WO2011140707A1 - 业务流旁路方法、系统和策略与计费规则功能实体 - Google Patents

业务流旁路方法、系统和策略与计费规则功能实体 Download PDF

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Publication number
WO2011140707A1
WO2011140707A1 PCT/CN2010/072654 CN2010072654W WO2011140707A1 WO 2011140707 A1 WO2011140707 A1 WO 2011140707A1 CN 2010072654 W CN2010072654 W CN 2010072654W WO 2011140707 A1 WO2011140707 A1 WO 2011140707A1
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WIPO (PCT)
Prior art keywords
policy
function entity
user equipment
bearer
request message
Prior art date
Application number
PCT/CN2010/072654
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English (en)
French (fr)
Inventor
王玮
王爽
李岩
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2010/072654 priority Critical patent/WO2011140707A1/zh
Priority to CN201080001577.4A priority patent/CN102396201B/zh
Publication of WO2011140707A1 publication Critical patent/WO2011140707A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/56Provisioning of proxy services
    • H04L67/563Data redirection of data network streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/60Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • H04L67/63Routing a service request depending on the request content or context

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a service flow bypass method, system, and policy and charging rule function entity. Background technique
  • the network architecture of System Architecture Evolution includes: access network part and core network part.
  • the access network part includes the Global System for Mobile Communications Enhanced Data Rate for GSM Evolution Radio Access Network (hereinafter referred to as GERAN) and global terrestrial wireless access ( Universal Terrestrial Radio Access; hereinafter referred to as: UTRAN) and evolved UTRAN
  • GERAN Global System for Mobile Communications Enhanced Data Rate for GSM Evolution Radio Access Network
  • UTRAN Universal Terrestrial Radio Access
  • E-UTRAN (Evolved-UTRAN; hereinafter referred to as: E-UTRAN);
  • the core network part mainly includes Mobility Management Entity (hereinafter referred to as MME) and service gateway.
  • MME Mobility Management Entity
  • SGW Service Gateway
  • PGW Packet Data Network Gateway
  • PCRF Policy and Charging Rules Function
  • the selected IP Traffic Offload (hereinafter referred to as SIPTO) technology can make the service data flow not pass through the operator's core network, reducing the load on the core network.
  • the SIPTO scheme under the existing SAE architecture is based on the access point name (Access Point Name; APN) granularity.
  • the user equipment User Equipment; hereinafter referred to as UE
  • the MME determines whether to support the bypass according to the foregoing APN, that is, the MME bypasses all services under the APN, or does not bypass all services under the APN.
  • the embodiment of the present invention provides a service flow bypass method, a system, and a policy and charging rule function entity, so as to bypass the service that the user equipment initiates the bearer resource modification message, and implement the SIPTO based on the service level.
  • An embodiment of the present invention provides a service flow bypass method, including:
  • the policy and charging rule function entity receives the credit control request message sent by the policy and charging execution function entity, where the credit control request message carries the service information of the user equipment that is sent by the user equipment when the bearer resource modification message is initiated;
  • the policy and charging rule function entity determines whether to bypass the service flow corresponding to the service information of the user equipment according to the service information of the user equipment;
  • the policy and charging rule function entity obtains the first policy and charging control corresponding to the service information of the user equipment (Policy and Charging Control)
  • PCC Policy and Charging Control
  • the first PCC rule includes a selected Internet Protocol Service Local Bypass (SIPTO) indication
  • SIPTO Internet Protocol Service Local Bypass
  • the policy and charging rule function entity sends the first PCC rule to a local bypass node
  • the local bypass node creates a SIPTO bearer corresponding to the service flow according to the first PCC rule, or performs a modification or deletion operation on the existing SIPTO bearer according to the first PCC rule.
  • the embodiment of the present invention further provides a policy and charging rule function entity, including: a receiving module, configured to receive a credit control request message sent by a policy and charging execution function entity, where the credit control request message carries a user equipment to initiate a bearer The service information of the user equipment sent when the resource modification message is sent;
  • a determining module configured to determine, according to the service information of the user equipment, whether to bypass the service flow corresponding to the service information of the user equipment;
  • an obtaining module configured to obtain, after the determining module determines to bypass the service flow corresponding to the service information of the user equipment, the first policy and the meter corresponding to the service information of the user equipment received by the receiving module a fee control (PCC) rule, the first PCC rule including a selected Internet Protocol Service Local Bypass (SIPTO) indication;
  • PCC fee control
  • SIPTO Internet Protocol Service Local Bypass
  • a sending module configured to send the first PCC rule to a local bypass node, so that the local bypass node creates a SIPTO bearing corresponding to the service flow according to the first PCC rule Loading or deleting the existing SIPTO bearer according to the first PCC rule.
  • the embodiment of the present invention further provides a service flow bypass system, including: a local bypass node and a policy and charging rule function entity;
  • the policy and charging rule function entity is configured to receive a credit control request message sent by the policy and charging execution function entity, where the credit control request message carries the user equipment that is sent by the user equipment when the bearer resource modification message is initiated. And determining, according to the service information of the user equipment, whether to bypass the service flow corresponding to the service information of the user equipment; determining to bypass the service flow corresponding to the service information of the user equipment, a first policy and charging control (PCC) rule corresponding to service information of the user equipment, where the first PCC rule includes a selected Internet Protocol Service Local Bypass (SIPTO) indication; and sending the first PCC rule to The local bypass node;
  • PCC policy and charging control
  • the local bypass node is configured to create a SIPTO bearer corresponding to the service flow according to the first PCC rule, or modify or delete an existing SIPTO bearer according to the first PCC rule.
  • the policy and charging rule function entity After receiving the credit control request message sent by the policy and charging execution function entity, the policy and charging rule function entity determines the user equipment according to the service information of the user equipment carried in the credit control request message. After bypassing the service flow corresponding to the service information, obtaining a first PCC rule corresponding to the service information of the user equipment, the first PCC rule includes a SIPTO indication, and then the policy and charging rule function entity uses the first PCC rule
  • the local bypass node is configured to create a SIPTO bearer corresponding to the service flow according to the first PCC rule, or modify or delete the existing SIPTO bearer according to the first PCC rule. Thereby implementing the bearer resource repair for the user equipment
  • the service of the changed message is bypassed to implement SIPTO based on the service level.
  • Embodiment 1 is a flowchart of Embodiment 1 of a service flow bypass method according to the present invention
  • Embodiment 2 is a flowchart of Embodiment 2 of a service flow bypass method according to the present invention
  • Embodiment 3 is a flowchart of Embodiment 3 of a service flow bypass method according to the present invention.
  • Embodiment 4 is a flowchart of Embodiment 4 of a service flow bypass method according to the present invention.
  • Embodiment 5 is a flowchart of Embodiment 5 of a service flow bypass method according to the present invention.
  • Embodiment 6 is a flowchart of Embodiment 6 of a service flow bypass method according to the present invention.
  • Embodiment 7 is a flowchart of Embodiment 7 of a service flow bypass method according to the present invention.
  • FIG. 8 is a schematic structural diagram of Embodiment 1 of a policy and charging rule function entity according to the present invention
  • FIG. 9 is a schematic structural diagram of Embodiment 1 of a service flow bypass system according to the present invention.
  • FIG. 10 is a schematic structural diagram of Embodiment 2 of a service flow bypass system according to the present invention. detailed description
  • the service flow bypass method may include:
  • Step 101 The PCRF entity receives a credit control request message sent by a Policy and Charging Enforcement Function (PCEF) entity, where the credit control request message is sent by the user equipment when the bearer resource modification message is initiated.
  • PCEF Policy and Charging Enforcement Function
  • the PCEF entity is a policy enforcement point for policy and Internet Protocol (IP) bearer resource charging control.
  • IP Internet Protocol
  • the PCEF entity is located in the packet data gateway and the local bypass node.
  • Step 102 The PCRF entity determines whether to bypass the service flow corresponding to the service information of the user equipment according to the service information of the user equipment.
  • the PCRF entity may determine whether to bypass the service flow corresponding to the service information of the user equipment according to the service information of the user equipment, the pre-configured configuration information of the PCRF, and/or the operator policy.
  • Step 103 After determining to bypass the service flow corresponding to the service information of the user equipment, the PCRF entity obtains a first PCC rule corresponding to the service information of the user equipment, where the first PCC rule includes a SIPTO indication.
  • Step 104 The PCRF entity sends the foregoing first PCC rule to the local bypass node, so that the local bypass node creates a SIPTO bearer corresponding to the service flow according to the first PCC rule, or pairs the existing one according to the first PCC rule. SIPTO bearer to modify or delete Operation.
  • the PCRF entity may also send the process transaction identifier to the local bypass node, where the process transaction identifier is an association identifier assigned by the user equipment, and is used to create, modify, or delete the SIPTO bearer initiated by the local bypass node.
  • the process is associated with the bearer resource modification message flow initiated by the user equipment, and after receiving the process transaction identifier, the local bypass node may associate the SIPTO bearer with the bearer resource modification message flow initiated by the user equipment according to the process transaction identifier. .
  • the local bypass node may be a local packet data gateway (Local PGW; hereinafter referred to as L-PGW), or may be another entity that can implement the bypass function.
  • L-PGW local packet data gateway
  • the specific form is not limited.
  • the PCRF entity may receive a credit control request message sent by the packet data gateway, where the credit control request message is after the packet data gateway receives the bearer resource command message sent by the mobility management entity through the serving gateway.
  • the bearer resource command message is sent after the mobility management entity receives the bearer resource modification message sent by the user equipment.
  • the PCRF entity may send the first PCC rule to the local bypass node by using the re-authentication request message.
  • the PCRF entity may send the process transaction identifier to the local bypass node by using the re-authentication request message, so that the local bypass node sends the SIPTO bearer and the bearer resource modification message initiated by the user equipment according to the process transaction identifier. The process is associated.
  • the PCRF entity may receive a credit control request message sent by the packet data gateway, where the credit control request message is a bearer resource command message sent by the packet data gateway by the mobility management entity through the serving gateway. After the transmission, the bearer The resource command message is sent after the mobility management entity receives the bearer resource modification message sent by the user equipment.
  • the PCRF entity may receive the session establishment request message sent by the local bypass node, and the session establishment response message A PCC rule is sent to the local bypass node.
  • the local bypass node may receive the process transaction identifier sent by the mobility management entity through the session establishment request message, and send the SIPTO bearer and the bearer initiated by the user equipment according to the process transaction identifier.
  • the resource modification message flow is associated.
  • the PCRF entity may further send the SIPTO indication to the packet data gateway, so that the packet data gateway sends a bearer resource failure indication to the serving gateway, and the serving gateway sends the bearer resource failure indication to the mobility management.
  • the entity; the cause value in the foregoing bearer resource failure indication indicates that the service flow is bypassed.
  • the PCRF entity may receive a credit control request message sent by the local bypass node, where the local bypass node receives the bearer resource command message sent by the mobility management entity. Transmitted; In this implementation, the PCRF entity may send the first PCC rule to the local bypass node through a credit control response message. In this implementation, the mobility management entity may send the bearer resource command message to the serving gateway and the local bypass node in parallel before the PCRF entity receives the credit control request message.
