WO2023077996A1 - Method and apparatus for forwarding user message, and electronic device and storage medium - Google Patents

Abstract

Disclosed in the present application are a method and apparatus for forwarding a user message, and an electronic device and a storage medium. The method for forwarding a user message is applied to a user plane function (UPF) device, and comprises: receiving a user message, which is sent by at least one user equipment, and respectively generating a message sending list for the user equipment, wherein the message sending list is generated according to a sending timestamp which is carried in the user message; and sequentially sending out user messages in the message sending list according to the message sending list.

Description

User message forwarding method, device, electronic equipment and storage medium

related application

This application claims priority to a Chinese patent application with application number 202111302256.4 filed on November 4, 2021, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the technical field of communications, and in particular to a user message forwarding method, device, electronic equipment and storage medium.

Background technique

Latency refers to the time required for a packet to be transmitted from one end of a network to the other. During the end-to-end transmission process, when the service flow reaches each node in the network, a certain degree of delay, jitter, and even out-of-order packet loss will occur. The rapid development and wide application of 5G technology have put forward higher and higher requirements for the deterministic forwarding of data in communication networks. For user packets sent to the core network, there is a need for a method capable of measuring the arrival delay of user packets, solving the problem of out-of-sequence during packet transmission, and ensuring deterministic forwarding of user packets.

However, in traditional communication technologies, there is no relevant method to solve the problem of out-of-sequence packets.

Contents of the invention

The purpose of the embodiments of the present application is to provide a user message forwarding method, device, electronic equipment, and storage medium to solve the problem of out-of-sequence sending of user messages and realize deterministic forwarding of user messages.

In order to solve the above problems, the embodiment of the present application provides a user message forwarding method, which is applied to a user plane function (User plane function, referred to as "UPF") device, including: receiving a user message sent by at least one user equipment , respectively generating a message sending list for the user equipment; wherein, the message sending list is generated according to the sending time stamp carried in the user message; according to the message sending list, the message sending list The user packets in it are sent out one by one.

The embodiment of the present application also provides a user message forwarding device, including: a generating module, configured to receive a user message sent by at least one user equipment, and generate a message sending list for the user equipment respectively; wherein, the The message sending list is generated according to the sending time stamps carried in the user messages; the sending module is configured to sequentially send the user messages in the message sending list according to the message sending list.

The embodiment of the present application also provides an electronic device, including: at least one processor; and a memory connected in communication with the at least one processor; wherein, the memory stores instructions that can be executed by the at least one processor, and the instructions Executed by at least one processor, so that at least one processor can execute the above method for forwarding user packets.

Embodiments of the present application also provide a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the above method for forwarding user messages is implemented.

In the embodiment of the present application, the UPF device receives the user message sent by at least one user equipment, and generates a message sending list for the user equipment respectively, which can avoid confusion of user messages sent by different user equipments connected to the same UPF device. The UPF device generates a message sending list according to the sending time stamp carried in the user message and sends the user messages sequentially according to the generated message sending list, and can receive out-of-order user messages due to different delays, Send out according to the correct sending sequence of the user equipment, and realize the deterministic forwarding of the user message.

Description of drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings, and these exemplifications do not constitute a limitation to the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the drawings are not limited to scale.

FIG. 1 is a flow chart of a method for forwarding user messages according to an embodiment of the present application;

FIG. 2 is a flow chart of a method for forwarding user messages according to another embodiment of the present application;

FIG. 3 is a schematic structural diagram of a device for forwarding user messages according to an embodiment of the present application;

Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, various implementations of the present application will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present application, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in this application can also be realized.

An embodiment of the present application relates to a method for forwarding a user message, which is applied to a UPF device with a user plane function.

In this application, the user plane function UPF device receives the user message sent by at least one user equipment, and generates a message sending list for the user equipment respectively; wherein, the message sending list is based on the user message carried in the user message Generating a sending time stamp; sending the user messages in the message sending list sequentially according to the message sending list.

