WO2018126692A1 - Procédé et appareil destinés à commander la transmission de données - Google Patents

Procédé et appareil destinés à commander la transmission de données Download PDF

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Publication number
WO2018126692A1
WO2018126692A1 PCT/CN2017/097399 CN2017097399W WO2018126692A1 WO 2018126692 A1 WO2018126692 A1 WO 2018126692A1 CN 2017097399 W CN2017097399 W CN 2017097399W WO 2018126692 A1 WO2018126692 A1 WO 2018126692A1
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Prior art keywords
data
information
matching
data packet
service
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PCT/CN2017/097399
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English (en)
Chinese (zh)
Inventor
韦安妮
熊春山
吴义壮
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华为技术有限公司
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Publication of WO2018126692A1 publication Critical patent/WO2018126692A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and an apparatus for controlling data transmission.
  • Wireless networks are the underlying network architecture, and more and more services are carried over wireless networks. According to the characteristics and requirements of the service, and the scarcity of the radio resources, the behavior of the network is determined.
  • the behavior of the network is defined and implemented by the quality of service (QoS) rules in advance. Scheduling, for example, when you are making a call, someone starts downloading a file. Due to the scarcity of wireless resources, downloading a file will preempt the communication resources of your communication and cause the phone you are communicating to hang up. It is necessary to ensure that the wireless resource of the voice call has a higher priority of resource usage than downloading a file, so as to ensure that the voice call is normal when the wireless resource is insufficient.
  • QoS quality of service
  • the QoS management method in the EPS wireless system defined in 3GPP is: QoS guarantee of various IP services provided by the EPS system can transmit one or more service data flows (SDF) of its data through one IP service.
  • SDF service data flows
  • the bearer is a logical transmission channel.
  • the QoS guarantee of the IP service is converted into the QoS guarantee of the EPS bearer, or the SDF of a specific QoS is mapped to the EPS bearer of a specific QoS.
  • the bearer is a logical transmission channel.
  • the EPS bearer is a logical transmission channel between a User Equipment (UE) and a PGW (PDN GateWay).
  • UE User Equipment
  • PGW PGW
  • the service data stream and the bearer are associated and mapped by a Traffic Flow Template (TFT), and are associated with the RB-ID in the wireless network, and the Tunnel End Point Identity (TEID) in the core network. Make an association.
  • TFT Traffic Flow Template
  • TEID Tunnel End Point Identity
  • the association of the upstream data stream and the TFT is performed by the UE, and the TFT of the downstream data stream is executed by the PGW.
  • each SDF includes at least one IP Flower Filter. Different services are filtered by TFTs to different bearers according to different QoS requirements, and QoS guarantee is realized.
  • the QoS control is performed inside the fixed network according to the DSCP flag.
  • the 3GPP network sets the DSCP value for each IP packet.
  • the network will copy the DSCP value of the inner IP header to the outer IP header to implement the Reverse QoS.
  • Reflective QoS refers to the same QoS mechanism that the QoS mechanism of the uplink data of the fixed network user UE uses its downlink data.
  • the UE creates a DSCP marking rule according to the received downlink data packet, and sets the DSCP value of the IP packet according to the rule when the IP packet is sent.
  • IP A data packet can be simply referred to as an IP packet.
  • the IP packet is a data unit that supports IP protocol communication transmission; the non-IP packet is a data unit that supports transmission of other protocols in addition to supporting IP protocol communication transmission.
  • the present application provides a data transmission control method and device, and configures a structured packet filter to complete classification and processing of data streams, thereby ensuring structured non-IP data packet QoS guarantee.
  • a method for controlling data transmission may include: the policy control function PCF obtains data category identification information and service information, where the service information may be a matching value corresponding to the data category identifier information, a service QoS requirement, and a UE.
  • the service information may be a matching value corresponding to the data category identifier information, a service QoS requirement, and a UE.
  • One or more of the information such as the identifier, the service identifier, the data network name (DNN) of the service, the interface information of the data network where the service is located (such as NG6 tunnel information), and the session type.
  • the data category identification information is used to classify the data packets to be transmitted.
  • the PCF generates a policy and a charging rule (QoS rule) according to the data category identification information and the service information.
  • the policy and charging rule includes a first data packet filter, and the first data packet filter includes data category identification information and matching conditions, and the matching The condition is used to specify a matching relationship between the data category identification information and the corresponding data to be transmitted.
  • the PCF sends a policy and charging rule containing the first packet filter to the control plane node, and the first packet filter is used by the data transmission device to allocate the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the method can be applied to a 5G session establishment or session update scenario.
  • the PCF obtains location information, and sends a QoS rule including data category identification information to the data transmission device through the CPF, and the UE and the UPF according to the corresponding packet filter.
  • the data stream to be transmitted matches different QOS transmission processing mechanisms to implement data stream shunting, which ensures transmission of structured data packets, such as QoS guarantee for non-IP data packets, and the method can quickly determine the data stream and the data stream. Matching improves the speed of data stream transmission and ensures QoS guarantee for transmitting non-IP packets.
  • the matching condition includes operation information and matching information
  • the matching information includes data to be compared.
  • the matching relationship is satisfied that the relationship between the data to be transmitted and the data to be compared conforms to the logical relationship specified in the operation information.
  • the PCF obtains the data category identifier information and the service information, and the PCF receives the data category identifier information and the service information sent by the application function, so that the PCF obtains the data category identifier information and the service information.
  • the PCF obtains the data category identifier information and the service information, where the PCF receives the data category identifier information and the service information sent by the control plane node.
  • the data category identification information and the service information are obtained by the control plane node from the terminal or the unified data management (UDM), so that the PCF obtains the data category identification information and the service information.
  • UDM unified data management
  • the data category identification information includes location information, where the location information is information about a location of one or more fields of the packet header.
  • the PCF generates policy and charging rules according to the data category identification information and the service information, including: the PCF generates a policy and a charging rule according to the location information and the service information.
  • the data category identifier information includes a service quality requirement identifier
  • the service quality requirement identifier is used to indicate the service quality information corresponding to the data packet
  • the PCF generates a policy and a charging rule according to the data category identifier information and the service information.
  • the method includes: the PCF generates a policy and a charging rule according to the service quality requirement identifier and the service information.
  • another method of controlling data transmission may include: controlling a surface node CPF Receiving a policy and charging rule sent by the PCF, the policy and charging rule includes a first data packet filter, the first data packet filter includes data category identification information and a matching condition, and the data category identification information is used to classify the data packet to be transmitted.
  • the matching condition is used to specify a matching relationship between the data category identification information and the corresponding data packet to be transmitted.
  • the CPF sends the data category identification information to the data transmission device, so that the data transmission device transmits the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship, wherein the data transmission device includes a user plane function UPF or a terminal UE.
  • the method can be applied to a 5G session establishment or session update scenario.
  • the PCF obtains location information, and sends a QoS rule including data category identification information to the data transmission device through the CPF, and the UE and the UPF according to the corresponding packet filter.
  • the data stream to be transmitted matches different QOS transmission processing mechanisms to implement data stream shunting, which ensures transmission of structured data packets, such as QoS guarantee for non-IP data packets, and the method can quickly determine the data stream and the data stream. Matching improves the speed of data stream transmission and ensures QoS guarantee for transmitting non-IP packets.
  • the CPF sends the data category identifier information to the data transmission device, where the CPF sends a second packet filter to the UPF, where the second packet filter includes the data category identifier information and the matching condition, and the second The packet filter is used by the UPF to allocate the data packet to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the CPF sends the data category identifier information to the data transmission apparatus, where the control plane node CPF sends a service quality rule to the UE, where the service quality rule includes a third data packet filter, and the third data packet filter
  • the third data packet filter is used by the UE to allocate the data packet to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the CPF sends the data category identifier information to the data transmission apparatus, where the control plane node CPF sends the data category identifier information and the reverse rule to the UE, and the reverse rule is used in the reverse QoS mechanism.
  • the matching condition includes operation information and matching information
  • the matching information includes data to be compared.
  • the matching relationship is satisfied that the relationship between the data to be transmitted and the data to be compared conforms to the logical relationship specified in the operation information.
  • the first data packet filter, the second data packet filter, and the third data packet filter include at least one packet filtering rule, where each data packet filtering rule includes data category identification information and operation information. And matching information; or, each packet filtering rule includes data category identification information and matching information.
  • the method before the control plane node CPF receives the first packet filter sent by the PCF, the method further includes: the control plane node CPF sends the data category identifier information and the service information to the PCF, so that the PCF generates the policy. And billing rules.
  • the method before the control plane node CPF receives the first packet filter sent by the PCF, the method further includes: the control plane node CPF receives the data category identifier information and the service sent by the unified data management entity (UDM). information.
  • the control plane node CPF sends the data category identification information and the service information to the PCF, so that the PCF generates the policy and the charging rule.
  • the method further includes: the control plane node CPF acquires matching priority information of the second data packet filter and matching priority information of the third data packet filter.
  • the matching priority information is used to specify the order of priority matching between the second packet filters when the UPF filters the data to be transmitted, and the priority between the third packet filters when the UE is required to filter the packets to be transmitted. The order of the matches.
  • Control panel The point CPF sends the matching priority information of the second packet filter to the UPF, and sends the matching priority information of the third packet filter to the UE.
  • the data category identification information includes location information, where the location information is information about a location of one or more fields of the service data packet header.
  • the location information includes at least one of relative location information, location offset information, and location sequence format information; the location offset information is used to indicate an offset of a location of the data to be transmitted relative to a start position of the packet header; a relative location The information is used to indicate that the data to be transmitted is located at the location of the data packet; the positioning sequence format information is used to indicate the order of the data to be transmitted relative to the location of the data packet.
  • the data category identifier information includes a quality of service requirement identifier, and the quality of service requirement identifier is used to indicate service quality information corresponding to the service data packet.
  • a method for controlling data transmission may include: acquiring, by a terminal UE, a third data packet filter, where the third data packet filter includes data category identification information and a matching condition, and the matching condition specifies a data category.
