WO2024040818A1 - Near-field communication control method, traffic statistics method, apparatus, and medium - Google Patents

Abstract

A near-field communication control method, a traffic statistics method, an apparatus, and a medium. The near-field communication control method comprises: if it is detected that a connection to an upstream relay terminal is successfully established, establishing a first non-3GPP session of the terminal by means of an access connection established by an N3IWF corresponding to the terminal, wherein the first non-3GPP session carries service traffic initiated and encapsulated by the terminal; and performing bypass transparent transmission processing on service traffic of a downstream terminal, and enabling the downstream terminal to establish a second non-3GPP session by means of a second non-3GPP access connection established by an N3IWF corresponding to the downstream terminal, wherein the second non-3GPP session carries service traffic initiated and encapsulated by the downstream terminal. The terminal at each stage is enabled to establish a non-3GPP session which only carries its own service traffic, and only perform bypass transparent transmission processing on the service traffic of the downstream terminal.

Description

Control method, traffic statistics method, device and medium for near-field communication

cross reference

This disclosure requests the priority of the Chinese patent application with application number 202211009341.6 and titled "Control method, traffic statistics method, device and medium for near-field communication" submitted on August 22, 2022. The entire content of the Chinese patent application All incorporated herein by reference.

Technical field

The present disclosure relates to the field of communication technology, and specifically, to a near-field communication control method, traffic statistics method, device, and computer-readable storage medium.

Background technique

Near field communication is a new communication mode proposed by the Third Generation Partnership Project (3GPP) organization and defined as a method that allows mobile terminals to communicate through PC5 without mobile network coverage. , WIFI and other near-domain connection technologies directly perform device-to-device (D2D) communication or rely on other new terminals to connect to mobile networks. Based on near-field communication, end users can connect to other terminals (also called relay terminals) through wireless technology, and connect to the Internet through the mobile communication network services of the relay terminal, thereby improving the spectrum efficiency of the communication system.

However, in the case of multi-level relay networking, traffic will be superimposed layer by layer. In this case, there are currently no relevant standards and research on how to ensure user-level traffic security and achieve traffic traceability.

Contents of the invention

In order to solve the above technical problems, embodiments of the present disclosure provide a near-field communication control method, a traffic statistics method, a device, and a computer-readable storage medium to facilitate traceability and statistics of business traffic in near-field communication.

According to an aspect of an embodiment of the present disclosure, a near-domain communication control method is provided, which is applied to a terminal. The terminal is indirectly connected to the base station through an upstream relay terminal. The upstream relay terminal includes at least one level one relay terminal. The relay terminal connects to the base station through the new air interface NR. The method includes: if it is detected that the connection with the upstream relay terminal is successfully established, then establishing the first non-3rd Generation Partnership Project 3GPP session of the terminal, and the first non-3GPP session communicates with the terminal through The first non-3GPP access connection established by the corresponding non-3GPP interworking function N3IWF is established; among them, the first non-3GPP session carries the service traffic initiated and encapsulated by the terminal; a connection is established with the downstream terminal, and the service of the downstream terminal is The traffic is bypassed and transparently transmitted to separate it from the session traffic of the terminal itself, and the service traffic of the downstream terminal is forwarded through the connection with the upstream relay terminal, so that the downstream terminal passes through the second non-3GPP established by the N3IWF corresponding to the downstream terminal. The access connection establishes a second non-3GPP session; wherein the second non-3GPP session carries service traffic initiated and encapsulated by the downstream terminal.

In some embodiments, the terminal is a remote terminal; before establishing a first non-3GPP session of the terminal if it is detected that the connection with the upstream relay terminal is successfully established, the method further includes: obtaining an accessible candidate upstream relay terminal. Set; confirm the upstream relay terminal to be connected based on the information of each candidate upstream relay terminal in the candidate upstream relay terminal set; initiate a connection request to the upstream relay terminal so that the upstream relay terminal establishes a connection with the terminal according to the connection request .

In some embodiments, initiating a connection request to the upstream relay terminal so that the upstream relay terminal establishes a connection with the terminal according to the connection request includes: generating a connection request according to terminal information corresponding to the terminal; sending a connection request to the upstream relay terminal, This enables the upstream relay terminal to verify the terminal information corresponding to the terminal in the connection request, and allocate the Internet protocol address corresponding to the terminal after passing the verification; establish a connection with the upstream relay terminal based on the Internet protocol address.

In some embodiments, the terminal is a remote terminal; if it is detected that the connection with the upstream relay terminal is successfully established, the first non-3GPP session of the terminal is established, and the first non-3GPP session passes through the non-3rd generation partner corresponding to the terminal. The establishment of the first non-3GPP access connection established by the planned interworking function N3IWF includes: generating a first Internet key exchange protocol IKE packet according to the terminal information corresponding to the terminal, and sending the first IKE packet to the upstream relay terminal, so that the upstream After the terminal forwards the first IKE packet to the N3IWF corresponding to the terminal, so that the N3IWF corresponding to the terminal passes the verification of the first IKE packet, the first data based on the Internet Protocol Security Network Protocol IPSec is established between the N3IWF corresponding to the terminal and the terminal. Transmission tunnel; establish a first non-3GPP access connection via the upstream relay terminal through the N3IWF corresponding to the terminal according to the first data transmission tunnel; establish a first non-3GPP session of the terminal according to the first non-3GPP access connection.

In some embodiments, a connection is established with the downstream terminal, the service traffic of the downstream terminal is bypassed and transparently transmitted, and the service traffic of the downstream terminal is forwarded through the connection with the upstream relay terminal, so that the downstream terminal establishes a connection with the corresponding N3IWF The second non-3GPP access connection establishes a second non-3GPP session, including: receiving the second IKE packet sent by the downstream terminal, the second IKE packet is generated based on the terminal information corresponding to the downstream terminal; bypassing and transparently transmitting the second IKE packet Forward to the upstream relay terminal, so that the upstream relay terminal forwards the second IKE packet to N3IWF, so that after N3IWF passes the verification of the second IKE packet, a second data transmission tunnel based on IPSec is established between N3IWF and the downstream terminal. , so that the downstream terminal establishes a second non-3GPP access connection via the terminal and the upstream relay terminal through the N3IWF according to the second data transmission tunnel, so as to establish a second non-3GPP session according to the second non-3GPP access connection, wherein the terminal becomes Relay terminal.

In some embodiments, there are one or more terminals, the plurality of terminals are connected in sequence, and at least one terminal among the plurality of terminals is connected to a first-level relay terminal.

In some embodiments, there are one or more downstream terminals, and the terminals respectively perform bypass and transparent transmission processing on the service traffic of multiple downstream terminals.

According to one aspect of the embodiment of the present disclosure, a traffic statistics method is provided. The terminal is indirectly connected to the base station through an upstream relay terminal. The upstream relay terminal includes at least one first-level relay terminal. The first-level relay terminal passes through the new air interface NR. Connected to the base station, the terminal establishes a first non-3GPP session through the first non-3GPP access connection established by the N3IWF corresponding to the terminal. The terminal is connected to the downstream terminal, and the downstream terminal establishes a second non-3GPP access through the N3IWF corresponding to the downstream terminal. The connection establishes a second non-3GPP session, the first non-3GPP session carries service traffic initiated and encapsulated by the terminal, and the second non-3GPP session carries business traffic initiated and encapsulated by the downstream terminal; the method includes: modifying the session anchor corresponding to the first non-3GPP session Perform statistics on the traffic recorded by the point to confirm the service traffic usage corresponding to the terminal; perform statistics on the traffic recorded in the session anchor point corresponding to the second non-3GPP session to confirm the service traffic usage corresponding to the downstream terminal.

