CN113162708A - Large-scale terminal simulation system and test method - Google Patents
Large-scale terminal simulation system and test method Download PDFInfo
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Abstract
The invention relates to a large-scale terminal simulation system and a test method, wherein the system comprises: the system comprises an amplitude-phase matrix, a terminal simulator, a clock source and a trigger source; a first port of the amplitude-phase matrix is connected with an input/output port of the base station, and a second port of the amplitude-phase matrix is connected with a radio frequency port of the terminal simulator; the amplitude-phase matrix and the terminal simulator jointly form a channel, at least one of a phase-shifting module, an attenuation module or an attenuation phase-shifting module is arranged on the amplitude-phase matrix, and the phase-shifting module, the attenuation module and the attenuation phase-shifting module are all connected with a radio frequency board card of the terminal simulator; multiplexing a clock source and a trigger source by the amplitude-phase matrix and the terminal simulator so as to enable the amplitude-phase matrix and the channel simulator to work synchronously; the invention forms effective connection between the base station and the terminal simulator through the amplitude-phase matrix, completes the performance test of the complex LTE + and 5G systems, and can simultaneously control the terminal simulator and the amplitude-phase matrix to enable the terminal simulator and the amplitude-phase matrix to work synchronously.
Description
Technical Field
The invention relates to the technical field of mobile communication equipment testing, in particular to a large-scale terminal simulation system and a testing method.
Background
Compared with The traditional third Generation Mobile communication (The 3rd Generation is abbreviated as "3G") and Long Term Evolution (Long Term Evolution, abbreviated as "LTE") systems, The LTE + and fifth Generation Mobile communication (The 5rd Generation Mobile Networks is abbreviated as "5G") systems developed at present have many problems to be overcome in terms of testing, wherein The problem to be solved urgently is that a single technology cannot complete The evaluation of The LTE + and 5G systems, and a large number of terminal devices are required to be accessed simultaneously, so that The operation of The LTE + and 5G system evaluation is more difficult, and The response of a network to a combination of high capacity and high path is difficult to measure;
therefore, when faced with the complicated LTE + and 5G systems, those skilled in the art are urgently required to develop a new testing technology and equipment to complete performance evaluation of the complicated LTE + and 5G systems.
Disclosure of Invention
In view of the foregoing problems in the prior art, an object of the present invention is to provide a large-scale terminal simulation system, which uses a terminal simulator to form an effective connection between a base station and the terminal simulator through a magnitude-phase matrix, thereby completing a performance test on complex LTE + and 5G systems.
In order to solve the above problems, the present invention provides a large-scale terminal simulation system, comprising: the system comprises an amplitude-phase matrix, a terminal simulator, a clock source and a trigger source;
the amplitude-phase matrix is provided with a first port and a second port, the first port is connected with an input/output port of a base station, the second port is connected with a radio frequency port of the terminal simulator, the first port corresponds to the input/output port of the base station one by one, and the second port corresponds to the radio frequency port of the terminal simulator one by one;
the amplitude-phase matrix and the terminal simulator jointly form a channel, at least one of a phase-shifting module, an attenuation module or an attenuation phase-shifting module is arranged on the amplitude-phase matrix, and the phase-shifting module, the attenuation module and the attenuation phase-shifting module are all connected with a radio frequency board card of the terminal simulator;
and the amplitude-phase matrix and the terminal simulator multiplex the clock source and the trigger source so as to synchronously work the amplitude-phase matrix and the channel simulator.
Furthermore, the amplitude and phase matrix is provided with an MxN radio frequency matrix, the MxN radio frequency matrix is constructed through a radio frequency module, and M and N are positive integers.
Further, the M × N radio frequency matrix includes M input ports and N output ports, where M and N are positive integers;
each input port is provided with a 1/N radio frequency power divider, and the radio frequency power divider is used for dividing one path of original signals into N paths of signals;
each output port is provided with a 1/M radio frequency combiner, and the radio frequency combiner is used for combining M paths of original signals into one path of received signal.
