CN117834712A

CN117834712A - Data packet transmission method and related equipment

Info

Publication number: CN117834712A
Application number: CN202211201254.0A
Authority: CN
Inventors: 张卓筠
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2024-04-05

Abstract

The embodiment of the disclosure provides a data packet transmission method and related equipment, and belongs to the technical field of communication. The method is performed by a network device, the method comprising: acquiring service quality configuration file information aiming at a data packet group; if the quality of service profile information for the data packet group cannot be satisfied, a first notification message is sent to indicate that the network device cannot satisfy the quality of service profile information for the data packet group. By the scheme provided by the embodiment of the disclosure, the network equipment can acquire the service quality configuration file information aiming at the data packet group, and can also detect whether the network equipment can meet the service quality configuration file information aiming at the data packet group and carry out corresponding notification when the service quality configuration file information cannot be met.

Description

Data packet transmission method and related equipment

Technical Field

The present disclosure relates to the field of communication technologies, and in particular, to a data packet transmission method, a communication device, a computer readable storage medium, and a computer program product.

Background

In the related art, in the process of transmitting a data packet by a network, a network device (for example, a base station) performs transmission control by taking the data packet as a unit, so that transmission cannot meet the requirements of an actual application scenario, and when the network device cannot meet the quality of service parameters for the data packet, a corresponding scheme is not provided for solving the problem.

Disclosure of Invention

Embodiments of the present disclosure provide a data packet transmission method, a communication device, a computer-readable storage medium, and a computer program product, capable of optimizing a transmission process of a data packet.

An embodiment of the present disclosure provides a data packet transmission method, which is performed by a network device, the method including: acquiring service quality configuration file information aiming at a data packet group; if the quality of service profile information for the data packet group cannot be satisfied, a first notification message is sent to indicate that the network device cannot satisfy the quality of service profile information for the data packet group.

An embodiment of the present disclosure provides a data packet transmission method, which is performed by a target network device, the method including: acquiring service quality configuration file information aiming at a data packet group; and if the service quality configuration file information for the data packet group cannot be met, sending a fifth notification message to indicate that the target network equipment cannot meet the service quality configuration file information for the data packet group.

The embodiment of the disclosure provides a data packet transmission method, which is executed by a session management function network element, and comprises the following steps: acquiring a first policy control charging rule; generating service quality configuration file information for a data packet group and first candidate service quality configuration file information for the data packet group according to the first policy control charging rule; the quality of service profile information for the set of data packets is sent and the first candidate quality of service profile information for the set of data packets is sent.

The embodiment of the disclosure provides a data packet transmission method, which is executed by a network element with a policy control function, and comprises the following steps: receiving service demand information for a data packet group; generating a first policy control charging rule according to the service demand information for the data packet group; and sending the first policy control charging rule to indicate to generate the service quality configuration file information for the data packet group and the first candidate service quality configuration file information for the data packet group.

The embodiment of the disclosure provides a data packet transmission method, which is executed by an application function network element, and comprises the following steps: transmitting service demand information for the data packet group to indicate generation of a first policy control charging rule; the first policy control charging rule is used for indicating to generate service quality configuration file information for the data packet group and first candidate service quality configuration file information for the data packet group.

The embodiment of the disclosure provides a network device, comprising: a receiving unit, configured to obtain service quality configuration file information for a packet group; and a sending unit, configured to send a first notification message to indicate that the network device cannot meet the quality of service profile information for the packet group if the quality of service profile information for the packet group cannot be met.

The embodiment of the disclosure provides a target network device, which comprises: a receiving unit, configured to obtain service quality configuration file information for a packet group; and a sending unit, configured to send a fifth notification message to indicate that the target network device cannot meet the quality of service profile information for the packet group if the quality of service profile information for the packet group cannot be met.

The embodiment of the disclosure provides a session management function network element, which comprises: the receiving unit is used for acquiring a first policy control charging rule; the processing unit is used for generating service quality configuration file information and first candidate service quality configuration file information aiming at the data packet group according to the first policy control charging rule; and the sending unit is used for sending the service quality configuration file information and the first candidate service quality configuration file information aiming at the data packet group.

The embodiment of the disclosure provides a policy control function network element, which comprises: a receiving unit, configured to receive service requirement information for a packet group; the processing unit is used for generating a first policy control charging rule according to the service demand information aiming at the data packet group; and the sending unit is used for sending the first policy control charging rule so as to instruct the generation of the service quality configuration file information aiming at the data packet group and the first candidate service quality configuration file information aiming at the data packet group.

The embodiment of the disclosure provides an application function network element, which comprises: a sending unit, configured to send service requirement information for a packet group to indicate generation of a first policy control charging rule; the first policy control charging rule is used for indicating to generate service quality configuration file information for the data packet group and first candidate service quality configuration file information for the data packet group.

The disclosed embodiments provide a communication device including: one or more processors; and a memory configured to store one or more programs that, when executed by the one or more processors, cause the communication device to implement the data packet transmission method described in the embodiments of the present disclosure.

The embodiments of the present disclosure provide a computer-readable storage medium having stored thereon a computer program which, when run on a computer, causes the computer to perform the data packet transmission method described in the embodiments of the present disclosure.

The disclosed embodiments provide a computer program product comprising a computer program which, when executed by a computer, implements the data packet transmission method described in the disclosed embodiments.

In one aspect, a network device may obtain service quality profile information for a packet group, so as to optimize a network transmission process of a packet (e.g., a multimedia packet), and divide the packet into different packet groups to implement packet transmission of the packet; on the other hand, when the network device detects that the quality of service profile information for the data packet group cannot be satisfied, a first notification message may be sent to notify the network device that the quality of service profile information for the data packet group cannot be satisfied.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture provided in an embodiment of the present disclosure.

Fig. 2 is a system architecture diagram of a 5G network provided in an embodiment of the present disclosure.

Fig. 3 schematically illustrates a flow chart of a data packet transmission method according to an embodiment of the present disclosure.

Fig. 4 schematically illustrates a flow chart of a data packet transmission method according to another embodiment of the present disclosure.

Fig. 5 schematically illustrates a flow chart of a data packet transmission method according to a further embodiment of the present disclosure.

Fig. 6 schematically illustrates a flow chart of a data packet transmission method according to a further embodiment of the present disclosure.

Fig. 7 schematically illustrates a flow chart of a data packet transmission method according to still another embodiment of the present disclosure.

Fig. 8 schematically illustrates an interactive schematic diagram of a data packet transmission method according to an embodiment of the disclosure.

Fig. 9 schematically illustrates a flow chart of a data packet transmission method according to still another embodiment of the present disclosure.

Fig. 10 schematically illustrates a flow chart of a data packet transmission method according to still another embodiment of the present disclosure.

Fig. 11 schematically illustrates an interactive schematic diagram of a data packet transmission method according to another embodiment of the present disclosure.

Fig. 12 schematically illustrates a flow chart of a data packet transmission method according to still another embodiment of the present disclosure.

Fig. 13 schematically illustrates a block diagram of a network device according to an embodiment of the disclosure.

Fig. 14 schematically illustrates a block diagram of a target network device according to an embodiment of the disclosure.

Fig. 15 schematically illustrates a block diagram of a session management function network element according to an embodiment of the present disclosure.

Fig. 16 schematically illustrates a block diagram of a policy control function network element according to an embodiment of the disclosure.

Fig. 17 schematically illustrates a block diagram of a communication device according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present disclosure more apparent, exemplary embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. It should be understood that: the embodiments described herein are merely illustrative and should not be construed as limiting the scope of the present disclosure.

