WO2020051745A1

WO2020051745A1 - Data transmission method, device and communication device

Info

Publication number: WO2020051745A1
Application number: PCT/CN2018/104890
Authority: WO
Inventors: 唐海
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-09-10
Filing date: 2018-09-10
Publication date: 2020-03-19
Also published as: CN111869172B; CN111869172A

Abstract

The embodiment of the present application provides a data transmission method and device and a communication device, comprising: a first node receives first indicating information sent from a second node, the first indicating information being used for indicating a first QoS Flow corresponding to a first data flow identification to execute a first processing mechanism, wherein the first processing mechanism comprises: the first node determines second data package information on the basis of first data package information in the first QoS Flow corresponding to the first data flow identification; the first QoS Flow corresponds to a first QoS rule; data packages satisfying the second data package information are transmitted through the QoS Flow corresponding to the first QoS rule.

Description

Data transmission method and device, and communication equipment

Technical field

The embodiments of the present application relate to the field of mobile communication technologies, and in particular, to a data transmission method and device, and a communication device.

Background technique

The fifth-generation (5G, 5 ^th Generation) quality of service (QoS, Quality of Service) model based on QoS flows (QoS Flow), 5G QoS guarantee model supports stream bit rate (GBR QoS) QoS flow and non-guaranteed stream bit rate ( Non-GBR) QoS flow, 5G QoS model also supports Reflective QoS (Reflective QoS) mechanism.

The current Reflective QoS mechanism requires extra bits to indicate whether each packet is a Reflective packet (ie, a packet that implements the Reflective QoS mechanism). In addition, only the Reflective QoS mechanism in the downstream direction and the Reflective QoS mechanism in the upstream direction are defined. To be improved.

Summary of the Invention

The embodiments of the present application provide a data transmission method and device, and a communication device.

The data transmission method provided in the embodiment of the present application includes:

Receiving, by a first node, first indication information sent by a second node, where the first indication information is used to instruct a first QoS Flow corresponding to a first data flow identifier to perform a first processing mechanism;

The first processing mechanism includes: the first node determines second packet information based on first packet information in a first QoS Flow corresponding to the first data flow identifier, and the first QoS Flow corresponds to The first QoS rule transmits a data packet that satisfies the second data packet information through a QoS flow corresponding to the first QoS rule.

A first node receives a data packet sent by a third node and executes a first processing mechanism; the data packet includes first identification information, and the first identification information is used to instruct the first node to execute the first processing mechanism;

The first processing mechanism includes: after the first node receives the first data packet carrying the first identification information, determining the second data packet information based on the first data packet information of the first data packet The first data packet is transmitted through a first QoS flow, the first QoS flow corresponds to a first QoS rule, and a data packet that satisfies the second data packet information is performed through a QoS flow corresponding to the first QoS rule transmission.

The terminal carries first identification information in a data packet sent to the network element of the second core network, where the first identification information is used to instruct the network element of the second core network to perform a first processing mechanism;

The first processing mechanism includes: after the second core network element receives the first data packet carrying the first identification information, determines a second data packet based on the first data packet information of the first data packet. Data packet information, the first data packet is transmitted through a first QoS flow, the first QoS flow corresponds to a first QoS rule, and a data packet that satisfies the second data packet information passes the corresponding QoS Flow is used for transmission.

The data transmission device provided in the embodiment of the present application is applied to a first node, and the device includes:

A receiving unit, configured to receive first instruction information sent by a second node, where the first instruction information is used to instruct a first QoS Flow corresponding to a first data flow identifier to execute a first processing mechanism;

A receiving unit, configured to receive a data packet sent by a third node, where the data packet includes first identification information, and the first identification information is used to instruct the first node to execute the first processing mechanism;

A processing unit, configured to execute a first processing mechanism, wherein the first processing mechanism includes: after the first node receives a first data packet carrying the first identification information, based on the first data packet, The first data packet information determines the second data packet information, and the first data packet is transmitted through the first QoS Flow, and the first QoS Flow corresponds to the first QoS rule, and the data packet that satisfies the second data packet information passes The QoS Flow corresponding to the first QoS rule is transmitted.

The data transmission device provided in the embodiment of the present application is applied to a terminal, and the device includes:

A processing unit, configured to carry first identification information in a data packet sent to a second core network element, where the first identification information is used to instruct the second core network element to perform a first processing mechanism;

The communication device provided in the embodiment of the present application includes a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the above-mentioned data transmission method.

The chip provided in the embodiment of the present application is used to implement the foregoing data transmission method.

Specifically, the chip includes: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the foregoing data transmission method.

The computer-readable storage medium provided in the embodiments of the present application is used to store a computer program, and the computer program causes a computer to execute the foregoing data transmission method.

The computer program product provided in the embodiment of the present application includes computer program instructions, and the computer program instructions cause a computer to execute the foregoing data transmission method.

The computer program provided in the embodiment of the present application, when run on a computer, causes the computer to execute the foregoing data transmission method.

Through the above technical solution, not only the Reflective QoS mechanism in the downlink direction but also the Reflective QoS mechanism in the uplink direction can be realized. The use of the Reflective QoS mechanism can avoid the overhead of a large number of filters installed for detecting applications.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described here are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

FIG. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application; FIG.

FIG. 2 is a first schematic flowchart of a data transmission method according to an embodiment of the present application; FIG.

3 is a second schematic flowchart of a data transmission method according to an embodiment of the present application;

FIG. 4 is a third flowchart of a data transmission method according to an embodiment of the present application;

FIG. 5 is a first schematic diagram of transmission of first indication information according to an embodiment of the present application; FIG.

FIG. 6 is a second schematic diagram of transmitting first indication information according to an embodiment of the present application; FIG.

7 is a schematic structural composition diagram of a data transmission device according to an embodiment of the present application;

8 is a schematic structural diagram of a communication device according to an embodiment of the present application;

9 is a schematic structural diagram of a chip according to an embodiment of the present application;

FIG. 10 is a schematic block diagram of a communication system according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, a Global System for Mobile (GSM) system, a Code Division Multiple Access (CDMA) system, and a Wideband Code Division Multiple Access (Wideband Code Division Multiple Access) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application 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 device 120 (or a communication terminal or a terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located within the coverage area. Optionally, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system. (Evolutional NodeB, eNB or eNodeB), or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device may be a mobile switching center, relay station, access point, vehicle equipment, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in public land mobile networks (PLMN) that will evolve in the future.

The communication system 100 further includes at least one terminal device 120 located within a coverage area of the network device 110. As the "terminal equipment" used herein includes, but is not limited to, connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection ; And / or another data connection / network; and / or via a wireless interface, such as for cellular networks, Wireless Local Area Networks (WLANs), digital television networks such as DVB-H networks, satellite networks, AM-FM A broadcast transmitter; and / or another terminal device configured to receive / transmit a communication signal; and / or an Internet of Things (IoT) device. A terminal device configured to communicate through a wireless interface may be referred to as a “wireless communication terminal”, a “wireless terminal”, or a “mobile terminal”. Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communications systems (PCS) terminals that can combine cellular radiotelephones with data processing, facsimile, and data communications capabilities; can include radiotelephones, pagers, Internet PDA with network access, web browser, notepad, calendar, and / or Global Positioning System (GPS) receiver; and conventional laptop and / or palm-type receivers or others including radiotelephone transceivers Electronic device. A terminal device can refer to an access terminal, user equipment (User Equipment), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or User device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Processing (PDA), and wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks, or terminal devices in future evolved PLMNs, etc.

Optionally, terminal devices 120 may perform terminal direct device (D2D) communication.

Optionally, the 5G system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.

