Synchronous device traction characteristic test method and device based on SSM response rule assistance

Abstract

The application relates to the technical field of traction range test, and discloses a synchronous equipment traction characteristic test method based on SSM response rule assistance. The synchronous equipment traction characteristic test method comprises the following steps: a synchronous signal with a SSM quality level of a first level and a frequency offset of a preset frequency offset is sent to a synchronous equipment; the frequency offset of the synchronous signal is adjusted according to a measured characteristic parameter, and a feedback signal sent by the synchronous equipment is continuously received; in the case that the SSM quality level of the feedback signal changes from a second level to a third level, the adjustment of the frequency offset of the synchronous signal is stopped, and the measured characteristic parameter is determined according to the adjusted frequency offset. The synchronous equipment traction characteristic test method can reduce personnel operation and improve the convenience of testing the synchronous equipment. The application further discloses a synchronous equipment traction characteristic test device based on SSM response rule assistance.

Description

Technical Field

[0001] This application relates to the field of traction range testing technology, for example to a method and apparatus for testing the traction characteristics of synchronous equipment based on SSM response rules. Background Technology

[0002] The pull range is an important characteristic of the clock equipment and transmission equipment that supports synchronization functions in the synchronization network node. This characteristic includes three parameters: hold-in range, pull-in range, and pull-out range.

[0003] The YDT 1012-1999 standard for digital synchronous node clocks and their timing characteristics specifies the pull-in / hold-in range for Level 2 and Level 3 node clocks as shown in Table 1. For packet transport networks (PTN) and optical transport networks (OTN), the minimum pull-in range is specified as ≥ ±4.6. 10 -6 It is recommended that the minimum traction range be ≥ ±4.6. 10 -6 .

[0004] Table 12 shows the pull-in / hold-in range for Level 12 and Level 3 node clocks.

[0005] In the process of implementing the embodiments of this application, at least the following problems were found in the related technology: Verifying whether the synchronization equipment meets the requirements of the corresponding traction range is a common and important test item. Current test methods require personnel to constantly manually adjust frequency offset, etc., which involves frequent operations and poor test convenience. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This application provides a method and apparatus for testing the traction characteristics of synchronization equipment based on Synchronization Status Message (SSM) response rules, in order to reduce the frequency of personnel operation and improve the convenience of testing.

[0008] In some embodiments, the method for testing the traction characteristics of a synchronization device based on SSM response rules includes: sending a synchronization signal with an SSM quality level of first level and a frequency offset of preset frequency offset to the synchronization device; causing the synchronization device to send a feedback signal with an SSM quality level of second level to the synchronization tester according to the tracking relationship between the local clock and the synchronization signal; adjusting the frequency offset of the synchronization signal according to the characteristic parameter under test, and continuously receiving the feedback signal sent by the synchronization device; stopping the adjustment of the frequency offset of the synchronization signal when the SSM quality level of the feedback signal changes from the second level to the third level, and determining the characteristic parameter under test according to the adjusted frequency offset; wherein, one of the second level and the third level is the same as the first level or represents the lowest SSM quality, and the other represents an SSM quality lower than the SSM quality represented by the first level, but higher than the lowest SSM quality.

[0009] Optionally, after sending the synchronization signal to the synchronization device for the first time, the frequency offset of the synchronization signal is adjusted after a first delay; wherein the first delay corresponds to the clock inertia of the synchronization device.

[0010] Optionally, adjusting the frequency offset of the synchronization signal and continuously receiving feedback signals sent by the synchronization device includes: continuously receiving feedback signals sent by the synchronization device for a second duration after adjusting the frequency offset of the synchronization signal; if the SSM quality level of the feedback signal remains at the second level, then continuing to adjust the frequency offset of the synchronization signal; wherein, the second duration corresponds to the clock inertia and response delay of the SSM quality information of the synchronization device.

[0011] Optionally, the frequency offset of the synchronization signal can be adjusted step by step.

[0012] Optionally, adjusting the frequency offset of the synchronization signal according to the measured characteristic parameter includes: increasing the frequency offset of the synchronization signal when the measured characteristic parameter is in a positive pull-out range; decreasing the frequency offset of the synchronization signal when the measured characteristic parameter is in a positive pull-in range; decreasing the frequency offset of the synchronization signal when the measured characteristic parameter is in a negative pull-out range; and increasing the frequency offset of the synchronization signal when the measured characteristic parameter is in a negative pull-in range.

