CN111405636A

CN111405636A - Policy control method, device and system

Info

Publication number: CN111405636A
Application number: CN201910002786.3A
Authority: CN
Inventors: 张翀; 周欣
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-01-02
Filing date: 2019-01-02
Publication date: 2020-07-10
Anticipated expiration: 2039-01-02
Also published as: CN111405636B

Abstract

The invention discloses a policy control method, a device and a system, wherein the method comprises the steps that an MME acquires whether UE is in an NSA (non-switched serving access) state according to a received request sent by the UE, the access state of the UE is sent to a PGW (packet data gateway) through the SGW, the PGW sends the access state of the UE to a PCRF (policy and charging rules function), and the PCRF carries out policy control on the UE according to the access state of the UE.

Description

Policy 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, apparatus, and system.

Background

Various 5G network deployment modes are discussed in 3GPP standardization, and are classified into two categories according to the difference between a radio network and a core network: independent networking deployments SA and dependent networking deployments NSA.

The NSA is a transition scheme of a 5G network, and can meet high bandwidth requirements of 5G in advance, such as providing maximum rates of 20Gbps downlink and 10Gbps uplink for a user, and simultaneously can optimize initial 5G wireless coverage imperfection, and solve a problem of frequent interoperation.a NSA scheme defined by a 3GPP standard includes Option3, Option4, and Option7, where Option3 is UE dual-connection access EPC, Option4 and Option7 are UE dual-connection access 5GC, and before 5GC deployment, the NSA refers to only Option3 scheme.

In an EPC existing network of an operator, taking china mobile as an example, PCRF (Policy and Charging rules function) may perform 2/3/4G real-time differentiated Policy control on a user, for example, if a super-suite speed limit is implemented for different systems, a specific implementation scheme is to distinguish 2/3/4G through a Radio Access Type (RAT) Type field reported by PCEF (Policy and Charging enforcement function), but a new air interface base station gNB cannot work independently, and is only used as an enhancement of a L TE data pipe, so after NSA is deployed, RAT types of an NSA user and a 4G user determined by a core network according to signaling sent by the gNB are the same, if both are E-UTRAN, at this time, PCRF cannot distinguish between users in an NSA state and a 4G state according to the same RAT Type, and thus cannot accurately perform differentiated Policy control for an NSA or L according to an actual Access mode of a terminal.

Disclosure of Invention

The invention provides a policy control method, a policy control device and a policy control system, which are used for solving the problem that differential policy control cannot be accurately carried out according to the actual access mode of a terminal in the prior art.

The invention provides a strategy control method, which comprises the following steps:

the MME acquires whether the UE is in an NSA access state or not according to the received request sent by the UE;

and sending the access state of the UE to a PGW through an SGW, so that the PGW sends the access state of the UE to a PCRF, and 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 through the SGW includes:

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.

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

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.

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.

Further, the sending, by the SGW, the access state of the UE carried in the Create Session Request to the PGW includes:

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.

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

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.

Further, the sending, by the SGW, the access status of the UE carried in the Modify Bearer Request to the PGW includes:

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.

the SGW receives information which is sent by the MME and carries the UE access state;

and sending the access state of the UE to the PGW, so that the PGW sends the access state of the UE to the PCRF, and 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 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.

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

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.

Further, the sending the access status of the UE carried in the Bearer Resource Command to the PGW includes:

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.

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

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.

the PGW receives information carrying the UE access state sent by the SGW;

and sending the access state of the UE to a PCRF (policy and charging rules function), 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 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.

Further, the sending the access status information of the UE to the PCRF by carrying the access status information in a CCR-I message of the Gx interface includes:

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.

Further, the sending the access status information of the UE to the PCRF by carrying the access status information in a CCR-U message of the Gx interface includes:

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.

the PCRF receives information carrying the UE access state sent by a PGW;

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

The invention provides a policy control device, which is applied to MME and comprises:

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

and the sending module is used for sending 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, and the PCRF performs policy control on the UE according to the access state of the UE.

The invention provides a policy control device, which is applied to SGW and comprises:

the receiving module is used for receiving the information carrying the UE access state sent by the MME;

and the sending module is used for sending the access state of the UE to the PGW, so that the PGW sends the access state of the UE to the PCRF, and the PCRF performs policy control on the UE according to the access state of the UE.

The invention provides a strategy control device, which is applied to PGW and comprises:

the receiving module is used for receiving the information carrying the UE access state sent by the SGW;

and the sending module is used for sending the access state of the UE to the PCRF so that the PCRF carries out policy control on the UE according to the access state of the UE.

The invention provides a policy control device, which is applied to PCRF and comprises:

the receiving module is used for receiving information which is sent by the PGW and carries the UE access state;

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

The invention provides a policy control system, comprising: MME, SGW, PGW, PCRF and UE; wherein the content of the first and second substances,

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.

Further, the MME is specifically configured to send the access state of the UE and a value of quality of service QoS in a 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 obtained device capability information of the MME; and if so, sending the access state of the UE to the SGW.

Further, the MME is specifically configured to send the access state of the UE to the SGW while carrying the access state in a create session Request creation 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 modified bearer Request ModifyBearer Request and sending the modified bearer Request ModifyBearer Request to the SGW.

Further, the MME is specifically configured to send the access state of the UE to the SGW in an added field of a PCO/ePCO cell carried in the Create session request; or the access state of the UE is carried in a newly-added cell of a createsessionsRequest and is sent to the SGW.

Further, the MME is specifically configured to send the access state of the UE to the SGW in an added field of a PCO/ePCO cell carried in the Bearer resource command; or carrying the access state of the UE in a newly added cell of the BearerResourceCommand and sending the cell to the SGW.

Further, the MME is specifically configured to carry the access state of the UE in a Private Extension field in a modified BearerRequest and send the access state to the SGW; or carrying the access state of the UE in a newly-added field in the ModifyBearer Request, and sending the access state to the SGW.

