CN111405636A - A strategy control method, device and system - Google Patents

Abstract

The present invention discloses a policy control method, device and system. The method includes: an MME obtains, according to a received request sent by a UE, whether the UE is the access state of the NSA; passing the access state of the UE through the SGW Send to the PGW, so that the PGW sends the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE. In the present invention, the MME can determine whether the access state of the UE is NSA according to the request sent by the UE, and send the determined access state of the UE to the PCRF through the SGW and PGW, so that the PCRF can accurately distinguish the users in the NSA state and the LTE state. , and then accurately perform differentiated policy control according to the actual access mode of the terminal.

Description

A strategy control method, device and system

technical field

The present invention relates to the technical field of core networks, and in particular, to a policy control method, device and system.

Background technique

3GPP standardization discusses a variety of 5G network deployment methods. According to the difference between wireless networks and core networks, they are divided into two categories: SA for independent networking and NSA for non-independent networking.

As a transitional solution for 5G networks, NSA can meet the high bandwidth requirements of 5G in advance, such as providing users with a maximum rate of 20Gbps downlink and 10Gbps uplink, while optimizing the imperfect wireless coverage in the initial 5G period and solving the problem of frequent interoperability. The NSA solutions defined by the 3GPP standard include Option3, Option4, and Option7, where Option3 is the UE dual-connection access to the EPC, and Option4 and Option7 are the UE dual-connection access to the 5GC. Before the deployment of 5GC, the NSA generally only refers to the Option3 solution. Specifically, the schematic diagram of the NSA network architecture can be shown in any one of Figure 1, Figure 2 and Figure 3. The core network in the early stage of 5G usually adopts the 4G core network EPC, and the new air interface base station gNB cannot work independently, only as the data pipeline of LTE. Therefore, the signaling interaction between the UE and the core network needs to be completed through LTE. In Figure 1, Figure 2 and Figure 3, the UE's dual-connection access to the EPC means accessing the EPC through LTEeNB and gNB. In Figure 1, the user plane interface data S1- Both U and control plane interface data S1-C communicate with the EPC through the LTE eNB. In Figures 2 and 3, the user plane interface data S1-U and the control plane interface data S1-C communicate with the EPC through the LTE eNB, and S1-U communicates with the EPC through the LTE eNB. It is possible to communicate with the EPC through the gNB.

In the current EPC network of operators such as China Mobile, PCRF (Policy and Charging Rules Function) can perform 2/3/4G real-time differentiated policy control for users, such as for different systems The specific implementation scheme is to distinguish 2/3/4G through the RAT (Radio Access Type, radio access type) Type field reported by PCEF (Policy and Charging Enforcement Function, policy and charging enforcement function). However, the new air interface base station gNB cannot work independently, and is only used as an enhancement of the LTE data pipeline. Therefore, after the NSA is deployed, the RAT type of the NSA user and the 4G user determined by the core network according to the signaling sent by the gNB are the same, such as E-UTRAN. At this time, PCRF cannot distinguish users in NSA state and 4G state according to the same RAT Type, so it cannot accurately perform differentiated policy control according to the actual access mode of the terminal for NSA or LTE.

SUMMARY OF THE INVENTION

The present invention provides a policy control method, device and system to solve the problem in the prior art that the differentiated policy control cannot be accurately performed according to the actual access mode of the terminal.

The present invention provides a strategy control method, which includes:

According to the received request sent by the UE, the MME obtains whether the UE is in the access state of the NSA;

The access state of the UE is sent to the PGW through the SGW, so that the PGW sends the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE.

Further, the sending the access state of the UE to the PGW through the SGW includes:

The access state of the UE and the value of the quality of service QoS in the range corresponding to the access state of the UE are sent to the PGW through the SGW.

Further, before the sending the access state of the UE to the PGW through the SGW, the method further includes:

According to the acquired device capability information of the MME, determine whether to allow the UE to access;

If yes, proceed to the next steps.

Further, the sending the access state of the UE to the PGW through the SGW includes:

Carry the access status of the UE in the Create Session Request and send it to the PGW through the SGW; or

carrying the access status of the UE in the Bearer Resource Command and sending it to the PGW through the SGW; or

The access state of the UE is carried in the Modify Bearer Request and sent to the PGW through the SGW.

Further, the carrying the access state of the UE in the Create Session Request and sending it to the PGW through the SGW includes:

Carry the access status of the UE in the added field of the PCO/ePCO information element in the Create Session Request and send it to the PGW through the SGW; or

The access state of the UE is carried in the newly added information element of the Create Session Request and sent to the PGW through the SGW.

Further, the carrying the access state of the UE in the Bearer Resource Command and sending it to the PGW through the SGW includes:

Send the access status of the UE to the PGW through the SGW in the added field of the PCO/ePCO information element in the Bearer Resource Command; or

The access state of the UE is carried in the newly added information element of the Bearer Resource Command and sent to the PGW through the SGW.

Further, the carrying the access status of the UE in the Modify Bearer Request and sending it to the PGW through the SGW includes:

Carry the access status of the UE in the Private Extension field in the Modify Bearer Request and send it to the PGW through the SGW; or

The access status of the UE is carried in a newly added field in the Modify Bearer Request and sent to the PGW through the SGW.

The present invention provides a strategy control method, which includes:

The SGW receives the information that carries the access state of the UE sent by the MME;

The access state of the UE is sent to the PGW, so that the PGW sends the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE.

Further, the sending the access status of the UE to the PGW includes:

carrying the access state of the UE in the Create Session Request and sending it to the PGW; or

Carry the access status of the UE in the Modify Bearer Request and send it to the PGW; or

The access state of the UE is carried in the Bearer Resource Command and sent to the PGW.

Further, carrying the access state of the UE in the Create Session Request and sending it to the PGW includes:

Send the access state of the UE to the PGW in the added field of the PCO/ePCO information element in the Create Session Request; or

The access state of the UE is carried in the newly added information element of the Create Session Request and sent to the PGW.

Further, carrying the access state of the UE in the Bearer Resource Command and sending it to the PGW includes:

Carry the access status of the UE in the added field of the PCO/ePCO information element in the Bearer Resource Command and send it to the PGW; or

The access state of the UE is carried in the newly added information element of the Bearer Resource Command and sent to the PGW.

Further, carrying the access status of the UE in the Modify Bearer Request and sending it to the PGW includes:

Carry the access status of the UE in the Private Extension field in the Modify Bearer Request and send it to the PGW; or

The access state of the UE is carried in a newly added field in the Modify Bearer Request and sent to the PGW.

The present invention provides a strategy control method, which includes:

The PGW receives the information that is sent by the SGW and carries the access state of the UE;

The access state of the UE is sent to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE.

Further, the sending the access status of the UE to the PCRF includes:

carrying the access status of the UE in the CCR-I message of the Gx interface and sending it to the PCRF; or

The access state of the UE is carried in the CCR-U message of the Gx interface and sent to the PCRF.

Further, carrying the access state information of the UE in the CCR-I message of the Gx interface and sending it to the PCRF includes:

Send the access status of the UE to the PCRF in the extended existing AVP field of the CCR-I message of the Gx interface; or

The access state of the UE is carried in the newly added AVP field in the CCR-I message of the Gx interface and sent to the PCRF.

Further, carrying the access state information of the UE in the CCR-U message of the Gx interface and sending it to the PCRF includes:

Send the access state of the UE to the PCRF in the extended existing AVP field of the CCR-U message of the Gx interface; or

The access state of the UE is carried in the newly added AVP field in the CCR-U message of the Gx interface and sent to the PCRF.

The present invention provides a strategy control method, which includes:

The PCRF receives the information that carries the access state of the UE sent by the PGW;

The UE is subject to policy control according to the access state of the UE.

The present invention provides a strategy control device, which is applied to MME, and the device includes:

an obtaining module, configured to obtain, according to the received request sent by the UE, whether the UE is the access state of the NSA;

A sending module, configured to send the access state of the UE to the PGW through the SGW, so that the PGW sends the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE .

The present invention provides a strategy control device, which is applied to the SGW, and the device includes:

a receiving module, configured to receive the information that carries the access state of the UE sent by the MME;

The sending module is configured to send the access state of the UE to the PGW, so that the PGW sends the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE.

The present invention provides a policy control device, which is applied to a PGW, and the device includes:

a receiving module, configured to receive the information carrying the access state of the UE sent by the SGW;

A sending module, configured to send the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE.

The present invention provides a strategy control device, which is applied to PCRF, and the device includes:

a receiving module, configured to receive the information carrying the access state of the UE sent by the PGW;

A control module, configured to perform policy control on the UE according to the access state of the UE.

The present invention provides a policy control system, the policy control system includes: MME, SGW, PGW, PCRF and UE; wherein,

The MME is configured to obtain, according to the received request sent by the UE, whether the UE is the access state of the non-independent networking NSA; and send the access state of the UE to the SGW;

The SGW is configured to receive the information carrying the access state of the UE sent by the MME; and send the access state of the UE to the PGW;

The PGW is configured to receive the information carrying the access state of the UE sent by the SGW; and send the access state of the UE to the PCRF;

The PCRF is configured to receive the information carrying the access state of the UE sent by the PGW; and perform policy control on the UE according to the access state of the UE.

Further, the MME is specifically configured to send the access state of the UE and the value of the quality of service QoS in the range corresponding to the access state of the UE to the SGW.

Further, the MME is further configured to determine whether to allow the UE to access according to the acquired device capability information of the MME; if yes, send the access status of the UE to the SGW.