FIG. 1 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like in this embodiment of the present application is not limited thereto.

It should be understood that the device having a communication function in the network / system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be specific devices described above, and are not described herein again. The communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobile management entity, and the like, which is not limited in the embodiments of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" in this document is only a kind of association relationship describing related objects, which means that there can be three kinds of relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and exists alone B these three cases. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, related technologies of the embodiments of the present application are described below.

There are two ways to identify applications: 1) Configure multiple Layer 3 rules to parse the data packet to determine what kind of application the data packet belongs to; 2) Deploy complex deep packet inspection (DPI, Deep Packet) on the network device Inspection) equipment, which uses DPI equipment to test the frequency, size, and time of a data packet to determine which application the data packet belongs to.

For the above method 1), the network side often needs to configure a large number of Layer 3 rules for the same data packet, and an application requires dozens or even hundreds of matching rules. For the above method 2), the deployment of DPI equipment is very expensive and judgmental. Neither accuracy nor reliability can be guaranteed, which virtually increases the cost and complexity of network deployment.

In 5G, through the Filter detection application, Filter is also known as Packet Filter, which is used to identify data packets. There are three types of Filters: uplink filter, downlink filter, and bidirectional filter. Combined with the Reflective QoS mechanism in the downlink direction of the QoS model, for the downstream Filter (IP type or Ethernet type) of the downstream Filter, its source address and / or source port number are exchanged with the destination address and / or destination port number. An uplink filter is generated, and the uplink data packet is identified by the uplink filter.

In 5G, when there is no SMF to provide QoS rules (QoS rules) through signaling, the UE can map uplink user plane data to QoS flows through the reflective QoS mechanism, which is only applicable to IP-type and Ethenet-type PDU sessions. .

For a UE that supports the Reflective QoS mechanism, if the 5GC uses the Reflective QoS mechanism for downlink data, the UE must derive an uplink filter from the received downlink data packets, and then the UE will use the derived uplink filters to identify the uplink data packets. Further, if the UE supports the Reflective QoS mechanism, the UE should tell the network when each PDU session is established.

The following describes how the UE derives an uplink filter based on the received downlink data packet in combination with an IP-type PDU session and an Ethernet-type PDU session.

1) For IP-type PDU sessions, the process for the UE to derive the uplink Filter based on the received downlink data packets is as follows:

1.1. If the upper layer protocol is TCP or UDP, then the upstream filter consists of the source IP address, destination IP address, source port number, destination port number, and upper layer protocol type; for example, the downstream data packet {src_ip = 10.10.10.1dst_ip = 170.0.0.10udpsrc_port = 5000dst_port = 6000}, then the derived uplink filter is {src_ip = 170.0.0.10dst_ip = 10.10.10.1udpsrc_port = 6000dst_port = 5000}. This packet filter is a 5-tuple.

1.2. If the upper layer protocol is ESP, the upstream filter consists of the source IP address, destination IP address, security parameter index, and upper layer protocol type.

2) For an Ethernet type PDU session, the uplink filter derived by the UE based on the downlink data packet consists of the source MAC address, the destination MAC address, and the EtherType; if 802.1Q exists, the uplink filter also includes the VID and PCP.

Further, the UE derives a QoS rule, which includes the following parameters: uplink Filter, QFI, and priority. The QFI of the QoS rule derived by the UE is set to the QFI value of the corresponding downlink data packet.

The technical solution of the embodiment of the present application can not only implement the reflective QoS mechanism in the downlink, but also implement the reflective QoS mechanism in the uplink. In addition, the indication of whether to perform the reflective mapping action is determined at the beginning of the establishment of the QoS flow and passes through the network. The side tells the UE and / or UPF to reduce signaling overhead.

FIG. 2 is a first flowchart of a data transmission method according to an embodiment of the present application. As shown in FIG. 2, the data transmission method includes the following steps:

Step 201: The first node receives first indication information sent by the second node, where the first indication information is used to instruct the first QoS Flow corresponding to the first data flow identifier to perform a first processing mechanism; wherein the first processing The mechanism includes: the first node determines the second data packet information based on the first data packet information in the first QoS Flow corresponding to the first data flow identifier, and the first QoS Flow corresponds to the first QoS rule and will satisfy The data packet of the second data packet information is transmitted through a QoS Flow corresponding to the first QoS rule.

In the embodiment of the present application, the first node may be a terminal (such as a UE) or a user plane network element (such as a UPF), and the second node is a control plane network element (such as an SMF). In an embodiment, the UE receives the first indication information sent by the SMF. In another embodiment, the UPF receives the first indication information sent by the SMF.

In the embodiment of the present application, the QoS Flow corresponding to the first QoS rule may be the first QoS Flow, or may be another QoS Flow different from the first QoS Flow. In an implementation manner, transmitting a data packet that satisfies the second data packet information through the QoS Flow corresponding to the first QoS rule may be: passing a data packet that satisfies the second data packet information through the The first QoS Flow is transmitted. That is, uplink data packets and downlink data packets are transmitted through the same QoS Flow.

In the embodiment of the present application, the first indication information is sent by the second node to the first node during a session establishment process and / or a session modification process, and the first indication information is used to indicate the first data. The first QoS Flow corresponding to the flow identifier executes a first processing mechanism. It should be noted that the second node may indicate to the first node that the first QoS corresponding to the first data flow identifier executes the first processing mechanism, and may also indicate to the second node that the multiple corresponding to multiple first data flow identifiers The first QoS Flow performs a first processing mechanism.

For example, the SMF indicates to the UE and / or the UPF that the QoS corresponding to the data flow identifier 1 performs the first processing mechanism. For another example: the SMF indicates to the UE and / or the UPF the QoS Flow1 corresponding to the data flow identifier 1, and the QoS Flow2 corresponding to the data flow identifier 2 executes the first processing mechanism.

In the embodiment of the present application, the data flow identifier is used to identify the QoS flow. In one implementation, the data flow identification may be QFI (QoS Flow ID).

In the embodiments of the present application, the first processing mechanism may also be referred to as a reflective QoS mechanism.

In specific implementation, the first indication information includes one or more first data flow identifiers. After the first node receives the first indication information, based on the first data packet in the first QoS Flow corresponding to the first data flow identifier. The information determines the second data packet information. The first QoS Flow corresponds to the first QoS rule, and a data packet that satisfies the second data packet information is transmitted through the QoS Flow corresponding to the first QoS rule.

1) For the first downlink processing mechanism, when the first node is a terminal (such as a UE) and the second node is a first core network element (such as an SMF):

After receiving the first indication information, the terminal determines the second data packet information of the uplink data packet based on the first data packet information of the downlink data packet in the first QoS Flow corresponding to the first data flow identifier, Transmitting the uplink data packet that satisfies the second data packet information through the QoS Flow corresponding to the first QoS rule.

In the above solution, the source address in the first data packet information is the destination address in the second data packet information, and the destination address in the first data packet information is the source in the second data packet information Address; and / or, the source port number in the first data packet information is a destination port number in the second data packet information, and the destination port number in the first data packet information is the second data Source port number in the packet information.

Here, the first data packet information can be understood as downlink data packet information, and the second data packet information can be understood as uplink filter. For example, the UE receives the first indication information sent by the SMF, instructing the QoS corresponding to the data flow identifier 1 to perform the first processing mechanism, and the UE receives the downlink data packet sent by the UFP. The downlink data packet in the QoS Flow1 needs to be executed. The first processing mechanism is the Reflective mapping action. The following describes how the UE derives an uplink filter based on the received downlink data packet in combination with an IP-type PDU session and an Ethernet-type PDU session.

