WO2021218321A1

WO2021218321A1 - Method for processing data flow and communication apparatus

Info

Publication number: WO2021218321A1
Application number: PCT/CN2021/077863
Authority: WO
Inventors: 李汉成; 周汉; 吴问付
Original assignee: 华为技术有限公司
Priority date: 2020-04-30
Filing date: 2021-02-25
Publication date: 2021-11-04
Also published as: CN113596910A

Abstract

The present application provides a method for processing a data flow and a communication apparatus. The method comprises: obtaining first information, the first information comprising jitter requirements of a data flow and/or transmission delay requirements of the data flow, the data flow being a non-periodic data flow; and determining a processing period according to the first information, the processing period being a period during which the data flow is processed periodically. The period during which the non-periodic data flow is processed periodically can be determined according to the jitter requirements of the non-periodic data flow and/or the transmission delay requirements of the non-periodic data flow, so as to realize periodic transmission of the non-periodic data flow on the basis of the processing period.

Description

Method and communication device for processing data stream

This application requires a Chinese patent application filed with the Chinese Patent Office with the application number 202010361208.1 and the application name "Method and Communication Device for Processing Data Stream" on April 30, 2020, and a Chinese patent application on September 30, 2020. The patent office, the application number is 202011061146.9, the priority of the Chinese patent application named "Method and Communication Device for Processing Data Stream", the entire content of which is incorporated in this application by reference.

Technical field

This application relates to the field of communication, and more specifically, to a method and communication device for processing data streams.

Background technique

Time-sensitive network (TSN) networks are based on Layer 2 switching to provide reliable delay transmission services, which can guarantee the reliability of delay-sensitive business data transmission and predictable end-to-end transmission delays. Under the system architecture of the 3rd generation partnership project (3GPP) network and the TSN network interoperability, the fifth generation (5G) system (5G System, 5Gs) can realize end-to-end deterministic transmission of users .

When the deterministic transmission capability of 5Gs is opened, for non-periodic streams, 5Gs can be shaped into periodic streams to send, so that deterministic transmission can be realized according to the mechanism of periodic streams, simplifying the implementation of 5Gs. However, how to determine the period when 5Gs performs periodic processing on aperiodic data streams is not covered by the current technology.

Summary of the invention

The present application provides a method and a communication device for processing a data stream, which can determine that the aperiodic data stream is periodically controlled according to the jitter requirement of the aperiodic data stream and/or the transmission delay requirement of the aperiodic data stream. The processing cycle, so that the periodic transmission of the aperiodic data stream can be realized based on the processing cycle.

In a first aspect, a method for processing a data stream is provided, including: a first device acquires first information, the first information includes the jitter requirement of the data stream and/or the transmission delay requirement of the data stream, the data stream It is an aperiodic data stream; the first device determines a processing period according to the first information, and the processing period is a period during which the data stream is periodically processed.

The jitter requirement of the data stream can be the jitter requirement of the data stream during end-to-end transmission, or the jitter requirement of the data stream during transmission in the system. The transmission delay requirement of the data stream may be the transmission delay requirement of the data stream on the system, or the end-to-end transmission delay requirement of the data stream. The system may be 5Gs, for example.

According to the method for data processing stream provided in the present application, the first device can determine that the aperiodic data stream is periodically subjected to the jitter requirement and/or the transmission delay requirement of the aperiodic data stream. The processing cycle, so that the aperiodic data stream can be periodically processed based on the cycle, so as to realize the periodic transmission of the aperiodic data stream.

With reference to the first aspect, in some implementations of the first aspect, the first information may further include: the scheduling period of the access network device, and/or the minimum period; wherein, the minimum period is the minimum processing supported by the system cycle.

With reference to the first aspect, in some implementation manners of the first aspect, the first device is a policy control network element.

Based on this solution, the policy control network element can determine the period during which the aperiodic data stream is periodically processed according to the first information.

With reference to the first aspect, in some implementations of the first aspect, the first device acquiring the first information includes: the first device acquires the first information from the application network element; or, the first device is used to forward the data stream according to The identification information of the quality of service (quality of service, QoS) determines the first information.

With reference to the first aspect, in some implementation manners of the first aspect, the first device is a session management network element.

Based on this solution, the session management network element can determine the period during which the aperiodic data stream is periodically processed according to the first information.

With reference to the first aspect, in some implementation manners of the first aspect, the first device acquiring the first information includes: the first device acquiring the first information from the policy control network element.

With reference to the first aspect, in some implementation manners of the first aspect, the first device is a user plane network element.

Based on this solution, the user plane network element can determine the period during which the aperiodic data stream is periodically processed according to the first information.

With reference to the first aspect, in some implementation manners of the first aspect, the first device acquiring the first information includes: the first device acquiring the first information from a policy control network element or a session management network element.

With reference to the first aspect, in some implementation manners of the first aspect, the method may further include: the first device sends the processing period to the terminal device and/or the access network device.

With reference to the first aspect, in some implementation manners of the first aspect, the method may further include: the first device sends the processing period to an application network element, where the processing period is used by the application network element to compare the data Stream for processing.

With reference to the first aspect, in some implementation manners of the first aspect, the first device is an application network element.

Based on this solution, the application network element can determine the period during which the aperiodic data stream is periodically processed according to the first information.

With reference to the first aspect, in some implementations of the first aspect, the method may further include: the first device sends the processing period to one or more of the following devices: terminal device, access network device, or user Surface network element.

By sending the processing period to the user plane network element, access network device, and/or terminal device, the user plane network element, access network device, and/or terminal device can perform the aperiodic data flow based on the processing period. Periodic processing realizes periodic transmission of non-periodic data streams.

With reference to the first aspect, in some implementations of the first aspect, the method may further include: if the data stream is a downlink data stream, sending the first device to the terminal device and/or the access network The device sends instruction information; if the data stream is an uplink data stream, the first device sends the instruction information to the user plane network element and/or the terminal device; wherein, the instruction information is used to instruct the processing The period is used to process the data stream.

In a second aspect, a method for processing a data stream is provided, including: an access network device determines a minimum period, where the minimum period is the minimum processing period supported by the system; and the access network device sends all data streams to the first device. The minimum period is used by the first device to determine a processing period, and the processing period is a period in which aperiodic data streams are periodically processed.

According to this solution, the first device can determine the period in which the aperiodic data stream is periodically processed according to the minimum period determined by the access network device, so that the aperiodic data stream can be periodically processed based on the period to realize the non-periodic data stream. Periodic transmission of periodic data streams.

With reference to the second aspect, in some implementation manners of the second aspect, the method may further include: the access network device receiving the processing period from the first device.

The access network device can periodically process the aperiodic data stream according to the processing period, so as to realize the periodic transmission of the aperiodic data stream.

With reference to the second aspect, in some implementations of the second aspect, the method may further include: the access network device receiving indication information from the first device, the indication information being used to indicate the processing period Used to process the data stream.

In a third aspect, a method for processing a data stream is provided, including: a second device obtains first information, where the first information includes the jitter requirement of the data stream and/or the transmission delay requirement of the data stream, The data stream is an aperiodic data stream; the second device sends the first information to the first device, and the first information is used by the first device to determine a processing period, and the processing period is the The period in which the data stream is periodically processed.

According to the method for data processing stream provided by the present application, the first device can determine the aperiodic data stream according to the jitter requirement of the aperiodic data stream and/or the transmission delay requirement of the aperiodic data stream provided by the second device The period in which the data stream is periodically processed, so that the non-periodic data stream can be periodically processed based on the period to realize the periodic transmission of the non-periodic data stream.

With reference to the third aspect, in some implementations of the third aspect, the second device is an application network element, and the first device is a policy control network element, a session management network element, or a user plane network element.

In a fourth aspect, a method for processing a data stream is provided, including: a first device determines a processing period of the data stream, the data stream is an aperiodic data stream, and the processing period is the aperiodic The period during which the data stream is periodically processed, or the data stream is a periodic data stream, and the processing period is the sending period of the periodic data stream; the first device determines the first device according to the processing period Time information, where the first time information is time information for the system to process the data stream.

According to the method provided in the present application, the first device can determine the time information for the system to process the data stream according to the processing period of the data stream, so that deterministic transmission can be realized according to the time information.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first device is a user plane network element.

If the data stream is a downlink data stream, the user plane network element may process the data stream according to the first time information.

Optionally, the method further includes: the first device sending the first time information to one or more of the following: a terminal device, an access network device, or an application network element.

If the data stream is an uplink data stream, the first device can send the first time information to the access network device, so that the access network device can process the data stream based on the first time information.

Exemplarily, if the first device can also send the first time information to the terminal device, the terminal device can determine the time for processing the data stream according to the first time information. For example, the terminal device may determine the time for processing the data stream according to the first time information and the delay information of the data stream transmission in the system.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first device is a policy control network element, a session management network element, or an application network element.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the method further includes: the first device sending the first time information to an access network device and/or a user plane network element.

If the data stream is a downstream data stream, the first device may send the first time information to the user plane network element, and the user plane network element may process the data stream according to the first time information. If the data stream is an uplink data stream, the first device can send the first time information to the access network device, so that the access network device can process the data stream based on the first time information.

Further, the method further includes: the first device sending the first time information to a terminal device.

The terminal device may determine the time for processing the data stream according to the first time information. For example, the terminal device may determine the time for processing the data stream according to the first time information and the delay information of the data stream transmission in the system.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, in a case where the first device is a policy control network element, a session management network element, or a user plane network element, the method further includes: A device sends the first time information to the application network element.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first device determining the processing period of the data stream includes: the first device determines the processing period according to the first information, and the first device determines the processing period according to the first information. The information includes the jitter requirement of the data stream and/or the transmission delay requirement of the data stream, and the data stream is an aperiodic data stream.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first information further includes a scheduling period and/or a minimum period of the access network device, and the minimum period is a minimum processing period supported by the system.

In a fifth aspect, a method for processing a data stream is provided, including: a first device acquires first time information, where the first time information includes the jitter time and the time when a packet of the data stream arrives at the first device The first time when the packet of the data flow arrives at the first device in the period, or the first time information includes the second time when the packet of the data flow arrives at the first device at the latest in the period Time, or, the first time information includes the third time when the first device processes the packets of the data stream in the period; The received packet of the data stream is processed at a time, and the third time is at least later than the first time.

According to the method for data processing flow provided in this application, the first device can process the received data flow packets at the third time in each cycle according to the first time information, because the packets are processed in each cycle The time is the same, so the jitter of the message can be reduced or even eliminated.

With reference to the fifth aspect, in some implementations of the fifth aspect, the third time is later than the second time, or the third time is determined according to the jitter time, or the first The three moments are equal to the moment obtained by adding the jitter time to the first moment.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the acquiring, by the first device, the first time information includes: the first device receiving part or part of the first time information from a control plane network element all content.

Exemplarily, the control plane network element is a session management network element or an application network element.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the data stream is a downlink data stream, and the first device is a user plane network element or an access network device.

With reference to the fifth aspect, in some implementations of the fifth aspect, the first device is the user plane network element; the method further includes: the first device sends second time information to the control plane network element , The second time information includes one or more of the following: the jitter time, the first time, the second time, the third time, and the second time information is used for The control plane network element determines the time when the packet of the data flow reaches the access network device and/or the jitter time when it reaches the access network device, and/or determines that the terminal device processes the The time of the packet of the data stream.

Based on this solution, the control plane network element can send the determined time when the packet of the data flow arrives at the access network device and/or the jitter time when it reaches the access network device to the access network device, thereby accessing The network equipment can process the packets of the data stream within the period according to the information, which is beneficial to further reduce the jitter of the data stream.

With reference to the fifth aspect, in some implementations of the fifth aspect, the first device is the access network device; the method further includes: the first device sends third time information to the control plane network element , The third time information includes one or more of the following: the jitter time, the first time, the second time, the third time, and the third time information is used for all The control plane network element determines the time when the terminal device processes the packet of the data stream in a period.

Based on this solution, the control plane network element can send the determined time when the terminal device processes the packet of the data stream in the period to the terminal device, so that the terminal device can receive the packet of the data stream according to the information.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the data stream is an uplink data stream, and the first device is an access network device or a terminal device.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the first device is the terminal device; the method further includes: the first device sends fourth time information to the control plane network element, so The fourth time information includes one or more of the following: the jitter time, the first time, the second time, the third time, and the fourth time information is used for the control The plane network element determines the time when the terminal device sends the packet of the data stream in the period, and/or determines the time when the user plane network element sends the packet of the data stream in the period.

