WO2022160303A1 - Quality of service parameter processing method, terminal device, network function entity, and network device - Google Patents

Abstract

The present application relates to a quality of service (QoS) parameter processing method, a terminal device, a network function entity, and a network device. The method comprises: the terminal device accesses a non-terrestrial network (NTN) network using a mapped QoS parameter, the mapped QoS parameter being applicable to the NTN network. By means of embodiments of the present application, a mapping mechanism for the QoS parameter can be optimized.

Description

Quality of service parameter processing method, terminal device, network function entity and network device technical field

The present application relates to the field of communications, and more particularly, to a method for processing quality of service parameters, a terminal device, a network function entity, and a network device.

Background technique

In the non-terrestrial network (Non-Terrestrial Networks, NTN) system, satellite communication is used to provide communication services to terrestrial users. Due to the long communication distance between terminal equipment and satellite or network equipment, the round-trip transmission of signal transmission The time (Round Trip Time, RTT) is much larger than the RTT of the terrestrial communication system. Therefore, the existing parameters for the terrestrial communication network cannot be directly used in the non-terrestrial communication network. Due to the large delay of satellite access, it cannot meet the requirements of Quality of Service (QoS), resulting in the inability of terrestrial users to communicate directly with the satellite network.

SUMMARY OF THE INVENTION

In view of this, embodiments of the present application provide a method for processing quality of service parameters, a terminal device, a network function entity, and a network device, so as to solve at least one of the above technical problems.

An embodiment of the present application provides a method for processing quality of service parameters, which is applied to a terminal device, including: the terminal device uses a mapped QoS parameter to access a non-terrestrial network NTN network, and the mapped QoS parameter is applicable to the non-terrestrial network NTN network.

An embodiment of the present application provides a method for processing quality of service parameters, which is applied to a first network function entity, including: the first network function entity obtains and forwards mapped QoS parameters, where the mapped QoS parameters are applicable to an NTN network.

An embodiment of the present application provides a method for processing quality of service parameters, which is applied to a second network function entity, including: the second network function entity maps QoS parameters of a terminal device to obtain mapped QoS parameters, and the mapped QoS parameters apply on the NTN network.

An embodiment of the present application provides a method for processing quality of service parameters, which is applied to a first network device, including: the first network device receives a mapped QoS parameter, the mapped QoS parameter is applicable to an NTN network, and the mapped QoS parameter includes The mapped QoS parameters sent by the ground network device and/or the QoS parameters mapped by the second network function entity; the first network device sends the received mapped QoS parameters to the second network device.

An embodiment of the present application provides a method for processing quality of service parameters, which is applied to a second network device, including: when a terminal device accesses the second network device, the second network device uses the mapped QoS parameters, and the mapping The QoS parameters apply to NTN networks.

An embodiment of the present application further provides a terminal device, which includes: an access module configured to access a non-terrestrial network NTN network using mapped QoS parameters, where the mapped QoS parameters are applicable to the non-terrestrial network NTN network.

The embodiments of the present application further provide a network function entity, which is denoted as the first network function entity, and includes: an acquisition processing module configured to acquire and forward mapped QoS parameters, where the mapped QoS parameters are applicable to NTN networks.

The embodiments of the present application further provide a network function entity, which is denoted as a second network function entity, and includes: a mapping module, configured to map QoS parameters of a terminal device to obtain the mapped QoS parameters, and the mapped QoS parameters Parameters apply to NTN networks.

The embodiments of the present application further provide a network device, which is denoted as the first network device, and includes: a receiving module configured to receive mapped QoS parameters, where the mapped QoS parameters are applicable to an NTN network, and the mapped QoS parameters The parameters include the mapped QoS parameters sent by the ground network device and/or the QoS parameters mapped by the second network function entity; the sending module is configured to send the received mapped QoS parameters to the second network device.

The embodiments of the present application further provide a network device, which is denoted as a second network device, and includes: an access module, configured to use a mapped QoS parameter when a terminal device accesses the second network device, the mapping The QoS parameters apply to NTN networks.

An embodiment of the present application further provides a terminal device, including: a processor, a memory, and a transceiver, where the memory is used to store a computer program, and the processor invokes and runs the computer program stored in the memory to control the A processor cooperates with the transceiver to perform the method as described above.

Embodiments of the present application further provide a network function entity, including: a processor, a memory, and a transceiver, where the memory is used to store a computer program, and the processor invokes and runs the computer program stored in the memory to control the The processor cooperates with the transceiver to perform the method as described above.

An embodiment of the present application further provides a network device, including: a processor, a memory, and a transceiver, where the memory is used to store a computer program, and the processor invokes and runs the computer program stored in the memory to control the A processor cooperates with the transceiver to perform the method as described above.

An embodiment of the present application further provides a chip, including: at least one processor circuit, configured to call and run a computer program from a memory, so that a device installed with the chip executes the above method.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the above method.

Embodiments of the present application further provide a computer program product, including computer program instructions, wherein the computer program instructions cause a computer to execute the above method.

The embodiments of the present application also provide a computer program, the computer program enables a computer to execute the above method.

The embodiment of the present application proposes a QoS mapping mechanism for the NTN network. According to the embodiment of the present application, the terminal device can access the NTN network according to the mapped QoS parameters. The mapped QoS parameters are suitable for the NTN network, which can avoid the inconsistency of the QoS parameters. For access failure or handover failure caused by NTN network requirements, the embodiments of the present application can improve the continuity of service data transmission and improve the overall performance of the system.

Description of drawings

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

FIG. 2 is a schematic diagram of a handover flow based on an Xn interface.

FIG. 3 is a schematic diagram of a handover flow based on an N2 interface.

FIG. 4 is a schematic diagram of a session-based modification process.

FIG. 5 is a schematic diagram of the effect of the coverage of a satellite network and a terrestrial network.

6-10 are block diagrams of flowcharts of methods for processing quality of service parameters in different embodiments of the present application.

FIG. 11 is a schematic diagram of a session establishment process for joining a QoS mapping mechanism for an NTN network according to an embodiment of the present application.

FIG. 12 is a schematic flowchart of local mapping of QoS parameters between the UE and the network side during the session establishment process according to the embodiment of the present application.

FIG. 13 is a schematic flowchart of performing QoS mapping in a handover process in an N2 mode according to an embodiment of the present application.

FIG. 14 is a schematic structural block diagram of a terminal device according to an embodiment of the present application.

15 and 16 are schematic structural block diagrams of network functional entities in different embodiments of the present application.

17 and 18 are schematic structural block diagrams of network devices according to different embodiments of the present application.

FIG. 19 is a schematic block diagram of a communication device according to an embodiment of the present application.

FIG. 20 is a schematic block diagram of a chip according to an embodiment of the present application.

FIG. 21 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a wideband Code Division Multiple Access (CDMA) system (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced long term evolution, LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.

Optionally, the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.

The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

The terminal device can be a station (STAION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In this embodiment of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).

In this embodiment of the present application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.

As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.

In this embodiment of the present application, the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks The network equipment (gNB) in the PLMN network or the network equipment in the future evolved PLMN network, etc.

As an example and not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc. Optionally, the network device may also be a base station set in a location such as land or water.

