WO2022067699A1 - 业务数据流的传输方法、通信装置及通信系统 - Google Patents

业务数据流的传输方法、通信装置及通信系统 Download PDF

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Publication number
WO2022067699A1
WO2022067699A1 PCT/CN2020/119473 CN2020119473W WO2022067699A1 WO 2022067699 A1 WO2022067699 A1 WO 2022067699A1 CN 2020119473 W CN2020119473 W CN 2020119473W WO 2022067699 A1 WO2022067699 A1 WO 2022067699A1
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WO
WIPO (PCT)
Prior art keywords
service data
data flow
information
time
qos
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PCT/CN2020/119473
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English (en)
French (fr)
Inventor
马景旺
周彧
马川
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20955724.8A priority Critical patent/EP4210384A4/en
Priority to PCT/CN2020/119473 priority patent/WO2022067699A1/zh
Priority to CN202080105548.6A priority patent/CN116325899A/zh
Publication of WO2022067699A1 publication Critical patent/WO2022067699A1/zh
Priority to US18/191,211 priority patent/US20230239728A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5003—Managing SLA; Interaction between SLA and QoS
    • H04L41/5019—Ensuring fulfilment of SLA
    • 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
    • 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
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H04W28/12—Flow control between communication endpoints using signalling between network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/02—Capturing of monitoring data
    • H04L43/026—Capturing of monitoring data using flow identification

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method, a communication device, and a communication system for transmitting service data streams.
  • a service data flow (Service Data Flow, SDF) is mapped to a quality of service (Quality of Service, QoS) flow, and QoS is performed on the QoS flow by using a fixed QoS class identifier (QoS Class Identifier, QCI).
  • QCI QoS Class Identifier
  • some current services may have a large amount of data in some time periods and have high requirements on delay, while in other time periods, the amount of data is small and have low requirements on delay.
  • QoS control for such services to improve the transmission performance of the service data flow.
  • the present application provides a service data flow transmission method, communication device and communication system, which are used to provide a reasonable QoS guarantee mechanism for a single service data flow, so as to improve the transmission performance of the service data flow.
  • an embodiment of the present application provides a method for transmitting a service data stream, including: a user plane network element receives feature information of the service data stream and QoS information of the service data stream, and the feature of the service data stream is received.
  • the information is used to indicate the traffic characteristic information corresponding to different time slices of the service data flow in a time period, and the QoS information is used to indicate the QoS level identifiers QCI corresponding to the different time slices respectively;
  • the user The plane network element determines the first time slice corresponding to the data packet of the service data flow according to the characteristic information of the service data flow;
  • the user plane network element determines the first time slice corresponding to the data packet of the service data flow according to the first time slice
  • the data packet is sent by the QCI corresponding to the slice and the first time slice.
  • the user plane network element sends data packets.
  • the user plane network element may send data packets to the access network device through the interface between the user plane network element and the access network device, or the user plane network element may send data packets through an intermediate node. (For example, other user plane network elements, etc.) send the data packet to the access network device.
  • multiple QCIs are configured for a single service data flow, and corresponding QoS guarantees are performed for data packets in different time slices according to the corresponding QCIs, which realizes the flexibility of service data flow control and satisfies the requirements of a single service data flow.
  • the QoS control requirements of the flow in different time periods can improve the transmission performance of the service data flow.
  • the characteristic information includes a time period, at least two time slices corresponding to the time period, and respective bit rates corresponding to the at least two time slices
  • the QoS information includes QoS
  • the flow identifier QFI and the QCIs corresponding to the at least two time slices respectively, the QCIs corresponding to the at least two time slices are not exactly the same, and the service data flow has a mapping relationship with the QoS flow corresponding to the QFI; Determining, by the user plane network element, the first time slice corresponding to the data packet of the service data flow according to the characteristic information of the service data flow, comprising: the user plane network element according to the characteristic information of the service data flow and the first bit rate of the data packet of the service data stream, to determine a first time slice corresponding to the first bit rate among the at least two time slices.
  • the user plane network element can identify the bit rate of the data packet, and then determine the time slice corresponding to the bit rate, and then determine the time slice corresponding to the data packet. This method can quickly determine the time corresponding to the data packet. Fragmentation can improve data transmission capacity.
  • the user plane network element determines, according to the characteristic information of the service data flow and the first bit rate of the data packets of the service data flow, the time slice of the at least two time slices.
  • the first time slice corresponding to the first bit rate includes: the user plane network element determines, according to the feature information, the boundary of the time period where the data packet is located (may also be referred to as a starting point); The user plane network element determines, according to the at least two time slices corresponding to the time period, the bit rates corresponding to the at least two time slices respectively, and the first bit rate, the corresponding value of the first bit rate. the first time slice.
  • the user plane network element sends the data packet according to the first time slice corresponding to the data packet of the service data flow and the QCI corresponding to the first time slice, including: The user plane network element adds the QFI and the first QCI to the data packet, and sends the data packet carrying the QFI and the first QCI, where the first QCI is the at least two times The QCI corresponding to the first time slice among the QCIs corresponding to the slices respectively.
  • the user plane network element can carry the QCI corresponding to the data packet in the data packet for transmission, so that the receiving side network element can directly obtain the QCI corresponding to the data packet from the data packet, and based on the QCI
  • the data packet implements QoS control, which realizes the rapid determination of the QoS control policy corresponding to the data packet, and helps to improve the quality of data transmission.
  • the user plane network element adds the QFI and the first QCI to the header of the data packet.
  • the feature information of the business data flow comes from an application server; or, the feature information of the business data flow comes from a database, and the feature information of the business data flow in the database comes from an application server Or, the characteristic information of the service data flow comes from a session management network element, and the characteristic information of the service data flow in the session management network element comes from an application server.
  • an embodiment of the present application provides a method for transmitting a service data stream, including: an access network device receives feature information of a service data stream and QoS information of the service data stream, and the feature of the service data stream The information is used to indicate the traffic characteristic information corresponding to different time slices of the service data flow in a time period, and the QoS information is used to indicate the QoS level identifiers QCI corresponding to the different time slices respectively; The network access device determines, according to the feature information of the service data flow and the QoS information, configuration parameters corresponding to the data packets of the service data flow; the access network device sends the configuration parameters to the terminal device according to the configuration parameters. data pack.
  • multiple QCIs are configured for a single service data flow, and corresponding QoS guarantees are performed for data packets in different time slices according to the corresponding QCIs, which realizes the flexibility of service data flow control and satisfies the requirements of a single service data flow.
  • the QoS control requirements of the flow in different time periods can improve the transmission performance of the service data flow.
  • the characteristic information includes a time period, at least two time slices corresponding to the time period, and bit rates corresponding to the at least two time slices respectively
  • the QoS information includes QFI and the QCIs corresponding to the at least two time slices respectively, the QCIs corresponding to the at least two time slices are not exactly the same, and the service data flow has a mapping relationship with the QoS flow corresponding to the QFI; the connection
  • the network access device determines, according to the feature information of the service data flow and the QoS information, configuration parameters corresponding to the data packets of the service data flow, including: the access network device determines, according to the feature information and the QoS information of the service data flow, the access network device.
  • the access network device determines the at least two time slices.
  • the access network device determines the configuration parameter corresponding to the first QCI, which is the data of the service data stream Configuration parameters corresponding to the package.
  • the configuration parameters corresponding to the data packets can be quickly determined, and the data transmission capability can be improved.
  • the configuration parameters include one or more of the following information: sending rate, packet loss rate, packet delay budget, and priority.
  • the access network device determines, according to the reported channel state information CSI, the sending timing and subcarriers occupied by the data packet; the access network device sends the information to the terminal according to the configuration parameter.
  • Sending the data packet by the device includes: the access network device sends the data packet to the terminal device at the transmission timing and subcarrier occupied by the data packet according to the configuration parameter corresponding to the first QCI.
  • the access network device can determine the transmission timing and sub-carrier of the data packet based on the CSI reported by the terminal device, which can improve the data transmission efficiency.
  • the access network device sends configuration information to the terminal device, where the configuration information includes indication information and the time period, and the indication information is used to instruct the terminal device to report a channel
  • the period of the status information CSI is the same as the time period; the access network device receives the CSI from the terminal device.
  • the indication information is further used to instruct the terminal device to report the CSI at a first time period before the arrival of the data packet.
  • the access network device determines the arrival time of the data packet according to the time period; the access network device sends a second time period before the data packet arrives to the data packet.
  • the terminal equipment sends downlink control information DCI, where the DCI is used to instruct the terminal equipment to report CSI; the access network equipment receives the CSI from the terminal equipment.
  • the feature information of the business data flow comes from an application server; or, the feature information of the business data flow comes from a database, and the feature information of the business data flow in the database comes from an application server Or, the characteristic information of the service data flow comes from a session management network element, and the characteristic information of the service data flow in the session management network element comes from an application server.
  • an embodiment of the present application provides a method for transmitting a service data flow, including: an access network device receives a data packet of a quality of service (QoS) flow from a user plane network element, where a packet header of the data packet carries a quality of service (QoS) flow identifier The QFI and the QoS level identify the QCI, and the QFI is used to identify the QoS flow; the access network device sends the data packet to the terminal device according to the configuration parameter corresponding to the QCI.
  • QoS quality of service
  • the access network device receives QoS information of a service data flow from a session management network element, where the QoS information includes the QFI, the QCI, and the configuration parameter corresponding to the QCI , the service data flow and the QoS flow have a mapping relationship; the access network device acquires the configuration parameter corresponding to the QCI according to the QoS information.
  • the configuration parameters include one or more of the following: bit rate, packet loss rate, packet delay budget, and priority.
  • an embodiment of the present application provides a method for transmitting a service flow data flow, including: a session management network element sends feature information of a service data flow and QoS information of the service data flow to a user plane network element, where The characteristic information of the service data flow is used to indicate the traffic characteristic information corresponding to different time slices of the service data flow in a time period, and the QoS information is used to indicate the QoS levels corresponding to the different time slices respectively.
  • the feature information of the service data stream can enable the user plane network element to determine the first time slice corresponding to the data packet of the service data stream according to the feature information of the service data stream; and, according to the The first time slice corresponding to the data packet of the service data stream and the QCI corresponding to the first time slice send the data packet.
  • an embodiment of the present application provides a method for transmitting a service flow data flow, including: a session management network element sends feature information of the service data flow and QoS information of the service data flow to an access network device, so The characteristic information of the service data flow is used to indicate the traffic characteristic information corresponding to different time slices of the service data flow in a time period, and the QoS information is used to indicate the QoS levels corresponding to the different time slices respectively.
  • the feature information of the service data flow can enable the access network device to determine the configuration parameters corresponding to the data packets of the service data flow according to the feature information of the service data flow and the QoS information; according to For the configuration parameter, the data packet is sent to the terminal device.
  • the session management network element receives the feature information of the service data flow and the QoS information of the service data flow from the policy control network element.
  • an embodiment of the present application provides a communication device, where the device may be a user plane network element or a chip used for a user plane network element.
  • the apparatus has the function of implementing the above-mentioned first aspect, or each possible implementation method of the first aspect. This function can be implemented by hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • an embodiment of the present application provides a communication apparatus, and the apparatus may be an access network device or a chip of the access network device.
  • the apparatus has the function of implementing the second aspect, the third aspect, each possible implementation method of the second aspect or each possible implementation method of the third aspect. This function can be implemented by hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • an embodiment of the present application provides a communication device, where the device may be a session management network element or a chip of the session management network element.
  • the device has the function of implementing the fourth aspect, the fifth aspect, each possible implementation method of the fourth aspect or each possible implementation method of the fifth and third aspects. This function can be implemented by hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • an embodiment of the present application provides a communication device, including a processor and a memory; the memory is used to store computer-executed instructions, and when the device is running, the processor executes the computer-executed instructions stored in the memory, so that the The apparatus executes any of the methods of the first aspect to the fifth aspect and the possible implementation methods of the first aspect to the fifth aspect.
  • an embodiment of the present application provides a communication device, including a communication device for performing each step of the above-mentioned methods of the first to fifth aspects and any of the possible implementation methods of the first to fifth aspects.
  • a communication device including a communication device for performing each step of the above-mentioned methods of the first to fifth aspects and any of the possible implementation methods of the first to fifth aspects. Units or means.
  • an embodiment of the present application provides a communication device, including a processor and an interface circuit, where the processor is configured to communicate with other devices through the interface circuit, and execute the methods of the first to fifth aspects and the first Any of the possible implementation methods of the aspect to the fifth aspect.
  • the processor includes one or more.
  • an embodiment of the present application provides a communication device, including a processor that is connected to a memory and used to call a program stored in the memory to execute the methods of the first to fifth aspects and the first Any of the possible implementation methods of the first aspect to the fifth aspect.
  • the memory may be located within the device or external to the device.
  • the processor includes one or more.
  • an embodiment of the present application further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium runs on a computer, the processor causes the processor to execute the above-mentioned first to fifth aspects The method of the aspect and any of the possible implementation methods of the first to fifth aspects.
  • an embodiment of the present application further provides a computer program product, the computer product includes a computer program, when the computer program runs, the methods of the first to fifth aspects and the methods of the first to fifth aspects are enabled. Any of the possible implementations.
  • an embodiment of the present application further provides a chip system, including: a processor configured to execute the methods of the first to fifth aspects and any of the possible implementation methods of the first to fifth aspects. any method.
  • an embodiment of the present application further provides a communication system, including a user plane network element and a receiving network element.
  • the user plane network element is configured to receive characteristic information of the service data flow and QoS information of the service data flow from the session management network element, and the characteristic information of the service data flow is used to indicate that the service data flow is in Traffic characteristic information corresponding to different time slices in a time period, the QoS information is used to indicate the QoS level identifiers QCI corresponding to the different time slices respectively; according to the characteristic information of the service data flow, determine the the first time slice corresponding to the data packet of the service data stream; and, according to the first time slice corresponding to the data packet of the service data stream and the QCI corresponding to the first time slice, send the described data pack.
  • the receiving network element is configured to receive the data packet from the user plane network element.
  • an embodiment of the present application further provides a communication system, including an access network device and a session management network element.
  • the session management network element is configured to send characteristic information of the service data flow and QoS information of the service data flow to the access network device, where the characteristic information of the service data flow is used to indicate the service data Traffic characteristic information corresponding to different time slices of the flow within a time period, and the QoS information is used to indicate the QoS level identifiers QCI corresponding to the different time slices respectively.
  • the access network device is configured to receive the characteristic information of the service data flow and the QoS information of the service data flow from the session management network element; according to the characteristic information of the service data flow and the QoS information, Determine the configuration parameters corresponding to the data packets of the service data flow; and send the data packets to the terminal device according to the configuration parameters.
  • FIG. 1(a) is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 1(b) is a schematic diagram of another communication system provided by an embodiment of the present application.
  • Figure 2(a) is a schematic diagram of a 5G network architecture based on a service-oriented architecture
  • Figure 2(b) is a schematic diagram of a 5G network architecture based on a point-to-point interface
  • 3(a) is a schematic diagram of a method for transmitting a service data stream provided by an embodiment of the present application
  • FIG. 3(b) is a schematic diagram of another method for transmitting a service data stream provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of time slicing provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of another method for transmitting a service data stream provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another method for transmitting a service data stream provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a communication device according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of still another communication apparatus provided by an embodiment of the present application.
  • the present application provides a communication system, which includes an access network device and a user plane network element.
  • the system further includes a session management network element.
  • the user plane network element is configured to receive characteristic information of the service data flow and QoS information of the service data flow from the session management network element, and the characteristic information of the service data flow is used to indicate that the service data flow is in Traffic characteristic information corresponding to different time slices in a time period, the QoS information is used to indicate the QoS level identifiers QCI corresponding to the different time slices respectively; according to the characteristic information of the service data flow, determine the The first time slice corresponding to the data packet of the service data stream; and, according to the first time slice corresponding to the data packet of the service data stream and the QCI corresponding to the first time slice, send the data to the receiving network element.
  • the data packet; the receiving network element is configured to receive the data packet from the user plane network element.
  • the receiving network element may be an access network device, or may be other user plane network elements, and certainly may be other network elements in the network, which is not limited here.
  • the characteristic information includes a time period, at least two time slices corresponding to the time period, and respective bit rates corresponding to the at least two time slices
  • the QoS information includes QoS
  • the flow identifier QFI and the QCIs corresponding to the at least two time slices respectively, the QCIs corresponding to the at least two time slices are not exactly the same, and the service data flow has a mapping relationship with the QoS flow corresponding to the QFI;
  • the user plane network element is configured to determine, according to the feature information of the service data flow, the first time slice corresponding to the data packet of the service data flow, and specifically includes: according to the feature information of the service data flow and the first bit rate of the data packet of the service data stream, to determine a first time slice corresponding to the first bit rate among the at least two time slices.
  • the user plane network element is configured to determine the at least two time divisions according to the characteristic information of the service data flow and the first bit rate of the data packets of the service data flow
  • the first time slice corresponding to the first bit rate in the slices specifically includes: determining the boundary of the time period in which the data packet is located according to the characteristic information; time slices, bit rates corresponding to the at least two time slices respectively, and the first bit rate, and the first time slice corresponding to the first bit rate is determined.
  • the user plane network element is configured to send the receiving network element to the receiving network element according to the first time slice corresponding to the data packet of the service data flow and the QCI corresponding to the first time slice
  • Sending the data packet specifically includes: adding the QFI and the first QCI to the data packet and sending the data packet carrying the QFI and the first QCI to the receiving network element, the The first QCI is a QCI corresponding to the first time slice among the QCIs corresponding to the at least two time slices respectively.
