WO2009076814A1

WO2009076814A1 - An updating method and device for pcc rule

Info

Publication number: WO2009076814A1
Application number: PCT/CN2008/072769
Authority: WO
Inventors: Qiu SHANG; Caixia Qi
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2007-12-14
Filing date: 2008-10-21
Publication date: 2009-06-25
Also published as: CN101459906A; CN101459906B

Abstract

An updating method for PCC rule is provided, which is applied in the network using the mechanism of saving signaling. The method includes that the user terminal information is received and the current access type of the user terminal is achieved, when the state of the user terminal becomes active state; the notice information carrying the current access type of the user terminal is transmitted to the gateway device P-GW, and the P-GW is noticed to update PCC. An updating device for PCC rule is also provided. By using the examples of the invention, S-GW tells P-GW the current access type of the user terminal, and P-GW configures the appropriate PCC rule for the user according to the current access type of the user terminal. Therefore, it avoids the problem in the technology defect that PCC rule does not match the current access type, and it makes the service go on successfully.

Description

PCC rule update method and device

Technical field

The present invention relates to the field of communications technologies, and in particular, to a PCC rule updating method and device under the saving signaling. Background technique

The core network of the wireless evolved network mainly includes three logical functions: MME (Mobility Management Entity), Serving Gateway, PDN Gateway (Public Data Network Gateway), among them, MME Responsible for NAS (Non-Access Stratum) signaling and NAS signaling encryption, roaming, tracking, etc., assigning user temporary identity, security functions, etc., which corresponds to current UMTS (Universal Mobile Telecommunications System) System) The control plane part of the system's internal SGSN (Serving GPRS Support Node). The Serving Gateway (hereafter referred to as S-GW) is responsible for local mobility anchors and mobility anchors within the 3GPP (3rd Generation Partnership Project) system and legal interception related information.

The PDN Gateway (hereinafter referred to as P-GW) is responsible for policy enforcement and accounting and lawful interception related functions. The policy enforcement and charging are based on PCC (Policy and Charging Control) rules. The PCC rules are The functional entity of the Policy and Charging Rule Function (PCRF) is sent to the P-GW. When a PCC rule is sent by a PCRF entity, the PCC rule needs to be determined according to the current RAT (Radio Access Type) of the user. Different RATs may issue different PCC rules.

Saving signaling, also known as Idle-mode Signaling Reduction (ISR). When different types of access, such as 2G/3G and LTE (Long Term Evolution) / SAE (System Architecture Evolution), are deployed simultaneously, users will frequently between systems of different access types. Switching, such as a user switching from 3G to LTE, wastes a lot of air interface resources. Most of the users are in an idle state. In order to reduce the occurrence of such a handover process for the user's idle state, the concept of ISR is proposed. The ISR can only save the air interface signaling for the user equipment in the idle state. Some principles that the ISR should follow are as follows: The UE registers with the MME and the SGSN respectively; the MME and the SGSN register with the HSS, and the HSS maintains the PS registration; the SGSN and the MME need to inform the UE whether to use the ISR function; the ISR mechanism is not used in the URA-PCH state; The 3G uses the ISR mechanism, and the user plane in the idle mode terminates at the S-GW; whether the UE is used to use the ISR function needs to be notified to the S-GW; the UE runs two periodic update timers, and periodically updates the SGSN and the MME respectively. The SGSN and the MME should avoid the PDP context on the Serving GW or the bearer context from being deleted when the user is implicitly separated due to the periodic update. If the user and the network enable the signaling mechanism, if the user uses the 3G network to perform services before accessing the LTE system, the PCC rule retained in the P-GW is the PCC rule corresponding to the 3G; After the user accesses the LTE system, when the service request process is initiated and the service is started, the 3G PCC rule that is likely to remain in the P-GW is still stored. Therefore, the case that the PCC rule reserved for use in the P-GW does not match the current access type of the user may cause the service performed by the user to be erroneously executed. Similarly, in systems where signaling is enabled (2G/3G and LTE), the above mentioned technical flaws are also present when users conduct services. Summary of the invention

An embodiment of the present invention provides a method and a device for updating a PCC rule, which are used to ensure that a PCC rule reserved for use in a P-GW is consistent with a current access type of a user.