Further, the MME is specifically configured to carry the access state of the UE in the CreateSession Request and send it to the SGW; or carry the access state of the UE in the BearerResource Command and send it to the SGW ; or carry the access status of the UE in the ModifyBearer Request and send it to the SGW.

Further, the MME is specifically configured to carry the access state of the UE in the added field of the PCO/ePCO information element in the Create Session Request and send it to the SGW; or carry the access state of the UE in the Create Session Request is sent to the SGW in the newly added cells.

Further, the MME is specifically configured to carry the access state of the UE in the added field of the PCO/ePCO information element in the Bearer ResourceCommand and send it to the SGW; or carry the access state of the UE in the BearerResource Command is sent to the SGW in the newly added cells.

Further, the MME is specifically configured to carry the access status of the UE in the Private Extension field in the Modify BearerRequest and send it to the SGW; or carry the access status of the UE in the newly added field in the ModifyBearer Request sent to the SGW.

Further, the SGW is specifically configured to carry the access state of the UE in the CreateSession Request and send it to the PGW; or carry the access state of the UE in the ModifyBearer Request and send it to the PGW ; or carry the access state of the UE in the BearerResource Command and send it to the PGW.

Further, the SGW is specifically configured to carry the access state of the UE in the added field of the PCO/ePCO information element in the Create Session Request and send it to the PGW; or carry the access state of the UE in the Create Session Request The newly added information element is sent to the PGW.

Further, the SGW is specifically configured to carry the access state of the UE in the added field of the PCO/ePCO information element in the Bearer ResourceCommand and send it to the PGW; or carry the access state of the UE in the BearerResource Command The newly added information element is sent to the PGW.

Further, the SGW is specifically configured to carry the access state of the UE in the Private Extension field in the Modify BearerRequest and send it to the PGW; or carry the access state of the UE in the newly added field in the ModifyBearer Request sent to the PGW.

Further, the PGW is specifically configured to carry the access state of the UE in the CCR-I message of the Gx interface and send it to the PCRF; or carry the access state of the UE in the CCR-U message of the Gx interface sent to PCRF.

Further, the PGW is specifically configured to carry the access status of the UE in the extended existing AVP field of the CCR-I message of the Gx interface and send it to the PCRF; or carry the access status of the UE The AVP field is added in the CCR-I message of the Gx interface and sent to the PCRF.

Further, the PGW is specifically configured to carry the access status of the UE in the extended existing AVP field of the CCR-U message of the Gx interface and send it to the PCRF; or carry the access status of the UE The AVP field is added in the CCR-U message of the Gx interface and sent to the PCRF.

The present invention provides a policy control method, device and system. The method includes: an MME obtains, according to a received request sent by a UE, whether the UE is an NSA access state; and passing the UE access state through an SGW Send to the PGW, so that the PGW sends the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE. In the present invention, the MME can determine whether the access state of the UE is NSA according to the request sent by the UE, and send the determined access state of the UE to the PCRF through the SGW and PGW, so that the PCRF can accurately distinguish the users in the NSA state and the LTE state. , and then accurately perform differentiated policy control according to the actual access mode of the terminal.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a schematic diagram of a network architecture provided by the prior art;

2 is a schematic diagram of a network architecture provided by the prior art;

3 is a schematic diagram of a network architecture provided by the prior art;

4 is a schematic structural diagram of a strategy control system according to Embodiment 1 of the present invention;

5 is a schematic diagram of a policy-controlled attachment process according to Embodiment 3 of the present invention;

6 is a schematic diagram of a policy-controlled update process according to Embodiment 3 of the present invention;

7 is a schematic diagram of a policy-controlled update process according to Embodiment 3 of the present invention;

FIG. 8 is a schematic diagram of a policy control process according to Embodiment 7 of the present invention;

9 is a schematic diagram of a policy control process according to Embodiment 8 of the present invention;

10 is a schematic diagram of a policy control process according to Embodiment 9 of the present invention;

11 is a schematic diagram of a policy control process according to Embodiment 9 of the present invention;

FIG. 12 is a schematic structural diagram of an MME according to Embodiment 10 of the present invention;

13 is a schematic structural diagram of an MME according to Embodiment 11 of the present invention;

FIG. 14 is a schematic structural diagram of an SGW according to Embodiment 13 of the present invention;

FIG. 15 is a schematic structural diagram of an SGW according to Embodiment 14 of the present invention;

FIG. 16 is a schematic structural diagram of a PGW according to Embodiment 16 of the present invention;

FIG. 17 is a schematic structural diagram of a PGW according to Embodiment 17 of the present invention;

18 is a schematic structural diagram of a PCRF provided in Embodiment 19 of the present invention;

19 is a schematic structural diagram of a PCRF provided in Embodiment 20 of the present invention;

FIG. 20 is a policy control apparatus applied to an MME provided by an embodiment of the present invention;

FIG. 21 is a policy control apparatus applied to an SGW according to an embodiment of the present invention;

FIG. 22 is a policy control apparatus applied to a PGW according to an embodiment of the present invention;

FIG. 23 is a strategy control apparatus applied to PCRF according to an embodiment of the present invention.

Detailed ways

In order to accurately perform differentiated policy control according to the actual access mode of the terminal, the embodiments of the present invention provide a policy control method, device and system.

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1:

FIG. 4 is a schematic structural diagram of a policy control system according to an embodiment of the present invention. The policy control system includes: MME (Mobility Management Entity, mobility management entity) 401, SGW (Serving GateWay, serving gateway) 402, PGW 403 (PDN) GateWay, PDN gateway), PCRF 404, and UE (User Equipment, user terminal) 405; wherein,

The MME401 is configured to obtain, according to the received request sent by the UE405, whether the UE405 is the access state of the non-independent networking NSA; and send the access state of the UE405 to the SGW402;

The SGW 402 is configured to receive the information carrying the access state of the UE 405 sent by the MME 401; and send the access state of the UE 405 to the PGW 403;

The PGW 403 is configured to receive the information carrying the access state of the UE 405 sent by the SGW 402; send the access state of the UE 405 to the PCRF 404;

The PCRF 404 is configured to receive the information carrying the access state of the UE 405 sent by the PGW 403 ; and perform policy control on the UE 405 according to the access state of the UE 405 .

In order to enable PCRF to accurately distinguish users in NSA state and LTE state, and then accurately perform differentiated policy control according to the actual access mode of the terminal, an embodiment of the present invention provides a policy control system, the policy control system includes MME, Serving gateway SGW, PDN gateway PGW, policy and charging rule functional unit PCRF and user terminal UE.

When the UE wants to perform the attach procedure or the update procedure, the UE will send the corresponding request to the MME, and the UE will also send its own capability information to the MME. The own capability information can be whether the UE supports DCNR (Dual connectivity with NR (with NR dual connectivity) capability, the capability information of itself can be carried in the request of the UE and sent to the MME, or it can be sent to the MME separately. Usually, in order to save the resources occupied by signaling transmission, the capability information of itself is carried in the MME. It is sent to the MME in the request of the UE.

If the capability information of the UE itself is carried in the UE, the MME may determine that the access state of the UE is NSA or LTE according to whether the received request sent by the UE carries the identifier of the capability information. If the capability information of the UE itself is sent to the MME separately, the MME may determine the capability information corresponding to the UE according to the request received from the UE, thereby determining the access state NSA or LTE of the UE.

In order to ensure the security of policy control, the policy control system provided by the embodiments of the present invention may further include an HSS (Home Subscriber Server, Home Subscriber Server), and the HSS includes information such as user identity and user physical location, so the MME receives the UE After sending the request, an Authentication Information Request (authentication request information) carrying user information can be sent to the HSS, the HSS authenticates the user information, and the EPS security vector containing the authentication result is carried in the Authentication Information Answer (authentication request information). If the MME determines that the UE is authenticated according to the EPS security vector, it determines that the UE is allowed to access the network, and then performs subsequent procedures, such as sending the access status of the UE to the SGW.

In the embodiment of the present invention, the MME sends the access state of the UE to the PCRF through the SGW and the PGW, so that the PCRF can accurately obtain whether the access state of the UE is LTE or NSA.

When the MME sends the access state of the UE to the SGW, it may use the signaling corresponding to the request sent by the UE to send the access state of the UE to the SGW.

After receiving the access state of the UE, the SGW may send the access state of the UE to the PGW by using signaling corresponding to the received signaling.

After receiving the access state of the UE, the PGW may send the access state of the UE to the PCRF by using signaling corresponding to the received signaling.

After the PCRF receives the access status of the UE, it performs policy control on the UE according to the access status of the UE. Specifically, the PCRF can issue an appropriate PCC (Policy and Charging Control, policy and charging control) to the UE based on the access status of the UE. charging control) policy.

After the PCRF issues the PCC policy, the PGW and the SGW can also send the response information to the MME, so that the MME knows that the UE has been able to successfully perform policy control and the like.

In the embodiment of the present invention, the MME may determine whether the access state of the UE is NSA according to the request sent by the UE, and send the determined access state of the UE to the PCRF through the SGW and PGW, so that the PCRF can accurately distinguish between the NSA state and the LTE state users, and then accurately perform differentiated policy control according to the actual access mode of the terminal.

Example 2:

On the basis of the above-mentioned embodiment, in the embodiment of the present invention, the MME is specifically configured to convert the access state of the UE and the QoS (Quality of Service, quality of service) of the range corresponding to the access state of the UE. value is sent to the SGW.

