CN112512101A - Network signal generating device, network finding time testing method, upper computer and system - Google Patents
Network signal generating device, network finding time testing method, upper computer and system Download PDFInfo
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Abstract
The embodiment of the invention relates to a signal processing technology and discloses a network signal generating device, a network finding time testing method, an upper computer and a system. The network signal generating device of the invention comprises: the system comprises an interference generating component for generating an interference signal, a signal receiving module for receiving an effective network signal, and a coupler for mixing the interference signal and the effective network signal to obtain a modulated network signal; the output end of the interference generating assembly and the output end of the signal receiving module are respectively connected with the coupler; and the output end of the coupler is used for being connected with an antenna interface of the tested communication module and transmitting the obtained modulated network signal to the antenna interface of the tested communication module, so that the tested communication module can find a network according to the modulated network signal and determine the network finding time. According to the embodiment, the tested wireless communication module can quickly and accurately determine the network searching time, and the efficiency and the accuracy of determining the network searching time are improved.
Description
Technical Field
The embodiment of the invention relates to a signal processing technology, in particular to a network signal generating device, a network finding time testing method, an upper computer and a system.
Background
During the propagation, the wireless communication network signals are interfered by natural factors (weather conditions) and environmental factors (buildings and radio resources). In the using process of the wireless communication module, the SIGNAL-to-NOISE RATIO (SNR) index is usually used to measure the quality of the current network SIGNAL, and different network searching algorithms are used according to different network SIGNAL qualities. For example, in an environment with good signal quality, the wireless communication module can find a network and register the network more easily, and at the moment, the wireless communication module can use a fast network finding algorithm to shorten the network finding time; under the environment with poor signal quality, it is difficult for the wireless communication module to find a network and register the network, and at this time, the wireless communication module uses a slow network finding algorithm, so that the problem of signal interference can be overcome from the algorithm, but more time is spent.
In order to better evaluate whether the network finding algorithm of the wireless communication module is effective and reasonable, the network finding time of the wireless communication module is usually tested in different network interference environments.
The inventors found that at least the following problems exist in the related art: in the existing testing process of network searching time of a wireless communication module, a worker usually selects a testing place, namely, signal quality of an environment is determined firstly, then network searching time determined by the wireless communication module under different network environments is obtained in a centralized manner, and then whether the determined network searching time is normal or not is judged. However, the field test requires an environment to be built and a large number of test tools are carried, so that the network finding time can be acquired in a long time, the test efficiency of the network finding time is reduced, and the field test is inaccurate.
Disclosure of Invention
The embodiment of the invention aims to provide a network signal generating device, a network finding time testing method, an upper computer and a system, so that a tested wireless communication module can quickly and accurately determine the network finding time, and the efficiency and the accuracy of determining the network finding time are improved.
To solve the above technical problem, an embodiment of the present invention provides a network signal generating apparatus, including: the system comprises an interference generating component for generating an interference signal, a signal receiving module for receiving an effective network signal, and a coupler for mixing the interference signal and the effective network signal to obtain a modulated network signal; the output end of the interference generating assembly and the output end of the signal receiving module are respectively connected with the coupler; and the output end of the coupler is used for being connected with an antenna interface of the tested communication module and transmitting the obtained modulated network signal to the antenna interface of the tested communication module, so that the tested communication module can find a network according to the modulated network signal and determine the network finding time.
The embodiment of the invention also provides a method for testing the network searching time, which is applied to an upper computer and comprises the following steps: acquiring network searching time determined by a tested communication module based on different modulated network signals, wherein the modulated network signals are generated by the network signal generating device based on preset interference signals; and determining the test result of the network finding time of the tested communication module according to the network finding time and the network finding time threshold value corresponding to each modulated network signal.
The embodiment of the present invention further provides an upper computer, including: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the method for network finding time test.
The embodiment of the invention also provides a system for testing the network searching time, which comprises: the system comprises a tested communication module, the upper computer and the network signal generating device; the output end of the network signal generating device is connected with an antenna interface of the communication module to be tested, and the upper computer is connected with the communication module to be tested; the tested communication module searches for a network according to the received different modulated network signals and determines the network searching time of the different modulated network signals; and the upper computer determines the test result of the network finding time of the tested communication module according to the network finding time and the network finding time threshold value corresponding to each modulated network signal.
