Intelligent agent communication cross-domain service quality assurance method, equipment and medium

Abstract

The invention discloses an agent communication cross-domain service quality guarantee method, equipment and a medium, belongs to the technical field of intelligent communication, and aims to solve the technical problem that the existing agent communication protocol uses HTTP / HTTPS in an application layer, and the existing packet filtering and mapping mechanism based on IP quintuple cannot be distinguished. In order to guarantee the service quality of an end-side agent and a virtual agent in a mobile communication network and provide differentiated QoS for different AI services in a 5G-A / 6G network, the adopted technical scheme is as follows: the network issues a cross-domain QoS mapping rule to the end-side agent in an agent session establishment process and issues an N4 mapping rule to a UPF; an inter-domain mapping relation between the 5QI and the DSCP, namely a 5G domain and an IP domain, is embodied; when the QoS flow is mapped in the uplink and downlink directions, if it is detected that an application layer uses an HTTP / HTTPS protocol and indicates an AI service, the DSCP is mapped to 5QI according to a cross-domain QoS mapping rule / N4 mapping rule, and QFI information corresponding to the 5QI is carried in an uplink SDAP packet header and a downlink GTP-U packet header for flow identification.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agent communication, in particular to an agent communication cross-domain quality of service guarantee method, device and medium. BACKGROUND

[0002] The quality of service guarantee (QoS) mechanism is a key technical support for realizing differentiated services in a mobile communication network, and directly affects user experience and service performance. In existing 5G networks, a UE / UPF matches a data packet to be sent to a corresponding QoS flow according to a five-tuple. In the downlink direction, the UPF associates the data packet to a specific QoS flow through IP five-tuple matching, and carries the QFI identifier in the GTP-U packet header. The base station learns the mapping relationship between the QFI and the QoS parameter through the PDU session establishment / modification process (reflected in the N2 interface PDU session resource establishment / modification process) or pre-configuration mode on the previous signaling plane, and then performs corresponding scheduling and forwarding strategies. In the uplink direction, the network notifies the UE of the QoS rule in the PDU session establishment / modification process (which can also be pre-configured in the UE), and the QoS rule includes the QFI of the associated QoS flow, the packet filter and the priority value. The packet filter is usually based on IP five-tuple for traffic classification, and the UE maps the data packet according to the QoS rule, associates the uplink traffic with the QoS flow, and carries the QFI information in the SDAP packet header for the base station to identify the uplink data packet and GTP-U encapsulation.

[0003] With the development of mobile communication technology, it will evolve from 5G Internet of Everything to 6G Internet of Intelligence, and agent communication has become an important scenario for 6G. An agent is an intelligent entity with autonomous ability, with the ability to interact with the environment, acquire context information, reason, learn, make decisions, and execute tasks to achieve specific goals. It includes physical agents such as robots and virtual agents such as personal assistants. The large model as the brain gives the agent the ability to think, which can be deployed locally on the end side or in the cloud, or deployed collaboratively on the end side and in the cloud. Agents can initiate communication like humans, and their traffic patterns can be north-south and cloud application and tool interaction, or east-west and other agent communication. The agent communication protocol defines the interaction rules between agents, and is a key technology for network-enabled agent communication and collaboration.

[0004] At present, the industry has released multiple intelligent body communication protocols, such as MCP (Model Context Protocol) protocol for vertical intelligent bodies to call resources and tools, A2A (Agent-to-Agent) and ANP (Agent Network Protocol) protocols for horizontal interaction and cooperation between intelligent bodies, but these protocols mainly face the IT field, which is equivalent to adding a business layer deeply coupled with business on the application layer. HTTP / HTTPS as a business-independent general bearer protocol is currently lacking an adaptation mechanism for mobile communication networks. Taking the QoS mechanism as an example, the existing intelligent body communication protocols use HTTP / HTTPS at the application layer, but the business on top of it has different SLA (Service Level Agreement) requirements. For example, image classification / recognition, visual inspection, ASR (Automatic Speech Recognition) / TTS (Text to Speech) businesses have significantly different QoS requirements, but the existing packet filtering and mapping mechanism based on IP five-tuple cannot distinguish them.

[0005] The current intelligent body communication protocol uses HTTP / HTTPS as a general protocol at the application layer, while the existing mobile communication network service guarantee mechanism uses IP five-tuple for QoS flow matching, which cannot provide differentiated QoS guarantee for different AI applications.