[0013] Optionally, determining the measured characteristic parameter based on the adjusted frequency offset includes: recording the time interval error (TIE) curve while stopping the adjustment of the synchronization signal's frequency offset and continuously testing for a set duration, and obtaining the difference between the TIE curve and the adjusted frequency offset; if the difference is greater than a first set difference when the measured characteristic parameter is in the pull-out range, then the adjusted frequency offset is determined as the pull-out range; if the difference is less than a second set difference when the measured characteristic parameter is in the pull-in range, then the adjusted frequency offset is determined as the pull-in range.

[0014] Optionally, the synchronization device sends a feedback signal with an SSM quality level of the second level to the synchronization tester based on the tracking relationship between the local clock and the synchronization signal. This includes: when the synchronization tester and the synchronization device are synchronized via E1, or when the synchronization tester and the synchronization device are synchronized via Ethernet, and the ports for sending the synchronization signal and receiving the feedback signal on the synchronization tester are different ports, if the local clock tracks the synchronization signal normally, then a feedback signal with an SSM quality level of the first level is sent to the synchronization tester; if the local clock degrades in tracking the synchronization signal, then a feedback signal with an SSM quality level lower than the first level is sent to the synchronization tester; when the synchronization tester and the synchronization device are synchronized via Ethernet, and the ports for sending the synchronization signal and receiving the feedback signal on the synchronization tester are the same port, if the local clock tracks the synchronization signal normally, then a feedback signal with the lowest SSM quality level is sent to the synchronization tester; if the local clock degrades in tracking the synchronization signal, then a feedback signal with an SSM quality level lower than the first level is sent to the synchronization tester.

[0015] In some embodiments, the synchronization device traction characteristic testing apparatus based on SSM response rule assistance includes a sending module, an adjustment module, and a determining module. The sending module is used to send a synchronization signal with an SSM quality level of first level and a frequency offset of preset frequency offset to the synchronization device; causing the synchronization device to send a feedback signal with an SSM quality level of second level to the synchronization tester according to the tracking relationship between the local clock and the synchronization signal; the adjustment module is used to adjust the frequency offset of the synchronization signal according to the characteristic parameter under test, and continuously receive the feedback signal sent by the synchronization device; the determining module is used to stop adjusting the frequency offset of the synchronization signal when the SSM quality level of the feedback signal changes from the second level to the third level, and determine the characteristic parameter under test according to the adjusted frequency offset; wherein, one of the second level and the third level is the same as the first level or represents the lowest SSM quality, and the other represents an SSM quality lower than the SSM quality represented by the first level, but higher than the lowest SSM quality.

[0016] In some embodiments, the electronic device includes a processor and a memory storing program instructions, the processor being configured to execute, when executing the program instructions, the synchronous device traction characteristic testing method based on SSM response rule assistance provided in the foregoing embodiments.

[0017] In some embodiments, the storage medium stores program instructions that, when executed, perform the synchronous device traction characteristic testing method based on SSM response rules provided in the foregoing embodiments.

[0018] The method and apparatus for testing the traction characteristics of synchronous equipment based on SSM response rules provided in this application can achieve the following technical effects: Based on the SSM response rules, the tracking relationship between the local clock of the synchronization device and the synchronization signal can be automatically obtained. Based on this tracking relationship, the frequency deviation of the synchronization signal can be adjusted to meet the requirements of different measured characteristic parameters. The measured characteristic parameters can be obtained automatically, reducing manual operation and improving the convenience of testing.

[0019] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrative descriptions and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are considered similar elements, and wherein: Figure 1 This is a flowchart illustrating a method for testing the traction characteristics of a synchronization device based on SSM response rules, as provided in an embodiment of this application. Figure 2 This is a flowchart illustrating a method for testing the traction characteristics of a synchronization device based on SSM response rules, as provided in an embodiment of this application. Figure 3 This is a schematic diagram illustrating the connection relationship between a synchronization tester and a synchronization device provided in an embodiment of this application; Figure 4 This is a schematic diagram illustrating the connection relationship between a synchronization tester and a synchronization device provided in an embodiment of this application; Figure 5 This is a flowchart illustrating a method for testing the traction characteristics of a synchronization device based on SSM response rules, as provided in an embodiment of this application. Figure 6 This is a flowchart illustrating a method for testing the traction characteristics of a synchronization device based on SSM response rules, as provided in an embodiment of this application. Figure 7This is a schematic diagram of a synchronous equipment traction characteristic testing device based on SSM response rule assistance provided in an embodiment of this application; Figure 8 This is a schematic diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0021] To provide a more detailed understanding of the features and technical content of the embodiments of this application, the implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this application. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0022] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0023] Unless otherwise stated, the term "multiple" means two or more.

