WO2018126488A1

WO2018126488A1 - Data transmission control method and data transmission device

Info

Publication number: WO2018126488A1
Application number: PCT/CN2017/070681
Authority: WO
Inventors: 韦安妮; 熊春山; 吴义壮
Original assignee: 华为技术有限公司
Priority date: 2017-01-09
Filing date: 2017-01-09
Publication date: 2018-07-12
Also published as: WO2018126692A1

Abstract

The present application relates to a data transmission control method and a data transmission device. The method may comprise: acquiring a data packet filter, wherein the data packet filter comprises location information and a filter condition, and the filter condition is used to specify a matching relationship between transmission data corresponding to the location information and a QoS transmission processing mechanism; and sending the data packet filter to a data transmission device, wherein the data packet filter is used by the data transmission device to distribute the transmission data to a QoS transmission processing mechanism satisfying the matching relationship in order to perform transmission. According to the data transmission control method of the present application, upon transmitting transmission data, the data transmission device does not need to ascertain a protocol type of the transmission data, and can distribute the transmission data via a data packet filter to different QoS transmission processing mechanisms for transmission, ensuring the QoS of structured data.

Description

Data transmission control method and data transmission device

Technical field

The present application relates to the field of communications technologies, and in particular, to a data transmission control method and a data transmission device.

Background technique

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. To identify that an SDF corresponds to an EPS bearer, that is, an SDF is transmitted through an EPS bearer to implement QoS guarantee for IP services. The bearer is a logical transmission channel. In this way, 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).

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. 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. Wherein 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.

In the 3GPP wireless network QoS mechanism, only the processing of IP data packets is involved, and no non-IP (non-IP) data packet processing is involved. For the 5G network, it is also necessary to specify how to support the QoS guarantee mechanism of non-IP data packets, 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.

Summary of the invention

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.

In a first aspect, an embodiment of the present application provides a data transmission control method, where the control method includes:

Get the packet filter, 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.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the filtering condition includes operation information and matching information, the matching information includes data to be compared, and 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.

With reference to the first aspect, the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, 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.

In combination with the first aspect, or the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, 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.

In conjunction with the first aspect to any of the possible implementations of the third possible implementation of the first aspect, in a fourth possible implementation manner of the first aspect, 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.

In conjunction with the first aspect, or the manner in which any of the first aspects described above may be implemented, in a fifth possible implementation of the first aspect, the data transmission device may comprise a user equipment or a user plane node.

With the solution provided by the embodiment of the present application, protocol-independent data classification can be implemented, and a highly scalable QoS control is implemented through a unified QoS mechanism.

In a second aspect, 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.

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.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the filtering condition includes operation information and matching information, the matching information includes data to be compared, and 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.

In combination with the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, 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.

In conjunction with the second aspect or the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the method may further include:

Receiving 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;

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.

With reference to the second aspect, or a possible implementation manner of any of the possible implementations of the second aspect, in a fourth possible implementation manner of the second aspect, 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.

In a third aspect, 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.

When the user plane node transmits the data to be transmitted, 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.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the filtering condition includes the operation information and the matching information, the matching information includes the data to be compared, and 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.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, 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.

With reference to the third aspect, or the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, 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.

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.

With reference to the third aspect, or any possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, 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.

In a fourth aspect, 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.

And 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.

In order to filter the transmitted data by the packet filter for the device or the user plane node, the transmission data is offloaded, and the structured data packet for the transmission, such as the QoS guarantee of the IP packet, is supported.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the filtering condition includes operation information and matching information, the matching information includes data to be compared, and 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.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a first possible implementation manner of the fourth aspect, the packet filter includes at least one packet filtering rule, and each packet filter includes Location information, operational information, and matching information.

With reference to the fourth aspect, or any of the possible ways of implementing the first possible implementation of the fourth aspect to the second possible implementation of the fourth aspect, the third possible implementation manner of the fourth aspect in,

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.

In a fourth possible implementation manner of the fourth aspect, in combination with the fourth aspect, the first possible implementation manner of the fourth aspect, or any possible implementation manner of the third possible implementation manner of the fourth aspect, 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.