[0006] Therefore, how to guarantee the service quality of the end-side mobile intelligent body and the virtual intelligent body on the intelligent terminal in the mobile communication network, and provide differentiated QoS for different AI businesses in the 5G-A / 6G network is a technical problem to be solved. SUMMARY

[0007] The technical task of the present application is to provide an intelligent body communication cross-domain service quality guarantee method, device and medium to solve the problem of how to guarantee the service quality of the end-side mobile intelligent body and the virtual intelligent body on the intelligent terminal in the mobile communication network, and provide differentiated QoS for different AI businesses in the 5G-A / 6G network.

[0008] The technical task of the present application is achieved in the following manner, a method for guaranteeing service quality of cross-domain communication of an intelligent agent, wherein the network issues cross-domain QoS mapping rules to the end-side intelligent agent during the establishment of an intelligent agent session and issues N4 mapping rules to the UPF, reflecting the inter-domain mapping relationship between 5QI and DSCP, i.e. the 5G domain and the IP domain; wherein the cross-domain QoS mapping rules and the N4 mapping rules are derived by the SMF according to the received PCC rules or generated according to local configuration, and the cross-domain QoS mapping rules sent to the end-side intelligent agent are carried in a container in the PDU session establishment response message or the PDU session modification command message; the processing process of the uplink and downlink data packets is as follows:

[0009] In the uplink direction, when the end-side intelligent agent (UE) initiates an AI service, the AI service indication information is carried in the IP packet header (such as through the first reserved bit of the Flags field in the IPv4 packet header, or the Flow Label field of the IPv6 packet header, or the extended packet header), and the service class is indicated through the DSCP field; when the end-side intelligent agent matches the QoS flow through the IP five-tuple, if it is detected that the application layer uses the HTTP / HTTPS protocol and indicates the AI service, the DSCP is mapped to the 5QI of the 5G domain according to the cross-domain QoS mapping rule, and the QFI information corresponding to the 5QI is carried in the SDAP packet header; the base station schedules the uplink data packet based on the 5QI of the QoS flow;

[0010] In the downlink direction, the UPF receives the service data packet sent by the application server, the application server is the cloud server and / or the remote intelligent agent of the AI application, or the server providing relay for the communication between the cloud server and the remote intelligent agent of the AI application, if it is detected that the application layer uses the HTTP / HTTPS protocol and indicates the AI service, the DSCP of the IP domain is mapped to the 5QI of the 5G domain according to the N4 mapping rule, GTP-U encapsulation is performed, and the corresponding QFI is carried in the GTP-U packet header; after receiving, the base station decapsulates the GTP-U, obtains the corresponding 5QI value through the QFI carried in the GTP-U packet header, and schedules based on the 5QI;

[0011] Among them, the identification of the application layer protocol is realized through the remote port number and the protocol identifier of the IP five-tuple; the corresponding relationship between the QFI and the 5QI is known through the previous end-to-end PDU session establishment and / or modification process or pre-configuration method.

[0012] As a preferred, when the end-side intelligent agent and the application server send data packets, if it is an AI service, the AI service indication information is carried in the IP packet header, and the service class is indicated through the DSCP field; the IP packet header includes the packet header of the IPv4 data packet and the IPv6 data packet.

[0013] More preferably, for IPv4 packets, the AI traffic indication is indicated by setting the first reserved bit position of the Flags field in the packet header.

[0014] More preferably, for IPv6 packets, the AI traffic indication is carried by the Flow Label field or the extended packet header in the packet header.

[0015] As a preferred, the end-side agent uses the remote port number and the protocol identifier to identify the application layer protocol (for example, TCP 443 for HTTPS and TCP 80 for HTTP) when matching the QoS flow through the IP five-tuple, and if the current service of the end-side agent is a traditional service such as web browsing using HTTP / HTTPS, that is, the AI traffic indication is not set, the DSCP-to-5QI cross-domain mapping is not performed, and the matching is directly performed according to the traditional 5G QoS rule.

[0016] As a preferred, after the end-side agent maps the DSCP of the IP domain to the 5QI of the 5G domain according to the QoS mapping rule, if the QoS flow corresponding to the 5QI has not been established or has been established but needs to update the packet filter, the establishment and / or update of the QoS flow is completed through the PDU session modification process initiated by the end-side agent.

[0017] An electronic device, comprising: a memory and at least one processor;

[0018] The memory has stored thereon a computer program;

[0019] The at least one processor executes the computer program stored in the memory, so that the at least one processor performs the agent communication cross-domain quality of service guarantee method as described above.

