WO2020098747A1

WO2020098747A1 - Transmission path configuration method and apparatus

Info

Publication number: WO2020098747A1
Application number: PCT/CN2019/118521
Authority: WO
Inventors: 韩锋; 毕皓; 晋英豪; 谭巍
Original assignee: 华为技术有限公司
Priority date: 2018-11-14
Filing date: 2019-11-14
Publication date: 2020-05-22
Also published as: CN111194051A

Abstract

The present application provides a transmission path configuration method and apparatus, relates to the technical field of communications, and is used to meet specific requirements of different types of services. The method comprises: an access network device receiving a session processing request sent by a core network device; the access network device generating transmission path configuration information according to the session processing request, the transmission path configuration information being used to indicate a transmission path for transmitting a target data packet between a terminal and the access network device or between a terminal and another terminal; and the access network device sending the transmission path configuration information to the terminal. The technical solution proposed in the present application is applicable to a configuration process of transmission paths.

Description

Transmission path configuration method and device

This application requires the priority of the Chinese patent application submitted to the State Intellectual Property Office on November 14, 2018, with the application number 201811355728.0 and the application name "Transmission path configuration method and device", the entire content of which is incorporated by reference in this application in.

Technical field

The present application relates to the field of communication technology, and in particular, to a method and device for configuring a transmission path.

Background technique

The development of wireless communication technology is changing with each passing day, and the future wireless communication business will be ever-changing and different in form. The fifth generation (5th Generation, 5G) wireless communication network will face different application scenarios, such as ultra-high-definition video, virtual reality, large-scale Internet of Things, Internet of Vehicles, and so on.

On the one hand, different scenarios have different requirements for network mobility, security, delay, and reliability. For example, services with high-speed mobile characteristics have relatively high network performance indicators such as business continuity and handover delay. High requirements, and machine type communication services (machine type communication, MTC) have higher requirements for the number of service connections, and lower requirements for handover delay and mobility. On the other hand, different transmission paths have different transmission characteristics. For example, the air interface link (uulink) is suitable for low-latency services, the direct link (sidelink) is suitable for services where terminals communicate directly, and the relay (relay) is suitable. For non-frequent data transmission services or services with small data packets. How to flexibly use different transmission paths to efficiently transmit various types of business data, the industry has not yet a suitable solution.

Summary of the invention

The present application provides a transmission path configuration method and device, which are used to meet the specific needs of various types of services.

To achieve the above purpose, this application provides the following technical solutions:

In a first aspect, a method for configuring a transmission path is provided, which includes: an access network device receives a session processing request sent by a core network device; after that, the access network device determines transmission path configuration information according to the session processing request, the transmission path The configuration information is used to indicate the transmission path information used to transmit the target data packet between the terminal and the access network device or other terminals; the access network device sends the transmission path configuration information to the terminal. In this way, the access network device configures the transmission path for transmitting the target data packet to the terminal through the transmission path configuration information, so that the target data packet can be transmitted through the appropriate transmission path, thereby meeting the specific service of the target data packet demand.

In a possible design, the transmission path configuration information includes a first parameter and a second parameter; where the first parameter is used to determine the target data packet, and the second parameter is used to indicate the transmission path information.

In a possible design, the first parameter includes at least one of the following parameters: service quality (QoS) flow identification, logical channel identification, and data radio bearer (DRB) identification , Packet data unit (packet data unit, PDU) session identification, single network slice selection auxiliary information (single network selection selection assistance, S-NSSAI), and network slice set identification.

In a possible design, the transmission path information includes a transmission path type, and the transmission path type includes any one of single-hop, multi-hop, direct link (sidelink), and multiple connections.

In a possible design, the transmission path configuration information further includes: a third parameter, and the third parameter is used to indicate a transmission mode; wherein, the transmission mode includes broadcast, unicast, and multicast. Of any kind.

In a possible design, the access network device sends transmission path configuration information to the terminal, including: the access network device sends a radio resource control (RRC) reconfiguration request message to the terminal. The RRC reconfiguration request message includes the transmission Path configuration information.

In a possible design, the access network device receiving the session processing request sent by the core network device includes: the access network device receiving the PDU session resource establishment request or the PDU session resource modification request sent by the core network device.

In a possible design, the method further includes: if the transmission path type used to transmit the target data packet between the access network device and the terminal is multi-hop, the access network device sends the first routing information to the terminal, the first route The information is used to instruct the terminal to transmit the next hop of the target data packet; the access network device respectively sends corresponding second routing information to at least one intermediate node, and the second routing information is used to instruct the intermediate node to transmit the next hop of the target data packet. Based on this design, the access network device uses the first routing information and the second routing information to specifically configure each hop in the transmission path of the target data packet, so that the target data packet can be transmitted through a suitable transmission path, thereby satisfying The specific needs of the business to which the target data package belongs.

In a second aspect, a method for configuring a transmission path is provided, including: a terminal receives transmission path configuration information, and the transmission path configuration information is used to indicate transmission path information used to transmit a target data packet between the terminal and an access network device or other terminal ; The terminal determines the transmission path for transmitting the target data packet according to the transmission path configuration information. In this way, the access network device configures the transmission path for transmitting the target data packet to the terminal through the transmission path configuration information, so that the target data packet can be transmitted through an appropriate transmission path to meet the specific service of the target data packet demand.

In a possible design, the first parameter includes at least one of the following parameters: QoS flow identification, logical channel identification, DRB identification, PDU session identification, S-NSSAI, and network slice set identification.

In a possible design, the transmission path information includes the transmission path type, and the transmission path type includes any one of single-hop, multi-hop, sidelink, and multiple connections.

In a possible design, the transmission path configuration information further includes: a third parameter, which is used to indicate a transmission mode; wherein, the transmission mode includes any one of broadcast, unicast, and multicast.

In a possible design, the terminal receiving the transmission path configuration information includes: the terminal receives the RRC reconfiguration request message, and the RRC reconfiguration request message includes the transmission path configuration information.

In a possible design, the method further includes: the terminal receives first routing information, and the first routing information is used to instruct the terminal to transmit the next hop of the target data packet. Based on this design, the terminal can send the target data packet to the appropriate next hop to meet the specific needs of the service to which the target data packet belongs.

In a third aspect, an access network device is provided, including: a communication module for receiving a session processing request sent by a core network device; a processing module for generating transmission path configuration information according to the session processing request received by the communication module, The transmission path configuration information is used to indicate the transmission path information used to transmit the target data packet between the terminal and the access network device or other terminals; the communication module is also used to send the transmission path configuration information to the terminal.

In a possible design, the transmission path configuration information includes a first parameter and a second parameter; wherein, the first parameter is used to determine the target data packet, and the second parameter is used to indicate the transmission path information.

In a possible design, the first parameters include: QoS flow identification, logical channel identification, DRB identification, PDU session identification, S-NSSAI, and network slice set identification.

In a possible design, the transmission path information includes a transmission path type, and the transmission path type includes any one of single-hop, multi-hop, sidelink, and multi-connection.

In a possible design, the communication module is configured to send the transmission path configuration information to the terminal, including: sending an RRC reconfiguration request message to the terminal, and the RRC reconfiguration request message includes the transmission path configuration information.

In a possible design, the communication module is configured to receive the session processing request sent by the core network device, including: receiving a PDU session resource establishment request or a PDU session resource modification request sent by the core network device.

In a possible design, the communication module is also used to send first routing information to the terminal if the transmission path type used to transmit the target data packet between the access network device and the terminal is multi-hop, and the first routing information is used to Instruct the terminal to transmit the next hop of the target data packet; respectively send corresponding second routing information to at least one intermediate node, and the second routing information is used to instruct the intermediate node to transmit the next hop of the target data packet.

According to a fourth aspect, an access network device is provided, including: a processor, configured to couple with a memory, read an instruction in the memory, and implement the first aspect or any of the first aspect according to the instruction Possible implementation methods.

According to a fifth aspect, a computer-readable storage medium is provided, in which instructions are stored in the computer-readable storage medium, so that when it runs on an access network device, the access network device can perform any one of the first aspects above The configuration method of the transmission path.

According to a sixth aspect, there is provided a computer program product containing instructions which, when run on an access network device, enable the access network device to perform the transmission path configuration method described in any one of the above-mentioned first aspects.

According to a seventh aspect, a chip system is provided. The chip system includes a processor for supporting an access network device to implement the functions related to the first aspect. In a possible design, the chip system includes a memory for storing necessary program instructions and data of the access network device. The chip system may be composed of chips, or may include chips and other discrete devices.