[0024] In this embodiment, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0025] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0026] Figure 1 This is a flowchart illustrating a method for testing the traction characteristics of a synchronization device based on SSM response rules, as provided in an embodiment of this application. This method for testing the traction characteristics of a synchronization device based on SSM response rules can be executed by a synchronization tester.

[0027] Combination Figure 1 As shown, the test method for traction characteristics of synchronization equipment based on SSM response rules includes: S101. Send a synchronization signal to the synchronization device with an SSM quality level of first level and a frequency deviation of the preset frequency deviation.

[0028] According to the order of SSM quality from high to low, the SSM quality levels are as follows: Level 1 Primary Reference Clock (PRC), Level 2 Synchronization Supply Unit Transit (SSUT), Level 3 Synchronization Supply Unit Local (SSUL), and Do Not Use (DNU).

[0029] The first level mentioned above can be PRC, which allows testing of synchronization devices configured with level 2 and level 3 node clocks; the first level mentioned above can also be SSUT, which allows testing of synchronization devices configured with level 3 node clocks.

[0030] In this embodiment of the application, only the first level of PRC is used as an example for illustrative purposes, and does not constitute a specific limitation on the first level.

[0031] The above steps enable the synchronization device to send a feedback signal with an SSM quality level of level 2 to the synchronization tester based on the tracking relationship between the local clock and the synchronization signal.

[0032] For example, if the local clock of the local device can track the synchronization signal normally, the second level is the same as the first level, or the second level represents the lowest quality SSM level; if the original tracking clock link signal of the local device deteriorates and there is no backup clock link, the SSM quality represented by the second level is lower than the SSM quality represented by the first level, but higher than the lowest SSM quality.

[0033] S102. Adjust the frequency offset of the synchronization signal according to the measured characteristic parameters, and continuously receive the feedback signal sent by the synchronization device.

[0034] The frequency deviation of the synchronization signal can be adjusted step by step. A smaller frequency modulation step size results in higher test accuracy but a longer test time; conversely, a larger step size results in shorter test time but lower test accuracy. Those skilled in the art can set a suitable frequency modulation step size based on the capabilities of the synchronization tester and the test requirements; these details will not be elaborated here. For example, a frequency modulation step size of 1 ppb is possible.

[0035] The measured characteristic parameters include the pull-in range, pull-out range, and hold-in range. The pull-in range includes the forward pull-in range and the reverse pull-in range, the pull-out range includes the forward pull-out range and the reverse pull-out range, and the hold-in range includes the forward hold-in range and the reverse hold-in range.

[0036] Optionally, adjusting the frequency offset of the synchronization signal according to the measured characteristic parameter includes: increasing the frequency offset of the synchronization signal when the measured characteristic parameter is in the positive pull-out range; decreasing the frequency offset of the synchronization signal when the measured characteristic parameter is in the positive pull-in range; decreasing the frequency offset of the synchronization signal when the measured characteristic parameter is in the reverse pull-out range; and increasing the frequency offset of the synchronization signal when the measured characteristic parameter is in the reverse pull-in range.

[0037] S103. When the SSM quality level of the feedback signal changes from level 2 to level 3, stop adjusting the frequency offset of the synchronization signal and determine the measured characteristic parameter based on the adjusted frequency offset.

[0038] Among them, one of the second and third levels is the same as the first level or represents the lowest SSM quality, while the other represents an SSM quality that is lower than the SSM quality represented by the first level but higher than the lowest SSM quality.

[0039] For example, when the measured characteristic parameter is within the pull-in range, the second level is the same as the first level or represents the lowest SSM quality, and the third level represents an SSM quality lower than the SSM quality represented by the first level, but higher than the lowest SSM quality; when the measured characteristic parameter is within the pull-out range, the third level is the same as the first level or represents the lowest SSM quality, and the second level represents an SSM quality lower than the SSM quality represented by the first level, but higher than the lowest SSM quality.