Further, the SGW is specifically configured to send the access state of the UE to the PGW, carrying the access state in a create session Request creation Request; or carrying the access state of the UE in a modified bearer Request ModifyBearer Request and sending the modified bearer Request to the PGW; or carrying the access state of the UE in a bearer resource Command BeareResource Command and sending the access state of the UE to the PGW.

Further, the SGW is specifically configured to send the access state of the UE to the PGW in an addition field of a PCO/ePCO cell carried in a Create SessionRequest; or the access state of the UE is carried in a newly-added cell of a CreateSessionRequest and is sent to the PGW.

Further, the SGW is specifically configured to send the access state of the UE to the PGW in an added field of a PCO/ePCO cell carried in the Bearer resource command; or carrying the access state of the UE in a newly added cell of the BearerResourceCommand and sending the cell to the PGW.

Further, the SGW is specifically configured to send the access status of the UE to the PGW in a Private Extension field of the modified BearerRequest; or carrying the access state of the UE in a newly-added field in the ModifyBearer Request, and sending the access state of the UE to the PGW.

Further, the PGW is specifically configured to carry the access state 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.

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

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

The invention provides a policy control method, a device and a system, wherein the method comprises the steps that an MME acquires whether UE is in an NSA (non-switched serving Access) access state according to a received request sent by the UE, the access state of the UE is sent to a PGW (packet data gateway) through the SGW, the PGW sends the access state of the UE to a PCRF (policy and charging rules function), and the PCRF carries out policy control on the UE according to the access state of the UE.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a network architecture provided in the prior art;

FIG. 2 is a diagram illustrating a network architecture provided by the prior art;

FIG. 3 is a diagram illustrating a network architecture provided by the prior art;

fig. 4 is a schematic structural diagram of a policy control system according to embodiment 1 of the present invention;

fig. 5 is a schematic diagram of an attach procedure of policy control according to embodiment 3 of the present invention;

fig. 6 is a schematic diagram of an update flow of policy control according to embodiment 3 of the present invention;

fig. 7 is a schematic diagram of an update process of policy control according to embodiment 3 of the present invention;

fig. 8 is a schematic diagram of a policy control process provided in embodiment 7 of the present invention;

fig. 9 is a schematic diagram of a policy control process provided in embodiment 8 of the present invention;

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

fig. 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;

fig. 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;

fig. 18 is a schematic structural diagram of a PCRF according to embodiment 19 of the present invention;

fig. 19 is a schematic structural diagram of a PCRF according to embodiment 20 of the present invention;

fig. 20 is a policy control device applied to an MME according to an embodiment of the present invention;

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

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

fig. 23 is a policy control device applied to a PCRF according to an embodiment of the present invention.

Detailed Description

The embodiment of the invention provides a policy control method, a policy control device and a policy control system, which aim to accurately perform differentiated policy control according to an actual access mode of a terminal.

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, 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, where the policy control system includes: MME (Mobility Management Entity) 401, SGW (Serving GateWay) 402, PGW403(PDN GateWay), PCRF404, and UE (User Equipment) 405; wherein the content of the first and second substances,

the MME401 is configured to obtain, according to a received request sent by the UE405, an access state whether the UE405 is a dependent network NSA; sending the access state of the UE405 to the SGW 402;

the SGW402 is configured to receive information carrying an access state of the UE405 sent by the MME 401; sending the access state of the UE405 to a PGW 403;

the PGW403 is configured to receive information carrying an access status of the UE405, where the information is sent by the SGW 402; sending the access state of the UE405 to the PCRF 404;

the PCRF404 is configured to receive information carrying an access state of the UE405, where the information is sent by the PGW 403; and performing policy control on the UE405 according to the access state of the UE 405.

In order to enable the PCRF to accurately distinguish the users in the NSA state and the L TE state and further 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, where the policy control system includes an MME, a serving gateway SGW, a PDN gateway PGW, a policy and charging rule function unit PCRF and a user terminal UE.

When the UE wants to perform an attach procedure or an update procedure, the UE sends a corresponding request to the MME, and the UE also sends its own capability information to the MME, where the own capability information may be whether the UE supports DCNR (dual connectivity with NR ) capability, the own capability information may be carried in the request of the UE and sent to the MME, or may be sent to the MME alone, and generally, in order to save resources occupied by signaling transmission, the own capability is carried in the request of the UE and sent to the MME.

If the UE carries the capability information of the UE itself, the MME may determine that the access state of the UE is NSA according to whether the received request sent by the UE carries the identifier of the capability information or not, or L TE. 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 received request of the UE, thereby determining the access state NSA or L TE of the UE.

In order to ensure the security of policy control, the policy control system provided in the embodiment of the present invention may further include an HSS (Home Subscriber Server), where the HSS includes Information such as a user identity and a user physical location, so that after receiving a Request sent by the UE, the MME may send an Authentication Information Request (Authentication Request Information) carrying user Information to the HSS, where the HSS authenticates the user Information, and returns an EPS security vector including an Authentication result to the MME, where if the MME determines that the UE passes Authentication according to the EPS security vector, the MME determines to allow the UE to access the network, and then performs subsequent procedures, such as sending the access state of the UE to the SGW.

In the embodiment of the 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 acquire whether the access state of the UE is L TE or NSA.

When the MME sends the access state of the UE to the SGW, the access state of the UE may be sent to the SGW by using a signaling corresponding to the request sent by the UE.

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

After receiving the access state of the UE, the PCRF performs Policy Control on the UE according to the access state of the UE, and specifically, the PCRF may issue an appropriate PCC (Policy and Charging Control) Policy for the UE based on the access state of the UE.

After the PCRF issues the PCC policy, the response information may be sent to the MME through the PGW and the SGW, so that the MME knows that policy control and the like can be successfully performed on the UE.

