WO2010108367A1 - Traffic switch method, traffic information control method, corresponding equipment and system - Google Patents

Abstract

A traffic switch method, traffic information control method, corresponding equipment and system are provided by the embodiments of the invention, wherein, the traffic switch method includes: the indication information is received, the indication information indicates the resource of the current network for the User Equipment (UE) needs to be released because of the causation of the network side; when the UE accesses using the multi-access mode, the traffic related to the released resource is switched to other networks the UE accessed to according to the indication information. By applying the technical scheme provided by the embodiments of the invention, when UE accesses to the network in a multi-access mode and UE can’t access to the current network, the network side switches the traffic of the UE in the current network to other networks the UE accessed to, in order to ensure the continuity of the traffic.

Description

 Service switching method, business information control method, related equipment and system

TECHNICAL FIELD The present invention relates to the field of communications technologies, and in particular, to a service switching method, a service information control method, a related device, and a system. In the 3GPP network of the 3rd Generation Partnership Project, when the UE (User Equipment) is limited in the current access technology or the access location or the network side cannot provide sufficient resources, the mobility management network element The UE sends a Detach Request, and the mobility management network element sends a bearer deletion request to the PDN GW (Packet Data Network Gateway), and the PDN GW deletes all the service information of the UE, and releases all the UEs. Bearer resources, similar situations also exist in non-3F partner projects in non-3GPP networks. Currently, there is a need for a UE to perform services simultaneously on a 3GPP network and a non-3GPP network. In this case, when the UE cannot access the current network (such as a 3GPP network or a non-3GPP network), the network side does not provide processing for service switching. Program. SUMMARY OF THE INVENTION Embodiments of the present invention provide a service switching method, a service information control method, a related device, and a system. When a UE accesses a network in a multiple access mode, if the UE cannot access the current network, the network side uses the UE. The traffic in the current network is switched to other networks accessed by the UE.

 In view of this, the embodiments of the present invention provide:

 A service switching method includes:

 Receiving indication information, where the indication information indicates that the resource of the user equipment UE in the current network needs to be released due to the network side;

 When the UE accesses in the multiple access mode, the service related to the released resource is switched to another network accessed by the UE according to the indication information.

 A method for controlling business information, including:

 Obtaining an access mode of the UE accessing the network;

If the access mode is multiple access mode access, when the UE needs to release resources in the current network, And transmitting indication information indicating that the service information of the UE on the PDN GW is not deleted, so that the PDN GW reserves the service information of the UE.

 A gateway device, comprising:

 The receiving unit is configured to receive indication information, where the indication information indicates that the resource of the user equipment UE in the current network needs to be released due to the network side;

 a first determining unit, configured to determine whether the UE accesses in a multiple access mode;

 And a switching unit, configured to: when the UE accesses in the multiple access mode, switch the service related to the released resource to another network accessed by the UE according to the indication information.

 A network device, including:

 a receiving unit, configured to receive a message that informs the UE of an access mode of accessing the network;

 And a sending unit, configured to: when the UE needs to release resources in the current network, when the UE accesses in a multiple access mode, send indication information indicating that the service information of the UE on the PDN GW is not deleted.

 A user equipment, including:

 a receiving unit, configured to receive a resource deletion message sent by the network side to the current network;

 And a sending unit, configured to initiate a resource establishment request in another network after receiving the resource deletion message.

 A network system, including: PDN GW and PCRF,

 The PDN GW is configured to receive indication information, where the indication information indicates that the user equipment UE is required to release the resources of the user equipment in the current network, and when the UE accesses in the multiple access mode, the PCC sent by the PCRF is received. a rule, according to the PCC rule, switching a service related to the released resource to another network accessed by the UE;

 The PCRF is configured to generate a PCC rule and send it to the PDN GW.

 A network system, including: BBERF and PCRF,

 The BBERF is used to obtain an access mode of the UE accessing the network. If the access mode is a multi-access mode access, when the UE needs to release resources in the current network, send an indication to the PCRF not to delete the PDN GW. The indication information of the service information of the UE;

 The PCRF is configured to notify the PDN GW to retain the service information of the UE after receiving the indication information indicating that the service information of the UE on the PDN GW is not deleted.

In the embodiment of the present invention, when the PDN GW receives the resource indicating that the UE is to be released in the current network due to the network side, if the UE accesses the network in the multiple access mode, the UE transmits the current in the current network. Switch to other networks accessed by the UE to ensure continuity of services.

 In the embodiment of the present invention, after the network device learns that the UE accesses the multiple networks in the multiple access mode, when the UE needs to release the bearer resources of the UE in the current network, the network device sends an indication indicating that the service information of the UE on the PDN GW is not deleted. The information is such that the PDN GW retains the service information of the UE. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a structural diagram of a core network of a wireless evolved network;

 2 is a signaling diagram of a service switching method according to Embodiment 2 of the present invention;

 3 is a signaling diagram of a service switching method according to Embodiment 3 of the present invention;

 4 is a signaling diagram of a service switching method according to Embodiment 4 of the present invention;

 FIG. 5 is a signaling diagram of a service switching method according to Embodiment 5 of the present invention; FIG.