  • the PCRF entity may obtain a second PCC rule corresponding to the service information of the user equipment, where the second PCC rule includes The SIPTO indication or the second PCC rule does not include the SIPTO indication; then, the PCRF entity may send the second PCC rule to the local bypass node, so that the local bypass node sends a bearer resource failure indication to the mobility management entity, the bearer The resource failure indication carries the second PCC rule described above.
  • the PCRF entity may receive a credit control request message sent by the local bypass node, and the credit control request message is sent after the local bypass node receives the bearer resource command message sent by the mobility management entity; and then, the PCRF entity may pass The credit control response message sends the second PCC rule to the local bypass node.
  • the local bypass node sends a bearer resource failure indication command message to the mobility management entity; or, before the PCRF entity receives the credit control request message sent by the PCEF entity, the mobility management entity may send the bearer resource command message to the parallel Service gateway and local bypass node.
  • the PCRF entity determines to bypass the service flow corresponding to the service information of the user equipment according to the service information of the user equipment carried in the credit control request message.
  • the PCRF entity sends the first PCC rule to the local bypass node, where the local bypass node is configured according to the A PCC rule creates a SIPTO bearer corresponding to the foregoing service flow, or performs a modification or deletion operation on the existing SIPTO bearer according to the first PCC rule. Therefore, the service for initiating the bearer resource modification message by the user equipment is bypassed, and the service level is implemented.
  • FIG. 2 is a flowchart of Embodiment 2 of a service flow bypass method according to the present invention.
  • a local bypass node is used as an L-PGW as an example for description.
  • the traffic flow bypass method may include:
  • Step 201 The UE sends a bearer resource modification message to the MME.
  • the bearer resource modification message The Linked Evolved Packet System Bearer Identifier (LBI), the Procedure Transaction Identifier (PTI), and the Quality of Service (QoS) , Traffic Aggregate Description (hereinafter referred to as: TAD) and Protocol Configuration Options (hereinafter referred to as PCO).
  • LBI Linked Evolved Packet System Bearer Identifier
  • PTI Procedure Transaction Identifier
  • QoS Quality of Service
  • TAD Traffic Aggregate Description
  • PCO Protocol Configuration Options
  • the TAD and the PCO are the service information of the UE.
  • the bearer resource modification message may further carry an Evolved Packet System Bearer Identity (hereinafter referred to as an EPS Bearer ID).
  • EPS Bearer ID Evolved Packet System Bearer Identity
  • the TAD indicates the operation of the bearer resource modification message request, including adding, modifying, or deleting the packet filter.
  • the PTI is an association identifier assigned by the UE, and is used to create, modify, or delete the SIPTO bearer initiated by the L-PGW.
  • the bearer resource modification message flow initiated by the UE is associated; the QoS refers to the service quality information requested by the bearer resource modification message; the PCO is used to transmit some application layer parameters between the UE and the PGW, and transparently transmit to the SGW and the MME.
  • the bearer resource modification message needs to carry the LBI, where the LBI is used to identify which PDN connection the requesting bearer is associated with, and the LBI is the identifier of the default bearer;
  • the bearer resource modification message needs to carry the EPS bearer ID.
  • Step 202 The MME sends a bearer resource command (Bearer Resource Command) message to the SGW, where the bearer resource command message carries LBI, PTI, QoS, TAD, and PCO.
  • Bearer Resource Command Bearer Resource Command
  • Step 203 The SGW sends a bearer resource command message to the PGW, where the bearer resource command message carries LBI, PTI, QoS, TAD, and PCO.
  • Step 204 The PGW sends a credit control request to the PCRF entity (Credit Control) Request; hereinafter referred to as: CCR) message, the CCR message carries the information of the packet filter and the operation information of the packet filter and the QoS information, and also carries the PTI.
  • CCR PCRF entity
  • This CCR message is used to request PCC rules.
  • the information of the packet filter and the operation information for the packet filter and the QoS information are converted from the QoS and the TAD by the PGW.
  • Step 205 After determining, according to the service information of the UE, the PCRF entity bypasses the service flow corresponding to the service information of the UE, and obtains a first PCC rule corresponding to the service information of the UE, where the first PCC rule includes a SIPTO indication.
  • the SIPTO indication is used to notify the network side to establish a SIPTO bearer for the foregoing service flow or to notify the network side to modify or delete the existing SIPTO bearer; then, the PCRF entity sends a credit control response to the PGW (Card Control Answer; The message, the CCA message carries the SIPTO indication above.
  • the service information of the UE includes QoS and TAD.
  • Step 206 After receiving the SIPTO indication, the PGW sends a Bearer Resource Failure Indication to the SGW, where the cause value in the resource failure indication indicates that the service flow is bypassed, and is used to indicate that the service flow is established.
  • the SIPTO carries or modifies or deletes the existing SIPTO bearer.
  • the cause value in the bearer resource failure indication may be set to a SIPTO indication to indicate that the foregoing service flow is bypassed; of course, the embodiment of the present invention is not limited thereto, and the bearer resource failure indication may be set by other manners.
  • the reason value in the embodiment of the present invention is not limited to the setting manner of the cause value in the bearer resource failure indication.
  • Step 207 The SGW sends an indication of a resource failure to the MME, where the resource failure indication carries the SIPTO indication.
  • the MME After receiving the bearer resource failure indication sent by the SGW, the MME waits for the L-PGW to initiate Create, modify, or delete SIPTO hosted operations.
  • Step 208 The PCRF entity sends a Re-Auth Request (RAR) message to the L-PGW, where the RAR message carries the first PCC rule and the PTI.
  • the PTI is used to associate the process of creating, modifying, or deleting a SIPTO bearer initiated by the L-PGW with a bearer resource modification message flow initiated by the UE.
  • the first PCC rule includes a SIPTO indication, where the SIPTO indication is used to instruct the L-PGW to perform a bypass operation on the service flow.
  • the first PCC rule may further include service flow detection information, QoS, and the like. .
  • the PCRF entity has established a session with the L-PGW at the time of initial attachment, so the PCRF entity may send the RAR message here.
  • the address of the L-PGW may be sent by the MME to the SGW at the initial attachment, and then sent by the SGW to the PGW, and then sent by the PGW to the PCRF entity.
  • the L-PGW may also initiate a session to the PCRF entity by the L-PGW. Send the address of the L-PGW to the PCRF entity.
  • step 208 may be performed after step 205, before step 206; or after step 207; or may be performed in parallel with step 206 and step 207.
  • Step 209 The L-PGW sends a Create/Update/Delete Bearer Request message to the MME, where the Create, Modify, or Delete Bearer Request message carries the PTI, QoS, and service flow template (Traffic Flow Template; Abbreviation: TFT), used to create a SIPTO payload corresponding to the above service flow, or to modify or delete an existing SIPTO bearer.
  • TFT Traffic Flow Template
  • Step 210 The MME initiates a process of creating, modifying, or deleting a wireless side SIPTO to the wireless side.
  • Step 211 ⁇ Send a Create/Update/Delete Bearer Response message to the L-PGW, and create a SIPTO bearer between the evolved NodeB (evolved NodeB; eNB) and the L-PGW. Or modify or delete the existing SIPTO bearer between the eNB and the L-PGW.
  • eNB evolved NodeB
  • L-PGW L-PGW
  • Step 212 The L-PGW sends a Re-Auth Answer (RAA) message to the PCRF entity to indicate whether the resource allocation is successful.
  • RAA Re-Auth Answer
  • the foregoing embodiment implements bypassing the service that the UE initiates the bearer resource modification message, and implements the SIPTO based on the service level.
  • FIG. 3 is a flowchart of Embodiment 3 of a service flow bypass method according to the present invention.
  • a local bypass node is used as an L-PGW as an example for description.
  • the traffic flow bypass method may include:
  • Step 301 The UE sends a bearer resource modification message to the MME, where the bearer resource modification message carries the LBI, the QoS, the TAD, and the PCO.
  • the QoS and the TAD are service information of the UE.
  • Step 302 The MME sends a bearer resource command message to the SGW, where the bearer resource command message carries LBI, QoS, TAD, and PCO.
  • Step 303 The SGW sends a bearer resource command message to the PGW, where the bearer resource command message carries LBI, QoS, TAD, and PCO.
  • Step 304 The PGW sends a CCR message to the PCRF entity, where the CCR message carries information of the packet filter and operation information and QoS information for the packet filter. This CCR message is used to request PCC rules. The information of the packet filter and the operation information for the packet filter and the QoS information are converted from the QoS and the TAD by the PGW.
  • Step 305 After determining, by using the service information of the UE, the PCRF entity to bypass the service flow corresponding to the service information of the UE, obtain a first PCC rule corresponding to the service information of the UE, where the first PCC rule includes a SIPTO indication.
  • the SIPTO indication is used to notify the network side to establish a SIPTO bearer for the service flow or to notify the network side to modify or delete the existing SIPTO bearer. Then, the PCRF entity sends a CCA message to the PGW, and the CCA message carries the SIPTO indication.
  • the service information of the UE includes QoS and TAD.
  • Step 306 After receiving the SIPTO indication, the PGW sends a bearer resource failure indication to the SGW, where the cause value in the bearer resource failure indication indicates that the service flow is bypassed, and is used to indicate that the SIPTO bearer is established for the service flow.
  • the cause value in the bearer resource failure indication may be set to a SIPTO indication to indicate that the foregoing service flow is bypassed; of course, the embodiment of the present invention is not limited thereto, and the bearer resource failure indication may be set by other manners.
  • the reason value in the embodiment of the present invention is not limited to the setting manner of the cause value in the bearer resource failure indication.
  • Step 307 The SGW sends a 7
  • Step 308 the MME selects the L-PGW, and sends a session establishment request message to the selected L-PGW, where the session establishment request message carries the PTI and the default bearer identifier (EPS Bearer Identity for default bearer).
  • the default bearer identifier is sent to the MME when the L-PGW creates a SIPTO bearer, so that the MME associates the created SIPTO bearer with the default bearer.
  • the PTI is used to associate the process of creating a SIPTO bearer initiated by the L-PGW with the bearer resource modification message flow initiated by the UE.
  • Step 309 The L-PGW sends a session establishment request message to the PCRF entity, where the session is established.
  • the request message carries the IP address of the UE, so that the PCRF entity associates an IP-Connectivity Access Network (IP-CAN) session with the session corresponding to the session establishment request message.
  • IP-CAN IP-Connectivity Access Network
  • Step 310 The PCRF entity sends a session establishment response message to the L-PGW, where the session establishment response message carries the first PCC rule.
  • Step 311 The L-PGW sends a Create Bearer Request message to the MME, where the Create Bearer Request message is used to instruct the MME to create a SIPTO bearer, where the Create Bearer Request message carries information such as PTI, QoS, TFT, and default identifier.
  • Step 312 The MME initiates a process of creating a wireless side SIPTO to the wireless side.
