Interlayer communication method, device and equipment based on time division switching voice communication system
By using a serial deserialization module for serial data transmission in a time-division switching voice communication system, the problem of numerous and complex connection lines between the control layer and the extension layer is solved, achieving the effects of simplified wiring and reduced data interference.
Patent Information
- Application Number
- CN202511537659.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-01-27
AI Technical Summary
In time-division switching voice communication systems, the number of connections between the control layer and the extension layer is large and complex, which can easily lead to data interference.
A serial deserialization module is used to transmit serial data between the control layer and the extension layer. Communication is carried out through a serial data link. The serial deserialization module converts the data into serial data and restores it to the original data at the receiving end.
The number of connection lines between the control layer and the expansion layer has been reduced, simplifying the wiring process and reducing data interference.
Smart Images
Figure CN121418399A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of communication technology, and in particular to an inter-layer communication method, apparatus, and device based on a time-division switching voice communication system. Background Technology
[0002] A time-division switching voice communication system typically consists of a control layer and multiple expansion layers, with the expansion layers connected and extended via expansion boards on the control layer. The control layer and expansion layers communicate using dedicated custom cables.
[0003] Currently, 16 sets of LVDS signals, or 32 data lines, are required between the control layer and each expansion layer. The more expansion layers there are, the more connection lines the control layer will have, which will lead to very complex wiring, dense wiring harnesses, and may also cause data interference. Summary of the Invention
[0004] This application provides an inter-layer communication method, apparatus, and device based on a time-division switching voice communication system, which reduces the number of connection lines between the control layer and the extension layer, simplifies wiring, and reduces data interference.
[0005] In a first aspect, embodiments of this application provide an inter-layer communication method based on a time-division switching voice communication system.
[0006] In a time-division switching voice communication system, the control layer expansion board is equipped with a first serial deserialization module, and the expansion layer driver board is equipped with a second serial deserialization module. The first and second serial deserialization modules communicate serially via a serial data link, using the following method:
[0007] When the control layer sends the first data to be sent to the extension layer through the serial data link, the first serial deserialization module converts the first data to be sent into the first serial data to be sent and sends it to the extension layer through the serial data link.
[0008] When the extension layer receives the first serial data to be transmitted through the serial data link, it uses the second serial deserialization module to restore the first serial data to be transmitted back to the first data to be transmitted.
[0009] When the extension layer sends the second data to be sent to the control layer through the serial data link, the second serial deserialization module converts the second data to be sent into the second serial data to be sent, and sends it to the extension layer through the serial data link.
[0010] When the control layer receives the second serial data to be transmitted through the serial data link, it uses the first serial deserialization module to restore the second serial data to be transmitted.
[0011] Secondly, embodiments of this application provide an inter-layer communication device based on a time-division switching voice communication system. In this system, an expansion board of the control layer is equipped with a first serial deserialization module, and a driver board of the expansion layer is equipped with a second serial deserialization module. The first and second serial deserialization modules communicate serially via a serial data link. The device includes:
[0012] The first conversion module is used to convert the first data to be transmitted into first serial data to be transmitted through the first serial deserialization module when the control layer sends the first data to be transmitted to the extension layer through the serial data link, and then send it to the extension layer through the serial data link.
[0013] The first restoration module is used to restore the first serial data to be transmitted back to the first data to be transmitted by the second serial deserialization module when the extension layer receives the first serial data to be transmitted through the serial data link.
[0014] The second conversion module is used to convert the second data to be transmitted into second serial data to be transmitted through the second serial deserialization module when the extension layer sends the second data to be transmitted to the control layer through the serial data link, and then send it to the extension layer through the serial data link.
[0015] The second restoration module is used to restore the second serial data to be transmitted back to the second serial data to be transmitted by the first serial deserialization module when the control layer receives the second serial data to be transmitted through the serial data link.