The implementation details of the method for forwarding user messages in this application are described in detail below. The following content is only for the convenience of understanding the implementation details of this solution, and is not necessary for implementing this solution. As shown in Figure 1, the following steps may be included:

Step 101, receiving a user message sent by at least one user equipment, and generating a message sending list for the user equipment respectively; wherein, the message sending list is generated according to the sending time stamp carried in the user message.

In this step, the UPF device may connect to different user equipments (user equipment, "UE" for short). In order to prevent different UEs from connecting to the same UPF, resulting in conflicts in the sending timestamps of user packets, the UPF device generates packet sending lists for different user equipments according to the sending timestamps carried in the user packets. The message transmission list is generated according to the transmission time stamp carried in the user message, so that the packets that may be out of sequence during transmission can be ranked in the correct transmission order in the message transmission list, and finally can be sent by the UE Messages are sent out in the correct order.

Step 102, according to the message sending list, send the user messages in the message sending list sequentially.

Specifically, the packets sent by the UE received by the UPF device are arranged in the correct order sent by the UE in the packet sending list, and the UPF device sends the user packets in sequence according to the packet sending list, which can solve the problem of The out-of-sequence problem may occur during the transmission of files from UE to UPF.

In an example, before the user messages in the message sending list are sequentially sent out according to the message sending list, the gate at the sending end of the UPF device may also be controlled according to a preset gating rule. control state. In this case, the sequentially sending the user packets in the packet sending list according to the packet sending list may include: when the gate control state is open, according to the A message sending list, sending user messages in the message sending list sequentially. The UPF device uses the gated sending method to send messages, that is, sends the messages in the message sending list at a certain time interval, which can further ensure that the messages are sent in the correct order. Avoid possible packet disorder caused by UE sending early and arriving UPF late.

The preset gating rule in the above example may include: when the first time interval is not less than the second time interval, controlling the gating state to be open; wherein, the first time interval is based on the current time and the Acquiring the difference between the last user message sending time of the UPF device, the second time interval is based on the sending timestamp carried in the next user message to be sent in the message sending list and the last time of the UPF device Obtain the difference value of the sending timestamp carried in the sent user message. This setting is made for the gating rule, that is, the sending end of the UPF device waits for the interval between the sending time stamps carried by two adjacent messages in the message sending list, and then turns on the sending end to send messages, which can avoid possible UE sending , arrive at the UPF device late, and there are packets with sending timestamps between the last sent packet and the packets to be sent in the list, which causes the packets to be out of order. The preset gating rule gate(f) involved in this example can be expressed by the following expression:

Among them, t is the current time, T _send refers to the sending timestamp carried in the user message sent by the UPF device last time, and T' _send refers to the sending time carried in the next user message to be sent in the message sending list _T'UpfSend refers to the time when the UPF device sent the last user message. open means that the gate control status of the sending end of the UPF device is open; close means that the gate control status of the sending end of the UPF device is off.

In another example, after the user messages in the message sending list are sequentially sent out according to the message sending list, it may further include: Timestamp, update the message sending list. In this example, updating the message sending list according to the sending time stamp carried in the user message received in real time may be that the sending time stamp carried in the user message received in real time is less than the time stamp carried in the report In the case of the transmission time stamp carried in the next user message to be sent in the message transmission list, add the user message received in real time to the message transmission list and use it as the next user message to be sent arts.

If the sending timestamp carried in the real-time received message is smaller than the sending timestamp carried in the next user message to be sent in the message sending list, it means that the real-time received message was sent by the UE earlier Messages to be sent in the message sending list. Therefore, in order to ensure that the messages are sent sequentially, it is necessary to add the real-time received message to the message sending list and use it as the next user message to be sent.

The present application receives user messages sent by at least one user equipment, and generates message sending lists for the user equipments respectively, which can avoid confusion of user messages sent by different user equipments connected to the same UPF device. The UPF device generates a message sending list according to the sending time stamp carried in the user message and sends the user messages sequentially according to the generated message sending list, and can receive out-of-order user messages due to different delays, Send out according to the correct sending sequence of the user equipment, and realize the deterministic forwarding of the user message.

