CN108667879B - Data service session binding method, routing equipment and system - Google Patents

Data service session binding method, routing equipment and system Download PDF

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Publication number
CN108667879B
CN108667879B CN201710210777.4A CN201710210777A CN108667879B CN 108667879 B CN108667879 B CN 108667879B CN 201710210777 A CN201710210777 A CN 201710210777A CN 108667879 B CN108667879 B CN 108667879B
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session
user equipment
message
data service
pcrf
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CN108667879A (en
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颜石专
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/146—Markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1403—Architecture for metering, charging or billing
    • H04L12/1407—Policy-and-charging control [PCC] architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer

Abstract

The invention discloses a data service session binding method, equipment and a system. In the invention, when receiving a data service request initiated by user equipment, a gateway device firstly judges whether the data service requested by the user equipment is a capability open service, if so, the gateway device sends Gx session information carrying indication information for establishing session binding information for the user equipment to a routing device, so that the routing device establishes the session binding information for the user equipment. Compared with the prior art that the session binding information is created for all the user equipment using the data service, the embodiment of the invention only creates the session binding information when the data service requested by the user equipment is the capability opening service, thereby reducing the storage space of the session binding information on the routing equipment and saving the storage cost of the routing equipment.

Description

Data service session binding method, routing equipment and system
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data service session binding method, a routing device, and a system.
Background
Third generation partnership project (3)rdIn application of Generation Partnership Project, 3GPP), session binding refers to that session binding information is stored on a routing device in Policy and Charging Control (PCC) networking, and messages related to the same session and sent by different communication interfaces or network devices are all forwarded to the same Policy and Charging Rules Function (PCRF) by the routing device according to the session binding information.
In the prior art, after session binding information is stored, both Gx session messages and Rx session messages of a user are routed to the same PCRF. The Gx interface is an interface between the PCRF and a Policy and Charging Enforcement Function (PCEF), the Rx interface is an interface between the PCRF and an Application Function (AF), and the Routing device may specifically be a Diameter Routing Agent (DRA).
In the prior art, when the number of users of an operator is large (e.g., hundreds of millions of users), the session binding information stored on the DRA occupies a large amount of storage space, resulting in high cost of the DRA.
Disclosure of Invention
The embodiment of the invention provides a data service session binding method, routing equipment and a system, which are used for reducing the storage space occupied by session binding information.
In a first aspect, an embodiment of the present invention provides a data service session binding method, applied to a gateway device, including:
when a request of a data service initiated by user equipment is received, judging whether the data service requested by the user equipment is a capability opening service;
when the data service is a capability openness service, sending a Gx session message (which may be referred to as a Gx message for short) to a routing device, where the Gx session message carries indication information for creating Gx session binding information (which may be referred to as session binding information for short) for the user equipment.
In an optional embodiment, the determining whether the data service of the user equipment is a capability openness service includes: and judging whether the data service is a capability opening service or not by judging the destination address or the service type of the request of the data service.
In an alternative embodiment, the destination address of the request for the data service is a uniform resource locator of the data service.
In an optional embodiment, the Gx session message is a credit control request update message.
In an optional embodiment, the indication information is carried by an attribute value pair added in the credit control request update message.
In an optional implementation manner, before the gateway device receives the request of the data service initiated by the user equipment, the method further includes: receiving a data service initialization message initiated by user equipment, and sending a Gx session establishment request message to the routing equipment according to the data service initialization message, wherein the establishment request message carries indication information which does not establish session binding information for the user equipment.
In an optional embodiment, the Gx session establishment request message is a credit control request initialization message.
In a second aspect, an embodiment of the present invention provides a data service session binding method, applied to a routing device, including:
receiving a Gx session message sent by a gateway device, wherein the Gx session message carries indication information for establishing session binding information for user equipment;
and creating Gx session binding information for the user equipment according to the Gx session message.
In an optional embodiment, the method further comprises:
and sending the Gx session message to a Policy Charging Rule Function (PCRF) device.
In an optional embodiment, the creating, by the routing device, Gx session binding information for the user equipment according to the Gx session message includes:
and the Gx session message carries the identification of the PCRF, the identification of the user equipment and the identification of the Gx session, and the corresponding relation among the identification of the PCRF, the identification of the user equipment and the identification of the Gx session is established locally.