 6 is a signaling diagram of a service information control method according to Embodiment 6 of the present invention;

 7 is a structural diagram of a gateway device according to Embodiment 8 of the present invention;

 8 is a structural diagram of a network device according to Embodiment 9 of the present invention;

 FIG. 9 is a structural diagram of a user equipment according to Embodiment 10 of the present invention. The architecture of the 3GPP network in the embodiment of the present invention is as shown in FIG. 1. The core network of the wireless evolved network mainly includes an MME (Mobility Management Entity), an S-GW (Serving Gateway, a service gateway), PDN GW (PDN Gateway, Packet Data Network Gateway) has three logical functions. The MME is responsible for NAS (Non-Access Stratum) signaling and NAS signaling encryption, roaming, tracking, etc., and assigns user temporary identity. Identification, security function, etc., which is equivalent to the control plane part of the current UMTS (Universal Mobile Telecommunications System) internal SGSN (Serving GPRS Support Node). The S-GW is responsible for the local mobility anchor and the mobility anchor inside the 3GPP system and the lawful interception related information; the PDN GW is responsible for policy enforcement and charging and lawful interception related functions. The HSS (Home Subscriber Server) is used to store user subscription information.

 Embodiment 1:

The first embodiment of the present invention provides a service switching method, where the method includes: the packet data network gateway PDN GW receives the indication information, where the indication information indicates that the user equipment UE needs to be released due to the network side The resource of the current network; when the UE accesses in the multiple access mode, the service related to the released resource is switched to another network accessed by the UE according to the indication information.

 The service that is switched to the other network that the UE accesses may be all the services related to the resources that need to be released in the current network, or may be part of the services related to the resources that need to be released in the current network, and does not affect the implementation of the present invention.

 The current network may be a 3GPP network in the subsequent Embodiment 2 to Embodiment 5, or may be a non-3GPP network.

 The service information includes: a filter of the service flow, a filter tuple, and the like.

 In the first embodiment of the present invention, when the PDN GW receives the indication information indicating that the UE needs to release the resources of the UE in the current network due to the network side, if the UE accesses the network in the multiple access mode, the service switching of the UE in the current network is performed. Go to other networks that the UE accesses to ensure continuity of services.

 In this embodiment and the subsequent embodiments, the UE accesses the finger in multiple access mode: the UE can simultaneously access multiple networks for the same APN, for example, the UE accesses simultaneously on the 3GPP network and/or the non-3GPP network.

 Embodiment 2:

 Referring to FIG. 2, a second embodiment of the present invention provides a service switching method, where the HSS triggers a separation process of a UE in a 3GPP network, and the method includes:

 B11. If the subscription data of the UE changes, the HSS sends the UE's new subscription data to the mobility management network element.

 It should be noted that in some cases, the AAA (Authentication, Authorization, Accounting, Authentication, Authorization, and Accounting) server shares a physical network element with the HSS.

 B12. According to the new subscription data of the UE, the mobility management network element determines that the UE cannot continuously access the current network, and initiates a separation request to the UE.

 B13. The mobility management network element sends a bearer deletion request message to the PDN GW by using the S-GW, where the message carries the indication information, where the indication information indicates that the UE needs to release the bearer resource of the UE in the current network, and the indication information may be The cause value of the bearer is deleted, where the network side causes include, but are not limited to, the UE access location is limited or the UE access technology is limited.

 It should be noted that B12 and B13 have no timing sequence in execution, and may perform B13 first, then B12, or B12 and B13 simultaneously, without affecting the implementation of the present invention.

B14. The PDN GW determines whether the UE accesses in a multimode access mode, and if not, deletes the UE. The service information is used to release the bearer resource of the UE, and the process is terminated. If yes, an IP CAN session modification request message is sent to the PCRF, where the message may carry indication information indicating that the current network cannot provide services for the UE.

 After receiving the IP CAN session modification message, the PCRF generates an IPC session-related PCC rule according to at least one of the current network situation, the UE subscription data, and the operator policy, and sends the IP CAN to the PDN GW. The session modification response message carries the above PCC rule. In this step, the PCRF recommends that the service carried out in the current network can be switched to the target network, that is, the service can be continued in the target network, and the access type of the target network can also be carried in the IP CAN session modification response message.

 Or, in the step B14, the PDN GW determines that the service in the current network needs to be switched to the target network according to at least one of the service information of the UE, the carrier policy, and the resource status of the other network, and sends the IP CAN session modification to the PCRF. The message continues to execute B16 in response to requesting an IPC session related PCC.

 Alternatively, the PDN GW is configured with a static PCC rule, and the PDN GW determines that the service in the current network needs to be switched to the target network according to at least one of the service information of the UE, the operator policy, and the resource status of other networks. The PCC rule reserves resources for the service in the target network according to the PCC rule, and after the service is switched to the target network, the resources in the current network are released, and then the B16 sends a bearer deletion response message to the S-GW. - The GW sends a bearer deletion response message to the mobility management network element.

 B16. The PDN GW allocates a new bearer resource to the UE according to the PCC rule related to the IP CAN session, and sends a bearer deletion response message to the S-GW, and the S-GW sends a bearer deletion response message to the mobility management network element.

 B17. The UE sends a separation accept message to the mobility management network element.

 B18. If there is a BBERF in the target network (if the non-3GPP network, the access gateway may be a BBERF), the PCRF sends a re-authorization request to the BBERF, where the re-authorization request carries the PCC rule related to the gateway control session.

 B19. The BBERF initiates a process of establishing a proprietary resource according to a PCC rule related to the gateway control session.

B110. The BBERF sends a re-authorization response to the PCRF. In the second embodiment of the present invention, when the network side initiates the separation process, the mobility management network element sends the cause indication to the PDN GW. If the cause indication indicates that the UE needs to release the bearer resources of the UE in the current network, the PDN GW determines. After the UE is accessed in the multiple access mode, the service information of the UE is not deleted, and resources are set up for the UE in other networks, so that services in the current network are switched to other networks to ensure continuity of services.