  • the UE transmits the to-be-transmitted data packet to the QoS transmission processing mechanism that satisfies the matching relationship according to the third packet filter.
  • the method can be applied to a 5G session establishment or session update scenario.
  • the PCF obtains location information, and sends a QoS rule including data category identification information to the data transmission device through the CPF, and the UE and the UPF according to the corresponding packet filter.
  • the data stream to be transmitted matches different QOS transmission processing mechanisms to implement data stream shunting, which ensures transmission of structured data packets, such as QoS guarantee for non-IP data packets, and the method can quickly determine the data stream and the data stream. Matching improves the speed of data stream transmission and ensures QoS guarantee for transmitting non-IP packets.
  • the terminal UE acquires the third data packet filter, including: the UE receives the quality of service rule sent by the control plane node CPF, and the quality of service rule includes a third data packet filter.
  • the terminal UE acquires the third data packet filter, including: the UE receives the data category identifier information and the reverse rule sent by the interface node CPF, and the reverse rule is used in the reverse QoS mechanism.
  • the third packet filter is obtained according to the data category identifier information and the downlink data packet, so as to simplify the signaling overhead caused by the network side (such as CPF) to deliver the Qos rule to the UE.
  • the matching condition includes operation information and matching information
  • the matching information includes data to be compared.
  • the matching relationship is satisfied that the relationship between the data to be transmitted and the data to be compared conforms to the logical relationship specified in the operation information.
  • the third packet filter includes at least one packet filtering rule, where each packet filtering rule includes data category identification information, operation information, and matching information; or each packet filtering rule includes data. Category identification information and matching information.
  • the method further includes: receiving, by the terminal UE, matching priority information of the third data packet filter, where the matching priority information is used to specify that the UE performs a third data packet filter on the data packet to be transmitted.
  • the order of priority matches between.
  • the terminal transmits the data packet to be transmitted, the terminal matches the data packet to be transmitted according to the matching priority information of the second data packet filter.
  • the data category identification information includes location information, where the location information is information about a location of one or more fields of the service data packet header.
  • the location information includes at least one of relative location information, location offset information, and location sequence format information; the location offset information is used to indicate an offset of a location of the data to be transmitted relative to a start position of the packet header; a relative location The information is used to indicate that the data to be transmitted is located at the location of the data packet; the positioning sequence format information is used to indicate the order of the data to be transmitted relative to the location of the data packet.
  • the data category identifier information includes a quality of service requirement identifier, and the quality of service requirement identifier is used to indicate service quality information corresponding to the service data packet.
  • a method for controlling data transmission may include: a user plane function UPF receiving control plane node CPF sends a second data packet filter, and the second data packet filter includes data category identification information and matching.
  • the condition, the data category identifier information is used to classify the data to be transmitted, and the matching condition is used to specify a matching relationship between the data category identifier information and the corresponding data packet to be transmitted.
  • the UPF allocates the to-be-transmitted data packet to the QoS transmission processing mechanism that satisfies the matching relationship according to the second packet filter.
  • the method can be applied to a 5G session establishment or session update scenario.
  • the PCF obtains location information, and sends a QoS rule including data category identification information to the data transmission device through the CPF, and the UE and the UPF according to the corresponding packet filter.
  • the data stream to be transmitted matches different QOS transmission processing mechanisms to implement data stream shunting, which ensures transmission of structured data packets, such as QoS guarantee for non-IP data packets, and the method can quickly determine the data stream and the data stream. Matching improves the speed of data stream transmission and ensures QoS guarantee for transmitting non-IP packets.
  • the matching condition includes operation information and matching information
  • the matching information includes data to be compared.
  • the matching relationship is satisfied that the relationship between the data to be transmitted and the data to be compared conforms to the logical relationship specified in the operation information.
  • the second packet filter includes at least one packet filtering rule, and each packet filtering rule includes data category identification information, operation information, and matching information.
  • the method further includes: the user plane node UPF receives the matching priority information of the second data packet filter, and the matching priority information is used to specify that the UPF performs the second data packet filtering on the data packet to be transmitted. The order of priority matching between the devices.
  • the user plane node UPF transmits the data to be transmitted, the user plane node UPF matches the data packet to be transmitted according to the matching priority information of the second packet filter.
  • the data category identification information includes location information, where the location information is information about a location of one or more fields of the service data packet header.
  • the location information includes at least one of relative location information, location offset information, and positioning sequence format information; the location offset information is used to indicate an offset of the location of the data relative to the start position of the packet header;
  • the indication order data is located at the position of the data packet; the positioning order format information is used to indicate the order in which the data is arranged relative to the location of the data packet.
  • the data category identifier information includes a quality of service requirement identifier, and the quality of service requirement identifier is used to indicate service quality information corresponding to the service data packet.
  • a network device PCF has the function of implementing the actual PCF behavior of the method of the first aspect described above. This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more functional modules corresponding to the functions described above.
  • a network device CPF has the function of implementing the actual CPF behavior of the method of the first aspect described above. This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more functional modules corresponding to the functions described above.
  • a terminal device UE has the function of implementing the actual UE behavior in the method of the first aspect described above. This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more functional modules corresponding to the functions described above.
  • a network device UPF has the function of implementing the actual UPF behavior of the method of the first aspect described above. This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more functional modules corresponding to the functions described above.
  • the device can include a receiver, a processor, and a transmitter.
  • the receiver is configured to obtain data category identification information and service information, and the data category identifier information is used to classify the data packet to be transmitted.
  • a processor configured to generate a policy and a charging rule according to the data category identification information and the service information, where the policy and the charging rule include a first data packet filter, where the first data packet filter includes the data category identifier information and the matching condition, and the matching The condition is used to specify a matching relationship between the data category identification information and the corresponding data to be transmitted.
  • a transmitter configured to send, to the control plane node, a policy and a charging rule that includes a first data packet filter, where the first data packet filter is used by the data transmission device to allocate the data to be transmitted to a QoS transmission processing mechanism that satisfies a matching relationship.
  • the device can also include a memory.
  • the memory is for coupling with a processor that holds program instructions and data executed by the processor.
  • the matching condition includes operation information and matching information
  • the matching information includes data to be compared.
  • the matching relationship is satisfied that the relationship between the data to be transmitted and the data to be compared conforms to the logical relationship specified in the operation information.
  • the receiver is specifically configured to receive data category identification information and service information sent by the application function.
  • the receiver is specifically configured to receive data category identifier information and service information sent by the control plane node, where the data category identifier information and the service information are control plane nodes from the user equipment (UE) or unified Obtained at the Data Management (UDM).
  • UE user equipment
  • UDM Data Management
  • the data category identification information includes location information, where the location information is information about a location of one or more fields of the packet header.
  • the processor is further configured to generate a policy and a charging rule according to the location information and the service information.
  • the data category identifier information includes a quality of service requirement identifier
  • the quality of service requirement identifier is used to indicate the quality of service information corresponding to the data packet.
  • the processor is further configured to generate a policy and a charging rule according to the service quality requirement identifier and the service information.
  • another network device CPF includes: a receiver and a transmitter.
  • a receiver configured to receive a policy and charging rule sent by the PCF, where the policy and charging rule includes a first data packet filter, the first data packet filter includes data category identification information and a matching condition, and the data category identifier information is used to treat The data packet is classified, and the matching condition is used to specify a matching relationship between the data category identification information and the corresponding data packet to be transmitted.
  • a transmitter configured to send data category identification information to the data transmission apparatus, so that the data transmission apparatus transmits the data to be transmitted to a QoS transmission processing mechanism that satisfies a matching relationship, where the data transmission apparatus includes a user plane function UPF or a terminal UE .
  • the apparatus can also include a memory and a processor.
  • the memory is for coupling with a processor that holds program instructions and data executed by the processor.
  • the transmitter is further configured to send a second data packet filter to the UPF, where the second data packet filter includes data category identifier information and a matching condition, and the second data packet filter is used for the UPF to be configured.
  • the transport packet is allocated to the QoS transport processing mechanism that satisfies the assigned relationship for transmission.
  • the transmitter is further configured to send a QoS rule to the UE, where the QoS rule includes a third packet filter, and the third packet filter includes data category identifier information and a matching condition, where The three-packet filter is used by the UE to allocate the data packet to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the transmitter is further configured to send data category identifier information and a reverse rule to the UE, where the reverse rule is used by the UE to obtain, according to the data category identifier information and the downlink data packet, in the reverse QoS mechanism.
  • the third packet filter is used by the UE to allocate the to-be-transmitted data packet to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the matching condition includes the operation information and the matching information, and the matching information includes the data to be compared; and the matching relationship is that the relationship between the data to be transmitted and the data to be compared conforms to the logical relationship specified in the operation information.
  • the first data packet filter, the second data packet filter, and the third data packet filter include at least one packet filtering rule, where each data packet filtering rule includes data category identification information and operation information. And matching information; or, each packet filtering rule includes data category identification information and matching information.
  • the transmitter is further configured to send data category identification information and service information to the PCF, so that the PCF generates a policy and a charging rule.
  • the receiver is further configured to receive data category identifier information and service information sent by a unified data management entity (UDM);
  • UDM unified data management entity
  • the transmitter is further configured to send data category identification information and service information to the PCF, so that the PCF generates a policy and a charging rule.
  • another terminal device UE includes: a processor and a transmitter.
  • the processor is configured to obtain a third data packet filter, where the third data packet filter includes data category identification information and a matching condition, and the matching condition specifies a matching relationship between the data category identifier information and the corresponding data to be transmitted.
  • a transmitter configured to send, according to the third data packet filter, the data packet to be transmitted to a QoS transmission processing mechanism that satisfies a matching relationship.
  • the device can also include a memory.
  • the memory is for coupling with a processor that holds program instructions and data executed by the processor.
  • the device further includes a receiver, and the receiver is further configured to receive a quality of service rule sent by the control plane node CPF, where the quality of service rule includes a third data packet filter.