Further, the phase shift module, the attenuation module or the attenuation phase shift module is arranged on a connecting channel of the 1/N radio frequency power divider and the 1/M radio frequency combiner, and M and N are positive integers.
Further, the phase shift module, the attenuation module or the attenuation phase shift module are all bidirectional transmission modules.
Further, the M × N radio frequency matrix is a bidirectional transmission matrix, and M and N are positive integers.
Further, M and N in the M × N radio frequency matrix are both 2nM, N and n are positive integers.
Further, the terminal simulator also comprises a digital processing module;
the digital processing module is connected with the radio frequency board card and is used for processing the received signal input through the radio frequency port.
Further, the clock source is arranged in the amplitude-phase matrix or the terminal simulator, and the clock source is used for synchronizing the time of the terminal simulator with the time of the amplitude-phase matrix;
the trigger source is arranged in the amplitude-phase matrix or the terminal simulator, and the trigger is used for triggering
The source is used to synchronize the start of the terminal simulator with the start of the amplitude and phase matrix.
The invention also comprises a test method for large-scale terminal simulation, wherein the test method adopts any one of the large-scale terminal simulation systems, and the test method comprises the following steps:
receiving control signals of a clock source and a trigger source;
controlling the amplitude-phase matrix and the terminal simulator to start synchronous work according to the control signals of the clock source and the trigger source;
converting an original signal sent by the base station into a received signal through the amplitude-phase matrix, and sending the received signal into the terminal simulator, wherein the received signal is correspondingly processed through the digital processing module in the terminal simulator; or converting the original signal sent by the terminal simulator into a received signal through the amplitude-phase matrix, and sending the received signal to the base station.
Due to the technical scheme, the invention has the following beneficial effects:
1) according to the large-scale terminal simulation system and the test method, the terminal simulator is adopted, so that the access of a plurality of terminals can be met, a more real scene can be simulated, the performance test of complex LTE + and 5G systems is completed, and the test difficulty is simplified;
2) the invention relates to a large-scale terminal simulation system and a test method, which adopt a terminal simulator to form effective connection between a base station and the terminal simulator through an amplitude-phase matrix.
3) According to the large-scale terminal simulation system and the test method, the time and the initial action of the terminal simulator are synchronized with the time and the initial action between the amplitude-phase matrix through the time source and the trigger source.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a large-scale terminal simulation system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another large-scale terminal simulation system according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another large-scale terminal simulation system according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a magnitude-phase matrix according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the structure of the amplitude and phase moments provided by the second embodiment of the present invention;
FIG. 6 is a schematic diagram of the structure of amplitude and phase moments provided by the third embodiment of the present invention;
fig. 7 is a flowchart of a test method for large-scale terminal simulation according to an embodiment of the present invention.
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 any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Example one
In an embodiment, a large-scale terminal simulation system is provided, as shown in fig. 1, including: the system comprises an amplitude-phase matrix, a terminal simulator, a clock source and a trigger source;
the amplitude-phase matrix is provided with a first port and a second port, the first port is connected with an input/output port of a base station, the second port is connected with a radio frequency port of the terminal simulator, the first port corresponds to the input/output port of the base station one by one, and the second port corresponds to the radio frequency port of the terminal simulator one by one;
the amplitude-phase matrix and the terminal simulator jointly form a channel, at least one of a phase-shifting module, an attenuation module or an attenuation phase-shifting module is arranged on the amplitude-phase matrix, and the phase-shifting module, the attenuation module and the attenuation phase-shifting module are all connected with a radio frequency board card of the terminal simulator;
and the amplitude-phase matrix and the terminal simulator multiplex the clock source and the trigger source so as to synchronously work the amplitude-phase matrix and the channel simulator.
Further, the amplitude and phase matrix is used for receiving an original signal, converting the original signal into a received signal and transmitting the received signal.
In particular, the terminal simulator is capable of sending and receiving signals.
Further, the original signal is sent by the base station or sent by the terminal simulator, and the corresponding receiving signal is converted from the original signal sent by the base station or sent by the terminal simulator.