Another embodiment of the present application relates to a method for forwarding user packets, which is applied to a user plane function UPF device. In this application, the user plane function UPF device receives a user message sent by at least one user equipment, and generates a message sending list for the user equipment respectively. Before generating the message sending list for the user equipment, the method further includes: obtaining the sending time stamp carried in the user message, and obtaining the arrival delay of the user message according to the sending time stamp; Discarding user packets whose arrival delays exceed a preset delay threshold according to the arrival delays of the plurality of user packets.

The implementation details of the method for forwarding user messages in this application are described in detail below. The following content is only for the convenience of understanding the implementation details of this solution, and is not necessary for implementing this solution. As shown in Figure 2, the following steps may be included:

Step 201: Receive a user message sent by at least one user equipment, obtain a sending time stamp carried in the user message, and obtain an arrival delay of the user message according to the sending time stamp.

For a user message f, the acquisition of its arrival delay Δt(f, qfi) can be expressed by the following expression:

Δt(f, qfi) = T _rev (f, qfi) - T _send (f, qfi)

Among them, T _rev (f, qfi) refers to the sending timestamp carried in the message when the UE sends the message, and T _send (f, qfi) refers to the quality of service (Quality of Service, referred to as "QoS") carried in the user message. ”) identifier, and the preset delay threshold can be set accordingly; T _rev (f, qfi) refers to the time stamp when the UPF device receives the user message.

After receiving the user packet sent by at least one user equipment and obtaining the sending time stamp carried in the user packet, a packet delay statistics list may also be generated according to the received user packet and the obtained delay. The delay value Δt(f _i ,qfi) stored in the i-th position in the packet delay statistics list can be expressed by the following expression:

for 1≤i≤n

Wherein, n refers to the number of delays saved in the statistics list.

Step 202, according to the arrival delays of multiple user packets, discard user packets whose arrival delays exceed a preset delay threshold.

In this step, the user packets whose arrival delay exceeds the preset delay threshold, that is, the user packets with too large delay, may have been sent by the UPF device at the adjacent time, so if the Adding to the cache list may cause out-of-order packets, which should be discarded. The processing of the received message can also be realized by using the following expression to preset the delay screening policy policy(f):

Wherein, drop refers to discarding the message, and keep refers to performing further processing on the message (adding it to the message sending list). E(Δt,qfi) is the preset delay threshold.

In an example, the delay threshold can be preset to obtain the preset delay threshold, and the preset delay threshold is calculated according to the average value of the arrival delays of multiple user packets and the service quality requirements corresponding to the user packets. The delay threshold is dynamically updated. The delay threshold E(Δt,qfi) can be preset and dynamically updated by the following expression:

为n个Δt(f _i,qfi)的平均值，可以通过以下表达式获取： Among them, n is the number of user packets obtained by the UPF equipment, ratio (qfi) refers to different qfi, that is, corresponding correction parameters configured for different service quality requirements corresponding to user packets, and the range can be based on actual business requirements (for service flow delay requirements) setting.

is the average value of n Δt(f _i ,qfi), which can be obtained by the following expression:

In addition to the average value, the mode value or other statistics of n Δt(f _i , qfi) can also be used to set the delay threshold.

Step 203, generating a packet transmission list for the user equipment respectively; wherein, the packet transmission list is generated according to the transmission time stamp carried in the user packet.

Step 204, according to the message sending list, send the user messages in the message sending list sequentially.

It is not difficult to find that step 203 and step 204 in this embodiment are the same as step 101 and step 102 in the previous embodiment, so the relevant technical details mentioned in the previous embodiment are still valid in this embodiment, and in the previous embodiment The technical effects that can be achieved in the implementation manner can also be achieved in this implementation manner, and in order to reduce repetition, details are not repeated here.

The user message forwarding method involved in this embodiment may also be implemented by a user message forwarding device. Wherein, the user message forwarding device may include a delay acquisition module for obtaining the arrival delay of the user message, and a forwarding message acquisition module for discarding messages with too large delay and only retaining messages that can be forwarded, And generate module and send module.