[0016] Thirdly, embodiments of this application provide an inter-layer communication device based on a time-division switching voice communication system. The inter-layer communication device is used to execute the inter-layer communication method based on a time-division switching voice communication system provided in any embodiment of this application, including:
[0017] The first serial deserialization module is installed on the expansion board of the control layer in a time-division switching voice communication system.
[0018] The second serial deserialization module is located on the driver board of the extension layer;
[0019] The first serial deserialization module and the second serial deserialization module communicate serially via a serial data link.
[0020] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the inter-layer communication method based on a time-division switching voice communication system as provided in any embodiment of this application.
[0021] The technical solution of this application embodiment is based on the control layer expansion board of the time-division switching voice communication system, which is equipped with a first serial deserialization module, and the driver board of the expansion layer is equipped with a second serial deserialization module. The first serial deserialization module and the second serial deserialization module communicate serially through a serial data link. When the control layer sends first data to be sent to the expansion layer through the serial data link, the first serial deserialization module converts the first data to be sent into first serial data to be sent and sends it to the expansion layer through the serial data link. When the expansion layer receives the first serial data to be sent through the serial data link, it uses the second serial deserialization module to restore the first serial data to be sent back to the first data to be sent. When the expansion layer sends second data to be sent to the control layer through the serial data link, the second serial deserialization module converts the second data to be sent into second serial data to be sent and sends it to the expansion layer through the serial data link. When the control layer receives the second serial data to be sent through the serial data link, it uses the first serial deserialization module to restore the second serial data to be sent back to the second data to be sent. Based on this, the control layer and the extension layer can use the first serial deserialization module and the second serial deserialization module to convert the existing parallel data transmission into serial data transmission. The number and complexity of the serial data link on which the serial data transmission relies are necessarily less than the number and complexity of the wiring required for the parallel data transmission, thereby reducing the number of connection lines between the control layer and the extension layer, simplifying wiring, and reducing data interference. Attached Figure Description
[0022] Figure 1 A flowchart illustrating the inter-layer communication method based on a time-division switching voice communication system provided in Embodiment 1 of this application;
[0023] Figure 2 A schematic diagram of the signal flow of a first serial-to-deserialization module provided for Embodiment 1 of this application;
[0024] Figure 3 A schematic diagram of the signal flow of the second serial-to-deserialization module provided in Embodiment 1 of this application;
[0025] Figure 4 This is a schematic diagram of the structure of an inter-layer communication device based on a time-division switching voice communication system, provided in Embodiment 3 of this application.
[0026] Figure 5 This is a schematic diagram of the structure of an inter-layer communication device based on a time-division switching voice communication system, provided in Embodiment 4 of this application. Detailed Implementation
[0027] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present application are shown in the drawings, not the entire structure.
[0028] Example 1
[0029] Figure 1 This is a flowchart illustrating the inter-layer communication method based on a time-division switching voice communication system provided in Embodiment 1 of this application. Figure 1 As shown, the inter-layer communication method based on a time-division switching voice communication system provided in this embodiment can be implemented based on the time-division switching voice communication system of this application. The control layer expansion board is equipped with a first serial deserialization module, and the expansion layer driver board is equipped with a second serial deserialization module. The first and second serial deserialization modules communicate serially through a serial data link, specifically including the following steps:
[0030] Step 101: When the control layer sends the first data to be sent to the extension layer through the serial data link, the first data to be sent is converted into first serial data to be sent through the first serial deserialization module, and then sent to the extension layer through the serial data link.
[0031] In this step, the first serial deserialization module can be set in the expansion board of the control layer. Specifically, the control layer expansion board can be reconfigured to convert the original parallel transmission clock, frame synchronization and data signals into serial transmission form, and replace the original devices used for TTL and LVDS level conversion with physical interface devices that support high-speed serial communication.
[0032] The first serial deserialization module may include a first serialization module and a first deserialization module; the first serialization module includes a first serializer, a first encoder, a first buffer, and a first framer; the first deserialization module includes a first framer, a first decoder, a second buffer, and a first deserializer.