In an optional implementation manner, before receiving the Gx session message sent by the gateway device, the routing device further includes:
and receiving a Gx session establishment request message sent by the gateway equipment, sending the Gx session establishment request message to Policy and Charging Rules Function (PCRF) equipment, and not creating Gx session binding information for the user equipment.
In an optional implementation manner, the Gx session establishment request message carries indication information that session binding information is not created for the ue.
In an optional embodiment, the method further comprises:
receiving an Rx session message sent by application function equipment, wherein the Rx session message carries an identifier of user equipment; inquiring the session binding information according to the identifier of the user equipment, and determining the identifier of PCRF equipment to which the Rx session message needs to be routed; and sending the Rx session message to PCRF equipment corresponding to the identification of the PCRF equipment.
In an optional embodiment, the routing device further adds an identity of the PCRF device to the Rx session message.
In a third aspect, an embodiment of the present invention provides a gateway device, which includes:
the system comprises a judging module, a judging module and a judging module, wherein the judging module is used for judging whether a data service requested by user equipment is a capability opening service when receiving a data service request initiated by the user equipment;
and the message sending module is used for sending a Gx session message to the routing equipment when the data service is a capability open service, wherein the Gx session message carries indication information for establishing session binding information for the user equipment.
In an optional implementation manner, the determining, by the determining module, whether the data service of the user equipment is a capability openness service includes:
and judging whether the data service is a capability opening service or not by judging the destination address or the service type of the request of the data service.
In an optional embodiment, the gateway device further comprises:
the message receiving module is used for receiving a data service initialization message initiated by the user equipment before receiving a request of the data service initiated by the user equipment;
the message sending module is further configured to send a Gx session establishment request message to the routing device according to the data service initialization message, where the establishment request message carries indication information that session binding information is not established for the user equipment.
In an optional embodiment, the Gx session message is a credit control request update message.
In a fourth aspect, an embodiment of the present invention provides a routing device, including:
the first receiving module is used for receiving a Gx session message sent by a gateway device, wherein the Gx session message carries indication information for establishing session binding information for user equipment;
and the binding module is used for creating Gx session binding information for the user equipment according to the Gx session message.
In an optional embodiment, the routing device further comprises:
and the first sending module is used for sending the Gx session message to Policy and Charging Rule Function (PCRF) equipment.
In an optional embodiment, the creating, by the binding module, Gx session binding information for the user equipment according to the Gx session message includes:
and the Gx session message carries the identification of the PCRF, the identification of the user equipment and the identification of the Gx session, and the corresponding relation among the identification of the PCRF, the identification of the user equipment and the identification of the Gx session is established locally.
In an optional embodiment, the first receiving module is further configured to receive, before receiving the Gx session message sent by the gateway device, a Gx session establishment request message sent by the gateway device;
the first sending module is further configured to send the Gx session establishment request message to a policy and charging rule function PCRF device, and not create Gx session binding information for the user equipment.
In an optional implementation manner, the first receiving module is further configured to receive an Rx session message sent by the application function device, where the Rx session message carries an identifier of the user equipment;
the routing device further comprises an inquiry module, which is used for inquiring the session binding information according to the identifier of the user device and determining the identifier of the PCRF device to which the Rx session message needs to be routed; the first sending module is further configured to send the Rx session message to a PCRF device corresponding to the identifier of the PCRF device.
In the embodiment of the invention, when receiving a request of a data service initiated by user equipment, gateway equipment firstly judges whether the data service requested by the user equipment is a capability open service, if so, the gateway equipment sends Gx session information carrying indication information for establishing session binding information for the user equipment to routing equipment, and thus the routing equipment establishes the session binding information for the user equipment. Compared with the prior art that the session binding information is created for all the user equipment using the data service, the embodiment of the invention only creates the session binding information when the data service requested by the user equipment is the capability opening service, thereby reducing the storage space of the session binding information on the routing equipment and saving the storage cost of the routing equipment.
