CN116530144A

CN116530144A - Quality of service parameter processing method, terminal equipment, network function entity and network equipment

Info

Publication number: CN116530144A
Application number: CN202180079770.8A
Authority: CN
Inventors: 陈景然; 卢飞
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2023-08-01
Also published as: WO2022160303A1

Abstract

The application relates to a quality of service parameter processing method, terminal equipment, a network functional entity and network equipment, wherein the method comprises the following steps: the terminal device uses the mapped QoS parameter to access the non-terrestrial network NTN network, and the mapped QoS parameter is applicable to the non-terrestrial network NTN network. By using the mapping mechanism of the service quality parameter optimization method and the mapping mechanism of the service quality parameter optimization system, the mapping mechanism of the service quality parameter can be optimized.

Description

Quality of service parameter processing method, terminal equipment, network function entity and network equipment

Technical Field

The present invention relates to the field of communications, and in particular, to a quality of service parameter processing method, a terminal device, a network functional entity, and a network device.

Background

In a Non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, a satellite communication mode is adopted to provide communication services for terrestrial users, and since a communication distance between a terminal device and a satellite or network device is far, a Round Trip Time (RTT) of signal transmission is far longer than an RTT of the terrestrial communication system, so that existing parameters for the terrestrial communication network cannot be directly used in the Non-terrestrial communication network. Because of the large satellite access delay, the requirements of quality of service (Quality of Service, qoS) cannot be met, resulting in that the terrestrial users cannot directly communicate with the satellite network.

Disclosure of Invention

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

The embodiment of the application provides a service quality parameter processing method, which is applied to terminal equipment and comprises the following steps: the terminal device uses the mapped QoS parameter to access the non-terrestrial network NTN network, and the mapped QoS parameter is applicable to the non-terrestrial network NTN network.

The embodiment of the application provides a service quality parameter processing method, which is applied to a first network functional entity and comprises the following steps: the first network function entity obtains and forwards mapped QoS parameters applicable to the NTN network.

The embodiment of the application provides a service quality parameter processing method, which is applied to a second network functional entity and comprises the following steps: the second network function entity maps the QoS parameters of the terminal equipment to obtain mapped QoS parameters, and the mapped QoS parameters are applicable to the NTN network.

The embodiment of the application provides a service quality parameter processing method, which is applied to first network equipment and comprises the following steps: the first network equipment receives mapped QoS parameters, wherein the mapped QoS parameters are applicable to the NTN network, and the mapped QoS parameters comprise mapped QoS parameters sent by the ground network equipment and/or QoS parameters mapped by the second network functional entity; the first network device sends the received mapped QoS parameters to the second network device.

The embodiment of the application provides a service quality parameter processing method, which is applied to second network equipment and comprises the following steps: in case the terminal device accesses the second network device, the second network device uses mapped QoS parameters, which are applicable to the NTN network.

The embodiment of the application also provides a terminal device, which comprises: an access module, configured to access a non-terrestrial network NTN network using a mapped QoS parameter, where the mapped QoS parameter is applicable to the non-terrestrial network NTN network.

The embodiment of the application also provides a network function entity, which is recorded as a first network function entity, comprising: and the acquisition processing module is used for acquiring and forwarding the mapped QoS parameters, wherein the mapped QoS parameters are applicable to the NTN network.

The embodiment of the application also provides a network function entity, which is recorded as a second network function entity, comprising: the mapping module is used for mapping the QoS parameters of the terminal equipment to obtain mapped QoS parameters, and the mapped QoS parameters are applicable to the NTN network.

The embodiment of the application also provides a network device, which is recorded as a first network device, comprising: a receiving module, configured to receive a mapped QoS parameter, where the mapped QoS parameter is applicable to the NTN network, and the mapped QoS parameter includes a mapped QoS parameter sent by the ground network device and/or a mapped QoS parameter mapped by the second network function entity; and the sending module is used for sending the received mapped QoS parameters to the second network equipment.

The embodiment of the application also provides a network device, which is recorded as a second network device, comprising: an access module, configured to use a mapped QoS parameter in case the terminal device accesses the second network device, where the mapped QoS parameter is applicable to the NTN network.

The embodiment of the application also provides a terminal device, which comprises: a processor, a memory and a transceiver, the memory for storing a computer program, the processor invoking and running the computer program stored in the memory to control the processor to cooperate with the transceiver to perform the method as described above.

The embodiment of the application also provides a network functional entity, which comprises: a processor, a memory and a transceiver, the memory for storing a computer program, the processor invoking and running the computer program stored in the memory to control the processor to cooperate with the transceiver to perform the method as described above.

The embodiment of the application also provides a network device, which comprises: a processor, a memory and a transceiver, the memory for storing a computer program, the processor invoking and running the computer program stored in the memory to control the processor to cooperate with the transceiver to perform the method as described above.

The embodiment of the application also provides a chip, which comprises: at least one processor circuit for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method as described above.

Embodiments of the present application also provide a computer-readable storage medium storing a computer program, wherein the computer program causes a computer to perform the method as described above.

Embodiments of the present application also provide a computer program product comprising computer program instructions, wherein the computer program instructions cause a computer to perform the method as described above.

Embodiments of the present application also provide a computer program that causes a computer to perform the method as described above.

According to the embodiment of the application, the terminal equipment can access the NTN according to the mapped QoS parameters, the mapped QoS parameters are suitable for the NTN, access failure or switching failure caused by that the QoS parameters do not meet the requirements of the NTN can be avoided, and the continuity of service data transmission can be improved by utilizing the embodiment of the application, so that the overall performance of the system is improved.

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 procedure based on an Xn interface.

Fig. 3 is a schematic diagram of a switching flow based on an N2 interface.

Fig. 4 is a schematic diagram of a session-based modification procedure.

Fig. 5 is an effect diagram of coverage of a satellite network and a terrestrial network.