[0040] The adjusted frequency offset can be determined as the measured characteristic parameter.

[0041] Based on the SSM response rules, the tracking relationship between the local clock of the synchronization device and the synchronization signal can be automatically obtained. Based on this tracking relationship, the frequency deviation of the synchronization signal can be adjusted to meet the requirements of different measured characteristic parameters. The measured characteristic parameters can be obtained automatically, reducing manual operation and improving the convenience of testing.

[0042] Furthermore, if the SSM response rules of the synchronization device have been verified, the adjusted frequency offset can be determined as the measured characteristic parameter.

[0043] If the SSM response rules of the synchronization device are not verified, the measured characteristic parameter is determined based on the adjusted frequency offset. This may include: recording the Time Interval Error (TIE) curve while stopping the adjustment of the synchronization signal's frequency offset and continuously testing for a set duration, and obtaining the difference between the TIE curve and the adjusted frequency offset; if the difference is greater than a first set difference when the measured characteristic parameter is in the pull-out range, the adjusted frequency offset is determined as the pull-out range; if the difference is less than a second set difference when the measured characteristic parameter is in the pull-in range, the adjusted frequency offset is determined as the pull-in range; the set duration can be 1000s. Those skilled in the art can determine the specific values ​​of the first and second set differences based on the verification method of the SSM response rules, which will not be elaborated here.

[0044] In this way, more accurate measured characteristic parameters can be determined.

[0045] The timing for adjusting the frequency offset of the synchronization signal is explained below.

[0046] First, let's explain the timing of the initial adjustment of the synchronization signal's frequency offset. After sending the synchronization signal to the synchronization device for the first time, the frequency offset of the synchronization signal is adjusted after a delay of the first duration. This first duration corresponds to the clock inertia of the synchronization device. The stronger the clock inertia of the synchronization device, the longer the first duration; the weaker the clock inertia, the shorter the first duration. This is beneficial for obtaining a more accurate feedback signal for the SSM quality level. In some specific applications, the first duration can be 2 hours.

[0047] The timing of adjusting the frequency offset of the synchronization signal before the first adjustment is further explained. Adjusting the frequency offset of the synchronization signal and continuously receiving feedback signals from the synchronization device can include: continuously receiving feedback signals from the synchronization device for a second duration after adjusting the frequency offset; if the SSM quality level of the feedback signal remains at level two, then the frequency offset of the synchronization signal continues to be adjusted; wherein, the second duration corresponds to the clock inertia of the synchronization device and the response delay of the SSM quality information. The response delay of the transmission device is in the millisecond to second range, while the response time of the clock device may be tens of seconds. Setting the second duration in this way is beneficial for obtaining a more accurate feedback signal of the SSM quality level. In some specific applications, the second duration can be 1000 seconds.

[0048] Figure 2 This is a flowchart illustrating a method for testing the traction characteristics of a synchronization device based on SSM response rules, as provided in an embodiment of this application.

[0049] Combination Figure 2 As shown, the test method for traction characteristics of synchronous equipment based on SSM response rules includes: S201. Send a synchronization signal to the synchronization device with an SSM quality level of first grade and a frequency deviation of the preset frequency deviation.

[0050] S202, delay for the first duration, adjust the frequency offset of the synchronization signal for the first time according to the measured characteristic parameter, and continuously receive the feedback signal sent by the synchronization device.

[0051] The first duration corresponds to the clock inertia of the synchronization device.

[0052] S203. During the second time period after adjusting the frequency offset of the synchronization signal, continuously receive the feedback signal sent by the synchronization device; if the SSM quality level of the feedback signal remains at the second level, continue to adjust the frequency offset of the synchronization signal.

[0053] The second duration corresponds to the clock inertia of the synchronization device and the response delay of the SSM quality information.

[0054] S204. When the SSM quality level of the feedback signal changes from level 2 to level 3, stop adjusting the frequency offset of the synchronization signal and determine the measured characteristic parameter based on the adjusted frequency offset.

