WO2022236611A1 - 服务质量指示确定方法、装置、通信设备和存储介质 - Google Patents

服务质量指示确定方法、装置、通信设备和存储介质 Download PDF

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Publication number
WO2022236611A1
WO2022236611A1 PCT/CN2021/092855 CN2021092855W WO2022236611A1 WO 2022236611 A1 WO2022236611 A1 WO 2022236611A1 CN 2021092855 W CN2021092855 W CN 2021092855W WO 2022236611 A1 WO2022236611 A1 WO 2022236611A1
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WIPO (PCT)
Prior art keywords
backhaul link
satellite backhaul
transmitted
data flow
service
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PCT/CN2021/092855
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English (en)
French (fr)
Inventor
洪伟
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北京小米移动软件有限公司
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Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to EP21941187.3A priority Critical patent/EP4340446A1/en
Priority to CN202180001493.9A priority patent/CN115606242A/zh
Priority to PCT/CN2021/092855 priority patent/WO2022236611A1/zh
Publication of WO2022236611A1 publication Critical patent/WO2022236611A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/28—Flow control; Congestion control in relation to timing considerations
    • H04L47/283—Flow control; Congestion control in relation to timing considerations in response to processing delays, e.g. caused by jitter or round trip time [RTT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H04W28/0263—Traffic management, e.g. flow control or congestion control per individual bearer or channel involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Definitions

  • the present application relates to the technical field of wireless communication but is not limited to the technical field of wireless communication, and in particular relates to a method, a device, a communication device and a storage medium for determining a quality of service indication.
  • the data connection between the base station and the core network can be realized through a non-terrestrial network such as a satellite backhaul link (Satellite Backhaul), which can also be called a satellite backhaul.
  • a satellite backhaul link (Satellite Backhaul), which can also be called a satellite backhaul.
  • the satellite backhaul link has a large delay in the data transmission process.
  • the one-way delay of the satellite backhaul link established by the high-orbit (GEO) satellite can reach 270ms;
  • the one-way delay of the satellite return link established by the low-orbit (LEO) satellite can reach 21ms;
  • the one-way delay of the satellite return link established by the low LEO satellite at an altitude of 600 kilometers can reach 13ms.
  • the embodiments of the present disclosure provide a method, device, communication device and storage medium for determining a quality of service indication.
  • a method for determining a quality of service indication is provided, wherein the method is executed by a policy control function (PCF, Policy Control Function) of a core network, and the method includes:
  • PCF Policy Control Function
  • the determined data flow can be transmitted using a satellite backhaul link, including;
  • AF Application Function
  • the preconfigured transmission willing indication it is determined that the data flow can be transmitted by using the satellite backhaul link.
  • determining that the data flow can be transmitted using a satellite backhaul link includes:
  • the transmission willingness indication carried in the AF service request indicating willingness to transmit through the satellite backhaul link, determine that the data flow can be transmitted by using the satellite backhaul link;
  • the delay value carried in the AF service request being less than or equal to the transmission delay of the predetermined satellite backhaul link transmission data stream, it is determined that the data stream can be transmitted by using the satellite backhaul link.
  • the receiving the AF service request includes:
  • Protocol data unit PDU, Protocol Data Unit
  • AF service request is received.
  • the method also includes:
  • the session management function Session Management Function
  • sending an instruction to the AF that the data flow uses the satellite backhaul link The second indication information transmitted by the link; wherein, the AF service request is returned by the AF based on the second indication information.
  • the receiving the AF service request includes:
  • the method also includes:
  • UE User Equipment
  • an information transmission method is provided, wherein the method is executed by an AF of a core network, and the method includes:
  • the flow selects the quality of service indication corresponding to the same data flow service transmitted by the non-satellite backhaul link.
  • the sending the AF service request includes: sending the AF service request carrying a transmission willingness indication, wherein the transmission willingness indication is used to indicate that the data stream can be transmitted back through the satellite link transmission;
  • the sending the AF service request carrying the indication of willingness to transmit includes:
  • the sending the AF service request carrying the delay value of the data stream transmission using the satellite backhaul link includes:
  • a delay value for the data stream to be transmitted through the satellite backhaul link is determined.
  • the method also includes:
  • the sending the AF service request includes:
  • the sending the AF service request includes:
  • the AF service request is stored in the UDR through a Network Exposure Function (NEF, Network Exposure Function), wherein the transmission willing indication stored in the UDR is used for acquisition by the PCF.
  • NEF Network Exposure Function
  • the AF service request further includes: UE identification information, wherein the UE identification information is used to indicate the UE and/or UE group associated with the data flow.
  • an apparatus for determining a quality of service indication includes: a processing module, wherein,
  • the processing module is configured to determine that the data stream can be transmitted using a satellite backhaul link
  • the processing module is configured to, for the data flow that can be transmitted by using the satellite backhaul link, select the service quality indicator corresponding to the same data flow service transmitted by the non-satellite backhaul link.
  • the processing module is configured to perform the following operations:
  • the preconfigured transmission willing indication it is determined that the data flow can be transmitted by using the satellite backhaul link.
  • the data stream can be transmitted using a satellite backhaul link, including:
  • the transmission willingness indication carried in the AF service request indicating willingness to transmit through the satellite backhaul link, determine that the data flow can be transmitted by using the satellite backhaul link;
  • the delay value carried in the AF service request being less than or equal to the transmission delay of the predetermined satellite backhaul link transmission data stream, it is determined that the data stream can be transmitted by using the satellite backhaul link.
  • the receiving the AF service request includes:
  • the AF service request is received before the PDU session associated with the data flow is established.
  • processing module is further configured to perform the following operations:
  • processing module is further configured to perform the following operations
  • the processing module is further configured to perform the following operations to determine the UE and/or UE group associated with the data flow according to the UE identification information contained in the AF service request.
  • an information transmission device wherein the device includes: a transmission module, wherein,
  • the transmission module is configured to send an AF service request, wherein the AF service request is used for the PCF to determine that the data flow can be transmitted through the satellite backhaul link, and when it is determined that the data flow can be transmitted through the satellite backhaul link When transmitting over a non-satellite backhaul link, select a QoS indicator corresponding to the same data stream service as that transmitted over a non-satellite backhaul link for the data stream.
  • the transmission module is configured to perform the following operations:
  • the transmission module is further configured to perform the following operations:
  • the device also includes:
  • the processing module is configured to determine the delay value of the data stream that can be transmitted through the satellite backhaul link according to the service requirements of the data stream.
  • processing module is further configured to perform the following operations:
  • the transmission module is further configured to send instruction information indicating to remove the data flow to the core network.
  • the transmission module is further configured to perform the following operations: before the PDU session associated with the data flow is established, determine that the data flow is transmitted through the satellite backhaul link, and send the AF service request ;
  • the transmission module is further configured to perform the following operations:
  • the AF service request is stored in the UDR through the NEF, wherein the transmission willing indication stored in the UDR is used for acquisition by the PCF.
  • the AF service request further includes: UE identification information, wherein the UE identification information is used to indicate the UE and/or UE group associated with the data flow.
  • a communication device including a processor, a memory, and an executable program stored on the memory and capable of being run by the processor, wherein the processor runs the executable program When the program is executed, the steps of the method for determining the quality of service indication in the first aspect, or the information transmission method in any one of the second aspects are executed.
  • a storage medium on which an executable program is stored, wherein, when the executable program is executed by a processor, the method for determining a quality of service indication as described in the first aspect is implemented, or The steps of the information transmission method described in any one of the second aspect.
  • Embodiments of the present disclosure provide a quality of service indication determination method, device, communication device, and storage medium.
  • the PCF determines that the data flow can be transmitted using the satellite backhaul link; for the data flow that can be transmitted using the satellite backhaul link, select the service quality corresponding to the same data flow service as the non-satellite backhaul link transmission instruct. In this way, when the data flow can be transmitted using the satellite backhaul link, the PCF uses the non-satellite backhaul link to determine the quality of service indicator of the data flow.
  • Fig. 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
  • Fig. 2 is a schematic flowchart of a method for determining a quality of service indication according to an exemplary embodiment
  • Fig. 3 is a schematic flow diagram showing an AF sending an AF service request according to an exemplary embodiment
  • Fig. 4 is a schematic flowchart of an information transmission method according to an exemplary embodiment
  • Fig. 5 is a schematic flowchart of another method for determining a quality of service indication according to an exemplary embodiment
  • Fig. 6 is a block diagram of an information transmission device according to an exemplary embodiment
  • Fig. 7 is a block diagram of an apparatus for determining a quality of service indication or transmitting information according to an exemplary embodiment
  • Fig. 8 shows an AF request interaction process according to an exemplary embodiment.
  • first, second, third, etc. may use the terms first, second, third, etc. to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the embodiments of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, the word “if” as used herein may be interpreted as “at” or "when” or "in response to a determination.”
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several terminals 11 and several base stations 12 .
  • the terminal 11 may be a device that provides voice and/or data connectivity to the user.
  • the terminal 11 can communicate with one or more core networks via a radio access network (Radio Access Network, RAN), and the terminal 11 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or called a "cellular" phone) and a
  • the computer of the IoT terminal for example, may be a fixed, portable, pocket, hand-held, built-in computer or vehicle-mounted device.
  • Station For example, Station (Station, STA), subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote station (remote station), access point, remote terminal ( remote terminal), an access terminal (access terminal), a user device (user terminal), a user agent (user agent), a user device (user device), or a user terminal (user equipment, UE).
  • the terminal 11 may also be a device of an unmanned aerial vehicle.
  • the terminal 11 may also be a vehicle-mounted device, for example, a trip computer with a wireless communication function, or a wireless communication device connected externally to the trip computer.
  • the terminal 11 may also be a roadside device, for example, it may be a street lamp, a signal lamp, or other roadside devices with a wireless communication function.
  • the base station 12 may be a network side device in a wireless communication system.
  • the wireless communication system may be a fourth generation mobile communication technology (the 4th generation mobile communication, 4G) system, also known as a Long Term Evolution (LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system.
  • the wireless communication system may also be a next-generation system of the 5G system.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network, New Generation Radio Access Network).
  • the MTC system the MTC system.
  • the base station 12 may be an evolved base station (eNB) adopted in a 4G system.
  • the base station 12 may also be a base station (gNB) adopting a centralized and distributed architecture in the 5G system.
  • eNB evolved base station
  • gNB base station
  • the base station 12 adopts a centralized distributed architecture it generally includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
  • the centralized unit is provided with a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, radio link layer control protocol (Radio Link Control, RLC) layer, media access control (Media Access Control, MAC) layer protocol stack;
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC media access control
  • a physical (Physical, PHY) layer protocol stack is set in the unit, and the embodiment of the present disclosure does not limit the specific implementation manner of the base station 12 .
  • a wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as
  • the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a technical standard of a next-generation mobile communication network based on 5G.
  • an E2E (End to End, end-to-end) connection can also be established between the terminals 11.
  • V2V vehicle to vehicle, vehicle-to-vehicle
  • V2I vehicle to Infrastructure, vehicle-to-roadside equipment
  • V2P vehicle to pedestrian, vehicle-to-person communication in vehicle to everything (V2X) communication Wait for the scene.
  • the above wireless communication system may further include a network management device 13 .
  • the network management device 13 may be a core network device in the wireless communication system, for example, the network management device 13 may be a mobility management entity (Mobility Management Entity, MME).
  • MME Mobility Management Entity
  • the network management device can also be other core network devices, such as Serving GateWay (SGW), Public Data Network Gateway (Public Data Network GateWay, PGW), policy and charging rule functional unit (Policy and Charging Rules Function, PCRF) or Home Subscriber Server (Home Subscriber Server, HSS), etc.
  • SGW Serving GateWay
  • PGW Public Data Network Gateway
  • PCRF Policy and Charging Rules Function
  • HSS Home Subscriber Server
  • Executors involved in the embodiments of the present disclosure include, but are not limited to: user equipment (UE, User Equipment) such as mobile terminals that use cellular mobile communication network technology for wireless communication, and access network equipment such as base stations.
  • UE user equipment
  • User Equipment User Equipment
  • base stations access network equipment
  • 5QI is a scalar used to point to a 5G QoS characteristic parameter: such as default priority level (Default Priority Level), packet delay budget (PDB, Packet Delay Budget) and packet error rate (Packet Error Rate), etc. These characteristic parameters are used to control the QoS of data flow forwarding processing.
  • default priority level Default Priority Level
  • PDB Packet Delay Budget
  • Packet Error Rate Packet Error Rate
  • the PDB defines an upper bound on the delay between the UE and the User Plane Function (UPF) terminating the N6 interface.
  • 5QI is set for non-satellite backhaul links.
  • PDB needs to take into account the delay of additional satellite backhaul links.
  • GEO high-orbit
  • the disadvantage of adopting this method is that the gNB needs to support the newly defined 5QI.
  • Method 3 Configure CN PDB in SMF.
  • SMF indicates CN PDB for gNB.
  • the disadvantage of using this method is that when the satellite backhaul link is detected, the CN PDB needs to be dynamically indicated, which will affect both the SMF and the gNB.
  • the disadvantage of adopting this method is that the new 5QI does not conform to the existing 5QI model.
  • this exemplary embodiment provides a method for determining a quality of service indication.