Fig. 6-10 are flow diagrams of quality of service parameter processing methods in various embodiments of the present application.

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

Fig. 12 is a flowchart of local mapping QoS parameters of a UE and a network side in a session establishment procedure according to an embodiment of the present application.

Fig. 13 is a flowchart illustrating QoS mapping performed during a handover in the N2 mode according to an embodiment of the present application.

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

Fig. 15 and 16 are schematic block diagrams of network functional entities according to various embodiments of the present application.

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

Fig. 19 is a schematic block diagram of a communication device of an embodiment of the present application.

Fig. 20 is a schematic block diagram of a chip of an embodiment of the present application.

Fig. 21 is a schematic block diagram of a communication system of an embodiment of the present application.

Detailed Description

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

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (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, evolved system of NR system, LTE-based access to unlicensed spectrum, LTE-U) system over unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system over unlicensed spectrum, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wiFi), fifth Generation communication (5 th-Generation, 5G) system, or other communication system, etc.

Generally, the number of connections supported by the conventional communication system is limited and easy to implement, however, with the development of communication technology, the mobile communication system will support not only conventional communication but also, for example, device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) communication, or internet of vehicles (Vehicle to everything, V2X) communication, etc., and the embodiments of the present application may also be applied to these communication systems.

Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, and a Stand Alone (SA) fabric scenario.

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

The terminal device may be a Station (ST) in a WLAN, may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle device, a wearable device, a terminal device in a next generation communication system such as an NR network, or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In embodiments of the present application, the terminal device may be deployed on land, including indoor or outdoor, hand-held, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.).

In the embodiment of the present application, the terminal device may be a Mobile Phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented Reality (Augmented Reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned driving (self driving), a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), or a wireless terminal device in smart home (smart home), and the like.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various 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, where the network device may be an Access Point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or an Access Point, a vehicle device, a wearable device, a network device (gNB) in NR network, or a network device in a PLMN network of future evolution, etc.

By way of example and not limitation, in embodiments of the present application, a network device may have a mobile nature, e.g., the network device may be a mobile device. Alternatively, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite, or the like. Alternatively, the network device may be a base station disposed on land, in a water area, or the like.

In this embodiment of the present application, a network device may provide a service for a cell, where a terminal device communicates with the network device through a transmission resource (e.g., a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a cell corresponding to a network device (e.g., a base station), and the cell may belong to a macro base station, or may belong to a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

Fig. 1 schematically illustrates one network device 1100 and two terminal devices 1200, alternatively, the wireless communication system 1000 may include a plurality of network devices 1100, and the coverage area of each network device 1100 may include other numbers of terminal devices, which are not limited by the embodiments of the present application. Optionally, the wireless communication system 1000 shown in fig. 1 may further 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), and the embodiment of the present application is not limited thereto.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" is used herein to describe association of associated objects, for example, to indicate that there may be three relationships between the associated objects, for example, a and/or B, may indicate: three cases of A alone, A and B together, and B alone exist. The character "/" herein generally indicates that the context associated object is an "or" relationship.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct correspondence or an indirect correspondence between the two, or may indicate that there is an association between the two, or may indicate a relationship between the two and the indicated, configured, or the like.

In order to clearly illustrate the ideas of the embodiments of the present application, a brief description will be first made of the handoff procedure in the communication system and the related contents of the corresponding session modification procedure.

The communication system supports a handover procedure for a UE in a connected state, and the handover procedure based on the interface Xn in the 5G network is described below in connection with fig. 2.

In the preparation phase, the source base station needs to transmit the target cell identity, the access layer configuration, the current QoS flow, the Data radio bearer (Data Radio Bearer, DRB) mapping relation, packet Data Unit (PDU) session related information, and the like to the target base station. And the target base station performs access 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 a handover. And the terminal performs switching and sends the RRC reconfiguration to complete. Thereafter, a handover execution phase is performed.

1. After the air interface switching is completed, the target base station sends a path switching request message to the AMF, wherein the path switching request message comprises PDU (protocol data unit) session and interface N2 message to be switched, PDU session and N2 message with switching failure, UE (user equipment) position information and the like. A session handoff fails when none of the QoS Flows (QoS Flows) of one PDU session are accepted by the target base station or the session-related slice is not supported by the target base station.

According to PDU session ID of successful/failed handover, AMF finds out corresponding SMF through UE session context stored locally, and informs it to update session information, mainly including SMF re-establishes interface N3 connection between radio access network (Radio Access Network, RAN) (base station) and user plane function (User Plane Function, UPF).

And 3, AMF responds to path switching to trigger the source base station to release resources.

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

For a PDU session with successful handover, if there is a QoS Flow with failed establishment, the SMF will initiate a PDU session modification procedure after the handover is completed. For a PDU session with failed handover, the SMF performs a PDU session release or deactivation procedure according to different reasons.

With reference to fig. 3, the following describes a handover procedure based on the interface N2 in the 5G network.

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

AMF sends message to corresponding SMF to update corresponding PDU session information according to PDU session message switched as required and combining slice which can be served by AMF.

And 3, the SMF confirms whether the corresponding PDU session can be switched, and meanwhile, the SMF judges whether the I-UPF needs to be inserted according to the position of the UE, and establishes an uplink between UPFs.

And 4, the SMF sends related N2 SM information or failure reason value to the AMF according to the success or failure of PDU session establishment.

And 5, the AMF transmits the message sent by the source base station and the N2MM/SM message to the target base station through a switching request.

6. And the target base station judges PDU session which can be switched and refused to be switched according to the slice and QoS flow which can be supported by the target base station and sends the result and N2 information to the AMF.

The amf forwards information received from the target-radio access network (T-radio access network, T-RAN) to the SMF, which will initiate the PDU session modification procedure after the handover is completed for QoS Flows for which the T-RAN setup failed. For PDU sessions that reject handover, SMF selects either release session or deactivate session.