The technical solution of the embodiment of the present disclosure may be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) systems, general packet radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) communication systems, 5G systems or future evolution mobile communication systems, and the like.

Illustratively, a communication system 100 to which embodiments of the present disclosure apply is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminals located within the coverage area. Alternatively, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, a base station in a 5G communication system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

The communication system 100 further includes at least one terminal 120 located within the coverage area of the network device 110. "terminal" as used herein includes, but is not limited to, connection via wireline, such as via public-switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminals arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a 5G network or a terminal in a future evolved PLMN, etc.

Alternatively, direct to Device (D2D) communication may be performed between the terminals 120.

Fig. 1 illustrates one network device and two terminals, alternatively, the communication system 100 may include multiple network devices and each network device may include other numbers of terminals within its coverage area, which is not limited by the disclosed embodiments.

Optionally, the communication system 100 may further include other network elements such as a policy control function element, an access and mobility management function element, and the embodiment of the present disclosure is not limited thereto.

It should be understood that devices having communication functions in the network/system in embodiments of the present disclosure may be referred to as communication devices. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include the network device 110 and the terminal 120 with communication functions, where the network device 110 and the terminal 120 may be the specific devices described above, which are not described herein again.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.

Fig. 2 is a system architecture diagram of a 5G network according to an embodiment of the disclosure, and as shown in fig. 2, devices involved in the 5G network system include: a terminal (UE), a radio access Network (Radio Access Network, RAN), a user plane function (User Plane Function, UPF) Network element, a Data Network (DN), an access and mobility management function (Access and Mobility Management Function, AMF) Network element, a session management function (Session Management Function, SMF) Network element, a policy control function (Policy Control Function, PCF) Network element, an application function (Application Function, AF) Network element, an authentication server function (Authentication Server Function, AUSF) Network element, a unified Data management (Unified Data Management, UDM) Network element.

Fig. 3 schematically illustrates a flow chart of a data packet transmission method according to an embodiment of the present disclosure. The method provided by the embodiment of fig. 3 may be performed by a network device (e.g., a base station), which in the embodiment of the present disclosure may be, for example, network device 110 of fig. 1, but the present disclosure is not limited thereto. As shown in fig. 3, a method provided by an embodiment of the present disclosure may include:

in S310, quality of service profile information (QoS profile), which may be abbreviated PS, is obtained for a Set of packets (i.e., PDU (Protocol Data Unit, protocol data unit) in a quality of service (Quality of Service, qoS) flow (flow).

In the embodiment of the disclosure, the network device may acquire the QoS profile for the packet group from the session management function network element. QoS flow refers to a traffic flow formed by transmitting, in a network, an uplink data packet sent by a terminal and/or a downlink data packet sent by a service server, for a certain or certain target traffic of a UE, where the target traffic may be set according to actual requirements. For example, the target service may be a multimedia service, and the corresponding data packet includes a multimedia data packet, but the present disclosure is not limited thereto.

In the embodiments of the present disclosure, network transmission of data packets (e.g., multimedia data packets) is optimized, packet transmission is performed for data packets (e.g., multimedia data packets), data packets having the same or similar characteristics and/or having strong interdependencies are divided into the same data packet group, and data packets not having the same or similar characteristics or having strong interdependencies are divided into different data packet groups. In the disclosed embodiments, the packets may be grouped in a variety of suitable ways.

In some embodiments, the groups may be divided according to different characteristics of the packets, the packets having the same or similar characteristics may be divided into the same group, the packets having different characteristics may be divided into different groups, for example, several audio packets may be divided into the same group, several video packets may be divided into the same group, or one I-frame packet of the video packets may be divided into the same group, one P-frame packet may be divided into another group, and 1B-frame packet may be divided into other groups. The packets of the base layer of one of the video frames may be divided into the same group, or the packets of the enhancement layer of the one of the video frames may be divided into the same group.

In other embodiments, the groups may be partitioned according to dependencies between packets, packets with dependencies may be partitioned into the same group, and packets without dependencies may be partitioned into different groups. Whether there is an interdependence or a strong interdependence between different data packets may be set according to the actual scene requirements, e.g. whether there is an interdependence between data packets to enable correct decoding and/or correct reception.

In judging whether different data packets have closer dependencies, the configuration may be performed according to an actual scenario, for example, if the data packets transmit encoded image or video data, the data packets of the encoded image or video may be decoded according to a client side (may correspond to a terminal side) or a service server side after receiving the data packets of the encoded image or video, whether other data packets need to be referred to or not, when decoding, different data packets having reference or referred relationships may be regarded as having closer dependencies, and when decoding, different data packets not having reference or referred relationships may be regarded as not having closer dependencies.

In still other embodiments, the groups may be further divided according to the importance of the data packet, the critical information in the target traffic is divided into the same group, and the non-critical information is divided into another group. The specific information is used as the key information, and the specific information is used as the non-key information, which can be set according to the actual requirement, and the disclosure is not limited.

In still other embodiments, the partitioning of the packet groups may be performed by integrating two or more factors of the important procedures, dependencies, similarities or differences in characteristics, etc. of the packets. For example, the data packets of the critical information and the non-critical information having the dependency relationship in the target service flow may be divided into one data packet group, the data packets of the other critical information and the non-critical information having the dependency relationship may be divided into another data packet group, the number of the packets is not limited, and the several data packet groups may have dependencies or may not have dependencies. The present disclosure does not limit the manner in which the packet group is partitioned.

In the embodiment of the present disclosure, taking a 5G network transmission mechanism and a multimedia data packet as an example (but the present disclosure is not limited thereto), qoS scheduling is proposed for a data packet group in a network for the multimedia data packet, qoS profile information for the data packet group is defined, and the QoS profile information for the data packet group may include QoS parameters for the data packet group, for example, at least one of a psur (PDU Set Error Rate, a packet error rate or a packet error rate), a PSDB (PDU Set Delay Budget, a packet delay budget), and the like, and may further include at least one of a GFBR (Guaranteed Flow Bit Rate, guaranteed stream bit rate), an MFBR (Max Flow Bit Rate, maximum stream bit rate), and the like.

Wherein the PSDB defines an upper delay bound for the transmission of a packet group between the UE and the UPF network element. PSER refers to the upper limit on the measurement window (a measurement window) for the ratio between the number of unsuccessfully received packets within a packet group and the total number of packets within that packet group that are transmitted. The detailed definitions of PSDB and PSER follow the relevant specifications or research reports of 3 GPP.

In the embodiment of the present disclosure, the QoS flow may be a QoS flow of GBR (Guaranteed Bit Rate ) or a QoS flow of non-GBR (non-guaranteed bit rate), and the feasibility is greater, but the present disclosure is not limited thereto. If the QoS flow is used for non-GBR, the QoS parameters for the data packet group do not need to contain GFBR and MFBR information; the QoS parameters for the packet group may further include at least one of GFBR information and MFBR information if it is QoS flow for GBR.

In S320, if the qos profile information for the packet group cannot be satisfied, a first notification message is sent to indicate that the network device cannot satisfy the qos profile information for the packet group.

In the embodiment of the disclosure, the network device may send the first notification message to the session management function network element. The embodiments of the present disclosure propose a QoS enhancement mechanism for a packet group, and when a network device, for example, a base station, detects that QoS profile information of a current packet group cannot be satisfied, for example, PSDB, PSER, GFBR, a notification message (for distinction, referred to as a first notification message) that QoS profile information for a packet group cannot be satisfied is sent to an SMF.