In a fifth aspect, an embodiment of the present invention further provides a general-purpose computer device, which may be the gateway device in the third aspect, or may be the routing device in the fourth aspect, where the general-purpose computer device includes: an input-output device, a processor, and a memory; wherein the memory stores executable software code, and the processor implements the method flow of the first or second aspect by executing the executable software code.
In the embodiments provided in all the above aspects, the Identity of the user may be an IP address of a user equipment used by the user or an International Mobile Subscriber Identity (IMSI) of the user, the Gx session message may be a credit control request update message, and the Rx session message may be an authentication authorization request message.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic diagram of a network architecture suitable for a data service session binding method provided in an embodiment of the present invention;
fig. 2 is a flowchart of a data service session binding method according to another embodiment of the present invention;
fig. 3 is a flowchart of a data service session binding method according to another embodiment of the present invention;
fig. 4 is a functional diagram of a gateway device according to an embodiment of the present invention;
fig. 5 is a functional diagram of a routing device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a routing device or a gateway device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a network architecture of a typical application scenario according to an embodiment of the present invention. The method mainly comprises User Equipment (UE), gateway Equipment (gateway for short), AF Equipment (AF for short), an Application Server (AS), routing Equipment and PCRF Equipment (PCRF for short). The gateway includes a Policy and Charging Enforcement Function (PCEF) device, and may specifically be a PGW. The routing device is specifically a DRA device (DRA for short).
When the user equipment is powered on or accesses a data network, the DRA does not create session binding information (which may also be referred to as a session binding relationship) for the user equipment when receiving a Gx session establishment request sent by the gateway. When a capability openness service request of user equipment is received, the gateway triggers the DRA to create the session binding information, and compared with the prior art in which all user equipment creates the session binding information, the embodiment of the invention can obviously reduce the space requirement of the DRA on the stored session binding information and save the cost of the DRA.
Referring to the schematic network architecture diagram shown in fig. 1, a data service session binding method provided in an embodiment of the present invention is shown in fig. 2, and may include the following steps:
step 201, when receiving a data service request initiated by a user equipment, a gateway determines whether the data service requested by the user equipment is a capability opening service.
After accessing the data network, the user equipment may initiate a request for using a data service, for example, start an application program live video on the user equipment. The gateway may determine whether the data service requested by the user equipment is a capability openness service when receiving the request of the data service.
Specifically, the gateway may determine whether the data service is a capability openness service according to a destination address (a server address or a uniform resource locator) of a request of the data service or a service type (a video service, a web access, a download service, or the like). A typical capability openness Service may be a Quality of Service (QoS) capability openness Service, such as a video Service or a video Service provided by a particular vendor (e.g., YouTube video), a download Service, and so on. In addition, the capability openness service can also be a gateway capability openness service.
Step 202, when the data service is a capability openness service, the gateway sends a Gx session message to the DRA, where the Gx session message carries indication information for creating session binding information for the user equipment.
The capability openness service triggers the AF to send an Rx session message to the DRA, and the DRA needs to route the Rx session message according to the session binding information.
In this embodiment, when determining that the data service requested by the user equipment is a capability openness service, the gateway performs step 203, that is, sends a Gx session message to the DRA, where the Gx session message carries indication information for creating session binding information for the user equipment. Specifically, the indication information may be carried by an Attribute Value Pair (AVP) newly added in the Gx session message, or may be carried by using an existing AVP in the Gx session message.
If the gateway determines that the data service requested by the user equipment is not the capability openness service, it may send a Gx session message to the DRA, where the Gx session message does not carry indication information for creating session binding information for the user equipment. The indication information that does not carry the session binding information created for the ue may also be referred to as a general Gx session message. After receiving the ordinary Gx session message, the DRA will not create session binding information for the user equipment, and the DRA will forward the ordinary Gx session message to the PCRF.
Step 203, the DRA receives a Gx session message sent by the gateway, wherein the Gx session message carries indication information for creating session binding information for the user equipment.
The DRA analyzes the received Gx session message, so that the fact that session binding information needs to be created for the user equipment can be known, and step 204 is executed.
And 204, the DRA creates Gx session binding information for the user equipment according to the Gx session message.