  • Step 313 The MME sends a Create Bearer Response message to the L-PGW, and creates a SIPTO bearer between the eNB and the L-PGW.
  • the foregoing embodiment implements bypassing the service that the UE initiates the bearer resource modification message, and implements the SIPTO based on the service level.
  • a local bypass node is used as an L-PGW as an example for description.
  • the traffic flow bypass method may include:
  • Step 401 The UE sends a bearer resource modification message to the MME, where the bearer resource modification message carries an LBI, a PTI, an EPS Bearer ID, a QoS, a TAD, and a PCO.
  • the QoS and the TAD are service information of the UE; and the EPS Bearer ID indicates that the modification or deletion operation is performed on the existing bearer.
  • Step 402 The MME sends a bearer resource command message to the L-PGW, where the bearer resource command message carries an EPS Bearer ID, a PTI, a QoS, a TAD, and a PCO.
  • Step 403 The L-PGW sends a session modification request message to the PCRF entity, where the session modification request message carries the information of the packet filter and the operation information of the packet filter and the QoS information, where the PTI is also carried.
  • the session modification request message is a type of CCR message for requesting a PCC rule.
  • the information of the packet filter and the operation information for the packet filter and the QoS information are converted from the QoS and the TAD by the L-PGW.
  • Step 404 The PCRF entity sends a session modification response message to the L-PGW, where the session modification response message carries a first PCC rule corresponding to the service information of the UE, where the first PCC rule includes a SIPTO indication.
  • the service information of the UE includes QoS and TAD.
  • Step 405 The L-PGW sends a create, modify, or delete bearer request message to the MME according to the first PCC rule sent by the PCRF entity, to create a SIPTO bearer for the service flow corresponding to the service information of the UE, or to the existing SIPTO.
  • the bearer is modified or deleted.
  • Step 406 The MME sends a corresponding create, modify, or delete bearer request message to the wireless side, and initiates an operation of creating, modifying, or deleting the corresponding wireless side SIPTO bearer.
  • Step 407 The MME sends a create, modify, or delete bearer response message corresponding to the create, modify, or delete bearer request message to the L-PGW.
  • the foregoing embodiment implements bypassing the service that the UE initiates the bearer resource modification message, and implements the SIPTO based on the service level.
  • FIG. 5 is a flowchart of Embodiment 5 of a service flow bypass method according to the present invention.
  • a local bypass node is used as an L-PGW as an example for description.
  • the traffic flow bypass method may include:
  • Step 501 The UE sends a bearer resource modification message to the MME, where the bearer resource modification message is sent.
  • the QoS and the TAD are service information of the UE.
  • Step 502 The MME sends a bearer resource command message to the L-PGW, where the bearer resource command message carries LBI, PTI, QoS, TAD, and PCO.
  • Step 503 The L-PGW sends a session modification request message to the PCRF entity, where the session modification request message carries the information of the packet filter and the operation information of the packet filter and the QoS information, where the PTI is also carried.
  • the session modification request message is a type of CCR message used to request PCC rules.
  • the information of the packet filter and the operation information of the packet filter and the QoS information are converted from the QoS and the TAD by the L-PGW.
  • Step 504 The PCRF entity determines, according to the service information of the UE, that the service flow corresponding to the service information of the UE is not bypassed, and obtains a second PCC rule corresponding to the service information of the UE, where the second PCC rule carries the non-SIPTO The indication or the second PCC rule does not carry the SIPTO indication, wherein the second PCC rule indicates that a non-SIPTO bearer is created for the UE, or the existing non-SIPTO bearer is modified or deleted; then, the PCRF entity can pass The session modification response message sends the second PCC rule to the L-PGW.
  • Step 505 L-PGW sends a resource contained MME ⁇ failure indication that the 7
  • the MME After receiving the bearer resource failure indication sent by the L-PGW, the MME waits for the PGW to initiate an operation of creating, modifying, or deleting the non-SIPTO bearer.
  • Step 506 The PCRF entity sends a RAR message to the PGW, where the RAR message carries the PTI and the second PCC rule.
  • Step 507 The PGW sends an RAA message to the PCRF entity.
  • Step 508 The PGW sends a create, modify, or delete bearer request message to the SGW according to the foregoing second PCC rule.
  • Step 509 The SGW sends a create, modify, or delete bearer request message to the MME.
  • Step 510 The MME initiates, by the wireless side, a corresponding operation of creating, modifying, or deleting a non-SIPTO bearer.
  • Step 511 The MME sends a create, modify, or delete bearer response message to the SGW.
  • FIG. 6 is a flowchart of Embodiment 6 of the service flow bypass method according to the present invention.
  • the local bypass node is used as an example for the L-PGW.
  • the traffic flow bypass method may include:
  • Step 601 The UE sends a bearer resource modification message to the MME.
  • Step 602 The MME sends a bearer resource command message to the L-PGW.
  • Step 603 The L-PGW sends a session modification request message to the PCRF entity, where the session modification request message carries the requested QoS.
  • Step 604 The PCRF entity sends a session modification response message to the L-PGW, where the session modification response message carries a non-SIPTO indication.
  • the non-SIPTO indication is used to indicate that a non-SIPTO bearer is created for the UE, or that the existing non-SIPTO bearer is modified or deleted.
  • Step 605 The L-PGW sends a resource failure indication to the MME, where the 7- bearing resource failure indication carries the non-SIPTO indication.
  • the non-SIPTO indication is used to indicate that a non-SIPTO bearer is created for the UE, or a modification or deletion operation is performed on the existing non-SIPTO bearer.
  • Step 606 The MME sends a bearer resource command message to the SGW.
  • Step 607 The SGW sends a bearer resource command message to the PGW.
  • Step 608 The PGW sends a CCR message to the PCRF entity.
  • Step 609 The PCRF entity sends a CCA message to the PGW, where the CCA message carries the second PCC rule.
  • Step 610 The PGW sends a create, modify, or delete bearer request message to the SGW according to the foregoing second PCC rule.
  • Step 611 The SGW sends a create, modify, or delete bearer request message to the MME.
  • Step 612 The MME initiates a corresponding operation of creating, modifying, or deleting a non-SIPTO bearer to the wireless side.
  • Step 613 The MME sends a create, modify, or delete bearer response message to the SGW.
  • FIG. 7 is a flowchart of Embodiment 7 of a service flow bypass method according to the present invention.
  • a local bypass node is used as an L-PGW as an example for description.
  • the traffic flow bypass method may include:
  • Step 701 The UE sends a resource modification message to the MME.
  • step 702a to step 710 are performed; when the service flow bypass is required, step 71a to step 718 are performed.
  • Step 702a The MME sends a bearer resource command message to the L-PGW.
  • Step 703a The L-PGW sends a session modification request message to the PCRF entity, where the session modification request message carries the requested QoS.
  • Step 704a The PCRF entity sends a session modification response message to the L-PGW, where the session modification response message carries a non-SIPTO indication.
  • the non-SIPTO indication is used to indicate that a non-SIPTO bearer is created for the UE, or a modification or deletion operation is performed on the existing non-SIPTO bearer.
  • Step 705a The L-PGW sends a 7-bearing resource failure indication to the MME, where the 7- bearing resource failure indication carries the non-SIPTO indication.
  • the non-SIPTO indication is used to indicate that a non-SIPTO bearer is created for the UE, or a modification or deletion operation is performed on the existing non-SIPTO bearer.
  • the MME After receiving the indication of the failure of the bearer resource, the MME waits for the PGW to initiate an operation of creating, modifying, or deleting the non-SIPTO bearer.
  • Step 702b The MME sends a bearer resource command message to the SGW.
  • Step 703b The SGW sends a bearer resource command message to the PGW.
  • Step 704b The PGW sends a CCR message to the PCRF entity.
  • Step 705b The PCRF entity sends a CCA message to the PGW, where the CCA message carries the second PCC rule.
  • Step 706b The PGW sends a create, modify, or delete bearer request message to the SGW according to the foregoing second PCC rule.
  • Step 707b The SGW sends a create, modify, or delete bearer request message to the MME.
  • steps 702a to 705a are performed in parallel with steps 702b to 707b.
  • Step 708 The MME initiates a corresponding operation of creating, modifying, or deleting a non-SIPTO bearer to the wireless side.
  • Step 709 The MME sends a create, modify, or delete bearer response message to the SGW.
  • Step 710 The SGW sends a create, modify, or delete bearer response message to the PGW.
  • Step 711 a The MME sends a bearer resource command message to the L-PGW.
  • Step 712a the L-PGW sends a session modification request message to the PCRF entity, where the session modification request message carries the requested QoS.
  • Step 713a The PCRF entity sends a session modification response message to the L-PGW, where the session is repaired.
  • the change response message carries the SIPTO indication.
  • the SIPTO indication is used to indicate that a SIPTO bearer is created for the UE, or that the existing SIPTO bearer is modified or deleted.
  • Step 714a the L-PGW sends a create, modify or delete request message to the MME.
  • Step 711b The MME sends a bearer resource command message to the SGW.
  • Step 712b The SGW sends a bearer resource command message to the PGW.
  • Step 713b The PGW sends a CCR message to the PCRF entity.
  • Step 714b The PCRF entity sends a CCA message to the PGW, where the CCA message carries a SIPTO indication.
  • Step 715b The PGW sends a 7
  • Step 716b The SGW sends an indication of a resource failure to the MME, where the resource failure indication carries the SIPTO indication.
  • step 71 la ⁇ step 714a is performed in parallel with step 71 lb ⁇ step 716b.
  • Step 717 The MME initiates, by the wireless side, the operation of creating, modifying, or deleting the SIPTO.
  • Step 718 The MME sends a create, modify, or delete bearer response message to the SGW.
  • the foregoing embodiment implements bypassing the service that the UE initiates the bearer resource modification message, or bypasses the service that the UE initiates the bearer resource modification message, and implements the SIPTO based on the service level.
  • the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
  • FIG. 8 is a schematic structural diagram of Embodiment 1 of a policy and charging rule function entity according to the present invention.
  • the policy and charging rule function entity provided in this embodiment may implement the process of the embodiment shown in FIG. 1 of the present invention, as shown in FIG.
  • the policy and charging rule function entity may include: a receiving module 81, a determining module 82, an obtaining module 83, and a sending module 84.
  • the receiving module 81 is configured to receive a credit control request message sent by the policy and charging execution function entity, where the credit control request message carries the service information of the user equipment that is sent by the user equipment when the bearer resource modification message is initiated.
  • the billing execution function entity is a policy enforcement point for policy and IP bearer resource charging control.
  • the policy and charging execution function entity is located in the packet data gateway and the local bypass node.
  • the determining module 82 is configured to determine, according to the service information of the user equipment, whether to bypass the service flow corresponding to the service information of the user equipment. Specifically, the determining module 82 may combine the pre-configured service according to the service information of the user equipment. The configuration information of the policy and charging rule function entity and/or the operator policy determines whether to bypass the service flow corresponding to the service information of the user equipment.
