 1135 on the arc-shaped guide rails 1134 all face the terminal equipment, and simulation of different channels can be realized at different probe positions (including angles and distances).
As shown in fig. 7, the base station antenna support 7 includes a support base 71 and a base station base 72, an arc-shaped groove 73 is formed at the upper end of the base station base 72, a slide 74 is formed on the arc-shaped groove 73, a second convex surface 75 matched with the arc-shaped groove 73 is formed at the bottom of the support base 71, the support base 71 is slidably connected to the base station base 72, a first power source 76 (motor) for driving the support base 71 to slide on the base station base 72 is arranged at one side of the base station base 72, the base station antenna 6 in the present invention is connected to a vertical rod of the support base 71, the motor rotates to drive the support base 71 to slide in the arc-shaped groove 73 of the base station base 72, and when the support base 71 slides, the base station antenna 6 on the support base 71 can tilt, so as to realize the angle adjustment of the base station antenna 6.
As shown in fig. 8-9, the terminal support 12 includes a terminal turntable 121, a terminal vertical sleeve 122 and a bearing plate 123, the bottom surface of the terminal turntable 121 is provided with a second power source 124 (a motor), the second power source 124 drives the terminal turntable 121 to rotate on a horizontal plane (the bottom of the terminal turntable 121 is further provided with a plurality of auxiliary wheels 129 annularly arrayed with a center point of the circle of the terminal turntable 121, a rotating surface of the auxiliary wheels 129 acts on the bottom surface of the terminal turntable 121, such that when the motor drives the terminal turntable 121 to rotate, the auxiliary wheels 129 can support the terminal turntable 121 to make the terminal turntable 121 rotate smoothly), the terminal turntable 121 is provided with a horizontal terminal sliding rail 125, one end of the terminal vertical sleeve 122 is slidably connected to the terminal sliding rail 125 (the terminal vertical sleeve 122 can translate on the terminal sliding rail 125, so that the terminal device on the terminal vertical sleeve 122 can approach or depart from the multi-probe antenna 11 for testing), the terminal vertical sleeve 122 includes a third power source 126 (a motor) and a transmission belt 127, the third power source 126 is located at the bottom end of the terminal vertical sleeve 122, the bearing plate 123 is fixed on the bearing plate 123, the bearing belt 128, and the bearing belt 123 is a vertical transmission belt 123, the third power source 123 is a vertical transmission belt 123, which can rotate along the direction, and the vertical transmission belt 128 is fixed on the vertical transmission belt 123.
Example 2:
a base station simulator is used for simulation test, as shown in fig. 2, the darkroom 3 of the base station in embodiment 1 is replaced by the comprehensive communication tester 15, the base station end frequency converter 41 is omitted, the comprehensive communication tester 15 directly transmits the FR1 frequency band signal required by the channel simulator 42 to the channel simulator 42 through a bidirectional signal transmission line, the channel simulator 42 introduces the received signal into a corresponding channel model, then transmits the FR1 frequency band signal introduced into the channel model into the terminal frequency converter 43 through the bidirectional signal transmission line, the terminal frequency converter 43 converts the FR1 frequency band signal into the FR2 frequency band signal required by the darkroom 5 of the terminal, the terminal frequency converter 43 transmits the signal required by the multi-probe antenna 11 in the darkroom 5 of the terminal through the bidirectional signal transmission line, simulation of different channel simulation can be simulated under the action of the multi-probe antenna 11, and then the signal is wirelessly transmitted to the terminal device for processing and comparison, wherein the channel simulator 42 and the terminal frequency converter 43 are the same as those in embodiment 1, and the probe multi-antenna 11 in the darkroom 5 of the terminal device and the terminal bracket 12 are the same as those in embodiment 1.