In an exemplary embodiment, the network device, e.g., the base station, may also obtain updated QoS profile information for the packet group from the SMF; after the base station receives the updated QoS profile information, the QoS profile information for the packet group previously received from the SMF may be replaced with the updated QoS profile information for the packet group.

According to the data packet transmission method provided by the embodiment of the disclosure, on one hand, network equipment can acquire service quality configuration file information for a data packet group (for example, from an SMF) so as to optimize a network transmission process of a data packet (for example, a multimedia data packet), and divide the data packet into different data packet groups to realize packet transmission of the data packet; on the other hand, when the network device detects that the quality of service profile information for the packet group cannot be satisfied, a first notification message may be sent (e.g., to the SMF) to notify (e.g., the SMF) that the network device cannot satisfy the quality of service profile information for the packet group.

In an exemplary embodiment, the method may further include: acquiring first candidate service quality configuration file information aiming at the data packet group; if the service quality configuration file information aiming at the data packet group cannot be met, detecting whether the first candidate service quality configuration file information can be met or not; if the first candidate quality of service profile information can be satisfied, a second notification message is sent (e.g., to the SMF) to indicate that the network device can satisfy the first candidate quality of service profile information.

In the embodiment of the disclosure, the network device may obtain, in addition to the QoS profile information for the packet group from the SMF, the candidate QoS profile information (may include the first candidate QoS profile information, optionally, may also include updated second candidate QoS profile information) for the packet group from the SMF.

The candidate QoS profile information for the packet group in the embodiment of the present disclosure refers to QoS profile information that is provided to the network device for the network device to select for the packet group when the QoS profile information for the packet group cannot be satisfied, and thus may also be referred to as optional QoS profile information for the packet group, or other available QoS profile information for the packet group. That is, for a packet group, i.e., a PDU Set, optional QoS profile information for the packet group may be defined, which may include optional QoS parameters for the packet group. The selectable QoS profile information for the packet group may be provided to the network device for enabling QoS notification and control for the packet group in QoS flow.

In the embodiment of the disclosure, the PCF may set PCC (Policy and Charging Control, policy control charging rule) rules (including a first PCC rule and a second PCC rule) according to various factors including an operator policy, network information, service requirement information for a packet group received from the AF, and the like, and then send the PCC rules to the SMF to instruct the SMF to generate QoS profile information for the packet group and QoS profile information for the packet group that is selectable according to the received PCC rules, and the SMF may send the generated QoS profile information for the packet group and QoS profile information for the packet group that is selectable to a network device, such as a base station, and may refer to the QoS profile information for the packet group that is generated according to the first PCC rule and QoS profile information for the packet group that is selectable according to the second PCC rule as QoS profile information for the packet group and QoS profile information for the packet group that is selectable according to the second PCC rule.

In an exemplary embodiment, the first candidate quality of service profile information comprises a first candidate quality of service parameter for the group of data packets, wherein: the first candidate quality of service parameter includes at least one of a packet group delay budget and a packet group error rate for the packet group; and if the service quality stream corresponding to the data packet group is a guaranteed bit rate service quality stream, the first candidate service quality parameter further comprises a guaranteed bit rate for the data packet group.

In an embodiment of the present disclosure, the first candidate QoS profile information may include a first candidate QoS parameter for the packet group. If the QoS flow is a QoS flow of GBR, the first candidate QoS parameter may include at least one of parameter information such as PSDB, PSER, GFBR, and if the QoS flow is a QoS flow of non-GBR, the first candidate QoS parameter does not need to include GFBR information.

In an exemplary embodiment, the method may further include: if the first candidate quality of service profile information cannot be satisfied, a fourth notification message is sent (e.g., to the SMF) to indicate that the network device cannot satisfy the first candidate quality of service profile information.

Fig. 4 schematically illustrates a flow chart of a data packet transmission method according to another embodiment of the present disclosure. The method provided by the embodiment of fig. 4 may be performed by a network device, as shown in fig. 4, and the method provided by the embodiment of the disclosure may include:

in S410, quality of service profile information and first candidate quality of service profile information for a packet group are obtained.

In the embodiment of the disclosure, the network device, for example, the base station, may obtain QoS profile information (for distinction, referred to as first QoS profile information) for the packet group in the QoS flow and first candidate QoS profile information for the packet group from the SMF.

In S420, if the qos profile information for the packet group cannot be satisfied, a first notification message is sent (e.g., to the SMF), and it is detected whether the first candidate qos profile information can be satisfied.

When the network device detects that the current wireless state cannot meet the first QoS profile information received from the SMF, the network device may send a first notification message to the SMF to indicate that the network device cannot meet the first QoS profile information currently. In addition, the network device may further continue to detect whether the current wireless state may satisfy the first candidate QoS profile information provided by the SMF for the packet group. The present disclosure does not limit the form of the first notification message, for example, the first notification message may carry some or all of the first QoS profile information that the network device can currently satisfy, or the SMF may assign a unique identifier or reference information (reference) to the first QoS profile information in advance, for example, a reference ID (identity), which may be referred to as reference information (may also be referred to as another name, as long as the first QoS profile information can be uniquely identified), the SMF may provide the reference information to the network device, and the first notification message carries the reference information, which may indicate that the network device can satisfy the first QoS profile information, thereby reducing the amount of data interaction between the network device and the SMF.

In S430, if the first candidate quality of service profile information can be satisfied, a second notification message is sent (e.g., to the SMF) to indicate that the network device can satisfy the first candidate quality of service profile information.

If the network device detects that the current wireless state can meet the first candidate QoS profile information, the network device may send a second notification message to the SMF to notify the SMF that the network device can meet the first candidate QoS profile information. The present disclosure does not limit the form of the second notification message, for example, the second notification message may carry some or all of the first candidate QoS profile information that the network device can currently satisfy, or the SMF may assign a unique identifier or reference information (reference) to the first candidate QoS profile information in advance, for example, a reference ID (identity), which may be referred to as first candidate reference information (may also be referred to as another name, as long as the first candidate QoS profile information can be uniquely identified), and the SMF may provide the first candidate reference information to the network device, and the second notification message carries the first candidate reference information, which may indicate that the network device can satisfy the first candidate QoS profile information, thereby reducing the amount of data interaction between the network device and the SMF.

If the first candidate quality of service profile information cannot be satisfied, a fourth notification message is sent (e.g., to the SMF) to indicate that the network device cannot satisfy the first candidate quality of service profile information in S440.

When the network device detects that the current wireless state cannot meet the first candidate QoS profile information, the network device may send a fourth notification message to the SMF to notify the SMF that the network device cannot meet the first candidate QoS profile information. The present disclosure does not limit the form of the fourth known message, for example, the fourth known message may carry some or all of the first candidate QoS profile information that cannot be currently satisfied by the network device, or the fourth known message may carry the first candidate reference information, which may indicate that the network device cannot satisfy the first candidate QoS profile information, thereby reducing the amount of data interaction between the network device and the SMF.

According to the data packet transmission method provided by the embodiment of the disclosure, on one hand, qoS control is performed on the data packet group of the target service flow, so that network transmission control can be optimized; on the other hand, the problem of how to process the base station when the network equipment such as the base station cannot meet the existing QoS profile information of the data packet group is solved, namely whether the first candidate QoS profile information provided by the SMF can be continuously detected according to the requirement of the network.