This embodiment receives the user message sent by at least one user equipment, and obtains the sending timestamp carried in the user message, and then according to the sending timestamp and the time stamp of the user message received by the UPF device, the user message can be obtained arrival delay. The user packets whose arrival delay exceeds the preset delay threshold are discarded, so as to prevent the sequence sending of service flows from being affected by excessive packet delay. Generating a packet transmission list for the user equipment separately can avoid confusion in user packets sent by different user equipment connected to the same UPF device. The UPF device generates a message sending list according to the sending time stamp carried in the user message and sends the user messages sequentially according to the generated message sending list, and can receive out-of-order user messages due to different delays, Send out according to the correct sending sequence of the user equipment, and realize the deterministic forwarding of the user message.

An embodiment of the present application relates to a device for forwarding user messages, as shown in FIG. 3 , including:

The generating module 301 is configured to receive a user message sent by at least one user equipment, and generate a message sending list for the user equipment respectively; wherein, the message sending list is generated according to the sending time stamp carried in the user message ;

The sending module 302 is configured to sequentially send the user messages in the message sending list according to the message sending list.

In an example, the device for forwarding user messages may further include: a gating module (not shown in the figure), configured to send user messages in the message sending list according to the message sending list Before the text is sent out in sequence, the gating state of the sending end of the UPF device is controlled according to the preset gating rules; in this case, according to the message sending list, the user messages in the message sending list are sent Sending out sequentially may include: when the gate control state is on, according to the message sending list, sending the user messages in the message sending list sequentially.

In this example, the preset gating rule may include: when the first time interval is not less than the second time interval, controlling the gating state to be open; wherein the first time interval is based on the current time and the set The difference between the last user message sending time of the UPF device is obtained, and the second time interval is based on the sending time stamp carried in the next user message to be sent in the message sending list and the time stamp on the UPF device. Obtain the difference value of the sending timestamp carried in the user message sent once.

In an example, the device for forwarding user messages may further include: an update module (not shown in the figure), configured to send user messages in the message sending list according to the message sending list After sending out sequentially, the message sending list is updated according to the sending time stamp carried in the user message received in real time.

In an example, the update module may also be configured to include the sending timestamp carried in the user message received in real time to be smaller than the sending timestamp carried in the next user message to be sent in the message sending list In the case of , add the user message received in real time to the message sending list, and use it as the next user message to be sent.

In an example, the device for forwarding user packets may further include: a discarding module (not shown in the figure), configured to acquire the carry the sending timestamp, and obtain the arrival delay of the user message according to the sending timestamp; according to the arrival delay of multiple user messages, discard the arrival delay exceeding the preset delay threshold user messages.

The preset delay threshold involved in this example may be dynamically updated according to an average value of the arrival delays of multiple user packets and a service quality requirement corresponding to the user packets.

The user message forwarding device provided by this application receives user messages sent by at least one user equipment, and generates message sending lists for the user equipments respectively, which can avoid confusion of user messages sent by different user equipments connected to the same UPF device. The UPF device generates a message sending list according to the sending time stamp carried in the user message and sends the user messages sequentially according to the generated message sending list, and can receive out-of-order user messages due to different delays, Send out according to the correct sending order of the user equipment, and realize the deterministic forwarding of the user message.

It is worth mentioning that all the modules involved in the above embodiments of the present application are logical modules. In practical applications, a logical unit can be a physical unit, or a part of a physical unit, and can also Combination of physical units. In addition, in order to highlight the innovative part of the application, units that are not closely related to solving the technical problems raised in the application are not introduced in the application, but this does not mean that there are no other units in the application.

An embodiment of the present application also provides an electronic device, as shown in FIG. 4 , including at least one processor 401; and a memory 402 communicatively connected to the at least one processor 401; An instruction executed by one processor 401, the instruction is executed by at least one processor 401, so that at least one processor 401 can execute the foregoing method for forwarding user packets.

Wherein, the memory 402 and the processor 401 are connected by a bus, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors 401 and various circuits of the memory 402 together. The bus may also connect together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and therefore will not be further described herein. The bus interface provides an interface between the bus and the transceivers. A transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing means for communicating with various other devices over a transmission medium. The data processed by the processor 401 is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor 401 .