  • the obtaining module 83 is configured to obtain, after the determining module 82 determines to bypass the service flow corresponding to the service information of the user equipment, the first PCC rule corresponding to the service information of the user equipment received by the receiving module 81, where the first PCC rules include SIPTO indications;
  • the sending module 84 is configured to send the first PCC rule to the local bypass node, so that the local bypass node creates a SIPTO bearer corresponding to the service flow according to the first PCC rule, or performs an existing SIPTO bearer according to the first PCC rule. Make modifications or deletes.
  • the sending module 84 may also send the process transaction identifier to the local bypass node, where the process transaction identifier is an association identifier assigned by the user equipment, and is used to create, modify, or delete the SIPTO initiated by the local bypass node.
  • the bearer process is associated with the bearer resource modification message flow initiated by the user equipment. After receiving the process transaction identifier, the local bypass node may associate the SIPTO bearer with the bearer resource modification message flow initiated by the user equipment according to the process transaction identifier. .
  • the receiving module 81 may receive a credit control request message sent by the packet data gateway, where the credit control request message is received by the packet data gateway by the mobility management entity through the serving gateway.
  • the bearer resource command message is sent after the mobility management entity receives the bearer resource modification message sent by the user equipment.
  • the sending module 84 may send the first PCC rule and the re-authentication request message.
  • the process transaction identifier is sent to the local bypass node; or, the sending module 84 may send the first PCC rule to the local bypass node by using the session establishment response message after the receiving module 81 receives the session establishment request message sent by the local bypass node. .
  • the sending module 84 may further send the SIPTO indication to the packet data gateway, so that the packet data gateway sends a bearer resource failure indication to the serving gateway, and the serving gateway sends the bearer resource failure indication to the mobility management entity;
  • the cause value in the resource failure indication indicates that the above traffic flow is bypassed.
  • the receiving module 81 may receive a credit control request message sent by the local bypass node, where the local control node receives the bearer resource command message sent by the mobility management entity. Then sent; at this time, the sending module 84 may send the first PCC rule to the local bypass node by using a credit control response message.
  • the obtaining module 83 may obtain a second PCC rule corresponding to the service information of the user equipment, where The second PCC rule includes a non-SIPTO indication or the second PCC rule does not include a SIPTO indication; then, the sending module 84 can also send the second PCC rule to the local bypass node, so that the local bypass node sends the bearer to the mobility management entity.
  • the resource failure indication indicates that the bearer resource failure indication carries the foregoing second PCC rule.
  • the receiving module 81 may receive a credit control request message sent by the local bypass node, where the local control node sends the bearer resource command message sent by the mobility management entity, and then sends the module 84.
  • the second PCC rule can be sent to the local bypass node via a credit control reply message.
  • the determining module 82 determines the pair according to the service information of the user equipment carried in the credit control request message.
  • the obtaining module 8 3 obtains a first PCC rule corresponding to the service information of the user equipment, where the first PCC rule includes a SIPTO indication, and then the sending module 84
  • the first PCC rule is sent to the local bypass node, and the local bypass node creates a SIPTO bearer corresponding to the service flow according to the first PCC rule, or modifies or deletes the existing SIPTO bearer according to the first PCC rule. operating. Therefore, the service for initiating the bearer resource modification message by the user equipment is bypassed, and the SIPTO based on the service level is implemented.
  • FIG. 9 is a schematic structural diagram of Embodiment 1 of a service flow bypass system according to the present invention.
  • the service flow bypass system may include: a policy and charging rule function entity 91 and a local bypass node 92;
  • the policy and charging rule function entity 91 is configured to receive a credit control request message sent by the policy and charging execution function entity, where the credit control request message carries the service of the user equipment that is sent by the user equipment when the bearer resource modification message is initiated.
  • the local bypass node 92 is configured to create a SIPTO bearer corresponding to the foregoing service flow according to the first PCC rule, or modify or delete the existing SIPTO bearer according to the first PCC rule.
  • the foregoing service flow bypass system bypasses the service that the user equipment initiates the bearer resource modification message, and implements the SIPTO based on the service level.
  • the service flow bypass system may include: a UE 1001, an eNB 1002, an MME 1003, a PCRF entity 1004, an SGW 1005, and a PGW 1006. And L-PGW 1007.