Compared with the prior art, the method and the device have the advantages that the coupler mixes the interference signal and the effective signal to obtain the modulated network signal, the output end of the coupler is connected with the tested communication module to provide a network environment for the tested communication module to find the network, and the interference generating assembly generates the preset interference signal, so that the modulated network signal output by the coupler is controllable, the interference signal in the network signal is stabilized, and the accuracy of the network finding time determined by the communication module is ensured; meanwhile, interference signals contained in the modulated network signals can be used for simulating the interference signals in the network environment, so that workers can determine the network searching time under different network environments without carrying the communication module to various field environments, the workload of workers is reduced, and the efficiency of determining the network searching time by the communication module is improved.
In addition, the interference generating component includes: the control module is in communication connection with the signal generation module; the control module is used for controlling the signal generating module to generate a preset interference signal; the output end of the signal generating module is connected with the antenna interface of the coupler. The output end of the signal generating module is connected with the antenna interface of the coupler, the connection mode is simple, and the control module adjusts the interference signal generated by the signal generating module, so that the control is convenient.
In addition, the control module includes: an adjusting submodule and an executing submodule; the adjusting submodule is used for adjusting the configuration information of the signal generating module; the execution submodule is used for sending the adjusted configuration information to the signal generation module and controlling the signal generation module to generate an interference signal according to the adjusted configuration information; the configuration information includes: the transmission power and/or communication system of the generated interference signal is required. The configuration information comprises the transmitting power and/or the communication system of the interference signal, and the different network environments have corresponding configuration information, so that the configuration information is adjusted by the adjusting submodule, different interference signals can be generated, and different network environments can be simulated.
In addition, the adjusting submodule is specifically configured to: acquiring information of a preset interference environment; determining configuration information according to the information of the preset interference environment and the corresponding relation between the information of the preset interference environment and the configuration information; and adjusting the original configuration information of the signal generation module according to the determined configuration information. The configuration information is determined based on the information of the preset interference environment, so that the interference signal generated according to the configuration information can simulate the interference signal in the preset interference environment, the generated interference signal has higher pertinence, and the accuracy of the network searching time determined by the communication module is improved.
In addition, the information of the preset interference environment includes: presetting level information of an interference environment; the level information of the preset interference environment is determined based on a signal-to-noise ratio corresponding to the preset interference environment, and the level information of the preset interference environment is inversely proportional to the signal-to-noise ratio corresponding to the preset interference environment. The signal-to-noise ratio can reflect the influence of noise more intuitively, and the grade information of the preset interference environment determined based on the signal-to-noise ratio is accurate
In addition, the interference generating component and the coupler are connected through a coaxial cable; the output end of the signal receiving module is connected with the coupler through a coaxial cable; the output end of the coupler is connected with the antenna interface of the tested communication module through a coaxial cable. The interference generating assembly and the coupler, the signal receiving module and the coupler and the tested communication module are connected by coaxial cables, so that the condition that the interference is generated on the tested communication module by the surrounding environment can be prevented, and the accuracy of the network searching time determined by the tested communication module is ensured.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of a network signal generating apparatus according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an interference generating component in a network signal generating apparatus according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a network signal generating device connected to a communication module under test according to a second embodiment of the present invention;
fig. 4 is a schematic flow chart of a method for testing network finding time according to a third embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an upper computer according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a system for network searching time testing according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present invention, and the embodiments may be mutually incorporated and referred to without contradiction.
A first embodiment of the present invention relates to a network signal generating apparatus. The network signal generating device may be connected to a tested communication module, and is configured to determine a network finding time of the tested communication module in different network environments, and connect the network signal generating device 1 to the tested communication module before the tested communication module finds a network, where the tested communication module may be a wireless communication module, for example: a communication module of a Global System for Mobile (GSM) communication System, a communication module of a Narrow-Band Internet of Things (NB-IoT) communication System, and the like. The network signal generating apparatus 1 includes: the interference generating component 101, the signal receiving module 102 and the coupler 103, the specific structure of the network signal generating device 1 is shown in fig. 1.
The interference generating component 101 and the signal receiving module 102 are respectively connected with the coupler 103; the output end of the coupler 103 is used for connecting with the communication module to be tested. Specifically, the output end of the interference generating component 101 and the output end of the signal receiving module 102 are respectively connected to the coupler 103, and the output end of the coupler 103 is used for being connected to an antenna interface of the communication module to be tested, so that the communication module to be tested can find a network according to the modulated network signal and determine the time for finding the network.