With the solution provided by the embodiment of the present application, protocol-independent data classification can be implemented quickly, and a highly scalable QoS control is implemented through a unified QoS mechanism.

In conjunction with the fourth aspect, or one of the possible implementations of any one of the possible implementations of the fourth aspect, in a fourth possible implementation of the fourth aspect, the data transmission apparatus comprises a user equipment or a user plane node.

In a fifth aspect, 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.

When the user equipment transmits the data to be transmitted, 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 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.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the filtering condition includes the operation information and the matching information, the matching information includes the data to be compared, and 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.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, 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.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, or the second possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect,

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;

When the user equipment transmits 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.

With reference to the fifth aspect, or a possible implementation manner of any of the possible implementation manners of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, 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.

In a sixth aspect, 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.

When the user plane node transmits the data to be transmitted, 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.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the filtering condition includes the operation information and the matching information, the matching information includes the data to be compared, and 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.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, 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.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, or the second possible implementation manner of the sixth aspect, in a third possible implementation manner of the sixth aspect,

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.

When the user plane node transmits the data to be transmitted, the processing unit matches the downlink data according to the matching priority information of the packet filter.

A fourth possible implementation manner of the sixth aspect, in combination with the sixth aspect, or the first possible implementation manner of the sixth aspect, to any of the possible implementation manners of the third possible implementation manner of the sixth aspect 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 according to the embodiment of the present application, 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.

DRAWINGS

1 is a system frame diagram provided according to an embodiment of the present application;

2 is a flowchart of a method for controlling data transmission according to an embodiment of the present application;

3 is a schematic structural diagram of a device according to an embodiment of the present application;

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.

detailed description

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. By configuring structured packet filters (SPF) to complete the classification and processing of data streams, the 5G network is solved. QoS guarantee for transmitted non-IP packets in communication data transmission. Among them, different packet filters correspond to different QoS rule control of the network.

The classification of data packets transmitted over the network includes structured IP packets and non-IP packets. 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.

It should be noted that 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. For example, the IEEE 802.3 Ethernet frame header format and the indication information of each field are as shown in the packet format 1.

Packet format 1

In the IEEE 802.3 Ethernet frame header format, a preamble (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. Bytes; data and pad (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.

Another example is the 802.1Q packet header format, as shown in Table Packet Format 2.

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.

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 header length occupied by the IP header length is 4 bits, which is used to describe the length of the IP header because there is a variable length optional part in the IP header. This part occupies 4 bits, and the unit is 32 bits (4 bytes), that is, the value of this area = IP header length (in bits) / (8 * 4), therefore, the length of an IP header is the longest. 1111", that is, 15*4=60 bytes. 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.

000 ordinary (Routine);

001 priority (Priority);

010 immediate transmission (Immediate);

011 lightning (Flash);

100 is lightning-fast than Flash (Flash Override);

101CRI/TIC/ECP;

110 Internetwork Control (Internetwork Control);

111 Network Control (Network Control).

It should be noted that "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 (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.

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. Among them, 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. When an IP packet is transmitted, the field is first given a specific value. When an IP packet passes through each router along the way, each router along the way will reduce the TTL value of the IP packet by one. If the TTL is reduced to 0, the IP packet is discarded. This field prevents IP packets from being forwarded throughout the network due to routing loops.

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.

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.

The IP Options is a variable length field.

According to the Ethernet frame header format of the packet format 1, the 802.1Q packet header format of the packet format 2, and the IP packet header format of the packet format 3, 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.

The technical solutions of the present application are described in detail below with reference to the accompanying drawings.

FIG. 1 is a system architecture diagram of an embodiment of the present application. As shown in FIG. 1, 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. First, the policy function device 110 is required to configure QoS rules, and the QoS rules include structured packet filters. For example, 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. The structured packet filter may include at least one structured filter rule (SPT rule) such as SPT = (SPF rule 1 and SPF rule 2) or (SPF rule 3 and SPF rule 4) or SPF rule 5, and the like.

Table 1

Among them, "or", "and", and "xor" in Table 1 are a kind of mathematical operators.

"or" means "or" in a logical operation. Among them, "or" is represented by "|" in the computer. The operation rule is: 0|0=0; 0|1=1; 1|0=1; 1|1=1; that is, as long as one of the two objects participating in the operation is 1, the value is 1.