In an exemplary embodiment, the first candidate quality of service profile information may include a plurality of first candidate quality of service profile information. Wherein the method may further comprise: a first priority corresponding to each of the first candidate quality of service profile information is obtained (e.g., from the SMF). Wherein detecting whether the first candidate quality of service profile information can be satisfied may include: and detecting whether the first candidate service quality configuration file information can be met according to the first priority of the first candidate service quality configuration file information.

In an exemplary embodiment, if the first candidate quality of service profile information can be satisfied, sending (e.g., to the SMF) a second notification message to indicate that the network device can satisfy the first candidate quality of service profile information may include: and if the first target candidate qos profile information in the first candidate qos profile information can be satisfied, sending the second notification message (e.g., to the SMF).

In an exemplary embodiment, the second notification message may include first target reference information of the first target candidate quality of service profile information to indicate that the network device is able to satisfy the first target candidate quality of service profile information.

In the embodiment of the disclosure, when providing the QoS profile information for the data packet group to the RAN according to the indication of the first PCC rule provided by the PCF, the SMF may also provide optional QoS profile information for the data packet group with a priority order, that is, if the first candidate QoS profile information provided to the RAN is multiple, a first priority may be allocated to each first candidate QoS profile information, when the RAN detects that the QoS profile information for the data packet group cannot be satisfied, the SMF may sequentially detect, according to the order indicated by the first priority, which first candidate QoS profile information of the multiple first candidate QoS profile information can be satisfied by the current radio state, and after the first candidate QoS profile information of a certain high priority in the matching is first candidate QoS profile information, the detection of the first candidate QoS profile information of a subsequent low priority may be stopped, and when the RAN detects that the QoS profile information of the matching high priority is the first candidate QoS profile information as the first target QoS profile information. Alternatively, the reference information of the first target candidate QoS profile information may be referred to as first target reference information, and the second notification message may carry the first target reference information to indicate that the network device can currently meet the first target candidate QoS profile information, but the disclosure is not limited thereto, and the second notification message may notify the SMF in any suitable manner, for example, may directly carry at least part of the information in the first target candidate QoS profile information that can be met.

Fig. 5 schematically illustrates a flow chart of a data packet transmission method according to a further embodiment of the present disclosure. The method provided by the embodiment of fig. 5 may be performed by a network device, as shown in fig. 5, and the method provided by the embodiment of the disclosure may include:

in S510, quality of service profile information, a plurality of first candidate quality of service profile information, and their respective first priorities for the group of data packets are obtained (e.g., from the SMF).

For example, the information provided by the SMF to the RAN may include the following:

1) QoS profile information 1 for packet group: qoS parameter information 1 for a packet group is included;

optionally, reference information 1 of QoS profile information 1 for the packet group may also be included.

2) The plurality of optional QoS profile information 2 for the packet group may further include:

the QoS profile information 21, the first candidate reference information 1 and the corresponding first priority 1 of the optional data packet group;

……

the optional QoS profile information 2n for the packet group, the first candidate reference information n and the first priority n corresponding thereto, n being a positive integer greater than 1.

The first priorities 1 to n may be arranged in descending order, i.e., the first priority 1 is higher than the first priority 2, the first priority 2 is higher than the first priority 3, and so on, and the first priority n is the lowest priority, but the present disclosure is not limited thereto.

If the qos profile information for the packet group cannot be satisfied, a first notification message is sent (e.g., to the SMF) and whether each of the first candidate qos profile information can be satisfied is detected in the order of the first priority in S520.

The first notification message may carry reference information 1 to indicate that the network device cannot meet the QoS profile information 1 of the packet group, and sequentially detect, according to the order of the first priorities 1 to n, optional QoS profile information of the packet group, which may meet the target corresponding to the reference information 1, where the optional QoS profile information of the packet group belongs to one of 21 to 2n (i.e., the first target candidate QoS profile information).

In S530, if the first target candidate quality of service profile information in the first candidate quality of service profile information can be satisfied, a second notification message is sent (e.g., to the SMF), where the second notification message may include the first target reference information to indicate that the network device can satisfy the first target candidate quality of service profile information.

For example, assuming that the current wireless state of the network device is detected to be capable of satisfying the optional QoS profile information 21 for the packet group, the optional QoS profile information 21 for the packet group is taken as first target candidate QoS profile information for the packet group, and the first candidate reference information 1 is taken as first target reference information.

In S540, if any of the first candidate qos profile information cannot be satisfied, a fourth notification message is sent (e.g., to the SMF) to indicate that the network device cannot satisfy any of the first candidate qos profile information.

If the base station sequentially detects that the optional QoS profile information 2n for the data packet group cannot be met according to the priority order, that is, any one of the optional QoS profile information for the data packet group cannot be met, the base station sends a fourth notification message to the SMF to indicate that the optional QoS profile information for the data packet group with the lowest priority cannot be met. The indication mode of the fourth known message is not limited.

According to the data packet transmission method provided by the embodiment of the disclosure, the SMF can provide the RAN with a plurality of first candidate QoS profile information with priority orders and the first priorities corresponding to the first candidate QoS profile information, so that when detecting that the network equipment cannot meet the QoS profile information for the data packet group, the SMF can continuously detect whether the first candidate QoS profile information can be met according to the priority orders.

In an exemplary embodiment, the method may further include: a third notification message is sent (e.g., to the SMF) when it is detected that the quality of service profile information or a second target candidate quality of service profile information of the first candidate quality of service profile information can be satisfied. Wherein the third notification message includes reference information of the quality of service profile information or second target reference information of the second target candidate quality of service profile information to indicate that the network device is capable of satisfying the quality of service profile information or the second target candidate quality of service profile information.

Fig. 6 schematically illustrates a flow chart of a data packet transmission method according to a further embodiment of the present disclosure. The embodiment of fig. 6 differs from the embodiment of fig. 5 in that it may further include:

in S610, when it is detected that the quality of service profile information or the second target candidate quality of service profile information can be satisfied, a third notification message is sent (e.g., to the SMF) to indicate that the network device can satisfy the quality of service profile information or the second target candidate quality of service profile information.

According to the data packet transmission method provided by the embodiment of the disclosure, after the network device sends the first notification message or the second notification message to the SMF, if the network device detects that the current wireless state can meet the QoS profile information for the data packet group again or can meet the first target candidate QoS profile information different from the first target candidate QoS profile information indicated in the second notification message, the network device can send the third notification message to the SMF again, and if the network device detects that the current wireless state can meet the QoS profile information for the data packet group again, the third notification message is used for indicating that the network device can meet the QoS profile information for the data packet group; if the network device detects that the current wireless state can meet the second target candidate QoS profile information different from the first target candidate QoS profile information, the third notification message is used to indicate that the network device can meet the second target candidate QoS profile information for the packet group, and the third notification message may carry the second target reference information to indicate, but the disclosure is not limited thereto, and may also carry at least part of the second target candidate QoS profile information to indicate, for example.

In an exemplary embodiment, the method may further include: obtaining (e.g., from the SMF) second candidate quality of service profile information for the group of data packets; and replacing the first candidate service quality configuration file information by the second candidate service quality configuration file information.

Fig. 7 schematically illustrates a flow chart of a data packet transmission method according to still another embodiment of the present disclosure. The method provided by the embodiment of fig. 7 may be performed by a network device, and as shown in fig. 7, the method provided by the embodiment of the disclosure may include:

in S710, quality of service profile information and first candidate quality of service profile information for a group of data packets are obtained (e.g., from an SMF).

In S720, second candidate quality of service profile information for the group of data packets is obtained (e.g., from the SMF).

In the embodiment of the disclosure, when the SMF receives a new second PCC rule from the PCF, the SMF may generate second candidate QoS profile information and/or second QoS profile information for the packet group according to an indication of the second PCC rule.

