WO2018126488A1 - Procédé de commande de transmission de données et dispositif de transmission de données - Google Patents

Procédé de commande de transmission de données et dispositif de transmission de données Download PDF

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Publication number
WO2018126488A1
WO2018126488A1 PCT/CN2017/070681 CN2017070681W WO2018126488A1 WO 2018126488 A1 WO2018126488 A1 WO 2018126488A1 CN 2017070681 W CN2017070681 W CN 2017070681W WO 2018126488 A1 WO2018126488 A1 WO 2018126488A1
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data
information
transmitted
matching
location
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PCT/CN2017/070681
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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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Priority to PCT/CN2017/070681 priority Critical patent/WO2018126488A1/fr
Priority to PCT/CN2017/097399 priority patent/WO2018126692A1/fr
Publication of WO2018126488A1 publication Critical patent/WO2018126488A1/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 data transmission control method and a data transmission device.
  • 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 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. Of course, in a wireless network, there are different service accesses, and different QoS rules need to be set to ensure that critical services are guaranteed.
  • 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.
  • IP 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 a data transmission device, which configures a structured packet filter to complete classification and processing of a data stream, realizes data transmission control of a structured non-IP data packet, and ensures a structure.
  • Non-IP packet QoS guarantee is a requirement for a data transmission control method and a data transmission device.
  • an embodiment of the present application provides a data transmission control method, where the control method includes:
  • the packet filter includes location information and filter conditions, and the filter conditions are used to specify The matching relationship between the data to be transmitted corresponding to the location information and the QoS transmission processing mechanism.
  • Sending a data packet filter to a data transmission device (such as a user equipment, a user plane node, etc.), and the 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, and is configured to facilitate the data transmission device.
  • the data packet filter is used to filter the transmitted data, and the transmission data is offloaded, and the structured data packet for the transmission, such as the QoS guarantee of the IP packet, is supported.
  • the filtering condition includes operation information and matching information
  • the matching information includes data to be compared
  • the data packet filter is used by the data transmission device to allocate the data to be transmitted to satisfy
  • the matching relationship in the QoS transmission processing mechanism of 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 data packet filter may include at least one packet filtering rule, and each data packet filter includes Location information, operational information, and matching information.
  • the QoS rule may also
  • the matching priority information of the packet filter is used to indicate that the user equipment or the user plane node matches the transmitted data according to the matching priority information of the packet filter.
  • the QoS provided by the data service with higher priority is ensured by using the solution provided by the embodiment of the present application.
  • the location information includes relative location information, location offset information And positioning order 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 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 transmission device may comprise a user equipment or a user plane node.
  • protocol-independent data classification can be implemented, and a highly scalable QoS control is implemented through a unified QoS mechanism.
  • an embodiment of the present application provides a data transmission control method, where the method includes:
  • the user equipment receives the data packet filter, and the data packet filter includes location information and a filtering condition, where the filtering 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 user equipment When the user equipment transmits the uplink data, the user equipment allocates the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship according to the location information and the filtering condition.
  • the data transmission method provided by the embodiment of the present application does not need to determine the protocol type to which the transmission data belongs, and allocates the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship by using the location information and the filtering condition, thereby ensuring structured data transmission.
  • QoS Quality of Service
  • the filtering condition includes operation information and matching information
  • the matching information includes data to be compared
  • the data packet filter is used by the data transmission device to allocate the data to be transmitted to meet
  • the matching relationship in the QoS transmission processing mechanism of 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 data packet filter may include at least one packet filtering rule, where each packet filtering rule includes Location information, operational information, and matching information.
  • the method may further include:
  • the user equipment When the user equipment transmits the data to be transmitted, the user equipment matches the data to be transmitted according to the matching priority information of the packet filter, thereby ensuring the QoS of the data service with higher priority.
  • the location information includes relative location information, location offset information And at least one of the positioning order format information; the position offset information is used to indicate an offset of the location of the data to be transmitted relative to the start position of the data packet header; and the relative location information is used to indicate that the data to be transmitted is located at 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.
  • an embodiment of the present application provides a data transmission control method, where the method includes:
  • the user plane node receives the packet filter, and the packet filter includes location information and a filter condition, and the filter condition is used to specify a matching relationship between the to-be-transmitted data corresponding to the location information and the QoS transmission processing mechanism.