 Embodiment 3:

 Referring to FIG. 3, a third embodiment of the present invention provides a service switching method, where a core network side triggers a separation process of a UE in a 3GPP network, where the method includes:

 B21 - B23 are the same as B11 - B13.

 B24. When receiving the bearer deletion request message, the PDN GW starts a timer, and waits for the UE to initiate a resource switch request message in the non-3GPP network.

 B25-B26, if the resource switching request of the UE is not received before the timer expires (the resource switching request is used to request to switch the service in the current network to the target network), the PDN GW deletes the service information of the saved UE, And releasing the resource allocated for the UE in the current network, sending an IP CAN session modification request message to the PCRF, informing the PCRF to delete the PCC rule corresponding to the resource; if the timer expires, the PDN GW receives the resource switching request of the UE, PDN GW Sending an IP CAN session modification request message to the PCRF, in which the access type change event may be reported, the PCRF generates an IPC session related PCC rule, and sends an IP CAN session modification response message to the PDN GW, the IP CAN session modification response message Carrying the PCC rule, the PDN GW reserves resources for the UE in the target network according to the PCC rule related to the IP CAN session, and switches the service to the target network;

 Or, a static PCC rule is configured on the PDN GW. If the resource switching request of the UE is not received before the timer expires, the PDN GW deletes the service information of the saved UE, and releases the resource allocated for the UE in the current network; Before receiving the resource switching request of the UE, the UE retains the service information of the UE, determines the target network to be switched according to the resource switching request of the UE, and generates a PCC rule, and reserves the UE in the target network according to the PCC rule. Resources, switch the business to the target network.

 B27. The PDN GW sends a delete bearer response message to the S-GW, and the S-GW sends a delete 7-load response message to the mobility management network element.

B28. The UE sends a separation accept message to the mobility management network element. If the UE is in multiple access mode The UE may choose to initiate a resource setup request on other networks to establish resources for the released service. In the third embodiment of the present invention, when the network side initiates the separation process, the mobility management network element sends the cause indication to the PDN GW. If the cause indication indicates that the UE needs to release the bearer resources in the current network due to the network side, the PDN GW starts. The timer, if the resource switching request sent by the UE is received before the timer expires, does not delete the service information of the UE, and establishes resources for the UE in other networks, so as to switch the services in the current network to other networks. To ensure the continuity of the business.

 The foregoing embodiment 2 of the present invention describes that the bearer resource of the UE in the 3GPP network needs to be released due to the network side. If the bearer resource of the UE in the non-3GPP network needs to be released due to the network side, the AAA server/HSS initiates the separation. In the process, the access gateway sends a registration revocation message or a proxy binding update message to the PDN GW, where the message carries indication information indicating that the UE needs to release the bearer resources of the UE in the non-3GPP network, and the PDN GW processes and Corresponding descriptions in the foregoing Embodiment 2 and Embodiment 3 are omitted, and details are not described herein again.

 It should be noted that the foregoing Embodiment 2 and Embodiment 3 are not limited to the separation process initiated by the core network side. During the process of the UE service, if the access network element/serving gateway initiates the bearer release process due to insufficient resources, the UE may not perform the service on the current network, and the PDN GW may also exchange the service with the PCRF. , or the PDN GW is configured with a static PCC rule to directly switch the data flow to the target network.

 In addition, in the process of the handover, if the UE should switch to the network side access network element/service gateway resource shortage, the UE initiates the bearer release process, and the UE service cannot be performed on the network. The PDN GW can also exchange services with the PCRF to switch services, or the PDN GW configures static PCC rules to directly switch data streams to other networks.

 Therefore, the present embodiment and the subsequent embodiments 4 and 5 are applicable to the resources allocated to the user due to the network side. The network side causes include: the AAA server/HSS initiates the separation process, and the access network element/service gateway The PDN GW may notify the PCRF of the lack of resources or the access control of the UE by the network side. The PCRF determines whether to switch the service to other networks and the switched network. The PDN GW may also decide.

 Embodiment 4:

Referring to FIG. 4, a fourth embodiment of the present invention provides a service switching method, where the access network side in the 3GPP network initiates a handover process or a bearer deletion process, and includes the following steps: Cll. The access network element initiates a handover procedure or the evolved base station eNodeB initiates a bearer deletion procedure. This step can be applied to the process of the UE in the process of the UE. The access network side releases the partial bearer of the UE due to insufficient resources, and some services of the UE are interrupted. The access network element initiates the handover process or the eNodeB initiates the deletion process.

 Alternatively, in the process of the handover, if the network access network element/service gateway resource to which the service should be switched is insufficient, the UE needs to release part of the bearer of the UE, and the access network element initiates a handover procedure or the eNodeB initiates a bearer deletion procedure.

 C12. The mobility management network element sends a delete bearer request message to the PDN GW by using the S-GW, where the message carries the indication information, where the indication information indicates that the bearer resource of the UE in the current network needs to be released due to the network side, and the indication information may be Is the Cause cause value.

 C13 - C14, the PDN GW determines whether the UE accesses in the multi-mode access mode, and if not, deletes the service information of the UE, releases the bearer resources of the UE, and ends the process; if yes, sends an IP CAN session modification request to the PCRF. A message, the message may carry indication information indicating that the current network cannot provide services for the UE. After receiving the IP CAN session modification message, the PCRF generates an IPC session-related PCC rule according to at least one of the current network situation, the UE's subscription data, and the operator policy, and sends the IP CAN session modification to the PDN GW. In the response message, the message carries the foregoing PCC rule. In this step, the PCRF recommendation can switch the service performed in the current network to the target network, that is, the service can be continued in the target network, and the IP CAN session modification response message is further The access type of the target network can be carried.