Specifically, the Gx Session message received by the DRA carries an identifier of the PCRF, an identifier of the user equipment, and a Session identifier (Session ID) of the Gx Session. The DRA creation session binding information may be a correspondence between locally established identity of the PCRF, identity of the user equipment, and identity of the Gx session. The Gx session message may also carry an access point name of the user equipment or the gateway, and the corresponding session binding information may also include the access point name.
The identifier of the user may be an IP address of the user equipment, an International Mobile Subscriber Identity (IMSI) of the user, a Mobile phone number of the user, or the like. The identity of the PCRF may be a host name, an IP address, and the like of the PCRF.
In this embodiment, the routing device does not create Gx session binding information for all user devices, but creates session binding information only for the user devices that need to route the Rx session message according to the session binding information subsequently, so that the storage space required for storing the session binding information on the DRA can be reduced, and the cost of the DRA is reduced.
Further, the data service session binding method provided by the embodiment of the present invention may further include the following steps:
step 205, the DRA sends the Gx session message to a policy and charging rule function PCRF device.
Because the Gx session message needs to be sent to the PCRF at last, after receiving the Gx session message sent by the gateway, the DRA routes the Gx session message to the PCRF, so that the PCRF device processes the received Gx session message.
The DRA can delete indication information carried in the Gx session message and used for creating session binding information for the user equipment, and then the Gx session message with the indication information deleted is sent to the PCRF.
Referring to fig. 3, fig. 3 is a flowchart of a data service session binding method according to another embodiment of the present invention.
The user equipment accesses to a data network (e.g. 2G network, 3G network, LTE network, 5G network) provided by an operator, and initiates a data service initialization message (which may be referred to as user activation) to request to establish a data connection. The data service session binding method provided by the embodiment of the invention comprises the following steps:
step 301, receiving a data service initialization message initiated by a user equipment by a PCEF, sending a Gx session establishment request message to a DRA, and requesting to establish a Gx session.
In this embodiment, the Gx session establishment Request message is specifically a Credit Control Request initialization (CCR-I) message, where the Gx session establishment Request message sent by the PCEF carries indication information that session binding information is not created for the ue, the indication information may be implemented by an AVP newly added in the Gx session establishment Request message, a name of the newly added AVP may be freely set, and a meaning of the newly added AVP indicates that session binding information is not required to be created for the ue on the DRA.
Step 302, receiving the CCR-I message by the DRA, and forwarding the CCR-I message to the PCRF.
After receiving the CCR-I message, the DRA directly forwards the message to the PCRF without locally establishing session binding information of the user equipment.
Step 303, the DRA receives a Gx session establishment response message returned by the PCRF.
The Gx session establishment response message may specifically be a Credit Control Answer initialization (CCA-I) message.
And step 304, the PCEF receives the CCA-I message forwarded by the DRA, so that the Gx session between the PCEF and the PCRF is successfully established.
After the Gx session is successfully established, the user can use the data service, the user initiates an online video service through the user equipment, and the online video service requires the capability to be opened. For example, when the user uses an online video service, it needs to provide a high bandwidth and a low latency, i.e. to require quality of service guarantee.
Step 305, receiving a data service request sent by a user equipment by a PCEF, and determining whether the data service requested by the user equipment is a capability openness service.
In this embodiment, the PCEF may perform Deep Packet Inspection (Deep Packet Inspection) on a data service request sent by the ue, obtain an access address or a service type of the data service accessed by the ue, and then determine whether the access address or the service type is included in a local capability openness service list, if so, determine that the service accessed by the ue is the capability openness service. Otherwise, the service accessed by the user equipment is judged not to be the capability opening service. The access address of the data service may be an address of a destination server or an access Uniform Resource Locator (URL).
In this embodiment, if the type of the data service accessed by the ue is a video service, the PCEF determines that the service is a capability openness service. In addition, if the data service initiated by the user equipment is a common Web access, the PCEF determines that the service does not belong to a capability openness service, and then performs a common charging and policy control action, for example, sends a Gx session message, which does not carry indication information of session binding information created for the user equipment, to the DRA.
Step 306, the PCEF sends a Gx session message to the DRA, where the Gx session message carries indication information for creating session binding information for the user equipment.