  • the user equipment node allocates the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship according to the location information and the filtering condition.
  • the data transmission method provided by the embodiment of the present application does not need to determine the protocol type to which the transmission data belongs, and allocates the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship by using the location information and the filtering condition, thereby ensuring structured data transmission.
  • QoS Quality of Service
  • the filtering condition includes the operation information and the matching information
  • the matching information includes the data to be compared
  • the data packet filter is used by the data transmission device to allocate the data to be transmitted to satisfy
  • the matching relationship in the QoS transmission processing mechanism of 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 packet filter includes at least one packet filtering rule, where each packet filtering rule includes location information, Operational information, as well as matching information.
  • the method further includes:
  • the matching priority information of the data packet filter is received, and the matching priority information is used to specify an order in which the data transmission device preferentially matches the data to be transmitted.
  • the user plane node When the user plane node transmits the data to be transmitted, the user plane node matches the data to be transmitted according to the matching priority information of the packet filter to ensure the QoS of the data service with higher priority.
  • the location information includes the relative location information, the location offset information, and the location sequence format information One less position; 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 for Indicates the order in which the data to be transmitted is arranged relative to the location of the packet.
  • the embodiment of the present application provides a data transmission device, where the data transmission device is a control plane node, and the control plane node includes:
  • the obtaining unit is configured to obtain a data packet filter, where the data packet filter includes location information and a filtering condition, where the filtering condition is used to specify a matching relationship between the to-be-transmitted data corresponding to the location information and the QoS transmission processing mechanism.
  • a sending unit configured to send a data packet filter to the data transmission device, where the 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 transmission data is offloaded, and the structured data packet for the transmission, such as the QoS guarantee of the IP packet, is supported.
  • the filtering condition includes operation information and matching information
  • the matching information includes data to be compared
  • the data packet filter is used by the data transmission device to allocate the data to be transmitted to meet
  • the matching relationship in the QoS transmission processing mechanism of 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 packet filter includes at least one packet filtering rule, and each packet filter includes Location information, operational information, and matching information.
  • the obtaining unit is further configured to obtain matching priority information of the packet filter, where the matching priority information is used to specify an order in which the data transmission device preferentially matches the data to be transmitted.
  • the sending unit is further configured to send the matching priority information to the data transmission device, where the matching priority information is used to instruct the data transmission device to match the data to be transmitted according to the matching priority information of the packet filter, thereby ensuring the data with higher priority.
  • the QoS of the service is further configured to send the matching priority information to the data transmission device, where the matching priority information is used to instruct the data transmission device to match the data to be transmitted according to the matching priority information of the packet filter, thereby ensuring the data with higher priority.
  • the location information includes relative location information, location offset information, and positioning 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; the relative location information is used to indicate 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.
  • protocol-independent data classification can be implemented quickly, and a highly scalable QoS control is implemented through a unified QoS mechanism.
  • the data transmission apparatus comprises a user equipment or a user plane node.
  • the embodiment of the present application provides a data transmission device, where the data transmission device can be a user equipment, and the user equipment includes: a receiving unit and a processing unit.
  • the receiving unit is configured to receive a data packet filter, where the data packet filter includes location information and a filtering condition, where the filtering condition is used to specify a matching relationship between the to-be-transmitted data corresponding to the location information and the QoS transmission processing mechanism.
  • the processing unit allocates the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship according to the location information and the filtering condition.
  • the data transmission apparatus does not need to determine the protocol type to which the transmission data belongs, and allocates the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship by using the location information and the filtering condition, thereby ensuring structured data transmission.
  • QoS Quality of Service
  • the filtering condition includes the operation information and the matching information
  • the matching information includes the data to be compared
  • the data packet filter is used by the data transmission device to allocate the data to be transmitted to satisfy
  • the matching relationship in the QoS transmission processing mechanism of 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 data packet filter includes at least one packet filtering rule, where each packet filtering rule includes a location Information, operational information, and matching information.
  • the receiving unit is further configured to receive matching priority information of the data packet filter, where the matching priority information is used to specify an order in which the data transmission device preferentially matches the data to be transmitted;
  • the processing unit matches the data to be transmitted according to the matching priority information of the packet filter, thereby ensuring the QoS of the data service with higher priority.
  • the location information includes relative location information, location offset information, and Locating at least one of the positioning order format information; the position offset information is used to indicate an offset of the location of the data to be transmitted relative to the start position of the data packet header; and 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.