Wherein, the technical effects brought by any one of the design methods in the third aspect to the seventh aspect can be referred to the technical effects brought by the different design methods in the first aspect, which will not be repeated here.

According to an eighth aspect, a terminal is provided, which includes a communication module for receiving transmission path configuration information, and the transmission path configuration information is used to indicate transmission path information for transmitting a target data packet between the terminal and an access network device or other terminal The processing module is used to determine the transmission path for transmitting the target data packet according to the transmission path configuration information.

In a possible design, the communication module is configured to receive transmission path configuration information, including: receiving an RRC reconfiguration request message, and the RRC reconfiguration request message includes transmission path configuration information.

In a possible design, the communication module is further used to receive the first routing information, and the first routing information is used to instruct the terminal to transmit the next hop of the target data packet.

In a ninth aspect, a terminal is provided, including: a processor, configured to couple with a memory, read an instruction in the memory, and implement the second aspect or any possible implementation of the second aspect according to the instruction The way in the way.

According to a tenth aspect, there is provided a computer-readable storage medium which stores instructions which, when run on a terminal, enable the terminal to execute the transmission path described in any one of the second aspects above Configuration method.

According to an eleventh aspect, there is provided a computer program product containing instructions that, when run on a terminal, enable the terminal to perform the transmission path configuration method described in any one of the above second aspects.

According to a twelfth aspect, a chip system is provided. The chip system includes a processor for supporting a terminal to implement the functions related to the second aspect. In a possible design, the chip system includes a memory for storing necessary program instructions and data of the terminal. The chip system may be composed of chips, or may include chips and other discrete devices.

The technical effects brought by any one of the design methods in the eighth aspect to the twelfth aspect can be referred to the technical effects brought by the different design methods in the second aspect, which will not be repeated here.

According to a thirteenth aspect, a communication system is provided. The communication system includes an access network device and a terminal. The access network device is used to perform the transmission path configuration method described in any one of the above-mentioned first aspects. The terminal is used to perform the transmission path configuration method described in any one of the above-mentioned second aspects.

According to a fourteenth aspect, a method for configuring a transmission path is provided, which includes: a core network device generating transmission path configuration information used to instruct a terminal to access a network device or other terminal to transmit a target data packet Transmission path information; the core network device sends the transmission path configuration information to the terminal through the access network device. Based on the technical solution, due to different transmission characteristics of different transmission paths, the core network device configures the target data packet with an appropriate transmission path to meet the specific needs of the service to which the target data packet belongs.

In a possible design, the core network device sends the transmission path configuration information to the terminal through the access network device, which includes: the core network device sends a session processing request to the access network device, and the session processing request includes the transmission path configuration information.

In a possible design, the above-mentioned session processing request is a PDU session resource establishment request, or a PDU session resource modification request.

According to a fifteenth aspect, a core network device is provided, including: a processing module for generating transmission path configuration information for instructing a terminal to access a network device or other terminal for transmitting a target data packet The transmission path information; the communication module is used to send the transmission path configuration information to the terminal through the access network device.

In a possible design, the communication module, configured to send the transmission path configuration information to the terminal through the access network device, includes sending a session processing request to the access network device, where the session processing request includes the transmission path configuration information.

According to a sixteenth aspect, a core network device is provided, including: a processor for coupling with a memory and reading instructions in the memory, and implementing the fourteenth aspect or the fourteenth aspect as described above according to the instructions Method in any possible implementation of aspects.

According to a seventeenth aspect, there is provided a computer-readable storage medium having instructions stored therein, which when run on a core network device, enables the core network device to perform any one of the fourteenth aspects The configuration method of the transmission path.

According to an eighteenth aspect, there is provided a computer program product containing instructions that, when run on a core network device, enable the core network device to perform the transmission path configuration method described in any one of the fourteenth aspects.

In a nineteenth aspect, a chip system is provided. The chip system includes a processor for supporting a core network device to implement the functions related to the fourteenth aspect. In a possible design, the chip system includes a memory for storing necessary program instructions and data of the core network device. The chip system may be composed of chips, or may include chips and other discrete devices.

Among them, the technical effects brought by any one of the design methods in the fifteenth to nineteenth aspects can be referred to the technical effects brought by the different design methods in the fourteenth aspect, which will not be repeated here.

According to a twentieth aspect, a communication system is provided. The communication system includes a core network device and a terminal. The access network device is used to perform the transmission path configuration method described in any one of the fourteenth aspects. The terminal is used to perform the transmission path configuration method described in any one of the above-mentioned second aspects.

BRIEF DESCRIPTION

Figure 1 is a schematic diagram of uulink;

Figure 2 is a schematic diagram of the IAB network;

Figure 3 is a schematic diagram of sidelink;

Figure 4 is a schematic diagram of dual connection;

5 is a flowchart of a transmission path configuration method provided by an embodiment of the present application;

6 is a flowchart of another transmission path configuration method provided by an embodiment of the present application;

7 is a flowchart of another transmission path configuration method provided by an embodiment of the present application;

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

9 is a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present application;

10 is a schematic structural diagram of an access network device according to an embodiment of this application;

11 is a schematic diagram of a hardware structure of an access network device provided by an embodiment of the present application;

12 is a schematic structural diagram of a core network device according to an embodiment of the present application;

13 is a schematic diagram of a hardware structure of a core network device provided by an embodiment of the present application.

detailed description

The following briefly introduces some concepts involved in the embodiments of the present application.

(1) Single-hop

Single-hop refers to the direct transmission of data between the terminal and the access network device without passing through other nodes.

As shown in FIG. 1, the access network device and the terminal can implement single-hop transmission of data through an air interface link (uulink). It should be noted that the uu interface is also called an air interface or a wireless interface, which is an interface between the terminal and an evolved terrestrial wireless access network (evolved universal terrestrial radio access, E-UTRA), or the terminal and the fifth generation (5th generation, 5G) New radio (NR) radio access (radio access) interface between base stations of a communication network.

(2) Multi-hop

Multi-hop means that the data transmission between the terminal and the access network device needs to be forwarded through one or more intermediate nodes, where the intermediate node may be a relay node or a terminal with a relay function. Multi-hop includes two-hop (two-hop), three-hop (three-hop), four-hop (four-hop) and so on.

In the embodiment of the present application, the access network device and the terminal may use relay technology to realize multi-hop transmission of data. Integrated access and backhaul (IAB) technology is a kind of relay technology. As shown in FIG. 2, in the case of adopting the IAB technology, the communication network includes an IAB node (node) and an IAB host (donor). Among them, IAB-node provides wireless access and wireless backhaul of access services for terminals. IAB-donor provides wireless backhaul to IAB-node and provides the interface between the terminal and the core network.

(3) sidelink

Sidelink can also be called secondary link, edge link, etc. Sidelink can directly transmit wireless data between two terminals without the need for forwarding by the base station. Sidelink can be used in device-to-device (D2D), vehicle to X (V2X) and other fields.

Exemplarily, as shown in FIG. 3, two vehicle user equipments can directly communicate through the sidelink.

It is worth noting that when the source terminal and the destination terminal communicate through sidelink, the source terminal and the destination terminal can communicate directly, or between the source terminal and the destination terminal through one or more data forwarding functions (that is, as a relay) The terminal communicates.

(4) Multi-connection

Multi-connection means that the terminal is connected to multiple access network devices at the same time, and the multiple access network devices may be in the same communication system or different communication systems. Multiple connections include dual-connectivity, or more than two connections. As shown in FIG. 4, taking dual connection as an example, a terminal may be connected to access network device 0 and access network device 1 at the same time.

It should be noted that multi-connection is suitable for services with high data transmission rate requirements or services with high reliability requirements.

(5) Network slicing (NS)

Network slicing is a logical network derived from the virtualization of a physical network. It is a combination of network function (NF) units and resources that ensure that bearer services can meet service level agreement (SLA) requirements. These NFs and resources can be hard isolated (such as physical isolation) or soft isolated (such as logical isolation) according to different needs. Each network slice is logically independent. The network slice may include at least a core network (CN) part, an access network (AN) part, and a transport network (TN) part; or may include any of the CN part, AN part, or TN part Two parts or one part.

(6) S-NSSAI

S-NSSAI is used to indicate network slicing. S-NSSAI includes service type (slice / service type, SST) and slice differentiator (slice differentiator, STD). Among them, SST includes standardized and operator-defined types. STD is optional information to supplement SST to distinguish multiple network slices of the same SST.

