WO2013044483A1

WO2013044483A1 - Access processing method, apparatus and system

Info

Publication number: WO2013044483A1
Application number: PCT/CN2011/080375
Authority: WO
Inventors: 周伟
Original assignee: 华为技术有限公司
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2013-04-04
Also published as: CN103348740A; CN103348740B

Abstract

The present invention relates to an access processing method, apparatus and system. The method comprises: obtaining sextuple information of a downlink data message, the sextuple information comprising quintuple information and stream label information, where the data messages of different service streams from one same packet data network have different stream label information; and according to the mapping between sextuple information and an access network, obtaining access network information corresponding to the sextuple information. The embodiments of the present invention are capable of selecting access networks for different service streams having the same quintuple information.

Description

Access processing method, device and system

The present invention relates to the field of communications technologies, and in particular, to an access processing method, device, and system. Background technique

With the increasing popularity of terminals supporting multiple wireless interfaces, their applications are continually enriched and their service characteristics are different. In the field of mobile communications, Packet Switched (PS) networks are required to make reasonable use of individual connections based on user attributes and network characteristics. Into the network, data is offloaded, user experience is guaranteed, operators are unified and refined, and resource utilization of the entire network is improved.

The 3rd Generation Partnership Project (3GPP) network is mainly used by the data gateway to select a corresponding access network for downlink data packets according to the quintuple information of the Traffic Flow Template (TFT), and perform data offloading. The quintuple information includes a source IP address, a destination IP address, a source port number, a destination port number, and a transport layer protocol number.

When a user equipment accesses the same application server for service, there may be cases where data packets of different service flows have the same quintuple information.

The prior art cannot select an access network for different traffic flows with the same quintuple information. Summary of the invention

The embodiments of the present invention provide an access processing method, device, and system, which are capable of selecting an access network for different service flows having the same quintuple information.

In an aspect, an embodiment of the present invention provides an access processing method, including:

Acquiring the hexadecimal information of the downlink data, the hexadecimal information includes the quintuple information and the flow label information, where the flow label information of the data packets of different service flows of the same packet data network is different; according to the hexad Corresponding relationship between the information and the access network, and obtaining access network information corresponding to the six-tuple information. On the other hand, an embodiment of the present invention further provides a packet data network gateway, including:

a six-tuple information obtaining unit, configured to acquire six-tuple information of a downlink data packet, where the six-tuple information includes quintuple information and flow label information, where data packets of different service flows of the same packet data network The flow label information is different;

The access network information acquiring unit is configured to obtain access network information corresponding to the six-tuple information according to the correspondence between the six-tuple information and the access network.

The embodiment of the invention further provides a policy charging rule function entity, including:

a first acquiring unit, configured to acquire a correspondence between the hexadecimal information of the downlink data packet and the application information, where the hexagram information includes quintuple information and flow label information, where different service flows of the same packet data network The flow label information of the data packet is different.

a second acquiring unit, configured to acquire a correspondence between the application information and the access network;

a generating unit, configured to obtain the hexad information and the access network according to the correspondence between the hexagram information of the obtained downlink data packet and the application information, and the corresponding relationship between the acquired application information and the access network Correspondence relationship.

The embodiment of the present invention further provides an access processing system, including a policy charging rule function entity and a packet data network gateway. The policy charging rule function entity is configured to obtain a correspondence between the hexadecimal information of the downlink data packet and the application information. Relationship, the hexadecimal information includes quintuple information and flow label information, where flow label information of different data flows of different service flows of the same packet data network is different; and correspondence between application information and the access network is obtained; Corresponding relationship between the obtained hexadecimal information of the downlink data packet and the application information, and the corresponding relationship between the acquired application information and the access network, and obtaining the correspondence between the hexadecimal information and the access network; sending the six-element Corresponding relationship between the group information and the access network to the packet data network gateway; the packet data network gateway is configured to obtain the hexadecimal information of the downlink data packet; and obtaining, according to the correspondence between the hexagram information and the access network, The access information corresponding to the six-tuple information.