In this embodiment, the Gx session message may specifically be a Credit Control Request Update (CCR-U) message. And the PCEF judges that the service initiated by the user equipment is the service quality capability open service, and then sends a CCR-U message to the DRA, wherein the newly added AVP carries indication information for creating session binding information for the user equipment. The name of the newly added AVP can be freely set, and its meaning indicates that session binding information needs to be created on the DRA for the user equipment. The indication information can also be carried by AVP already existing in CCR-U.
And 307, receiving a CCR-U message sent by the gateway equipment by the DRA, wherein the CCR-U message carries indication information for creating session binding information for the user equipment, and the DRA creates Gx session binding information for the user equipment according to the CCR-U message.
In this embodiment, the CCR-U message received by the DRA carries a host name of the PCRF, an IP address and IMSI of the user equipment, and a session ID of the Gx session. The session binding information created by the DRA comprises the corresponding relation among the host name of the PCRF, the IP address of the user equipment, the IMSI and the session ID of the Gx session.
Step 308, the DRA forwards the CCR-U message to the PCRF.
The DRA can forward the CCR-U message to the PCRF after the session binding information is created, and can also forward the CCR-U message to the PCRF while the session binding information is created.
Step 309, the PCRF returns a CCA-U message to the DRA.
Wherein, the Credit Control response updates (CCA-U) response of CCA-U message, which carries charging and Control policy rules issued by PCRF to PCEF.
And step 310, receiving the CCA-U message sent by the PCRF by the DRA, and forwarding the CCA-U message to the PCEF.
And after receiving the CCA-U message, the PCEF carries out charging and policy control on the user equipment access online video service according to the charging rule and the control policy rule carried in the CCA-U message.
When the user equipment uses the online video service, an application server (e.g., a server of an online video service provider) may send a capability opening request, such as a QoS request (increase or decrease QoS of the user equipment), to the AF.
Step 311, the AF sends an Rx session message (abbreviated as Rx message) to the DRA.
The Rx session message may specifically be an Authentication Authorization Request (AAR) message, which carries an IP address of the user equipment.
Step 312, the DRA queries the session binding information according to the identifier of the user equipment, and determines the identifier of the PCRF to which the AAR message needs to be routed.
The DRA queries binding information (the corresponding relationship) created before according to the identifier of the user equipment in the AAR message, and further obtains an identifier of the PCRF to which the AAR message needs to be routed (the host name of the PCRF).
Step 313, the DRA sends an AAR message to the PCRF.
The DRA sends an AAR message to the PCRF corresponding to the PCRF host name, so that the PCRF can process the AAR message conveniently. Optionally, the DRA further adds the host name of the PCRF to the AAR message, so that other devices in the network can route the AAR message to the PCRF.
In the embodiment of the invention, after receiving an indication message (CCR-U message) which is sent by a PCEF and indicates that the PCEF establishes the session binding relationship, the DRA establishes the session binding information for the user equipment. Compared with the prior art that session binding information is created for all user equipment using data services, the method can reduce the requirement of the session binding information on the storage space of the DRA and reduce the cost of the DRA.
An embodiment of the present invention further provides a gateway device, as shown in fig. 4, including:
a determining module 401, configured to determine, when receiving a request for a data service initiated by a user equipment, whether the data service requested by the user equipment is a capability openness service;
a message sending module 402, configured to send a Gx session message to a routing device when the data service is a capability openness service, where the Gx session message carries indication information for creating session binding information for the user equipment. Wherein, the Gx session message may be a credit control request update message.
The determining module determines whether the data service of the user equipment is a capability openness service with reference to steps 201 and 305 in the embodiment of the method.
In this embodiment of the present invention, the gateway device may further include:
a message receiving module 403, configured to receive a data service initialization message initiated by a user equipment before receiving a request of a data service initiated by the user equipment; the message sending module 402 is further configured to send a Gx session establishment request message to the routing device according to the data service initialization message, where the establishment request message carries indication information that session binding information is not established for the user equipment.
The gateway device provided in the embodiment of the present invention may be used in the method steps executed by the gateway device in the foregoing method embodiment, and refer to the description of the foregoing method embodiment specifically.
An embodiment of the present invention further provides a routing device, as shown in fig. 5, which mainly includes:
a first receiving module 501, configured to receive a Gx session message sent by a gateway device, where the Gx session message carries indication information for creating session binding information for a user equipment. The specific process may refer to step 203 of the method embodiment.