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.

In the description of this application, unless otherwise stated, "/" means "or", for example, A / B may mean A or B. The "and / or" in this article is just an association relationship describing the associated objects, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists alone, A and B exist simultaneously, B exists alone These three situations. In addition, "at least one" means one or more, and "multiple" means two or more. The words "first" and "second" do not limit the number and execution order, and the words "first" and "second" are not necessarily different.

The technical solutions provided by the embodiments of the present application may be applied to various communication systems, for example, an NR communication system adopting 5G communication technology, a future evolution system, or a variety of communication fusion systems, etc. The technical solutions provided in this application can be applied to a variety of application scenarios, such as machine-to-machine (M2M), enhanced mobile Internet (enhanced mobile (broadband, eMBB), ultra-high reliability, ultra-low latency communication (ultra- reliable & lowlatency communication (uRLLC) and massive IoT communication (massive machine type communication (mMTC)) and other scenarios.

In the embodiments of the present application, the access network device may be a base station or a base station controller for wireless communication. For example, the base station may include various types of base stations, such as micro base stations (also called small base stations), macro base stations, relay stations, and access points, which are not specifically limited in the embodiments of the present application. In the embodiment of the present application, the base station may be a global mobile communication system (global system for mobile communication, GSM), code division multiple access (code division multiple access, CDMA) base station (base transceiver station, BTS), broadband Base station (node B) in wideband code division multiple access (WCDMA), evolutionary base station (eNodeB B, eNB or e-NodeB) in LTE, Internet of Things (IoT) or narrowband The eNB in the narrowband-internet of things (NB-IoT), the base station in the future 5G mobile communication network or the future evolved public land mobile network (PLMN), this embodiment of the present application does not make this Any restrictions.

The terminal is used to provide users with voice and / or data connectivity services. The terminal may have different names, such as user equipment (UE), access terminal, terminal unit, terminal station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication device, vehicle user Equipment, terminal agent or terminal device, etc. Optionally, the terminal may be a variety of handheld devices with communication functions, vehicle-mounted devices, wearable devices, and computers, which are not limited in this embodiment of the present application. For example, the handheld device may be a smartphone. The vehicle-mounted device may be a vehicle-mounted navigation system. The wearable device may be a smart bracelet. The computer may be a personal digital assistant (PDA) computer, a tablet computer, and a laptop computer.

The 5G wireless communication network will face different application scenarios, such as ultra-high-definition video, virtual reality, large-scale Internet of Things, Internet of Vehicles, etc. Correspondingly, 5G has various service types with QoS requirements. In addition, communication between the terminal and the access network device or between the terminal and the terminal can use various connections, such as single-hop, multi-hop, sidelink, and multi-connection, etc., and different connection transmission characteristics are different. Therefore, the embodiments of the present application provide a technical solution of how to flexibly combine different connections with different service types.

FIG. 5 is a method for configuring a transmission path according to an embodiment of the present application, including the following steps:

S101. The access network device receives the session processing request sent by the core network device.

Optionally, the session processing request may be a packet data unit (packet data unit, PDU) session resource establishment request, or a PDU session resource modification request.

The session processing request includes at least one of the following parameters: S-NSSAI, PDU session ID, and QoS flow ID.

Optionally, when the session processing request includes the identifier of the QoS flow, the session processing request may further include the QoS parameters of the QoS flow indicated by the identifier of the QoS flow. It should be noted that the QoS parameters of the QoS flow may include: resource type (such as guaranteed bit rate, delayed emergency guaranteed bit rate, or non-guaranteed bit rate, etc.), priority, packet delay budget, packet loss rate, average window, And the maximum data burst (maximum data burst volume) and so on. If the resource type of the QoS flow is the guaranteed bit rate, the QoS parameters also include the guaranteed flow bit rate (GFBR) and the maximum flow bit rate (MFBR).

Exemplarily, the core network device is an access management function (access management function, AMF) network element. Taking the core network device as the AMF network element as an example, the AMF network element sends the session processing request to the access network device in the manner of next generation application protocol (NGAP) signaling.

It should be noted that, when the access network device completes the corresponding session processing according to the session processing request, the access network device may send a session processing response to the core network device.

S102. The access network device generates transmission path configuration information according to the session processing request.

Wherein, the transmission path configuration information is used to indicate transmission path information for transmitting the target data packet between the terminal and the access network device or other terminals. The target data packet may be a data packet of a specific network slice, or a data packet of a specific PDU session, or a data packet carried by a specific DRB, or a data packet of a specific QoS flow, or a specific logical channel Packet.

Optionally, the transmission path configuration information includes: a first parameter and a second parameter.

The first parameter is used to determine the target data packet. Optionally, the first parameter is at least one of the following parameters: QoS flow identifier, logical channel identifier, DRB identifier, PDU session identifier, S-NSSAI, and network slice set (NS set) identifier. The network slice set identifier is used to indicate a network slice set, and the network slice set includes at least one network slice.

In the embodiment of the present application, if the first parameter is the identifier of the QoS flow, the target data packet is the data packet of the QoS flow indicated by the identifier of the QoS flow. If the first parameter is a logical channel identifier, the target data packet is the data packet carried by the logical channel indicated by the logical channel identifier. If the first parameter is a DRB identifier, the target data packet is the data packet carried by the DRB indicated by the DRB identifier. If the first parameter is a PDU session identifier, the target data packet is the data packet of the PDU session indicated by the PDU session identifier. If the first parameter is S-NSSAI, the target data packet is the data packet of the network slice indicated by the S-NSSAI. If the first parameter is a network slice set identifier, the target data packet is a data packet of any network slice in the network slice set indicated by the network slice set identifier.

The second parameter is used to indicate transmission path information. The transmission path information may be the transmission path type. Optionally, the transmission path type includes any one of single-hop, multi-hop, sidelink, and multi-connection.

It should be noted that if the transmission path type is multi-hop, the second parameter may be used to specifically indicate the number of multi-hop hops, that is, to indicate that the transmission path is three hops, or four hops, or five hops. If the transmission path type is multi-connection, the second parameter can be used to specifically indicate the number of connections of the multi-connection, that is to say, the transmission path is dual connection, or triple connection, etc.

As an implementation manner, the second parameter may indicate the transmission path type in a direct manner. Exemplarily, the second parameter is represented by multiple bits. For example, the second parameter is represented by two bits. When the value of these two bits is 00, the second parameter is used to indicate that the transmission path type is single-hop; when the value of these two bits is 01 , The second parameter is used to indicate that the transmission path type is multi-hop.

As another implementation manner, the second parameter may indicate the transmission path type in an indirect manner. For example, if the second parameter includes the cell identifier of at least one relay node, the second parameter is used to indicate that the transmission path type is relay. The cell identifier of the relay node included in the second parameter is used to indicate the relay node transmitting the target data packet. Exemplarily, the above cell identifier may be a physical cell identifier (PCI) or a network cell global identifier (NCGI). It should be understood that, when the second parameter includes the cell identifier of the relay node in the transmission path or the information of the terminal acting as the relay, the transmission path information indicated by the second parameter is a specific transmission path, that is, the target data packet from the terminal to the receiver The specific transmission path that the network access device passes through. For another example, if the second parameter includes information about the destination terminal of the target data packet, or further includes information about the terminal acting as a relay in the transmission path, the second parameter is used to indicate that the transmission path type is sidelink. Among them, the information of the terminal includes at least one of the following: the terminal's identification, the terminal's internet protocol (IP) address, and the terminal's media access control (MAC) address.

Further, the transmission path configuration information is not limited to include the first parameter and the second parameter, but may also include other parameters, such as the third parameter. The third parameter is used to indicate the transmission mode of the target data packet, and the transmission mode includes any one of multicast, broadcast, and unicast. Optionally, when the transmission mode indicated by the third parameter included in the transmission path configuration information is multicast, the transmission path configuration information further includes a multicast address.

In the embodiment of the present application, the specific implementation manner of step S102 may include at least one of the following:

Method 1: The access network device uses the S-NSSAI carried in the session processing request as the first parameter in the transmission path configuration information; and determines the transmission of the target data packet according to the first preset rule and the S-NSSAI carried in the session processing request Path information, thereby determining the second parameter in the transmission path configuration information. It should be noted that in the first way, the target data packet is the data packet of the network slice indicated by the S-NSSAI carried in the session processing request.