  • the receiver is further configured to receive data category identifier information and a reverse rule sent by the control plane node CPF, where the rule is used by the processor according to the data category information and the downlink data packet in the reverse QoS mechanism. Get the third packet filter.
  • the matching condition includes the operation information and the matching information, and the matching information includes the data to be compared; and the matching relationship is that the relationship between the data to be transmitted and the data to be compared conforms to the logical relationship specified in the operation information.
  • the third packet filter includes at least one packet filtering rule, where each packet filtering rule includes data category identification information, operation information, and matching information; or each packet filtering rule includes data. Category identification information and matching information.
  • the receiver is further configured to receive matching priority information of the third data packet filter, where the matching priority information is used to specify that the UE is to transmit the data packet between the third data packet filter.
  • the order of the priority matching; the sender is further configured to: when the user equipment transmits the data packet to be transmitted, match the data packet to be transmitted according to the matching priority information of the second data packet filter.
  • the data category identifier information includes location information, and the location information is service data.
  • the location information includes at least one of relative location information, location offset information, and location sequence format information; the location offset information is used to indicate an offset of a location of the data to be transmitted relative to a start position of the packet header; a relative location
  • the information is used to indicate that the data to be transmitted is located at the location of the data packet; the positioning sequence format information is used to indicate the order of the data to be transmitted relative to the location of the data packet.
  • the data category identifier information includes a quality of service requirement identifier, and the quality of service requirement identifier is used to indicate service quality information corresponding to the service data packet.
  • another network device UPF includes: a receiver and a transmitter.
  • a receiver configured to receive a control plane node CPF to send a second data packet filter, the second data packet filter includes data category identification information and a matching condition, and the data category identifier information is used to classify the data to be transmitted, and the matching condition is used to specify The matching relationship between the data category identification information and the corresponding data packet to be transmitted.
  • a transmitter configured to send, according to the second data packet filter, the data packet to be transmitted to a QoS transmission processing mechanism that satisfies a matching relationship.
  • the device can also include a memory and a processor.
  • the memory is for coupling with a processor that holds program instructions and data executed by the processor.
  • the matching condition includes operation information and matching information, and the matching information includes data to be compared;
  • the matching relationship is satisfied that the relationship between the data to be transmitted and the data to be compared conforms to the logical relationship specified in the operation information.
  • the second packet filter includes at least one packet filtering rule, and each packet filtering rule includes data category identification information, operation information, and matching information.
  • the device further includes a processor, and the receiver is further configured to receive matching priority information of the second data packet filter, where the matching priority information is used to specify that the UPF performs the second transmission of the data packet.
  • a processor configured to: when the user plane node UPF transmits the data to be transmitted, match the data packet to be transmitted according to the matching priority information of the second data packet filter.
  • the data category identifier information includes location information, where the location information is information about a location of one or more fields of the service data packet header; the location information includes relative location information, location offset information, and a positioning sequence. At least one of the format information; the position offset information is used to indicate an offset of the location of the data relative to the start position of the packet header; the relative location information is used to indicate that the data is located at the location of the data packet; the positioning sequence format information is used for Indicates the order in which the data is ranked relative to the location of the packet.
  • the data category identifier information includes a quality of service requirement identifier, and the quality of service requirement identifier is used to indicate service quality information corresponding to the service data packet.
  • a computer program product comprising instructions for causing a computer to perform the methods of the first to fourth aspects described above when the computer program product is run on a computer.
  • a computer readable storage medium stores a computer program that, when executed by the processor, implements the methods of the first to fourth aspects described above.
  • FIG. 1 is a schematic structural diagram of a data transmission control system according to an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of a structured non-IP data packet according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of another structured non-IP data packet according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for controlling data transmission according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for controlling data transmission in a session establishment scenario according to an embodiment of the present invention
  • FIG. 6 is a flowchart of a method for controlling data transmission in a session update scenario according to an embodiment of the present invention
  • FIG. 7 is a flowchart of another method for controlling data transmission in a session update scenario according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of still another method for controlling data transmission in a session update scenario according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a policy control function device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a control plane node device according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a user plane function device according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of another policy control function device according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of another control plane node device according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of another terminal according to an embodiment of the present disclosure.
  • FIG. 16 is a schematic structural diagram of another user plane function device according to an embodiment of the present invention.
  • the present application proposes a protocol-independent quality of service (QoS) transmission processing mechanism, and obtains structured packet filters (SPF) to complete classification and processing of data streams, and solves the problem.
  • QoS quality of service
  • SPF structured packet filters
  • Non-IP packets include structured non-IP packets (such as Ethernet frames) and unstructured non-IP packets, such as bare packets or private protocol packets for Internet of Things (IOT) scenarios.
  • the bare packet here refers to a data packet without a protocol header, starting from the first bit of the packet header is the data information.
  • the packet filter configured in the embodiment of the present application is applicable to a structured IP packet and a structured non-IP packet.
  • the “structured” in the embodiment of the present application means that the data storage manner follows a certain protocol format, and the storage is stored in a binary digit (bit) or a byte.
  • the IEEE 802.3 Ethernet frame header format and the indication information of each field are as shown in the packet format 1.
  • Preamble Frame starter target address source address Length/type Data and fill notes Frame check sequence 7 1 6 6 2 46-1500 4
  • a preamble is used for synchronization, and the occupied field length is 7 bytes;
  • a Start Frame Division is used to indicate that the next byte is the destination media access.
  • Control Media Access Control, MAC
  • the length of the occupied field is 1 byte;
  • the destination MAC address is used for the recipient of the specified frame, the occupied field length is 6 bytes;
  • the source MAC address is used for the obscured frame Sender, occupied
  • the length of the field is 6 bytes;
  • the length/type is used to indicate the length of the data field in the frame or the protocol type of the data in the frame, and the length or type of the field occupied by the field is 2 bytes;
  • Data and Pad is a high-level data, usually a 3-layer protocol data unit, such as an IP packet in TCP/IP, occupying a field length of 46-1500 bytes;
  • FCS frame check sequence
  • Another example is the 802.1Q packet header format, as shown in Table Packet Format 2.
  • the difference from IEEE802.3 is that 802.1Q contains a VLAN tag (VLAN Tag) indicating its multicast VLAN.
  • the length of the 802.1Q VLAN Tag occupation field is 4 bits.
  • the 802.1Q VLAN packet includes a Tag Protocol ID of 0x8100, a User Priority, a Canonical Format Indicator, and a VLAN ID.
  • Another example is the format of the IP packet header, as shown in packet format 3.
  • the version number (Version) in the packet format 3 occupies a field length of 4 bits and is used to indicate the version number of the adopted IP protocol.
  • the general value is 0100 (IPv4) or 0110 (IPv6).
  • the IP header has a minimum length of 20 bytes.
  • the type of service occupied by the Type of Service is 8 bits long.
  • the 8-bit bitwise bit is defined as PPPDTRC0 as follows.
  • PPP defines the priority of the package. The larger the value, the more important the data.
  • Flash Flash Override
  • Network Control (Network Control).
  • D in DTRC0 indicates delay; “T” indicates throughput; “R” indicates reliability; “M” indicates transmission cost; last bit “ 0" reserved, constant at 0.
  • the total length of the IP packet is 16 bits.
  • the length of the IP packet (including the header and data) calculated in bytes, so the maximum length of the IP packet is 65535 bytes.
  • the length occupied by the identifier is 16 bits. This field is used in conjunction with the IPs (Flags) and Fragment Offest fields to perform fragmentation operations on larger upper layer packets. After the router splits a packet, all the split packets are marked with the same value, so that the destination device can distinguish which packet belongs to a part of the split package.
  • IP Flags The fields occupied by the flags (IP Flags) are 3 bits long. The first digit (X) of this field is not used.
  • the second bit is the DF (Don't Fragment) bit. When the DF bit is set to 1, it indicates that the router cannot segment the upper layer data packet. If an upper layer packet cannot be forwarded without fragmentation, the router discards the upper layer packet and returns an error message.
  • the third bit is the MF (More Fragments) bit. When the router segments an upper layer packet, the router sets the MF bit to 1 in the header of the IP packet except the last segment.
  • the second bit "DF" can be abbreviated as "D”
  • the third bit "MF” can be abbreviated as "M”.
  • the Fragment Offset occupies a field length of 13 bits. Indicates the location of the IP packet in the component packet, and the receiving end assembles the restored IP packet by the slice offset.
  • the length of the field occupied by Time To Live (TTL) is 8 bits.
  • TTL Time To Live
  • the length of the field occupied by the protocol is 8 bits. Identifies the protocol used by the upper layer. Commonly used protocols include: Internet Control Message Protocol (ICMP), Internet Group Management Protocol (IGMP), Transmission Control Protocol (TCP), and User Datagram Protocol ( User Datagram Protocol (UDP), Interior Gateway Routing Protocol (IGRP), Open Shortest Path First (OSPF) belong to an Interior Gateway Protocol (IGP), and so on.
  • ICMP Internet Control Message Protocol
  • IGMP Internet Group Management Protocol
  • TCP Transmission Control Protocol
  • UDP User Datagram Protocol
  • IGRP Interior Gateway Routing Protocol
  • OSPF Open Shortest Path First
  • the header length occupied by the Header Checksum is 16 bits. Used to do the correctness detection of the IP header, but does not contain the data part. Because each router wants to change the value of the TTL, the router recalculates this value for each passed packet.
  • Source and Destination Addresses Both fields occupy 32 bits. Identifies the origin and destination address of this IP packet. Note that unless you use Network Address Translation (NAT), these two addresses will not change during the entire transfer.
  • NAT Network Address Translation
  • the IP Options is a variable length field.
  • the structured packet has its header field in the packet.
  • the storage of the packet header is fixed, so the technical solution of the present application is proposed, and the structured packet filter is configured to complete the classification and processing of the data stream, so as to realize the transmission of the non-IP data packet in the 5G network communication data transmission. QoS guarantee.