In the embodiment of the invention, the MME can determine whether the access state of the UE is NSA according to the request sent by the UE, and sends the determined access state of the UE to the PCRF through the SGW and the PGW, so that the PCRF can accurately distinguish the users in the NSA state and the L TE state, and further, the differentiation policy control is accurately carried out according to the actual access mode of the terminal.

Example 2:

on the basis of the foregoing embodiment, in the embodiment of the present invention, the MME is specifically configured to send the access state of the UE and a value of Quality of Service (QoS) of a range corresponding to the access state of the UE to the SGW.

After the MME acquires the access state of the UE, the value of the QoS in the access state corresponding range of the UE may be determined according to the access state of the UE, specifically, the MME may store a corresponding relationship between the access state and the value of the QoS in the access state corresponding range, or the MME may acquire a corresponding relationship between the access state and the value of the QoS in the access state corresponding range in the HSS, or the like.

After the MME determines the QoS value in the range corresponding to the access state of the UE, the MME may adjust the QoS value in the signaling to be sent to the QoS value in the range corresponding to the access state of the UE, that is, to the QoS value in the NSA standard range or to the QoS value in the L TE standard range.

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

In the embodiment of the 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, and the PCRF can more accurately control the access state of the UE according to the access state of the UE and the QoS value of the range corresponding to the access state of the UE, thereby more accurately controlling the strategy of the UE.

Example 3:

on the basis of the foregoing embodiments, in the embodiments 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; and if so, sending the access state of the UE to the SGW.

In the policy control process, the MME also needs to consider its own device capability information, and when it is determined that the UE is allowed to access by its own device capability information, the MME sends the access state of the UE to the SGW, so as to allow a subsequent UE attach procedure or a UE update procedure, etc.

The MME can obtain device capability information of itself, where the device capability information is configured locally in the MME, and specifically, the device capability information of the MME itself may include a policy for restricting access to the NR of the NSA UE, subscription information of the HSS, and the like, and an operator of an operator may set device capability information in the MME according to actual needs and experience and/or according to hardware capability of the MME, where the device capability information of the MME itself is not limited.

After acquiring the device capability information of the MME itself, the MME may determine whether to allow the UE that sends the access state of the UE to access, for example, the received access state of the UE is NSA, determine whether to allow the NSA UE to access in combination with a policy for restricting the NR access to the NSA UE in the capability information of the MME itself, if so, determine to allow the UE to access, or determine whether to store information of the UE in the HSS in combination with subscription information of the HSS in the capability information of the MME itself, and if so, determine to allow the UE to access. Since the device capability information of the MME itself is not limited, the procedure of determining whether to allow the UE to access according to the device capability information of the MME is also not limited herein.

The MME can receive a request sent by the UE, and when the UE wants to perform an attach procedure or an update procedure, the UE sends the corresponding request to the MME, and the 3GPP standard protocol specifies a procedure for the UE to send the request to the MME when the UE performs the attach procedure or the update procedure.

For convenience of understanding of the present solution by those skilled in the art, the following

flowcharts

5, 6, and 7 are used as examples to briefly describe a procedure in which the UE sends a request to the MME, but the actual application does not limit the procedures shown in fig. 5, 6, and 7, and other embodiments of the present solution do not do so, and are not described in detail in the following other embodiments.

When the UE wants to perform an Attach procedure, the UE may send an Attach Request to the MME, and the UE has not yet accessed the core network in the Attach procedure, so the MME may also update the location of the UE, and generally the HSS stores user physical location information, so the process of updating the location of the UE by the MME may be completed by communicating with the HSS, and the MME acquires the access state of the UE after receiving the Attach Request and completing the location update of the UE.

As shown in fig. 5, an Attach procedure in which a user sends an Attach Request is 1) UE starts up to initiate attachment, and sends an Attach Request message to MME through base station eNodeB, where a network capability (UE) cell of the UE in the Attach Request message carries a DCNR identifier indicating the capability of the UE to support access to NR, 2) after the MME receives the Attach Request message, the MME sends an Authentication Information Request to HHS, and HSS responds to an Authentication Information Answer message and carries an EPS Security vector, 3) the MME initiates the Authentication/Security procedure, 4) the MME sends an Update location of an Update Request message to HSS, and the HSS responds to an Update Answer L Answer, where the Update L Answer message contains subscription data, and the subscription data carries access restriction Information on whether the UE can access to NR, and performs location Update of the UE, and obtains the state of the MME a.

When the UE wants to perform an update procedure, the UE may send a Bearer Resource Allocation Request (Resource Allocation Request) to the MME, and the MME receives the Bearer Resource Allocation Request to obtain an access state of the UE.

As shown in fig. 6, 1) UE sends a taureq message to MME through base station eNodeB to initiate a TAU procedure, 2) MME sends an SGSN Context Request message to GnGp SGSN, GnGp SGSN returns an SGSN Context Response message carrying MM and PDP contexts, GnGp SGSN starts a timer, 3) MME sends an Authentication Information Request to HSS, HSS responds to the Authentication Information Answer message carrying EPS Security vector, 4) MME initiates an Authentication/Security procedure, 5) MME sends an SGSN Context message to GnGp SGSN, 6) GnGp SGSN or RNC (radio network Controller )/BSS (base station subsystem) forwards data to MME, and MME obtains whether UE is cached in eNodeB access state of NSA.

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

The update process of sending the Bearer Resource Allocation Request by the user is shown in fig. 7, 1) the UE sends a Bearer Resource Allocation Request message to the MME according to its own needs, and requests Resource Allocation to carry TFA, QoS, PTI, and the like required by the service, and the MME acquires whether the UE is in the NSA access state.

In the embodiment of the invention, the MME considers the self equipment capacity information, and when the self equipment capacity information is determined to allow the UE to access, the access state of the UE is sent to the SGW, so that the follow-up UE attachment flow or UE updating flow is allowed to be carried out, and the PCRF can be ensured to accurately carry out policy control on the UE according to the access state of the UE.