In this embodiment of the present application, a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, the cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell). Pico cell), Femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

FIG. 1 schematically shows one network device 1100 and two terminal devices 1200. Optionally, the wireless communication system 1000 may include a plurality of network devices 1100, and the coverage of each network device 1100 may include other numbers terminal equipment, which is not limited in this embodiment of the present application. Optionally, the wireless communication system 1000 shown in FIG. 1 may also include other network entities such as a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF). This is not limited in the application examples.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is used to describe the association relationship of associated objects, for example, it means that there can be three relationships between the associated objects before and after, for example, A and/or B can mean: A alone exists, A and B exist simultaneously, There are three cases of B alone. The character "/" in this document generally indicates that the related objects are "or".

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.

In order to clearly illustrate the idea of the embodiments of the present application, the related content of the handover process in the communication system and the corresponding session modification process is briefly described first.

The communication system supports the handover process of the UE in the connected state. The following describes the handover process based on the interface Xn in the 5G network with reference to FIG. 2 .

In the preparation stage, the source base station needs to send the target cell identity, access stratum configuration, current QoS flow and data radio bearer (DRB) mapping relationship, and packet data unit (Packet Data Unit, PDU) session related information to the target base station. The target base station performs admission control on the UE, determines to accept or reject certain PDU sessions according to the supported slices, and sends a handover request confirmation message to the source base station. The source base station sends a radio resource control (Radio Resource Control, RRC) reconfiguration message to the terminal, instructing the UE to perform handover. The terminal performs the handover and sends the RRC reconfiguration complete. After that, the handover execution phase proceeds.

1. After the air interface handover is completed, the target base station sends a path handover request message to the AMF, including the PDU session to be handed over and the interface N2 message, the PDU session and N2 message of the handover failed, and the UE location information. When all QoS flows (QoS Flows) of a PDU session are not accepted by the target base station, or the session-related slices are not supported by the target base station, the session handover fails.

2. AMF finds the corresponding SMF through the locally stored UE session context according to the PDU session ID of the handover success/failure, and notifies it to update the session information, mainly including the SMF re-establishing the Radio Access Network (RAN) (base station) It is connected to the interface N3 between the User Plane Function (UPF).

3. The AMF responds to the path switch and triggers the source base station to release resources.

4. If the UE moves out of the RA, the mobility registration update procedure needs to be initiated subsequently.

For a PDU session with a successful handover, if there is a QoS Flow that fails to be established, the SMF will initiate a PDU session modification process after the handover is completed. For a PDU session that fails to be handed over, the SMF performs a PDU session release or deactivation procedure according to different reasons.

Referring to FIG. 3 , the handover process based on the interface N2 in the 5G network is described below.

1. The source base station sends a handover request (Handover Required) message to the AMF network element, including the target base station identifier, the PDU session information that needs to be handed over, and so on.

2. The AMF sends a message to the corresponding SMF to update the corresponding PDU session information according to the PDU session message that needs to be switched, in combination with the slices that it can serve.

3. The SMF confirms whether the corresponding PDU session can be switched. At the same time, the SMF will determine whether the I-UPF needs to be inserted according to the location of the UE, and establish the uplink between the UPFs.

4. SMF sends relevant N2 SM information or failure reason value to AMF according to whether the PDU session is established successfully or not.

5. The AMF sends the message sent by the source base station and the N2MM/SM message to the target base station through the handover request.

6. According to the slices and QoS Flows it can support, the target base station determines the PDU sessions that can be handed over and rejects the handover, and sends the result and N2 information to the AMF.

7. The AMF forwards the information received from the target-radio access network (T-RAN) to the SMF. For the failed QoS Flows established by the T-RAN, the SMF will initiate a PDU session modification after the handover is completed. process. For a PDU session that rejects handover, the SMF chooses to release the session or deactivate the session.

8. The SMF establishes an uplink transmission path between the RAN and the UPF for the PDU session that can receive handover. If an indirect forwarding path needs to be established, this step establishes an indirect forwarding path from the source UPF to the target base station.

9. The AMF acquires the information to be sent to the source base station, including the PDU session establishment message and the information of the S-UPF used for forwarding when the indirect forwarding path exists.

10. After receiving the information about the handover from the AMF, the source base station instructs the UE to perform the handover. The UE sends a handover confirmation to the target base station. The base station informs the AMF that the handover is successful.

11. If the target AMF (target-AMF, T-AMF) cannot support some PDU sessions due to some slicing reasons, the T-AMF triggers the PDU session release process. For other sessions, the T-AMF updates the information of the PDU session at the SMF.

12. SMF interacts with UPF to establish downlink data transmission path.

13. The SMF deletes the corresponding indirect forwarding tunnel.

The Xn-based and N2-based handover procedures are described above. Referring to FIG. 4 , the main flow of session establishment is described below.

1. The UE sends a session establishment request message to the AMF, which contains the session identifier, session type, secondary carrier component (SCC) mode (SCC mode), data network name (Data Network Name, DNN), single network slice selection Parameters such as auxiliary information (Single Network Slice Selection Assistance Information, S-NSSAI).

2. AMF selects a suitable SMF according to DNN, S-NSSAI and contract data.

3. The AMF invokes the session service of the selected SMF to trigger session establishment.

4. SMF obtains session subscription data from Unified Data Management (UDM), such as SCC mode allowed by the user, session type, and Session Aggregate Maximum Bit Rate (Session-AMBR), etc.

5. SMF selects PCF (Policy Control FuncTIon, policy control function) and UPF (User Plane Function, user plane function) for the session.

6. The SMF establishes a policy connection with the PCF to obtain the Policy Control and Charging (PCC) rule (PCC rule).

7. The SMF invokes the N1/N2 messaging service to send the session messages of the N1 and N2 interfaces to the AMF. The N1 message contains the QoS rule (QoS rule) sent to the UE and the QoS parameters of the QoS flow, and the N2 message contains the QoS configuration file sent to the base station.

8. The AMF sends the information obtained from the previous step to the base station through the N2 session request message.

9. The base station establishes air interface resources according to the received parameters, and at the same time, the base station sends a non-access stratum (Non-Access Stratum, NAS) message containing the PDU session establishment acceptance to the UE.

10. The base station sends an N2 message response to the AMF, including a list of QoS flow identities (QFI) accepted by the base station and a list of rejected QFIs.

11. The AMF invokes the session update service of the SMF, and sends the information obtained from the base station to the SMF.

12. The SMF allocates an IPv6 (Internet Protocol Version 6, Internet Protocol Version 6) address to the UE, and sends it to the UE through the user plane.

On the other hand, in a satellite network, due to the large coverage of satellites, there are areas that only satellites can cover but cannot be covered by existing terrestrial networks, as shown in Figure 5, where A is the area that the UE can only access through the satellite network. area. When the UE in the idle state moves from the ground access area to the area A, in order to ensure the continuity of service data, it is necessary to establish a session with the satellite access network for communication; when the UE in the connected state accesses from the ground When moving from the area of the terrestrial network to the area A, in order to ensure the continuity of the service data, it is necessary to perform the handover from the terrestrial network TN to the non-terrestrial network NTN such as the satellite network. However, due to the large delay of the satellite access network, the QoS parameters of the PDU session of the UE cannot be guaranteed, and the session establishment or handover is refused. In a more serious case, when all sessions cannot be accepted by the target base station, the entire handover process will fail. At this time, if the UE is in area A, it will face neither the coverage of the terrestrial cellular network nor any other access method to choose from. Therefore, the handover failure will cause the UE session to be interrupted, and the continuity of service data cannot be guaranteed.