  • FIG. 1 is a structural diagram of a data transmission control system according to an embodiment of the present application.
  • the system may include: an application function (AF) device, a policy function (PCF) device, a control plane function (CPF) node, a data network (DN), and a user.
  • AF application function
  • PCF policy function
  • CPF control plane function
  • DN data network
  • UPF User plan function
  • AN access network
  • RAN radio accessing network
  • UE user equipment
  • the system can include a UDM.
  • the CPF may include an access and mobility management function (AMF) and a session management function (SMF), and the AMF communicates with the SMF through the tunnel NG11.
  • AMF access and mobility management function
  • SMF session management function
  • AF can be connected to PCF through NG5; PCF can communicate with CPF through NG7; SMF in CPF can communicate with UPF through NG4, and can communicate with UDM through NG10; AMF in CPF can communicate with UE through NG1, and can also pass NG8 Communicate with the UDM; the AMF in the CPF can communicate with the AN through NG2; the AN communicates with the UE, the AN can communicate with the UPF through the NG3; and the UPF can communicate with the DN through the NG3.
  • the UPF and UE can be collectively referred to as a data transmission device.
  • the system described in FIG. 1 can be applied in a scenario of 5G session establishment (service establishment) or session update (service update).
  • the PCF configures QoS rules, and the QoS rules include structured packet filters, for example, packet data units (PDUs) sessions are structured according to a structured PDU session type and unstructured. (Unstructure) PDU types are classified.
  • the QoS rules may include configuring structured packet filters in accordance with the structured PDU session type.
  • SPT rule structured filter rule
  • the structured packet filter may be simply referred to as a packet filter; the structured filter rule may be simply referred to as a packet filter rule.
  • Each packet filter rule may include data category identification information and a matching condition, and the matching condition is used to specify a matching relationship between the data to be transmitted corresponding to the location information and the QoS transmission processing mechanism.
  • the matching condition may include operation or operation information, and matching information (or called match data), and the data category identification information is used to classify the data to be transmitted according to the quality of service.
  • the UE needs to transmit uplink data, and needs to match the packet filter.
  • the SPF rule of the packet filter is SPF rule 1
  • the matching information may be the data category identification information in the structured data packet header in different protocol types, for example, the destination MAC address information, the source MAC address information, or the protocol type in the IP protocol type; the operation information defines a type Logical relationship, the logical comparison relationship is shown in Table 1 to Table 5, which may be greater than, equal to, Less than, greater than or equal to, less than or equal to, and, or hexadecimal conversion; if the relationship between the data packet to be transmitted and the data packet to be compared indicated by the data category identification information conforms to the logical relationship specified in the operation information,
  • the data packet is allocated for data transmission on a quality of service QoS transmission processing mechanism corresponding to the packet filter.
  • the function of the QoS transmission processing mechanism is similar to that of the 4G communication system, the EPS bearer, referred to as the bearer function.
  • the packet filter may include at least one packet filtering rule, each packet filter including data category identification information, operational information, and matching information.
  • each packet filtering rule includes data category identification information and matching information.
  • the data category identification information may include field location information (hereinafter referred to as “location information”) or a quality of service requirement identifier.
  • the quality of service requirement identifier in the packet filter is used to indicate the quality of service information corresponding to the service data packet.
  • the quality of service requirement identifier can be determined through cooperation or agreement between the operator and the content provider.
  • the quality of service requirement identifier is identification information corresponding to the corresponding quality of service carried in one or more fields in the service data packet. That is to say, the operator provides different QoS services for the service data packets carrying different quality service identifiers according to different service quality requirement identifiers.
  • the packet filter allocates the to-be-transmitted data packet to the corresponding QoS transmission processing mechanism for transmission according to different quality of service requirement identification and matching information.
  • the quality of service requirement identifier may be in the header portion of the non-IP packet, as shown in FIG. 2, and the non-IP packet may include the quality of service requirement identifier of the packet header and other information of the packet header (such as length information and version information) as well as the load part. It can be understood that the non-IP data packet can carry the service quality requirement identifier by adding a new field, and the service quality requirement identifier can be placed in the reserved field of the non-IP data packet header, which is not limited herein.
  • the location information in the packet filter is information about the location of one or more fields of the header of the service data packet.
  • the packet filter is based on different location information, operational information, and matching information. Or, according to different location information and matching information, the data packet to be transmitted is allocated to a corresponding QoS transmission processing mechanism for transmission.
  • the location information in the packet filter may be based on an analysis of the existing structured protocol to determine the corresponding location information needed for policy matching determination. For example, the location information of the IP quintuple in the IP protocol, such as the location information of the MAC address in the Ethernet protocol. Or the location information of the key header field of the protocol used by the carrier's own encapsulated data packet. If the operator encapsulates the non-IP packet with the IP protocol, the location information is the location information of the IP quintuple in the IP protocol.
  • the non-IP data may include a header portion and a payload portion.
  • the header portion may include location information and other information (such as length information and version information), wherein the location information may be bit position information of position 1, bit position information of position 2, and bit position information of position n.
  • the packet filter may include at least one packet filtering rule, each packet filter including location information, operational information, and matching information.
  • the configured structured include filters are shown in Table 1.
  • 5 ie 0000 0011
  • 0000 0101 0000 0111 Therefore, the value of 3
  • the operation information is an OR operation (0)
  • the operation information is an AND operation (0)
  • the value of the position in the position information of the tender data packet and the value in the matching information are ANDed with each other, and the result is equal to 101010. match.
  • xor identifies the exclusive OR (xor) in the logical operation.
  • the operation rule is: if the two values of a and b are not the same, the XOR result is 1; if the two values of a and b are the same, the XOR result is 0.
  • the operation information is (exclusive OR (0))
  • the operation information is (exclusive or 0101010), it indicates that the value of the position in the rule in the rule is XORed with the value in the matching information, and the result is equal to 101010, that is, the rule is matched.
  • "0xff" in Table 1 indicates hexadecimal.
  • the packet is matched with other packet filters.
  • the IEEE 802.3 packet header is as shown in packet format 1, in which the preamble, the frame start symbol (SDF), and the frame check sequence (FCS) are processed inside the network card and are not reflected in the upper layer.
  • the packet filter configured for IEEE802.3 can be configured mainly by the target MAC address, the source MAC address, and the protocol type.
  • the configured IEEE802.3 packet filter is as shown in Table 2.
  • the SPF rule 1 and the SPF rule 2 may be respectively from two devices with different MAC addresses, for example, the SPF rule 1 device from the destination MAC address, the SPF rule 2 device from the source MAC address, and the SPF rule 3 may be a protocol type, for example: IP/PPP.
  • the configured packet filter can be as shown in Tables 3 and 4.
  • SPF rule 1 Bit 0-5 Destination MAC address
  • SPF rule 2 Bit 6-11 Source MAC address
  • SPF rule 3 Bit 17-18 agreement type
  • the packet filter configuration of the IP packet is as shown in the packet format 3, and the set packet filter can be as shown in Table 5.
  • the packet filter of the TCP packet can also be set to the form of Table 5, which is not described here.
  • the filter matches the data through the quintuple.
  • the TCP/IP packet matches the packet header (or the header field). The value of the location of the corresponding quintuple.
  • the QoS rule may further include matching priority information of the packet filter, and is used to indicate that the UE and the UPF match the data according to the matching priority information of the packet filter.
  • the UE when the UE needs to transmit uplink data, it determines, according to the matching priority information of the packet filter, which uplink packet data is preferentially matched with the packet filter. If the matching packet filter matches successfully, the UE will uplink data. The uplink data is transmitted by using a bearer corresponding to the packet filter of the priority match. If the uplink data is not successfully matched with the preferentially matched packet filter, the uplink data is matched with the packet filter of the priority ordering secondary in the matching priority information, and the uplink data is matched in turn.
  • the process of matching the downlink data with the data packet filter is the same as the process of matching the uplink data with the data packet filter by the UE, and is not described here.
  • the data transmission control method provided by the embodiment of the present application can effectively guarantee the QoS of the service according to the priority of the service.
  • FIG. 4 is a flowchart of a method for controlling data transmission according to an embodiment of the present invention.
  • the method can include:
  • Step 410 The PCF needs to acquire session information.
  • the session information may include data category identification information and service information, where the service information may be a matching value corresponding to the data category identifier information, a service QoS requirement, a UE identifier, a service identifier, a data network name (DNN) of the service, and a service location.
  • the interface information of the data network such as NG6 tunnel information
  • the data category identification information may include location information or a quality of service requirement identifier.
  • the PCF needs to acquire the session information, and the session information sent by the application function AF can be received by the PCF.
  • the session information sent by the control plane node CPF is received, where the session information may be obtained by the control plane node CPF from the terminal UE or the unified data management UDM. It can be understood that the PCF can also obtain the session information through other network entities, which is not limited herein.
  • Step 420 The PCF generates a policy and a charging control rule (PCC rule) according to the data category identification information and the service information.
  • PCC rule a charging control rule
  • the policy and charging rules may include QoS rules for structured data, the QoS rule may include a first packet filter, and the first packet filter is used by the data transmission device (such as UPF or UE)
  • the transmission data is allocated to the QoS transmission processing mechanism that satisfies the matching relationship for transmission.
  • the first packet filter may include data category identification information and matching conditions.
  • the relationship that satisfies the matching relationship between the data to be transmitted and the data to be compared in the matching condition is in accordance with the logical relationship specified in the operation information.
  • the QoS transmission processing mechanism is a processing mechanism adopted by the control plane node CPF for the QoS Flow Identity (QFI) allocated for the service.
  • the first data packet filter may include a quality of service requirement identifier and a matching condition, or the first data packet filter may include location information and a matching condition.
  • Step 430 The PCF sends a policy and a charging rule including the first packet filter to the CPF.
  • the PCF sends the policy and charging rules containing the first packet filter to the CPF through NG7.
  • the first packet filter may include a quality of service requirement identifier and a matching condition, or the first packet filter may include location information and matching conditions.