After the MME obtains the access state of the UE, it can determine the QoS value in the range corresponding to the access state of the UE according to the access state of the UE. Specifically, the MME can store the QoS value in the range corresponding to the access state and the access state. The corresponding relationship may be the corresponding relationship between the access state obtained by the MME in the HSS and the QoS value in the range corresponding to the access state, and the like.

After the MME determines the QoS value of the range corresponding to the access state of the UE, it can adjust the QoS value in the signaling to be sent to the QoS value of the range corresponding to the access state of the UE, that is, to the QoS value of the NSA standard range The value of QoS or the value of QoS adjusted to the LTE standard range.

The MME supports sending the actual access state of the UE and the supported maximum requested QoS information to the SGW and PGW, and carries "the actual access state of the UE and the supported maximum requested QoS information", including Create Session Request message, Bearer Resource Command message and Modify Bearer Request message.

Since in this embodiment of the present invention, the MME reports the access state of the UE and the QoS value of the range corresponding to the access state of the UE together, the PCRF can report the QoS value of the range corresponding to the access state of the UE and the access state of the UE according to the value of the QoS in the range corresponding to the access state of the UE. The access state of the UE can be more accurately controlled, so that the UE can be more accurately controlled.

Example 3:

On the basis of the above embodiments, in this embodiment of the present invention, the MME is further configured to determine whether to allow the UE to access according to the acquired device capability information of the MME; The access status is sent to the SGW.

In the policy control process, the MME also needs to consider its own device capability information. When it is determined that its own device capability information allows the UE to access, the MME sends the access status of the UE to the SGW, allowing subsequent UE attachment procedures or UE access. update process, etc.

The MME can obtain its own device capability information, which is configured locally on the MME. Specifically, the MME's own device capability information may include policies for restricting NR access to NSA UEs, HSS subscription information, etc. The device capability information of the MME may be set in the MME according to actual requirements and experience, and/or according to the hardware capability of the MME, and the device capability information of the MME itself is not limited here.

After the MME obtains its own device capability information, it can determine whether to allow the access of the UE that sends the access state of the UE. For example, the received access state of the UE is NSA, and the access NR of the NSA UE is combined with the MME's own capability information. Restriction policy, determine whether to allow the NSA UE to access, if so, determine to allow the UE to access, or combine the HSS subscription information in the MME's own capability information to determine whether the HSS has saved the UE's information, if so, It is determined that the UE is allowed to access. Since the device capability information of the MME itself is not limited, the process of judging whether to allow the UE to access according to the device capability information of the MME is also not limited here either.

The MME can receive the request sent by the UE. When the UE wants to perform the attach procedure or the update procedure, the UE will send the corresponding request to the MME. The 3GPP standard protocol stipulates that the UE sends the MME to the MME when the UE performs the attach procedure or the update procedure. The process of sending a request is therefore not limited in this embodiment of the present invention, and the UE only needs to follow the process specified in the 3GPP standard protocol when sending the request to the MME.

In order to facilitate the understanding of this solution by those skilled in the art, the following flow chart 5, flow chart 6 and flow chart 7 are taken as examples to briefly describe the flow of the UE sending a request to the MME, but the actual application is not limited to Figure 5 and Figure 6 As with the flow shown in FIG. 7 , this limitation is not made in other embodiments of the present solution, and the same description is not repeated in the following other embodiments.

When the UE wants to perform the attach procedure, the UE can send the Attach Request to the MME. During the attach procedure, the UE has not yet connected to the core network, so the MME can also update the location of the UE, which is generally stored in the HSS. The user's physical location information is available, so the process of updating the UE's location by the MME can be completed by communicating with the HSS. After receiving the Attach Request and completing the UE's location update, the MME obtains the UE's access status.

The attachment process of the user sending the Attach Request is shown in Figure 5. 1) The UE starts the attachment and initiates the attachment, and sends the Attach Request message to the MME through the base station eNodeB. The UE networkcapability (UE network capability) information element in the Attach Request message carries the DCNR identifier, indicating The UE supports the ability to access NR. 2) After the MME receives the AttachRequest message, it sends an Authentication Information Request to the HHS. The HSS responds to the Authentication Information Answer message, carrying the EPS security vector. 3) The MME initiates the Authentication/Security (authentication/security) process 4) The MME sends an Update Location Request message to the HSS to update the location, and the HSS responds to the Update Location Answer. The Update Location Answer message contains subscription data, and the subscription data carries the access restriction information of whether the UE can access the NR. to obtain the access status of whether the UE is an NSA.

When the UE wants to perform the update procedure, the UE can send a Bearer Resource Allocation Request (resource allocation request) to the MME, and the MME obtains the access status of the UE upon receiving the Bearer Resource Allocation Request.

The update process of the user sending TAU Request is shown in Figure 6. 1) The UE sends the TAURequest message to the MME through the base station eNodeB, and initiates the TAU process; 2) The MME sends the SGSN Context Request message to the GnGp SGSN, and the GnGp SGSN returns the SGSN Context Response message, carrying MM and PDP context, GnGp SGSN starts a timer, 3) MME sends Authentication Information Request to HSS, HSS responds with AuthenticationInformation Answer message, carrying EPS security vector, 4) MME initiates Authentication/Security process, 5) MME sends SGSN Context Acknowledge message To the GnGp SGSN, 6) the GnGp SGSN or RNC (RadioNetwork Controller, radio network controller)/BSS (base station subsystem) forwards the cached data to the eNodeB, and the MME obtains whether the UE is in the access state of the NSA.

When the UE wants to perform an update procedure, the UE may send a TAU Request (Tracking Area Update, tracking area update) to the MME, and the MME receives the TAU Request to obtain the access status of the UE.

The update process of sending Bearer Resource Allocation Request by the user is shown in Figure 7. 1) The UE sends a Bearer Resource Allocation Request message to the MME according to its own needs, carrying the TFA, QoS and PTI required by the service, and requests resource allocation, and the MME obtains the UE Whether it is the access state of the NSA.

Since the MME in the embodiment of the present invention considers its own device capability information and determines that its own device capability information allows the UE to access, it sends the access status of the UE to the SGW, allowing the subsequent UE attachment process or UE update process to ensure that Therefore, the PCRF can accurately control the UE according to the access state of the UE subsequently.

Example 4:

On the basis of the foregoing embodiments, in this embodiment of the present invention, the MME is specifically configured to carry the access state of the UE in a Create Session Request (create session request) and send it to the SGW; or send the UE to the SGW; The access state of the UE is carried in the Bearer Resource Command (bearer resource command) and sent to the SGW; or the access state of the UE is carried in the Modify Bearer Request (bearer modification request) and sent to the SGW.

The MME is specifically configured to carry the access status of the UE in the added field of the PCO/ePCO information element in the Create Session Request and send it to the SGW; or carry the access status of the UE in the new field of the Create Session Request. It is sent to the SGW in the enrichment element.

The MME is specifically configured to carry the access status of the UE in the added field of the PCO/ePCO information element in the Bearer Resource Command and send it to the SGW; or carry the access status of the UE in the new value of the Bearer ResourceCommand. It is sent to the SGW in the enrichment element.

The MME is specifically configured to carry the access status of the UE in the Private Extension field in the Modify Bearer Request and send it to the SGW; or carry the access status of the UE in the newly added field in the Modify BearerRequest and send it to SGW.

The MME can carry the access status of the UE in the Create Session Request and send it to the SGW. At this time, it can be considered that the position of the UE has moved, the connected MME has changed, and the connected SGW has also changed. The changed MME The access state of the UE is carried in the Create Session Request and sent to the SGW. The added field of the PCO/ePCO information element in the Create Session Request, or the newly added information element of the Create Session Request can carry the access state of the UE. The MME can The access status of the UE is carried in the Modify Bearer Request and sent to the SGW. At this time, it can be considered that the position of the UE has not moved, the MME connected to it has not been replaced, and the corresponding SGW has not been replaced, or the position of the UE has moved. However, the corresponding SGW has not changed. The MME carries the access status of the UE in the ModifyBearer Request, the Private Extension field in the Modify Bearer Request, or the newly added field in the ModifyBearer Request can carry the access status of the UE. The access state of the UE can be carried in the Bearer Resource Command and sent to the SGW. At this time, it can be considered that the UE has performed the update process. The MME carries the access state of the UE in the Bearer Resource Command and sends it to the SGW. The added field of the PCO/ePCO information element, or the newly added information element of the Bearer Resource Command may carry the access state of the UE.

The above example is also used for illustration. The attachment process of the user sending the Attach Request is shown in Figure 5. 5) The MME sends a Create Session Request message to the SGW to request the establishment of a default bearer. At this time, the MME will combine the device's own capabilities (including local configuration parameters). NSA UE access NR restriction policy and HSS subscription information) to determine whether to allow the UE to access, if so, add the UE's actual access status identifier (NSA or LTE) in the Create Session Request message, and also The request QoS is adjusted to the corresponding NSA or LTE standard for reporting. The specific implementation can be achieved by adding fields or new cells in the PCO/ePCO cells.

The update process of sending TAU Request by the user is shown in Fig. 6. 7) The MME sends a Create Session Request message to the Serving GW, that is, the SGW, to create a default bearer. At this time, the MME will combine the device's own capabilities (including the local configuration policy for NSA UE access NR restriction and HSS subscription information) to determine whether to allow the UE to access. Access state identification (NSA or LTE), and at the same time, the requested QoS can be adjusted to the corresponding NSA or LTE standard for reporting. The specific implementation can be achieved by adding fields or new cells in the PCO/ePCO cell.