Specifically, the amplitude-phase matrix is used for simulating a darkroom and a probe part in a large-scale multiple-input multiple-output air interface test of the base station, and beam angle simulation from the base station to the terminal simulator is completed.
Specifically, the amplitude-phase matrix is provided with an M × N radio frequency matrix, the M × N radio frequency matrix is constructed by radio frequency modules, and M and N are positive integers.
Specifically, the M × N radio frequency matrix includes M input ports and N output ports, where M and N are positive integers, that is, the first port is an input port, and the second port is an output port;
each input port is provided with a 1/N radio frequency power divider, and the radio frequency power divider is used for dividing one path of original signals into N paths of signals;
each output port is provided with a 1/M radio frequency combiner, and the radio frequency combiner is used for combining M paths of original signals into one path of received signal.
Specifically, the phase shift module is arranged on a connecting channel of the 1/N radio frequency power divider and the 1/M radio frequency combiner, and M and N are positive integers.
Further, the phase shift module is a bidirectional transmission module. The phase shift module includes: y radio frequency phase shifters, Y is a positive integer, and the phase shift module can adjust the phase change of signals.
Specifically, the M × N radio frequency matrix is a bidirectional transmission matrix, and M and N are positive integers.
Further, M and N in the M × N radio frequency matrix are both 2nM, N and N are positive integers, e.g., M is 2, 4, 8, 16, 32, 64, 128 or 256 and N is also 2, 4, 8, 16, 32, 64, 128 or 256.
Specifically, the terminal simulator further comprises a digital processing module;
the digital processing module is connected with the radio frequency board card and is used for processing the received signal input through the radio frequency port.
Specifically, the transmission of the information flow of the system occurs between the base station and the terminal simulator, and the direction of the information flow of the system includes a downlink information flow direction and an uplink information flow direction;
the downlink information flow direction: the base station sends an original signal, converts the original signal sent by the base station into a received signal through the amplitude-phase matrix, and sends the received signal to the terminal simulator;
the upstream direction: the terminal simulator sends out original signals, the original signals sent out by the terminal simulator are converted into received signals through the amplitude-phase matrix, and the received signals are sent to the base station.
As shown in fig. 4, in the test environment of this embodiment, the base station is a 5G base station, the amplitude and phase matrix is a64 × 16 radio frequency matrix, that is, M is 64, and N is 16, where the 5G base station is a 5G base station to be tested, and the terminal simulator is used to perform a test in cooperation with the 5G base station, and the 5G base station, the 64 × 16 radio frequency matrix and the terminal simulator are connected by radio frequency wires, where the 64 × 16 radio frequency matrix is a matrix channel formed by a plurality of radio frequency channels formed by power distribution networks inside, each radio frequency channel is provided with a phase shift module, and the phase shift modules can be independently adjusted.
Specifically, the input ports of the 64 × 16 radio frequency matrix are A1-A64, and the output ports are B1-B16;
downstream information flow direction: the 5G base station sends out 64 original signals, each input port on one side of the input port is provided with 1/16 radio frequency power dividers, one original signal is divided into 16 paths, 64 original signals of 64 input ports can be divided into 1024 paths in total, similarly, each output port on one side of the output port is provided with a 1/64 radio frequency combiner, 64 paths of signals can be combined into 1 path of received signals, so that the 1024 paths of signals are finally combined into 16 paths of received signals to be output, and then the combined 16 paths of received signals are transmitted to the digital processing module through the radio frequency port of the terminal simulator to form a channel, wherein 1024 paths of signals which are independent to each other are formed between the original signals and the received signals, and the digital processing module is used for processing the 16 paths of received signals and mainly comprises: time delay, fading, noise addition, etc.;
upstream direction: 16 paths of original signals sent by the radio frequency ports of the terminal simulator are converted into 64 paths of received signals through B1-B16 ports of the 64 x 16 radio frequency matrix, and the 64 paths of received signals are transmitted to the 5G base station through A1-A64 ports of the 64 x 16 radio frequency matrix.
