CN101459906B - A method and device for updating PCC rules - Google Patents

Abstract

The embodiment of the invention discloses a PCC rule updating method, which is applied in a network using a saving signaling mechanism, and comprises receiving messages related to a user terminal when the state of the user terminal is changed into an active state, obtaining the current access type of the user terminal, sending a notice message carrying the current access type of the user terminalto a gateway device P-GW, and informing the P-GW to conduct the PCC updating. The embodiment of the invention further discloses a PCC rule updating device. Through the embodiment of the invention, anS-GW informs the P-GW the current access type of the user terminal, the P-GW configures the appropriate PCC rules for a user according to the current access type of the user terminal., thereby avoiding the unmatched problem of PCC rules and the current access type in the technical weaknesses, and making the services carry out smoothly.

Description

A method and device for updating PCC rules

technical field

The present invention relates to the technical field of communication, in particular to a PCC rule updating method and equipment under saving signaling.

Background technique

The core network of the wireless evolved network mainly includes three logical functional bodies: MME (Mobility Management Entity, Mobility Management Network Element), Serving Gateway (Serving Gateway), and PDN Gateway (Public DataNetwork Gateway, public data network gateway). Among them, MME is responsible for NAS (NonAccess Stratum, Non-Access Stratum) signaling and NAS signaling encryption, roaming, tracking and other functions, assigning temporary user IDs, security functions, etc., which correspond to the current UMTS (Universal Mobile Telecommunications System, Universal Mobile Communications System) system The control plane part of the internal SGSN (Serving GPRS Support Node, serving GPRS support node). The ServingGateway (hereinafter referred to as S-SW) is responsible for the local mobility anchor point and the internal mobility anchor point of the 3GPP (3rd Generation Partnership Project, Third Generation Partnership Project) system and lawful interception related information.

PDN Gateway (hereinafter referred to as P-GW) is responsible for policy execution, billing, and legal interception related functions. The policy execution and billing are based on PCC (Policy and Charging Control, Policy and Charging Control) rules, and PCC rules are determined by The PCRF (Policy and Charging Rule Function, policy and charging decision function) functional entity is issued to the P-GW. When the PCRF entity issues PCC rules, the PCC rules need to be determined according to the user's current RAT (Radio Access Type, wireless access type), and different RATs may issue different PCC rules.

Signaling reduction is also called signaling reduction in idle state (ISR, Idle-mode Signaling Reduction). When different access types, such as 2G/3G and LTE (Long Term Evolution, long-term evolution)/SAE (System Architecture Evolution, system architecture evolution) are deployed at the same time, users will frequently perform Handover, such as a user switching from 3G to LTE, will waste a lot of air interface resources. However, most of the users are in the idle state. In order to reduce the occurrence of the switching process for the idle state of the users, the concept of ISR is proposed. The ISR can save air interface signaling only for the user equipment in the idle state. Some principles that ISR should follow are as follows: UE registers with MME and SGSN respectively; MME and SGSN register with HSS, and HSS maintains dual PS registration; SGSN and MME need to notify UE whether to use ISR function; ISR mechanism is not used in URA-PCH state; If 3G adopts the ISR mechanism, the user plane in idle mode is terminated at the S-GW; whether the UE is used the ISR function needs to be notified to the S-GW; two periodic update timers are run on the UE to periodically update the SGSN and MME respectively. When the SGSN and the MME implicitly separate the user because they have not received the periodic update, the PDP context or the bearer context on the Serving GW shall be prevented from being deleted.

When the signaling saving mechanism is adopted, after the user switches from 3G to the LTE network, the user initiates a Service Request (service request) process as shown in Figure 2, including the following steps:

In step s201, the UE sends a NAS signaling Service Request to the MME, requesting to restore the bearer on the air interface side.

In step s202, the eNodeB forwards the NAS signaling sent by the UE to the MME, and the NAS signaling authentication process may be executed.

In step s203, the MME sends a context establishment request message to the eNodeB. This step establishes a bearer context in the eNodeB and activates the S1 bearer.

In step s204, the eNodeB initiates a radio bearer establishment process, and the radio side bearer is restored.

Step s205, the data uplink is opened.

In step s206, the eNodeB responds to the initial context completion message, and notifies the MME of its user plane address and TEID.

In step s207, the MME sends an update bearer message to the S-GW, and notifies the S-GW of the user plane address and TEID fed back by the eNodeB. At this time, the downlink data link is opened.