Example 4:

on the basis of the foregoing embodiments, in the embodiments of the present invention, the MME is specifically configured to carry an access state of the UE in a Create Session Request (Create Session Request) and send the access state to the SGW; or carrying the access state of the UE in a Bearer Resource Command (Bearer Resource Command) and sending the access state to the SGW; or carrying the access state of the UE in a modified Bearer Request (Modify Bearer Request) and sending the modified Bearer Request to the SGW.

The MME is specifically used for carrying the access state of the UE in an increased field of a PCO/ePCO cell in a Create Session Request and sending the access state of the UE to the SGW; 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.

The MME is specifically used for carrying the access state of the UE in an increased field of a PCO/ePCO cell in a Bearer Resource Command and sending the access state of the UE to the SGW; or carrying the access state of the UE in a newly added cell of Bearer resource command and sending the cell to the SGW.

The MME is specifically configured to carry the access state of the UE in a Private Extension field in a Modify Bearer Request and send the access state to the SGW; or carrying the access state of the UE in a newly-added field in a modified BearerRequest and sending the access state to the SGW.

The MME may carry the access state of the UE in a Create Session Request to the SGW, where it may be considered that the location of the UE has moved, the MME to which the MME is connected has been changed, and the SGW to which the SGW is connected has also been changed, the MME after the change carries the access state of the UE in the Create Session Request to the SGW, the MME may carry the access state of the UE in an add field of a PCO/ePCO cell in the Create Session Request or in a newly added cell of the Create Session Request, the MME may carry the access state of the UE in a Modify Bearer Request to the SGW, where it may be considered that the location of the UE has not moved, the MME to which the MME is connected has not changed and the corresponding SGW has not changed, or the location of the UE has moved but the corresponding SGW has not changed, the MME may carry the access state of the UE in a Modify Bearer Request or a version field of the UE in an access Request field, the MME can carry the access state of the UE in the Bearer Resource Command and send the access state to the SGW, at this time, the UE can be considered to be subjected to an updating process, the MME carries the access state of the UE in the Bearer Resource Command and sends the access state to the SGW, and the access state of the UE can be carried in an added field of a PCO/ePCO cell in the Bearer Resource Command or a newly added cell of the Bearer Resource Command.

Taking the above as an example, the Attach flow of the Attach Request sent by the user is shown in fig. 5, 5) the MME sends a Create Session Request message to the SGW, requesting to establish a default bearer, at this time, the MME will determine whether to allow the UE to access according to the capability of the device itself (including the policy of locally configuring the restriction on the NSA UE access NR and the subscription information of the HSS), if so, add a new identifier (NSA or L TE) carrying the actual access state of the UE in the Create Session Request message, and at the same time, adjust the requested QoS to the corresponding NSA or L TE standard for reporting, and specifically implement that fields are added in the PCO/ePCO cell or cells are added.

The update process of sending TAU Request by user is shown in fig. 6, 7) MME sends Create Session Request message to Serving GW, i.e. SGW, and creates default bearer, at this time MME will determine whether to allow UE access by combining the device's own capability (including policy of local configuration for restricting NSA UE access NR and subscription information of HSS), if it is, MME adds an actual access state identifier (NSA or L TE) carrying UE in the Create Session Request message, and at the same time, may also adjust the requested QoS to the corresponding NSA or L TE standard report, and the specific implementation may be by adding field or adding cell in PCO/ePCO cell.

The update process of sending the Bearer Resource Allocation Request by the user is shown in fig. 7, 2) the MME sends a Bearer Resource Command message to the Serving GW, at this time, the MME will determine whether to allow the UE to access according to the capability of the device itself (including the policy of locally configuring the restriction on the NSA UE access NR and the subscription information of the HSS), if so, add a Bearer Resource Command message carrying the actual UE access status identifier (NSA or L TE), and at the same time, adjust the requested QoS to the corresponding NSA or L TE standard for reporting, and specifically implement that the requested QoS is carried by adding a field or adding a cell in the PCO/ePCO cell, and simultaneously carrying the information such as TAD requested by the UE.

The interface S11, S5/S8 can transfer the actual access state information of UE by expanding the existing PCO/ePCO or RATType cell, or by defining new cell.

In the embodiment of the invention, the MME carries the access state of the UE in the Create Session Request or Bearer Resource Command or modification Bearer Request and sends the access state to the SGW, so that the PCRF can be ensured to accurately perform policy control on the UE subsequently according to the access state of the UE.

Example 5:

on the basis of the foregoing embodiments, in the embodiments of the present invention, the SGW is specifically configured to carry the access state of the UE in a Create Session Request and send the access state to the PGW; or carrying the access state of the UE in a ModifyBearer Request and sending the access state to a PGW; or carrying the access state of the UE in a Bearer Resource Command and sending the access state to the PGW.

The SGW is specifically configured to send the access state of the UE to the PGW in an added 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 is sent to the PGW.

The SGW is specifically configured to send the access state of the UE to the PGW in an added 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.

The SGW is specifically configured to carry the access state of the UE in a Private Extension field in a Modify Bearer Request and send the access state to the PGW; or carrying the access state of the UE in a newly-added field in a modified BearerRequest, and sending the access state to the PGW.

The SGW may carry an access state of the UE in a Create Session Request to send to the PGW, an added field of a PCO/ePCO cell in the Create Session Request or a newly added cell of the Create Session Request may carry the access state of the UE, the SGW may carry the access state of the UE in a modified Bearer Request to send to the PGW, a Private Extension field in the modified Bearer Request or a newly added field in the modified Bearer Request may carry the access state of the UE, the SGW may carry the access state of the UE in a Bearer Resource Command to send to the PGW, and the added field of the PCO/ePCO cell in the Bearer Resource Command or the newly added cell of the Bearer Resource Command may carry access information of the UE.