[0033] When sending the first data to be sent, the first data to be sent in each frame on the data bus can be grouped by the first serializer, and the grouped data can be encoded by the first encoder to obtain the first encoded data. The first encoded data is buffered in the first buffer, and the first framer adds the first frame header and the first check bit to the first encoded data based on the clock of the control layer to obtain the first serial data to be sent.
[0034] In a specific example, you can refer to Figure 2 , Figure 2 This is a schematic diagram of the signal flow of a first serial deserialization module provided in Embodiment 1 of this application.
[0035] like Figure 2 As shown, the first serializer uses F16 and C16 to control the grouping of 4096 bits of 125-microsecond data per frame from the four 8M data buses. Then, the 4096-bit grouped data is encoded by the 8B / 10B first encoder, encoding each 8 bits of data into 10 bits.
[0036] It should be noted that 8b / 10b encoding is a DC balanced encoding scheme that encodes 8 bits of data into 10 bits of symbols, ensuring that the number of 0s and 1s is approximately equal during transmission, thereby reducing signal distortion and interference.
[0037] At the transmitting end, the 8b / 10b encoder maps the byte signals received from the upper-layer protocol into 10-bit codes, and serializes the encoded result using a parallel-to-serial converter. At the receiving end, the reverse operation is performed: serial-to-parallel conversion and 8b / 10b decoding to recover the original data. After encoding, a packet of data becomes 5120 bits.
[0038] Because the serial physical interface device is not synchronized with the PCM bus clock, the encoded data is stored in a FIFO (first buffer) for buffering.
[0039] To adapt to the protocol requirements of different physical interface devices and ensure correct data transmission, a frame header and data check bits are added to the encoded 5120-bit packet data by the first framer to form the data to be transmitted on the physical link.
[0040] The first framer, triggered by an F16, precisely sends 5120-bit coded data packets via a serial physical interface device every 125 milliseconds.
[0041] for Figure 2 The other parts will be explained in detail in subsequent steps.
[0042] Step 102: When the extension layer receives the first serial data to be transmitted through the serial data link, it uses the second serial deserialization module to restore the first serial data to be transmitted back to the first data to be transmitted.
[0043] In this step, the second serial deserialization module may include a second serial module and a second deserialization module;
[0044] The second serial module includes a second serializer, a second encoder, a third buffer, and a second framer; the second deserializer includes a second framer, a second decoder, a fourth buffer, a second deserializer, and a clock synchronizer.
[0045] Specifically, during the restoration process, the first serial data to be transmitted can be deframed by the second deframer to obtain the first frame header, the first parity bit, and the first encoded data; the first encoded data can be decoded by the second decoder and the decoded data can be buffered in the third buffer; the clock synchronizer can obtain a clock synchronized with the control layer using the first frame header; the second deserializer can use the obtained clock synchronized with the control layer to restore the data buffered in the third buffer to the first data to be transmitted.
[0046] In a specific example, you can refer to Figure 3 , Figure 3 This is a schematic diagram of the signal flow of the second serial deserialization module provided in Embodiment 1 of this application.
[0047] The system receives data streams from the control layer via a serial physical interface device, receiving 5120 bits of data every 125 microseconds. The data is then sent to a frame deframer for processing. Frame parsing and verification are then performed; specifically, the second frame deframer identifies and verifies the frame headers of the received data, extracting the 5120-bit encoded data packets.
[0048] The second frame deframer recovers the frame synchronization event signal based on the frame header information, which is used for subsequent clock recovery and data synchronization.
[0049] Clock recovery can be achieved using a clock synchronizer, which can include a frame synchronization extraction module and a phase-locked loop. The frame synchronization event signal is input to the frame synchronization extraction module, which generates a standard frame synchronization reference signal as the basis for system clock recovery.
[0050] The aforementioned frame synchronization reference signal serves as the input reference for the phase-locked loop (PLL). The PLL generates the F16 master clock signal and C16 frame control signal synchronized with the system, ensuring that the time reference between the extension layer and the control layer is consistent.