It can be understood that, if the first parameter in the transmission path configuration information is S-NSSAI, then for all PDU sessions included in the network slice indicated by the S-NSSAI, the data packets of these PDU sessions all use the transmission path configuration information To the configured transmission path.

Optionally, taking the transmission path information as the transmission path type as an example, the first preset rule may be: determine the transmission path type of the target data packet according to the type of network slice indicated by S-NSSAI. For example, when the type of the network slice indicated by S-NSSAI is V2X, it can be determined that the transmission path type of the target data packet is sidelink. For another example, when the type of the network slice indicated by S-NSSAI is eMBB, it can be determined that the transmission path type of the target data packet is single-hop. For another example, when the type of the network slice indicated by S-NSSAI is MTC, it can be determined that the transmission path type of the target data packet is multi-hop.

Or, taking the transmission path information as the transmission path type as an example, the first preset rule may also be: determining the transmission path information of the target data packet according to the correspondence between the S-NSSAI and the transmission path type. Exemplarily, for the correspondence between S-NSSAI and transmission path types, refer to Table 1. An example is described with reference to Table 1. For example, if the session processing request carries S-NSSAI # 4, the first parameter in the transmission path configuration information generated by the access network device is S-NSSAI # 4, and the transmission path indicated by the second parameter The information is that the transmission path type is sidelink. For another example, if the session processing request carries S-NSSAI # 2, the first parameter in the transmission path configuration information generated by the access network device is S-NSSAI # 2, and the transmission path information indicated by the second parameter is the transmission path type Jump more.

Table I

S-NSSAIS-NSSAI	传输路径类型Transmission path type
S-NSSAI#1S-NSSAI # 1	单跳Single hop
S-NSSAI#2S-NSSAI # 2	多跳Multi-hop
S-NSSAI#3S-NSSAI # 3	多连接Multi-connection
S-NSSAI#4S-NSSAI # 4	sidelinksidelink
……...	……...

Further, when the transmission path configuration information further includes the third parameter, the access network device determines the transmission mode of the target data packet according to the correspondence between the S-NSSAI and the transmission mode, thereby determining the third parameter in the transmission path configuration information. Exemplarily, for the correspondence between S-NSSAI and transmission mode, refer to Table 2. An example is described with reference to Table 2. For example, if the session processing request carries S-NSSAI # 4, the transmission method indicated by the third parameter in the transmission path configuration information generated by the access network device is multicast.

Table II

S-NSSAIS-NSSAI	传输方式transfer method
S-NSSAI#1S-NSSAI # 1	组播Multicast
S-NSSAI#2S-NSSAI # 2	广播broadcast
S-NSSAI#3S-NSSAI # 3	单播Unicast
S-NSSAI#4S-NSSAI # 4	组播Multicast
……...	……...

It should be noted that, if the session processing request carries multiple S-NSSAIs, the access network device can generate corresponding transmission path configuration information for one or more S-NSSAIs carried in the session processing request in the above manner.

Method 2: Based on the correspondence between the S-NSSAI and the network slice set identifier, the access network device first determines the network slice set identifier corresponding to the S-NSSAI carried in the session processing request, and uses the network slice set identifier as the transmission path configuration information. The first parameter of the access network device determines the transmission path information of the target data packet according to the second preset rule and the network slice set identifier corresponding to the S-NSSAI carried in the session processing request, thereby determining the second in the transmission path configuration information parameter. It should be noted that in the second way, the target data packet is a data packet of any network slice in the network slice set indicated by the network slice set identifier.

Optionally, taking the transmission path information as the transmission path type as an example, the above second preset rule is: determine the transmission path information of the target data packet according to the correspondence between the network slice set identifier and the transmission path type. Exemplarily, for the correspondence between the network slice set identifier and the transmission path type, refer to Table 3. Taking Table 3 as an example, suppose that the network slice indicated by S-NSSAI # 1 belongs to the first network slice set, and the identifier of the first network slice set is set # 1. If the session processing request carries S-NSSAI # 1, then connect The first parameter in the transmission path configuration information generated by the network access device is set # 1, and the transmission path information indicated by the second parameter is that the transmission path type is multi-hop.

Table 3

网络切片集合标识Network slice collection logo	传输路径类型Transmission path type
set#1set # 1	多跳Multi-hop
Set#2Set # 2	双连接Dual connection
set#3set # 3	单跳Single hop
set#4set # 4	多跳Multi-hop
……...	……...

Further, when the transmission path configuration information includes the third parameter, the access network device determines the target data packet's The transmission mode, so as to determine the third parameter in the transmission path configuration information. Exemplarily, for the correspondence between the network slice set identifier and the transmission mode, refer to Table 4. For example, referring to Table 4, assume that the network slice indicated by S-NSSAI # 2 belongs to the second network slice set, and the identifier of the second network slice set is set # 2. If the session processing request carries S-NSSAI # 2, then connect The first parameter in the transmission path configuration information generated by the network access device is set # 2, and the transmission mode indicated by the third parameter is broadcast.

Table 4

网络切片集合标识Network slice collection logo	传输方式transfer method
set#1set # 1	组播Multicast
set#2set # 2	广播broadcast
set#3set # 3	单播Unicast
set#4set # 4	组播Multicast
……...	……...

It should be noted that a network slice set may include one or more network slices. Therefore, if the session processing request carries M S-NSSAIs, the M S-NSSAIs may correspond to N network slice set identifiers. For each of the N network slice set identifiers, the access network device can generate corresponding transmission path configuration information according to the second mode. Among them, M and N are positive integers, M ≥ N.

Method 3: The access network device uses the PDU session identifier carried in the session processing request as the first parameter in the transmission path configuration information; the access network device determines the target data according to the third preset rule and the PDU session identifier carried in the session processing request The transmission path information of the packet, thereby determining the second parameter in the transmission path configuration information. It should be noted that, in mode three, the target data packet is the data packet of the PDU session indicated by the PDU session identifier carried in the session processing request.

It can be understood that, if the first parameter in the transmission path configuration information is the PDU session identifier, for all DRBs established under the PDU session indicated by the PDU session identifier, the data carried by these DRBs are configured by the transmission path The transmission path configured by the information is transmitted.

Optionally, taking the transmission path information as the transmission path type as an example, the third preset rule is: according to the type of the network slice to which the PDU session belongs, determine the transmission path type of the data packet of the PDU session. Exemplarily, the type of the network slice to which the PDU session belongs is V2X, then the transmission path type of the data packet of the PDU session is sidelink; the type of the network slice to which the PDU session belongs is eMBB, then the transmission path type of the data packet of the PDU session is Single hop.

Or, taking the transmission path information as the transmission path type as an example, the third preset rule may also be: determining the transmission path type of the target data packet according to the correspondence between the PDU session identifier and the transmission path type. Exemplarily, for the correspondence between the PDU session identifier and the transmission path type, refer to Table 5. Taking Table 5 as an example to illustrate Mode 3, if the session processing request carries the PDU session identifier 1, the first parameter in the transmission path configuration information generated by the access network device is the PDU session identifier 1, and the transmission path information indicated by the second parameter The transmission path type is sidelink.

Table 5

PDU会话标识PDU session ID	传输路径类型Transmission path type
PDU会话标识1PDU session ID 1	sidelinksidelink
PDU会话标识2PDU session ID 2	单跳Single hop
PDU会话标识3PDU session ID 3	多跳Multi-hop
PDU会话标识4PDU session ID 4	三跳Triple jump
……...	……...

Further, if the transmission path configuration information includes the third parameter, the access network device may determine the transmission mode corresponding to the target data packet according to the correspondence between the PDU session ID and the transmission mode and the PDU session ID carried in the session processing request, thereby determining The third parameter in the transmission path configuration information. Exemplarily, for the correspondence between the PDU session identifier and the transmission mode, refer to Table 6. An example is described with reference to Table 6. If the session processing request carries the PDU session identifier 2, the transmission mode indicated by the third parameter in the transmission path configuration information generated by the access network device is unicast.

Table 6

PDU会话标识PDU session ID	传输方式transfer method
PDU会话标识1PDU session ID 1	组播Multicast
PDU会话标识2PDU session ID 2	单播Unicast
PDU会话标识3PDU session ID 3	组播Multicast
PDU会话标识4PDU session ID 4	广播broadcast
……...	……...

It should be noted that, if the session processing request carries multiple PDU session identifiers, for each of the multiple PDU session identifiers, the access network device can generate corresponding transmission path configuration information according to method four.