In some embodiments, the upstream relay terminal is a first-level relay terminal, and the first-level relay terminal has established an NR session with the base station; the method also includes: obtaining the total traffic recorded by the session anchor point corresponding to the NR session; and corresponding The destination address is to eliminate all traffic whose current address is N3IWF; confirm the business traffic usage corresponding to the first-level relay terminal based on the elimination results.

According to one aspect of an embodiment of the present disclosure, a near-domain communication control device is provided, which is applied to a terminal. The terminal is indirectly connected to a base station through an upstream relay terminal. The upstream relay terminal includes at least one level one relay terminal. The relay terminal is connected to the base station through the new air interface NR. The device includes: a connection establishment device configured to establish the first non-3rd Generation Partnership Project 3GPP session of the terminal if it detects that the connection with the upstream relay terminal is successfully established. The non-3GPP session is established through the first non-3GPP access connection established by the non-3GPP interworking function N3IWF corresponding to the terminal; wherein, the first non-3GPP session carries the service traffic initiated and encapsulated by the terminal; the bypass transparent transmission device, It is configured to establish a connection with the downstream terminal, perform bypass transparent transmission on the downstream terminal's service traffic, and forward the downstream terminal's service traffic through the connection with the upstream relay terminal, so that the downstream terminal passes through the second N3IWF established with the downstream terminal. The non-3GPP access connection establishes a second non-3GPP session; wherein the second non-3GPP session carries service traffic initiated and encapsulated by the downstream terminal.

According to one aspect of the embodiment of the present disclosure, a traffic statistics device is provided. The terminal is indirectly connected to the base station through the first-level relay terminal. The first-level relay terminal is connected to the base station through the new air interface NR. The terminal is established through the N3IWF corresponding to the terminal. The first non-3GPP access connection establishes the first non-3GPP session. The terminal connects to the downstream terminal. The downstream terminal establishes the second non-3GPP session through the second non-3GPP access connection established by the N3IWF corresponding to the downstream terminal. The first non-3GPP session is established. The session carries the service traffic initiated and encapsulated by the terminal, and the second non-3GPP session carries the service traffic initiated and encapsulated by the downstream terminal; the device includes: a first confirmation device configured to perform traffic processing on the session anchor record corresponding to the first non-3GPP session. Statistics are used to confirm the service traffic usage corresponding to the terminal; the second confirmation device is configured to make statistics on the traffic recorded by the session anchor point corresponding to the second non-3GPP session, and confirm the service traffic usage corresponding to the downstream terminal.

According to one aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the above near-field communication control method or traffic statistics method is implemented.

According to an aspect of an embodiment of the present disclosure, an electronic device is provided, including one or more processors; a storage device configured to store one or more programs, and when the one or more programs are executed by the electronic device, the electronic device The device implements the above near-domain communication control method or traffic statistics method.

In the technical solution provided by the embodiments of the present disclosure, the first non-3GPP session is established through the first non-3GPP access connection established with the N3IWF corresponding to the terminal, and a connection is established with the downstream terminal to bypass the business traffic of the downstream terminal. transmission processing, so that the downstream terminal establishes a second non-3GPP session through the second non-3GPP access connection established by the N3IWF corresponding to the downstream terminal. The first non-3GPP session is used to carry the service traffic initiated and encapsulated by the terminal. The second non-3GPP session Sessions are used to carry business traffic initiated and encapsulated by downstream terminals, so that the session user planes of terminals at all levels except the first-level relay terminal are independent, and there is no nesting relationship. Each terminal is established to only carry its own business traffic. non-3GPP sessions, and only performs bypass transparent transmission processing on the downstream terminal's service traffic, which can achieve safe isolation of different terminals' service traffic for multi-level relay near-domain communication, and facilitate each terminal's traceability and billing of service traffic.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts. In the attached picture:

FIG. 1 is a schematic diagram of an exemplary application environment in which the technical solutions of embodiments of the present disclosure can be applied.

FIG. 2 is a flowchart of a control method for near-field communication according to an exemplary embodiment of the present disclosure.

FIG. 3 is a schematic diagram of a downstream terminal, a connection between the terminal and an upstream relay terminal, according to an exemplary embodiment of the present disclosure.

Figure 4 is a schematic diagram of session establishment between terminals according to an exemplary embodiment of the present disclosure.

FIG. 5 is a schematic diagram of a multi-level relay data transmission tunnel according to an exemplary embodiment of the present disclosure.

FIG. 6 is a schematic connection diagram when there are multiple terminals according to an exemplary embodiment of the present disclosure.

FIG. 7 is a flow chart of a traffic statistics method according to an exemplary embodiment of the present disclosure.

FIG. 8 is a flowchart of a near-field communication control method and a traffic statistics method according to an exemplary embodiment of the present disclosure.

FIG. 9 is a block diagram of a near-field communication control device according to an exemplary embodiment of the present disclosure.

FIG. 10 is a block diagram of a traffic statistics device according to an exemplary embodiment of the present disclosure.

FIG. 11 is a schematic structural diagram of a computer system suitable for implementing an electronic device according to an embodiment of the present disclosure.

Detailed ways

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations that are identical to the present disclosure. Rather, they are merely examples of apparatus and methods common to aspects of the disclosure as detailed in the appended claims.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in the form of an application program, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and/or processor devices and/or microcontroller devices. Functional entity.

The flowcharts shown in the drawings are only illustrative, and do not necessarily include all contents and operations/steps, nor must they be performed in the order described. For example, some operations/steps can be decomposed, and some operations/steps can be merged or partially merged, so the actual order of execution may change according to the actual situation.

It should be noted that the “plurality” mentioned in this disclosure refers to two or more. "And/or" describes the association of related objects, indicating that there can be three relationships. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the related objects are in an "or" relationship.

In some embodiments of the present disclosure, the control method of near-field communication can be applied in the implementation environment as shown in Figure 1. Figure 1 is a schematic diagram of the implementation environment of a near-domain communication control method according to an embodiment of the present disclosure. As shown in Figure 1, the implementation environment includes a downstream terminal, a terminal, an upstream relay terminal and a base station. Terminal 1 and the upstream relay terminal For near-domain communication, the upstream relay terminal communicates with the base station through the wireless air interface. Further, the downstream terminal may request to perform near-domain communication with the terminal, and at this time the terminal serves as a relay terminal for the downstream terminal.

Among them, the downstream terminal, terminal and upstream relay terminal have the user identity of the mobile network and can be electronic devices such as smartphones, tablets, laptops, computers, vehicle-mounted terminals, etc., but are not limited to this. The downstream terminal, terminal and upstream relay terminal may generally refer to one of multiple terminals. Those skilled in the art will know that the number of the above-mentioned downstream terminals, terminals and upstream relay terminals may be greater. For example, the above-mentioned downstream terminal, terminal and upstream relay device may be only one, or the above-mentioned downstream terminal, terminal and upstream relay device may be dozens or hundreds, or more. In this case, the above-mentioned control method for near-domain communication The implementation environment also includes other terminals. The embodiments of the present disclosure do not limit the number of terminals and device types.

Please refer to Figure 2. Figure 2 is a flow chart of a near-field communication control method according to an embodiment of the present disclosure. The near-field communication control method can be applied to the implementation environment shown in Figure 1, and can be used in the implementation environment. The terminal is specifically executed. It should be understood that this method can also be applied to other exemplary implementation environments and be specifically executed by devices in other implementation environments. This embodiment does not limit the implementation environments to which this method is applicable.

The following is a detailed introduction to the near-field communication control method proposed in the embodiment of the present disclosure, using the terminal as a specific execution subject.

As shown in Figure 2, in an exemplary embodiment, the control method of near-field communication includes at least step S210 to step S220, which are described in detail as follows:

Step S210: If it is detected that the connection is successfully established with the upstream relay terminal, the first non-3rd Generation Partnership Project 3GPP session of the terminal is established. The first non-3GPP session uses the non-3rd Generation Partnership Project interworking function corresponding to the terminal. The first non-3GPP access connection established by the N3IWF is established; wherein, the first non-3GPP session carries service traffic initiated and encapsulated by the terminal.