  • the user plane network element is configured to add the QFI and the first QCI to the data packet, specifically including: adding the QFI to a header of the data packet and the first QCI.
  • the session management network element is used to receive the feature information of the service data flow and the QoS information of the service data flow from the policy control network element; and, to the user
  • the plane network element sends the feature information of the service data flow and the QoS information of the service data flow.
  • the system shown in Figure 1(a) can be used in the 5th generation (5G) network architecture shown in Figure 2(a) or Figure 2(b), of course, it can also be used in future network architectures, such as The sixth generation (6th generation, 6G) network architecture, etc., is not limited in this application.
  • 5G 5th generation
  • 6G 6th generation
  • the present application provides a communication system, which includes an access network device and a session management network element.
  • the session management network element is configured to send characteristic information of the service data flow and QoS information of the service data flow to the access network device, where the characteristic information of the service data flow is used to indicate the service data Traffic characteristic information corresponding to different time slices of the flow in a time period, the QoS information is used to indicate the QoS level identifiers QCI corresponding to the different time slices respectively;
  • the session management network element receives the characteristic information of the service data flow and the QoS information of the service data flow; Configuration parameters; according to the configuration parameters, send the data packet to the terminal device.
  • the characteristic information includes a time period, at least two time slices corresponding to the time period, and bit rates corresponding to the at least two time slices respectively
  • the QoS information includes QFI and the QCIs corresponding to the at least two time slices respectively, the QCIs corresponding to the at least two time slices are not exactly the same, and the service data flow has a mapping relationship with the QoS flow corresponding to the QFI;
  • the connection The network access device is configured to determine the configuration parameters corresponding to the data packets of the service data flow according to the characteristic information of the service data flow and the QoS information, which specifically includes: being used for according to the characteristic information of the service data flow and the QoS information.
  • the first bit rate of the data packet of the service data stream determining the first time slice corresponding to the first bit rate in the at least two time slices; determining the at least two time slices respectively
  • the first QCI corresponding to the first time slice in the corresponding QCIs; the configuration parameter corresponding to the first QCI is determined, which is the configuration parameter corresponding to the data packet of the service data flow.
  • the configuration parameters include one or more of the following information: sending rate, packet loss rate, packet delay budget, and priority.
  • the access network device is further configured to determine, according to the reported channel state information CSI, the transmission timing and subcarriers occupied by the data packet.
  • Sending the data packet to the terminal device according to the configuration parameter corresponding to the first QCI includes: according to the configuration parameter corresponding to the first QCI, sending the data packet to the terminal device at the transmission timing and subcarrier occupied by the data packet The terminal device sends the data packet.
  • the access network device is further configured to send configuration information to the terminal device, where the configuration information includes indication information and the time period, and the indication information is used to indicate the The period in which the terminal equipment reports the channel state information CSI is the same as the time period; the CSI is received from the terminal equipment.
  • the indication information is further used to instruct the terminal device to report the CSI at a first time period before the arrival of the data packet.
  • the access network device is further configured to determine the arrival time of the data packet according to the time period; and send a message to the terminal for a second time period before the data packet arrives
  • the device sends downlink control information DCI, where the DCI is used to instruct the terminal device to report CSI; and receives the CSI from the terminal device.
  • the system shown in Figure 1(b) can be used in the 5G network architecture shown in Figure 2(a) or Figure 2(b), of course, it can also be used in future network architectures, such as 6G network architectures, etc. This application does not Do limit.
  • FIG. 2(a) is a schematic diagram of a 5G network architecture based on a service-oriented architecture.
  • the network element or entity corresponding to the user plane network element in Fig. 1(a) may be the user plane function (UPF) network element in the 5G network architecture shown in Fig. 2(a).
  • the network element or entity corresponding to the access network device in FIG. 1(b) may be a radio access network (RAN) device in the 5G network architecture shown in FIG. 2(a).
  • the network element or entity corresponding to the session management network element in Fig. 1(a) or Fig. 1(b) may be a session management function (SMF) network in the 5G network architecture shown in Fig. 2(a) Yuan.
  • SMF session management function
  • the 5G network architecture shown in Figure 2(a) can include three parts, namely the terminal equipment part, the data network (DN) and the operator network part. The following briefly describes the functions of some of the network elements.
  • the operator network may include one or more of the following network elements: Authentication Server Function (AUSF) network element, Network Exposure Function (NEF) network element, Policy Control Function (Policy Control Function) Function, PCF) network element, unified data management (unified data management, UDM), unified database (Unified Data Repository, UDR), network storage function (Network Repository Function, NRF) network element, application function (Application Function, AF) network Elements, Access and Mobility Management Function (AMF) network elements, SMF network elements, RAN and UPF network elements, etc.
  • AUSF Authentication Server Function
  • NEF Network Exposure Function
  • Policy Control Function Policy Control Function
  • PCF Policy Control Function
  • UDM unified data management
  • UDR Unified Data Repository
  • NRF Network Repository Function
  • AMF Access and Mobility Management Function
  • the terminal device in this embodiment of the present application may be a device for implementing a wireless communication function.
  • the terminal equipment may be a user equipment (UE), an access terminal, a terminal unit, a terminal station, a mobile station, a mobile station in a 5G network or a public land mobile network (PLMN) evolved in the future.
  • UE user equipment
  • PLMN public land mobile network
  • remote station remote terminal
  • mobile device wireless communication device
  • terminal agent or terminal device etc.
  • the access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices or wearable devices, virtual reality (VR) end devices, augmented reality (AR) end devices, industrial control (industrial) wireless terminal in control), wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transportation safety Terminals, wireless terminals in smart cities, wireless terminals in smart homes, etc. Terminals can be mobile or stationary.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • a wireless communication Functional handheld devices computing devices or other processing devices connected to wireless modems, in-vehicle devices or wearable devices, virtual reality (VR) end devices, augmented reality (AR) end devices, industrial control (industrial) wireless terminal in control), wireless terminal in self-driving,
  • the above-mentioned terminal device can establish a connection with the operator network through an interface (eg, N1, etc.) provided by the operator network, and use the data and/or voice services provided by the operator network.
  • the terminal device can also access the DN through the operator's network, and use the operator's service deployed on the DN and/or the service provided by a third party.
  • the above-mentioned third party may be a service party other than the operator's network and the terminal device, and may provide other data and/or voice services for the terminal device.
  • the specific expression form of the above third party can be specifically determined according to the actual application scenario, and is not limited here.
  • RAN is a sub-network of an operator's network, and is an implementation system between service nodes and terminal equipment in the operator's network.
  • the terminal device To access the operator's network, the terminal device first passes through the RAN, and then can be connected to the service node of the operator's network through the RAN.
  • the RAN device in this application is a device that provides a wireless communication function for a terminal device, and the RAN device is also called an access network device.
  • the RAN equipment in this application includes but is not limited to: next-generation base station (g nodeB, gNB), evolved node B (evolved node B, eNB), radio network controller (radio network controller, RNC), node B in 5G (node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (baseBand unit, BBU), transmission point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), mobile switching center, etc.
  • next-generation base station g nodeB, gNB
  • evolved node B evolved node B
  • eNB evolved node B
  • RNC radio network controller
  • node B in 5G node B, NB
  • base station controller BSC
  • base transceiver station base transceiver station
  • BTS home base station
  • base station for example, home
  • the AMF network element mainly performs functions such as mobility management, access authentication or authorization. In addition, it is also responsible for transferring user policies between UE and PCF.
  • the SMF network element mainly performs functions such as session management, execution of control policies issued by PCF, selection of UPF, and allocation of UE Internet Protocol (IP) addresses.
  • IP Internet Protocol
  • the UPF network element as the interface UPF with the data network, implements functions such as user plane data forwarding, session/flow-level accounting statistics, and bandwidth limitation.
  • the UDM network element is mainly responsible for the management of contract data, user access authorization and other functions.
  • UDR is mainly responsible for the access function of contract data, policy data, application data and other types of data.
  • the NEF network element is mainly used to support the opening of capabilities and events.
  • the AF network element mainly conveys the requirements of the application side to the network side, such as QoS requirements or subscription of user status events.
  • the AF may be a third-party functional entity or an application service deployed by an operator, such as an IP Multimedia Subsystem (IP Multimedia Subsystem, IMS) voice call service.
  • IP Multimedia Subsystem IP Multimedia Subsystem, IMS
  • the AF network element may also be called an application server.
  • the PCF network element is mainly responsible for policy control functions such as charging for sessions and service data flow levels, QoS bandwidth guarantee and mobility management, and UE policy decision-making.
  • the NRF network element can be used to provide the network element discovery function, and provide network element information corresponding to the network element type based on the request of other network elements.
  • NRF also provides network element management services, such as network element registration, update, de-registration, and network element status subscription and push.
  • AUSF network element It is mainly responsible for authenticating users to determine whether to allow users or devices to access the network.
  • a DN is a network outside the operator's network.
  • the operator's network can access multiple DNs, and multiple services can be deployed on the DNs, which can provide data and/or voice services for terminal devices.
  • DN is the private network of a smart factory.
  • the sensors installed in the workshop of the smart factory can be terminal devices, and the control server of the sensor is deployed in the DN, and the control server can provide services for the sensor.
  • the sensor can communicate with the control server, obtain the instruction of the control server, and transmit the collected sensor data to the control server according to the instruction.
  • the DN is an internal office network of a company.
  • the mobile phones or computers of employees of the company can be terminal devices, and the mobile phones or computers of employees can access information and data resources on the internal office network of the company.
  • Nausf, Nnef, Npcf, Nudm, Naf, Namf, Nsmf, N1, N2, N3, N4, and N6 are interface serial numbers.
  • interface serial numbers refer to the meanings defined in the 3GPP standard protocol, which is not limited here.
  • FIG. 2(b) is a schematic diagram of a 5G network architecture based on a service-oriented architecture.
  • the network element or entity corresponding to the user plane network element in Fig. 1(a) may be the UPF network element in the 5G network architecture shown in Fig. 2(b).
  • the network element or entity corresponding to the access network device may be the RAN device in the 5G network architecture shown in FIG. 2(b).
  • the network element or entity corresponding to the session management network element in Fig. 1(a) or Fig. 1(b) may be the SMF network element in the 5G network architecture shown in Fig. 2(b).
  • FIG. 2( b ) For the introduction of the functions of the network elements in FIG. 2( b ), reference may be made to the introduction of the functions of the corresponding network elements in FIG. 2( a ), and details are not repeated here.
  • the main difference between Fig. 2(b) and Fig. 2(a) is that the interface between each network element in Fig. 2(b) is a point-to-point interface, not a service-oriented interface.
  • N7 the interface between the PCF and the SMF, used to issue a protocol data unit (protocol data unit, PDU) session granularity and a business data flow granularity control policy.
  • protocol data unit protocol data unit
  • N15 the interface between the PCF and the AMF, used for delivering UE policies and access control related policies.
  • N5 the interface between the AF and the PCF, used for application service request delivery and network event reporting.
  • N4 The interface between the SMF and the UPF, used to transmit information between the control plane and the user plane, including controlling the distribution of forwarding rules for the user plane, QoS control rules, traffic statistics rules, etc., and information on the user plane report.
  • N11 the interface between the SMF and the AMF, used to transfer the PDU session tunnel information between the RAN and the UPF, the control message sent to the UE, the radio resource control information sent to the RAN, and the like.
  • N2 the interface between the AMF and the RAN, used to transmit radio bearer control information from the core network side to the RAN, etc.
  • N1 the interface between the AMF and the UE, irrespective of access, used to deliver QoS control rules and the like to the UE.
  • N8 the interface between the AMF and the UDM, used for the AMF to obtain the access and mobility management related contract data and authentication data from the UDM, and the AMF to register the UE current mobility management related information to the UDM, etc.
  • N10 the interface between the SMF and the UDM, for the SMF to obtain the session management related subscription data from the UDM, and the SMF to register the UE's current session related information to the UDM.
  • N35 an interface between the UDM and the UDR, used for the UDM to obtain user subscription data information from the UDR.
  • N36 an interface between the PCF and the UDR, for the PCF to obtain the policy-related subscription data and application data-related information from the UDR.
  • N12 the interface between AMF and AUSF, used for AMF to initiate an authentication process to AUSF, which can carry SUCI as a contract identifier;
  • N13 the interface between the UDM and the AUSF, for the AUSF to obtain the user authentication vector from the UDM to execute the authentication process.
  • network elements or functions may be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (eg, a cloud platform).
  • a platform eg, a cloud platform
  • the foregoing network element or function may be implemented by one device, or may be implemented jointly by multiple devices, or may be a functional module in one device, which is not specifically limited in this embodiment of the present application.
  • the session management network elements, policy control network elements, user plane network elements, and access network equipment in this application may be SMF, PCF, UPF, and RAN in Fig. 2(a) or Fig. 2(b), respectively, or may be In the future communication, such as the network element having the functions of the above-mentioned SMF, PCF, UPF, and RAN in the 6G network, this application does not limit this.
  • the present application takes as an example that the session management network element, the policy control network element, the user plane network element, and the access network equipment are the above-mentioned SMF, PCF, UPF, and RAN, respectively.
  • the terminal device is taken as an example of UE for description.
  • UPF when UPF receives downlink packets, UPF will filter packets with the same reliability requirements (Packet Detection Rule, PDR) configured in advance by SMF. packets) are encapsulated into the same QoS flow.
  • Multiple QoS flows may exist in the same PDU session (PDU session), but each QoS flow has an independent and unique QoS flow identifier (QoS flow Identifier, QFI), and each QoS flow is associated with a QoS configuration file (QoS flow Identifier). profile).
  • QFI QoS flow Identifier
  • QFI QoS flow Identifier
  • QoS flow Identifier QoS configuration file
  • the network side will use the same QoS guarantee for packets belonging to the same QoS flow according to the parameters in the QoS profile, such as delay, forwarding priority, packet loss rate, etc.
  • the RAN When the RAN receives the downlink QoS flow from the UPF, the RAN will encapsulate multiple QoS flows into the same Data Radio Bearer (DRB) according to certain mapping rules, and the same DRB will enjoy the same reliability on the air interface side Assure.
  • DRB Data Radio Bearer
  • a fixed QCI is currently used for a single service data flow, and each QCI corresponds to a QoS guarantee level. This way of using the fixed QCI will result in low transmission performance of the service data stream.
  • the existing network does not adjust the QoS value of service data flow in real time. That is to say, the same QoS is adopted in different industrial states, resulting in a mismatch between the QoS and the real demand.
  • an industrial control application has high QoS requirements in the initial stage, but low QoS requirements in the stable stage.
  • the stable stage adopts the same QoS as the initial stage, wireless resources will be wasted.
  • the QoS requirements of media service data streams vary within a certain time period, for example, in a period corresponding to a group of pictures (GOP). Internally, the QoS requirements of different image frames are different.
  • the frame rate is 60 frames/sec
  • the GOP period is 1 second
  • the initial frame in one period is an I frame
  • the QoS requirement is: the rate is 40MB/sec
  • the transmission time length is 16.7 milliseconds
  • the remaining frames are P frames, and their QoS requirements are: the rate is 10MB/sec, and the transmission time length is 16.8 milliseconds to 1 second.
  • the embodiments of the present application will solve the above-mentioned technical problem that the QoS guarantee mechanism for a single service data stream is not perfect, resulting in low transmission performance of the service data stream.
  • a relatively large sending rate that is, a bit rate
  • a relatively small sending rate in other periods of time
  • corresponding service data can be configured. How the stream is sent. Specifically, a time period is divided into different time segments (also referred to as time slices), and based on the traffic characteristics of the service data flow, the data transmission rates of different time segments in the time period are configured, so that when the transmission rate is received When larger data is sent, a larger transmission rate is used for external transmission, and when data with a smaller transmission rate is received, a smaller transmission rate is used for external transmission.
  • the service data flow refers to the service data flow from a third-party application server, such as a media service data flow, and specifically, includes a video service data flow, a voice service data flow, and the like.
  • the network element of the core network such as the UPF, can map the service data flow to the QoS flow.
  • the service data flow information includes one or more of the identification of the application (Application ID, App ID), the identification information of the service data flow, the characteristic information (Traffic model) of the service data flow, and the QoS requirements of the service data flow.
  • the identifier of the application is used to identify a specific service, for example, it can be a set character.
  • the identification information of the service data stream includes but is not limited to one or more of the following information: IP triplet, Uniform Resource Locator (Uniform Resource Locator, URL).
  • IP triplet refers to the IP address, port number and protocol number of the application server (ie AF).
  • the feature information of the service data stream is used to indicate the traffic feature information corresponding to different time slices of the service data stream in a time period.
  • the characteristic information of the service data stream includes a time period and at least two time slices corresponding to the time period. and the corresponding bit rate for each time slice.
  • the QoS requirements of the service data flow include but are not limited to one or more of the following information: bit rate (bitrate), packet loss rate (Packet Error Rate, PER), and packet delay budget (Packet Delay Budget, PDB).
  • bit rate bit rate
  • Packet Error Rate Packet Error Rate
  • PDB Packet Delay Budget
  • Each time slice in a time period in the characteristic information of the service data flow corresponds to a QoS requirement, and different time slices correspond to The QoS requirements may or may not be the same.
  • a time period is divided into 10 time slices, which are time slice 1 to time slice 10 respectively. Among them, time slice 1 corresponds to QoS requirement 1, time slices 2-3 all correspond to QoS requirement 2, and time slices 4-10 all correspond to QoS requirement 3.
  • FIG. 3( a ) a schematic diagram of a method for transmitting a service data stream provided by an embodiment of the present application is shown.
  • the UPF determines different QCIs corresponding to different data packets, and adds corresponding QCIs to the data packets, so that the RAN can send the data packets based on the QCIs in the data packets.