Based on this method, the control plane network element can determine the time when the terminal device sends the data stream packet in the period, and/or determine the user plane network element to send the data stream packet in the period. The time of the message is sent to the access network device, so that the access network device can send the message of the data stream based on this information, which is beneficial to further reduce the jitter of the data stream.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the first device is the access network device; the method further includes: the first device sends a fifth Time information, the fifth time information includes one or more of the following: the jitter time of the terminal device sending the packet of the data stream, and the time of the terminal device sending the packet of the data stream The time when the terminal device sends the packet of the data stream at the latest, and the fifth time information is used by the control plane network element to determine that the user plane network element sends the packet of the data stream within a period The moment.

Based on this method, the control plane network element can send the determined user plane network element to the user plane network element at the time when the message of the data flow is sent in the cycle, so that the user plane network element can perform the data flow based on this information. Sending of messages.

In a sixth aspect, a method for processing a data stream is provided, which is characterized by comprising: a control plane network element acquiring first time information, where the first time information includes the jitter of a packet of the data stream arriving at a first device The time and the first moment when the packet of the data flow arrives at the first device in the period, or the first time information includes that the packet of the data flow arrives at the first device at the latest in the period Or, the first time information includes the third time when the first device processes the packets of the data stream in the period; the control plane network element sends the first device to the first device Time information, where the first time information is used by the first device to process the received packet of the data stream at the third time, and the third time is at least later than the first time.

According to the method for data processing flow provided in this application, the first device can process the received data flow packets at the third time in each cycle according to the first time information provided by the control plane network element. The time for processing the message in each cycle is the same, so the jitter of the message can be reduced or even eliminated.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the third time is later than the second time, or the third time is determined according to the jitter time, or the third time The time is equal to the time obtained by adding the jitter time to the first time.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the data stream is a downlink data stream, and the first device is a user plane network element or an access network device.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the first device is the user plane network element; and, the method further includes: the control plane network element determines the network element according to the second time information The time when the packet of the data stream arrives at the access network device and/or the jitter time when it arrives at the access network device, and/or the time when the terminal device processes the packet of the data stream in a cycle, Wherein, the second time information includes one or more of the following: the jitter time, the first time, the second time, and the third time; The access network device sends the determined data stream at the time when the message arrives at the access network device and/or the jitter time when it arrives at the access network device, and/or sends all the packets to the terminal device. The determined time when the terminal device processes the packet of the data stream in the period.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the second time information is received by the control plane network element from the first device.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the first device is the access network device; and the method further includes: the control plane network element determines the terminal according to the third time information The time at which the device processes the packet of the data stream in the cycle, where the third time information includes one or more of the following: the jitter time, the first time, and the second time The third moment; the moment when the control plane network element sends the determined packet of the terminal device to process the data stream in the period to the terminal device.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the third time information is received by the control plane network element from the first device.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the data stream is an uplink data stream, and the first device is an access network device or a terminal device.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the first device is the terminal device; and, the method further includes: the control plane network element determines the terminal according to fourth time information The time at which the device sends the packet of the data stream in the period, and/or the time at which the user plane network element sends the packet of the data stream in the period is determined, wherein the fourth time information includes the following One or more of the above: the jitter time, the first time, the second time, the third time; the control plane network element sends the determined all the time to the access network device The time at which the terminal device sends the data stream packet in the period, and/or sends the determined user plane network element to the user plane network element to send the data stream packet in the period time.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the fourth time information is received by the control plane network element from the first device.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the first device is the access network device; and, the method further includes: the control plane network element determines the location based on the fifth time information The time at which the user plane network element sends the packet of the data stream in a period, wherein the fifth time information includes one or more of the following: the terminal device sends the packet of the data stream The jitter time of the data stream, the time when the terminal device sends the packet of the data stream, and the time when the terminal device sends the packet of the data stream at the latest; the control plane network element sends the determined time to the user plane network element The time at which the user plane network element sends the packet of the data stream within the period.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the fifth time information is received by the control plane network element from the first device.

In a seventh aspect, a communication device is provided, including a module or unit for executing the method in the first aspect to the sixth aspect, or any possible implementation of the first aspect to the sixth aspect.

In an eighth aspect, a communication device is provided, including: an input circuit, an output circuit, and a processing circuit. The processing circuit is used to receive a signal through the input circuit, and output a signal through the output circuit, so that the communication device executes the above first aspect to the sixth aspect, or any possible implementation of the first aspect to the sixth aspect method.

In a specific implementation process, the aforementioned communication device may be a chip, the input circuit may be an input interface, the output circuit may be an output interface, and the processing circuit may be a central processing unit (CPU), etc. The input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by the transmitter, and the input interface and output The interface may be an integrated input and output interface, which is used as an input interface and an output interface at different times. The embodiments of the present application do not limit the specific implementation manners of the communication device and various circuits or interfaces.

In a ninth aspect, a communication device is provided, including a processor and a memory. The processor is configured to read instructions stored in the memory to execute the methods in the first aspect to the sixth aspect, or any possible implementation manner of the first aspect to the sixth aspect.

Optionally, there are one or more processors and one or more memories.

Optionally, the memory may be integrated with the processor, or the memory and the processor may be provided separately.

In the specific implementation process, the memory can be a non-transitory (non-transitory) memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be set in different On the chip, the embodiment of the present application does not limit the type of the memory and the setting mode of the memory and the processor.

Optionally, the passing device may further include a transceiver, and the transceiver may be used to receive signals and send signals.

The communication device in the aforementioned ninth aspect may be a chip, and the processor may be implemented by hardware or software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software, When implemented, the processor may be a general-purpose processor, which is implemented by reading software codes stored in the memory. The memory may be integrated in the processor, may be located outside the processor, and exist independently.

In a tenth aspect, a computer program product is provided. The computer program product includes a computer program (also called code, or instruction). The method in any possible implementation manner of the first aspect to the sixth aspect is executed.

In an eleventh aspect, a readable storage medium is provided, on which a computer program (also called code, or instruction) is stored. When the computer program or instruction is executed, the first aspect to the sixth aspect are , Or the method in any possible implementation manner of the first aspect to the sixth aspect is executed.

Description of the drawings

Figure 1 is an architecture diagram of a system that can be applied to this application.

Figure 2 is a schematic diagram of a 5G system architecture that can be applied to the present application.

Figure 3 is a schematic diagram of a TSN network centralized management architecture.

Figure 4 is a schematic diagram of the architecture of a 5G system for deterministic transmission.

Fig. 5 is a schematic flowchart of a method for processing a data stream provided by the present application.

Fig. 6 is a schematic diagram of sending a data message provided by the present application.

Fig. 7 is a schematic flowchart of a method for processing a data stream provided by the present application.

Fig. 8 is a schematic flowchart of a method for processing a data stream provided by the present application.

Fig. 9 is a schematic flowchart of a method for processing a data stream provided by the present application.

Fig. 10 is a schematic flowchart of a method for processing a data stream provided by the present application.

Fig. 11 is a schematic flowchart of a method for processing a data stream provided by the present application.

Fig. 12 is a schematic flowchart of a method for processing a data stream provided by the present application.

FIG. 13 is a schematic flowchart of a method for processing a data stream provided by the present application.

FIG. 14 is a schematic flowchart of a method for processing a data stream provided by the present application.

FIG. 15 is a schematic flowchart of a method for processing a data stream provided by the present application.

FIG. 16 is a schematic flowchart of another method for processing a data stream provided by the present application.

FIG. 17 is a schematic flowchart of another method for processing a data stream provided by the present application.

FIG. 18 is a schematic flowchart of another method for processing a data stream provided by the present application.

FIG. 19 is a schematic flowchart of another method for processing a data stream provided by the present application.

FIG. 20 is a schematic flowchart of another method for processing a data stream provided by the present application.

FIG. 21 is a schematic flowchart of another method for processing a data stream provided by the present application.

FIG. 22 is a schematic diagram of the structure of the communication device provided by the present application.

FIG. 23 is another schematic diagram of the structure of the communication device provided by the present application.

Detailed ways

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: long term evolution (LTE) system, fifth generation (5G) system, new radio (NR) or possible future Other communication systems etc. appear.

Fig. 1 shows an architecture diagram of a system 100 that can be applied to the present application. As shown in Figure 1, the system 100 may include one or more of the following devices: terminal device 101, access network element 102, user plane network element 103, data network 104, access and mobility management network element 105 , Session management network element 106, policy control network element 107, application network element 108, unified data management network element 109, and network opening network element 110.

Terminal equipment 101: can be user equipment (UE), user, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device , User agent or user device. For example, it can be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial control (industrial control) Wireless terminals in ), wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, and wireless terminals in transportation safety , Wireless terminals in smart cities, wireless terminals in smart homes, etc. The terminal device 110 may also be a device or a circuit structure provided in the foregoing various devices, for example, a chip or a chip system.

The access network element 102: can manage wireless resources, provide access services for the terminal device, and then complete the forwarding of control signals and user data between the terminal device and the core network.

The access network element 102 may be a transmission reception point (TRP), an evolved base station (evolved NodeB, eNB, or eNodeB) in an LTE system, or a home base station (for example, home evolved NodeB, Or home Node B, HNB), baseband unit (BBU), or wireless controller in the cloud radio access network (CRAN) scenario, or the access network device can be a relay station , Access points, in-vehicle devices, wearable devices, and access network equipment in 5G networks or access network equipment in the future evolution of the land mobile network (public land mobile network, PLMN) network, etc., which can be WLAN The access point (access point, AP) in may be a gNB in a new radio system (new radio, NR) system, which is not limited in this embodiment of the application. In a network structure, the access network device may include a centralized unit (CU) node, or a distributed unit (DU) node, or an access network device including a CU node and a DU node, or a control plane CU node (CU-CP node), user plane CU node (CU-UP node) and access network equipment of DU node.

User plane network element 103: Mainly responsible for processing user messages, such as forwarding and charging.

Data network 104: An operator network that provides users with data transmission services, such as IP Multi-media Service (IMS), Internet, and so on.

Access and mobility management network element 105: Mainly responsible for mobility management in the mobile network, such as user location update, user registration network, user handover, and so on.

Session management network element 106: Mainly responsible for session management in the mobile network, such as session establishment, modification, and release. Specific functions include assigning IP addresses to users and selecting user plane network elements that provide message forwarding functions.

Policy control network element 107: Responsible for providing policies to access and mobility management network elements and session management network elements, such as quality of service (QoS) policies, slice selection policies, etc.

Application network element 108: Responsible for providing services to the 3GPP network, interacting with policy control network elements for policy control, etc.

Unified data management network element 109: used to store user data, such as subscription information, authentication/authorization information.

Network opening network element 110: Provides a framework, authentication, and interface related to network capability opening, and transfers information between 5G system network functions and other network functions.

It should be understood that each of the above-mentioned devices or network elements may be devices with corresponding functions, and may be software/hardware modules (such as chips) inside the devices. It should also be understood that any device or network element involved in this application can be implemented in the form of software or a combination of software and hardware.

In an example, the system 100 shown in FIG. 1 may be the 5G system shown in FIG. 2. It should be understood that the system 100 may also be a 4G system or other systems, which is not limited in this application.

Figure 2 is a schematic diagram of the 5G system architecture. In the system architecture diagram, the network elements with the same reference numerals as those in FIG. 1 are the names of the corresponding network elements in FIG. 1 in the current 5G system. Referring to Figure 2, the 5G system architecture may include one or more of the following network elements: UE 101, (radio) access network ((radio) access network, (R) AN) 102, user plane function, UPF) 103, data network (DN) 104, access and mobility management function (AMF) 105, session management function (Session Management Function, SMF) 106, policy control function (policy control) function, PCF) 107, application function (AF) 108, unified data management (UDM) 109, and network exposure function (network exposure function) 110.

It should be understood that the naming of each network element shown in FIG. 2 is only a name, and the name does not limit the function of the network element itself. In different networks, the aforementioned network elements may also have other names, which are not specifically limited in the embodiment of the present application. For example, in a 6G network, some or all of the above-mentioned network elements can use the terminology in 5G, or they may be named in other ways, etc., which are explained here in a unified manner, and will not be repeated in the following. Similarly, the interface between network elements shown in Figure 2 is only an example. In 5G networks and other networks in the future, the interfaces between network elements may not be the interfaces shown in the figure. limited.

It should also be understood that the embodiment of the present application is not limited to the system architecture shown in FIG. 2. For example, the communication system to which this application can be applied may include more or fewer network elements or devices. The device or network element in Figure 2 can be hardware, software that is functionally divided, or a combination of the two. The devices or network elements in Figure 2 can communicate with other devices or network elements.

