WO2022227484A1

WO2022227484A1 - Data communication method and apparatus, computer device, and storage medium

Info

Publication number: WO2022227484A1
Application number: PCT/CN2021/129718
Authority: WO
Inventors: 陈璟
Original assignee: 深圳市广和通无线股份有限公司
Priority date: 2021-04-25
Filing date: 2021-11-10
Publication date: 2022-11-03
Also published as: CN113238982A

Abstract

The present application relates to a data communication method and apparatus, a computer device, and a storage medium. The method comprises: performing control information interaction with a host by means of a control path divided from a bus interface, and establishing a plurality of PDN data paths; by means of a data transmission path divided from the bus interface, receiving a data packet transmitted by the host multiplexing the data transmission path; parsing a multiplexing protocol message header in the data packet to obtain a path identifier; and sending PDN data in the data packet by means of the PDN data path corresponding to the path identifier in the plurality of PDN data paths.

Description

Data communication method, apparatus, computer equipment and storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese application filed on April 25, 2021, entitled "Data Communication Method, Apparatus, Computer Equipment, and Storage Medium" and No. 2021104483631, the disclosure of which is fully incorporated into this application by reference .

technical field

The present application relates to the field of communication technologies, and in particular, to a data communication method, apparatus, computer equipment and storage medium.

Background technique

With the development of communication technology, PDN (Public Data Network) has also been widely used. PDN is a wide area network established by telecom operators, which can provide services and technologies for accessing the wide area network, and provide users with high-quality data transmission services. High-speed transmission of communication data can be achieved through PDN. For example, high-speed data transmission between the communication module and the terminal connected to it can be implemented, or high-speed data transmission between the host and the terminal can be implemented using the communication module as an intermediate transmission medium.

SUMMARY OF THE INVENTION

The present application provides a data communication method, apparatus, computer equipment and storage medium capable of improving data communication efficiency.

A data communication method, the method comprising: interacting control information with a host through a control path divided from a bus interface to establish multiple PDN data paths; The host multiplexes the data packets transmitted by the data transmission path; parses the multiplexing protocol message header in the data packet to obtain the path identifier; passes the PDN data corresponding to the path identifier in the multiple PDN data paths channel, and send the PDN data in the data packet.

In one embodiment, the parsing the multiplexing protocol message header in the data packet to obtain the path identifier includes: parsing the multiplexing protocol message in the data packet according to a preset multiplexing protocol message header format The data type flag bit of the header; when the data type flag bit is a preset value indicating that the PDN data is carried, according to the multiplexing protocol message header format, extract from the path identifier filling part of the multiplexing protocol message header. Path identification.

In one embodiment, the method further includes: reading the data capacity filled in the data capacity filling part of the multiplexing protocol message header according to the multiplexing protocol message header format; the data capacity is the The host is dynamically determined based on network quality parameters; according to the data capacity, the PDN data in the data packet is verified; when the verification is passed, the execution of the multi-channel PDN data path corresponding to the path identifier is executed. the PDN data path, and send the PDN data in the data packet.

In one embodiment, the method further includes: receiving PDN response data through the multiplex PDN data paths; acquiring a path identifier of the PDN data path through which the PDN response data passes; and according to a preset multiplexing protocol message header format, construct the response multiplexing protocol message header; the data type flag position of the response multiplexing protocol message header is a preset value indicating that the PDN data is carried, and the path identifier filling part of the response multiplexing protocol message header is filled with the obtained channel identification; generating a response data packet according to the PDN response data and the response multiplexing protocol message header; sending the response data packet through the data transmission channel.

In one embodiment, the data capacity filling part of the response multiplexing protocol message header is filled with the response data capacity determined by the communication module according to the current network quality parameter; the response data according to the PDN response data and the Generating a response data packet in response to the multiplexing protocol message header includes: based on the PDN response data, re-determining the packet data to be sent according to the response data capacity; assembling the response multiplexing protocol message header and the packet data to be sent to obtain a response data pack.

A data communication device, the device comprises: a multi-channel PDN data path establishment module for interacting control information with a host through a control path divided from a bus interface to establish a multi-channel PDN data path; a data packet receiving module , for receiving the data packets transmitted by the host multiplexing the data transmission path through the data transmission path divided from the bus interface; the path identification obtaining module is used for parsing the multiplexing protocol message in the data packet header, to obtain a path identifier; a PDN data sending module, configured to send the PDN data in the data packet through the PDN data path corresponding to the path identifier in the multi-path PDN data paths.