 Alternatively, the PDN GW determines that the service in the current network needs to be switched to the target network according to at least one of the information of the operator policy and the resource status of the other network, and the service information of the UE, and sends an IP CAN session modification message to the PCRF to request IPC session related PCC rules, PCRF generates IP CAN session related PCC rules are sent to the PDN GW, and then C15 is executed.

 Or, the static PCC rule is configured on the PDN GW, and the PDN GW determines that the service in the current network needs to be switched to the target network according to at least one of the information of the operator policy and the resource status of the other network and the service information of the UE, and Generate a PCC rule, reserve resources for the service in the target network according to the PCC rule, and after the service is switched to the target network, release the resources in the current network, and then continue to perform the PDN GW in the subsequent C15 to send and delete to the S-GW. Carry a response message.

C15. The PDN GW divides the UE into the target network according to the PCC rules related to the IP CAN session. With the new bearer resource, the delete bearer response message is sent to the S-GW, and the S-GW sends a delete bearer response message to the mobility management network element.

 The deletion message may carry the indication information "Resource Allocated" to indicate that the bearer resource has been reserved for the UE in other networks, and the delete bearer response message may also carry the target network that reserves the bearer resource for the UE. Incoming type, or a combination of the two in the response message.

 C16. The mobility management network element sends a bearer deletion request to the UE, where the bearer deletion request carries a “Resource Allocated” or an access type of a target network that reserves a bearer resource for the UE, or a combination of the two.

 C17. The UE sends a bearer deletion confirmation to the mobility management network element. If the bearer deletion request does not carry the access type of the target network that reserves the bearer resource for the UE, and the UE accesses in the multiple access mode, the UE may initiate a resource establishment request on other networks to establish resources for the service.

 If there is a BBERF in the network for which the UE reserves the bearer resource (if the non-3GPP network, the access gateway may be a BBERF), the PCRF sends a PCC rule related to the gateway control session to the BBERF, and the BBERF executes the PCC rule to initiate resource establishment. Process.

 In the fourth embodiment of the present invention, when the access network element initiates the handover process or the eNodeB initiates the bearer deletion process, the mobility management network element sends a cause indication to the PDN GW, if the cause indication indicates that the UE needs to release the current network due to the network side. When the bearer resource is in the middle, the PDN GW determines that the UE accesses the multi-access mode, does not delete the service information of the UE, and establishes resources for the UE in other networks, so as to switch the service transmitted in the current network to another network. In order to ensure the continuity of the business.

 Embodiment 5:

 Referring to FIG. 5, a fifth embodiment of the present invention provides a service switching method, where the access network side initiates a handover process or a bearer deletion process, and includes the following steps:

 C21. The access network element initiates a handover process or the evolved base station eNodeB initiates a bearer deletion process.

C22. The mobility management network element sends a bearer deletion request message to the PDN GW by using the S-GW, where the message carries the indication information, where the indication information indicates that the UE needs to release the bearer resource of the UE in the current network, and the indication information may be Is the Cause cause value.

C23 - C24, the PDN GW starts a timer, and initiates an IP CAN session modification request message to the PCRF. The PCRF recommends that the service in the current network needs to be switched to the target network, and the IP CAN session modification response message is sent to the PDN GW, and the IP CAN session is modified. The response message carries the target recommended by the PCRF. The access type of the standard network.

 In this step, the PDN GW may decide to switch the services in the current network to the target network by itself, without affecting the implementation of the present invention.

 The CDN and the PDN GW send a bearer deletion response message to the mobility management network element, where the bearer deletion response message carries the indication information, where the indication information indicates that the network side retains the service information of the UE, and the bearer deletion response message may further carry the target. The type of access to the network.

 C26. The mobility management network element sends a bearer deletion request message to the UE, where the bearer deletion request message carries the indication information and an access type of the target network.

 C27. The UE sends a bearer deletion response confirmation to the mobility management network element.

 If the UE receives the indication information indicating that the network side retains the service information of the UE, and the UE learns that the network side does not delete the service information of the UE, the UE may initiate a resource handover request, where the resource handover request is used to request to switch the service in the current network to In the target network.

 C28 - C29: If the resource switching request of the UE is not received before the timer expires, the PDN GW deletes the service information of the saved UE, and releases the resource allocated for the UE in the current network, and sends an IP CAN session modification request message to the PCRF. The PCRF is released to delete the PCC protocol corresponding to the resource. If the PDN GW receives the resource switching request of the UE before the timer expires, the PDN GW sends an IP CAN session modification request message to the PCRF, which can be reported in the message. In the type change event, the PCRF generates an IPC session-related PCC rule, and sends an IP CAN session modification response message to the PDN GW, where the IP CAN session modification response message carries the PCC rule, and the PDN GW is in the target network according to the PCC rule. For the UE to reserve resources in the target network, the service is switched to the target network. Alternatively, the static PCC rule is configured on the PDN GW. If the resource switching request of the UE is not received before the timer expires, the PDN GW deletes the saved UE. Service information, and release the resources allocated to the UE in the current network; if the timer expires before receiving The resource switching request of the UE retains the service information of the UE, determines the target network to be switched according to the resource switching request of the UE, and generates a PCC rule, and reserves resources for the UE in the target network according to the PCC rule, and switches the service. Go to the target network.