In the implementation of traditional Ethernet network forwarding, when a large number of data packets arrive at the forwarding port in an instant, it will cause the problem of long forwarding delay or packet loss. Therefore, traditional Ethernet cannot provide services with high reliability and guaranteed transmission delay. Unable to meet the needs of automotive control, industrial Internet and other fields. In response to the demand for reliable delay transmission, the IEEE defines a delay-sensitive network (TSN) standard, which is based on Layer 2 switching to provide reliable delay transmission services to ensure the reliability of delay-sensitive business data transmission, and Predictable end-to-end transmission delay.

The TSN network is based on Layer 2 transmission and includes TSN switching nodes (or also known as TSN Bridge) and TSN endpoints (end stations or endpoints). Different from the two-layer forwarding, the TSN switching node does not forward the message according to MAC learning, but forwards it through the forwarding rules configured or created on the TSN switching node. The TSN stream is a one-way stream. For a TSN stream, the TSN endpoints are divided into a sender (Talker) and a receiver (Listener). The TSN standard defines the behavior of TSN switching nodes and TSN endpoints, as well as the scheduling method for TSN switching nodes to forward data streams, so as to achieve reliable delay transmission. The TSN switching node uses the destination MAC address of the message as the identifier of the data flow, and performs resource reservation and scheduling planning according to the delay requirements of the service flow, thereby ensuring reliability and transmission delay according to the generated scheduling strategy.

The TSN standard 802.1QCC defines the TSN network centralized management architecture. Figure 3 shows a schematic diagram of the TSN network centralized management architecture. Referring to Figure 3, the architecture includes TSN endpoints (Talker/Listener), TSN switching nodes, and control plane network elements. The control plane network elements include centralized user configuration (CNC) and centralized network configuration (CUC) . in:

The TSN endpoint is the sender or receiver of the data stream;

The TSN switching node reserves resources for data streams according to the definition of the TSN network, and schedules and forwards data packets;

The CNC manages the topology of the TSN network user plane and the capability information of the TSN switching node (such as the transmission delay of the TSN switching node, the internal processing delay between the TSN switching node ports), and generates the data stream according to the stream creation request provided by the CUC The forwarding path and the processing strategy on the TSN endpoint and each TSN switching node (such as the port for sending and receiving messages, time slice), and then the processing strategy on the TSN switching node is issued to the corresponding TSN switching node;

CUC is used to collect stream creation requests from TSN endpoints. After matching the Talker and Listener requests, it requests the CNC to create a data stream and confirms the processing strategy generated by the CNC.

In order to realize end-to-end deterministic transmission of users, the 5G system (5G system, 5Gs) defines the architecture shown in Figure 4. Referring to Figure 4, 5Gs is simulated as a switching node in the TSN network (hereinafter referred to as 5Gs switching node), which implements the node function of TSN switching, thereby realizing end-to-end deterministic transmission in the TSN network including 5Gs. Among them, AF adapts 5Gs information to TSN switching node information, interacts with CNC, and sends information issued by CNC to 5Gs via 5Gs. User plane TSN Translator (Device) (DS-TT in the following) and TSN Translator (UP) (NW-TT in the following) are the logical functions of the 5Gs user plane, used to implement the external features of TSN switching nodes, such as topology discovery , Realize CNC scheduling rules, etc. DS-TT can be deployed together with the UE or independently. Similarly, NW-TT can be deployed with UPF or independently.

5Gs provides deterministic transmission capabilities, realized by AF shielding external applications, and provides deterministic transmission requirements for 5Gs, and 5Gs provides deterministic transmission for applications.

In the current technology, the data stream requirements provided by AF to PCF (AF directly or through NEF to PCF) are proposed, which mainly include AF directly or through NEF to PCF: the delay of data stream in 5Gs (5Gs delay), data stream Jitter requirements in 5Gs (5Gs Jitter), guaranteed rate, flow direction, time when the flow reaches 5Gs (for example, the time when the upstream reaches the UE/DS-TT, or the time when the downstream reaches the UPF/NW-TT), burst Flow size, burst flow period, end-to-end delay (e2e delay), clock domain information, flow description information (flow characteristics, such as the destination MAC address of the data flow, etc.), UE identification (such as GPSI, UE MAC Address, etc.), this information is used for deterministic transmission of 5GS. For different types of data streams, the information provided is different. For example, for periodic data streams, information such as burst period and burst stream size will be provided.

For non-periodic streams, if 5Gs receives the data stream and reshapes it into a periodic stream to send, it will be able to implement deterministic transmission according to the periodic stream mechanism, simplifying the implementation of 5Gs.

When the deterministic transmission capability of 5Gs is opened, for aperiodic streams, how to determine the period when 5Gs performs periodic processing on aperiodic data streams is not covered by the current technology. In addition, for periodic streams and non-periodic streams using periodic transmission, how to determine the time information of the data stream arriving at and/or sent from the 5Gs is not covered by the current technology.

In order to solve the first problem, this application provides a method for processing data streams. The first device (eg, PCF, SMF, UPF, AF) can respond to the jitter requirements and/or transmission of aperiodic data streams. The delay requirement is to determine the period when the non-periodic data stream is periodically processed, so that the periodic transmission of the non-periodic data stream can be realized. To solve the second problem, this application provides another method for processing data streams. The first device (eg, PCF, SMF, UPF, AF) can determine the data stream to reach the system according to the processing cycle of the data stream ( For example, 5Gs) and/or time information sent from the 5Gs system, so as to achieve deterministic transmission of data streams.

The two methods are described below. It should be understood that the method of the present application can be applied to a 5G system, and can also be applied to other systems, such as 4G or other systems that may appear in the future.

Fig. 5 is a schematic flowchart of a method for processing a data stream provided by the present application. The method 200 will be described below.

S210: The first device obtains first information.

Optionally, the first device may be any one of the following: a policy control network element, a session management network element, a user plane network element, and an application network element.

The first information includes the jitter requirement of the data stream and/or the transmission delay requirement of the data stream, and the data stream is an aperiodic data stream.

Among them, the jitter requirement of the data stream may be the jitter requirement during end-to-end transmission of the data stream, or the jitter requirement during transmission of the data stream in the system. The jitter requirement of the data stream can specifically be the length of time, such as 1ms, or the percentage of the transmission delay requirement of the data stream, such as 50%, which means that the jitter requirement of the data stream is 50% of the transmission delay requirement of the data stream. %. This application does not limit the specific form.

The transmission delay requirement of the data stream may be the transmission delay requirement of the data stream on the system, or the end-to-end transmission delay requirement of the data stream. Similarly, the transmission delay requirement of a data stream can specifically be the length of time, such as 1ms, or a percentage of the jitter requirement of the data stream, such as 150%, which means that the transmission delay requirement of the data stream is the jitter of the data stream. 150% of demand.

It should be understood that in this application, the system refers to the 3GPP system where the first device is located, such as 5Gs.

It should also be understood that the data stream may be an upstream data stream or a downstream data stream. Downlink data stream refers to a data stream sent from an end point of the TSN network to a user plane network element, and sent to a terminal device (such as UE) via the user plane network element, and finally sent from the terminal device to another end point of the TSN network . Uplink data flow refers to a data flow sent from an endpoint of the TSN network to a terminal device, and sent to a user plane network element via the terminal device, and finally sent by the user plane network element to another endpoint of the TSN network.

Optionally, the first information may also include the scheduling period of the access network device, and/or the minimum period.

Scheduling period of the access network device: indicates the period during which the access network device uses the scheduling strategy to send/receive packets. The access network device may send its scheduling period to the first device.

Referring to Figure 6, in each scheduling period (for example, slot=500μs), the access network device sends data packets that arrive in the scheduling period before the scheduling reservation. If the priority of the packet is high, it will be in the transmission period. It was sent out soon. Regardless of whether the high-priority stream arrives at time t1 or at time t2 in the figure, the difference in the time it is finally sent is not large. Therefore, when determining the following processing period, you can refer to the scheduling period of the access network device.

Minimum cycle: The minimum processing cycle supported by the system. The minimum period may be determined by the first device, or the minimum period may be configured on the first device, or the minimum period may be determined by another device and sent to the first device.

S220: The first device determines a processing period according to the first information.

The processing period is the period in which the data stream is periodically processed. The periodic processing can be understood as one or more of the following: periodically reading the message corresponding to the data stream from the receiving queue; periodically placing the message corresponding to the data stream into the receiving queue And/or sending queue; periodically sending the packets corresponding to the data flow out of the outgoing interface.

Exemplarily, the processing period may be less than or equal to the transmission delay requirement of the data stream. Or, the processing period is less than or equal to the jitter requirement of the data stream. For example, if the jitter requirement of the data stream is 5 ms, the processing period is less than or equal to 5 ms or 2.5 ms. Or, the current period is equal to the scheduling period of the access network device, or an integer multiple of the scheduling period of the access network device.

In the following, description will be made on several different situations where the first device is a policy control network element, a session management network element, a user plane network element, and an application network element.

1. The first device is a policy control network element

This will be described with reference to FIG. 7. Refer to FIG. 7, which is a schematic flowchart of a method 300 for processing a data stream provided by the present application. The method 300 is a specific example of the method 200.

S301: The policy control network element obtains the jitter requirement of the data stream and/or the transmission delay requirement of the data stream from the application network element.

That is, the application network element determines the jitter requirement of the data stream and/or the transmission delay requirement of the data stream, and sends it to the policy control network element. The application network element can directly send the jitter demand of the data stream and/or the transmission delay demand of the data stream to the policy control network element, or can send the jitter demand of the data stream and/or the data stream to the policy control network element through the network opening network element. The transmission delay requirement of the data stream. Among them, the application network element may determine the jitter requirement of the data stream and/or the transmission delay requirement of the data stream according to the type or requirement of the application.

In addition to obtaining the jitter requirement of the data stream and/or the transmission delay of the data stream from the application network element, the policy control network element can also obtain the jitter requirement of the data stream and/or the transmission delay of the data stream in the following ways: (1) The policy control network element determines the jitter requirement of the data stream and/or the transmission delay requirement of the data stream according to the identification information of the QoS used to forward the data stream. The identification information of the QoS flow may be 5QI, for example. (2) The strategy control network element is configured with the jitter requirement of the data stream and/or the transmission delay requirement of the data stream.

S302: The policy control network element obtains the scheduling period of the access network device from the access network device.

S303: The policy control network element obtains the minimum period.

The minimum period may be determined by the policy control network element, or the minimum period may be configured on the policy control network element. Or, the minimum period may be acquired by the session management network element and sent to the policy control network element. The method for the session management network element to obtain the minimum period can be: (1) The session management network element determines the minimum period. For example, the session management network element can determine the minimum period based on local configuration and/or policies; (2) The session management network element receives from users The minimum period of the plane network element or the terminal device, that is, after the user plane network element or the terminal device determines the minimum period, the minimum period is sent to the session management network element, and then the session management network element is sent to the policy control network element.

It should be understood that S302 and S303 are optional steps.

S304: The policy control network element determines a processing period according to the first information.

That is, the policy control network element determines the processing period according to the information obtained in the above-mentioned various steps. For this step, refer to S220, which will not be repeated here.

S305: The policy control network element sends the processing period to one or more of the following devices: the terminal device, the access network device, or the user plane network element.

When the data flow is a downlink data flow, the policy control network element may send the processing period to the user plane network element. The user plane network element may periodically process the packet corresponding to the data flow according to the processing cycle. For example, the user plane network element may periodically send the packet corresponding to the data flow to the access network device in the processing period.

Optionally, the policy control network element may also send the processing period to the terminal device and/or the access network device. After receiving the processing period, the terminal device and/or the access network device may periodically process the packet corresponding to the data stream according to the processing period. For example, the access network device periodically schedules and sends the packet corresponding to the data stream to the terminal device according to the processing period; the terminal device periodically forwards the packet corresponding to the data stream according to the processing period.

When the data flow is an uplink data flow, the policy control network element may send the processing period to the access network device. The access network device may periodically process the packet corresponding to the data flow according to the processing period. For example, the access network device may periodically send the packet corresponding to the data flow to the user plane network element in the processing period.

Optionally, the policy control network element may also send the processing period to the terminal device and/or the user plane network element. After receiving the processing period, the terminal device and/or the user plane network element may periodically process the packet corresponding to the data stream according to the processing period. For example, the terminal device may periodically send the packet corresponding to the data stream to the access network device in the processing period; the user plane network element may periodically forward the packet to the data network (for example, DN) in the processing period. The packet corresponding to the data stream.

Optionally, the method may further include one or more of the following steps.

S306: The policy control network element sends instruction information to one or more of the following devices: terminal device, access network device, or user plane network element. Wherein, the indication information is used to indicate that the processing period is used to process the received data stream.