It should be noted that the Non-3GPP Interworking Function (N3IWF) is responsible for connecting untrusted non-3GPP access networks to the mobile communications core network, such as the fifth-generation mobile communications technology ( 5th Generation Mobile Communication Technology, 5G) core network.

The terminal establishes a connection with the upstream relay terminal, and establishes a first non-3GPP access connection with the N3IWF through the connection, and then the terminal establishes a first non-3GPP session via the upstream relay terminal according to the first non-3GPP access connection. Non-3GPP sessions only carry service traffic initiated and encapsulated by the terminal. For example, after the terminal generates a service packet, it can encapsulate the terminal's address information, corresponding N3IWF tunnel address information, etc. into the service packet according to the preset definition.

Among them, the upstream relay terminal includes at least one first-level relay terminal, and the first-level relay terminal is connected to the base station through a new radio interface (New Radio, NR).

For example, the upstream relay terminal includes a first-level relay terminal A and a non-level one terminal B1. The first-level relay terminal A communicates with the base station. The terminal B2 can establish a connection with the non-level one terminal B1 and establish a connection via the first-level relay. The first non-3GPP session between terminal A and non-level 1 terminal B1. At this time, if terminal B2 does not provide network connection services for other downstream terminals, then terminal B2 is a remote terminal. If terminal B2 provides network connection services for other downstream terminals, then terminal B2 is a relay terminal. Among them, the first-level relay terminal refers to the terminal directly connected to the base station, and the non-first-level terminal refers to the terminal indirectly connected to the base station. It can be understood that terminal B2 can also select other relay terminals for network connection, for example, choose to establish a connection with the first-level relay terminal A, and establish the first non-3GPP session via the first-level relay terminal A.

Step S220: Establish a connection with the downstream terminal, perform bypass transparent transmission processing on the downstream terminal's business traffic, and forward the downstream terminal's business traffic through the connection with the upstream relay terminal, so that the downstream terminal can pass the N3IWF corresponding to the downstream terminal. The second non-3GPP access connection establishes a second non-3GPP session; wherein the second non-3GPP session carries service traffic initiated and encapsulated by the downstream terminal.

It should be noted that the bypass and transparent transmission processing of the business traffic of the downstream terminal means that the terminal only forwards the business traffic of the downstream terminal, that is, it does not perform any processing on the data packets, including modification or encapsulation, etc. The N3IWF that establishes the second non-3GPP access connection with the downstream terminal and the N3IWF that establishes the first non-3GPP access connection with the terminal may be the same N3IWF or different N3IWFs, and this disclosure does not limit this.

The downstream terminal establishes a connection with the terminal, and establishes a second non-3GPP access connection with the N3IWF corresponding to the downstream terminal through the connection, and then the downstream terminal establishes a second non-3GPP access connection via the terminal and the upstream relay terminal according to the second non-3GPP access connection. session, the second non-3GPP session only carries the service traffic of the downstream terminal.

Among them, the upstream relay terminal includes at least one first-level relay terminal, and the first-level relay terminal is connected to the base station through a new radio interface (New Radio, NR).

It can be understood that in multi-level relay near-field communication, the order of networking of terminals at each level is top-down. For example, terminal A first connects to the Internet through the base station. At this time, terminal A can serve as a first-level relay terminal to provide Internet services for other terminals; then terminal B selects terminal A as a first-level relay terminal to connect. After the connection is successful, terminal B It can also serve as the upstream relay terminal of other terminals to provide Internet services for other terminals; then terminal C selects terminal B as the upstream relay terminal to connect, and so on. Among them, the upstream relay terminals of terminal C include terminal A and terminal B, the upstream relay terminals of terminal B include terminal A, the downstream terminals of terminal B include terminal C, and the downstream relay terminals of terminal A include terminal B and terminal C. And terminal A is a first-level relay terminal, and terminal B and terminal C are non-first-level terminals.

Exemplarily, please refer to FIG. 3 , which is a schematic diagram of a downstream terminal, a connection between the terminal and an upstream relay terminal exemplarily shown in this disclosure. As shown in Figure 3, the upstream relay terminal A is a first-level relay terminal, which is connected to the base station NG-RAN through a cellular network communication interface (Uu). Terminal B communicates with the first-level relay terminal A in the near domain. For example, the terminal B communicates with the first-level relay terminal A through a direct communication interface (PC5 or Wi-fi). The PC5 interface follows the sidelink communication protocol. The downstream terminal C communicates with the terminal B in the near domain. For example, the downstream terminal C communicates with the terminal B through the PC5. At this time, the terminal B serves as the upstream relay terminal of the downstream terminal C.

The first-level relay terminal A has established an NR session with the NG-RAN. The first-level relay terminal user plane function (UPF) network element corresponding to the first-level relay terminal A in the NR session communicates with the NG through the N3 interface. -RAN connection, constructing a UPF network element whose user plane path corresponding to the first-level relay terminal A is from the first-level relay terminal A to the NG-RAN to the first-level relay terminal A. Among them, the N3 interface is the interface between access equipment (such as 5G base stations, N3IWF) and UPF network elements. It is mainly used to transmit uplink and downlink user plane data between access equipment and UPF network elements.

Terminal B establishes a first non-3GPP access connection with N3IWF, and establishes a first non-3GPP session corresponding to terminal B through the first non-3GPP access connection. Terminal B corresponding to terminal B in the first non-3GPP session The user plane function (UPF) network element is connected to the N3IWF through the N3 interface. The N3IWF is connected to the UPF network element of the first-level relay terminal A through the N6 interface. The user plane path corresponding to the terminal B is constructed from terminal B to the first-level relay terminal. From relay terminal A to NG-RAN to the UPF network element of primary relay terminal A to N3IWF to the UPF network element of terminal B. The user plane path corresponding to terminal B can be understood as the service data in terminal B when terminal B performs service access. The routing and forwarding path between the session anchor UPF network element and the session anchor UPF network element. Among them, the N6 interface is the interface between the UPF network element and the Data Network (DN), and is used to transmit upstream and downlink user data flows between UPF and DN.

The downstream terminal C establishes a second non-3GPP access connection with the N3IWF, and establishes a second non-3GPP session corresponding to the downstream terminal C through the second non-3GPP access connection. The downstream terminal C in the second non-3GPP session corresponds to The user plane function (UPF) network element of the downstream terminal C is connected to the N3IWF through the N3 interface, and the N3IWF is connected to the UPF network element of the first-level relay terminal A through the N6 interface to construct the user plane path corresponding to the downstream terminal C. It is the UPF network element from downstream terminal C to terminal B to the first-level relay terminal A to NG-RAN to the first-level relay terminal A to the UPF network element from N3IWF to the downstream terminal C. The user plane path corresponding to the downstream terminal C can be understood. It is the routing and forwarding path of service data between the downstream terminal C and the session anchor UPF network element when the downstream terminal C performs service access.

In addition, the terminal shown in Figure 3 is connected to the upstream relay terminal, and the downstream terminal is connected to the terminal. However, those skilled in the art can understand that the terminal and the downstream terminal can also be connected to different network devices.

In the near-domain communication control method provided by this disclosure, the terminal establishes the first non-3GPP session through the first non-3GPP access connection established with the N3IWF, establishes a connection with the downstream terminal, and performs bypass transparent transmission processing on the downstream terminal's business traffic. So that the downstream terminal establishes a second non-3GPP session through the second non-3GPP access connection established with the N3IWF. The first non-3GPP session is used to carry the service traffic initiated and encapsulated by the terminal, and the second non-3GPP session is used to carry the service traffic initiated and encapsulated by the downstream terminal. And encapsulated business traffic, so that the session user planes of terminals at all levels except the first-level relay terminal are independent, and there is no nesting relationship. Each terminal except the first-level relay terminal is established separately and only carries itself. Non-3GPP sessions of business traffic, and only bypass transparent transmission processing of the business traffic of downstream terminals, which can realize the safe user plane and business traffic security isolation of different terminals for the near-domain communication of multi-level relays, so as to facilitate the subsequent isolation of different terminals. The business traffic is processed such as traceability and billing.