[0051] The 5120-bit encoded data output by the second frame decoder is restored to the original 4096-bit PCM data by the 8B / 10B second decoder to match the original system's data format.
[0052] The decoded 4096-bit block data is temporarily stored in the third buffer, awaiting subsequent deserialization processing.
[0053] Under the coordination of the F16 and C16 control signals, the second deserializer reads 4096 bits of data per frame period (125 microseconds) from the third buffer and distributes it to four 8M PCM data buses to complete the local recovery and output of the data.
[0054] The other parts of the second serial deserialization module will be explained in subsequent steps and will not be repeated here.
[0055] Step 103: When the extension layer sends the second data to be sent to the control layer through the serial data link, the second serial deserialization module converts the second data to be sent into the second serial data to be sent, and sends it to the extension layer through the serial data link.
[0056] In this step, the second serial module is equipped with a clock synchronizer, which is used to obtain a clock synchronized with the control layer based on the received first data to be transmitted.
[0057] Specifically, when converting the second data to be transmitted into the second serial data to be transmitted, the second serializer can group the second data to be transmitted in each frame on the data bus, and the second encoder can encode the grouped data to obtain the second encoded data. The second encoded data is buffered in the fourth buffer, and the second framer adds the second frame header and the second check bit to the second encoded data based on the obtained clock synchronized with the control layer to obtain the second serial data to be transmitted.
[0058] As mentioned above Figure 3 As shown, the second serializer uses control signals F16 and C16 (from...) Figure 3 Under the action of the phase-locked loop (PLL), data is collected from four 8M PCM data buses. Each frame has a period of 125 microseconds, and a total of 4096 bits of data are collected and grouped as needed.
[0059] The 4096-bit raw data is encoded using 8B / 10B encoding (implemented by a second encoder), that is, every 8 bits of data are encoded into 10-bit symbols, forming 5120-bit encoded data. This encoding method has DC balance characteristics, which can effectively suppress signal distortion and improve transmission stability.
[0060] Because the serial physical interface device and the PCM bus have clock asynchronous issues, the encoded data is temporarily stored in a FIFO (i.e., the fourth buffer) to avoid data loss, thereby achieving rate matching and timing synchronization.
[0061] In order to adapt to different types of serial physical interface protocols and improve data recognition and error correction capabilities, the system adds frame headers and check information to 5120-bit encoded data through a second framer to construct a standard data frame that can be transmitted on the physical link.
[0062] Precisely controlled by the F16 timing signal, a transmission operation is triggered every 125 milliseconds to send the encapsulated data frame to the control layer through a serial physical interface device.
[0063] Step 104: When the control layer receives the second serial data to be transmitted through the serial data link, it uses the first serial deserialization module to restore the second serial data to be transmitted.
[0064] In this step, the second serial data to be transmitted can be deframed by the first deframer to obtain the second frame header, the second parity bit and the second encoded data; the second encoded data can be decoded by the first decoder and the decoded data can be buffered in the second buffer; the first deserializer uses the clock of the control layer to restore the data buffered in the second buffer to the second data to be transmitted.
[0065] Still in the aforementioned Figure 2 For example, upon receiving data from a serial physical interface device, the first frame deframer performs frame header judgment and data verification, extracting 5120-bit encoded grouped data.
[0066] Then, the 4096-bit packet data for 125 milliseconds is extracted by the first 8B / 10B decoder. The packet data is then stored in the second buffer for buffering. Finally, controlled by F16 and C16, the first deserializer reads 4096-bit packet data for each frame for 125 microseconds from the buffer and converts it onto four 8M data buses.