The update process for the user to send the Bearer Resource Allocation Request is shown in Figure 7. 2) The MME sends the Bearer Resource Command message to the Serving GW. At this time, the MME will combine the device's own capabilities (including the local configuration of the NSA UE access NR restriction policy and HSS). subscription information) to determine whether the UE is allowed to access, if so, add the actual access status identifier (NSA or LTE) of the UE in the Bearer Resource Command message, and also adjust the requested QoS to the corresponding NSA or LTE Standard reporting can be implemented by adding fields or new information elements in the PCO/ePCO information element, and carrying information such as the TAD requested by the UE.

The S11 and S5/S8 interfaces transmit "the actual access state information of the UE" by extending the existing PCO/ePCO or RATType cells, or by defining new cells.

In this embodiment of the present invention, the MME carries the access state of the UE in the Create Session Request, Bearer Resource Command or Modify Bearer Request and sends it to the SGW, thereby ensuring that the PCRF can accurately control the UE according to the access state of the UE subsequently. .

Example 5:

On the basis of the foregoing embodiments, in this embodiment of the present invention, the SGW is specifically configured to carry the access state of the UE in the Create Session Request and send it to the PGW; or carry the access state of the UE It is sent to the PGW in the ModifyBearer Request; or the access status of the UE is carried in the Bearer Resource Command and sent to the PGW.

The SGW is specifically configured to carry the access status of the UE in the added field of the PCO/ePCO information element in the Create Session Request and send it to the PGW; or carry the access status of the UE in the new field of the Create Session Request. It is sent to the PGW in the enrichment element.

The SGW is specifically configured to carry the access status of the UE in the added field of the PCO/ePCO information element in the Bearer Resource Command and send it to the PGW; or carry the access status of the UE in the new value of the Bearer ResourceCommand. It is sent to the PGW in the enrichment element.

The SGW is specifically configured to carry the access state of the UE in the Private Extension field in the Modify Bearer Request and send it to the PGW; or carry the access state of the UE in the newly added field in the Modify Bearer Request and send it to PGW.

The SGW can carry the access state of the UE in the Create Session Request and send it to the PGW. The added field of the PCO/ePCO cell in the Create Session Request or the added cell of the Create Session Request can carry the access state of the UE, and the SGW can carry the access state of the UE. The access status of the UE is carried in the Modify Bearer Request and sent to the PGW. The Private Extension field in the Modify Bearer Request or the newly added field in the Modify Bearer Request can carry the access status of the UE, and the SGW can carry the access status of the UE. Sent to the PGW in the Bearer ResourceCommand, the added field of the PCO/ePCO cell in the Bearer Resource Command or the added cell of the BearerResource Command may carry the access information of the UE.

The above flow chart is also used as an example for description.

The attachment process of the user sending the Attach Request is shown in Figure 5. 6) The SGW sends a Create SessionRequest message to the PGW, and transmits the UE's actual access state identifier to the PGW.

The update process of sending TAU Request by the user is shown in Figure 6. 8) The SGW sends a Modify BearerRequest message to the PGW to update the IP, TEID, RAT and UE actual access status identifier (NSA or LTE) on the signaling plane and user plane. The specific implementation Private Extension fields or new fields can be used.

The update process of sending Bearer Resource Allocation Request by the user is shown in Figure 7. 3) The Serving GW sends the Bearer Resource Command message to the PDN GW, carrying the UE's actual access state identifier (NSAor LTE). Add a field or add a new cell in the .

The S11 and S5/S8 interfaces transmit "the actual access state information of the UE" by extending the existing PCO/ePCO or RATType cells, or by defining new cells.

In this embodiment of the present invention, the SGW carries the access state of the UE in the Create Session Request, Modify Bearer Request or Bearer Resource Command and sends it to the PGW, thereby ensuring that the PCRF can accurately control the UE according to the access state of the UE subsequently. .

Example 6:

On the basis of the above embodiments, in this embodiment of the present invention, the PGW is specifically configured to carry the access state information of the UE in the CCR-I message of the Gx interface and send it to the PCRF; or send the UE to the PCRF; The access state information is carried in the CCR-U message of the Gx interface and sent to the PCRF.

The PGW is specifically configured to carry the access state of the UE in the extended existing AVP field of the CCR-I message of the Gx interface and send it to the PCRF; or carry the access state of the UE in the Gx interface The new AVP field in the CCR-I message is sent to the PCRF.

The PGW is specifically configured to carry the access state of the UE in the extended existing AVP field of the CCR-U message of the Gx interface and send it to the PCRF; or carry the access state of the UE in the Gx interface The new AVP field in the CCR-U message is sent to the PCRF.

When the PGW receives the Create Session Request, the PGW carries the access status of the UE in the CCR-I message of the Gx interface and sends it to the PCRF. This process can be understood as the PGW initiates the Gx interface IP-CAN session establishment process, and the Gx interface CCR The access status of the UE can be carried in the extended existing AVP field or the newly added AVP field of the -I message, that is, the access status of the UE can be realized by adding a new AVP field or extending the value range of the existing AVP field. Status upload.

When the PGW receives the Modify Bearer Request, the PGW carries the access status of the UE in the CCR-U message of the Gx interface and sends it to the PCRF. This process can be understood as the PGW initiates the IP-CAN session modification process of the Gx interface, and the CCR of the Gx interface The access status of the UE can be carried in the extended existing AVP field or the newly added AVP field of the -U message, that is, the access state of the UE can be realized by adding a new AVP field or extending the value range of the existing AVP field. Status upload.

When the PGW receives the Bearer Resource Command, the PGW carries the access status of the UE in the CCR-U message of the Gx interface and sends it to the PCRF. This process can be understood as the PGW initiates the IP-CAN session modification process of the Gx interface, and the CCR of the Gx interface The access status of the UE can be carried in the extended existing AVP field or the newly added AVP field of the -U message, that is, the access state of the UE can be realized by adding a new AVP field or extending the value range of the existing AVP field. Status upload.

The above flow chart is also used as an example for description.

The attachment process of the user sending the Attach Request is shown in Figure 5. 7) The PGW initiates the IP-CAN session establishment process of the Gx interface. If the PGW receives the UE actual access status identifier sent by the SGW, it will be in the CCR-I message of the Gx interface. Send the actual access status identifier of the UE. The specific implementation can be solved by adding an AVP method or extending the existing AVP value range. After receiving the identifier, the PCRF can issue an appropriate PCC to the UE based on the actual access method of the UE. Strategy.

In this attach process, after the PCRF delivers the PCC policy, it can also send the response information to the MME through the PGW and the SGW. The response information is delivered as shown in Figure 5. 8) The PGW responds to the Create Session Response message to the MME. SGW, then SGW responds Create Session Response to MME, 9) MME sends Initial Context SetupRequest (initial context setup request) to eNodeB, carrying Attach Accept (attach information) message to indicate the completion of network side attachment, the message contains Activate Default EPS Bearer Context Request (activation of default EPS bearer context request) message, requiring the radio to establish a default bearer, 10) UE returns Attach Complete (attach complete), eNodeB returns Initial Context Setup Response (Initial Context Setup Response) message, the establishment of the default bearer is successful, 11) The MME sends a Modify Bearer Request message to the SGW to update the eNodeB address and TEID, and the SGW responds with a Modify Bearer Response (Modify Bearer Response) success message.

The update process of the user sending TAU Request is shown in Figure 6. 8) The P-GW initiates the IP-CAN session modification to the PCRF to notify the change information. If the PGW receives the UE's actual access status identifier sent by the SGW, the The actual access status identifier of the UE is sent in the CCR-U message. The specific implementation can be solved by adding an AVP method or extending the existing AVP value range. After receiving the identifier, the PCRF can use the actual access method of the UE. Issue an appropriate PCC policy.

In this update process, after the PCRF delivers the PCC policy, it can also send the response information to the MME through the PGW and SGW, and the response information is delivered as shown in Figure 6. 10) The PGW returns the Modify Bearer Response to the Serving GW, and the update is successful. 11) The SGW sends a Create Session Response message to the MME, and the bearer is created successfully; 12) The MME sends an Update Location Request message to the HSS to update the location; Cancel the location request) to the GnGp SGSN, otherwise the message is not sent to the SGSN. The GnGp SGSN waits for the previous timer to expire and deletes the user context. GnGp SGSN responds Cancel Location Acknowledge to HSS, 14) HSS responds to Update Location Answer, the message contains subscription data, 15) MME sends TAUAccept (tracking area acceptance) to respond to UE, and allocates A new GUTI (Globally Unique Temporary UEIdentity, Globally Unique Temporary UEIdentity), 16) The UE responds to the TAU Complete message.

The update flow of the Bearer Resource Allocation Request sent by the user is shown in Figure 7. 4) The PGW initiates an IP-CAN session modification to the PCRF to notify the change information. If the PGW receives the UE actual access status identifier sent by the SGW, the The actual access status identifier of the UE is sent in the CCR-U message. The specific implementation can be solved by adding an AVP method or extending the existing AVP value range. After receiving the identifier, the PCRF can use the actual access method of the UE. Issue an appropriate PCC policy.