Step s208, the S-GW responds to the message of updating the bearer.

Among them, the above step s203-step s206 is for the MME to restore the wireless access bearer of the air interface according to the reserved bearer context; step s207-step s208 is for the MME to update the downlink user plane tunnel through interaction with the S-GW.

The inventor found that the implementation in the prior art has the following problems:

In the case where the above-mentioned user and network enable the signaling saving mechanism, if the user uses the 3G network for services before accessing the LTE system, the PCC rule reserved in the P-GW is the PCC rule corresponding to 3G; and the user After accessing the LTE system, when the Service Request process is initiated to start the service, the 3G PCC rules may still be saved in the P-GW. Therefore, the fact that the reserved PCC rule used in the P-GW does not match the current access type of the user will cause the service performed by the user to be wrongly executed. Similarly, in the system (2G/3G and LTE) where the signaling saving is enabled, the technical defects mentioned above will also exist when the user conducts services.

Contents of the invention

Embodiments of the present invention provide a method and device for updating PCC rules, which are used to ensure that the PCC rules reserved for use in the P-GW are consistent with the current access type of the user.

In order to achieve the above object, an embodiment of the present invention provides a method for updating PCC rules, which is applied to a network with a saving signaling mechanism enabled, including the following steps:

When the state of the user terminal becomes activated, the S-GW receives the message of the user terminal sent by the MME or the SGSN, parses the message about the user terminal, and acquires the current access type of the user terminal;

Send a notification message carrying the current access type of the user terminal to the public data network gateway P-GW, and notify the P-GW to update the PCC.

The embodiment of the present invention also provides a serving gateway S-GW, which is used for PCC rule update control in a network with a saving signaling mechanism enabled, including:

The access type obtaining unit is used to receive the message of the user terminal sent by the MME or the SGSN when the state of the user terminal becomes active, the S-GW parses the message about the user terminal, and acquires the current access information of the user terminal. input type;

An update message sending unit, configured to send a notification message carrying the current access type of the user terminal obtained by the access type obtaining unit to the public data network gateway P-GW, and notify the P-GW to update the PCC.

Embodiments of the present invention also provide a notification functional entity, which is used for PCC rule update control in a network with a saving signaling mechanism enabled, including:

The access type acquiring unit is configured to parse the message about the user terminal and acquire the current access type of the user terminal when receiving a request sent by the user terminal enabled with the signaling saving mechanism;

The access type notification unit is configured to notify the serving gateway S-GW of the current access type of the user terminal acquired by the terminal access type acquisition unit, so that the S-GW sends the current access type of the user terminal to the P-GW. Type; the P-GW configures appropriate PCC rules for the user according to the current access type of the user terminal.

An embodiment of the present invention also provides a terminal device for reporting an access type when the saving signaling mechanism is enabled, including:

The terminal access type judging unit is used to judge whether the current access type is the same as the locally recorded access type when a request is made to the network side after system switching, and if not, notify the terminal access type notification unit, otherwise, do not perform any deal with;

The terminal access type notification unit is configured to notify the network side that the current access type of the terminal has changed through the access type change identifier when receiving the notification from the terminal access type judgment unit; The current access type of the terminal configures the appropriate PCC rules for the user.

Compared with the prior art, the embodiments of the present invention have the following advantages:

By using the technical solution of the present invention, after learning the access type of the user terminal, the S-GW notifies the P-GW of the current access type of the user terminal, and the P-GW configures the appropriate PCC rules. Therefore, the problem of the mismatch between the PCC rule and the current RAT mentioned in the technical shortcomings is avoided, so that the business can be carried out smoothly.

Description of drawings

FIG. 1 is an architecture diagram of a wireless evolution network in the prior art;

Fig. 2 is the Service Request flowchart under the LTE architecture in the prior art;

Fig. 3 is the flowchart of PCC rule update method in the embodiment of the present invention;

Fig. 4 is a Service Request flowchart initiated by a user under the LTE/SAE framework in Embodiment 1 of the present invention;

Fig. 5 is the Service Request flowchart that the user initiates under the 3G architecture in the second embodiment of the present invention;

Fig. 6 is the Service Request flowchart that the user initiates under the 3G framework in the embodiment of the present invention three;

Fig. 7 is a Service Request flowchart initiated by a user under the LTE/SAE architecture in Embodiment 4 of the present invention;

FIG. 8 is a flow chart of messages initiated by users under the 2G architecture in Embodiment 5 of the present invention;

9 is a schematic diagram of a PCC rule update system in Embodiment 6 of the present invention;

FIG. 10 is a schematic structural diagram of a terminal device in Embodiment 7 of the present invention.