  • Step 440 The CPF sends a second packet filter to the UPF according to the policy and the charging rule.
  • the CPF When the CPF detects the quality of service requirement identifier in the first packet filter, the CPF matches the corresponding QFI value according to the matching condition (such as the packet loss rate) to generate a second packet filter.
  • the matching condition such as the packet loss rate
  • the CPF generates a second packet filter according to the location information in the first packet filter and the matching condition (such as the packet loss rate), matching the corresponding QFI value.
  • the second packet filter is used by the UPF to filter the data to be transmitted and then use the QoS transmission processing mechanism of the matching relationship.
  • the CPF sends the second packet filter to the UPF through NG4.
  • the second packet filter may include a quality of service requirement identifier and a matching condition, or the first packet filter may include location information and matching conditions.
  • Step 450 The CPF sends the location information to the UE according to the policy and the charging rule.
  • the CPF sends a QS rule to the UE according to the policy and charging rules.
  • the QoS rule may include a third packet filter, and the third packet filter includes data category identification information and matching conditions.
  • the CPF when the CPF detects the quality of service requirement identifier in the first data packet filter, the CPF matches the corresponding QFI value according to the matching condition (such as the packet loss rate) to generate a third data packet filter.
  • the matching condition such as the packet loss rate
  • the CPF generates a third packet filter according to the location information in the first packet filter and the matching condition (such as the packet loss rate), matching the corresponding QFI value.
  • the second packet filter is used by the UPF to filter the data to be transmitted and then use the QoS transmission processing mechanism of the matching relationship.
  • the UE matches, or filters, the uplink data according to the third packet filter in the Qos rule, and uses the location information, the operation information, and the matching information in the third packet filter.
  • the uplink data is matched, for example, the third packet filter with priority matching is a packet filter of IEEE802.3, the third packet filter includes one SPF rule 2, and the location information of SPF rule 2 is “bit 6-11”;
  • the third packet filter with priority matching is the packet filter 1 of 802.1Q
  • the packet filter 1 includes the SPF rule 1
  • the location information of the SPF rule 1 is "bit 12-14"
  • the UE when the UE matches the uplink data with the third data packet filter, it is not necessary to determine which protocol packet filter is used, and the above priority matching is IEEE802.3.
  • the packet filter, the packet filter 1 of 802.1Q, and the packet filter of the IP packet are merely for explaining the technical solution of the present application by way of specific examples.
  • the uplink data is matched with other SPF rules in the filtering packet. If the uplink data is successfully matched with any SPF rule in the packet filter, the uplink data is matched with the secondary data. The packet filter is matched until the match is successful, and the UE transmits the uplink data by using the bearer corresponding to the SPF rule that is successfully matched.
  • the UE uses the default bearer to transmit the uplink data.
  • the 5G network introduces a reverse refractory QoS mechanism of the fixed network.
  • the CPF sends data category identification information and inversion rules to the UE according to the policy and charging rules.
  • the inversion rule is used in the reverse QoS mechanism to generate derived QoS rules according to the data category identification information and the downlink data packet derivation, and the derivation QoS rules may include a third data packet filter.
  • the third packet filter is used by the UE to allocate the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the QoS rules sent by the CPF to the UE by the signaling are referred to as an explicit QoS rule
  • the QoS rules automatically generated by the UE according to the Reflective QoS mechanism are called implicit QoS rules (or implicit QoS rules).
  • the UE Taking the data category identification information including location information as an example, for the IP data packet, the UE knows the location information of the data packet IP quintuple, and thus can directly pass the IP quintuple (target address, source address, target port, source port). Reverse with the protocol type) to generate the third packet filter in the Derived QoS rule.
  • the information of the data packet in the protocol is unknown to the UE, but the third packet filtering in the generated Derived QoS rule can be obtained by pre-configuring or transmitting the location information through the network through the AF. Device.
  • the data to be transmitted transmitted by the UE may be referred to as uplink data.
  • the uplink data is data that the UE sends to the network side, for example, data that the UE sends to the AN.
  • the data to be transmitted transmitted by the UPF may be referred to as downlink data.
  • the downlink data is data sent by the network side to the UE, such as data sent by the UPF to the UE.
  • the QoS level corresponding to the second packet filter is QFI 1 (DL packet filter->QFI 1).
  • the quintuple of the downlink data packet sent by the UPF to the DN is: source IP address, destination IP address, source port number, destination port number, and protocol type.
  • the source IP address is X
  • the destination IP address is Y
  • the source port number is A
  • the destination port number is B
  • the protocol type (Protocol) Type) is C.
  • the UE receives the downlink data packet delivered by the UPF and the inversion rule and data category identifier information sent by the CPF. Under the Reflective QoS mechanism, the UE corresponds to the downlink data packet according to the location information in the inversion rule and the data category identifier information. The position is reversed to generate a third packet filter.
  • the third packet filter is: the source IP address is Y; the destination IP address is X; the source port number is B; and the destination port number is A; the protocol type is C.
  • the QoS level corresponding to the generated third packet filter is still QFI1 (UL packet filter->QFI 1). If the uplink data packet matches the third data packet filter, the UE transmits the uplink data packet to the UPF through QFI 1.
  • the Reflective QoS mechanism replaces the location of the source IP address and the destination IP address, and swaps the source port number and the destination port number.
  • the CPF may include the service 1, the service 2, and the service 3.
  • the CPF may send a service quality rule for the service 1 to the UE, where the service quality rule includes the service 1 data.
  • Step 460 The UPF allocates the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship according to the second data packet filter.
  • the UPF After receiving the second packet filter, the UPF saves the QoS rule, and performs filtering processing on the data packet sent or received by the DN according to the second packet filter, where the filtering process may include QoS filtering matching of the downlink data and uplink data. Detection.
  • the UPF matches the downlink data according to the SPF rule of the second packet filter, and matches the downlink data by using the location information, the operation information, and the matching information in the SPF rule.
  • the second packet filter with the priority matching includes the SP rule.
  • the process in which the UPF matches the downlink data with the second packet filter is the same as the process in which the UE matches the uplink data with the packet filter, and is not described here.
  • the downlink data is matched with other SPF rules in the filtering packet. If the downlink data matches any SPF rule in the packet filter, the downlink data is matched with the secondary. Package The filter performs matching until the matching is successful, and the UE transmits the uplink data by using the bearer corresponding to the successfully matched SPF rule.
  • the UPF uses the default bearer to transmit the downlink data.
  • the CPF may also obtain matching priority information of the second data packet filter and matching priority information of the third data packet filter, where the matching priority information is used to specify the second data when the UPF filters the data to be transmitted.
  • the control plane node CPF sends the matching priority information of the second packet filter to the UPF, and sends the matching priority information of the third packet filter to the UE.
  • the size of the sequence number of step 440 and step 450 does not mean the order of execution sequence, and the execution order of each process should be determined by its function and internal logic, and should not be addressed.
  • the implementation process of the application embodiment constitutes any limitation.
  • the PCF obtains the data category identification information, and sends a QoS rule including the data category identification information to the data transmission device (UPF and the UE) through the CPF, and the UE and the UPF according to the corresponding
  • the data packet filter matches the data stream to be transmitted to different QOS transmission processing mechanisms to implement data stream shunting, which ensures transmission of structured data packets, such as QoS guarantee for non-IP data packets, and the method can quickly determine data.
  • Streaming, and matching the data stream improves the speed of data stream transmission, and ensures the QoS guarantee for transmitting non-IP data packets.
  • the method for controlling the data transmission provided by the present application differs from the processing method for the 4G transmission data in that, in the technical solution of the present application, the UE and the UPF do not need to know the protocol type to which the transmitted data belongs, and only need to follow the protocol type to which the transmitted data belongs.
  • the location information in the packet filter completes the corresponding operation and determines whether the value after the operation is consistent with the matching information. If the matching is successful, the matching is successful, and the UE or the UPF can use the bearer transmission data corresponding to the matched packet filter.
  • the shunting of the data stream of the data to be transmitted is realized, and the QoS guarantee of the transmitted structured data is realized.
  • the following describes the data category identification information including location information as an example.
  • FIG. 5 is a flowchart of a method for controlling data transmission in a session establishment scenario according to an embodiment of the present invention. As shown in FIG. 5, the method may include:
  • Step 500 The PCF receives the session information sent by the AF.
  • the session information may include structured PDU information, and the structured PDU information may include location information.
  • the service information may include one or more pieces of information such as a matching value corresponding to the location information, a service QoS requirement, a UE identifier, a service identifier, and a data network identifier of the service.
  • the PCF generates a default QoS ruler according to the location information and the service information, and the QoS ruler may include a first packet filter, where the first packet filter includes location information and a matching condition for the UPF or the UE to be used.
  • the transmission data is allocated to the QoS transmission processing mechanism that matches the matching condition that the matching condition satisfies.
  • Step 501 The UE sends a PDU session establishment request to the AMF. A message to indicate the establishment of a PDU session.
  • the PDU session establishment request message may include structured PDU types (such as structured IP data packets and structured non-IP data packets), session ID (Session ID), and Data Network Name (DNN) information. .
  • structured PDU types such as structured IP data packets and structured non-IP data packets
  • Session ID session ID
  • DNN Data Network Name
  • Step 502 The AMF sends a session management request (SM request) message to the SMF.
  • SM request session management request
  • the session management request message may include indication information of the establishment request of the PDU session, a Session ID, a DNN, and the like.
  • the AMF Before performing this step, the AMF needs to perform an SMF selection process to select a target SMF that can perform a PDU session from a plurality of SMFs, and save the correspondence between the Session ID and the SMF ID or the SMF ID address.
  • Step 503 The SMF sends a subscription data request message to the unified data management module (UDM), where the subscription data request may include information such as a DNN, a Session ID, an SMF ID, or an SMF address.
  • UDM unified data management module
  • Step 504 The UDM sends a subscription data response message to the SMF to obtain subscription data of the UE, and implement PDU session authentication/authorization of the UE.
