An automatic interference power control method and device for interference between two nodes

Abstract

The application provides an automatic interference power control method and device for interference of two nodes, which comprises the following steps: firstly, constructing a topology network structure of an end machine node in a multi-port channel simulator; secondly, monitoring interference power of different paths by a path planning in the multi-port channel simulator, and feeding back the interference power of different paths to a controller through a network cable; finally, judging the correctness and consistency of the power of different paths by the controller, so that the occurrence of false alarm events is effectively avoided, and the reliability of test results is improved.

Description

Technical Field

[0001] This invention relates to the field of network testing technology, and in particular to an automatic interference power control method and apparatus for interference between two nodes. Background Technology

[0002] In a laboratory test environment for injection-based radio frequency interconnect networks, the environmental controller issues control commands to an interference source, causing it to interfere with multiple nodes. However, errors can easily occur in the interference source's output signal, leading to inconsistencies with the environmental controller's planned interference signal and parameter mismatches. Furthermore, inconsistent interference values ​​reaching multiple nodes are more likely to emerge. Traditional methods for monitoring the interference source's output spectrum focus only on a single node and lack a method for determining the consistency of the interference source's output power. Therefore, an automatic adjustment control method for interference power between two nodes is needed. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that, in view of the lack of a method for determining the consistency of the output power of interference sources in the prior art, the present invention provides an automatic interference power control method and device for interference between two nodes.

[0004] The technical solution adopted in this invention is an automatic interference power control method for interference between two nodes, comprising:

[0005] Step 1: Construct a topology network structure in the multi-port channel simulator that includes an interference source and k terminal nodes, wherein the topology network structure includes path planning from the interference source to the kth terminal node and from the interference source to the spectrum analyzer.

[0006] Step 2: Use the multi-port channel simulator to network the k terminal nodes to establish a communication connection, and use the interference source to transmit comb spectrum interference to the kth and k+1th terminal nodes through the multi-port channel simulator. The interference source transmits comb spectrum interference to the kth terminal node through a first path and to the k+1th terminal node through a second path.

[0007] Step 3: The spectrum analyzer measures the interference power suffered by node k as P_k and the interference power suffered by node k+1 as P_(k+1), and feeds P_k and P_(k+1) back to the controller;

[0008] Step 4: If P_k = P_(k+1) and P_k = P_0 (P_0 is the interference power set by the controller to reach the kth and k+1th nodes), then the interference test configuration has been completed and the method ends; otherwise, proceed to step 5.

[0009] Step 5: When P_k = P_(k+1) and P_k ≠ P_0, the controller calculates P_d = P_k - P_0, sends P_d to the multi-port channel simulator, and controls the attenuation value of the first path and the second path to increase P_d, and the method ends; otherwise, proceed to step 6.

[0010] Step 6: If P_k≠P_(k+1) and P_k≠P_0, and P_(k+1)=P_0, then the controller calculates P_d=P_k-P_0, sends P_d to the multi-port channel simulator, and controls the attenuation value of the first path to increase by P_d, and the method ends; otherwise, proceed to step 7.

[0011] Step 7: When P_k≠P_(k+1) and P_k=P_0, P_(k+1)≠P_0, the controller calculates P_d=P_(k+1)-P_0, sends P_d to the multi-port channel simulator, and controls the attenuation value of the second path to increase P_d, and the method ends; otherwise, proceed to step 8.

[0012] Step 8: When P_k≠P_(k+1) and P_k≠P_0, P_(k+1)≠P_0, the controller calculates P_d_k=P_k-P_0 and P_d_(k+1)=P_(k+1)-P_0, and sends P_d_k and P_d_(k+1) to the multi-port channel simulator, and controls the attenuation value of the first path to increase by P_d_k and the attenuation value of the second path to increase by P_d_(k+1).

[0013] In one implementation, the number k of the terminal nodes satisfies: k≥2.

[0014] In one embodiment, the interference source establishes a connection with the spectrum analyzer through a third path corresponding to the second path and a fourth path corresponding to the first path; wherein the fading value of the third path is consistent with the fading value of the second path, and the fading value of the fourth path is consistent with the fading value of the first path.

[0015] Another aspect of the present invention provides an automatic interference power control device for two-node interference, including a multi-port channel simulator, an interference source, k terminal nodes, a controller, and a spectrum analyzer;

[0016] The controller, the interference source, the spectrum analyzer, and the k terminal nodes are respectively connected to the multi-port channel simulator. The interference source is connected to the controller, the spectrum analyzer is connected to the controller, and the device for determining the correctness of the comb spectrum output by the interference source is configured to implement the automatic interference power control method for two-node interference as described in any of the above.

