CN114553327A - System and method for testing wireless resource management consistency of multi-angle-of-arrival millimeter wave terminal - Google Patents
System and method for testing wireless resource management consistency of multi-angle-of-arrival millimeter wave terminal Download PDFInfo
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- H—ELECTRICITY
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- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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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
- H04B17/0085—Monitoring; Testing using service channels; using auxiliary channels using test signal generators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a system and a method for testing the consistency of the wireless resource management of a multi-angle-of-arrival millimeter wave terminal, wherein the system comprises the following steps: the system comprises a feed source system, a metamaterial lens array, a carrying rotary table, a test instrument and a change-over switch box; electromagnetic waves radiated by the feed source system are reflected or transmitted by the metamaterial lens array to form plane waves including downlink signals; the feed source system receives electromagnetic waves which are reflected by the tested equipment and then reflected or transmitted by the metamaterial lens array, wherein the electromagnetic waves comprise uplink signals; the carrying rotary table is positioned in the range of the plane wave quiet zone and used for carrying the tested equipment and adjusting the angle of the tested equipment; the test instrument is used for measuring and analyzing the uplink signal and the downlink signal; and the switch box is used for switching the uplink signals and the downlink signals of the feed source system and the test instrument. The method realizes the test of the wireless resource management under multiple arrival angles, improves the dynamic range of a test system, and solves the problem of the arrival angle in the consistency test of the wireless resource management of the 5G millimeter wave terminal.
Description
Technical Field
The application relates to the technical field of wireless communication measurement, in particular to a system and a method for testing the consistency of wireless resource management of a multi-arrival-angle millimeter wave terminal.
Background
The new generation 5G (fifth generation) mobile technology needs to achieve higher spectral efficiency in a limited frequency band, and 3GPP (third generation partnership project) discusses and introduces Massive MIMO (multiple input multiple output) technology and extends to a working frequency band of millimeter waves to improve cell capacity and user experience rate. In 5G FR1 frequency band and 4G terminal devices, a conduction mode of direct connection of radio frequency cables is mostly adopted to test the consistency of radio resource management. However, in the FR2 frequency band, the connection between the device rf unit and the antenna is more compact and highly integrated, and there is no port available for performing the consistency test of radio resource management.
Fig. 1 is a schematic diagram of a system for testing the radio resource management consistency of a millimeter wave terminal in the prior art. As shown in fig. 1, the existing millimeter wave terminal wireless resource management consistency test system includes a reflector, a feed system, a millimeter wave link-building antenna, a 4G link-building antenna, a turntable, a darkroom, an instrument, and a control system. The test system can realize the test of Radio Resource Management (RRM) under a single angle of arrival, but can not meet the test of two angle of arrival requirements in 3 GPP.
Disclosure of Invention
The embodiment of the application provides a system and a method for testing the wireless resource management consistency of a multi-arrival-angle millimeter wave terminal, solves the problem that the distance of a plane wave feed source generated in the prior art is long, can adjust spherical electromagnetic waves to achieve the effect of plane waves at a short distance and at a low cost, and realizes the testing capability of a far field and a compact field.
The embodiment of the application provides a system for testing the consistency of the management of wireless resources of a multi-angle-of-arrival millimeter wave terminal, which comprises: the system comprises a feed source system, a metamaterial lens array, a carrying rotary table, a test instrument and a change-over switch box;
electromagnetic waves radiated by the feed source system are reflected or transmitted by the metamaterial lens array to form plane waves including downlink signals; the feed source system receives electromagnetic waves which are reflected by the tested equipment and then reflected or transmitted by the metamaterial lens array, wherein the electromagnetic waves comprise uplink signals; the loading rotary table is positioned in the range of the plane wave quiet zone and used for carrying the tested equipment and adjusting the angle of the tested equipment;
the test instrument is used for measuring and analyzing the uplink signal and the downlink signal;
and the switch box is used for switching the uplink signals and the downlink signals of the feed source system and the test instrument.
Furthermore, the metamaterial lens array is multiple and is used for generating the plane waves in the set incoming wave direction respectively.
Further, the polarization mode of the feed source system comprises single linear polarization, double linear polarization or circular polarization.