  • Step 505 The SMF sends a PDU-CAN session establishment request message to the PCF.
  • the SMF determines the target PCF based on information such as DNN, Session ID, SMF ID, or SMF address.
  • Step 506 The PCF sends a PDU-CAN session establishment response (PDU-CAN session establishment response) message to the SMF.
  • the PDU-CAN session establishment response message may include a default QoS ruler, where the QoS ruler may include a first packet filter
  • the SMF obtains the first packet filter in the PCF.
  • Step 507 The SMF determines the target UPF according to information such as a DNN, a Session ID, an SMF ID, or an SMF address.
  • the SMF allocates an IP address to the PDU session, and stores the correspondence between the session ID and the IP address.
  • the SMF allocates a tunnel ID and an address for the UPF.
  • Step 508 The SMF sends a PDU-CAN session modification request (PDU-CAN session modification request) message or a PDU-CAN session establishment request message to the PCF.
  • PDU-CAN session modification request PDU-CAN session modification request
  • Step 509 The PCF sends a PDU-CAN session modification response (PDU-CAN session modification response) message or a PDU-CAN session establishment response message to the SMF.
  • PDU-CAN session modification response PDU-CAN session modification response
  • the PDU-CAN session modification response message may include a policy and charging rule, and the policy and charging rule may include a first packet filter.
  • the SMF does not obtain the first packet filter in the PCF in step 506, the first packet filter in the PCF can be obtained through step 509.
  • step 505 to step 507 are performed; if the SMF and the PCF are connected before the session is established, step 505 and step 506 need not be performed, and only step 508 and step need to be performed. 509.
  • Step 510 The SMF sends an N4 session establishment request to the UPF. interest.
  • the SMF generates a second packet filter based on the policy and charging rules.
  • the N4 session establishment request message may include the SMF assigning a tunnel ID and an address to the UPF, and a second packet filter to enable the UPF to acquire the second packet filter.
  • the second packet filter includes location information and matching conditions. The second packet filter is used by the UPF to allocate the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the data to be transmitted may include an uplink data packet and a downlink data packet UPF to match the data to be transmitted with the second data packet filter for the downlink data packet and detect the uplink data packet.
  • Step 511 The UPF sends an N4 session establishment response message to the SMF.
  • Step 512 The SMF sends an SM Response message to the AMF.
  • the SM Response message may include a tunnel ID and address allocated by the SMF for the UPF, PDU session establishment acceptance information sent by the SMF to the UE, location information, and a reverse rule, and the reverse rule is used in the reverse QoS mechanism, the UE according to the location information and the downlink
  • the packet gets the third packet filter.
  • the SM Response message may include a tunnel ID and address allocated by the SMF for the UPF, PDU session establishment acceptance information sent by the SMF to the UE, and a quality of service rule, and the quality of service rule may include a third packet filter.
  • Step 513 The AMF sends an N2 PDU session request message to the AN.
  • the N2PDU session request message may include a tunnel ID and address, location information, and an inversion rule allocated by the SMF for the UPF, and the inversion rule is used by the UE to acquire the third packet filter according to the location information and the downlink data packet in the reverse QoS mechanism.
  • the N2PDU session request message may include a tunnel ID and address allocated by the SMF for the UPF, PDU session establishment acceptance information sent by the SMF to the UE, and a quality of service rule, and the quality of service rule may include a third packet filter.
  • Step 514 The AN and the UE implement an AN-specific resource setup request.
  • the specific resource configuration information of the AN may include the PDU session establishmentaccept information, the QoS rule or the location information, and the reverse rule sent by the SMF to the UE, so that the UE establishes the PDU session with the AN to establish a radio bearer, and the UE obtains the third. Packet filter.
  • the third packet filter includes location information and matching conditions. The third packet filter is used by the UE to allocate the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the UE matches the data to be transmitted with the third packet filter when the UE transmits the data to be transmitted.
  • Step 515 The AN sends an N2 PDU session request Ack message to the AMF.
  • the N2PDU session request Ack may include the tunnel ID and address assigned by the AN.
  • Step 516 The AMF sends a session management request (SM Request) message to the SMF.
  • SM Request session management request
  • the SM Request message may include a tunnel ID and an address assigned by the N2Information and the AN.
  • Step 517 The SMF sends an N4 session modification request to the UPF. interest.
  • the N4 session update request message may include a tunnel ID and an address assigned by the AN.
  • the N4 session update request message may further include a second data packet filter delivered by the PCF, so that the UPF acquires the second data packet filter.
  • the UPF can obtain the second packet filter delivered by the PCF in step 517 to complete the transmission of the downlink data.
  • Step 518 The UPF sends an N4 session modification response message to the SMF to implement the SMF-to-UPF PDU session modification, so that the UPF sends downlink data according to the tunnel ID and address allocated by the RAN.
  • Step 519 The SMF sends a SMresponse with N2Information message to the AMF.
  • step 500 may occur at any time prior to step 505.
  • the execution time of step 500 should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
  • the data transmission control method of the embodiment of the present application by configuring a packet filter of the structured data packet, and transmitting the quality of service QoS rule including the data packet filter to the UE and the UPF, respectively, so that the UE and the UPF respectively.
  • the packet filter filters the transmitted data stream and offloads the data stream to different bearers, ensuring the transmission of structured data packets, such as QoS guarantees for non-IP packets.
  • the PCF obtains the location information, and sends a QoS rule including the location information to the data transmission device (UPF and the UE) through the CPF, and the UE and the UPF are to be configured according to the corresponding packet filter.
  • the transmission data stream matches different QOS transmission processing mechanisms to implement data stream shunting, which ensures transmission of structured data packets, such as QoS guarantee for non-IP data packets.
  • FIG. 6 is a flowchart of another method for controlling data transmission in a session update scenario according to an embodiment of the present invention.
  • the condition for triggering the QOS rule update may be sent by the UE to the PCF through the SMF.
  • the method may include:
  • Step 600 The UE acquires a new service request message.
  • the new service request message may include structured PDU information, and the structured PDU information may include location information and service information, where the service information may include a matching value corresponding to the location information, a service QoS requirement, and a UE.
  • the service information may include a matching value corresponding to the location information, a service QoS requirement, and a UE.
  • the UE may acquire a new service request message by receiving an operation of the user.
  • the user's operation may be that the user opens a new application on the UE.
  • Step 601 The UE sends a PDU session modification request message to the AMF to indicate that the PDU session is updated.
  • the PDU session modification request message may include location information and service information.
  • Step 602 The AMF sends a session management request (SM request) message to the SMF.
  • SM request session management request
  • the SM request message may include indication information and location information and service information of the PDU session update request, Session ID, DNN and other information, so that the SMF obtains location information and business information.
  • Step 603 The SMF obtains update indication information for triggering the QoS Update Trigger according to the indication information, the location information, and the service information of the PDU session update request.
  • Step 604 The AN sends an N2 message to the AMF.
  • the N2 message may include a PDU session ID and session management information (SM information).
  • SM information session management information
  • Step 605 The AMF sends an SM request message to the SMF.
  • the SM request message may include SM information.
  • Step 606 The SMF sends a PDU-CAN session establishment request message to the PCF.
  • the PDU-CAN session establishment request message may include update indication information, location information, and service information.
  • the PCF obtains the updated QoS ruler according to the update indication information, the location information, and the service information, and the updated QoS ruler may include the first packet filter.
  • the first packet filter includes location information and matching conditions for the data transmission device (UPF or UE) to transmit the data to be transmitted to a QoS transmission processing mechanism that matches the matching condition that the matching condition satisfies.
  • Step 607 The PCF sends a PDU-CAN session establishment response message to the SMF.
  • the PDU-CAN session establishment response message may include a policy and charging rule, and the policy and charging rule may be a first packet filter.
  • Step 608 The SMF sends an SM Request message to the AMF.
  • the SM Request message may include a PDU Session Modification Command (Modification Command) information, a session ID, a location information, and an inversion rule.
  • the inversion rule is used in the reverse QoS mechanism to acquire a third packet filtering according to the location information and the downlink data packet. Device.
  • the SM Response message may include a quality of service rule sent by the SMF to the UE, and the quality of service rule may include a third data packet filter.
  • Step 609 The AMF sends an N2 PDU session request message to the AN.
  • the N2PDU session request message may include a PDU Session Modification Command (Modification Command) information, a session ID, a location information, and a reverse rule.
  • the reverse rule is used by the UE to obtain the third data according to the location information and the downlink data packet in the reverse QoS mechanism. Packet filter.
  • the N2PDU session request message may include a quality of service rule sent by the SMF to the UE, and the quality of service rule may include a third data packet filter.
  • Step 610 The AN and the UE implement an AN-specific resource setup request.
  • the specific resource configuration information of the AN may include a PDU Session Modification Command (Modification Command) information, a session ID, a QoS rule or a location information, and an inversion rule, so that the PDU session is established between the UE and the AN to establish a radio bearer, so that the UE acquires
  • the third packet filter includes location information and matching conditions. The third packet filter is used by the UE to allocate the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the UE matches the data to be transmitted with the third packet filter when the UE transmits the data to be transmitted.
  • Step 611 The AN sends an N2PDU session request Ack message to the AMF.
  • the N2PDU session request Ack may include the tunnel ID and address assigned by the AN to the PDU session.
  • Step 612 The AMF sends a session management request response (SM Request ACK) message to the SMF.
  • SM Request ACK session management request response
  • the SM Request ACK may include an N2PDU Session Modification Command ACK.
  • the SM Request with N2Information message may include a tunnel ID and an address assigned by the AN.
  • Step 613 The SMF sends an N4 session modification request message to the UPF.
  • the N4 session modification request message may include a tunnel ID and an address allocated by the AN, and a second packet filter delivered by the PCF, so that the UPF acquires the second packet filter.
  • the UPF When the UPF transmits the data to be transmitted, the UPF matches the data to be transmitted with the second packet filter.