  • the L-PGW 1007 is a local bypass node, and the function of the L-PGW 1007 is the same as that of the local bypass node 92 in the embodiment shown in FIG. 9 of the present invention, and details are not described herein again.
  • the function of the PCRF entity 1004 is the same as that of the policy and charging rule function entity 91 in the embodiment shown in FIG. 9 of the present invention, and details are not described herein again.
  • the PCRF entity 1004 can also adopt the strategy of the embodiment shown in FIG. 8 of the present invention.
  • the charging rule function entity is implemented; In this embodiment, the UE 1001, the eNB 1002, the MME 1003, the PCRF entity 1004, the SGW 1005, the PGW 1006, and the L-PGW 1007 may perform interaction according to the flow of the embodiment shown in FIG. 2 to FIG. 7 of the present invention. Narration.
  • the foregoing service flow bypass system bypasses the service that the user equipment initiates the bearer resource modification message, and implements the SIPTO based on the service level.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the embodiment description, or the corresponding changes may be located in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

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Description

业务流旁路方法、 系统和策略与计费规则功能实体 技术领域
本发明涉及通信技术领域, 尤其涉及一种业务流旁路方法、 系统和策 略与计费规则功能实体。 背景技术
第三代合作伙伴计 ¾J ( 3rd Generation Partnership Project; 以下简称: 3 GPP )标准中, 系统架构演进 ( System Architecture Evolution; 以下简称: SAE ) 的网络架构包括: 接入网部分和核心网部分。 其中, 接入网部分包 括全球移动通讯系统增强型数据速率 GSM演进无线接入网( Global System for Mobile Communications Enhanced Data Rate for GSM Evolution Radio Access Network; 以下简称: GERAN ) 、 全球陆上无线接入 ( Universal Terrestrial Radio Access; 以 下简称: UTRAN ) 和演进 UTRAN
( Evolved-UTRAN; 以下简称: E-UTRAN ) ; 核心网部分主要包括移动 性管理实体 ( Mobility Management Entity; 以下简称: MME ) 、 服务网关
( Service Gateway; 以下简称: SGW )、分组数据网关 ( Packet Data Network Gateway; 以下简称: PGW )和策略与计费规则功能( Policy and Charging Rules Function; 以下简称: PCRF ) 实体等, 其中 MME管理移动和会话 信令; SGW与 PGW实现数据传输。
在 SAE 的网络架构中, 所有数据流都要经过核心网实体 SGW 和 PGW, 通过 PGW连接外部分组数据网络( Packet Data Network; 以下简 称: PDN ) , 例如: 因特网。
选择的因特网协议业务本地旁路 ( Selected IP Traffic Offload; 以下简 称: SIPTO )技术可以使业务数据流不经过运营商的核心网, 减小了核心 网的负荷。
现有 SAE 架构下的 SIPTO 方案是基于接入点名称 (Access Point Name; 以下简称: APN )粒度的。 具体地, 用户设备 ( User Equipment; 以下简称: UE )可以发起 PDN连接建立请求, 在 PDN连接建立请求消息 中携带 APN, 该 APN是事先定义好的 SIPTO APN, 或者非 SIPTO APN ( non-SIPTO APN ) ; MME根据上述 APN确定是否支持旁路, 即 MME 对该 APN下所有的业务进行旁路, 或者对该 APN下所有的业务不进行旁 路。
但是, 上述方案没有实现同一 APN 下, 对不同业务分别进行 non-SIPTO或者 SIPTO的能力, 即没有实现基于业务级的 SIPTO。
发明内容
本发明实施例提供一种业务流旁路方法、 系统和策略与计费规则功能 实体, 以实现对用户设备发起承载资源修改消息的业务进行旁路, 实现基 于业务级的 SIPTO。
本发明实施例提供一种业务流旁路方法, 包括:
策略与计费规则功能实体接收策略与计费执行功能实体发送的信用 控制请求消息, 所述信用控制请求消息携带用户设备在发起承载资源修改 消息时发送的所述用户设备的业务信息; 所述策略与计费规则功能实体根据所述用户设备的业务信息确定是 否对所述用户设备的业务信息对应的业务流进行旁路;
确定对所述用户设备的业务信息对应的业务流进行旁路之后, 所述策 略与计费规则功能实体获得与所述用户设备的业务信息对应的第一策略 和计费控制 (Policy and Charging Control; 以下简称: PCC )规则, 所述 第一 PCC规则包括选择的因特网协议业务本地旁路(SIPTO ) 指示; 所述策略与计费规则功能实体将所述第一 PCC规则发送给本地旁路 节点, 以便所述本地旁路节点根据所述第一 PCC规则创建与所述业务流对 应的 SIPTO承载, 或者根据所述第一 PCC规则对已有的 SIPTO承载进行修 改或删除操作。
本发明实施例还提供一种策略与计费规则功能实体, 包括: 接收模块, 用于接收策略与计费执行功能实体发送的信用控制请求消 息, 所述信用控制请求消息携带用户设备在发起承载资源修改消息时发送 的所述用户设备的业务信息;
确定模块, 用于根据所述用户设备的业务信息确定是否对所述用户设 备的业务信息对应的业务流进行旁路;
获得模块, 用于在所述确定模块确定对所述用户设备的业务信息对应 的业务流进行旁路之后, 获得与所述接收模块接收的所述用户设备的业务 信息对应的第一策略和计费控制(PCC )规则, 所述第一 PCC规则包括选 择的因特网协议业务本地旁路(SIPTO ) 指示;
发送模块, 用于将所述第一 PCC规则发送给本地旁路节点, 以便所述 本地旁路节点根据所述第一 PCC规则创建与所述业务流对应的 SIPTO承 载,或者根据所述第一 PCC规则对已有的 SIPTO承载进行修改或删除操作。 本发明实施例还提供一种业务流旁路系统, 包括: 本地旁路节点和策 略与计费规则功能实体;
所述策略与计费规则功能实体, 用于接收策略与计费执行功能实体发 送的信用控制请求消息, 所述信用控制请求消息携带用户设备在发起承载 资源修改消息时发送的所述用户设备的业务信息; 根据所述用户设备的业 务信息确定是否对所述用户设备的业务信息对应的业务流进行旁路; 确定 对所述用户设备的业务信息对应的业务流进行旁路之后, 获得与所述用户 设备的业务信息对应的第一策略和计费控制 (PCC )规则, 所述第一 PCC 规则包括选择的因特网协议业务本地旁路(SIPTO ) 指示; 并将所述第一 PCC规则发送给所述本地旁路节点;
所述本地旁路节点, 用于根据所述第一 PCC规则创建与所述业务流对 应的 SIPTO承载, 或者根据所述第一 PCC规则对已有的 SIPTO承载进行修 改或删除操作。
通过本发明实施例, 策略与计费规则功能实体接收到策略与计费执行 功能实体发送的信用控制请求消息之后, 根据该信用控制请求消息中携带 的用户设备的业务信息, 确定对该用户设备的业务信息对应的业务流进行 旁路之后, 获得与该用户设备的业务信息对应的第一 PCC 规则, 该第一 PCC规则包括 SIPTO指示, 然后策略与计费规则功能实体将该第一 PCC 规则发送给本地旁路节点, 由该本地旁路节点根据该第一 PCC 规则创建 与上述业务流对应的 SIPTO 承载, 或者根据该第一 PCC 规则对已有的 SIPTO承载进行修改或删除操作。从而实现了对用户设备发起承载资源修 改消息的业务进行旁路, 实现基于业务级的 SIPTO。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下 面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在 不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明业务流旁路方法实施例一的流程图;
图 2为本发明业务流旁路方法实施例二的流程图;
图 3为本发明业务流旁路方法实施例三的流程图;
图 4为本发明业务流旁路方法实施例四的流程图;
图 5为本发明业务流旁路方法实施例五的流程图;
图 6为本发明业务流旁路方法实施例六的流程图;
图 7为本发明业务流旁路方法实施例七的流程图;
图 8为本发明策略与计费规则功能实体实施例一的结构示意图; 图 9为本发明业务流旁路系统实施例一的结构示意图;
图 10为本发明业务流旁路系统实施例二的结构示意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本 发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描 述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有做出创造性劳动的前 提下所获得的所有其他实施例, 都属于本发明保护的范围。
图 1为本发明业务流旁路方法实施例一的流程图, 如图 1所示, 该业 务流旁路方法可以包括:
步骤 101 , PCRF实体接收策略与计费执行功能 (Policy and Charging Enforcement Function; 以下简称: PCEF ) 实体发送的信用控制请求消息, 该信用控制请求消息携带用户设备在发起承载资源修改消息时发送的该 用户设备的业务信息。
其中, PCEF实体是策略和因特网协议( Internet Protocol; 以下简称: IP )承载资源计费控制的策略执行点。 本发明实施例中, PCEF 实体位于 分组数据网关和本地旁路节点中。
步骤 102, PCRF 实体根据该用户设备的业务信息确定是否对该用户 设备的业务信息对应的业务流进行旁路。
具体地, PCRF 实体可以根据该用户设备的业务信息, 结合预先配置 的该 PCRF的配置信息和 /或运营商策略,确定是否对该用户设备的业务信 息对应的业务流进行旁路。
步骤 103 , 确定对用户设备的业务信息对应的业务流进行旁路之后, PCRF 实体获得与该用户设备的业务信息对应的第一 PCC 规则, 该第一 PCC规则包括 SIPTO指示。
步骤 104, PCRF实体将上述第一 PCC规则发送给本地旁路节点, 以 便本地旁路节点根据上述第一 PCC规则创建与上述业务流对应的 SIPTO 承载, 或者根据上述第一 PCC规则对已有的 SIPTO承载进行修改或删除 操作。
另夕卜, PCRF实体还可以将过程事务标识发送给本地旁路节点, 其中, 过程事务标识是由用户设备分配的关联标识, 用于将本地旁路节点发起的 创建、修改或删除 SIPTO承载的流程与用户设备发起的承载资源修改消息 流程关联起来, 接收到该过程事务标识之后, 该本地旁路节点可以根据该 过程事务标识将上述 SIPTO 承载与该用户设备发起的承载资源修改消息 流程进行关联。
本发明实施例中, 本地旁路节点可以为本地分组数据网关 (Local PGW; 以下简称: L-PGW ) , 也可以为其他可以实现旁路功能的实体, 本 发明实施例对本地旁路节点的具体形态不作限定。