In the fifth embodiment of the present invention, when the access network element initiates the handover process or the eNodeB initiates the bearer deletion process, the mobility management network element sends the cause indication to the PDN GW, if the cause indication indicates that the UE needs to release the current network due to the network side. When the resource is being carried, the PDN GW starts the timer, if If the resource switching request sent by the UE is received before the timer expires, the service information of the UE is not deleted, and resources are set up for the UE in other networks, so that the service transmitted in the current network is switched to other networks to ensure the service. Continuity.

 Example 6:

 Referring to FIG. 6, a sixth embodiment of the present invention provides a service information control method, in which a mobility management network element learns an access mode of a UE accessing a network, and if the access mode is a multiple access mode access, the PDN GW is not notified. The service information of the UE is deleted. In this method, the mobility management network element can learn that the access mode of the UE accessing the network can be as follows:

 If the PDN GW determines that the UE accesses in the multiple access mode in the process of creating the bearer process (creating the default bearer process or creating a dedicated bearer process), the bearer response message is sent to the mobility management network element (the default is created). The bearer response or the creation of a dedicated bearer response carries the indication information "Multi Access Mode", and informs the mobility management network element UE to access in the multiple access mode. If the UE accesses the multi-access mode after the PDN connection is established on the network, the PDN GW initiates the bearer modification process (the default bearer modification process or the proprietary bearer modification process), and the bearer modification request message (default) The bearer modification request or the proprietary bearer modification request carries the indication information "Multi Access Mode", and informs the mobility management network element UE to access in the multiple access mode; if the UE is no longer accessed in the multiple access mode, the PDN GW The bearer modification process is initiated, and the indication information "Single Access Mode" is carried in the bearer modification request message (the default bearer modification request or the dedicated bearer modification request), and the mobility management network element UE is notified to access in the single access mode.

 The service information control method in this embodiment specifically includes the following steps:

 Dl, HSS initiates a separation process, the access network element initiates a handover process, or the eNodeB initiates a bearer deletion process.

 D2 - D3, the mobility management network element sends a bearer deletion request message to the serving gateway. If the UE accesses in the multiple access mode, the message carries the indication information, and the indication information notifies the serving gateway not to delete the bearer of the PDN GW; The UE is in the single access mode, and the message carries the indication information to notify the serving gateway to delete the bearer of the PDN GW. In the embodiment of the present invention, the UE accesses in the multiple access mode, so the message carries the notification service gateway. The indication information of the bearer of the PDN GW is deleted, and the service gateway sends a delete response to the mobility management network element.

Alternatively, the mobility management network element sends a bearer deletion request message to the serving gateway, and the bearer is deleted. The request message carries the indication information, where the indication information is used to indicate that the PDN GW retains the service information of the UE. The service gateway sends a bearer deletion request message to the PDN GW, where the message carries the indication information. If the UE accesses in the single access mode, the bearer deletion request message does not carry the indication information, or carries the indication information indicating that the bearer of the PDN GW is deleted. The embodiment of the present invention is that the UE accesses in the multiple access mode, so the bearer deletion request message carries the indication information indicating that the PDN GW retains the service information of the UE. After receiving the bearer deletion request message, the PDN GW deletes the bearer resource allocated to the UE in the current network.

 Further, the PDN GW may also re-establish resources for the UE in other networks. For the manner in which the PDN GW re-establishes resources for the UE, refer to the corresponding description in the second or third embodiment, and details are not described herein again.

 D4. The mobility management network element initiates a delete bearer request to the UE to request to delete the bearer in the current network.

 D5. The UE initiates a delete bearer determination to the mobility management network element. If it is a multi-access mode access, the UE may initiate a resource setup request on other networks to establish resources for the service.

 In the sixth embodiment of the present invention, the mobility management network element learns that the UE accesses the multiple access mode, and notifies the PDN GW not to delete the service information of the UE, so as to reserve resources for the UE in other networks according to the service information of the UE, and the current network. The business in the switch is switched to other networks to ensure the continuity of the service.

 Example 7:

 The seventh embodiment of the present invention provides a service information control method, in which the BBERF (the service gateway in the 3GPP network or the access gateway in the non-3GPP network) learns the access mode of the UE after accessing the network, and then notifies by the PCRF. The manner in which the PDN GW processes the service information of the UE. In this method, the BBERF learns that the access mode of the UE accessing the network may be as follows:

 When the UE accesses the multiple access mode, the PCRF carries the indication information in the re-authentication request message, where the indication information is used to notify the BBERF that the UE accesses in the multiple access mode, and if the UE cancels the multiple access mode access, The PCRF carries the indication information in the re-authentication request message to notify the BBERF that the UE accesses in a single access mode.

 The service information control method in this embodiment includes:

The BBERF in the current network may notify the PDN GW not to delete the service information of the UE, if the UE is to be detached from the current network, whether the 3GPP network or the non-3GPP network needs to be separated from the current network. Or the BBERF sends a message indicating that the service information of the UE on the PDN GW is not deleted, and the PCRF starts a timer to determine whether the message requesting the PCC rule sent by the PDN GW is received within the predetermined time period (the message requesting the PCC rule is due to the UE) If the other network initiates the resource establishment request, the PDN GW is notified to reserve the service information of the UE, and the PDN GW is notified to delete the service information of the UE.

 Or the BBERF sends a message indicating that the service information of the UE on the PDN GW is not deleted to the PCRF, and the PCRF directly informs the PDN GW to reserve the service information of the UE;

 Or, the BBERF sends a message indicating that the service information of the UE on the PDN GW is not deleted, and the PCRF notifies the PDN GW that the service resource in the current network is deleted, and the message carries the service information of the UE, to notify the PDN GW which service resources of the service are The PDN GW starts the timer, and determines whether the resource establishment request of the UE is received within the predetermined time period. If yes, the service information of the UE is reserved, otherwise the service information of the UE is deleted.