[0017] Another aspect of the present invention provides an electronic device comprising the interference power automatic control device for interference between two nodes as described above.

[0018] By adopting the above technical solution, the present invention has at least the following advantages:

[0019] This invention employs an automatic interference power adjustment control method for interference between two nodes. First, a topology network structure of the terminal nodes is constructed in a multi-port channel simulator. Second, a spectrum analyzer monitors the interference power of different paths through path planning in the multi-port channel simulator. The spectrum analyzer feeds back the interference power received from different paths to the controller via a network cable. Finally, the controller judges the correctness and consistency of the power of different paths. This method effectively avoids false alarms and improves the reliability of test results. Attached Figure Description

[0020] Figure 1 This is a flowchart of an automatic interference power control method for interference between two nodes according to an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the topology network structure of network nodes, interference sources, and a spectrum analyzer according to an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the composition of an automatic interference power control device for interference between two nodes according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention;

[0024] Figure 5 This is a flowchart of another automatic interference power control method for interference between two nodes according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the topology of a network node, an interference source, and a spectrum analyzer according to an application example of the present invention. Detailed Implementation

[0026] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0027] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for ease of illustration. The drawings are for illustrative purposes only and are not drawn to scale.

[0028] It should also be understood that the terms "comprising," "including," "having," "containing," and / or "comprising," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. Furthermore, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire listed feature, not individual elements in the list. Additionally, when describing embodiments of this application, the word "may" is used to mean "one or more embodiments of this application." And the term "exemplary" is intended to refer to an example or illustration.

[0029] As used herein, the terms “basically,” “approximately,” and similar terms are used as terms of approximation rather than terms of degree, and are intended to describe inherent biases in measured or calculated values ​​that will be recognized by those skilled in the art.

[0030] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms (e.g., those defined in common dictionaries) shall be interpreted as having the meaning consistent with their meaning in the context of the relevant art and shall not be interpreted in an idealized or overly formal sense unless expressly so specified herein.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] The steps described in the specification and the flowcharts in the accompanying drawings of this invention are not necessarily to be strictly followed according to the step numbers; the execution order of the steps can be changed. Furthermore, certain steps can be omitted, multiple steps can be combined into one step, and / or one step can be broken down into multiple steps.

[0033] To facilitate understanding, the names of elements involved in the search methods in this method will be explained:

[0034] Nodes are divided into network nodes and interference nodes. Network nodes are the nodes of the network under test, while interference nodes are part of the electromagnetic environment and emit interference signals.

[0035] The first embodiment of the present invention provides an automatic interference power control method for interference between two nodes, such as... Figure 1 As shown, the specific steps include the following:

[0036] Step 1: Initialization. Construct the topology network structure of terminal nodes 1 to K in the multi-port channel simulator, including path planning from the interference source to the k-th node and the spectrum analyzer, as follows: Figure 2 As shown:

[0037] Step 2: Network nodes 1 through K using the multi-port channel simulator to achieve normal communication between them. The interference source can transmit comb-spectrum interference to the k-th and k+1-th nodes through the multi-port channel simulator. Specifically, through... Figure 2 The first path (number 1 in the figure) is "interference source -> kth node" and the second path (number 2) is "interference source -> k+1th node". The fading value of the third path (number 3) is consistent with the fading value of the second path, and the fading value of the fourth path (number 4) is consistent with the fading value (dBm) of the first path, so as to realize the real-time monitoring of the interference suffered by the kth and k+1th nodes by the spectrum analyzer.

[0038] Step 3: The interference source performs equal-power interference on nodes k and k+1. The spectrum analyzer monitors this and can measure the interference power suffered by node k as P_k and the interference power suffered by node k+1 as P_(k+1). The spectrum analyzer feeds back P_k and P_(k+1) to the controller, and the controller judges the rationality.

[0039] Step 4: If P_k = P_(k+1) and P_k = P_0 (P_0 is the interference power set by the controller to reach the kth and k+1th nodes), then the interference test configuration has been completed and the method ends; otherwise, proceed to step 5.

[0040] Step 5: When P_k = P_(k+1) and P_k ≠ P_0, the controller calculates P_d = P_k - P_0, sends P_d to the multi-port channel simulator, and controls the attenuation value of the first path and the second path to increase by P_d. P_d can be a negative value. The method ends; otherwise, proceed to step 6.