For IP-type PDU sessions, the process for the UE to derive the uplink Filter based on the received downlink data packets is as follows:

1. If the upper layer protocol is TCP or UDP, then the upstream filter consists of the source IP address, destination IP address, source port number, destination port number, and upper layer protocol type; for example, the downstream data packet {src_ip = 10.10.10.1dst_ip = 170.0.0.10udpsrc_port = 5000dst_port = 6000}, then the derived uplink filter is {src_ip = 170.0.0.10dst_ip = 10.10.10.1udpsrc_port = 6000dst_port = 5000}. This packet filter is a 5-tuple.

2. If the upper layer protocol is ESP, the upstream filter consists of the source IP address, destination IP address, security parameter index, and upper layer protocol type.

For Ethernet type PDU sessions, the uplink filter derived by the UE based on the downlink data packet consists of the source MAC address, destination MAC address, and EtherType. If 802.1Q exists, the uplink filter also includes VID and PCP.

2) For the uplink first processing mechanism, in a case where the first node is a second core network element (UPF) and the second node is a first core network element (such as SMF):

After the network element of the second core network receives the first instruction information, based on the first data packet information of the uplink data packet in the first QoSFlow corresponding to the first data flow identifier, determine a second data packet of the downlink data packet. The data packet information is to transmit a downlink data packet satisfying the second data packet information through a QoS Flow corresponding to the first QoS rule.

Here, the first data packet information can be understood as uplink data packet information, and the second data packet information can be understood as downlink filter. For example, the UPF receives the first indication information sent by the SMF, instructing the QoS corresponding to the data flow identifier 1 to perform the first processing mechanism, and the UPF receives the uplink data packet sent by the UE. The uplink data packet in the QoS Flow1 needs to be executed. The first processing mechanism is the Reflective mapping action. The following describes how the UPF derives a downstream filter based on the received uplink data packet in combination with an IP-type PDU session and an Ethernet-type PDU session.

For IP-type PDU sessions, the process by which the UPF derives the downstream Filter based on the received uplink data packets is as follows:

1. If the upper layer protocol is TCP or UDP, then the downstream Filter is composed of source IP address, destination IP address, source port number, destination port number, and upper layer protocol type; for example, the uplink data packet {src_ip = 10.10.10.1dst_ip = 170.0.0.10udpsrc_port = 5000dst_port = 6000}, then the derived downstream Filter is {src_ip = 170.0.0.10dst_ip = 10.10.10.1udpsrc_port = 6000dst_port = 5000}. This packet filter is a 5-tuple.

2. If the upper layer protocol is ESP, the downstream filter consists of the source IP address, destination IP address, security parameter index, and upper layer protocol type.

For Ethernet type PDU sessions, the downstream Filter derived by the UPF based on the upstream data packet consists of the source MAC address, destination MAC address, and EtherType; if 802.1Q exists, the downstream Filter also includes VID and PCP.

In an embodiment, the first node sends second instruction information to the second node, and the second instruction information is used to indicate whether the first node supports the capability of the first processing mechanism.

In one embodiment, after receiving the first indication information, the first node starts a first timer; and executes the first processing mechanism before the first timer times out.

In the embodiment of the present application, the first indication information is further used to indicate a correspondence between at least one application identifier and the first data flow identifier; and / or, the first indication information is further used to indicate an application identifier and A correspondence relationship of at least one of the first data flow identifiers. Specifically, 1) in a case where the first indication information is further used to indicate a correspondence between at least one application identifier and the first data flow identifier: a data packet corresponding to the at least one application identifier passes the first data The first QoS Flow corresponding to the flow identifier is transmitted. 2) In a case where the first indication information is further used to indicate a correspondence between an application identifier and at least one first data stream identifier: a data packet corresponding to the one application identifier passes at least one of the first data stream Identify at least one first QoS Flow corresponding to the transmission.

In the above solution, each application service at the application layer corresponds to an application identifier, and the data packet of the application service also corresponds to an application identifier.

FIG. 3 is a second flowchart of a data transmission method according to an embodiment of the present application. As shown in FIG. 3, the data transmission method includes the following steps:

Step 301: the first node receives a data packet sent by a third node and executes a first processing mechanism; the data packet includes first identification information, and the first identification information is used to instruct the first node to execute the first A processing mechanism; wherein the first processing mechanism includes: after receiving the first data packet carrying the first identification information, the first node determines a second data packet based on the first data packet information of the first data packet Data packet information, the first data packet is transmitted through a first QoS flow, the first QoS flow corresponds to a first QoS rule, and a data packet that satisfies the second data packet information passes the corresponding QoS Flow is used for transmission.

In the embodiment of the present application, the first node may be a terminal (such as a UE) or a user plane network element (such as a UPF). The second node referred to below is a control plane network element (such as an SMF). The third node may be a user plane network element (such as a UPF) or a terminal (such as a UE). When the first node is a UE, the third node is a UPF, and when the first node is a UPF, the third node is a UE.

In an embodiment, the second node sends first instruction information to the first node and / or the third node, wherein the first instruction information is used to indicate:

Whether to implement the first processing mechanism; and / or,

A correspondence between at least one application identifier and the first QoS rule; and / or,

A correspondence between at least one application identifier and the first processing mechanism.

For example, the UE receives the first indication information sent by the SMF. And / or, the UPF receives the first indication information sent by the SMF.

In the embodiment of the present application, the first indication information is sent by the second node to the first node during a session establishment process and / or a session modification process, and the first indication information is used to indicate whether to perform A processing mechanism.

1) For the first uplink processing mechanism, the first node is a second core network element (such as UPF), the second node is a first core network element (such as SMF), and the third node is Terminal (such as UE):

After receiving the first indication information, the terminal carries the first identification information in an uplink data packet sent to the second core network element, and the second core network element receives the first identification information. After the uplink data packet of the first identification information, the second data packet information of the downlink data packet is determined based on the first data packet information of the uplink data packet, and the downlink data packet satisfying the second data packet information passes the first data packet information. A QoS Flow corresponding to a QoS rule is transmitted, and the first QoS rule is a QoS rule corresponding to a first QoS Flow where the uplink data packet is located.

Here, the first data packet information can be understood as uplink data packet information, and the second data packet information can be understood as downlink filter. For example, the UE receives the first indication information sent by the SMF and instructs to execute the first processing mechanism. The UE carries the first identification information in the uplink data packet sent to the UFP, and the UPF receives the uplink data packet carrying the first identification information. Then, a downlink filter is derived based on the uplink data packet. Here, the process of the downstream Filter is also to exchange the source address and destination address of the uplink data packet, and / or, the source port number and destination port number. The source address and the destination address may be IP addresses or MAC addresses according to the type of the data packet.

2) For the first downlink processing mechanism, when the first node is a terminal, the second node is a first core network element, and the third node is a second core network element:

After receiving the first indication information, the second core network element carries the first identification information in a downlink data packet sent to the terminal, and the terminal receives the first identification information carrying the first identification information. After the downlink data packet, the second data packet information of the uplink data packet is determined based on the first data packet information of the downlink data packet, and the uplink data packet that satisfies the second data packet information passes the corresponding one of the first QoS rules. QoS Flow is used for transmission, and the first QoS rule is a QoS rule corresponding to the first QoS Flow where the downlink data packet is located.

Here, the first data packet information can be understood as downlink data packet information, and the second data packet information can be understood as uplink filter. For example, the UPF receives the first instruction information sent by the SMF to instruct the execution of the first processing mechanism. The UPF carries the first identification information in the downlink data packet sent to the UE, and the UE receives the downlink data packet carrying the first identification information. Then, an uplink filter is derived based on the downlink data packet. Here, the process of the uplink filter is also to exchange the source address and destination address of the uplink data packet, and / or, the source port number and destination port number. The source address and the destination address may be IP addresses or MAC addresses according to the type of the data packet.