In S730, the first candidate quality of service profile information is replaced with the second candidate quality of service profile information.

When the network device receives updated second candidate QoS profile information for the packet group from the SMF, the network device may replace the previous first candidate QoS profile information with the updated second candidate QoS profile information for the packet group and/or replace the previous first QoS profile information with the second QoS profile information.

The data packet transmission method provided by the embodiment of the disclosure further provides QoS profile information for the data packet group and an optional updating mechanism for the QoS profile information of the data packet group.

Fig. 8 schematically illustrates an interactive schematic diagram of a data packet transmission method according to an embodiment of the disclosure. As shown in fig. 8, taking a network device as a base station for illustration, a method provided by an embodiment of the disclosure may include:

in S81, the UE establishes a PDU session.

In the disclosed embodiment, the UE has established a PDU session for the target service (e.g., a specific target DNN (Data Network Name, data network name), target S-nsai (Single Network Slice Selection Assistance information )).

At PDU session establishment, according to the indication of the first PCC rule, the SMF also provides the first candidate QoS profile information for the packet group in priority order when providing the first QoS profile information for the packet group to the RAN.

When the SMF subsequently provides updated second candidate QoS profile information for the packet group to the base station, the base station may replace the previously stored relevant information.

If the SMF does not provide the first candidate QoS profile information for the packet group to the base station when the PDU session is established, the SMF may also trigger a modification procedure of the PDU session to provide the first candidate QoS profile information for the packet group to the base station.

In S82, the base station transmits a notification message (including a first notification message, a second notification message, and a fourth notification message) to the AMF, which transmits the received notification message to the SMF.

For the QoS profile information of the packet group, when the base station detects that the QoS profile of the current packet group cannot be satisfied, such as PSDB, PSER, etc., the first notification message that cannot be satisfied is sent to the SMF through the AMF.

Meanwhile, the base station checks whether a certain optional QoS profile information for the data packet group can be met according to the priority order of the optional QoS profile information for the data packet group, and if the current wireless state can meet the certain optional QoS profile for the data packet group, the base station sends a second notification message to the SMF through the AMF, wherein the second notification message can include reference information (called first target reference information) of the optional QoS profile information (called first target candidate QoS profile information) which can be met, so as to indicate the optional QoS profile information for the data packet group which can be met currently by the SMF.

If the base station cannot meet any of the optional QoS profile information for the packet group, the base station sends a fourth notification message to the SMF, and indicates that the QoS profile information for the packet group with the lowest priority cannot be met.

In S83, the SMF sends the received notification message to the PCF.

After the SMF receives any one of the first notification message, the second notification message, or the fourth notification message sent by the base station, the SMF sends the received notification message to the PCF to inform the PCF of QoS profile information (may be QoS profile information for a packet group or the first target candidate QoS profile information, or any one of the QoS profile information is not satisfied) currently supported by the PCF for the packet group. The PCF decides whether the first PCC rule needs to be modified or the network policy information is adjusted or opened to the AF.

In S84, when the base station detects that the QoS profile information of the satisfiable packet group is different from the optional QoS profile information for the packet group indicated in the notification previously transmitted.

After the base station sends a notification message (for example, the second notification message) containing optional QoS profile information for the packet group to the SMF, if the base station detects that the currently implemented QoS profile information for the packet group is different from the optional QoS profile information for the packet group indicated in the second notification message sent before (the currently implemented QoS profile information for the packet group may be the QoS profile information for the packet group or the second target candidate QoS profile information), the base station triggers S85.

In S85, the base station transmits a notification message (here, a third notification message) to the AMF, which transmits the received notification message to the SMF.

The base station sends a third notification message to the SMF and indicates the reference information of the QoS profile information of the data packet group which can be met currently and optionally, such as the second target reference information, so as to indicate that the second target candidate QoS profile information of the data packet group can be met; or, indicate that the QoS profile information for the packet group may be satisfied; or, the first candidate QoS profile information and the QoS profile information for any one of the packet groups are indicated not to be satisfied.

In S86, the SMF sends the received notification message to the PCF.

After the SMF receives the notification of the base station, the SMF notifies the PCF of the QoS profile information currently supported by the PCF for the data packet group or the second target candidate QoS profile information for the data packet group.

Optionally, after the SMF receives the notification message returned by the base station through the AMF and learns that the network device can currently meet the QoS profile information for the data packet group or the QoS profile information for a certain optional data packet group, the SMF may further provide the QoS profile information for the data packet group or the QoS profile information for a certain optional data packet group, which can be currently met by the network device, to the UPF network element for execution by the UPF network element.

The data packet transmission method provided by the embodiment of the disclosure optimizes network transmission of data packets (such as multimedia data packets), and provides a QoS enhancement mechanism for the packet data packets for packet transmission of the multimedia data packets (i.e., dividing the data packets with the same or similar characteristics or with stronger interdependence into different data packet groups), and a scheme of how the base station processes when the base station cannot meet the existing QoS parameters of the packet data packets.

In an exemplary embodiment, the network device may include a source network device. Wherein the method may further comprise: when a terminal connected to the source network device is handed over to a target network device, the method further comprises: the source network device sends the quality of service profile information for the packet group and the first candidate quality of service profile information to the target network device.

For example, when a UE moves to cause a handover from an original base station to another base station, the base station before the handover is called a source base station, and the base station after the handover is called a target base station. When a handover occurs, qoS profile information for a packet group and optional QoS profile information for a packet group with priority order may be provided to a target base station. If the target base station cannot guarantee the QoS profile information for the data packet group, such as PSDB, PSER and the like, the target base station detects whether the QoS profile information for the data packet group can be met according to the priority order.

If the target base station can meet the QoS profile information of a certain optional data packet group of the QoS flow, the target base station can accept to establish the QoS flow and indicate the reference information (reference) of the QoS profile information of the optional data packet group to the source base station; and/or notify the AMF and forward further to the SMF.

After the handover procedure is completed, after the target base station sends a notification to the SMF containing optional QoS profile information for the packet group, if the target base station detects that the QoS profile information for the packet group that is currently supportable is different from the optional QoS profile information for the packet group indicated in the previous sent notification, the target base station sends a notification to the SMF, and indicates reference information of the optional QoS profile information for the packet group that can be currently satisfied. After the SMF receives the notification from the target base station, the PCF is notified of the optional QoS profile information currently supported by the PCF for the packet group.

If the target base station cannot meet any of the optional QoS profile information for the packet group, the target base station may refuse to establish the QoS flow.

The data packet transmission method provided by the embodiment of the disclosure can also realize QoS control for the data packet group when the network equipment is switched due to the movement of the UE, and optimize the network transmission mechanism.

Fig. 9 schematically illustrates a flow chart of a data packet transmission method according to still another embodiment of the present disclosure. The method provided by the embodiment of fig. 9 may be performed by a target network device, as shown in fig. 9, and the method provided by the embodiment of the disclosure may include:

in S910, quality of service profile information for a packet group is acquired.

In S920, if the qos profile information for the packet group cannot be satisfied, a fifth notification message is sent to indicate that the target network device cannot satisfy the qos profile information for the packet group.

In an exemplary embodiment, the method may further include: acquiring first candidate service quality configuration file information aiming at the data packet group; if the service quality configuration file information aiming at the data packet group cannot be met, detecting whether the first candidate service quality configuration file information can be met or not; if the first candidate service quality configuration file information can be met, receiving and establishing a service quality stream corresponding to the data packet group; a sixth notification message is sent to indicate that the target network device is able to satisfy the first candidate quality of service profile information.