The SMF establishes an uplink transmission path between RAN and UPF for the PDU session capable of receiving the handover, and if an indirect forwarding path needs to be established, the step establishes an indirect forwarding path from the source UPF to the target base station.

The amf obtains information to be sent to the source base station, including PDU session setup message and S-UPF information for forwarding when an indirect forwarding path exists.

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

11. If the target AMF (T-AMF) cannot support certain PDU sessions for certain slicing reasons, the T-AMF triggers a PDU session release procedure. For other sessions, the T-AMF updates the PDU session information at the SMF.

SMF interacts with UPF to establish downlink data transmission path.

Smf deletes the corresponding indirect forwarding tunnel.

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

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

AMF selects the appropriate SMF based on DNN, S-NSSAI and subscription data.

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

Smf obtains Session subscription data from unified data management (Unified Data Management, UDM), such as SCC mode allowed by the user, session type, session aggregation maximum bit rate (Session Aggregate Maximum Bit Rate, session-AMBR), etc.

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

The smf establishes a policy connection with the PCF, and obtains Policy Control and Charging (PCC) rules (PCC rule).

The SMF invokes an N1/N2 messaging service to send session messages for the N1 and N2 interfaces to the AMF. Wherein the N1 message contains QoS rules (QoS rule) sent to the UE and QoS parameters of the QoS flow and the N2 message contains the QoS profile sent to the base station.

The amf transmits the information obtained from the previous step to the base station through an N2 session request message.

9. And the base station establishes air interface resources according to the received parameters, and simultaneously, the base station transmits Non-Access Stratum (NAS) information containing PDU session establishment acceptance to the UE.

10. The base station sends an N2 message reply to the AMF containing a list of QoS flow identities (QoS flow identity, QFI) and a list of rejected QFI that the base station accepts.

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

The smf allocates an IPv6 (Internet Protocol Version, internet protocol version 6) address for the UE, which is sent to the UE through the user plane.

On the other hand, in the satellite network, since the satellite coverage is large, there is an area where only the satellite can cover but the existing terrestrial network cannot, as shown in fig. 5, where a is an area where the UE can only access through the satellite network. When the UE in an idle state moves from a ground access area to an area A, a session is required to be established with a satellite access network for communication in order to ensure the continuity of service data; when the UE in the connected state moves from the area accessed from the ground to the area a, in order to ensure the continuity of service data, a handover from the ground network TN to a non-ground network NTN such as a satellite network is required. However, due to the characteristic of large delay of the satellite access network, qoS parameters of PDU session of the UE cannot be guaranteed, and thus the session is refused to be established or handover is refused. In more serious cases, when all sessions are not accepted by the target base station, the whole handover procedure fails. At this time, if the UE is in the area a, the coverage of the terrestrial cellular network is not available, and no other access mode is selectable, so that the session interruption of the UE is caused by the handover failure, and the continuity of the service data is not guaranteed.

To this end, an embodiment of the present application provides a quality of service QoS parameter processing method, applied to a terminal device, with reference to fig. 6, the method includes:

s101, the terminal equipment 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.

According to the embodiment of the application, in some situations, for example, in the session establishment or modification process of the terminal equipment, or in the process of switching the terminal equipment from the terrestrial network TN to the non-terrestrial network NTN, the terminal equipment can access the NTN network according to the mapped QoS parameters, and the mapped QoS parameters are applicable to the NTN network, so that the terminal equipment can meet the requirements (such as time delay requirements) of the NTN network, avoid communication failure caused by that the QoS parameters do not meet the requirements of the NTN network, improve the probability of connection success, and improve the user experience.

Correspondingly, the embodiment of the application also provides a service quality parameter processing method, which is applied to the first network functional entity, and referring to fig. 7, the method includes:

s201, the first network function entity acquires and forwards the mapped QoS parameters, wherein the mapped QoS parameters are applicable to the NTN network.

Correspondingly, the embodiment of the application also provides a service quality parameter processing method, which is applied to the second network functional entity, and referring to fig. 8, the method includes:

S301, the second network function entity maps the QoS parameters of the terminal equipment to obtain mapped QoS parameters, and the mapped QoS parameters are applicable to the NTN network.

Correspondingly, the embodiment of the application also provides a quality of service parameter processing method, which is applied to the first network device, and referring to fig. 9, the method includes:

s401, the first network equipment receives mapped QoS parameters, wherein the mapped QoS parameters are applicable to the NTN network, and the mapped QoS parameters comprise mapped QoS parameters sent by the ground network equipment and/or QoS parameters mapped by the second network functional entity;

s402, the first network device sends the received mapped QoS parameters to the second network device.

Correspondingly, the embodiment of the application also provides a quality of service parameter processing method, which is applied to the second network device, and 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 a mapped QoS parameter, where the mapped QoS parameter is applicable to the NTN network.

By using the embodiment of the application, the second network functional entity can map the QoS parameters to obtain the QoS parameters applicable to the NTN network, for example, the QoS parameters corresponding to the service capable of meeting the time delay requirement are mapped to the QoS parameters aiming at the NTN network; in a different embodiment, for example, in a session establishment or modification process, or in a handover process, the first network device and/or the second network device may acquire mapped QoS parameters, where the mapped QoS parameters are applicable to the NTN network, so that handover success can be ensured, and overall performance of the system is improved.

Optionally, according to an embodiment of the present application, the NTN network to which the mapped QoS parameters apply includes at least one of the following cases:

● The non-ground network is an NTN accessed network;

● The backhaul network is an NTN network;

● A regenerative forwarding mode of the NTN network;

● Packet delay budget (Packet Delay Budget, PDB);

● Packet error rate (Packet Error Rate, PER);

● Priority ARP.