The above flowchart is also used as an example to explain.

The Attach procedure for the user to send the Attach Request is as shown in fig. 5, 6) the SGW sends a Create SessionRequest message to the PGW, and transmits the actual access state identifier of the UE to the PGW.

The updating process of sending TAU Request by user is shown in fig. 6, 8) SGW sends Modify bearerrrequest message to PGW, updates IP, TEID, RAT of signaling plane and user plane, and UE actual access state identifier (NSA or L TE), and specific implementation may use Private Extension field or newly added field.

The update process of sending the Bearer Resource Allocation Request by the user is shown in fig. 7, 3) the Serving GW sends a Bearer Resource Command message to the PDN GW, carrying the UE actual access status identifier (NSAor L TE), and the specific implementation may be realized by adding a field or adding a new cell in the PCO/ePCO cell.

In the embodiment of the invention, the SGW carries the access state of the UE in a Create Session Request, a modified Bearer Request or a Bearer Resource Command and sends the access state of the UE to the PGW, thereby ensuring that the PCRF can accurately perform policy control on the UE subsequently according to the access state of the UE.

Example 6:

on the basis of the foregoing embodiments, in the embodiments of the present invention, the PGW is specifically configured to carry access state information 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 information of the UE in a CCR-U message of a Gx interface and sending the information to the PCRF.

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

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

When the PGW receives the Create Session Request, the PGW carries the access state of the UE in the CCR-I message of the Gx interface and sends the access state to the PCRF, which may be understood as that the PGW initiates a Gx interface IP-CAN Session establishment procedure, and the extended existing AVP field or newly added AVP field of the CCR-I message of the Gx interface may carry the access state of the UE, that is, the access state of the UE is uploaded in a manner of newly adding an AVP field or extending a value range of the existing AVP field.

When the PGW receives the modified Bearer Request, the PGW carries the access state of the UE in the CCR-U message of the Gx interface and sends the access state to the PCRF, which may be understood as that the PGW initiates a Gx interface IP-CAN session modification procedure, and the extended existing AVP field or newly added AVP field of the CCR-U message of the Gx interface may carry the access state of the UE, that is, the access state of the UE is uploaded in a manner of newly adding an AVP field or extending a value range of the existing AVP field.

When the PGW receives the Bearer Resource Command, the PGW carries the access state of the UE in the CCR-U message of the Gx interface and sends the CCR-U message to the PCRF, which may be understood as that the PGW initiates a Gx interface IP-CAN session modification procedure, and the extended existing AVP field or newly added AVP field of the CCR-U message of the Gx interface may carry the access state of the UE, that is, the access state of the UE is uploaded in a manner of newly adding an AVP field or extending a value range of the existing AVP field.

The above flowchart is also used as an example to explain.

An Attach flow of a user sending Attach Request is shown in fig. 5, 7) a PGW initiates a Gx interface IP-CAN session establishment flow, if the PGW receives a UE actual access state identifier sent by an SGW, the PGW sends the UE actual access state identifier in a CCR-I message of the Gx interface, and specifically, the implementation CAN be solved by adding an AVP or expanding the existing AVP value range, and after receiving the identifier, a PCRF CAN issue an appropriate PCC policy for the UE based on the UE actual access mode.

In the attach procedure, after the PCRF issues the PCC policy, the PCRF may also send Response information to the MME through the PGW and the SGW, where the Response information is issued as shown in fig. 5, 8) the PGW responds to a Create Session Response message to the SGW, then SGW responds Create Session Response to MME, 9) MME sends Initial Context setup request to eNodeB, carries Attach Accept message to indicate the attachment of network side is completed, the message includes an active Default EPS Bearer Context Request message requesting to establish a Default Bearer wirelessly, 10) the UE returns an Attach Complete, the eNodeB returns an Initial Context Setup Response message, and 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 the TEID, and the SGW responds to a success message of the Modify Bearer Response.

The updating process of sending the TAU Request by the user is shown in fig. 6, 8) the P-GW initiates IP-CAN session modification to the PCRF, notifies the change information, and if the PGW receives the UE actual access state identifier sent by the SGW, the P-GW sends the UE actual access state identifier in the CCR-U message of the Gx interface, which CAN be specifically solved by adding an AVP or expanding the existing AVP value range, and the PCRF CAN issue an appropriate PCC policy for the UE based on the UE actual access mode after receiving the identifier.

In the Update procedure, after the PCRF issues the PCC policy, the PCRF may send Response information to the MME through the PGW and the SGW, where the Response information is issued as shown in fig. 6, 10) the PGW returns a modified 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 creation of the Bearer is successful, 12) the MME sends an Update Request message Update location to the HSS, 13) if the message is indicated by Single registration indication, then sends a Cancel Request (Cancel location Request) to the gp SGSN, otherwise, the message is not sent to the SGSN, GnGp SGSN waits for the timeout of the previous timer, deletes the user context after GnGp SGSN responds to the Cancel location confirmation, and sends a Response message to the HSS, 14) the HSS responds to Update Answer L location, and the message includes a global tracking identifier (Update location Response), and the MME sends a Temporary Response message including a Temporary identifier of the global identity registration Request, and the Temporary Response message includes a Temporary identifier of the UE id registration indication, and the Temporary identifier of the MME (Temporary identifier) UE 16).

An updating process of sending a Bearer Resource Allocation Request by a user is shown in fig. 7, 4) a PGW initiates IP-CAN session modification to a PCRF, notifies change information, and sends a UE actual access state identifier in a CCR-U message of a Gx interface if the PGW receives the UE actual access state identifier sent by the SGW, specifically, the implementation CAN be solved by adding an AVP mode or expanding an existing AVP value range mode, and the PCRF CAN issue an appropriate PCC policy for the UE based on the UE actual access mode after receiving the identifier.