In an exemplary embodiment, the method may further include: and if the first candidate service quality configuration file information cannot be met, refusing to establish the service quality stream corresponding to the data packet group.

Other content of the fig. 9 embodiment may be referred to the other embodiments described above.

Fig. 10 schematically illustrates a flow chart of a data packet transmission method according to still another embodiment of the present disclosure. The method provided by the embodiment of fig. 10 may be performed by a session management function network element, as shown in fig. 10, and the method provided by the embodiment of the disclosure may include:

in S1010, a first policy control charging rule is obtained (e.g., from the PCF).

In S1020, quality of service profile information for the data packet group and first candidate quality of service profile information for the data packet group are generated according to the first policy control charging rule.

In S1030, the quality of service profile information and the first candidate quality of service profile information for the set of data packets are sent (e.g., to a network device).

In an exemplary embodiment, the method may further include: receiving a second notification message (e.g., returned by the network device) indicating that the network device is capable of satisfying the first candidate quality of service profile information for a group of data packets; a seventh notification message is sent to notify (e.g., PCF) of the first candidate quality of service profile information for the group of data packets supported by the network device based on the second notification message (e.g., to the PCF).

In an exemplary embodiment, transmitting (e.g., to a network device) the quality of service profile information for the group of data packets and the first candidate quality of service profile information for the group of data packets may include: transmitting (e.g., to a network device) the quality of service profile information for the packet group and the first candidate quality of service profile information for the packet group at a protocol data unit session establishment; or, triggering a modification procedure of a protocol data unit session to send the quality of service profile information for the data packet group and the first candidate quality of service profile information for the data packet group, for example, may be sent to the network device.

In an exemplary embodiment, the method may further include: acquiring a second policy control charging rule (e.g., from the PCF); generating second candidate service quality configuration file information for the data packet group according to the second policy control charging rule; the second candidate quality of service profile information is transmitted (e.g., to a network device).

Other content of the embodiment of fig. 10 may be referred to the other embodiments described above.

Fig. 11 schematically illustrates an interactive schematic diagram of a data packet transmission method according to another embodiment of the present disclosure. As shown in fig. 11, a method provided by an embodiment of the present disclosure may include:

optionally, in S111a, the AF sends service requirement information for the packet group in the quality of service flow to the NEF (Network Exposure Function, network open function) network element.

In the embodiment of the disclosure, the AF network element may be a functional unit abstracted from the service server.

Optionally, the AF network element may further send at least one of identification information of AF (denoted by AF ID), target traffic flow template information, target DNN information and/or target S-nsai information of the target traffic flow, etc. to the NEF network element.

In an exemplary embodiment, the destination traffic flow template information may include one or more of a source IP address (source network address), a source port number, a destination IP address (destination network address), a destination port number, a FQDN (Fully Qualified Domain Name ), an APP ID (Application identity, application identification), etc. of the destination traffic flow.

In S112a, the NEF sends the received traffic demand information for the packet group in the quality of service flow to the PCF.

After receiving the service requirement information for the data packet group in the service quality stream sent by the AF network element, the NEF network element can authenticate and authenticate the service requirement information. The NEF network element may return a response message to the AF network element, which may include an indication of whether the traffic demand information for the group of data packets in the quality of service flow is agreed. If the authentication and the authentication are not passed, the indication information indicates that the service requirement information for the data packet group in the service quality stream is refused, and optionally, a refusal reason value can be included.

Optionally, in S111b, the AF sends traffic demand information for the group of packets in the quality of service flow to the PCF.

It may be understood that, in the above embodiment, the AF network element and the PCF network element exchange information through the NEF network element, but the disclosure is not limited thereto, and in other embodiments, the AF network element may also directly communicate with the PCF network element, i.e., the PCF network element directly obtains service requirement information for the data packet group in the quality of service flow from the AF network element; the NEF network element may also store the service requirement information for the packet group in the qos flow sent by the AF in a UDR (Unified Data Repository, unified data warehouse function) network element, and the PCF network element may receive the service requirement information for the packet group in the qos flow from the UDR network element.

I.e. the AF may be configured to set optional QoS profile information for the packet group when providing parameter information to the PCF network element, the AF may provide the PCF with parameter information related to optional QoS request information for the packet group of the target service by the NEF or not by the NEF.

In S113, the PCF generates a PCC rule (here, a first PCC rule).

In the embodiment of the disclosure, the PCF may generate the first PCC rule, which may consider the service requirement information received from the AF for the packet group in the quality of service flow, but may also comprehensively consider various other factors such as the operator policy, the network information, etc., that is, if the PCF does not receive the service requirement information from the AF for the packet group in the quality of service flow, the PCF may also generate the first PCC rule.

In S114, the PCF sends PCC rules to the SMF.

In S115, the SMF generates QoS profile information for a packet group in the quality of service flow and optional QoS profile information for the packet group according to the received PCC rule.

In S116, the SMF sends the QoS profile for the packet group in the quality of service flow and the optional QoS profile for the packet group to the base station.

According to the data packet transmission method provided by the embodiment of the disclosure, qoS control is performed on the data packet group of the target service flow, and the network transmission mechanism is optimized.

Fig. 12 schematically illustrates a flow chart of a data packet transmission method according to still another embodiment of the present disclosure. The method provided by the embodiment of fig. 12 may be performed by a policy control function network element, as shown in fig. 12, and the method provided by the embodiment of the disclosure may include:

in S1210, service requirement information for the packet group (e.g., sent by the application function network element) is received.

In S1220, a first policy control charging rule is generated according to the traffic demand information for the packet group.

In S1230, the first policy control charging rule is sent (e.g., to the SMF) for indicating generation of quality of service profile information for the data packet group and first candidate quality of service profile information for the data packet group.

Other content of the embodiment of fig. 12 may be referred to the other embodiments described above.

Further, the embodiment of the disclosure further provides a data packet transmission method, which may be executed by an application function network element, and the method may include: traffic demand information for the group of data packets is sent (e.g., to the PCF) to indicate the generation of the first policy control charging rule. The first policy control charging rule may be used to indicate that quality of service profile information for the data packet group and first candidate quality of service profile information for the data packet group are generated. Other content of embodiments of the present disclosure may be found in the other embodiments described above.

Fig. 13 schematically illustrates a block diagram of a network device according to an embodiment of the disclosure. As shown in fig. 13, a network device 1300 provided by an embodiment of the present disclosure may include a receiving unit 1310 and a transmitting unit 1320.

The receiving unit 1310 may be configured to obtain quality of service profile information for a group of data packets (e.g., from an SMF).

The sending unit 1320 may be configured to send a first notification message (e.g. to the SMF) to indicate that the network device is not able to satisfy the quality of service profile information for the packet group if the quality of service profile information for the packet group is not able to be satisfied.

In an exemplary embodiment, the receiving unit 1310 may also be configured to: first candidate quality of service profile information for the group of data packets is obtained (e.g., from the SMF). The network device 1300 may further comprise a processing unit operable to detect if said first candidate quality of service profile information can be met if said quality of service profile information for said group of data packets cannot be met. The transmitting unit 1320 may also be configured to: if the first candidate quality of service profile information can be satisfied, a second notification message is sent (e.g., to the SMF) to indicate that the network device can satisfy the first candidate quality of service profile information.