  • the method for determining a quality of service indication can be applied to the PCF of the core network, including:
  • Step 201 Determine that the data stream can be transmitted using the satellite backhaul link
  • Step 202 For the data flow that can be transmitted by using the satellite backhaul link, select a service quality indicator corresponding to the same data flow service that is not transmitted by the satellite backhaul link.
  • the PCF can provide relevant policies for all mobility, UE access selection and PDU session that it is responsible for.
  • Determining that the data flow can be transmitted using the satellite backhaul link may include: the data flow can be transmitted using the satellite backhaul link, and the delay caused by the satellite backhaul link transmission can be accepted by the core network and the like.
  • the core network includes: 5G core network (5GC)
  • the PCF may determine that the data flow can be transmitted using the satellite backhaul link; or other network elements of the core network, such as the AF, may indicate to the PCF that the data flow can be transmitted using the satellite backhaul link.
  • the satellite backhaul link is the link between the core network and the access network. Therefore, the delay caused by the satellite backhaul link transmission will be added to the CN PDB.
  • the CN PDB represents the delay between any UPF terminating the N6 interface and the 5G-AN in the given PDB.
  • CN PDB does not affect the behavior of the base station.
  • the base station may include: gNB and so on. The gNB may not distinguish between data streams transmitted using satellite backhaul links and data streams transmitted using non-satellite backhaul links. Therefore, there is no need to inform the gNB whether the data flow is transmitted using the satellite backhaul link.
  • the PCF may determine the service quality indication of the data flow transmitted based on the satellite backhaul link.
  • the quality of service indication may include: 5QI.
  • the PCF may determine the QoS indication of the data stream transmitted based on the satellite backhaul link by using a manner of determining the QoS indication of the data stream of the non-satellite transmission link.
  • the standardized 5QI defined by 3GPP TS 23.501 can be used to determine the 5QI of the data stream transmitted based on the satellite backhaul link. That is, the PCF may determine the QoS indicator based on the data flow transmitted over the satellite backhaul link by using the QoS indicator determination policy of the non-satellite transmission link.
  • the service quality indicators of the two data flows can be the same, and adopt The QoS indicator corresponding to the data flow transmitted by the non-satellite backhaul link.
  • the delay caused by satellite backhaul link transmission will be added to CN PDB and will not affect the behavior of gNB on data flow.
  • the PCF can use the quality of service indicator determination method of the data flow of the non-satellite transmission link to determine the quality of the data flow based on the satellite backhaul link transmission. The quality of service indication.
  • the PCF uses the non-satellite backhaul link to determine the quality of service indicator of the data flow.
  • the base station it is no longer necessary for the base station to distinguish whether the data flow is The satellite backhaul link is used for transmission, and/or the base station updates 5QI and other quality of service indications according to whether the satellite backhaul link is used, which reduces the load of the base station.
  • the base station processes the QoS data flow, it can ignore whether the data flow is transmitted through the satellite backhaul link. Reduce base station load.
  • the determined data flow can be transmitted using a satellite backhaul link, including;
  • the preconfigured transmission willing indication it is determined that the data flow can be transmitted by using the satellite backhaul link.
  • the AF is used for interworking with the core network to provide services for users.
  • the AF may indicate that the data flow can be transmitted using the satellite backhaul link through an AF service request.
  • the PCF may determine that the data flow can be transmitted using the satellite backhaul link based on the AF service request.
  • the AF service request may carry indication information, directly indicating that the data flow can be transmitted using the satellite backhaul link.
  • the AF service request may also carry parameters for data stream transmission using the satellite backhaul link, such as the delay value of satellite backhaul link transmission, etc., and the PCF determines whether the data stream can be transmitted using the satellite backhaul link .
  • the PCF may determine the service quality indicator of the data flow.
  • the PCF may adopt a non-satellite transmission link quality of service indicator determination policy to determine the service quality indicator based on the data flow transmitted by the satellite backhaul link.
  • the indication of willingness to transmit may indicate that the data flow is transmitted using the satellite backhaul link.
  • the indication of willingness to transmit may be pre-configured in the PCF.
  • the transmission willing indication may be pre-configured in a Service Level Agreement (SLA, Service Level Agreement) of the PCF.
  • SLA Service Level Agreement
  • An SLA is an agreement between a carrier and a service provider.
  • the processing mode for the data flow transmitted by the satellite backhaul link may be determined by the operator and the service provider. For example, if the latency of satellite backhaul link transmissions is acceptable, an indication of willingness to transmit can be set in the SLA.
  • the PCF determines the quality of service indication of the data stream transmitted based on the satellite backhaul link according to the determination strategy of the service quality indication of the non-satellite transmission link.
  • the 5QI mode of related technologies is used to determine the use of satellite backhaul 5QI of the data stream transmitted by the link.
  • determining that the data flow can be transmitted using a satellite backhaul link includes:
  • the transmission willingness indication carried in the AF service request indicating willingness to transmit through the satellite backhaul link, determine that the data flow can be transmitted by using the satellite backhaul link;
  • the delay value carried in the AF service request being less than or equal to the transmission delay of the predetermined satellite backhaul link transmission data stream, it is determined that the data stream can be transmitted by using the satellite backhaul link.
  • the indication of willingness to transmit may indicate that the data flow is transmitted using the satellite backhaul link.
  • the AF may set a transmission willingness indication in the AF service request, and indicate to the PCF that the data flow is transmitted using the satellite backhaul link. In this case, the PCF no longer judges whether the data flow can be transmitted using the satellite backhaul link, but directly determines the policy based on the service quality indication of the non-satellite transmission link to determine the service based on the data flow transmitted by the satellite backhaul link quality indication.
  • the AF may also carry the delay value of data stream transmission using the satellite backhaul link in the AF service request.
  • the PCF determines whether the data flow is transmitted by using the satellite backhaul link.
  • the PCF can compare the delay value with the transmission delay of the predetermined satellite backhaul link transmission data flow, and if the delay value is less than or equal to the transmission delay of the predetermined satellite backhaul link transmission data flow, then determine whether the data flow
  • the satellite backhaul link is used for transmission, and then the quality of service indicator based on the data flow transmitted by the satellite backhaul link is determined according to the policy for determining the quality of service indicator of the non-satellite transmission link.
  • the transmission delay of the predetermined satellite backhaul link transmission data stream may be 1100 ms or the like.
  • the PCF may not determine the data flow 5QI if the delay value of the data flow carried in the AF service request is transmitted using the satellite backhaul link, which is greater than the transmission delay of the predetermined satellite backhaul link transmission data flow.
  • the AF sends the AF service request carrying the indication of willingness to transmit in response to determining that the delay value of the transmission of the data stream through the satellite backhaul link is less than or equal to a first delay threshold .
  • the AF may determine whether the data flow can be transmitted using the satellite backhaul link. Before the AF service request is sent to the PCF, the AF may compare the delay value with a first delay threshold.
  • the first delay threshold may be a delay value of satellite backhaul link transmission that the AF can bear.
  • the AF may consider the delay value acceptable, and may directly carry the transmission intention indication in the PCF, and instruct the PCF to determine the service quality indication.
  • the AF determines the delay value for the data stream to be transmitted through the satellite backhaul link according to the service requirements of the data stream.
  • the AF can determine the delay value for the data stream to be transmitted through the satellite backhaul link based on the service requirements of the data stream. And the delay value is sent to the PCF, and the PCF further determines whether the data flow can be transmitted using the satellite backhaul link.
  • the AF may compare the delay value required by the service of the data flow with the second delay threshold.
  • the second delay threshold may be a maximum delay value of satellite backhaul link transmission that the AF bears.
  • the AF may consider the delay value acceptable, and may directly indicate the willingness to transmit
  • the AF determines that the data flow cannot be transmitted through the satellite backhaul link in response to the service requirement of the data flow; and sends instruction information indicating removal of the data flow to the core network.
  • the failure of the data flow to be transmitted through the satellite backhaul link may include: the delay value of the data flow transmission through the satellite backhaul link is greater than the maximum delay value that the AF can bear.
  • the AF may consider the delay value to be unacceptable, and the AF may instruct the core network to remove the data flow from the QoS flow.
  • the receiving the AF service request includes:
  • the AF transmits the AF service request to the UDR through the NEF, and the specific steps for the NCF to obtain the AF service request are shown in Figure 3, including:
  • Step 300 PCF Subscribes to UDER of Service Specific Parameters
  • Step 301 AF generates an AF service request, including:
  • the service description is information for identifying a service to which a service parameter is applied.
  • the service description in the AF service request can be represented by a combination of DNN, S-NSSAI, AF service identifier and/or application identifier.
  • Service parameters indication of the willingness to transmit data streams through the satellite backhaul link.
  • the target UE or group of UEs are the UEs to which the service parameters will be sent. Individual UEs may be identified by GPSI or IP address/prefix or MAC address. A group of UEs may be identified by an external group identifier. If no identifier of the target UE or group of UEs is provided, the Service Parameters identified using the Service Description shall be passed to all UEs.
  • Step 302 AF sends AF service request to NEF.
  • Step 303 The NEF authorizes the service request and sends the AF service request to the UDR.
  • the UDR stores service parameters, ie, indicates the willingness of the target UE or UE group to perform data stream transmission through the satellite backhaul link of the service.
  • Step 304 NEF responds to AF.
  • Step 305 The UDR notifies the PCF of the update of the service parameters, that is, indicates the willingness to transmit the data stream through the satellite backhaul link.
  • the PCF When the PCF is notified of the satellite backhaul link for the application data flow, and if the transmission willingness indication for transmitting the data flow through the satellite backhaul link is set, the PCF adopts the 5QI policy of the application and non-satellite backhaul link to determine the pass The 5QI of the data stream transmitted by the satellite backhaul link.
  • the method also includes:
  • the AF service request may include UE identification information.
  • the UE identification information may include: GPSI or IP address/prefix or MAC address for identifying the UE.
  • the UE identification information may also include: an external group identifier for identifying the UE group, and the like.
  • the PCF may determine the UE and/or UE group associated with the data flow based on the UE identification information.
  • the UE and/or UE group associated with the data flow may include, but not limited to: the UE and/or UE group performing the data flow interaction.
  • Actions that the PCF may take for different UEs and/or UE groups may include but not limited to: setting different predetermined transmission delays of satellite backhaul link transmission data streams for different UEs and/or UE groups.
  • the receiving the AF service request includes:
  • the AF service request is received before the PDU session associated with the data flow is established.
  • the AF may generate an AF service request carrying a transmission willing indication before data stream transmission.
  • the AF can receive the delay value of any satellite backhaul link, therefore, the AF can receive any data stream passing through the satellite backhaul link.
  • the AF may indicate to the PCF before the PDU session of the data stream passing the satellite backhaul link is established.
  • the PCF adopts the 5QI policy of the application and non-satellite backhaul link to determine the 5QI of the data stream transmitted through the satellite backhaul link.
  • the method also includes:
  • the SMF may send the first indication information to the PCF, indicating to transmit the data flow through the satellite backhaul link.
  • the PCF may use the second indication information to notify the AF of the transmission of the application data flow through the satellite backhaul link. Based on existing solutions, the PCF can inform the AF to transmit the data stream through the satellite backhaul link.
  • Data flow can include business data flow (SDF, Service Data Flow) and so on.
  • the AF may update its delay requirement for the data flow, ie the delay value, in the AF service request.
  • the delay requirement for the data stream in the AF service request is less than or equal to the pre-transmission delay applicable to the satellite backhaul link (eg: 1100ms)
  • the PCF adopts the 5QI strategy of the application and non-satellite backhaul link to determine the pass The 5QI of the data stream transmitted by the satellite backhaul link.
  • the AF may also carry a transmission willingness indication in the AF service request, indicating the AF's willingness to transmit the data flow through the satellite backhaul link.
  • Transmission willingness refers to the delay value that can receive any satellite backhaul link from AF to PCF surface. If the transmission willingness indication is received, the PCF determines the 5QI of the data flow transmitted through the satellite backhaul link using the 5QI policy applied to the non-satellite backhaul link.
  • this exemplary embodiment provides a method for determining a quality of service indication.
  • the information transmission method can be applied to the AF of the core network, including:
  • Step 401 Send an AF service request, wherein the AF service request is used for the PCF to determine that the data flow can be transmitted through the satellite backhaul link, and when it is determined that the data flow can be transmitted through the satellite backhaul link, send The data flow selects the service quality indicator corresponding to the same data flow service transmitted by the non-satellite backhaul link.
  • the PCF can provide relevant policies for all mobility, UE access selection and PDU session that it is responsible for.
  • Determining that the data flow can be transmitted using the satellite backhaul link may include: the data flow can be transmitted using the satellite backhaul link, and the delay caused by the satellite backhaul link transmission can be accepted by the core network.
  • the core network includes: 5G core network (5GC)
  • the PCF may determine that the data flow can be transmitted using the satellite backhaul link; or other network elements of the core network, such as the AF, may indicate to the PCF that the data flow can be transmitted using the satellite backhaul link.
  • the satellite backhaul link is the link between the core network and the access network. Therefore, the delay caused by the satellite backhaul link transmission will be added to the CN PDB.
  • the CN PDB represents the delay between any UPF terminating the N6 interface and the 5G-AN in the given PDB.
  • CN PDB does not affect the behavior of the base station.