In the embodiment of the present invention, the hexadecimal information is formed by adding the flow label information to the quintuple information of the data packet, because the flow label information of the data packet of different service flows is different, The six-tuple information can distinguish different service flows with the same five-tuple information, and then obtain the access network information according to the correspondence between the six-tuple information and the access network, and can have the same five-tuple information. The data packets of different service flows are selected to access the network, and can be further used for more refined data offloading. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description For some embodiments of the present invention, other drawings may be obtained from those skilled in the art without departing from the drawings.

1 is a schematic flowchart of an access processing method according to Embodiment 1 of the present invention;

2 is a signaling interaction diagram of an access processing method according to Embodiment 2 of the present invention;

3 is a signaling interaction diagram of an access processing method according to Embodiment 3 of the present invention;

4a is a schematic structural diagram of a packet data network gateway according to Embodiment 4 of the present invention; FIG. 4b is a schematic structural diagram of another packet data network gateway according to Embodiment 4 of the present invention; FIG. 5 is a schematic structural diagram of a functional function of a policy charging rule according to Embodiment 5 of the present invention; FIG. 5b is a schematic structural diagram of another functional entity of a policy charging rule according to Embodiment 5 of the present invention; FIG. 6 is a schematic structural diagram of an access processing system according to Embodiment 6 of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without the creative work are all within the scope of the present invention.

The serial numbers of the following embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments. The network element involved in the embodiment of the present invention includes:

a Packet Data Network Gateway (PDN-GW), which can be used to select different access networks for downlink data packets;

The application server provides a service for the user equipment, and is configured to send the downlink data packet to the user equipment.

A traffic detection function (TDF) can be used to parse downlink data packets to obtain application information of downlink data packets.

An Access Network Discrovery and Selection Function (ANDSF), configured to provide a correspondence between application information and an access network;

The Policy and Charging Rules Function (PCRF) is used to generate policy and charging control rules. Embodiment 1

FIG. 1 is a schematic flowchart diagram of an access processing method according to Embodiment 1 of the present invention. As shown in Figure 1, the method includes:

And obtaining the quintuple information of the downlink data, where the hexadecimal information includes the quintuple information and the flow label information, where the flow label information of the data packets of different service flows of the same packet data network is different;

Here, the quintuple information refers to the source IP address, the destination IP address, the source port number, the destination port number, and the transport layer protocol number, and is displayed in the IP header field and the transport layer header field in the data packet; The flow label is a standard attribute in the message filter and is located in the network layer header field. The hexadecimal information of the downlink data packet does not need to be parsed. The IP header field, the transport layer header field, and the network layer header field can be obtained.

Since the flow label information meets different flow label information of data packets of different service flows of the same packet data network, the six-tuple information can be distinguished by adding flow label information based on the quintuple information of the data packet. Different business flows of the same quintuple information. Step 102: Obtain access network information corresponding to the six-tuple information according to the correspondence between the six-tuple information and the access network.

If the correspondence between the hexadecimal information and the access network does not exist, the correspondence between the hexadecimal information and the access network may be dynamically obtained before the eNB, and the hexagram information and the application information of the downlink data packet are obtained. The correspondence between the application information and the access network is obtained; the correspondence between the obtained hexagram information and the application information, and the correspondence between the application information and the access network are obtained, and the hexad and the access network are obtained. Correspondence relationship.

In this embodiment, the flow label information can identify data packets of different service flows having the same quintuple information, and further can be different service flows having the same quintuple information according to the correspondence between the hexadecimal information and the access network. The data packet acquires the corresponding access network information. Embodiment 2

In this embodiment, the correspondence between the application information and the access network is configured on the ANDSF; after the PDN-GW obtains the correspondence between the hexadecimal information and the access network, the hexagram information of the downlink data packet is obtained, and is obtained according to the The correspondence between the hexagram information and the access network obtains the access network information of the downlink data packet. 2 is a signaling interaction diagram of an access processing method provided in Embodiment 2. The specific process is shown in Figure 2:

201: The UE interacts with the server to perform a service request.