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

On the one hand, in different embodiments of the present application, the main body of performing mapping is different, and mapping may be performed locally at the terminal device, or may be performed by a second network function entity, for example, SMF (the mapped QoS parameters are sent to the terminal device), or may be performed at the second network device, that is, the target base station; on the other hand, in different embodiments of the present application, the mapping may be performed during the session establishment or modification process, or may be performed during the handover process. Various embodiments of the present application are each described in detail below.

< terminal device >

According to an 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, where the mapped QoS parameters are applicable to the NTN network.

According to an 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 an embodiment of the present application, optionally, before the terminal device accesses the NTN network using the mapped QoS parameters, the terminal device receives QoS parameters mapped by a network function entity (e.g. SMF) and applicable to the NTN network.

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

According to an embodiment of the present application, the terminal device may optionally use the mapped QoS parameters after moving from the ground network device to the NTN-accessed network device.

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

< network functional entity >

Optionally, according to an embodiment of the present application, the first network function entity comprises an AMF.

Optionally, according to an embodiment of the present application, the obtaining and forwarding, by the first network function entity, the mapped QoS parameters includes: the first network function entity receives the QoS parameters mapped by the second network function entity and applicable to the NTN network, and sends the mapped QoS parameters to the terminal equipment through an N1 message.

According to an 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 QoS parameters mapped by the second network function entity and applicable to the NTN network.

According to an 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 an NTN-accessed network device; the first network function entity obtains and forwards mapped QoS parameters, including: in the switching process, the first network functional entity receives an N2 session management message and sends the N2 session management message to the target network device, wherein the N2 session management message comprises QoS parameters which are mapped by a second network functional entity and are applicable to an NTN network.

Optionally, according to an embodiment of the present application, the second network functional entity comprises an SMF.

According to an embodiment of the present application, optionally, the second network function entity performs the mapping in at least one of the following cases: during session establishment, during session modification, during handover.

Optionally, before performing the mapping, the second network function receives QoS parameters sent by a third network function (e.g., PCF); the second network function entity may perform the mapping according to the received QoS parameters.

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

According to an 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 (for example, AMF).

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

Optionally, according to an embodiment of the present application, before performing the mapping, the method further comprises: the second network function entity receives a switching request message sent by the first network function entity, wherein the switching request message indicates that the target network equipment is network equipment accessed by NTN.

According to an embodiment of the present application, optionally, further comprising: in the switching process, the second network functional entity adds the mapped QoS parameters into an N2 session management message; the second network function entity sends the N2 session management message to the first network function entity.

< network device >

According to an embodiment of the present application, optionally, the first network device includes a network device to which the terminal device is currently connected; the second network device is a target network device, the second network device comprising an NTN-accessed network device.

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

According to an embodiment of the present application, optionally, the method further comprises: the second network device receives mapped QoS parameters sent by the first network device, the mapped QoS parameters being applicable to the NTN network.

According to an embodiment of the present application, optionally, the method further comprises: 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 an embodiment of the present application, optionally, the second network device performs the mapping during a handover preparation phase.

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

By utilizing at least one embodiment of the application, during the session establishment process or the switching process, the UE or the SMF can perform QoS parameter mapping, and the QoS parameters corresponding to the service which can meet the time delay requirement are mapped into the QoS parameters aiming at the NTN network, so that the success of the subsequent switching can be ensured; in addition, the embodiment of the application can also be applied to the scene that the UE in an idle state moves to a satellite coverage network, and establishes a session for communication by adopting the mapped QoS parameters under the satellite access network, so that the success of access can be ensured. Based on the above, the embodiment of the application can solve the problem that the continuity of service data cannot be ensured due to the larger satellite access time delay when the UE in the connected state or idle state moves from the ground network to the satellite coverage network, thereby achieving the purpose of improving the overall performance of the system.

The above describes, by way of embodiments, various implementations of the qos parameter processing method according to embodiments of the present application, which are not limited to the scenario in which NTN is used as an access network, but are applicable to both NTN as a backhaul network and a regenerative forwarding mode. Specific implementation procedures of the embodiments of the present application are described below by using a plurality of specific examples.

Example 1

In this embodiment, the network side performs QoS mapping and sends the QoS mapping to the UE. Fig. 11 schematically shows a flow chart of a session establishment procedure incorporating a QoS mapping mechanism for an NTN network, described in detail below.

1. And the UE accessed through the ground network sends a session establishment request message to the AMF, wherein the message comprises parameters such as a session identifier, a session type, SCC mode, DNN, S-NSSAI and the like.

AMF selects the appropriate SMF based on DNN, S-NSSAI and subscription data.

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

Smf selects PCF and UPF for the session.

And 6, the SMF establishes policy connection with the PCF to acquire PCC rule.

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

Optionally, the SMF performs QoS mapping for the NTN network according to the local configuration, and maps QoS parameters corresponding to QoS flows applicable under the NTN network for services that can meet the latency requirements of the NTN network.

The SMF invokes an N1/N2 messaging service to send session messages for the N1 and N2 interfaces to the AMF. Wherein the N1 message contains QoS parameters of QoS rule and QoS flow sent to the UE and mapped QoS parameters applicable to the NTN network, and the N2 message contains a QoS profile sent to the base station, wherein optionally, in some embodiments of the present application, the QoS profile may include mapped QoS parameters applicable to the NTN network; alternatively, in other embodiments of the present application, the QoS profile may not include mapped QoS parameters applicable to the NTN network.

10. And the base station establishes air interface resources according to the received parameters, and simultaneously, the base station transmits NAS information containing PDU session establishment acceptance to the UE, wherein the NAS information comprises mapped QoS parameters suitable for the NTN network.

11. The base station sends an N2 message reply to the AMF containing a list of QFI accepted by the base station and a list of QFI rejected.

The SMF distributes IPv6 address for the UE and sends the IPv6 address 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, the SMF sends the mapped QoS parameters applicable to the NTN network to the base station and the UE for storage, and in the process of ground access, the mapped QoS parameters are not used.