[0055] In terms of hardware, the synchronization tester and synchronization device can be synchronized via E1, such as... Figure 3 As shown, the synchronization tester sends a synchronization signal with an SSM quality level of PRC to the synchronization device via synchronization port 1. After the synchronization device receives the synchronization signal sent by the synchronization tester from the port, if the local clock can track the synchronization signal normally, it forwards the PRC to other ports. The synchronization tester obtains feedback signals with an SSM quality level of PRC from other ports through port 2. If the local clock of the synchronization device degrades in tracking the synchronization signal, the synchronization device forwards the SSM quality level corresponding to the clock configuration to other ports. The synchronization tester obtains feedback signals with an SSM quality level corresponding to the clock configuration from other ports through port 2.

[0056] The synchronization tester and synchronization device can be synchronized via Ethernet, such as... Figure 4 As shown, the synchronization tester's synchronization port 1 sends a synchronization signal with an SSM quality level of PRC to the slave port of the synchronization device. The synchronization device then sends a feedback signal to port 1 of the synchronization tester through its slave port. In other words, the port on which the synchronization tester sends the synchronization signal and receives the feedback signal is the same. In this case, after receiving the synchronization signal from the synchronization tester through its slave port, if the local clock can track the synchronization signal correctly, the synchronization device sends a feedback signal with a quality level of DNU from its slave port to port 1.

[0057] Refer again Figure 4The synchronization tester's synchronization port 1 sends a synchronization signal with an SSM quality level of PRC to the slave port of the synchronization device. The synchronization device sends a feedback signal to the synchronization tester's port 2 through other ports. That is, the ports for sending the synchronization signal and receiving the feedback signal are different ports. In this case, after the synchronization device receives the synchronization signal sent by the synchronization tester through the slave port, if the local clock can track the synchronization signal normally, it forwards the PRC to other ports. The synchronization tester obtains the feedback signal with an SSM quality level of PRC from other ports through port 2. If the synchronization device's local clock tracks the synchronization signal poorly, the synchronization device forwards the SSM quality level corresponding to the clock configuration to other ports. The synchronization tester obtains the feedback signal with an SSM quality level corresponding to the clock configuration from other ports through port 2.

[0058] Furthermore, based on the tracking relationship between the local clock and the synchronization signal, the synchronization device sends a feedback signal with an SSM quality level of level two to the synchronization tester. This includes: when the synchronization tester and the synchronization device are synchronized via E1, if the local clock tracks the synchronization signal normally, a feedback signal with an SSM quality level of level one is sent to the synchronization tester; if the local clock tracks the synchronization signal poorly, a feedback signal with an SSM quality level lower than level one is sent to the synchronization tester. When the synchronization tester and the synchronization device are synchronized via Ethernet, if the local clock tracks the synchronization signal normally, it sends a feedback signal with the lowest SSM quality level to the synchronization tester; if the local clock tracks the synchronization signal poorly, it sends a feedback signal with an SSM quality lower than the first level to the synchronization tester.

[0059] Figure 5 This is a flowchart illustrating a synchronous device traction characteristic testing method based on SSM response rule assistance provided in this application embodiment, with the tested characteristic parameters being the positive traction range and the positive traction in range as examples for illustrative purposes.

[0060] Combination Figure 5 As shown, the test method for traction characteristics of synchronization equipment based on SSM response rules includes: S501, The synchronization tester sends a synchronization signal with an SSM quality level of PRC to the synchronization equipment; S502, the preset frequency offset of the synchronization signal P = 0; S503, Waiting for the first duration; S504, P=P+P0, TIME=0; Where P0 is the frequency modulation step size; TIME is the timer; S505, the synchronization tester obtains feedback signals from the synchronization device, and the timer keeps time; S506. Determine whether the SSM quality level of the feedback signal is PRC; if yes, proceed to S507; otherwise, proceed to S508. S507. Determine if the timer duration is greater than the second duration; if yes, execute S504; otherwise, execute S505. S508. Define P as the positive traction range; The positive pull-out range here can also be regarded as the positive hold-in range; S509, Waiting for the first duration; S510, P=P-P0, TIME=0; S511, The synchronization tester receives feedback signals from the synchronization device, and the timer starts counting; S512. Determine whether the SSM quality level of the feedback signal is PRC; if not, proceed to S513; if yes, proceed to S514. S513. Determine if the timer duration is greater than the second duration; if yes, execute S510; otherwise, execute S511. S514. Define P as the positive traction range.

[0061] Figure 6 This is a flowchart illustrating a synchronous device traction characteristic testing method based on SSM response rules provided in this application embodiment, with the tested characteristic parameters being the reverse traction range and the reverse traction in range as examples for illustrative purposes.