In the update procedure, after the PCRF issues the PCC policy, the PCRF may further send Response information to the MME through the PGW and the SGW, where the Response information is as shown in fig. 7, 5) the PGW sends a Create Bearer Request message to the SGW, requesting to establish a Dedicated Bearer, the message carries an IMSI, a Bearer QoS, and &lttttranslation = L "&tttl &ltt/t &gttbi, PTI, etc., 6) the SGW sends a Create Bearer Request message to the MME, 7) the MME sends an E-RAB Setup Request message to the eNodeB, requesting to establish a Create S1 Bearer, the message carries an NAS message Activate defined EPS Bearer Request, 8) the eNodeB sends an RRC Reconfiguration Request (RRC Connection Reconfiguration Request) to the UE, requests to establish an RRC Connection Reconfiguration of a radio Bearer, responds to the RRC Connection Request message, and responds to the eNodeB, after the RRC Connection Request message carries a NAS Reconfiguration Request message, the RRC Connection Request message, the eNodeB sends an RRC Connection Request message, the RRC Connection Request message carries an RRC Connection Reconfiguration Response message, the eNodeB completes the RRC Connection Request message, the RRC Connection Reconfiguration Response message, the eNodeB completes the RRC Connection Response message, the MME sends an RRC Connection Response message, the RRC Response message, the RRC Connection Request message, the RRC Connection Request, the RRC Connection.

The PGW supports reporting the actual access state information of the UE to the PCRF, the PGW specifically analyzes the actual access state of the UE after receiving a signaling message sent by the SGW, and reports an actual access state identifier to the PCRF through a Gx interface, the PCRF identifies the actual access mode (L TE or NSA) of the UE after receiving the message reported by the PGW, and makes a corresponding control strategy for the UE according to the state, and the PCRF supports providing a proper differential control strategy for the UE according to the actual access state information of the UE reported by the PGW.

The Gx interface for transmitting the actual access state information of the UE can be realized by expanding the existing RAT-Type AVP, and can also be realized by defining a new cell.

In the embodiment of the 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 the access state to the PCRF, so that the PCRF can be ensured to accurately perform policy control on the UE subsequently according to the access state of the UE.

Example 7:

on the basis of the foregoing embodiments, fig. 8 is a schematic diagram of a policy control process provided in an embodiment of the present invention, where the process includes the following steps:

s801: and the MME acquires whether the UE is in the NSA access state or not according to the received request sent by the UE.

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

S802: and sending the access state of the UE to a PGW through an SGW, so that the PGW sends the access state of the UE to a PCRF, and 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:

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

if yes, the subsequent steps are carried out.

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

In the invention, the MME can determine whether the access state of the UE is NSA according to the request sent by the UE, and sends the determined access state of the UE to the PCRF through the SGW and the PGW, so that the PCRF can accurately distinguish the users in the NSA state and the L TE state, and further, the differentiation strategy control is accurately carried out 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 in an embodiment of the present invention, where the process includes the following steps:

s901: and the SGW receives the information carrying the UE access state sent by the MME.

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

S902: and sending the access state of the UE to the PGW, so that the PGW sends the access state of the UE to the PCRF, and 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 a Create Session Request and sending the access state to a PGW; or

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

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

In the invention, the SGW sends the determined access state of the UE to the PCRF, so that the PCRF can accurately distinguish the users in the NSA state and the 4G state, and further, the differentiation policy control is accurately carried out according to the actual access mode of the terminal.

Example 9:

on the basis of the foregoing embodiments, fig. 10 is a schematic diagram of a policy control process provided in an embodiment of the present invention, where the policy control process includes the following steps:

s1001: and the PGW receives the information carrying the UE access state sent by the SGW.

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

S1002: and sending the access state of the UE to a PCRF (policy and charging rules function), 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:

Fig. 11 is a schematic diagram of a policy control process according to an embodiment of the present invention, where the process includes the following steps:

s1101: and the PCRF receives the information carrying the access state of the user terminal UE, which is sent by the PGW.

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

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

In the invention, the PGW sends the determined access state of the UE to the PCRF, so that the PCRF can accurately distinguish the users in the NSA state and the 4G state, and further, the differentiation policy control is accurately carried out 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 MME1200, 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 read memory 1202, and perform the following processes: controlling the transceiver 1203 to acquire whether the UE is in an NSA access state according to the received request sent by the UE; and sending the access state of the UE to a PGW through an SGW, so that the PGW sends the access state of the UE to a PCRF, and the PCRF performs policy control on the UE according to the access state of the UE.

Based on the same inventive concept, the embodiment of the present invention further provides an MME, and because the problem solving principle of the MME is similar to that of the policy control method, the implementation of the MME may refer to the implementation of the method, and repeated details are not repeated.

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

Alternatively, the processor 1201 may be a CPU (central processing unit), an ASIC (Application specific integrated Circuit), an FPGA (Field Programmable Gate Array), or a CP L D (Complex Programmable L organic Device).

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; and if so, sending the access state of the UE to a PGW through the SGW.

The processor 1201 is specifically configured to control the transceiver 1203 to carry the access state of the UE in a Create Session Request and send the access state to a PGW through an SGW; or carrying the access state of the UE in a BeareResource Command and sending the access state to a PGW through an 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 PGW through the SGW.

The processor 1201 is specifically configured to control the transceiver 1203 to carry the access state of the UE in an added field of a PCO/ePCO cell in a Create Session Request, and send the access state to a PGW through an SGW; 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 PGW through the SGW.

The processor 1201 is specifically configured to carry the access state of the UE in an added field of a PCO/ePCO cell in a Bearer resource command and send the added field to a PGW through an SGW; or carrying the access state of the UE in a newly added cell of a Bearer Resource Command, and sending the access state to the PGW through the SGW.