To achieve the above objective, an embodiment of the present invention provides a PCC rule update method, which is applied to a network in which a signaling mechanism is enabled, and includes the following steps:

Receiving a message about the user terminal, and acquiring a current access type of the user terminal, when the state of the user terminal is changed to an active state; Sending a notification message carrying the current access type of the user terminal to the gateway device P-GW, and notifying the P-GW to perform PCC update.

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

An access type obtaining unit, configured to receive a message about the user terminal when the state of the user terminal becomes an active state, and acquire a current access type of the user terminal;

And an update message sending unit, configured to send, to the P-GW, a notification message that carries the current access type of the user terminal acquired by the access type acquiring unit, and notify the P-GW to perform PCC update.

The embodiment of the present invention further provides a notification function entity, which is used to enable PCC rule update control in a network with a signaling mechanism, including:

An access type obtaining unit, configured to acquire a current access type of the user terminal when receiving a request sent by a user terminal that is enabled with a signaling mechanism;

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

The embodiment of the present invention further provides a terminal device, configured to enable access type reporting when the signaling mechanism is enabled, including:

The terminal access type determining unit is configured to determine whether the current access type is the same as the locally recorded access type when the system initiates a request to the network side, 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 by using the access type change identifier when receiving the notification of the terminal access type determining unit.

Embodiments of the present invention have the following advantages over the prior art:

By using the technical solution of the present invention, after the S-GW learns 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 according to the current access type of the user terminal. PCC rules. Therefore, the problem that the PCC rule and the current RAT do not match in the technical disadvantage are avoided, so that the service can be smoothly performed. DRAWINGS

1 is a flowchart of a method for updating a PCC rule in an embodiment of the present invention; FIG. 2 is a flowchart of a service request initiated by a user in an LTE/SAE architecture according to Embodiment 1 of the present invention;

3 is a flowchart of a service request initiated by a user in a 3G architecture in Embodiment 2 of the present invention;

4 is a flowchart of a service request initiated by a user in a 3G architecture in Embodiment 3 of the present invention;

5 is a flowchart of a service request initiated by a user in an LTE/SAE architecture according to Embodiment 4 of the present invention;

6 is a message flow chart of a user initiated message in a 2G architecture according to Embodiment 5 of the present invention; FIG. 7 is a schematic diagram of a PCC rule update system in Embodiment 6 of the present invention; FIG. 8 is a schematic diagram of a terminal device in Embodiment 7 of the present invention; Schematic. detailed description

The embodiments of the present invention will be further described in detail below with reference to the drawings and embodiments.

In the embodiment of the present invention, a PCC rule update method is provided, which is applied to a network in which a signaling mechanism is enabled. As shown in FIG. 1, the method includes the following steps:

Step sl01: The S-GW receives the message 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 of obtaining the access type is the same. The mobility management entity (such as the MME or SGSN) may send a notification message to the S-GW after sensing that the user state becomes active. After receiving the message sent by the mobility management entity, the S-GW parses out the current access type of the user terminal.

Step sl02: 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 perform PCC update.

Step s101, the P-GW updates the PCC rule according to the current access type of the user terminal. Then.

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

A specific application of a PCC rule update method in the embodiment of the present invention is described below in conjunction with a specific application scenario.

In the first embodiment of the present invention, the S-GW in the LTE network architecture compares the current access type of the user with the access type saved by the S-GW, and illustrates an example in the embodiment of the present invention. PCC rule update method.

Specifically, the service request process initiated by the user in the LTE/SAE architecture is as shown in FIG. 2, and includes the following steps:

S201: The UE sends a NAS signaling Service Request to the eNodeB, and requests to restore the bearer on the air interface side.

S202: The eNodeB forwards the NAS signaling sent by the UE to the MME, and the NAS signaling authentication process may be performed; the MME perceives that the UE state transitions to an active state.

S203. The MME sends a context setup request message to the eNodeB. This step establishes a bearer context in the eNodeB and activates the S1 bearer.