 In the seventh embodiment of the present invention, after the BBERF learns that the UE accesses in the multiple access mode, the PDN GW not directly deletes the service information of the UE or notifies the PDN GW not to delete the service information of the UE, so that the PDN GW is based on the service information of the UE. In other networks, resources are reserved for the UE, and services in the current network are switched to other networks to ensure continuity of services.

 Example 8:

 Referring to FIG. 7, a gateway device is provided in Embodiment 8 of the present invention, including:

 The receiving unit 701 is configured to receive indication information, where the indication information indicates that the resource of the user equipment UE in the current network needs to be released due to the network side;

 The first determining unit 702 is configured to determine whether the UE accesses in a multiple access mode.

 The switching unit 703 is configured to, when the UE accesses in the multiple access mode, switch the service transmitted by the UE in the current network to another network accessed by the UE according to the indication information.

 The switching unit 703 includes: a first sending unit, configured to send, to the PCRF, information indicating that the current network cannot provide a service for the UE; and a first receiving unit, configured to receive a PCC rule and a recommendation center delivered by the PCRF The access type of the other network used by the UE; and the first processing unit, configured to reserve resources for the UE in other networks according to the PCC rule, and switch the service to the other network.

Alternatively, the switching unit 703 includes: a determining unit, configured to determine another network to which the service needs to be handed over; a second processing unit, configured to generate a PCC rule, according to the PCC rule, in the other A resource is reserved for the UE in the network, and the service is switched to the other network.

 Alternatively, the switching unit 703 includes: a determining unit, configured to determine another network to which the service needs to be handed over; a second sending unit, configured to send a message requesting a PCC rule to the PCRF; and a second receiving unit, configured to receive the The PCC rule is sent by the PCRF. The third processing unit is configured to reserve resources for the UE in other networks according to the PCC rule, and switch the service to the other network.

 The gateway device also includes:

 And a third sending unit, configured to send, to the UE, indication information indicating that resources are reserved for the UE in other networks in the bearer deletion process.

 Or the gateway device further includes a fourth sending unit, a second determining unit, and a deleting unit, where the fourth sending unit sends, to the UE, indication information indicating that the network side retains the service information of the UE in the bearer deletion process, and triggers the The UE initiates the resource switching request; the second determining unit determines whether the resource switching request sent by the UE is received in the predetermined time period; and the deleting unit deletes the service information of the UE when the determining result of the second determining unit is negative; The switching unit 703 switches the service transmitted by the UE in the current network to the UE when the UE accesses in the multiple access mode, and the determination result of the second determining unit is YES. Other networks entered.

 In the eighth embodiment of the present invention, the gateway device receives the indication that the UE needs to release the bearer resource of the UE in the current network, and if the UE accesses the network in the multiple access mode, the service information of the UE is retained; In other networks, resources are set up for the UE to switch the services transmitted in the current network to other networks to ensure continuity of services.

 Example 9:

 Referring to FIG. 8, a network device is provided in Embodiment 9 of the present invention, including:

 The receiving unit 801 is configured to receive a message for notifying the UE of an access mode of accessing the network;

 The sending unit 802 is configured to: when the UE needs to release the bearer resource in the current network, when the UE accesses in the multiple access mode, send indication information indicating that the service information of the UE on the PDN GW is not deleted, The UE accesses the network in a single access mode, and sends indication information indicating that the service information of the UE on the PDN GW is deleted.

The network device is a mobility management network element, and the receiving unit 801 is configured to receive indication information that is sent by the PDN GW in the process of creating a bearer or in the process of modifying the bearer, indicating that the UE accesses the network in the multiple access mode. The sending unit 802 is configured to: when the UE needs to release the bearer resource in the current network, when the UE accesses in a multiple access mode, send a bearer deletion request message to the serving gateway, where the The bearer deletion request message carries the indication information indicating that the serving gateway does not delete the bearer of the PDN GW; or the bearer deletion request message carries the indication information indicating that the PDN GW reserves the service information of the UE.

 Or the network device is a BBERF, and the receiving unit 801 is configured to receive a re-authentication request message sent by the PCRF, where the re-authentication request message carries an access mode of the UE. The sending unit 802 is configured to send a bearer deletion request message to the PDN GW, where the bearer deletion request message carries the indication information that indicates that the PDN GW retains the service information of the UE; or the sending unit 802 is configured to send The PCRF sends indication information indicating that the PDN GW reserves the service information of the UE, so that the PCRF notifies the PDN GW to reserve the service information of the UE.

 After the network device in the ninth embodiment of the present invention learns that the UE accesses the network in the multiple access mode, when the UE needs to release the bearer resource of the UE in the current network, the network device sends an indication indicating that the service information of the UE on the PDN GW is not deleted. The information is such that the PDN GW retains the service information of the UE.

 Example 10:

 Referring to FIG. 9, a tenth embodiment of the present invention provides a user equipment, including:

 The receiving unit 901 is configured to receive a resource deletion message sent by the network side to the current network, and the sending unit 902 is configured to initiate a resource establishment request in another network after receiving the resource deletion message.

 The resource deletion message carries an access type of another network.

 The sending unit 902 is configured to initiate a resource establishment request in the other network after receiving the resource deletion message.

 After receiving the resource deletion message for the current network, the user equipment in the tenth embodiment of the present invention initiates a resource establishment request in another network, so that the PDN GW can reasonably determine whether to delete the service information of the UE.