To this end, an embodiment of the present application provides a method for processing quality of service (QoS) parameters, which is applied to a terminal device. Referring to FIG. 6 , the method includes:

S101, the terminal device uses the mapped QoS parameters to access the non-terrestrial network NTN network, where the mapped QoS parameters are applicable to the non-terrestrial network NTN network.

According to the embodiments of the present application, in some scenarios, for example, in the process of session establishment or modification of the terminal device, or in the process of switching the terminal device from the terrestrial network TN to the non-terrestrial network NTN, the terminal device can use the mapped QoS according to the The parameters are connected to the NTN network, and the mapped QoS parameters are suitable for the NTN network. In this way, the terminal equipment can meet the requirements of the NTN network (such as delay requirements, etc.), avoid communication failure due to the QoS parameters not meeting the requirements of the NTN network, and improve the connection The probability of success improves the user experience.

Correspondingly, an embodiment of the present application further provides a method for processing quality of service parameters, which is applied to the first network functional entity. Referring to FIG. 7 , the method includes:

S201, the first network function entity acquires and forwards the mapped QoS parameters, where the mapped QoS parameters are applicable to the NTN network.

Correspondingly, an embodiment of the present application further provides a method for processing quality of service parameters, which is applied to the second network function entity. Referring to FIG. 8 , the method includes:

S301, the second network function entity maps the QoS parameters of the terminal device to obtain the mapped QoS parameters, and the mapped QoS parameters are suitable for the NTN network.

Correspondingly, an embodiment of the present application further provides a method for processing quality of service parameters, which is applied to the first network device. Referring to FIG. 9 , the method includes:

S401: The first network device receives the mapped QoS parameters, where the mapped QoS parameters are applicable to the NTN network, and the mapped QoS parameters include the mapped QoS parameters sent by the terrestrial network device and/or the mapped QoS parameters by the second network function entity QoS parameters;

S402, the first network device sends the received mapped QoS parameters to the second network device.

Correspondingly, an embodiment of the present application further provides a method for processing quality of service parameters, which is applied to a second network device. Referring to FIG. 10 , the method includes:

S501 , in the case that the terminal device accesses the second network device, the second network device uses the mapped QoS parameters, and the mapped QoS parameters are applicable to the NTN network.

Using the embodiment of the present application, the second network function entity can perform mapping of QoS parameters to obtain QoS parameters suitable for NTN networks, for example, mapping QoS parameters corresponding to services that can meet delay requirements to QoS parameters for NTN networks; In different embodiments, for example during session establishment or modification, or during handover, the first network device and/or the second network device may obtain mapped QoS parameters, which are applicable to NTN networks, so It can ensure the successful handover and improve the overall performance of the system.

According to the embodiment of the present application, optionally, the NTN network to which the mapped QoS parameters are applicable includes at least one of the following situations:

●Non-terrestrial network is the network accessed by NTN;

●The backhaul network is an NTN network;

●Regeneration forwarding mode of NTN network;

●Packet Delay Budget (PDB);

●Packet Error Rate (PER);

● Priority ARP.

According to the embodiment of the present application, optionally, the first network function entity may include an AMF; the second network function entity may include a session management function (Session Management Function, SMF); the first network device includes a source base station; the second network device Including the target base station.

On the one hand, in different embodiments of the present application, the subjects performing the mapping are different, and the mapping can be performed locally in the terminal device, or the mapping can be performed by a second network function entity such as SMF (the mapped QoS parameters are sent to the terminal device), It is also possible to perform the mapping on the second network device, that is, the target base station; on the other hand, in different embodiments of the present application, the timing for performing the mapping is different, and the mapping can be performed in the session establishment or modification process, or in the handover process. . Various embodiments of the present application will be described in detail below.

<terminal equipment>

According to the embodiment of the present application, optionally, before the terminal device uses the mapped QoS parameters to access the NTN network, the terminal device maps the QoS parameters of the QoS flow of the service, and the mapped QoS parameters are applicable to the NTN network .

According to the embodiment of the present application, optionally, the terminal device performs the mapping after receiving a session establishment accept message or a packet data unit PDU session modification command message.

According to the embodiment of the present application, optionally, before the terminal device uses the mapped QoS parameters to access the NTN network, the terminal device receives the QoS parameters mapped by a network function entity (eg SMF) and applicable to the NTN network.

According to the embodiment of the present application, optionally, the QoS parameters mapped by the network function entity are carried by the N1 message or by the handover command message during the handover process.

According to the embodiment of the present application, optionally, the terminal device uses the mapped QoS parameters after moving from the terrestrial network device to the network device accessed by the NTN.

According to the embodiment of the present application, optionally, the mapping is based on the mapping of 5QI corresponding to different access network packet delay budgets AN-PDB or core network packet delay budgets CN-PDB.

<Network functional entity>

According to the embodiment of the present application, optionally, the first network function entity includes an AMF.

According to the embodiment of the present application, optionally, wherein, acquiring and forwarding the mapped QoS parameters by the first network function entity includes: receiving, by the first network function entity, the mapping by the second network function entity and being applicable to the NTN network and send the mapped QoS parameters to the terminal device through the N1 message.

According to the embodiment of the present application, optionally, the first network function entity receives an N2 message, and sends the N2 message to a network device currently accessed by the terminal device, where the N2 message includes information provided by the second network function Entity-mapped and applicable QoS parameters for NTN networks.

According to the embodiment of the present application, optionally, the first network function entity sends a handover request message to the second network function entity, where the handover request message indicates that the target network device is a network device accessed by NTN; the The first network function entity obtains and forwards the mapped QoS parameters, including: in the handover process, the first network function entity receives an N2 session management message and sends the N2 session management message to the target network device, the The N2 session management message includes QoS parameters mapped by the second network function entity and applicable to the NTN network.

According to the embodiment of the present application, optionally, the second network function entity includes an SMF.

According to the embodiment of the present application, optionally, the second network function entity performs the mapping in at least one of the following situations: a session establishment process, a session modification process, and a handover process.

According to the embodiment of the present application, optionally, before performing the mapping, the second network function entity receives QoS parameters sent by a third network function entity (for example, a PCF); the second network function entity may receive the QoS parameters according to the received To perform the mapping on the QoS parameters.

According to the embodiment of the present application, optionally, the second network function entity may perform the mapping according to a local configuration.

According to the embodiment of the present application, optionally, after performing the mapping, the second network function entity sends the mapped QoS parameters to the terminal device through the first network function entity (eg, AMF).

According to the embodiment of the present application, optionally, when the second network function entity performs the mapping, the mapping is performed based on 5QI corresponding to different access network packet delay budgets AN-PDB or core network packet delay budgets CN-PDB. map.

According to the embodiment of the present application, optionally, before performing the mapping, the method further includes: the second network function entity receives a handover request message sent by the first network function entity, where the handover request message indicates the target The network device is the network device accessed by the NTN.

According to the embodiment of the present application, optionally, it further includes: during the handover process, the second network function entity adds the mapped QoS parameter to the N2 session management message; the second network function entity adds the mapped QoS parameter to the N2 session management message; The N2 session management message is sent to the first network function entity.

<Network device>

According to the embodiment of the present application, optionally, the first network device includes a network device currently accessed by the terminal device; the second network device is a target network device, and the second network device includes a network device accessed by NTN.