Method four: The access network device uses the identifier of the QoS flow carried in the session processing request as the first parameter in the transmission path configuration information; the access network device determines according to the fourth preset rule and the identifier of the QoS flow carried in the session processing request The transmission path information of the target data packet, thereby determining the second parameter in the transmission path configuration information. It should be noted that, in mode 4, the target data packet is the data packet of the QoS flow indicated by the identifier of the QoS flow carried in the session processing request.

Optionally, taking the transmission path information as the transmission path type as an example, the above fourth preset rule is: according to the QoS parameters of the QoS flow, determine the transmission path type of the data packet of the QoS flow. Exemplarily, according to the QoS parameters of the QoS flow, if it is determined that the QoS flow requires low latency, the transmission path type of the data packet of the QoS flow may be a single hop; The transmission path type of the data packet of the QoS flow may be multi-hop.

Optionally, taking the transmission path information as the transmission path type as an example, the above fourth preset rule is: according to the type of the network slice to which the QoS flow belongs, determine the transmission path type of the data packet of the QoS flow. Exemplarily, the type of the network slice to which the QoS flow belongs is V2X, then the transmission path type of the data packet of the QoS flow is sidelink; the type of the network slice to which the QoS flow belongs is eMBB, then the transmission path type of the data packet of the QoS flow For single hop.

Further, if the transmission path configuration information includes the third parameter, the access network device may determine the transmission mode of the target data packet according to the correspondence between the QoS parameters of the QoS flow and the transmission mode and the identifier of the QoS flow carried in the session processing request, Thereby, the third parameter in the transmission path configuration information is determined. Exemplarily, for the correspondence between the QoS parameters of the QoS flow and the transmission mode, refer to Table 7. Taking Table 7 as an example, if the session processing request carries the identifier 1 of the QoS flow, and the identifier 1 of the QoS flow corresponds to the QoS parameter 2, the transmission method indicated by the third parameter in the transmission path configuration information generated by the access network device is Unicast.

Table 7

QoS流的QoS参数QoS parameters of QoS flow	传输方式transfer method
QoS参数1QoS parameter 1	组播Multicast
QoS参数2QoS parameter 2	单播Unicast
QoS参数3QoS parameter 3	单播Unicast
QoS参数4QoS parameter 4	单播Unicast
……...	……...

Manner 5: Since the access network device is responsible for mapping between the QoS flow and the DRB, the access network device can determine to which DRB the QoS flow indicated by the QoS flow ID is mapped, thereby determining the DRB corresponding to the QoS flow ID Logo. In this case, the access network device may determine the DRB ID corresponding to the QoS flow ID according to the ID of the QoS flow carried in the session processing request, and use the DRB ID corresponding to the ID of the QoS flow as the transmission path configuration information The first parameter of the access network device determines the transmission path information of the target data packet according to the fifth preset rule and the identifier of the DRB corresponding to the QoS flow, thereby determining the second parameter in the transmission path configuration information. It should be noted that, in mode 5, the target data packet is the data packet carried by the DRB indicated by the DRB identifier as the first parameter.

It can be understood that, if the first parameter in the transmission path configuration information is the DRB identifier, then for all QoS flows mapped to the DRB indicated by the DRB identifier, the data packets of these QoS flows are transmitted using the transmission path configuration information. Path to transmit.

Optionally, the fifth preset rule is: determine the transmission path information of the data packet carried by the DRB according to the QoS parameter of the DRB. Exemplarily, taking the transmission path information as the transmission path type as an example, according to the QoS parameters of the DRB, if it is determined that the data packet carried by the DRB requires low latency, the transmission path type of the data packet carried by the DRB is single hop .

Exemplarily, the QoS parameters of the DRB are determined by the QoS parameters mapped to the QoS flow of the DRB; or, the QoS parameters of the DRB are configured by the access network device, which is not limited in this embodiment of the present application.

Further, if the transmission path configuration information further includes the third parameter, the access network device may determine the transmission mode of the target data packet according to the correspondence between the DRB QoS parameter and the transmission mode and the DRB identifier as the first parameter, thereby determining The third parameter in the transmission path configuration information. Exemplarily, for the correspondence between DRB QoS parameters and transmission modes, refer to Table 8. Taking Table 8 as an example, if the QoS parameter of the DRB indicated by the DRB identifier as the first parameter is QoS parameter 3, the transmission method indicated by the third parameter in the transmission path configuration information generated by the access network device is unicast .

Table 8

DRB的QoS参数QoS parameters of DRB	传输方式transfer method
QoS参数1QoS parameter 1	组播Multicast
QoS参数2QoS parameter 2	单播Unicast
QoS参数3QoS parameter 3	单播Unicast
QoS参数4QoS parameter 4	单播Unicast
……...	……...

It should be noted that multiple QoS flows may be mapped to the same DRB or may be mapped to different DRBs. Therefore, if the session processing request carries identifiers of M QoS flows, the identifiers of the M QoS flows may correspond to N DRB identifiers. In this case, for each DRB identifier among the N DRB identifiers, the access network device may generate corresponding transmission path configuration information according to manner 5. Among them, M and N are positive integers, M ≥ N.

In addition, because there is a correspondence between the logical channel ID and the DRB ID, during the process of generating transmission path configuration information, the access network device may also replace the DRB ID as the first parameter with the corresponding logical channel ID. That is, the corresponding logical channel identifier is used as the first parameter in the transmission path configuration information.

It should be noted that the above first to fifth rules may be generated by the access network device itself, or obtained by the access network device from the core network device, or may be operation and maintenance management (operation, administration and maintenance, OAM) The system is pre-configured for the access network device or defined in the standard, which is not limited in this embodiment of the present application.

It should be noted that the correspondence between the above methods one to five, such as the correspondence between S-NSSAI and transmission path types, or the correspondence between S-NSSAI and transmission methods, may be generated by the access network device itself, or The access network device is obtained from the core network device, or is pre-configured by the OAM system for the access network device, or is defined in the standard, which is not limited in this embodiment of the present application.

S103. The access network device sends transmission path configuration information, so that the terminal receives the transmission path configuration information.

As an implementation manner, the access network device sends an RRC reconfiguration request message to the terminal, where the RRC reconfiguration request message includes transmission path configuration information. Among them, the RRC reconfiguration request message is used to request to reconfigure the RRC connection.

It can be understood that, if the access network device generates multiple transmission path configuration information, the RRC reconfiguration request message may simultaneously include the multiple transmission path configuration information.

S104. The terminal determines a transmission path for transmitting the target data packet according to the transmission path configuration information.

For example, if the first parameter in the transmission path configuration information is S-NSSAI # 1 and the transmission path information indicated by the second parameter is the transmission path type is single-hop, the terminal can determine the network slice indicated by S-NSSAI # 1 The transmission path type of the data packet is single hop.

For another example, if the first parameter in the transmission path configuration information is DRB identifier # 1 and the transmission path information indicated by the second parameter is the transmission path type is sidelink, the terminal can determine the data packet carried by the DRB indicated by DRB identifier # 1 The transmission path type is sidelink.

For another example, if the first parameter in the transmission path configuration information is PDU session identifier # 3 and the transmission path information indicated by the second parameter is the transmission path type is multi-hop, the terminal can determine the PDU session indicated by PDU session identifier # 3 The transmission path type of the data packet is multi-hop.

Based on the technical solution shown in FIG. 5, after receiving the session processing request, the access network device generates corresponding transmission path configuration information according to the session processing request, and sends the transmission path configuration information to the terminal. Due to the different transmission characteristics of different transmission paths, the access network device configures the target data packet with an appropriate transmission path to meet the specific needs of the service to which the target data packet belongs.

FIG. 6 is another method for configuring a transmission path provided by an embodiment of the present application, including the following steps:

S201. The core network device generates transmission path configuration information.

In the process of session processing, such as the PDU session resource establishment process or the PDU session resource modification process, the core network device may determine the S-NSSAI, PDU session identifier, and QoS flow identifier involved in the session processing procedure.

Optionally, the core network device may use the S-NSSAI involved in the session processing process as the first parameter of the transmission path configuration information. In the case where the first parameter is S-NSSAI, for the determination method of the second parameter and the third parameter in the transmission path configuration information, reference may be made to the description of method 1 in step S102, and details are not described herein again.

Optionally, the core network device may use the network slice set identifier corresponding to the S-NSSAI involved in the session processing process as the first parameter in the transmission path configuration information. In the case where the first parameter is the network slice set identifier, the determination method of the second parameter and the third parameter in the transmission path configuration information can refer to the description of method 2 in step S102, and details are not described here.