It should be understood that if the policy control network element only sends the processing period and does not send the indication information, the processing period is used to process the data stream by default.

Exemplarily, the policy control network element may first send the processing period and/or the instruction information to the session management network element through a policy and charging control (PCC) rule (PCC) rule creation or modification process. The session management network element may send the processing period and/or the indication information to the user plane network element, the access network device and/or the terminal device through the session creation or modification process.

S307: The policy control network element sends the processing period to the application network element. Wherein, the processing period is used for the application network element to process the data stream.

After receiving the periodic processing, the application network element may periodically process the packet corresponding to the data flow according to the processing period, or may predict the arrival time of the packet corresponding to the data flow.

It should be understood that the policy control network element may send the processing period to the application network element directly or through a network open network element.

Based on the above technical solution, the policy control network element can determine the period during which the aperiodic data stream is periodically processed according to the jitter requirement of the aperiodic data stream and/or the transmission delay requirement of the aperiodic data stream. In addition, the policy control network element sends the processing period to the user plane network element, the access network device and/or the terminal device, so that the user plane network element, the access network device and/or the terminal device can respond to the processing period based on the processing period. The aperiodic data stream is processed periodically to realize the periodic transmission of the aperiodic data stream.

2. The first device is a session management network element

This will be described with reference to FIG. 8. Referring to FIG. 8, FIG. 8 is a schematic flowchart of a method 400 for processing a data stream provided by the present application. The method 400 is a specific example of the method 200.

S401: The policy control network element sends the jitter requirement of the data stream and/or the transmission delay of the data stream to the session management network element.

The policy control network element first obtains the jitter requirement of the data stream and/or the transmission delay of the data stream, and then sends the obtained jitter requirement of the data stream and/or the transmission delay of the data stream to the session management network element. Regarding how the policy control network element obtains the jitter requirement of the data stream and/or the transmission delay of the data stream, refer to the description in S301, which will not be repeated here.

S402: The session management network element obtains the scheduling period of the access network device from the access network device.

S403: The session management network element obtains the minimum period.

The method for the session management network element to obtain the minimum period may be as follows: (1) The session management network element obtains the minimum period from the policy control network element. That is, the minimum period may be determined by the policy control network element, or the minimum period may be configured on the policy control network element. The policy control network element can send the minimum period to the session management network element. (2) The session management network element determines the minimum period. For example, the session management network element may determine the minimum period based on local configuration and/or policy. (3) The session management network element obtains the minimum period from the user plane network element or the terminal device. That is, the minimum period is determined by the user plane network element or the terminal device, or the minimum period is configured on the user plane network element or the terminal device. The user plane network element or the terminal device may send the minimum period to the session management network element.

It should be understood that S402 and S403 are optional steps.

S404: The session management network element determines a processing period according to the first information.

That is, the session management network element determines the processing period according to the information obtained in the above steps. For this step, refer to S220, which will not be repeated here.

S405: The session management network element sends the processing period to one or more of the following devices: terminal device, access network device, or user plane network element.

When the data flow is a downlink data flow, the session management network element may send the processing period to the user plane network element. The user plane network element may periodically process the packet corresponding to the data flow according to the processing period, for example, periodically send the packet corresponding to the data flow to the access network device.

Optionally, the session management network element may also send the processing period to the terminal device and/or the access network device. After receiving the processing period, the terminal device and/or the access network device may periodically process the packet corresponding to the data stream according to the processing period. For example, the access network device periodically schedules and sends the packet corresponding to the data stream to the terminal device according to the processing period; the terminal device periodically forwards the packet corresponding to the data stream according to the processing period.

When the data flow is an uplink data flow, the session management network element may send the processing period to the access network device. The access network device may periodically process the packet corresponding to the data flow according to the processing period. For example, the access network device may periodically send the packet corresponding to the data flow to the user plane network element according to the processing period.

Optionally, the session management network element may also send the processing period to the terminal device and/or the user plane network element. After receiving the processing period, the terminal device and/or the user plane network element may periodically process the packet corresponding to the data stream according to the processing period. For example, the terminal device may periodically send the packet corresponding to the data stream to the access network device according to the processing period; the user plane network element may periodically forward the packet to the data network (for example, DN) according to the processing period The message corresponding to the data stream.

Optionally, the method may further include one or more of the following steps.

S406: The session management network element sends instruction information to one or more of the following devices: terminal device, access network device, or user plane network element. Wherein, the indication information is used to indicate that the processing period is used to process the data stream.

It should be understood that if the session management network element only sends the processing period and does not send the indication information, the processing period is used to process the received aperiodic data stream by default.

Exemplarily, the call management network element may send the processing period and/or the indication information to the user plane network element, the access network device, and/or the terminal device through a session creation or modification process.

S407: The session management network element sends the processing period to the application network element. Wherein, the processing period is used for the application network element to process the data stream.

The session management network element may first send the period processing to the policy control network element, and then the policy control network element sends the processing period to the application network element. After receiving the periodic processing, the application network element may periodically process the packet corresponding to the data flow according to the processing period, or may predict the arrival time of the packet corresponding to the data flow.

Based on the above technical solution, the session management network element can determine the period during which the aperiodic data stream is periodically processed according to the jitter requirement of the aperiodic data stream and/or the transmission delay requirement of the aperiodic data stream. In addition, the session management network element sends the processing period to the user plane network element, the access network device, and/or the terminal device, so that the user plane network element, the access network device, and/or the terminal device can respond to the processing period based on the processing period. The aperiodic data stream is processed periodically to realize the periodic transmission of the aperiodic data stream.

3. The first device is a user plane network element

This will be described with reference to FIG. 9. Refer to FIG. 9, which is a schematic flowchart of a method 500 for processing a data stream provided by the present application. The method 500 is a specific example of the method 200.

S501: The user plane network element obtains the jitter requirement of the data stream and/or the transmission delay of the data stream from the policy control network element.

The policy control network element may first obtain the jitter requirement of the data stream and/or the transmission delay of the data stream, and then send the obtained jitter requirement of the data stream and/or the transmission delay of the data stream to the session management network element, The session management network element is then sent to the user plane network element. Regarding how the policy control network element obtains the jitter requirement of the data stream and/or the transmission delay of the data stream, refer to the description in S301, which will not be repeated here.

S502: The user plane network element obtains the scheduling period of the access network device from the access network device.

S503: The user plane network element obtains a minimum period.

The user plane network element can obtain the minimum period in the following manner: (1) The user plane network element obtains the minimum period from the policy control network element. Wherein, the minimum period may be determined by the policy control network element, or the minimum period may be configured on the policy control network element. The policy control network element may send the minimum period to the session management network element, and then the session management network element sends it to the user plane network element. (2) The user plane network element obtains the minimum period session management network element from the session management network element. That is, the session management network element determines the minimum period and sends it to the user plane network element. For example, the session management network element may determine the minimum period based on local configuration and/or policy. (3) The user plane network element obtains the minimum period from the terminal device. For example, the terminal device may determine the minimum period, or the minimum period may be configured on the terminal device. The terminal device can send the minimum period to the user plane network element.

It should be understood that S502 and S503 are optional steps.

S504: The user plane network element determines a processing period according to the first information.

That is, the user plane network element determines the processing period based on the information obtained in the above steps. For this step, refer to S220, which will not be repeated here.

The user plane network element may periodically process the packets corresponding to the data flow according to the processing period. For example, if the data flow is an upstream data flow, the user plane network element may periodically process the packets in the processing period Forward the packet corresponding to the data stream to a data network (for example, a DN). If the data flow is a downlink data flow, the user plane network element may periodically send a packet corresponding to the data flow to the access network device and/or the terminal device in the processing cycle.

Optionally, the method may further include one or more of the following steps.

S505: The user plane network element sends the processing period to the terminal device and/or the access network device.

After receiving the processing period, the terminal device and/or the access network device may periodically process the packet corresponding to the data stream according to the processing period. For example, if the data stream is a downlink data stream, the access network device may periodically schedule and send packets corresponding to the data stream to the terminal device according to the processing period; the terminal device periodically according to the processing period Forward the message corresponding to the data stream. If the data stream is an uplink data stream, the access network device may periodically receive a packet corresponding to the data stream from the terminal device according to the processing period.

S506: The user plane network element sends instruction information to the terminal device and/or the access network device.

Wherein, the indication information is used to indicate that the processing period is used to process the received data stream.

It should be understood that if the user plane network element only sends the processing period without sending the indication information, the processing period is used to process the received aperiodic data stream by default.

S507: The user plane network element sends the processing period to the application network element. Wherein, the processing period is used for the application network element to process the data stream.

After the application network element receives the periodic processing, the application network element may periodically process the packet corresponding to the data flow according to the processing period, or may predict the arrival time of the packet corresponding to the data flow.

Based on the above technical solution, the user plane network element can determine the period during which the aperiodic data stream is periodically processed according to the jitter requirement of the aperiodic data stream and/or the transmission delay requirement of the aperiodic data stream. In addition, the user plane network element sends the processing period to the access network device and/or terminal device, so that the user plane network element, access network device, and/or terminal device can perform the aperiodic data flow based on the processing period. Perform periodic processing to realize periodic transmission of non-periodic data streams.

4. The first device is an application network element

This will be described with reference to FIG. 10. Refer to FIG. 10, which is a schematic flowchart of a method for processing a data stream 600 provided by the present application. The method 600 is a specific example of the method 200.

S601. The application network element determines the jitter requirement of the data stream and/or the transmission delay of the data stream.

S602: The application network element obtains the scheduling period of the access network device from the access network device.

S603: The application network element obtains the minimum period.

The way for the application network element to obtain the minimum period may be: (1) The application network element obtains the minimum period from the policy control network element. The minimum period may be determined by the policy control network element, or the minimum period may be configured on the policy control network element, and the policy control network element may send the minimum period to the application network element. (2) The application network element obtains the minimum period session management network element from the session management network element. That is, the session management network element determines the minimum period and sends it to the application network element. For example, the session management network element may determine the minimum period based on local configuration and/or policies. (3) The application network element obtains the minimum period from the terminal device or the user plane network element. For example, the terminal device or user plane network element may determine the minimum period, or the minimum period may be configured on the terminal device or user plane network element. The terminal device or the user plane network element can send the minimum period to the application network element.

It should be understood that S602 and S603 are optional steps.

S604: The application network element determines a processing period according to the first information.

That is, the application network element determines the processing period according to the information obtained in the above steps. For this step, refer to S220, which will not be repeated here.

S605: The application network element sends the processing period to one or more of the following devices: a terminal device, an access network device, or a user plane network element.

When the data flow is a downlink data flow, the application network element may send the processing period to the user plane network element. The user plane network element may periodically process the packet corresponding to the data flow according to the processing period, for example, periodically send the packet corresponding to the data flow to the access network device.

Optionally, the application network element may also send the processing period to the terminal device and/or the access network device. After receiving the processing period, the terminal device and/or the access network device may periodically process the packet corresponding to the data stream according to the processing period. For example, the access network device periodically schedules and sends the packet corresponding to the data stream to the terminal device according to the processing period; the terminal device periodically forwards the packet corresponding to the data stream according to the processing period.

When the data flow is an uplink data flow, the application network element may send the processing period to the access network device. The access network device may periodically process the packet corresponding to the data flow according to the processing period. For example, the access network device may periodically send the packet corresponding to the data flow to the user plane network element according to the processing period.

Optionally, the application network element may also send the processing period to the terminal device and/or the user plane network element. After receiving the processing period, the terminal device and/or the user plane network element may periodically process the packet corresponding to the data stream according to the processing period. For example, the terminal device may periodically send the packet corresponding to the data stream to the access network device according to the processing period; the user plane network element may periodically forward the packet to the data network (for example, DN) according to the processing period The message corresponding to the data stream.

S606: The application network element sends instruction information to one or more of the following devices: terminal equipment, access network equipment, or user plane network element.

It should be understood that if the application network element only sends the processing period and does not send the indication information, the processing period is used to process the received aperiodic data stream by default.

Based on the above technical solution, the application network element can determine the period during which the aperiodic data stream is periodically processed according to the jitter requirement of the aperiodic data stream and/or the transmission delay requirement of the aperiodic data stream. In addition, the application network element sends the processing period to the user plane network element, access network device, and/or terminal device, so that the user plane network element, access network device, and/or terminal device can perform the processing cycle based on the processing period. Periodic data streams are processed periodically to realize periodic transmission of non-periodic data streams.

The following describes another method for processing a data stream provided by this application. It should be noted that the method and method 200 can be used separately or in combination.