[0062] Combination Figure 6 As shown, the test method for traction characteristics of synchronization equipment based on SSM response rules includes: S601, The synchronization tester sends a synchronization signal with an SSM quality level of PRC to the synchronization device; S602, the preset frequency offset of the synchronization signal P = 0; S603, Waiting for the first duration; S604, P=P-P0, TIME=0; Where P0 is the frequency modulation step size; TIME is the timer; S605, the synchronization tester obtains feedback signals from the synchronization device, and the timer keeps time; S606. Determine whether the SSM quality level of the feedback signal is PRC; if yes, proceed to S607; otherwise, proceed to S608. S607. Determine if the timer duration is greater than the second duration; if yes, execute S604; otherwise, execute S605. S608. Define P as the reverse traction range; The reverse pull-out range here can also be regarded as the reverse hold-in range; S609, Waiting for the first duration; S610, P=P+P0, TIME=0; S611, The synchronization tester receives feedback signals from the synchronization device, and the timer starts timing; S612. Determine whether the SSM quality level of the feedback signal is PRC; if not, proceed to S613; if yes, proceed to S614. S613. Determine if the timer duration is greater than the second duration; if yes, execute S610; otherwise, execute S611. S614. Define P as the reverse traction range.

[0063] Figure 7 This is a schematic diagram of a synchronous equipment traction characteristic testing device based on SSM response rule assistance provided in an embodiment of this application.

[0064] Combination Figure 7 As shown, the traction characteristic testing device for synchronization equipment based on SSM response rule assistance includes a sending module 71, an adjustment module 72, and a determining module 73. The sending module 71 is used to send a synchronization signal with an SSM quality level of first level and a frequency deviation of preset frequency deviation to the synchronization equipment; the synchronization equipment sends a feedback signal with an SSM quality level of second level to the synchronization tester according to the tracking relationship between the local clock and the synchronization signal; the adjustment module 72 is used to adjust the frequency deviation of the synchronization signal according to the characteristic parameter under test, and continuously receive the feedback signal sent by the synchronization equipment; the determining module 73 is used to stop adjusting the frequency deviation of the synchronization signal when the SSM quality level of the feedback signal changes from the second level to the third level, and determine the characteristic parameter under test according to the adjusted frequency deviation; wherein, one of the second level and the third level is the same as the first level or represents the lowest SSM quality, and the other represents an SSM quality lower than the SSM quality represented by the first level, but higher than the lowest SSM quality.

[0065] Optionally, after sending the synchronization signal to the synchronization device for the first time, the frequency offset of the synchronization signal is adjusted after a first delay; wherein the first delay corresponds to the clock inertia of the synchronization device.

[0066] Optionally, the adjustment module 72 includes a receiving unit and an adjustment unit; the receiving unit is used to continuously receive the feedback signal sent by the synchronization device for a second duration after adjusting the frequency offset of the synchronization signal; the adjustment unit is used to continue adjusting the frequency offset of the synchronization signal if the SSM quality level of the feedback signal remains at the second level; wherein, the second duration corresponds to the clock inertia of the synchronization device and the response delay of the SSM quality information.

[0067] Optionally, the frequency offset of the synchronization signal can be adjusted step by step.

[0068] Optionally, the adjustment module 72 includes a first boosting unit, a first debuffing unit, a second debuffing unit, and a second boosting unit; the first boosting unit is used to boost the frequency offset of the synchronization signal when the measured characteristic parameter is in the positive pull-out range; the first debuffing unit is used to debuff the frequency offset of the synchronization signal when the measured characteristic parameter is in the positive pull-in range; the second debuffing unit is used to debuff the frequency offset of the synchronization signal when the measured characteristic parameter is in the reverse pull-out range; and the second boosting unit is used to boost the frequency offset of the synchronization signal when the measured characteristic parameter is in the reverse pull-in range.

[0069] Optionally, the determining module 73 includes a recording unit, a first determining unit, and a second determining unit. The recording unit is used to record the time interval error (TIE) curve and obtain the difference between the TIE curve and the adjusted frequency deviation during the process of stopping the adjustment of the frequency deviation of the synchronization signal and continuously testing for a set duration. The first determining unit is used to determine the adjusted frequency deviation as the pull-out range if the difference is greater than a first set difference when the measured characteristic parameter is in the pull-in range. The second determining unit is used to determine the adjusted frequency deviation as the pull-in range if the difference is less than a second set difference when the measured characteristic parameter is in the pull-in range.