In one embodiment, the path identification obtaining module includes: a data type flag bit parsing unit, configured to parse the data type flag bit of the multiplexing protocol message header in the data packet according to a preset multiplexing protocol message header format The path identification extraction unit is used to extract the path identification filling part from the path identification filling part of the multiplexing protocol message header according to the multiplexing protocol message header format when the data type flag bit is a preset value representing carrying PDN data. Exit path identification.

In one embodiment, the apparatus includes: a data capacity reading unit, configured to read the data capacity filled by the data capacity filling part of the multiplexing protocol message header according to the multiplexing protocol message header format; The data capacity is dynamically determined by the host based on the network quality parameter; the PDN data verification unit is used to verify the PDN data in the data packet according to the data capacity; the PDN data sending module is used to be a school When the verification is passed, the passing of the PDN data path corresponding to the path identifier in the multi-path PDN data paths is performed, and the PDN data in the data packet is sent.

In one of the embodiments, the apparatus includes: a PDN response data receiving unit, configured to receive PDN response data through the multi-channel PDN data paths; a channel identifier obtaining unit, configured to obtain the PDN data passed by the PDN response data The path identifier of the path; the response multiplexing protocol message header construction unit is used to construct the response multiplexing protocol message header according to the preset multiplexing protocol message header format; the data type flag position of the response multiplexing protocol message header is indicated Carrying the preset value of the PDN data, the path identifier filling part of the response multiplexing protocol message header is filled with the acquired path identifier; the response data packet generating unit is used for according to the PDN response data and the response multiplexing protocol message. The header generates a response data packet; the response data packet sending module is configured to send the response data packet through the data transmission path.

In one embodiment, the response data packet generating unit is configured to re-determine the packet data to be sent according to the response data capacity based on the PDN response data; assemble the response multiplexing protocol message header and the packet data to be sent to obtain response packet.

A computer device, comprising a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program: interacting with a host computer for control information through a control path divided from a bus interface , establish a multiplex PDN data path; receive the data packet transmitted by the host multiplexing the data transmission path through the data transmission path divided from the bus interface; parse the multiplexing protocol message header in the data packet, Obtain a path identifier; and send the PDN data in the data packet through the PDN data path corresponding to the path identifier in the multi-path PDN data paths.

A computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented: through a control path divided from a bus interface, the interaction of control information with a host is carried out, and a multi-path PDN is established. data path; receive the data packet transmitted by the host multiplexing the data transmission path through the data transmission path divided from the bus interface; parse the multiplexing protocol message header in the data packet to obtain the path identifier; The PDN data channel corresponding to the channel identifier in the multi-channel PDN data channel sends the PDN data in the data packet.

The above-mentioned data communication method, device, computer equipment and storage medium, through the control path divided from the bus interface, interact with the host for control information, and establish a multi-channel PDN data path; through the data transmission path divided from the bus interface, receive The host multiplexes the data packets transmitted by the data transmission channel; parses the multiplexing protocol message header in the data packet to obtain the channel identifier; sends the PDN data in the data packet through the PDN data channel corresponding to the channel identifier in the multi-channel PDN data channel. The control path and the data transmission path can be divided separately from the bus interface, so that the control information and the data transmission are separated without affecting each other, so as to ensure the transmission efficiency of the data transmission process. At the same time, the corresponding PDN data path can be identified through the path identifier, the PDN data in the data packet can be sent, and the data path to be sent can be quickly determined, thereby improving the efficiency of data communication.

Description of drawings

Fig. 1 is the application environment diagram of the data communication method in one embodiment;

2 is a schematic flowchart of a data communication method in one embodiment;

3 is a schematic flowchart of steps of parsing a multiplexing protocol message header in a data packet to obtain a path identifier in one embodiment;

4 is a schematic flowchart of a data communication method in another embodiment;

5 is a schematic flowchart of a data communication method in another embodiment;

6 is a schematic flowchart of a data communication method in another embodiment;

7 is a schematic diagram of multiplexing protocol message headers in a data communication process in one embodiment;

8 is a schematic diagram of a data packet in a data communication process in one embodiment;

9 is a structural block diagram of a data communication apparatus in one embodiment;

Figure 10 is a diagram of the internal structure of a computer device in one embodiment.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

The data communication method provided by the present application can be applied to the application environment shown in FIG. 1 , and is specifically applied to a data communication system. The data communication system includes a host 102 and a communication module 104, wherein the host 102 communicates with the communication module 104 through a bus. The communication module 104 executes a data communication method. Specifically, the communication module 104 exchanges control information with the host 102 through the control path divided from the bus interface, and establishes multiple PDN data paths; The transmission path receives the data packets transmitted by the multiplexed data transmission path of the host 102; and parses the multiplexing protocol message header in the data packet through the communication module 104 to obtain the path identification; through the PDN data corresponding to the path identification in the multiple PDN data paths The channel sends the PDN data in the data packet. Wherein, the host 102 can be, but is not limited to, various computer systems, personal computers, notebook computers, smart phones, tablet computers and portable wearable devices; the communication module 104 can be a module independent of the terminal for data communication; It can be a module integrated in the terminal for data communication. It is implemented by a server or a server cluster composed of multiple servers.