  • the method includes the following steps:
  • Step 301a the UPF receives the characteristic information of the service data flow and the QoS information of the service data flow.
  • the characteristic information of the service data flow is used to indicate the traffic characteristic information corresponding to different time slices of the service data flow in a time period, and the QoS information is used to indicate the QCI corresponding to different time slices respectively.
  • the traffic feature information here may include information such as the bit rate of the service data stream, or the size of the data volume, or may be other information that can reflect the traffic of the service data stream, which is not limited here.
  • the feature information of the service data flow comes from the AF.
  • the feature information of the business data flow comes from the database, and the feature information of the business data flow in the database comes from the AF.
  • the characteristic information of the service data flow comes from the SMF, and the characteristic information of the service data flow in the SMF comes from the AF.
  • Step 302a the UPF determines the first time slice corresponding to the data packet of the service data flow according to the characteristic information of the service data flow.
  • the feature information of the service data flow includes a time period, at least two time slices corresponding to the time period, and bit rates corresponding to the at least two time slices respectively
  • the QoS information includes a QoS flow identity (QFI) and at least two time slices.
  • QFI QoS flow identity
  • the QCIs corresponding to the two time slices respectively, the QCIs corresponding to the at least two time slices are not exactly the same, and there is a mapping relationship between the service data flow and the QoS flow corresponding to the QFI, then this step 302a may specifically be: UPF according to the service data
  • the characteristic information of the flow and the first bit rate of the data packets of the service data flow determine the first time slice corresponding to the first bit rate among the at least two time slices.
  • UPF first determines the boundary of the time period in which the data packet is located (ie, the starting point of the time period) according to the characteristic information of the service data stream, and then according to at least two time slices corresponding to the time period, at least two time periods The bit rate corresponding to the slices and the first bit rate of the data packets of the service data flow respectively, and the first time slice corresponding to the first bit rate is determined. That is, the UPF first recognizes that the bit rate of the received data packet is the first bit rate, and then determines that the time slice corresponding to the first bit rate is the first time slice, and thus determines that the data packet corresponds to the first time slice. time slicing.
  • the characteristic information of the service data stream includes: the time period is 1 second, the time period is divided into 60 time slices, time slice 1 corresponds to bit rate 1, and time slice 2 to time slice 60 correspond to bit rate 2.
  • the QoS information includes QFI, and time slice 1 corresponds to QCI 83, and time slice 2 to time slice 60 correspond to QCI 87.
  • the UPF receives the data packet of the service data flow, for example, it recognizes that the bit rate of the data packet is bit rate 1, it determines that the data packet corresponds to time slice 1.
  • any time slice from time slice 1 to time slice 60 may be regarded as the first time slice.
  • the UPF can determine the time slice 1 according to the following method: UPF first determines the time of the received data packet according to the characteristic information of the service data stream The boundary of the period (that is, the starting point of the time period, that is, the starting point of time slice 1), and then according to the time slice 1 to time slice 60 corresponding to the time period, and the corresponding time slice 1 to time slice 60 respectively The bit rate and the bit rate 1 of the data packet determine the time slice 1 corresponding to the bit rate 1. That is, the UPF first determines the boundary of the time period, and then, according to the bit rate 1 of the data packet, determines the time slice 1 corresponding to the bit rate within a time period starting from the boundary of the time period.
  • the UPF can determine any one of time slice 2 to time slice 60 according to the following method
  • Time slice UPF determines the corresponding bit rate 2 according to the boundary of the time period (that is, the starting point of time slice 1), the corresponding bit rate of time slice 1 to time slice 60, and the bit rate 2 of the data packet respectively.
  • the UPF first determines the starting point of time slice 2 according to the starting point of time slice 1, and then determines a time slice from time slice 2 to time slice 60 according to the bit rate 2 of the received data packet, Specifically, which time slice from time slice 2 to time slice 60 needs to be combined with the time point when the data packet with the bit rate of 2 is received and the time point when the data packet with the bit rate of 1 is received. delay to be determined.
  • the time period can also be divided into multiple time slices with different time lengths, for example, the time period is 1 second, and 1 second is divided into two time slices.
  • time slice 1 occupies the 0th to 16.7th milliseconds
  • time slice 1 corresponds to bit rate 1
  • time slice 1 corresponds to QCI 83
  • time slice 2 occupies 16.8 to 1 seconds
  • time slice 2 corresponds to bit rate 2
  • time slice 1 corresponds to QCI 87.
  • the UPF receives the data packet of the service data flow, for example, it recognizes that the bit rate of the data packet is bit rate 1, it determines that the data packet corresponds to time slice 1. If it is identified that the bit rate of the data packet is not bit rate 1, it is determined that the data packet corresponds to time slice 2.
  • time slice 1 or time slice 2 may be regarded as the first time slice.
  • FIG. 4 is an example where there are two kinds of QCIs in one cycle. In practice, there may not be limited to two kinds of QCIs in one cycle, and there may be more than two kinds of QCIs.
  • Step 303a the UPF sends the data packet to the RAN according to the first time slice corresponding to the data packet of the service data flow and the QCI corresponding to the first time slice. Accordingly, the RAN receives the packet.
  • the UPF sends the data packet to the RAN.
  • the UPF may send the data packet to the RAN through an interface between the UPF and the RAN, or the UPF may send the data packet to the RAN through an intermediate node.
  • this step 303a may specifically be: the RAN carries the identifier of the service data flow (ie the QFI) and the first QCI corresponding to the first time slice in the data packet and sends it to the RAN, where the first QCI is at least two times of the time period.
  • the UPF may add the first QCI and QFI to the data packet.
  • the first QCI and QFI may be added to the packet header of the data packet, and the specific implementation is of course not limited to this adding method. Taking FIG.
  • the UPF if it is determined that the data packet corresponds to time slice 1, the UPF carries QFI and QCI 83 in the data packet. If it is determined that the data packet corresponds to any time slice from time slice 2 to time slice 60, the UPF carries QFI and QCI 87 in the data packet.
  • Step 304a the RAN sends a data packet to the UE according to the configuration parameter corresponding to the first QCI.
  • the RAN After receiving the data packet carrying the first QCI, the RAN obtains the first QCI therefrom, and sends the data packet to the UE according to the configuration parameter corresponding to the first QCI.
  • the configuration parameters include one or more of the following: sending rate, packet loss rate, packet delay budget, and priority. That is, the RAN determines the transmission mode of sending data packets to the UE according to one or more information of the transmission rate, packet loss rate, packet delay budget, and priority indicated by the configuration parameters, and sends the data packets to the UE based on the transmission mode. data pack.
  • the RAN sends the data packet to the UE according to the bit rate, packet loss rate, packet delay budget, or priority corresponding to the QCI 83.
  • the RAN sends the data packet to the UE according to the bit rate, packet loss rate, packet delay budget, or priority corresponding to the QCI 87.
  • the RAN may receive the QoS information of the service data flow from the SMF, where the QoS information includes QFI, QCI, and configuration parameters corresponding to the QCI, and the RAN may obtain the configuration parameters corresponding to different QCIs from the QoS information.
  • multiple QCIs are configured for a single service data flow, and corresponding QoS guarantees are performed for data packets in different time slices according to the corresponding QCIs, which realizes the flexibility of service data flow control and satisfies the requirements of a single service data flow.
  • the QoS control requirements of the flow in different time periods can improve the transmission performance of the service data flow.
  • FIG. 3( b ) it is a schematic diagram of another method for transmitting a service data stream provided by an embodiment of the present application.
  • the RAN receives data packets with different transmission bit rates of the same service data flow, so that the RAN can identify the data packets with different bit rates, and then use the corresponding QCI to perform QoS control.
  • the method includes the following steps:
  • Step 301b the RAN receives the characteristic information of the service data flow and the QoS information of the service data flow.
  • the characteristic information of the service data flow is used to indicate the traffic characteristic information corresponding to different time slices of the service data flow in a time period, and the QoS information is used to indicate the QCI corresponding to different time slices respectively.
  • the feature information of the service data flow comes from the AF.
  • the feature information of the business data flow comes from the database, and the feature information of the business data flow in the database comes from the AF.
  • the characteristic information of the service data flow comes from the SMF, and the characteristic information of the service data flow in the SMF comes from the AF.
  • Step 302b the RAN determines the configuration parameters corresponding to the data packets of the service data flow according to the characteristic information and QoS information of the service data flow.
  • the content included in the configuration parameter refers to the foregoing description.
  • the feature information of the service data stream includes a time period, at least two time slices corresponding to the time period, and bit rates corresponding to the at least two time slices respectively
  • the QoS information includes QFI and QCI corresponding to the at least two time slices respectively
  • the QCIs corresponding to the at least two time slices are not exactly the same, and there is a mapping relationship between the service data flow and the QoS flow corresponding to the QFI
  • step 302b may specifically be: RAN according to the characteristic information of the service data flow and the service data flow
  • the first bit rate of the data packet determine the first time slice corresponding to the first bit rate among the at least two time slices, and then the RAN determines the QCI corresponding to the first time slice in the at least two time slices.
  • the first QCI corresponding to the slice, and then the RAN determines the configuration parameter corresponding to the first QCI, which is the configuration parameter corresponding to the data packet of the service data flow.
  • the characteristic information of the service data stream includes: the time period is 1 second, the time period is divided into 60 time slices, the time slice 1 corresponds to the bit rate 1, and the time slice 2 to time slice 60 corresponds to the bit rate. rate 2.
  • the QoS information includes QFI, and time slice 1 corresponds to QCI 83, and time slice 2 to time slice 60 correspond to QCI 87.
  • the RAN When the RAN receives the data packet of the service data stream, for example, it recognizes that the bit rate of the data packet is bit rate 1, it determines that the data packet corresponds to time slice 1, and then determines that the QCI corresponding to time slice 1 is QCI 83, Then determine the configuration parameters corresponding to the QCI 83, which are configuration parameters corresponding to the data packets of the service data flow.
  • Step 303b the RAN sends a data packet to the UE according to the configuration parameters.
  • the RAN determines that the data packet corresponds to the QCI 83
  • the data packet is sent to the UE according to the bit rate, packet loss rate, packet delay budget, or priority corresponding to the QCI 83.
  • the RAN determines that the data packet corresponds to the QCI 87
  • the RAN sends the data packet to the UE according to the bit rate, packet loss rate, packet delay budget, or priority corresponding to the QCI 87.
  • multiple QCIs are configured for a single service data flow, and corresponding QoS guarantees are performed for data packets in different time slices according to the corresponding QCIs, which realizes the flexibility of service data flow control and satisfies the requirements of a single service data flow.
  • the QoS control requirements of the flow in different time periods can improve the transmission performance of the service data flow.
  • the RAN before sending a data packet to the UE, the RAN first receives channel state information (CSI) from the UE, and then The transmission timing and subcarrier occupied by the data packet are determined according to the CSI, and then the RAN sends the data packet to the terminal device at the transmission timing and subcarrier occupied by the data packet according to the determined configuration parameters corresponding to the first QCI.
  • CSI channel state information
  • the methods for the RAN to receive the CSI from the UE include but are not limited to the following methods 1 to 3.
  • the RAN sends configuration information to the UE, where the configuration information includes indication information and a time period, the indication information is used to indicate that the period for reporting the CSI by the UE is the same as the time period; the RAN receives the CSI from the UE.
  • the RAN instructs the UE to periodically report the CSI to the RAN, and the period of reporting the CSI is equal to the time period sent to the UE.
  • Method 2 The RAN sends configuration information to the UE.
  • the configuration information includes indication information and a time period.
  • the indication information is used to instruct the UE to report the CSI with the same period as the time period and to instruct the UE to report the CSI at the first time period before the arrival of the data packet; the RAN; CSI is received from the UE.
  • the RAN instructs the UE to periodically report the CSI to the RAN, and the period for reporting the CSI is equal to the time period. And each time the UE reports the CSI, it is a first time period earlier than the data packet received from the RAN. Therefore, the RAN can determine, based on the received CSI, the transmission timing and subcarriers occupied by the data packets to be transmitted next.
  • Method 3 The RAN determines the arrival time of the data packet according to the time period; the RAN sends downlink control information (DCI) to the UE at the second time period before the arrival of the data packet, which is used to instruct the UE to report the CSI; Receive CSI.
  • DCI downlink control information
  • the RAN sends DCI to the UE at the second time period before receiving a data packet from the UPF to instruct the UE to report the CSI, so that the RAN can determine the data packet to be sent next based on the received CSI. Occupied transmission opportunities and subcarriers.
  • FIG. 3( a ) and FIG. 3( b ) will be described below with reference to the specific embodiments shown in FIG. 5 and FIG. 6 .
  • FIG. 5 it is a schematic diagram of another method for transmitting service data flow provided by the embodiment of the application.
  • the method provides the configuration process of the service data flow information.
  • the AF provides the service data flow information to the network through the NEF.
  • the service data flow information includes at least one of an application identifier, service data flow identification information, service data flow feature information, or service data flow QoS requirements. For details, refer to the foregoing description.
  • the method includes the following steps:
  • Step 501 the AF sends a first request to the NEF. Accordingly, the NEF may receive the first request.
  • the first request carries the newly added service data flow information or the updated service data flow information.
  • the AF when the AF is ready to add new service data flow information, the AF sends a first request to the NEF.
  • the first request may be a service data flow creation request, for example, it may be PFDManagement_Create Request, a service data flow creation request Carry the newly added service data flow information.
  • the AF when the AF is ready to update the existing service data flow information, the AF sends a first request to the NEF, and the first request may be a service data flow update request, such as a PFDManagement_Update Request, the service data flow
  • the update request carries the updated service data flow information.
  • Step 502 the NEF updates the service data flow information stored on the NEF.
  • the NEF first determines whether to allow the first request, and if so, updates the service data flow information stored on the NEF. For example, if the first request carries the newly added service data flow information, the NEF updates the service data flow information stored on the NEF according to the newly added service data flow information. For another example, if the first request carries updated service data flow information, the NEF updates the service data flow information stored on the NEF according to the updated service data flow information.
  • Step 503 the NEF sends a first response to the AF. Accordingly, the AF can receive the first response.
  • the first response is used to notify the AF that the request processing is successful.
  • the NEF determines that the first request is not allowed, or the NEF fails to update the service data flow information, the first response is used to notify the AF that the request processing fails.
  • the first response may be a service data flow creation response, or a business data flow update response.
  • Step 504 the NEF sends a second request to the UDR. Accordingly, the UDR may receive the second request.
  • the second request carries the newly added service data flow information or the updated service data flow information.
  • the NEF when the NEF is ready to add new service data flow information, the NEF sends a second request to the UDR, the second request may be a data management creation request (DM_Create Request), and the data management creation request carries the newly added service Data flow information.
  • DM_Create Request data management creation request
  • the NEF when the NEF is ready to update the existing service data flow information, the NEF sends a second request to the UDR, the second request may be a data management update request (DM_Update Request), and the data management update request carries the updated Business data flow information.
  • DM_Update Request data management update request
  • Step 505 the UDR updates the service data flow information stored in the UDR.
  • the UDR updates the service data flow information stored in the UDR according to the newly added service data flow information. For another example, if the second request carries updated service data flow information, the UDR updates the service data flow information stored in the UDR according to the updated service data flow information.
  • Step 506 the UDR sends a second response to the NEF. Accordingly, the NEF may receive the second response.
  • the second response is used to notify the NEF that the request processing is successful.
  • the UDR fails to update the service data flow information
  • the second response is used to notify the NEF that the request processing fails.
  • the second response may specifically be a data management create response (DM_Create Response) or a data management update response (DM_Update Response).
  • Step 507 the SMF determines that it needs to acquire service data flow information.
  • a timer is set on the SMF, and the SMF is triggered to obtain service data flow information every time the set time period expires.
  • the SMF determines that it needs to acquire service data flow information, which may be to determine that it needs to acquire newly added service data flow information, or to determine that it needs to acquire updated service data flow information.
  • Step 508 the SMF sends a third request to the NEF. Accordingly, the NEF can receive the third request.
  • the third request is used to request to obtain service data flow information.
  • the third request may be PFDManagement_Fetch Request.
  • Step 509 the NEF sends a third response to the SMF. Accordingly, the SMF can receive the third response.
  • the third response carries the newly added service data flow information or the updated service data flow information.
  • the third response may be PFDManagement_Fetch Response.
  • the SMF After receiving the newly added service data flow information or the updated service data flow information, the SMF saves the newly added service data flow information or the updated service data flow information on the SMF.
  • the SMF actively requests the NEF to obtain the service data flow information.
  • the NEF may also receive the newly added service data flow information or the updated service data flow information after the NEF receives the information. , and actively report the newly added service data flow information or the updated service data flow information to the SMF.
  • the SMF may actively request the UDR to obtain the service data flow information.
  • Step 510 the SMF sends a fourth request to the UPF. Accordingly, the UPF may receive the fourth request.
  • the fourth request carries the identification information of the newly added service data flow, or the identification information of the updated service data flow.
  • the fourth request may be a PFD Management Request.
  • the UPF can perform data flow detection according to the identification information of the newly added service data flow or the identification information of the updated service data flow, and identify the new service data flow.
  • Step 511 the UPF sends a fourth response to the SMF. Accordingly, the SMF can receive the fourth response.
  • This step is optional.
  • the newly added service data flow information or the updated service data flow information is provided by the AF, and is updated to the NEF, UDR or SMF in the network. In a specific implementation, it may only be updated to one or more network elements in the NEF, UDR, and SMF in the network, or may also be updated to other network elements in the network, such as AMF, PCF, and so on. And, the identification information of the service data flow in the service data flow information is also updated to the UPF, so that the UPF can start to detect a new service data flow.