  • the base station may include: gNB and so on. The gNB may not distinguish between data streams transmitted using satellite backhaul links and data streams transmitted using non-satellite backhaul links. Therefore, there is no need to inform the gNB whether the data flow is transmitted using the satellite backhaul link.
  • the PCF may determine the service quality indication of the data flow transmitted based on the satellite backhaul link.
  • the quality of service indication may include: 5QI.
  • the PCF may determine the QoS indication of the data stream transmitted based on the satellite backhaul link by using a manner of determining the QoS indication of the data stream of the non-satellite transmission link.
  • the standardized 5QI defined by 3GPP TS 23.501 can be used to determine the 5QI of the data stream transmitted based on the satellite backhaul link. That is, the PCF may determine the QoS indicator based on the data flow transmitted over the satellite backhaul link by using the QoS indicator determination policy of the non-satellite transmission link.
  • the service quality indicators of the two data flows may be the same, and Use the non-satellite backhaul link to transmit the service quality indicator corresponding to the data flow.
  • the delay caused by satellite backhaul link transmission will be added to CN PDB and will not affect the behavior of gNB on data flow.
  • the PCF can use the quality of service indicator determination method of the data flow of the non-satellite transmission link to determine the quality of the data flow based on the satellite backhaul link transmission. The quality of service indication.
  • the PCF uses the non-satellite backhaul link to determine the quality of service indicator of the data flow.
  • the base station it is no longer necessary for the base station to distinguish whether the data flow is The satellite backhaul link is used for transmission, and/or the base station updates 5QI and other quality of service indications according to whether the satellite backhaul link is used, which reduces the load of the base station.
  • the base station processes the QoS data flow, it can ignore whether the data flow is transmitted through the satellite backhaul link. Reduce base station load.
  • the AF is used for interworking with the core network to provide services for users.
  • the AF may indicate that the data flow can be transmitted using the satellite backhaul link through an AF service request.
  • the PCF may determine that the data flow can be transmitted using the satellite backhaul link based on the AF service request.
  • the AF service request may carry indication information, directly indicating that the data flow can be transmitted using the satellite backhaul link.
  • the AF service request may also carry parameters for data stream transmission using the satellite backhaul link, such as the delay value of satellite backhaul link transmission, etc., and the PCF determines whether the data stream can be transmitted using the satellite backhaul link .
  • the PCF may determine the service quality indicator of the data flow.
  • the PCF may adopt a non-satellite transmission link quality of service indicator determination policy to determine the service quality indicator based on the data flow transmitted by the satellite backhaul link.
  • the sending the AF service request includes: sending the AF service request carrying a transmission willingness indication, wherein the transmission willingness indication is used to indicate that the data stream can be transmitted back through the satellite link transmission;
  • the indication of willingness to transmit may indicate that the data flow is transmitted using the satellite backhaul link.
  • the AF may set a transmission willingness indication in the AF service request, and indicate to the PCF that the data flow is transmitted using the satellite backhaul link. In this case, the PCF no longer judges whether the data flow can be transmitted using the satellite backhaul link, but directly determines the policy based on the service quality indication of the non-satellite transmission link to determine the service based on the data flow transmitted by the satellite backhaul link quality indication.
  • the AF may also carry the delay value of data stream transmission using the satellite backhaul link in the AF service request.
  • the PCF determines whether the data flow is transmitted by using the satellite backhaul link.
  • the PCF can compare the delay value with the transmission delay of the predetermined satellite backhaul link transmission data flow, and if the delay value is less than or equal to the transmission delay of the predetermined satellite backhaul link transmission data flow, then determine whether the data flow
  • the satellite backhaul link is used for transmission, and then the quality of service indicator based on the data flow transmitted by the satellite backhaul link is determined according to the policy for determining the quality of service indicator of the non-satellite transmission link.
  • the transmission delay of the predetermined satellite backhaul link transmission data stream may be 1100 ms or the like.
  • the PCF may not determine the data flow 5QI if the delay value of the data flow carried in the AF service request is transmitted using the satellite backhaul link, which is greater than the transmission delay of the predetermined satellite backhaul link transmission data flow.
  • the sending the AF service request carrying the indication of willingness to transmit includes:
  • the AF may determine whether the data flow can be transmitted using the satellite backhaul link. Before the AF service request is sent to the PCF, the AF may compare the delay value with a first delay threshold.
  • the first delay threshold may be a delay value of satellite backhaul link transmission that the AF can bear.
  • the AF may consider the delay value acceptable, and may directly carry the transmission intention indication in the PCF, and instruct the PCF to determine the service quality indication.
  • the sending the AF service request carrying the delay value of the data stream transmission using the satellite backhaul link includes:
  • a delay value for the data stream to be transmitted through the satellite backhaul link is determined.
  • the AF can determine the delay value for the data stream to be transmitted through the satellite backhaul link based on the service requirements of the data stream. And the delay value is sent to the PCF, and the PCF further determines whether the data flow can be transmitted using the satellite backhaul link.
  • the AF may compare the delay value required by the service of the data flow with the second delay threshold.
  • the second delay threshold may be a maximum delay value of satellite backhaul link transmission that the AF bears.
  • the AF may consider the delay value acceptable, and may directly indicate the willingness to transmit
  • the method also includes:
  • the failure of the data flow to be transmitted through the satellite backhaul link may include: the delay value of the data flow transmission through the satellite backhaul link is greater than the maximum delay value that the AF can bear.
  • the AF may consider the delay value to be unacceptable, and the AF may instruct the core network to remove the data flow from the QoS flow.
  • the sending the AF service request includes:
  • the AF service request is stored in the UDR through the NEF, wherein the transmission willing indication stored in the UDR is used for acquisition by the PCF.
  • the AF transmits the AF service request to the UDR through the NEF, and the specific steps for the NCF to obtain the AF service request are shown in Figure 3, including:
  • Step 300 PCF Subscribes to UDER of Service Specific Parameters
  • Step 301 AF generates an AF service request, including:
  • the service description is information for identifying a service to which a service parameter is applied.
  • the service description in the AF service request can be represented by a combination of DNN, S-NSSAI, AF service identifier and/or application identifier.
  • Service parameters indication of the willingness to transmit data streams through the satellite backhaul link.
  • the target UE or group of UEs are the UEs to which the service parameters will be sent. Individual UEs may be identified by GPSI or IP address/prefix or MAC address. A group of UEs may be identified by an external group identifier. If no identifier of the target UE or group of UEs is provided, the Service Parameters identified using the Service Description shall be passed to all UEs.
  • Step 302 AF sends AF service request to NEF.
  • Step 303 The NEF authorizes the service request and sends the AF service request to the UDR.
  • the UDR stores service parameters, ie, indicates the willingness of the target UE or UE group to perform data stream transmission through the satellite backhaul link of the service.
  • Step 304 NEF responds to AF.
  • Step 305 The UDR notifies the PCF of the update of the service parameters, that is, indicates the willingness to transmit the data stream through the satellite backhaul link.
  • the PCF When the PCF is notified of the satellite backhaul link for the application data flow, and if the transmission willingness indication for transmitting the data flow through the satellite backhaul link is set, the PCF adopts the 5QI policy of the application and non-satellite backhaul link to determine the pass The 5QI of the data stream transmitted by the satellite backhaul link.
  • the AF service request further includes: UE identification information, wherein the UE identification information is used to indicate the UE and/or UE group associated with the data flow.
  • the AF service request may include UE identification information.
  • the UE identification information may include: GPSI or IP address/prefix or MAC address used to identify the UE.
  • the UE identification information may also include: an external group identifier for identifying the UE group, and the like.
  • the PCF may determine the UE and/or UE group associated with the data flow based on the UE identification information.
  • the UE and/or UE group associated with the data flow may include, but not limited to: the UE and/or UE group performing the data flow interaction.
  • Actions that the PCF may take for different UEs and/or UE groups may include but not limited to: setting different predetermined transmission delays of satellite backhaul link transmission data streams for different UEs and/or UE groups.
  • the sending the AF service request includes:
  • the AF may generate an AF service request carrying a transmission willing indication before data stream transmission.
  • the AF can receive the delay value of any satellite backhaul link, therefore, the AF can receive any data stream passing through the satellite backhaul link.
  • the AF may indicate to the PCF before the PDU session of the data stream passing the satellite backhaul link is established.
  • the PCF adopts the 5QI policy of the application and non-satellite backhaul link to determine the 5QI of the data stream transmitted through the satellite backhaul link.
  • the SMF may send the first indication information to the PCF, indicating to transmit the data flow through the satellite backhaul link.
  • the PCF may use the second indication information to notify the AF of the transmission of the application data flow through the satellite backhaul link. Based on existing solutions, the PCF can inform the AF to transmit the data stream through the satellite backhaul link.
  • Data flow can include business data flow (SDF, Service Data Flow) and so on.
  • the AF may update its delay requirement for the data flow, ie the delay value, in the AF service request.
  • the delay requirement for the data stream in the AF service request is less than or equal to the pre-transmission delay applicable to the satellite backhaul link (eg: 1100ms)
  • the PCF adopts the 5QI strategy of the application and non-satellite backhaul link to determine the pass The 5QI of the data stream transmitted by the satellite backhaul link.
  • the AF may also carry a transmission willingness indication in the AF service request, indicating the AF's willingness to transmit the data flow through the satellite backhaul link.
  • Transmission willingness refers to the delay value that can receive any satellite backhaul link from AF to PCF surface. If the transmission willingness indication is received, the PCF determines the 5QI of the data flow transmitted through the satellite backhaul link using the 5QI policy applied to the non-satellite backhaul link.
  • the AF can execute the following solutions:
  • Solution 1 If the delay value caused by the satellite backhaul link of the ongoing data flow is unacceptable, AF can request the 5G core network to cancel the ongoing data flow, and the 5G core network will remove the data flow from the QoS flow .
  • Solution 2 If the delay value caused by the satellite backhaul link can be tolerated, AF can update the delay value of the data stream.
  • Option 1 Prior to data stream transmission, AF indicates to 5GC the indication of willingness to transmit via satellite backhaul link.
  • Option 2 The AF indicates to the 5GC the indication of willingness to transmit via the satellite backhaul link in the AF service request.
  • the AF can provide the UDR with the indication of the willingness to transmit through the satellite backhaul link through the NEF, or the indication of the willingness to transmit the transmission through the satellite backhaul link can be performed through a service level agreement (SLA, Service Level Agreement) instruct.
  • SLA Service Level Agreement
  • the SLA is an agreement between the operator and the service provider, and the SLA can be preconfigured in the PCF.
  • Step 300 UDE of PCF Subscription Service Specific Parameters
  • Step 301 AF generates an AF service request, including:
  • the service description is information for identifying a service to which a service parameter is applied.
  • the service description in the AF service request can be represented by a combination of DNN, S-NSSAI, AF service identifier and/or application identifier.
  • Service parameters indication of the willingness to transmit data streams through the satellite backhaul link.
  • the target UE or group of UEs are the UEs to which the service parameters will be sent. Individual UEs may be identified by GPSI or IP address/prefix or MAC address. A group of UEs may be identified by an external group identifier. If no identifier of the target UE or group of UEs is provided, the Service Parameters identified using the Service Description shall be passed to all UEs.
  • Step 302 AF sends AF service request to NEF.
  • Step 303 The NEF authorizes the service request and sends the AF service request to the UDR.
  • the UDR stores service parameters, ie, indicates the willingness of the target UE or UE group to perform data stream transmission through the satellite backhaul link of the service.
  • Step 304 NEF responds to AF.
  • Step 305 The UDR notifies the PCF of the update of the service parameters, that is, indicates the willingness to transmit the data stream through the satellite backhaul link.
  • the PCF When the PCF is notified of the satellite backhaul link for the application data flow, and if the willingness to transmit the data flow through the satellite backhaul link is set, the PCF adopts the 5QI policy of the application and non-satellite backhaul link to determine whether to pass the satellite backhaul link.
  • the 5QI of the backhaul link transmission data stream When the PCF is notified of the satellite backhaul link for the application data flow, and if the willingness to transmit the data flow through the satellite backhaul link is set, the PCF adopts the 5QI policy of the application and non-satellite backhaul link to determine whether to pass the satellite backhaul link.
  • the 5QI of the backhaul link transmission data stream The 5QI of the backhaul link transmission data stream.
  • PCF When PCF receives application data flow or SDF notification via satellite backhaul link, PCF will notify AF based on existing solutions.
  • the AF can update its delay requirement for the data stream in the AF Service Request.
  • the PCF adopts the 5QI strategy of the application and non-satellite backhaul link to determine to pass the satellite backhaul link 5QI of the transmitted data stream.
  • the AF may indicate in the AF request its willingness to transmit the data stream over the satellite backhaul link. If this indication is received, the PCF determines the 5QI of the data stream transmitted over the satellite backhaul link using the 5QI strategy for the application and non-satellite backhaul link.
  • the embodiment of the present invention also provides an apparatus for determining a quality of service indication, which is applied to a PCF of a core network.
  • the apparatus 100 for determining a quality of service indication includes: a processing module 110, wherein,
  • the processing module 110 is configured to determine that the data flow can be transmitted using a satellite backhaul link
  • the selection module 120 is configured to select, for the data flow that can be transmitted by using the satellite backhaul link, a quality of service indicator corresponding to the same data flow service that is transmitted by a non-satellite backhaul link.