Further, the generation point of the plane wave is between 50cm and 150cm from the metamaterial lens array.
Furthermore, the metamaterial lens array is composed of 1 or more layers of dielectric substrates arranged in parallel and a metal array structure positioned on the dielectric substrates.
On the other hand, the invention provides a method for testing the consistency of the management of the wireless resources of a multi-angle-of-arrival millimeter wave terminal, which comprises the following steps:
electromagnetic waves radiated by a feed source system are reflected or transmitted by the metamaterial lens array to form plane waves including downlink signals;
the feed source system receives electromagnetic waves which are reflected by the tested equipment and then reflected or transmitted by the metamaterial lens array, wherein the electromagnetic waves comprise uplink signals;
adjusting the angle of the tested equipment within the range of the plane wave quiet zone;
and switching the uplink signal and the downlink signal of the feed source system and the test instrument through a switch box, and measuring and analyzing the uplink signal and the downlink signal.
Further, a first metamaterial lens array and a feed system for generating a first incoming wave direction plane wave and a second metamaterial lens array and a feed system for generating a second incoming wave direction plane wave are combined to generate a third incoming wave direction plane wave.
Furthermore, a plurality of metamaterial lens arrays and feed source systems which are arranged statically work in turn to generate a plurality of plane waves in the incoming wave direction, or at least 2 movable metamaterial lens arrays and feed source systems change positions to simultaneously generate two plane waves in the incoming wave direction.
Furthermore, each metamaterial lens array corresponds to a feed source system and is used for generating a plane wave in an incoming wave direction.
Further, the range of the plane dead zone is increased or decreased in at least one of the following ways:
changing the relative position between the feed source system and the metamaterial lens array;
changing the layer number of the metamaterial lens array;
and changing the distance between the metamaterial lens arrays of each layer.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
the system and the method can generate a plurality of plane waves meeting the test requirement at a short distance, improve the dynamic range of the system and reduce the cost of the test system.
The system and the method are applied to the consistency test of wireless communication wireless resource management, the tests of more than two arrival angle angles, such as the included angles of 0 degree, 30 degrees, 60 degrees, 90 degrees, 120 degrees and 150 degrees, are realized, and the problem of two arrival angles in the consistency test of the wireless resource management of the 5G millimeter wave terminal is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of a system for testing the consistency of radio resource management of a millimeter wave terminal in the prior art;
FIG. 2 is a schematic diagram of a transmission type arrangement of a multi-angle-of-arrival millimeter wave terminal radio resource management conformance testing system 4 metamaterial according to the present invention;
FIG. 3 is a schematic diagram of a transmission type arrangement of a metamaterial for a multi-angle-of-arrival millimeter wave terminal radio resource management conformance testing system 6 according to the present invention;
FIG. 4 is a schematic diagram of a reflective arrangement of a multi-angle-of-arrival millimeter wave terminal radio resource management conformance testing system 4 metamaterial according to the present invention;
fig. 5 is a schematic diagram illustrating a reflective arrangement of a metamaterial in the multi-angle-of-arrival millimeter wave terminal radio resource management conformance testing system 6 according to the present invention;
FIG. 6 is a schematic diagram of a mobile transmission-type layout of a multi-angle-of-arrival millimeter wave terminal radio resource management conformance testing system according to the present invention;
FIG. 7 is a schematic diagram illustrating a mobile reflective arrangement of a multi-angle-of-arrival millimeter wave terminal radio resource management conformance testing system according to the present invention;
FIG. 8 is a schematic diagram of a material composition of a metamaterial lens array according to the present invention;
FIG. 9 is a schematic diagram of the layered structure of the metamaterial lens array 1 of the present invention;
FIG. 10 is a schematic diagram of the layered structure of the metamaterial lens array 2 of the present invention;
fig. 11 is a flowchart illustrating steps of a method for testing consistency of management of radio resources of a multi-angle-of-arrival millimeter wave terminal according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The application provides a multi-arrival-angle millimeter wave terminal wireless resource management consistency test system, which is different from the existing compact range-based single-arrival-angle test system, can realize the test of Radio Resource Management (RRM) under the single arrival angle at a closer distance and a lower cost, can improve the dynamic range of the test system, can realize the tests of two or more arrival angles, such as the tests of 0 degree, 30 degrees, 60 degrees, 90 degrees, 120 degrees and 150 degrees, and solves the problem of two arrival angles in the consistency test of the wireless resource management of a 5G millimeter wave terminal.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
As shown in fig. 2-7, the present invention provides a system for testing consistency of millimeter wave terminal radio resource management at multiple angles of arrival, including: the device comprises a feed source system 22, a metamaterial lens array 21, a carrying rotary table 24, a test instrument 25 and a change-over switch box 26.