Fig. 2 shows a specific structure of the interference generating assembly 101, which includes: the control module 1011 and the signal generating module 1012, wherein the control module 1011 is connected with the signal generating module 1012 in a communication way; the control module 1011 is configured to control the signal generating module 1012 to generate a preset interference signal; an output of the signal generation module 1012 is connected to the antenna interface of the coupler 103.
Specifically, the control module 1011 may be an electronic device with an operation function and an input function, such as: in a computer, the control module 1011 is communicatively connected to the signal generating module 1012, so that the control module 1011 can control the signal generating module 1012 to generate a predetermined interference signal.
In one specific implementation, the control module 1011 includes: an adjusting submodule and an executing submodule; the adjusting submodule is used for adjusting the configuration information of the signal generating module; an execution sub-module, configured to send the adjusted configuration information to the signal generation module 1012, and control the signal generation module 1012 to generate an interference signal according to the adjusted configuration information; the configuration information includes: the transmission power and/or communication system of the generated interference signal is required.
Specifically, the output end of the adjusting submodule is connected to the input end of the executing submodule, the input end of the adjusting submodule is used as the input end of the control module 1011, and the output end of the executing submodule is used as the output end of the control module 1011. The tuning submodule is specifically configured to: acquiring information of a preset interference environment; determining configuration information according to the information of the preset interference environment and the corresponding relation between the information of the preset interference environment and the configuration information; and adjusting the original configuration information of the signal generation module according to the determined configuration information.
Specifically, the configuration information may be a communication system, such as a GSM communication system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) communication system, a Long Term Evolution (Long Term Evolution, LTE) system, an NB-IoT system, and the like, or a transmission power, or a communication system and a transmission power. The adjusting submodule may determine configuration information corresponding to the acquired information of the preset interference environment according to the acquired information of the preset interference environment and a corresponding relationship between the information of the preset interference environment and the configuration information, where the information of the preset interference environment may be manually input, and the corresponding relationship between the information of the preset interference environment and the configuration information may be preset according to an actual application. After determining the configuration information corresponding to the information of the preset interference environment, the adjusting submodule adjusts the original configuration information of the signal generating module to the determined configuration information, and the executing submodule acquires the determined configuration information and sends the adjusted configuration information to the signal generating module 1012; the control signal generating module 1012 generates a predetermined interference signal according to the adjusted configuration information.
It should be noted that the information of the preset interference environment includes: presetting level information of an interference environment; the level information of the preset interference environment is determined based on a signal-to-noise ratio corresponding to the preset interference environment, and the level information of the preset interference environment is inversely proportional to the signal-to-noise ratio corresponding to the preset interference environment. Because the interference condition in the network environment can be measured by the signal-to-noise ratio of the network environment, the larger the signal-to-noise ratio is, the smaller the mixed noise is; thus, the level of the preset interference environment may be determined based on the signal-to-noise ratio. The SNR is 10lg (PS/PN), where PS denotes the power of the desired signal and PN denotes the power of the noise signal, i.e., PS/PN denotes the desired power between the desired signal and the noise signal. In this embodiment, the interference signal may be used as a noise signal, and the signal-to-noise ratio of the preset interference environment may be calculated through the effective signal and the interference signal; the higher the signal-to-noise ratio is, the lower the level of the determined preset interference environment is, and the lower the level is, the less interference is caused by the preset interference environment. For example, the signal-to-noise ratio in the range of a to B may be set as the level a corresponding to the level information of the preset interference environment, and the signal-to-noise ratio in the range of c to d may be set as the level B corresponding to the level information of the preset interference environment, where a < B < c < d, and the level a is higher than the level B, that is, the interference of the preset interference environment of the level a is greater than the interference of the preset interference environment of the level B.
In one specific implementation, the signal receiving module 102 receives the effective signal through its own antenna interface, and the effective signal is provided by an operator. Two input ends of the coupler 103 receive an effective signal and an interference signal respectively, and the effective signal and the interference signal are mixed by the coupler 103 to obtain a modulated network signal, and the modulated network signal is transmitted to an antenna interface of the communication module to be tested; and the tested communication module carries out network finding according to the modulated network signal.