  • the processing module 110 is configured to perform the following operations:
  • the determining that the data stream can be transmitted using the satellite backhaul link according to the AF service request includes:
  • the transmission willingness indication carried in the AF service request indicating willingness to transmit through the satellite backhaul link, determine that the data flow can be transmitted by using the satellite backhaul link;
  • the delay value carried in the AF service request being less than or equal to the transmission delay of the predetermined satellite backhaul link transmission data stream, it is determined that the data stream can be transmitted by using the satellite backhaul link.
  • the receiving the AF service request includes:
  • the AF service request is received before the PDU session associated with the data flow is established.
  • processing module 110 is further configured to perform the following operations:
  • processing module 110 is further configured to perform the following operations:
  • processing module 110 is further configured to perform the following operations:
  • the embodiment of the present invention also provides an information transmission device, which is applied in the AF of the core network.
  • the information transmission device 200 includes: a transmission module 210, wherein,
  • the transmission module 210 is configured to send an AF service request, wherein the AF service request is used for the PCF to determine that the data stream can be transmitted through the satellite backhaul link, and when it is determined that the data stream can be transmitted through the satellite backhaul link When transmitting over a non-satellite backhaul link, select a QoS indicator corresponding to the same data stream service as that transmitted over a non-satellite backhaul link for the data stream.
  • the transmission module 210 is configured to perform the following operations:
  • the transmission module 210 is further configured to perform the following operations:
  • the device 200 also includes:
  • the processing module 220 is configured to determine the delay value of the data stream that can be transmitted through the satellite backhaul link according to the service requirements of the data stream.
  • processing module 220 is further configured to perform the following operations:
  • the transmission module 210 is further configured to send indication information indicating removal of the data flow to the core network.
  • the transmission module 210 is further configured to perform the following operations:
  • the transmission module 210 is further configured to perform the following operations:
  • the AF service request is stored in the UDR through the NEF, wherein the transmission willing indication stored in the UDR is used for acquisition by the PCF.
  • the AF service request further includes: UE identification information, wherein the UE identification information is used to indicate the UE and/or UE group associated with the data flow.
  • the processing module 110, the transmission module 210 and the processing module 220 etc. may be controlled by one or more central processing units (CPU, Central Processing Unit), graphics processing units (GPU, Graphics Processing Unit), baseband processors (BP, baseband processor), Application Specific Integrated Circuit (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), Complex Programmable Logic Device (CPLD, Complex Programmable Logic Device), Field Programmable A programming gate array (FPGA, Field-Programmable Gate Array), a general-purpose processor, a controller, a microcontroller (MCU, Micro Controller Unit), a microprocessor (Microprocessor), or other electronic components are used to implement the aforementioned method.
  • CPU Central Processing Unit
  • GPU Graphics Processing Unit
  • BP baseband processor
  • ASIC Application Specific Integrated Circuit
  • DSP Programmable Logic Device
  • PLD Programmable Logic Device
  • CPLD Complex Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • Fig. 7 is a block diagram of an apparatus 3000 for determining a quality of service indication or transmitting information according to an exemplary embodiment.
  • the apparatus 3000 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • device 3000 may include one or more of the following components: processing component 3002, memory 3004, power supply component 3006, multimedia component 3008, audio component 3010, input/output (I/O) interface 3012, sensor component 3014, and a communication component 3016.
  • the processing component 3002 generally controls the overall operations of the device 3000, such as those associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 3002 may include one or more processors 3020 to execute instructions to complete all or part of the steps of the above method. Additionally, processing component 3002 may include one or more modules that facilitate interaction between processing component 3002 and other components. For example, processing component 3002 may include a multimedia module to facilitate interaction between multimedia component 3008 and processing component 3002.
  • the memory 3004 is configured to store various types of data to support operations at the device 3000 . Examples of such data include instructions for any application or method operating on device 3000, contact data, phonebook data, messages, pictures, videos, and the like.
  • the memory 3004 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power component 3006 provides power to various components of device 3000 .
  • Power components 3006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for device 3000 .
  • the multimedia component 3008 includes a screen that provides an output interface between the device 3000 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or a swipe action, but also detect duration and pressure associated with the touch or swipe operation.
  • the multimedia component 3008 includes a front camera and/or a rear camera. When the device 3000 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.
  • the audio component 3010 is configured to output and/or input audio signals.
  • the audio component 3010 includes a microphone (MIC), which is configured to receive external audio signals when the device 3000 is in operation modes, such as call mode, recording mode and voice recognition mode. Received audio signals may be further stored in memory 3004 or sent via communication component 3016 .
  • the audio component 3010 also includes a speaker for outputting audio signals.
  • the I/O interface 3012 provides an interface between the processing component 3002 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.
  • Sensor assembly 3014 includes one or more sensors for providing status assessments of various aspects of device 3000 .
  • the sensor component 3014 can detect the open/closed state of the device 3000, the relative positioning of components, such as the display and keypad of the device 3000, the sensor component 3014 can also detect a change in the position of the device 3000 or a component of the device 3000, the user Presence or absence of contact with device 3000, device 3000 orientation or acceleration/deceleration and temperature change of device 3000.
  • Sensor assembly 3014 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • the sensor assembly 3014 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 3014 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 3016 is configured to facilitate wired or wireless communication between the apparatus 3000 and other devices.