Detailed ways

The implementation of the present invention will be further described in detail below in conjunction with the drawings and examples.

In an embodiment of the present invention, a method for updating PCC rules is provided, which is applied to a network in which a signaling saving mechanism is enabled, as shown in FIG. 3 , including the following steps:

In step s301, the S-GW receives information about the user terminal, and obtains the current access type of the user terminal.

Specifically, for different networks such as LTE and 3G, the method for obtaining the access type is the same. The mobility management entity (such as MME or SGSN) may send a notification message to the S-GW after sensing that the user status has changed to an active status. After receiving the message sent by the mobility management entity, the S-GW parses out the current access type of the user terminal.

In step s302, the S-GW sends a notification message carrying the current access type of the user terminal to the P-GW, and notifies the P-GW to update the PCC.

In step s303, the P-GW updates the PCC rule according to the current access type of the user terminal.

Specifically, according to the current access type of the user terminal, the P-GW obtains the corresponding PCC rule from the PCRF at the network side, or the P-GW obtains the corresponding PCC rule locally for use by the user terminal.

The specific application of a method for updating PCC rules in the embodiment of the present invention will be described below in combination with specific application scenarios.

In the first embodiment of the present invention, taking the S-GW located in the LTE network architecture to compare the received user's current access type with the access type saved by the S-GW as an example, a method in the embodiment of the present invention is described. PCC rule update method.

Specifically, the Service Request process initiated by the user under the LTE/SAE architecture is shown in Figure 4, including the following steps:

s401. The UE sends a NAS signaling Service Request to the eNodeB, requesting to restore the bearer on the air interface side.

s402. The eNodeB forwards the NAS signaling sent by the UE to the MME, and the NAS signaling authentication process may be executed; the MME perceives that the state of the UE has changed to an active state.

s403. The MME sends a context establishment request message to the eNodeB. This step establishes the bearer context in the eNodeB and activates the S1 bearer.

s404. The eNodeB initiates a process of establishing a radio bearer, and the radio side bearer is restored.

s405. The data uplink is opened.

s406. The eNodeB responds to the initial context completion message, and notifies the MME of its user plane address and TEID.

s407. The MME sends an update bearer message to the S-GW, and notifies the S-GW of the user plane address and TEID fed back by the eNodeB. When the network and the user enable saving signaling, the MME carries the user's access information in the message. Type RAT, at this time the downlink data link is opened. Wherein, the current access type of the user can be obtained from the information stored locally by the MME, or can be obtained from the interface type accessed by the user.

Wherein, the MME may obtain and store the current access type of the user in the attach procedure, the location area update procedure, and the handover procedure, or may obtain it from other procedures, which are not limited here.

s408. When the signaling saving mechanism is enabled, the S-GW parses the current access type of the user from the message sent by the MME, and compares it with the access type of the user saved by the S-GW, If the two are different, the P-GW is notified of the RAT currently used by the user through an Update Bearer Request (bearer update request message) message.

s409. If the P-GW does not have a PCC rule corresponding to the current RAT of the user, obtain it through interaction with the PCRF; if there is a corresponding PCC rule in the P-GW, specify the PCC rule for use by the bearer of the user.

s410. The P-GW returns a bearer update response Update Bearer Response (bearer update response message) to the S-GW.

s411. The S-GW returns a bearer update response to the MME.

This process adds optional steps s408 to s410 on the basis of the existing process. In steps s408 and s410, Update Bearer Request (bearer update request message) and Update BearerResponse (bearer update response message) are used to notify P-GW The RAT currently adopted by the user. After receiving the RAT parameters, the P-GW can ensure that the PCC rule is consistent with the current RAT, so as to ensure the smooth progress of services. Of course, the S-GW informs the P-GW that the current RAT of the user may not use the bearer update message, but use a separate message, such as PCC rule Update Request (PCC rule update request) and PCC rule Update Response (PCC rule update response).