  • the network can acquire and configure the specified service data flow information, so that the corresponding service data flow can be detected, and subsequently the data flow can be transmitted based on the service data flow information.
  • the prior art does not support providing the service data flow feature information in the service data flow information to the network.
  • FIG. 6 it is a schematic diagram of another method for transmitting service data flow provided by the embodiment of the application.
  • the method provides the configuration process of the characteristic information of the business data flow.
  • the method includes the following steps:
  • Step 601 the UE establishes a service data flow connection of the application with the AF.
  • the UE and the AF establish an application service data flow connection, for example, an application in the UE may establish an application layer service data flow connection with an application in the AF.
  • the IP triplet or URL of the service data flow is consistent with the IP triplet or URL in the service data flow information provided by the AF to the network in advance.
  • the IP triplet or URL of the service data flow in step 601 is the same as the IP triplet in the service data flow information in the embodiment of FIG. 5 .
  • Groups or URLs remain the same.
  • Step 602 the UPF performs packet detection according to the configured packet detection rules, and when detecting a service data flow corresponding to a specified service, sends an event report to the PCF, and the event report carries the detected packet data flow description (Packet Flow Description, PFD) logo.
  • PFD Packet Flow Description
  • the UPF can use the IP triplet or URL in the service data flow information as the packet detection rule parameters to perform packet inspection.
  • the UPF can also send the event report to the SMF, and then the SMF sends the event report to the PCF.
  • Step 603 the PCF sends a Policy and Charging Control (PCC) rule to the SMF. Accordingly, the SMF can receive the PCC rules.
  • PCC Policy and Charging Control
  • the PCF can first obtain service data flow information from network elements such as UDR or SMF, and then generate PCC rules according to the service data flow information.
  • the PCF provides to generate a PCC rule for each service data stream, and then the PCF sends the PCC rule to the SMF.
  • Each PCC rule includes an identification of the application, identification information of the service data flow, characteristic information of the service data flow, and QoS information of the service data flow.
  • the QoS information of the service data flow is obtained according to the QoS requirement of the service data flow.
  • the QoS information of the service data flow includes a QoS flow identity (QoS Flow Identity, QFI) and a QCI corresponding to each time slice in a time period in the characteristic information of the service data flow.
  • the QoS information of the service data flow further includes configuration parameters corresponding to each QCI, and the configuration parameters include one or more of a sending rate, a packet loss rate, a packet delay budget, and a priority.
  • the QoS information of the service data flow may not need to carry the configuration parameters corresponding to the QCI.
  • the QoS information of the service data flow may carry the configuration parameters corresponding to the QCI.
  • the PCF may send the SMF initiated SM_Policy Association Modefication Request to the SMF, which carries the PCC rule.
  • Step 604 the SMF sends configuration information of at least one service data flow to the UPF. Accordingly, the UPF may receive configuration information of at least one service data flow.
  • Each service data flow corresponds to a piece of configuration information
  • the configuration information includes the identification of the application, the identification information of the service data flow, the feature information of the service data flow, and the QoS information of the service data flow.
  • the SMF can send the configuration information of multiple service data streams to the UPF through N4 messages (such as N4 PDU Establishment Modification Request, or N4 PDU Session Modification Request).
  • N4 messages such as N4 PDU Establishment Modification Request, or N4 PDU Session Modification Request.
  • the specific implementation method for the UPF to identify the service data flow or control the service data flow according to the characteristic information of the service data flow may refer to the relevant description of the embodiment in FIG.
  • Step 605 the SMF sends the configuration information of at least one service data flow to the RAN through the AMF.
  • the RAN may receive configuration information of at least one service data flow.
  • Each service data flow corresponds to a piece of configuration information
  • the configuration information includes the identification of the application, the identification information of the service data flow, the feature information of the service data flow, and the QoS information of the service data flow.
  • the specific implementation method for the RAN to identify or send the service data stream according to the characteristic information of the service data stream may refer to the relevant description of the embodiment in FIG. 3 , and will not be repeated here.
  • the configuration information of the service data flow can be sent to the RAN and the UPF, and the RAN and the UPF can schedule and transmit the service data flow according to the configuration information. control, so as to improve the transmission efficiency of business data flow.
  • each network element in the above-mentioned implementation includes corresponding hardware structures and/or software modules for executing each function.
  • the present invention can be implemented in hardware or a combination of hardware and computer software in conjunction with the units and algorithm steps of each example described in the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.
  • the steps or operations corresponding to the first policy control network element may also be implemented by components (such as chips or circuits) configured in the first policy control network element, and corresponding to the steps or operations implemented by the first policy control network element.
  • the steps or operations implemented by the two-policy control network element may also be implemented by components (such as chips or circuits) configured in the second policy control network element, and corresponding to the steps or operations implemented by the binding support network element, they may also be implemented by
  • the components (such as chips or circuits) that support the network element binding are implemented, and the steps or operations corresponding to the steps or operations implemented by the application function network elements may also be implemented by components (such as chips or circuits) configured in the application function network elements.
  • FIG. 7 it is a schematic diagram of a communication apparatus according to an embodiment of the present application.
  • the apparatus is used to implement various steps performed by the corresponding user plane network element or access network equipment in the above embodiments.
  • the apparatus 700 includes a sending unit 710 , a receiving unit 720 and a processing unit 730 .
  • the communication device is a user plane network element or a chip for a user plane network element, then:
  • the receiving unit 720 is configured to receive characteristic information of the service data flow and QoS information of the service data flow, where the characteristic information of the service data flow is used to indicate different time divisions of the service data flow in a time period.
  • the traffic characteristic information corresponding to the slice, the QoS information is used to indicate the QoS level identifiers QCI corresponding to the different time slices respectively;
  • the processing unit 730 is used to determine the service data according to the characteristic information of the service data stream.
  • the sending unit 710 is configured to send the data packet according to the first time slice corresponding to the data packet of the service data stream and the QCI corresponding to the first time slice .
  • the characteristic information includes a time period, at least two time slices corresponding to the time period, and respective bit rates corresponding to the at least two time slices
  • the QoS information includes QoS
  • the flow identifier QFI and the QCIs corresponding to the at least two time slices respectively, the QCIs corresponding to the at least two time slices are not exactly the same, and the service data flow has a mapping relationship with the QoS flow corresponding to the QFI;
  • the processing unit 730 is configured to determine, according to the feature information of the service data stream, a first time slice corresponding to a data packet of the service data stream, specifically including: being configured to, according to the feature information of the service data stream and For the first bit rate of the data packets of the service data flow, determine the first time slice corresponding to the first bit rate among the at least two time slices.
  • the processing unit 730 is configured to determine the at least two time slices according to the characteristic information of the service data stream and the first bit rate of the data packets of the service data stream the first time slice corresponding to the first bit rate in the The time slice, the bit rates corresponding to the at least two time slices, and the first bit rate respectively, determine the first time slice corresponding to the first bit rate.
  • the processing unit 730 is further configured to add the QFI and the first QCI to the data packet.
  • the sending unit 710 is configured to send the data packet according to the first time slice corresponding to the data packet of the service data stream and the QCI corresponding to the first time slice, and specifically includes: sending the data packet carrying the The data packet of the QFI and the first QCI, where the first QCI is the QCI corresponding to the first time slice among the QCIs corresponding to the at least two time slices respectively.
  • the processing unit 730 configured to add the QFI and the first QCI to the data packet, specifically includes: adding the QFI and the first QCI to a header of the data packet the first QCI.
  • the feature information of the business data flow comes from an application server; or, the feature information of the business data flow comes from a database, and the feature information of the business data flow in the database comes from an application server Or, the characteristic information of the service data flow comes from a session management network element, and the characteristic information of the service data flow in the session management network element comes from an application server.
  • the communication device is an access network device or a chip for an access network device, then:
  • the receiving unit 720 is configured to receive characteristic information of the service data flow and QoS information of the service data flow, where the characteristic information of the service data flow is used to indicate different time divisions of the service data flow in a time period.
  • the traffic characteristic information corresponding to the slice, the QoS information is used to indicate the QoS level identifiers QCI corresponding to the different time slices respectively;
  • the processing unit 730 is used for, according to the characteristic information of the service data flow and the QoS information, Determine the configuration parameter corresponding to the data packet of the service data flow;
  • the sending unit 710 is configured to send the data packet to the terminal device according to the configuration parameter.
  • the characteristic information includes a time period, at least two time slices corresponding to the time period, and bit rates corresponding to the at least two time slices respectively
  • the QoS information includes QFI and the QCIs corresponding to the at least two time slices respectively, the QCIs corresponding to the at least two time slices are not exactly the same, and there is a mapping relationship between the service data flow and the QoS flow corresponding to the QFI
  • the processing A unit 730 configured to determine, according to the feature information of the service data flow and the QoS information, the configuration parameters corresponding to the data packets of the service data flow, specifically including: being used for according to the feature information and the QoS information of the service data flow determining the first bit rate of the data packets of the service data stream, determining a first time slice corresponding to the first bit rate among the at least two time slices; determining that the at least two time slices correspond to A first QCI corresponding to the first time slice in the QCIs; determining a configuration parameter corresponding to the first
  • the configuration parameters include one or more of the following information: sending rate, packet loss rate, packet delay budget, and priority.
  • the processing unit 730 is further configured to determine, according to the reported channel state information CSI, the sending timing and sub-carriers occupied for sending the data packet; the sending unit 710 is specifically configured to: The configuration parameter corresponding to the first QCI is used, and the data packet is sent to the terminal device at the transmission timing and subcarrier occupied by the data packet.
  • the sending unit 710 is further configured to send configuration information to the terminal device, where the configuration information includes indication information and the time period, and the indication information is used to instruct the terminal
  • the period for the equipment to report the channel state information CSI is the same as the time period;
  • the receiving unit 720 is further configured to receive the CSI from the terminal equipment.
  • the indication information is further used to instruct the terminal device to report the CSI at a first time period before the arrival of the data packet.
  • the processing unit 730 is further configured to determine the arrival time of the data packet according to the time period; the sending unit 710 is further configured to determine the arrival time of the data packet before the arrival of the data packet For the second duration, downlink control information DCI is sent to the terminal device, where the DCI is used to instruct the terminal device to report the CSI; the receiving unit 720 is further configured to receive the CSI from the terminal device.
  • the feature information of the business data flow comes from an application server; or, the feature information of the business data flow comes from a database, and the feature information of the business data flow in the database comes from an application server Or, the characteristic information of the service data flow comes from a session management network element, and the characteristic information of the service data flow in the session management network element comes from an application server.
  • the above-mentioned communication device 700 may further include a storage unit, which is used to store data or instructions (also referred to as codes or programs), and each of the above-mentioned units may interact or be coupled with the storage unit to implement corresponding methods or Features.
  • the processing unit 730 may read data or instructions in the storage unit, so that the communication apparatus implements the methods in the above embodiments.
  • each unit in the device can be implemented in the form of software calling through the processing element; also all can be implemented in the form of hardware; some units can also be implemented in the form of software calling through the processing element, and some units can be implemented in the form of hardware.
  • each unit can be a separately established processing element, or can be integrated in a certain chip of the device to be implemented, and can also be stored in the memory in the form of a program, which can be called and executed by a certain processing element of the device.
  • all or part of these units can be integrated together, and can also be implemented independently.
  • the processing element described here can also become a processor, which can be an integrated circuit with signal processing capability.
  • each step of the above method or each of the above units may be implemented by an integrated logic circuit of hardware in the processor element or implemented in the form of software being invoked by the processing element.
  • a unit in any of the above apparatuses may be one or more integrated circuits configured to implement the above method, such as: one or more Application Specific Integrated Circuits (ASICs), or, one or more Multiple microprocessors (digital singnal processors, DSP), or, one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), or a combination of at least two of these integrated circuit forms.
  • ASICs Application Specific Integrated Circuits
  • DSP digital singnal processors
  • FPGA Field Programmable Gate Array
  • FPGA Field Programmable Gate Array
  • a unit in the apparatus can be implemented in the form of a processing element scheduler
  • the processing element can be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU) or other processors that can invoke programs.
  • CPU central processing unit
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • the above sending unit 710 is an interface circuit of the device, and is used to send signals to other devices.
  • the sending unit 710 is an interface circuit used by the chip to send signals to other chips or devices.
  • the above receiving unit 720 is an interface circuit of the device for receiving signals from other devices.
  • the receiving unit 720 is an interface circuit used by the chip to receive signals from other chips or devices.
  • FIG. 8 it is a schematic diagram of a communication apparatus according to an embodiment of the present application. It is used to realize the operation of the user plane network element or the access network device in the above embodiment.
  • the communication apparatus includes: a processor 810 and an interface 830 , and optionally, the communication apparatus further includes a memory 820 .
  • the interface 830 is used to enable communication with other devices.
  • the processor 810 may call the program stored in the memory (which may be the memory 820 in the user plane network element or the access network device, or an external memory) to fulfill. That is, the user plane network element or the access network device may include a processor 810, and the processor 810 executes the method performed by the user plane network element or the access network device in the above method embodiments by invoking the program in the memory.
  • the processor here may be an integrated circuit with signal processing capability, such as a CPU.
  • User plane network elements or access network equipment may be implemented by one or more integrated circuits configured to implement the above methods. For example: one or more ASICs, or, one or more microprocessor DSPs, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms. Alternatively, the above implementations may be combined.
  • the functions/implementation process of the sending unit 710, the receiving unit 720 and the processing unit 730 in FIG. 7 can be implemented by the processor 810 in the communication apparatus 800 shown in FIG. 8 calling the computer-executable instructions stored in the memory 820 .
  • the function/implementation process of the processing unit 730 in FIG. 7 can be implemented by the processor 810 in the communication apparatus 800 shown in FIG.
  • the function/implementation process of the unit 720 can be realized through the interface 830 in the communication device 800 shown in FIG. 8 .
  • At least one item (single, species) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple.
  • “Plurality" means two or more, and other quantifiers are similar.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center is by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that a computer can access, or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state disks (SSDs)), and the like.
  • a general-purpose processor may be a microprocessor, or alternatively, the general-purpose processor may be any conventional processor, controller, microcontroller, or state machine.
  • a processor may also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors in combination with a digital signal processor core, or any other similar configuration. accomplish.
  • the steps of the method or algorithm described in the embodiments of this application may be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • Software units can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read-Only Memory, ROM), EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or this.
  • RAM Random Access Memory
  • ROM read-only memory
  • EPROM memory read-only memory
  • EEPROM memory electrically erasable programmable read-only memory
  • registers hard disk, removable disk, CD-ROM or this.
  • a storage medium may be coupled to the processor such that the processor may read information from, and store information in, the storage medium.
  • the storage medium can also be integrated into the processor.
  • the processor and storage medium may be provided in the ASIC.
  • the above-described functions described herein may be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, the functions may be stored on, or transmitted over, a computer-readable medium in the form of one or more instructions or code.
  • Computer-readable media includes computer storage media and communication media that facilitate the transfer of a computer program from one place to another. Storage media can be any available media that a general-purpose or special-purpose computer can access.
  • Such computer-readable media may include, but are not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other device that can be used to carry or store instructions or data structures and Other media in the form of program code that can be read by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
  • any connection is properly defined as a computer-readable medium, for example, if software is transmitted from a website site, server or other remote source over a coaxial cable, fiber optic computer, twisted pair, digital subscriber line (DSL) Or transmitted by wireless means such as infrared, wireless, and microwave are also included in the definition of computer-readable media.
  • DSL digital subscriber line
  • the discs and magnetic discs include compact discs, laser discs, optical discs, digital versatile discs (English: Digital Versatile Disc, DVD for short), floppy discs and Blu-ray discs. Disks usually reproduce data magnetically, while Discs usually use lasers to optically reproduce data. Combinations of the above can also be included in computer readable media.
  • the functions described in this application may be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.