For example: 3|5, ie 0000 0011|0000 0101=0000 0111 Therefore, the value of 3|5 is 7.

In the embodiment of the present application, for example, if the operation information is an OR operation (0), it indicates that the value of the position in the rule in the rule is ORed with 0, if the result is in the matching information. The values are consistent and the rule is satisfied.

For another example, the operation information is ("AND" operation = 011010), indicating that the value of the position in the rule in the rule and the value in the matching information are ORed with each other, and the result is equal to 101010, that is, the rule is matched. .

"and" means "and" in logical operations. Among them, "and" is also called "and", and the computer is represented by "&". The operation rule is: 00&0=0;0&1=0;1&0=0;1&1=1; that is, when both bits are 1 at the same time, the result is 1, otherwise, it is 0. For example, "3&5, ie 0000 0011 & 0101 = 0000 0001, so 3 & 5 is worth 1.

In the embodiment of the present application, for example, if the operation information is an AND operation (0), it indicates that the value of the position in the rule in the rule is ANDed with 0, if the result is in the matching information. The values are consistent and the rule is satisfied.

For another example, if the operation information is an AND operation = 101010, 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.

In the embodiment of the present application, for example, if the operation information is (exclusive OR (0)), it indicates that the value of the position in the rule in the rule is XORed with 0, if the result and the value in the matching information Consistent, the rule is satisfied.

For another example, if 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.

In addition, "0xff" in Table 1 indicates hexadecimal.

In the embodiment of the present application, 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).

After the QoS rule is configured, the policy function device 110 sends the QoS rule to the CP 120. After receiving the QoS rule, the CP 120 sends the QoS rule to the UE 130 and the UP 140 through the NG1 interface and the NG4 interface. In the embodiment of the present application, 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.

After the UE and the UP receive the data stream, 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.

For example, the UE needs to transmit uplink data, and needs to match the packet filter. For example, the SPF rule of the packet filter is SPF rule 1, and the data of the 0 bit of the uplink data is calculated according to the operation information “=” to obtain a matching value. versus If the matching information 1 is equal in the 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:

S210. Acquire a packet filter.

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.

In an embodiment of the present application, 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 target MAC address information, the source MAC address information, or any of the protocol types; the operation information defines a logical relationship, and the logical comparison relationship is as shown in Tables 1 to 5, and may be greater than, equal to, less than, greater than Or equal to, less than or equal to, and, or hexadecimal conversion, etc.; if the relationship between the data to be transmitted and the data to be compared indicated by the location information conforms to the logical relationship specified in the operation information, the data packet is allocated to Data transmission is performed on the quality of service QoS transmission processing mechanism corresponding to the packet filter. Among them, 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. Optionally, the location information is location information where the source node is located in the IP protocol, and the location information is location information where the UE is the destination address in the IP protocol.

In one embodiment of the invention, the packet filter may include at least one packet filtering rule, each packet filter including location information, operational information, and matching information.

For example, the SPF rule 1 shown in Table 1 instructs the data transmission device to determine the data of the bit 0 bits of the data packet to be transmitted according to the position information bit 0, and if the data on the bit 0 bit is equal to the data in the matching information, the operation is performed. If the rule specified in the message is “=”, the packet is transmitted on the bearer corresponding to SPF rule 1, or called the QoS transmission processing mechanism.

If the data on the bit 0 bit is not equal to the data in the matching information, and the rule specified in the operation information is "=", the packet is matched with other packet filters.

In the embodiment of the present application, 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.

In the implementation of the present application, the control plane node may obtain the QoS rule from the policy function device, which is not limited in this embodiment.

In the embodiment of the present application, the configured packet filter can be set according to requirements.

For example, 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. For example, the configured IEEE 802.3 packet filter is as shown in Table 2.

Table 2

In the embodiment of the present application, the packet filter configured by IEEE802.3 may include multiple SPF rules. For example, packet filter = SPF rule 1 + SPF rule 2; or packet filter = SPF rule 1; or packet filter = SPF rule 2; or packet filter = SPF rule 3; or filter = SPF rule 1 + SPF rule 2+SPF rule 3.