Optionally, the core network device may use the PDU session identifier involved in the session processing process as the first parameter of the transmission path configuration information. In the case where the first parameter is the PDU session identifier, the determination method of the second parameter and the third parameter in the transmission path configuration information can refer to the description of method three in step S102, and details are not described here.

Optionally, the core network device may use the identifier of the QoS flow involved in the session processing flow as the first parameter of the transmission path configuration information. In the case where the first parameter is the identifier of the QoS flow, the determination method of the second parameter and the third parameter in the transmission path configuration information can refer to the description of method 4 in step S102, and details are not described here.

It should be noted that the first rule in the first way, the second rule in the second way, the third rule in the third way, and the fourth rule in the fourth way may be generated by the core network device itself, or may be an operation The maintenance management (operation administration and maintenance, OAM) system is configured in advance for the core network equipment or is defined in the standard, which is not limited in the embodiments of the present application.

It should be noted that the correspondence between the above methods one to four, such as the correspondence between S-NSSAI and transmission path types, or the correspondence between S-NSSAI and transmission methods, may be generated by the core network device itself, or The OAM system is configured in advance for the core network equipment or is defined in the standard, which is not limited in this embodiment of the present application.

S202. The core network device sends a session processing request to the access network device, where the session processing request includes transmission path configuration information.

S203-S204, similar to steps S103-S104, for related description, reference may be made to the embodiment shown in FIG. 5, which will not be repeated here.

Based on the technical solution shown in FIG. 6, the core network device generates transmission path configuration information, and sends the transmission path configuration information to the terminal through the access network device. Due to the different transmission characteristics of different transmission paths, the core network device configures the target data packet with an appropriate transmission path to meet the specific needs of the service to which the target data packet belongs.

Optionally, as shown in FIG. 7, after determining that the transmission path type used to transmit the target data packet between the terminal and the access device or other devices is multi-hop or sidelink, the above transmission path configuration method further includes the following steps:

S301. The access network device obtains the routing table of the target data packet.

Wherein, the routing table includes information of each hop that the target data packet passes between the sending end and the receiving end. That is, the routing table includes information of all intermediate nodes in the transmission path of the target data packet. It should be noted that, in the case of multi-hop transmission, the intermediate node may be a relay node having the function of an access network device or a terminal having a data forwarding function. In the case of sidelink transmission, the intermediate node may be a terminal with data forwarding function, which is used as a relay.

In the embodiment of the present application, the access network device may generate the routing table of the target data packet according to the topology of the communication network. Or, the access network device obtains the routing table of the target data packet from the core network device. Or, the access network device obtains the routing table of the target data packet from the OAM system.

It should be noted that in the IAB network, the IAB node will report the network slice supported by the IAB node to the IAB donor. For example, the IAB node sends report information to the IAB donor. The report information carries the S-NSSAI, and the report information can be carried on the interface. In the establishment request message, or in the interface configuration update message. The above interface refers to the interface between the IAB node and the IAB donor node, similar to the F1 interface between the centralized unit (CU) and the distributed unit (DU). In this way, the IAB donor generates or updates the routing table based on the network slices supported by the IAB node.

S302. The access network device separately sends corresponding second routing information to at least one intermediate node.

The second routing information is used to instruct the intermediate node to transmit the next hop of the target data packet. The second routing information corresponding to the intermediate node is determined by the routing table of the target data packet.

Optionally, the second routing information may include: an identifier of the terminal, a first parameter used to determine the target data packet, and at least one next hop information for downlink transmission and / or at least one next hop information for uplink transmission . The first parameter is the first parameter included in the transmission path configuration information in the foregoing embodiment. It can be understood that the next hop information transmitted in the uplink may be information of an access network device, or information of an intermediate node. The next hop information for downlink transmission may be information of an intermediate node or information of a terminal. The information of the access network device includes at least one of the identification of the access network device, the IP address of the access network device, and the cell identification of the access network device. The information of the terminal includes at least one of the identification of the terminal, the IP address of the terminal, and the MAC address of the terminal.

It can be understood that, if the second routing information includes multiple next hop information for downlink transmission / uplink transmission, when transmitting the target data packet, the intermediate node may select the appropriate next hop from the aspects of QoS, load balancing, etc. .

As shown in Table 9, it is an example of second routing information provided by the embodiment of the present application. Explained with reference to Table 9, for the data packet carried by the DRB indicated by DRB # 1 sent by the access network device to UE1, the intermediate node may send the data packet to IAB node # 2. For the data packet carried by the DRB indicated by DRB # 1 sent by the UE1 to the access network device, the intermediate node may send the data packet to the IAB node # 1.

Table 9

As shown in Table 10, it is another example of the second routing information provided by the embodiment of the present application. In this example, the routing table is used to indicate the routing information of the data packet of the network slice identified by UE2 as S-NSSAI # 3.

Table ten

Further, the second routing information may also include a destination address for uplink transmission and a destination address for downlink transmission. As shown in Table 11, it is an example of second routing information provided by an embodiment of the present application.

Table eleven

In the embodiment of the present application, the second routing information may be carried by an interface establishment message, an interface configuration update message, signaling of PDU session resource establishment, signaling of PDU session resource modification, high-level signaling, and the like.

S303. The access network device sends first routing information to the terminal.

The first routing information is used to instruct the terminal to transmit the next hop of the target data packet. The first routing information is determined according to the routing table of the target data packet.

Optionally, the first routing information includes first parameters used to determine the target data packet and next hop information. The first parameter is the first parameter included in the transmission path configuration information in the foregoing embodiment.

As shown in Table 12, it is an example of first routing information provided by an embodiment of the present application. Explained in conjunction with Table 12, for the data packet of the network slice indicated by S-NSSAI # 3, the terminal transmits the data packet to IAB node # 3.

Table 12

S-NSSAIS-NSSAI	下一跳Next hop
S-NSSAI#3S-NSSAI # 3	IAB node#3IAB node # 3

As an implementation manner, the access network device sends the first routing information to the terminal through the intermediate node.

Exemplarily, taking an intermediate node as a relay node as an example, the access network device sends the first routing information to the relay node, and the relay node forwards the first routing information to the terminal. Optionally, the first routing information is carried by an RRC reconfiguration request message.

Optionally, step S303 is described in conjunction with step S104 or S204, and the first routing information may be sent together with the transmission path configuration information. In this case, the transmission path configuration information contains the first routing information.

Based on the technical solution shown in FIG. 7, the access network device specifically configures each of the transmission paths of the target data packet by sending corresponding second routing information to at least one intermediate node and first routing information to the terminal Hop, so that the target data packet can be transmitted with a suitable transmission path, so as to meet the specific needs of the business to which the target data packet belongs.

The above mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between each network element. It can be understood that each network element, such as an access network device and a terminal, includes a hardware structure and / or a software module corresponding to each function in order to implement the above-mentioned functions. Those skilled in the art should easily realize that, in combination with the exemplary units and algorithm steps described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed by hardware or computer software driven hardware 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 beyond the scope of this application.

The embodiments of the present application may divide the function modules of the access network device and the terminal according to the above method example, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated in one process Module. The above integrated modules may be implemented in the form of hardware or software function modules. It should be noted that the division of the modules in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another division manner. The following uses an example of dividing each function module corresponding to each function as an example:

FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present application. As shown in FIG. 8, the terminal includes: a processing module 801 and a communication module 802. Wherein, the processing module 801 is used to support the terminal to perform step S104 shown in FIG. 5, step S204 shown in FIG. 6, and / or other processes used in the technical solutions described herein. The communication module 802 is used to support the terminal to perform step S103 shown in FIG. 5, step S203 shown in FIG. 6, step S303 shown in FIG. 7, and / or other processes for the technical solutions described herein. All relevant content of each step involved in the above method embodiments can be referred to the function description of the corresponding function module, which will not be repeated here.

9 is a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present application. As shown in FIG. 9, the terminal includes a processor 901 and a communication interface 902. The processor 901 is used to support the terminal to perform step S104 shown in FIG. 5, step S204 shown in FIG. 6, and / or other processes used in the technology described herein. The communication interface 902 is used to support the terminal to perform step S103 shown in FIG. 5, step S203 shown in FIG. 6, step S303 shown in FIG. 7, and / or other processes for the technical solutions described herein. In addition, the terminal may also include a memory 903 and a bus 904.