在本实施例的一种实现方式中, PCRF 实体可以接收分组数据网关发 送的信用控制请求消息, 该信用控制请求消息是分组数据网关接收到移动 性管理实体通过服务网关发送的承载资源命令消息之后发送的, 该承载资 源命令消息是移动性管理实体接收到用户设备发送的承载资源修改消息 之后发送的; 这时, PCRF实体可以通过重鉴权请求消息将第一 PCC规则 发送给本地旁路节点; 另外, PCRF 实体还可以通过上述重鉴权请求消息 将过程事务标识发送给本地旁路节点, 以便该本地旁路节点根据该过程事 务标识将上述 SIPTO 承载与该用户设备发起的承载资源修改消息流程进 行关联。
在本实施例的另一种实现方式中, PCRF 实体可以接收分组数据网关 发送的信用控制请求消息, 该信用控制请求消息是分组数据网关接收到移 动性管理实体通过服务网关发送的承载资源命令消息之后发送的, 该承载 资源命令消息是移动性管理实体接收到用户设备发送的承载资源修改消 息之后发送的; 这时, PCRF 实体可以在接收到本地旁路节点发送的会话 建立请求消息之后, 通过会话建立响应消息将第一 PCC规则发送给本地 旁路节点; 另外, 本地旁路节点可以接收移动性管理实体通过会话建立请 求消息发送的过程事务标识,并根据该过程事务标识将上述 SIPTO承载与 该用户设备发起的承载资源修改消息流程进行关联。
在上述两种实现方式中, PCRF实体还可以将 SIPTO指示发送给分组 数据网关, 以便该分组数据网关向服务网关发送承载资源失败指示, 并由 该服务网关将承载资源失败指示发送给移动性管理实体; 上述承载资源失 败指示中的原因值指示对上述业务流进行旁路。
在本实施例的再一种实现方式中, PCRF 实体可以接收本地旁路节点 发送的信用控制请求消息, 该信用控制请求消息是本地旁路节点接收到移 动性管理实体发送的承载资源命令消息之后发送的; 在这种实现方式中, PCRF实体可以通过信用控制应答消息将上述第一 PCC规则发送给本地旁 路节点。 在这种实现方式中, 在 PCRF实体接收信用控制请求消息之前, 移动性管理实体可以将承载资源命令消息并行发送给服务网关和本地旁 路节点。
另外, 本实施例中, 确定对该用户设备的业务信息对应的业务流不进 行旁路之后, PCRF 实体可以获得与该用户设备的业务信息对应的第二 PCC规则,该第二 PCC规则包括非 SIPTO指示或者该第二 PCC规则不包 括 SIPTO指示; 然后, PCRF实体可以将第二 PCC规则发送给本地旁路节 点, 以便本地旁路节点向移动性管理实体发送承载资源失败指示, 该承载 资源失败指示携带上述第二 PCC规则。 具体地, PCRF实体可以接收本地 旁路节点发送的信用控制请求消息, 该信用控制请求消息是本地旁路节点 接收到移动性管理实体发送的承载资源命令消息之后发送的; 然后, PCRF 实体可以通过信用控制应答消息将第二 PCC规则发送给本地旁路节点。
接下来, 本地旁路节点向上述移动性管理实体发送承载资源失败指示 命令消息; 或者, 在 PCRF实体接收 PCEF实体发送的信用控制请求消息 之前, 移动性管理实体可以将承载资源命令消息并行发送给服务网关和本 地旁路节点。
上述实施例中, PCRF实体接收到 PCEF实体发送的信用控制请求消 息之后, 根据该信用控制请求消息中携带的用户设备的业务信息, 确定对 该用户设备的业务信息对应的业务流进行旁路之后, 获得与该用户设备的 业务信息对应的第一 PCC规则, 该第一 PCC规则包括 SIPTO指示, 然后 PCRF实体将该第一 PCC规则发送给本地旁路节点, 由该本地旁路节点根 据该第一 PCC规则创建与上述业务流对应的 SIPTO承载, 或者根据该第 一 PCC规则对已有的 SIPTO承载进行修改或删除操作。 从而实现了对用 户设备发起承载资源修改消息的业务进行旁路, 实现基于业务级的
SIPTO。
图 2为本发明业务流旁路方法实施例二的流程图, 本实施例以本地旁 路节点为 L-PGW为例进行说明。 如图 2所示, 该业务流旁路方法可以包 括:
步骤 201 , UE向 MME发送承载资源修改消息。 该承载资源修改消息 携带连接的演进分组系统缺省承载标识 (Linked Evolved Packet System Bearer Identifier; 以下简称: LBI )、 过程事务标识 ( Procedure Transaction Identifier; 以下简称: PTI ) 、 服务质量 ( Quality of Service; 以下简称: QoS ) 、 业务集合描述 ( Traffic Aggregate Description; 以下简称: TAD ) 和协议配置选项 ( Protocol Configuration Options; 以下简称: PCO ) 。
本实施例中, TAD和 PCO为该 UE的业务信息; 可选的, 该承载资 源修改消息还可以携带演进的分组系统 载标识 ( Evolved Packet System Bearer Identity; 以下简称: EPS Bearer ID ) 。
其中, TAD指示该承载资源修改消息请求的操作, 包括添加、 修改或 删除分组过滤器; PTI是由 UE分配的关联标识, 用于将 L-PGW发起的创 建、修改或删除 SIPTO承载的过程与 UE发起的承载资源修改消息流程关 联起来; QoS 指该承载资源修改消息请求的服务质量信息; PCO 用于在 UE与 PGW之间传递一些应用层参数, 对 SGW和 MME透明传输。
本实施例中, 当 UE请求进行创建新的承载的操作时, 该承载资源修 改消息需要携带 LBI, 其中, LBI用于标识请求创建的承载与哪个 PDN连 接关联, LBI即缺省承载的标识; 而当 UE请求在现有承载上进行修改或 者删除操作时, 该承载资源修改消息需要携带 EPS bearer ID。
步骤 202 , MME 向 SGW 发送 载资源命令 ( Bearer Resource Command )消息,该承载资源命令消息携带 LBI、 PTI、 QoS , TAD和 PCO。
步骤 203 , SGW向 PGW发送承载资源命令消息, 该承载资源命令消 息携带 LBI、 PTI、 QoS, TAD和 PCO。
步骤 204 , PGW 向 PCRF 实体发送信用控制请求 (Credit Control Request; 以下简称: CCR ) 消息, 该 CCR消息携带分组过滤器的信息和 对分组过滤器的操作信息以及 QoS信息, 这里还要携带 PTI。 该 CCR消 息用于请求 PCC规则。 其中分组过滤器的信息和对分组过滤器的操作信 息以及 QoS信息是 PGW从 QoS和 TAD转换过来的。
步骤 205 , PCRF实体根据该 UE的业务信息确定对该 UE的业务信息 对应的业务流进行旁路之后,获得与该 UE的业务信息对应的第一 PCC规 则, 该第一 PCC规则包括 SIPTO指示, 该 SIPTO指示用于通知网络侧为 上述业务流建立 SIPTO承载或者通知网络侧对已有的 SIPTO承载进行修 改或删除操作;然后, PCRF实体向 PGW发送信用控制应答( Credit Control Answer; 以下简称: CCA ) 消息, 该 CCA消息携带上述 SIPTO指示。
其中, 该 UE的业务信息包括 QoS和 TAD。
步骤 206, PGW收到 SIPTO指示之后, 向 SGW发送承载资源失败指 示 ( Bearer Resource Failure Indication ) , 该 载资源失败指示中的原因值 指示对上述业务流进行旁路,用于指示为上述业务流建立 SIPTO承载或者 对已有的 SIPTO承载进行修改或删除操作。 具体地, 可以将该承载资源失 败指示中的原因值设置为 SIPTO指示, 以指示对上述业务流进行旁路; 当 然本发明实施例并不局限于此, 还可以通过其他方式设置承载资源失败指 示中的原因值, 本发明实施例对承载资源失败指示中原因值的设置方式不 作限定。
步骤 207, SGW向 MME发送 7|载资源失败指示, 该 载资源失败指 示携带上述 SIPTO指示。
接收到 SGW发送的承载资源失败指示之后, MME等待 L-PGW发起 创建、 修改或删除 SIPTO承载的操作。
步骤 208, PCRF实体向 L-PGW发送重鉴权请求 ( Re-Auth Request; 以下简称: RAR ) 消息, 该 RAR消息携带第一 PCC规则和 PTI。 其中, PTI用于将 L-PGW发起的创建、 修改或删除 SIPTO承载的过程与 UE发 起的承载资源修改消息流程进行关联。
本实施例中, 第一 PCC规则包括 SIPTO指示, 该 SIPTO指示用于指 示 L-PGW对上述业务流进行旁路操作; 可选地, 该第一 PCC规则还可以 包括业务流检测信息和 QoS等。
本实施例中, PCRF实体在初始附着时已经与 L-PGW建立了会话, 因 此这里可以是 PCRF实体发送 RAR消息。 其中, L-PGW的地址可以在初 始附着时由 MME发送给 SGW, 再由 SGW发送给 PGW, 然后再由 PGW 发送给 PCRF实体; 也可以在初始附着时由 L-PGW主动向 PCRF实体发 起会话, 将该 L-PGW的地址发送给 PCRF实体。
本实施例中, 步骤 208可以在步骤 205之后, 步骤 206之前执行; 也 可以在步骤 207之后执行; 还可以与步骤 206和步骤 207并行执行。
步骤 209 , L-PGW 向 MME 发送创建、 修改或删除 载请求 ( Create/Update/Delete Bearer Request )消息, 该创建、 修改或删除承载请 求消息携带 PTI、 QoS和业务流模板( Traffic Flow Template; 以下简称: TFT ) , 用于创建与上述业务流对应的 SIPTO 载, 或者对已有的 SIPTO 承载进行修改或删除操作。
步骤 210 , MME向无线侧发起创建、 修改或删除无线侧 SIPTO 载 的过程。 步骤 211 , ΜΜΕ 向 L-PGW 发送创建、 修改或删除 载响应 ( Create/Update/Delete Bearer Response ) 消息, 在演进的 NodeB ( evolved NodeB; 以下简称: eNB ) 与 L-PGW之间创建 SIPTO承载, 或者对 eNB 与 L-PGW之间已有的 SIPTO承载进行修改或删除操作。
步骤 212, L-PGW向 PCRF实体发送重鉴权应答( Re-Auth Answer; 以下简称: RAA ) 消息, 指示资源分配是否成功。
上述实施例实现了对 UE发起承载资源修改消息的业务进行旁路, 实 现基于业务级的 SIPTO。
图 3为本发明业务流旁路方法实施例三的流程图, 本实施例以本地旁 路节点为 L-PGW为例进行说明。 如图 3所示, 该业务流旁路方法可以包 括:
步骤 301 , UE向 MME发送承载资源修改消息, 该承载资源修改消息 携带 LBI、 QoS、 TAD和 PCO。
本实施例中, QoS和 TAD为该 UE的业务信息。
步骤 302, MME向 SGW发送承载资源命令消息, 该承载资源命令消 息携带 LBI、 QoS , TAD和 PCO。
步骤 303 , SGW向 PGW发送承载资源命令消息, 该承载资源命令消 息携带 LBI、 QoS , TAD和 PCO。
步骤 304, PGW向 PCRF实体发送 CCR消息, 该 CCR消息携带分组 过滤器的信息和对分组过滤器的操作信息以及 QoS信息。 该 CCR消息用 于请求 PCC 规则。 其中分组过滤器的信息和对分组过滤器的操作信息以 及 QoS信息是 PGW从 QoS和 TAD转换过来的。 步骤 305 , PCRF实体根据该 UE的业务信息确定对该 UE的业务信息 对应的业务流进行旁路之后,获得与该 UE的业务信息对应的第一 PCC规 则, 该第一 PCC规则包括 SIPTO指示, 该 SIPTO指示用于通知网络侧为 上述业务流建立 SIPTO承载或者通知网络侧对已有的 SIPTO承载进行修 改或删除操作; 然后, PCRF实体向 PGW发送 CCA消息, 该 CCA消息 携带上述 SIPTO指示。
其中, 该 UE的业务信息包括 QoS和 TAD。
步骤 306, PGW收到 SIPTO指示之后, 向 SGW发送承载资源失败指 示, 该承载资源失败指示中的原因值指示对上述业务流进行旁路, 用于指 示为上述业务流建立 SIPTO承载。 具体地, 可以将该承载资源失败指示中 的原因值设置为 SIPTO指示, 以指示对上述业务流进行旁路; 当然本发明 实施例并不局限于此, 还可以通过其他方式设置承载资源失败指示中的原 因值, 本发明实施例对承载资源失败指示中原因值的设置方式不作限定。
步骤 307, SGW向 MME发送 7|载资源失败指示, 该 载资源失败指 示携带上述 SIPTO指示。
步骤 308, MME选择 L-PGW, 并向选择的 L-PGW发送会话建立请 求消息,该会话建立请求消息携带 PTI和缺省承载标识( EPS Bearer Identity for default bearer ) 。 该缺省承载标识在 L-PGW创建 SIPTO承载时发送给 MME , 以便 MME将创建的 SIPTO承载与缺省承载关联起来。
其中, PTI用于将 L-PGW发起的创建 SIPTO承载的过程与 UE发起 的承载资源修改消息流程进行关联。