According to the embodiment of the present application, optionally, the method further includes: receiving, by the second network device, QoS parameters mapped by the network function entity and applicable to the NTN network

According to the embodiment of the present application, optionally, the method further includes: receiving, by the second network device, the mapped QoS parameters sent by the first network device, where the mapped QoS parameters are applicable to the NTN network.

According to the embodiment of the present application, optionally, the method further includes: the second network device maps the QoS parameters of the terminal device, and the mapped QoS parameters are applicable to the NTN network.

According to the embodiment of the present application, optionally, the second network device performs the mapping in a handover preparation stage.

According to the embodiment of the present application, optionally, after the terminal device is switched from the first network device to the second network device, the second network device uses the mapped QoS parameters.

Using at least one of the above embodiments of the present application, during the session establishment process or the handover process, the UE or the SMF can map the QoS parameters, and map the QoS parameters corresponding to the services that can meet the delay requirement to the QoS parameters for the NTN network , which can ensure the success of the subsequent handover; in addition, the embodiments of the present application can also be applied to the scenario where the UE in the idle state moves to the satellite coverage network, and the mapped QoS parameters are used to establish a session under the satellite access network for communication. Ensure access is successful. Based on this, the embodiments of the present application can solve the problem that the continuity of service data cannot be guaranteed due to the large satellite access delay when a UE in a connected state or an idle state moves from a terrestrial network to a satellite coverage network, thereby improving the overall system. performance purpose.

Various implementations of the QoS parameter processing methods of the embodiments of the present application are described above through the embodiments. The embodiments of the present application are not limited to scenarios where the NTN is used as an access network, but are applicable to NTN as a backhaul network or a regeneration forwarding mode. The specific implementation process of the embodiments of the present application will be described below through a plurality of specific examples.

Example 1

In this embodiment, the QoS mapping is performed by the network side and sent to the UE. FIG. 11 schematically shows a flow chart of a session establishment process to which a QoS mapping mechanism for NTN networks is added, and the specific description is as follows.

1. The UE accessed through the terrestrial network sends a session establishment request message to the AMF. The message includes the session identifier, session type, SCC mode, DNN, S-NSSAI and other parameters.

2. AMF selects a suitable SMF according to DNN, S-NSSAI and contract data.

3. The AMF invokes the session service of the selected SMF to trigger session establishment.

4. The SMF obtains the session subscription data from the UDM, such as the SCC mode allowed by the user, the session type, and the Session-AMBR of the session.

5. The SMF selects the PCF and UPF for the session.

6. The SMF establishes a policy connection with the PCF to obtain the PCC rule.

7a. Optionally, the SMF performs the QoS mapping for the NTN network according to the QoS parameters obtained from the PCF, and maps the QoS parameters corresponding to the QoS flows corresponding to the services that can meet the delay requirements of the NTN network, and maps out the QoS applicable under the NTN network. parameter.

7b. Optionally, the SMF performs QoS mapping for the NTN network according to the local configuration, and maps the QoS parameters corresponding to the QoS flow corresponding to the service that can meet the delay requirement of the NTN network, and maps the corresponding QoS parameters applicable to the NTN network.

8. The SMF invokes the N1/N2 messaging service to send the session messages of the N1 and N2 interfaces to the AMF. The N1 message includes the QoS rule sent to the UE and the QoS parameters of the QoS flow and the mapped QoS parameters applicable to the NTN network, and the N2 message includes the QoS configuration file sent to the base station, wherein, optionally, in some of the application's In the embodiment, the QoS configuration file may include the mapped QoS parameters applicable to the NTN network; optionally, in other embodiments of the present application, the QoS configuration file may also not include the mapped QoS parameters applicable to the NTN network. .

9. The AMF sends the information obtained from the previous step to the base station through the N2 session request message.

10. The base station establishes air interface resources according to the received parameters, and at the same time, the base station sends a NAS message containing the PDU session establishment acceptance to the UE, and the NAS message includes the mapped QoS parameters applicable to the NTN network.

11. The base station sends an N2 message response to the AMF, including a list of QFIs accepted by the base station and a list of rejected QFIs.

12. The AMF invokes the session update service of the SMF, and sends the information obtained from the base station to the SMF.

13. The SMF allocates an IPv6 address to the UE and sends it to the UE through the user plane.

It should be noted that, in some embodiments of the present application, in the process of establishing a PDU session for a UE accessing through a terrestrial network, the SMF sends the mapped QoS parameters applicable to the NTN network to the base station and the UE for storage, and the terrestrial access During the process, the mapped QoS parameters are not used.

Example 2

In this embodiment, the UE and the network side locally map appropriate QoS parameters. FIG. 12 schematically shows a flow chart of a session establishment process to which a QoS mapping mechanism for an NTN network is added, and the specific description is as follows.

1. The UE accessed through the terrestrial network sends a session establishment request message to the AMF. The message includes the session identifier, session type, SCC mode, DNN, S-NSSAI and other parameters.

2. AMF selects a suitable SMF according to DNN, S-NSSAI and contract data.

3. The AMF invokes the session service of the selected SMF to trigger session establishment.

4. The SMF obtains the session subscription data from the UDM, such as the SCC mode allowed by the user, the session type, and the Session-AMBR of the session.

5. The SMF selects the PCF and UPF for the session.

6. The SMF establishes a policy connection with the PCF to obtain the PCC rule.

7a. The SMF performs QoS mapping for the NTN network according to the QoS parameters obtained from the PCF, and maps the QoS parameters applicable to the NTN network to the QoS parameters of the QoS flow corresponding to the service that can meet the delay requirements of the NTN network.

7b. The SMF performs QoS mapping for the NTN network according to the local configuration, and maps the QoS parameters applicable to the NTN network to the QoS parameters of the QoS flow corresponding to the service that can meet the delay requirements of the NTN network.

8. The SMF invokes the N1/N2 messaging service to send the session messages of the N1 and N2 interfaces to the AMF. The N1 message contains the QoS rule sent to the UE and the QoS parameters of the QoS flow, the N2 message contains the QoS configuration file sent to the base station, and the QoS configuration file optionally includes the mapped QoS parameters applicable to the NTN network.

9. The AMF sends the information obtained from the previous step to the base station through the N2 session request message.

10. The base station establishes the air interface resource according to the received parameters, and at the same time, the base station sends the NAS message including the PDU session establishment acceptance to the UE.

11. After the UE receives the PDU session establishment accept message, the UE maps the QoS parameters to the QoS parameters applicable to the NTN network.

12. The base station sends an N2 message response to the AMF, including a list of QFIs accepted by the base station and a list of rejected QFIs.

13. The AMF invokes the session update service of the SMF, and sends the information obtained from the base station to the SMF.

14. The SMF allocates an IPv6 address to the UE and sends it to the UE through the user plane.

It should be noted that the mapping mechanisms described in the above Embodiments 1 and 2 (including the SMF performing QoS mapping and sending the mapped QoS parameters to the base station and the UE, and the SMF and the UE themselves respectively performing QoS mapping to obtain the mapped QoS parameters) are applicable. In the session modification process, that is, the SMF may send the mapped QoS parameters to the base station and the UE in the session modification process, or the UE performs mapping by itself after receiving the session modification command. When the UE switches between terrestrial base stations, the terrestrial source base station or SMF sends the mapped QoS parameters to the terrestrial destination base station for storage. During the terrestrial access process, the mapped QoS parameters are not used.