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.

For another example, in an 802.1Q scenario, as shown in packet format 2, the configured packet filters can be as shown in Tables 3 and 4.

table 3

Table 4

For another example, 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.

table 5

Similarly, the packet filter of the TCP packet can also be set to the form of Table 5, which is not described here.

In the packet processing process of the 4G network, the filter matches the data through the quintuple (target address, source address, target port, source port, and protocol type). In the technical solution of the present application, 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. In one embodiment of the present application, the data transmission device can be a user equipment and a user plane node.

S220. Send a packet filter to the user equipment.

S230. Send a packet filter to the 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.

After receiving the QoS rule sent by the CP, the UE and the UP respectively save the received QoS rule. It should be noted that 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.

S240. When the user equipment transmits the data to be transmitted, the user equipment matches the data to be transmitted with the data packet filter.

In the embodiment of the present application, 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. Filter, the packet filter includes an SPF rule2, the location information of the SPF rule2 is "bit6-11"; the operation information is "="; the matching information is "source MAC address", then the UE determines the bit 6- in the uplink data. If the 11-bit data and the source MAC address "data satisfy the relationship of "=", the matching is successful, and S250 is executed.

For another example, the packet filter with priority matching is the packet filter 1 of 802.1Q, the packet filter 1 includes SPF rule1, the location information of SPF rule1 is “bit 12-14”; the operation information is “=”; the matching information is “ VLAN Tag Then, the UE determines that the data of the bit 12-14 bits in the uplink data and the data of the "VLAN Tag Protocol" satisfy the relationship of "=", the matching is successful, and S250 is performed.

For another example, the packet matching filter of the IP packet is preferentially matched, and the packet filter includes an SPF rule1, the location information of the SPF rule1 is “bit 12-15”; the operation information is “=”; the matching information is “source address”. Then, the UE determines that the data of the bit 12-15 bits in the uplink data and the "source address" data satisfy the relationship of "=", and the matching is successful, and S250 is performed.

It should be noted that, in the embodiment of the present application, when the UE matches the uplink data with the packet filter, it is not necessary to determine which protocol packet filter is used, and the above priority matches the packet filter of IEEE802.3. 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.

If the matching is unsuccessful, 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.

If the UE does not match the packet filter after the uplink data is matched with all the packet filters, the UE uses the default bearer to transmit the uplink data.

S250. 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.

S260. 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.

In the embodiment of the present application, 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. For example, the packet matching priority filter includes the SP rule, and the location information of the SPF rule is "bit23-48"; the operation information is "="; the matching information is "hexadecimal 12, hexadecimal 34, hexadecimal 56", then the UE judges the bit 23-48 bits of data in the downlink data. If the data of the matching information satisfies the relationship of "=", the matching is successful, and S270 is executed.

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.

If the matching is unsuccessful, 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.

If the UP matches the downlink data with all the packet filters, and there is still no matching packet filter, the UP uses the default bearer to transmit the downlink data.

S270. 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.

It should be noted that, in various embodiments of the present application, the sizes of 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 provided by the embodiment of the present application is different from the method for processing data transmitted by 4G. In the technical solution of the present application, 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.

Optionally, in the embodiment of the present application, 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.

For example, 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.

When the downlink data is transmitted by the UP, 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.

Optionally, in the embodiment of the present application, 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. For example, 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.

With the technical solution of the embodiment of the present application, 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.

The 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 . As shown in FIG. 3, the control plane node may include an obtaining unit 310 and a transmitting unit 320. among them, In the embodiment of the present application, 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.

In one embodiment of the present application, the data transmission device can be a user equipment and/or a user plane node.

Optionally, in the embodiment of the present application, 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. In the embodiment of the present application, 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. For a detailed description of the data matching by the packet filter, refer to S240 or S260 in Figure 2. For brevity, it will not be described here.

It should be noted that, in the embodiment of the present invention, 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.

Optionally, in the embodiment of the present application, 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.

In the embodiment of the present application, the acquiring unit 310 may receive the QoS rule sent by the policy function device, where the QoS rule includes a packet filter.