It should be noted that, in this embodiment, if the S-GW finds that the access type used by the current user has changed, it will notify the P-GW of the RAT currently used by the user, and execute steps s409-s410; in step s409 , if there is no PCC rule corresponding to the current access type in the P-GW, it will interact with the PCRF to obtain a corresponding PCC rule.

In the method provided in this embodiment, the MME notifies the S-GW of the user's current access type, and the S-GW compares the user's current access type received from the MME with its locally saved user's access type, and determines Whether to notify P-GW to update PCC rules. In addition, the following changes can be made in this embodiment: In step s408, after the S-GW parses out the current access type of the user from the bearer update message of the MME, it directly reports to the P-GW without comparing whether the access type of the user has changed. The GW sends a message to inform the P-GW of the current access type of the user, so as to realize the update of the PCC rule.

In Embodiment 2 of the present invention, a method for updating PCC rules in the embodiment of the present invention is described by taking the S-GW located in the 3G network architecture to analyze the current access type of the user according to the message sent by the SGSN as an example.

The service request flow chart initiated by the user under the 3G architecture, as shown in Figure 5, includes the following steps:

s501. The RNC checks whether the RRC is connected, and if the RRC is not connected, it needs to establish an RCC connection with the UE.

s502. The UE sends a NAS signaling Service Request to the SGSN, requesting to restore the bearer on the air interface side, and the SGSN perceives that the state of the UE has changed to an active state.

s503. The SGSN sends a RAB assignment request to the RNC, and the NAS signaling authentication process may be executed.

s504, the RNC and the user interact to establish a radio bearer of the air interface.

s505. The RNC returns a RAB assignment response message to the SGSN.

s506. The SGSN judges whether the user has enabled the signaling saving mechanism, and if enabled, notifies the S-GW of the RAT currently used by the user through a bearer update request message. Wherein, the RAT adopted by the current user may specifically be that the SGSN obtains from the interface type of the user's access, such as the user accesses the SGSN from the Iu interface, then the user's current access type is 3G. The current access type of the user can also be obtained from the access type of the UE stored locally by the SGSN, or obtained by other entities and reported to the SGSN. Wherein, the SGSN may obtain and store the current access type of the user in the attach procedure, the location area update procedure, and the handover procedure, or may obtain it from other procedures, which are not limited here.

Here, regardless of whether the user's RAT changes, as long as the user enables the saving signaling mechanism, it will report to the S-GW.

s507. When saving signaling is enabled, the S-GW parses the current access type of the user from the message sent by the SGSN, and compares it with the access type of the user saved by the S-GW, if If the two are different, the P-GW is notified of the RAT currently used by the user through an Update Bearer Request (bearer update request message) message.

s508. If there is no PCC rule corresponding to the current RAT of the user in the P-GW, obtain it through interaction with the PCRF; if there is a corresponding PCC rule in the P-GW, specify the PCC rule for use by the bearer of the user.

s509. The P-GW returns a bearer update response to the S-GW.

s510. The S-GW returns a bearer update response to the SGSN.

s511. The SGSN may initiate a PDP modification process.

s512. The data uplink is opened.

Of course, in steps s507 and s509 of this embodiment, the S-GW notifies the P-GW of the user's current RAT and may not use bearer update messages, but use separate messages, such as PCC rule Update Request and PCC rule Update Response.

In this embodiment, in step s506, the SGSN judges whether the user has enabled the saving signaling mechanism. If it is enabled, the S-GW is notified of the radio access type RAT currently used by the user, that is, the subsequent procedures are initiated.

In the method provided in this embodiment, the SGSN notifies the S-GW of the user's current access type, and the S-GW compares the user's current access type received from the SGSN with the user's access type stored locally, and decides whether to Notify P-GW to update PCC rules. In addition, the following changes can be made in this embodiment: In s507, after the S-GW parses the user's current access type from the bearer update message of the SGSN, it does not compare whether the user's access type has changed, and directly reports to the P-GW The GW sends a message to notify the P-GW of the current access type of the user, thereby implementing the update of the PCC rules.

In the third embodiment of the present invention, a method for updating a PCC rule in the embodiment of the present invention is described by taking the UE located in the 3G network architecture carrying the identifier of the changed access type as an example.

Specifically, the Service Request process initiated by the user under the 3G architecture, as shown in Figure 6, includes the following steps:

s601. The RNC (Radio Network Controller, radio network controller) checks whether the RRC (Radio Resource Control, radio resource control) is connected. If the RRC is not connected, an RCC connection with the UE needs to be established.

s602. The UE sends a NAS signaling Service Request to the SGSN, requesting to restore the bearer on the air interface side, and the SGSN perceives that the state of the UE has changed to an active state.