In this update process, after the PCRF issues the PCC policy, it can also send the response information to the MME through the PGW and SGW. The response information is sent as shown in Figure 7. 5) The PGW sends a Create Bearer Request message to the SGW, requesting to establish a special There is a load. The message carries IMSI, Bearer QoS, LBI, PTI, etc. 6) SGW sends Create Bearer Request message to MME, 7) MME sends E-RAB Setup Request (E-RAB Setup Request) message to eNodeB, requesting to establish S1 bearer. The message carries the NAS message Activate Dedicated EPS Bearer Context Request. 8) The eNodeB sends the RRC Connection Reconfiguration (RRC Connection Reconfiguration) to the UE, requesting the establishment of the radio bearer of the bearer, and the UE responds to the RRC Connection Reconfiguration Complete (RRC Connection Reconfiguration Complete) . After the radio bearer is established successfully, the eNodeB transparently transmits the NAS to the UE. 9) After the eNodeB radio resource and S1 resource allocation is completed, it sends a successful E-RAB Setup Response message to the MME. 10) The UE sends Direct Transfer is sent to the eNodeB, which carries the message Activate Dedicated EPS Bearer Context Accept, and the dedicated bearer is established successfully. The eNodeB then transmits the NAS message to the MME through the Uplink NAS Transport message. 11) After the MME receives the successful response from the eNodeB and the UE, it sends a successful Create Bearer Response message to the SGW, carrying the IP and TEID of the eNdoeB. 12 ) SGW sends a successful Create Bearer Response message to PDN GW, 13) If dynamic PCC is deployed, PGW informs PCRF whether the PCC decision it requested has been executed.

The PGW supports reporting the actual access state information of the UE to the PCRF. After receiving the signaling message sent by the SGW, the PGW parses the actual access state of the UE, and reports the actual access state identifier to the PCRF through the Gx interface. After the PCRF receives the message reported by the PGW, it identifies the actual access mode (LTE or NSA) of the UE, and formulates a corresponding control policy for it according to the state. The UE provides a suitable differentiated control strategy.

The transmission of "the actual access state information of the UE" through the Gx interface can be implemented by extending the existing RAT-Type AVP, or by defining a new cell.

In this embodiment of the present invention, the PGW carries the access state of the UE in the CCR-I message of the Gx interface or the CCR-U message of the Gx interface and sends it to the PCRF, thereby ensuring that the PCRF can accurately identify the access state of the UE in the future. The UE performs policy control.

Example 7:

On the basis of the foregoing embodiments, FIG. 8 is a schematic diagram of a policy control process provided by an embodiment of the present invention, and the process includes the following steps:

S801: The MME obtains, according to the received request sent by the UE, whether the UE is in the access state of the NSA.

The policy control method provided by the embodiment of the present invention is applied to the MME.

S802: Send the access state of the UE to the PGW through the SGW, so that the PGW sends the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE.

Further, the sending the access status of the UE to the SGW includes:

The access state of the UE and the QoS value of the range corresponding to the access state of the UE are sent to the PGW through the SGW.

Further, before the sending the access state of the UE to the PGW through the SGW, the method further includes:

According to the acquired device capability information of the MME, determine whether to allow the UE to access;

If yes, proceed to the next steps.

Further, the sending the access state of the UE to the PGW through the SGW includes:

Carry the access status of the UE in the Create Session Request and send it to the PGW through the SGW; or

Carry the access status of the UE in the Bearer Resource Command and send it to the PGW through the SGW; or

The access state of the UE is carried in the Modify Bearer Request and sent to the PGW through the SGW.

Further, the carrying the access state of the UE in the Create Session Request and sending it to the PGW through the SGW includes:

Carry the access status of the UE in the added field of the PCO/ePCO information element in the Create Session Request and send it to the PGW through the SGW; or

The access state of the UE is carried in the newly added information element of the Create Session Request and sent to the PGW through the SGW.

Further, the carrying the access state of the UE in the Bearer Resource Command and sending it to the PGW through the SGW includes:

Send the access status of the UE to the PGW through the SGW in the added field of the PCO/ePCO information element in the Bearer Resource Command; or

The access state of the UE is carried in the newly added information element of the Bearer Resource Command and sent to the PGW through the SGW.

Further, the carrying the access status of the UE in the Modify Bearer Request and sending it to the PGW through the SGW includes:

Carry the access status of the UE in the Private Extension field in the Modify Bearer Request and send it to the PGW through the SGW; or

The access status of the UE is carried in a newly added field in the Modify Bearer Request and sent to the PGW through the SGW.

In the present invention, the MME can determine whether the access state of the UE is NSA according to the request sent by the UE, and send the determined access state of the UE to the PCRF through the SGW and PGW, so that the PCRF can accurately distinguish the users in the NSA state and the LTE state. , and then accurately perform differentiated policy control according to the actual access mode of the terminal.

Example 8:

On the basis of the foregoing embodiments, FIG. 9 is a schematic diagram of a policy control process provided by an embodiment of the present invention, and the process includes the following steps:

S901: The SGW receives the information that is sent by the MME and carries the access state of the UE.

The policy control method provided by the embodiment of the present invention is applied to the SGW.

S902: Send the access state of the UE to the PGW, so that the PGW sends the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE.

Further, the sending the access status of the UE to the PGW includes:

Carry the access status of the UE in the Create Session Request and send it to the PGW; or

Carry the access status of the UE in the Modify Bearer Request and send it to the PGW; or

The access state of the UE is carried in the Bearer Resource Command and sent to the PGW.

Further, carrying the access state of the UE in the Create Session Request and sending it to the PGW includes:

Send the access state of the UE to the PGW in the added field of the PCO/ePCO information element in the Create Session Request; or

The access state of the UE is carried in the newly added information element of the Create Session Request and sent to the PGW.

Further, carrying the access state of the UE in the Bearer Resource Command and sending it to the PGW includes:

Carry the access status of the UE in the added field of the PCO/ePCO information element in the Bearer Resource Command and send it to the PGW; or

The access state of the UE is carried in the newly added information element of the Bearer Resource Command and sent to the PGW.

Further, carrying the access status of the UE in the Modify Bearer Request and sending it to the PGW includes:

Carry the access status of the UE in the Private Extension field in the Modify Bearer Request and send it to the PGW; or

The access state of the UE is carried in a newly added field in the Modify Bearer Request and sent to the PGW.

In the present invention, the SGW sends the determined access state of the UE to the PCRF, so that the PCRF can accurately distinguish users in the NSA state and the 4G state, and then accurately perform differentiated policy control according to the actual access mode of the terminal.

Example 9:

Based on the foregoing embodiments, FIG. 10 is a schematic diagram of a policy control process provided by an embodiment of the present invention, and the process includes the following steps:

S1001: The PGW receives the information carrying the access state of the UE sent by the SGW.

The policy control method provided by the embodiment of the present invention is applied to the PGW.

S1002: Send the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE.

Further, the sending the access status of the UE to the PCRF includes:

carrying the access status of the UE in the CCR-I message of the Gx interface and sending it to the PCRF; or

The access state of the UE is carried in the CCR-U message of the Gx interface and sent to the PCRF.

Further, carrying the access state information of the UE in the CCR-I message of the Gx interface and sending it to the PCRF includes:

Send the access status of the UE to the PCRF in the extended existing AVP field of the CCR-I message of the Gx interface; or

The access state of the UE is carried in the newly added AVP field in the CCR-I message of the Gx interface and sent to the PCRF.

Further, carrying the access state information of the UE in the CCR-U message of the Gx interface and sending it to the PCRF includes:

Send the access state of the UE to the PCRF in the extended existing AVP field of the CCR-U message of the Gx interface; or

The access state of the UE is carried in the newly added AVP field in the CCR-U message of the Gx interface and sent to the PCRF.

FIG. 11 is a schematic diagram of a policy control process provided by an embodiment of the present invention, and the process includes the following steps:

S1101: The PCRF receives the information that is sent by the PGW and carries the access state of the user terminal UE.

The policy control method provided by the embodiment of the present invention is applied to PCRF.

S1102: Perform policy control on the UE according to the access state of the UE.

In the present invention, the PGW sends the determined access state of the UE to the PCRF, so that the PCRF can accurately distinguish users in the NSA state and the 4G state, and then accurately perform differentiated policy control according to the actual access mode of the terminal.

Example 10:

On the basis of the foregoing embodiments, an embodiment of the present invention further provides an MME 1200, as shown in FIG. 12, including: a processor 1201, a memory 1202, and a transceiver 1203;

The processor 1201 is configured to execute the program in the reading memory 1202, and perform the following processes: controlling the transceiver 1203 to obtain whether the UE is the access state of the NSA according to the received request sent by the UE; The access state of the UE is sent to the PGW through the SGW, so that the PGW sends the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE.

Based on the same inventive concept, an MME is also provided in the embodiment of the present invention. Since the principle of the above-mentioned MME to solve the problem is similar to the policy control method, the implementation of the above-mentioned MME can refer to the implementation of the method, and repeated details will not be repeated.

In FIG. 12, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1201 and various circuits of memory represented by memory 1202 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. Transceiver 1203 may be a number of elements, including a transmitter and a receiver, that provide means for communicating with various other devices over a transmission medium. The processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1202 may store data used by the processor 1201 in performing operations.

Optionally, the processor 1201 may be a CPU (central processor), an ASIC (Application Specific Integrated Circuit, application specific integrated circuit), an FPGA (Field-Programmable Gate Array, field programmable gate array) or a CPLD (Complex Programmable Logic Device, complex programmable logic devices).

The processor 1201 is specifically configured to control the transceiver 1203 to send the access state of the UE and the QoS value of the range corresponding to the access state of the UE to the PGW through the SGW.

The processor 1201 is further configured to determine whether to allow the UE to access according to the acquired device capability information of the MME; if yes, send the access status of the UE to the PGW through the SGW.