 Example 11:

 Embodiment 11 of the present invention provides a network system, including: a PDN GW and a PCRF,

The PDN GW is configured to receive indication information, where the indication information indicates that the user equipment UE is required to release the resources of the user equipment in the current network, and when the UE accesses in the multiple access mode, the PCC sent by the PCRF is received. a rule, according to the PCC rule, a resource reserved for the UE in another network accessed by the UE, and a service related to the released resource is switched to another network accessed by the UE; And configured to generate a PCC rule, and send the PCC rule and the recommended access type of the other network used by the UE to the PDN GW. When the PDN GW in the network system provided by the embodiment of the present invention receives the resource indicating that the UE needs to be released in the current network due to the network side, if the UE accesses the network in the multiple access mode, the service in the current network is Switch to other networks to ensure business continuity.

 Example 12:

 Embodiment 12 of the present invention provides a network system, including: BBERF and PCRF,

 The BBERF is used to learn the access mode of the UE accessing the network. If the access mode is the multi-access mode access, when the UE needs to release the bearer resources of the current network, send an indication to the PCRF not to delete the PDN. The indication information of the service information of the UE on the GW;

 The PCRF is configured to notify the PDN GW to retain the service information of the UE after receiving the indication information indicating that the service information of the UE on the PDN GW is not deleted.

 The PCRF is further configured to: after receiving the indication information indicating that the service information of the UE on the PDN GW is not deleted, determine whether the message requesting the PCC rule sent by the PDN GW is received in the predetermined time period;

 The notification PDN GW keeps that the service information of the UE is sent when receiving the message requesting the PCC rule sent by the PDN GW within a predetermined time period.

 The BBERF in the network system provided by the embodiment of the present invention notifies the PDN GW that the PDN GW does not delete the service information of the UE, so that the PDN GW retains the service information of the UE.

 A person skilled in the art can understand that all or part of the steps of implementing the above embodiments may be performed by a program to instruct related hardware, and the program may be stored in a computer readable storage medium, such as a read only memory. Disk or disc, etc.

 The above description of the service information control method, related device, and system provided by the embodiments of the present invention is only for helping to understand the method and core idea of the present invention. Meanwhile, for those of ordinary skill in the art, The present invention is not limited by the scope of the present invention.