S204: The eNodeB initiates a process of establishing a radio bearer, and the radio side bearer is restored. S205, the data uplink is opened.

S206. The eNodeB responds to the initial context complete message, and notifies the MME of its user plane address and TEID.

S207. The MME sends an update bearer message to the S-GW, and notifies the S-GW of the user plane address and the TEID fed back by the eNodeB. When the network and the user enable the saving signaling, the MME carries the user access in the message. Type RAT, at which point the downlink data link is up. The current access type of the user may be obtained from information stored locally by the MME, or may be obtained from an interface type accessed by the user.

The MME may obtain the current access type of the user in the attaching process, the location area update process, and the switching process, and may also be saved from other processes, which is not limited herein. S208. If the saving signaling 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 S-GW to save the access type of the user. If the two are different, the RAT currently used by the P-GW user is notified by an Update Bearer Request message.

S209. If the P-GW does not have the PCC rule corresponding to the current RAT of the user, obtain the interaction with the PCRF. If there is a corresponding PCC rule in the P-GW, specify the PCC rule to use for the bearer of the user.

S210: The P-GW returns a bearer update response Update Bearer Response to the S-GW.

S211: The S-GW returns a bearer update response to the MME.

This process adds optional steps s208 to s210 based on the existing flow, and uses Update Bearer Request and Update Bearer Response to notify P in step s208 and step s210. - The RAT currently used by the GW user. After receiving the RAT parameters, the P-GW can ensure that the PCC rules are consistent with the current RAT, thus ensuring the smooth running of the service. Of course, the S-GW notifies the P-GW user that the current RAT may not use the bearer update message, but uses separate messages, such as PCC rule Update Request and 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 changes, the P-GW user is notified of the currently used RAT, and steps s209 to s210 are performed; In s209, if there is no PCC rule corresponding to the current access type in the P-GW, the PCC rule of the response is obtained by interacting with the PCRF.

In the method provided in this embodiment, the MME notifies the current access type of the S-GW user, and the S-GW compares the current access type of the user received by the MME with the access type of the user that is locally saved, and determines Whether to notify the P-GW to update the PCC rules. In addition, in this embodiment, the following changes can be made: In step s208, after the S-GW parses the current access type of the user from the bearer update message of the MME, the S-GW does not compare whether the user access type changes, directly to the P- The GW sends a message to inform the P-GW user of the current access type, thereby implementing the update of the PCC rule. In the second embodiment of the present invention, the S-GW located in the 3G network architecture parses the current access type of the user according to the message sent by the SGSN, and illustrates a PCC rule update method in the embodiment of the present invention.

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

S301: The RNC checks whether the RRC is connected. If the RRC is not connected, an RCC connection needs to be established with the UE.

S302: The UE sends a NAS signaling service request to the SGSN, and requests to restore the bearer on the air side, and the SGSN detects that the UE state is changed to an active state.

S303. The SGSN sends an RAB assignment request to the RNC, and the NAS signaling authentication process may be performed.

S304, RNC and user interaction establish a radio bearer for the air interface.

S305. The RNC returns an RAB assignment response message to the SGSN.

S306. The SGSN determines whether the saving signaling mechanism is currently enabled by the user. If enabled, the RAT is notified by the bearer update request message to the currently used RAT of the S-GW user. The RAT of the current user may be obtained by the SGSN from the interface type accessed by the user. For example, if the user accesses the SGSN from the Iu interface, the current access type of the user is 3G. The current access type of the user may also be obtained from the access type stored locally by the SGSN for the UE, or obtained by other entities and reported to the SGSN. The SGSN can obtain the current access type of the user in the attaching process, the location area update process, and the switching process, and can also be saved from other processes, which is not limited herein.

Here, regardless of whether the RAT of the user changes, the S-GW is reported to the S-GW as long as the user enables the saving signaling mechanism.

S307. If the 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 S-GW to save the access type of the user, if If the two are different, the RAT of the P-GW user is currently notified by the Update Bearer Request message.

S308. If there is no PCC rule corresponding to the current RAT of the user in the P-GW, Obtained by interacting with the PCRF; if there is a corresponding PCC rule in the P-GW, the PCC rule is specified to be used by the user.