Example 11:

on the basis of the foregoing embodiments, an embodiment of the present invention further provides an MME1300, as shown in fig. 13, including: the system comprises a processor 1301, a communication interface 1302, a memory 1303 and a communication bus 1304, wherein the processor 1301, the communication interface 1302 and the memory 1303 complete mutual communication through the communication bus 1304;

the memory 1303 stores therein a computer program that, when executed by the processor 1301, causes the processor 1301 to perform any of the embodiments described above as applied to an MME.

The communication bus mentioned in the MME may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.

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

The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Alternatively, the memory may be at least one memory device located remotely from the processor.

The processor may be a general-purpose processor, including a central processing unit, a Network Processor (NP), and the like; but may also be a Digital instruction processor (DSP), an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like.

Example 12:

on the basis of the foregoing embodiments, an embodiment of the present invention further provides a computer storage readable storage medium, in which a computer program executable by an MME is stored, and when the program runs on the MME, the MME is caused to execute any of the above embodiments applied to the MME.

The computer readable storage medium may be any available medium or data storage device that can be accessed by the processor in the MME, including but not limited to magnetic memory such as floppy disks, hard disks, magnetic tape, magneto-optical disks (MO), etc., optical memory such as CDs, DVDs, BDs, HVDs, etc., and semiconductor memory such as ROMs, EPROMs, EEPROMs, non-volatile memory (NAND F L ASH), Solid State Disks (SSDs), etc.

Example 13:

on the basis of the foregoing embodiments, an SGW1400 according to an embodiment of the present invention is shown in fig. 14, and includes: a processor 1401, a memory 1402, and a transceiver 1403;

the processor 1401 is configured to execute the program in the read memory 1402, and perform the following processes: controlling the transceiver 1403 to receive information carrying a UE access status sent by an MME; and sending the access state of the UE to the PGW, so that the PGW sends the access state of the UE to the PCRF, and the PCRF performs policy control on the UE according to the access state of the UE.

Based on the same inventive concept, the embodiment of the present invention further provides an SGW, and since the principle of the SGW to solve the problem is similar to that of the policy control method, the implementation of the SGW may refer to the implementation of the method, and repeated details are not repeated.

In FIG. 14, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1401, and various circuits, represented by memory 1402, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The transceiver 1403 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus 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.

Alternatively, the processor 1401 may be a CPU (central processing unit), an ASIC (Application specific integrated Circuit), an FPGA (Field Programmable Gate Array), or a CP L D (Complex Programmable L organic Device).

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

The processor 1401 is specifically configured to control the transceiver 1403 to send the access state of the UE to the PGW, where the access state is carried in an addition field of a PCO/ePCO cell 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.

The processor 1401 is specifically configured to control the transceiver 1403 to send the access state of the UE to the PGW in an added 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.

The processor 1401 is specifically configured to control the transceiver 1403 to carry the access state of the UE in a Private Extension field in a modified Bearer Request and send the access state to the PGW; 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.

Example 14:

on the basis of the foregoing embodiments, an SGW1500 according to an embodiment of the present invention is provided, as shown in fig. 15, and includes: the system comprises a processor 1501, a communication interface 1502, a memory 1503 and a communication bus 1504, wherein the processor 1501, the communication interface 1502 and the memory 1503 complete communication with each other through the communication bus 1504;

the memory 1503 stores therein a computer program that, when executed by the processor 1501, causes the processor 1501 to perform any of the embodiments described above as applied to the SGW.

The communication bus mentioned in the SGW may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.

The communication interface 1502 is used for communication between the SGW and other devices as described above.

Example 15:

on the basis of the foregoing embodiments, the present invention further provides a computer-readable storage medium, in which a computer program executable by an SGW is stored, and when the program runs on the SGW, the SGW is enabled to execute any of the above embodiments applied to the SGW.

The computer readable storage medium may be any available media or data storage device that can be accessed by the processor in the SGW, including but not limited to magnetic memory such as floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc., optical memory such as CDs, DVDs, BDs, HVDs, etc., and semiconductor memory such as ROMs, EPROMs, EEPROMs, non-volatile memory (NAND F L ASH), Solid State Disks (SSDs), etc.

Example 16:

on the basis of the foregoing embodiments, an embodiment of the present invention further provides a PGW1600, as shown in fig. 16, including: a processor 1601, a memory 1602, and a transceiver 1603;

the processor 1601 is configured to execute the program read from the memory 1602, and perform the following processes: controlling the transceiver 1603 to receive information carrying a UE access state sent by an SGW; and sending the access state of the UE to a PCRF (policy and charging rules function), so that the PCRF performs policy control on the UE according to the access state of the UE.

Based on the same inventive concept, the embodiment of the present invention further provides a PGW, and since the principle of solving the problem of the PGW is similar to that of the policy control method, the implementation of the PGW may refer to the implementation of the method, and repeated details are not described again.

In fig. 16, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1601 and various circuits of memory represented by memory 1602 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The transceiver 1603 may be a plurality of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus 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.

Alternatively, the processor 1601 may be a CPU (central processing unit), an ASIC (Application specific integrated Circuit), an FPGA (Field Programmable Gate Array), or a CP L D (Complex Programmable L organic Device).

The processor 1601 is specifically configured to control the transceiver 1603 to carry the access state of the UE in a CCR-I message of a Gx interface and send the CCR-I message to a 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.

The processor 1601 is specifically configured to control the transceiver 1603 to send the access status of the UE to the PCRF, where the access status is 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.

The processor 1601 is specifically configured to control the transceiver 1603 to send the access status of the UE to the PCRF, where the access status is 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.

Example 17:

on the basis of the foregoing embodiments, an embodiment of the present invention further provides a PGW1700, as shown in fig. 17, including: the system comprises a processor 1701, a communication interface 1702, a memory 1703 and a communication bus 1704, wherein the processor 1701, the communication interface 1702 and the memory 1703 are communicated with each other through the communication bus 1704;

the memory 1703 has stored therein a computer program that, when executed by the processor 1701, causes the processor 1701 to perform any of the embodiments described above as applied to a PGW.