After the UE attaches to the access network, it interacts with the server to perform a service request. For example, the UE sends a video request service requesting a video service.

202: Serveri sets the flow label information of the downlink data packet;

After receiving the service request sent by the UE, the server sets the flow label information of the service instance in the flow label field in the IP header field of the downlink data packet. The flow label information of the data packet that meets the different service flows of the same packet data network is different. Through the flow label information, the PDN-GW can identify data packets of different service flows having the same quintuple information.

The flow label information may be generated by the application server and set in the downlink data packet, or may be The user equipment is generated and included in the uplink data packet, and then the application server generates the flow label generated by the user equipment in the downlink data packet. The method for generating the flow label information includes: 1) randomly generating the flow label information, and if the generated flow label information is the same as the flow label information in the data packet of the different service flow of the same packet data network, regenerating the new flow randomly. Label Information. The generated flow label information needs to be different from the flow label information in the data packets of different service flows of the same packet data network, that is, the flow label information of the same service flow indicating the same packet data network is the same, different The flow label information of the data packets of the service flow is different, and is used to distinguish different service flows. A variety of random algorithms may be used to generate the flow label information, which is not specifically limited in the embodiment of the present invention. 2) The flow tag information is generated in sequence, so that the generated stream tag information satisfies a certain sequence of sequences without generating duplicate stream tag information.

Because the application server can sense the service flow to which the downlink data packet belongs, the application server can more accurately set different flow label information for data packets of different service flows.

203: The server sends a downlink data packet to the PDN-GW.

The server sends the downlink data packet with the flow label set to the PDN-GW. For example, the flow label "video" is set in the data packet of the server video service flow, and the downlink data packet of the video service is sent to the PDN-GW. After receiving the downlink data packet sent by the server, the PDN-GW can obtain the hexadecimal data of the downlink data by viewing the IP header field, the transport layer header field, and the network layer header field of the downlink data packet. information. The hexadecimal information includes the quintuple information and the flow label information; the quintuple information refers to the source IP address, the destination IP address, the source port number, the destination port number, and the transport layer protocol number, and is displayed in the data packet. In the IP header field and the transport layer header field; the flow label information is a standard attribute in the message filter and is located in the network layer header field.

When the corresponding relationship between the hexadecimal information corresponding to the hexadecimal information of the downlink data packet and the access network does not exist on the PDN-GW, the correspondence between the hexadecimal information and the access network may be dynamically obtained, if the PDN is When there is a correspondence between the hexadecimal information corresponding to the hexadecimal information of the downlink data packet and the access network, the GW may directly perform 208. The correspondence between the dynamic six-tuple information and the access network is as shown in 204~207. 204: The TDF acquires a correspondence between the hexadecimal information of the downlink data packet and the application information.

The TDF parses the downlink data packet sent by the server, obtains the application information of the downlink data packet, and obtains the downlink data by viewing the IP header field, the transport layer header field, and the network layer header field of the downlink data packet. The hexadecimal information of the packet, that is, the correspondence between the hexadecimal information of the data packet and the application information is obtained.

205: The TDF sends a correspondence between the six-tuple information and the application information to the PDN-GW;

The TDF sends the correspondence between the six-tuple information acquired at 204 and the access network to the PDN-GW.

206: The ANDSF sends the correspondence between the application information and the access network to the PDN-GW;

The corresponding relationship between the application information and the access network is configured on the ANDSF. The ADNSF can send the corresponding relationship between all the configured application information and the access network to the PDN-GW, or obtain the PDN-GW according to the request of the PDN-GW. The correspondence between the application information corresponding to the application information obtained in the 205 and the access network may further obtain the correspondence between the application information corresponding to the application information obtained by the TDF 204 and the access network according to the request of the TDF.