Processor 401 is responsible for managing the bus and general processing, and may also provide various functions including timing, peripheral interface, voltage regulation, power management, and other control functions. And the memory 402 may be used to store data used by the processor 401 when performing operations.

The above-mentioned products can execute the methods provided in the embodiments of this application, and have corresponding functional modules and beneficial effects for executing the methods. For technical details not described in detail in this application, please refer to the methods provided in the embodiments of this application.

Embodiments of the present application also provide a computer-readable storage medium storing a computer program. When the computer program is executed by the processor, the above method for forwarding the user message is realized.

Those skilled in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program, the program is stored in a storage medium, and includes several instructions to make a device (which can be A single chip microcomputer, a chip, etc.) or a processor (processor) executes all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, referred to as "ROM"), random access memory (Random Access Memory, referred to as "RAM"), magnetic disk or optical disc, etc. A medium on which program code can be stored.

The above-mentioned embodiments are provided for those of ordinary skill in the art to implement and use this application. Those of ordinary skill in the art can make various modifications or changes to the above-mentioned embodiments without departing from the inventive idea of this application. Therefore, this The protection scope of the application is not limited by the above-mentioned embodiments, but should conform to the maximum scope of the innovative features mentioned in the claims.

Claims (10)

A method for forwarding user packets, applied to user plane functional equipment, comprising: Receive a user message sent by at least one user equipment, and generate a message sending list for the user equipment respectively; wherein, the message sending list is generated according to the sending time stamp carried in the user message; According to the message sending list, the user messages in the message sending list are sent sequentially. The method for forwarding user messages according to claim 1, wherein, before the user messages in the message sending list are sequentially sent out according to the message sending list, further comprising: according to preset The gating rule controls the gating state of the sending end of the UPF device; According to the message sending list, sending the user messages in the message sending list sequentially, including: When the gate control state is on, the user packets in the packet sending list are sent sequentially according to the packet sending list. The method for forwarding user messages according to claim 2, wherein the preset gating rules include: When the first time interval is not less than the second time interval, controlling the gate state to be on; Wherein, the first time interval is obtained according to the difference between the current time and the last user message sending time of the UPF device, and the second time interval is obtained according to the next user message to be sent in the message sending list The difference between the sending time stamp carried in the text and the sending time stamp carried in the last user message sent by the UPF device is obtained. The method for forwarding user messages according to claim 2, wherein, after the user messages in the message sending list are sequentially sent according to the message sending list, further comprising: The message sending list is updated according to the sending time stamp carried in the user message received in real time. The method for forwarding a user message according to claim 4, wherein said updating said message sending list according to the sending timestamp carried in the user message received in real time comprises: When the sending timestamp carried in the user message received in real time is smaller than the sending timestamp carried in the next user message to be sent in the message sending list, the real-time received The user message is added to the message sending list and used as the next user message to be sent. The method for forwarding a user message according to any one of claims 1 to 5, wherein, before said respectively generating a message sending list for said user equipment, further comprising: Obtain the sending time stamp carried in the user message, and obtain the arrival delay of the user message according to the sending time stamp; Discarding user packets whose arrival delays exceed a preset delay threshold according to the arrival delays of the plurality of user packets. The method for forwarding user packets according to claim 6, wherein the preset delay threshold is based on the average value of the arrival delays of multiple user packets and the service quality corresponding to the user packets Dynamic updates are required. A device for forwarding user messages, comprising: A generating module, configured to receive a user message sent by at least one user equipment, and generate a message sending list for the user equipment respectively; wherein, the message sending list is generated according to the sending time stamp carried in the user message; A sending module, configured to sequentially send the user messages in the message sending list according to the message sending list. An electronic device comprising: at least one processor; and, a memory communicatively coupled to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, the instructions are executed by the at least one processor, so that the at least one processor can perform the operation described in any one of claims 1 to 7 The forwarding method of user packets described above. A computer-readable storage medium storing a computer program, wherein, when the computer program is executed by a processor, the user message forwarding method according to any one of claims 1 to 7 is implemented.

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