In an exemplary embodiment, the first candidate quality of service profile information includes a plurality of first candidate quality of service profile information. Wherein the receiving unit 1310 may further be configured to: a first priority corresponding to each of the first candidate quality of service profile information is obtained (e.g., from the SMF). Wherein the processing unit is further configured to: and detecting whether the first candidate service quality configuration file information can be met according to the first priority of the first candidate service quality configuration file information.

In an exemplary embodiment, the transmitting unit 1320 may also be configured to: and if the first target candidate qos profile information in the first candidate qos profile information can be satisfied, sending the second notification message (e.g., to the SMF). Wherein the second notification message may include first target reference information of the first target candidate quality of service profile information to indicate that the network device is capable of satisfying the first target candidate quality of service profile information.

In an exemplary embodiment, the transmitting unit 1320 may also be configured to: a third notification message is sent (e.g., to the SMF) when it is detected that the quality of service profile information or a second target candidate quality of service profile information of the first candidate quality of service profile information can be satisfied. Wherein the third notification message may include reference information for the quality of service profile information or second target reference information for the second target candidate quality of service profile information to indicate that the network device is capable of satisfying the quality of service profile information or the second target candidate quality of service profile information.

In an exemplary embodiment, the receiving unit 1310 may also be configured to: second candidate quality of service profile information for the group of data packets is obtained (e.g., from the SMF). The network device 1300 may further comprise a processing unit that may be configured to replace the first candidate quality of service profile information with the second candidate quality of service profile information.

In an exemplary embodiment, the transmitting unit 1320 may also be configured to: if the first candidate quality of service profile information cannot be satisfied, a fourth notification message is sent (e.g., to the SMF) to indicate that the network device cannot satisfy the first candidate quality of service profile information.

In an exemplary embodiment, the first candidate quality of service profile information may include a first candidate quality of service parameter for the group of data packets, wherein: the first candidate quality of service parameter may include at least one of a packet group delay budget, a packet group error rate for the packet group; if the qos flow corresponding to the packet group is a guaranteed bit rate qos flow, the first candidate qos parameter may further include a guaranteed bit rate for the packet group.

In an exemplary embodiment, the network device may include a source network device. The transmitting unit 1320 in the source network device may be further configured to, when a terminal connected to the source network device is handed over to a target network device: and sending the service quality configuration file information and the first candidate service quality configuration file information aiming at the data packet group to the target network equipment.

Other content in the embodiment of fig. 13 may be referred to the other embodiments described above.

Fig. 14 schematically illustrates a block diagram of a target network device according to an embodiment of the disclosure. As shown in fig. 14, a target network device 1400 provided by an embodiment of the present disclosure may include a receiving unit 1410 and a transmitting unit 1420.

The receiving unit 1410 may be configured to obtain quality of service profile information for a packet group.

The sending unit 1420 may be configured to send a fifth notification message to indicate that the target network device cannot meet the quality of service profile information for the packet group if the quality of service profile information for the packet group cannot be met.

In an exemplary embodiment, the receiving unit 1410 may also be configured to: and acquiring first candidate service quality configuration file information aiming at the data packet group. The target network device 1400 may also include a processing unit that may be configured to: if the service quality configuration file information aiming at the data packet group cannot be met, detecting whether the first candidate service quality configuration file information can be met or not; and if the first candidate service quality configuration file information can be met, receiving and establishing a service quality stream corresponding to the data packet group. The transmitting unit 1420 may also be configured to: a sixth notification message is sent to indicate that the target network device is able to satisfy the first candidate quality of service profile information.

In an exemplary embodiment, the target network device 1400 may further comprise a processing unit, which may be configured to: and if the first candidate service quality configuration file information cannot be met, refusing to establish the service quality stream corresponding to the data packet group.

Other content in the embodiment of fig. 14 may be referred to the other embodiments described above.

Fig. 15 schematically illustrates a block diagram of a session management function network element according to an embodiment of the present disclosure. As shown in fig. 15, a session management function network element 1500 provided by an embodiment of the present disclosure may include a receiving unit 1510, a processing unit 1520, and a transmitting unit 1530.

The receiving unit 1510 may be configured to obtain a first policy control charging rule (e.g., from a PCF).

Processing unit 1520 may be configured to generate the quality of service profile information for the data packet group and the first candidate quality of service profile information for the data packet group according to the first policy control charging rule.

The sending unit 1530 may be configured to send (e.g., to a network device) the quality of service profile information for the packet group and the first candidate quality of service profile information for the packet group.

In an exemplary embodiment, the receiving unit 1510 may also be configured to: a second notification message (e.g., returned by the network device) is received, the second notification message indicating that the network device is capable of satisfying the first candidate quality of service profile information. The transmitting unit 1530 may also be configured to: a seventh notification message is sent to notify (e.g., PCF) of the first candidate quality of service profile information for the group of data packets supported by the network device based on the second notification message (e.g., to the PCF).

In an exemplary embodiment, the transmitting unit 1530 may also be used for: transmitting (e.g., to a network device) the quality of service profile information and the first candidate quality of service profile information for the group of data packets at a protocol data unit session establishment; or, triggering a modification procedure of a protocol data unit session to send the quality of service profile information and the first candidate quality of service profile information for the packet group, for example, may be sent to the network device.

In an exemplary embodiment, the receiving unit 1510 may also be configured to: a second policy control charging rule is obtained (e.g., from the PCF). The processing unit 1520 may also be configured to: and generating second candidate service quality configuration file information aiming at the data packet group according to the second policy control charging rule. The transmitting unit 1530 may also be configured to: the second candidate quality of service profile information is transmitted (e.g., to a network device).

Other matters in the embodiment of fig. 15 may be referred to the other embodiments described above.

Fig. 16 schematically illustrates a block diagram of a policy control function network element according to an embodiment of the disclosure. As shown in fig. 16, the policy control functional network element provided by the embodiments of the present disclosure may include a receiving unit 1610, a processing unit 1620, and a transmitting unit 1630.

The receiving unit 1610 may be configured to receive service requirement information (for example, sent by an application function network element) for a packet group.

The processing unit 1620 may be configured to generate a first policy control charging rule according to the service requirement information for the packet group.

The sending unit 1630 may be configured to send the first policy control charging rule (e.g. to a session management function network element) for indicating to generate quality of service profile information for the data packet group and first candidate quality of service profile information for the data packet group.

Other matters in the embodiment of fig. 16 may be referred to the other embodiments described above.

Further, the embodiment of the present disclosure further provides an application function network element, which may include: a sending unit may be configured to send (e.g. to a policy control function network element) traffic demand information for the group of data packets to indicate that the first policy control charging rule is generated. The first policy control charging rule may be used to indicate that quality of service profile information for the data packet group and first candidate quality of service profile information for the data packet group are generated. Other content in embodiments of the present disclosure may be referred to the other embodiments described above.

Fig. 17 schematically shows a schematic structural diagram of a communication device 1700 according to an embodiment of the disclosure. The communication device 1700 shown in fig. 17 may be a terminal, such as a UE, or a network device, such as a base station, or a PCF network element and/or a NEF network element and/or an AF network element and/or an AMF network element and/or an SMF network element and/or a UPF network element, and the processor 1710 may call and execute a computer program from the memory to implement a method in an embodiment of the disclosure.

Optionally, as shown in fig. 17, the communication device 1700 may also include a memory 1720. Wherein the processor 1710 may invoke and run a computer program from the memory 1720 to implement the methods in embodiments of the present disclosure.

Wherein the memory 1720 may be a separate device from the processor 1710 or may be integrated in the processor 1710.