The processor 1201 is specifically configured to control the transceiver 1203 to carry the access state of the UE in the Create Session Request and send it to the PGW through the SGW; or carry the access state of the UE in the BearerResource Command to pass The SGW sends it to the PGW; or the access state of the UE is carried in the Modify Bearer Request and sent to the PGW through the SGW.

The processor 1201 is specifically configured to control the transceiver 1203 to carry the access status of the UE in the added field of the PCO/ePCO information element in the Create Session Request and send it to the PGW through the SGW; The access state of the UE is carried in the newly added information element of the Create Session Request and sent to the PGW through the SGW.

The processor 1201 is specifically configured to carry the access status of the UE in the added field of the PCO/ePCO information element in the Bearer ResourceCommand and send it to the PGW through the SGW; or carry the access status of the UE It is sent to the PGW through the SGW in the newly added information element of the Bearer Resource Command.

Example 11:

On the basis of the above embodiments, an embodiment of the present invention further provides an MME 1300, as shown in FIG. 13, including: a processor 1301, a communication interface 1302, a memory 1303, and a communication bus 1304, wherein the processor 1301 communicates with The interface 1302 and the memory 1303 communicate with each other through the communication bus 1304;

A computer program is stored in the memory 1303, and when the program is executed by the processor 1301, the processor 1301 is caused to execute any of the above-mentioned embodiments applied to the MME.

The communication bus mentioned in the above MME may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus or the like. The communication bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

The communication interface 1302 is used for communication between the above-mentioned MME and other devices.

The memory may include random access memory (Random Access Memory, RAM), and may also include non-volatile memory (Non-Volatile Memory, NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

The above-mentioned processor may be a general-purpose processor, including a central processing unit, a network processor (Network Processor, NP), etc.; it may also be a digital instruction processor (Digital Signal Processing, DSP), an application-specific integrated circuit, a field programmable gate array, or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

Example 12:

On the basis of the foregoing embodiments, embodiments of the present invention further provide a computer-readable storage medium, where a computer program executable by an MME is stored in the computer-readable storage medium, and when the program is stored in the MME When running on the MME, any one of the above-mentioned embodiments applied to the MME is implemented when the MME is executed.

The above-mentioned computer-readable storage medium can be any available medium or data storage device that can be accessed by the processor in the MME, including but not limited to magnetic storage such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MOs), etc., optical storages such as CDs, DVD, BD, HVD, etc., as well as semiconductor memories such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD), and the like.

Example 13:

On the basis of the foregoing embodiments, an embodiment of the present invention further provides an SGW 1400, as shown in FIG. 14, including: a processor 1401, a memory 1402, and a transceiver 1403;

The processor 1401 is configured to read the program in the memory 1402, and perform the following processes: controlling the transceiver 1403 to receive the information carrying the access state of the UE sent by the MME; sending the access state of the UE to the PGW , making the PGW send the access state of the UE to the PCRF, and making the PCRF perform policy control on the UE according to the access state of the UE.

Based on the same inventive concept, an SGW is also provided in the embodiment of the present invention. Since the principle of the above-mentioned SGW to solve the problem is similar to that of the policy control method, the implementation of the above-mentioned SGW can refer to the implementation of the method, and the repetition will not be repeated.

In FIG. 14, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1401 and various circuits of memory represented by memory 1402 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. Transceiver 1403 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium. The processor 1401 is responsible for managing the bus architecture and general processing, and the memory 1402 may store data used by the processor 1401 in performing operations.

Optionally, the processor 1401 may be a CPU (central processor), an ASIC (Application Specific Integrated Circuit, application specific integrated circuit), an FPGA (Field-Programmable Gate Array, field programmable gate array) or a CPLD (Complex Programmable Logic Device, complex programmable logic devices).

The processor 1401 is specifically configured to control the transceiver 1403 to carry the access state of the UE in the Create Session Request and send it to the PGW; or carry the access state of the UE in the Modify BearerRequest and send it to the PGW ; or carry the access state of the UE in the Bearer Resource Command and send it to the PGW.

The processor 1401 is specifically configured to control the transceiver 1403 to carry the access status of the UE in the added field of the PCO/ePCO information element in the Create Session Request and send it to the PGW; or send the access status of the UE to the PGW. The incoming state is carried in the newly added information element of the Create Session Request and sent to the PGW.

The processor 1401 is specifically configured to control the transceiver 1403 to carry the access status of the UE in the added field of the PCO/ePCO information element in the Bearer Resource Command and send it to the PGW; or send the access status of the UE to the PGW. The incoming state is carried in the newly added information element of the Bearer Resource Command and sent to the PGW.

The processor 1401 is specifically configured to control the transceiver 1403 to carry the access status of the UE in the Private Extension field in the Modify Bearer Request and send it to the PGW; or carry the access status of the UE in the Modify Bearer Request. It is sent to the PGW in the newly added field in the Bearer Request.

Example 14:

On the basis of the above embodiments, an embodiment of the present invention further provides an SGW 1500, as shown in FIG. 15, including: a processor 1501, a communication interface 1502, a memory 1503, and a communication bus 1504, wherein the processor 1501 communicates with The interface 1502 and the memory 1503 communicate with each other through the communication bus 1504;

A computer program is stored in the memory 1503, and when the program is executed by the processor 1501, the processor 1501 is made to execute any of the above-mentioned embodiments applied to the SGW.

The communication bus mentioned by the SGW may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus or the like. The communication bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

The communication interface 1502 is used for communication between the above-mentioned SGW and other devices.

The memory may include random access memory (Random Access Memory, RAM), and may also include non-volatile memory (Non-Volatile Memory, NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

The above-mentioned processor may be a general-purpose processor, including a central processing unit, a network processor (Network Processor, NP), etc.; it may also be a digital instruction processor (Digital Signal Processing, DSP), an application-specific integrated circuit, a field programmable gate array, or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

Example 15:

On the basis of the foregoing embodiments, the embodiments of the present invention further provide a computer storage-readable storage medium, where a computer program executable by the SGW is stored in the computer-readable storage medium, when the program is stored in the SGW When running on the SGW, the SGW implements any of the above-mentioned embodiments applied to the SGW during execution.

The above-mentioned computer-readable storage medium can be any available medium or data storage device that the processor in the SGW can access, including but not limited to magnetic storage such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc., optical storage such as CD, DVD, BD, HVD, etc., as well as semiconductor memories such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD), and the like.

Example 16:

On the basis of the foregoing embodiments, an embodiment of the present invention further provides a PGW 1600, as shown in FIG. 16, including: a processor 1601, a memory 1602, and a transceiver 1603;

The processor 1601 is configured to read the program in the memory 1602, and perform the following processes: controlling the transceiver 1603 to receive the information carrying the access state of the UE sent by the SGW; sending the access state of the UE to the PCRF , so that the PCRF performs policy control on the UE according to the access state of the UE.

Based on the same inventive concept, an embodiment of the present invention also provides a PGW. Since the principle of the above PGW for solving the problem is similar to the policy control method, the implementation of the above PGW can refer to the implementation of the method, and the repetition will not be repeated.

In FIG. 16, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1601 and various circuits of memory represented by memory 1602 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. Transceiver 1603 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium. The processor 1601 is responsible for managing the bus architecture and general processing, and the memory 1602 may store data used by the processor 1601 in performing operations.

Optionally, the processor 1601 may be a CPU (central processor), an ASIC (Application Specific Integrated Circuit, application specific integrated circuit), an FPGA (Field-Programmable Gate Array, field programmable gate array) or a CPLD (Complex Programmable Logic Device, complex programmable logic devices).

The processor 1601 is specifically configured to control the transceiver 1603 to carry the access state of the UE in the CCR-I message of the Gx interface and send it to the PCRF; or carry the access state of the UE in the Gx interface sent to PCRF in the CCR-U message.

The processor 1601 is specifically configured to control the transceiver 1603 to carry the access status of the UE in the extended existing AVP field of the CCR-I message of the Gx interface to send to the PCRF; or send the UE to the PCRF; The access status is carried in the newly added AVP field in the CCR-I message of the Gx interface and sent to the PCRF.

The processor 1601 is specifically configured to control the transceiver 1603 to carry the access state of the UE in the extended existing AVP field of the CCR-U message of the Gx interface to send to the PCRF; or send the UE to the PCRF; The access status is carried in the newly added AVP field in the CCR-U message of the Gx interface and sent to the PCRF.

Example 17:

On the basis of the above embodiments, an embodiment of the present invention further provides a PGW 1700, as shown in FIG. 17, including: a processor 1701, a communication interface 1702, a memory 1703, and a communication bus 1704, wherein the processor 1701 communicates with The interface 1702 and the memory 1703 communicate with each other through the communication bus 1704;

A computer program is stored in the memory 1703, and when the program is executed by the processor 1701, the processor 1701 is made to execute any of the above-mentioned embodiments applied to the PGW.

The communication bus mentioned by the above PGW may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus or the like. The communication bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

The communication interface 1702 is used for communication between the above-mentioned PGW and other devices.

The memory may include random access memory (Random Access Memory, RAM), and may also include non-volatile memory (Non-Volatile Memory, NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

The above-mentioned processor may be a general-purpose processor, including a central processing unit, a network processor (Network Processor, NP), etc.; it may also be a digital instruction processor (Digital Signal Processing, DSP), an application-specific integrated circuit, a field programmable gate array, or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

Example 18:

On the basis of the foregoing embodiments, embodiments of the present invention further provide a computer-readable storage medium, where a computer program executable by the PGW is stored in the computer-readable storage medium, and when the program is stored in the PGW When running on the PGW, the PGW implements any of the above-mentioned embodiments applied to the PGW during execution.