[0041] Step 6: If P_k≠P_(k+1) and P_k≠P_0, and P_(k+1)=P_0, then the controller calculates P_d=P_k-P_0, sends P_d to the multi-port channel simulator, and controls the attenuation value of the first path to increase by P_d. P_d can be a negative value. The method ends; otherwise, proceed to step 7.

[0042] Step 7: When P_k≠P_(k+1) and P_k=P_0, P_(k+1)≠P_0, the controller calculates P_d=P_(k+1)-P_0, sends P_d to the multi-port channel simulator, and controls the attenuation value of the second path to increase by P_d. P_d can be a negative value, and the method ends; otherwise, proceed to step 8.

[0043] Step 8: When P_k≠P_(k+1) and P_k≠P_0, P_(k+1)≠P_0, the controller calculates P_d_k=P_k-P_0 and P_d_(k+1)=P_(k+1)-P_0, and sends P_d_k and P_d_(k+1) to the multi-port channel simulator. It also controls the attenuation value of the first path to increase by P_d_k and the attenuation value of the second path to increase by P_d_(k+1). P_d_k and P_d_(k+1) can be negative values. The method ends.

[0044] It should be noted that in this embodiment, the number of terminal nodes k satisfies: k≥2.

[0045] Compared to existing technologies, the method provided in this embodiment has at least the following advantages: This invention employs an automatic interference power adjustment control method for interference between two nodes. First, a topology network structure of the terminal nodes is constructed in a multi-port channel simulator. Second, the spectrum analyzer monitors the interference power of different paths through path planning in the multi-port channel simulator. The spectrum analyzer feeds back the interference power of different paths to the controller via a network cable. Finally, the controller judges the correctness and consistency of the power of different paths. This method effectively avoids false alarms and improves the reliability of test results.

[0046] The second embodiment of the present invention, corresponding to the first embodiment, introduces a device for determining the correctness of the comb spectrum output by an interference source, such as... Figure 3 As shown, it includes the following components: a multi-port channel simulator, an interference source, k terminal nodes, a controller, and a spectrum analyzer;

[0047] The controller, interference source, spectrum analyzer, and k terminal nodes are connected to the multi-port channel simulator, the interference source is connected to the controller, and the spectrum analyzer is connected to the controller.

[0048] For example, the terminal node is connected to the multi-port channel simulator via an RF cable, and the controller is connected to the multi-port channel simulator, the interference source, and the spectrum analyzer via a network cable. Furthermore, the interference source can input interference signals into the multi-port channel simulator via the RF cable, and the multi-port channel simulator can output signals to the spectrum analyzer via the RF cable.

[0049] It is understood that the device provided in this embodiment is used to implement the automatic interference power control method for interference between two nodes as described in the first embodiment. The specific content of the method is as shown above, and will not be repeated here.

[0050] A third embodiment of the present invention provides an electronic device, such as... Figure 4As shown, the electronic device includes an automatic interference power control device for interference between two nodes as described in the second embodiment. It can be used to implement the automatic interference power control method for interference between two nodes as described in the first embodiment. The specific content of the method is as shown above, and will not be repeated here.

[0051] The fourth embodiment of the present invention is based on the above embodiments and combined with the appendix. Figure 5 Here is an application example of the present invention.

[0052] For reference Figure 5 , Figure 5 The overall flow of the automatic interference power control method for two-node interference in this embodiment is described. First, the topology network structure of the terminal nodes is constructed in the multi-port channel simulator. Second, the spectrum analyzer monitors the interference power of different paths through path planning in the multi-port channel simulator. The spectrum analyzer feeds back the interference power of different paths to the controller through the network cable. Finally, the controller judges the correctness and consistency of the power of different paths.

[0053] To simplify the analysis, the channel simulator used in this example system has 8 ports, all in full-duplex mode. Five terminal nodes are connected to the channel simulator: one interference source and one spectrum analyzer. In specific operation:

[0054] Step 1: Initialization. Construct the topology network structure of terminal nodes 1-5 in the multi-port channel simulator, including path planning from the interference source to the 4th and 5th nodes and the spectrum analyzer, such as... Figure 6 As shown:

[0055] Step 2: Network nodes 1-5 using the multi-port channel simulator to achieve normal communication between them. The interference source can transmit comb-spectrum interference to nodes 4 and 5 via the multi-port channel simulator (through...). Figure 2 The spectrum analyzer monitors the interference of the fourth and fifth nodes in real time. The fading value of path 3 is consistent with the fading value of path 2, and the fading value of path 4 is consistent with the fading value (dBm) of path 1, which is in line with the "interference source -> fourth node" path 1 and "interference source -> fifth node" path 2.