In an embodiment, after receiving the first indication information, the third node starts a first timer; and executes the first processing mechanism before the first timer times out.

In the embodiment of the present application, the first indication information is used to indicate whether a first processing mechanism is performed, or to indicate a correspondence between at least one application identifier and the first QoS rule; and / or, the first indication The information is also used to indicate a correspondence between at least one application identifier and the first processing mechanism. Specifically, 1) in a case where the first indication information is further used to indicate a correspondence between at least one application identifier and the first QoS rule: a data packet corresponding to the at least one application identifier passes the first QoS Regular QoS Flow. 2) In a case where the first indication information is further used to indicate a correspondence between at least one application identifier and the first processing mechanism: a data packet corresponding to the at least one application identifier carries the first identifier information.

In an embodiment, the first node sends second instruction information to the second node, and the second instruction information is used to indicate whether the first node supports a capability of a first processing mechanism and / or an application identifier. The capability corresponding to the first processing mechanism and / or the capability of the application identification corresponding to the QoS rule.

In the embodiment of the present application, the first processing mechanism on the first node side may be in an enabled state or a closed state. When the first processing mechanism is in an enabled state, the first node (UE or UPF) needs to detect whether a data packet is carried. The first indication information, so that when it is detected that the first indication information is carried, the first processing mechanism is executed. When the first processing mechanism is turned off, the first node does not need to detect whether the data packet carries the first instruction information, which can save the complexity and power consumption of the terminal.

In the embodiment of the present application, the network side may indicate to the first node and / or the third node whether the first processing mechanism is enabled and / or the first processing mechanism is disabled. Specifically, the first node and / or the third node receive third instruction information sent by the second node, and the third instruction information is used to instruct the first node and / or the third node to activate the first node. A processing mechanism or turning off the first processing mechanism.

In the embodiments of the present application, the first processing mechanism of the first node may also be closed in an implicit manner. Specifically, the first node does not receive relevant parameters of the first processing mechanism and / or the first node. When a node does not store relevant parameters of the first processing mechanism, the first node closes the first processing mechanism. Here, the related parameters of the first processing mechanism may be, for example, parameters such as a Reflective QoS Timer.

In the above solution, the third indication information is sent by the second node to the first node and / or the third node during a session establishment and / or a session modification process. Further, the third instruction information further instructs the first node and / or the third node to enable the first processing mechanism or close the first processing mechanism for a first session. For example, the first node has three sessions, namely session 1, session 2, and session 3. The third instruction indicates that the first processing mechanism is turned off for session 1. The first node does not respond to the data packet of session 1. To detect whether it carries the first instruction information.

In the above solution, the granularity of opening and / or closing the first processing mechanism is a session.

FIG. 4 is a third flowchart of a data transmission method according to an embodiment of the present application. As shown in FIG. 4, the data transmission method includes the following steps:

Step 401: The terminal carries first identification information in a data packet sent to a second core network element, where the first identification information is used to instruct the second core network element to perform a first processing mechanism; The first processing mechanism includes: after the second core network element receives the first data packet carrying the first identification information, determines the second data packet information based on the first data packet information of the first data packet, The first data packet is transmitted through a first QoS Flow, the first QoS Flow corresponds to a first QoS rule, and a data packet that satisfies the second data packet information is transmitted through the QoS Flow corresponding to the first QoS rule. .

In an embodiment, the terminal receives first instruction information sent by a network element of a first core network, where the first instruction information is used to indicate whether to execute a first processing mechanism; and if the first instruction information indicates that the In a first processing mechanism, the terminal carries the first identification information in a data packet sent to the network element of the second core network.

In the embodiment of the present application, the first indication information is sent by the first core network element (such as SMF) to the terminal during a session establishment process and / or a session modification process, and the first indication information is used For indicating whether to execute the first processing mechanism.

In the embodiments of the present application, the first processing mechanism may also be referred to as a reflective QoS mechanism. After receiving the first indication information, the terminal carries the first identification information in an uplink data packet sent to the second core network element, and the second core network element receives the first identification information. After the uplink data packet of the first identification information, the second data packet information of the downlink data packet is determined based on the first data packet information of the uplink data packet, and the downlink data packet satisfying the second data packet information passes the first data packet information. A QoS Flow corresponding to a QoS rule is transmitted, and the first QoS rule is a QoS rule corresponding to a first QoS Flow where the uplink data packet is located.

In one embodiment, the second core network element starts the first timer after receiving the first indication information; and executes the first processing mechanism before the first timer times out.

In the embodiment of the present application, the first indication information is further used to indicate a correspondence between at least one application identifier and the first QoS rule; and / or, the first indication information is further used to indicate at least one application identifier and A corresponding relationship of the first processing mechanism. Specifically, 1) in a case where the first indication information is further used to indicate a correspondence between at least one application identifier and the first QoS rule: a data packet corresponding to the at least one application identifier passes the first QoS Regular QoS Flow. 2) In a case where the first indication information is further used to indicate a correspondence between at least one application identifier and the first processing mechanism: a data packet corresponding to the at least one application identifier carries the first identifier information.

In an embodiment, the terminal sends second instruction information to the first core network element, and the second instruction information is used to indicate whether the terminal supports a capability of the first processing mechanism and / or an application identifier and the first The capability corresponding to the processing mechanism and / or the capability of the application identification corresponding to the QoS rule.

FIG. 5 is a first schematic diagram of the transmission of the first instruction information provided in the embodiment of the present application. As shown in FIG. 5, it includes the following process:

Step 501: The UE sends a session establishment / modification request message to the SMF.

Here, the UE's ability to report the UE through the establishment / modification request message includes at least one of the following:

Whether to support the ability of the first processing mechanism;

Whether to support the capability of application identification corresponding to the first processing mechanism;

Whether to support the capability of application identification corresponding to QoS rules.

Step 502: The SMF obtains a QoS rule from the PCF.

Here, the QoS rule includes first indication information. Further, the QoS rule includes first indication information for uplink Reflective and / or first indication information for downlink Reflective. The first indication information is used to indicate at least one of the following:

Whether to implement the first processing mechanism;

A correspondence between at least one application identifier and the first data stream identifier;

A correspondence between an application identifier and at least one of the first data stream identifiers;

A correspondence between at least one application identifier and the first QoS rule;

Step 503: The SMF installs a QoS rule, and the UFP obtains the first indication information for the uplink Reflective.

Step 504: The SMF sends an SMF to the RAN to send a session establishment / modification request message response message.

Here, the SMF carries the first indication information for the downlink Reflective through the session establishment / modification request message response message.

Step 505: The RAN establishes air interface resources with the UE and performs NAS message transmission.

FIG. 6 is a second schematic diagram of the transmission of the first instruction information provided in the embodiment of the present application. As shown in FIG. 6, it includes the following process:

Step 601: The PCF sends the first instruction information to the AMF.

Step 602: The AMF transparently transmits the first indication information to the UE.

Here, the AMF transparently transmits the first indication information to the UE through the NAS message, and the RAN forwards the NAS message to the UE without parsing.

In the embodiment of the present application, all or part of the first indication information may be added to a UE Routing Selection Policy (URSP, UE Route Selection Policy) rule, as shown in the fourth row in Table 1 below, and in Table 2 As shown in the last line:

Table 1

Table 2

FIG. 7 is a schematic structural composition diagram of a data transmission device according to an embodiment of the present application. As shown in FIG. 7, the data transmission device includes a receiving unit 701, a processing unit 702, and a sending unit 703.