The electromagnetic wave radiated by the feed source system 22 is reflected or transmitted by the metamaterial lens array 21 to form a plane wave, including a downlink signal.
The feed source system 22 receives electromagnetic waves which are reflected by the tested device and then reflected or transmitted by the metamaterial lens array 21, wherein the electromagnetic waves comprise uplink signals.
The carrying rotary table 24 is positioned in the range of the plane wave quiet zone and used for carrying the tested equipment and adjusting the angle of the tested equipment; the tested Equipment comprises a mobile phone, a computer, Customer Premise Equipment (CPE Customer Premise Equipment), a vehicle-mounted terminal and the like, and is used for adjusting the angle of the tested Equipment to the tested direction.
And the test instrument 25 is used for measuring and analyzing the uplink signal and the downlink signal. The test instruments 25 include, but are not limited to, a wireless signal comprehensive tester, a signal generator, a spectrum analyzer, a vector network analyzer, and a power meter for performing measurement analysis on wireless signals, and the instruments are several.
The switch box 26 is used for switching the upstream signal and the downstream signal of the feed source system 22 and the test instrument 25, and includes, but is not limited to, a power amplifier, a low noise amplifier, a pass-through, and the like.
In some embodiments of the present invention, the metamaterial lens array 21 is plural, and is respectively used for generating the plane wave with a set incoming wave direction.
In some embodiments of the present invention, the polarization of the feed system 22 includes single, double, or circular polarization.
Further, in the embodiments of fig. 2 to 7, the system for testing the consistency of the management of the radio resource of the millimeter wave terminal with multiple arrival angles further includes:
a darkroom 23 for shielding external interference signals and providing a clean space of electromagnetic environment;
and the control system 27 is used for controlling the loading rotary table 24 to drive the tested equipment, controlling the test instrument 25 to acquire wireless signals, and analyzing and judging the position information of the loading rotary table 24 and the wireless signals of the test instrument 25.
In some embodiments of the invention, the angles of the plane waves include several angles, such as: 0 °, 30 °, 90 ° and 150 °.
In some embodiments of the present invention, when the incoming wave direction of the plane wave is two different angles, the vectors are superimposed to form an incoming wave direction of one angle. For example, when the incoming wave directions of the plane waves are 30 ° and 90 °, the vectors are superposed to form 60 ° incoming wave directions; when the incoming wave directions of the plane waves are 90 degrees and 150 degrees, the vectors are superposed to form the incoming wave direction of 120 degrees.
Regarding the transmissive plane wave generation, preferably, in fig. 2-3 and 6, the system for testing consistency of radio resource management of millimeter wave terminals with multiple angles of arrival includes: the metamaterial lens array 21 is used for receiving signals of the feed source system 22, converting electromagnetic waves from the feed source system into plane waves through transmission, and radiating the plane waves to a tested device on the carrying rotary table; the metamaterial lens is also used for receiving wireless signals reflected by the tested device and transmitting and outputting test signals to the feed source system 22. And the feed source system 22 is used for receiving the wireless signal transmitted by the metamaterial lens array 21 and outputting the wireless signal to the test instrument 25.
Regarding the reflective plane wave generation, preferably, in fig. 4-5 and 7, the system for testing consistency of radio resource management of millimeter wave terminal with multiple arrival angles includes: the metamaterial lens array 21 is used for receiving signals of the feed source system 22, converting electromagnetic waves from the feed source system into plane waves through reflection, and radiating the plane waves to a tested device on the carrying rotary table; the metamaterial lens is also used for receiving wireless signals reflected by the tested device and reflecting and outputting test signals to the feed source system 22. And the feed source system 22 is used for receiving the wireless signal reflected by the metamaterial lens array 21 and outputting the wireless signal to the test instrument 25.