FIG. 11 is a schematic flowchart of another method for processing a data stream provided by the present application. The method 700 will be described below.

S710: The first device determines a processing period of the data stream.

Wherein, the data stream is an aperiodic data stream, and the processing period is a period in which the aperiodic data stream is periodically processed. Alternatively, the data stream is a periodic data stream, and the processing period is a sending period of the periodic data stream.

For how the first device determines the processing period of the aperiodic data stream, refer to the methods described above, which will not be repeated here. The processing cycle of the periodic data stream can be provided by the application network element.

Optionally, the first device may be any one of the following: a user plane network element, a policy control network element, a session management network element, or an application network element.

S720: The first device determines first time information according to the processing period.

Among them, the first time information is the time information for the system to process the data stream. For example, the time information for the system to process the data stream may include one or more of the following: the system reads the message corresponding to the data stream from the receiving queue; the system places the message corresponding to the data stream Into the receiving queue and/or sending queue; the system sends the message corresponding to the data flow out of the outgoing interface.

Exemplarily, if the data stream is a downstream data stream, the first device may obtain the scheduling capability of the user plane network element (for example, the supported scheduling algorithm), the port through which the user plane network element receives the data stream, and the existing data on the port The processing period and arrival time information of the stream, the existing data stream and the data volume of the data stream (that is, the current data stream) in the processing period, etc., determine the first time information according to the above-mentioned acquired information. If the data stream is an upstream data stream, the first device can obtain the scheduling capability of the terminal device (for example, the supported scheduling algorithm), the port through which the terminal device receives the data stream, and the processing period and arrival time information of the existing data stream on the port , The existing data stream and the data volume of the data stream (that is, the current data stream) in the processing cycle, etc., determine the first time information according to the acquired information.

The following describes four situations where the first device is a user plane network element, a policy control network element, a session management network element, and an application network element.

1. The first device is a policy control network element

This will be described with reference to FIG. 12. FIG. 12 is a schematic flowchart of a method 800 for processing a data stream provided by the present application, and the method 800 is a specific example of the method 700.

S801: The policy control network element determines the processing period of the data stream.

For this step, refer to S710, which will not be repeated here.

S802: The policy control network element determines the first time information according to the processing period.

For this step, refer to S720, which will not be repeated here.

The following steps are respectively described for the two cases where the data stream is a downlink data stream and an uplink data stream.

(1) The data stream is a downstream data stream

The method may also include:

S803: The policy control network element sends the first time information to the user plane network element.

The user plane network element may process the data stream according to the first time information. For example, the first time information indicates the first time, and the user plane network element can read the packet corresponding to the data flow from the receiving queue from the first time, or put the packet corresponding to the data flow into the receiving queue / Send queue.

Optionally, the method may further include:

S804: The policy control network element sends the first time information to the terminal device and/or the access network device.

The access network device and/or the terminal device may determine the time for processing the data stream according to the first time information, for example, determine the time for reading the packet corresponding to the data stream from the receiving queue. For example, the access network device and/or the terminal device may determine the time to process the data stream according to the first time information and the transmission delay of the data stream in the system.

(2) The data stream is an upstream data stream

The method may also include:

S805: The policy control network element sends the first time information to the access network device.

The access network device may process the data stream according to the first time information. For example, the first time information indicates the first time, and the access network device can read the packet corresponding to the data stream from the receiving queue from the first time, or put the packet corresponding to the data stream into the receiving queue / Send queue.

Optionally, the method may further include:

S806: The policy control network element sends the first time information to the user plane network element and/or the terminal device.

The user plane network element and/or the terminal device may determine the time for processing the data stream according to the first time information, for example, determine the time for reading the packet corresponding to the data stream from the receiving queue. For example, the user plane network element and/or the terminal device may determine the time for processing the data stream according to the first time information and the transmission delay of the data stream in the system.

In an example, the method may further include:

S807: The policy control network element sends the first time information to the application network element.

The first time information can be used to assist the equipment in the external network to perform deterministic transmission, for example, according to the time information of the data stream received by the system and external equipment and systems (for example, in the downstream, between the equipment in the DN and the user plane network element) Time), determine the time window for processing the message on the external device (for example, for the downlink message, determine the time window for the device in the DN to send the message).

According to the method provided in this application, the policy control network element can determine the time information for the system to process the data stream according to the processing period of the data stream. By providing the determined time information to the user plane network element and/or the access network device, the user plane network element and/or the access network device can perform deterministic transmission according to the time information. Further, by providing the determined non-time information to the external network and application, the external network and application can realize deterministic transmission without relying on the planning and scheduling of other control network elements.

2. The first device is a session management network element

This will be described with reference to FIG. 13. FIG. 13 is a schematic flowchart of a method 900 for processing a data stream provided by the present application, and the method 900 is a specific example of the method 700.

S901: The session management network element determines the processing period of the data stream.

For this step, refer to S710, which will not be repeated here.

S902: The session management network element determines first time information according to the processing period.

For this step, refer to S720, which will not be repeated here.

(1) The data stream is a downstream data stream

The method can include:

S903: The session management network element sends the first time information to the user plane network element.

Optionally, the method may further include:

S904: The session management network element sends the first time information to the terminal device and/or the access network device.

The access network device and/or the terminal device may determine the time for processing the data stream according to the first time information, for example, determine the time for reading the packet corresponding to the data stream from the receiving queue.

(2) The data stream is an upstream data stream

The method can include:

S905: The session management network element sends the first time information to the access network device.

Optionally, the method may further include:

S906: The session management network element sends the first time information to the user plane network element and/or the terminal device.

The user plane network element and/or the terminal device may determine the time for processing the data stream according to the first time information, for example, determine the time for reading the packet corresponding to the data stream from the receiving queue.

In an example, the method may further include:

S907: The session management network element sends the first time information to the application network element.

According to the method provided in this application, the session management network element can determine the time information for the system to process the data stream according to the processing period of the data stream. By providing the determined time information to the user plane network element and/or the access network device, the user plane network element and/or the access network device can perform deterministic transmission according to the time information. Further, by providing the determined non-time information to the external network and application, the external network and application can realize deterministic transmission without relying on the planning and scheduling of other control network elements.

3. The first device is a user plane network element

This will be described with reference to FIG. 14. FIG. 14 is a schematic flowchart of a method 1000 for processing a data stream provided by the present application, and the method 1000 is a specific example of the method 700.

S1001: The user plane network element determines the processing period of the data stream.

For this step, refer to S710, which will not be repeated here.

S1002: The user plane network element determines first time information according to the processing period.

For this step, refer to S720, which will not be repeated here.

(1) The data stream is a downstream data stream

Optionally, the method may further include:

S1003: The user plane network element sends the first time information to the terminal device and/or the access network device.

(2) The data stream is an upstream data stream

The method may also include:

S1004: The user plane network element sends the first time information to the access network device.

Optionally, the method may further include:

S1005: The user plane network element sends the first time information to the terminal device.

The terminal device may determine the time for processing the data stream according to the first time information, for example, determine the time for reading the packet corresponding to the data stream from the receiving queue.

In an example, the method may further include:

S1006: The user plane network element sends the first time information to the application network element.

According to the method provided in this application, the user plane network element can determine the time information for the system to process the data stream according to the processing period of the data stream, so that deterministic transmission can be performed according to the time information. Further, by providing the determined non-time information to the external network and application, the external network and application can realize deterministic transmission without relying on the planning and scheduling of other control network elements.

4. The first device is an application network element

This will be described with reference to FIG. 15. FIG. 15 is a schematic flowchart of a method 1100 for processing a data stream provided by the present application, and the method 1100 is a specific example of the method 700.

S1101: The application network element determines the processing period of the data stream.

For this step, refer to S710, which will not be repeated here.

S1102: The application network element determines first time information according to the processing period.

For this step, refer to S720, which will not be repeated here.

(1) The data stream is a downstream data stream

The method may also include:

S1103: The application network element sends the first time information to the user plane network element.

Optionally, the method may further include:

S1104: The application network element sends the first time information to the terminal device and/or the access network device.

(2) The data stream is an upstream data stream

The method can include:

S1105: The application network element sends the first time information to the access network device.

Optionally, the method may further include:

S1106: The application network element sends the first time information to the terminal device and/or the user plane network element.

In addition, the first time information can be used to assist devices in the external network to perform deterministic transmission, for example, according to the time information of the data stream received by the system and external devices and systems (for example, in the downstream, the devices in the DN and the user plane network The transmission delay between yuan) determines the time window for processing the message on the external device (for example, for the downlink message, the time window for the device in the DN to send the message is determined).

According to the method provided in this application, the application network element can determine the time information for the system to process the data stream according to the processing cycle of the data stream. By providing the determined time information to the user plane network element and/or the access network device, the user plane network element and/or the access network device can perform deterministic transmission according to the time information. Further, by providing the determined non-time information to the external network and application, the external network and application can realize deterministic transmission without relying on the planning and scheduling of other control network elements.

In the current technology, for a downstream data stream, when a user plane network element receives a packet of the downstream data stream, the message itself is not sent strictly according to the cycle, or jitter occurs in the transmission of the data network (such as DN), which will cause The packets received by the user plane network element in different periods will produce jitter, that is, in different periods, the time points of receiving the packets are different. The greater the difference in the time points of receiving messages within a cycle, the greater the jitter. Similarly, for upstream data streams, there will also be jitter issues.

In view of this, the present application provides a method for processing data streams. By processing the packets of the data stream at a fixed time in each cycle, the jitter of the packets can be reduced or even eliminated. The solution provided by this application will be described in detail below.

FIG. 16 is a schematic flowchart of a method for processing a data stream provided by the present application. The method 1200 will be described below.

S1210: The first device obtains first time information.

The first time information may include: the jitter time at which a packet of the data stream arrives at the first device and the first time at which a packet of the data stream arrives at the first device in a cycle.

Alternatively, the first time information may include: the second time when the packet of the data stream arrives at the first device at the latest in the period.

Alternatively, the first time information may include: the third time point in the week when the first device processes the packet of the data stream. The starting moment is at least later than the first moment.

Among them, the jitter time (hereinafter referred to as: the first jitter time) for the packet of the data stream to reach the first device can be understood as: the time at which the packet of the data stream arrives at the first device at the earliest and the latest at the first device in the period The length of time between the moments. For example, referring to Figure 17, suppose that within 4 cycles, the time when the packets of the data stream arrive at the first device are t1, t2, t3, and t4, respectively. 2ms, 3ms from the beginning of the second cycle, 6ms from the beginning of the third cycle, and 1ms from the beginning of the fourth cycle, the first jitter time is 5ms. This application does not limit the definition of the jitter time, and the above is an exemplary description of the jitter time.

The first moment refers to the moment when the packets of the expected or configured data flow start to reach the first device or the moment when the first device is the earliest. For example, in FIG. 17, the first time is the 1 ms from the start of the cycle.

It should be understood that the sum of the first moment and the first jitter time is the latest moment when the packet of the data stream arrives at the first device, that is, the second moment. For example, in FIG. 17, the first moment is the 6th ms from the start of the cycle.

It should be noted that this application does not limit the specific method for obtaining the second moment. The second moment may be determined according to the first moment and the first jitter time, or may be directly determined by the first device or configured by the control plane network element.

The third time refers to the start time of the first device to process the packets of the data stream in the cycle. That is to say, in each cycle, the first device starts to process the packets of the data stream from the third moment. The processing here can be understood as: forwarding or buffering and forwarding the received packets of the data stream. For example, for messages received earlier than the second moment, the first device starts to process these messages from the third moment.

It should be understood that the first device processes the packets of the data stream in a time window of the cycle, and the start time of the time window is the third time. The first device regards the packet of the data stream as received within the time window, and then performs forwarding processing; or, the first device starts to forward the packet within the time window, and so on. Messages received before this time window will be processed within this time window.

Optionally, the third moment is later than the second moment. Or, the third moment is determined according to the jitter time. For example, the third moment is equal to the sum of the first moment and a duration less than the jitter time. Or, the third moment is equal to the moment obtained by adding the jitter time to the first moment.

The data stream may be an upstream data stream or a downstream data stream. For the meaning of the upstream data stream and the downstream data stream, reference may be made to the description in the method 200 above.

In the case that the data stream is a downlink data stream, the first device may be a user plane network element or an access network device.

In the case that the data stream is an upstream data stream, the first device may be an access network device or a terminal device.

Optionally, part or all of the content in the first time information may be received by the first device from the control plane network element. The control plane network element may be a session management network element or an application network element.

S1220: The first device processes the received packet of the data stream at the third time according to the first time information.