Specifically, the RAT Change Indication (RAT Change Indication) parameter is carried in the Service Request request message to indicate to the SGSN whether the UE is consistent with the access type stored locally by the UE when the Service Request process occurs. This parameter is carried to the network under the condition that saving signaling is adopted, otherwise, the network does not need to be notified.

s603. The SGSN sends a RAB (Radio Access Bearer, radio access bearer) assignment request to the RNC, and the NAS signaling authentication process may be executed.

s604, the RNC and the user interact to establish a radio bearer of the air interface.

s605. The RNC returns a RAB assignment response message to the SGSN.

s606. The SGSN judges whether the user currently enables the signaling saving mechanism. If it is enabled, and the RAT Change Indication parameter indicates that the UE is inconsistent with the access type stored locally when the procedure occurs, the SGSN notifies the S-GW of the RAT used by the current user through the Update Bearer Request (bearer update request) message. Wherein, the RAT adopted by the current user may specifically be obtained by the SGSN from the interface type accessed by the user. If the user accesses the SGSN through the Iu interface, the current access type of the user is 3G. The current access type of the user can also be obtained from the access type of the UE stored locally by the SGSN, or obtained by other entities and reported to the SGSN. Wherein, the SGSN may obtain and store the current access type of the user in the attach procedure, the location area update procedure, and the handover procedure, or may obtain it from other procedures, which are not limited here.

s607. When the signaling saving mechanism is enabled, the S-GW parses the current access type of the user from the message sent by the SGSN, and compares it with the access type of the user saved by the S-GW, If the two are different, the P-GW is notified of the RAT currently used by the user through an Update Bearer Request (bearer update request message) message.

s608. If there is no PCC rule corresponding to the user's current RAT in the P-GW, obtain it through interaction with the PCRF; if there is a corresponding PCC rule in the P-GW, specify the PCC rule for the user's bearer to use.

s609. The P-GW returns a bearer update response to the S-GW.

s610. The S-GW returns a bearer update response to the SGSN.

s611. The SGSN may initiate a PDP modification procedure.

s612. The data uplink is opened.

Of course, in steps s607 and s608 in this embodiment, the S-GW notifies the P-GW of the user's current RAT. Instead of using the bearer update message, separate messages such as PCC rule Update Request and PCCrule Update Response may be used.

In this embodiment, the UE is required to carry the RAT Change Indication parameter in the Service Request message, which is used to indicate to the SGSN whether the UE is consistent with the access type stored locally by the UE when the Service Request process occurs. After receiving the RAB assignment response message, the SGSN decides whether to notify the S-GW of the user's current access type according to the instruction of the RAT Change Indication.

In this embodiment, the S-GW compares the user's current access type received from the SGSN with the user's access type stored locally, and decides whether to notify the P-GW to update the PCC rule. In addition, the following changes can be made in this embodiment: In s607, after the S-GW parses out the current access type of the user from the bearer update message of the SGSN, it does not compare whether the user access type has changed, and directly reports to the P-GW A message is sent to inform the P-GW of the current access type of the user, so as to implement the update of the PCC rule.

In Embodiment 4 of the present invention, a method for updating a PCC rule in an embodiment of the present invention is described by taking the UE located in the LTE network architecture as an example carrying an access type change identifier.

Specifically, the Service Request process initiated by the user under the LTE/SAE architecture, as shown in Figure 7, includes the following steps:

s701. The UE sends a NAS signaling Service Request to the eNodeB, requesting to restore the bearer on the air interface side. The RAT Change Indication parameter is carried in the Service Request request message, which is used to indicate to the MME whether the UE is consistent with the access type saved locally when the Service Request process occurs. This parameter is carried to the network under the condition that saving signaling is adopted, otherwise, the network does not need to be notified.

s702. The eNodeB forwards the NAS signaling sent by the UE to the MME, and the NAS signaling authentication process may be executed; the MME perceives that the UE state has changed to an active state.

s703. The MME sends a context establishment request message to the eNodeB. This step establishes the bearer context in the eNodeB and activates the S1 bearer.

s704. The eNodeB initiates a process of establishing a radio bearer, and the radio side bearer is restored.

s705. The data uplink is opened.

s706. The eNodeB responds to the initial context completion message, and notifies the MME of its user plane address and TEID.

s707. The MME sends an update bearer message to the S-GW, and notifies the S-GW of the user plane address and TEID fed back by the eNodeB. When the signaling saving mechanism is enabled, if the RAT ChangeIndication parameter indicates that the UE is inconsistent with the access type saved locally when the Service Request process occurs, the bearer update message sent by the MME to the S-GW must carry the user's current access type. The current access type of the user is obtained from the information stored locally by the MME, and may also be obtained from the type of interface accessed by the user.