In some embodiments, the terminal is a remote terminal; before the first non-3GPP session of the terminal is established if it is detected that the connection with the upstream relay terminal is successfully established, the method further includes: obtaining the accessible candidate upstream terminal. A set of relay terminals; according to the information of each candidate upstream relay terminal in the set of candidate upstream relay terminals, confirm the upstream relay terminal to be connected; initiate a connection request to the upstream relay terminal so that the upstream relay terminal can communicate with all candidate upstream relay terminals according to the connection request. The terminal establishes a connection.

In order to establish a direct link between the terminal and the upstream relay terminal, the terminal is required to be able to detect and discover the upstream relay terminal that can be connected.

For example, the use of Evolved-UMTS Terrestrial Radio Access (E-UTRA) or Wireless Local Area Network (Wireless Local Area Network, WLAN) direct radio signal detection and identification of nearby areas is defined in 3GPP standard TS 23.303 ProSe Direct Discovery (ProSe Direct Discovery) process of another UE process. The proximity service direct discovery process is hereinafter referred to as the direct discovery process. According to the provisions of 3GPP standard TS23.303 5.3.1.2, the direct discovery process includes two modes, namely, mode A and mode B.

Among them, in mode A, the upstream relay terminal sends a broadcast message for direct discovery (UE-to-Network Relay Discovery Announcement message), and the terminal monitors the broadcast message.

In mode B, the terminal sends a request message (UE-to-Network Relay Discovery Solicitation message) for direct discovery, and the upstream relay terminal that matches the relay service code (Relay Service Code) contained in the request message sends a request message to the terminal. Response message (UE-to-Network Relay Discovery Response message).

After the terminal detects and discovers one or more candidate upstream relay terminals (candidate relay UE) through the above direct discovery process, it selects a candidate upstream relay terminal that meets the conditions to establish a direct link. For example, terminal B1 discovers the upstream relay terminal B1 and the upstream relay terminal B2 through the direct discovery detection process, and selects the upstream relay terminal B1 that meets the conditions to establish a direct link. The conditions here may include but are not limited to: meeting ProSe layer criteria, meeting access layer criteria, etc.

If there are multiple candidate upstream relay terminals, that is, if multiple candidate upstream relay terminals are found that meet the above conditions, then the candidate upstream with the highest ranking according to the access layer criteria is selected. The relay terminal serves as the upstream relay terminal to be connected.

The communication between the terminal and the upstream relay terminal can be one-to-one ProSe Direct Communication, or Wi-Fi (Wireless Fidelity) communication and direct communication between two or more nearby users. Other types of wireless communication between devices.

For example, please refer to Figure 4, which is a schematic diagram of session establishment between terminals. As shown in Figure 4, the first-level relay terminal establishes an NR session, and the first-level relay terminal sends a broadcast message for direct discovery. Then the terminal discovers the first-level relay terminal through the direct discovery and detection process, establishes a connection with the first-level relay terminal, and establishes a first non-3GPP session through the connection to divert the service traffic related to the terminal to the first non-3GPP in session. At the same time, the terminal sends a broadcast message for direct discovery, so that the downstream terminal discovers the terminal through the direct discovery detection process, enables the downstream terminal to establish a connection with the terminal, and establishes a second non-3GPP session through the connection to communicate with the downstream terminal. Service traffic is directed to the second non-3GPP session. The NR session of the first-level relay terminal aggregates its own service traffic and the service traffic of downstream terminals corresponding to all first-level relay terminals. The terminal bypasses and transparently transmits the service traffic of the downstream terminals outside the first non-3GPP session.

As mentioned above, after the terminal successfully establishes a direct link with the upstream relay terminal to be connected through direct discovery and selection, the terminal can communicate with the network through the upstream relay terminal.

Similarly, those skilled in the art can understand that the above-mentioned process of establishing a connection between a terminal and an upstream relay terminal is the same as the process of establishing a connection between a downstream terminal and a terminal.

In some embodiments, initiating a connection request to the upstream relay terminal so that the upstream relay terminal establishes a connection with the terminal according to the connection request includes: generating a connection request according to terminal information corresponding to the terminal; sending a connection request to the upstream relay terminal, This enables the upstream relay terminal to verify the terminal information corresponding to the terminal in the connection request, and allocate the Internet protocol address corresponding to the terminal after passing the verification; establish a connection with the upstream relay terminal based on the Internet protocol address.

For example, after receiving the connection request initiated by the terminal, the upstream relay terminal executes the Dynamic Host Configuration Protocol (Dynamic Host Configuration Protocol, DHCP) server function to allocate an Internet Protocol (Internet Protocol, IP) address to the terminal.

Among them, DHCP is a dynamic address allocation scheme and address configuration protocol based on the TCP/IP (Transmission Control Protocol/Internet Protocol) protocol.

In some embodiments, the terminal is a remote terminal; if it is detected that the connection with the upstream relay terminal is successfully established, the first non-3GPP session of the terminal is established, and the first non-3GPP session passes through the non-third-generation partner corresponding to the terminal. The establishment of the first non-3GPP access connection established by the planned interworking function N3IWF includes: generating a first Internet key exchange protocol IKE packet according to the terminal information corresponding to the terminal, and sending the first IKE packet to the upstream relay terminal, so that the upstream After the terminal forwards the first IKE packet to the N3IWF corresponding to the terminal, so that the N3IWF corresponding to the terminal passes the verification of the first IKE packet, the first data based on the Internet Protocol Security Network Protocol IPSec is established between the N3IWF corresponding to the terminal and the terminal. Transmission tunnel; establish a first non-3GPP access connection via the upstream relay terminal through the N3IWF corresponding to the terminal according to the first data transmission tunnel; establish a first non-3GPP session of the terminal according to the first non-3GPP access connection.

The terminal accesses the non-3GPP network through the upstream relay terminal, and after selecting N3IWF, executes the IKE-SA process. IKE-SA refers to the IKE Security Alliance. The function of the IKE-SA process is to establish an insecure network for subsequent use. A secure transmission channel for the Non-access stratum (NAS) authentication process to ensure the security of message transmission in the subsequent NAS authentication process. For example, the terminal generates a first Internet Key Exchange Protocol (IKE) packet based on its own terminal information, such as encrypting terminal identification, IP address and other information to obtain the terminal's identity certificate, and generates the first Internet Key Exchange Protocol (IKE) package based on the terminal's identity certificate. The first IKE bag. Then, the first IKE packet is sent to the upstream relay terminal, and the upstream relay terminal forwards the first IKE packet to N3IWF, and N3IWF performs first identity authentication on the terminal based on the first IKE packet. After the authentication result of the first identity authentication is passed, the Internet Security Protocol IPsec (Internet Protocol Security) SA process is executed. IPsec-SA refers to the IPsec Security Alliance, and a secure first data transmission tunnel is established for the terminal through the IPsec-SA process ( First IPsec tunnel), all subsequent NAS signaling is transmitted through the secure first data transmission tunnel.

Further, after the first data transmission tunnel is established, the terminal establishes its first non-3GPP session via the upstream relay terminal.