Example 2

In this embodiment, the UE and the network side map appropriate QoS parameters locally. Fig. 12 schematically shows a flow chart of a session establishment procedure incorporating a QoS mapping mechanism for an NTN network, described in detail below.

AMF selects the appropriate SMF based on DNN, S-NSSAI and subscription data.

Smf selects PCF and UPF for the session.

And 6, the SMF establishes policy connection with the PCF to acquire PCC rule.

The SMF performs QoS mapping for the NTN network according to the QoS parameters obtained from the PCF, and maps out the QoS parameters applicable under the NTN network for the QoS parameters of the QoS flows corresponding to the service which can meet the delay requirement of the NTN network.

The SMF performs QoS mapping for the NTN network according to the local configuration, and maps out QoS parameters corresponding to the QoS flows applicable under the NTN network for the QoS parameters corresponding to the service which can meet the delay requirement of the NTN network.

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

10. And the base station establishes air interface resources according to the received parameters, and simultaneously, the base station transmits NAS information containing PDU session establishment acceptance to the UE.

After receiving the PDU session establishment acceptance message, the UE maps the QoS parameters to QoS parameters suitable for the NTN network.

12. The base station sends an N2 message reply to the AMF containing a list of QFI accepted by the base station and a list of QFI rejected.

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

The SMF allocates IPv6 address for the UE and sends the IPv6 address to the UE through a 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 performing QoS mapping to obtain the mapped QoS parameters respectively) are applicable to the session modification procedure, that is, the SMF may send the mapped QoS parameters to the base station and the UE in the session modification procedure, or the UE performs mapping itself after receiving the session modification command. When the UE switches between the ground base stations, the ground source base station or SMF transmits the mapped QoS parameters to the ground destination base station for storage, and the mapped QoS parameters are not adopted in the ground access process.

In some embodiments of the present application, for the case that the base station decides to switch the UE to the base station accessed by the NTN network according to measurement reporting of the UE, different switching modes may be adopted, where the source base station or the SMF may send the QoS parameters corresponding to the PDU session of the UE and the mapped QoS parameters applicable to the NTN network to the target base station, where the target base station does not satisfy the QoS parameters of the current QoS flow of the UE, but the target base station may satisfy the mapped QoS parameters applicable to the NTN network, and the target base station should accept the switching of the PDU session.

In some embodiments of the present application, in a handover mode of an TN-NTN network based on Xn, if the source base station side does not have a mapped QoS parameter applicable to the NTN network, the target base station may perform QoS parameter mapping for the PDU session that needs to be handed over, that is, the target base station may perform mapping processing to obtain the QoS parameter applicable to the NTN network, so that the target base station accepts the PDU session that may meet the latency 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, and of course, it should be noted that, the network side and the UE may use the same rule for mapping QoS parameters, for example, the UE, the SMF may map to different AN PDBs or CN PDBs based on 5QI, and may use the same value for other parameters such as ARP or PER.

Example 3

In the present embodiment, qoS mapping is performed during a handover in the N2 mode, and fig. 13 schematically shows a flowchart for performing QoS mapping during a handover in the N2 mode, which is described in detail below.

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 a base station accessed by the NTN network and PDU session information that needs to be handed over, and so on.

And 3, the SMF confirms whether the corresponding PDU session can be switched, when the SMF receives the AMF message, and knows that the target base station is the base station accessed by the NTN network, the SMF can judge whether each QoS parameter of QoS flow included in the PDU session to be switched can meet the requirement (such as time delay requirement) of the NTN network, if so, the mapping can be performed, and if not, the mapping is not performed. Further, if mapping is possible, the SMF performs a mapping mechanism of QoS parameters, maps the QoS parameters of the original QoS flow to QoS parameters applicable to the NTN network, and sends the mapped QoS parameters to the target base station by placing the mapped QoS parameters in N2 session management Information (N2 SM Information).

The SMF judges whether the I-UPF needs to be inserted according to the position of the UE, and establishes an uplink between UPFs.

And 5, the SMF sends related N2 SM information to the AMF according to the success or failure of PDU session establishment, wherein the N2 SM information contains mapped QoS parameters or failure reason values.

And 6, the AMF transmits the message sent by the source base station and the N2MM/SM message to the target base station through a switching request, wherein the SM message comprises the mapped QoS parameters.

7. The target base station judges PDU conversation which can be switched and refused to be switched according to the slice and QoS flow which can be supported by the target base station and the mapped QoS parameter contained in the N2 SM message, and sends the result and N2 information to the AMF. And the target base station sets the DRB configuration to be sent to the UE by adopting the QoS parameters mapped in the N2 SM message.

The amf forwards the information received from the T-RAN to the SMF, which will initiate the PDU session modification procedure after the handover is completed for QoS Flows for which the T-RAN setup failed. For PDU sessions that reject handover, SMF selects either release session or deactivate session.

The SMF establishes an uplink transmission path between RAN and UPF for a PDU session capable of receiving handover, and if an indirect forwarding path needs to be established, the step establishes the indirect forwarding path from the source UPF to the target base station

AMF obtains information that needs to be sent to the source base station. Including PDU session setup messages and information of S-UPF for forwarding when an indirect forwarding path exists.

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

12. If the T-AMF cannot support certain PDU sessions for certain slicing reasons, the T-AMF triggers a PDU session release procedure. For other sessions, the T-AMF updates the PDU session information at the SMF.

SMF interacts with UPF to establish downlink data transmission path.

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; alternatively, after the handover is completed, the mapped QoS parameters may be sent to the UE through a NAS message.

According to at least one embodiment of the present application, it may be seen that the UE according to the embodiments of the present application may obtain mapped QoS parameters, for example, (1) may be obtained by mapping locally to the UE, (2) may be further mapped by the SMF and the mapped QoS parameters may be sent to the UE.