Here, the application information is an attribute of a data packet related to a service characteristic, and may be a content size, an application identifier, a content type, or a full name domain name, and is displayed or implicitly included in the data packet, and the data may be performed by TDF. The message is parsed in depth to get it. The content size refers to the size of the content of the data message. The application identifier is a flag for identifying and distinguishing data packets of different applications. The content type is the type of content carried in the data message, including text, video, image, and so on. The fully qualified domain name is a complete representation of the host name of the application server carried in the data packet. Those skilled in the art will appreciate that with the development of network technology, the types of application information will also increase.

207: The PDN-GW obtains a correspondence between the hexadecimal information and the access network.

The PDN-GW obtains the correspondence between the six-tuple and the access network according to the correspondence between the obtained six-tuple information and the application information, and the correspondence between the application information and the access network.

The corresponding relationship between the application information and the access network is configured in advance by the ANDSF. The PDN-GW dynamically obtains the correspondence between the hexadecimal information and the access network during the transmission of the downlink data packet, without pre-configuring the hexadecimal information and access. Correspondence between networks, flexible and centralized configuration of access policies. 208: The PDN-GW obtains access network information of the downlink data packet according to the correspondence between the hexadecimal information and the access network.

The PDN-GW obtains the access network corresponding to the hexadecimal information of the downlink data packet according to the hexadecimal information of the downlink data packet obtained in 203 and the correspondence between the hexadecimal information and the access network. Information, that is, access network information of the downlink data packet is obtained.

Here, the steps 203 to 208 are to first obtain the correspondence between the hexadecimal information and the access network, and then obtain the access network information according to the hexadecimal information and the correspondence between the obtained hexagram information and the access network. Optionally, the application information may be obtained according to the correspondence between the hexadecimal information and the application information, and the hexagram information obtained by the PDN-GW; and then according to the correspondence between the application information and the access network, Get access network information.

In this embodiment, the flow label information can identify data packets of different service flows having the same quintuple information, and further can be different service flows having the same quintuple information according to the correspondence between the hexadecimal information and the access network. The data packet obtains the corresponding access network information. The dynamic access to the correspondence between the hexadecimal information and the access network enables flexible and centralized configuration of the access policy. The application server can be used to set the flow label information. The implementation sets different flow label information for data packets of different service flows. Embodiment 3

In this embodiment, the corresponding relationship between the application information and the access network is configured on the ANDSF; the correspondence between the hexadecimal information and the access network is obtained by the PCRF, and sent to the PDN-GW; and the PDN-GW obtains the downlink data packet. The hexagram information is obtained, and the access network information of the downlink data packet is obtained according to the correspondence between the obtained hexagram information and the access network. FIG. 3 is a signaling interaction diagram of an access processing method provided in Embodiment 3. The specific process is shown in Figure 3:

301: The UE interacts with the server to perform a service request.

After the UE attaches to the access network, it interacts with the server to perform a service request. For example, the UE sends a video request service and requests to perform a video service. 302: Serveri sets the flow label information of the downlink data packet.

The flow label information may be generated by the application server and set in the downlink data packet, or may be generated by the user equipment and included in the uplink data packet, and then the application server sets the flow label generated by the user equipment in the downlink data packet. . The method for generating the flow label information is the same as the second embodiment, and details are not described herein.

303: The server sends a downlink data packet to the PDN-GW.

The server sends the downlink data packet with the flow label set to the PDN-GW. For example, the flow label "video" is set in the data packet of the server video service flow, and the downlink data packet of the video service is sent to the PDN-GW. After receiving the downlink data packet sent by the server, the PDN-GW can obtain the hexadecimal information of the downlink data packet by checking the IP header field, the transport layer header field, and the network layer header field of the downlink data packet. . The six-tuple information is the same as that in the second embodiment, and is not described here.