[0067] In this embodiment, the expansion board of the control layer in the time-division switching voice communication system is equipped with a first serial deserialization module, and the driver board of the expansion layer is equipped with a second serial deserialization module. The first and second serial deserialization modules communicate serially via a serial data link. When the control layer sends first data to be transmitted to the expansion layer via the serial data link, the first serial deserialization module converts the first data to be transmitted into first serial data to be transmitted and sends it to the expansion layer via the serial data link. When the expansion layer receives the first serial data to be transmitted via the serial data link, it uses the second serial deserialization module to restore the first serial data to be transmitted back to the first data to be transmitted. When the expansion layer sends second data to be transmitted to the control layer via the serial data link, the second serial deserialization module converts the second data to be transmitted into second serial data to be transmitted and sends it to the expansion layer via the serial data link. When the control layer receives the second serial data to be transmitted via the serial data link, it uses the first serial deserialization module to restore the second serial data to be transmitted back to the second data to be transmitted. Based on this, the control layer and the extension layer can use the first serial deserialization module and the second serial deserialization module to convert the existing parallel data transmission into serial data transmission. The number and complexity of the serial data link on which the serial data transmission relies are necessarily less than the number and complexity of the wiring required for the parallel data transmission, thereby reducing the number of connection lines between the control layer and the extension layer, simplifying wiring, and reducing data interference.
[0068] Example 2
[0069] Figure 4This is a schematic diagram of an inter-layer communication device based on a time-division switching voice communication system, provided in Embodiment 3 of this application. The inter-layer communication device based on a time-division switching voice communication system provided in this embodiment can execute the inter-layer communication method based on a time-division switching voice communication system provided in any embodiment of this application, possessing the corresponding functional modules and beneficial effects of the method execution. This device can be implemented in software and / or hardware. In the time-division switching voice communication system, the expansion board of the control layer is equipped with a first serial deserialization module, and the driver board of the expansion layer is equipped with a second serial deserialization module. The first and second serial deserialization modules communicate serially through a serial data link, such as... Figure 4 As shown, the device includes:
[0070] The first conversion module 401 is used to convert the first data to be transmitted into first serial data to be transmitted through the first serial deserialization module when the control layer sends the first data to be transmitted to the extension layer through the serial data link, and then send it to the extension layer through the serial data link.
[0071] The first restoration module 402 is used to restore the first serial data to be transmitted back to the first data to be transmitted by the second serial deserialization module when the extension layer receives the first serial data to be transmitted through the serial data link.
[0072] The second conversion module 403 is used to convert the second data to be transmitted into second serial data to be transmitted through the second serial deserialization module when the extension layer sends the second data to be transmitted to the control layer through the serial data link, and then send it to the extension layer through the serial data link.
[0073] The second restoration module 404 is used to restore the second serial data to be transmitted back to the second serial data to be transmitted by the first serial deserialization module when the control layer receives the second serial data to be transmitted through the serial data link.
[0074] Example 4
[0075] Figure 5 This is a schematic diagram of the structure of an inter-layer communication device based on a time-division switching voice communication system, as shown in Embodiment 4 of this application. Figure 5 As shown, the inter-layer communication device based on the time-division switching voice communication system is used to execute the inter-layer communication method based on the time-division switching voice communication system provided in any embodiment of this application:
[0076] When the control layer sends the first data to be sent to the extension layer through the serial data link, the first serial deserialization module converts the first data to be sent into the first serial data to be sent and sends it to the extension layer through the serial data link.
[0077] When the extension layer receives the first serial data to be transmitted through the serial data link, it uses the second serial deserialization module to restore the first serial data to be transmitted back to the first data to be transmitted.
[0078] When the extension layer sends the second data to be sent to the control layer through the serial data link, the second serial deserialization module converts the second data to be sent into the second serial data to be sent, and sends it to the extension layer through the serial data link.
[0079] When the control layer receives the second serial data to be transmitted through the serial data link, it uses the first serial deserialization module to restore the second serial data to be transmitted.
[0080] The device includes: a first serial deserialization module 501 disposed on an expansion board of the control layer in a time-division switching voice communication system; and a second serial deserialization module 502 disposed on a driver board of the expansion layer.
[0081] The first serial deserialization module and the second serial deserialization module communicate serially through the serial data link 503.