The method 1200 will be described in detail below with regard to the two cases where the data stream is an upstream data stream and a downstream data stream.

Situation 1:

The data stream is a downstream data stream

In this case, it will be described separately that the first device is a user plane network element and an access network device.

1. The first device is a user plane network element

This will be described with reference to FIG. 18. Refer to FIG. 18, which is a schematic flowchart of a method for processing a data stream provided by the present application. The method 1300 is a specific example of the method 1200.

S1301: The user plane network element obtains the first time information.

For example, the user plane network element may obtain the first time information from the session management network element or the application network element, that is, the first time information is configured by the session management network element or the application network element to the user plane network element. For another example, the first time information may be determined by the user plane network element itself.

S1302: The user plane network element processes the received data stream packet at the third time according to the first time information.

Based on the above solution, the user plane network element can process the packets of the received data stream at the third time in each cycle according to the first time information. Since the time for processing the packets in each cycle is the same, it can reduce even Eliminate the jitter of the message.

Optionally, the method may further include one or more of the following steps.

S1303: The user plane network element sends the second time information to the control plane network element. Correspondingly, the control plane network element receives the second time information from the user plane network element.

Wherein, the second time information includes one or more of the following: first jitter time, first time, second time, and third time.

It should be understood that the second time information and the first time information may be the same or different. For example, the second time information may be part of the first time information.

It should be noted that S1303 is an optional step. The second time information can also be determined by the control plane network element itself or obtained from other network elements. For example, the control plane network element can be a session management network element, and the second time information can be It is sent by the application network element to the session management network element.

S1304: The control plane network element determines, according to the second time information, the time when the packet of the data stream reaches the access network device and/or the jitter time when it reaches the access network device.

For example, the second time information may include the first jitter time, and the control plane network element may determine the jitter time for the packet of the data stream to reach the access network device according to the first jitter time (hereinafter referred to as the second jitter time), for example, The first jitter time and the second jitter time may be the same.

For example, the second time information may include the second time, and the control plane network element may determine the time when the packet of the data flow arrives at the access network device according to the second time. For example, the second time is added to the time delay between the user plane network element and the access network device as the time when the message arrives at the access network device.

Optionally, the control plane network element may also determine the time when the access network device processes the message according to the third time. For example, add the time delay between the user plane network element and the access network device to the third time as the time for the access network device to process the packet of the data stream.

S1305: The control plane network element determines, according to the second time information, the time when the terminal device processes the packet of the data stream in the period.

For example, the second time information may include the first jitter time and the first time, and the control plane network element may determine the time when the terminal device processes the data stream packet in the period according to the first jitter time and the first time. For example, the first time plus the time length determined according to the first jitter time, plus the time delay between the terminal device and the user plane network element, is used as the time when the terminal device processes the packets of the data stream in the period. time.

For example, the second time information may include the second time, and the control plane network element may determine the time when the terminal device processes the packet of the data stream in the period according to the second time. For example, the time obtained by adding the second time to the time delay between the terminal device and the user plane network element is used as the time when the terminal device processes the packet of the data stream in the cycle.

For example, the second time information may include the third time, and the control plane network element may determine the time at which the terminal processes the packet of the data stream in the period according to the third time. For example, the time obtained by adding the time delay between the terminal device and the user plane network element to the third time is taken as the time when the terminal device processes the packet of the data stream in the cycle.

In an example, the second time information may include the time when the packet of the data stream arrives at the access network device. The control plane network element can determine the time at which the terminal device processes the data flow packet in the period according to the time when the data flow packet arrives at the access network device. For example, the time obtained by adding the time delay between the terminal device and the access network device to the time when the packet of the data flow arrives at the access network device is used as the time when the terminal device processes the packet of the data flow in the period.

It should be understood that this application does not limit the execution sequence between S1304 and S1305.

S1306: The control plane network element sends to the access network device the time when the determined packet of the data flow reaches the access network device and/or the jitter time when it reaches the access network device. Correspondingly, the time when the access network device receives the data flow packet from the control plane network element and arrives at the access network device and/or the jitter time when it arrives at the access network device.

After the access network device receives the data stream packet arriving at the access network device and/or the jitter time of the access network device, the access network device can determine the time at which the access network device processes the data stream in the cycle, which can then be based on the access network device’s jitter time. At the time when the network access device processes the data stream in the cycle, it processes the received data stream.

It should be understood that S1306 is executed when S1304 is executed.

S1307: The control plane network element sends the determined time when the terminal device processes the data stream in the period to the terminal device. Correspondingly, the terminal device receives the time when the terminal device from the control plane network element processes the packet of the data stream in the cycle.

After the terminal device receives the time when the terminal device processes the packet of the data stream in the period, it can process the received packet of the data stream in the period according to the information.

This application does not limit the execution sequence of S1306 and S1307.

2. The first device is an access network device

This will be described with reference to FIG. 19. Refer to FIG. 19, which is a schematic flowchart of a method for processing a data stream provided by the present application. The method 1400 is a specific example of the method 1200.

S1401: The access network device obtains the first time information.

For example, the access network device may obtain the first time information from the session management network element or the application network element, that is, the first time information is configured by the session management network element or the application network element to the access network device. For another example, the first time information may be determined by the access network device itself.

S1402: The access network device processes the received data stream packet at the third time according to the first time information.

Based on the above solution, the access network device can process the packets of the received data stream at the third time in each cycle according to the first time information. Since the time for processing the packets in each cycle is the same, it can reduce Even eliminate the jitter of the message.

Optionally, the method may further include one or more of the following steps.

S1403: The access network device sends third time information to the control plane network element. Correspondingly, the control plane network element receives the third time information from the access network device.

Wherein, the third time information includes one or more of the following: first jitter time, first time, second time, and third time.

It should be understood that the third time information and the first time information may be the same or different. For example, the third time information may be part of the first time information.

It should be noted that S1403 is an optional step. The third time information can also be determined by the control plane network element itself or obtained from other network elements. For example, the control plane network element can be a session management network element, and the third time information can be It is sent by the application network element to the session management network element.

S1404: The control plane network element determines, according to the third time information, the time when the terminal device processes the packet of the data stream in the period.

This step is similar to S1305. For details, please refer to S1305, which will not be repeated here.

S1405: The control plane network element sends the determined time when the terminal device processes the data stream in the period to the terminal device. Correspondingly, the terminal device receives the time when the terminal device from the control plane network element processes the packet of the data stream in the cycle.

This step is the same as S1307. For details, please refer to S1307, which will not be repeated here.

Situation 2:

This data stream is an upstream data stream.

In this case, the first device is the access network device and the terminal device will be described separately.

1. The first device is a terminal device

This will be described with reference to FIG. 20. Refer to FIG. 20, which is a schematic flowchart of a method for processing a data stream provided by the present application. The method 1500 is a specific example of the method 1200.

S1501: The terminal device obtains the first time information.

For example, the terminal device may obtain the first time information from the session management network element or the application network element, that is, the first time information is configured by the session management network element or the application network element to the terminal device. For another example, the first time information may be determined by the terminal device itself.

S1502: The terminal device processes the received data stream packet at the third time according to the first time information.

Based on the above solution, the terminal device can process the received data stream message at the third time according to the first time information. Since the processing time of the message is the same in each cycle, the jitter of the message can be reduced or even eliminated.

Optionally, the method may further include one or more of the following steps.

S1503: The terminal device sends fourth time information to the control plane network element. Correspondingly, the control plane network element receives the fourth time information from the terminal device.

Wherein, the fourth time information includes one or more of the following: the first jitter time, the first time, the second time, and the third time.

It should be understood that the fourth time information and the first time information may be the same or different. For example, the fourth time information may be part of the first time information.

It should be noted that S1503 is an optional step. The fourth time information can also be determined by the control plane network element itself or obtained from other network elements. For example, the control plane network element can be a session management network element, and the fourth time information can be It is sent by the application network element to the session management network element.

S1504: The control plane network element determines, according to the fourth time information, the time when the user plane network element sends the packet of the data stream in the period.

For example, the fourth time information may include the first jitter time, and the control plane network element may determine the time when the user plane network element sends the data stream packet in the period according to the first jitter time and the time when the data stream packet arrives at the terminal device. time. For example, the time when the packet of the data stream arrives at the terminal device, the duration determined according to the first jitter time (for example, the duration less than the first jitter time), the delay between the terminal device and the user plane network element, and the terminal device forwarding The sum of the internal delays of the message is used as the time when the user plane network element sends the data stream message in the cycle.

For example, the fourth time information may include the second time, and the control plane network element may determine the time at which the user plane network element sends the packet of the data stream in the period according to the second time. For example, the sum of the packets of the data flow in the period that arrive at the terminal device at the second time at the latest, the delay between the terminal device and the user plane network element, and the internal delay of the terminal device forwarding the packet is regarded as the user plane The time at which a network element sends a packet of a data stream in a period.

Optionally, the control plane network element may also determine the time when the user plane network element processes the packet of the data stream in the period according to the third time. For example, the sum of the time when the terminal device processes the packet of the data stream in the cycle, the delay between the terminal device and the user plane network element, and the internal delay of the terminal device forwarding the message is regarded as the user plane network element in the period The time at which the packets of the data stream are processed.

S1505: The control plane network element determines, according to the fourth time information, the time when the terminal device sends the data stream packet in the period.

For example, the fourth time information may include the second time, and the control plane network element may determine the time at which the terminal device sends the data stream packet in the period according to the second time. For example, the sum of the second time and the internal delay of the terminal device forwarding the packet is taken as the time when the terminal device sends the packet of the data stream.

For example, the fourth time information may include the third time, and the control plane network element may determine the time at which the terminal device sends the data stream packet according to the third time. For example, the sum of the third time and the internal delay of the terminal device forwarding the message is taken as the time when the terminal device sends the message of the data stream.

S1506: The control plane network element sends to the user plane network element the determined time when the user plane network element sends a data stream packet in the period. Correspondingly, the user plane network element receives the time when the user plane network element from the control plane network element sends a data stream packet in the period.

The user plane network element may send the received data stream packet at this time in each cycle according to the received time when the data stream packet is sent in the cycle.

S1507: The control plane network element sends the determined time when the terminal device sends a data stream packet in the period to the access network device. Correspondingly, the terminal device receives the time when the terminal device from the control plane network element sends a data stream packet in the period.

The access network device may receive the packet of the data stream from the terminal device according to the moment when the packet of the data stream sent by the terminal device is received in the period.

2. The first device is an access network device

This will be described with reference to FIG. 21. Refer to Fig. 21, which is a schematic flowchart of a method for processing a data stream provided by the present application. The method 1600 is a specific example of the method 1200.

S1601: The access network device obtains the first time information.

S1602: The access network device processes the received data stream packet at the third time according to the first time information.

Based on the above solution, the access network device can process the received data stream message at the third time according to the first time information. Since the processing time of the message is the same in each cycle, the jitter of the message can be reduced or even eliminated. .

Optionally, the method may further include one or more of the following steps.

S1603: The access network device sends fifth time information to the control plane network element. Correspondingly, the control plane network element receives the fifth time information from the access network device.

Wherein, the fifth time information includes one or more of the following: the jitter time of the data stream packet sent by the terminal device, the time when the terminal device sends the data stream packet, and the latest data stream packet sent by the terminal device The moment.

It should be noted that S1603 is an optional step. The fifth time information can also be determined by the control plane network element itself or obtained from other network elements. For example, the control plane network element can be a session management network element, and the fifth time information can be It is sent by the application network element to the session management network element.

S1604: The control plane network element determines, according to the fifth time information, the time at which the user plane network element sends the packet of the data stream in the period.

For example, the fifth time information may include the jitter time of the data stream packet sent by the terminal device and/or the time when the terminal device sends the data stream packet, and the control plane network element can be based on the jitter time of the data stream packet sent by the terminal device , The time when the terminal device sends the packet of the data stream (if one of the information is not included in the fifth time information, it can be obtained from the control plane by SMF or AF, or configuration information) to determine the user plane network element to send data in the cycle The moment of the flow of the message. For example, the sum of the time when the terminal sends a data stream packet, the delay between the terminal device and the user plane network element, the internal delay of the terminal device forwarding the message, and the duration determined according to the jitter time, is used as the user plane network The time at which the element sends a packet of the data stream within the cycle. Further, the duration of sending the message can be determined according to the data volume of the data stream in the cycle, and then the sum of the time when the user plane network element sends the data stream message in the cycle and the duration of sending the message is taken as the user plane The time at which the network element sends a packet of a data stream within a period.