Abstract

本申请实施例提供业务数据流的传输方法、通信装置及通信系统。该方法包括：用户面网元接收业务数据流的特征信息和业务数据流的QoS信息，业务数据流的特征信息用于指示业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，QoS信息用于指示不同时间分片分别对应的QCI；根据业务数据流的特征信息，确定业务数据流的数据包对应的第一时间分片；根据业务数据流的数据包对应的第一时间分片和第一时间分片对应的QCI，向接入网设备发送该数据包。该方案，针对单个业务数据流配置多个QCI，对不同时间分片内的数据包根据QCI执行QoS保障，满足单个业务数据流在不同时间段的QoS控制需求，可提升业务数据流的传输性能。

Description

业务数据流的传输方法、通信装置及通信系统 技术领域
本申请涉及通信技术领域，尤其涉及业务数据流的传输方法、通信装置及通信系统。
背景技术
目前，将一个业务数据流(Service Data Flow，SDF)映射至一个服务质量(Quality of Service，QoS)流，并通过采用一个固定的QoS等级标识(QoS Class Identifier，QCI)对该QoS流执行QoS保障，也即一个业务数据流对应一种固定的QoS保障。
然而，目前的一些业务(如视频业务)，可能在一些时间段数据量较大，对时延要求高，在另一些时间段数据量较小，对时延要求低。如何针对此类业务执行QoS控制，以提升业务数据流的传输性能，目前还没有相应方法。
发明内容
本申请提供一种业务数据流的传输方法、通信装置及通信系统，用以提供一种合理的对单个业务数据流的QoS保障机制，以提升业务数据流的传输性能。
第一方面，本申请实施例提供一种业务数据流的传输方法，包括：用户面网元接收业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；所述用户面网元根据所述业务数据流的特征信息，确定所述业务数据流的数据包对应的第一时间分片；所述用户面网元根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI发送所述数据包。
这里用户面网元发送数据包，比如可以是用户面网元通过用户面网元与接入网设备之间的接口，向接入网设备发送数据包，也可以是用户面网元通过中间节点(比如：其他用户面网元等)向接入网设备发送该数据包。
基于上述方案，针对单个业务数据流，配置多个QCI，对不同时间分片内的数据包，根据相应的QCI执行相应的QoS保障，实现了业务数据流控制的灵活性，满足了单个业务数据流在不同时间段的QoS控制需求，因而可以提升业务数据流的传输性能。
在一种可能的实现方法中，所述特征信息包括时间周期、所述时间周期对应的至少两个时间分片和所述至少两个时间分片分别对应的比特率，所述QoS信息包括QoS流标识QFI和所述至少两个时间分片分别对应的QCI，所述至少两个时间分片分别对应的QCI不完全相同，所述业务数据流与所述QFI对应的QoS流存在映射关系；所述用户面网元根据所述业务数据流的特征信息，确定所述业务数据流的数据包对应的第一时间分片，包括：所述用户面网元根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片。
基于上述方案，用户面网元可以通过识别数据包的比特率，然后确定该比特率对应的时间分片，进而确定出数据包对应的时间分片，该方法可以实现快速确定数据包对应的时间分片，可以提升数据传输能力。
在一种可能的实现方法中，所述用户面网元根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片，包括：所述用户面网元根据所述特征信息，确定所述数据包所在的时间周期的边界(也可以称为是起始点)；所述用户面网元根据所述时间周期对应的至少两个时间分片、所述至少两个时间分片分别对应的比特率及所述第一比特率，确定所述第一比特率对应的所述第一时间分片。
在一种可能的实现方法中，所述用户面网元根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI发送所述数据包，包括：所述用户面网元在所述数据包添加所述QFI和所述第一QCI，并发送携带所述QFI和第一QCI的所述数据包，所述第一QCI是所述至少两个时间分片分别对应的QCI中的与所述第一时间分片对应的QCI。
基于该方案，用户面网元可以将数据包对应的QCI携带于数据包中发送进行发送，从而接收侧网元可以直接从数据包中获取到该数据包对应的QCI，并基于该QCI对该数据包实施QoS控制，实现了快速确定数据包对应的QoS控制策略，有助于提升数据传输质量。
在一种可能的实现方法中，所述用户面网元在所述数据包的包头添加所述QFI和所述第一QCI。
在一种可能的实现方法中，所述业务数据流的特征信息来自应用服务器；或者，所述业务数据流的特征信息来自数据库，所述数据库中的所述业务数据流的特征信息来自应用服务器；或者，所述业务数据流的特征信息来自会话管理网元，所述会话管理网元中的所述业务数据流的特征信息来自应用服务器。
第二方面，本申请实施例提供一种业务数据流的传输方法，包括：接入网设备接收业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；所述接入网设备根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据流的数据包对应的配置参数；所述接入网设备根据所述配置参数，向终端设备发送所述数据包。
基于上述方案，针对单个业务数据流，配置多个QCI，对不同时间分片内的数据包，根据相应的QCI执行相应的QoS保障，实现了业务数据流控制的灵活性，满足了单个业务数据流在不同时间段的QoS控制需求，因而可以提升业务数据流的传输性能。
在一种可能的实现方法中，所述特征信息包括时间周期、所述时间周期对应的至少两个时间分片和所述至少两个时间分片分别对应的比特率，所述QoS信息包括QFI和所述至少两个时间分片分别对应的QCI，所述至少两个时间分片分别对应的QCI不完全相同，所述业务数据流与所述QFI对应的QoS流存在映射关系；所述接入网设备根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据流的数据包对应的配置参数，包括：所述接入网设备根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片；所述接入网设备确定所述至少两个时间分片分别对应的QCI中的与所述第一时间分片对应的第一QCI；所述接入网设备确定所述第一QCI对应的配置参数，为所述业务数据流的数据包对应的配置参数。
基于上述方案，可以实现快速确定数据包对应的配置参数，可以提升数据传输能力。
在一种可能的实现方法中，所述配置参数包括以下信息中的一个或多个：发送速率、 丢包率、分组时延预算、优先级。
在一种可能的实现方法中，所述接入网设备根据上报信道状态信息CSI，确定发送所述数据包所占用的发送时机和子载波；所述接入网设备根据所述配置参数，向终端设备发送所述数据包，包括：所述接入网设备根据所述第一QCI对应的配置参数，在所述数据包所占用的发送时机和子载波向所述终端设备发送所述数据包。
基于上述方案，接入网设备可以基于终端设备上报的CSI确定发送数据包的发送时机和子载波，可以提升数据传输效率。
在一种可能的实现方法中，所述接入网设备向所述终端设备发送配置信息，所述配置信息包括指示信息和所述时间周期，所述指示信息用于指示所述终端设备上报信道状态信息CSI的周期与所述时间周期相同；所述接入网设备从所述终端设备接收所述CSI。
在一种可能的实现方法中，所述指示信息还用于指示所述终端设备在所述数据包到达前的第一时长上报CSI。
在一种可能的实现方法中，所述接入网设备根据所述时间周期，确定所述数据包的到达时间；所述接入网设备在所述数据包到达前的第二时长，向所述终端设备发送下行控制信息DCI，所述DCI用于指示所述终端设备上报CSI；所述接入网设备从所述终端设备接收所述CSI。
在一种可能的实现方法中，所述业务数据流的特征信息来自应用服务器；或者，所述业务数据流的特征信息来自数据库，所述数据库中的所述业务数据流的特征信息来自应用服务器；或者，所述业务数据流的特征信息来自会话管理网元，所述会话管理网元中的所述业务数据流的特征信息来自应用服务器。
第三方面，本申请实施例提供一种业务数据流的传输方法，包括：接入网设备从用户面网元接收服务质量QoS流的数据包，所述数据包的包头携带服务质量QoS流标识QFI和QoS等级标识QCI，所述QFI用于标识所述QoS流；所述接入网设备根据所述QCI对应的配置参数，向终端设备发送所述数据包。
在一种可能的实现方法中，所述接入网设备从会话管理网元接收业务数据流的QoS信息，所述QoS信息包括所述QFI、所述QCI和所述QCI对应的所述配置参数，所述业务数据流与所述QoS流存在映射关系；所述接入网设备根据所述QoS信息，获取所述QCI对应的所述配置参数。
在一种可能的实现方法中，所述配置参数包括以下一个或多个：比特率、丢包率、分组时延预算、优先级。
第四方面，本申请实施例提供一种业务流数据流的传输方法，包括：会话管理网元向用户面网元发送业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；所述业务数据流的特征信息可以使能用户面网元根据所述业务数据流的特征信息，确定所述业务数据流的数据包对应的第一时间分片；以及，根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI发送所述数据包。
第五方面，本申请实施例提供一种业务流数据流的传输方法，包括：会话管理网元向接入网设备发送业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的 流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；所述业务数据流的特征信息可以使能所述接入网设备根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据流的数据包对应的配置参数；根据所述配置参数，向终端设备发送所述数据包。
在第四方面或第五方面的一种可能的实现方法中，所述会话管理网元从策略控制网元接收所述业务数据流的特征信息和所述业务数据流的QoS信息。
第六方面，本申请实施例提供一种通信装置，该装置可以是用户面网元，还可以是用于用户面网元的芯片。该装置具有实现上述第一方面、或第一方面的各可能的实现方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第七方面，本申请实施例提供一种通信装置，该装置可以是接入网设备，还可以是接入网设备的芯片。该装置具有实现上述第二方面、第三方面、第二方面的各可能的实现方法或第三方面的各可能的实现方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第八方面，本申请实施例提供一种通信装置，该装置可以是会话管理网元，还可以是会话管理网元的芯片。该装置具有实现上述第四方面、第五方面、第四方面的各可能的实现方法或第五三方面的各可能的实现方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第九方面，本申请实施例提供一种通信装置，包括处理器和存储器；该存储器用于存储计算机执行指令，当该装置运行时，该处理器执行该存储器存储的该计算机执行指令，以使该装置执行如上述第一方面至第五方面的方法及第一方面至第五方面的各可能的实现方法中的任意方法。
第十方面，本申请实施例提供一种通信装置，包括用于执行上述第一方面至第五方面的方法及第一方面至第五方面的各可能的实现方法中的任意方法的各个步骤的单元或手段(means)。
第十一方面，本申请实施例提供一种通信装置，包括处理器和接口电路，所述处理器用于通过接口电路与其它装置通信，并执行上述第一方面至第五方面的方法及第一方面至第五方面的各可能的实现方法中的任意方法。该处理器包括一个或多个。
第十二方面，本申请实施例提供一种通信装置，包括处理器，用于与存储器相连，用于调用所述存储器中存储的程序，以执行上述第一方面至第五方面的方法及第一方面至第五方面的各可能的实现方法中的任意方法。该存储器可以位于该装置之内，也可以位于该装置之外。且该处理器包括一个或多个。
第十三方面，本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得处理器执行上述第一方面至第五方面的方法及第一方面至第五方面的各可能的实现方法中的任意方法。
第十四方面，本申请实施例还提供一种计算机程序产品，该计算机产品包括计算机程序，当计算机程序运行时，使得上述第一方面至第五方面的方法及第一方面至第五方面的各可能的实现方法中的任意方法。
第十五方面，本申请实施例还提供一种芯片系统，包括：处理器，用于执行上述第一方面至第五方面的方法及第一方面至第五方面的各可能的实现方法中的任意方法。
第十六方面，本申请实施例还提供一种通信系统，包括用户面网元和接收网元。所述用户面网元，用于从会话管理网元接收业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；根据所述业务数据流的特征信息，确定所述业务数据流的数据包对应的第一时间分片；以及，根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI向接收网元发送所述数据包。所述接收网元，用于从所述用户面网元接收所述数据包。
第十七方面，本申请实施例还提供一种通信系统，包括接入网设备和会话管理网元。所述会话管理网元，用于向所述接入网设备发送业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI。所述接入网设备，用于从所述会话管理网元接收所述业务数据流的特征信息和所述业务数据流的QoS信息；根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据流的数据包对应的配置参数；根据所述配置参数，向终端设备发送所述数据包。
附图说明
图1(a)为本申请实施例提供的一种通信系统示意图；
图1(b)为本申请实施例提供的又一种通信系统示意图；
图2(a)为基于服务化架构的5G网络架构示意图；
图2(b)为基于点对点接口的5G网络架构示意图；
图3(a)为本申请实施例提供的一种业务数据流的传输方法示意图；
图3(b)为本申请实施例提供的又一种业务数据流的传输方法示意图；
图4为本申请实施例提供的时间分片示意图；
图5为本申请实施例提供的又一种业务数据流的传输方法示意图；
图6为本申请实施例提供的又一种业务数据流的传输方法示意图；
图7为本申请实施例提供的一种通信装置示意图；
图8为本申请实施例提供的又一种通信装置示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。方法实施例中的具体操作方法也可以应用于装置实施例或系统实施例中。其中，在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
为解决背景技术中提到的问题，如图1(a)所示，本申请提供一种通信系统，该系统包括接入网设备和用户面网元。可选的，该系统还包括会话管理网元。
所述用户面网元，用于从会话管理网元接收业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；根据所述业务数据流的特征信息，确定所述业务数据流的数 据包对应的第一时间分片；以及，根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI，向接收网元发送所述数据包；所述接收网元，用于从所述用户面网元接收所述数据包。
在具体实现中，接收网元可以是接入网设备，也可以是其他用户面网元，当然也可以是网络中其他网元，这里不做限定。
在一种可能的实现方法中，所述特征信息包括时间周期、所述时间周期对应的至少两个时间分片和所述至少两个时间分片分别对应的比特率，所述QoS信息包括QoS流标识QFI和所述至少两个时间分片分别对应的QCI，所述至少两个时间分片分别对应的QCI不完全相同，所述业务数据流与所述QFI对应的QoS流存在映射关系；所述用户面网元，用于根据所述业务数据流的特征信息，确定所述业务数据流的数据包对应的第一时间分片，具体包括：用于根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片。
在一种可能的实现方法中，所述用户面网元，用于根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片，具体包括：用于根据所述特征信息，确定所述数据包所在的时间周期的边界；根据所述时间周期对应的至少两个时间分片、所述至少两个时间分片分别对应的比特率及所述第一比特率，确定所述第一比特率对应的所述第一时间分片。
在一种可能的实现方法中，所述用户面网元，用于根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI，向接收网元发送所述数据包，具体包括：用于在所述数据包添加所述QFI和所述第一QCI并向所述接收网元发送携带所述QFI和第一QCI的所述数据包，所述第一QCI是所述至少两个时间分片分别对应的QCI中的与所述第一时间分片对应的QCI。
在一种可能的实现方法中，所述用户面网元，用于在所述数据包添加所述QFI和所述第一QCI，具体包括：用于在所述数据包的包头添加所述QFI和所述第一QCI。
在一种可能的实现方法中，所述会话管理网元，用于从策略控制网元接收所述业务数据流的特征信息和所述业务数据流的QoS信息；以及，用于向所述用户面网元发送所述业务数据流的特征信息和所述业务数据流的QoS信息。
其中，上述方案的具体实现将在后续方法实施例部分详细阐述，在此不再赘述。
图1(a)所示的系统可以用在图2(a)或图2(b)所示的第五代(5th generation，5G)网络架构中，当然，也可以用在未来网络架构，比如第六代(6th generation，6G)网络架构等，本申请不做限定。
为解决背景技术中提到的问题，如图1(b)所示，本申请提供一种通信系统，该系统包括接入网设备和会话管理网元。
所述会话管理网元，用于向所述接入网设备发送业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；所述接入网设备，用于从所述会话管理网元接收所述业务数据流的特征信息和所述业务数据流的QoS信息；根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据流的数据包对应的配置参数；根据所述配置参数，向终端 设备发送所述数据包。
在一种可能的实现方法中，所述特征信息包括时间周期、所述时间周期对应的至少两个时间分片和所述至少两个时间分片分别对应的比特率，所述QoS信息包括QFI和所述至少两个时间分片分别对应的QCI，所述至少两个时间分片分别对应的QCI不完全相同，所述业务数据流与所述QFI对应的QoS流存在映射关系；所述接入网设备，用于根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据流的数据包对应的配置参数，具体包括：用于根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片；确定所述至少两个时间分片分别对应的QCI中的与所述第一时间分片对应的第一QCI；确定所述第一QCI对应的配置参数，为所述业务数据流的数据包对应的配置参数。
在一种可能的实现方法中，所述配置参数包括以下信息中的一个或多个：发送速率、丢包率、分组时延预算、优先级。
在一种可能的实现方法中，所述接入网设备，还用于根据上报的信道状态信息CSI，确定发送所述数据包所占用的发送时机和子载波。根据所述第一QCI对应的配置参数，向所述终端设备发送所述数据包，包括：根据所述第一QCI对应的配置参数，在所述数据包所占用的发送时机和子载波向所述终端设备发送所述数据包。
在一种可能的实现方法中，所述接入网设备，还用于向所述终端设备发送配置信息，所述配置信息包括指示信息和所述时间周期，所述指示信息用于指示所述终端设备上报信道状态信息CSI的周期与所述时间周期相同；从所述终端设备接收所述CSI。
在一种可能的实现方法中，所述指示信息还用于指示所述终端设备在所述数据包到达前的第一时长上报CSI。