S309. The P-GW returns a bearer update response to the S-GW.

S310: The S-GW returns a bearer update response to the SGSN.

S311. The SGSN may initiate a PDP modification process.

S312, the data uplink is opened.

Of course, in step s307, s309 in the embodiment, the S-GW notifies the P-GW user that the current RAT may not use the bearer update message, but uses separate messages, such as PCC rule Update Request and PCC rule Update Response.

In this embodiment, in step s306, the SGSN determines whether the user has enabled the protocol signaling mechanism. If enabled, the S-GW user is notified of the radio access type RAT currently used, that is, the subsequent process is initiated.

In the method provided by the embodiment, the SGSN notifies the current access type of the S-GW user, and the S-GW compares the current access type of the user received by the SGSN with the access type of the user that is locally saved, and determines whether The P-GW is notified to update the PCC rules. In addition, in this embodiment, the following changes can be made: In s307, after the S-GW parses the current access type of the user from the bearer update message of the SGSN, does the comparison of whether the user access type changes, directly to the P- The GW sends a message to inform the P-GW user of the current access type, thereby implementing the update of the PCC rule. 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 using an identifier of a UE that is located in a 3G network architecture to change the access type.

Specifically, the service request process initiated by the user in the 3G architecture, as shown in FIG. 4, includes the following steps:

S401, RNC (Radio Network Controller, Radio Network Controller) checks whether RRC (Radio Resource Control) is connected. If RRC is not connected, it needs to establish an RCC connection with the UE.

S402. The UE sends a NAS signaling service request to the SGSN, and requests to restore the air interface side bearer, and the SGSN detects that the UE state transitions to an active state. Specifically, the service request request message carries a RAT Change Indication parameter, and indicates to the SGSN whether the UE is consistent with the access type saved locally by the UE when the Service Request process occurs. This parameter is carried to the network under the condition that the signaling is saved, otherwise the network does not need to be notified.

S403. The SGSN sends an RAB (Radio Access Bearer) assignment request to the RNC, and the NAS signaling authentication process may be performed.

S404, RNC and user interaction establish a radio bearer for the air interface.

S405. The RNC returns an RAB assignment response message to the SGSN.

S406. The SGSN determines whether the user is currently enabled with a saving signaling mechanism. If enabled, and the RAT Change Indication parameter indicates that the UE does not match the access type locally saved by the UE when the process occurs, the SGSN notifies the current RAT of the S-GW by the Update Bearer Request message. . The RAT of the current user may be obtained by the SGSN from the type of the interface accessed by the user. If the user accesses the SGSN from 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 stored locally by the SGSN for the UE, or obtained by other entities and reported to the SGSN. The SGSN can obtain the current access type of the user in the attaching process, the location area update process, and the switching process, and can also be saved from other processes, which is not limited herein.

S407. When the saving signaling 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 S-GW to save the access type of the user. If the two are different, the RAT currently used by the P-GW user is notified by an Update Bearer Request message.

S408. If there is no PCC rule corresponding to the current RAT of the user in the P-GW, the interaction is obtained by interacting with the PCRF. If there is a corresponding PCC rule in the P-GW, the PCC rule is specified to be used by the user.

S409. The P-GW returns a bearer update response to the S-GW.

S410: The S-GW returns a bearer update response to the SGSN.

S411. The SGSN may initiate a PDP modification process.

S412, the data uplink is opened. Of course, in the steps s407 and s408 in the embodiment, the S-GW notifies the P-GW user that the current RAT may not use the bearer update message, but uses separate messages such as a PCC rule Update Request and a PCC rule Update Response.

In this embodiment, the UE is required to carry the RAT Change Indication parameter in the Service Request message, and is used to indicate to the SGSN whether the UE is consistent with the access type saved locally by the UE when the Service Request process occurs. After receiving the RAB assignment response message, the SGSN determines whether it is necessary to notify the S-GW of the current access type of the user according to the indication of the RAT Change Indication.