Wherein, the MME may obtain and store the current access type of the user in the attach procedure, the location area update procedure, and the handover procedure, or may obtain it from other procedures, which are not limited here.

s708. When the signaling saving mechanism is enabled, the S-GW parses the current access type of the user from the message sent by the MME, and compares it with the access type of the user saved by the S-GW, If the two are different, the P-GW is notified of the RAT currently used by the user through an Update Bearer Request (bearer update request message) message.

s709. If there is no PCC rule corresponding to the user's current RAT in the P-GW, obtain it through interaction with the PCRF; if there is a corresponding PCC rule in the P-GW, specify the PCC rule for the user's bearer to use.

s710. The P-GW returns a bearer update response to the S-GW.

s711. The S-GW returns a bearer update response to the MME.

Of course, the bearer update message may not be used to notify the P-GW user of the current RAT, but a separate message, such as PCC rule Update Request and PCC rule Update Response.

In this embodiment, if the MME parses from the RAT Change Indication parameter that the access type adopted by the current user has changed, it must include the current RAT of the user in the bearer update message sent to the S-GW in step s707.

In the method provided in this embodiment, the S-GW compares the user's current access type received from the MME with its locally stored user's access type, and decides whether to notify the P-GW to update the PCC rule. In addition, the following changes can also be made in this embodiment: In step s708, after the S-GW parses out the user's current access type from the bearer update message of the SGSN, it does not compare whether the user's access type has changed, and directly sends the The P-GW sends a message to inform the P-GW of the current access type of the user, so as to realize the update of the PCC rule.

In Embodiment 5 of the present invention, a method for updating a PCC rule in the embodiment of the present invention is described by taking a UE located in a 2G network architecture as an example. First, the UE sends an uplink message to the SGSN, which may be data or signaling. After the SGSN receives the UE's uplink message, as shown in Figure 8, the following steps are performed:

Step s801 , the SGSN judges whether the user has enabled the signaling saving mechanism, and if so, notifies the S-GW of the RAT currently used by the user through a bearer update request message. Wherein, the RAT adopted by the current user may specifically be obtained by the SGSN from the interface type accessed by the user. If the user accesses the SGSN through the Gb interface, the current access type of the user is 2G. The current access type of the user can also be obtained from the access type of the UE stored locally by the SGSN, or obtained by other entities and reported to the SGSN. Here, regardless of whether the user's RAT changes, as long as the user enables the saving signaling mechanism, it will report to the S-GW. Wherein, the SGSN may obtain and store the current access type of the user in the attach procedure, the location area update procedure, and the handover procedure, or may obtain it from other procedures, which are not limited here.

Step s802, when saving signaling is enabled, the S-GW parses the user's current access type from the message sent by the SGSN, and compares it with the user's access type stored in the S-GW Comparison, if the two are different, the P-GW is notified of the RAT currently used by the user through an Update Bearer Request (bearer update request message) message.

Step s803, if there is no PCC rule corresponding to the user's current RAT in the P-GW, obtain it through interaction with the PCRF; if there is a corresponding PCC rule in the P-GW, specify the PCC rule for the user's bearer to use.

In step s804, the P-GW returns a bearer update response to the S-GW.

In step s805, the S-GW returns a bearer update response to the SGSN.

Of course, in steps s802 and s804 of the process of this embodiment, the S-GW notifies the P-GW of the user's current RAT, and may not use the bearer update message, but use separate messages, such as PCC rule UpdateRequest and PCC rule Update Response.

In the method provided in this embodiment, the SGSN notifies the S-GW of the user's current access type, and the S-GW compares the user's current access type received from the SGSN with its locally saved user's access type, and decides whether to notify P-GW to update PCC rules. In addition, the following changes can be made in this embodiment: In s802, after the S-GW parses out the current access type of the user from the bearer update message of the SGSN, it does not compare whether the access type of the user has changed, and directly reports to the P - The GW sends a message to inform the P-GW of the current access type of the user, so as to realize the update of the PCC rule.