The above-mentioned computer-readable storage medium can be any available medium or data storage device that the processor in the PGW can access, including but not limited to magnetic storage such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc., optical storage such as CD, DVD, BD, HVD, etc., as well as semiconductor memories such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD), and the like.

Example 19:

On the basis of the foregoing embodiments, an embodiment of the present invention further provides a PCRF 1800, as shown in FIG. 18, including: a processor 1801, a memory 1802, and a transceiver 1803;

The processor 1801 is configured to read the program in the memory 1802, and perform the following processes: control the transceiver 1803 to receive the information that carries the access state of the user terminal UE sent by the PGW; The UE performs policy control.

Based on the same inventive concept, an embodiment of the present invention also provides a PCRF. Since the principle of the PCRF to solve the problem is similar to the policy control method, the implementation of the PCRF can refer to the implementation of the method, and the repetition will not be repeated.

In FIG. 18, the bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 1801 and various circuits of memory represented by memory 1802 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. Transceiver 1803 may be a number of elements, including a transmitter and a receiver, that provide means for communicating with various other devices over a transmission medium. The processor 1801 is responsible for managing the bus architecture and general processing, and the memory 1802 may store data used by the processor 1801 in performing operations.

Example 20:

On the basis of the above embodiments, an embodiment of the present invention further provides a PCRF 1900, as shown in FIG. 19, including: a processor 1901, a communication interface 1902, a memory 1903, and a communication bus 1904, wherein the processor 1901 communicates with The interface 1902, the memory 1903 communicate with each other through the communication bus 1904;

A computer program is stored in the memory 1903, and when the program is executed by the processor 1901, the processor 1901 is caused to execute any of the above-mentioned embodiments applied to PCRF.

The communication bus mentioned by the above PCRF may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus or the like. The communication bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

The communication interface 1902 is used for communication between the above-mentioned PCRF and other devices.

The memory may include random access memory (Random Access Memory, RAM), and may also include non-volatile memory (Non-Volatile Memory, NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

The above-mentioned processor may be a general-purpose processor, including a central processing unit, a network processor (Network Processor, NP), etc.; it may also be a digital instruction processor (Digital Signal Processing, DSP), an application-specific integrated circuit, a field programmable gate array, or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

Example 21:

On the basis of the foregoing embodiments, embodiments of the present invention further provide a computer-readable storage medium, where a computer program executable by PCRF is stored in the computer-readable storage medium, when the program is stored in the PCRF When running on the above, the PCRF is executed to implement any of the above-mentioned embodiments applied to the PCRF.

The above-mentioned computer-readable storage medium can be any available medium or data storage device that can be accessed by a processor in the PCRF, including but not limited to magnetic storage such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MOs), etc., optical storages such as CDs, DVD, BD, HVD, etc., as well as semiconductor memories such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid state disk (SSD), and the like.

FIG. 20 is a policy control apparatus provided by an embodiment of the present invention, applied to an MME, and the apparatus includes:

an obtaining module 2001, configured to obtain, according to the received request sent by the UE, whether the UE is in the access state of the NSA;

A sending module 2002, configured to send the access state of the UE to the PGW through the SGW, so that the PGW sends the access state of the UE to the PCRF, so that the PCRF implements a policy on the UE according to the access state of the UE control.

The sending module is specifically configured to send the access state of the UE and the QoS value of the range corresponding to the access state of the UE to the PGW through the SGW.

The sending module is further configured to determine whether to allow the UE to access according to the acquired device capability information of the MME; if yes, send the access status of the UE to the PGW through the SGW.

The sending module is specifically configured to carry the access state of the UE in the Create Session Request and send it to the PGW through the SGW; or carry the access state of the UE in the Bearer Resource Command and send it to the PGW through the SGW; or The access state of the UE is carried in the Modify Bearer Request and sent to the PGW through the SGW.

The sending module is specifically configured to carry the access state of the UE in the added field of the PCO/ePCO information element in the Create Session Request and send it to the PGW through the SGW; or carry the access state of the UE in the Create Session The newly added information element of the Request is sent to the PGW through the SGW.

The sending module is specifically configured to carry the access status of the UE in the added field of the PCO/ePCO information element in the Bearer Resource Command and send it to the PGW through the SGW; or carry the access status of the UE in the BearerResource Command. The newly added information element of the Command is sent to the PGW through the SGW.

The sending module is specifically configured to carry the access state of the UE in the Private Extension field in the Modify Bearer Request and send it to the PGW through the SGW; or carry the access state of the UE in the new addition in the Modify Bearer Request. The field is sent to the PGW through the SGW.

FIG. 21 is a policy control apparatus provided by an embodiment of the present invention, applied to an SGW, and the apparatus includes:

A receiving module 2101, configured to receive the information that is sent by the MME and that carries the access state of the UE;

The sending module 2102 is configured to send the access state of the UE to the PGW, so that the PGW sends the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE.

The sending module is specifically configured to carry the access state of the UE in the Create Session Request and send it to the PGW; or carry the access state of the UE in the Modify Bearer Request and send it to the PGW; or send the UE to the PGW The access status is carried in the Bearer Resource Command and sent to the PGW.

The sending module is specifically configured to carry the access state of the UE in the added field of the PCO/ePCO information element in the Create Session Request and send it to the PGW; or carry the access state of the UE in the Create Session It is sent to the PGW in the newly added information element of the Request.

The sending module is specifically configured to carry the access status of the UE in the added field of the PCO/ePCO information element in the Bearer Resource Command and send it to the PGW; or carry the access status of the UE in the Bearer Resource Command. It is sent to the PGW in the newly added cell.

The sending module is specifically configured to carry the access state of the UE in the Private Extension field in the Modify Bearer Request and send it to the PGW; or carry the access state of the UE in the newly added field in the Modify Bearer Request sent to the PGW.

FIG. 22 is a policy control apparatus provided by an embodiment of the present invention, applied to a PGW, and the apparatus includes:

A receiving module 2201, configured to receive the information carrying the access state of the UE sent by the SGW;

The sending module 2202 is configured to send the access state of the UE to the PCRF, so that the PCRF performs policy control on the UE according to the access state of the UE.

The sending module is specifically configured to carry the access state information of the UE in the CCR-I message of the Gx interface and send it to the PCRF; or carry the access state information of the UE in the CCR-U message of the Gx interface sent to PCRF.

The sending module is specifically configured to carry the access state of the UE in the extended existing AVP field of the CCR-I message of the Gx interface and send it to the PCRF; or carry the access state of the UE in the Gx The AVP field is added in the CCR-I message of the interface and sent to the PCRF.

The sending module is specifically configured to carry the access state of the UE in the extended existing AVP field of the CCR-U message of the Gx interface and send it to the PCRF; or carry the access state of the UE in the Gx The AVP field is added in the CCR-U message of the interface and sent to the PCRF.

FIG. 23 is a policy control apparatus provided by an embodiment of the present invention, applied to PCRF, and the apparatus includes:

A receiving module 2301, configured to receive the information carrying the access state of the user terminal UE sent by the PDN gateway PGW;

The control module 2302 is configured to perform policy control on the UE according to the access state of the UE.

As for the method/apparatus embodiment, since it is basically similar to the system embodiment, the description is relatively simple, and reference may be made to some descriptions of the system embodiment for related parts.

It should be noted that, in this document, relational terms such as first and second, etc. are only used to distinguish one entity or one operation from another entity or another operation, and do not necessarily require or imply these entities Or there is any such actual relationship or order between operations.

As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

While the preferred embodiments of the present application have been described, additional changes and modifications to these embodiments may occur to those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be construed to include the preferred embodiment and all changes and modifications that fall within the scope of this application.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (35)

1. A method of policy control, the method comprising:

a mobile management entity MME acquires whether the UE is in an access state of a non-independent network NSA or not according to a received request sent by a user terminal UE;

and sending the access state of the UE to a PDN gateway PGW through a service gateway SGW, so that the PGW sends the access state of the UE to a policy and charging rule function unit PCRF, and the PCRF carries out policy control on the UE according to the access state of the UE.

2. The method of claim 1, wherein the sending the access status of the UE to the PGW via the SGW comprises:

and sending the access state of the UE and the QoS value in the range corresponding to the access state of the UE to a PGW through an SGW.

3. The method of claim 1 or 2, wherein before sending the access status of the UE to the PGW through the SGW, the method further comprises:

judging whether the UE is allowed to be accessed according to the acquired equipment capability information of the MME;

if yes, the subsequent steps are carried out.

4. The method of claim 1 or 2, wherein the sending the access status of the UE to the PGW via the SGW comprises:

carrying the access state of the UE in a Request Create Session Request and sending the access state to a PGW through an SGW; or

Carrying the access state of the UE in a Bearer Resource Command (Bearer Resource Command) and sending the Bearer Resource Command to a PGW (packet data gateway) through the SGW; or

And carrying the access state of the UE in a modification Bearer Request Modify Bearer Request, and sending the modification Bearer Request to a PGW through the SGW.

5. The method of claim 4, wherein the sending the access status of the UE to the PGW via the SGW while being carried in a CreateSession Request comprises:

carrying the access state of the UE in an increasing field of a PCO/ePCO cell in a Create Session Request, and sending the access state of the UE to a PGW through an SGW; or

And carrying the access state of the UE in a newly added cell of a Create Session Request, and sending the access state of the UE to a PGW through an SGW.