  • the device 3000 can access wireless networks based on communication standards, such as Wi-Fi, 2G or 3G, or a combination thereof.
  • the communication component 3016 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 3016 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wide Band (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wide Band
  • Bluetooth Bluetooth
  • apparatus 3000 may be programmed by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation for performing the methods described above.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component implementation for performing the methods described above.
  • the technical solutions of the embodiments of the present disclosure may be:
  • the satellite backhaul can be notified to the AF.
  • the AF can:
  • scheme 2 may include:
  • AF indicates to 5GC willingness to transmit via satellite backhaul prior to service start.
  • AF indicates to 5GC its willingness to transmit via satellite backhaul in AF Service Request.
  • option 1 includes: AF is either willing to transmit to UDR through satellite backhaul through NEF (for details, please refer to the explanation below), or it is stated in the SLA (Service Level Agreement) between the service provider and the PLMN mobile operator, And SLA can be pre-configured in PCF.
  • NEF Service Level Agreement
  • option 1 could include:
  • AF creates a request, which includes
  • Service description is information for identifying a service to which a service parameter is applied.
  • the Service Description in the AF Request can be represented by a combination of DNN and S-NSSAI, AF Service Identifier or Application Identifier.
  • Target UE or a group of UEs Target UE or a group of UEs.
  • a target UE or a group of UEs indicates the UEs to which the service parameters are to be delivered.
  • Individual UEs may be identified by GPSI or IP address/prefix or MAC address.
  • a group of UEs may be identified by an external group identifier. If no identifier of the target UE or group of UEs is provided, the service parameters identified by the service description shall be used to deliver the service parameters to any UE.
  • AF request is sent to NEF.
  • the NEF authorizes the service request and sends the request to the UDR, which stores the service parameters, ie indicates the willingness to transmit traffic over the served satellite backhaul for the target UE or group of UEs.
  • NEF responds to AF.
  • the UDR notifies the PCF of the update of the service parameters, ie indicates the willingness to transmit the traffic via the satellite backhaul.
  • the PCF When the PCF is notified of the satellite backhaul for application traffic or SDF, and if the willingness to transmit the traffic via satellite backhaul indication is set, the PCF will determine the 5QI for the non-satellite backhaul of the same service.
  • Option 2 could include: When PCF receives application traffic or SDF notification for satellite backhaul, it will notify AF based on existing solutions.
  • the AF can update its latency requirements for service traffic in the AF Request.
  • the PCF determines the 5QI for the non-satellite backhaul of the same service.
  • the AF may indicate its willingness to transmit services through the satellite backhaul in the AF request. If an indication is received, the PCF determines the 5QI for the non-satellite backhaul of the same service.
  • non-transitory computer-readable storage medium including instructions, such as the memory 3004 including instructions, which can be executed by the processor 3020 of the device 3000 to implement the above method.
  • the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, among others.

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Abstract

本公开实施例是关于信息传输方法、装置、通信设备和存储介质，策略控制功能(PCF)确定数据流能够采用卫星回传链路传输；对于能够采用所述卫星回传链路传输的所述数据流，选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。

Description

服务质量指示确定方法、装置、通信设备和存储介质 技术领域
本申请涉及无线通信技术领域但不限于无线通信技术领域，尤其涉及服务质量指示确定方法、装置、通信设备和存储介质。
背景技术
基站和核心网之间的数据连接可以通过非地面网络如卫星回传链路(Satellite Backhaul)等实现，卫星回传链路也可以称为卫星回程。相对地面网络，卫星回传链路在数据传输过程中具有较大的延时，例如：通过高轨道(GEO)卫星建立的卫星回传链路单程延时可以达到270ms；通过1200千米高度的低轨道(LEO)卫星建立的卫星回传链路单程延时可以达到21ms；通过600千米高度的低LEO卫星建立的卫星回传链路单程延时可以达到13ms。
发明内容
有鉴于此，本公开实施例提供了一种服务质量指示确定方法、装置、通信设备和存储介质。
根据本公开实施例的第一方面，提供一种服务质量指示确定方法，其中，所述方法被核心网的策略控制功能(PCF，Policy Control Function)执行，所述方法包括：
确定数据流能够采用卫星回传链路传输；
对于能够采用所述卫星回传链路传输的所述数据流，选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。
在一个实施例中，所述确定数据流能够采用卫星回传链路传输，包括；
接收应用功能(AF，Application Function)服务请求，并根据AF服务请求，确定所述数据流能够采用所述卫星回传链路传输；
或者，
根据预配置的传输意愿指示，确定所述数据流能够采用所述卫星回传链路传输。
在一个实施例中，所述根据AF服务请求，确定数据流能够采用卫星回传链路传输，包括：
根据所述AF服务请求携带的指示愿意通过所述卫星回传链路传输的传输意愿指示，确定数据流能够采用卫星回传链路传输；
或者，
根据所述AF服务请求携带的延时值小于或等于预定卫星回传链路传输数据流的传输延时，确定所述数据流能够采用所述卫星回传链路传输。
在一个实施例中，所述接收AF服务请求包括：
在所述数据流关联的协议数据单元(PDU，Protocol Data Unit)会话建立之前，接收所述AF服务请求。
在一个实施例中，所述方法还包括：
响应于接收到会话管理功能(SMF，Session Management Function)发送的指示所述数据流采用所述卫星回传链路传输的第一指示信息，向AF发送指示所述数据流采用所述卫星回传链路传输的第二指示信息；其中，所述AF服务请求，是所述AF基于所述第二指示信息返回的。
在一个实施例中，所述接收AF服务请求，包括：
从统一数据存储(UDR，Unified Data Repository)获取所述AF服务请求。
在一个实施例中，所述方法还包括：
根据所述AF服务请求包含的用户设备(UE，User Equipment)标识信 息，确定关联于所述数据流的UE和/或UE组。
根据本公开实施例的第二方面，提供一种信息传输方法，其中，所述方法被核心网的AF执行，所述方法包括：
发送AF服务请求，其中，所述AF服务请求，用于供PCF确定数据流能够通过卫星回传链路传输，并在确定所述数据流能够通过卫星回传链路传输时，对所述数据流选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。
在一个实施例中，所述发送AF服务请求，包括：发送携带有传输意愿指示的所述AF服务请求，其中，所述传输意愿指示，用于指示所述数据流能够通过所述卫星回传链路传输；
或者，
发送携带有所述数据流采用所述卫星回传链路传输的延时值的所述AF服务请求，其中，所述延时值，用于供所述PCF确定所述数据流是否能够采用所述卫星回传链路传输。
在一个实施例中，所述发送携带有传输意愿指示的所述AF服务请求，包括：
响应于确定所述数据流通过所述卫星回传链路传输的延时值小于或等于第一延时阈值，发送携带有所述传输意愿指示的所述AF服务请求。
在一个实施例中，所述发送携带有所述数据流采用所述卫星回传链路传输的延时值的AF服务请求，包括：
根据所述数据流的业务的需求，确定所述数据流能够通过卫星回传链路传输的延时值。
在一个实施例中，所述方法还包括：
响应于根据所述数据流的业务的需求，确定所述数据流不能够通过卫星回传链路传输；
向核心网发送指示移除所述数据流的指示信息。
在一个实施例中，所述发送AF服务请求，包括：
在所述数据流关联的PDU会话建立之前，确定所述数据流通过所述卫星回传链路传输，发送所述AF服务请求；
或者，
响应于接收到指示所述数据流通过所述卫星回传链路传输的第二指示信息，发送所述AF服务请求。
在一个实施例中，所述发送AF服务请求，包括：
通过网络开放功能(NEF，Network Exposure Function)将所述AF服务请求存储到UDR，其中，存储到所述UDR的所述传输意愿指示用于供PCF获取。
在一个实施例中，所述AF服务请求还包括：UE标识信息，其中，所述UE标识信息，用于指示关联于所述数据流的UE和/或UE组。
根据本公开实施例的第三方面，提供一种服务质量指示确定装置，其中，所述装置包括：处理模块，其中，
所述处理模块，被配置为确定数据流能够采用卫星回传链路传输；
且所述处理模块，被配置为对于能够采用所述卫星回传链路传输的所述数据流，选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。
在一个实施例中，所述处理模块被配置为执行以下操作：
接收AF服务请求，并根据AF服务请求，确定所述数据流能够采用所述卫星回传链路传输；
或者，
根据预配置的传输意愿指示，确定所述数据流能够采用所述卫星回传链路传输。
在一个实施例中，所述根据AF服务请求，确定数据流能够采用卫星回传链路传输，，包括：
根据所述AF服务请求携带的指示愿意通过所述卫星回传链路传输的传输意愿指示，确定数据流能够采用卫星回传链路传输；
或者，
根据所述AF服务请求携带的延时值小于或等于预定卫星回传链路传输数据流的传输延时，确定所述数据流能够采用所述卫星回传链路传输。
在一个实施例中，所述接收AF服务请求包括：
在所述数据流关联的PDU会话建立之前，接收所述AF服务请求。
在一个实施例中，所述处理模块还被配置为执行以下操作：
响应于接收到SMF发送的指示所述数据流采用所述卫星回传链路传输的第一指示信息，向AF发送指示所述数据流采用所述卫星回传链路传输的第二指示信息；其中，所述AF服务请求，是所述AF基于所述第二指示信息返回的。
在一个实施例中，所述处理模块还被配置为执行以下操作
从UDR获取所述AF服务请求。
在一个实施例中，所述处理模块还被配置为执行以下操作根据所述AF服务请求包含的UE标识信息，确定关联于所述数据流的UE和/或UE组。
根据本公开实施例的第四方面，提供一种信息传输装置，其中，所述装置包括：传输模块，其中，
所述传输模块，被配置为发送AF服务请求，其中，所述AF服务请求，用于供PCF确定数据流能够通过卫星回传链路传输，并在确定所述数据流能够通过卫星回传链路传输时，对所述数据流选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。
在一个实施例中，所述传输模块被配置为执行以下操作：
发送携带有传输意愿指示的所述AF服务请求，其中，所述传输意愿指示，用于指示所述数据流能够通过所述卫星回传链路传输；
或者，
发送携带有所述数据流采用所述卫星回传链路传输的延时值的所述AF服务请求，其中，所述延时值，用于供所述PCF确定所述数据流是否能够采用所述卫星回传链路传输。
在一个实施例中，所述传输模块还被配置为执行以下操作：
响应于确定所述数据流通过所述卫星回传链路传输的延时值小于或等于第一延时阈值，发送携带有所述传输意愿指示的所述AF服务请求。
在一个实施例中，所述装置还包括：
处理模块，被配置为根据所述数据流的业务的需求，确定所述数据流能够通过卫星回传链路传输的延时值。
在一个实施例中，所述处理模块还被配置为执行以下操作：
响应于根据所述数据流的业务的需求，确定所述数据流不能够通过卫星回传链路传输；
且所述传输模块还被配置为向核心网发送指示移除所述数据流的指示信息。
在一个实施例中，所述传输模块还被配置为执行以下操作在所述数据流关联的PDU会话建立之前，确定所述数据流通过所述卫星回传链路传输，发送所述AF服务请求；
或者，
响应于接收到指示所述数据流通过所述卫星回传链路传输的第二指示信息，发送所述AF服务请求。