For example, the fifth time information may include the latest time when the terminal device sends a data stream packet, and the user plane network element can determine that the user plane network element sends data within a period according to the latest time when the terminal device sends a data stream packet. The moment of the flow of the message. For example, the sum of the time when the terminal device sends the packet of the data stream, the delay between the terminal device and the user plane network element, and the internal delay of the terminal device forwarding the message is regarded as the user plane network element in the cycle The time when the packet of the data stream is sent. Further, the duration of sending the message can be determined according to the data volume of the data stream in the cycle, and then the sum of the time when the user plane network element sends the data stream message in the cycle and the duration of sending the message is taken as the user plane The time at which the network element sends a packet of a data stream within a period.

S1605: The control plane network element sends to the user plane network element the determined time when the user plane network element sends the data stream packet in the period. Correspondingly, the user plane network element receives the time when the user plane network element from the control plane network element sends a data stream packet in the period.

After the user plane network element receives the time when the user plane network element sends the data stream packet in the period, it can send the received data stream packet according to the time.

It should also be understood that, in the various embodiments of the present application, if there are no special instructions and logical conflicts, the terms and/or descriptions between the different embodiments are consistent and can be mutually cited. The technical features in the different embodiments According to its inherent logical relationship, it can be combined to form a new embodiment.

The method for determining the side row resource of the embodiment of the present application is described in detail above with reference to FIGS. 1 to 21. The communication device of the embodiment of the present application is described below with reference to FIGS. 22 and 23. It should be understood that FIG. 22 and FIG. The communication device in 23 can execute each step of the method provided in this application.

FIG. 22 is a schematic block diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 22, the communication device 2000 may include a transceiving unit 2010 and a processing unit 2020.

Wherein, the transceiver unit 2010 may be used to send information to other devices or equipment. For example, sending the first message. The processing unit 2020 may be used to perform internal processing of the device, such as determining a processing cycle.

In an implementation manner, the communication apparatus 2000 corresponds to the first device in the method 200, and the first device in the method 200 may specifically be the policy control network element in the method 300, the session management network element in the method 400, and the method User plane network element in 500 or application network element in method 600. The communication apparatus 2000 may be a first device or a chip configured in the first device, or a component or component that can implement a communication function in the first device.

Specifically, the processing unit 2020 is configured to obtain first information, where the first information includes the jitter requirement of the data stream and/or the transmission delay requirement of the data stream, and the data stream is an aperiodic data stream; the processing unit 2020 is further configured to determine a processing period according to the first information, where the processing period is a period in which the data stream is periodically processed.

Optionally, the first information further includes: a scheduling period of the access network device, and/or a minimum period; wherein, the minimum period is a minimum processing period supported by the system.

Optionally, the device 2000 is a policy control network element.

Optionally, the processing unit 2020 is specifically configured to: control the transceiver unit 2010 to obtain the first information from the application network element. Alternatively, the first information is determined according to identification information of the quality of service QoS used to forward the data stream.

Optionally, the device 2000 is a session management network element.

Optionally, the processing unit 2020 is specifically configured to: control the transceiver unit 2010 to obtain the first information from the policy control network element.

Optionally, the device 2000 is a user plane network element.

Optionally, the processing unit 2020 is specifically configured to: control the transceiver unit 2010 to obtain the first information from a policy control network element or a session management network element.

Optionally, the transceiver unit 2010 is further configured to: send the processing period to the terminal device and/or the access network device.

Optionally, the transceiver unit 2010 is further configured to send the processing period to an application network element, where the processing period is used by the application network element to process the data stream.

Optionally, the device 2000 is an application network element.

Optionally, the transceiver unit 2010 is further configured to send the processing period to one or more of the following devices: terminal devices, access network devices, or user plane network elements.

Optionally, the transceiver unit 2010 is further configured to: if the data stream is a downlink data stream, send instruction information to the terminal device and/or the access network device; to the user plane network element and/or the terminal The device sends the indication information; where the indication information is used to indicate that the processing period is used to process the data stream.

In an implementation manner, the communication device 2000 corresponds to the access network device in any one of the methods 300 to 600. The communication device 2000 may be an access network device or a chip configured in the access network device, or a component or component that can realize a communication function in the access network device.

Specifically, the processing unit 2020 is configured to determine a minimum period, which is the minimum processing period supported by the system; the transceiver unit 2010 is configured to send the minimum period to the first device, and the minimum period is used for the first device. The device determines a processing period, where the processing period is a period in which the aperiodic data stream is periodically processed.

Optionally, the transceiver unit 2010 is further configured to: receive the processing period from the first device.

Optionally, the transceiver unit 2010 is further configured to: receive instruction information from the first device, where the instruction information is used to indicate that the processing period is used to process the data stream.

In an implementation manner, the communication device 2000 corresponds to an application network element in any one of the methods 300 to 600. The communication device 2000 may be an application network element or a chip configured in the application network element, or a component or component that can implement a communication function in the application network element.

Specifically, the processing unit 2020 is configured to obtain first information, the first information includes the jitter requirement of the data stream and/or the transmission delay requirement of the data stream, and the data stream is an aperiodic data stream; the transceiver unit 2010 is used to send the first information to a first device, where the first information is used by the first device to determine a processing period, and the processing period is a period in which the data stream is periodically processed.

Optionally, the apparatus 2000 is an application network element, and the first device is a policy control network element, a session management network element, or a user plane network element.

In another implementation manner, the communication apparatus 2000 corresponds to the first device in the method 700, and the first device in the method 700 may specifically be the policy control network element in the method 800, the session management network element in the method 900, The user plane network element in the method 1000 or the application network element in the method 1100. The communication apparatus 2000 may be a first device or a chip configured in the first device, or a component or component that can implement a communication function in the first device.

Specifically, the processing unit 2010 is configured to determine a processing period of a data stream, the data stream is an aperiodic data stream, and the processing period is a period in which the aperiodic data stream is periodically processed, or The data stream is a periodic data stream, and the processing period is a sending period of the periodic data stream; according to the processing period, first time information is determined, and the first time information is the system processing the data stream Time information.

Optionally, the device 2000 is a user plane network element.

Optionally, the transceiver unit 2010 is configured to send the first time information to one or more of the following: a terminal device, an access network device, or an application network element.

Optionally, the device 2000 is a policy control network element, a session management network element, or an application network element.

Optionally, the transceiver unit 2010 is further configured to send the first time information to the access network device and/or the user plane network element.

Optionally, when the device 2000 is a policy control network element or a session management network element, the transceiver unit 2010 is further configured to send the first time information to the application network element.

Optionally, the processing unit 2020 is specifically configured to: determine the processing period according to first information, where the first information includes the jitter requirement of the data stream and/or the transmission delay requirement of the data stream, the The data stream is an aperiodic data stream.

Optionally, the first information further includes a scheduling period and/or a minimum period of the access network device, and the minimum period is a minimum processing period supported by the system.

In an implementation manner, the communication apparatus 2000 corresponds to the first device in the method 1200, and the first device in the method 1200 may specifically be the user plane network element in the method 1300, the access network device in the method 1400, and the method The terminal device in 1500 or the access network device in method 1600. The communication apparatus 2000 may be a first device or a chip configured in the first device, or a component or component that can implement a communication function in the first device.

It should be understood that the communication apparatus 2000 may be used to perform operations performed by the first device. For example, the processing unit 2020 or the transceiver unit 2010 may be used to obtain the first time information in the method 1200; the processing unit 2020 is also used to process the received data stream report at the third time according to the first time information. Arts.

In an implementation manner, the communication device 2000 corresponds to a control plane network element in any one of the method 1200 to the method 1600. The communication device 2000 may be a control plane network element or a chip configured in the control plane network element, or a component or component that can realize a communication function in the control plane network element.

It should be understood that the communication apparatus 2000 may be used to perform operations performed by the first device. For example, the processing unit 2020 or the transceiving unit 2010 may be used to obtain the first time information; the transceiving unit 2010 is used to send the first time information to the first device

It should be understood that the apparatus 2000 may be used to implement the function of any network element or device involved in any of the methods 200 to 1600.

It should also be understood that the specific process for each unit to execute the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and will not be repeated here for brevity.

It should also be understood that the transceiving unit 2010 in the communication device 2000 may correspond to the transceiver 3300 in the communication device 3000 shown in FIG. 23, and the processing unit 2020 in the communication device 2000 may correspond to the communication shown in FIG. 23 The processor 3100 in the device 3000.

FIG. 23 is a schematic structural diagram of another communication device 3000 provided by an embodiment of the present application. The communication device 3000 may be a physical device, or a component or component that can implement a communication function, such as an integrated circuit or a chip. The communication device 3000 may be any network element or device involved in any method provided in this application.

Referring to FIG. 23, the communication device 3000 includes: one or more processors 3100. The processor 3100 may store execution instructions for executing the method in the embodiments of the present application. The processor 3100 may also be referred to as a processing circuit. Optionally, the processor 3100 may call an interface to implement receiving and sending functions. The interface may be a logical interface or a physical interface, which is not limited. For example, the interface can be a transceiver circuit or an interface circuit. The transceiver functions of the interface can be separated or integrated. For example, the interface may include a receiving circuit and a transmitting circuit, or an input circuit and an output circuit, or an input interface and an output interface, or a receiving interface and a transmitting interface. The aforementioned interface can be used for code/data reading and writing, or the aforementioned interface can be used for signal transmission or transmission.

Optionally, the interface can be implemented by a transceiver. Optionally, the communication device 3000 may further include a transceiver 3300. The transceiver 3300 may be called a transceiver unit, a transceiver, a transceiver circuit or a transceiver, etc., for implementing the transceiver function.

Optionally, the communication device 3000 may further include a memory 3200. The embodiment of the present application does not specifically limit the specific deployment location of the memory 3200, and the memory may be integrated in the processor, or may be independent of the processor. In the case where the computer device does not include a memory, the computer device only needs to have processing functions, and the memory can be deployed in other locations (for example, a cloud system).

The processor 3100, the memory 3200, and the transceiver 3300 communicate with each other through internal connection paths, and transfer control and/or data signals.

It can be understood that, although not shown, the communication device 3000 may also include other modules, such as a battery.

Optionally, in some embodiments, the memory 3200 may store execution instructions for executing the methods in the embodiments of the present application. The processor 3100 may execute the instructions stored in the memory 3200, and combine with other hardware (for example, the transceiver 3300) to complete the steps executed by the method shown above. For the specific working process and beneficial effects, please refer to the description in the method embodiment above.

The processor 3300 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the method can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in random access memory (RAM), flash memory, read-only memory (read-only memory, ROM), programmable read-only memory or electrically erasable programmable memory, registers, etc. mature in the field Storage medium. The storage medium is located in the memory, and the processor reads the instructions in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory 3200 may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be a read-only memory ROM, a programmable read-only memory (programmable ROM, PROM), an erasable programmable read-only memory (erasable PROM, EPROM), and an electrically erasable programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory RAM, which acts as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), and synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) ) And direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

The aforementioned communication device 3000 may be a general-purpose computer device or a special-purpose computer device. In a specific implementation, the communication device 3000 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device, an embedded device, or a device shown in Figure 17. Similar structure equipment. The embodiment of the present application does not limit the type of the communication device 3000.

This application also provides a computer program product, the computer program product comprising: computer program code, when the computer program code runs on a computer, the computer executes method 200 or method 700 or method 1200 executed by the first device Methods.

This application also provides a computer program product, the computer program product comprising: computer program code, when the computer program code runs on a computer, causes the computer to execute any of the foregoing method embodiments executed by the policy control network element method.

The present application also provides a computer program product, the computer program product comprising: computer program code, when the computer program code runs on a computer, causes the computer to execute any of the foregoing method embodiments executed by the session management network element method.

This application also provides a computer program product, the computer program product comprising: computer program code, when the computer program code runs on a computer, causes the computer to execute any of the foregoing method embodiments executed by the user plane network element method.

This application also provides a computer program product, the computer program product comprising: computer program code, when the computer program code runs on a computer, causes the computer to execute the method executed by the application network element in any of the foregoing method embodiments .

The present application also provides a computer program product, the computer program product comprising: computer program code, when the computer program code runs on a computer, the computer executes any of the foregoing method embodiments executed by the access network device method.

The present application also provides a computer program product. The computer program product includes: computer program code, which when the computer program code runs on a computer, causes the computer to execute the method executed by the terminal device in any of the foregoing method embodiments.

The present application also provides a computer-readable storage medium that stores program code, and when the program code runs on a computer, the computer executes the aforementioned method 200 or method 700 or method 1200 by the first The method performed by the device.

The present application also provides a computer-readable storage medium that stores program code, and when the program code runs on a computer, the computer executes any of the following network elements or The method executed by the device: a policy control network element, a session management network element, a user plane network element, an application network element, an access network device, or a terminal device.