In some embodiments, a connection is established with a downstream terminal, the business traffic of the downstream terminal is bypassed and transparently transmitted, and the business traffic of the downstream terminal is forwarded through the connection with the upstream relay terminal, so that the downstream terminal passes through the network corresponding to the downstream terminal. The second non-3GPP access connection established by N3IWF establishes the second non-3GPP session, including: receiving the second IKE packet sent by the downstream terminal. The second IKE packet is generated based on the terminal information corresponding to the downstream terminal; The Reuters transmission is forwarded to the upstream relay terminal, so that the upstream relay terminal forwards the second IKE packet to the N3IWF corresponding to the downstream terminal, so that after the N3IWF corresponding to the downstream terminal passes the verification of the second IKE packet, the N3IWF corresponding to the downstream terminal Establish a second IPSec-based data transmission tunnel with the downstream terminal, so that the downstream terminal establishes a second non-3GPP access connection via the terminal and the upstream relay terminal through the N3IWF corresponding to the downstream terminal according to the second data transmission tunnel, so as to The second non-3GPP access connection establishes a second non-3GPP session, in which the terminal becomes a relay terminal.

The terminal establishes a connection with the downstream terminal and performs bypass transparent transmission on the downstream terminal's service traffic, allowing the downstream terminal to access the non-3GPP network. After selecting N3IWF, the IKE-SA process is executed. For example, the downstream terminal generates a second Internet Key Exchange Protocol (IKE) packet based on its own downstream terminal information, such as encrypting the downstream terminal identification, IP address and other information to obtain the identity certificate of the downstream terminal. The terminal's identity certificate generates a second IKE packet. Then, the downstream terminal sends the second IKE packet to the terminal, and the terminal forwards the second IKE packet to the upstream relay terminal in bypass transparent transmission. The upstream relay terminal forwards the second IKE packet to N3IWF, and N3IWF responds to the terminal based on the second IKE packet. Perform second identity authentication. After the authentication result of the second identity authentication is passed, the Internet Security Protocol IPsec-SA process is executed, and a secure second data transmission tunnel (second IPsec tunnel) is established for the terminal through the IPsec-SA process. All subsequent NAS signaling All are transmitted through a secure secondary data transmission tunnel.

Further, after the second data transmission tunnel is established, the downstream terminal establishes its second non-3GPP session via the terminal and the upstream relay terminal.

All non-first-level terminals establish IPsec tunnels with N3IWF. After the IPsec tunnel is established, GTP (GPRS Tunneling Protocol, GPRS Tunneling Protocol) tunnels corresponding to each terminal are established with the session anchor UPF network element of each non-first-level terminal, and finally form a terminal End-to-end secure user interface.

For example, please refer to Figure 5, which is a schematic diagram of a multi-level relay data transmission tunnel. As shown in Figure 5, the NR session between the first-level relay terminal and the first-level relay terminal UPF network element includes the NR secure connection and GTP tunnel corresponding to the first-level relay terminal, and the first non-3GPP session between the terminal and the terminal UPF network element. Including the IPsec tunnel and GTP tunnel corresponding to the terminal, the downstream terminal and the second non-3GPP session of the downstream terminal UPF network element include the IPsec tunnel and GTP tunnel corresponding to the downstream terminal, so that the non-3GPP access tunnels of each terminal are not nested, simplifying The network tunnel processing is ensured, network performance is ensured, and the business traffic of different terminals is safely isolated, so that the business traffic of different terminals can be traced and billed later.

In some embodiments, there are one or more terminals, the plurality of terminals are connected in sequence, and at least one terminal among the plurality of terminals is connected to a first-level relay terminal.

For example, as shown in Figure 6, the terminals include terminal B1, terminal B2 and terminal B3. The first-level relay terminal A is connected to the base station, the terminal B1, the terminal B2 and the terminal B3 are connected in sequence, and the terminal B1 is connected to the first-level relay Terminal A is connected, and terminal B3 is connected to downstream terminal C. At this time, terminal B1, terminal B2, terminal B3, and downstream terminal C all serve as non-level terminals, that is, terminals indirectly connected to the base station, and downstream terminal C serves as a remote terminal, that is, a terminal that does not provide network connection services for other terminals. . It should be noted that Figure 5 is only a schematic illustration of the number of terminals. There may be more relay terminals between the actual remote terminal and the first-level relay terminal, and this disclosure does not limit this.

It can be understood that the upstream relay terminal and downstream terminal mentioned in this disclosure are confirmed according to the location of the execution subject. For example, when terminal B2 serves as the execution subject of the control method of near domain communication, then the upstream relay terminal It includes first-level relay terminal A and terminal B1, and the downstream terminal includes terminal B3 and downstream terminal C; when terminal B3 serves as the execution subject of the near-domain communication control method, the upstream relay terminal includes first-level relay terminal A, terminal B1 and terminal B2, the downstream terminal includes downstream terminal C.

Further, terminal B1 establishes a first non-3GPP session through a first non-3GPP access connection established with N3IWF, terminal B2 establishes a second non-3GPP session through a second non-3GPP access connection established with N3IWF, and terminal B3 establishes a second non-3GPP session through a second non-3GPP access connection established with N3IWF. The established third non-3GPP access connection establishes a third non-3GPP session, and the downstream terminal C establishes a fourth non-3GPP session through the fourth non-3GPP access connection established with the N3IWF to implement user plane sessions between non-level one terminals. of independence. The number of non-3GPP access connections and non-3GPP sessions mentioned in the above solution is only an illustration. The number can be more or less. The specific number is confirmed based on the number of connected non-level one terminals and remote terminals. .

In some embodiments, there are one or more downstream terminals, and the terminals respectively perform bypass and transparent transmission processing on the service traffic of multiple downstream terminals.

For example, as shown in Figure 6, when terminal B1 serves as the execution subject of the near-domain communication control method, the downstream terminals include terminal B2, terminal B3 and downstream terminal C. Therefore, terminal B1 controls terminal B2, terminal B3 and downstream terminal C respectively. The business traffic of terminal C is bypassed and transparently transmitted; when terminal B2 serves as the execution subject of the near-domain communication control method, the downstream terminals include terminal B3 and downstream terminal C, so terminal B2 transmits the business traffic of terminal B3 and downstream terminal C respectively. Perform bypass transparent transmission processing; when terminal B3 serves as the execution subject of the near-domain communication control method, the downstream terminals include downstream terminal C, so terminal B3 performs bypass transparent transmission processing on the service traffic of downstream terminal C.

On the basis of any of the above embodiments, a traffic statistics method is also provided. Please refer to Figure 7. Figure 7 is a flow chart of a traffic statistics method according to an embodiment of the present disclosure. The traffic statistics method can be performed by a UPF network element. Specific implementation. It should be understood that this method can also be specifically executed by other devices, and this embodiment does not limit the execution subject to which this method is applicable.

The following uses the UPF network element as the specific execution subject to introduce in detail the traffic statistics method proposed in the embodiment of the present disclosure.

As shown in Figure 7, in an exemplary embodiment, the traffic statistics method includes at least step S710 to step S720, which are described in detail as follows:

Step S710, collect statistics on the traffic recorded by the session anchor point corresponding to the first non-3GPP session, and confirm the service traffic usage corresponding to the terminal;

Step S720: Statistics are performed on the traffic recorded in the session anchor point corresponding to the second non-3GPP session, and the corresponding service traffic usage of the downstream terminal is confirmed.

As shown in Figure 3, the UPF network element of each terminal serves as the session anchor point for the corresponding session of each terminal to collect statistics on the service traffic of each terminal and obtain the traffic usage of each terminal itself.

For example, in Figure 3, the service traffic usage of terminal B is the traffic recorded by the session anchor UPF network element corresponding to the first non-3GPP session, and the service traffic usage of downstream terminal C is the session anchor UPF network element corresponding to the second non-3GPP session. Recorded traffic.

In some embodiments, the upstream relay terminal is a first-level relay terminal, and the first-level relay terminal establishes an NR session with the base station; the method also includes: obtaining the total traffic recorded by the session anchor point corresponding to the NR session; corresponding to the total traffic according to Eliminate all traffic whose destination address is N3IWF; confirm the corresponding business traffic usage of the upstream relay terminal based on the elimination results.