  • an embodiment of the present application provides a data transmission apparatus, where the data transmission apparatus may be a user plane node, where the user plane node includes a receiving unit, a processing unit, and a sending unit.
  • the receiving unit is configured to receive a data packet filter, where the data packet filter includes location information and a filtering condition, where the filtering condition is used to specify a matching relationship between the to-be-transmitted data corresponding to the location information and the QoS transmission processing mechanism.
  • the processing unit location information and the filtering condition distribute the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship.
  • the data transmission apparatus does not need to determine the protocol type to which the transmission data belongs, and allocates the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship by using the location information and the filtering condition, thereby ensuring structured data transmission.
  • QoS Quality of Service
  • the filtering condition includes the operation information and the matching information
  • the matching information includes the data to be compared
  • the data packet filter is used by the data transmission device to allocate the data to be transmitted to satisfy
  • the matching relationship in the QoS transmission processing mechanism of 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 data packet filter includes at least one packet filtering rule, where each packet filtering rule includes a location Information, operational information, and matching information.
  • the receiving unit is further configured to receive matching priority information of the data packet filter, where the matching priority information is used to specify an order in which the data transmission device preferentially matches the data to be transmitted.
  • the processing unit matches the downlink data according to the matching priority information of the packet filter.
  • 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 a location of the data to be transmitted relative to a 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 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 transmission control method and the data transmission device thereof by configuring a structured data packet filter, and transmitting the data packet filter to the data transmission device, when the data transmission device transmits the data to be transmitted, There is no need to know the protocol type of the data to be transmitted, and the data to be transmitted can be allocated to different QoS transmission processing mechanisms for transmission through the packet filter, thereby ensuring the QoS of the structured data.
  • FIG. 1 is a system frame diagram provided according to an embodiment of the present application.
  • FIG. 2 is a flowchart of a method for controlling data transmission according to an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a device according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of another device according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of another device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a control plane node according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a user plane node according to an embodiment of the present application.
  • the application provides a data transmission control method and a data transmission device thereof.
  • a protocol-independent Quality of Service (QoS) transmission processing mechanism is proposed.
  • QoS Quality of Service
  • SPF structured packet filters
  • the 5G network is solved.
  • different packet filters correspond to different QoS rule control of the network.
  • 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 the packet without the protocol header, starting from the first bit of the packet header. It 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.
  • a preamble is used for synchronization, and the occupied field length is 7 bytes; a Start Frame Division (SDF) is used to indicate that the next byte is the destination media access.
  • Control Media Access Control, MAC address, 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
  • the length of the field occupied by the sender 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.
  • the length or type of the field is 2 fields.
  • data and pad are high-level data, usually 3-layer protocol data units, such as IP packets in TCP/IP, occupying field lengths of 46-1500 bytes; frame check A frame check sequence (FCS) is used to provide a method for determining whether a transmission error is transmitted to a receiving network card. If an error is found, the frame is discarded, and the occupied field length is 4 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. Therefore, the technical solution of the present application is proposed, and a structured packet filter is configured to complete classification and processing of the data stream to implement QoS for transmitting non-IP data packets in 5G network communication data transmission. Guarantee.
  • FIG. 1 is a system architecture diagram of an embodiment of the present application.
  • the system includes a Policy Function device 110, a Control Plane (CP) node 120, a user equipment 130, a user plane node 140, and an Access Network (AN) 150.
  • the policy function device 110 is required to configure QoS rules, and the QoS rules include structured packet filters.
  • a Packet Data Unit (PDU) session is classified according to a structured PDU session type and an Unstructured PDU type.
  • the QoS rules may include configuring structured packet filters in accordance with the structured PDU session type.
  • the configured structured include filters are shown in Table 1.
  • SPT rule structured filter rule
  • 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.
  • 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 location information, operation or operation information, and matching information (or called match data).
  • the policy function device 110 sends the QoS rule to the CP 120.
  • the CP 120 sends the QoS rule to the UE 130 and the UP 140 through the NG1 interface and the NG4 interface.
  • the CP 120 may also send the QoS rule to the AN 150 through the NG2 interface.
  • the AN 150 is used to provide wireless access services for the UE 130.
  • the AN 150 may be a base station eNodeB, an access point (AP), etc., but is not limited thereto.