In an embodiment, the receiving unit 701 is configured to receive first indication information sent by a second node, where the first indication information is used to instruct a first QoS Flow corresponding to a first data flow identifier to execute a first processing mechanism; The first processing mechanism includes: the first node determines second packet information based on the first packet information in the first QoS Flow corresponding to the first data flow identifier, and the first QoS Flow corresponds to the first A QoS rule transmits a data packet satisfying the second data packet information through a QoS flow corresponding to the first QoS rule.

The first indication information is further used to indicate a correspondence between at least one application identifier and the first data stream identifier; and / or, the first indication information is further used to indicate one application identifier and at least one of the Correspondence between the first data flow identifiers.

Wherein, the first indication information is further used to indicate a correspondence between at least one application identifier and the first data stream identifier: a data packet corresponding to the at least one application identifier corresponds to the first data stream identifier The first QoS Flow is transmitted.

Wherein, the first indication information is further used to indicate a correspondence between an application identifier and at least one of the first data stream identifiers: a data packet corresponding to the one application identifier passes through at least one of the first data stream identifiers Identify at least one first QoS Flow corresponding to the transmission.

In the first processing mechanism, the source address in the first data packet information is a destination address in the second data packet information, and the destination address in the first data packet information is the first The source address in the second data packet information; and / or, the source port number in the first data packet information is a destination port number in the second data packet information, and the destination port in the first data packet information The number is the source port number in the second data packet information.

Wherein the first node is a terminal and the second node is a first core network element: the device further includes: a processing unit 702; after the receiving unit 701 receives the first instruction information The processing unit 702 determines the second data packet information of the uplink data packet based on the first data packet information of the downlink data packet in the first QoS Flow corresponding to the first data flow identifier, which will satisfy the second data The uplink data packet of the packet information is transmitted through the QoS Flow corresponding to the first QoS rule.

Wherein, when the first node is a second core network element and the second node is a first core network element: the device further includes: a processing unit 702; and the receiving unit 701 receives the After the first indication information, the processing unit 702 determines the second data packet information of the downlink data packet based on the first data packet information of the uplink data packet in the first QoS Flow corresponding to the first data flow identifier, which will satisfy The downlink data packet of the second data packet information is transmitted through a QoS Flow corresponding to the first QoS rule.

The first indication information is sent by the second node to the first node during a session establishment process and / or a session modification process.

The device further includes: a sending unit 703, configured to send second instruction information to the second node, where the second instruction information is used to indicate whether the first node supports the capability of the first processing mechanism. .

The device further includes: a processing unit 702; the receiving unit 701 starts a first timer after receiving the first instruction information; and the processing unit 702 executes the first timer before the first timer expires. First processing mechanism.

In another embodiment, the receiving unit 701 is configured to receive a data packet sent by a third node, where the data packet includes first identification information, and the first identification information is used to instruct the first node to execute the first A processing mechanism;

The processing unit 702 is configured to execute a first processing mechanism, wherein the first processing mechanism includes: after the first node receives a first data packet carrying the first identification information, based on the first data packet The first data packet information determines the second data packet information, the first data packet is transmitted through the first QoS Flow, and the first QoS Flow corresponds to the first QoS rule, and will satisfy the data packet of the second data packet information. Transmission is performed through a QoS Flow corresponding to the first QoS rule.

The second node sends first instruction information to the first node and / or the third node, where the first instruction information is used to indicate:

Whether to implement the first processing mechanism; and / or,

Wherein, the first indication information is used to indicate a correspondence between at least one application identifier and the first QoS rule: a data packet corresponding to the at least one application identifier passes a QoS flow that satisfies the first QoS rule. For transmission.

Wherein, the first indication information is used to indicate a correspondence between at least one application identifier and the first processing mechanism: a data packet corresponding to the at least one application identifier carries the first identifier information.

Wherein, when the first node is a second core network element and the third node is a terminal, after the second core network element receives the uplink data packet carrying the first identification information, it is based on The first data packet information of the uplink data packet determines the second data packet information of the downlink data packet, and the downlink data packet satisfying the second data packet information is transmitted through the QoS Flow corresponding to the first QoS rule. The first QoS rule is a QoS rule corresponding to a first QoS Flow where the uplink data packet is located.

Wherein, when the first node is a terminal and the third node is a second core network element, after receiving the downlink data packet carrying the first identification information, the terminal is based on the downlink data packet. The first data packet information determines the second data packet information of the uplink data packet, and the uplink data packets that satisfy the second data packet information are transmitted through the QoSFlow corresponding to the first QoS rule. The first QoS rule is A QoS rule corresponding to the first QoS Flow where the downlink data packet is located.

The device further includes: a sending unit 703, configured to send second instruction information to the second node, where the second instruction information is used to indicate whether the first node supports a capability of a first processing mechanism and / Or the capability of the application identification corresponding to the first processing mechanism and / or the capability of the application identification corresponding to the QoS rule.

Wherein, after receiving the first indication information, the third node starts a first timer; and executes the first processing mechanism before the first timer times out.

The receiving unit 701 is further configured to receive third instruction information sent by a second node, where the third instruction information is used to instruct the first node and / or a third node to activate the first processing mechanism or Turn off the first processing mechanism.

Wherein, when the first node does not receive the relevant parameters of the first processing mechanism and / or the first node does not store the relevant parameters of the first processing mechanism, the first node turns off the first Processing mechanism.

The device further includes:

The sending unit 703 is configured to send second instruction information to the second node, where the second instruction is used to indicate that the first node supports a first processing mechanism capability.

The third indication information is sent by the second node to the first node and / or the third node during a session establishment and / or a session modification process.

The third indication information further instructs the first node and / or the third node to enable the first processing mechanism or close the first processing mechanism for a first session.

The granularity of opening and / or closing the first processing mechanism is a session.

In another embodiment, the processing unit 702 is configured to carry first identification information in a data packet sent to a second core network element, where the first identification information is used to instruct the second core network element to execute First processing mechanism

The device further includes: a receiving unit 701, configured to receive first instruction information sent by a first core network element, where the first instruction information is used to indicate whether to perform a first processing mechanism; if the first instruction If the information indicates that the first processing mechanism is performed, the processing unit 702 carries the first identification information in a data packet sent to the second core network element.

The first indication information is further used to indicate a correspondence between at least one application identifier and the first QoS rule; and / or, the first indication information is further used to indicate at least one application identifier and the first Correspondence between processing mechanisms.

Wherein, the first indication information is further used to indicate a correspondence between at least one application identifier and the first QoS rule: a data packet corresponding to the at least one application identifier passes a QoS meeting the first QoS rule. Flow for transmission.

Wherein, the first indication information is further used to indicate a correspondence relationship between at least one application identifier and the first processing mechanism: a data packet corresponding to the at least one application identifier carries the first identifier information.

The first indication information is sent by the first core network element to the terminal during a session establishment process and / or a session modification process.

The device further includes: a sending unit 703, configured to send second instruction information to a first core network element, where the second instruction information is used to indicate whether the terminal supports a capability of the first processing mechanism and / or The capability of the application identification corresponding to the first processing mechanism and / or the capability of the application identification corresponding to the QoS rule.

Those skilled in the art should understand that the related description of the foregoing data transmission device in the embodiment of the present application can be understood with reference to the related description of the data transmission method in the embodiment of the present application.

FIG. 8 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application. The communication device may be a terminal device or a network device. The communication device 600 shown in FIG. 8 includes a processor 610, and the processor 610 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 8, the communication device 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

The memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.

Optionally, as shown in FIG. 8, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and specifically, may send information or data to other devices, or receive other Information or data sent by the device.

The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

Optionally, the communication device 600 may specifically be a network device according to the embodiment of the present application, and the communication device 600 may implement a corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, details are not described herein again. .