Example 3:
an environment setup test for passive antenna radiation performance test is shown in fig. 3, a base station darkroom 3 and a signal processing device 4 in embodiment 1 are eliminated, and are replaced by a vector network analyzer 16 (a device for passive antenna measurement), the vector network analyzer 16 transmits signals to a multi-probe antenna 11 in a terminal darkroom 5 through signal lines, and then the signals are wirelessly transmitted to a terminal device on a terminal support 12 through the multi-probe antenna 11, the terminal device at the position is an AUT (an antenna to be tested, a passive antenna to be tested), wherein one multi-probe antenna 11 connected with the vector network analyzer 16 through lines is required to be at the same height as the AUT on one side and be opposite to the position, the other end of the vector network analyzer 16 is directly connected with the AUT, and finally measurement is performed to obtain test data.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. The utility model provides a millimeter wave multi-probe communication capability test system which characterized in that: the system comprises a control terminal (1), an input end (2), a base station darkroom (3), a signal processing device (4) and a terminal darkroom (5), wherein the control terminal (1) respectively controls the input end (2), the base station darkroom (3), the signal processing device (4) and the terminal darkroom (5) to work, the base station darkroom (3) comprises a base station anechoic chamber, a base station antenna (6), a base station antenna bracket (7), a dual-polarization probe antenna (8) and a supporting mechanism (9), the base station antenna (6) is arranged on the base station antenna bracket (7), a base station sliding rail (10) surrounding the base station antenna bracket (7) is further arranged in the base station anechoic chamber, the dual-polarization probe antenna (8) is arranged on the base station sliding rail (10) through the supporting mechanism (9), the input end (2) transmits a 5G-NR-FR2 frequency band signal to the base station antenna (6) through a signal line, the base station antenna (6) transmits a received 5G-NR-FR2 frequency band signal to the base station antenna (6) through a wireless probe, the base station antenna (8) transmits a received 5G-NR-FR2 frequency band signal to the terminal darkroom through the terminal anechoic chamber (5) and the terminal anechoic chamber (5) through a multi-NR-terminal anechoic chamber signal processing device (11) including a multi-terminal anechoic chamber signal processing device (11) which is arranged in the base station anechoic chamber (8), and the base station anechoic chamber (5) and the terminal anechoic chamber (6) and the terminal anechoic chamber which is arranged in which is arranged outside the base station anechoic chamber, the terminal equipment is positioned on the terminal support (12), the multi-probe antenna (11) is positioned on one side of the terminal equipment, the signal processing device (4) transmits the 5G-NR-FR2 frequency band signal after analog processing to the multi-probe antenna (11) through a signal line, the multi-probe antenna (11) wirelessly transmits the received 5G-NR-FR2 frequency band signal to the terminal equipment, the terminal equipment verifies the received wireless signal, if the verification is correct, a response signal (ACK) is transmitted to the base station darkroom (3) along the reverse path, if the verification is wrong, a non-response signal (NACK) is transmitted to the base station darkroom (3) along the reverse path, the base station antenna (6) in the base station darkroom (3) continues to transmit subsequent data if the response signal is received, and if the non-response signal is received, the previous group of signals is retransmitted;
supporting mechanism (9) include support column (91), vertical adjusting part and angle adjusting part, vertical adjusting part includes vertical slider (92), locating part (93) and guide post (94), guide post (94) slip cover is established on support column (91), vertical slider (92) are connected on support column (91) and guide post (94) junction one side, vertical slider (92) sliding connection is on base station slide rail (10), base station slide rail (10) is passed to the one end of support column (91), locating part (93) are connected on vertical slider (92) and are pressed from both sides tightly on guide post (94), angle adjusting part includes revolving stage (95), angle displacement platform (96) and laser seat (97), revolving stage (95) are located guide post (94) top, angle displacement platform (96) include fixed part (961) and skew portion (962), fixed part (961) are located revolving stage (95) upper surface, the upper surface of fixed part (961) is equipped with the arcwall face, the bottom of skew portion (96) is equipped with the fixed part (97) and the first laser seat (97) is located the antenna offset portion (962), the surface of dual polarization portion (97) is located the laser seat (97) upper surface of laser seat (962), probe (8) sets up.
2. The millimeter wave multi-probe communication performance testing system of claim 1, wherein: the signal processing device (4) comprises a base station end frequency converter (41), a channel simulator (42) and a terminal frequency converter (43), wherein the base station end frequency converter (41) converts a received 5G-NR-FR2 frequency band signal into a 5G-NR-FR1 frequency band signal, and then transmits the 5G-NR-FR1 frequency band signal to the channel simulator (42) through a signal line, the channel simulator (42) guides the received 5G-NR-FR1 frequency band signal into a channel model and transmits the channel model to the terminal frequency converter (43) through the signal line, and the terminal frequency converter (43) converts the received 5G-NR-FR1 frequency band signal guided into the channel model and transmits the 5G-NR-FR2 frequency band signal to the multi-probe antenna (11) through the signal line.