在一个实施例中，所述传输模块还被配置为执行以下操作：
通过NEF将所述AF服务请求存储到UDR，其中，存储到所述UDR 的所述传输意愿指示用于供PCF获取。
在一个实施例中，所述AF服务请求还包括：UE标识信息，其中，所述UE标识信息，用于指示关联于所述数据流的UE和/或UE组。
根据本公开实施例的第五方面，提供一种通信设备装置，包括处理器、存储器及存储在存储器上并能够由所述处理器运行的可执行程序，其中，所述处理器运行所述可执行程序时执行如第一方面所述服务质量指示确定方法，或第二方面任一项所述信息传输方法的步骤。
根据本公开实施例的第六方面，提供一种存储介质，其上存储由可执行程序，其中，所述可执行程序被处理器执行时实现如第一方面所述服务质量指示确定方法，或第二方面任一项所述信息传输方法的步骤。
本公开实施例提供的服务质量指示确定方法、装置、通信设备以及存储介质。PCF确定数据流能够采用卫星回传链路传输；对于能够采用所述卫星回传链路传输的所述数据流，选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。如此，当数据流能够采用卫星回传链路传输时，由PCF采用非卫星回传链路传输的服务质量指确定数据流的服务质量指示，一方面，不再需要由基站来区分数据流是否采用卫星回传链路传输，和/或由基站根据是否采用卫星回传链路更新5G服务质量指示(5QI，5G Qulity of service Identity)等服务质量指示，降低了基站的负载。另一方面，基站在处理QoS数据流时，可以忽略数据流是否通过卫星回传链路传输。降低基站负载。再一方面，无需对5QI等服务质量指示模型进行改变，提高服务质量指示兼容性。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开实施例。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本 发明实施例，并与说明书一起用于解释本发明实施例的原理。
图1是根据一示例性实施例示出的一种无线通信系统的结构示意图；
图2是根据一示例性实施例示出的一种服务质量指示确定方法的流程示意图；
图3是根据一示例性实施例示出的AF发送AF服务请求流程示意图；
图4是根据一示例性实施例示出的一种信息传输方法的流程示意图；
图5是根据一示例性实施例示出的再一种服务质量指示确定方法的流程示意图；
图6是根据一示例性实施例示出的一种信息传输装置的框图；
图7是根据一示例性实施例示出的一种用于服务质量指示确定或信息传输的装置的框图；
图8是根据一示例性实施例示出一个AF请求交互流程。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类 型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
请参考图1，其示出了本公开实施例提供的一种无线通信系统的结构示意图。如图1所示，无线通信系统是基于蜂窝移动通信技术的通信系统，该无线通信系统可以包括：若干个终端11以及若干个基站12。
其中，终端11可以是指向用户提供语音和/或数据连通性的设备。终端11可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，终端11可以是物联网终端，如传感器设备、移动电话(或称为“蜂窝”电话)和具有物联网终端的计算机，例如，可以是固定式、便携式、袖珍式、手持式、计算机内置的或者车载的装置。例如，站(Station，STA)、订户单元(subscriber unit)、订户站(subscriber station)、移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点、远程终端(remote terminal)、接入终端(access terminal)、用户装置(user terminal)、用户代理(user agent)、用户设备(user device)、或用户终端(user equipment，UE)。或者，终端11也可以是无人飞行器的设备。或者，终端11也可以是车载设备，比如，可以是具有无线通信功能的行车电脑，或者是外接行车电脑的无线通信设备。或者，终端11也可以是路边设备，比如，可以是具有无线通信功能的路灯、信号灯或者其它路边设备等。
基站12可以是无线通信系统中的网络侧设备。其中，该无线通信系统可以是第四代移动通信技术(the 4th generation mobile communication，4G)系统，又称长期演进(Long Term Evolution，LTE)系统；或者，该无线通信系统也可以是5G系统，又称新空口(new radio，NR)系统或5G NR系统。或者，该无线通信系统也可以是5G系统的再下一代系统。其中，5G 系统中的接入网可以称为NG-RAN(New Generation-Radio Access Network，新一代无线接入网)。或者，MTC系统。
其中，基站12可以是4G系统中采用的演进型基站(eNB)。或者，基站12也可以是5G系统中采用集中分布式架构的基站(gNB)。当基站12采用集中分布式架构时，通常包括集中单元(central unit，CU)和至少两个分布单元(distributed unit，DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层、媒体访问控制(Media Access Control，MAC)层的协议栈；分布单元中设置有物理(Physical，PHY)层协议栈，本公开实施例对基站12的具体实现方式不加以限定。
基站12和终端11之间可以通过无线空口建立无线连接。在不同的实施方式中，该无线空口是基于第四代移动通信网络技术(4G)标准的无线空口；或者，该无线空口是基于第五代移动通信网络技术(5G)标准的无线空口，比如该无线空口是新空口；或者，该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
在一些实施例中，终端11之间还可以建立E2E(End to End，端到端)连接。比如车联网通信(vehicle to everything，V2X)中的V2V(vehicle to vehicle，车对车)通信、V2I(vehicle to Infrastructure，车对路边设备)通信和V2P(vehicle to pedestrian，车对人)通信等场景。
在一些实施例中，上述无线通信系统还可以包含网络管理设备13。
若干个基站12分别与网络管理设备13相连。其中，网络管理设备13可以是无线通信系统中的核心网设备，比如，该网络管理设备13可以是演进的数据分组核心网(Evolved Packet Core，EPC)中的移动性管理实体(Mobility Management Entity，MME)。或者，该网络管理设备也可以是其它的核心网设备，比如服务网关(Serving GateWay，SGW)、公用数据网网 关(Public Data Network GateWay，PGW)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)或者归属签约用户服务器(Home Subscriber Server，HSS)等。对于网络管理设备13的实现形态，本公开实施例不做限定。
本公开实施例涉及的执行主体包括但不限于：采用蜂窝移动通信网络技术进行无线通信的手机终端等用户设备(UE，User Equipment)，以及基站等接入网设备。
本公开实施例的一个应用场景为，5QI是一个标量，用于指向一个5G QoS特性参数：例如默认优先级别(Default Priority Level)、数据包延预算(PDB，Packet Delay Budget)和数据包错误率(Packet Error Rate)等，这些特性参数用于控制数据流流转发处理的QoS。
这里，PDB定义了UE和终止N6接口的用户面功能(UPF)之间延时的上限。5QI是针对非卫星回传链路设置的，当采用卫星回传链路时，PDB需要考虑到额外的卫星回传链路的延时的情况。
例如，当选择5QI值为9时，针对地面通信网络，PDB为300ms，针对通过高轨道(GEO)卫星建立的卫星回传链路单程延时270ms的情况，PDB为270+300＝570ms，超出了5QI＝9的PDB。
可以采用4种方式使得5QI能支持该卫星回传链路：
方式一：新定义一个PDB＝570ms的5QI。
采用该方式的缺点是：gNB需要支持这个新定义的5QI。
方式二：复用5QI＝10。gNB需要区分使用CN PDB＝20ms或者CN PDB＝271+20＝291ms。可以由gNB确定是否存在需要使用CN PDB＝291ms的卫星回传链路。例如，gNB可以通过本地配置，或通过已经识别的非卫星回传链路来判断是否存在卫星回传链路。
采用该方式的缺点是：需要由gNB来确定是否存在。要使用CN  PDB＝291ms的卫星回传链路
方式三：在SMF配置CN PDB，当使用卫星回传链路时，有SMF为gNB指示CN PDB。
采用该方式的缺点是：当检测到卫星回传链路时，由于需要动态指示CN PDB，会同时影响到SMF和gNB。
方式四：定义两个5QI＝9的PDB。分别用于卫星回传链路和非卫星回传链路。
采用该方式的缺点是：新的5QI不符合现有的5QI模型。
因此，如何针对卫星回传链路应用5QI，并减小对现有5QI模型和gNB的影响是亟待解决的问题。
如图2所示，本示例性实施例提供一种服务质量指示确定方法，服务质量指示确定方法可以应用于核心网的PCF中，包括：
步骤201：确定数据流能够采用卫星回传链路传输；
步骤202：对于能够采用所述卫星回传链路传输的所述数据流，选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。
核心网中，PCF可以为其负责的所有移动性，UE访问选择和PDU会话提供相关的策略。
确定数据流能够采用卫星回传链路传输，可以包括：数据流能够采用卫星回传链路传输，并且卫星回传链路传输引起的延时可以被核心网等接受。这里，核心网包括：5G核心网(5GC)
这里，可以由PCF确定数据流能够采用卫星回传链路传输；也可以由核心网的其他网元，如AF等，向PCF指示数据流能够采用卫星回传链路传输。
卫星回传链路是核心网与接入网之间的链路，因此，卫星回传链路传输引起的延时会加入CN PDB中。CN PDB表示任何终止N6接口的UPF 和给定PDB中的5G-AN之间的延时。5G通信中，CN PDB不影响基站的行为。这里，基站可以包括：gNB等。gNB可以不区分采用卫星回传链路传输的数据流和采用非卫星回传链路传输的数据流。因此，无需通知gNB数据流是否采用卫星回传链路传输。
这里，确定数据流能采用卫星回传链路传输后，可以由PCF确定基于卫星回传链路传输的数据流的服务质量指示。
在一个实施例中，针对5G蜂窝移动通信，服务质量指示可以包括：5QI。
PCF可以采用非卫星传输链路的数据流的服务质量指示确定方式，来确定基于卫星回传链路传输的数据流的所述服务质量指示。例如，可以采用3GPP TS 23.501定义的标准化5QI来确定基于卫星回传链路传输的数据流的5QI。即PCF可以采用非卫星传输链路的服务质量指示确定策略，来确定基于卫星回传链路传输的数据流的所述服务质量指示。
示例性的，卫星回传链路传输的数据流的数据流业务如果和非卫星回传链路传输的数据流的数据流业务一致，那么这两个数据流的服务质量指示可以相同，并采用非卫星回传链路传输数据流对应的服务质量指示。
卫星回传链路传输引起的延时会加入CN PDB中，并不会影响gNB对数据流的行为。当核心网如5GC可以接收卫星回传链路传输引起的延时时，PCF可以采用非卫星传输链路的数据流的服务质量指示确定方式，来确定基于卫星回传链路传输的数据流的所述服务质量指示。
如此，当数据流能够采用卫星回传链路传输时，由PCF采用非卫星回传链路传输的服务质量指确定数据流的服务质量指示，一方面，不再需要由基站来区分数据流是否采用卫星回传链路传输，和/或由基站根据是否采用卫星回传链路更新5QI等服务质量指示，降低了基站的负载。另一方面，基站在处理QoS数据流时，可以忽略数据流是否通过卫星回传链路传输。降低基站负载。再一方面，无需对5QI等服务质量指示模型进行改变，提 高服务质量指示兼容性。
在一个实施例中，所述确定数据流能够采用卫星回传链路传输，包括；
接收AF服务请求，并根据AF服务请求，确定所述数据流能够采用所述卫星回传链路传输；
或者，
根据预配置的传输意愿指示，确定所述数据流能够采用所述卫星回传链路传输。
这里，AF用于与核心网互通来为用户提供业务。AF可以通过AF服务请求的方式指示数据流能够采用所述卫星回传链路传输。
PCF可以基于AF服务请求确定数据流能够采用所述卫星回传链路传输。
AF服务请求中可以携带指示信息，直接指示数据流能够采用卫星回传链路传输。AF服务请求中也可以携带数据流采用所述卫星回传链路传输的参数，如卫星回传链路传输的延时值等，由PCF确定数据流是否能够采用所述卫星回传链路传输。
PCF确定数据流能够采用所述卫星回传链路传输，后可以确定数据流的服务质量指示。
示例性的，PCF可以采用非卫星传输链路的服务质量指示确定策略，来确定基于卫星回传链路传输的数据流的所述服务质量指示。
传输意愿指示可以指示数据流采用所述卫星回传链路传输。传输意愿指示可以预配置于PCF中。
例如，传输意愿指示可以预先配置于PCF的服务等级协议(SLA，Service Level Agreement)中。SLA是运营商与服务提供商之间的协议。可以由运营商与服务提供商确定针对采用所述卫星回传链路传输的数据流的处理方式。例如，如果可以接收卫星回传链路传输的延时，则可以在SLA 中设置传输意愿指示。PCF基于SLA中的传输意愿指示，根据非卫星传输链路的服务质量指示确定策略，确定基于卫星回传链路传输的数据流的服务质量指示，如采用相关技术的5QI模式确定采用卫星回传链路传输的数据流的5QI。
在一个实施例中，所述根据AF服务请求，确定数据流能够采用卫星回传链路传输，包括：
根据所述AF服务请求携带的指示愿意通过所述卫星回传链路传输的传输意愿指示，确定数据流能够采用卫星回传链路传输；
或者，
根据所述AF服务请求携带的延时值小于或等于预定卫星回传链路传输数据流的传输延时，确定所述数据流能够采用所述卫星回传链路传输。
传输意愿指示可以指示数据流采用所述卫星回传链路传输。AF可以在AF服务请求中设置传输意愿指示，向PCF指示数据流采用所述卫星回传链路传输。该情况下PCF不再判断数据流是否能够采用所述卫星回传链路传输，而是直接根据非卫星传输链路的服务质量指示确定策略，确定基于卫星回传链路传输的数据流的服务质量指示。
AF也可以在AF服务请求中携带数据流采用所述卫星回传链路传输的延时值。由PCF确定数据流是否采用所述卫星回传链路传输。PCF可以将该延时值与预定卫星回传链路传输数据流的传输延时进行比较，如果延时值小于或等于预定卫星回传链路传输数据流的传输延时，则确定数据流是否采用所述卫星回传链路传输，进而根据非卫星传输链路的服务质量指示确定策略，确定基于卫星回传链路传输的数据流的服务质量指示。这里，预定卫星回传链路传输数据流的传输延时可以是1100ms等。
在一个实施例中，如果AF服务请求中携带的数据流采用所述卫星回传链路传输的延时值，大于预定卫星回传链路传输数据流的传输延时，PCF 可以不对数据流确定5QI。
在一个实施例中，AF响应于确定所述数据流通过所述卫星回传链路传输的延时值小于或等于第一延时阈值，发送携带有所述传输意愿指示的所述AF服务请求。
这里，可以由AF决定数据流是否能够采用卫星回传链路传输。在AF服务请求发送给PCF之前，AF可以将延时值与第一延时阈值进行比较。第一延时阈值可以是AF能承受的卫星回传链路传输的延时值。
如果延时值小于或等于第一延时阈值，则AF可以认为该延时值可以接受，可以直接将传输意愿指示携带在PCF中，指示PCF确定服务质量指示。
在一个实施例中，AF根据所述数据流的业务的需求，确定所述数据流能够通过卫星回传链路传输的延时值。
AF可以基于数据流的业务的需求，确定数据流能够通过卫星回传链路传输的延时值。并将延时值发送给PCF，进一步由PCF确定数据流是否能够采用卫星回传链路传输。
在一个实施例中，在AF服务请求发送给PCF之前，AF可以将数据流的业务的需求的延时值与第二延时阈值进行比较。第二延时阈值可以是AF承受的卫星回传链路传输的最大延时值。
如果延时值小于或等于第二延时阈值，则AF可以认为该延时值可以接受，可以直接将传输意愿指示
在一个实施例中，AF响应于根据所述数据流的业务的需求，确定所述数据流不能够通过卫星回传链路传输；向核心网发送指示移除所述数据流的指示信息。
数据流不能够通过卫星回传链路传输可以包括：数据流通过卫星回传链路传输的延时值大于AF能承受的最大延时值。
示例性的，如果延时值大于第二延时阈值，则AF可以认为该延时值可 以不可接收，AF可以指示核心网将该数据流从QoS流中移除。
在一个实施例中，所述接收AF服务请求，包括：
从UDR获取所述AF服务请求。
AF通过NEF传输AF服务请求给UDR，并由NCF获取AF服务请求的具体步骤如图3所示，包括：
步骤300：PCF订阅服务特定参数的UDER
步骤301：AF生成AF服务请求，包括：
A、服务描述
服务描述是用于标识应用了服务参数的服务的信息。AF服务请求中的服务描述可以由DNN、S-NSSAI、AF服务标识符和/或应用程序标识符的组合表示。
B、服务参数：通过卫星回传链路进行数据流传输的传输意愿指示。
C、目标UE或UE组