  • the UE 130 and the UP 140 save the QoS rules after receiving the QoS rules.
  • the data stream is matched with different SPFs to determine the QoS used to transmit the data stream, and the data stream is shunted to ensure the QoS control of the data stream.
  • 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 UE transmits the uplink data by using the bearer corresponding to the SPF rule 1.
  • FIG. 2 is a flowchart of a method for controlling data transmission according to an embodiment of the present application. As shown in FIG. 2, the method may include the following steps:
  • the data packet filter includes location information and a filtering condition, where the filtering 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 filtering condition may include operation information and matching information, and the matching information includes data to be compared, and the filtering condition is satisfied when the relationship between the data to be transmitted and the data to be compared conforms to the logical relationship specified in the operation information. It can be said that the matching condition is satisfied.
  • the location information indicates the data to be transmitted at the location indicated by the location information in the to-be-transmitted data packet, and the matching information may be information of a specific location in the structured data packet header in different protocol types, such as an IP protocol type.
  • 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 location information in the packet filter may be based on an analysis of an existing structured protocol to determine 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 matching information in the packet filter may be based on an analysis of the existing structured protocol and a specific policy to determine corresponding matching information related to the location information required for the policy matching judgment. For example, this policy provides a unified QoS guarantee for all data flows accessing the A server, and then the matching information is the IP address of the A server.
  • the location information is location information where the source node is located in the IP protocol
  • the location information is location information where the UE is the destination address in the IP protocol.
  • the packet filter may include at least one packet filtering rule, each packet filter including location information, operational information, and matching information.
  • the packet is matched with other packet filters.
  • the packet filter configured by the policy function device in FIG. 1 may be used, and the control plane node CP receives the quality of service QoS rule sent by the policy function device, where the QoS rule includes the configured packet filter.
  • control plane node may obtain the QoS rule from the policy function device, which is not limited in this embodiment.
  • the configured packet filter can be set according to requirements.
  • 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 IEEE 802.3 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 filters can be as shown in Tables 3 and 4.
  • the packet filter configuration of the IP data packet, the packet header format of the IP data packet is as shown in the data 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 (target address, source address, target port, source port, and protocol type).
  • TCP The /IP packet matches the value of the location of the corresponding quintuple in the packet header (or header field).
  • the control plane node sends a quality of service QoS rule to the data transmission device, the QoS rule including a packet filter.
  • the data transmission device can be a user equipment and a user plane node.
  • the control plane node sends the acquired QoS rules to the user equipment UE and the user plane node UP respectively, so that when the UE and the UP need to transmit data, the data to be transmitted is matched with the data packet filter to implement data of the data to be transmitted.
  • the shunting of the flow guarantees the QoS guarantee of the data to be transmitted.
  • the UE and the UP respectively save the received QoS rule.
  • the QoS rule includes a packet filter, and the packet filter may include at least one packet filter rule (SPF rule).
  • the SPF rule can include location information, operation or operation information, and matching information.
  • the data to be transmitted transmitted by the user equipment 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 UE matches the uplink data according to the SPF rule of the packet filter, or filters, and matches the uplink data by using the location information, the operation information, and the matching information in the SPF rule, for example, the packet filter whose priority is matched is the IEEE802.3 packet.
  • the packet filter with priority matching is the packet filter 1 of 802.1Q
  • 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 user equipment transmits the data to be transmitted by using a QoS transmission processing mechanism corresponding to the packet filter to which the data to be transmitted is matched.
  • the user plane node When the user plane node transmits the data to be transmitted, the user plane node matches the data to be transmitted with the packet filter.
  • the data to be transmitted may be referred to as downlink data.
  • the downlink data is data sent by the network side to the UE, for example, data sent by the UP to the UE.
  • the UP matches the downlink data according to the SPF rule of the packet filter, and matches the downlink data by using the location information, the operation information, and the matching information in the SPF rule.
  • the process in which the UP matches the downlink data with the packet filter is the same as the process in which the UE matches the uplink data with the packet filter. For brevity, it will not be 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. 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 UP uses the default bearer to transmit the downlink data.
  • the user plane node transmits the data to be transmitted by using a bearer corresponding to the packet filter to which the data to be transmitted is matched.
  • S220 and S230, S240 and S250, and S260 and S270 are not meant to be sequential, and the execution order of each process should be based on its function and internality.