3. The millimeter wave multi-probe communication performance testing system of claim 1, wherein: the base station darkroom (3) is provided with a first motor controller (13) externally, the first motor controller (13) controls the movement of the base station antenna bracket (7) and the movement of the supporting mechanism (9) respectively, the terminal darkroom (5) is externally provided with a second motor controller (14), the second motor controller (14) controls the bracket movement of the terminal (1), and the control terminal (1) is in control connection with the first motor controller (13) and the second motor controller (14) respectively.
4. The millimeter wave multi-probe communication performance testing system of claim 1, wherein: multi-probe antenna (11) include upper plate (111), hypoplastron (112) and multiunit antenna mechanism (113), upper plate (111) are located hypoplastron (112) top, upper plate (111) and hypoplastron (112) are formed by a plurality of arc splices, be equipped with arc slide rail (114) on the opposite face of upper plate (111) and hypoplastron (112) respectively, the multiunit antenna mechanism (113) all include on slide (1131), lower slide (1132), spliced pole (1133), arc guide rail (1134) and antenna module (1135), on slide (1131) sliding connection on arc slide (114) of upper plate (111), slide (1132) sliding connection is on arc slide (114) of hypoplastron (112) down, the both ends of spliced pole (1133) are connected respectively on upper slide (1131) and lower slide (1132), arc guide rail (1134) both ends are connected respectively on upper slide (1131) and lower slide (1132), arc guide rail (1134) all connect perpendicularly to upper plate (111) and antenna module (1135), arc guide rail (1135) upper slide (1134) and lower slide.
5. The millimeter wave multi-probe communication performance testing system of claim 1, wherein: base station antenna boom (7) is including a support base (71) and base station base (72), base station base (72) upper end has arc wall (73), be equipped with slide (74) on arc wall (73), support base (71) bottom is equipped with arc wall (73) assorted second convex surface (75), support base (71) sliding connection is on base station base (72), base station base (72) one side is equipped with gliding first power supply (76) of drive support base (71) on base station base (72).
6. The millimeter wave multi-probe communication performance testing system of claim 1, wherein: the terminal support (12) comprises a terminal rotary table (121), a terminal vertical sleeve (122) and a bearing plate (123), a second power source (124) is arranged on the bottom surface of the terminal rotary table (121), the second power source (124) drives the terminal rotary table (121) to rotate on the horizontal plane, a horizontal terminal sliding rail (125) is arranged in the terminal rotary table (121), one end of the terminal vertical sleeve (122) is connected to the terminal sliding rail (125) in a sliding mode, a third power source (126) and a transmission belt (127) are arranged in the terminal vertical sleeve (122), the third power source (126) is located at the bottom end of the terminal vertical sleeve (122), terminal equipment is fixed on the bearing plate (123), a rotating shaft (128) is arranged on one side of the bearing plate (123), the rotating shaft (128) is connected to the top end of the terminal vertical sleeve (122) in a rotating mode through a bearing, the transmission belt (127) is connected between the rotating shaft (128) and the third power source (126), and the third power source (126) drives the transmission belt (127) to move in the vertical direction so that the bearing plate (123) rotates along the radial direction of the rotating shaft (128).
7. The millimeter wave multi-probe communication performance testing system of claim 1, wherein: the included angle between two polar points of the vertical sliding block (92) sliding on the base station sliding rail (10) by taking the sliding rail as a circle center is 50 degrees, and the included angle between two polar points of the offset part (962) rotating on the fixing part (961) is 20 degrees.
8. The millimeter wave multi-probe communication performance testing system of claim 4, wherein: and a plurality of fixing rods (17) are also arranged between the arc-shaped guide rail (1134) and the connecting column (1133).
9. The millimeter wave multi-probe communication performance testing system of claim 6, wherein: the bottom of the terminal turntable (121) is also provided with a plurality of auxiliary wheels (129) which are annularly arrayed by taking the circle of the terminal turntable (121) as a central point, and the rotating surface of each auxiliary wheel (129) acts on the bottom surface of the terminal turntable (121).
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| CN113092882B (en) * | 2021-04-01 | 2024-04-05 | 杭州永谐科技有限公司东莞分公司 | Multi-probe antenna mounting bracket |
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| BR112020009693A2 (en) * | 2017-11-17 | 2020-10-13 | Telefonaktiebolaget Lm Ericsson (Publ) | systems and methods for setting up a radio link monitoring evaluation period |
| US11316577B2 (en) * | 2018-05-11 | 2022-04-26 | Qualcomm Incorporated | Signaling of control resource set (CORESET) |
| CN109889239B (en) * | 2019-03-27 | 2020-12-08 | 北京邮电大学 | Double-darkroom structure for MIMO OTA test and test method |
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