[0070] Optionally, the synchronization device sends a feedback signal with an SSM quality level of second grade to the synchronization tester based on the tracking relationship between the local clock and the synchronization signal, including: When the synchronization tester and the synchronization device are synchronized via E1, or when the synchronization tester and the synchronization device are synchronized via Ethernet, and the ports for sending the synchronization signal and receiving the feedback signal of the synchronization tester are different ports, if the local clock tracks the synchronization signal normally, it sends a feedback signal with an SSM quality level of first grade to the synchronization tester; if the local clock tracks the synchronization signal poorly, it sends a feedback signal with an SSM quality level lower than first grade to the synchronization tester. When the synchronization tester and the synchronization device are synchronized via Ethernet, and the ports for sending synchronization signals and receiving feedback signals of the synchronization tester are the same, if the local clock tracks the synchronization signal normally, it sends a feedback signal with the lowest SSM quality level to the synchronization tester; if the local clock tracks the synchronization signal poorly, it sends a feedback signal with an SSM quality lower than the first level to the synchronization tester.

[0071] In some embodiments, the synchronous device traction characteristic testing apparatus based on SSM response rule assistance includes a processor and a memory storing program instructions. The processor is configured to execute the synchronous device traction characteristic testing method based on SSM response rule assistance provided in the foregoing embodiments when executing the program instructions.

[0072] Figure 8This is a schematic diagram of an electronic device provided in an embodiment of this application. (In conjunction with...) Figure 8 As shown, the electronic device includes: The processor 81 and memory 82 may also include a communication interface 83 and a bus 84. The processor 81, communication interface 83, and memory 82 can communicate with each other via the bus 84. The communication interface 83 can be used for information transmission. The processor 81 can call logical instructions in the memory 82 to execute the synchronous device traction characteristic testing method based on SSM response rules provided in the foregoing embodiments.

[0073] Furthermore, the logic instructions in the aforementioned memory 82 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0074] The memory 82, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this application. The processor 81 executes functional applications and data processing by running the software programs, instructions, and modules stored in the memory 82, thereby implementing the methods in the above-described method embodiments.

[0075] The memory 82 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 82 may include high-speed random access memory and may also include non-volatile memory.

[0076] This application provides a computer-readable storage medium storing computer-executable instructions, which are configured to execute the synchronization device traction characteristic test method based on SSM response rule assistance provided in the foregoing embodiments.

[0077] This application provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions, which, when executed by a computer, cause the computer to perform the synchronous device traction characteristic testing method based on SSM response rule assistance provided in the aforementioned embodiment.

[0078] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0079] The technical solutions of this application embodiment can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods in this application embodiment. The aforementioned storage medium can be a non-transitory storage medium, including: USB flash drive, portable hard drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0080] The foregoing description and accompanying drawings fully illustrate embodiments of this application to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Additionally, when used in this application, the terms “comprise” and its variations “comprises” and / or “comprising” refer to the presence of 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 groups thereof. Unless otherwise specified, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes that element. In this document, each embodiment may focus on describing the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, then the relevant parts can be referred to the description of the method section.

[0081] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0082] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0083] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than those shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for testing the traction characteristics of synchronous equipment based on SSM response rules, characterized in that, include: Send a synchronization signal with SSM quality level 1 and frequency offset of preset frequency offset to the synchronization device; The synchronization device sends a feedback signal with an SSM quality level of level 2 to the synchronization tester based on the tracking relationship between the local clock and the synchronization signal. The frequency offset of the synchronization signal is adjusted according to the measured characteristic parameters, and the feedback signal sent by the synchronization device is continuously received. When the SSM quality level of the feedback signal changes from the second level to the third level, stop adjusting the frequency offset of the synchronization signal, and determine the measured characteristic parameter based on the adjusted frequency offset. In this context, one of the second and third levels is the same as the first level or represents the lowest SSM quality, while the other represents an SSM quality that is lower than the SSM quality represented by the first level but higher than the lowest SSM quality.

2. The method for testing the traction characteristics of synchronous equipment according to claim 1, characterized in that, After the synchronization signal is sent to the synchronization device for the first time, the frequency offset of the synchronization signal is adjusted after a first delay. The first duration corresponds to the clock inertia of the synchronization device.