It should be noted that, in the embodiment of the present application, the specific form of the packet filter can be referred to Table 1, and several specific examples of Tables 2 to 5.

Optionally, in the embodiment of the present application, 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.

Optionally, in the embodiment of the present application, 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.

In the embodiment of the present application, as shown in FIG. 3, the control plane node may further include a storage unit 330, configured to store the QoS rule acquired by the obtaining unit 310. It should be noted that, in the embodiment of the present application, the storage unit 330 may be a memory.

After the acquiring unit 310 obtains the QoS rule, 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. To achieve the offloading of data streams and to achieve unstructured data packets, such as QoS guarantees for IP packets.

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 that the user equipment and the user plane node respectively transmit according to the packet filter pair. The data stream is filtered, and the data stream is offloaded to different bearers for transmission, which ensures the transmission of structured data packets, such as QoS guarantee for non-IP data 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 . As shown in FIG. 4, the user equipment may include a receiving unit 410 and a processing unit 420. In the embodiment of the present application, the receiving unit 410 may be a receiver, the processing unit may be a processor, and 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.

When the user equipment transmits the uplink data, 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. .

In the embodiment of the present application, 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. In the embodiment of the present application, each packet filter may include at least one packet filtering rule, and each packet filtering rule includes location information, operation information, and matching information.

Optionally, in the embodiment of the present application, 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.

Optionally, in the embodiment of the present application, the user equipment 130 may further include a sending unit 430, configured to send data to be transmitted.

In the embodiment of the present application, as shown in FIG. 4, the user equipment may further include a storage unit 440, configured to store the received QoS rules. It should be noted that the storage unit 440 can be a memory.

When the user equipment needs to transmit the uplink data, the processing unit 420 of the user equipment matches the uplink data to be transmitted with the packet filter. For the specific matching process, please refer to the description of S240 in FIG. 2 for brevity, and details are not described herein again.

When the uplink data is successfully matched with the packet filter, 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.

Optionally, in the embodiment of the present application, 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 . As shown in FIG. 5, the user plane node may include a receiving unit 510 and a processing unit 520. In the embodiment of the present application, the receiving unit 510 may be a receiver, the processing unit 520 may be a processor, and 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.

When the user plane node transmits downlink data, 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.

In the embodiment of the present application, 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.

Optionally, in the embodiment of the present application, the user plane node 140 may further include a sending unit 530, configured to send data to be transmitted.

In the embodiment of the present application, as shown in FIG. 5, the user plane node may further include a storage unit 540 for storing the QoS rule received by the receiving unit 510. In the embodiment of the present application, the storage unit 540 may be a memory.

When the user plane node needs to transmit the downlink data, the processing unit 520 of the user plane node matches the downlink data with the packet filter. For the specific matching process, refer to the detailed description of S260 in FIG. 2, which is not described here for brevity.

When the downlink data is successfully matched with the packet filter, 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.

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 .

In an embodiment of the invention, the data transmission device may comprise a user equipment and/or a user plane node.

In the embodiment of the present application, 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.

In the embodiment of the present application, 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.

It should be noted that the control plane node provided by the embodiment of the present application may complete the method steps of S210, S220, and S230 in FIG. Moreover, the 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.

Optionally, in the embodiment of the present application, the location information may include relative location information and 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.

Optionally, in the embodiment of the present application, 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. As shown in FIG. 7, 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.

When the user equipment transmits the uplink data, 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.

In the embodiment of the present application, 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. For details, refer to the detailed description of S240 in FIG. 2, and details are not described herein again. 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.

It should be noted that 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.

Optionally, in the embodiment of the present application, the filtering condition includes the operation information and the matching information, and the matching information includes the data to be compared, and 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.

Optionally, in the embodiment of the present application, 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.

FIG. 8 is a schematic structural diagram of a user plane node according to an embodiment of the present application. As shown in FIG. 8, 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.

When the user plane node transmits downlink data, 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. .

In the embodiment of the present application, 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.

It should be noted that 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.

Optionally, in the embodiment of the present application, 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.

It should be understood that 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.

Additionally, the 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.