[0020] A computer readable storage medium, the computer readable storage medium has stored thereon a computer program, the computer program can be executed by a processor to implement the agent communication cross-domain quality of service guarantee method as described above.

[0021] The agent communication cross-domain quality of service guarantee method, device and medium of the application have the following advantages:

[0022] The network of the application issues cross-domain QoS mapping rules and N4 mapping rules to the end-side agent and the UPF respectively in the session establishment process, and reflects the inter-domain mapping relationship of 5QI and DSCP. For AI services, the IP packet header carries "AI service indication" information, and the service class is indicated through the DSCP field; in five-tuple matching, if it is detected as HTTP / HTTPS protocol and indicates AI service, the DSCP is mapped to 5QI according to the cross-domain QoS mapping rule, and the QFI information corresponding to 5QI is carried in the corresponding packet header (uplink SDAP packet header and downlink GTP-U packet header) for flow identification. The virtual agent on the intelligent terminal and the agent with mobility on the end side provide differentiated QoS for different AI services in the 5G-A / 6G network. BRIEF DESCRIPTION OF DRAWINGS

[0023] The application will be further described below with reference to the accompanying drawings.

[0024] Figure 1 is a schematic diagram of an IPv4 packet header structure; Figure 1

[0025] Figure 2 is a schematic diagram of an agent communication cross-domain service quality guarantee method. Figure 2 DETAILED DESCRIPTION

[0026] The agent communication cross-domain service quality guarantee method, device and medium of the application will be described in detail below with reference to the accompanying drawings and specific examples.

[0027] Embodiment 1

[0028] The embodiment provides an agent communication cross-domain service quality guarantee method. The method is that the network issues cross-domain QoS mapping rules to the end-side agent and issues N4 mapping rules to the UPF in the agent session establishment process. The mapping rules mainly reflect the inter-domain mapping relationship of 5QI and DSCP (i.e. 5G domain and IP domain). In the uplink direction, when the UE (end-side agent) initiates an AI service, the IP packet header carries "AI service indication" information (using the reserved bit of the packet header), and the service class is indicated through the DSCP field. When the UE performs IP five-tuple matching, if it is detected as HTTP / HTTPS protocol and indicates AI service, the DSCP is mapped to 5QI according to the cross-domain QoS mapping rule, and the QFI information corresponding to 5QI is carried in the SDAP packet header. In the downlink direction, the server / proxy agent providing the AI service, or the server providing relay for the communication between the two agents, performs the same action on the IP packet header as the UE, and the UPF performs the same detection on the AI service data packet, maps the DSCP to 5QI according to the N4 mapping rule, and carries the corresponding QFI in the GTP-U packet header. The processing process of the uplink and downlink data packets is as follows:

[0029] ​​In the uplink direction, the end-side agent initiates a service. When matching the QoS flow through the IP five-tuple, if it is detected that the application layer uses the HTTP / HTTPS protocol and is indicated as an AI service, the DSCP of the IP domain is mapped to the 5QI of the 5G domain according to the cross-domain QoS mapping rule, and the QFI information corresponding to the 5QI is carried in the SDAP header. The base station schedules the uplink data packet based on the 5QI of the QoS flow.

[0030] In the downlink direction, the UPF receives the service data packet sent by the application server. The application server is a cloud server / remote agent providing an AI application or a server providing a relay for communication between two agents. If it is detected that the application layer uses the HTTP / HTTPS protocol and is indicated as an AI service, the DSCP of the IP domain is mapped to the 5QI of the 5G domain according to the N4 mapping rule, GTP-U encapsulation is performed, and the corresponding QFI is filled in the GTP-U header. After receiving, the base station decapsulates the GTP-U, obtains the corresponding 5QI value through the QFI carried in the header, and schedules based on the 5QI.

[0031] The cross-domain QoS mapping rule in the embodiment is sent to the end-side agent in the PDU session establishment process of the end-side agent, and the cross-domain QoS mapping rule is carried in the container in the PDU session establishment response message or the PDU session modification command message. The N4 mapping rule is sent to the UPF in the PDU session establishment process. The cross-domain QoS mapping rule and the N4 mapping rule reflect the mapping relationship between the 5G domain 5QI and the IP domain DSCP, which is derived by the SMF according to the received PCC rule or generated according to the local configuration.