When the corresponding relationship between the hexadecimal information corresponding to the hexadecimal information of the downlink data packet and the access network does not exist on the PDN-GW, the correspondence between the hexadecimal information and the access network may be dynamically obtained, if the PDN is When there is a correspondence between the hexadecimal information corresponding to the hexadecimal information of the downlink data packet and the access network, the GW may directly perform 309. The corresponding relationship between the dynamic six-tuple information and the access network is shown in 304~308.

304: The TDF obtains a correspondence between the hexadecimal information of the downlink data packet and the application information.

305: The TDF sends a correspondence between the hexadecimal information and the application information to the PCRF. The TDF sends the correspondence between the six-tuple information acquired at 304 and the access network to the PCRF. 306: The ANDSF sends the correspondence between the application information and the access network to the PCRF.

The corresponding relationship between the application information and the access network is configured on the ANDSF, and the ADNSF can send the corresponding relationship between all the configured application information and the access network to the PCRF.

The application information is the same as that in the second embodiment, and details are not described herein.

307: The PCRF obtains the correspondence between the hexadecimal information and the access network.

The PCRF obtains the correspondence between the six-tuple and the access network according to the correspondence between the obtained six-tuple information and the application information, and the correspondence between the application information and the access network.

The corresponding relationship between the application information and the access network is configured in advance by the ANDSF. The PCRF dynamically obtains the correspondence between the hexadecimal information and the access network during the transmission of the downlink data packet, without pre-configuring the hexagram information and the access network. Corresponding relationship, flexible and centralized configuration of access policies.

308: The hexadecimal information obtained by the PCRF is sent to the PDN-GW corresponding to the access network.

The PCRF will associate the six-tuple information obtained in 307 with the access network PDN-GW. For example, the PCRF sends a Policy and Charging Control (PCC) rule to the PDN-GW, and the PCC rule carries the correspondence between the hexagram information obtained in 307 and the access network.

309: The PDN-GW obtains the access network information of the downlink data packet according to the correspondence between the hexadecimal information and the access network.

The PDN-GW obtains the access network corresponding to the hexadecimal information of the downlink data packet according to the hexadecimal information of the downlink data packet obtained in 303 and the correspondence between the hexadecimal information and the access network. Information, that is, access network information of the downlink data packet is obtained. In this embodiment, the flow label information can identify data packets of different service flows having the same quintuple information, and further can be different service flows having the same quintuple information according to the correspondence between the hexadecimal information and the access network. The data packet obtains the corresponding access network information. The dynamic access to the correspondence between the hexadecimal information and the access network enables flexible and centralized configuration of the access policy. The application server can be used to set the flow label information. Datagrams for different business flows Set different stream tag information. Embodiment 4

Embodiment 4 of the present invention provides a packet data network gateway. 4a is a schematic structural diagram of a packet data network gateway according to Embodiment 4 of the present invention. As shown in Figure 4a,

A packet data network gateway 400, comprising:

The hexadecimal information obtaining unit 401 is configured to obtain hexagram information of the downlink data packet, where the hexagram information includes quintuple information and flow label information, where data packets of different service flows of the same packet data network The flow label information is different;

The access network information obtaining unit 402 is configured to obtain access network information corresponding to the six-tuple information according to the correspondence between the six-tuple information and the access network.

Optionally, as shown in FIG. 4b, the packet data network gateway 400 may further include a receiving unit 403, where the receiving unit 403 is configured to receive a correspondence between the six-tuple information sent by the policy charging rule function entity and the access network.

The PDN-GW in Embodiment 3 can be implemented by the packet data network gateway shown in Figure 4b. Optionally, as shown in FIG. 4c, the packet data network gateway 400 may further include a first obtaining unit 404, a second obtaining unit 405, and a generating unit 406;

The first obtaining unit 404 is configured to obtain a correspondence between the hexadecimal information of the downlink data packet and the application information.