Claims

Claim  A service switching method, characterized in that it comprises:  Receiving indication information, where the indication information indicates that the resource of the user equipment UE in the current network needs to be released due to the network side;  When the UE accesses in the multiple access mode, the service related to the released resource is switched to another network accessed by the UE according to the indication information.  2. The method of claim 1 wherein  Switching the service related to the released resource to the other network accessed by the UE includes: the packet data network gateway PDN GW transmitting, to the policy and charging rule function point PCRF, information indicating that the current network cannot provide services for the UE ;  Receiving the policy and charging control PCC rules delivered by the PCRF and recommending access types of other networks used by the UE;  And according to the PCC rule, the UE is reserved in the other network, and the service is switched to the other network.  3. The method of claim 1 wherein:  Switching the service related to the released resource to other networks accessed by the UE includes: the PDN GW determining other networks to which the service needs to be handed over,  Reserving resources for the UE in the other network according to PCC rules generated by the PDN GW, and switching the service to the other network.  4. The method of claim 1 wherein:  Switching the service related to the released resource to the other network accessed by the UE includes: the PDN GW determines another network to which the service needs to be handed over, requests a PCC rule from the PCRF, and receives a PCC rule sent by the PCRF;  And according to the received PCC rule, the UE reserves resources in the other network, and switches the service to the other network.  The method according to any one of claims 2 to 4, wherein the method further comprises: the PDN GW transmitting, to the UE, indication information indicating that resources are reserved for the UE in the other network. . 6. The method according to claim 1, wherein the method further comprises: Before switching the service related to the released resource to another network accessed by the UE, the PDN GW determines whether a resource switching request sent by the UE is received within a predetermined time period, and if yes, performing the release with the The step of switching resource related services to other networks accessed by the UE.  The method according to claim 6, wherein the method further comprises: before determining whether the resource switching request sent by the UE is received in the predetermined time period, the method further includes:  The PDN GW sends indication information indicating that the network side retains the service information of the UE to the UE, and triggers the UE to initiate the resource handover request.  8. A method for controlling business information, comprising:  Obtaining an access mode of the UE accessing the network;  If the access mode is a multi-access mode access, when the UE needs to release the resources in the current network, the indication information indicating that the service information of the UE on the PDN GW is not deleted is sent, so that the PDN GW is reserved. The service information of the UE.  9. The method of claim 8 wherein:  Access modes for obtaining UE access to the network include:  The mobility management network element receives the access mode of the UE accessing the network that is sent by the PDN GW in the bearer process or in the modify bearer process.  10. The method of claim 9 wherein:  The indication information for sending the service information indicating that the UE is not deleted on the PDN GW includes:  The mobility management network element sends a bearer deletion request message to the serving gateway, where the bearer deletion request message carries the indication information indicating that the serving gateway does not delete the bearer of the PDN GW, or the bearer deletion request message carries the indication PDN GW reservation The indication information of the service information of the UE.  11. The method of claim 8 wherein:  Access modes for obtaining UE access to the network include:  The bearer binding and event reporting function point BBERF receives the re-authentication request message sent by the PCRF, and the re-authentication request message carries the access mode of the UE accessing the network.  12. The method of claim 11 wherein:  The indication information for sending the service information indicating that the UE is not deleted on the PDN GW includes:  The BBERF sends a bearer deletion request message to the PDN GW, where the bearer deletion request message carries indication information indicating that the PDN GW reserves the service information of the UE; or, The BBERF notifies the PDN GW to reserve the service information of the UE by using the PCRF.  13. A gateway device, comprising:  The receiving unit is configured to receive indication information, where the indication information indicates that the resource of the user equipment UE in the current network needs to be released due to the network side;  a first determining unit, configured to determine whether the UE accesses in a multiple access mode;  And a switching unit, configured to: when the UE accesses in the multiple access mode, switch the service related to the released resource to another network accessed by the UE according to the indication information.  14. The gateway device of claim 13, wherein  The switching unit includes:  a first sending unit, configured to send, to the PCRF, information indicating that the current network cannot provide services for the UE;  a first receiving unit, configured to receive a PCC rule delivered by the PCRF and an access type of another network recommended by the UE;  a first processing unit, configured to, according to the PCC rule, reserve resources for the UE in the other network, and switch the service to the other network;  Or,  The switching unit includes:  a determining unit, configured to determine other networks to which the service needs to be handed over;  a second processing unit, configured to generate a PCC rule, reserve resources for the UE in the other network according to the PCC rule, and switch the service to the other network;  Or,  The switching unit includes:  a determining unit, configured to determine other networks to which the service needs to be handed over;  a second sending unit, configured to send a message requesting a PCC rule to the PCRF;  a second receiving unit, configured to receive a PCC rule sent by the PCRF;  And a third processing unit, configured to, according to the PCC rule, reserve resources for the UE in the other network, and switch the service to the other network.  The gateway device according to claim 14, further comprising: And a third sending unit, configured to send, to the UE, indication information indicating that resources are reserved for the UE in the other network. The gateway device according to claim 13, further comprising: a second determining unit,  The second determining unit is configured to determine whether a resource switching request sent by the UE is received within a predetermined time period;  The switching unit is configured to: when the UE accesses in a multiple access mode, and the judgment result of the second determining unit is yes, switch the service related to the released resource to the UE to access Other networks.  The gateway device according to claim 16, further comprising:  And a fourth sending unit, configured to send, to the UE, indication information that indicates that the network side retains the service information of the UE, and triggers the UE to initiate the resource switching request.  18. A network device, comprising:  a receiving unit, configured to receive a message that informs the UE of an access mode of accessing the network;  And a sending unit, configured to: when the UE needs to release resources in the current network, when the UE accesses in a multiple access mode, send indication information indicating that the service information of the UE on the PDN GW is not deleted.  The network device according to claim 18, wherein the network device is a mobility management network element.  The receiving unit is configured to receive, by the PDN GW, an access mode of the UE accessing the network that is sent in the bearer process or in the modify bearer process.  20. The network device according to claim 19, wherein  The sending unit is configured to: when the UE needs to release the bearer resource in the current network, when the UE accesses in a multiple access mode, send a bearer deletion request message to the serving gateway, where the bearer deletion request message carries an indication The serving gateway does not delete the indication information of the bearer of the PDN GW; or the bearer deletion request message carries the indication information indicating that the PDN GW reserves the service information of the UE.  The network device according to claim 18, wherein the network device is a BBERF, and the receiving unit is configured to receive a re-authentication request message sent by a PCRF, where the re-authentication request message carries the UE Access mode for accessing the network.  22. The network device according to claim 21, wherein  The sending unit is configured to send a bearer deletion request message to the PDN GW, where the bearer deletion request message carries indication information indicating that the PDN GW reserves the service information of the UE; Or the sending unit, configured to send, to the PRCRF, a service that indicates that the PDN GW reserves the UE The indication information of the information causes the PCRF to notify the PDN GW to reserve the service information of the UE.  23. A user equipment, comprising:  a receiving unit, configured to receive a resource deletion message sent by the network side to the current network;  And a sending unit, configured to initiate a resource establishment request in another network after receiving the resource deletion message.  24. The user equipment of claim 23, wherein  The resource deletion message carries an access type of the other network;  The sending unit is configured to initiate a resource establishment request in the other network after receiving the resource deletion message.  25. A network system, comprising: a PDN GW and a PCRF,  The PDN GW is configured to receive indication information, where the indication information indicates that the user equipment UE is required to release the resources of the user equipment in the current network, and when the UE accesses in the multiple access mode, the PCC sent by the PCRF is received. a rule, according to the PCC rule, switching a service related to the released resource to another network accessed by the UE;  The PCRF is configured to generate a PCC rule and send it to the PDN GW.  26. The system of claim 25, wherein  The PCRF is further configured to send, to the PDN, an access type of another network used by the recommended UE. GW;  The PDN GW reserves resources for the UE in the other network, and switches the service to the other network.  27. A network system, comprising: BBERF and PCRF,  The BBERF is used to obtain an access mode of the UE accessing the network. If the access mode is a multi-access mode access, when the UE needs to release resources in the current network, send an indication to the PCRF not to delete the PDN GW. The indication information of the service information of the UE;  The PCRF is configured to notify the PDN GW to retain the service information of the UE after receiving the indication information indicating that the service information of the UE on the PDN GW is not deleted.  28. The network system of claim 27, wherein The PCRF is further configured to: after receiving the indication information indicating that the service information of the UE on the PDN GW is not deleted, whether the message requesting the PCC rule sent by the PDN GW is received in the predetermined time period; wherein the notification PDN The GW retains the service information of the UE by receiving the PDN within a predetermined time period. Sent by the GW when sending a message requesting a PCC rule