步骤 309, L-PGW向 PCRF实体发送会话建立请求消息, 该会话建立 请求消息携带 UE 的 IP 地址, 以便 PCRF 实体将 IP 连接接入网络 ( IP-Connectivity Access Network; 以下简称: IP-CAN )会话与该会话建 立请求消息对应的会话关联起来。
步骤 310, PCRF实体向 L-PGW发送会话建立响应消息, 该会话建立 响应消息携带第一 PCC规则。
步骤 311 , L-PGW向 MME发送创建承载请求消息, 该创建承载请求 消息用于指示 MME创建 SIPTO承载,该创建承载请求消息携带 PTI、QoS、 TFT和缺省 7|载标识等信息。
步骤 312, MME向无线侧发起创建无线侧 SIPTO 载的过程。
步骤 313 , MME向 L-PGW发送创建承载响应消息 ,在 eNB与 L-PGW 之间创建 SIPTO 载。
上述实施例实现了对 UE发起承载资源修改消息的业务进行旁路, 实 现基于业务级的 SIPTO。
图 4为本发明业务流旁路方法实施例四的流程图, 本实施例以本地旁 路节点为 L-PGW为例进行说明。 如图 4所示, 该业务流旁路方法可以包 括:
步骤 401 , UE向 MME发送承载资源修改消息, 该承载资源修改消息 携带 LBI、 PTI、 EPS Bearer ID、 QoS , TAD和 PCO。
其中, QoS和 TAD为该 UE的业务信息; EPS Bearer ID指示在现有 承载上进行修改或删除操作。
步骤 402 , MME向 L-PGW发送承载资源命令消息, 该承载资源命令 消息携带 EPS Bearer ID、 PTI、 QoS, TAD和 PCO。 步骤 403 , L-PGW向 PCRF实体发送会话修改请求消息, 该会话修改 请求消息携带分组过滤器的信息和对分组过滤器的操作信息以及 QoS 信 息, 这里还要携带 PTI。 该会话修改请求消息是 CCR消息的一种, 用于请 求 PCC规则。其中分组过滤器的信息和对分组过滤器的操作信息以及 QoS 信息是 L-PGW从 QoS和 TAD转换过来的。
步骤 404, PCRF实体向 L-PGW发送会话修改响应消息, 该会话修改 响应消息携带与该 UE的业务信息对应的第一 PCC规则, 该第一 PCC规 则包括 SIPTO指示。
其中, 该 UE的业务信息包括 QoS和 TAD。
步骤 405 , L-PGW根据 PCRF 实体下发的第一 PCC规则, 向 MME 发送创建、 修改或删除承载请求消息, 为上述 UE的业务信息对应的业务 流创建 SIPTO承载, 或者, 对已有的 SIPTO承载进行修改或删除操作。
步骤 406, MME 向无线侧发送相应的创建、 修改或删除承载请求消 息, 发起创建、 修改或删除相应的无线侧 SIPTO承载的操作。
步骤 407, MME向 L-PGW发送与该创建、 修改或删除承载请求消息 对应的创建、 修改或删除承载响应消息。
上述实施例实现了对 UE发起承载资源修改消息的业务进行旁路, 实 现基于业务级的 SIPTO。
图 5为本发明业务流旁路方法实施例五的流程图, 本实施例以本地旁 路节点为 L-PGW为例进行说明。 如图 5所示, 该业务流旁路方法可以包 括:
步骤 501 , UE向 MME发送承载资源修改消息, 该承载资源修改消息 携带 LBI、 PTI、 QoS、 TAD和 PCO。
本实施例中, QoS和 TAD为该 UE的业务信息。
步骤 502, MME向 L-PGW发送承载资源命令消息, 该承载资源命令 消息携带 LBI、 PTI、 QoS、 TAD和 PCO。
步骤 503 , L-PGW向 PCRF实体发送会话修改请求消息, 该会话修改 请求消息携带分组过滤器的信息和对分组过滤器的操作信息以及 QoS 信 息, 这里还要携带 PTI。 该会话修改请求消息是 CCR消息的一种, 用于请 求 PCC规则。其中分组过滤器的信息和对分组过滤器的操作信息以及 QoS 信息是 L-PGW从 QoS和 TAD转换过来的。
步骤 504, PCRF实体根据 UE的业务信息确定对该 UE的业务信息对 应的业务流不进行旁路之后,获得与该 UE的业务信息对应的第二 PCC规 则, 该第二 PCC规则携带 non-SIPTO指示或者该第二 PCC规则不携带 SIPTO指示,其中,该第二 PCC规则指示为 UE创建一个 non-SIPTO承载, 或者对已有的 non-SIPTO承载进行修改或删除操作; 然后 , PCRF实体可 以通过会话修改响应消息将第二 PCC规则发送给 L-PGW。
步骤 505 , L-PGW向 MME发送^载资源失败指示, 该 7|载资源失败 指示携带 non-SIPTO指示或者该承载资源失败指示不携带 SIPTO指示。
接收到 L-PGW发送的承载资源失败指示之后, MME等待 PGW发起 创建、 修改或删除 non-SIPTO承载的操作。
步骤 506, PCRF实体向 PGW发送 RAR消息 , 该 RAR消息携带 PTI 和第二 PCC规则。
步骤 507, PGW向 PCRF实体发送 RAA消息。 步骤 508, PGW根据上述第二 PCC规则, 向 SGW发送创建、 修改或 删除承载请求消息。
步骤 509, SGW向 MME发送创建、 修改或删除承载请求消息。
步骤 510, MME 向无线侧发起相应的创建、 修改或删除 non-SIPTO 承载的操作。
步骤 511 , MME向 SGW发送创建、 修改或删除承载响应消息。
上述实施例实现了对 UE发起承载资源修改消息的业务不进行旁路。 图 6为本发明业务流旁路方法实施例六的流程图, 本实施例以本地旁 路节点为 L-PGW为例进行说明。 如图 6所示, 该业务流旁路方法可以包 括:
步骤 601 , UE向 MME发送承载资源修改消息。
步骤 602 , MME向 L-PGW发送承载资源命令消息。
步骤 603 , L-PGW向 PCRF实体发送会话修改请求消息, 该会话修改 请求消息携带请求的 QoS。
步骤 604, PCRF实体向 L-PGW发送会话修改响应消息, 该会话修改 响应消息携带 non-SIPTO指示。 该 non-SIPTO指示用于指示为 UE创建一 个 non-SIPTO承载 , 或者对已有的 non-SIPTO承载进行修改或删除操作。
步骤 605 , L-PGW向 MME发送^载资源失败指示, 该 7|载资源失败 指示携带 non-SIPTO指示。 该 non-SIPTO指示用于指示为 UE创建一个 non-SIPTO承载 , 或者对已有的 non-SIPTO承载进行修改或删除操作。
步骤 606, MME向 SGW发送承载资源命令消息。
步骤 607, SGW向 PGW发送承载资源命令消息。 步骤 608, PGW向 PCRF实体发送 CCR消息。
步骤 609, PCRF实体向 PGW发送 CCA消息, 该 CCA消息携带第二 PCC规则。
步骤 610, PGW根据上述第二 PCC规则, 向 SGW发送创建、 修改或 删除承载请求消息。
步骤 611 , SGW向 MME发送创建、 修改或删除承载请求消息。
步骤 612, MME 向无线侧发起相应的创建、 修改或删除 non-SIPTO 承载的操作。
步骤 613 , MME向 SGW发送创建、 修改或删除承载响应消息。
上述实施例实现了对 UE发起承载资源修改消息的业务不进行旁路。 图 7为本发明业务流旁路方法实施例七的流程图, 本实施例以本地旁 路节点为 L-PGW为例进行说明。 如图 7所示, 该业务流旁路方法可以包 括:
步骤 701 , UE向 MME发送 载资源修改消息。
本实施例中, 当不需要进行业务流旁路时, 执行步骤 702a〜步骤 710; 当需要进行业务流旁路时, 执行步骤 71 la〜步骤 718。
步骤 702a, MME向 L-PGW发送承载资源命令消息。
步骤 703a, L-PGW向 PCRF实体发送会话修改请求消息, 该会话修 改请求消息携带请求的 QoS。
步骤 704a, PCRF实体向 L-PGW发送会话修改响应消息, 该会话修 改响应消息携带 non-SIPTO指示。 该 non-SIPTO指示用于指示为 UE创建 一个 non-SIPTO承载 ,或者对已有的 non-SIPTO承载进行修改或删除操作。 步骤 705a, L-PGW向 MME发送 7|载资源失败指示, 该 7|载资源失 败指示携带 non-SIPTO指示。 该 non-SIPTO指示用于指示为 UE创建一个 non-SIPTO承载 , 或者对已有的 non-SIPTO承载进行修改或删除操作。
MME接收到该承载资源失败指示之后, 等待 PGW发起创建、修改或 删除 non-SIPTO承载的操作。
步骤 702b, MME向 SGW发送承载资源命令消息。
步骤 703b, SGW向 PGW发送承载资源命令消息。
步骤 704b, PGW向 PCRF实体发送 CCR消息。
步骤 705b, PCRF实体向 PGW发送 CCA消息, 该 CCA消息携带第 二 PCC规则。
步骤 706b, PGW根据上述第二 PCC规则, 向 SGW发送创建、 修改 或删除承载请求消息。
步骤 707b, SGW向 MME发送创建、 修改或删除承载请求消息。 本实施例中, 步骤 702a〜步骤 705a与步骤 702b〜步骤 707b并行执行。 步骤 708, MME 向无线侧发起相应的创建、 修改或删除 non-SIPTO 承载的操作。
步骤 709, MME向 SGW发送创建、 修改或删除承载响应消息。
步骤 710, SGW向 PGW发送创建、 修改或删除承载响应消息。
步骤 711 a , MME向 L-PGW发送承载资源命令消息。
步骤 712a, L-PGW向 PCRF实体发送会话修改请求消息, 该会话修 改请求消息携带请求的 QoS。
步骤 713a, PCRF实体向 L-PGW发送会话修改响应消息, 该会话修 改响应消息携带 SIPTO 指示。 该 SIPTO 指示用于指示为 UE 创建一个 SIPTO承载, 或者对已有的 SIPTO承载进行修改或删除操作。
步骤 714a, L-PGW向 MME发送创建、 修改或删除 载请求消息。 步骤 711b, MME向 SGW发送承载资源命令消息。
步骤 712b, SGW向 PGW发送承载资源命令消息。
步骤 713b, PGW向 PCRF实体发送 CCR消息。
步骤 714b, PCRF实体向 PGW发送 CCA消息,该 CCA消息携带 SIPTO 指示。
步骤 715b, PGW向 SGW发送 7|载资源失败指示, 该 载资源失败 指示携带上述 SIPTO指示。
步骤 716b, SGW向 MME发送 7|载资源失败指示, 该 载资源失败 指示携带上述 SIPTO指示。
本实施例中, 步骤 71 la〜步骤 714a与步骤 71 lb〜步骤 716b并行执行。 步骤 717 , MME向无线侧发起相应的创建、 修改或删除 SIPTO 载 的操作。
步骤 718, MME向 SGW发送创建、 修改或删除承载响应消息。
上述实施例实现了对 UE发起承载资源修改消息的业务进行旁路, 或 者, 对 UE发起承载资源修改消息的业务不进行旁路, 实现了基于业务级 的 SIPTO。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机 可读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程 序代码的介质。
图 8为本发明策略与计费规则功能实体实施例一的结构示意图, 本实 施例提供的策略与计费规则功能实体可以实现本发明图 1所示实施例的流 程, 如图 8所示, 该策略与计费规则功能实体可以包括: 接收模块 81、 确 定模块 82、 获得模块 83和发送模块 84。
其中,接收模块 81 , 用于接收策略与计费执行功能实体发送的信用控 制请求消息, 该信用控制请求消息携带用户设备在发起承载资源修改消息 时发送的该用户设备的业务信息; 其中, 策略与计费执行功能实体是策略 和 IP承载资源计费控制的策略执行点。 本发明实施例中, 策略与计费执 行功能实体位于分组数据网关和本地旁路节点中。
确定模块 82 ,用于根据该用户设备的业务信息确定是否对该用户设备 的业务信息对应的业务流进行旁路; 具体地, 确定模块 82可以根据该用 户设备的业务信息, 结合预先配置的该策略与计费规则功能实体的配置信 息和 /或运营商策略,确定是否对该用户设备的业务信息对应的业务流进行 旁路。
获得模块 83 , 用于在确定模块 82确定对该用户设备的业务信息对应 的业务流进行旁路之后, 获得与接收模块 81 接收的该用户设备的业务信 息对应的第一 PCC规则, 该第一 PCC规则包括 SIPTO指示;
发送模块 84, 用于将第一 PCC规则发送给本地旁路节点, 以便本地 旁路节点根据第一 PCC规则创建与上述业务流对应的 SIPTO承载, 或者 根据第一 PCC规则对已有的 SIPTO承载进行修改或删除操作。 本实施例中, 发送模块 84 还可以将过程事务标识发送给本地旁路节 点, 其中, 过程事务标识是由用户设备分配的关联标识, 用于将本地旁路 节点发起的创建、修改或删除 SIPTO承载的流程与用户设备发起的承载资 源修改消息流程关联起来, 接收到该过程事务标识之后, 本地旁路节点可 以根据该过程事务标识将上述 SIPTO 承载与用户设备发起的承载资源修 改消息流程进行关联。