Optionally, the communication device 600 may specifically be a mobile terminal / terminal device according to the embodiment of the present application, and the communication device 600 may implement a corresponding process implemented by the mobile terminal / terminal device in each method of the embodiment of the present application, for simplicity , Will not repeat them here.

FIG. 9 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 700 shown in FIG. 9 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 9, the chip 700 may further include a memory 720. The processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.

The memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.

Optionally, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips. Specifically, the processor 710 may obtain information or data sent by the other devices or chips.

Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips. Specifically, the processor 710 may output information or data to the other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, details are not described herein again.

Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip can implement the corresponding process implemented by the mobile terminal / terminal device in each method of the embodiments of the present application. For simplicity, here No longer.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-level chip, a system chip, a chip system or a system-on-chip.

FIG. 10 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in FIG. 10, the communication system 900 includes a terminal device 910 and a network device 920.

The terminal device 910 may be used to implement the corresponding functions implemented by the terminal device in the foregoing method, and the network device 920 may be used to implement the corresponding functions implemented by the network device in the foregoing method. For brevity, details are not described herein again. .

It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip and has a signal processing capability. In the implementation process, each step of the foregoing method embodiment may be completed by using an integrated logic circuit of hardware in a processor or an instruction in a form of software. The above processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA), or other Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. A general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present application may be directly implemented by a hardware decoding processor, or may be performed by using a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the foregoing method in combination with its hardware.

It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory. The volatile memory may be Random Access Memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM ) And direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (Double SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct RAMbus RAM, DR RAM) and so on. That is, the memories in the embodiments of the present application are intended to include, but not limited to, these and any other suitable types of memories.

An embodiment of the present application further provides a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application. For simplicity, here No longer.

Optionally, the computer-readable storage medium may be applied to the mobile terminal / terminal device in the embodiment of the present application, and the computer program causes the computer to execute a corresponding process implemented by the mobile terminal / terminal device in each method in the embodiment of the present application. For the sake of brevity, I won't repeat them here.

An embodiment of the present application further provides a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instruction causes the computer to execute a corresponding process implemented by the network device in each method in the embodiment of the present application. More details.

Optionally, the computer program product can be applied to a mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute a corresponding process implemented by the mobile terminal / terminal device in each method in the embodiments of the present application, For brevity, I will not repeat them here.

The embodiment of the present application also provides a computer program.

Optionally, the computer program may be applied to a network device in the embodiment of the present application. When the computer program is run on a computer, the computer is caused to execute a corresponding process implemented by the network device in each method in the embodiment of the present application. , Will not repeat them here.

Optionally, the computer program may be applied to a mobile terminal / terminal device in the embodiment of the present application. When the computer program is run on a computer, the computer executes each method in the embodiment of the application by the mobile terminal / terminal device. The corresponding processes are not repeated here for brevity.

Those of ordinary skill in the art may realize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and are not repeated here.

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

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.

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

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used 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 application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory) ROM, random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes .

The above is only a specific implementation of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A data transmission method, the method includes:

Receiving, by a first node, first indication information sent by a second node, where the first indication information is used to instruct a first quality of service flow QoS Flow corresponding to a first data flow identifier to execute a first processing mechanism;

The first processing mechanism includes: the first node determines second packet information based on first packet information in a first QoS Flow corresponding to the first data flow identifier, and the first QoS Flow corresponds to The first QoS rule transmits a data packet that satisfies the second data packet information through a QoS flow corresponding to the first QoS rule.
The method according to claim 1, wherein:

The first indication information is further used to indicate a correspondence between at least one application identifier and the first data flow identifier; and / or, the first indication information is further used to indicate an application identifier and at least one of the first Correspondence between data flow identifiers.
The method according to claim 2, wherein the first indication information is further used to indicate a correspondence relationship between at least one application identifier and the first data stream identifier:

A data packet corresponding to the at least one application identifier is transmitted through a first QoS Flow corresponding to the first data flow identifier.
The method according to claim 2, wherein the first indication information is further used to indicate a correspondence relationship between an application identifier and at least one of the first data stream identifiers:

A data packet corresponding to the one application identifier is transmitted through at least one first QoS Flow corresponding to at least one of the first data flow identifiers.
The method according to any one of claims 1 to 4, wherein in the first processing mechanism:

The source address in the first data packet information is a destination address in the second data packet information, and the destination address in the first data packet information is a source address in the second data packet information; and / or,

The source port number in the first data packet information is a destination port number in the second data packet information, and the destination port number in the first data packet information is a source port in the second data packet information. number.
The method according to any one of claims 1 to 5, wherein when the first node is a terminal and the second node is a first core network element:

After receiving the first indication information, the terminal determines the second data packet information of the uplink data packet based on the first data packet information of the downlink data packet in the first QoS Flow corresponding to the first data flow identifier, Transmitting the uplink data packet that satisfies the second data packet information through the QoS Flow corresponding to the first QoS rule.
The method according to any one of claims 1 to 5, wherein in a case where the first node is a second core network element and the second node is a first core network element:

After the network element of the second core network receives the first instruction information, based on the first data packet information of the uplink data packet in the first QoS Flow corresponding to the first data flow identifier, determine the Two data packet information, and a downlink data packet satisfying the second data packet information is transmitted through a QoS flow corresponding to the first QoS rule.
The method according to any one of claims 1 to 7, wherein the first indication information is sent by the second node to the first node during a session establishment process and / or a session modification process.
The method according to any one of claims 1 to 8, wherein the method further comprises:

The first node sends second instruction information to the second node, where the second instruction information is used to indicate whether the first node supports the capability of the first processing mechanism.
The method according to any one of claims 1 to 9, wherein the first node starts a first timer after receiving the first indication information; and executes the first timer before the first timer times out. A processing mechanism.
A data transmission method, the method includes:

A first node receives a data packet sent by a third node and executes a first processing mechanism; the data packet includes first identification information, and the first identification information is used to instruct the first node to execute the first processing mechanism;

The first processing mechanism includes: after the first node receives the first data packet carrying the first identification information, determining the second data packet information based on the first data packet information of the first data packet The first data packet is transmitted through a first QoS flow, the first QoS flow corresponds to a first QoS rule, and a data packet that satisfies the second data packet information is performed through a QoS flow corresponding to the first QoS rule transmission.
The method according to claim 11, wherein:

The second node sends first instruction information to the first node and / or the third node, where the first instruction information is used to indicate:

Whether to implement the first processing mechanism; and / or,

A correspondence between at least one application identifier and the first QoS rule; and / or,

A correspondence between at least one application identifier and the first processing mechanism.
The method according to claim 12, wherein the first indication information is used to indicate a correspondence relationship between at least one application identifier and the first QoS rule:

A data packet corresponding to the at least one application identifier is transmitted through a QoS Flow that meets the first QoS rule.
The method according to claim 12, wherein the first indication information is used to indicate a correspondence between at least one application identifier and the first processing mechanism:

A data packet corresponding to the at least one application identifier carries the first identification information.
The method according to any one of claims 11 to 14, wherein in the first processing mechanism:

The source address in the first data packet information is a destination address in the second data packet information, and the destination address in the first data packet information is a source address in the second data packet information; and / or,

The source port number in the first data packet information is a destination port number in the second data packet information, and the destination port number in the first data packet information is a source port in the second data packet information. number.
The method according to any one of claims 11 to 15, wherein when the first node is a second core network element and the third node is a terminal:

After the network element of the second core network receives the uplink data packet carrying the first identification information, determining the second data packet information of the downlink data packet based on the first data packet information of the uplink data packet will satisfy the The downlink data packet of the second data packet information is transmitted through the QoS Flow corresponding to the first QoS rule, and the first QoS rule is a QoS rule corresponding to the first QoS Flow where the uplink data packet is located.
The method according to any one of claims 11 to 15, wherein when the first node is a terminal and the third node is a second core network element:

After receiving the downlink data packet carrying the first identification information, the terminal determines the second data packet information of the uplink data packet based on the first data packet information of the downlink data packet, which will satisfy the second data packet information The uplink data packet is transmitted through the QoS Flow corresponding to the first QoS rule, and the first QoS rule is a QoS rule corresponding to the first QoS Flow where the downlink data packet is located.
The method according to any one of claims 12 to 14, wherein the first indication information is sent by the second node to the first node during a session establishment process and / or a session modification process.
The method according to any one of claims 11 to 18, wherein the method further comprises:

Sending, by the first node, second instruction information to the second node, where the second instruction information is used to indicate whether the first node supports a capability of a first processing mechanism and / or an application identifier corresponds to the first processing mechanism And / or the ability to identify the application corresponding to the QoS rules.
The method according to any one of claims 12 to 14, wherein the third node starts a first timer after receiving the first indication information; and executes the first timer before the first timer times out. A processing mechanism.
The method according to any one of claims 11 to 20, wherein the method comprises:

Receiving, by the first node and / or the third node, third instruction information sent by the second node, where the third instruction information is used to instruct the first node and / or the third node to activate the first processing mechanism or Turn off the first processing mechanism.
The method according to any one of claims 11 to 20, wherein the method comprises:

When the first node does not receive the relevant parameters of the first processing mechanism and / or the first node does not store the relevant parameters of the first processing mechanism, the first node closes the first processing mechanism .
The method according to claims 11 to 22, wherein the method further comprises:

The first node sends second instruction information to the second node, where the second instruction is used to indicate the ability of the first node to support a first processing mechanism.
The method according to any one of claims 11 to 23, wherein the third indication information is sent by the second node to the first node and / or the third during a session establishment and / or session modification process. node.
The method according to claim 24, wherein the third indication information further instructs the first node and / or the third node to enable or disable the first processing mechanism for a first session. .
The method according to any one of claims 21 to 25, wherein a granularity of opening and / or closing the first processing mechanism is a session.
A data transmission method, the method includes:

The terminal carries first identification information in a data packet sent to the network element of the second core network, where the first identification information is used to instruct the network element of the second core network to perform a first processing mechanism;

The first processing mechanism includes: after the second core network element receives the first data packet carrying the first identification information, determines a second data packet based on the first data packet information of the first data packet. Data packet information, the first data packet is transmitted through a first QoS flow, the first QoS flow corresponds to a first QoS rule, and a data packet that satisfies the second data packet information passes the corresponding QoS Flow is used for transmission.
The method according to claim 27, wherein the method further comprises:

Receiving, by the terminal, first indication information sent by a network element of a first core network, where the first indication information is used to indicate whether to execute a first processing mechanism;

If the first instruction information indicates that the first processing mechanism is performed, the terminal carries the first identification information in a data packet sent to a network element of the second core network.
The method according to claim 28, wherein:

The first indication information is further used to indicate a correspondence between at least one application identifier and the first QoS rule; and / or,

The first indication information is further used to indicate a correspondence between at least one application identifier and the first processing mechanism.
The method according to claim 29, wherein the first indication information is further used to indicate a correspondence relationship between at least one application identifier and the first QoS rule:

A data packet corresponding to the at least one application identifier is transmitted through a QoS Flow that meets the first QoS rule.
The method according to claim 29, wherein the first indication information is further used to indicate a correspondence relationship between at least one application identifier and the first processing mechanism:

A data packet corresponding to the at least one application identifier carries the first identification information.
The method according to any one of claims 28 to 31, wherein the first indication information is sent by the first core network element to the terminal during a session establishment process and / or a session modification process.
The method according to any one of claims 27 to 32, wherein the method further comprises:

Sending, by the terminal, second indication information to a first core network element, the second indication information is used to indicate whether the terminal supports a capability of the first processing mechanism and / or an application identifier corresponding to the capability of the first processing mechanism and And / or the ability of the application to identify a QoS rule.
The method according to any one of claims 27 to 33, wherein, in the first processing mechanism:

The source address in the first data packet information is a destination address in the second data packet information, and the destination address in the first data packet information is a source address in the second data packet information; and / or,

The source port number in the first data packet information is a destination port number in the second data packet information, and the destination port number in the first data packet information is a source port in the second data packet information. number.
A data transmission device applied to a first node. The device includes:

A receiving unit, configured to receive first instruction information sent by a second node, where the first instruction information is used to instruct a first QoS Flow corresponding to a first data flow identifier to execute a first processing mechanism;

The first processing mechanism includes: the first node determines second packet information based on first packet information in a first QoS Flow corresponding to the first data flow identifier, and the first QoS Flow corresponds to The first QoS rule transmits a data packet that satisfies the second data packet information through a QoS flow corresponding to the first QoS rule.
The apparatus according to claim 35, wherein:

The first indication information is further used to indicate a correspondence between at least one application identifier and the first data flow identifier; and / or, the first indication information is further used to indicate an application identifier and at least one of the first Correspondence between data flow identifiers.
The apparatus according to claim 36, wherein the first indication information is further used to indicate a correspondence relationship between at least one application identifier and the first data stream identifier:

A data packet corresponding to the at least one application identifier is transmitted through a first QoS Flow corresponding to the first data flow identifier.
The apparatus according to claim 36, wherein the first indication information is further used to indicate a correspondence relationship between an application identifier and at least one of the first data stream identifiers:

A data packet corresponding to the one application identifier is transmitted through at least one first QoS Flow corresponding to at least one of the first data flow identifiers.
The apparatus according to any one of claims 35 to 38, wherein, in the first processing mechanism:

The source address in the first data packet information is a destination address in the second data packet information, and the destination address in the first data packet information is a source address in the second data packet information; and / or,

The source port number in the first data packet information is a destination port number in the second data packet information, and the destination port number in the first data packet information is a source port in the second data packet information. number.
The apparatus according to any one of claims 35 to 39, wherein in a case where the first node is a terminal and the second node is a first core network element, the apparatus further includes: a processing unit;

After the receiving unit receives the first indication information, the processing unit determines the first data packet of the uplink data packet based on the first data packet information of the downlink data packet in the first QoS Flow corresponding to the first data flow identifier. The second data packet information is to transmit an uplink data packet that satisfies the second data packet information through a QoS Flow corresponding to the first QoS rule.
The apparatus according to any one of claims 35 to 39, wherein in a case where the first node is a second core network element and the second node is a first core network element: the apparatus further includes : Processing unit;

After the receiving unit receives the first instruction information, the processing unit determines the first data packet information of the uplink data packet in the first QoS Flow corresponding to the first data flow identifier. Two data packet information, and a downlink data packet satisfying the second data packet information is transmitted through a QoS flow corresponding to the first QoS rule.
The apparatus according to any one of claims 35 to 41, wherein the first indication information is sent by the second node to the first node during a session establishment process and / or a session modification process.
The device according to any one of claims 35 to 42, wherein the device further comprises:

The sending unit is configured to send second instruction information to the second node, where the second instruction information is used to indicate whether the first node supports a capability of the first processing mechanism.
The device according to any one of claims 35 to 43, further comprising: a processing unit;

After receiving the first indication information, the receiving unit starts a first timer; the processing unit executes the first processing mechanism before the first timer times out.
A data transmission device applied to a first node. The device includes:

A receiving unit, configured to receive a data packet sent by a third node, where the data packet includes first identification information, and the first identification information is used to instruct the first node to execute the first processing mechanism;