在一种可能的实现方法中，所述接入网设备，还用于根据所述时间周期，确定所述数据包的到达时间；在所述数据包到达前的第二时长，向所述终端设备发送下行控制信息DCI，所述DCI用于指示所述终端设备上报CSI；从所述终端设备接收所述CSI。
其中，上述方案的具体实现将在后续方法实施例部分详细阐述，在此不再赘述。
图1(b)所示的系统可以用在图2(a)或图2(b)所示的5G网络架构中，当然，也可以用在未来网络架构，比如6G网络架构等，本申请不做限定。
示例性的，假设图1(a)或图1(b)所示的通信系统应用于5G网络架构，如图2(a)所示，为基于服务化架构的5G网络架构示意图。图1(a)中的用户面网元所对应的网元或者实体可以为图2(a)所示的5G网络架构中的用户面功能(user plane function，UPF)网元，图1(a)或图1(b)中的接入网设备所对应的网元或者实体可以为图2(a)所示的5G网络架构中的无线接入网(radio access network，RAN)设备。图1(a)或图1(b)中的会话管理网元所对应的网元或者实体可以为图2(a)所示的5G网络架构中的会话管理功能(session management function，SMF)网元。
图2(a)所示的5G网络架构中可包括三部分，分别是终端设备部分、数据网络(data network，DN)和运营商网络部分。下面对其中的部分网元的功能进行简单介绍说明。
其中，运营商网络可包括以下网元中的一个或多个：鉴权服务器功能(Authentication Server Function，AUSF)网元、网络开放功能(network exposure function，NEF)网元、策略控制功能(Policy Control Function，PCF)网元、统一数据管理(unified data management， UDM)、统一数据库(Unified Data Repository，UDR)、网络存储功能(Network Repository Function，NRF)网元、应用功能(Application Function，AF)网元、接入与移动性管理功能(Access and Mobility Management Function，AMF)网元、SMF网元、RAN以及UPF网元等。上述运营商网络中，除无线接入网部分之外的部分可以称为核心网络部分。
在具体实现中，本申请实施例中的终端设备，可以是用于实现无线通信功能的设备。其中，终端设备可以是5G网络或者未来演进的公共陆地移动网络(public land mobile network，PLMN)中的用户设备(user equipment，UE)、接入终端、终端单元、终端站、移动站、移动台、远方站、远程终端、移动设备、无线通信设备、终端代理或终端装置等。接入终端可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备或可穿戴设备，虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。终端可以是移动的，也可以是固定的。
上述终端设备可通过运营商网络提供的接口(例如N1等)与运营商网络建立连接，使用运营商网络提供的数据和/或语音等服务。终端设备还可通过运营商网络访问DN，使用DN上部署的运营商业务，和/或第三方提供的业务。其中，上述第三方可为运营商网络和终端设备之外的服务方，可为终端设备提供其他数据和/或语音等服务。其中，上述第三方的具体表现形式，具体可根据实际应用场景确定，在此不做限制。
RAN是运营商网络的子网络，是运营商网络中业务节点与终端设备之间的实施系统。终端设备要接入运营商网络，首先是经过RAN，进而可通过RAN与运营商网络的业务节点连接。本申请中的RAN设备，是一种为终端设备提供无线通信功能的设备，RAN设备也称为接入网设备。本申请中的RAN设备包括但不限于：5G中的下一代基站(g nodeB，gNB)、演进型节点B(evolved node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved nodeB，或home node B，HNB)、基带单元(baseBand unit，BBU)、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、移动交换中心等。
AMF网元，主要进行移动性管理、接入鉴权或授权等功能。此外，还负责在UE与PCF间传递用户策略。
SMF网元，主要进行会话管理、PCF下发控制策略的执行、UPF的选择、UE互联网协议(internet protocol，IP)地址分配等功能。
UPF网元，作为和数据网络的接口UPF，完成用户面数据转发、基于会话/流级的计费统计，带宽限制等功能。
UDM网元，主要负责管理签约数据、用户接入授权等功能。
UDR，主要负责签约数据、策略数据、应用数据等类型数据的存取功能。
NEF网元，主要用于支持能力和事件的开放。
AF网元，主要传递应用侧对网络侧的需求，例如，QoS需求或用户状态事件订阅等。 AF可以是第三方功能实体，也可以是运营商部署的应用服务，如IP多媒体子系统(IP Multimedia Subsystem，IMS)语音呼叫业务。其中，AF网元也可以称为应用服务器。
PCF网元，主要负责针对会话、业务数据流级别进行计费、QoS带宽保障及移动性管理、UE策略决策等策略控制功能。
NRF网元，可用于提供网元发现功能，基于其他网元的请求，提供网元类型对应的网元信息。NRF还提供网元管理服务，如网元注册、更新、去注册以及网元状态订阅和推送等。
AUSF网元：主要负责对用户进行鉴权，以确定是否允许用户或设备接入网络。
DN，是位于运营商网络之外的网络，运营商网络可以接入多个DN，DN上可部署多种业务，可为终端设备提供数据和/或语音等服务。例如，DN是某智能工厂的私有网络，智能工厂安装在车间的传感器可为终端设备，DN中部署了传感器的控制服务器，控制服务器可为传感器提供服务。传感器可与控制服务器通信，获取控制服务器的指令，根据指令将采集的传感器数据传送给控制服务器等。又例如，DN是某公司的内部办公网络，该公司员工的手机或者电脑可为终端设备，员工的手机或者电脑可以访问公司内部办公网络上的信息、数据资源等。
图2(a)中Nausf、Nnef、Npcf、Nudm、Naf、Namf、Nsmf、N1、N2、N3、N4，以及N6为接口序列号。这些接口序列号的含义可参见3GPP标准协议中定义的含义，在此不做限制。
示例性的，假设图1(a)或图1(b)所示的通信系统应用于5G网络架构，如图2(b)所示，为基于服务化架构的5G网络架构示意图。图1(a)中的用户面网元所对应的网元或者实体可以为图2(b)所示的5G网络架构中的UPF网元，图1(a)或图1(b)中的接入网设备所对应的网元或者实体可以为图2(b)所示的5G网络架构中的RAN设备。图1(a)或图1(b)中的会话管理网元所对应的网元或者实体可以为图2(b)所示的5G网络架构中的SMF网元。
图2(b)中的网元的功能的介绍可以参考图2(a)中对应的网元的功能的介绍，不再赘述。图2(b)与图2(a)的主要区别在于：图2(b)中的各个网元之间的接口是点对点的接口，而不是服务化的接口。
在图2(b)所示的架构中，各个网元之间的接口名称及功能如下：
1)、N7：PCF与SMF之间的接口，用于下发协议数据单元(protocol data unit，PDU)会话粒度以及业务数据流粒度控制策略。
2)、N15：PCF与AMF之间的接口，用于下发UE策略及接入控制相关策略。
3)、N5：AF与PCF之间的接口，用于应用业务请求下发以及网络事件上报。
4)、N4：SMF与UPF之间的接口，用于控制面与用户面之间传递信息，包括控制面向用户面的转发规则、QoS控制规则、流量统计规则等的下发以及用户面的信息上报。
5)、N11：SMF与AMF之间的接口，用于传递RAN和UPF之间的PDU会话隧道信息、传递发送给UE的控制消息、传递发送给RAN的无线资源控制信息等。
6)、N2：AMF与RAN之间的接口，用于传递核心网侧至RAN的无线承载控制信息等。
7)、N1：AMF与UE之间的接口，接入无关，用于向UE传递QoS控制规则等。
8)、N8：AMF与UDM间的接口，用于AMF向UDM获取接入与移动性管理相关签 约数据与鉴权数据，以及AMF向UDM注册UE当前移动性管理相关信息等。
9)、N10：SMF与UDM间的接口，用于SMF向UDM获取会话管理相关签约数据，以及SMF向UDM注册UE当前会话相关信息等。
10)、N35：UDM与UDR间的接口，用于UDM从UDR中获取用户签约数据信息。
11)、N36：PCF与UDR间的接口，用于PCF从UDR中获取策略相关签约数据以及应用数据相关信息。
12)、N12：AMF和AUSF间的接口，用于AMF向AUSF发起鉴权流程，其中可携带SUCI作为签约标识；
13)、N13：UDM与AUSF间的接口，用于AUSF向UDM获取用户鉴权向量，以执行鉴权流程。
可以理解的是，上述网元或者功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行的软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。可选的，上述网元或者功能可以由一个设备实现，也可以由多个设备共同实现，还可以是一个设备内的一个功能模块，本申请实施例对此不作具体限定。
本申请中的会话管理网元、策略控制网元、用户面网元、接入网设备分别可以是图2(a)或图2(b)中的SMF、PCF、UPF、RAN，也可以是未来通信如6G网络中具有上述SMF、PCF、UPF、RAN的功能的网元，本申请对此不限定。为方便说明，本申请以会话管理网元、策略控制网元、用户面网元、接入网设备分别为上述SMF、PCF、UPF、RAN为例进行说明。并且，以终端设备为UE为例进行说明。
在现有的QoS模型中，当UPF收到下行数据包时，UPF会根据SMF提前配置好的包检测规则(Packet Detection Rule，PDR)过滤器(filter)将具有相同可靠性需求的数据包(packets)封装至同一个QoS流(QoS flow)。多个QoS flow可能存在于同一个PDU会话(PDU session)中，但每一个QoS flow具有独立、唯一的QoS流标识(QoS flow Identifier，QFI)，且每个QoS flow关联一个QoS配置文件(QoS profile)。网络侧会根据QoS profile里面的参数对属于同一个QoS flow的数据包采用相同的QoS保障，如时延、转发优先级、丢包率等等。
当RAN收到来自UPF的下行QoS flow时，RAN会按照一定的映射规则将多个QoS flow封装至同一个数据无线承载(Data Radio Bearer，DRB)，同一个DRB会享有相同的空口侧可靠性保障。
如背景技术所述，目前针对单个业务数据流是采用固定的QCI，每个QCI对应一种QoS保障级别。这种采用固定QCI的方式将导致业务数据流的传输性能不高。作为一个示例，在工业通信业务的应用场景中，在一个控制时间周期内，工业系统处于不同状态时，其QoS需求是不同的，但现有网络对业务数据流QoS值的调整是非实时的，即不同工业状态下采用相同的QoS，导致QoS与真实需求不匹配。例如一个工业控制应用，初始阶段对QoS需求高，而稳定阶段对QoS需求低，如果稳定阶段采用和初始阶段相同的QoS，将造成无线资源浪费。作为另一示例，在视频通讯、多方视频会议等媒体业务场景中，媒体业务数据流在确定的时间周期内的QoS需求存在变化，例如在一个图像群组(Group of pictures，GOP)对应的周期内，不同图像帧的QoS需求不同。示例性地，GOP为60、帧 率为60帧/秒且GOP周期为1秒时，一个周期内的初始帧为I帧，其QoS需求为：速率40MB/秒，传输时间长度为16.7毫秒；剩余的帧为P帧，其QoS需求为：速率10MB/秒，传输时间长度为16.8毫秒至1秒。
可见，上述两个应用场景中，一个时间周期内存在至少两种QoS需求，而目前在一个时间周期内只能提供一种固定的QCI，也即只能提供一种QoS需求，无法满足上述应用场景的需求。
本申请实施例中将解决上述存在的对单个业务数据流的QoS保障机制不够完善而导致业务数据流的传输性能不高的技术问题。
本申请实施例，针对具有上述流量特征的业务数据流，即业务数据流的在一段时间发送速率(也即比特率)较大，在另一些时间段发送速率较小，可以配置相应的业务数据流的发送方式。具体的，将一个时间周期划分为不同时间分段(也可以称为时间分片)，基于业务数据流的流量特征，配置时间周期内不同时间分段的数据发送速率，使得在接收到发送速率较大的数据时，采用较大的发送速率对外发送，在接收到发送速率较小的数据时，采用较小的发送速率外发送。
本申请实施例中，业务数据流指的是来自第三方应用服务器的业务的数据流，如媒体业务数据流，具体的，比如包含视频业务数据流、语音业务数据流等。核心网的网元如UPF，可以将业务数据流映射至QoS流。
业务数据流信息包括应用的标识(Application ID，App ID)、业务数据流的标识信息、业务数据流的特征信息(Traffic model)、业务数据流的QoS需求中的一个或多个。
其中，应用的标识用于标识一个具体业务，例如可以为设定的字符。
业务数据流的标识信息包括但不限于以下信息中的一个或多个：IP三元组、统一资源定位符(Uniform Resource Locator，URL)。其中，IP三元组指的是应用服务器(即AF)的IP地址、端口号和协议号。
业务数据流的特征信息用于指示业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，业务数据流的特征信息包括时间周期、该时间周期对应的至少两个时间分片以及每个时间分片对应的比特率。
业务数据流的QoS需求包括但不限于以下信息中的一个或多个：比特率(bitrate)、丢包率(Packet Error Rate，PER)、分组时延预算(Packet Delay Budget，PDB)。
需要说明的是，业务数据流的特征信息与业务数据流的QoS需求存在对应关系，业务数据流的特征信息中的一个时间周期内的每个时间分片对应一个QoS需求，不同时间分片对应QoS需求可能相同，也可能不同。示例性地，将一个时间周期划分为10个时间分片，分别为时间分片1至时间分片10。其中，时间分片1对应QoS需求1，时间分片2-3均对应QoS需求2，时间分片4-10均对应QoS需求3。
如图3(a)所示，为本申请实施例提供的一种业务数据流的传输方法示意图。该方法由UPF确定不同数据包分别对应的不同QCI，并在数据包在添加相应的QCI，从而RAN可以基于数据包中的QCI对数据包进行发送。
该方法包括以下步骤：
步骤301a，UPF接收业务数据流的特征信息和业务数据流的QoS信息。
业务数据流的特征信息用于指示业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，QoS信息用于指示不同时间分片分别对应的QCI。
这里的流量特征信息可以包括业务数据流的比特率、或数据量大小等信息，也可以是其他能够反映业务数据流的流量的信息，这里不做限定。
可选的，业务数据流的特征信息来自AF。或者，业务数据流的特征信息来自数据库，数据库中的业务数据流的特征信息来自AF。或者，业务数据流的特征信息来自SMF，SMF中的业务数据流的特征信息来自AF。
步骤302a，UPF根据业务数据流的特征信息，确定业务数据流的数据包对应的第一时间分片。
比如，业务数据流的特征信息包括时间周期、时间周期对应的至少两个时间分片和至少两个时间分片分别对应的比特率，QoS信息包括QoS流标识(QoS flow identity，QFI)和至少两个时间分片分别对应的QCI，该至少两个时间分片分别对应的QCI不完全相同，业务数据流与QFI对应的QoS流存在映射关系，则该步骤302a具体可以是：UPF根据业务数据流的特征信息和业务数据流的数据包的第一比特率，确定至少两个时间分片中的与第一比特率对应的第一时间分片。在具体应用中，UPF先根据业务数据流的特征信息，确定数据包所在的时间周期的边界(即时间周期的起始点)，然后根据时间周期对应的至少两个时间分片、至少两个时间分片分别对应的比特率及业务数据流的数据包的第一比特率，确定第一比特率对应的第一时间分片。也即，UPF先识别出接收到的数据包的比特率是第一比特率，然后确定与该第一比特率相对应的时间分片是第一时间分片，因而确定该数据包对应第一时间分片。
作为示例，参考图4，为时间分片示意图。业务数据流的特征信息包括：时间周期为1秒，时间周期划分为60个时间分片，时间分片1对应比特率1，时间分片2至时间分片60对应比特率2。QoS信息包括QFI，以及时间分片1对应QCI 83,时间分片2至时间分片60对应QCI 87。当UPF接收到该业务数据流的数据包，比如识别出该数据包的比特率为比特率1，则确定该数据包对应时间分片1。这里，时间分片1至时间分片60中的任一时间分片可以视为第一时间分片。
作为一种实现方法，当第一时间分片是时间分片1，则UPF可以根据以下方法确定该时间分片1：UPF先根据业务数据流的特征信息，确定收到的数据包所在的时间周期的边界(即时间周期的起始点，也即时间分片1的起始点)，然后根据时间周期对应的时间分片1至时间分片60，时间分片1至时间分片60分别对应的比特率及数据包的比特率1，确定比特率1对应的时间分片1。也即，UPF先确定时间周期的边界，然后根据数据包的比特率1，确定从该时间周期的边界开始的一个时间周期内的与该比特率相对应的时间分片1。作为一种实现方法，当第一时间分片是时间分片2至时间分片60中的任一时间分片，则UPF可以根据以下方法确定该时间分片2至时间分片60中的任一时间分片：UPF根据时间周期的边界(即时间分片1的起始点)、时间分片1至时间分片60分别对应的比特率及数据包的比特率2，确定比特率2对应的时间分片2至时间分片60中的一个时间分片。也即，UPF先根据时间分片1的起始点确定时间分片2的起始点，然后根据收到数据包的比特率2，确定时间分片2至时间分片60中的一个时间分片，具体是时间分片2至时间分片60中的哪个时间分片，需要结合收到该比特率为2的数据包的时间点距离收到上述比特率为1的数据包的时间点之间的时延来确定。
需要说明的是，在图4所示的示例中，也可以将时间周期划分为多个时间长度不同的时间分片，比如时间周期为1秒，将1秒划分为2个时间分片。其中，时间分片1占用第0-第16.7毫秒，时间分片1对应比特率1，时间分片1对应QCI 83。时间分片2占用第16.8至第1秒，时间分片2对应比特率2，时间分片1对应QCI 87。当UPF接收到该业务数据流的数据包，比如识别出该数据包的比特率为比特率1，则确定该数据包对应时间分片1。若识别出该数据包的比特率不是比特率1，则确定该数据包对应时间分片2。这里，时间分片1或时间分片2可以视为第一时间分片。
图4是以一个周期内有两种QCI为例，在实际中，一个周期内可以不限于有两种QCI，也可以有两种以上的QCI。
步骤303a，UPF根据业务数据流的数据包对应的第一时间分片和第一时间分片对应的QCI，向RAN发送数据包。相应地，RAN收到数据包。
这里的UPF向RAN发送数据包，比如可以是UPF通过UPF与RAN之间的接口，向RAN发送数据包，也可以是UPF通过中间节点向RAN发送该数据包。
比如，该步骤303a具体可以是：RAN将业务数据流的标识(即QFI)和第一时间分片对应的第一QCI携带于数据包中发送至RAN，该第一QCI是时间周期的至少两个时间分片分别对应的QCI中的与第一时间分片对应的QCI。可选的，UPF可以将第一QCI和QFI添加至数据包中。比如，可以将第一QCI和QFI添加至该数据包的包头中，具体实现中，当然也不限于这种添加方式。以图4为例，若确定数据包对应时间分片1，则UPF在数据包中携带QFI和QCI 83。若确定数据包对应时间分片2至时间分片60中的任一时间分片，则UPF在数据包中携带QFI和QCI 87。
步骤304a，RAN根据第一QCI对应的配置参数，向UE发送数据包。
RAN接收到携带第一QCI的数据包后，从中获取到第一QCI，并根据第一QCI对应的配置参数，向UE发送数据包。该配置参数包括以下一个或多个：发送速率、丢包率、分组时延预算、优先级。也即，RAN根据配置参数所指示的发送速率、丢包率、分组时延预算、优先级中的一个或多个信息，确定向UE发送数据包的发送方式，并基于该发送方式向UE发送数据包。
比如，数据包中携带QCI 83，则RAN根据QCI 83对应的比特率、丢包率、分组时延预算、或优先级等，向UE发送该数据包。再比如，数据包中携带QCI 87，则RAN根据QCI 87对应的比特率、丢包率、分组时延预算、或优先级等，向UE发送该数据包。