Preferably, the system comprises a plurality of feed source systems 22 for receiving wireless signals transmitted by the metamaterial lens array or outputting the wireless signals to the test meter. For example, as shown in fig. 2, in the present embodiment, a plurality of metamaterial lens arrays 21 are used for receiving wireless signals emitted by a plurality of devices under test and transmitting and outputting test signals to the feed system, or receiving signals of a plurality of feed systems and transmitting to the devices under test on the carrying turntable.
Fig. 2 and 4 are schematic diagrams of the arrangement of metamaterials of a multi-angle-of-arrival millimeter wave terminal wireless resource management consistency test system 4 according to the invention. Fig. 2 shows that the feed source system transmits through the metamaterial lens array to form a plane wave at a certain distance, and fig. 4 shows that the feed source system reflects through the metamaterial lens array to form a plane wave at a certain distance. The system comprises four fixed metamaterial lens arrays 21, four feed source systems 22, a darkroom 23, a carrying rotary table 24, a test instrument 25, a change-over switch box 26 and a control system 27, wherein the carrying rotary table and the test instrument are connected with the control system, and the test instrument is connected with the feed source systems through the change-over switch box. The angles of the four metamaterial lens arrays are 0 degree, 30 degree, 90 degree and 150 degree as shown in fig. 2, incoming wave directions of the four angles of 0 degree, 30 degree, 90 degree and 150 degree can be simulated, meanwhile, the 30 degree and 90 degree can be vector superposed to form an incoming wave direction of 60 degree, and the 90 degree and 150 degree can be vector superposed to form an incoming wave direction of 120 degree, so that the test requirements of 0 degree, 30 degree, 60 degree, 90 degree, 120 degree and 150 degree are met.
The requirements for realizing the included angles of the two arrival angles of 0 degrees, 30 degrees, 60 degrees, 90 degrees, 120 degrees and 150 degrees also include the layout schematic diagrams of the test systems shown in fig. 3 and 5. Fig. 3 and 5 are schematic layout diagrams of a multi-angle-of-arrival millimeter wave terminal radio resource management conformance testing system 6 metamaterial according to the invention. Wherein, fig. 3 shows that the feed source system transmits through the metamaterial lens array to form a plane wave at a certain distance, and fig. 5 shows that the feed source system reflects through the metamaterial lens array to form a plane wave at a certain distance. The lens array comprises six fixed metamaterial lens arrays 31, six feed source systems 32, a darkroom 33, a carrying rotary table 34, a test instrument 35, a change-over switch box 36 and a control system 37, wherein the carrying rotary table and the test instrument are connected with the control system, and the test instrument is connected with the feed source systems through the change-over switch box. The angles of the six metamaterial lens arrays are 0 °, 30 °, 60 °, 90 °, 120 ° and 150 ° as shown in fig. 3, and the test requirements of two angles of arrival in 3GPP can be satisfied.
Further, in the darkroom 23, when the metamaterial lens array 21 and the feed system 22 are two or more, the metamaterial lens array 21 and the feed system 22 can move, the metamaterial lens array 21 and the feed system 22 are respectively adjusted to different angles, for example, 0 °, 30 °, 60 °, 90 °, 120 ° or 150 °, the feed system 22 sends out electromagnetic waves to the metamaterial lens array 21, the electromagnetic waves are converted into plane waves through the metamaterial lens array 21, the loading turntable 24 controls the position of the device under test corresponding to the plane waves, the plane waves are emitted to the device under test on the loading turntable 24, the device under test receives the plane waves, the reflected waves are reflected to the metamaterial lens array 21, the reflected waves form plane waves after passing through the metamaterial lens array 21, the plane waves are fed to the feed system 22, and the reflected waves are transmitted to the test instrument 25 through the switch box 26, wherein the reflected wave is transmitted to the test instrument 25 via the change-over switch box 26 to be controlled by the control system 27. And the upstream signal and the downstream signal of the feed source system 22 and the test instrument 25 are switched through the switch box 26, and the upstream signal and the downstream signal are measured and analyzed.