A processing unit, configured to execute a first processing mechanism, wherein the first processing mechanism includes: after the first node receives a first data packet carrying the first identification information, based on the first data packet, The first data packet information determines the second data packet information, and the first data packet is transmitted through the first QoS Flow, and the first QoS Flow corresponds to the first QoS rule, and the data packet that satisfies the second data packet information passes The QoS Flow corresponding to the first QoS rule is transmitted.
The apparatus according to claim 45, wherein:

The second node sends first indication information to the first node and / or the third node, where the first indication information is used to indicate:

Whether to implement the first processing mechanism; and / or,

A correspondence between at least one application identifier and the first QoS rule; and / or,

A correspondence between at least one application identifier and the first processing mechanism.
The apparatus according to claim 46, wherein the first indication information is used to indicate a correspondence relationship between at least one application identifier and the first QoS rule:

A data packet corresponding to the at least one application identifier is transmitted through a QoS Flow that meets the first QoS rule.
The apparatus according to claim 46, wherein the first indication information is used to indicate a correspondence relationship between at least one application identifier and the first processing mechanism:

A data packet corresponding to the at least one application identifier carries the first identification information.
The apparatus according to any one of claims 45 to 48, wherein, in the first processing mechanism:

The source address in the first data packet information is a destination address in the second data packet information, and the destination address in the first data packet information is a source address in the second data packet information; and / or,

The source port number in the first data packet information is a destination port number in the second data packet information, and the destination port number in the first data packet information is a source port in the second data packet information. number.
The apparatus according to any one of claims 45 to 49, wherein in a case where the first node is a second core network element and the third node is a terminal:

After the network element of the second core network receives the uplink data packet carrying the first identification information, determining the second data packet information of the downlink data packet based on the first data packet information of the uplink data packet will satisfy the The downlink data packet of the second data packet information is transmitted through the QoS Flow corresponding to the first QoS rule, and the first QoS rule is a QoS rule corresponding to the first QoS Flow where the uplink data packet is located.
The apparatus according to any one of claims 45 to 49, wherein in a case where the first node is a terminal and the third node is a second core network element:

After the receiving unit receives the first indication information, the processing unit carries the first identification information in a downlink data packet sent to the terminal, and the terminal receives the first identification information carrying the first identification information. After the downlink data packet, the second data packet information of the uplink data packet is determined based on the first data packet information of the downlink data packet, and the uplink data packet that satisfies the second data packet information passes the first QoS Flow is used for transmission, and the first QoS rule is a QoS rule corresponding to the first QoS Flow where the downlink data packet is located.
The apparatus according to any one of claims 46 to 48, wherein the first indication information is sent by the second node to the first node during a session establishment process and / or a session modification process.
The device according to any one of claims 45 to 52, wherein the device further comprises:

A sending unit, configured to send second instruction information to the second node, where the second instruction information is used to indicate whether the first node supports a first processing mechanism capability and / or an application identifier corresponding to the first processing mechanism And / or the ability to identify the application corresponding to the QoS rules.
The apparatus according to any one of claims 46 to 48, wherein the third node starts a first timer after receiving the first indication information; and executes the first timer before the first timer times out. A processing mechanism.
The apparatus according to any one of claims 45 to 54, wherein the receiving unit is further configured to receive third instruction information sent by a second node, where the third instruction information is used to indicate the first node and / Or the third node enables the first processing mechanism or closes the first processing mechanism.
The apparatus according to any one of claims 45 to 54, wherein the first node has not received the relevant parameters of the first processing mechanism and / or the first node has not stored the parameters of the first processing mechanism. When the parameter is related, the first node turns off the first processing mechanism.
The device according to any one of claims 45 to 56, wherein the device further comprises:

The sending unit is configured to send second instruction information to the second node, where the second instruction is used to indicate the ability of the first node to support a first processing mechanism.
The apparatus according to any one of claims 45 to 57, wherein the third indication information is sent by the second node to the first node and / or the third during a session establishment and / or a session modification process. node.
The apparatus according to claim 58, wherein the third indication information further instructs the first node and / or the third node to enable or disable the first processing mechanism for a first session. .
The apparatus according to any one of claims 55 to 59, wherein a granularity of the opening and / or closing of the first processing mechanism is a session.
A data transmission device applied to a terminal. The device includes:

A processing unit, configured to carry first identification information in a data packet sent to a second core network element, where the first identification information is used to instruct the second core network element to perform a first processing mechanism;

The first processing mechanism includes: after the second core network element receives the first data packet carrying the first identification information, determines a second data packet based on the first data packet information of the first data packet. Data packet information, the first data packet is transmitted through a first QoS flow, the first QoS flow corresponds to a first QoS rule, and a data packet that satisfies the second data packet information passes the corresponding QoS Flow is used for transmission.
The apparatus according to claim 61, wherein the apparatus further comprises:

A receiving unit, configured to receive first instruction information sent by a network element of a first core network, where the first instruction information is used to indicate whether to execute a first processing mechanism;

If the first instruction information indicates that the first processing mechanism is performed, the processing unit carries the first identification information in a data packet sent to the network element of the second core network.
The apparatus according to claim 62, wherein:

The first indication information is further used to indicate a correspondence between at least one application identifier and the first QoS rule; and / or,

The first indication information is further used to indicate a correspondence between at least one application identifier and the first processing mechanism.
The apparatus according to claim 63, wherein the first indication information is further used to indicate a correspondence relationship between at least one application identifier and the first QoS rule:

A data packet corresponding to the at least one application identifier is transmitted through a QoS Flow that meets the first QoS rule.
The apparatus according to claim 63, wherein the first indication information is further used to indicate a correspondence relationship between at least one application identifier and the first processing mechanism:

A data packet corresponding to the at least one application identifier carries the first identification information.
The apparatus according to any one of claims 62 to 65, wherein the first indication information is sent by the first core network element to the terminal during a session establishment process and / or a session modification process.
The device according to any one of claims 61 to 66, wherein the device further comprises:

A sending unit, configured to send second instruction information to a first core network element, where the second instruction information is used to indicate whether the terminal supports a capability of the first processing mechanism and / or an application identifier corresponding to the first processing mechanism Capabilities and / or applications identify capabilities corresponding to QoS rules.
The apparatus according to any one of claims 61 to 67, wherein, in the first processing mechanism:

The source address in the first data packet information is a destination address in the second data packet information, and the destination address in the first data packet information is a source address in the second data packet information; and / or,

The source port number in the first data packet information is a destination port number in the second data packet information, and the destination port number in the first data packet information is a source port in the second data packet information. number.
A communication device includes a processor and a memory, where the memory is configured to store a computer program, and the processor is configured to call and run the computer program stored in the memory, and execute the method according to any one of claims 1 to 10. The method, or the method according to any one of claims 11 to 26, or the method according to any one of claims 27 to 34.
A chip includes: a processor for calling and running a computer program from a memory, so that a device having the chip executed the method according to any one of claims 1 to 10, or claims 11 to 26 The method according to any one of the claims, or the method according to any one of claims 27 to 34.
A computer-readable storage medium for storing a computer program, the computer program causing a computer to perform the method according to any one of claims 1 to 10, or the method according to any one of claims 11 to 26 Or the method according to any one of claims 27 to 34.
A computer program product comprising computer program instructions that cause a computer to perform the method according to any one of claims 1 to 10, or the method according to any one of claims 11 to 26, or a right The method according to any one of claims 27 to 34.
A computer program that causes a computer to perform the method according to any one of claims 1 to 10, or the method according to any one of claims 11 to 26, or any one of claims 27 to 34 The method of one item.