In one embodiment, as shown in FIG. 2, a data communication method is provided, and the method is applied to the communication module in FIG. 1 as an example for description, including the following steps:

In step 202, multiple PDN data paths are established by exchanging control information with the host through the control paths divided from the bus interface.

The bus interface refers to an interface that can provide connections for bus access. For example, a PCIe (peripheral component interconnect express) interface, an I ² C (I-squared-C) interface, or a USB (Universal Serial Bus) interface in the communication module. The control path refers to the path through which the host sends control information to the communication module. Control information refers to the information sent by the host to the communication module to control the communication module to perform an operation. A PDN data path refers to a path capable of transmitting PDN data.

Specifically, before the host transmits the multi-channel PDN data through the communication module, the host needs to transmit the local control information to the communication module, so that the communication module can transmit the multi-channel PDN data through the control information. The communication module can divide the control channel by using the preset virtual interface connected with the host by the bus interface of the communication module.

In one embodiment, the PCIe bus connected by the PCIe interface of the communication module is used to divide the control path through software, and the relevant configuration items under the /dev/mhi_ctrl interface on the host side are used for configuration, and the control path divided by the bus interface is divided by The control path realizes the exchange of control information.

Step 204: Receive the data packets transmitted by the host multiplexed data transmission channel through the data transmission channel divided from the bus interface.

Among them, the data transmission path refers to the path used for transmitting data. Multiplexing refers to the reuse of transmission paths for data packet transmission. A data packet refers to the data transmitted each time during data transmission.

Specifically, the host transmits the data to be transmitted to the terminal from the local end through the communication module, and can use the data transmission path divided by the bus interface connected between the host and the communication module. Through this data transmission path, the host can continuously transmit the data packets of the data to be transmitted. is transmitted from the data transmission path to the communication module. Correspondingly, the communication module can receive the data packet sent by the host through the data transmission path. The communication module can use the communication module bus interface and the preset virtual interface of the host to divide the data transmission channel. The data packets sent by the host are received through the data receiving unit at the local end of the communication module.

In one embodiment, the communication module uses the PCIe bus connected by the PCIe interface of the local end, and the software divides the control path, uses the relevant configuration items under the host side /pcie_mhio interface for configuration, and divides the bus interface into a data transmission path. The transmission path receives packets sent by the host.

In one embodiment, the communication module adjusts the relevant transmission parameters between the host and the communication module, such as baud rate, frequency, or MTU (Maximum Transmission Unit), through the data transmission path divided from the bus interface. The data packets transmitted by the host through the data transmission channel are received by means of synchronous time division multiplexing or asynchronous full multiplexing.

Step 206: Parse the multiplexing protocol message header in the data packet to obtain the path identifier.

Wherein, the multiplexing protocol message header refers to the header information of the data packet, which can determine information such as the type or size of the data packet. The path identifier refers to the symbolic information that can uniquely determine the path. For example, a pathway is identified as the ID (Identity document) of the pathway.

Specifically, the communication module can find the padding value in the preset field by analyzing the position of the preset field in the header of the multiplexing protocol message in the data packet, and obtain the path identifier through the padding value. For example, the path identification is obtained using the padding value at the second field of the multiplexing protocol message header.

In one embodiment, the communication module analyzes the multiplexing protocol message header of the received data packet by using a data packet analysis tool to obtain the path identifier. For example, the second field of the multiplexing protocol message header of the received data packet may be parsed by a packet capture tool, and the value obtained by the analysis is the obtained path identifier.

Step 208: Send the PDN data in the data packet through the PDN data channel corresponding to the channel identifier in the multi-channel PDN data channel.

Specifically, each PDN data path has a corresponding path identifier. After the communication module obtains the data packet and obtains the path identifier by parsing the data packet, it will trigger the sending operation of the data packet, and send the data packet based on the sending operation. PDN data.

In one embodiment, after the message header is parsed on the communication module, the data packet with the protocol header removed is sent to the PDN data path corresponding to the path identifier, that is, when the communication module sends the data packet, only the original data in the data packet is sent. data, so that the upper-layer application program that receives the data packet sent by the communication module can use the received data packet accurately and efficiently.