[0032] In the embodiment, before the end-side agent initiates a service, if it is an AI service, the IP header carries the "AI service indication" information and sets the DSCP value according to the service requirement.

[0033] In the embodiment, before the application server sends the downlink data packet, if it is an AI service, the IP header carries the "AI service indication" information and sets the DSCP value according to the service requirement.

[0034] In the embodiment, for an IPv4 data packet, the "AI service indication" is indicated by setting the first reserved bit position in the Flags field in the IP header.

[0035] In the embodiment, for an IPv6 data packet, the "AI service indication" is indicated by the Flow Label field or the extension header in the IP header.

[0036] In this embodiment, after the end-side agent maps the DSCP of the IP domain to the 5QI of the 5G domain according to the cross-domain QoS mapping rule, if the QoS flow corresponding to the 5QI has not been established, or has been established but needs to update the packet filter, the establishment / update of the QoS flow is completed through the PDU session modification process initiated by the UE.

[0037] For ease of understanding, the specific implementation process is described below through the design of the IP packet header and the processing flow of the AI service data packet.

[0038] As shown in the accompanying Figure 1 For an IPv4 data packet, the 8-bit TOS field, the first 6 bits are DSCP, and at most 64 different service classes can be defined. The cross-domain QoS mapping rule in this embodiment realizes the mapping of DSCP and 5QI of the 5G domain. The last 2 bits are ECN (Explicit Congestion Notification), which can be used for congestion control when L4S service is enabled. The 3-bit Flags field, of which the first bit is reserved, the second bit DF is the non-segmentation indication bit, and the third bit MF is the more fragmentation indication bit. In this embodiment, the first reserved bit carries the "AI service indication" information. When the first bit is 1, it indicates that the current data packet is an AI service.

[0039] It should be noted that the protocol Protocol field of the IPv4 packet header indicates which transport layer or network layer protocol is used for the payload, and its value is ICMP, IGMP, TCP, UDP, OSPF, etc. The high-level protocol used in the IP five-tuple when matching the QoS flow (identified by the TCP / UDP protocol number + remote port number) has a different meaning.

[0040] For an IPv6 data packet, the "Traffic Class" field is similar to the ToS field of IPv4, and the first 6 bits are used as DSCP, and the last 2 bits are used as ECN markers. At the same time, because the source node replaces the intermediate router for segmentation, the Flags field has been cancelled in the packet header structure, and the "AI service indication" can be carried through the flow label (Flow Label) field or the extended packet header in the packet header.

[0041] As shown in the accompanying Figure 2 The processing process of the AI service data packet processing flow for uplink and downlink data packets is as follows:

[0042] Step 0a, 0b: During the PDU session establishment / modification of the UE (end-side intelligent agent), the network side respectively issues cross-domain QoS mapping rules to the UE and corresponding N4 mapping rules to the UPF, which mainly reflect the inter-domain mapping relationship between 5QI and DSCP. The cross-domain QoS mapping rules and N4 mapping rules are derived by the SMF according to the received PCC rules or generated according to local configuration, and the cross-domain QoS mapping rules sent to the UE side are carried in the container in the PDU session establishment response message or the PDU session modification command message;

[0043] Steps 1-6 are the processing of uplink AI service data packets. The processing process of the uplink AI data packet is as follows:

[0044] Step 1: The UE initiates an AI service, carries "AI service indication" information in the IP packet header (such as through the first reserved bit of the Flags field in the IPv4 header, or the Flow Label field of the IPv6 header or the extended header), and sets the DSCP value according to the service requirements;

[0045] Step 2: When the UE performs QoS flow matching through IP quintuple, if it is detected that the current protocol is HTTP / HTTPS and it is an AI application, the DSCP of the IP header is mapped to 5G domain 5QI according to the cross-domain QoS mapping rule;

[0046] The remote port number and protocol identifier are used to identify the application layer protocol (for example, TCP 443 for HTTPS and TCP 80 for HTTP) when IP quintuple matching is performed. If the current service of the UE is a traditional HTTP / HTTPS web browsing service, i.e., the "AI service indication" is not set, no cross-domain mapping of DSCP to 5QI is performed, and the matching is directly performed according to the traditional 5G QoS rule.

[0047] The base station performs resource scheduling on the uplink data packet according to the 5QI and other parameters of the QoS flow.

[0048] Step 3 (optional): If the QoS flow corresponding to the 5QI has not been established, or has been established but needs to update the packet filter, the establishment / update of the QoS flow is completed through the PDU session modification process initiated by the UE.