Fig. 6 is a schematic diagram illustrating a mobile transmission-type layout of a multiple-angle-of-arrival millimeter wave terminal radio resource management consistency test system of the present invention, and fig. 7 is a schematic diagram illustrating a mobile reflection-type layout of a multiple-angle-of-arrival millimeter wave terminal radio resource management consistency test system of the present invention. The system comprises two movable metamaterial lens arrays 61, two feed source systems 62, a darkroom 63, a carrying rotary table 64, a test instrument 65, a change-over switch box 66 and a control system 67, wherein the carrying rotary table and the test instrument are connected with the control system, and the test instrument is connected with the feed source systems through the change-over switch box. The test requirements of two angles of arrival in 3GPP can be satisfied by physically moving the angles of two metamaterial lens arrays to form 0 °, 30 °, 60 °, 90 °, 120 ° and 150 ° as shown in fig. 6.
As shown in fig. 8-10, in some embodiments of the present invention, the metamaterial lens array 21 is composed of 1 or more layers of dielectric substrates arranged in parallel and a metal array structure thereon.
In some embodiments of the present invention, the generation point of the plane wave is between 50cm and 150cm from the metamaterial lens array 21.
The metamaterial lens array and the feed source system are matched to generate plane waves within a range of 50cm to 150cm away from the metamaterial lens array, compared with the existing test system, the forming distance of the plane waves is shortened, and a formula is calculated according to free space loss:
Loss＝32.4478+20*log10(f)+20*log10(D) (1)
where Loss refers to space Loss in dB, f is frequency in MHz, D is transmit-receive distance in Km. The receiving and transmitting distance D is reduced, and the space Loss is correspondingly reduced, so that the dynamic range of the system is improved.
As shown in fig. 8, the metamaterial lens array and the feed system are key for determining the quality of the plane wave in the dead zone, and the metamaterial lens generally comprises a dielectric substrate and a metal array structure, the dielectric substrate generally adopts materials including but not limited to PCB materials, and the metal array structure generally adopts materials including but not limited to copper, molybdenum, gold and the like.
The metal array structure form is the core for realizing amplitude and phase adjustment, but the phase adjustment capability of a single-layer metamaterial lens is generally less than 100 degrees, the number of layers of the metamaterial array includes but is not limited to a metamaterial lens array 1 layer structure shown in fig. 9 and a metamaterial lens array 2 layer structure shown in fig. 10, and a multilayer metamaterial lens is adopted to realize maximum 360-degree phase adjustment so as to achieve the effect of plane waves in a certain dead zone range.
On the other hand, as shown in fig. 11, the present invention provides a method for testing consistency of management of radio resources of a millimeter wave terminal with multiple arrival angles, including:
step S1: electromagnetic waves radiated by a feed source system 22 are reflected or transmitted by the metamaterial lens array 21 to form plane waves including downlink signals;
step S2: the feed source system 22 receives electromagnetic waves which are reflected by the tested equipment and then reflected or transmitted by the metamaterial lens array 21, wherein the electromagnetic waves comprise uplink signals;
step S3: adjusting the angle of the tested equipment within the range of the plane wave quiet zone;
step S4: the uplink signal and the downlink signal of the feed source system 22 and the test instrument 25 are switched through the switch box 26, and the uplink signal and the downlink signal are measured and analyzed.
In some embodiments of the present invention, the first metamaterial lens array 21 for generating the first incoming direction plane wave and the second metamaterial lens array 21 for generating the second incoming direction plane wave are combined to generate the third incoming direction plane wave.
In some embodiments of the present invention, a plurality of metamaterial lens arrays 21 and feed source systems 22 arranged statically work in turn to generate plane waves in a plurality of incoming wave directions as shown in fig. 2-5, or at least 2 metamaterial lens arrays 21 and feed source systems 22 which can move to change positions as shown in fig. 6-7 to generate plane waves in two incoming wave directions simultaneously.
In some embodiments of the present invention, each metamaterial lens array 21 corresponds to one feed system 22 for generating a plane wave in an incoming wave direction.