The processor 901 may be a central processor unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The processor may also be a combination that realizes a computing function, for example, including one or more microprocessor combinations, a combination of a digital signal processor and a microprocessor, and so on.

The communication interface 902 is used to communicate with other devices or communication networks, such as Ethernet, wireless access network (RAN), wireless local area network (wireless local area networks, WLAN), etc.

The memory 903 may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM), or other types of information and instructions that can be stored The dynamic storage device can also be electrically erasable programmable read-only memory (electrically erasable programmable-read-only memory (EEPROM), read-only compact disc (compact disc read-only memory (CD-ROM) or other disc storage, CD storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be used by a computer Access to any other media, but not limited to this. The memory 903 may exist independently, and is connected to the processor 901 through the communication bus 904. The memory 903 may also be integrated with the processor 901. The memory 903 is used to store a software program that executes the solution provided by the embodiment of the present invention, and is controlled and executed by the processor 901.

The bus 904 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, or the like. The bus can be divided into an address bus, a data bus, and a control bus. For ease of representation, only a thick line is used in FIG. 9, but it does not mean that there is only one bus or one type of bus.

Embodiments of the present application also provide a computer-readable storage medium, in which computer instructions are stored; when the computer-readable storage medium runs on a terminal, the terminal is executed as shown in FIG. 5- The configuration method of the transmission path shown in 7.

In the embodiments of the present application, the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers and data centers that can be integrated with the medium. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium, or a semiconductor medium (for example, a solid state disk (SSD)) or the like. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).

An embodiment of the present application further provides a chip system. The chip system includes a processor for supporting a terminal to implement the configuration method of the transmission path shown in FIGS. 5-7. In a possible design, the chip system also includes a memory. The memory is used to store necessary program instructions and data of the terminal. Of course, the memory may not be in the chip system. The chip system may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiments of the present application.

Embodiments of the present application also provide a computer program product containing computer instructions, which, when run on a terminal, enables a computer to execute the transmission path configuration method shown in FIGS. 5-7.

The terminal, the computer storage medium, the chip system, and the computer program product provided in the above embodiments of the present application are all used to perform the transmission path configuration method provided above. Therefore, for the beneficial effects that can be achieved, refer to the above provided The beneficial effects of the method will not be repeated here.

10 is a schematic structural diagram of an access network device according to an embodiment of the present application. As shown in FIG. 10, the access network device includes: a communication module 1001 and a processing module 1002. Among them, the communication module 1001 is used to support the access network device to perform steps S101 and S103 shown in FIG. 5, steps S202 and S203 shown in FIG. 6, steps S302 and S303 shown in FIG. 7, and / or used for the description herein Process of the technical solution. The processing module 1002 is used to support the access network device to perform step S102 shown in FIG. 5, step S301 shown in FIG. 7, and / or other processes for the technical solutions described herein. All relevant content of each step involved in the above method embodiments can be referred to the function description of the corresponding function module, which will not be repeated here.

11 is a schematic diagram of a hardware structure of an access network device provided by an embodiment of the present application. As shown in FIG. 11, the access network device includes: a processor 1101 and a communication interface 1102. The processor 1101 is used to support the access network device to perform step S102 shown in FIG. 5, step S301 shown in FIG. 7, and / or other processes used in the technology described herein. The communication interface 1102 is used to support the access network device to perform steps S101 and S103 shown in FIG. 5, steps S202 and S203 shown in FIG. 6, steps S302 and S303 shown in FIG. 7, and / or used in the technology described herein Other processes of the program. In addition, the access network device may further include a memory 1103 and a bus 1104.

The processor 1101 may be a central processor unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The processor may also be a combination that realizes a computing function, for example, including one or more microprocessor combinations, a combination of a digital signal processor and a microprocessor, and so on.

The communication interface 1102 is used to communicate with other devices or communication networks, such as Ethernet, wireless access network, and wireless local area network.

The memory 1103 may be a read-only memory or other types of static storage devices that can store static information and instructions, a random access memory or other types of dynamic storage devices that can store information and instructions, or electrically erasable programmable read-only Memory, CD-ROM or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store instructions or The desired program code in the form of a data structure and any other medium that can be accessed by a computer, but is not limited thereto. The memory 1103 may exist independently, and is connected to the processor 1101 through the communication bus 1104. The memory 1103 may also be integrated with the processor 1101. The memory 1103 is used to store a software program that executes the solution provided by the embodiment of the present invention, and is controlled and executed by the processor 1101.

The bus 1104 may be a standard bus for interconnecting peripheral components or an extended industry standard structure bus. The bus can be divided into an address bus, a data bus, and a control bus. For ease of representation, only a thick line is used in FIG. 11, but it does not mean that there is only one bus or one type of bus.

An embodiment of the present application also provides a computer-readable storage medium, in which instructions are stored; when the computer-readable storage medium runs on an access network device, the access network device is caused to execute Figure 5-7 shows the transmission path configuration method.

An embodiment of the present application further provides a chip system. The chip system includes a processor for supporting an access network device to implement the transmission path configuration method shown in FIGS. 5-7. In a possible design, the chip system also includes a memory. The memory is used to store necessary program instructions and data of the access network equipment. Of course, the memory may not be in the chip system. The chip system may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiments of the present application.

Embodiments of the present application also provide a computer program product containing computer instructions, which when run on an access network device, enables the computer to execute the transmission path configuration method shown in FIGS. 5-7.

The above-mentioned access network device, computer storage medium, chip system, and computer program product provided in the embodiments of the present application are all used to perform the transmission path configuration method provided above. Therefore, for the beneficial effects that can be achieved, refer to the above The beneficial effects corresponding to the provided method will not be repeated here.

12 is a schematic structural diagram of a core network device according to an embodiment of the present application. As shown in FIG. 12, the core network device includes: a communication module 1201 and a processing module 1202. The communication module 1201 is used to support the core network device to perform step S101 shown in FIG. 5, step S202 shown in FIG. 6, and / or other processes used in the technical solutions described herein. The processing module 1202 is used to support the core network device to perform step S201 shown in FIG. 6 and / or other processes for the technical solution described herein. All relevant content of each step involved in the above method embodiments can be referred to the function description of the corresponding function module, which will not be repeated here.

13 is a schematic diagram of a hardware structure of a core network device provided by an embodiment of the present application. As shown in FIG. 13, the core network device includes: a processor 1301 and a communication interface 1302. The processor 1301 is used to support the core network device to perform step S201 shown in FIG. 6 and / or other processes used in the technology described herein. The communication interface 1302 is used to support the core network device to perform step S101 shown in FIG. 5, step S202 shown in FIG. 6, and / or other processes for the technical solutions described herein. In addition, the core network device may further include a memory 1303 and a bus 1304.

The processor 1301 may be a central processor unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The processor may also be a combination that realizes a computing function, for example, including one or more microprocessor combinations, a combination of a digital signal processor and a microprocessor, and so on.

The communication interface 1302 is used to communicate with other devices or communication networks, such as Ethernet, wireless access network, and wireless local area network.

The memory 1303 may be a read-only memory or other types of static storage devices that can store static information and instructions, a random access memory or other types of dynamic storage devices that can store information and instructions, or electrically erasable programmable read-only Memory, CD-ROM or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store instructions or The desired program code in the form of a data structure and any other medium that can be accessed by a computer, but is not limited thereto. The memory 1303 may exist independently, and is connected to the processor 1301 through the communication bus 1304. The memory 1303 may also be integrated with the processor 1301. The memory 1303 is used to store a software program that executes the solution provided by the embodiment of the present invention, and is controlled and executed by the processor 1301.

The bus 1304 may be a standard bus for interconnecting peripheral components or an extended industry standard structure bus. The bus can be divided into an address bus, a data bus, and a control bus. For ease of representation, only a thick line is used in FIG. 13, but it does not mean that there is only one bus or one type of bus.

Embodiments of the present application also provide a computer-readable storage medium, in which instructions are stored; when the computer-readable storage medium runs on a core network device, the core network device is executed as shown in FIG. 5- The configuration method of the transmission path shown in FIG. 6.

An embodiment of the present application further provides a chip system. The chip system includes a processor for supporting a core network device to implement the transmission path configuration method shown in FIGS. 5-6. In a possible design, the chip system also includes a memory. The memory is used to store necessary program instructions and data of the core network device. Of course, the memory may not be in the chip system. The chip system may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiments of the present application.