In this embodiment, the S-GW compares the current access type of the user received by the SGSN with the access type of the user stored locally, and determines whether to notify the P-GW to update the PCC rule. In addition, in this embodiment, the following changes can be made: In s407, after the S-GW parses the current access type of the user from the bearer update message of the SGSN, the S-GW does not compare whether the user access type changes, and directly goes to the P-GW. The message is sent to inform the P-GW user of the current access type, thereby implementing the update of the PCC rule. In the fourth embodiment of the present invention, a method for updating a PCC rule in the embodiment of the present invention is described by using an identifier of a UE that is located in an LTE network architecture to change the access type.

Specifically, the service request process initiated by the user in the LTE/SAE architecture, as shown in FIG. 5, includes the following steps:

S501: The UE sends a NAS signaling Service Request to the eNodeB, and requests to restore the air interface side bearer. The service request request message carries the RAT Change Indication parameter, and is used to indicate to the MME whether the UE is consistent with the access type saved locally by the UE when the Service Request process occurs. This parameter is carried to the network under the condition that the signaling is saved, otherwise the network does not need to be notified.

S502: The eNodeB forwards the NAS signaling sent by the UE to the MME, and the NAS signaling authentication process may be performed; the MME perceives that the UE state transitions to an active state.

S503. The MME sends a context setup request message to the eNodeB. This step establishes a bearer context in the eNodeB and activates the S1 bearer.

S504: The eNodeB initiates a process of establishing a radio bearer, and the radio side bearer is restored. S505, the data uplink is opened.

S506. The eNodeB responds to the initial context complete message, and notifies the MME of its user plane address and TEID.

S507: The MME sends an update bearer message to the S-GW, and notifies the S-GW of the user plane address and the TEID fed back by the eNodeB. If the RAT Change Indication parameter is used to indicate that the UE is inconsistent with the access type saved by the UE when the Service Request process occurs, the MME must carry the bearer update message to the S-GW. Access type. The current access type of the user is obtained from the information stored locally by the MME, and can also be obtained from the interface type accessed by the user.

The MME may obtain the current access type of the user in the attaching process, the location area update process, and the switching process, and may also be saved from other processes, which is not limited herein.

S508. If the saving signaling 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 S-GW to save the access type of the user. If the two are different, the RAT currently used by the P-GW user is notified by an Update Bearer Request message.

S509. If there is no PCC rule corresponding to the current RAT of the user in the P-GW, the interaction is obtained by interacting with the PCRF. If there is a corresponding PCC rule in the P-GW, the PCC rule is specified to be used by the user.

S510. The P-GW returns a bearer update response to the S-GW.

S511. The S-GW returns an update response to the MME.

Of course, the P-GW user is notified that the current RAT can also use the bearer update message instead of the separate message, such as PCC rule Update Request and PCC rule Update Response.

In this embodiment, if the MME detects that the access type used by the current user has changed from the RAT Change Indication parameter, the current RAT of the user must be carried in the bearer update message sent to the S-GW in step s507.

In the method provided by this embodiment, the S-GW compares the current access type of the user received by the MME with the access type of the user that is locally saved, and determines whether to notify the P-GW. To update the PCC rules. In addition, in this embodiment, the following changes can be made: In step s508, after the S-GW parses the current access type of the user from the bearer update message of the SGSN, the S-GW does not compare whether the user access type changes, directly The P-GW sends a message to inform the P-GW user of the current access type, thereby implementing the update of the PCC rule. In the fifth embodiment of the present invention, a UE in a 2G network architecture is taken as an example to describe a PCC rule update method in the embodiment of the present invention. First, the UE sends an uplink message to the SGSN, which may be data or signaling. After receiving the uplink message of the UE, the SGSN performs the following steps as shown in FIG. 6:

Step s601: The SGSN determines whether the saving signaling mechanism is currently enabled by the user, and if enabled, notifies the current RAT of the S-GW user by using the bearer update request message. The RAT of the current user may be obtained by the SGSN from the type of the interface accessed by the user. For example, if the user accesses the SGSN from the Gb interface, the current access type of the user is 2G. The current access type of the user may also be obtained from the access type stored locally by the SGSN for the UE, or obtained by other entities and reported to the SGSN. Here, regardless of whether the user's RAT changes, the S-GW is performed on the S-GW as long as the user enables the saving signaling mechanism. The SGSN can obtain the current access type of the user in the attaching process, the location area update process, and the switching process, and can also be saved from other processes, which is not limited herein.