  • the logic is determined without 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 user equipment and the user plane node respectively, so as to facilitate the user equipment and
  • the user plane node filters the transmitted data stream according to the packet filter, and distributes the data stream to different bearers for transmission, thereby ensuring transmission of structured data packets, such as QoS guarantee of non-IP data packets.
  • the method for controlling data transmission is different from the method for processing data transmitted by 4G.
  • the UE and the UP do not need to know the protocol type to which the transmitted data belongs. According to the location information in the packet filter, the corresponding operation is performed, and the value of the operation is consistent with the matching information. If the matching is successful, the matching is successful, and the UE or the UP can use the bearer transmission data corresponding to the matched SPF rule. 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 QoS rule may further include matching priority information of the packet filter, and is used to indicate that the user equipment or the user plane node matches the data according to the matching priority information of the packet filter.
  • the UE when the UE needs to transmit the uplink data, it determines, according to the matching priority information of the packet filter, which packet filter is preferentially matched with the packet filter. If the packet matching with the preferential matching succeeds, the UE preferentially matches the uplink data. The corresponding packet of the packet filter transmits the uplink data. If the uplink data does not match the packet filter that matches the priority match, 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 packet filter is the same as the process of matching the uplink data with the 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.
  • the location information may include 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 relative to the start of the packet header.
  • the data does not start from the first bit of the packet header, but starts from the 4th bit of the packet header, and the position offset information is 3 bits.
  • Relative location information is used to indicate where the data is located in the packet. For example: the data is located in the 8-15th bit of the 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. For example, the location of the data is located in the positioning order format from the left to the right of the packet header. If the relative position information is the sixth bit, the position of the sixth bit is located from left to right, and the data of the sixth bit is determined.
  • data can be quickly determined, and the data is matched, the speed of data transmission is improved, and the QoS guarantee for transmitting non-IP data packets is guaranteed.
  • control method of the data transmission provided by the embodiment of the present application is described in detail in FIG. 2 above.
  • the apparatus provided in the embodiment of the present application namely, the control plane node, the user equipment and the user plane node, are described in detail below with reference to FIGS.
  • FIG. 3 is a device provided by an embodiment of the present application, and the device may be a control plane node, that is, the CP 120 in FIG. 1 .
  • the control plane node may include an obtaining unit 310 and a transmitting unit 320. among them,
  • the obtaining unit 310 may be a receiving unit or a receiver;
  • the sending unit 320 may be a transmitter.
  • the obtaining unit 310 is configured to acquire a data packet filter, where the data packet filter includes location information and a filtering condition, where the filtering condition is used to specify a matching relationship between the to-be-transmitted data corresponding to the location information and the QoS transmission processing mechanism. .
  • the sending unit 320 is configured to send a data packet filter to the data transmission device, where the 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.
  • the data transmission device can be a user equipment and/or a user plane node.
  • the filtering condition includes the operation information and the matching information, where the matching information includes the data to be compared, and the filtering condition is met when the relationship between the data to be transmitted and the data to be compared meets the logical relationship specified in the operation information. It can also be said to satisfy the matching condition.
  • the obtaining unit 310 acquires a QoS rule from the policy function device (such as the policy function device 110 in FIG. 1), and the rule includes a configured packet filter.
  • the acquiring unit 310 may obtain multiple QoS rules, and each QoS rule performs data transmission through a specific QoS transmission processing mechanism, and each QoS rule includes a packet filter corresponding thereto, and each The packet filter includes location information, operation information and matching information, so as to match the data to be transmitted through the packet filter, and determine the QoS rules used for transmitting the data to complete the QoS guarantee of the data transmission.
  • the packet filter includes location information, operation information and matching information, so as to match the data to be transmitted through the packet filter, and determine the QoS rules used for transmitting the data to complete the QoS guarantee of the data transmission.
  • the function of the QoS transmission processing mechanism is similar to the EPS bearer in the 4G communication system, which is referred to as the bearer function.
  • the location information may include relative location information, location offset information, and positioning format information.
  • the relative position information is used to indicate the 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 to indicate the location of the data relative to the location of the data packet. Order.
  • the acquiring unit 310 may receive the QoS rule sent by the policy function device, where the QoS rule includes a packet filter.
  • the packet filter may include at least one packet filtering rule, where each packet filter includes the location information, the operation information, and the matching information.