It should be noted that, after the network signal generating device 1 is connected to the communication module to be tested, the communication module to be tested may be calibrated manually by using the comprehensive tester, so as to ensure that the radio frequency transceiving function of the communication module to be tested is normal. Before the interference generating component 101 is operated, a connection between the control module 1011 and the signal generating module 1012 is established, so that the control module 1011 can control the signal generating module 1012 to generate a predetermined interference signal.
The measured module needs to determine the network searching time under different interference environments, the information of the preset interference environment can be manually input into the control module 1011, the adjusting submodule of the control module 1011 acquires the input information of the preset interference environment, the configuration information of the preset interference environment is determined, the execution submodule sends the adjusted configuration information to the signal generating module 1012, and the signal generating module 1012 is controlled to generate the preset interference signal according to the configuration information. An antenna interface of the coupler 103 receives an effective signal sent by the signal receiving module 102 and a preset interference signal generated by the signal generating module 102, the coupler 103 mixes the interference signal and the effective signal to obtain a modulated network signal, an output end of the coupler 103 is connected with an antenna interface of the communication module to be tested, the communication module to be tested receives the modulated network signal, network searching is performed according to the modulated network signal, and network searching time is determined.
The process of determining the network finding time by the tested communication module according to the modulated network signal is described below.
And the tested communication module determines a network finding algorithm according to the grade of the interference condition and carries out network finding according to the determined network finding algorithm. The interference condition level can be divided into three levels, such as: the network environment quality in the signal-to-noise ratio grade is between the network environment quality with the excellent signal-to-noise ratio grade and the network environment quality with the poor signal-to-noise ratio grade. If the tested communication module can calculate the signal-to-noise ratio according to the modulated network signal, and further determines the level of the current interference condition according to the signal-to-noise ratio, for example, determines that the signal-to-noise ratio level of the network environment is excellent, the fastest network searching frequency is selected for searching the network; if the tested communication module determines the signal-to-noise ratio grade of the current network environment, a medium network searching frequency is selected for network searching, and if the tested communication module determines the signal-to-noise ratio grade difference of the current network environment, the slowest network searching frequency is selected for network searching. The tested communication module obtains the network searching time of the communication module and sends the determined network searching time to an upper computer, the upper computer can be a computer, and the upper computer compares the determined network searching time with the network searching time threshold under respective interference conditions to determine whether the network searching algorithm of the communication module is effective and reasonable. For example, under the condition that the signal-to-noise ratio level is excellent, the network searching time threshold is 10 seconds, and if the actual network searching time of the communication module to be tested is less than 10 seconds, it indicates that the network searching algorithm of the communication module is reasonable; under the condition of the level difference of the signal to noise ratio, the network searching time threshold is 10 minutes, and if the actual network searching time of the communication module is less than 10 minutes, the network searching algorithm of the communication module is reasonable.
Compared with the prior art, the method and the device have the advantages that the coupler mixes the interference signal and the effective signal to obtain the modulated network signal, the output end of the coupler is connected with the tested communication module to provide a network environment for the tested communication module to find the network, and the interference generating assembly generates the preset interference signal, so that the modulated network signal output by the coupler is controllable, the interference signal in the network signal is stabilized, and the accuracy of the network finding time determined by the communication module is ensured; meanwhile, interference signals contained in the modulated network signals can be used for simulating the interference signals in the network environment, so that workers can determine the network searching time under different network environments without carrying the communication module to various field environments, the workload of workers is reduced, and the efficiency of determining the network searching time by the communication module is improved.
A second embodiment of the present invention relates to a network signal generating apparatus. The second embodiment is a further improvement of the first embodiment, and the main improvements are as follows: in the second embodiment of the present invention, the interference generating member 101 and the coupler 103 are connected by a coaxial cable; the output end of the signal receiving module 102 is connected with the coupler 103 through a coaxial cable; the output end of the coupler 103 is connected with the antenna interface of the communication module to be tested through a coaxial cable. The specific connection structure between the network signal generating device 1 and the communication module 2 to be tested is shown in fig. 3.