[0082] Furthermore, the first serial deserialization module includes a first serialization module and a first deserialization module;
[0083] The first serial module includes a first serializer, a first encoder, a first buffer, and a first framer;
[0084] The first deserialization module includes a first frame deframer, a first decoder, a second buffer, and a first deserializer.
[0085] Furthermore, the second serial deserialization module includes a second serial module and a second deserialization module;
[0086] The second serial module includes a second serializer, a second encoder, a third buffer, and a second framer;
[0087] The second deserialization module includes a second frame deframer, a second decoder, a fourth buffer, a second deserializer, and a clock synchronizer.
[0088] Example 5
[0089] Embodiment 5 of this application also provides a storage medium containing computer-executable instructions. When executed by a computer processor, the computer-executable instructions are used to perform an inter-layer communication method based on a time-division switching voice communication system. The method includes:
[0090] When the control layer sends the first data to be sent to the extension layer through the serial data link, the first serial deserialization module converts the first data to be sent into the first serial data to be sent and sends it to the extension layer through the serial data link.
[0091] When the extension layer receives the first serial data to be transmitted through the serial data link, it uses the second serial deserialization module to restore the first serial data to be transmitted back to the first data to be transmitted.
[0092] When the extension layer sends the second data to be sent to the control layer through the serial data link, the second serial deserialization module converts the second data to be sent into the second serial data to be sent, and sends it to the extension layer through the serial data link.
[0093] When the control layer receives the second serial data to be transmitted through the serial data link, it uses the first serial deserialization module to restore the second serial data to be transmitted.
[0094] Of course, the computer-executable instructions provided in the embodiments of this application are not limited to the above-described method operations, but can also execute related operations in the inter-layer communication method based on the time-division switching voice communication system provided in any embodiment of this application.
[0095] Based on the above description of the implementation methods, those skilled in the art can clearly understand that this application can be implemented using software and necessary general-purpose hardware, and of course, it can also be implemented using hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of the various embodiments of this application.
[0096] It is worth noting that in the embodiments of the search device described above, the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of each functional unit are only for easy differentiation and are not used to limit the scope of protection of this application.
[0097] Note that the above description is merely a preferred embodiment and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of this application, and the scope of this application is determined by the scope of the appended claims.
Claims
1. An inter-layer communication method based on a time-division switching voice communication system, characterized in that, The expansion board of the control layer in the time-division switching voice communication system is equipped with a first serial deserialization module, and the driver board of the expansion layer is equipped with a second serial deserialization module. The first serial deserialization module and the second serial deserialization module communicate serially through a serial data link. The method includes: When the control layer sends the first data to be sent to the extension layer through the serial data link, the first data to be sent is converted into first serial data to be sent through the first serial deserialization module and then sent to the extension layer through the serial data link. When the extension layer receives the first serial data to be sent through the serial data link, it uses the second serial deserialization module to restore the first serial data to be sent back to the first data to be sent. When the extension layer sends the second data to be sent to the control layer through the serial data link, the second serial deserialization module converts the second data to be sent into second serial data to be sent, and sends it to the extension layer through the serial data link. When the control layer receives the second serial data to be transmitted through the serial data link, it uses the first serial deserialization module to restore the second serial data to be transmitted.
2. The method according to claim 1, characterized in that, The first serial deserialization module includes a first serial module, which includes a first serializer, a first encoder, a first buffer, and a first framer. The step of converting the first data to be transmitted into first serial data to be transmitted through the first serial deserialization module includes: The first serializer groups the first data to be transmitted in each frame on the data bus into groups, and the first encoder encodes the grouped data to obtain the first encoded data. The first encoded data is cached in the first buffer, and the first framer adds a first frame header and a first check bit to the first encoded data based on the clock of the control layer to obtain the first serial data to be transmitted.