可选的，RAN可以从SMF接收业务数据流的QoS信息，该QoS信息包括QFI、QCI和QCI对应的配置参数，RAN可以从QoS信息中获取不同QCI分别对应的配置参数。
基于上述方案，针对单个业务数据流，配置多个QCI，对不同时间分片内的数据包，根据相应的QCI执行相应的QoS保障，实现了业务数据流控制的灵活性，满足了单个业务数据流在不同时间段的QoS控制需求，因而可以提升业务数据流的传输性能。
如图3(b)所示，为本申请实施例提供的又一种业务数据流的传输方法示意图。该方法RAN接收到同一个业务数据流的不同发送比特率的数据包，从而RAN可以识别出具有不同比特率的数据包，进而采用相应的QCI进行QoS控制。
该方法包括以下步骤：
步骤301b，RAN接收业务数据流的特征信息和业务数据流的QoS信息。
业务数据流的特征信息用于指示业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，QoS信息用于指示不同时间分片分别对应的QCI。
可选的，业务数据流的特征信息来自AF。或者，业务数据流的特征信息来自数据库，数据库中的业务数据流的特征信息来自AF。或者，业务数据流的特征信息来自SMF，SMF中的业务数据流的特征信息来自AF。
步骤302b，RAN根据业务数据流的特征信息和QoS信息，确定业务数据流的数据包对应的配置参数。
该配置参数包括的内容参考前述描述。
比如，业务数据流的特征信息包括时间周期、时间周期对应的至少两个时间分片和至少两个时间分片分别对应的比特率，QoS信息包括QFI和至少两个时间分片分别对应的QCI，该至少两个时间分片分别对应的QCI不完全相同，业务数据流与QFI对应的QoS流存在映射关系，则该步骤302b具体可以是：RAN根据业务数据流的特征信息和业务数据流的数据包的第一比特率，确定至少两个时间分片中的与第一比特率对应的第一时间分片，然后RAN确定至少两个时间分片分别对应的QCI中的与第一时间分片对应的第一QCI，进而RAN确定第一QCI对应的配置参数，为业务数据流的数据包对应的配置参数。
以图4为例，业务数据流的特征信息包括：时间周期为1秒，时间周期划分为60个时间分片，时间分片1对应比特率1，时间分片2至时间分片60对应比特率2。QoS信息包括QFI，以及时间分片1对应QCI 83,时间分片2至时间分片60对应QCI 87。当RAN接收到该业务数据流的数据包，比如识别出该数据包的比特率为比特率1，则确定该数据包对应时间分片1，进而确定时间分片1对应的QCI为QCI 83，然后确定QCI 83对应的配置参数，为业务数据流的数据包对应的配置参数。
步骤303b，RAN根据配置参数，向UE发送数据包。
比如，RAN确定数据包对应QCI 83，则根据QCI 83对应的比特率、丢包率、分组时延预算、或优先级等，向UE发送该数据包。再比如，RAN确定数据包对应QCI 87，则根据QCI 87对应的比特率、丢包率、分组时延预算、或优先级等，向UE发送该数据包。
基于上述方案，针对单个业务数据流，配置多个QCI，对不同时间分片内的数据包，根据相应的QCI执行相应的QoS保障，实现了业务数据流控制的灵活性，满足了单个业务数据流在不同时间段的QoS控制需求，因而可以提升业务数据流的传输性能。
作为一种实现方法，在上述图3(a)或图3(b)对应的实施例中，RAN向UE发送数据包之前，先从UE收到信道状态信息(channel state information，CSI)，然后根据CSI确定发送数据包所占用的发送时机和子载波，进而RAN根据确定的第一QCI对应的配置参数，在数据包所占用的发送时机和子载波向终端设备发送数据包。
其中，RAN从UE接收CSI的方法包括但不限于以下方法一至方法三。
方法一，RAN向UE发送配置信息，配置信息包括指示信息和时间周期，该指示信息用于指示UE上报CSI的周期与该时间周期相同；RAN从UE接收CSI。
也即，RAN指示UE周期性地向RAN上报CSI，且上报CSI的周期等于发送给UE的时间周期。
方法二，RAN向UE发送配置信息，配置信息包括指示信息和时间周期，指示信息用于指示UE上报CSI的周期与该时间周期相同以及指示UE在数据包到达前的第一时长上报CSI；RAN从UE接收CSI。
也即，RAN指示UE周期性地向RAN上报CSI，且上报CSI的周期等于时间周期。并且UE每次上报CSI都比从RAN接收到数据包提前第一时长。因此，RAN可以基于接收到的CSI来确定接下来要发送的数据包所占用的发送时机和子载波。
方法三，RAN根据时间周期，确定数据包的到达时间；RAN在数据包到达前的第二时长，向UE发送下行控制信息(Downlink control information，DCI)，用于指示UE上报CSI；RAN从UE接收CSI。
也即，RAN在从UPF接收到一个数据包之前的第二时长所在的时刻，向UE发送DCI，以指示UE上报CSI，从而RAN可以基于接收到的CSI来确定接下来要发送的数据包所占用的发送时机和子载波。
作为示例，下面结合图5和图6所示的具体实施例，对上述图3(a)和图3(b)所示的实施例进行说明。
如图5所示，为申请实施例提供的另一种业务数据流的传输方法示意图。该方法给出了业务数据流信息的配置过程，具体的，由AF通过NEF将业务数据流信息提供给网络。其中，业务数据流信息包括应用的标识、业务数据流的标识信息、业务数据流的特征信息或业务数据流的QoS需求中的至少一个，具体说明参考前述描述。
该方法包括以下步骤：
步骤501，AF向NEF发送第一请求。相应地，NEF可以接收到该第一请求。
其中，第一请求中携带新增的业务数据流信息、或更新的业务数据流信息。
在一种实现方法中，AF准备增加新的业务数据流信息时，AF向NEF发送第一请求，该第一请求可以是业务数据流创建请求，比如具体可以是PFDManagement_Create Request，业务数据流创建请求携带新增的业务数据流信息。
在另一种实现方法中，AF准备更新现有的业务数据流信息时，AF向NEF发送第一请求，该第一请求可以是业务数据流更新请求，比如具体可以是PFDManagement_Update Request，业务数据流更新请求携带更新的业务数据流信息。
步骤502，NEF更新NEF上保存的业务数据流信息。
比如，NEF先判断是否允许第一请求，如果允许则更新NEF上保存的业务数据流信息。比如，若第一请求携带新增的业务数据流信息，则NEF根据新增的业务数据流信息，更新NEF上保存的业务数据流信息。再比如，若第一请求携带更新的业务数据流信息，则NEF根据更新的业务数据流信息，更新NEF上保存的业务数据流信息。
步骤503，NEF向AF发送第一响应。相应地，AF可以接收到该第一响应。
该第一响应用于通知AF的请求处理成功。
当然，如果上述步骤502中，NEF确定不允许第一请求、或NEF更新业务数据流信息失败，则第一响应用于通知AF的请求处理失败。
第一响应具体可以是业务数据流创建响应、或业务数据流更新响应。
步骤504，NEF向UDR发送第二请求。相应地，UDR可以接收到该第二请求。
其中，第二请求中携带新增的业务数据流信息、或更新的业务数据流信息。
在一种实现方法中，NEF准备增加新的业务数据流信息时，NEF向UDR发送第二请求，该第二请求可以是数据管理创建请求(DM_Create Request)，数据管理创建请求携带新增的业务数据流信息。
在另一种实现方法中，NEF准备更新现有的业务数据流信息时，NEF向UDR发送第二请求，该第二请求可以是数据管理更新请求(DM_Update Request)，数据管理更新请求携带更新的业务数据流信息。
步骤505，UDR更新UDR上保存的业务数据流信息。
比如，若第二请求携带新增的业务数据流信息，则UDR根据新增的业务数据流信息，更新UDR上保存的业务数据流信息。再比如，若第二请求携带更新的业务数据流信息，则UDR根据更新的业务数据流信息，更新UDR上保存的业务数据流信息。
步骤506，UDR向NEF发送第二响应。相应地，NEF可以接收到该第二响应。
该第二响应用于通知NEF的请求处理成功。
当然，如果上述步骤505中，UDR更新业务数据流信息失败，则第二响应用于通知NEF的请求处理失败。
第二响应具体可以是数据管理创建响应(DM_Create Response)、或数据管理更新响应(DM_Update Response)。
步骤507，SMF确定需要获取业务数据流信息。
比如，SMF上设置一个定时器，每到设定时长就触发SMF获取业务数据流信息。
其中，SMF确定需要获取业务数据流信息，可以是确定需要获取新增的业务数据流信息、或确定需要获取更新的业务数据流信息。
步骤508，SMF向NEF发送第三请求。相应地，NEF可以接收到该第三请求。
该第三请求用于请求获取业务数据流信息。
比如，第三请求可以是PFDManagement_Fetch Request。
步骤509，NEF向SMF发送第三响应。相应地，SMF可以接收到该第三响应。
该第三响应携带新增的业务数据流信息、或更新的业务数据流信息。
比如，第三响应可以是PFDManagement_Fetch Response。
SMF接收到新增的业务数据流信息、或更新的业务数据流信息后，在SMF上保存新增的业务数据流信息、或更新的业务数据流信息。
上述步骤507至步骤509是由SMF主动向NEF请求获取业务数据流信息，作为另一种实现方法，还可以是由NEF在接收到新增的业务数据流信息、或更新的业务数据流信息后，主动向SMF上报新增的业务数据流信息、或更新的业务数据流信息。或者，作为另一种实现方法，还可以是由SMF主动向UDR请求获取业务数据流信息。
步骤510，SMF向UPF发送第四请求。相应地，UPF可以接收到该第四请求。
其中，第四请求中携带新增的业务数据流的标识信息、或更新的业务数据流的标识信息。
比如，第四请求可以是PFD Management Request。
UPF可以按照新增的业务数据流的标识信息、或更新的业务数据流的标识信息进行数据流检测，识别新的业务数据流。
步骤511，UPF向SMF发送第四响应。相应地，SMF可以收到该第四响应。
该步骤为可选步骤。
上述实施例中，由AF提供新增的业务数据流信息、或更新的业务数据流信息，并更新至网络中的NEF、UDR或SMF。在具体实现中，可以是仅更新至网络中的NEF、UDR、SMF中的一个或多个网元，或者还可以是更新至网络中的其他网元，如AMF、PCF等。 以及，还将业务数据流信息中的业务数据流的标识信息更新至UPF，使得UPF可以开始检测新的业务数据流。
基于上述实施例，可以使网络获取和配置指定的业务数据流信息，从而可以检测到对应的业务数据流，后续可以基于业务数据流信息进行数据流的传输。而现有技术中不支持将业务数据流信息中的业务数据流特征信息提供给网络。
如图6所示，为申请实施例提供的另一种业务数据流的传输方法示意图。该方法给出了业务数据流的特征信息的配置过程。
该方法包括以下步骤：
步骤601，UE与AF建立应用的业务数据流连接。
UE与AF建立应用的业务数据流连接，比如可以是UE中的应用与AF中的应用建立应用层的业务数据流连接。
其中，该业务数据流的IP三元组或URL，与AF预先提供给网络的业务数据流信息中的IP三元组或URL保持一致。比如，AF按照图5实施例的方法向网络提供了业务数据流信息，则该步骤601的业务数据流的IP三元组或URL，与图5实施例的业务数据流信息中的IP三元组或URL保持一致。
步骤602，UPF根据配置的包检测规则做包检测，检测到有指定的业务对应的业务数据流时，向PCF发送事件报告，事件报告中携带检测的分组数据流描述(Packet Flow Description，PFD)标识。
比如，若UPF上预先配置了业务对应的业务数据流信息(比如通过图5实施例的步骤510配置的)，则该UPF可以将业务数据流信息中的IP三元组或URL作为包检测规则的参数，来进行包检测。
作为另一实现方法，UPF也可以将事件报告发给SMF，然后SMF再将事件报告发给PCF。
步骤603，PCF向SMF发送策略计费控制(Policy and Charging Control，PCC)规则。相应地，SMF可以接收到PCC规则。
PCF可以先从UDR、或SMF等网元获取业务数据流信息，然后根据业务数据流信息生成PCC规则。当业务采用多数据流传输时，PCF提供为每个业务数据流生成一个PCC规则，然后PCF向SMF发送PCC规则。每个PCC规则包括应用的标识、业务数据流的标识信息、业务数据流的特征信息和业务数据流的QoS信息。其中，业务数据流的QoS信息是根据业务数据流的QoS需求得到的。业务数据流的QoS信息包括QoS流标识(QoS Flow Identity，QFI)和业务数据流的特征信息中的一个时间周期内的各个时间分片分别对应的QCI。可选的，业务数据流的QoS信息还包括每个QCI对应的配置参数，配置参数包括发送速率、丢包率、分组时延预算、优先级中的一个或多个。比如，当QCI是标准定义的，则业务数据流的QoS信息可以不需要携带QCI对应的配置参数，当QCI是自定义的，则业务数据流的QoS信息可以携带QCI对应的配置参数。
作为一种实现方法，该步骤中PCF可以向SMF发送SMF initiated SM_Policy Association Modefication Request，其中携带PCC规则。
步骤604，SMF向UPF发送至少一个业务数据流的配置信息。相应地，UPF可以接收到至少一个业务数据流的配置信息。
每个业务数据流对应一个配置信息，配置信息包含应用的标识、业务数据流的标识信息、业务数据流的特征信息和业务数据流的QoS信息。
SMF通过可以通过N4消息(如N4 PDU Establishment Modification Request、或N4 PDU Session Modification Request)将多个业务数据流的配置信息发送给UPF。
其中，UPF根据业务数据流的特征信息，来识别业务数据流或对业务数据流进行控制的具体实现方法，可以参考图3实施例的相关描述，不再赘述。
步骤605，SMF通过AMF将至少一个业务数据流的配置信息发送给RAN。相应地，RAN可以接收到至少一个业务数据流的配置信息。
每个业务数据流对应一个配置信息，配置信息包含应用的标识、业务数据流的标识信息、业务数据流的特征信息和业务数据流的QoS信息。
其中，RAN根据业务数据流的特征信息，来识别或发送业务数据流的具体实现方法，可以参考图3实施例的相关描述，不再赘述。
基于上述实施例，在UE中的应用与AF建立应用的业务数据流连接之后，可以将业务数据流的配置信息发送给RAN和UPF，由RAN和UPF根据配置信息进行业务数据流的调度和传输控制，从而可以提升业务数据流的传输效率。
上述主要从各个网元之间交互的角度对本申请提供的方案进行了介绍。可以理解的是，上述实现各网元为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本发明能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
可以理解的是，上述各个方法实施例中，对应由第一策略控制网元实现的步骤或者操作，也可以由配置于第一策略控制网元的部件(例如芯片或者电路)实现，对应由第二策略控制网元实现的步骤或者操作，也可以由配置于第二策略控制网元的部件(例如芯片或者电路)实现，对应由绑定支持网元实现的步骤或者操作，也可以由配置于绑定支持网元的部件(例如芯片或者电路)实现，对应由应用功能网元实现的步骤或者操作，也可以由配置于应用功能网元的部件(例如芯片或者电路)实现。
参考图7，为本申请实施例提供的一种通信装置的示意图。该装置用于实现上述实施例中对应用户面网元或接入网设备所执行的各个步骤，如图7所示，该装置700包括发送单元710、接收单元720和处理单元730。
在第一个实施例中，该通信装置为用户面网元或为用于用户面网元的芯片，则：
接收单元720，用于接收业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；处理单元730，用于根据所述业务数据流的特征信息，确定所述业务数据流的数据包对应的第一时间分片；发送单元710，用于根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI发送所述数据包。
在一种可能的实现方法中，所述特征信息包括时间周期、所述时间周期对应的至少两 个时间分片和所述至少两个时间分片分别对应的比特率，所述QoS信息包括QoS流标识QFI和所述至少两个时间分片分别对应的QCI，所述至少两个时间分片分别对应的QCI不完全相同，所述业务数据流与所述QFI对应的QoS流存在映射关系；所述处理单元730，用于根据所述业务数据流的特征信息，确定所述业务数据流的数据包对应的第一时间分片，具体包括：用于根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片。
在一种可能的实现方法中，所述处理单元730，用于根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片，具体包括：用于根据所述特征信息，确定所述数据包所在的时间周期的边界；根据所述时间周期对应的至少两个时间分片、所述至少两个时间分片分别对应的比特率及所述第一比特率，确定所述第一比特率对应的所述第一时间分片。
在一种可能的实现方法中，所述处理单元730，还用于在所述数据包添加所述QFI和所述第一QCI。所述发送单元710，用于根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI发送所述数据包，具体包括：用于发送携带所述QFI和第一QCI的所述数据包，所述第一QCI是所述至少两个时间分片分别对应的QCI中的与所述第一时间分片对应的QCI。
在一种可能的实现方法中，所述处理单元730，用于在所述数据包添加所述QFI和所述第一QCI，具体包括：用于在所述数据包的包头添加所述QFI和所述第一QCI。
在一种可能的实现方法中，所述业务数据流的特征信息来自应用服务器；或者，所述业务数据流的特征信息来自数据库，所述数据库中的所述业务数据流的特征信息来自应用服务器；或者，所述业务数据流的特征信息来自会话管理网元，所述会话管理网元中的所述业务数据流的特征信息来自应用服务器。
在第二个实施例中，该通信装置为接入网设备或为用于接入网设备的芯片，则：
接收单元720，用于接收业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；处理单元730，用于根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据流的数据包对应的配置参数；发送单元710，用于根据所述配置参数，向终端设备发送所述数据包。
在一种可能的实现方法中，所述特征信息包括时间周期、所述时间周期对应的至少两个时间分片和所述至少两个时间分片分别对应的比特率，所述QoS信息包括QFI和所述至少两个时间分片分别对应的QCI，所述至少两个时间分片分别对应的QCI不完全相同，所述业务数据流与所述QFI对应的QoS流存在映射关系；所述处理单元730，用于根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据流的数据包对应的配置参数，具体包括：用于根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片；确定所述至少两个时间分片分别对应的QCI中的与所述第一时间分片对应的第一QCI；确定所述第一QCI对应的配置参数，为所述业务数据流的数据包对应的配置参数。
在一种可能的实现方法中，所述配置参数包括以下信息中的一个或多个：发送速率、 丢包率、分组时延预算、优先级。
在一种可能的实现方法中，所述处理单元730，还用于根据上报信道状态信息CSI，确定发送所述数据包所占用的发送时机和子载波；所述发送单元710，具体用于根据所述第一QCI对应的配置参数，在所述数据包所占用的发送时机和子载波向所述终端设备发送所述数据包。
在一种可能的实现方法中，所述发送单元710，还用于向所述终端设备发送配置信息，所述配置信息包括指示信息和所述时间周期，所述指示信息用于指示所述终端设备上报信道状态信息CSI的周期与所述时间周期相同；所述接收单元720，还用于从所述终端设备接收所述CSI。
在一种可能的实现方法中，所述指示信息还用于指示所述终端设备在所述数据包到达前的第一时长上报CSI。
在一种可能的实现方法中，所述处理单元730，还用于根据所述时间周期，确定所述数据包的到达时间；所述发送单元710，还用于在所述数据包到达前的第二时长，向所述终端设备发送下行控制信息DCI，所述DCI用于指示所述终端设备上报CSI；所述接收单元720，还用于从所述终端设备接收所述CSI。