3. The method for testing the traction characteristics of synchronous equipment according to claim 1, characterized in that, Adjusting the frequency offset of the synchronization signal and continuously receiving feedback signals sent by the synchronization device includes: During the second time period after adjusting the frequency offset of the synchronization signal, the feedback signal sent by the synchronization device is continuously received; If the SSM quality level of the feedback signal remains at the second level, then the frequency offset of the synchronization signal continues to be adjusted. The second duration corresponds to the clock inertia of the synchronization device and the response delay of the SSM quality information.

4. The method for testing the traction characteristics of synchronous equipment according to claim 1, characterized in that, Adjust the frequency offset of the synchronization signal in a single step.

5. The method for testing the traction characteristics of synchronous equipment according to any one of claims 1 to 4, characterized in that, Adjusting the frequency offset of the synchronization signal according to the measured characteristic parameters includes: When the measured characteristic parameter is in the positive pull-out range, increase the frequency deviation of the synchronization signal; When the measured characteristic parameter is within the positive pull-in range, reduce the frequency deviation of the synchronization signal; When the measured characteristic parameter is in the reverse pull-out range, reduce the frequency deviation of the synchronization signal; When the measured characteristic parameter is within the reverse pull-in range, the frequency offset of the synchronization signal is increased.

6. The method for testing the traction characteristics of synchronous equipment according to any one of claims 1 to 4, characterized in that, The measured characteristic parameters are determined based on the adjusted frequency offset, including: While stopping the adjustment of the frequency offset of the synchronization signal and continuously testing for a set duration, the time interval error (TIE) curve is recorded, and the difference between the TIE curve and the adjusted frequency offset is obtained. If the difference is greater than the first set difference when the measured characteristic parameter is within the pull-out range, then the adjusted frequency offset is determined as the pull-out range. If the difference is less than a second set difference when the measured characteristic parameter is within the traction range, then the adjusted frequency offset is determined as the traction range.

7. The method for testing the traction characteristics of synchronous equipment according to any one of claims 1 to 4, characterized in that, The synchronization device, based on the tracking relationship between the local clock and the synchronization signal, sends a feedback signal with an SSM quality level of second grade to the synchronization tester, including: When the synchronization tester and the synchronization device are synchronized via E1, or when the synchronization tester and the synchronization device are synchronized via Ethernet, and the ports for sending the synchronization signal and receiving the feedback signal are different ports, if the local clock tracks the synchronization signal normally, it sends a feedback signal with an SSM quality level of the first level to the synchronization tester; if the local clock tracks the degraded synchronization signal, it sends a feedback signal with an SSM quality level lower than the first level to the synchronization tester. When the synchronization tester and the synchronization device are synchronized via Ethernet, and the ports for sending the synchronization signal and receiving the feedback signal are the same, if the local clock tracks the synchronization signal normally, it sends a feedback signal with the lowest SSM quality level to the synchronization tester; if the local clock degrades in tracking the synchronization signal, it sends a feedback signal with an SSM quality lower than the first level to the synchronization tester.

8. A traction characteristic testing device for synchronous equipment based on SSM response rule assistance, characterized in that, include: The transmitting module is used to send a synchronization signal with an SSM quality level of first grade and a frequency offset of a preset frequency offset to the synchronization device; The synchronization device sends a feedback signal with an SSM quality level of level 2 to the synchronization tester based on the tracking relationship between the local clock and the synchronization signal. The adjustment module is used to adjust the frequency offset of the synchronization signal according to the measured characteristic parameters, and to continuously receive the feedback signal sent by the synchronization device. The determination module is used to stop adjusting the frequency offset of the synchronization signal when the SSM quality level of the feedback signal changes from the second level to the third level, and to determine the measured characteristic parameter based on the adjusted frequency offset. In this context, one of the second and third levels is the same as the first level or represents the lowest SSM quality, while the other represents an SSM quality that is lower than the SSM quality represented by the first level but higher than the lowest SSM quality.

9. An electronic device comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute, when executing the program instructions, the synchronous device traction characteristic test method based on SSM response rule assistance as described in any one of claims 1 to 7.

10. A storage medium storing program instructions, characterized in that, The program instructions execute the synchronous equipment traction characteristic test method based on SSM response rules as described in any one of claims 1 to 7 during runtime.

Images