For the above (2), in particular, the SMF may join the QoS mapping mechanism for the NTN network during session establishment or during handover, including: the SMF maps the QoS parameters of the QoS flow corresponding to the service which can meet the time delay requirement of the NTN network to the QoS parameters applicable to the NTN network; the SMF sends the mapped QoS parameters to the base station and the UE; and the target base station receives corresponding session switching under the condition that the mapped QoS parameters can be met. By utilizing the embodiment of the application, the terminal equipment in the idle state or the connection state can be ensured to be successfully accessed after moving into the satellite coverage network, the continuity of service data is ensured, and the use experience of a user is improved.

The specific arrangements and implementations of the embodiments of the present application have been described above from a variety of angles by way of various embodiments. In correspondence with the processing method of at least one embodiment described above, the embodiment of the present application further provides a terminal device 100, referring to fig. 14, which includes:

an access module 110, configured to access the non-terrestrial network NTN network using mapped QoS parameters, where the mapped QoS parameters are applicable to the non-terrestrial network NTN network.

Optionally, the NTN network to which the mapped QoS parameters apply includes at least one of the following: the non-terrestrial network is an NTN access network, and the backhaul network is an NTN network or a regeneration and forwarding mode of the NTN network.

Optionally, the terminal device 100 further includes a mapping module, configured to map QoS parameters of QoS flows of services, where the mapped QoS parameters are applicable to the NTN network.

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

Optionally, the terminal device 100 further comprises a receiving module, configured to receive 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 an N1 message or by a handover command message during the handover procedure.

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

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

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

In correspondence with the processing method of at least one embodiment, the embodiment of the present application further provides a network function entity 200, which is denoted as a first network function entity, referring to fig. 15, including:

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

Optionally, the acquiring and processing module includes a first transceiver component, configured to receive QoS parameters mapped by the second network functional 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: and the receiving and transmitting module is used for receiving the N2 message and transmitting the N2 message to the network equipment currently accessed by the terminal equipment, wherein the N2 message comprises QoS parameters which are mapped by the second network functional entity and are applicable to the 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 an NTN-accessed network device;

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

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

In correspondence with the processing method of at least one embodiment, the embodiment of the present application further provides a network function entity 300, which is denoted as a second network function entity, and referring to fig. 16, the method includes:

the mapping module 310 is configured to map QoS parameters of the terminal device to obtain mapped QoS parameters, where the mapped QoS parameters are applicable to the NTN network.

Optionally, the mapping module performs the mapping in at least one of the following cases: during session establishment, during session modification, during handover.

Optionally, the network function entity 300 further includes: a receiving module, configured to receive QoS parameters 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.

Optionally, the third network functional entity comprises a PCF.

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

Optionally, the network function entity 300 further includes: and the first sending module is used for sending the mapped QoS parameters to the terminal equipment through the first network functional entity after the mapping module executes the mapping.

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

Optionally, the network function entity 300 further includes: and the receiving module is used for receiving a switching request message sent by the first network function entity before the mapping module executes the mapping, wherein the switching request message indicates that the target network equipment is network equipment accessed by NTN.

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

In correspondence with the processing method of at least one embodiment, the embodiment of the present application further provides a network device 400, which is denoted as a first network device, referring to fig. 17, including:

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

a sending module 420, configured to send the received mapped QoS parameters to the second network device.

Optionally, the second network functional entity comprises an SMF.

In correspondence with the processing method of at least one embodiment, the embodiment of the present application further provides a network device 500, which is denoted as a second network device, referring to fig. 18, including:

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

Optionally, the network device 500 further comprises 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 QoS parameters of the terminal device, where the mapped QoS parameters are applicable to the NTN network.

Optionally, the mapping module performs the mapping during a handover preparation phase.

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

Optionally, the second network device comprises an NTN-accessed network device.

Optionally, the network function entity comprises an SMF.

The terminal device 100, the network function entities 200, 300 and the network devices 400, 500 in this embodiment of the present application can implement the corresponding functions of the devices in the foregoing method embodiments, and the flow, the function, the implementation manner and the beneficial effects corresponding to each module (sub-module, unit or component, etc.) in the terminal device 100, the network function entity 200, 300 and the network devices 400, 500 may refer to the corresponding descriptions in the foregoing method embodiments, which are not repeated herein.

It should be noted that, regarding the functions described in the terminal device 100, the network functional entities 200, 300, and the respective modules (sub-modules, units, or components, etc.) in the network devices 400, 500 in this embodiment of the present application, the functions may be implemented by different modules (sub-modules, units, or components, etc.), or may be implemented by the same module (sub-module, unit, component, etc.), for example, the first sending module and the second sending module may be different modules, or may be the same module, and all the functions thereof in the embodiments of the present application may be implemented. In addition, the transmitting module and the receiving module in the embodiments of the present application may be implemented by a transceiver of the device, and some or all of the remaining modules may be implemented by a processor of the device.

Fig. 19 is a schematic block 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 may 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 further comprise a memory 620. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the methods in embodiments of the present application.

The memory 620 may be a separate device from the processor 610 or may be integrated into 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, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

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

Optionally, the communication device 600 may be a network device in the embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

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

Fig. 20 is a schematic block 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 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

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

Wherein the memory 720 may be a separate device from the processor 710 or may be integrated into the processor 710.

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

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

Optionally, the chip may be applied to a network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to a terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

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

The processors mentioned above may be general purpose processors, digital signal processors (digital signal processor, DSP), off-the-shelf programmable gate arrays (field programmable gate array, FPGA), application specific integrated circuits (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.

The memory mentioned above may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM).

It should be understood that the above memory is exemplary but not limiting, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being 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, the communication system 800 comprising a terminal device 810 and a network device 820.