Specifically, the amplitude-phase matrix and the terminal simulator are respectively provided with a main control system, and the main control system of the amplitude-phase matrix can control the phase shift value and the attenuation value of the phase shift attenuation modules or the phase shift module and the attenuation module, so that the phase and the amplitude of the radio frequency information flow passing through the radio frequency channel can be changed at will, the beam angle and the gain output by each N port can be flexibly controlled, and the adjustment of the large-scale parameters of the channel is completed; the main control system of the terminal simulator can control time delay, noise, fast attenuation, multipath and the like of signals to complete adjustment of small-scale parameters of a channel, but the two sets of control systems are independent to each other, so that the time and initial actions of the amplitude-phase matrix and the terminal simulator are asynchronous, and errors are generated in testing of the terminal simulator and a base station.
Specifically, the clock source is arranged in a magnitude-phase matrix or a terminal simulator, and the clock source is used for synchronizing the time of the terminal simulator with the time of the magnitude-phase matrix, wherein the clock source controls the beam angle and the gain setting of the magnitude-phase matrix, so that the time of the terminal simulator is synchronized with the time of the magnitude-phase matrix;
the trigger source is arranged in a magnitude-phase matrix or a terminal simulator and is used for enabling the terminal to be connected with the terminal
The initial action of the terminal simulator is synchronous with the initial action of the amplitude-phase matrix, and the triggering source plays a channel model file of the terminal simulator or adjusts power, noise and the like, so that the initial action of the terminal simulator is synchronous with the initial action of the amplitude-phase matrix; and further, the synchronous change of large-scale channel parameters and small-scale channel parameters is guaranteed, so that the requirements of a 5G system on low time delay and low error are met.
Preferably, the clock source and the trigger source are both arranged in the terminal simulator, and the clock source and the trigger source of the amplitude-phase matrix both refer to the clock source and the trigger source of the channel simulator. The Clock output interface (Clock-Out interface) of the terminal simulator is connected with the Clock input interface (Clock-In interface) of the amplitude-phase matrix through a Clock wire (Clock wire), and the Trigger output interface (Trigger-Out interface) of the terminal simulator is connected with the Trigger input interface (Trigger-In interface) of the amplitude-phase matrix through a Trigger wire (Trigger wire)
In some possible embodiments, as shown in fig. 2, the clock source and the trigger source are both disposed in the amplitude-phase matrix, and the clock source and the trigger source of the channel simulator are both referred to the amplitude-phase matrix. A Clock output interface (Clock-Out interface) of the amplitude-phase matrix is connected with a Clock input interface (Clock-In interface) of the terminal simulator through a Clock wire (Clock wire), and a Trigger output interface (Trigger-Out interface) of the amplitude-phase matrix is connected with a Trigger input interface (Trigger-In interface) of the terminal simulator through a Trigger wire (Trigger wire).
In some possible embodiments, as shown in fig. 3, the clock source and the trigger source are respectively disposed in the amplitude-phase matrix and the terminal simulator, and the amplitude-phase matrix clock source and the trigger source are both referred to by the clock source and the trigger source of the channel simulator. A Clock output interface (Clock-Out interface) of the amplitude-phase matrix is connected with a Clock input interface (Clock-In interface) of the terminal simulator through a Clock wire (Clock wire), and a Trigger output interface (Trigger-Out interface) of the amplitude-phase matrix is connected with a Trigger input interface (Trigger-In interface) of the terminal simulator through a Trigger wire (Trigger wire).
In some embodiments, since the terminal simulator may simulate a plurality of same or different terminal devices, the clock source and the trigger source may also be synchronized respectively according to the terminal devices simulated in the simulator.
In some embodiments, an attenuation module and/or an attenuation phase-shifting module is further disposed between the phase-shifting module and the radio frequency board card.
The embodiment also provides a test method for large-scale terminal simulation, where the test method employs any one of the large-scale terminal simulation systems described above, and as shown in fig. 7, the test method includes the following steps:
s101, receiving control signals of a clock source and a trigger source;
s102, controlling the amplitude-phase matrix and the terminal simulator to start synchronous work according to the control signals of the clock source and the trigger source;
s103, receiving an original signal sent by a base station, converting the original signal sent by the base station into a received signal through the amplitude-phase matrix, and sending the received signal into the terminal simulator, wherein the received signal is correspondingly processed in the terminal simulator through the digital processing module; or converting the original signal sent by the terminal simulator into a received signal through the amplitude-phase matrix, and sending the received signal to the base station.