By using the above method provided by the present invention, after learning the access type of the user terminal, the S-GW notifies the P-GW of the current access type of the user terminal, and the P-GW configures the user terminal according to the current access type of the user terminal. Appropriate PCC rules. In this way, the problem of the mismatch between the PCC rule and the current RAT mentioned in the technical shortcomings is avoided, so that the business can be carried out smoothly.

Embodiment 6 of the present invention also provides a PCC rule update system, which is applied to a network in which the saving signaling mechanism is enabled, as shown in Figure 9, including S-GW 10, notification functional entity 20 and P-GW30, wherein : S-GW 10 acquires the occurrence of the current access type of the user terminal sent by the notification function entity 20, and sends a notification message carrying the current access type of the user terminal to P-GW 30, and notifies P-GW 30 to update the PCC.

Specifically, S-GW 10 further includes:

The access type acquisition unit 11 is used to obtain the current access type of the user terminal when receiving a message about the user terminal;

The update message sending unit 12 is configured to send a notification message carrying the current access type of the user terminal obtained by the access type obtaining unit 11 to the P-GW 30, and notify the P-GW 30 to update the PCC.

The access type judging unit 13 is used to judge whether the current access type of the user terminal acquired by the access type obtaining unit 12 is the same as the access type of the local record, and if not, notify the update message sending unit 12 to update the PCC, otherwise Stop PCC rule update.

Specifically, the notification function entity 20 further includes:

The access type acquisition unit 21 is configured to acquire the current access type of the user terminal when receiving a request sent by the user terminal that has enabled the signaling saving mechanism;

The access type notification unit 22 is configured to notify the S-GW 10 of the current access type of the user terminal acquired by the terminal access type acquisition unit 21.

The access type change identification obtaining unit 23 is configured to obtain the change identification of the user terminal access type carried in the request when receiving the request sent by the user terminal that has enabled the signaling saving mechanism;

The access type notification judgment unit 24 is configured to notify the access type notification unit 22 to notify the user terminal of the current access type when the access type change identifier obtained by the access type change identifier acquisition unit 23 indicates that the terminal access type changes. S-GW 10; otherwise no processing is performed.

Specifically, the notification functional entity is specifically: the MME in the LTE architecture; or the SGSN in the 2G/3G architecture.

Embodiment 6 of the present invention also provides a terminal device, which is used to report the access type change identifier when the saving signaling mechanism is enabled in the LTE network or 2G/3G network. Its structure is shown in FIG. 10 , including

The terminal access type judging unit 91 is configured to judge whether the current access type is the same as the locally recorded access type when initiating a request to the network side, and if not, notify the terminal access type notification unit, otherwise, do not perform any processing;

The terminal access type notification unit 92 is configured to notify the network side through the access type change identifier that the current access type of the terminal has changed when receiving the notification from the terminal access type judgment unit 92 . The reported object may be the MME in the LTE network, or the SGSN in the 3G network.

By using the above-mentioned system and equipment provided by the present invention, after the S-GW knows the access type of the user terminal, it notifies the P-GW of the current access type of the user terminal, and the P-GW according to the current access type of the user terminal Configure appropriate PCC rules for users. Therefore, the problem that the PCC rule mentioned in the technical disadvantage does not match the current RAT is avoided, so that the business can be carried out smoothly.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is a better implementation Way. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions to make a The station device executes the methods described in various embodiments of the present invention.

The above disclosures are only a few specific embodiments of the present invention, however, the present invention is not limited thereto, and any changes conceivable by those skilled in the art shall fall within the protection scope of the present invention.

Claims (13)

1. strategy and charging control PCC rule update method have been applied to enable in the network of saving signaling mechanism, it is characterized in that, may further comprise the steps:

When user terminal state became activated state, S-GW received the message of the user terminal that is sent by MME or SGSN, resolves described message about user terminal, obtains the current access style of described user terminal;

Send the notification message that carries the current access style of described user terminal to public data network gateway P-GW, notify described P-GW to carry out PCC and upgrade.

2. PCC rule update method according to claim 1 is characterized in that, describedly also comprises after obtaining the current access style of described user terminal:

Judge whether the current access style of described user terminal is identical with the access style of local record, then stop, if then continuation inequality as if identical.