In the above data communication method, through the control path divided from the bus interface, the control information is exchanged with the host to establish multiple PDN data paths; through the data transmission path divided from the bus interface, the host receives the multiplexed data transmission path transmission. parse the multiplexing protocol message header in the data packet to obtain the path identifier; send the PDN data in the data packet through the PDN data path corresponding to the path identifier in the multi-path PDN data path. The control path and the data transmission path can be separately divided from the bus interface, so that the control information and the data transmission are separated without affecting each other, and the transmission efficiency of the data transmission process is guaranteed. At the same time, the corresponding PDN data path can be identified through the path identifier, the PDN data in the data packet can be sent, and the data path to be sent can be quickly determined, thereby improving the efficiency of data communication.

In one embodiment, as shown in FIG. 3 , parsing the multiplexing protocol message header in the data packet to obtain the path identifier includes:

Step 302: Parse the data type flag bit of the multiplexing protocol message header in the data packet according to the preset multiplexing protocol message header format.

The multiplexing protocol message header format refers to the field composition format of the multiplexing protocol message header. The data type flag bit refers to the field position that can indicate the data type of the data packet. Wherein, the field refers to the byte or byte range in the protocol message header, and one field includes eight bytes. For example, the first byte or the byte range from the first byte to the eighth byte in the protocol message header.

Specifically, the multiplexing protocol message header in the sent data packet has a preset multiplexing protocol message header format, and the corresponding data type flag bit can be parsed through the above-mentioned multiplexing protocol message header format.

In one embodiment, when the host sends a data packet, the first byte of the multiplexing protocol message header in the data packet is preset as the data type flag bit of the multiplexing protocol message header; when the communication module receives the data packet When , the first byte of the multiplexing protocol message header in the data packet is parsed, and the data type flag bit corresponding to the data packet is obtained.

Step 304, when the data type flag bit is a preset value indicating that the PDN data is carried, extract the path identifier from the path identifier filling part of the multiplexing protocol message header according to the multiplexing protocol message header format.

Wherein, the channel identifier filling part refers to the byte bits or the byte bit range capable of filling the channel identifier in the multiplexing protocol message header.

Specifically, after the communication module parses the data type flag bit of the multiplexing protocol message header in the data packet according to the preset multiplexing protocol message header format, the preset value of different PDN data carried by the data type flag bit is used , first determine the type of the data packet, when the type of the data packet is the control transmission type, extract the path identifier in the message header of the multiplexing protocol according to the format of the multiplexing protocol message header.

In one embodiment, when the flag bit representing the data type carrying PDN data is a preset value of 0, it indicates that the data packet received by the communication module is a control type data packet. According to the multiplexing protocol message header format, in the multiplexing protocol message The path identifier filling part of the header extracts the path identifier.

In one embodiment, when the flag bit representing the data type carrying PDN data is a preset value of 1, it indicates that the data packet received by the communication module is a data type data packet, and when the data packet is received, the communication module can be triggered The operation of receiving the control information in the control information, based on this operation, receive the data packet forwarding instruction sent by the host to the communication module, based on the forwarding instruction, according to the multiplexing protocol message header format, extract the path in the path identifier filling part of the multiplexing protocol message header logo.

In this embodiment, the data type flag bit of the multiplexing protocol message header in the data packet is parsed according to the preset multiplexing protocol message header format. The format of the protocol message header is to extract the path identifier from the path identifier filling part of the multiplexed protocol message header, which can accurately determine the path identifier of the data packet for transmission. When the communication module receives the data packet, it can avoid the same channel of multiple PDN data. Redundancy is generated on the network, thereby improving the efficiency of data communication.

In one embodiment, as shown in Figure 4, the data communication method further includes:

Step 402 , according to the format of the multiplexing protocol message header, read the data capacity filled in the data capacity filling part of the multiplexing protocol message header; the data capacity is dynamically determined by the host based on the network quality parameter.

Among them, the data capacity refers to the size of each transmission data packet. For example, if the size of each transmission data packet is 128 Bytes, when the data packet is sent, the data capacity of the multiplexing protocol message header is filled with a value of 128 Bytes. The network quality parameter refers to a parameter that can reflect the ability to transmit data packets in the process of data communication. For example, the network throughput of the bus or the data transfer rate of the bus, etc.

Specifically, the data capacity filled in the data capacity filling part of the multiplexing protocol message header can be read according to the multiplexing protocol message header format, and the data capacity can be dynamically determined according to the network quality parameter. For example, the padding value in the third byte segment and the fourth byte segment of the multiplexing protocol message header can be used as the data capacity.

In one embodiment, a field corresponding to the data capacity filling part of the multiplexing protocol message header may be parsed by using the multiplexing protocol message header parsing plug-in to obtain the data capacity filled by the data capacity filling part. For example, the corresponding PAYLOAD_LEN_WITH_PADDING field in the multiplexing protocol message header is parsed to obtain a value filled in this field, which is the data capacity. For example, the padding value in this field is expressed in binary form, assuming that the padding value is 0000000000001111, the padding data capacity is 15 bytes (Byte).