Specifically, the controlling the amplitude-phase matrix and the channel simulator to start synchronous operation according to the control signals of the clock source and the trigger source includes:
respectively initializing the amplitude-phase matrix and the terminal simulator;
if the clock source continuously outputs the clock signal, judging whether the trigger source outputs the trigger signal;
and if the trigger source outputs a trigger signal, controlling the amplitude-phase matrix and the terminal simulator to receive the channel file and start synchronous work.
The embodiment provides a large-scale terminal simulation system and a test method, a terminal simulator is adopted, the access of a plurality of terminals can be met, a more real scene can be simulated, the performance test of a complex LTE + and 5G system can be completed, the test difficulty is simplified, meanwhile, an effective connection is formed between a base station and the terminal simulator through a magnitude-phase matrix, and the terminal simulator or the base station can be conveniently and accurately tested.
Example two
A second embodiment provides a large-scale terminal simulation system and a test method, as shown in fig. 5, the difference from the first embodiment is that an attenuation module is arranged on the channel, the attenuation module is arranged on a connection channel of the 1/N radio frequency power divider and the 1/M radio frequency combiner, and the attenuation shift block is a bidirectional transmission module.
Specifically, the attenuating phase-shifting module includes: x radio frequency attenuators, wherein X is a positive integer, and the attenuation module can adjust the attenuation change of the signal.
Specifically, the process of transmitting the original signal sent by the base station to the terminal simulator through the amplitude-phase matrix is consistent with the first embodiment, and is not described herein again.
Specifically, the process of transmitting the original signal sent by the terminal simulator to the base station through the amplitude-phase matrix is consistent with the first embodiment, and details are not repeated here.
In some embodiments, a phase shift module and/or an attenuation phase shift module is further disposed between the attenuation module and the radio frequency board card.
Specifically, the test method is the same as the first embodiment, and is not described herein again.
The difference between the second embodiment and the first embodiment is that the attenuation module is used to replace the phase shift module, and the performance of the terminal simulator and the performance of the base station are tested when the signal phase does not change in the extreme zooming scene, so that the zooming test is satisfied, and the technical effect same as that of the first embodiment can be realized.
EXAMPLE III
A third embodiment provides a large-scale terminal simulation system and a test method, as shown in fig. 6, the difference from the first embodiment is that an attenuation phase-shifting module is arranged on the channel, the attenuation phase-shifting module is arranged on a connection channel of the 1/N radio frequency power divider and the 1/M radio frequency combiner, and the attenuation phase-shifting module is a bidirectional transmission module.
Specifically, the attenuating phase-shifting module includes: the X radio frequency attenuators and the Y radio frequency phase shifters X, Y are positive integers, and the attenuation phase shifting module can adjust the attenuation change and the phase change of the signals simultaneously.
Specifically, the process of transmitting the original signal sent by the base station to the terminal simulator through the amplitude-phase matrix is the same as that described above, and details are not repeated here.
Specifically, the process of transmitting the original signal sent by the terminal simulator to the base station through the amplitude-phase matrix is the same as that described above, and details are not repeated here.
Specifically, the test method is the same as the first embodiment, and is not described herein again.
The third embodiment is different from the first embodiment in that the attenuation phase shift module is used to replace the phase shift module, so that on one hand, the performance of the terminal simulator and the performance of the base station can be tested in a limit zoom-out scene, which meets the zoom-out test, and meanwhile, the performance of the terminal simulator and the performance of the base station can be tested in the case of signal phase change, and the same technical effect as that of the first embodiment can also be achieved.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts in the embodiments may be joined together, and each embodiment focuses on the differences from the other embodiments. In particular, for the hardware + program class embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and relevant points may be referred to as part of the description of the method embodiment.