[0056] Step 3: The interference source performs equal-power interference on nodes 4 and 5. The spectrum analyzer monitors the interference and measures the interference power suffered by node k as P_k = -70dBm and the interference power suffered by node k+1 as P_(k+1) = -72dBm. The spectrum analyzer feeds back P_k and P_(k+1) to the controller, and the controller judges the rationality.

[0057] Step 4: When P_k≠P_(k+1) and P_k=P_0=-70dBm, P_(k+1)≠P_0=-70dBm, the controller calculates P_d=P_(k+1)-P_0=-2dB, sends P_d=-2dB to the multi-port channel simulator, and increases the attenuation value of path 2 by -2dB. The method ends.

[0058] Through the description of specific embodiments, a more in-depth and specific understanding should be gained of the technical means and effects adopted by the present invention to achieve the intended purpose. However, the accompanying drawings are only provided for reference and illustration and are not intended to limit the present invention.

Claims

1. An automatic control method for interference power in response to interference between two nodes, characterized in that, include: Step 1: Construct a topology network structure in the multi-port channel simulator that includes an interference source and k terminal nodes, wherein the topology network structure includes path planning from the interference source to the kth terminal node and from the interference source to the spectrum analyzer. Step 2: Use the multi-port channel simulator to network the k terminal nodes to establish a communication connection, and use the interference source to transmit comb spectrum interference to the kth and k+1th terminal nodes through the multi-port channel simulator. The interference source transmits comb spectrum interference to the kth terminal node through a first path and to the k+1th terminal node through a second path. Step 3: The spectrum analyzer measures the interference power suffered by node k as P_k and the interference power suffered by node k+1 as P_(k+1), and feeds P_k and P_(k+1) back to the controller; Step 4: If P_k = P_(k+1) and P_k = P_0, where P_0 is the interference power set by the controller to reach the k-th and k+1-th nodes, then the interference test configuration has been completed and the method ends; otherwise, proceed to step 5. Step 5: When P_k = P_(k+1) and P_k ≠ P_0, the controller calculates P_d = P_k - P_0, sends P_d to the multi-port channel simulator, and controls the attenuation value of the first path and the second path to increase P_d, and the method ends; otherwise, proceed to step 6. Step 6: If P_k≠P_(k+1) and P_k≠P_0, and P_(k+1)=P_0, then the controller calculates P_d=P_k-P_0, sends P_d to the multi-port channel simulator, and controls the attenuation value of the first path to increase by P_d, and the method ends; otherwise, proceed to step 7. Step 7: If P_k≠P_(k+1) and P_k=P_0, P_(k+1)≠P_0, then the controller calculates P_d=P_(k+1)-P_0, sends P_d to the multi-port channel simulator, and controls the attenuation value of the second path to increase P_d, and the method ends; otherwise, proceed to step 8. Step 8: When P_k≠P_(k+1) and P_k≠P_0, P_(k+1)≠P_0, the controller calculates P_d_k=P_k-P_0 and P_d_(k+1)=P_(k+1)-P_0, and sends P_d_k and P_d_(k+1) to the multi-port channel simulator, and controls the attenuation value of the first path to increase by P_d_k and the attenuation value of the second path to increase by P_d_(k+1).

2. The automatic interference power control method for interference between two nodes as described in claim 1, characterized in that, The number of terminal nodes k satisfies: k≥2.

3. The automatic interference power control method for interference between two nodes as described in claim 1, characterized in that, The interference source establishes a connection with the spectrum analyzer through a third path corresponding to the second path and a fourth path corresponding to the first path; wherein the fading value of the third path is consistent with the fading value of the second path, and the fading value of the fourth path is consistent with the fading value of the first path.

4. An automatic interference power control device for interference between two nodes, characterized in that, Includes a multi-port channel simulator, interference sources, k terminal nodes, a controller, and a spectrum analyzer; The controller, the interference source, the spectrum analyzer, and the k terminal nodes are respectively connected to the multi-port channel simulator. The interference source is connected to the controller, and the spectrum analyzer is connected to the controller. The automatic interference power control device for two-node interference is configured to implement the automatic interference power control method for two-node interference as described in any one of claims 1 to 3.

5. An electronic device, characterized in that, The electronic device includes an automatic interference power control device for interference between two nodes as described in claim 4.

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