In some embodiments of the present invention, the extent of the plane dead zone is increased or decreased in at least one of the following ways:
changing the relative position between the feed system 22 and the metamaterial lens array 21;
as shown in fig. 9 and 10, the number of layers of the metamaterial lens array 21 is changed, for example, the number of layers of the metamaterial lens array 21 is changed to two; the metamaterial lens array 1 layer structure shown in fig. 9 and the metamaterial lens array 2 layer structure shown in fig. 10, and,
the distance between the layers of metamaterial lens arrays 21 is varied.
The invention achieves the following purposes:
the multi-arrival-angle millimeter wave terminal wireless resource management consistency test system can generate a plurality of plane waves meeting the test requirements at a short distance, can improve the dynamic range of the system and reduce the cost of the test system.
A multi-arrival-angle millimeter wave terminal wireless resource management consistency test system is applied to wireless communication wireless resource management consistency tests, tests that the included angles of two arrival angles are 0 degree, 30 degrees, 60 degrees, 90 degrees, 120 degrees and 150 degrees are achieved, and the problem of two arrival angles in the consistency test of 5G millimeter wave terminal wireless resource management is solved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A multi-angle-of-arrival millimeter wave terminal wireless resource management consistency test system is characterized by comprising: the system comprises a feed source system, a metamaterial lens array, a carrying rotary table, a test instrument and a change-over switch box;
electromagnetic waves radiated by the feed source system are reflected or transmitted by the metamaterial lens array to form plane waves including downlink signals; the feed source system receives electromagnetic waves which are reflected by the tested equipment and then reflected or transmitted by the metamaterial lens array, wherein the electromagnetic waves comprise uplink signals; the carrying rotary table is positioned in the range of the plane wave quiet zone and used for carrying the tested equipment and adjusting the angle of the tested equipment;
the test instrument is used for measuring and analyzing the uplink signal and the downlink signal;
and the switch box is used for switching the uplink signals and the downlink signals of the feed source system and the test instrument.
2. The system for testing the consistency of the management of the wireless resources of the multi-angle-of-arrival millimeter wave terminal as recited in claim 1, wherein the plurality of metamaterial lens arrays are respectively configured to generate the plane waves with a predetermined incoming wave direction.
3. The system of claim 1, wherein the polarization mode of the feed system comprises single-line polarization, double-line polarization, or circular polarization.
4. The system of claim 1, wherein a point of generation of the plane wave is between 50cm and 150cm from the metamaterial lens array.
5. The system of claim 1, wherein the metamaterial lens array is composed of 1 or more layers of dielectric substrates arranged in parallel and a metal array structure located thereon.
6. A method for testing the consistency of the wireless resource management of a multi-angle-of-arrival millimeter wave terminal is characterized by comprising the following steps:
electromagnetic waves radiated by a feed source system are reflected or transmitted by the metamaterial lens array to form plane waves including downlink signals;
the feed source system receives electromagnetic waves which are reflected by the tested equipment and then reflected or transmitted by the metamaterial lens array, wherein the electromagnetic waves comprise uplink signals;
adjusting the angle of the tested equipment within the range of the plane wave quiet zone;
and switching the uplink signal and the downlink signal of the feed source system and the test instrument through a switch box, and measuring and analyzing the uplink signal and the downlink signal.
7. The method as claimed in claim 6, wherein a first metamaterial lens array for generating a first incoming direction plane wave and a second metamaterial lens array for generating a second incoming direction plane wave are combined to generate a third incoming direction plane wave.
8. The method of claim 6, wherein the test method for consistency of radio resource management of the multi-angle-of-arrival millimeter wave terminal,
the planar waves in a plurality of incoming wave directions are generated by alternately working through a plurality of metamaterial lens arrays and feed source systems which are arranged statically, or the positions of at least 2 movable metamaterial lens arrays and feed source systems are changed, and the planar waves in two incoming wave directions are generated simultaneously.
9. The method of claim 6, wherein each metamaterial lens array corresponds to a feed system for generating a plane wave in an incoming wave direction.
10. The method of claim 6, wherein the range of the plane dead zone is increased or decreased by at least one of the following methods:
changing the relative position between the feed source system and the metamaterial lens array;
changing the layer number of the metamaterial lens array;
and changing the distance between the metamaterial lens arrays of each layer.
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