Among them, since the session user plane of the first-level relay terminal includes the session user plane of all non-level one terminals, the service traffic of the first-level relay terminal is equal to the session traffic of the first-level relay terminal minus the session traffic of all its subordinate terminals. Session traffic, that is, packet traffic whose destination address is the N3IWF address. If the UPF network element of the first-level relay terminal cannot obtain the N3IWF information of the downstream terminal, it will traverse all recorded N3IWF addresses to eliminate the traffic with the current address of N3IWF, and confirm the traffic usage corresponding to the upstream relay terminal based on the elimination results.

By independently establishing the session user planes of terminals at each level, each terminal can establish a non-3GPP session that only carries its own business traffic, and the business traffic of downstream terminals is only bypassed and transparently transmitted. This can be used for multi-level relay near-term communication. Domain communication realizes the security isolation of business traffic of different terminals, and can directly perform traceability and billing based on the business traffic recorded by the UPF network element of each terminal session anchor point.

A specific application scenario of the embodiment of the present disclosure is described in detail below:

Referring to Figure 8, it is assumed that the N3IWF corresponding to each non-level 1 terminal is the same. Step 1. Terminal B (the identity of the remote terminal at this time) initiates the direct discovery process and selects a first-level relay terminal A; Step 2. Terminal B establishes a connection with terminal A, and the first-level relay terminal A’s relay The service rules take effect, that is, the service traffic of terminal B will be processed uniformly with the service traffic of the first-level relay terminal A, and carried in the session of the first-level relay terminal A; Step 3. The first-level relay terminal A performs the DHCP server function , assign an IP address to terminal B; Step 4. Terminal B and N3IWF initiate the signaling interaction of the IPsec tunnel through the IKE process and initiate a NAS message to its 5G core network for registration. When the IPsec tunnel is established, terminal B establishes its via The first non-3GPP session of the first-level relay terminal A; Step 5. Similarly, the remote terminal C initiates the direct discovery process and selects a relay terminal B; Step 6. The remote terminal C establishes a connection with the relay terminal B ; Step 7. Relay terminal B performs the DHCP server function and allocates an IP address to remote terminal C; Step 8. Remote terminal C and N3IWF initiate signaling interaction of the IPsec tunnel through the IKE process and initiates it to its 5G core network NAS message is registered. When the IPsec tunnel is established, remote terminal C establishes its second non-3GPP session via relay terminal B and primary relay terminal A; Step 9. The relay service rules of relay terminal B take effect. That is, bypass transparent transmission processing is implemented for the service traffic of remote terminal C, and only the service traffic of relay terminal B is carried in the first non-3GPP session. Step 10: Each terminal uses its own service and provides services according to the above connection relationship and processing rules. Relay services and divert traffic; Step 11. The session anchor UPF of each terminal identifies and differentiates the traffic, and generates each terminal's own business bill. Among them, the UPF of the first-level relay terminal C eliminates the target from the session traffic. Traffic whose address is the N3IWF address.

In the near-domain communication control method provided by this disclosure, the terminal establishes the first non-3GPP session through the first non-3GPP access connection established with the N3IWF, establishes a connection with the downstream terminal, and performs bypass transparent transmission processing on the downstream terminal's business traffic. So that the downstream terminal establishes a second non-3GPP session through the second non-3GPP access connection established with the N3IWF. The first non-3GPP session is used to carry the service traffic initiated and encapsulated by the terminal, and the second non-3GPP session is used to carry the service traffic initiated and encapsulated by the downstream terminal. And encapsulated business traffic, so that the session user planes of terminals at all levels except the first-level relay terminal are independent, and there is no nesting relationship. Except for the first-level relay terminal, each terminal is established to only carry its own business. Non-3GPP sessions of traffic, and the business traffic of downstream terminals is only bypassed and transparently transmitted. This can realize the security isolation of business traffic of different terminals for the near-domain communication of multi-level relays, and facilitate the traceability and billing of business traffic by each terminal. .

Figure 9 is a block diagram of a near-domain communication control device illustrating an embodiment of the present disclosure. It is applied to a terminal. The terminal is indirectly connected to the base station through an upstream relay terminal. The upstream relay terminal includes at least one level one relay terminal. The relay terminal is connected to the base station through the new air interface NR, as shown in Figure 9. The device includes:

The connection establishment device 910 is configured to establish a first non-3GPP 3GPP session of the terminal if it detects that the connection is successfully established with the upstream relay terminal. The first non-3GPP session passes the non-3GPP session corresponding to the terminal. The first non-3GPP access connection established by the partner program interworking function N3IWF is established; among them, the first non-3GPP session carries the service traffic initiated and encapsulated by the terminal;

The bypass transparent transmission device 920 is configured to establish a connection with the downstream terminal, perform bypass transparent transmission processing on the downstream terminal's business traffic, and forward the downstream terminal's business traffic through the connection with the upstream relay terminal, so that the downstream terminal passes through the downstream terminal. The corresponding second non-3GPP access connection established by the N3IWF establishes a second non-3GPP session; wherein the second non-3GPP session carries service traffic initiated and encapsulated by the downstream terminal.

In one embodiment of the present disclosure, the terminal is a remote terminal; the connection establishment device 910 may include:

A candidate upstream relay terminal acquisition unit configured to acquire a set of accessible candidate upstream relay terminals;

The upstream relay terminal confirmation unit is configured to confirm the upstream relay terminal to be connected based on the information of each candidate upstream relay terminal in the candidate upstream relay terminal set;

The connection unit is configured to initiate a connection request to the upstream relay terminal, so that the upstream relay terminal establishes a connection with the terminal according to the connection request.

In one embodiment of the present disclosure, the connection unit may include:

A connection request generating unit configured to generate a connection request based on terminal information corresponding to the terminal;

The Internet protocol address acquisition unit is configured to send a connection request to the upstream relay terminal, so that the upstream relay terminal verifies the terminal information corresponding to the terminal in the connection request, and allocates the Internet protocol address corresponding to the terminal after passing the verification;

A connection establishment unit configured to establish a connection with the upstream relay terminal according to the Internet protocol address.

In one embodiment of the present disclosure, the terminal is a remote terminal; the connection establishment device 910 may include:

The first data transmission tunnel establishment unit is configured to generate a first Internet key exchange protocol IKE packet according to the terminal information corresponding to the terminal, and send the first IKE packet to the upstream relay terminal, so that the upstream relay terminal transmits the first IKE packet Forward to the N3IWF corresponding to the terminal, so that after the N3IWF corresponding to the terminal passes the verification of the first IKE packet, a first data transmission tunnel based on the Internet Protocol Security Network Protocol IPSec is established between the N3IWF corresponding to the terminal and the terminal;

The first non-3GPP access connection establishment unit is configured to establish the first non-3GPP access connection via the upstream relay terminal through the N3IWF corresponding to the terminal according to the first data transmission tunnel;

The first non-3GPP session establishment unit is configured to establish the first non-3GPP session of the terminal according to the first non-3GPP access connection.

In one embodiment of the present disclosure, the bypass transparent transmission device 920 may include:

a packet receiving unit configured to receive data packets sent by the downstream terminal;

The bypass transparent transmission unit is configured to forward the data packets sent by the downstream terminal to the upstream relay terminal in bypass transparent transmission, so that the upstream relay terminal forwards the data packets to the N3IWF corresponding to the downstream terminal.