3. The method according to claim 1, characterized in that, The first serial deserialization module includes a first deserialization module, which includes a first frame deserializer, a first decoder, a second buffer, and a first deserializer. The step of restoring the second serial data to be transmitted back to the second serial data using the first serial deserialization module includes: The first deframer deframes the second serial data to be transmitted to obtain the second frame header, the second check bit, and the second encoded data. The first decoder decodes the second encoded data and caches the decoded data in the second buffer. The first deserializer uses the clock of the control layer to restore the data buffered in the second buffer into the second data to be sent.
4. The method according to claim 1, characterized in that, The second serial deserialization module includes a second serial module and a second deserialization module. The second serial module includes a second serializer, a second encoder, a third buffer, and a second framer. The second serial module is equipped with a clock synchronizer, which is used to obtain a clock synchronized with the control layer based on the received first data to be transmitted. The step of converting the second data to be transmitted into second serial data to be transmitted through the second serial deserialization module includes: The second serializer groups the second data to be transmitted in each frame on the data bus into groups, and the second encoder encodes the grouped data to obtain the second encoded data. The second encoded data is buffered in the third buffer. The second framer adds a second frame header and a second check bit to the second encoded data based on the clock synchronized with the control layer to obtain the second serial data to be transmitted.
5. The method according to claim 1, characterized in that, The second deserialization module includes a second frame deframer, a second decoder, a fourth buffer, a second deserializer, and a clock synchronizer; The step of restoring the first serial data to be transmitted back to the first serial data to be transmitted using the second serial deserialization module includes: The first serial data to be transmitted is deframed by the second deframer to obtain the first frame header, the first check bit and the first encoded data. The first encoded data is decoded by the second decoder, and the decoded data is cached in the fourth buffer; The clock synchronizer is used to obtain a clock synchronized with the control layer using the first frame header; The second deserializer uses the obtained clock synchronized with the control layer to restore the data buffered in the fourth buffer to the first data to be sent.
6. An inter-layer communication device based on a time-division switching voice communication system, characterized in that, The expansion board of the control layer in the time-division switching voice communication system is equipped with a first serial deserialization module, and the driver board of the expansion layer is equipped with a second serial deserialization module. The first serial deserialization module and the second serial deserialization module communicate serially through a serial data link. The device includes: The first conversion module is used to convert the first data to be transmitted into first serial data to be transmitted through the first serial deserialization module when the control layer sends the first data to be transmitted to the extension layer through the serial data link, and then send it to the extension layer through the serial data link. The first restoration module is used to restore the first serial data to be sent back to the first serial data to be sent by the second serial deserialization module when the extension layer receives the first serial data to be sent through the serial data link. The second conversion module is used to convert the second data to be transmitted into second serial data to be transmitted through the second serial deserialization module when the extension layer sends the second data to be transmitted to the control layer through the serial data link, and then send it to the extension layer through the serial data link. The second restoration module is used to restore the second serial data to be transmitted back to the second serial data to be transmitted by the first serial deserialization module when the control layer receives the second serial data to be transmitted through the serial data link.
7. An inter-layer communication device based on a time-division switching voice communication system, characterized in that, Interlayer communication equipment is used to execute the interlayer communication method based on the time-division switching voice communication system as described in any one of claims 1-5, comprising: The first serial deserialization module is installed on the expansion board of the control layer in the time-division switching voice communication system. The second serial deserialization module is located on the driver board of the extension layer; The first serial deserialization module and the second serial deserialization module communicate serially via a serial data link.
8. The device according to claim 7, characterized in that, The first serial deserialization module includes a first serialization module and a first deserialization module; The first serial module includes a first serializer, a first encoder, a first buffer, and a first framer; The first deserialization module includes a first frame deserializer, a first decoder, a second buffer, and a first deserializer.
9. The device according to claim 7, characterized in that, The second serial deserialization module includes a second serial module and a second deserialization module; The second serial module includes a second serializer, a second encoder, a third buffer, and a second framer; The second deserialization module includes a second frame deframer, a second decoder, a fourth buffer, a second deserializer, and a clock synchronizer.
10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the inter-layer communication method of the time-division switching voice communication system as described in any one of claims 1-5.