目标UE或UE组是服务参数将被发送到的UE。可以通过GPSI或IP地址/前缀或MAC地址来标识各个UE。可以通过外部组标识符来标识UE组。如果未提供目标UE或UE组的标识符，则应使用服务描述标识的服务参数传递给所有UE。
步骤302：AF将AF服务请求发送给NEF。
步骤303：NEF授权服务请求，并将AF服务请求发送给UDR，UDR存储服务参数，即，指示目标UE或UE组通过服务的卫星回传链路进行数据流传输的意愿。
步骤304：NEF响应AF。
步骤305：UDR向PCF通知服务参数的更新，即指示通过卫星回传链路进行数据流传输的意愿。
当向PCF被通知针对应用数据流的卫星回传链路，并且如果设置了通 过卫星回传链路传输数据流的传输意愿指示，则PCF采用应用与非卫星回传链路的5QI策略确定通过卫星回传链路传输数据流的5QI。
在一个实施例中，所述方法还包括：
根据所述AF服务请求包含的UE标识信息，确定关联于所述数据流的UE和/或UE组。
如步骤301所示，AF服务请求可以包括UE标识信息。UE标识信息可以包括：用于标识UE的GPSI或IP地址/前缀或MAC地址等。UE标识信息也可以包括：用于标识UE组的外部组标识符等。
PCF可以基于UE标识信息确定数据流关联的UE和/或UE组。这里，数据流关联的UE和/或UE组，可以包括但不限于：进行该数据流交互的UE和/或UE组。
PCF针对不同UE和/或UE组可以采取的动作可以包括但不限于：为不同UE和/或UE组设置不同的预定卫星回传链路传输数据流的传输延时等。
在一个实施例中，所述接收AF服务请求包括：
在所述数据流关联的PDU会话建立之前，接收所述AF服务请求。
AF可以在数据流传输前发生携带有传输意愿指示的AF服务请求。
示例性的，AF可以接收任意卫星回传链路的延时值，因此，对于任意通过卫星回传链路的数据流AF均能接收。AF可以在通过卫星回传链路的数据流的PDU会话建立前向PCF进行指示。PCF接收到该AF服务请求后，针对后续通过卫星回传链路的数据流，PCF采用应用与非卫星回传链路的5QI策略确定通过卫星回传链路传输数据流的5QI。
在一个实施例中，所述方法还包括：
响应于接收到SMF发送的指示所述数据流采用所述卫星回传链路传输的第一指示信息，向AF发送指示所述数据流采用所述卫星回传链路传输的 第二指示信息；其中，所述AF服务请求，是所述AF基于所述第二指示信息返回的。
SMF可以向PCF发送第一指示信息，指示通过卫星回传链路传输数据流。当PCF收到通过卫星回传链路传输数据流通知时，PCF可以通过第二指示信息将通过卫星回传链路传输应用数据流通知AF。PCF可以基于现有解决方案通知AF通过卫星回传链路传输数据流。数据流可以包括业务数据流(SDF，Service Data Flow)等。
AF可以在AF服务请求中更新其对该数据流的延时要求，即延时值。当AF服务请求中对该数据流的延时要求小于或等于适用于卫星回传链路的预传输延时(如：1100ms)时，PCF采用应用与非卫星回传链路的5QI策略确定通过卫星回传链路传输数据流的5QI。
AF也可以在AF服务请求中携带传输意愿指示，指示AF通过卫星回传链路传输数据流的意愿。传输意愿指可以是AF向PCF表面可以接收任意卫星回传链路的延时值。如果接收到该传输意愿指示，PCF采用应用与非卫星回传链路的5QI策略确定通过卫星回传链路传输数据流的5QI。
如图4所示，本示例性实施例提供一种服务质量指示确定方法，信息传输方法可以应用于核心网的AF中，包括：
步骤401：发送AF服务请求，其中，所述AF服务请求，用于供PCF确定数据流能够通过卫星回传链路传输，并在确定所述数据流能够通过卫星回传链路传输时，对所述数据流选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。
核心网中，PCF可以为其负责的所有移动性，UE访问选择和PDU会话提供相关的策略。
确定数据流能够采用卫星回传链路传输，可以包括：数据流能够采用卫星回传链路传输，并且卫星回传链路传输引起的延时可以被核心网等接 受。这里，核心网包括：5G核心网(5GC)
这里，可以由PCF确定数据流能够采用卫星回传链路传输；也可以由核心网的其他网元，如AF等，向PCF指示数据流能够采用卫星回传链路传输。
卫星回传链路是核心网与接入网之间的链路，因此，卫星回传链路传输引起的延时会加入CN PDB中。CN PDB表示任何终止N6接口的UPF和给定PDB中的5G-AN之间的延时。5G通信中，CN PDB不影响基站的行为。这里，基站可以包括：gNB等。gNB可以不区分采用卫星回传链路传输的数据流和采用非卫星回传链路传输的数据流。因此，无需通知gNB数据流是否采用卫星回传链路传输。
这里，PCF确定数据流能采用卫星回传链路传输后，可以由PCF确定基于卫星回传链路传输的数据流的服务质量指示。
在一个实施例中，针对5G蜂窝移动通信，服务质量指示可以包括：5QI。
PCF可以采用非卫星传输链路的数据流的服务质量指示确定方式，来确定基于卫星回传链路传输的数据流的所述服务质量指示。例如，可以采用3GPP TS 23.501定义的标准化5QI来确定基于卫星回传链路传输的数据流的5QI。即PCF可以采用非卫星传输链路的服务质量指示确定策略，来确定基于卫星回传链路传输的数据流的所述服务质量指示。
示例性的，卫星回传链路传输的数据流的数据流业务如果和和非卫星回传链路传输的数据流的数据流业务一致，那么这两个数据流的服务质量指示可以相同，并采用非卫星回传链路传输数据流对应的服务质量指示。
卫星回传链路传输引起的延时会加入CN PDB中，并不会影响gNB对数据流的行为。当核心网如5GC可以接收卫星回传链路传输引起的延时时，PCF可以采用非卫星传输链路的数据流的服务质量指示确定方式，来确定基于卫星回传链路传输的数据流的所述服务质量指示。
如此，当数据流能够采用卫星回传链路传输时，由PCF采用非卫星回传链路传输的服务质量指确定数据流的服务质量指示，一方面，不再需要由基站来区分数据流是否采用卫星回传链路传输，和/或由基站根据是否采用卫星回传链路更新5QI等服务质量指示，降低了基站的负载。另一方面，基站在处理QoS数据流时，可以忽略数据流是否通过卫星回传链路传输。降低基站负载。再一方面，无需对5QI等服务质量指示模型进行改变，提高服务质量指示兼容性。
这里，AF用于与核心网互通来为用户提供业务。AF可以通过AF服务请求的方式指示数据流能够采用所述卫星回传链路传输。
PCF可以基于AF服务请求确定数据流能够采用所述卫星回传链路传输。
AF服务请求中可以携带指示信息，直接指示数据流能够采用卫星回传链路传输。AF服务请求中也可以携带数据流采用所述卫星回传链路传输的参数，如卫星回传链路传输的延时值等，由PCF确定数据流是否能够采用所述卫星回传链路传输。
PCF确定数据流能够采用所述卫星回传链路传输，后可以确定数据流的服务质量指示。
示例性的，PCF可以采用非卫星传输链路的服务质量指示确定策略，来确定基于卫星回传链路传输的数据流的所述服务质量指示。
在一个实施例中，所述发送AF服务请求，包括：发送携带有传输意愿指示的所述AF服务请求，其中，所述传输意愿指示，用于指示所述数据流能够通过所述卫星回传链路传输；
或者，
发送携带有所述数据流采用所述卫星回传链路传输的延时值的所述AF服务请求，其中，所述延时值，用于供所述PCF确定所述数据流是否能 够采用所述卫星回传链路传输。
传输意愿指示可以指示数据流采用所述卫星回传链路传输。AF可以在AF服务请求中设置传输意愿指示，向PCF指示数据流采用所述卫星回传链路传输。该情况下PCF不再判断数据流是否能够采用所述卫星回传链路传输，而是直接根据非卫星传输链路的服务质量指示确定策略，确定基于卫星回传链路传输的数据流的服务质量指示。
AF也可以在AF服务请求中携带数据流采用所述卫星回传链路传输的延时值。由PCF确定数据流是否采用所述卫星回传链路传输。PCF可以将该延时值与预定卫星回传链路传输数据流的传输延时进行比较，如果延时值小于或等于预定卫星回传链路传输数据流的传输延时，则确定数据流是否采用所述卫星回传链路传输，进而根据非卫星传输链路的服务质量指示确定策略，确定基于卫星回传链路传输的数据流的服务质量指示。这里，预定卫星回传链路传输数据流的传输延时可以是1100ms等。
在一个实施例中，如果AF服务请求中携带的数据流采用所述卫星回传链路传输的延时值，大于预定卫星回传链路传输数据流的传输延时，PCF可以不对数据流确定5QI。
在一个实施例中，所述发送携带有传输意愿指示的所述AF服务请求，包括：
响应于确定所述数据流通过所述卫星回传链路传输的延时值小于或等于第一延时阈值，发送携带有所述传输意愿指示的所述AF服务请求。
这里，可以由AF决定数据流是否能够采用卫星回传链路传输。在AF服务请求发送给PCF之前，AF可以将延时值与第一延时阈值进行比较。第一延时阈值可以是AF能承受的卫星回传链路传输的延时值。
如果延时值小于或等于第一延时阈值，则AF可以认为该延时值可以接受，可以直接将传输意愿指示携带在PCF中，指示PCF确定服务质量指示。
在一个实施例中，所述发送携带有所述数据流采用所述卫星回传链路传输的延时值的AF服务请求，包括：
根据所述数据流的业务的需求，确定所述数据流能够通过卫星回传链路传输的延时值。
AF可以基于数据流的业务的需求，确定数据流能够通过卫星回传链路传输的延时值。并将延时值发送给PCF，进一步由PCF确定数据流是否能够采用卫星回传链路传输。
在一个实施例中，在AF服务请求发送给PCF之前，AF可以将数据流的业务的需求的延时值与第二延时阈值进行比较。第二延时阈值可以是AF承受的卫星回传链路传输的最大延时值。
如果延时值小于或等于第二延时阈值，则AF可以认为该延时值可以接受，可以直接将传输意愿指示
在一个实施例中，所述方法还包括：
响应于根据所述数据流的业务的需求，确定所述数据流不能够通过卫星回传链路传输；
向核心网发送指示移除所述数据流的指示信息。
数据流不能够通过卫星回传链路传输可以包括：数据流通过卫星回传链路传输的延时值大于AF能承受的最大延时值。
示例性的，如果延时值大于第二延时阈值，则AF可以认为该延时值可以不可接收，AF可以指示核心网将该数据流从QoS流中移除。
在一个实施例中，所述发送AF服务请求，包括：
通过NEF将所述AF服务请求存储到UDR，其中，存储到所述UDR的所述传输意愿指示用于供PCF获取。
AF通过NEF传输AF服务请求给UDR，并由NCF获取AF服务请求的具体步骤如图3所示，包括：
步骤300：PCF订阅服务特定参数的UDER
步骤301：AF生成AF服务请求，包括：
A、服务描述
服务描述是用于标识应用了服务参数的服务的信息。AF服务请求中的服务描述可以由DNN、S-NSSAI、AF服务标识符和/或应用程序标识符的组合表示。
B、服务参数：通过卫星回传链路进行数据流传输的传输意愿指示。
C、目标UE或UE组
目标UE或UE组是服务参数将被发送到的UE。可以通过GPSI或IP地址/前缀或MAC地址来标识各个UE。可以通过外部组标识符来标识UE组。如果未提供目标UE或UE组的标识符，则应使用服务描述标识的服务参数传递给所有UE。
步骤302：AF将AF服务请求发送给NEF。
步骤303：NEF授权服务请求，并将AF服务请求发送给UDR，UDR存储服务参数，即，指示目标UE或UE组通过服务的卫星回传链路进行数据流传输的意愿。
步骤304：NEF响应AF。
步骤305：UDR向PCF通知服务参数的更新，即指示通过卫星回传链路进行数据流传输的意愿。
当向PCF被通知针对应用数据流的卫星回传链路，并且如果设置了通过卫星回传链路传输数据流的传输意愿指示，则PCF采用应用与非卫星回传链路的5QI策略确定通过卫星回传链路传输数据流的5QI。
在一个实施例中，所述AF服务请求还包括：UE标识信息，其中，所述UE标识信息，用于指示关联于所述数据流的UE和/或UE组。
如步骤301所示，AF服务请求可以包括UE标识信息。UE标识信息 可以包括：用于标识UE的GPSI或IP地址/前缀或MAC地址等。UE标识信息也可以包括：用于标识UE组的外部组标识符等。
PCF可以基于UE标识信息确定数据流关联的UE和/或UE组。这里，数据流关联的UE和/或UE组，可以包括但不限于：进行该数据流交互的UE和/或UE组。
PCF针对不同UE和/或UE组可以采取的动作可以包括但不限于：为不同UE和/或UE组设置不同的预定卫星回传链路传输数据流的传输延时等。
在一个实施例中，所述发送AF服务请求，包括：
在所述数据流关联的PDU会话建立之前，确定所述数据流通过所述卫星回传链路传输，发送所述AF服务请求；
或者，
响应于接收到指示所述数据流通过所述卫星回传链路传输的第二指示信息，发送所述AF服务请求。
AF可以在数据流传输前发生携带有传输意愿指示的AF服务请求。
示例性的，AF可以接收任意卫星回传链路的延时值，因此，对于任意通过卫星回传链路的数据流AF均能接收。AF可以在通过卫星回传链路的数据流的PDU会话建立前向PCF进行指示。PCF接收到该AF服务请求后，针对后续通过卫星回传链路的数据流，PCF采用应用与非卫星回传链路的5QI策略确定通过卫星回传链路传输数据流的5QI。
SMF可以向PCF发送第一指示信息，指示通过卫星回传链路传输数据流。当PCF收到通过卫星回传链路传输数据流通知时，PCF可以通过第二指示信息将通过卫星回传链路传输应用数据流通知AF。PCF可以基于现有解决方案通知AF通过卫星回传链路传输数据流。数据流可以包括业务数据流(SDF，Service Data Flow)等。
AF可以在AF服务请求中更新其对该数据流的延时要求，即延时值。当AF服务请求中对该数据流的延时要求小于或等于适用于卫星回传链路的预传输延时(如：1100ms)时，PCF采用应用与非卫星回传链路的5QI策略确定通过卫星回传链路传输数据流的5QI。
AF也可以在AF服务请求中携带传输意愿指示，指示AF通过卫星回传链路传输数据流的意愿。传输意愿指可以是AF向PCF表面可以接收任意卫星回传链路的延时值。如果接收到该传输意愿指示，PCF采用应用与非卫星回传链路的5QI策略确定通过卫星回传链路传输数据流的5QI。
以下结合上述任意实施例提供一个具体示例：
相关技术中，当存在卫星回传链路时，会通知AF。
AF接收到存在卫星回传链路的通知时，AF可以执行如下方案：
方案1：如果进行中的数据流的由卫星回传链路引起的延时值不可接收，AF可以请求5G核心网取消进行中的数据流，5G核心网会把数据流从QoS流中移除。
方案2：如果由卫星回传链路引起的延时值可以承受，AF可以更新数据流的延时值。
方案3：不影响5GC的行为。
需要指出，上述三个方案是并列的方案；其可以单独被执行，也可以结合在一起被支持。
选项1：在数据流传输之前，AF向5GC指示通过卫星回传链路进行传输的传输意愿指示。
选项2：AF在AF服务请求中向5GC指示通过卫星回传链路进行传输的传输意愿指示。
针对选项1的详细解释：
可以由AF通过NEF将通过卫星回传链路进行传输的传输意愿指示提 供给UDR，也可以将通过卫星回传链路进行传输的传输意愿指示可以通过服务等级协议(SLA，Service Level Agreement)进行指示。这里，SLA是运营商与服务提供商之间的协议，SLA可以在PCF中预配置。
AF通过NEF将通过卫星回传链路进行传输的传输意愿指示提供给UDR的具体步骤如图3所示，包括：
步骤300：PCF订阅服务特定参数的UDE
步骤301：AF生成AF服务请求，包括：
A、服务描述
服务描述是用于标识应用了服务参数的服务的信息。AF服务请求中的服务描述可以由DNN、S-NSSAI、AF服务标识符和/或应用程序标识符的组合表示。
B、服务参数：通过卫星回传链路进行数据流传输的传输意愿指示。
C、目标UE或UE组
目标UE或UE组是服务参数将被发送到的UE。可以通过GPSI或IP地址/前缀或MAC地址来标识各个UE。可以通过外部组标识符来标识UE组。如果未提供目标UE或UE组的标识符，则应使用服务描述标识的服务参数传递给所有UE。
步骤302：AF将AF服务请求发送给NEF。
步骤303：NEF授权服务请求，并将AF服务请求发送给UDR，UDR存储服务参数，即，指示目标UE或UE组通过服务的卫星回传链路进行数据流传输的意愿。
步骤304：NEF响应AF。
步骤305：UDR向PCF通知服务参数的更新，即指示通过卫星回传链路进行数据流传输的意愿。
当向PCF通知了针对应用数据流的卫星回传链路，并且如果设置了通 过卫星回传链路传输数据流的意愿指示，则PCF采用应用与非卫星回传链路的5QI策略确定通过卫星回传链路传输数据流的5QI。
针对选项2的详细解释：
当PCF收到通过卫星回传链路传输应用数据流或SDF通知时，PCF将基于现有解决方案通知AF。
AF可以在AF服务请求中更新其对该数据流的延时要求。当AF请求中对该数据流的延时要求小于适用于卫星回传链路的预定值(如：1100ms)时，PCF采用应用与非卫星回传链路的5QI策略确定通过卫星回传链路传输数据流的5QI。
备选地，AF可以在AF请求中指示其通过卫星回传链路传输数据流的意愿。如果接收到该指示，PCF采用应用与非卫星回传链路的5QI策略确定通过卫星回传链路传输数据流的5QI。
本发明实施例还提供了一种服务质量指示确定装置，应用于核心网的PCF中，如图5所示，所述服务质量指示确定装置100包括：处理模块110，其中，
所述处理模块110，被配置为确定数据流能够采用卫星回传链路传输；
且所述选择模块120，被配置为对于能够采用所述卫星回传链路传输的所述数据流，选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。
在一个实施例中，所述处理模块110被配置为执行以下操作：
为接收AF服务请求，并根据AF服务请求，确定所述数据流能够采用所述卫星回传链路传输；
或者，
为根据预配置的传输意愿指示，确定所述数据流能够采用所述卫星回传链路传输。