In one embodiment of the present disclosure, the data packet includes a second IKE packet, and the packet receiving unit is further configured to:

Receive the second IKE packet sent by the downstream terminal. The second IKE packet is generated based on the terminal information corresponding to the downstream terminal;

The bypass transparent transmission unit is also configured as:

Forward the second IKE packet to the upstream relay terminal in bypass transparent transmission, so that the upstream relay terminal forwards the second IKE packet to the N3IWF corresponding to the downstream terminal, so that after the N3IWF corresponding to the downstream terminal passes the verification of the second IKE packet, A second data transmission tunnel based on IPSec is established between the N3IWF corresponding to the downstream terminal and the downstream terminal, so that the downstream terminal establishes a second non-3GPP link between the terminal and the upstream relay terminal through the N3IWF corresponding to the downstream terminal according to the second data transmission tunnel. Access connection to establish a second non-3GPP session according to the second non-3GPP access connection, wherein the terminal becomes a relay terminal.

In one embodiment of the present disclosure, there are one or more terminals, the plurality of terminals are connected in sequence, and at least one terminal among the plurality of terminals is connected to a first-level relay terminal.

In one embodiment of the present disclosure, there are one or more downstream terminals, and the terminals respectively perform bypass and transparent transmission processing on the service traffic of the multiple downstream terminals.

It should be noted that the near-field communication control device provided by the above-mentioned embodiments and the near-field communication control method provided by the above-mentioned embodiments belong to the same concept, and the specific manner in which each module and unit performs operations has been described in the method embodiment. It is described in detail and will not be repeated here. In practical applications of the near-field communication control device provided by the above embodiments, the above function allocation can be completed by different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all the above descriptions. or some functions, which are not restricted here.

Figure 10 is a block diagram of a traffic statistics device according to an embodiment of the present disclosure. The terminal is indirectly connected to the base station through the first-level relay terminal. The first-level relay terminal is connected to the base station through the new air interface NR. The terminal is established through the N3IWF corresponding to the terminal. The first non-3GPP access connection establishes the first non-3GPP session. The terminal connects to the downstream terminal. The downstream terminal establishes the second non-3GPP session through the second non-3GPP access connection established by the N3IWF corresponding to the downstream terminal. The first non-3GPP session is established. The session carries the service traffic initiated and encapsulated by the terminal, and the second non-3GPP session carries the service traffic initiated and encapsulated by the downstream terminal. The device includes:

The first confirmation device 1010 is configured to collect statistics on the traffic recorded by the session anchor point corresponding to the first non-3GPP session, and confirm the service traffic usage corresponding to the terminal;

The second confirmation device 1020 is configured to collect statistics on the traffic recorded in the session anchor point corresponding to the second non-3GPP session, and confirm the service traffic usage corresponding to the downstream terminal.

In one embodiment of the present disclosure, the upstream relay terminal is a first-level relay terminal, and an NR session is established between the first-level relay terminal and the base station; the traffic statistics device also includes:

The total traffic confirmation unit is configured to obtain the total business traffic recorded by the session anchor point corresponding to the NR session;

The elimination unit is configured to eliminate the traffic whose current address is N3IWF based on the target address corresponding to the total business traffic;

The upstream relay terminal traffic confirmation unit is configured to confirm the service traffic usage corresponding to the upstream relay terminal based on the elimination results.

It should be noted that the traffic statistics device provided by the above embodiments and the traffic statistics method provided by the above embodiments belong to the same concept, and the specific manner in which each module and unit performs operations has been described in detail in the method embodiments. No further details will be given. In practical applications of the traffic statistics device provided by the above embodiments, the above function allocation can be completed by different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. , there is no restriction on this.

FIG. 11 shows a schematic structural diagram of a computer system suitable for implementing an electronic device according to an embodiment of the present disclosure.

It should be noted that the computer system 1100 of the electronic device shown in Figure 11 is only an example, and should not bring any limitations to the functions and scope of use of the embodiments of the present disclosure.

As shown in Figure 11, electronic device 1100 is embodied in the form of a general computing device. The components of the electronic device 1100 may include, but are not limited to: the above-mentioned at least one processing unit 1110, the above-mentioned at least one storage unit 1120, a bus 1130 connecting different system components (including the storage unit 1120 and the processing unit 1110), and the display unit 1140.

Wherein, the storage unit stores program code, and the program code can be executed by the processing unit 1110, so that the processing unit 1110 performs the steps according to various exemplary embodiments of the present disclosure described in the above-mentioned "Example Method" section of this specification.

The storage unit 1120 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 1121 and/or a cache storage unit 1122, and may further include a read-only storage unit (ROM) 1123.

Storage unit 1120 may also include a program/utility 1124 having a set of (at least one) program modules 1125 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, Each of these examples, or some combination, may include the implementation of a network environment.

Bus 1130 may be a local area representing one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, a graphics acceleration port, a processing unit, or using any of a variety of bus structures. bus.

Electronic device 1100 may also communicate with one or more external devices 1170 (e.g., keyboard, pointing device, Bluetooth device, etc.), may also communicate with one or more devices that enable a user to interact with electronic device 1100, and/or with Any device (eg, router, modem, etc.) that enables the electronic device 1100 to communicate with one or more other computing devices. This communication may occur through an input/output (I/O) interface 1150. Furthermore, the electronic device 1100 may also communicate with one or more networks (eg, a local area network (LAN), a wide area network (WAN), and/or a public network, such as the Internet) through the network adapter 1160 . As shown, network adapter 1160 communicates with other modules of electronic device 1100 via bus 1130 . It should be understood that, although not shown in the figures, other hardware and/or application modules may be used in conjunction with electronic device 1100, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tapes drives and data backup storage systems, etc.

In particular, according to embodiments of the present disclosure, the process described above with reference to the flowchart may be implemented as a computer application program. For example, embodiments of the present disclosure include a computer program product including a computer program carried on a computer-readable medium, the computer program comprising a computer program for performing the method illustrated in the flowchart. When the computer program is executed by the processing unit 1110, various functions defined in the system of the present disclosure are performed.

It should be noted that the computer-readable medium shown in the embodiments of the present disclosure may be a computer-readable signal medium or a computer-readable storage medium, or any combination of the above two. The computer-readable storage medium may be, for example, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples of computer readable storage media may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard drive, random access memory (RAM), read only memory (ROM), removable Programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), flash memory, optical fiber, portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM), optical storage device, magnetic storage device, or any of the above suitable The combination. In this disclosure, a computer-readable storage medium may be any tangible medium that contains or stores a program for use by or in connection with an instruction execution system, apparatus, or device. In this disclosure, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying a computer-readable computer program therein. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can initiate, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device . Computer programs embodied on computer-readable media may be transmitted using any suitable medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

The units involved in the embodiments of the present disclosure can be implemented in the form of application programs or in the form of hardware. The described units can also be provided in the processor. Among them, the names of these units do not constitute a limitation on the unit itself under certain circumstances.

Another aspect of the present disclosure also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the previous near-field communication control method or traffic statistics method is implemented. The computer-readable storage medium may be included in the electronic device described in the above embodiments, or may exist separately without being assembled into the electronic device.

Another aspect of the present disclosure also provides a computer program product or computer program including computer instructions stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the near-field communication control method or the traffic statistics method provided in the above embodiments.

The above contents are only preferred exemplary embodiments of the present disclosure and are not intended to limit the implementation of the present disclosure. Those of ordinary skill in the art can easily make corresponding modifications or modifications based on the main concept and spirit of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope required by the claims.