In some embodiments of the present application, for the case where the base station decides to switch the UE to the base station accessed by the NTN network according to the measurement report of the UE, different switching modes can be adopted, and the source base station or SMF can change the QoS parameters corresponding to the PDU session of the UE and the mapped QoS parameters applicable to the NTN network are sent to the target base station. Although the target base station does not meet the QoS parameters of the UE's current QoS flow, but the target base station can meet the mapped QoS parameters applicable to the NTN network, the target base station shall accept the handover of the PDU session.

In some embodiments of the present application, in the switching mode of the TN-NTN network based on Xn, if the source base station side does not have the mapped QoS parameters applicable to the NTN network, the target base station can set the QoS parameters for the PDU session that needs to be switched. Mapping, that is, the target base station itself can perform mapping processing to obtain QoS parameters suitable for the NTN network, so that the target base station accepts a PDU session that can meet the delay requirement of the NTN network.

In some embodiments of the present application, after the UE moves from the TN network to the NTN network, both the UE and the network side use the mapped QoS parameters. Of course, it should be noted that the network side and the UE can both use the same rules for mapping the QoS parameters For example, UE, SMF can be mapped to different AN PDBs or CN PDBs based on 5QI, and the same value can be used for other parameters such as ARP or PER.

Example 3

In this embodiment, QoS mapping is performed in the switching process of the N2 mode. FIG. 13 schematically shows a flow chart of performing the QoS mapping in the switching process in the N2 mode, and the specific description is as follows.

1. The source base station sends a handover request Handover Required message to the AMF network element. Optionally, the Handover Required message may include a target base station identifier, which is used to indicate that the target base station is the base station accessed by the NTN network and the PDU session information that needs to be switched.

2. The AMF sends a message to the corresponding SMF to update the corresponding PDU session information according to the PDU session message that needs to be switched, in combination with the slices that it can serve.

3. The SMF confirms whether the corresponding PDU session can be switched. When the SMF receives the message from the AMF and knows that the target base station is the base station accessed by the NTN network, the SMF can determine whether the QoS parameters of the QoS flow included in the PDU session that needs to be switched can be switched. If it does not meet the requirements of the NTN network (for example, the delay requirement), if it can be satisfied, the mapping can be performed, and if it cannot be satisfied, the mapping will not be performed. Further, if it can be mapped, the SMF implements the mapping mechanism of QoS parameters, maps the QoS parameters of the original QoS flow to the QoS parameters applicable to the NTN network, and puts the mapped QoS parameters in the N2 session management information (N2 SM Information). ) to the target base station.

4. According to the location of the UE, the SMF will determine whether the I-UPF needs to be inserted, and establish the uplink between the UPFs.

5. The SMF sends the relevant N2 SM information to the AMF according to whether the PDU session is established successfully or not. The N2 SM information contains the mapped QoS parameters or the failure cause value.

6. The AMF sends the message sent by the source base station and the N2MM/SM message to the target base station through the handover request, and the SM message includes the mapped QoS parameters.

7. According to the slices and QoS Flows that the target base station can support, and the mapped QoS parameters contained in the N2 SM message, it determines the PDU sessions that can be switched or rejected, and sends the result and N2 information to the AMF. The target base station uses the QoS parameters mapped in the N2 SM message to set the DRB configuration to be sent to the UE.

8. AMF forwards the information received from T-RAN to SMF. For T-RAN that fails to establish QoS Flows, SMF will initiate a PDU session modification process after the handover is completed. For a PDU session that rejects handover, the SMF chooses to release the session or deactivate the session.

9. SMF establishes an uplink transmission path between RAN-UPF for the PDU session that can receive handover. If an indirect forwarding path needs to be established, this step establishes an indirect forwarding path from the source UPF to the target base station

10. The AMF acquires the information that needs to be sent to the source base station. Including the PDU session establishment message and the information of the S-UPF used for forwarding when the indirect forwarding path exists.

11. After receiving the information about the handover from the AMF, the source base station instructs the UE to perform the handover. The UE sends a handover confirmation to the target base station. The base station informs the AMF that the handover is successful.

12. If the T-AMF cannot support some PDU sessions due to some slicing reasons, the T-AMF triggers the PDU session release procedure. For other sessions, the T-AMF updates the information of the PDU session at the SMF.

13. SMF interacts with UPF to establish downlink data transmission path.

14. The SMF deletes the corresponding indirect forwarding tunnel.

In some embodiments of the present application, optionally, the AMF may send the mapped QoS parameters to the UE through a handover command (Handover command) message during the handover process; message to send the mapped QoS parameters to the UE.

According to at least one of the above embodiments of the present application, it can be seen that the UE in this embodiment of the present application can obtain the mapped QoS parameters, for example, ① can be obtained by mapping locally in the UE, ② can also be mapped by the SMF and the mapped QoS parameters QoS parameters are sent to the UE.

For the above point (2), specifically, the SMF can add a QoS mapping mechanism for the NTN network during the session establishment process or during the handover process, including: SMF corresponds to the QoS parameters of the QoS flow for services that can meet the delay requirements of the NTN network, The corresponding QoS parameters applicable under the NTN network are mapped; the SMF sends the mapped QoS parameters to the base station and the UE; the target base station accepts the corresponding session handover under the condition that the mapped QoS parameters can be satisfied. The embodiments of the present application can ensure that the terminal equipment in the idle state or the connected state is successfully connected after moving into the satellite coverage network, ensures the continuity of service data, and improves the user experience.

The specific settings and implementations of the embodiments of the present application have been described above through multiple embodiments from different perspectives. Corresponding to the processing method of at least one embodiment above, an embodiment of the present application further provides a terminal device 100, referring to FIG. 14, which includes:

The access module 110 is configured to use the mapped QoS parameters to access the non-terrestrial network NTN network, where the mapped QoS parameters are applicable to the non-terrestrial network NTN network.

Optionally, the NTN network to which the mapped QoS parameters are applicable includes at least one of the following cases: the non-terrestrial network is a network accessed by the NTN, the backhaul network is an NTN network, and the regeneration forwarding mode of the NTN network.

Optionally, the terminal device 100 further includes a mapping module for mapping the QoS parameters of the QoS flow of the service, and the mapped QoS parameters are applicable to the NTN network.

Optionally, the mapping component performs the mapping after receiving a session establishment accept message or a packet data unit PDU session modification command message.

Optionally, the terminal device 100 further includes a receiving module configured to receive the QoS parameters mapped by the network function entity and applicable to the NTN network.

Optionally, the QoS parameters mapped by the network function entity are carried by the N1 message or by the handover command message during the handover process.

Optionally, the terminal device uses the mapped QoS parameters after moving from the terrestrial network device to the network device accessed by the NTN.

Optionally, the mapping is based on the mapping of 5QI corresponding to different access network packet delay budgets AN-PDB or core network packet delay budgets CN-PDB.

Optionally, the network function entity includes a session management function SMF.

Corresponding to the processing method of the above at least one embodiment, an embodiment of the present application further provides a network function entity 200, which is denoted as the first network function entity, and with reference to FIG. 15, which includes:

The acquisition processing module 210 is configured to acquire and forward the mapped QoS parameters, where the mapped QoS parameters are applicable to the NTN network.

Optionally, the NTN network to which the mapped QoS parameters are applicable includes at least one of the following cases: the non-terrestrial network is a network accessed by the NTN, the backhaul network is an NTN network, and the regeneration forwarding mode of the NTN network.