6. The method of claim 4, wherein the sending the access status of the UE to the PGW via the SGW in a BeareResource Command comprises:

carrying the access state of the UE in an increasing field of a PCO/ePCO cell in a Bearer Resource Command and sending the increasing field to a PGW through an SGW; or

And carrying the access state of the UE in a newly added cell of the Bearer Resource Command and sending the access state to the PGW through the SGW.

7. The method of claim 4, wherein the sending the access status of the UE to the PGW via the SGW in a ModifyBearer Request comprises:

carrying the access state of the UE in a Private Extension field in a modified Bearer Request, and sending the access state to a PGW through an SGW; or

And carrying the access state of the UE in a newly added field in a modified Bearer Request, and sending the access state to a PGW through an SGW.

8. A method of policy control, the method comprising:

a Service Gateway (SGW) receives information carrying the access state of User Equipment (UE) sent by a Mobility Management Entity (MME);

and sending the access state of the UE to a PDN gateway PGW, enabling the PGW to send the access state of the UE to a Policy and Charging Rule Function (PCRF), and enabling the PCRF to perform policy control on the UE according to the access state of the UE.

9. The method of claim 8, wherein the sending the access status of the UE to the PGW comprises:

carrying the access state of the UE in a Request Create Session Request to send to a PGW; or

Carrying the access state of the UE in a modification Bearer Request Modify Bearer Request and sending the modification Bearer Request to a PGW; or

And carrying the access state of the UE in a Bearer Resource Command and sending the Bearer Resource Command to the PGW.

10. The method of claim 9, wherein the sending the access status of the UE to the PGW carried in a createsessionsest comprises:

carrying the access state of the UE in an increasing field of a PCO/ePCO cell in a Create Session Request and sending the access state of the UE to a PGW; or

And carrying the access state of the UE in a newly-added cell of a Create Session Request, and sending the access state of the UE to a PGW.

11. The method of claim 9, wherein the sending the access status of the UE to the PGW carried in a BearerResource Command comprises:

carrying the access state of the UE in an increasing field of a PCO/ePCO cell in a Bearer Resource Command and sending the increasing field to a PGW; or

And carrying the access state of the UE in a newly added cell of a Bearer Resource Command and sending the cell to a PGW.

12. The method of claim 9, wherein the sending the access status of the UE to the PGW carried in a modifyberer Request comprises:

carrying the access state of the UE in a Private Extension field in a modified Bearer Request, and sending the access state of the UE to a PGW; or

And carrying the access state of the UE in a newly added field in a modified Bearer Request, and sending the access state of the UE to a PGW.

13. A method of policy control, the method comprising:

a PDN gateway PGW receives information carrying a user terminal UE access state sent by a service gateway SGW;

and sending the access state of the UE to a Policy and Charging Rule Function (PCRF) unit, so that the PCRF carries out policy control on the UE according to the access state of the UE.

14. The method of claim 13, wherein the sending the access status of the UE to a PCRF comprises:

carrying the access state of the UE in a CCR-I message of a Gx interface and sending the CCR-I message to the PCRF; or

And carrying the access state of the UE in a CCR-U message of a Gx interface and sending the CCR-U message to the PCRF.

15. The method of claim 14, wherein the carrying the access status information of the UE in a CCR-I message of a Gx interface to send to a PCRF comprises:

carrying the access state of the UE in the expanded existing AVP field of the CCR-I message of the Gx interface and sending the extended existing AVP field to the PCRF; or

And carrying the access state of the UE in a newly added AVP field in a CCR-I message of a Gx interface and sending the access state to the PCRF.

16. The method of claim 14, wherein the carrying the access status information of the UE in a CCR-U message of a Gx interface to send to a PCRF comprises:

carrying the access state of the UE in the expanded existing AVP field of the CCR-U message of the Gx interface and sending the extended existing AVP field to the PCRF; or

And carrying the access state of the UE in a newly added AVP field in a CCR-U message of a Gx interface and sending the access state to the PCRF.

17. A method of policy control, the method comprising:

a Policy and Charging Rule Function (PCRF) unit receives information carrying a user terminal (UE) access state sent by a Packet Data Network (PDN) gateway (PGW);

and performing policy control on the UE according to the access state of the UE.

18. A policy control device applied to a Mobility Management Entity (MME), the device comprising:

the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring whether the UE is in an access state of a non-independent network NSA according to a received request sent by the user terminal UE;

and the sending module is used for sending the access state of the UE to a PDN gateway PGW through a service gateway SGW, so that the PGW sends the access state of the UE to a policy and charging rule function unit PCRF, and the PCRF carries out policy control on the UE according to the access state of the UE.

19. A policy control device applied to a serving gateway SGW, the policy control device comprising:

the receiving module is used for receiving the information carrying the access state of the user terminal UE sent by the mobile management entity MME;

and the sending module is used for sending the access state of the UE to a PDN gateway PGW, so that the PGW sends the access state of the UE to a policy and charging rule function unit (PCRF), and the PCRF carries out policy control on the UE according to the access state of the UE.

20. A policy control device applied to a PDN gateway PGW, the device comprising:

the receiving module is used for receiving information carrying the access state of the user terminal UE, which is sent by a service gateway SGW;

and the sending module is used for sending the access state of the UE to a Policy and Charging Rule Function (PCRF) unit so that the PCRF carries out policy control on the UE according to the access state of the UE.

21. A policy control device, applied to a policy and charging rules function PCRF, the device comprising:

the system comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving information which is sent by a PDN gateway PGW and carries the access state of user equipment UE;

and the control module is used for carrying out strategy control on the UE according to the access state of the UE.

22. A policy control system, characterized in that the policy control system comprises: a mobile management entity MME, a service gateway SGW, a PDN gateway PGW, a policy and charging rule functional unit PCRF and a user terminal UE; wherein,

the MME is used for acquiring whether the UE is in an access state of a non-independent network NSA or not according to a received request sent by the UE; sending the access state of the UE to an SGW;

the SGW is used for receiving information which is sent by the MME and carries the UE access state; sending the access state of the UE to a PGW;

the PGW is used for receiving information carrying UE access state sent by the SGW; sending the access state of the UE to a PCRF;

the PCRF is used for receiving information which is sent by the PGW and carries the UE access state; and performing policy control on the UE according to the access state of the UE.

23. The system according to claim 22, wherein the MME is configured to send the SGW the access status of the UE and the values of the quality of service QoS corresponding to the range of the access status of the UE.

24. The system according to claim 22 or 23, wherein the MME is further configured to determine whether to allow the UE to access according to the obtained device capability information of the MME; and if so, sending the access state of the UE to the SGW.

25. The system according to claim 22 or 23, wherein the MME is specifically configured to send the SGW with the access status of the UE carried in a Create Session Request; or carrying the access state of the UE in a Bearer Resource Command and sending the Bearer Resource Command to the SGW; or carrying the access state of the UE in a modification Bearer Request Modify Bearer Request and sending the modification Bearer Request to the SGW.

26. The system of claim 25, wherein the MME is specifically configured to send the access status of the UE to the SGW in an add field of a PCO/ePCO cell carried in a Create Session Request; or carrying the access state of the UE in a newly-added cell of a Create Session Request and sending the access state of the UE to the SGW.

27. The system according to claim 25, wherein the MME is specifically configured to send the access status of the UE to the SGW in an add field of a PCO/ePCO cell carried in a Bearer Resource Command; or carrying the access state of the UE in a newly added cell of the Bearer Resource Command and sending the cell to the SGW.

28. The system according to claim 25, wherein the MME is specifically configured to send the access status of the UE to the SGW in a Private Extension field carried in a modified Bearer Request; or carrying the access state of the UE in a newly-added field in a Modify Bearer Request, and sending the access state to the SGW.

29. The system of claim 22, wherein the SGW is specifically configured to send the access state of the UE to the PGW while carrying the access state in a Create Session Request; or carrying the access state of the UE in a modification Bearer Request Modify Bearer Request and sending the modification Bearer Request to the PGW; or carrying the access state of the UE in a Bearer Resource Command and sending the Bearer Resource Command to the PGW.

30. The system of claim 29, wherein the SGW is specifically configured to send the access status of the UE to the PGW in an add field of a PCO/ePCO cell carried in a Create Session Request; or the access state of the UE is carried in a newly-added cell of a Create Session Request and sent to the PGW.

31. The system of claim 29, wherein the SGW is specifically configured to send the access status of the UE to the PGW in an add field of a PCO/ePCO cell carried in a Bearer Resource Command; or carrying the access state of the UE in a newly added cell of the Bearer Resource Command and sending the cell to the PGW.

32. The system according to claim 29, wherein the SGW is specifically configured to send the access status of the UE to the PGW by carrying it in a Private Extension field in a modified Bearer Request; or carrying the access state of the UE in a newly-added field in a Modify Bearer Request, and sending the access state of the UE to the PGW.

33. The system of claim 22, wherein the PGW is specifically configured to carry the access status of the UE in a CCR-I message of a Gx interface and send the CCR-I message to the PCRF; or carrying the access state of the UE in a CCR-U message of a Gx interface and sending the CCR-U message to the PCRF.

34. The system of claim 33, wherein the PGW is specifically configured to send the access status of the UE to the PCRF, carried in an extended existing AVP field of a CCR-I message of a Gx interface; or carrying the access state of the UE in a newly added AVP field in a CCR-I message of a Gx interface and sending the access state to the PCRF.

35. The system of claim 33, wherein the PGW is specifically configured to send the access status of the UE to the PCRF, carried in an extended existing AVP field of a CCR-U message of a Gx interface; or carrying the access state of the UE in a newly added AVP field in a CCR-U message of a Gx interface and sending the access state to the PCRF.

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