Step 404: Check the PDN data in the data packet according to the data capacity.

Specifically, after reading the data capacity filled in the data capacity filling part of the message header of the multiplexing protocol, the PDN data in the data packet can be verified by using the data capacity as a unit by a data verification method.

In one embodiment, when the host sends a data packet, a hash value is generated for each sent data packet in the unit of data capacity, and when the communication module receives the data packet, the communication module side compares the same data packet Another hash value is generated. When the hash value generated at the host sending end is the same as the hash value generated at the communication module receiving end, it can be obtained that the PDN data verification result in the data packet is that the PDN data in the data packet is complete and accurate. There is no abnormality in the data packet during transmission.

Step 406 , when the check is passed, the PDN data in the data packet is sent through the PDN data path corresponding to the path identifier in the multi-path PDN data paths.

Specifically, when the PDN data in the verification data packet is complete and accurate, the PDN data path corresponding to the path identifier is determined in the multiple PDN data paths, and the PDN data path is used as the PDN data in the data packet that has passed the verification. the pathway.

In one embodiment, when the verification is passed, a data sending instruction in the communication module is triggered, and the data sending instruction extracts the path identifier from the path identifier filling part of the multiplexing protocol message header, and sends the PDN data in the data packet. to the PDN data path corresponding to the path ID.

In this embodiment, by reading the data capacity filled in the data capacity filling part of the multiplexing protocol message header according to the multiplexing protocol message header format, and verifying the PDN data in the data packet according to the data capacity; Accuracy; when the verification is passed, the PDN data in the data packet is sent through the PDN data path corresponding to the path identifier in the multiple PDN data paths, which can prevent multiple PDN data from being sent to the same PDN data path, or, One PDN data is sent to multiple PDN data paths, which reduces data redundancy and improves the efficiency of data communication.

In one embodiment, as shown in Figure 5, the data communication method further includes:

Step 502: Receive PDN response data through multiple PDN data paths.

The PDN response data refers to PDN data sent to the communication module by a terminal connected to the communication module.

Specifically, the communication module may receive the PDN response data sent by the terminal connected to the communication module through the data receiving unit of the local end.

Step 504: Obtain the path identifier of the PDN data path through which the PDN response data passes.

Specifically, the communication module uses multiple PDN data paths to receive PDN response data, the path identifiers of each PDN data path are different, and the path identifier of the PDN data path through which the PDN response data passes can be determined by the acquired PDN response data.

In one embodiment, the path identifier of the PDN data path through which the PDN response data passes may be acquired according to the correspondence between the identifier of the terminal corresponding to the PDN response data and the path identifier. After receiving the PDN response data, the identification of the terminal is determined through the PDN response data, and the path identification of the PDN data path corresponding to the identification of the terminal is determined through the identification of the terminal, so as to obtain the path identification of the PDN data path through which the PDN response data passes.

Step 506, construct the response multiplexing protocol message header according to the preset multiplexing protocol message header format; wherein, the data type flag position of the response multiplexing protocol message header is a preset value indicating that the PDN data is carried, and the response multiplexing protocol message The path identifier filling part of the header is filled with the acquired path identifier.

The response multiplexing protocol message header refers to the multiplexing protocol message header of the PDN response data.

Specifically, after acquiring the path identifier of the PDN data path, the communication module may construct the response multiplexing protocol message header based on the path identifier and the preset value of the data type marker position of the response multiplexing protocol message header.

In one embodiment, the preset multiplexing protocol message header format is octet (the Internet standard uses octets), wherein octets are divided into four groups, the first group is filled with the data type flag position, and the vacant position is filled with eight The second group is filled with the channel identifier, and the third group and the fourth group are filled with the data packet capacity respectively; based on the above-filled multiplexing protocol message header as the constructed response multiplexing protocol message header.

Step 508: Generate a response data packet according to the PDN response data and the response multiplexing protocol message header.

Specifically, after obtaining the PDN response data and the response multiplexing protocol message header, the communication module encapsulates the PDN response data and the response multiplexing protocol message header, and generates a response data packet.

In one embodiment, PDN response data is added after the fourth group of the response multiplexing protocol message header octet, and a data packet encapsulation tool is used to encapsulate the response multiplexing protocol message header and the PDN response data to generate a response data packet.

Step 510: Send a response data packet through the data transmission path.

Specifically, after the local end of the communication module generates the response data packet, it will send the response data packet to the host through the local bus interface, such as the PCIe interface, so that the host can receive the response data packet and send the response data packet to the corresponding on the PDN pathway.