Embodiments of the present application also provide a computer program product containing computer instructions, which when run on a core network device, enables a computer to execute the transmission path configuration method shown in FIGS. 5-6.

The core network device, computer storage medium, chip system, and computer program product provided in the above embodiments of the present application are all used to perform the transmission path configuration method provided above. Therefore, for the beneficial effects that can be achieved, refer to the above The beneficial effects corresponding to the provided method will not be repeated here.

Although this application has been described in conjunction with various embodiments herein, in the process of implementing the claimed application, those skilled in the art can understand and understand by looking at the drawings, the disclosure, and the appended claims Other changes to the disclosed embodiments are implemented. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude a plurality. A single processor or other unit may fulfill several functions recited in the claims. Certain measures are recited in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the present application. Accordingly, the specification and drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are deemed to cover any and all modifications, changes, combinations, or equivalents within the scope of the present application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

A transmission path configuration method, characterized in that the method includes:

The access network device receives the session processing request sent by the core network device;

The access network device generates transmission path configuration information according to the session processing request, and the transmission path configuration information is used to indicate a transmission path between the terminal and the access network device or other terminal for transmitting the target data packet information;

The access network device sends the transmission path configuration information to the terminal.
The transmission path configuration method according to claim 1, wherein the transmission path configuration information includes a first parameter and a second parameter; wherein the first parameter is used to determine the target data packet, and the second parameter is used to indicate Transmission path information.
The transmission path configuration method according to claim 2, wherein the first parameter includes at least one of the following parameters: quality of service QoS flow identification, logical channel identification, data radio bearer DRB identification, and packet data Unit PDU session identifier, single network slice selection auxiliary information S-NSSAI, and network slice set identifier.
The transmission path configuration method according to claim 2, wherein the transmission path information includes a transmission path type, and the transmission path type includes single-hop, multi-hop, direct link sidelink, and multiple connections Any kind.
The transmission path configuration method according to any one of claims 2 to 4, wherein the transmission path configuration information further includes: a third parameter, and the third parameter is used to indicate a transmission mode; wherein, the Transmission methods include any of broadcast, unicast, and multicast.
The transmission path configuration method according to any one of claims 1 to 5, wherein the access network device sending transmission path configuration information to the terminal includes:

The access network device sends a radio resource control RRC reconfiguration request message to the terminal, where the RRC reconfiguration request message includes transmission path configuration information.
The method for configuring a transmission path according to any one of claims 1 to 5, wherein the access network device receiving the session processing request sent by the core network device includes:

The access network device receives a PDU session resource establishment request or a PDU session resource modification request sent by the core network device.
The method for configuring a transmission path according to any one of claims 1 to 7, wherein the method further comprises:

If the transmission path type used to transmit the target data packet between the terminal and the access network device is multi-hop, the access network device sends first routing information to the terminal, and the first routing information is used Instruct the terminal to transmit the next hop of the target data packet;

The access network device respectively sends corresponding second routing information to at least one intermediate node, where the second routing information is used to instruct the intermediate node to transmit the next hop of the target data packet.
A transmission path configuration method, characterized in that the method includes:

The terminal receives transmission path configuration information, and the transmission path configuration information is used to indicate transmission path information used to transmit the target data packet between the terminal and the access network device or other terminals;

The terminal determines a transmission path for transmitting the target data packet according to the transmission path configuration information.
The transmission path configuration method according to claim 9, wherein the transmission path configuration information includes a first parameter and a second parameter; wherein the first parameter is used to determine the target data packet, and the second parameter is used to indicate Transmission path information.
The transmission path configuration method according to claim 10, wherein the first parameter includes at least one of the following parameters: quality of service QoS flow identification, logical channel identification, data radio bearer DRB identification, and packet data Unit PDU session identifier, single network slice selection auxiliary information S-NSSAI, and network slice set identifier.
The transmission path configuration method according to claim 10, wherein the transmission path information includes a transmission path type, and the transmission path type includes single-hop, multi-hop, direct link sidelink, and Any kind.
The transmission path configuration method according to any one of claims 10 to 12, wherein the transmission path configuration information further includes: a third parameter, and the third parameter is used to indicate a transmission mode; wherein, the Transmission methods include any of broadcast, unicast, and multicast.
The transmission path configuration method according to any one of claims 9 to 13, wherein the terminal receiving transmission path configuration information includes:

The terminal receives a radio resource control RRC reconfiguration request message, and the RRC reconfiguration request message includes transmission path configuration information.
The transmission path configuration method according to any one of claims 9 to 14, wherein the method further comprises:

The terminal receives first routing information, and the first routing information is used to instruct the terminal to transmit the next hop of the target data packet.
An access network device, characterized in that it includes:

The communication module is used to receive the session processing request sent by the core network device;

The processing module is configured to generate transmission path configuration information according to the session processing request, and the transmission path configuration information is used to indicate transmission path information between the terminal and the access network device or other terminal for transmitting the target data packet ;

The communication module is also used to send the transmission path configuration information to the terminal.
The access network device according to claim 16, wherein the transmission path configuration information includes a first parameter and a second parameter; wherein the first parameter is used to determine the target data packet, and the second parameter is used to indicate transmission Path information.
The access network device according to claim 17, wherein the first parameter includes at least one of the following parameters: quality of service QoS flow identification, logical channel identification, data radio bearer DRB identification, and packet data unit PDU session identifier, single network slice selection auxiliary information S-NSSAI, and network slice set identifier.
The access network device according to claim 17, wherein the transmission path information includes a transmission path type, and the transmission path type includes any of single-hop, multi-hop, direct link sidelink, and multiple connections One kind.
The access network device according to any one of claims 17 to 19, wherein the transmission path configuration information further includes: a third parameter, the third parameter is used to indicate a transmission mode; wherein, the transmission The methods include any of broadcast, unicast, and multicast.
The access network device according to any one of claims 16 to 20, wherein the communication module is configured to send transmission path configuration information to the terminal, including: sending radio resource control RRC reconfiguration to the terminal Configuration request message, the RRC reconfiguration request message includes transmission path configuration information.
The access network device according to any one of claims 16 to 20, wherein the communication module is configured to receive a session processing request sent by a core network device, including: receiving a PDU session sent by the core network device Resource establishment request or PDU session resource modification request.
The access network device according to any one of claims 16 to 22, wherein the communication module is further configured to transmit target data packets between the terminal and the access network device The path type is multi-hop, and the first routing information is sent to the terminal, and the first routing information is used to instruct the terminal to transmit the next hop of the target data packet; the corresponding second routing information is sent to at least one intermediate node, respectively. The second routing information is used to instruct the intermediate node to transmit the next hop of the target data packet.
A terminal is characterized by comprising:

The communication module is configured to receive transmission path configuration information, and the transmission path configuration information is used to indicate transmission path information used to transmit the target data packet between the terminal and the access network device or other terminals;

The processing module is configured to determine a transmission path for transmitting the target data packet according to the transmission path configuration information.
The terminal according to claim 24, wherein the transmission path configuration information includes a first parameter and a second parameter; wherein the first parameter is used to determine the target data packet, and the second parameter is used to indicate the transmission path information.
The terminal according to claim 25, wherein the first parameter includes at least one of the following parameters: quality of service QoS flow identification, logical channel identification, data radio bearer DRB identification, packet data unit PDU session identification , Single network slice selection auxiliary information S-NSSAI, and network slice set identification.
The terminal according to claim 25, wherein the transmission path information includes a transmission path type, and the transmission path type includes any one of single-hop, multi-hop, direct link sidelink, and multiple connections.
The terminal according to any one of claims 25 to 27, wherein the transmission path configuration information further includes: a third parameter, and the third parameter is used to indicate a transmission mode; wherein, the transmission mode includes broadcast , Unicast and multicast.
The terminal according to any one of claims 24 to 28, wherein the communication module is configured to receive transmission path configuration information, including: receiving a radio resource control RRC reconfiguration request message, the RRC reconfiguration request message Including transmission path configuration information.
The terminal according to any one of claims 24 to 29, wherein the communication module is further configured to receive first routing information, and the first routing information is used to instruct the terminal to download a target data packet. Jump.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, and the computer program includes program instructions, which when executed by a processor causes the processor to execute as rights The method according to any one of claims 1 to 15.
A computer program product, characterized in that the computer program product stores program instructions, which when executed by a processor causes the processor to perform the method according to any one of claims 1-15.
A chip, characterized in that the chip includes a processor, and when the processor executes an instruction, the processor is used to execute the method according to any one of claims 1 to 15.