Optionally, the acquisition processing module includes a first transceiver component, configured to receive the QoS parameters mapped by the second network function entity and applicable to the NTN network, and send the mapped QoS parameters to the terminal device through an N1 message.

Optionally, the network function entity 200 further includes: a transceiver module, configured to receive an N2 message, and send the N2 message to the network device currently accessed by the terminal device, where the N2 message includes the mapping by the second network function entity And it is applicable to the QoS parameters of NTN network.

Optionally, the network function entity 200 further includes: a sending module, configured to send a handover request message to the second network function entity, where the handover request message indicates that the target network device is a network device accessed by NTN;

The acquisition processing module includes a second transceiver component, configured to receive an N2 session management message and send the N2 session management message to the target network device during the handover process, where the N2 session management message includes a second QoS parameters mapped by network function entities and applicable to NTN networks.

Optionally, the first network function entity includes AMF, and the second network function entity includes SMF.

Corresponding to the processing method of the above at least one embodiment, an embodiment of the present application further provides a network function entity 300, which is denoted as a second network function entity. Referring to FIG. 16, the method includes:

The mapping module 310 is configured to map the QoS parameters of the terminal equipment to obtain the mapped QoS parameters, and the mapped QoS parameters are suitable for the NTN network.

Optionally, the NTN network to which the mapped QoS parameters are applicable includes at least one of the following cases: the non-terrestrial network is a network accessed by the NTN, the backhaul network is an NTN network, and the regeneration forwarding mode of the NTN network.

Optionally, the mapping module performs the mapping in at least one of the following situations: a session establishment process, a session modification process, and a handover process.

Optionally, the network function entity 300 further includes: a receiving module, configured to receive a QoS parameter sent by a third network function entity before the mapping module performs the mapping; QoS parameters perform the mapping.

Optionally, the third network function entity includes a PCF.

Optionally, the mapping module performs the mapping according to a local configuration.

Optionally, the network function entity 300 further includes: a first sending module, configured to send the mapped QoS parameters to the terminal device through the first network function entity after the mapping module performs the mapping.

Optionally, when the mapping module performs the mapping, mapping is performed based on 5QI corresponding to different access network packet delay budgets AN-PDB or core network packet delay budgets CN-PDB.

Optionally, the network function entity 300 further includes: a receiving module, configured to receive a handover request message sent by the first network function entity before the mapping module performs the mapping, where the handover request message indicates a target network device It is a network device connected by NTN.

Optionally, the network function entity 300 further includes: an adding module, configured to add the mapped QoS parameter to the N2 session management message during the handover process; a second sending module, configured to add the N2 session management message A session management message is sent to the first network function entity.

Optionally, the first network function entity includes AMF, and the second network function entity includes SMF.

Corresponding to the processing method of at least one of the above embodiments, an embodiment of the present application further provides a network device 400, which is denoted as the first network device. Referring to FIG. 17, it includes:

The receiving module 410 is configured to receive the mapped QoS parameters, where the mapped QoS parameters are applicable to the NTN network, and the mapped QoS parameters include the mapped QoS parameters sent by the ground network device and/or the mapped QoS parameters by the second network function entity. QoS parameters;

The sending module 420 is configured to send the received mapped QoS parameters to the second network device.

Optionally, the NTN network to which the mapped QoS parameters are applicable includes at least one of the following cases: the non-terrestrial network is a network accessed by the NTN, the backhaul network is an NTN network, and the regeneration forwarding mode of the NTN network.

Optionally, the second network function entity includes SMF.

Corresponding to the processing method of the above at least one embodiment, an embodiment of the present application further provides a network device 500, which is denoted as a second network device. Referring to FIG. 18, it includes:

The access module 510 is configured to use the mapped QoS parameters when the terminal device accesses the second network device, where the mapped QoS parameters are applicable to the NTN network.

Optionally, the NTN network to which the mapped QoS parameters are applicable includes at least one of the following cases: the non-terrestrial network is a network accessed by the NTN, the backhaul network is an NTN network, and the regeneration forwarding mode of the NTN network.

Optionally, the network device 500 further includes a first receiving module configured to receive QoS parameters mapped by the network function entity and applicable to the NTN network.

Optionally, the network device 500 further includes a second receiving module configured to receive the mapped QoS parameters sent by the first network device, where the mapped QoS parameters are applicable to the NTN network.

Optionally, the network device 500 further includes a mapping module configured to map the QoS parameters of the terminal device, and the mapped QoS parameters are applicable to the NTN network.

Optionally, the mapping module performs the mapping in a handover preparation stage.

Optionally, after the terminal device is switched from the first network device to the second network device, the second network device uses the mapped QoS parameters.

Optionally, the second network device includes a network device accessed by NTN.

Optionally, the network function entity includes SMF.

The terminal device 100 , the network function entities 200 , 300 , and the network devices 400 , 500 in the embodiments of the present application can implement the corresponding functions of the devices in the foregoing method embodiments. The terminal device 100 , the network function entities 200 , 300 , and the network device 400 For the corresponding processes, functions, implementations, and beneficial effects of each module (sub-module, unit, or component, etc.) in , 500, reference may be made to the corresponding descriptions in the foregoing method embodiments, which will not be repeated here.

It should be noted that the functions described by the respective modules (submodules, units, or components, etc.) in the terminal device 100, the network functional entities 200, 300, and the network devices 400, 500 in the embodiments of the present application may be described by different modules (submodules, submodules, etc.). module, unit or component, etc.), or it can be realized by the same module (sub-module, unit or component, etc.). For example, the first sending module and the second sending module may be different modules, or the same module. modules, all of which can implement their corresponding functions in the embodiments of the present application. In addition, the sending module and the receiving module in the embodiments of the present application may be implemented by the transceiver of the device, and some or all of the other modules may be implemented by the processor of the device.

19 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application, wherein the communication device 600 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, the communication device 600 may also include a memory 620 . The processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application.

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

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

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

Optionally, the communication device 600 may be the network device of this embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.

Optionally, the communication device 600 may be a terminal device in this embodiment of the present application, and the communication device 600 may implement corresponding processes implemented by the terminal device in each method in the embodiment of the present application, which is not repeated here for brevity.

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

Optionally, the chip 700 may further include a memory 720 . The processor 710 may call and run a computer program from the memory 720 to implement the methods in the embodiments of the present application.

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

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

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

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.

Optionally, the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which is not repeated here for brevity.

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

The above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an off-the-shelf programmable gate array (field programmable gate array, FPGA), an application specific integrated circuit (ASIC) or Other programmable logic devices, transistor logic devices, discrete hardware components, etc. The general-purpose processor mentioned above may be a microprocessor or any conventional processor or the like.

The memory mentioned above may be either volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory may be random access memory (RAM).

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

FIG. 21 is a schematic block diagram of a communication system 800 according to an embodiment of the present application, where the communication system 800 includes a terminal device 810 and a network device 820 .

The terminal device 810 may be used to implement the corresponding functions implemented by the terminal device in the methods of the various embodiments of the present application, and the network device 820 may be used to implement the corresponding functions implemented by the network device in the methods of the various embodiments of the present application. function. For brevity, details are not repeated here.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions may be stored on or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted over a wire from a website site, computer, server or data center (eg coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) means to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media. The available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), among others.