Specifically, the output end of the signal generating module 1012 in the interference generating component 101 is connected to the antenna interface of the coupler 103 through a coaxial cable, the output end of the signal receiving module 102 is connected to the antenna interface of the coupler 103 through a coaxial cable, and the output end of the coupler 103 is electrically connected to the antenna interface of the communication module 2 to be tested through a coaxial cable. The coaxial cable connection can ensure that the modulated network signal is not influenced by the surrounding environment in the transmission process, and further ensure the accuracy of the network searching time determined by the tested communication module 2.
The third embodiment of the invention relates to a method for testing network finding time, which is applied to an upper computer, wherein the upper computer is connected with a tested communication module, and a network generating device in the first embodiment or the second embodiment is connected with the tested communication module. The network generating device generates modulated network signals, the tested communication module determines network finding time according to the modulated network signals, and the determined network finding time is uploaded to the upper computer. The specific flow of the network finding time testing method is shown in fig. 4.
Step 301: the network searching time determined by the tested communication module based on different modulated network signals is obtained, and the modulated network signals are generated by the network signal generating device in the first embodiment or the second embodiment based on preset interference signals.
Specifically, the network signal generating device generates a modulated network signal based on a preset interference signal, where the modulated network signal includes an interference signal and an effective signal, and a process of generating the modulated network signal by the network signal generating device is substantially the same as that in the first embodiment or the second embodiment, and will not be described herein again.
In the network finding time test process, the network finding time of the tested communication module in different levels of preset interference environments needs to be obtained, the modulated network signals received in the different levels of preset interference environments are different, and the modulated network signals generated by simulation through the network signal generating device are different.
In a specific implementation, the different modulated network signals are network signals in preset interference environments of different levels; each modulated network signal is generated by a network signal generating device in the first embodiment or the second embodiment according to the level information of a preset interference environment, the level information of the preset interference environment is determined based on the signal-to-noise ratio corresponding to the preset interference environment, and the level information of the preset interference environment is inversely proportional to the signal-to-noise ratio corresponding to the preset interference environment; and the network searching time threshold value corresponding to each network signal is set based on the interference environment of the level corresponding to each network signal.
Step 302: and determining the test result of the network finding time of the tested communication module according to the network finding time and the network finding time threshold value corresponding to each modulated network signal.
Specifically, each network finding time has a corresponding modulated network signal, and the following processing is performed for each network finding time:
and acquiring a modulated network signal corresponding to the network finding time, and searching a network finding time threshold corresponding to the modulated network signal according to the modulated network signal, wherein the network finding time threshold is preset based on practical application. And comparing the received network searching time with the time threshold, if the received network searching time is greater than the time threshold, determining that the network searching algorithm of the communication module to be tested based on the modulated network signal is unreasonable, and if the received network searching time is less than the time threshold, determining that the network searching algorithm of the communication module to be tested based on the modulated network signal is reasonable.
For example, the upper computer receives 1 network finding time t1 and the modulated network signal F1 corresponding to the network finding time t1, and if the time threshold corresponding to the modulated network signal F1 is 10 seconds, it is determined whether the network finding time t1 is greater than 10 seconds, if so, it is determined that the network finding algorithm of the communication module to be tested based on the modulated network signal F1 is unreasonable, and if not, it is determined that the network finding algorithm of the communication module to be tested based on the modulated network signal F1 is reasonable.
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, which are all within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
It should be understood that this embodiment is a method example corresponding to the first embodiment, and may be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.
A fourth embodiment of the present invention relates to an upper computer, and the specific configuration of the upper computer 5 is as shown in fig. 5, and includes: at least one processor 501; and a memory 502 communicatively coupled to the at least one processor 501; the memory 502 stores instructions executable by the at least one processor 501, and the instructions are executed by the at least one processor 501, so that the at least one processor 501 can execute the method for finding network time in the third embodiment.
The memory 502 and the processor 501 are connected by a bus, which may include any number of interconnected buses and bridges that link one or more of the various circuits of the processor 501 and the memory 502. The bus may also link various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 501 is transmitted over a wireless medium through an antenna, which further receives the data and transmits the data to the processor 501.
The processor 501 is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory may be used to store data used by the processor in performing operations.
Those skilled in the art can understand that all or part of the steps in the method of the foregoing embodiments may be implemented by a program to instruct related hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps of the method described in the embodiments of the present application. 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.