在一个实施例中，所述根据AF服务请求，确定所述数据流能够采用所述卫星回传链路传输，包括：
根据所述AF服务请求携带的指示愿意通过所述卫星回传链路传输的传输意愿指示，确定数据流能够采用卫星回传链路传输；
或者，
根据所述AF服务请求携带的延时值小于或等于预定卫星回传链路传输数据流的传输延时，确定所述数据流能够采用所述卫星回传链路传输。
在一个实施例中，所述接收AF服务请求包括：
在所述数据流关联的PDU会话建立之前，接收所述AF服务请求。
在一个实施例中，所述处理模块110还被配置为执行以下操作：
响应于接收到SMF发送的指示所述数据流采用所述卫星回传链路传输的第一指示信息，向AF发送指示所述数据流采用所述卫星回传链路传输的第二指示信息；其中，所述AF服务请求，是所述AF基于所述第二指示信息返回的。
在一个实施例中，所述处理模块110还被配置为执行以下操作：
从UDR获取所述AF服务请求。
在一个实施例中，所述处理模块110还被配置为执行以下操作：
根据所述AF服务请求包含的UE标识信息，确定关联于所述数据流的UE和/或UE组。
本发明实施例还提供了一种信息传输装置，应用于核心网的AF中，如图6所示，所述信息传输装置200包括：传输模块210，其中，
所述传输模块210，配置为发送AF服务请求，其中，所述AF服务请求，用于供PCF确定数据流能够通过卫星回传链路传输，并在确定所述数据流能够通过卫星回传链路传输时，对所述数据流选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。
在一个实施例中，所述传输模块210被配置为执行以下操作：
发送携带有传输意愿指示的所述AF服务请求，其中，所述传输意愿指示，用于指示所述数据流能够通过所述卫星回传链路传输；
或者，
发送携带有所述数据流采用所述卫星回传链路传输的延时值的所述AF服务请求，其中，所述延时值，用于供所述PCF确定所述数据流是否能够采用所述卫星回传链路传输。
在一个实施例中，所述传输模块210还被配置为执行以下操作：
响应于确定所述数据流通过所述卫星回传链路传输的延时值小于或等于第一延时阈值，发送携带有所述传输意愿指示的所述AF服务请求。
在一个实施例中，所述装置200还包括：
处理模块220，被配置为根据所述数据流的业务的需求，确定所述数据流能够通过卫星回传链路传输的延时值。
在一个实施例中，所述处理模块220还被配置为执行以下操作：
响应于根据所述数据流的业务的需求，确定所述数据流不能够通过卫星回传链路传输；
且所述传输模块210还被配置为向核心网发送指示移除所述数据流的指示信息。
在一个实施例中，所述传输模块210还被配置为执行以下操作：
在所述数据流关联的PDU会话建立之前，确定所述数据流通过所述卫星回传链路传输，发送所述AF服务请求；
或者，
响应于接收到指示所述数据流通过所述卫星回传链路传输的第二指示信息，发送所述AF服务请求。
在一个实施例中，所述传输模块210还被配置为执行以下操作：
通过NEF将所述AF服务请求存储到UDR，其中，存储到所述UDR的所述传输意愿指示用于供PCF获取。
在一个实施例中，所述AF服务请求还包括：UE标识信息，其中，所述UE标识信息，用于指示关联于所述数据流的UE和/或UE组。
在示例性实施例中，处理模块110、传输模块210和处理模块220等可以被一个或多个中央处理器(CPU，Central Processing Unit)、图形处理器(GPU，Graphics Processing Unit)、基带处理器(BP，baseband processor)、应用专用集成电路(ASIC，Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD，Programmable Logic Device)、复杂可编程逻辑器件(CPLD，Complex Programmable Logic Device)、现场可编程门阵列(FPGA，Field-Programmable Gate Array)、通用处理器、控制器、微控制器(MCU，Micro Controller Unit)、微处理器(Microprocessor)、或其他电子元件实现，用于执行前述方法。
图7是根据一示例性实施例示出的一种用于服务质量指示确定或信息传输的装置3000的框图。例如，装置3000可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图7，装置3000可以包括以下一个或多个组件：处理组件3002，存储器3004，电源组件3006，多媒体组件3008，音频组件3010，输入/输出(I/O)的接口3012，传感器组件3014，以及通信组件3016。
处理组件3002通常控制装置3000的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件3002可以包括一个或多个处理器3020来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件3002可以包括一个或多个模块，便于处理组件3002和其他组件之间的交互。例如，处理组件3002可以包括多媒体模块，以方 便多媒体组件3008和处理组件3002之间的交互。
存储器3004被配置为存储各种类型的数据以支持在装置3000的操作。这些数据的示例包括用于在装置3000上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器3004可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件3006为装置3000的各种组件提供电力。电源组件3006可以包括电源管理系统，一个或多个电源，及其他与为装置3000生成、管理和分配电力相关联的组件。
多媒体组件3008包括在装置3000和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件3008包括一个前置摄像头和/或后置摄像头。当装置3000处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件3010被配置为输出和/或输入音频信号。例如，音频组件3010包括一个麦克风(MIC)，当装置3000处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器3004或经由通信组件3016发送。在一些 实施例中，音频组件3010还包括一个扬声器，用于输出音频信号。
I/O接口3012为处理组件3002和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件3014包括一个或多个传感器，用于为装置3000提供各个方面的状态评估。例如，传感器组件3014可以检测到装置3000的打开/关闭状态，组件的相对定位，例如组件为装置3000的显示器和小键盘，传感器组件3014还可以检测装置3000或装置3000一个组件的位置改变，用户与装置3000接触的存在或不存在，装置3000方位或加速/减速和装置3000的温度变化。传感器组件3014可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件3014还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件3014还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件3016被配置为便于装置3000和其他设备之间有线或无线方式的通信。装置3000可以接入基于通信标准的无线网络，如Wi-Fi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件3016经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，通信组件3016还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置3000可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在一些可能的实现方式中，本公开实施例的技术方案可以为：
基于现有解决方案，可以向AF通知卫星回程(satellite backhaul)。
当收到卫星回程通知时，AF可以：
-方案1：如果卫星回程造成的延迟不可接受，则请求5GC取消正在进行的业务，并且5GC将基于现有解决方案从QoS流中删除该业务。
-方案2：如果可以承受由卫星回程引起的延迟，则用新值将延迟要求更新为5GC。
-方案3：不影响5GC行为。
需要指出，上述三个方案是并列的方案；其可以单独被执行，也可以结合在一起被支持。
本公开实施例中，方案2可以包括：
-选项1：AF向5GC指示在业务开始之前通过卫星回程进行传输的意愿。
-选项2：AF向5GC指示其在AF服务请求中通过卫星回程进行传输的意愿。
需要指出，上述两个选项是并列的方案；其可以单独被执行，也可以结合在一起被支持。
其中，选项1包括：AF要么愿意通过NEF通过卫星回程传输到UDR(具体可以参考以下的解释)，要么在服务提供商和PLMN移动运营商之间的SLA(服务级别协议)中进行了说明，并且SLA可以在PCF中预先配置。
如图8所示的，选项1可以包括：
0.PCF订阅服务特定参数的UDR
1.AF创建请求，其中包括
1)服务描述：服务描述是用于标识应用了服务参数的服务的信息。AF请求中的服务描述可以由DNN和S-NSSAI，AF服务标识符或应用程序 标识符的组合表示。
2)服务参数：指示通过卫星回程传输流量的意愿
3)目标UE或一组UE。
目标UE或一组UE指示服务参数将被递送到的UE。可以通过GPSI或IP地址/前缀或MAC地址来标识各个UE。可以通过外部组标识符来标识UE的组。如果未提供目标UE或一组UE的标识符，则应使用服务描述标识的服务将服务参数传递给任何UE。
2.AF请求被发送到NEF。
3.NEF授权服务请求，并将请求发送给UDR，UDR存储服务参数，即，指示针对目标UE或一组UE通过服务的卫星回程传输业务的意愿。
4.NEF响应AF。
5.UDR向PCF通知服务参数的更新，即指示通过卫星回程传输流量的意愿。
当向PCF通知了针对应用流量或SDF的卫星回程，并且如果设置了通过卫星回程传输流量的意愿指示，则PCF将确定用于同一服务的非卫星回程的5QI。
选项2可以包括：当PCF收到卫星回程的应用流量或SDF通知时，它将基于现有解决方案通知AF。AF可以在AF请求中更新其对服务业务的延迟要求。当AF请求中对服务业务的延迟要求小于适用于卫星回程的预定值(即1100ms)时，PCF确定用于相同服务的非卫星回程的5QI。可选的，AF可以在AF请求中指示其通过卫星回程传输业务的意愿。如果接收到指示，则PCF确定用于相同服务的非卫星回程的5QI。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器3004，上述指令可由装置3000的处理器3020执行以完成上述方法。例如，非临时性计算机可读存储介质可以是 ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明实施例的其它实施方案。本申请旨在涵盖本发明实施例的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明实施例的一般性原理并包括本公开实施例未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本发明实施例的真正范围和精神由下面的权利要求指出。
应当理解的是，本发明实施例并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本发明实施例的范围仅由所附的权利要求来限制。

Claims (19)

  1. 一种服务质量指示确定方法，其中，所述方法被策略控制功能PCF执行，所述方法包括：
    确定数据流能够采用卫星回传链路传输；
    对于能够采用所述卫星回传链路传输的所述数据流，选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。
  2. 根据权利要求1所述的方法，其中，所述确定数据流能够采用卫星回传链路传输，包括；
    接收应用功能AF服务请求，并根据AF服务请求，确定所述数据流能够采用所述卫星回传链路传输；
    或者，
    根据预配置的传输意愿指示，确定所述数据流能够采用所述卫星回传链路传输。
  3. 根据权利要求2所述的方法，其中，所述根据AF服务请求，确定数据流能够采用卫星回传链路传输，包括：
    根据所述AF服务请求携带的指示愿意通过所述卫星回传链路传输的传输意愿指示，确定数据流能够采用卫星回传链路传输；
    或者，
    根据所述AF服务请求携带的延时值小于或等于预定卫星回传链路传输数据流的传输延时，确定所述数据流能够采用所述卫星回传链路传输。
  4. 根据权利要求2所述的方法，其中，所述接收AF服务请求包括：
    在所述数据流关联的协议数据单元PDU会话建立之前，接收所述AF服务请求。
  5. 根据权利要求2所述的方法，其中，所述方法还包括：
    响应于接收到会话管理功能SMF发送的指示所述数据流采用所述卫星 回传链路传输的第一指示信息，向AF发送指示所述数据流采用所述卫星回传链路传输的第二指示信息；其中，所述AF服务请求，是所述AF基于所述第二指示信息返回的。
  6. 根据权利要求2所述的方法，其中，所述接收AF服务请求，包括：
    从统一数据存储UDR获取所述AF服务请求。
  7. 根据权利要求6所述的方法，其中，所述方法还包括：
    根据所述AF服务请求包含的用户设备UE标识信息，确定关联于所述数据流的UE和/或UE组。
  8. 一种信息传输方法，其中，所述方法被应用功能AF执行，所述方法包括：
    发送AF服务请求，其中，所述AF服务请求，用于供策略控制功能PCF确定数据流能够通过卫星回传链路传输，并在确定所述数据流能够通过卫星回传链路传输时，对所述数据流选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。
  9. 根据权利要求8所述的方法，其中，所述发送AF服务请求，包括：发送携带有传输意愿指示的所述AF服务请求，其中，所述传输意愿指示，用于指示所述数据流能够通过所述卫星回传链路传输；
    或者，
    发送携带有所述数据流采用所述卫星回传链路传输的延时值的所述AF服务请求，其中，所述延时值，用于供所述PCF确定所述数据流是否能够采用所述卫星回传链路传输。
  10. 根据权利要求9所述的方法，其中，所述发送携带有传输意愿指示的所述AF服务请求，包括：
    响应于确定所述数据流通过所述卫星回传链路传输的延时值小于或等于第一延时阈值，发送携带有所述传输意愿指示的所述AF服务请求。
  11. 根据权利要求9所述的方法，其中，所述发送携带有所述数据流采用所述卫星回传链路传输的延时值的AF服务请求，包括：
    根据所述数据流的业务的需求，确定所述数据流能够通过卫星回传链路传输的延时值。
  12. 根据权利要求9所述的方法，其中，所述方法还包括：
    响应于根据所述数据流的业务的需求，确定所述数据流不能够通过卫星回传链路传输；
    向核心网发送指示移除所述数据流的指示信息。
  13. 根据权利要求8所述的方法，其中，所述发送AF服务请求，包括：
    在所述数据流关联的协议数据单元PDU会话建立之前，确定所述数据流通过所述卫星回传链路传输，发送所述AF服务请求；
    或者，
    响应于接收到指示所述数据流通过所述卫星回传链路传输的第二指示信息，发送所述AF服务请求。
  14. 根据权利要求8至13任一项所述的方法，其中，所述发送AF服务请求，包括：
    通过网络开放功能NEF将所述AF服务请求存储到统一数据存储UDR，其中，存储到所述UDR的所述传输意愿指示用于供PCF获取。
  15. 根据权利要求14所述的方法，其中，
    所述AF服务请求还包括：用户设备UE标识信息，其中，所述UE标识信息，用于指示关联于所述数据流的UE和/或UE组。
  16. 一种服务质量指示确定装置，其中，所述装置包括：处理模块；其中，
    所述处理模块，被配置为确定数据流能够采用卫星回传链路传输；
    且所述处理模块还被配置为对于能够采用所述卫星回传链路传输的所 述数据流，选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。
  17. 一种信息传输装置，其中，所述装置包括：传输模块，其中，
    传输模块，被配置为发送AF服务请求，其中，所述AF服务请求，用于供策略控制功能PCF确定数据流能够通过卫星回传链路传输，并在确定所述数据流能够通过卫星回传链路传输时，对所述数据流选择与非卫星回传链路传输的相同的数据流业务所对应的服务质量指示。
  18. 一种通信设备装置，包括处理器、存储器及存储在存储器上并能够由所述处理器运行的可执行程序，其中，所述处理器运行所述可执行程序时执行如权利要求1至7任一项所述服务质量指示确定方法，或8至15任一项所述信息传输方法的步骤。
  19. 一种存储介质，其上存储由可执行程序，其中，所述可执行程序被处理器执行时实现如权利要求1至7任一项所述服务质量指示确定方法，或8至15任一项所述信息传输方法的步骤。
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