It should be understood that, in various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.

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

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art who is familiar with the technical scope disclosed in the present application can easily think of changes or substitutions. Covered within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (83)

A method for processing quality of service parameters, applied to a terminal device, the method comprising: The terminal device uses the mapped QoS parameters to access the non-terrestrial network NTN network, and the mapped QoS parameters are applicable to the non-terrestrial network NTN network. The method according to claim 1, wherein the NTN network to which the mapped QoS parameters are applicable includes at least one of the following situations: The non-terrestrial network is the network accessed by NTN; The backhaul network is the NTN network; Regenerative forwarding mode for NTN networks. The method according to claim 1 or 2, wherein before the terminal device uses the mapped QoS parameters to access the NTN network, the method further comprises: the terminal device maps the QoS parameters of the QoS flow of the service, mapping The latter QoS parameters apply to NTN networks. The method of claim 3, wherein the terminal device performs the mapping after receiving a session establishment accept message or a packet data unit (PDU) session modification command message. The method according to claim 1 or 2, wherein, before the terminal device uses the mapped QoS parameters to access the NTN network, the method further comprises: the terminal device receives a network function entity that is mapped and applicable to the NTN network. QoS parameters. The method according to claim 5, wherein the QoS parameter mapped by the network function entity is carried by the N1 message or by the handover command message in the handover process. The method according to any one of claims 1-6, wherein, The terminal equipment uses the mapped QoS parameters after moving from the terrestrial network equipment to the network equipment accessed by the NTN. The method of any one of claims 1-7, wherein, The mapping is based on the mapping of 5QI corresponding to different access network packet delay budgets AN-PDB or core network packet delay budgets CN-PDB. A method according to claim 5 or 6, wherein the network function entity comprises a session management function SMF. A method for processing quality of service parameters, applied to a first network function entity, the method comprising: The first network function entity acquires and forwards the mapped QoS parameters, where the mapped QoS parameters are applicable to the NTN network. The method according to claim 10, wherein the NTN network to which the mapped QoS parameters are applicable includes at least one of the following situations: The non-terrestrial network is the network accessed by NTN; The backhaul network is the NTN network; Regenerative forwarding mode for NTN networks. A method according to claim 10 or 11, wherein, Obtaining and forwarding the mapped QoS parameters by the first network function entity includes: the first network function entity receiving the QoS parameters mapped by the second network function entity and applicable to the NTN network and sending the mapped QoS parameters through an N1 message to the terminal device. The method of claim 10 or 11, further comprising: The first network function entity receives the N2 message, and sends the N2 message to the network device currently accessed by the terminal device, where the N2 message includes QoS parameters mapped by the second network function entity and applicable to the NTN network. The method of claim 10 or 11, further comprising: The first network function entity sends a handover request message to the second network function entity, where the handover request message indicates that the target network device is a network device accessed by NTN; The obtaining and forwarding of the mapped QoS parameters by the first network function entity includes: during the handover process, the first network function entity receives an N2 session management message and sends the N2 session management message to the target network device, The N2 session management message includes QoS parameters mapped by the second network function entity and applicable to the NTN network. 14. The method of any of claims 12-14, wherein the first network function entity comprises an access and mobility management function AMF and the second network function entity comprises an SMF. A method for processing quality of service parameters, applied to a second network function entity, the method comprising: The second network function entity maps the QoS parameters of the terminal device to obtain the mapped QoS parameters, and the mapped QoS parameters are suitable for the NTN network. The method according to claim 16, wherein the NTN network to which the mapped QoS parameters are applicable includes at least one of the following situations: The non-terrestrial network is the network accessed by NTN; The backhaul network is the NTN network; Regenerative forwarding mode for NTN networks. The method according to claim 16 or 17, wherein the second network function entity performs the mapping in at least one of the following situations: during session establishment, during session modification, during handover. The method of any of claims 16-18, wherein, before performing the mapping, the method further comprises: The second network function entity receives the QoS parameter sent by the third network function entity; Wherein, the second network function entity performs the mapping according to the received QoS parameters. The method of claim 19, wherein the third network function entity comprises a policy control function PCF. 18. The method of any of claims 16-18, wherein the second network function entity performs the mapping according to a local configuration. The method according to any one of claims 16-21, wherein after performing the mapping, the method further comprises: the second network function entity sending the mapped QoS parameters through the first network function entity to the terminal device. The method of any one of claims 16-22, wherein, When the second network function entity performs the mapping, mapping is performed based on 5QI corresponding to different access network packet delay budgets AN-PDB or core network packet delay budgets CN-PDB. The method according to claim 16 or 17, wherein before performing the mapping, the method further comprises: the second network function entity receives a handover request message sent by the first network function entity, the handover request message Indicates that the target network device is an NTN-accessed network device. The method of claim 24, further comprising: During the handover process, the second network function entity adds the mapped QoS parameter to the N2 session management message; The second network function entity sends the N2 session management message to the first network function entity. The method of any of claims 22-25, wherein the first network function entity comprises an AMF and the second network function entity comprises an SMF. A method for processing quality of service parameters, applied to a first network device, the method comprising: The first network device receives the mapped QoS parameters, the mapped QoS parameters are applicable to the NTN network, and the mapped QoS parameters include the mapped QoS parameters sent by the terrestrial network device and/or the QoS parameters mapped by the second network function entity ; The first network device sends the received mapped QoS parameters to the second network device. The method according to claim 27, wherein the NTN network to which the mapped QoS parameters are applicable includes at least one of the following situations: The non-terrestrial network is the network accessed by NTN; The backhaul network is the NTN network; Regenerative forwarding mode for NTN networks. The method of claim 27 or 28, wherein the second network function entity comprises an SMF. A method for processing quality of service parameters, applied to a second network device, the method comprising: When the terminal device accesses the second network device, the second network device uses the mapped QoS parameters, and the mapped QoS parameters are applicable to the NTN network. The method according to claim 30, wherein the NTN network to which the mapped QoS parameters are applicable includes at least one of the following situations: The non-terrestrial network is the network accessed by NTN; The backhaul network is the NTN network; Regenerative forwarding mode for NTN networks. The method of claim 30 or 31, further comprising: The second network device receives QoS parameters mapped by the network function entity and applicable to the NTN network. The method of claim 30 or 31, further comprising: The second network device receives the mapped QoS parameters sent by the first network device, and the mapped QoS parameters are applicable to the NTN network. The method of claim 30 or 31, further comprising: The second network device maps the QoS parameters of the terminal device, and the mapped QoS parameters are suitable for the NTN network. 35. The method of claim 34, wherein the second network device performs the mapping during a handover preparation phase. The method of any one of claims 30-35, wherein, After the terminal device is switched from the first network device to the second network device, the second network device uses the mapped QoS parameters. The method of any one of claims 30-36, wherein the second network device comprises an NTN-accessed network device. 33. The method of claim 32, wherein the network function entity comprises an SMF. A terminal device including: The access module is configured to access the non-terrestrial network NTN network by using the mapped QoS parameters, where the mapped QoS parameters are applicable to the non-terrestrial network NTN network. The terminal device according to claim 39, wherein the NTN network to which the mapped QoS parameters are applicable includes at least one of the following situations: The non-terrestrial network is the network accessed by NTN; The backhaul network is the NTN network; Regenerative forwarding mode for NTN networks. The terminal device according to claim 39 or 40, further comprising: The mapping module is used for mapping the QoS parameters of the QoS flow of the service, and the mapped QoS parameters are suitable for the NTN network. 