A binding module 502, configured to create Gx session binding information for the user equipment according to the Gx session message. The specific creation process refers to method embodiment step 204.
Further, the routing device may further include:
a first sending module 503, configured to send the Gx session message to a policy and charging rule function PCRF device. The specific sending process may refer to step 205 of the method embodiment.
In this embodiment of the present invention, the creating, by the binding module 502, Gx session binding information for the user equipment according to the Gx session message includes:
and the Gx session message carries the identification of the PCRF, the identification of the user equipment and the identification of the Gx session, and the corresponding relation among the identification of the PCRF, the identification of the user equipment and the identification of the Gx session is established locally.
In this embodiment of the present invention, the first receiving module 501 is further configured to receive, before receiving the Gx session message sent by the gateway device, a Gx session establishment request message sent by the gateway device; the first sending module 503 is further configured to send the Gx session establishment request message to a policy and charging rules function PCRF device, and not create Gx session binding information for the user equipment.
In another embodiment, the first receiving module 501 is further configured to receive an Rx session message sent by an application function device, where the Rx session message carries an identifier of a user equipment; the routing device further includes an inquiry module 504, configured to inquire the session binding information according to the identifier of the user equipment, and determine an identifier of a PCRF device to which the Rx session message needs to be routed; the first sending module 503 is further configured to send the Rx session message to a PCRF device corresponding to the identifier of the PCRF device.
Specifically, the first receiving module 501 and the first sending module 503 may refer to relevant steps executed by the routing device in the method embodiment to execute contents of a received message and a sent message.
An embodiment of the present invention further provides another general computer device (which may be a gateway device or a routing device), as shown in fig. 6, including: input/output device 601, processor 602, memory 603, and power supply.
Wherein the memory 603 may store executable software codes, and the processor 602 implements the method flows of the gateway device and the routing device corresponding to the foregoing embodiments by executing the executable software codes. The specific method execution flow can refer to the aforementioned method embodiment. For example, the routing device executes the executable software codes stored in the memory 603, and the routing device can execute the steps 203 and 205, 302 and 312, etc. in the above embodiments, for details, see the description of the above embodiments. The gateway device executes the executable software code stored in the memory 603, and the gateway device can execute the steps 201, 202, 305, 316, etc. in the above embodiments, for details, see the description of the above embodiments.
The embodiment of the invention also provides a communication system, which comprises the gateway equipment and the routing equipment provided by the embodiment. The specific structures of the gateway device and the routing device are described in the above related embodiments. In addition, the communication system in the embodiment of the present invention may further include a PCRF device and an AF device.
It should be noted that, in the embodiments of the routing device and the gateway device, each included unit is only divided according to functional logic, but is not limited to the above division, as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
In addition, it is understood by those skilled in the art that all or part of the steps in the above method embodiments may be implemented by related hardware, and the corresponding program may be stored in a computer readable storage medium, where the above mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiment of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (21)

1. A data service session binding method is applied to gateway equipment, and is characterized by comprising the following steps:
when a request of a data service initiated by user equipment is received, judging whether the data service requested by the user equipment is a capability opening service;
when the data service is a capability opening service, sending a Gx session message to a routing device, wherein the Gx session message carries indication information for establishing session binding information for the user equipment;
before receiving a request of a data service initiated by user equipment, the method further comprises:
receiving a data service initialization message initiated by user equipment, and sending a Gx session establishment request message to the routing equipment according to the data service initialization message, wherein the establishment request message carries indication information which does not establish session binding information for the user equipment.
2. The method of claim 1, wherein the determining whether the data service of the user equipment is a capability openness service comprises:
and judging whether the data service is a capability opening service or not by judging the destination address or the service type of the request of the data service.
3. The method of claim 2, wherein the destination address of the request for the data service is a uniform resource locator of the data service.
4. The method of claim 1, wherein the Gx session message is a credit control request update message.
5. The method of claim 4, wherein the indication information is carried by an attribute-value pair added in the credit control request update message.
6. The method of claim 1, wherein the Gx session establishment request message is a credit control request initialization message.