The second obtaining unit 405 is configured to acquire a correspondence between the application information and the access network.

The generating unit 406 is configured to obtain the hexad information and the access network according to the correspondence between the hexagram information of the obtained downlink data packet and the application information, and the corresponding relationship between the acquired application information and the access network. Correspondence.

The PDN-GW in Embodiment 2 can be implemented by the packet data network gateway shown in Figure 4c.

The packet data network gateway 400 provided in this embodiment can identify data packets of different service flows having the same quintuple information by using flow label information, and further, according to the pair of hexagram information and the access network. It should be related to that the corresponding access network information can be obtained for data packets of different service flows having the same five-tuple information. Embodiment 5

Embodiment 5 of the present invention provides a policy charging rule function entity. FIG. 5 is a schematic structural diagram of a policy charging rule function entity according to Embodiment 5 of the present invention.

As shown in FIG. 5a, the policy charging function entity 500 provided in Embodiment 5 includes:

The first obtaining unit 501 is configured to obtain a correspondence between the hexadecimal information of the downlink data packet and the application information, where the hexagram information includes quintuple information and flow label information, where different service flows of the same packet data network The flow label information of the data packet is different;

The second obtaining unit 502 is configured to obtain a correspondence between the application information and the access network, and the generating unit 503 is configured to: according to the correspondence between the hexagram information of the obtained downlink data packet and the application information, and the acquired application The correspondence between the information and the access network obtains the correspondence between the hexadecimal information and the access network.

Optionally, as shown in FIG. 5b, the policy charging function entity 500 may further include a sending unit 504, where the sending unit 504 is configured to send a correspondence between the six-tuple information and the access network to the packet data network gateway. The PCRF in the third embodiment can be implemented by the policy charging function entity shown in Fig. 5b.

The policy charging function entity 500 provided in this embodiment obtains the six-member group dynamically by acquiring the correspondence between the hexadecimal group information and the application information and the correspondence between the application information and the access network during the transmission of the downlink data packet. The correspondence between the information and the access network does not require the pre-configuration of the correspondence between the hexadecimal information and the access network, and the access policy can be configured flexibly and in a centralized manner. Embodiment 6

Embodiment 6 of the present invention provides an access processing system, as shown in FIG. 6, including a policy charging rule function entity 601 and a packet data network gateway 602;

The policy charging rule function entity 601 is configured to obtain the hexadecimal information and access of the downlink data packet. Corresponding relationship of the network, the hexagram information includes quintuple information and flow label information, where flow label information of different data flows of different service flows of the same packet data network is different; sending the hexad information and the access network Corresponding to the packet data network gateway 602;

The packet data network gateway 602 is configured to obtain the hexadecimal information of the downlink data packet, and obtain the access network information corresponding to the hexadecimal information according to the correspondence between the hexagram information and the access network.

The policy charging rule function entity 601 obtains the correspondence between the hexadecimal information of the downlink data packet and the access network, and may specifically: obtain the correspondence between the hexadecimal information of the downlink data and the application information; Corresponding relationship with the access network; obtaining the six-tuple information and the access network according to the correspondence between the acquired hexagram information of the downlink data packet and the application information, and the correspondence between the acquired application information and the access network Correspondence relationship.

The system composed of PCRF and PDN-GW shown in Fig. 3 can be realized by the system of the present embodiment. The system provided in this embodiment dynamically acquires the correspondence between the hexadecimal information and the access network through the policy charging rule function entity 601, and sends the corresponding relationship between the hexadecimal information and the access network to the packet data network gateway 602, so as to implement a flexible and centralized configuration access policy. The packet data network gateway 602 can identify data packets of different service flows having the same quintuple information through the flow label information, and can further have the same quintuple information according to the correspondence between the hexadecimal information and the access network. The data packet of the service flow acquires the corresponding access network information.