The communication bus mentioned in the above PGW may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.

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

Example 18:

on the basis of the foregoing embodiments, an embodiment of the present invention further provides a computer storage readable storage medium, where a computer program executable by a PGW is stored in the computer readable storage medium, and when the program runs on the PGW, the PGW is enabled to execute any of the above embodiments applied to the PGW.

The computer readable storage medium may be any available media or data storage device that can be accessed by the processor in the PGW, including but not limited to magnetic memory such as floppy disks, hard disks, magnetic tape, magneto-optical disks (MO), etc., optical memory such as CDs, DVDs, BDs, HVDs, etc., and semiconductor memory such as ROMs, EPROMs, EEPROMs, non-volatile memory (NAND F L ASH), Solid State Disks (SSDs), etc.

Example 19:

on the basis of the foregoing embodiments, an embodiment of the present invention further provides a PCRF1800, as shown in fig. 18, including: a processor 1801, memory 1802, and transceiver 1803;

the processor 1801 is configured to execute the program in the read memory 1802, and perform the following processes: controlling the transceiver 1803 to receive information carrying a UE access status sent by a PGW; and performing policy control on the UE according to the access state of the UE.

Based on the same inventive concept, the embodiment of the invention also provides a PCRF, and as the principle of solving the problem of the PCRF is similar to the policy control method, the implementation of the PCRF can refer to the implementation of the method, and repeated parts are not repeated.

In FIG. 18, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1801 and various circuits of memory represented by memory 1802 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The transceiver 1803 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus 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 foregoing embodiments, an embodiment of the present invention further provides a PCRF1900, as shown in fig. 19, including: the system comprises a processor 1901, a communication interface 1902, a memory 1903 and a communication bus 1904, wherein the processor 1901, the communication interface 1902 and the memory 1903 are communicated with each other through the communication bus 1904;

the memory 1903 stores therein a computer program that, when executed by the processor 1901, causes the processor 1901 to perform any of the embodiments described above as applied to a PCRF.

The communication bus mentioned in the PCRF may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.

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

Example 21:

on the basis of the foregoing embodiments, an embodiment of the present invention further provides a computer storage readable storage medium, where a computer program executable by a PCRF is stored in the computer readable storage medium, and when the program runs on the PCRF, the PCRF is caused to implement any of the above embodiments applied to the PCRF when executing the program.

The computer readable storage medium may be any available medium or data storage device that can be accessed by the processor in the PCRF, including but not limited to magnetic storage such as floppy disks, hard disks, magnetic tape, magneto-optical disks (MO), etc., optical storage such as CDs, DVDs, BDs, HVDs, etc., and semiconductor storage such as ROMs, EPROMs, EEPROMs, non-volatile memory (NANDF L ASH), Solid State Disks (SSDs), etc.

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

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

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, and the PCRF performs policy control on the UE according to the access state of the UE.

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; and if so, sending the access state of the UE to a PGW through the SGW.

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

The sending module is specifically configured to send the access state of the UE to the PGW through the SGW, where the access state is carried in an added field of a PCO/ePCO cell in a Create Session Request; or the access state of the UE is carried in a newly added cell of a createsessionsRequest and is sent to a PGW through the SGW.

The sending module is specifically configured to send the access state of the UE to the PGW through the SGW, where the access state is carried in an added field of a PCO/ePCO cell in a Bearer Resource Command; or carrying the access state of the UE in a newly added cell of the BearerResourceCommand and sending the newly added cell to the PGW through the SGW.

The sending module is specifically configured to send the access state of the UE to the PGW through the SGW, where the access state is carried in a Private Extension field in a modified Bearer Request; or carrying the access state of the UE in a newly added field in the ModifyBearer Request, and sending the access state to the PGW through the SGW.

Fig. 21 is a policy control apparatus according to an embodiment of the present invention, applied to an SGW, where the policy control apparatus includes:

a receiving module 2101, configured to receive information carrying a UE access status sent by an MME;

a sending module 2102, 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, and the PCRF performs policy control on the UE according to the access state of the UE.

The sending module is specifically configured to send the access state of the UE to the PGW while being carried in a Create Session Request; or carrying the access state of the UE in a modified Bearer Request and sending the access state to a PGW; or carrying the access state of the UE in a Bearer Resource Command and sending the access state to the PGW.

The sending module is specifically configured to send the access state of the UE to the PGW in an added 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 CreateSessionRequest and is sent to the PGW.

The sending module is specifically configured to send the access state of the UE to the PGW in an added 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 BearerResourceCommand and sending the cell to the PGW.

The sending module is specifically configured to send the access state of the UE to the PGW, where the access state is carried in a Private Extension field in a Modify Bearer Request; or carrying the access state of the UE in a newly-added field in a modified BearerRequest, and sending the access state to the PGW.

Fig. 22 is a policy control apparatus according to an embodiment of the present invention, applied to a PGW, where the policy control apparatus includes:

a receiving module 2201, configured to receive information carrying a UE access status sent by an SGW;

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

The sending module is specifically configured to carry the access state information 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 information of the UE in a CCR-U message of a Gx interface and sending the information to the PCRF.

The sending module is specifically configured to send the access state of the UE to the PCRF, where the access state is 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.

The sending module is specifically configured to send the access state of the UE to the PCRF, where the access state is 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.

Fig. 23 is a policy control device provided in an embodiment of the present invention, which is applied to a PCRF, and includes:

a receiving module 2301, configured to receive information carrying an access state of a user equipment UE sent by a PDN gateway PGW;

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

For the method/apparatus embodiment, since it is substantially similar to the system embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the system embodiment.

It is to be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any actual such relationship or order between such entities or operations.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or 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, and the like) 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 application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such 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 such modifications and variations.

Claims

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:

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:

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:

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:

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:

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:

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:

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

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

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

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:

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:

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:

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);

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;

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 content of the first and second substances,

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.