Optionally, as shown in fig. 17, the communication device 1700 may further include a transceiver 1730, and the processor 1710 may control the transceiver 1730 to communicate with other devices, and in particular, may transmit information or data to other devices, or receive information or data transmitted by other devices.

Among other things, transceiver 1730 may include a transmitter and a receiver. Transceiver 1730 may further include antennas, the number of which may be one or more.

In the alternative, processor 1710, memory 1720, and transceiver 1730 may communicate with each other via a communication bus 1740.

Optionally, the communication device 1700 may be specifically various network elements of the embodiments of the present disclosure, and the communication device 1700 may implement corresponding flows implemented by each network element in each method of the embodiments of the present disclosure, which are not described herein for brevity.

Optionally, the communication device 1700 may be specifically a network device of the embodiments of the present disclosure, and the communication device 1700 may implement a corresponding flow implemented by the network device in each method of the embodiments of the present disclosure, which is not described herein for brevity.

It should be appreciated that the processor of embodiments of the present disclosure may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form.

The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps and logic blocks of the disclosure in the embodiments of the disclosure may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present disclosure may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the disclosure may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous RAM (SynchlinkDRAM, SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory. It should be understood that the above memory is exemplary and not limiting.

The disclosed embodiments also provide a computer-readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a network device in an embodiment of the present disclosure, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method of the embodiment of the present disclosure, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to each network element in the embodiments of the present disclosure, and the computer program causes a computer to execute a corresponding flow implemented by each network element in each method in the embodiments of the present disclosure, which is not described herein for brevity.

The disclosed embodiments also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to a network device in an embodiment of the present disclosure, and the computer program instructions cause the computer to execute a corresponding flow implemented by the network device in each method of the embodiment of the present disclosure, which is not described herein for brevity.

Optionally, the computer program product may be applied to each network element in the embodiments of the present disclosure, and the computer program instructions cause a computer to execute a corresponding procedure implemented by each network element in each method in the embodiments of the present disclosure, which is not described herein for brevity.

The disclosed embodiments also provide a computer program.

Optionally, the computer program may be applied to a network device in the embodiments of the present disclosure, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiments of the present disclosure, which is not described herein for brevity.

Optionally, the computer program may be applied to each network element in the embodiments of the present disclosure, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by each network element in each method in the embodiments of the present disclosure, which is not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present disclosure may be embodied in essence or a part contributing to the prior art or a part of the technical solution, or in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present disclosure. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A method of data packet transmission, the method performed by a network device, the method comprising:

acquiring service quality configuration file information aiming at a data packet group;

if the quality of service profile information for the data packet group cannot be satisfied, a first notification message is sent to indicate that the network device cannot satisfy the quality of service profile information for the data packet group.

2. The method as recited in claim 1, further comprising:

acquiring first candidate service quality configuration file information aiming at the data packet group;

if the service quality configuration file information aiming at the data packet group cannot be met, detecting whether the first candidate service quality configuration file information can be met or not;

and if the first candidate service quality configuration file information can be met, sending a second notification message to indicate that the network equipment can meet the first candidate service quality configuration file information.

3. The method of claim 2, wherein the first candidate quality of service profile information comprises a plurality of first candidate quality of service profile information; wherein the method further comprises:

Acquiring first priorities corresponding to the first candidate service quality configuration file information;

wherein detecting whether the first candidate quality of service profile information can be satisfied comprises:

and detecting whether the first candidate service quality configuration file information can be met according to the first priority of the first candidate service quality configuration file information.

4. The method of claim 3, wherein if the first candidate quality of service profile information can be satisfied, sending a second notification message to indicate that the network device can satisfy the first candidate quality of service profile information comprises:

if the first target candidate service quality configuration file information in the first candidate service quality configuration file information can be met, sending the second notification message;

wherein the second notification message includes first target reference information of the first target candidate quality of service profile information to indicate that the network device is capable of satisfying the first target candidate quality of service profile information.

5. The method as recited in claim 4, further comprising:

Transmitting a third notification message when it is detected that the quality of service profile information or second target candidate quality of service profile information in the first candidate quality of service profile information can be satisfied;

wherein the third notification message includes reference information of the quality of service profile information or second target reference information of the second target candidate quality of service profile information to indicate that the network device is capable of satisfying the quality of service profile information or the second target candidate quality of service profile information.

6. The method as recited in claim 2, further comprising:

acquiring second candidate service quality configuration file information aiming at the data packet group;

and replacing the first candidate service quality configuration file information by the second candidate service quality configuration file information.

7. The method as recited in claim 2, further comprising:

and if the first candidate service quality configuration file information cannot be met, sending a fourth notification message to indicate that the network equipment cannot meet the first candidate service quality configuration file information.

8. The method of claim 2, wherein the first candidate quality of service profile information comprises a first candidate quality of service parameter for the group of data packets, wherein:

the first candidate quality of service parameter includes at least one of a packet group delay budget and a packet group error rate for the packet group;

and if the service quality stream corresponding to the data packet group is a guaranteed bit rate service quality stream, the first candidate service quality parameter further comprises a guaranteed bit rate for the data packet group.

9. The method of claim 2, wherein the network device comprises a source network device; wherein the method further comprises:

when a terminal connected to the source network device is handed over to a target network device, the method further comprises:

the source network device sends the quality of service profile information for the packet group and the first candidate quality of service profile information to the target network device.

10. A method of data packet transmission, the method being performed by a session management function network element, the method comprising:

Acquiring a first policy control charging rule;

generating service quality configuration file information for a data packet group and first candidate service quality configuration file information for the data packet group according to the first policy control charging rule;

the quality of service profile information for the set of data packets is sent and the first candidate quality of service profile information for the set of data packets is sent.

11. The method as recited in claim 10, further comprising:

receiving a second notification message indicating that the network device is capable of satisfying the first candidate quality of service profile information;

and sending a seventh notification message according to the second notification message to notify the network device of the first candidate service quality configuration file information supported by the network device for the data packet group.

12. The method of claim 10, wherein transmitting the quality of service profile information and the first candidate quality of service profile information for the group of data packets comprises:

transmitting the qos profile information and the first candidate qos profile information for the packet group when a protocol data unit session is established; or,

Triggering a modification procedure of a protocol data unit session to send the quality of service profile information and the first candidate quality of service profile information for the data packet group.

13. The method as recited in claim 10, further comprising:

acquiring a second policy control charging rule;

generating second candidate service quality configuration file information for the data packet group according to the second policy control charging rule;

and sending the second candidate service quality configuration file information.

14. A method of data packet transmission, the method being performed by a policy control function network element, the method comprising:

receiving service demand information for a data packet group;

generating a first policy control charging rule according to the service demand information for the data packet group;

and sending the first policy control charging rule to indicate to generate the service quality configuration file information for the data packet group and the first candidate service quality configuration file information for the data packet group.

15. A method of data packet transmission, the method being performed by an application function network element, the method comprising:

Transmitting service demand information for the data packet group to indicate generation of a first policy control charging rule;

the first policy control charging rule is used for indicating to generate service quality configuration file information for the data packet group and first candidate service quality configuration file information for the data packet group.

16. A communication device, comprising:

one or more processors;

a memory configured to store one or more programs that, when executed by the one or more processors, cause the communication device to implement the method of any of claims 1-9; or,

the method of any one of claims 10 to 13; or,

the method of claim 14; or,

the method of claim 15.

17. A computer readable storage medium storing a computer program, characterized in that the computer program, when run on a computer, causes the computer to perform the method of any one of claims 1 to 9; or,

the method of any one of claims 10 to 13; or,

The method of claim 14; or,

the method of claim 15.