[0049] Step 4: The UE fills in the QFI corresponding to the 5QI in the SDAP header sent to the base station. The correspondence between 5QI and QFI can be obtained through the existing NAS interface PDU session establishment / modification process or pre-configuration method.

[0050] Step 5: The base station receives the uplink AI service data packet sent by the UE, performs GTP-U encapsulation, and carries the QFI information in the header.

[0051] Step 6: After receiving the GTP-U data packet, the UPF performs decapsulation and routes to the destination address through the N6 interface.

[0052] Steps 7-9 are the processing of downlink AI service data packets. The downlink data packet processing process is as follows:

[0053] Step 7: For AI services, the application server carries "AI service indication" information in the IP packet header and sets the DSCP value according to the service requirements. The application server can be a cloud server / remote intelligent agent that provides AI applications, or a server that provides relay for communication between two intelligent agents;

[0054] Step 8: When the UPF receives the downlink AI service data packet and performs IP five-tuple matching, if it detects that the current protocol is HTTP / HTTPS and it is an AI application ("AI service indication" is set), it maps the DSCP to 5G domain 5QI according to the N4 mapping rules, performs GTP-U encapsulation, and fills in the corresponding QFI in the GTP-U header;

[0055] Step 9: The base station receives the downlink AI service data packet sent by the UPF, decapsulates the GTP-U, obtains the corresponding 5QI value through the QFI carried in the packet header, and schedules based on the 5QI. The correspondence between QFI and 5QI is obtained through the PDU session resource setup / modification process of the N2 interface in the previous end-to-end PDU session setup / modification process (transferred through the PDU Session Resource Setup Request Transfer IE);

[0056] It should be noted that the correspondence between 5QI and QFI at the UE, base station, and UPF can be obtained through existing mechanisms (PDU session setup / modification process related signaling or pre-configuration method). In the uplink and downlink radio resource scheduling process, 5QI is only the most critical QoS parameter used to define the GBR / non-GBR type, priority level, packet loss rate, and packet delay budget of the QoS flow. In addition, the QoS parameters used in scheduling include ARP, maximum packet loss rate, AMBR (non-GBR flow), uplink and downlink maximum traffic bit rate, and guaranteed traffic bit rate (GBR flow). These parameters are also notified to the UE and gNB through the signaling of the PDU session setup / modification process. The UE / gNB can obtain the complete set of QoS parameters based on 5QI / QFI.

[0057] Embodiment 2:

[0058] The embodiment also provides an electronic device, comprising a memory and a processor;

[0059] The memory stores computer execution instructions.

[0060] The processor executes the computer-executable instructions stored in the memory such that the processor performs the method for guaranteeing quality of service for agent communication across domains in any of the embodiments of the present application.

[0061] The processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), programmable logic devices (PLD) or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, etc. The processor can be a microprocessor or the processor can also be any conventional processor.

[0062] The memory can be used to store computer programs and / or modules, and the processor can realize various functions of the electronic device by running or executing the computer programs and / or modules stored in the memory, and calling data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store operating systems, application programs required by at least one function, etc.; and the data storage area can store data created according to the use of the terminal, etc. In addition, the memory can also include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (SMC), a secure digital (SD) card, a flash card, at least one disk storage device, a flash memory device, or other volatile solid-state memory devices.

[0063] Embodiment 3:

[0064] The embodiment also provides a computer-readable storage medium, in which a plurality of instructions are stored, and the instructions are loaded by a processor to make the processor execute the method for guaranteeing quality of service for agent communication across domains in any of the embodiments of the present application. Specifically, a system or device provided with a storage medium can be provided, and the storage medium stores software program codes for realizing the functions of any of the above embodiments, and the computer (or CPU or MPU) of the system or device reads and executes the program codes stored in the storage medium.

[0065] In this case, the program codes read from the storage medium can realize the functions of any of the above embodiments, and thus the program codes and the storage medium storing the program codes constitute a part of the present application.

[0066] The storage medium for providing the program codes includes a floppy disk, a hard disk, a magneto-optical disk, an optical disk (such as a CD-ROM, a CD-R, a CD-RW, a DVD-ROM, a DVD-RYM, a DVD-RW, a DVD+RW), a magnetic tape, a non-volatile memory card, and a ROM. Alternatively, the program codes can be downloaded from a server computer via a communication network.