In this embodiment, the PDN response data is received through multiple PDN data paths, the path identifier of the PDN data path through which the PDN response data passes is obtained, and the response multiplexing protocol message header is constructed according to the preset multiplexing protocol message header format. The response data and the response multiplexing protocol message header generate response data packets, and send the response data packets through the data transmission path. The purpose of using the communication module to transmit the response data packet to the host can be achieved.

In one embodiment, as shown in FIG. 6 , the data capacity filling part of the response multiplexing protocol message header is filled with the response data capacity determined by the communication module according to the current network quality parameter; according to the PDN response data and the response multiplexing protocol message The header generates the response packet, including:

Step 602, based on the PDN response data, re-determine the packet data to be sent according to the response data capacity.

The packet data to be sent refers to the PDN response data to be sent and divided into data packets with a certain capacity.

Specifically, before sending the PDN response data, according to the current network quality parameter, the PDN response data can be divided into data packets, and the data packets can ensure the range that the current network can bear during the transmission process.

In one embodiment, the communication module may divide the PDN response data into data packets with the set response data capacity based on the setting operation on the data packet size, and determine the data packet as the data to be sent.

Step 604: Assemble the response multiplexing protocol message header and the packet data to be sent to obtain a response data packet.

Specifically, the communication module may generate a response data packet by adding a response multiplexing protocol message header to the packet data to be sent. So that after the packet data to be sent in the communication module is sent to the host, the host can parse the PDN data in the packet, and send the parsed data to the corresponding PDN path.

In this embodiment, by processing the PDN response data according to the response data capacity and re-determining the packet data to be sent, and assembling the response multiplexing protocol message header and the packet data to be sent to obtain the response data packet, it is possible to determine the transmission size of the response data packet according to the response data capacity. The purpose is to prevent the problem of low transmission accuracy caused by the mismatch between the network quality parameters and the response data capacity, and improve the accuracy of data communication.

In one embodiment, the data communication between the 5G communication module and the Host is taken as an example. The 5G communication module and the host can be separate modules or integrated modules. Specifically, a control channel can be set based on the PCIe interface of the bus interface of the 5G module for the establishment and maintenance of multiple PDN connections; the software interface of the control channel on the Host side is serial port /dev/mhi_ctrl. A data transmission channel is set for multiplexing transmission of multiple channels of PDN data; the software interface of the data transmission channel on the Host side is the network port pcie_mhi0. Using the data multiplexing protocol, multiplexed PDN communication data can be multiplexed and transmitted on the physical data path based on the data multiplexing protocol. Specifically, the control path is used for the transmission of control information between the Host and the 5G communication module, and the PDN data communication is established by using the control path; the data transmission path is used to transmit PDN communication data, and multiple PND communication data are repeated on the data transmission path. use transmission.

In an embodiment, the Host performs multi-channel PDN dialing based on the control channel through the multi-channel dialing tool of the local end, and the dialing parameter is the PDN channel identifier corresponding to the PDN data to be transmitted. After the Host dials into the network successfully, it obtains the assigned IP (Internet Protocol Address) address; the IP address can be used as a parameter in the data packet during communication data transmission. At the same time, the Host can add the communication data to be transmitted by the local end to the 5G communication module through the data transmission channel after adding the data multiplexing protocol message header. After receiving the communication data after adding the data multiplexing protocol message header transmitted by the Host, the 5G communication module parses the data multiplexing protocol message header, obtains the PDN path identifier, and removes the communication data after the data multiplexing protocol message header. It is transmitted to the PDN channel corresponding to the PDN channel identifier.

In one embodiment, the 5G communication module adds a data multiplexing protocol message header to the PDN data received from the air interface, and sends the PDN data to which the data multiplexing protocol message header is added to the Host through a data transmission path on the PCIe bus, and the Host receives After receiving the data, the data transmission channel parses out different PDN channel identifiers according to the data multiplexing protocol message header, and transmits the PDN data after removing the data multiplexing protocol message header to the upper-layer application program corresponding to the PDN channel identifier.

In one embodiment, as shown in FIG. 7 , the specific fields of the data multiplexing protocol message header are expressed as Octet, that is, the Internet standard uses octets, and the data multiplexing protocol message header is divided into four groups of fields. The group field includes the data type of the communication data, the second group field includes the path identifier of the communication data to be transmitted, and the third group field includes the size of each transmission data packet in the communication data transmission process. Through the data multiplexing protocol message header composed of the above fields, the transmission status, transmission path and data packet size of the communication data can be determined. Wherein, when the first byte C/D in the first group of fields is 0, the 5G communication module can parse out the channel identifier MUX_ID when receiving the data packet, and real-time the data packet according to the channel identifier MUX_ID sent to the corresponding PDN channel. The bit for the reserved data type can also be determined by the second byte bit R in the first group of fields, and R can be set according to the actual application scenario. When transmitting data packets, in order to improve the accuracy of data packet transmission, the third group of fields and the fourth group of fields in the data multiplexing protocol message header carry the padding value of the data packet capacity, the third group of fields and the fourth group of fields. The set field of the group field is represented as PAYLOAD_LEN_WITH_PADDING, and the size of the IP data packet sent each time can be limited by the padding value in this field, so that the sent data packet matches the network quality parameter.