The embodiments of the present description are not limited to what must be consistent with communication standards, standard computer data processing and data storage rules, or what is described in one or more embodiments of the present description. Certain industry standards, or implementations modified slightly from those described using custom modes or examples, may also achieve the same, equivalent, or similar, or other, contemplated implementations of the above-described examples. The embodiments using the modified or transformed data acquisition, storage, judgment, processing and the like can still fall within the scope of the alternative embodiments of the embodiments in this specification. In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The foregoing description has disclosed fully preferred embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the appended claims. Accordingly, the scope of the appended claims is not to be limited to the specific embodiments described above.
Claims (10)
1. A large-scale terminal simulation system, comprising: the system comprises an amplitude-phase matrix, a terminal simulator, a clock source and a trigger source;
the amplitude-phase matrix is provided with a first port and a second port, the first port is connected with an input/output port of a base station, the second port is connected with a radio frequency port of the terminal simulator, the first port corresponds to the input/output port of the base station one by one, and the second port corresponds to the radio frequency port of the terminal simulator one by one;
the amplitude-phase matrix and the terminal simulator jointly form a channel, at least one of a phase-shifting module, an attenuation module or an attenuation phase-shifting module is arranged on the amplitude-phase matrix, and the phase-shifting module, the attenuation module and the attenuation phase-shifting module are all connected with a radio frequency board card of the terminal simulator;
and the amplitude-phase matrix and the terminal simulator multiplex the clock source and the trigger source so as to synchronously work the amplitude-phase matrix and the channel simulator.
2. The large-scale terminal simulation system according to claim 1, wherein the amplitude and phase matrix is provided with an M x N radio frequency matrix, the M x N radio frequency matrix is constructed by radio frequency modules, and M and N are positive integers.
3. The large-scale terminal simulation system according to claim 2, wherein the mxn rf matrix comprises M input ports and N output ports, M and N being positive integers;
each input port is provided with a 1/N radio frequency power divider, and the radio frequency power divider is used for dividing one path of original signals into N paths of signals;
each output port is provided with a 1/M radio frequency combiner, and the radio frequency combiner is used for combining M paths of original signals into one path of received signal.
4. The large-scale terminal simulation system according to claim 3, wherein the phase shift module, the attenuation module or the attenuation phase shift module is disposed on a connection channel of the 1/N RF power divider and the 1/M RF combiner, and M and N are positive integers.
5. The large-scale terminal simulation system according to claim 4, wherein the phase-shifting module, the attenuating module or the attenuating phase-shifting module is a bidirectional transmission module.
6. The system of claim 3, wherein the M x N RF matrix is a bi-directional transmissible matrix, and M and N are positive integers.
7. The system of claim 6, wherein M and N are both 2 in the M x N RF matrixnM, N and n are positive integers.
8. The large-scale terminal simulation system according to claim 1, wherein the terminal simulator further comprises a digital processing module;
the digital processing module is connected with the radio frequency board card and is used for processing the received signal input through the radio frequency port.
9. The large-scale terminal simulation system according to claim 1,
the clock source is arranged in the amplitude-phase matrix or the terminal simulator and is used for synchronizing the time of the terminal simulator with the time of the amplitude-phase matrix;
the trigger source is arranged in the amplitude-phase matrix or the terminal simulator and is used for enabling the initial action of the terminal simulator to be synchronous with the initial action of the amplitude-phase matrix.
10. A test method for large-scale terminal simulation, wherein the test method employs the large-scale terminal simulation system of any one of claims 1 to 9, and the test method comprises the following steps:
receiving control signals of a clock source and a trigger source;
controlling the amplitude-phase matrix and the terminal simulator to start synchronous work according to the control signals of the clock source and the trigger source;
converting an original signal sent by the base station into a received signal through the amplitude-phase matrix, and sending the received signal into the terminal simulator, wherein the received signal is correspondingly processed through the digital processing module in the terminal simulator; or converting the original signal sent by the terminal simulator into a received signal through the amplitude-phase matrix, and sending the received signal to the base station.
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