[0067] Further, it should be understood that not only the program codes read by the computer can be executed, but also the operating system or the like operating on the computer can be caused to perform part or all of the actual operations based on the instructions of the program codes, thereby realizing the functions of any one of the above-described embodiments.

[0068] Further, it should be understood that the program codes read by the storage medium can be written into the memory provided in the expansion board inserted into the computer or the memory provided in the expansion unit connected to the computer, and then the CPU or the like installed on the expansion board or the expansion unit can be caused to perform part or all of the actual operations based on the instructions of the program codes, thereby realizing the functions of any one of the above-described embodiments.

[0069] Finally, it should be noted that the above-described embodiments are merely used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that the technical solutions recorded in the above-described embodiments can still be modified, or part or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An agent communication cross-domain quality of service guarantee method, characterized in that, The method is that the network issues a cross-domain QoS mapping rule to the end-side agent in the process of establishing an agent session and issues an N4 mapping rule to the UPF, reflecting the inter-domain mapping relationship between 5QI and DSCP, i.e., the 5G domain and the IP domain; wherein the cross-domain QoS mapping rule and the N4 mapping rule are derived by the SMF according to the received PCC rule or generated according to local configuration, and the cross-domain QoS mapping rule sent to the end-side agent is carried in a container in the PDU session establishment response message or the PDU session modification command message; The processing procedure of the uplink and downlink data packets is as follows: In the uplink direction, when the end-side agent initiates a service, if it is detected that the application layer uses the HTTP / HTTPS protocol and indicates an AI service when matching the QoS flow through the IP five-tuple, the DSCP is mapped to the 5QI of the 5G domain according to the cross-domain QoS mapping rule, and the QFI information corresponding to the 5QI is carried in the SDAP packet header, and the base station schedules the uplink data packet based on the 5QI of the QoS flow; In the downlink direction, the UPF receives the service data packet sent by the application server, the application server is the cloud server and / or the remote agent of the AI application, or the server providing a relay for the communication between the cloud server and the remote agent of the AI application, if it is detected that the application layer uses the HTTP / HTTPS protocol and indicates an AI service, the DSCP of the IP domain is mapped to the 5QI of the 5G domain according to the N4 mapping rule, GTP-U encapsulation is performed, and the corresponding QFI is carried in the GTP-U header; after receiving, the base station decapsulates the GTP-U, obtains the corresponding 5QI value through the QFI carried in the GTP-U header, and schedules based on the 5QI; Wherein, the identification of the application layer protocol is realized through the remote port number and the protocol identifier of the IP five-tuple; the corresponding relationship between the QFI and the 5QI is known through the previous end-to-end PDU session establishment and / or modification process or pre-configuration method.

2. The method of claim 1, wherein, When the end-side agent and the application server send data packets, if it is an AI service, the "AI service indication" information is carried in the IP header, and the service class is indicated through the DSCP field; the IP header includes the header of the IPv4 packet and the IPv6 packet.

3. The method of claim 2, wherein, For the IPv4 packet, the "AI service indication" is indicated by setting the first reserved bit position in the Flags field in the header.

4. The method of claim 2, wherein, For the IPv6 packet, the "AI service indication" is carried in the flow label field or the extension header.

5. The method of claim 1, wherein, When the end-side agent matches the QoS flow through the IP five-tuple, the remote port number and the protocol identifier are used to identify the application layer protocol, if the current service of the end-side agent is a traditional service such as web browsing using HTTP / HTTPS, i.e., the "AI service indication" is not set, the cross-domain mapping of DSCP to 5QI is not performed, and the matching is directly performed according to the traditional 5G QoS rule.

6. The method of claim 1, wherein, After the end-side intelligent agent maps the DSCP of the IP domain to the 5QI of the 5G domain according to the QoS mapping rule, if the QoS flow corresponding to the 5QI has not been established or has been established but needs to update the packet filter, the establishment and / or update of the QoS flow is completed through the PDU session modification process initiated by the end-side intelligent agent.

7. An electronic device, comprising: Comprise: a memory and at least one processor; wherein the memory has stored thereon a computer program; the at least one processor executes the computer program stored in the memory, so that the at least one processor executes the intelligent agent communication cross-domain service quality guarantee method according to any one of claims 1 to 6.

8. A computer-readable storage medium, characterized in that, The computer readable storage medium has stored therein a computer program, which can be executed by a processor to implement the intelligent agent communication cross-domain service quality guarantee method according to any one of claims 1 to 6.

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