This application also provides a system including at least one of the following network elements or devices involved in any of the foregoing method embodiments: policy control network elements, session management network elements, user plane network elements, application network elements, and access network Equipment, or terminal equipment.

An embodiment of the present application also provides a processing device, including a processor and an interface; the processor is configured to execute a method executed by any one of the following network elements or devices in any of the foregoing method embodiments: a policy control network element, Session management network element, user plane network element, application network element, access network device, or terminal device.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disc, SSD)) etc.

The terms "component", "module", "system", etc. used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, or a computer running on the processor. Through the illustration, both the application running on the computing device and the computing device can be components. One or more components can reside in a process or thread of execution, and the components can be located on one computer or distributed between two or more computers. In addition, these components can be executed from various computer readable media having various data structures stored thereon. For example, a component can pass a local signal based on a signal having one or more data packets (for example, data from two components that interact with another component in a local system, a distributed system, or a network, such as the Internet that interacts with other systems through a signal). Or remote process to communicate.

It should be understood that the “embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

It should be understood that in the embodiments of this application, the numbers "first", "second"... are only used to distinguish different objects, such as to distinguish different network devices, and do not limit the scope of the embodiments of this application. Examples are not limited to this.

It should also be understood that in this application, "when", "if" and "if" all mean that the network element will make corresponding processing under certain objective circumstances. It is not a time limit, and the network element is not required. There must be a judgmental action when realizing, and it does not mean that there are other restrictions.

It should also be understood that in this application, "at least one" refers to one or more, and "multiple" refers to two or more.

It should also be understood that in the embodiments of the present application, "A corresponding to B" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B based on A does not mean that B is determined only based on A, and B can also be determined based on A and/or other information.

It should also be understood that the term “and/or” in this text is only an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean that there is A alone, and both A and A B, there are three cases of B alone. A, B, and/or C (or, A, B, and/or C) can represent the following seven situations: A alone, B alone, C alone, A and B simultaneously, and A and C, B and C exist at the same time, and A, B and C exist at the same time. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

The meaning of the expression similar to "item includes one or more of the following: A, B, and C" in this application, unless otherwise specified, usually means that the item can be any of the following: A; B ; C; A and B; A and C; B and C; A, B and C; A and A; A, A and A; A, A and B; A, A and C, A, B and B; A , C and C; B and B, B, B and B, B, B and C, C and C; C, C and C, and other combinations of A, B and C. The above is an example of the three elements of A, B and C to illustrate the optional items of the item. When expressed as "the item includes at least one of the following: A, B, ..., and X", it is in the expression When there are more elements, then the applicable items for the item can also be obtained in accordance with the aforementioned rules.

It is understandable that in the embodiments of the present application, the terminal device and/or the network device can perform some or all of the steps in the embodiments of the present application. These steps or operations are only examples, and the embodiments of the present application may also perform other operations or various operations. Deformation of the operation. In addition, each step may be executed in a different order presented in the embodiments of the present application, and it may not be necessary to perform all the operations in the embodiments of the present application.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute 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 ROM, random access memory RAM, magnetic disk or optical disk and other media that can store program codes.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A method for processing data stream, characterized in that it comprises:

The first device acquires first information, where the first information includes a jitter requirement of a data stream and/or a transmission delay requirement of the data stream, and the data stream is an aperiodic data stream;

The first device determines a processing period according to the first information, and the processing period is a period in which the data stream is periodically processed.
The method according to claim 1, wherein the first information further comprises: a scheduling period of an access network device, and/or a minimum period;

Wherein, the minimum period is the minimum processing period supported by the system.
The method according to claim 1 or 2, wherein the first device is a policy control network element.
The method according to claim 3, wherein the obtaining of the first information by the first device comprises:

The first device obtains the first information from the application network element; or,

The first device determines the first information according to the identification information of the quality of service QoS used to forward the data flow.
The method according to claim 1 or 2, wherein the first device is a session management network element.
The method according to claim 5, wherein the obtaining of the first information by the first device comprises:

The first device obtains the first information from the policy control network element.
The method according to claim 1 or 2, wherein the first device is a user plane network element.
8. The method of claim 7, wherein the first device acquiring the first information comprises:

The first device obtains the first information from a policy control network element or a session management network element.
The method according to claim 7 or 8, wherein the method further comprises:

The first device sends the processing period to the terminal device and/or the access network device.
The method according to any one of claims 3 to 8, wherein the method further comprises:

The first device sends the processing period to the application network element, where the processing period is used by the application network element to process the data stream.
The method according to claim 1 or 2, wherein the first device is an application network element.
The method according to claim 3 or 10, wherein the method further comprises:

The first device sends the processing period to one or more of the following devices: a terminal device, an access network device, or a user plane network element.
The method of claim 12, wherein the method further comprises:

If the data stream is a downlink data stream, the first device sends instruction information to the terminal device and/or the access network device;

If the data stream is an uplink data stream, the first device sends the indication information to a user plane network element and/or the terminal device;

Wherein, the indication information is used to indicate that the processing period is used to process the data stream.
A method for processing data stream, characterized in that it comprises:

The access network device determines a minimum period, where the minimum period is the minimum processing period supported by the system;

The access network device sends the minimum period to the first device, where the minimum period is used by the first device to determine a processing period, and the processing period is a period in which aperiodic data streams are periodically processed.
The method of claim 14, wherein the method further comprises:

The access network device receives the processing period from the first device.
The method of claim 15, wherein the method further comprises:

The access network device receives instruction information from the first device, where the instruction information is used to indicate that the processing period is used to process the data stream.
A method for processing data stream, characterized in that it comprises:

The second device acquires first information, where the first information includes a jitter requirement of a data stream and/or a transmission delay requirement of the data stream, and the data stream is an aperiodic data stream;

The second device sends the first information to the first device, where the first information is used by the first device to determine a processing period, and the processing period is a period in which the data stream is periodically processed.
The method according to claim 17, wherein the second device is an application network element, and the first device is a policy control network element, a session management network element, or a user plane network element.
A method for processing data stream, characterized in that it comprises:

The first device obtains first time information, where the first time information includes the jitter time for the packets of the data flow to reach the first device and the first time that the packets of the data flow arrive at the first device in the period. Time, or, the first time information includes the second time when the packet of the data stream arrives at the first device at the latest in the period, or the first time information includes the time when the first device is in the period The third moment of internal processing of the packet of the data stream;

The first device processes the received packet of the data stream at the third time according to the first time information, and the third time is at least later than the first time.
The method according to claim 19, wherein the third time is later than the second time, or the third time is determined according to the jitter time, or,

The third time is equal to the time obtained by adding the jitter time to the first time.
The method according to claim 19 or 20, wherein the acquiring first time information by the first device comprises:

The first device receives part or all of the content in the first time information from the control plane network element.
The method according to any one of claims 19 to 21, wherein the data stream is a downlink data stream, and the first device is a user plane network element or an access network device.
The method of claim 22, wherein the first device is the user plane network element;

The method also includes:

The first device sends second time information to the control plane network element, where the second time information includes one or more of the following: the jitter time, the first time, the second time, At the third time, the second time information is used by the control plane network element to determine the time when the packet of the data flow arrives at the access network device and/or the jitter when it arrives at the access network device Time, and/or, determine the time when the terminal device processes the packet of the data stream in the cycle.
The method of claim 22, wherein the first device is the access network device;

The method also includes:

The first device sends third time information to the control plane network element, where the third time information includes one or more of the following: the jitter time, the first time, the second time, At the third time, the third time information is used by the control plane network element to determine the time at which the terminal device processes the packet of the data stream in a period.
The method according to any one of claims 19 to 21, wherein the data stream is an uplink data stream, and the first device is an access network device or a terminal device.
The method of claim 25, wherein the first device is the terminal device;

The method also includes:

The first device sends fourth time information to the control plane network element, where the fourth time information includes one or more of the following: the jitter time, the first time, the second time, At the third time, the fourth time information is used by the control plane network element to determine the time when the terminal device sends the packet of the data stream in a period, and/or to determine the user plane network element The time at which the packet of the data stream is sent within the period.
The method of claim 25, wherein the first device is the access network device;

The method also includes:

The first device sends fifth time information to the control plane network element, where the fifth time information includes one or more of the following: the jitter time of the data stream packet sent by the terminal device , The time at which the terminal device sends the packet of the data stream, the time at which the terminal device sends the packet of the data stream latest, and the fifth time information is used by the control plane network element to determine the The time at which the user plane network element sends the packet of the data stream within the period.
A method for processing data stream, characterized in that it comprises:

The control plane network element obtains first time information, where the first time information includes the jitter time of the packet of the data stream reaching the first device and the first time of the packet of the data stream reaching the first device in the period , Or, the first time information includes the second time when the packet of the data stream arrives at the first device at the latest in the period, or the first time information includes the first device in the period The third moment of processing the packet of the data stream;

The control plane network element sends the first time information to the first device, where the first time information is used by the first device to process the received packet of the data stream at the third time, so The third moment is at least later than the first moment.
The method according to claim 28, wherein the third time is later than the second time, or the third time is determined according to the jitter time, or,

The third time is equal to the time obtained by adding the jitter time to the first time.
The method according to claim 28 or 29, wherein the data stream is a downlink data stream, and the first device is a user plane network element or an access network device.
The method of claim 30, wherein the first device is the user plane network element;

And, the method further includes:

The control plane network element determines, according to the second time information, the time when the packet of the data stream arrives at the access network device and/or the jitter time when it reaches the access network device, and/or determines that the terminal device is at The time at which the packet of the data stream is processed in the cycle, wherein the second time information includes one or more of the following: the jitter time, the first time, the second time, and the Said the third moment;

The control plane network element sends the determined packet of the data flow to the access network device the moment when the message reaches the access network device and/or the jitter time when it reaches the access network device, and/or ,

Sending to the terminal device the determined time at which the terminal device processes the packet of the data stream in the period.
The method according to claim 31, wherein the second time information is received by the control plane network element from the first device.
The method of claim 30, wherein the first device is the access network device;

And, the method further includes:

The control plane network element determines the time when the terminal device processes the packet of the data stream in the period according to the third time information, where the third time information includes one or more of the following: the jitter Time, the first moment, the second moment, and the third moment;

The control plane network element sends the determined time at which the terminal device processes the data stream in the period to the terminal device.
The method according to claim 33, wherein the third time information is received by the control plane network element from the first device.
The method according to claim 28 or 29, wherein the data stream is an uplink data stream, and the first device is an access network device or a terminal device.
The method of claim 35, wherein the first device is the terminal device;

And, the method further includes:

The control plane network element determines, according to the fourth time information, the time when the terminal device sends the packet of the data stream in the period, and/or determines the time when the user plane network element sends the data stream in the period The time of the message, wherein the fourth time information includes one or more of the following: the jitter time, the first time, the second time, and the third time;

The control plane network element sends the determined time when the terminal device sends the data stream packet within the period to the access network device, and/or,

Sending to the user plane network element the determined time at which the user plane network element sends the packet of the data stream in a period.
The method of claim 36, wherein the fourth time information is received by the control plane network element from the first device.
The method of claim 35, wherein the first device is the access network device;

And, the method further includes:

The control plane network element determines the time at which the user plane network element sends the packet of the data stream in the period according to the fifth time information, wherein the fifth time information includes one or more of the following : The jitter time for the terminal device to send the data stream packet, the time when the terminal device sends the data stream packet, and the latest time when the terminal device sends the data stream packet;

The control plane network element sends the determined time at which the user plane network element sends the data stream packet within the period to the user plane network element.
The method of claim 38, wherein the fifth time information is received by the control plane network element from the first device.
A communication device, characterized in that the device is used to execute the method according to any one of claims 1 to 13.
A communication device, characterized in that the device is used to execute the method according to any one of claims 14 to 16.
A communication device, characterized in that the device is used to execute the method according to claim 17 or 18.
A communication device, characterized in that the device is used to execute the method according to any one of claims 19-27.
A communication device, characterized in that the device is used to execute the method according to any one of claims 28 to 39.
A communication device, characterized by comprising: a processor, the processor is coupled with a memory, the memory is used to store a program or instruction, when the program or instruction is executed by the processor, the device Perform the method according to any one of claims 1 to 39.
A computer-readable storage medium having a computer program or instruction stored thereon, wherein the computer program or instruction causes the method according to any one of claims 1 to 39 to be executed when the computer program or instruction is executed.
A communication system, characterized by comprising the communication device according to any one of claims 40 to 42 or any one of claims 43 to 44.