  • Step 614 The UPF sends an N4 session modification response message to the SMF to implement SMF-to-UPF PDU session modification, so that the UPF sends downlink data according to the tunnel ID and address allocated by the RAN.
  • Step 615 establishing a PDU-CAN session modification between the SMF and the PCF.
  • the PCF obtains location information, and sends a QoS rule including location information to the data transmission device (UPF and UE) through the CPF, and the UE and the UPF according to the corresponding packet filter.
  • the data stream to be transmitted is matched to different QOS transmission processing mechanisms to implement data stream splitting, which ensures transmission of structured data packets, such as QoS guarantee for non-IP data packets.
  • FIG. 7 is a flowchart of another method for controlling data transmission in a session update scenario according to an embodiment of the present invention.
  • the condition for triggering the QOS rule update may be stored in the UDM in a pre-configured manner.
  • the method may include:
  • Step 700 The UE sends a PDU session modification request message to the AMF to indicate to modify the PDU session.
  • Step 701 The AMF sends an SM request message to the SMF.
  • the SM request message may include indication information of a PDU session update request.
  • Step 702 The SMF sends a subscription data request message to the UDM.
  • the subscription data request may include information such as a Session ID.
  • Step 703 The UDM sends a subscription data response message to the SMF to obtain subscription data of the UE, and implement PDU session authentication/authorization of the UE.
  • the subscription data response message may include information such as location information, service information, and session ID.
  • the service information may include one or more pieces of information such as a matching value corresponding to the location information, a service QoS requirement, a UE identifier, a service identifier, and a data network identifier of the service.
  • Step 704 The SMF obtains update indication information for triggering the QOS rule according to the indication information, the location information, and the service information of the PDU session update request.
  • the condition that triggers the QOS update can be stored in the UDM in a pre-configured manner, and the PCF obtains the location information through the signaling interaction, and sends the location information through the CPF to the data transmission device.
  • the UPF and the UE respectively send the QoS rule including the location information, and the UE and the UPF match the data stream to be transmitted according to the corresponding data packet filter to different QOS transmission processing mechanisms to implement data stream shunting, thereby ensuring transmission of structured data.
  • FIG. 8 is a flowchart of still another method for controlling data transmission in a session update scenario according to an embodiment of the present invention.
  • the condition for triggering the update of the QOS rule can be sent to the PCF through the AF.
  • the method may include:
  • Step 800 The PCF receives the session information sent by the AF.
  • the session information may include location information and service information, and the service information may include one or more of a matching value corresponding to the location information, a service QoS requirement, a UE identifier, a service identifier, and a data network identifier of the service.
  • the PCF generates a default QoS ruler according to the location information and the service information, and the QoS ruler may include a first packet filter, where the first packet filter includes location information and a matching condition for the UPF or the UE to be used.
  • the transmission data is allocated to the QoS transmission processing mechanism that matches the matching condition that the matching condition satisfies.
  • Step 801 The UE sends a PDU session modification request message to the AMF to indicate that the PDU session is updated.
  • the PDU session establishment request message may include structured PDU types (such as structured IP data packets and structured non-IP data packets), session ID (Session ID), and Data Network Name (DNN) information. .
  • structured PDU types such as structured IP data packets and structured non-IP data packets
  • Session ID session ID
  • DNN Data Network Name
  • Step 802 The AMF sends an SM request message to the SMF.
  • the SM request message may include indication information of the PDU session update request, a Session ID, a DNN, and the like.
  • Step 803 The SMF sends a PDU-CAN session modification request message to the PCF.
  • Step 804 The PCF sends a PDU-CAN session modification response (PDU-CAN session modification response) message to the SMF.
  • PDU-CAN session modification response PDU-CAN session modification response
  • the PDU-CAN session modification response message may include an updated QOS ruler to enable the SMF to obtain an updated QOS ruler, and the updated QOS ruler may include a first packet filter.
  • Step 805 The SMF obtains update indication information for triggering the QOS rule according to the indication information of the PDU session update request and the first packet filter.
  • step 800 may occur at any time prior to step 804.
  • the execution time of step 800 should be determined by its function and intrinsic logic, and should not be construed as limiting the implementation process of the embodiments of the present application.
  • the PCF can obtain the location information by using the AF, and send the QoS rule including the location information to the data transmission device (UPF and the UE) through the CPF, and the UE and the UPF according to the corresponding data.
  • the packet filter implements the offloading of the data stream by matching the data stream to be transmitted to different QOS transmission processing mechanisms, and ensures the transmission of the structured data packet, for example, the QoS guarantee of the non-IP data packet.
  • the embodiment of the present invention further provides a policy control function device, as shown in FIG.
  • the device may include a processing unit 910, a transmitting unit 920, and a receiving unit 930.
  • the receiving unit 930 is configured to obtain data category identification information and service information, where the data category identifier information is used to classify the data packet to be transmitted.
  • the processing unit 910 is configured to generate a policy and charging rule (PCC rule) according to the data category identification information and the service information, where the policy and charging rule includes a first data packet filter, where the first data packet identifier includes data category identifier information. And a matching condition, the matching condition is used to specify a matching relationship between the data category identification information and the corresponding data to be transmitted.
  • PCC rule policy and charging rule
  • the sending unit 920 is configured to send, to the control plane node, a policy and a charging rule that include a first data packet filter, where the first data packet filter is used by the data transmission device to allocate the data to be transmitted to a QoS transmission processing mechanism that satisfies the matching relationship. send.
  • the matching condition includes the operation information and the matching information, and the matching information includes the data to be compared; and the matching relationship is that the relationship between the data to be transmitted and the data to be compared conforms to the logical relationship specified in the operation information.
  • the receiving unit 930 is further configured to receive data category identifier information and service information sent by the application function.
  • the receiving unit 930 is further configured to receive data category identifier information and service information sent by the control plane node.
  • the data category identification information and the service information are obtained by the control plane node from the terminal UE or the unified data management UDM.
  • the data category identification information includes location information, where the location information is information about a location of one or more fields of the packet header.
  • the processing unit 910 generates a policy and a charging rule according to the location information and the service information.
  • the data category identifier information includes a service quality requirement identifier, where the service quality requirement identifier is used to indicate the service quality information corresponding to the data packet, and the processing unit 910 generates a policy and a charging rule according to the service quality requirement identifier and the service information.
  • the embodiment of the present invention further provides a control plane node device.
  • the device may include: a receiving unit 1010 and a sending unit 1020.
  • the receiving unit 1010 is configured to receive a policy and a charging rule sent by the PCF, where the policy and charging rule includes a first data packet filter, where the first data packet filter includes data category identification information and a matching condition, and the data category identifier information is used.
  • the data packet to be transmitted is classified, and the matching condition is used to specify a matching relationship between the data category identification information and the corresponding data packet to be transmitted.
  • the sending unit 1020 is configured to send data category identification information to the data transmission apparatus, so that the data transmission apparatus sends the data to be transmitted to a QoS transmission processing mechanism that satisfies a matching relationship, where the data transmission apparatus includes a user plane function UPF or a terminal. UE.
  • the sending unit 1020 is further configured to send, to the UPF, a second data packet filter, where the second data packet filter includes data category identifier information and a matching condition, and the second data packet filter is used by the UPF to allocate the data packet to be transmitted.
  • the QoS transmission processing mechanism that satisfies the matching relationship is sent.
  • the sending unit 1020 is further configured to send a QoS rule to the UE, where the QoS rule includes a third packet filter, the third packet filter includes data category identifier information and a matching condition, and the third packet filter is used by the third packet filter.
  • the UE transmits the data packet to be transmitted to a QoS transmission processing mechanism that satisfies the matching relationship.
  • the sending unit 1020 is further configured to send data category identifier information and a reverse rule to the UE, where the reverse rule is used by the UE to obtain the third packet filtering according to the data category identifier information and the downlink data packet in the reverse QoS mechanism.
  • the third packet filter is used by the UE to allocate the data packet to be transmitted to the QoS transmission that satisfies the matching relationship.
  • the processing mechanism is sent.
  • the matching condition includes the operation information and the matching information, and the matching information includes the data to be compared; and the matching relationship is that the relationship between the data to be transmitted and the data to be compared conforms to the logical relationship specified in the operation information.
  • the first data packet filter, the second data packet filter, and the third data packet filter include at least one packet filtering rule, where each data packet filtering rule includes data category identification information, operation information, and matching information; or Each packet filtering rule includes data category identification information and matching information.
  • the sending unit 1020 is further configured to send data category identifier information and service information to the PCF, so that the PCF generates a policy and a charging rule.
  • the receiving unit 1010 is further configured to receive data category identifier information and service information sent by a unified data management entity (UDM);
  • UDM unified data management entity
  • the sending unit 1020 is further configured to send data category identification information and service information to the PCF, so that the PCF generates a policy and a charging rule.
  • the receiving unit 1010 is further configured to obtain matching priority information of the second data packet filter and matching priority information of the third data packet filter, where the matching priority information is used to specify that the UPF filters the data to be transmitted.
  • the sending unit 1020 is further configured to send the matching priority information of the second data packet filter to the UPF, and send the matching priority information of the third data packet filter to the UE.
  • the data category identification information includes location information, where the location information is information of a location of one or more fields of the service data packet header; the location information includes at least: relative location information, location offset information, and positioning sequence format information.
  • the position offset information is used to indicate the offset of the location of the data to be transmitted relative to the start position of the packet header; the relative location information is used to indicate that the data to be transmitted is located at the location of the data packet.
  • the positioning order format information is used to indicate the order in which the data to be transmitted is arranged relative to the location of the data packet.
  • the data category identifier information includes a service quality requirement identifier, where the service quality requirement identifier is used to indicate service quality information corresponding to the service data packet.
  • the embodiment of the present invention further provides a terminal.
  • the device may include: a processing unit 1110 and a sending unit 1120.
  • the processing unit 1110 is configured to obtain a third data packet filter, where the third data packet filter includes data category identifier information and a matching condition, where the matching condition specifies a matching relationship between the data category identifier information and the corresponding data to be transmitted.