Step s602: In the case that the 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 saved in the S-GW for the user. For comparison, if the two are different, the RAT currently used by the P-GW user is notified by an Update Bearer Request message.

Step s603: If there is no PCC rule corresponding to the current RAT of the user in the P-GW, obtain the interaction with the PCRF; if there is a corresponding PCC rule in the P-GW, specify the bearer usage of the PCC rule to the user.

Step s604: The P-GW returns a bearer update response to the S-GW.

Step s605: The S-GW returns a bearer update response to the SGSN.

Of course, the S-GW notifies the P-GW in steps s602 and s604 in the process of this embodiment. The user's current RAT can also use the bearer update message instead of the separate message, such as PCC rule Update Request and PCC rule Update Response.

In this embodiment, the SGSN notifies the current access type of the S-GW user, and the S-GW compares the current access type of the user received by the SGSN with the access type of the user that is locally saved, and determines whether to notify. P-GW to update PCC rules. In addition, in this embodiment, the following changes can be made: In s602, after the S-GW parses the current access type of the user from the bearer update message of the SGSN, the S-GW does not compare whether the access type of the user changes, directly to the P. The GW sends a message to inform the P-GW user of the current access type, thereby implementing the update of the PCC rule.

By using the foregoing method provided by the present invention, after the S-GW learns 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 according to the current access type of the user terminal. The right PCC rules. Therefore, the problem that the PCC rule and the current RAT do not match in the technical disadvantage are avoided, so that the service can be smoothly performed. The sixth embodiment of the present invention further provides a PCC rule update system, which is applied to a network in which a signaling mechanism is enabled. As shown in FIG. 7, the S-GW 10, the notification function entity 20, and the P-GW 30 are included. The S-GW 10 acquires 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 the P-GW 30, and notifies the P-GW 30 to perform the PCC update.

Specifically, the S-GW 10 further includes:

The access type obtaining unit 11 is configured to acquire a current access type of the user terminal when receiving the message about the user terminal;

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

The access type determining unit 13 is configured to determine whether the current access type of the user terminal acquired by the access type acquiring unit 11 is the same as the access type of the local record, and if not, notify the update message sending unit 12 to perform PCC update, otherwise Stop PCC rule updates. Specifically, the notification function entity 20 further includes:

The access type obtaining unit 21 is configured to acquire a current access type of the user terminal when receiving a request sent by the user terminal that is enabled with the saving signaling 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 acquiring unit 21.

The access type change identifier obtaining unit 23 is configured to: when receiving the request sent by the user terminal with the saving signaling mechanism enabled, obtain the change identifier of the user terminal access type carried in the request;

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

Specifically, the notification function entity may be: an MME in an LTE architecture; or an SGSN in a 2G/3G architecture.

The sixth embodiment of the present invention further provides a terminal device, configured to report the access type change identifier when the signaling mechanism is enabled in the LTE network or the 2G/3G network, and the structure thereof is as shown in FIG.

The terminal access type determining unit 81 is configured to determine whether the current access type is the same as the locally recorded access type when the request is initiated to the network side, and notify the terminal access type notification unit if different, otherwise no processing is performed;

The terminal access type notification unit 82 is configured to notify the network side by using the access type change identifier when receiving the notification of the terminal access type determining unit 82: The current access type of the terminal has changed. The reported object can be the MME in the LTE network and the SGSN in the 2G/3G network.

By using the above-mentioned system and device provided by the present invention, after the S-GW learns 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 current access type of the user terminal is determined by the P-GW. The user configures the appropriate PCC rules. Therefore, the problem that the PCC rule and the current RAT do not match in the technical disadvantage are avoided, so that the service can be smoothly performed. Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by hardware, or can be implemented by means of software plus necessary general hardware platform, and the technical solution of the present invention. It can be embodied in the form of a software product that can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including a number of instructions for making a computer device (may It is a personal computer, a server, or a network device, etc.) that performs the methods described in various embodiments of the present invention.