In the embodiment of the present application, it should be understood that the disclosed data transmission method, control plane node, user equipment, and user plane node may be implemented in other manners. For example, the control plane node, user equipment, and user plane node embodiments described above are merely illustrative. For example, 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. In addition, 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. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present application. In addition, 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.

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any equivalent modifications are conceivable within the technical scope of the present disclosure. These changes or substitutions are intended to be included within the scope of the present application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

A method for controlling data transmission, characterized in that the method comprises:

Acquiring a packet filter, where the packet filter includes location information and a filter condition, where the filter condition is used to specify a matching relationship between the data to be transmitted corresponding to the location information and a QoS transmission processing mechanism;

Transmitting the packet filter to a data transmission device, the packet filter being configured to transmit, by the data transmission device, the to-be-transmitted data to a QoS transmission processing mechanism that satisfies the matching relationship.
The method according to claim 1, wherein the filtering condition comprises operation information and matching information, the matching information includes data to be compared, and the matching relationship is satisfied as the data to be transmitted and the to-be-sent The relationship of the comparison data conforms to the logical relationship specified in the operation information.
The method according to claim 1 or 2, wherein the packet filter includes at least one packet filtering rule, each of the packet filters including the location information, the operation information, and the Match information.
The method according to any one of claims 1 to 3, wherein the method further comprises:

Obtaining 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;

Sending 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 to-be-transmitted data according to the matching priority information of the data packet filter.
The method according to any one of claims 1 to 4, wherein the location information comprises at least one of relative location information, location offset information, and positioning sequence format information; And indicating an offset of the location of the data to be transmitted relative to a start position of the data packet header; the relative location information is used to indicate that the to-be-transmitted data is located at a location of the data packet; and 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 data packet.
Method according to any of the claims 1 to 5, characterized in that the data transmission means comprise user equipment or user plane nodes.
A method for controlling data transmission, characterized in that the method comprises:

The user equipment receives 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 corresponding to the location information and a QoS transmission processing mechanism;

When the user equipment transmits data to be transmitted, the user equipment allocates the to-be-transmitted data to a QoS transmission processing mechanism that satisfies the matching relationship according to the location information and the filtering condition.
The method of claim 7 wherein:

The filter condition includes operation information and matching information, the matching information includes data to be compared, and the matching relationship is that the relationship between the data to be transmitted and the data to be compared meets the logic specified in the operation information. relationship.
The method according to claim 7 or 8, wherein said packet filter includes at least one packet filtering rule, each of said packet filtering rules including said location information, said operation information, and said matching information.
The method according to any one of claims 7 to 9, wherein the method further comprises:

Receiving 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;

When the user equipment transmits data to be transmitted, the user equipment matches the data to be transmitted according to the matching priority information of the data packet filter.
The method according to any one of claims 7 to 10, wherein the location information comprises at least one of relative location information, location offset information, and positioning sequence format information; And indicating an offset of the location of the data to be transmitted relative to a start position of the data packet header; the relative location information is used to indicate that the to-be-transmitted data is located at a location of the data packet; and 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 data packet.
A method for controlling data transmission, characterized in that the method comprises:

The user plane node receives 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 corresponding to the location information and a QoS transmission processing mechanism; When the user plane node transmits the data to be transmitted, the user plane node 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 method of claim 12 wherein:

The filter condition includes operation information and matching information, the matching information includes data to be compared, and the matching relationship is that the relationship between the data to be transmitted and the data to be compared meets the logic specified in the operation information. relationship.
The method according to claim 12 or 13, wherein said packet filter includes at least one packet filtering rule, each of said packet filtering rules including said location information, said operation information, and said matching information. The method according to any one of claims 12 to 14, wherein the method further comprises:

Receiving 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;

When the user plane node transmits data to be transmitted, the user plane node matches the to-be-transmitted data according to the matching priority information of the data packet filter.
The method according to any one of claims 12 to 15, wherein the location information comprises at least one of relative location information, location offset information, and positioning sequence format information; And indicating an offset of the location of the data relative to a start position of the packet header; the relative location information is used to indicate that the data is located at a location of the data packet; and the positioning sequence format information is used to indicate that the data is located relative to the data packet The order in which the positions are arranged.
An apparatus, wherein the apparatus is a control plane node, and the control plane node comprises:

An obtaining unit, 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 a QoS transmission processing mechanism;

And a sending unit, configured to send the data packet filter to the data transmission device, where the data packet filter is used by the data transmission device to allocate the to-be-transmitted data to a QoS transmission processing mechanism that satisfies the matching relationship.
The apparatus according to claim 17, wherein the filtering condition comprises operation information and matching information, the matching information includes data to be compared, and the matching relationship is satisfied as the data to be transmitted and the to-be-sent The relationship of the comparison data conforms to the logical relationship specified in the operation information.
The apparatus according to claim 17 or 18, wherein said packet filter includes at least one packet filtering rule, each of said packet filters including said location information, said operation information, and said Match information.
Apparatus according to any one of claims 17 to 18, wherein

The obtaining unit is further configured to acquire 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 sending unit is further configured to send the matching priority information to the data transmission device, where the matching priority information is used to indicate that the data transmission device matches the matching priority information of the data packet filter. The transmission data is referred to for matching.
The apparatus according to any one of claims 17 to 20, wherein the location information comprises at least one of relative location information, location offset information, and positioning order format information; And indicating an offset of the location of the data to be transmitted relative to a start position of the data packet header; the relative location information is used to indicate that the to-be-transmitted data is located at a location of the data packet; and 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 data packet.
Apparatus according to any one of claims 17 to 21, wherein said data transmission means comprises a user equipment or a user plane node.
An apparatus, wherein the apparatus is a user equipment, and the user equipment comprises: 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 data to be transmitted and the QoS transmission processing mechanism corresponding to the location information. ;

When the user equipment transmits data to be transmitted, the processing unit allocates the to-be-transmitted data to a QoS transmission processing mechanism that satisfies the matching relationship according to the location information and the filtering condition.
The apparatus according to claim 24, wherein the filtering condition comprises operation information and matching information, the matching information includes data to be compared, and the matching relationship is satisfied as the data to be transmitted and the to-be-sent The relationship of the comparison data conforms to the logical relationship specified in the operation information.
The apparatus according to claim 23 or 24, wherein said packet filter includes at least one packet filtering rule, each of said packet filtering rules including said location information, said operation information, and said matching information.
Device according to claim 19 or 20, characterized in that

The receiving unit is further configured to receive the 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;

When the user equipment transmits data to be transmitted, the processing unit matches the to-be-transmitted data according to matching priority information of the data packet filter.
The apparatus according to any one of claims 23 to 26, wherein said location information comprises at least one of relative location information, location offset information, and positioning order format information; said location offset information is used for And indicating an offset of the location of the data to be transmitted relative to a start position of the data packet header; the relative location information is used to indicate that the to-be-transmitted data is located at a location of the data packet; and the positioning sequence format information is used to indicate The order in which the transmission data is arranged relative to the location of the data packet is described.
An apparatus, wherein the apparatus is a user plane node, and the user plane node comprises 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 data to be transmitted and the QoS transmission processing mechanism corresponding to the location information. ;

When the user plane node transmits data to be transmitted, the processing unit, the location information and the filtering condition, respectively, that the to-be-transmitted data is allocated to a QoS transmission processing mechanism that satisfies the matching relationship.
The apparatus according to claim 28, wherein the filtering condition comprises operation information and matching information, the matching information includes data to be compared, and the matching relationship is satisfied as the data to be transmitted and the to-be-sent The relationship of the comparison data conforms to the logical relationship specified in the operation information.
The apparatus according to claim 28 or 29, wherein said packet filter includes at least one packet filtering rule, each of said packet filtering rules including said location information, said operation information, and said matching information.
Device according to any one of claims 28 to 30, characterized in that

The receiving unit is further configured to receive the 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;

When the user plane node transmits the data to be transmitted, the processing unit matches the to-be-transmitted data according to the matching priority information of the data packet filter.
The apparatus according to any one of claims 28 to 31, wherein the location information comprises at least one of relative location information, location offset information, and positioning sequence format information; And indicating an offset of the location of the data to be transmitted relative to a start position of the data packet header; the relative location information is used to indicate that the to-be-transmitted data is located at a location of the data packet; and 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 data packet.