  • the QoS rule acquired by the obtaining unit 310 may further include matching priority information of the packet filter, and is used to instruct the data transmission device to match the data according to the matching priority information of the packet filter.
  • control plane node may further include a storage unit 330, configured to store the QoS rule acquired by the obtaining unit 310.
  • storage unit 330 may be a memory.
  • the QoS rule is respectively sent to the user equipment and the user plane node, so that when the user equipment and the user plane node transmit data, the data to be transmitted is filtered by the packet filter included in the QoS rule.
  • the packet filter included in the QoS rule To achieve the offloading of data streams and to achieve unstructured data packets, such as QoS guarantees for IP packets.
  • FIG. 4 is another device provided by the embodiment of the present application, and the device may be a user equipment, such as the user equipment 130 in FIG. 1 .
  • the user equipment may include a receiving unit 410 and a processing unit 420.
  • the receiving unit 410 may be a receiver
  • the processing unit may be a processor
  • the sending unit may be a transmitter.
  • the receiving unit 410 is configured to receive a data packet filter, where the data packet filter includes location information and a filtering condition, where the filtering condition is used to specify a matching relationship between the to-be-transmitted data corresponding to the location information and the QoS transmission processing mechanism.
  • the processing unit 420 allocates the data to be transmitted to the QoS transmission processing mechanism that satisfies the matching relationship according to the location information and the filtering condition. .
  • the receiving unit 410 of the user equipment receives the QoS rule sent by the control plane node, where the QoS rule includes a packet filter.
  • each packet filter may include at least one packet filtering rule, and each packet filtering rule includes location information, operation information, and matching information.
  • the location information may further include relative location information, location offset information, and positioning format information.
  • the relative position information is used to indicate the 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 to indicate the location of the data relative to the location of the data packet. Order.
  • the user equipment 130 may further include a sending unit 430, configured to send data to be transmitted.
  • the user equipment may further include a storage unit 440, configured to store the received QoS rules.
  • the storage unit 440 can be a memory.
  • the processing unit 420 of the user equipment matches the uplink data to be transmitted with the packet filter.
  • the specific matching process please refer to the description of S240 in FIG. 2 for brevity, and details are not described herein again.
  • the sending unit 430 of the user equipment transmits the uplink data through the bearer corresponding to the matched packet filter, completes the offloading of the data stream, and completes the QoS guarantee of the structured data packet.
  • the QoS rule further includes matching priority information of the packet filter, where the matching priority information is used to indicate that the user equipment matches the uplink data according to the matching priority information of the packet filter.
  • FIG. 5 is another apparatus provided by an embodiment of the present application.
  • the device may be a user plane node, and the node may be the user plane node 140 in FIG. 1 .
  • the user plane node may include a receiving unit 510 and a processing unit 520.
  • the receiving unit 510 may be a receiver
  • the processing unit 520 may be a processor
  • the sending unit 530 may be a transmitter.
  • the receiving unit 510 is configured to receive a data packet filter, where the data packet filter includes location information and a filtering condition, where the filtering condition is used to specify a matching relationship between the to-be-transmitted data corresponding to the location information and the QoS transmission processing mechanism.
  • the processing unit 520 location information and the filtering condition allocate the to-be-transmitted data to a QoS transmission processing mechanism that satisfies the matching relationship.
  • the receiving unit 510 receives the QoS rule sent by the control plane node, where the QoS rule may be multiple, each QoS rule includes a packet filter corresponding thereto, and the packet filter may include at least one packet. Filtering rules, each packet filtering rule includes location information, operation information, and matching information, which are used to match the transmitted downlink data to implement QoS guarantee for downlink data.
  • the user plane node 140 may further include a sending unit 530, configured to send data to be transmitted.
  • the user plane node may further include a storage unit 540 for storing the QoS rule received by the receiving unit 510.
  • the storage unit 540 may be a memory.
  • the processing unit 520 of the user plane node matches the downlink data with the packet filter.
  • the specific matching process refer to the detailed description of S260 in FIG. 2, which is not described here for brevity.
  • the sending unit 530 of the user equipment transmits the downlink data through the bearer corresponding to the matched packet filter, completes the offloading of the data stream, and implements the QoS guarantee of the structured data packet.