41. The terminal device of claim 41, wherein the mapping component performs the mapping after receiving a session setup accept message or a packet data unit (PDU) session modification command message. The terminal device according to claim 39 or 40, further comprising: The receiving module is used for receiving the QoS parameters mapped by the network function entity and applicable to the NTN network. The terminal device according to claim 43, wherein the QoS parameters mapped by the network function entity are carried by the N1 message or by the handover command message in the handover process. The terminal device according to any one of claims 39-44, wherein, The terminal equipment uses the mapped QoS parameters after moving from the terrestrial network equipment to the network equipment accessed by the NTN. The terminal device according to any one of claims 39-45, wherein, The mapping is based on the mapping of 5QI corresponding to different access network packet delay budgets AN-PDB or core network packet delay budgets CN-PDB. A terminal device according to claim 43 or 44, wherein the network function entity comprises a session management function SMF. A network function entity, which is recorded as the first network function entity, includes: An acquisition processing module, configured to acquire and forward the mapped QoS parameters, where the mapped QoS parameters are applicable to the NTN network. The network function entity according to claim 48, wherein the NTN network to which the mapped QoS parameters are applicable includes at least one of the following situations: The non-terrestrial network is the network accessed by NTN; The backhaul network is the NTN network; Regenerative forwarding mode for NTN networks. A network function entity according to claim 48 or 49, wherein, The acquisition processing module includes a first transceiver component, configured to receive the QoS parameters mapped by the second network function entity and applicable to the NTN network, and send the mapped QoS parameters to the terminal device through an N1 message. The network function entity according to claim 48 or 49, further comprising: The transceiver module is configured to receive an N2 message and send the N2 message to the network device currently accessed by the terminal device, where the N2 message includes QoS parameters mapped by the second network function entity and applicable to the NTN network. The network function entity according to claim 48 or 49, further comprising: a sending module, configured to send a handover request message to the second network function entity, where the handover request message indicates that the target network device is a network device accessed by NTN; The acquisition processing module includes a second transceiver component, configured to receive an N2 session management message and send the N2 session management message to the target network device during the handover process, where the N2 session management message includes a second QoS parameters mapped by network function entities and applicable to NTN networks. The network function entity of any of claims 50-52, wherein the first network function entity comprises an AMF and the second network function entity comprises an SMF. A network function entity, which is denoted as the second network function entity, includes: The mapping module is used for mapping the QoS parameters of the terminal equipment to obtain the mapped QoS parameters, and the mapped QoS parameters are suitable for the NTN network. The network function entity according to claim 54, wherein the NTN network to which the mapped QoS parameters are applicable includes at least one of the following situations: The non-terrestrial network is the network accessed by NTN; The backhaul network is the NTN network; Regenerative forwarding mode for NTN networks. The network function entity of claim 54 or 55, wherein the mapping module performs the mapping in at least one of the following situations: during session establishment, during session modification, during handover. The network function entity according to any one of claims 54-56, further comprising: a receiving module, configured to receive a QoS parameter sent by a third network function entity before the mapping module performs the mapping; Wherein, the mapping module performs the mapping according to the received QoS parameters. The network function entity of claim 57, wherein the third network function entity comprises a PCF. The network function entity of any of claims 54-56, wherein the mapping module performs the mapping according to a local configuration. The network function entity according to any one of claims 54-59, further comprising: a first sending module, configured to send the mapped QoS parameters through the first network after the mapping module performs the mapping The functional entity is sent to the terminal device. A network function entity according to any of claims 54-60, wherein, When the mapping module performs the mapping, the mapping is performed based on the 5QI corresponding to different access network packet delay budgets AN-PDB or core network packet delay budgets CN-PDB. The network function entity according to claim 54 or 55, further comprising: a receiving module, configured to receive a handover request message sent by the first network function entity before the mapping module performs the mapping, the handover request The message indicates that the target network device is an NTN-accessed network device. The network function entity of claim 62, further comprising: The adding module is used for adding the mapped QoS parameter to the N2 session management message during the handover process; A second sending module, configured to send the N2 session management message to the first network function entity. The network function entity of any of claims 60-63, wherein the first network function entity comprises an AMF and the second network function entity comprises an SMF. A network device, which is recorded as the first network device, includes: A receiving module, configured to receive the mapped QoS parameters, where the mapped QoS parameters are applicable to the NTN network, and the mapped QoS parameters include the mapped QoS parameters sent by the ground network equipment and/or the mapped QoS parameters by the second network function entity parameter; A sending module, configured to send the received mapped QoS parameters to the second network device. The network device according to claim 65, wherein the NTN network to which the mapped QoS parameters are applicable includes at least one of the following situations: The non-terrestrial network is the network accessed by NTN; The backhaul network is the NTN network; Regenerative forwarding mode for NTN networks. The network device of claim 65 or 66, wherein the second network function entity comprises an SMF. A network device, which is denoted as a second network device, includes: The access module is configured to use the mapped QoS parameters when the terminal device accesses the second network device, where the mapped QoS parameters are applicable to the NTN network. The network device according to claim 68, wherein the NTN network to which the mapped QoS parameters are applicable includes at least one of the following situations: The non-terrestrial network is the network accessed by NTN; The backhaul network is the NTN network; Regenerative forwarding mode for NTN networks. The network device of claim 68 or 69, further comprising: The first receiving module is configured to receive the QoS parameters mapped by the network function entity and applicable to the NTN network. The network device of claim 68 or 69, further comprising: The second receiving module is configured to receive the mapped QoS parameters sent by the first network device, where the mapped QoS parameters are applicable to the NTN network. The network device of claim 68 or 69, further comprising: The mapping module is used for mapping the QoS parameters of the terminal equipment, and the mapped QoS parameters are suitable for the NTN network. The network device of claim 72, wherein the mapping module performs the mapping during a handover preparation phase. The network device of any of claims 68-73, wherein, After the terminal device is switched from the first network device to the second network device, the second network device uses the mapped QoS parameters. The network device according to any one of claims 68-74, wherein the second network device comprises an NTN-accessed network device. The network device of claim 70, wherein the network function entity comprises an SMF. A terminal device, comprising: a processor, a memory and a transceiver, the memory is used to store a computer program, the processor invokes and runs the computer program stored in the memory to control the processor to communicate with the transceiver cooperating to perform the method of any one of claims 1 to 9. A network function entity, comprising: a processor, a memory and a transceiver, the memory is used to store a computer program, the processor invokes and runs the computer program stored in the memory to control the processor and the The transceivers cooperate to perform the method of any of claims 10 to 26. A network device, comprising: a processor, a memory and a transceiver, the memory is used to store a computer program, the processor calls and runs the computer program stored in the memory to control the processor to communicate with the transceiver cooperating to perform a method as claimed in any one of claims 27 to 38. A chip that includes: At least one processor circuit for recalling and running a computer program from a memory to cause a device on which the chip is installed to perform the method of any one of claims 1 to 38. A computer-readable storage medium for storing a computer program, wherein, The computer program causes a computer to perform the method of any one of claims 1 to 38. A computer program product comprising computer program instructions, wherein, The computer program instructions cause a computer to perform the method of any of claims 1 to 38. A computer program that causes a computer to perform the method of any one of claims 1 to 38.

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