Claims (12)

1. A control method for near-domain communication, applied to a terminal, wherein the terminal is indirectly connected to a base station through an upstream relay terminal, and the upstream relay terminal includes at least one first-level relay terminal, and the first-level relay terminal Connecting to the base station through the new air interface NR, the method includes:

   If it is detected that the connection with the upstream relay terminal is successfully established, a first non-3rd generation partner plan 3GPP session of the terminal is established, and the first non-3GPP session passes through the non-3rd generation partner corresponding to the terminal. The first non-3GPP access connection established by the planned interworking function N3IWF is established; wherein the first non-3GPP session carries the service traffic initiated and encapsulated by the terminal;

   Establish a connection with a downstream terminal, perform bypass transparent transmission processing on the business traffic of the downstream terminal, and forward the business traffic of the downstream terminal through the connection with the upstream relay terminal, so that the downstream terminal passes through the connection with the upstream relay terminal. The second non-3GPP access connection established by the N3IWF corresponding to the downstream terminal establishes a second non-3GPP session; wherein the second non-3GPP session carries the service traffic initiated and encapsulated by the downstream terminal.
2. The method according to claim 1, wherein the terminal is a remote terminal; before the first non-3GPP session of the terminal is established if it is detected that the connection with the upstream relay terminal is successfully established, the method Also includes:

   Obtain the set of accessible candidate upstream relay terminals;

   Confirm the upstream relay terminal to be connected according to the information of each candidate upstream relay terminal in the candidate upstream relay terminal set;

   Initiate a connection request to the upstream relay terminal, so that the upstream relay terminal establishes a connection with the terminal according to the connection request.
3. The method according to claim 2, wherein initiating a connection request to the upstream relay terminal so that the upstream relay terminal establishes a connection with the terminal according to the connection request includes:

   Generate a connection request according to the terminal information corresponding to the terminal;

   Send the connection request to the upstream relay terminal, so that the upstream relay terminal verifies the terminal information corresponding to the terminal in the connection request, and allocates the Internet protocol corresponding to the terminal after the verification is passed. address;

   Establish a connection with the upstream relay terminal according to the Internet protocol address.
4. The method according to claim 1, wherein the terminal is a remote terminal; if it is detected that a connection with an upstream relay terminal is successfully established, a first non-3GPP session of the terminal is established, and the first non-3GPP session is established. The 3GPP session is established through the first non-3GPP access connection established by the non-3rd Generation Partnership Project interworking function N3IWF corresponding to the terminal, including:

   Generate a first Internet key exchange protocol IKE packet according to the terminal information corresponding to the terminal, and send the first IKE packet to the upstream relay terminal, so that the upstream relay terminal transmits the first IKE packet Forwarded to the N3IWF corresponding to the terminal, so that after the N3IWF corresponding to the terminal passes the verification of the first IKE packet, an IPSec-based IPSec protocol is established between the N3IWF corresponding to the terminal and the terminal. The first data transmission tunnel;

   Establish a first non-3GPP access connection via the upstream relay terminal through the N3IWF corresponding to the terminal according to the first data transmission tunnel;

   Establishing a first non-3GPP session of the terminal according to the first non-3GPP access connection.
5. The method according to claim 1, wherein the connection with the downstream terminal is established, the business traffic of the downstream terminal is bypassed and transparently transmitted, and the downstream relay terminal is forwarded through the connection with the upstream relay terminal. The service traffic of the terminal, so that the downstream terminal establishes a second non-3GPP session through the second non-3GPP access connection established by the N3IWF corresponding to the downstream terminal, includes:

   Receive the second IKE packet sent by the downstream terminal, where the second IKE packet is generated according to the terminal information corresponding to the downstream terminal;

   Forward the second IKE packet to the upstream relay terminal in bypass transparent transmission, so that the upstream relay terminal forwards the second IKE packet to the N3IWF corresponding to the downstream terminal, so that the downstream terminal After the corresponding N3IWF passes the verification of the second IKE packet, a second data transmission tunnel based on IPSec is established between the N3IWF corresponding to the downstream terminal and the downstream terminal, so that the downstream terminal can pass the verification according to the second data transmission tunnel. The data transmission tunnel establishes a second non-3GPP access connection via the terminal and the upstream relay terminal through the N3IWF corresponding to the downstream terminal, so as to establish a second non-3GPP session according to the second non-3GPP access connection, Wherein, the terminal becomes a relay terminal.
6. The method according to claim 1, wherein the terminal is one or more, a plurality of the terminals are connected in sequence, and at least one terminal among the plurality of terminals is connected to the first-level relay terminal.
7. The method according to claim 1, wherein there are one or more downstream terminals, and the terminals respectively perform bypass and transparent transmission processing on the service traffic of multiple downstream terminals.
8. A traffic statistics method, in which a terminal is indirectly connected to a base station through an upstream relay terminal, the upstream relay terminal includes at least one first-level relay terminal, and the first-level relay terminal is connected to the base station through a new air interface NR, so The terminal establishes a first non-3GPP session through a first non-3GPP access connection established by the N3IWF corresponding to the terminal, the terminal is connected to a downstream terminal, and the downstream terminal establishes a first non-3GPP session through the N3IWF corresponding to the downstream terminal. The second non-3GPP access connection establishes a second non-3GPP session, the first non-3GPP session carries the service traffic initiated and encapsulated by the terminal, and the second non-3GPP session carries the service traffic initiated and encapsulated by the downstream terminal; The methods include:

   Perform statistics on the traffic recorded by the session anchor corresponding to the first non-3GPP session, and confirm the service traffic usage corresponding to the terminal;

   Statistics are performed on the traffic recorded in the session anchor point corresponding to the second non-3GPP session, and the service traffic usage corresponding to the downstream terminal is confirmed.
9. The method according to claim 8, wherein the upstream relay terminal is the first-level relay terminal, and the first-level relay terminal establishes an NR session with the base station; the method further includes:

   Obtain the total traffic recorded by the session anchor point corresponding to the NR session;

   Eliminate the traffic whose current address is N3IWF according to the target address corresponding to the total business traffic;

   Confirm the service traffic usage corresponding to the upstream relay terminal according to the elimination result.
10. A control device for near-domain communication, applied to a terminal, wherein the terminal is indirectly connected to a base station through an upstream relay terminal, and the upstream relay terminal includes at least one first-level relay terminal, and the first-level relay terminal Connected to the base station through the new air interface NR, the device includes:

    A connection establishment device configured to establish a first non-3rd Generation Partnership Project 3GPP session of the terminal if it detects that the connection is successfully established with the upstream relay terminal, and the first non-3GPP session passes the terminal corresponding to the terminal. The first non-3GPP access connection established by the non-3GPP interworking function N3IWF is established; wherein the first non-3GPP session carries the service traffic initiated and encapsulated by the terminal;

    A bypass transparent transmission device configured to establish a connection with a downstream terminal, perform bypass transparent transmission processing on the business traffic of the downstream terminal, and forward the business traffic of the downstream terminal through the connection with the upstream relay terminal, so as to causing the downstream terminal to establish a second non-3GPP session through a second non-3GPP access connection established by the N3IWF corresponding to the downstream terminal; wherein the second non-3GPP session carries business traffic initiated and encapsulated by the downstream terminal .
11. A traffic statistics device, in which the terminal is indirectly connected to the base station through a first-level relay terminal, the first-level relay terminal is connected to the base station through the new air interface NR, and the terminal is connected through the first non-3GPP access established with N3IWF A first non-3GPP session is established. The terminal is connected to a downstream terminal. The downstream terminal establishes a second non-3GPP session through a second non-3GPP access connection established with the N3IWF. The first non-3GPP session carries the information initiated by the terminal. and encapsulated business traffic, the second non-3GPP session carries the business traffic initiated and encapsulated by the downstream terminal; the device includes:

    The first confirmation device is configured to collect statistics on the traffic recorded by the session anchor point corresponding to the first non-3GPP session, and confirm the service traffic usage corresponding to the terminal;

    The second confirmation device is configured to collect statistics on the traffic recorded in the session anchor point corresponding to the second non-3GPP session, and confirm the service traffic usage corresponding to the downstream terminal.
12. A computer-readable storage medium with a computer program stored thereon, wherein when the program is executed by a processor, the control method for near-field communication as claimed in any one of claims 1 to 7 or claims 8 to 7 is implemented. The traffic statistics method described in any one of 9.

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