  • the QoS rule further includes matching priority information of the packet filter, where the matching priority information is used to indicate that the user equipment matches the uplink data according to the matching priority information of the packet filter.
  • FIG. 6 is a schematic structural diagram of a control plane node according to an embodiment of the present application. As shown in FIG. 6, the control plane node may include a receiver 610 and a transmitter 620.
  • the receiver 610 is configured to obtain a data packet filter, where the data packet filter includes location information and a filtering condition, where the filtering condition is used to specify a matching relationship between the to-be-transmitted data corresponding to the location information and the QoS transmission processing mechanism.
  • a transmitter 620 configured to send the data packet filter to a data transmission apparatus, where the data packet filter is configured to send, by the data transmission apparatus, the to-be-transmitted data to a QoS transmission processing mechanism that satisfies the matching relationship .
  • the data transmission device may comprise a user equipment and/or a user plane node.
  • the receiver 610 may receive a policy function device, such as the policy function device 110 shown in FIG. 1, and send a QoS rule, where the rule may include a configured packet filter and the received QoS.
  • the rules are sent to the user equipment and the user plane node, so that the user equipment or the user plane node filters the transmitted data by using a packet filter to implement QoS control on the transmission data.
  • the specific process of performing packet filtering on the transmission data by using the location information, the operation information, and the matching information in the packet filter refer to the specific descriptions of S240 and S260 in FIG. 2, for the sake of brevity, no longer here. Narration.
  • control plane node provided by the embodiment of the present application may complete the method steps of S210, S220, and S230 in FIG.
  • control plane node provided in FIG. 3 can perform the method steps S210, S220, and S230 of FIG. 2 through the control plane node of FIG.
  • the location information may include relative location information and location offset information.
  • positioning format information is used to indicate the 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 to indicate the location of the data relative to the location of the data packet. Order.
  • the technical solution provided by the application can speed up the determination of the data corresponding to the location information, and further accelerate the data transmission.
  • the QoS rule may further include matching priority information of the packet filter, and is used to indicate that the user equipment or the user plane node matches the data according to the matching priority information of the packet filter.
  • the QoS of the higher priority business data is guaranteed.
  • FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • the user equipment can include a receiver 710, a processor 720, and a transmitter 730.
  • the receiver 710 is configured to receive a data packet filter, where the data packet filter includes location information and a filtering condition, where the filtering condition is used to specify a matching relationship between the data to be transmitted and the QoS transmission processing mechanism corresponding to the location information.
  • the processor 720 allocates the to-be-transmitted data to the QoS transmission processing mechanism that satisfies the matching relationship according to the location information and the filtering condition.
  • the transmitter 730 is configured to send data to be transmitted.
  • the packet filter may include location information, operation information, and matching information, so that the user equipment filters the uplink data according to the location information, the operation information, and the matching information included in the packet, and the specific matching process is performed.
  • the user equipment provided by the embodiment of the present application can filter the uplink data by using a packet filter, and does not need to consider the protocol type of the uplink data, and directly performs uplink data according to the indication information of the packet filter, that is, the location information, the operation information, and the matching information. Filtering ensures QoS for structured data.
  • the user equipment provided in FIG. 7 can complete the methods/steps of S240 and S250 in FIG. 2.
  • the method and the steps of S240 and S250 in FIG. 2 are also completed by the user equipment provided in FIG. 7 for the sake of brevity, and are not described herein again.
  • the filtering condition includes the operation information and the matching information
  • the matching information includes the data to be compared
  • the filtering is satisfied when the relationship between the data to be transmitted and the data to be compared meets the logical relationship specified in the operation information.
  • Conditions can also be referred to as satisfying matching conditions.
  • the packet filter may include at least one packet filtering rule, where each packet filtering rule includes the location information, the operation information, and the matching information.
  • the location information may include relative location information, location offset information, and positioning format information.
  • the relative position information is used to indicate the 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 to indicate the location of the data relative to the location of the data packet. Order.
  • the technical solution provided by the application can speed up the determination of the data corresponding to the location information, and further accelerate the data transmission.
  • the QoS rule may further include matching priority information of the packet filter, and is used to indicate that the user equipment or the user plane node matches the data according to the matching priority information of the packet filter.
  • the QoS of the higher priority business data is guaranteed.
  • FIG. 8 is a schematic structural diagram of a user plane node according to an embodiment of the present application.