In one embodiment, as shown in FIG. 8, MAP_HDR is represented as a data multiplexing protocol message header, and each time the Host or 5G communication module sends data, the data multiplexing protocol message header is added to the corresponding IP data packet ( IP Packet), after data encapsulation, the encapsulated data packet is sent.

It should be understood that although the steps in the flowcharts of FIGS. 2-6 are shown in sequence according to the arrows, these steps are not necessarily executed in the sequence shown by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order, and these steps may be performed in other orders. Moreover, at least a part of the steps in FIGS. 2-6 may include multiple steps or multiple stages. These steps or stages are not necessarily executed and completed at the same time, but may be executed at different times. The execution of these steps or stages The order is also not necessarily sequential, but may be performed alternately or alternately with other steps or at least a portion of the steps or phases within the other steps.

In one embodiment, as shown in FIG. 9 , a data communication apparatus 900 is provided, including: a multi-channel PDN data channel establishment module 902, a data packet receiving module 904, a channel identification obtaining module 906, and a PDN data sending module 908, Wherein: the multi-channel PDN data path establishment module 902 is used to exchange control information with the host through the control path divided from the bus interface, and establish a multi-channel PDN data path; the data packet receiving module 904 is used to pass the slave bus interface. The divided data transmission path receives the data packets transmitted by the host multiplexed data transmission path; the path identification obtaining module 906 is used to parse the multiplexing protocol message header in the data packet to obtain the path identification; the PDN data sending module 908 is used for The PDN data in the data packet is sent through the PDN data paths corresponding to the path identifiers in the multi-path PDN data paths.

In one embodiment, the path identifier obtaining module 906 includes: a data type flag bit parsing unit, configured to parse the data type flag bit of the multiplexing protocol message header in the data packet according to a preset multiplexing protocol message header format; the path The identifier extraction unit is used for extracting the path identifier from the path identifier filling part of the multiplexing protocol message header according to the multiplexing protocol message header format when the data type flag bit is a preset value indicating that the PDN data is carried.

In one embodiment, the apparatus includes: a data capacity reading unit, configured to read the data capacity filled by the data capacity filling part of the multiplexing protocol message header according to the multiplexing protocol message header format; The parameters are dynamically determined; the PDN data verification unit is used to verify the PDN data in the data packet according to the data capacity; the PDN data transmission module is used to perform the multi-channel PDN data path and path identification when the verification is passed. The corresponding PDN data path sends the PDN data in the data packet.

In one embodiment, the apparatus includes: a PDN response data receiving unit, configured to receive PDN response data through multiple PDN data paths; a path identifier acquiring unit, configured to acquire a path identifier of the PDN data path through which the PDN response data passes; A protocol message header construction unit is used to construct a response multiplexing protocol message header according to a preset multiplexing protocol message header format; the data type flag position of the response multiplexing protocol message header is a preset value indicating that the PDN data is carried, and the response The path identification filling part of the multiplexing protocol message header is filled with the obtained path identification; the response packet generating unit is used to generate a response packet according to the PDN response data and the response multiplexing protocol message header; the response packet sending module is used to pass Data transmission path, sending response packets.

In one embodiment, the response data packet generating unit is configured to re-determine the packet data to be sent based on the PDN response data according to the capacity of the response data; and assemble the response multiplexing protocol message header and the packet data to be sent to obtain the response data packet.

For the specific limitation of the data communication apparatus, reference may be made to the limitation of the data communication method above, which will not be repeated here. Each module in the above-mentioned data communication device may be implemented in whole or in part by software, hardware and combinations thereof. The above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

In one embodiment, a computer device is provided, and the computer device may be a terminal, and its internal structure diagram may be as shown in FIG. 10 . The computer equipment includes a processor, memory, a communication interface, a display screen, and an input device connected by a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium, an internal memory. The nonvolatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the execution of the operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for wired or wireless communication with an external terminal, and the wireless communication can be realized by WIFI, operator network, NFC (Near Field Communication) or other technologies. The computer program, when executed by a processor, implements a data communication method. The display screen of the computer equipment may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment may be a touch layer covered on the display screen, or a button, a trackball or a touchpad set on the shell of the computer equipment , or an external keyboard, trackpad, or mouse.