A fifth embodiment of the present invention relates to a network searching time testing system, which has a specific structure as shown in fig. 6 and includes: the network signal generating device 1 according to the first or second embodiment, the communication module 2 to be tested, and the host computer 5 according to the fourth embodiment.
The output end of the network signal generating device 1 is connected with the antenna interface of the tested communication module 2, and the upper computer 5 is connected with the tested communication module 2; the tested communication module 2 searches for the network according to the received different modulated network signals and determines the network searching time of the different modulated network signals; and the upper computer 5 determines the test result of the network finding time of the tested communication module according to the network finding time and the network finding time threshold value corresponding to each modulated network signal.
It should be understood that this embodiment is a system example corresponding to the first embodiment, and may be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.
Claims (10)
1. A network signal generating apparatus, comprising: the system comprises an interference generating component for generating an interference signal, a signal receiving module for receiving an effective network signal, and a coupler for mixing the interference signal and the effective network signal to obtain a modulated network signal;
the output end of the interference generating assembly and the output end of the signal receiving module are respectively connected with the coupler;
and the output end of the coupler is used for being connected with an antenna interface of the tested communication module and transmitting the obtained modulated network signal to the antenna interface of the tested communication module, so that the tested communication module can find a network according to the modulated network signal and determine the network finding time.
2. The network signal generating apparatus of claim 1, wherein the interference generating component comprises: the control module is in communication connection with the signal generation module;
the control module is used for controlling the signal generation module to generate a preset interference signal;
and the output end of the signal generating module is connected with the antenna interface of the coupler.
3. The network signal generating device of claim 2, wherein the control module comprises: an adjusting submodule and an executing submodule;
the adjusting submodule is used for adjusting the configuration information of the signal generating module;
the execution submodule is used for sending the adjusted configuration information to the signal generation module and controlling the signal generation module to generate an interference signal according to the adjusted configuration information;
the configuration information includes: the transmission power and/or communication system of the generated interference signal is required.
4. The network signal generating device according to claim 3, wherein the adjusting submodule is specifically configured to:
acquiring information of a preset interference environment;
determining the configuration information according to the information of the preset interference environment and the corresponding relation between the information of the preset interference environment and the configuration information;
and adjusting the original configuration information of the signal generation module according to the determined configuration information.
5. The apparatus according to claim 4, wherein the information of the predetermined interference environment comprises: presetting level information of an interference environment;
the level information of the preset interference environment is determined based on the signal-to-noise ratio corresponding to the preset interference environment, and the level information of the preset interference environment is inversely proportional to the signal-to-noise ratio corresponding to the preset interference environment.
6. The network signal generating apparatus according to any one of claims 1 to 5, wherein the interference generating component and the coupler are connected by a coaxial cable;
the output end of the signal receiving module is connected with the coupler through a coaxial cable;
the output end of the coupler is connected with the antenna interface of the tested communication module through a coaxial cable.
7. A method for testing network searching time is characterized in that the method is applied to an upper computer and comprises the following steps:
acquiring network searching time determined by a tested communication module based on different modulated network signals, wherein the modulated network signals are generated by the network signal generating device according to any one of claims 1 to 6 based on a preset interference signal;
and determining a test result of the network finding time of the tested communication module according to the network finding time and the network finding time threshold value corresponding to each modulated network signal.
8. The method for testing network finding time as claimed in claim 7, wherein the different modulated network signals are network signals under interference environments of different levels;
each modulated network signal is generated by the network signal generating device according to claim 5 according to the level information of a preset interference environment, wherein the level information of the preset interference environment is determined based on the signal-to-noise ratio corresponding to the preset interference environment, and the level information of the preset interference environment is inversely proportional to the signal-to-noise ratio corresponding to the preset interference environment;
and the network searching time threshold value corresponding to each network signal is set based on the interference environment of the level corresponding to each network signal.
9. A host computer, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of net time testing as claimed in claim 7 or 8.
10. A system for network discovery time testing, comprising: a tested communication module, an upper computer according to claim 9, and a network signal generating device according to any one of claims 1-6;
the output end of the network signal generating device is connected with an antenna interface of the tested communication module, and the upper computer is connected with the tested communication module;
the tested communication module searches for a network according to the received different modulated network signals and determines the network searching time of the different modulated network signals;
and the upper computer determines a test result of the network finding time of the tested communication module according to the network finding time and the network finding time threshold value corresponding to each modulated network signal.
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