7. A data service session binding method is applied to a routing device, and is characterized by comprising the following steps:
receiving a Gx session message sent by a gateway device, wherein the Gx session message carries indication information for establishing session binding information for user equipment;
creating Gx session binding information for the user equipment according to the Gx session message;
before receiving the Gx session message sent by the gateway device, the method further includes: and receiving a Gx session establishment request message sent by the gateway equipment, sending the Gx session establishment request message to Policy and Charging Rules Function (PCRF) equipment, and not creating Gx session binding information for the user equipment.
8. The method of claim 7, further comprising:
and sending the Gx session message to a Policy Charging Rule Function (PCRF) device.
9. The method of claim 7 or 8, wherein the creating Gx session binding information for the user equipment according to the Gx session message comprises:
the Gx session message carries an identification of the PCRF, an identification of the user equipment and an identification of the Gx session, and a corresponding relation among the identification of the PCRF, the identification of the user equipment and the identification of the Gx session is established locally.
10. The method of claim 7 or 8, wherein the Gx session establishment request message carries indication information that no session binding information is created for the user equipment.
11. The method of claim 7 or 8, further comprising:
receiving an Rx session message sent by application function equipment, wherein the Rx session message carries an identifier of user equipment;
inquiring the session binding information according to the identifier of the user equipment, and determining the identifier of PCRF equipment to which the Rx session message needs to be routed;
and sending the Rx session message to PCRF equipment corresponding to the identification of the PCRF equipment.
12. The method of claim 11, wherein the routing device further adds an identification of the PCRF device to the Rx session message.
13. A gateway device, comprising:
the system comprises a judging module, a judging module and a judging module, wherein the judging module is used for judging whether a data service requested by user equipment is a capability opening service when receiving a data service request initiated by the user equipment;
a message sending module, configured to send a Gx session message to a routing device when the data service is a capability openness service, where the Gx session message carries indication information for creating session binding information for the user equipment;
wherein, still include:
the message receiving module is used for receiving a data service initialization message initiated by the user equipment before receiving a request of the data service initiated by the user equipment;
the message sending module is further configured to send a Gx session establishment request message to the routing device according to the data service initialization message, where the establishment request message carries indication information that session binding information is not established for the user equipment.
14. The gateway device of claim 13, wherein the determining module determining whether the data service of the user equipment is a capability openness service comprises:
and judging whether the data service is a capability opening service or not by judging the destination address or the service type of the request of the data service.
15. The gateway device according to claim 13 or 14, wherein the Gx session message is a credit control request update message.
16. A routing device, comprising:
the first receiving module is used for receiving a Gx session message sent by a gateway device, wherein the Gx session message carries indication information for establishing session binding information for user equipment;
a binding module, configured to create Gx session binding information for the user equipment according to the Gx session message;
the first receiving module is further configured to receive, before receiving the Gx session message sent by the gateway device, a Gx session establishment request message sent by the gateway device;
a first sending module, configured to send the Gx session establishment request message to a policy and charging rule function PCRF device, and not create Gx session binding information for the user equipment.
17. The routing device of claim 16, further comprising:
the first sending module is further configured to send the Gx session message to a policy and charging rule function PCRF device.
18. The routing device of claim 16 or 17, wherein the binding module creating Gx session binding information for the user device according to the Gx session message comprises:
the Gx session message carries an identification of the PCRF, an identification of the user equipment and an identification of the Gx session, and a corresponding relation among the identification of the PCRF, the identification of the user equipment and the identification of the Gx session is established locally.
19. The routing device of claim 16 or 17, further comprising:
the first receiving module is further configured to receive an Rx session message sent by the application function device, where the Rx session message carries an identifier of the user equipment;
the query module is used for querying the session binding information according to the identifier of the user equipment and determining the identifier of PCRF equipment to which the Rx session message needs to be routed;
the first sending module is further configured to send the Rx session message to a PCRF device corresponding to the identifier of the PCRF device.
20. A computer-readable storage medium, characterized in that it stores a computer program which, when executed by hardware, is capable of implementing the method of any one of claims 1 to 12.
21. A computer device, comprising: an input-output device, a processor, and a memory;
the memory stores a computer program which, when executed by the processor, is capable of implementing the method of any one of claims 1 to 12.
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