在一种可能的实现方法中，所述业务数据流的特征信息来自应用服务器；或者，所述业务数据流的特征信息来自数据库，所述数据库中的所述业务数据流的特征信息来自应用服务器；或者，所述业务数据流的特征信息来自会话管理网元，所述会话管理网元中的所述业务数据流的特征信息来自应用服务器。
可选的，上述通信装置700还可以包括存储单元，该存储单元用于存储数据或者指令(也可以称为代码或者程序)，上述各个单元可以和存储单元交互或者耦合，以实现对应的方法或者功能。例如，处理单元730可以读取存储单元中的数据或者指令，使得通信装置实现上述实施例中的方法。
应理解以上装置中单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且装置中的单元可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分单元以软件通过处理元件调用的形式实现，部分单元以硬件的形式实现。例如，各个单元可以为单独设立的处理元件，也可以集成在装置的某一个芯片中实现，此外，也可以以程序的形式存储于存储器中，由装置的某一个处理元件调用并执行该单元的功能。此外这些单元全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件又可以成为处理器，可以是一种具有信号的处理能力的集成电路。在实现过程中，上述方法的各步骤或以上各个单元可以通过处理器元件中的硬件的集成逻辑电路实现或者以软件通过处理元件调用的形式实现。
在一个例子中，以上任一装置中的单元可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital singnal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)，或这些集成电路形式中至少两种的组合。再如，当装置中的单元可以通过处理元件调度程序的形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)或其它可以调用程序的处理器。再如，这些单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
以上发送单元710是一种该装置的接口电路，用于向其它装置发送信号。例如，当该 装置以芯片的方式实现时，该发送单元710是该芯片用于向其它芯片或装置发送信号的接口电路。
以上接收单元720是一种该装置的接口电路，用于从其它装置接收信号。例如，当该装置以芯片的方式实现时，该接收单元720是该芯片用于从其它芯片或装置接收信号的接口电路。
参考图8，为本申请实施例提供的一种通信装置示意图。用于实现以上实施例中用户面网元或接入网设备的操作。如图8所示，该通信装置包括：处理器810和接口830，可选的，该通信装置还包括存储器820。接口830用于实现与其他设备进行通信。
以上实施例中用户面网元或接入网设备执行的方法可以通过处理器810调用存储器(可以是用户面网元或接入网设备中的存储器820，也可以是外部存储器)中存储的程序来实现。即，用户面网元或接入网设备可以包括处理器810，该处理器810通过调用存储器中的程序，以执行以上方法实施例中用户面网元或接入网设备执行的方法。这里的处理器可以是一种具有信号的处理能力的集成电路，例如CPU。用户面网元或接入网设备可以通过配置成实施以上方法的一个或多个集成电路来实现。例如：一个或多个ASIC，或，一个或多个微处理器DSP，或，一个或者多个FPGA等，或这些集成电路形式中至少两种的组合。或者，可以结合以上实现方式。
具体的，图7中的发送单元710、接收单元720和处理单元730的功能/实现过程可以通过图8所示的通信装置800中的处理器810调用存储器820中存储的计算机可执行指令来实现。或者，图7中的处理单元730的功能/实现过程可以通过图8所示的通信装置800中的处理器810调用存储器820中存储的计算机执行指令来实现，图7中的发送单元710和接收单元720的功能/实现过程可以通过图8中所示的通信装置800中的接口830来实现。
本领域普通技术人员可以理解：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。“至少一个”是指一个或者多个。至少两个是指两个或者多个。“至少一个”、“任意一个”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个、种)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。“多个”是指两个或两个以上，其它量词与之类似。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算 机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包括一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
本申请实施例中所描述的各种说明性的逻辑单元和电路可以通过通用处理器，数字信号处理器，专用集成电路(ASIC)，现场可编程门阵列(FPGA)或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
本申请实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的软件单元、或者这两者的结合。软件单元可以存储于随机存取存储器(Random Access Memory，RAM)、闪存、只读存储器(Read-Only Memory，ROM)、EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介中。示例性地，存储媒介可以与处理器连接，以使得处理器可以从存储媒介中读取信息，并可以向存储媒介存写信息。可选地，存储媒介还可以集成到处理器中。处理器和存储媒介可以设置于ASIC中。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
在一个或多个示例性的设计中，本申请所描述的上述功能可以在硬件、软件、固件或这三者的任意组合来实现。如果在软件中实现，这些功能可以存储与电脑可读的媒介上，或以一个或多个指令或代码形式传输于电脑可读的媒介上。电脑可读媒介包括电脑存储媒介和便于使得让电脑程序从一个地方转移到其它地方的通信媒介。存储媒介可以是任何通用或特殊电脑可以接入访问的可用媒体。例如，这样的电脑可读媒体可以包括但不限于RAM、ROM、EEPROM、CD-ROM或其它光盘存储、磁盘存储或其它磁性存储装置，或其它任何可以用于承载或存储以指令或数据结构和其它可被通用或特殊电脑、或通用或特殊处理器读取形式的程序代码的媒介。此外，任何连接都可以被适当地定义为电脑可读媒介，例如，如果软件是从一个网站站点、服务器或其它远程资源通过一个同轴电缆、光纤电脑、双绞线、数字用户线(DSL)或以例如红外、无线和微波等无线方式传输的也被包含在所定义的电脑可读媒介中。所述的碟片(disk)和磁盘(disc)包括压缩磁盘、镭射盘、光盘、数字通用光盘(英文：Digital Versatile Disc，简称：DVD)、软盘和蓝光光盘，磁盘通常以磁性复制数据，而碟片通常以激光进行光学复制数据。上述的组合也可以包含在电脑可读媒介中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请的具体实施方式而已，并不用于限定本申请的保护范围，凡在本申请的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请的保护范围之内。本申请说明书的上述描述可以使得本领域技术任何可以利用或实现本申请的内容，任何基于所公开内容的修改都应该被认为是本领域显而易见的，本申请所描述的基本原则可以应用到其它变形中而不偏离本申请的发明本质和范围。因此，本申请所公开的内容不仅仅局限于所描述的实施例和设计，还可以扩展到与本申请原则和所公开的新特征一致的最大范围。
尽管结合具体特征及其实施例对本申请进行了描述，显而易见的，在不脱离本申请的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明，且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包括这些改动和变型在内。

Claims (26)

  1. 一种业务数据流的传输方法，其特征在于，包括：
    用户面网元接收业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；
    所述用户面网元根据所述业务数据流的特征信息，确定所述业务数据流的数据包对应的第一时间分片；
    所述用户面网元根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI发送所述数据包。
  2. 如权利要求1所述的方法，其特征在于，所述特征信息包括时间周期、所述时间周期对应的至少两个时间分片和所述至少两个时间分片分别对应的比特率，所述QoS信息包括QoS流标识QFI和所述至少两个时间分片分别对应的QCI，所述至少两个时间分片分别对应的QCI不完全相同，所述业务数据流与所述QFI对应的QoS流存在映射关系；
    所述用户面网元根据所述业务数据流的特征信息，确定所述业务数据流的数据包对应的第一时间分片，包括：
    所述用户面网元根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片。
  3. 如权利要求2所述的方法，其特征在于，所述用户面网元根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片，包括：
    所述用户面网元根据所述特征信息，确定所述数据包所在的时间周期的边界；
    所述用户面网元根据所述时间周期对应的至少两个时间分片、所述至少两个时间分片分别对应的比特率及所述第一比特率，确定所述第一比特率对应的所述第一时间分片。
  4. 如权利要求1-3任一所述的方法，其特征在于，所述用户面网元根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI发送所述数据包，包括：
    所述用户面网元在所述数据包添加所述QFI和所述第一QCI，并发送携带所述QFI和第一QCI的所述数据包，所述第一QCI是所述至少两个时间分片分别对应的QCI中的与所述第一时间分片对应的QCI。
  5. 如权利要求4所述的方法，其特征在于，所述用户面网元在所述数据包添加所述QFI和所述第一QCI，包括：
    所述用户面网元在所述数据包的包头添加所述QFI和所述第一QCI。
  6. 如权利要求1-5任一所述的方法，其特征在于，
    所述业务数据流的特征信息来自应用服务器；或者，
    所述业务数据流的特征信息来自数据库，所述数据库中的所述业务数据流的特征信息来自应用服务器；或者，
    所述业务数据流的特征信息来自会话管理网元，所述会话管理网元中的所述业务数据流的特征信息来自应用服务器。
  7. 一种业务数据流的传输方法，其特征在于，包括：
    接入网设备接收业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；
    所述接入网设备根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据流的数据包对应的配置参数；
    所述接入网设备根据所述配置参数，向终端设备发送所述数据包。
  8. 如权利要求7所述的方法，其特征在于，所述特征信息包括时间周期、所述时间周期对应的至少两个时间分片和所述至少两个时间分片分别对应的比特率，所述QoS信息包括QFI和所述至少两个时间分片分别对应的QCI，所述至少两个时间分片分别对应的QCI不完全相同，所述业务数据流与所述QFI对应的QoS流存在映射关系；
    所述接入网设备根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据流的数据包对应的配置参数，包括：
    所述接入网设备根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片；
    所述接入网设备确定所述至少两个时间分片分别对应的QCI中的与所述第一时间分片对应的第一QCI；
    所述接入网设备确定所述第一QCI对应的配置参数，为所述业务数据流的数据包对应的配置参数。
  9. 如权利要求7或8所述的方法，其特征在于，所述配置参数包括以下信息中的一个或多个：发送速率、丢包率、分组时延预算、优先级。
  10. 如权利要求8或9所述的方法，其特征在于，还包括：
    所述接入网设备根据上报信道状态信息CSI，确定发送所述数据包所占用的发送时机和子载波；
    所述接入网设备根据所述配置参数，向终端设备发送所述数据包，包括：
    所述接入网设备根据所述第一QCI对应的配置参数，在所述数据包所占用的发送时机和子载波向所述终端设备发送所述数据包。
  11. 如权利要求10所述的方法，其特征在于，还包括：
    所述接入网设备向所述终端设备发送配置信息，所述配置信息包括指示信息和所述时间周期，所述指示信息用于指示所述终端设备上报信道状态信息CSI的周期与所述时间周期相同；
    所述接入网设备从所述终端设备接收所述CSI。
  12. 如权利要求11所述的方法，其特征在于，所述指示信息还用于指示所述终端设备在所述数据包到达前的第一时长上报CSI。
  13. 如权利要求10所述的方法，其特征在于，还包括：
    所述接入网设备根据所述时间周期，确定所述数据包的到达时间；
    所述接入网设备在所述数据包到达前的第二时长，向所述终端设备发送下行控制信息DCI，所述DCI用于指示所述终端设备上报CSI；
    所述接入网设备从所述终端设备接收所述CSI。
  14. 如权利要求7-13任一所述的方法，其特征在于，
    所述业务数据流的特征信息来自应用服务器；或者，
    所述业务数据流的特征信息来自数据库，所述数据库中的所述业务数据流的特征信息来自应用服务器；或者，
    所述业务数据流的特征信息来自会话管理网元，所述会话管理网元中的所述业务数据流的特征信息来自应用服务器。
  15. 一种通信装置，其特征在于，包括：
    接收单元，用于接收业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；
    处理单元，用于根据所述业务数据流的特征信息，确定所述业务数据流的数据包对应的第一时间分片；
    发送单元，用于根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI发送所述数据包。
  16. 如权利要求15所述的装置，其特征在于，所述特征信息包括时间周期、所述时间周期对应的至少两个时间分片和所述至少两个时间分片分别对应的比特率，所述QoS信息包括QoS流标识QFI和所述至少两个时间分片分别对应的QCI，所述至少两个时间分片分别对应的QCI不完全相同，所述业务数据流与所述QFI对应的QoS流存在映射关系；
    所述处理单元，用于根据所述业务数据流的特征信息，确定所述业务数据流的数据包对应的第一时间分片，具体包括：
    用于根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片。
  17. 如权利要求16所述的装置，其特征在于，所述处理单元，用于根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片，具体包括：
    用于根据所述特征信息，确定所述数据包所在的时间周期的边界；根据所述时间周期对应的至少两个时间分片、所述至少两个时间分片分别对应的比特率及所述第一比特率，确定所述第一比特率对应的所述第一时间分片。
  18. 如权利要求15-17任一所述的装置，其特征在于，所述处理单元，还用于在所述数据包添加所述QFI和所述第一QCI；
    所述发送单元，用于根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI发送所述数据包，具体包括：
    用于向所述接入网设备发送携带所述QFI和第一QCI的所述数据包，所述第一QCI是所述至少两个时间分片分别对应的QCI中的与所述第一时间分片对应的QCI。
  19. 一种通信装置，其特征在于，包括：
    接收单元，用于接收业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；
    处理单元，用于根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据 流的数据包对应的配置参数；
    发送单元，用于根据所述配置参数，向终端设备发送所述数据包。
  20. 如权利要求19所述的装置，其特征在于，所述特征信息包括时间周期、所述时间周期对应的至少两个时间分片和所述至少两个时间分片分别对应的比特率，所述QoS信息包括QFI和所述至少两个时间分片分别对应的QCI，所述至少两个时间分片分别对应的QCI不完全相同，所述业务数据流与所述QFI对应的QoS流存在映射关系；
    所述处理单元，用于根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据流的数据包对应的配置参数，具体包括：
    用于根据所述业务数据流的特征信息和所述业务数据流的数据包的第一比特率，确定所述至少两个时间分片中的与所述第一比特率对应的第一时间分片；确定所述至少两个时间分片分别对应的QCI中的与所述第一时间分片对应的第一QCI；确定所述第一QCI对应的配置参数，为所述业务数据流的数据包对应的配置参数。
  21. 如权利要求20所述的装置，其特征在于，所述处理单元，还用于根据上报信道状态信息CSI，确定发送所述数据包所占用的发送时机和子载波；
    所述发送单元，具体用于根据所述第一QCI对应的配置参数，在所述数据包所占用的发送时机和子载波向所述终端设备发送所述数据包。
  22. 如权利要求21所述的装置，其特征在于，所述发送单元，还用于向所述终端设备发送配置信息，所述配置信息包括指示信息和所述时间周期，所述指示信息用于指示所述终端设备上报信道状态信息CSI的周期与所述时间周期相同；
    所述接收单元，还用于从所述终端设备接收所述CSI。
  23. 如权利要求21所述的装置，其特征在于，所述处理单元，还用于根据所述时间周期，确定所述数据包的到达时间；
    所述发送单元，还用于在所述数据包到达前的第二时长，向所述终端设备发送下行控制信息DCI，所述DCI用于指示所述终端设备上报CSI；
    所述接收单元，还用于从所述终端设备接收所述CSI。
  24. 一种通信系统，其特征在于，包括用户面网元和接收网元；
    所述用户面网元，用于从会话管理网元接收业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分片分别对应的QoS等级标识QCI；根据所述业务数据流的特征信息，确定所述业务数据流的数据包对应的第一时间分片；以及，根据所述业务数据流的数据包对应的第一时间分片和所述第一时间分片对应的QCI向接收网元发送所述数据包；
    所述接收网元，用于从所述用户面网元接收所述数据包。
  25. 如权利要求24所述的系统，其特征在于，所述系统还包括所述会话管理网元，用于从策略控制网元接收所述业务数据流的特征信息和所述业务数据流的QoS信息；以及，用于向所述用户面网元发送所述业务数据流的特征信息和所述业务数据流的QoS信息。
  26. 一种通信系统，其特征在于，包括接入网设备和会话管理网元；
    所述会话管理网元，用于向所述接入网设备发送业务数据流的特征信息和所述业务数据流的服务质量QoS信息，所述业务数据流的特征信息用于指示所述业务数据流在一个时间周期内的不同时间分片所对应的流量特征信息，所述QoS信息用于指示所述不同时间分 片分别对应的QoS等级标识QCI；
    所述接入网设备，用于从所述会话管理网元接收所述业务数据流的特征信息和所述业务数据流的QoS信息；根据所述业务数据流的特征信息和所述QoS信息，确定所述业务数据流的数据包对应的配置参数；根据所述配置参数，向终端设备发送所述数据包。
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