  • the sending unit 1120 is configured to allocate, according to the third data packet filter, the data packet to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the terminal may further include a receiving unit 1130.
  • the receiving unit 1130 is configured to receive a quality of service rule sent by the control plane node CPF, where the quality of service rule includes a third data packet filter.
  • the receiving unit 1130 is further configured to receive data category identifier information and a reverse rule sent by the control plane node CPF, where the inversion rule is used by the processing unit 1110 according to the data category identifier information and the downlink data packet in the reverse QoS mechanism. Get the third packet filter.
  • the matching condition includes operation information and matching information
  • the matching information includes data to be compared. Satisfy The relationship between the data to be transmitted and the data to be compared corresponds to the logical relationship specified in the operation information.
  • the third data packet filter includes at least one packet filtering rule, where each data packet filtering rule includes data category identification information, operation information, and matching information; or each data packet filtering rule includes data category identification information and matching. information.
  • the terminal may further include a receiving unit 1130, configured to receive matching priority information of the third data packet filter, where the matching priority information is used to specify that the UE is to transmit the data packet between the third data packet filters.
  • a receiving unit 1130 configured to receive matching priority information of the third data packet filter, where the matching priority information is used to specify that the UE is to transmit the data packet between the third data packet filters.
  • Priority matching order ;
  • the processing unit 1110 matches the data packet to be transmitted according to the matching priority information of the second data packet filter.
  • the data category identification information includes location information, where the location information is information of a location of one or more fields of the service data packet header; the location information includes at least: relative location information, location offset information, and positioning sequence format information.
  • the position offset information is used to indicate the offset of the location of the data to be transmitted relative to the start position of the data packet header; the relative location information is used to indicate that the data to be transmitted is located at the location of the data packet.
  • the positioning sequence format information is used to indicate The order in which the data to be transmitted is arranged relative to the location of the packet.
  • the data category identifier information includes a service quality requirement identifier, where the service quality requirement identifier is used to indicate service quality information corresponding to the service data packet.
  • the embodiment of the present invention further provides a user plane function device.
  • the device may include: a receiving unit 1210 and a sending unit 1220.
  • the receiving unit 1210 is configured to receive a control plane node CPF to send a second data packet filter, where the second data packet filter includes data category identifier information and a matching condition, and the data category identifier information is used to classify the data to be transmitted, and the matching condition is used for Specifying a matching relationship between the data category identification information and the corresponding data packet to be transmitted;
  • the sending unit 1220 is configured to allocate, according to the second data packet filter, the data packet to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the matching condition includes the operation information and the matching information, and the matching information includes the data to be compared; and the matching relationship is that the relationship between the data to be transmitted and the data to be compared conforms to the logical relationship specified in the operation information.
  • the second packet filter includes at least one packet filtering rule, and each packet filtering rule includes data category identification information, operation information, and matching information.
  • the apparatus further includes a processing unit 1230,
  • the receiving unit 1210 is further configured to receive matching priority information of the second data packet filter, where the matching priority information is used to specify an order in which the UPF performs a priority matching between the second data packet filters of the data packet to be transmitted;
  • the processing unit 1230 is configured to: when the user plane node UPF transmits the data to be transmitted, match the data packet to be transmitted according to the matching priority information of the second data packet filter.
  • the data category identification information includes location information, where the location information is information of a location of one or more fields of the service data packet header; the location information includes at least: relative location information, location offset information, and positioning sequence format information.
  • a position offset information is used to indicate an offset of the location of the data relative to the start position of the packet header; relative location information is used to indicate that the data is located at the location of the data packet; and the positioning sequence format information is used to indicate the data relative to the data. The order in which the packages are located.
  • the data category identifier information includes a service quality requirement identifier, where the service quality requirement identifier is used to indicate service quality information corresponding to the service data packet.
  • FIG. 13 is a schematic structural diagram of another policy control function device according to an embodiment of the present invention. As shown in FIG. 13, the device may include a processor 1310, a receiver 1320, and a transmitter 1330.
  • the device may also include a memory 1340.
  • the processor 1310 may be a central processing unit (CPU), or a combination of a CPU and a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.
  • Memory 1340 is used to store various applications, operating systems and data.
  • the memory 1340 can transfer the stored data to the processor 1310.
  • the memory 1340 can include volatile memory, such as nonvolatile random access memory (NVRAM), phase change RAM (PRAM), and magnetoresistive random access memory (magetoresistive).
  • NVRAM nonvolatile random access memory
  • PRAM phase change RAM
  • MRAM magnetoresistive random access memory
  • RAM, MRAM, etc. may also include non-volatile memory, such as at least one magnetic disk storage device, electrically erasable programmable read-only memory (EEPROM), flash memory device, such as anti-flash memory (NOR flash memory) or NAND flash memory, semiconductor devices, such as solid state disk (SSD).
  • EEPROM electrically erasable programmable read-only memory
  • flash memory device such as anti-flash memory (NOR flash memory) or NAND flash memory
  • SSD solid state disk
  • Memory 1340 can also include a combination of the above types of memory.
  • the memory 1340 can be integrated in the processor 1310 or can exist independently.
  • the receiver 1320 and the transmitter 1330 may be integrated in the transceiver or may exist independently.
  • the receiver 1320 is configured to obtain data category identifier information and service information, where the data category identifier information is used to classify the data packet to be transmitted.
  • the processor 1310 is configured to generate a policy and charging rule (PCC rule) according to the data category identification information and the service information, where the policy and charging rule includes a first data packet filter, where the first data packet identifier includes data category identifier information. And a matching condition, the matching condition is used to specify a matching relationship between the data category identification information and the corresponding data to be transmitted.
  • PCC rule policy and charging rule
  • the transmitter 1330 is configured to send, to the control plane node, a policy and a charging rule that include a first data packet filter, where the first data packet filter is used by the data transmission device to allocate the data to be transmitted to a QoS transmission processing mechanism that satisfies the matching relationship. send.
  • FIG. 14 is a schematic structural diagram of another control plane node device according to an embodiment of the present invention. As shown in FIG. 14, the device may include a receiver 1410 and a transmitter 1420.
  • the device may further include a memory 1430 and a processor 1440.
  • the processor 1440 may be the same or different in the foregoing processor 1310, and is not limited herein.
  • the receiver 1410 is configured to receive a policy and charging rule sent by the PCF, where the policy and charging rule includes a first data packet filter, where the first data packet filter includes data category identification information and a matching condition, and the data category identifier is The information is used to classify the data packets to be transmitted, and the matching condition is used to specify the matching relationship between the data class identification information and the corresponding data packet to be transmitted.
  • the transmitter 1420 is configured to send data category identification information to the data transmission apparatus, so that the data transmission apparatus sends the data to be transmitted to a QoS transmission processing mechanism that satisfies a matching relationship, where the data transmission apparatus includes a user plane function UPF or a terminal. UE.
  • FIG. 15 is a schematic structural diagram of another terminal according to an embodiment of the present invention. As shown in FIG. 15, the terminal may include a processor 1510 and a transmitter 1520.
  • the terminal may further include a memory 1530 and a receiver 1540.
  • the processor 1530 may be the same or different in the foregoing processor 1310, and is not limited herein.
  • the processor 1510 is configured to obtain a third data packet filter, where the third data packet filter includes data category identifier information and a matching condition, where the matching condition specifies a matching relationship between the data category identifier information and the corresponding data to be transmitted.
  • the transmitter 1520 is configured to allocate, according to the third data packet filter, the data packet to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • FIG. 16 is a schematic structural diagram of another user plane function device according to an embodiment of the present invention. As shown in FIG. 16, the device may include a receiver 1610 and a transmitter 1620.
  • the device may also include a memory 1630 and a processor 1640.
  • the processor 1640 may be the same or different in the foregoing processor 1310, which is not limited herein.
  • the receiver 1610 is configured to receive a control plane node CPF to send a second data packet filter, where the second data packet filter includes data category identification information and a matching condition, and the data category identifier information is used to classify the data to be transmitted, and the matching condition is used for Specifying a matching relationship between the data category identification information and the corresponding data packet to be transmitted;
  • the transmitter 1620 is configured to allocate, according to the second data packet filter, the data packet to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the embodiment of the present invention further provides a computer readable storage medium.
  • a computer program is stored on the computer readable storage medium, the program being executed by the processor.
  • Embodiments of the present invention also provide a computer program product comprising instructions.
  • the processor is caused to perform the method described above with respect to FIG.

Abstract

L'invention concerne un procédé et un dispositif permettant de commander la transmission de données. Le procédé consiste à : acquérir des informations d'identifiant de catégorie de données et des informations de service au moyen d'une fonction de commande de police (PCF), les informations d'identifiant de catégorie de données étant utilisées pour catégoriser des paquets de données de transmission; et, en fonction des informations d'identifiant de catégorie de données et des informations de service, pour créer une police comprenant un premier filtre de paquets de données et une règle de facturation, le premier filtre de paquets de données comprenant les informations d'identifiant de catégorie de données et une condition de mise en correspondance, et la condition de correspondance étant utilisée pour spécifier une relation de correspondance entre les informations d'identifiant de catégorie de données et les données correspondantes à transmettre. La PCF envoie le premier filtre de paquets de données à un nœud de plan de commande, le premier filtre de paquets de données étant utilisé par un appareil de transmission de données pour distribuer des données à transmettre à un mécanisme de traitement de transmission de QoS, qui vérifie une relation de correspondance, puis transmettant les données à transmettre, réalisant une distribution de flux de données, augmentant une vitesse de transmission de données et garantissant une QoS garantie pour une transmission de paquets de données non IP.
PCT/CN2017/097399 2017-01-09 2017-08-14 Procédé et appareil destinés à commander la transmission de données WO2018126692A1 (fr)

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WO2024051443A1 (fr) * 2022-09-09 2024-03-14 维沃移动通信有限公司 Procédé et appareil de détermination de fin de transmission de données, dispositif de communication et support de stockage lisible

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