In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Rights request

A policy and charging control PCC rule update method is applied to a network in which a signaling mechanism is enabled, and is characterized in that it comprises the following steps:

Receiving a message about the user terminal, and acquiring a current access type of the user terminal, when the state of the user terminal is changed to an active state;

Sending a notification message carrying the current access type of the user terminal to the gateway device P-GW, and notifying the P-GW to perform PCC update.

2. The PCC rule update method according to claim 1, wherein the obtaining the current access type of the user terminal further comprises:

Determining whether the current access type of the user terminal is the same as the local access type. If not, sending a notification message carrying the current access type of the user terminal to the gateway device P-GW.

The method for updating a PCC rule according to claim 1, wherein the receiving the message about the user terminal, obtaining the current access type of the user terminal comprises: receiving the mobility management in the LTE architecture of the long term evolution network a message about the user terminal sent by the entity MME;

Parsing the message about the user terminal, and acquiring the current access type of the user terminal;

Or

In the 2G/3G architecture, the service GPRS support node SGSN sends a message about the user terminal;

The message about the user terminal is parsed to obtain the current access type of the user terminal.

The method for updating a PCC rule according to claim 3, wherein the receiving, by the MME, the message about the user terminal further comprises: the MME receiving an access type change identifier of the user terminal, when When the access type change identifier indicates that the access type of the user terminal changes, the MME acquires the current access type of the user terminal and sends the access type; Before receiving the message about the user terminal sent by the SGSN, the method further includes: the SGSN receiving an access type change identifier of the user terminal, where the access type change identifier indicates that the access type of the user terminal changes The SGSN acquires the current access type of the user terminal and sends the same.

The method for updating a PCC rule according to claim 2, wherein the determining whether the current access type of the user terminal is the same as the locally recorded access type of the terminal includes:

And determining whether the current access type of the user terminal is the same as the locally recorded access type, according to the obtained current access type of the user terminal and the access type of the user terminal recorded locally.

The method for updating a PCC rule according to claim 1, wherein the sending the notification message carrying the current access type of the user terminal to the P-GW comprises:

Sending a bearer update message or a PCC rule update message to the P-GW, and notifying the P-GW of the current access type of the user terminal.

The method for updating a PCC rule according to claim 1 or 6, wherein the transmitting the notification message carrying the current access type of the user terminal to the P-GW further includes: the P-GW according to the user The current access type of the terminal acquires a corresponding PCC rule from the local or policy and charging decision function PCRF for use by the user terminal.

8. A service gateway S-GW, which is applied to a network in which a signaling mechanism is enabled, and is characterized in that:

An access type obtaining unit, configured to receive a message about the user terminal when the state of the user terminal changes to an active state, and acquire a current access type of the user terminal;

9. The S-GW according to claim 8, further comprising:

The access type determining unit is configured to determine whether the current access type of the user terminal acquired by the access type acquiring unit is the same as the locally recorded access type, and if not, notify the update message sending unit to perform PCC update.

10. A notification function entity, which is applied to a network in which a signaling mechanism is enabled, and is characterized in that:

The notification function entity according to claim 10, further comprising: an access type change identifier obtaining unit, configured to: when receiving the request sent by the user terminal enabled with the saving signaling mechanism, acquiring the request The change of the access type of the user terminal carried;

The access type notification determining unit is configured to notify the access type notification unit to notify the S-GW of the current access type of the user terminal when the acquired access type change identifier indicates that the terminal access type changes.

The notification function entity according to claim 10 or 11, wherein the notification function entity comprises:

MME in the LTE architecture; or SGSN in the 2G/3G architecture.

A terminal device, configured to enable access type reporting when the signaling mechanism is enabled, and the method includes:

The terminal access type judging unit is configured to determine whether the current access type is the same as the locally recorded access type when the system initiates a request to the network side after the handover;

The terminal access type notification unit is configured to notify the network side that the current access type of the terminal has changed by using the access type change identifier when the terminal access type determining unit determines that the access type is different.