Those skilled in the art can understand that the structure shown in FIG. 10 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied. Include more or fewer components than shown in the figures, or combine certain components, or have a different arrangement of components.

In one embodiment, a computer device is also provided, including a memory and a processor, where a computer program is stored in the memory, and the processor implements the steps in the foregoing method embodiments when the processor executes the computer program.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, implements the steps in the foregoing method embodiments.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage In the medium, when the computer program is executed, it may include the processes of the above-mentioned method embodiments. Wherein, any reference to memory, storage, database or other media used in the various embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory, or optical memory, and the like. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, the RAM may be in various forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features It is considered to be the range described in this specification.

The above-mentioned embodiments only represent several embodiments of the present application, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be noted that, for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the scope of protection of the patent of the present application shall be subject to the appended claims.

Claims

A data communication method, executed in a communication module connected with a host through a bus interface, the method comprising:

Through the control path divided from the bus interface, the exchange of control information with the host computer is performed to establish multiple PDN data paths;

receiving the data packets transmitted by the host multiplexing the data transmission path through the data transmission path divided from the bus interface;

Parsing the multiplexing protocol message header in the data packet to obtain a path identifier;

The PDN data in the data packet is sent through the PDN data path corresponding to the path identifier in the multi-path PDN data paths.
The method according to claim 1, wherein the analyzing the multiplexing protocol message header in the data packet to obtain the path identifier comprises:

According to the preset multiplexing protocol message header format, parse the data type flag bit of the multiplexing protocol message header in the data packet;

When the data type flag bit is a preset value indicating that the PDN data is carried, the path identifier is extracted from the path identifier filling part of the multiplexing protocol message header according to the multiplexing protocol message header format.
The method of claim 2, further comprising:

According to the multiplexing protocol message header format, read the data capacity filled in the data capacity filling part of the multiplexing protocol message header; the data capacity is dynamically determined by the host based on network quality parameters;

According to the data capacity, verify the PDN data in the data packet;

When the check is passed, the passing of the PDN data path corresponding to the path identifier in the multi-path PDN data paths is performed, and the PDN data in the data packet is sent.
The method of claim 1, further comprising:

receiving PDN response data through the multiple PDN data paths;

Obtain the path identifier of the PDN data path through which the PDN response data passes;

The response multiplexing protocol message header is constructed according to the preset multiplexing protocol message header format; the data type flag position of the response multiplexing protocol message header is a preset value indicating that the PDN data is carried, and the response multiplexing protocol message header is The access identifier filling part of the is filled with the acquired access identifier;

Generate a response packet according to the PDN response data and the response multiplexing protocol message header;

The response data packet is sent through the data transmission path.
The method according to claim 4, wherein the data capacity filling part of the response multiplexing protocol message header is filled with the response data capacity determined by the communication module according to the current network quality parameter;

The generating a response packet according to the PDN response data and the response multiplexing protocol message header includes:

Based on the PDN response data, re-determine the packet data to be sent according to the response data capacity;

A response data packet is obtained by assembling the response multiplexing protocol message header and the to-be-sent packet data.
A data communication device, comprising:

The multi-channel PDN data path establishment module is used to exchange control information with the host through the control path divided from the bus interface to establish the multi-channel PDN data path;

a data packet receiving module, configured to receive the data packets transmitted by the host multiplexing the data transmission path through the data transmission path divided from the bus interface;

a path identification obtaining module, used for parsing the multiplexing protocol message header in the data packet to obtain the path identification;

The PDN data sending module is configured to send the PDN data in the data packet through the PDN data path corresponding to the path identifier in the multiple PDN data paths.
The apparatus according to claim 6, wherein the access identification obtaining module comprises:

a data type flag bit parsing unit, configured to parse the data type flag bit of the multiplexing protocol message header in the data packet according to a preset multiplexing protocol message header format;

A path identifier extraction unit, used for extracting from the path identifier filling part of the multiplexing protocol message header according to the multiplexing protocol message header format when the data type flag bit is a preset value indicating that the PDN data is carried Path identification.
The apparatus of claim 7, further comprising:

a data capacity reading unit, configured to read the data capacity filled by the data capacity filling part of the multiplexing protocol message header according to the multiplexing protocol message header format; the data capacity is the host based on network quality parameters dynamically determined;

A PDN data verification unit, configured to verify the PDN data in the data packet according to the data capacity;

The PDN data sending module is configured to, when the check is passed, execute the PDN data path corresponding to the path identifier in the multi-path PDN data paths, and send the PDN data in the data packet.
A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 5 when the processor executes the computer program.
A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method of any one of claims 1 to 5.