Wherein 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. For brevity, the description is omitted here.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may 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 loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working processes of the above-described systems, apparatuses and units may refer to corresponding processes in the foregoing method embodiments, which are not described herein again.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A quality of service parameter processing method, applied to a terminal device, the method comprising:

the terminal device uses the mapped QoS parameter to access the non-terrestrial network NTN network, and the mapped QoS parameter is applicable to the non-terrestrial network NTN network.
The method of claim 1, wherein the NTN network to which the mapped QoS parameters apply comprises at least one of:

the non-ground network is an NTN accessed network;

the backhaul network is an NTN network;

regeneration forwarding mode of NTN network.
The method according to claim 1 or 2, wherein before the terminal device accesses the NTN network using the mapped QoS parameters, the method further comprises: the terminal equipment maps the QoS parameters of the QoS flow of the service, and the mapped QoS parameters are applicable to the NTN network.
A method according to 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 accesses the NTN network using the mapped QoS parameters, the method further comprises: the terminal device receives QoS parameters mapped by the network function entity and applicable to the NTN network.
The method of claim 5, wherein the QoS parameters mapped by the network function entity are carried by an N1 message or by a handover command message during a handover procedure.
The method according to any one of claims 1-6, wherein,

the terminal device uses the mapped QoS parameters after moving from the ground network device to the network device accessed by the NTN.
The method according to 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 quality of service parameter processing method applied to a first network function entity, the method comprising:

the first network function entity obtains and forwards mapped QoS parameters applicable to the NTN network.
The method of claim 10, wherein the NTN network to which the mapped QoS parameters apply comprises at least one of:

the non-ground network is an NTN accessed network;

the backhaul network is an NTN network;

regeneration forwarding mode of NTN network.
The method according to claim 10 or 11, wherein,

the first network function entity obtains and forwards mapped QoS parameters, including: the first network function entity receives the QoS parameters mapped by the second network function entity and applicable to the NTN network, and sends the mapped QoS parameters to the terminal equipment through an N1 message.
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, wherein the N2 message comprises QoS parameters which are mapped by the second network function entity and are applicable to the NTN network.
The method of claim 10 or 11, further comprising:

the first network function entity sends a switching request message to a second network function entity, wherein the switching request message indicates that the target network equipment is network equipment accessed by NTN;

the first network function entity obtains and forwards mapped QoS parameters, including: in the switching process, the first network functional entity receives an N2 session management message and sends the N2 session management message to the target network device, wherein the N2 session management message comprises QoS parameters which are mapped by a second network functional entity and are applicable to an NTN network.
The method according to 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 quality of service parameter processing method applied to a second network function entity, the method comprising:

The second network function entity maps the QoS parameters of the terminal equipment to obtain mapped QoS parameters, and the mapped QoS parameters are applicable to the NTN network.
The method of claim 16, wherein the NTN network to which the mapped QoS parameters apply comprises at least one of:

the non-ground network is an NTN accessed network;

the backhaul network is an NTN network;

regeneration forwarding mode of NTN network.
The method of claim 16 or 17, wherein the second network function entity performs the mapping in at least one of the following cases: during session establishment, during session modification, during handover.
The method of any of claims 16-18, wherein prior to performing the mapping, the method further comprises:

the second network function entity receives QoS parameters sent by a 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.
The method according to any of claims 16-18, wherein the second network function entity performs the mapping according to a local configuration.
The method of any of claims 16-21, wherein after performing the mapping, the method further comprises: and the second network function entity sends the mapped QoS parameters to the terminal equipment through the first network function entity.
The method according to any one of claims 16-22, wherein,

and when the second network functional entity executes the mapping, mapping is performed based on different access network packet delay budgets AN-PDB or core network packet delay budgets CN-PDB corresponding to the 5 QI.
The method of claim 16 or 17, wherein prior to performing the mapping, the method further comprises: the second network function entity receives a switching request message sent by the first network function entity, wherein the switching request message indicates that the target network equipment is network equipment accessed by NTN.
The method of claim 24, further comprising:

in the switching process, the second network functional entity adds the mapped QoS parameters into an 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 quality of service parameter processing method applied to a first network device, the method comprising:

the first network equipment receives mapped QoS parameters, wherein the mapped QoS parameters are applicable to the NTN network, and the mapped QoS parameters comprise mapped QoS parameters sent by the ground network equipment and/or QoS parameters mapped by the second network functional entity;

the first network device sends the received mapped QoS parameters to the second network device.
The method of claim 27, wherein the NTN network to which the mapped QoS parameters apply comprises at least one of:

the non-ground network is an NTN accessed network;

the backhaul network is an NTN network;

regeneration forwarding mode of NTN network.
The method of claim 27 or 28, wherein the second network function entity comprises an SMF.
A quality of service parameter processing method applied to a second network device, the method comprising:

in case the terminal device accesses the second network device, the second network device uses mapped QoS parameters, which are applicable to the NTN network.
The method of claim 30, wherein the NTN network to which the mapped QoS parameters apply comprises at least one of:

The non-ground network is an NTN accessed network;

the backhaul network is an NTN network;

regeneration forwarding mode of NTN network.
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 mapped QoS parameters sent by the first network device, the mapped QoS parameters being 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 applicable to the NTN network.
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 handed over from the first network device to the second network device, the second network device uses the mapped QoS parameters.
The method of any of claims 30-36, wherein the second network device comprises an NTN-accessed network device.
The method of claim 32, wherein the network function entity comprises an SMF.
A terminal device, comprising:

an access module, configured to access a non-terrestrial network NTN network using a mapped QoS parameter, where the mapped QoS parameter is applicable to the non-terrestrial network NTN network.
The terminal device of claim 39, wherein the NTN network to which the mapped QoS parameters apply includes at least one of:

the non-ground network is an NTN accessed network;

the backhaul network is an NTN network;

regeneration forwarding mode of NTN network.
The terminal device of claim 39 or 40, further comprising:

and the mapping module is used for mapping the QoS parameters of the QoS flow of the service, and the mapped QoS parameters are applicable to the NTN network.
The terminal device of claim 41, wherein the mapping component performs the mapping upon receiving a session establishment accept message or a packet data unit PDU session modification command message.
The terminal device of claim 39 or 40, further comprising:

and 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 of claim 43, wherein the QoS parameters mapped by the network function are carried by an N1 message or by a handover command message during a handover procedure.
The terminal device of any of claims 39-44, wherein,

the terminal device uses the mapped QoS parameters after moving from the ground network device to the network device accessed by the NTN.
The terminal device of any 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.
The terminal device of claim 43 or 44, wherein the network function entity comprises a session management function, SMF.
A network function entity, denoted as a first network function entity, comprising:

and the acquisition processing module is used for acquiring and forwarding the mapped QoS parameters, wherein the mapped QoS parameters are applicable to the NTN network.
The network function entity of claim 48, wherein the NTN network to which the mapped QoS parameters apply comprises at least one of:

the non-ground network is an NTN accessed network;

the backhaul network is an NTN network;

regeneration forwarding mode of NTN network.
The network function entity of claim 48 or 49, wherein,

the acquisition processing module comprises a first transceiver component, which is used for receiving the QoS parameters mapped by the second network functional entity and applicable to the NTN network, and sending the mapped QoS parameters to the terminal equipment through an N1 message.
The network function entity of claim 48 or 49, further comprising:

and the receiving and transmitting module is used for receiving the N2 message and transmitting the N2 message to the network equipment currently accessed by the terminal equipment, wherein the N2 message comprises QoS parameters which are mapped by the second network functional entity and are applicable to the NTN network.
The network function entity of claim 48 or 49, further comprising:

a sending module, configured to send a handover request message to a second network function entity, where the handover request message indicates that the target network device is an NTN-accessed network device;

the acquisition processing module comprises a second transceiver component, and is configured to receive an N2 session management message and send the N2 session management message to the target network device in a handover process, where the N2 session management message includes QoS parameters mapped by a second network function entity and applicable to an NTN network.
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, denoted as a second network function entity, comprising:

the mapping module is used for mapping the QoS parameters of the terminal equipment to obtain mapped QoS parameters, and the mapped QoS parameters are applicable to the NTN network.
The network function entity of claim 54, wherein the NTN network to which the mapped QoS parameters apply comprises at least one of:

the non-ground network is an NTN accessed network;

the backhaul network is an NTN network;

regeneration forwarding mode of NTN network.
The network function entity of claim 54 or 55, wherein the mapping module performs the mapping in at least one of: during session establishment, during session modification, during handover.
The network function entity of any of claims 54-56, further comprising:

a receiving module, configured to receive QoS parameters 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 of any of claims 54-59, further comprising: and the first sending module is used for sending the mapped QoS parameters to the terminal equipment through the first network functional entity after the mapping module executes the mapping.
The network function entity of any one of claims 54-60, wherein,

and when the mapping module performs the mapping, 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 of claim 54 or 55, further comprising: and the receiving module is used for receiving a switching request message sent by the first network function entity before the mapping module executes the mapping, wherein the switching request message indicates that the target network equipment is network equipment accessed by NTN.
The network function entity of claim 62, further comprising:

an adding module, configured to add the mapped QoS parameter to an N2 session management message in a handover process;

and the second sending module is used for sending the N2 session management message to the first network functional 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, denoted as a first network device, comprising:

a receiving module, configured to receive a mapped QoS parameter, where the mapped QoS parameter is applicable to the NTN network, and the mapped QoS parameter includes a mapped QoS parameter sent by the ground network device and/or a mapped QoS parameter mapped by the second network function entity;

And the sending module is used for sending the received mapped QoS parameters to the second network equipment.
The network device of claim 65, wherein the NTN network to which the mapped QoS parameters apply comprises at least one of:

the non-ground network is an NTN accessed network;

the backhaul network is an NTN network;

regeneration forwarding mode of NTN network.
The network device of claim 65 or 66, wherein the second network function entity comprises an SMF.
A network device, denoted as a second network device, comprising:

an access module, configured to use a mapped QoS parameter in case the terminal device accesses the second network device, where the mapped QoS parameter is applicable to the NTN network.
The network device of claim 68, wherein the NTN network to which the mapped QoS parameters apply comprises at least one of:

the non-ground network is an NTN accessed network;

the backhaul network is an NTN network;

regeneration forwarding mode of NTN network.
The network device of claim 68 or 69, further comprising:

a first receiving module, configured to receive QoS parameters mapped by the network function entity and applicable to the NTN network.
The network device of claim 68 or 69, further comprising:

And a second receiving module, configured to receive a mapped QoS parameter sent by the first network device, where the mapped QoS parameter is applicable to the NTN network.
The network device of claim 68 or 69, further comprising:

and the mapping module is used for mapping the QoS parameters of the terminal equipment, and the mapped QoS parameters are applicable to 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 one of claims 68-73, wherein,

after a terminal device is handed over from the first network device to the second network device, the second network device uses the mapped QoS parameters.
The network device of any 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 for storing a computer program, the processor invoking and running the computer program stored in the memory to control the processor to cooperate with the transceiver to perform the method of any of claims 1-9.
A network function entity, comprising: a processor, a memory and a transceiver, the memory for storing a computer program, the processor invoking and running the computer program stored in the memory to control the processor to cooperate with the transceiver to perform the method of any of claims 10 to 26.
A network device, comprising: a processor, a memory and a transceiver, the memory for storing a computer program, the processor invoking and running the computer program stored in the memory to control the processor to cooperate with the transceiver to perform the method of any of claims 27 to 38.
A chip, comprising:

at least one processor circuit for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 38.
A computer readable storage medium storing a computer program, wherein,

the computer program causing 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 one of claims 1 to 38.
A computer program which causes a computer to perform the method of any one of claims 1 to 38.