A person skilled in the art can clearly understand that, for the convenience and the cleaning of the description, the specific working processes of the system, the device and the unit described above can be referred to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

It will be understood by those of ordinary skill in the art that the drawings are only a schematic representation of one embodiment, and the elements or processes in the drawings are not necessarily required to practice the invention.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another The system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise. The components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention 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 integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional units are stored in a storage medium and include a number of instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform some of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (Read-Only Memory), a random access memory (RAM), a disk or an optical disk, and the like. The medium of the program code.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Claim

An access processing method, comprising:

Obtaining the hexadecimal information of the downlink data packet, where the hexagram information includes the quintuple information and the flow label information, where the flow label information of the data packets of different service flows of the same packet data network is different;

The access network information corresponding to the hexadecimal information is obtained according to the correspondence between the hexadecimal information and the access network.

The method according to claim 1, wherein the obtaining, according to the correspondence between the hexadecimal information and the access network, the access network information corresponding to the hexadecimal information, further includes:

Obtaining a correspondence between the hexadecimal information of the downlink data packet and the application information;

Obtain a correspondence between application information and an access network;

Obtaining a correspondence between the hexadecimal information and the access network according to the correspondence between the hexagram information of the obtained downlink data packet and the application information, and the corresponding relationship between the acquired application information and the access network .

The method of claim 2, after the obtaining the correspondence between the hexadecimal information and the access network, the method further includes:

The packet data network gateway receives the correspondence between the six-tuple information sent by the policy charging rule function entity and the access network.

4. The method according to any one of claims 1 to 3, characterized in that

The flow label information is randomly generated or sequentially generated on the application server; or the flow label information is generated on the application server according to the flow label information of the uplink data packet, where the flow label of the uplink data packet Information is generated by the user device.

5. A packet data network gateway, comprising:

a six-tuple information obtaining unit, configured to acquire six-tuple information of the downlink data packet, where the six-tuple information includes five-tuple information and flow label information, where different service flows of the same packet data network The flow label information of the data packet is different;

The packet data network gateway according to claim 5, further comprising: a first acquiring unit, configured to acquire a correspondence between the hexadecimal information of the downlink data packet and the application information;

a generating unit, configured to obtain, according to the correspondence between the hexagram information of the obtained downlink data packet and the application information, and the corresponding relationship between the acquired application information and the access network, obtain the hexadecimal information and the connection Correspondence into the network.

The packet data network gateway according to claim 5, further comprising: a receiving unit, configured to receive a correspondence between the six-tuple information sent by the policy charging rule function entity and the access network.

8. A policy charging rule function entity, comprising:

a first acquiring unit, configured to acquire a correspondence between the hexadecimal information of the downlink data packet and the application information, where the hexagram information includes quintuple information and flow label information, where different service flows of the same packet data network The flow label information of the data packet is different;

The policy charging rule function entity according to claim 8, further comprising: a sending unit, configured to send a correspondence between the six-tuple information and the access network to the packet data network gateway.

10. An access processing system, comprising a policy charging rule function entity and a packet data network gateway, wherein: The policy charging rule function entity is configured to obtain a correspondence between the hexadecimal information of the downlink data packet and the access network, where the hexagram information includes quintuple information and flow label information, where the same packet data network The flow label information of the data packets of different service flows is different; the corresponding relationship between the six-tuple information and the access network is sent to the packet data network gateway; the correspondence between the six-tuple information and the access network is obtained. The access network information corresponding to the six-tuple information.

The system according to claim 10, wherein the policy charging rule function entity obtains the correspondence between the hexadecimal information of the downlink data packet and the access network, and includes:

Obtaining a correspondence between the hexadecimal information of the downlink data packet and the application information; obtaining a correspondence between the application information and the access network; and correspondingly, the correspondence between the hexagram information and the application information of the obtained downlink data packet, and Corresponding relationship between the acquired application information and the access network, and obtaining a correspondence between the six-tuple information and the access network.