  • the user plane node may include a receiver 810, a processor 820, and a transmitter 830.
  • the receiver 810 is configured to receive a data packet filter, where the data packet filter includes location information and a filtering condition, where the filtering condition is used to specify a matching relationship between the to-be-transmitted data corresponding to the location information and the QoS transmission processing mechanism.
  • the processing unit 820 location information and the filtering condition allocate the data to be transmitted to a QoS transmission processing mechanism that satisfies the matching relationship.
  • the transmitter 830 is configured to send data to be transmitted. .
  • the packet filter may include location information, operation information, and matching information, so that the user equipment filters the downlink data according to the location information, the operation information, and the matching information included in the packet filter, and the specific matching process may be performed. Referring to the detailed description of S260 in FIG. 2, for brevity, it will not be repeated here.
  • the user plane node provided by the embodiment of the present application can filter the downlink data by using a packet filter, and does not need to consider the protocol type of the downlink data, and directly according to the indication information of the packet filter, that is, the location information, the operation information, and the matching information to the downlink data. Filtering ensures QoS for structured data.
  • the user equipment provided in FIG. 8 can complete the methods/steps of S260 and S270 in FIG. 2.
  • the method and the steps of S260 and S270 in FIG. 2 are also completed by the user plane nodes provided in FIG. 8 for the sake of brevity, and are not described herein again.
  • the filtering condition includes the operation information and the matching information, where the matching information includes the data to be compared, and the filtering condition is met when the relationship between the data to be transmitted and the data to be compared meets the logical relationship specified in the operation information. It can also be said to satisfy the matching condition.
  • the packet filter may include at least one packet filtering rule, and each packet filtering rule may include the location information, the operation information, and the matching information.
  • the location information may include relative location information, location offset information, and positioning format information.
  • the relative position information is used to indicate the 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 to indicate the location of the data relative to the location of the data packet. Order.
  • the technical solution provided by the application can speed up the determination of the data corresponding to the location information, and further accelerate the data transmission.
  • the QoS rule may further include matching priority information of the packet filter, and is used to indicate that the user equipment or the user plane node matches the data according to the matching priority information of the packet filter.
  • the QoS of the higher priority business data is guaranteed.
  • the user equipment provided in FIG. 7 and the processor 720/820 in the user plane node provided in FIG. 8 may be a central processing unit (CPU), and may be other general-purpose processors, digital signal processors ( DSP), application specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • control plane node provided in FIG. 6 can include a memory 630 for storing QoS rules received by the receiver 610.
  • the user equipment provided in FIG. 7 may include a memory 740 for storing QoS rules sent by the control plane node.
  • the user plane node provided in FIG. 8 may include a memory 840 for storing QoS rules sent by the control plane node.
  • Memory 630/740/840 can include read only memory and random access memory and provides instructions and data to processor 520/620. A portion of the memory may also include a non-volatile random access memory.
  • control plane node may be implemented in other manners.
  • control plane node, user equipment, and user plane node embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division, and the actual implementation may have another division manner, for example, Multiple units or components may be combined or integrated into another system, or some features may be omitted or not implemented.
  • the units described as separate components may or may not be physically separated, and the components displayed as the units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above set unit can be implemented in the form of hardware or in the form of a software functional unit.

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Abstract

La présente invention concerne un procédé de commande de transmission de données et un dispositif de transmission de données. Le procédé consiste à : acquérir un filtre de paquets de données, le filtre de paquets de données comprenant des informations de localisation et une condition de filtre, et la condition de filtre étant utilisée pour spécifier une relation de correspondance entre des données de transmission correspondant aux informations de localisation et un mécanisme de traitement de transmission de QoS ; et envoyer le filtre de paquets de données à un dispositif de transmission de données, le filtre de paquets de données étant utilisé par le dispositif de transmission de données pour distribuer les données de transmission à un mécanisme de traitement de transmission de QoS satisfaisant la relation de correspondance afin de mettre en oeuvre la transmission. Selon le procédé de commande de transmission de données de la présente invention, lors de la transmission de données de transmission, le dispositif de transmission de données n'a pas besoin de déterminer le type de protocole des données de transmission, et peut distribuer les données de transmission par l'intermédiaire d'un filtre de paquets de données à différents mécanismes de traitement de transmission de QoS à des fins de transmission, ce qui assure la QoS de données structurées.
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