3. PCC rule update method according to claim 1 is characterized in that described reception is obtained the current access style of described user terminal and is specially about the message of user terminal:

In Long Term Evolution net LTE framework, the message that receiving mobility management entity MME sends about described user terminal;

Resolve described message, obtain the current access style of described user terminal about user terminal;

Or

In 3G (Third Generation) Moblie 3G framework, receive the message that Serving GPRS Support Node SGSN sends about described user terminal;

Resolve described message, obtain the current access style of described user terminal about user terminal.

4. as PCC rule update method as described in the claim 3, it is characterized in that,

Also comprise before the message that described reception MME sends about described user terminal:

The access style that described MME receives user terminal changes sign, and when described access style changed access style that sign is designated as described user terminal and changes, described MME obtained the current access style of described user terminal and sends;

Also comprise before the message that described reception SGSN sends about described user terminal:

The access style that described SGSN receives user terminal changes sign, and when described access style changed access style that sign is designated as described user terminal and changes, described SGSN obtained the current access style of described user terminal and sends.

5. as PCC rule update method as described in the claim 2, it is characterized in that, described judge the current access style of described user terminal and local record about the access style of described terminal identical being specially whether:

According to the current access style of described user terminal that obtains, and the access style of the described user terminal of local record, judge whether the current access style of described user terminal is identical with the access style of local record.

6. PCC rule update method according to claim 1 is characterized in that, describedly sends the notification message that carries the current access style of user terminal to P-GW and is specially:

Send bearer update message or PCC Policy Updates message to described P-GW, notify the described user terminal of described P-GW current access style.

7. as PCC rule update method as described in claim 1 or 6, it is characterized in that, described to P-GW send carry the notification message of the current access style of user terminal after, also comprise:

The access style that described P-GW is current according to described user terminal obtains corresponding PCC rule from local or tactful and charging decision making function PCRF, uses for described user terminal.

8. a gateway S-GW has been applied to enable in the network of saving signaling mechanism, it is characterized in that, comprising:

The access style acquiring unit is used for when user terminal state becomes activated state, and S-GW receives the message of the user terminal that is sent by MME or SGSN, resolves described message about user terminal, obtains the current access style of described user terminal;

The updating message transmitting element is used for sending the notification message carry the current access style of user terminal that described access style acquiring unit obtains to public data network gateway P-GW, notifies described P-GW to carry out PCC and upgrades.

9. as S-GW as described in the claim 8, it is characterized in that, also comprise:

The access style judging unit is used to judge whether the current access style of user terminal that described access style acquiring unit obtains is identical with the access style of local record, if inequalityly then notify described updating message transmitting element to carry out PCC to upgrade.

10. an informing function entity has been applied to enable in the network of saving signaling mechanism, it is characterized in that, comprising:

The access style acquiring unit when being used to receive the request of the user terminal transmission of having enabled saving signaling mechanism, is resolved the message about user terminal, obtains the current access style of described user terminal;

The access style notification unit is used for the current access style notification service gateway S-GW of described user terminal that described access style acquiring unit is obtained, so that S-GW sends the current access style of user terminal to P-GW; Is that the user disposes suitable PCC rule by P-GW according to the current access style of user terminal.

11. as informing function entity as described in the claim 10, it is characterized in that, also comprise:

Access style changes the sign acquiring unit, when being used to receive the request of the user terminal transmission of having enabled saving signaling mechanism, obtains the variation sign of the user terminal access style that carries in the described request;

Access style notice judging unit is used for when the described access style that obtains changes the variation of sign indicating terminal access style, notifies described access style notification unit the access style notice S-GW that described user terminal is current.

12., it is characterized in that described informing function entity is specially as informing function entity as described in claim 10 or 11:

MME in the LTE framework; Or the SGSN in the 2G/3G framework.

13. a terminal equipment, the access style when being used to enable saving signaling mechanism reports, and it is characterized in that, comprising:

Terminal access style judging unit is used for system and switches the back when network side is initiated request, judges whether current access style is identical with the access style of local record;

Terminal access style notification unit is used for when terminal access style judgment unit judges access style is inequality, changes the current access style of the sign described terminal of informing network side by access style variation has taken place; Is that the user disposes suitable PCC rule by P-GW according to the current access style of user terminal.

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