具体地, 在本实施例的一种实现方式中, 接收模块 81 可以接收分组 数据网关发送的信用控制请求消息, 该信用控制请求消息是分组数据网关 接收到移动性管理实体通过服务网关发送的承载资源命令消息之后发送 的, 该承载资源命令消息是移动性管理实体接收到用户设备发送的承载资 源修改消息之后发送的; 这时, 发送模块 84可以通过重鉴权请求消息将 第一 PCC规则和过程事务标识发送给本地旁路节点; 或者, 发送模块 84 可以在接收模块 81 接收到本地旁路节点发送的会话建立请求消息之后, 通过会话建立响应消息将第一 PCC规则发送给本地旁路节点。
另外, 发送模块 84还可以将上述 SIPTO指示发送给分组数据网关, 以便分组数据网关向服务网关发送承载资源失败指示, 并由该服务网关将 上述承载资源失败指示发送给移动性管理实体; 该承载资源失败指示中的 原因值指示对上述业务流进行旁路。
在本实施例的另一种实现方式中, 接收模块 81 可以接收本地旁路节 点发送的信用控制请求消息, 该信用控制请求消息是本地旁路节点接收到 移动性管理实体发送的承载资源命令消息之后发送的; 这时, 发送模块 84 可以通过信用控制应答消息将上述第一 PCC规则发送给本地旁路节点。 另外, 本实施例中, 在确定模块 82确定对该用户设备的业务信息对 应的业务流不进行旁路之后; 获得模块 83还可以获得与该用户设备的业 务信息对应的第二 PCC规则, 该第二 PCC规则包括非 SIPTO指示或者该 第二 PCC规则不包括 SIPTO指示; 然后,发送模块 84还可以将第二 PCC 规则发送给本地旁路节点, 以便本地旁路节点向移动性管理实体发送承载 资源失败指示, 该承载资源失败指示携带上述第二 PCC规则。 具体地, 接收模块 81 可以接收本地旁路节点发送的信用控制请求消息, 该信用控 制请求消息是本地旁路节点接收到移动性管理实体发送的承载资源命令 消息之后发送的; 然后, 发送模块 84可以通过信用控制应答消息将第二 PCC规则发送给本地旁路节点。
上述策略与计费规则功能实体中, 接收模块 81 接收到策略与计费执 行功能实体发送的信用控制请求消息之后, 确定模块 82根据该信用控制 请求消息中携带的用户设备的业务信息, 确定对该用户设备的业务信息对 应的业务流进行旁路之后, 由获得模块 83 获得与该用户设备的业务信息 对应的第一 PCC规则, 该第一 PCC规则包括 SIPTO指示, 然后发送模块 84将该第一 PCC规则发送给本地旁路节点, 由该本地旁路节点根据该第 一 PCC规则创建与上述业务流对应的 SIPTO承载, 或者根据该第一 PCC 规则对已有的 SIPTO承载进行修改或删除操作。从而实现了对用户设备发 起承载资源修改消息的业务进行旁路, 实现了基于业务级的 SIPTO。
图 9为本发明业务流旁路系统实施例一的结构示意图, 如图 9所示, 该业务流旁路系统可以包括: 策略与计费规则功能实体 91 和本地旁路节 点 92; 其中, 策略与计费规则功能实体 91 , 用于接收策略与计费执行功能实 体发送的信用控制请求消息, 该信用控制请求消息携带用户设备在发起承 载资源修改消息时发送的该用户设备的业务信息; 根据该用户设备的业务 信息确定是否对该用户设备的业务信息对应的业务流进行旁路; 确定对该 用户设备的业务信息对应的业务流进行旁路之后, 获得与该用户设备的业 务信息对应的第一 PCC规则, 该第一 PCC规则包括 SIPTO指示; 并将该 第一 PCC规则过程事务标识发送给本地旁路节点 92; 具体地, 策略与计 费规则功能实体 91 可以通过本发明图 8所示的策略与计费规则功能实体 实现。
本地旁路节点 92, 用于根据第一 PCC规则创建与上述业务流对应的 SIPTO承载, 或者根据第一 PCC规则对已有的 SIPTO承载进行修改或删 除操作。
上述业务流旁路系统实现了对用户设备发起承载资源修改消息的业 务进行旁路, 实现了基于业务级的 SIPTO。
图 10为本发明业务流旁路系统实施例二的结构示意图,如图 10所示, 该业务流旁路系统可以包括: UE 1001、 eNB 1002、 MME 1003、 PCRF实 体 1004、 SGW 1005、 PGW 1006和 L-PGW 1007。
本实施例中, L-PGW 1007为本地旁路节点, L-PGW 1007的功能与本 发明图 9所示实施例中本地旁路节点 92的功能相同, 在此不再赘述;
PCRF实体 1004的功能与本发明图 9所示实施例中策略与计费规则功 能实体 91的功能相同, 在此不再赘述; PCRF实体 1004同样可以通过本 发明图 8所示实施例的策略与计费规则功能实体实现; 本实施例中, UE 1001、 eNB 1002、 MME 1003、 PCRF实体 1004、 SGW 1005、 PGW 1006和 L-PGW 1007可以按照本发明图 2〜图 7所示实施例的 流程进行交互, 在此不再赘述。
上述业务流旁路系统实现了对用户设备发起承载资源修改消息的业 务进行旁路, 实现了基于业务级的 SIPTO。
本领域技术人员可以理解附图只是一个优选实施例的示意图, 附图中 的模块或流程并不一定是实施本发明所必须的。
本领域技术人员可以理解实施例中的装置中的模块可以按照实施例 描述进行分布于实施例的装置中, 也可以进行相应变化位于不同于本实施 例的一个或多个装置中。 上述实施例的模块可以合并为一个模块, 也可以 进一步拆分成多个子模块。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修 改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不 使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权利要求
1、 一种业务流旁路方法, 其特征在于, 包括:
策略与计费规则功能实体接收策略与计费执行功能实体发送的信用 控制请求消息, 所述信用控制请求消息携带用户设备在发起承载资源修改 消息时发送的所述用户设备的业务信息;
所述策略与计费规则功能实体根据所述用户设备的业务信息确定是 否对所述用户设备的业务信息对应的业务流进行旁路;
确定对所述用户设备的业务信息对应的业务流进行旁路之后, 所述策 略与计费规则功能实体获得与所述用户设备的业务信息对应的第一策略 和计费控制(PCC )规则, 所述第一 PCC规则包括选择的因特网协议业务 本地旁路 ( SIPTO ) 指示;
所述策略与计费规则功能实体将所述第一 PCC 规则发送给本地旁路 节点, 以便所述本地旁路节点根据所述第一 PCC 规则创建与所述业务流 对应的 SIPTO承载, 或者根据所述第一 PCC规则对已有的 SIPTO承载进 行修改或删除操作。
2、 根据权利要求 1所述的方法, 其特征在于, 还包括:
所述策略与计费规则功能实体将过程事务标识发送给所述本地旁路 节点,以便所述本地旁路节点根据所述过程事务标识将所述 SIPTO承载与 所述用户设备发起的承载资源修改消息进行关联。
3、 根据权利要求 2所述的方法, 其特征在于, 所述策略与计费规则 功能实体接收策略与计费执行功能实体发送的信用控制请求消息包括: 所述策略与计费规则功能实体接收分组数据网关发送的信用控制请 求消息, 所述信用控制请求消息是所述分组数据网关接收到移动性管理实 体通过服务网关发送的承载资源命令消息之后发送的, 所述承载资源命令 消息是所述移动性管理实体接收到所述用户设备发送的承载资源修改消 息之后发送的;
所述策略与计费规则功能实体将所述第一 PCC 规则发送给本地旁路 节点包括:
所述策略与计费规则功能实体通过重鉴权请求消息将所述第一 PCC 规则发送给所述本地旁路节点;
所述策略与计费规则功能实体将过程事务标识发送给所述本地旁路 节点包括:
所述策略与计费规则功能实体通过重鉴权请求消息将所述过程事务 标识发送给所述本地旁路节点。
4、 根据权利要求 1 所述的方法, 其特征在于, 所述策略与计费规则 功能实体接收策略与计费执行功能实体发送的信用控制请求消息包括: 所述策略与计费规则功能实体接收分组数据网关发送的信用控制请 求消息, 所述信用控制请求消息是所述分组数据网关接收到移动性管理实 体通过服务网关发送的承载资源命令消息之后发送的, 所述承载资源命令 消息是所述移动性管理实体接收到所述用户设备发送的承载资源修改消 息之后发送的;
所述策略与计费规则功能实体将所述第一 PCC 规则发送给本地旁路 节点包括: 所述策略与计费规则功能实体在接收到所述本地旁路节点发送的会 话建立请求消息之后, 通过会话建立响应消息将所述第一 PCC 规则发送 给所述本地旁路节点。
5、 根据权利要求 4所述的方法, 其特征在于, 还包括:
所述本地旁路节点接收移动性管理实体通过会话建立请求消息发送 的过程事务标识,并根据所述过程事务标识将所述 SIPTO承载与所述用户 设备发起的承载资源修改消息进行关联。
6、 根据权利要求 3或 4所述的方法, 其特征在于, 还包括: 所述策略与计费规则功能实体将所述 SIPTO 指示发送给分组数据网 关, 以便所述分组数据网关向所述服务网关发送承载资源失败指示, 并由 所述服务网关将所述承载资源失败指示发送给移动性管理实体; 所述承载 资源失败指示中的原因值指示对所述业务流进行旁路。
7、 根据权利要求 1 所述的方法, 其特征在于, 所述策略与计费规则 功能实体接收策略与计费执行功能实体发送的信用控制请求消息包括: 所述策略与计费规则功能实体接收本地旁路节点发送的信用控制请 求消息, 所述信用控制请求消息是所述本地旁路节点接收到移动性管理实 体发送的承载资源命令消息之后发送的;
所述策略与计费规则功能实体将所述第一 PCC 规则发送给本地旁路 节点包括:
所述策略与计费规则功能实体通过信用控制应答消息将所述第一 PCC规则发送给所述本地旁路节点。
8、 根据权利要求 1所述的方法, 其特征在于, 还包括: 确定对所述用户设备的业务信息对应的业务流不进行旁路之后, 所述 策略与计费规则功能实体获得与所述用户设备的业务信息对应的第二
PCC规则,所述第二 PCC规则包括非 SIPTO指示或者所述第二 PCC规则 不包括 SIPTO指示;
所述策略与计费规则功能实体将所述第二 PCC 规则发送给所述本地 旁路节点, 以便所述本地旁路节点向所述移动性管理实体发送承载资源失 败指示, 所述承载资源失败指示携带所述第二 PCC规则。
9、 根据权利要求 8 所述的方法, 其特征在于, 所述策略与计费规则 功能实体接收策略与计费执行功能实体发送的信用控制请求消息包括: 所述策略与计费规则功能实体接收本地旁路节点发送的信用控制请 求消息, 所述信用控制请求消息是所述本地旁路节点接收到移动性管理实 体发送的承载资源命令消息之后发送的;
所述策略与计费规则功能实体将所述第二 PCC 规则发送给所述本地 旁路节点包括:
所述策略与计费规则功能实体通过信用控制应答消息将所述第二
PCC规则发送给所述本地旁路节点。
10、 根据权利要求 9所述的方法, 其特征在于, 还包括:
所述本地旁路节点向所述移动性管理实体发送承载资源失败指示之 消息。
11、 根据权利要求 7或 8所述的方法, 其特征在于, 所述策略与计费 规则功能实体接收策略与计费执行功能实体发送的信用控制请求消息之 前, 还包括:
所述移动性管理实体将承载资源命令消息并行发送给服务网关和所 述本地旁路节点。
12、 一种策略与计费规则功能实体, 其特征在于, 包括:
接收模块, 用于接收策略与计费执行功能实体发送的信用控制请求消 息, 所述信用控制请求消息携带用户设备在发起承载资源修改消息时发送 的所述用户设备的业务信息;
确定模块, 用于根据所述用户设备的业务信息确定是否对所述用户设 备的业务信息对应的业务流进行旁路;
获得模块, 用于在所述确定模块确定对所述用户设备的业务信息对应 的业务流进行旁路之后, 获得与所述接收模块接收的所述用户设备的业务 信息对应的第一策略和计费控制(PCC )规则, 所述第一 PCC规则包括选 择的因特网协议业务本地旁路(SIPTO ) 指示;
发送模块, 用于将所述第一 PCC 规则发送给本地旁路节点, 以便所 述本地旁路节点根据所述第一 PCC规则创建与所述业务流对应的 SIPTO 承载, 或者根据所述第一 PCC规则对已有的 SIPTO承载进行修改或删除 操作。
13、 根据权利要求 12所述的策略与计费规则功能实体, 其特征在于, 所述发送模块还用于将过程事务标识发送给所述本地旁路节点, 以便所述 本地旁路节点根据所述过程事务标识将所述 SIPTO 承载与所述用户设备 发起的承载资源修改消息进行关联。
14、 根据权利要求 13所述的策略与计费规则功能实体, 其特征在于, 所述接收模块具体用于接收分组数据网关发送的信用控制请求消息, 所述 信用控制请求消息是所述分组数据网关接收到移动性管理实体通过服务 网关发送的承载资源命令消息之后发送的, 所述承载资源命令消息是所述 移动性管理实体接收到所述用户设备发送的承载资源修改消息之后发送 的;
所述发送模块具体用于通过重鉴权请求消息将所述第一 PCC 规则和 所述过程事务标识发送给所述本地旁路节点。
15、 根据权利要求 14所述的策略与计费规则功能实体, 其特征在于, 所述发送模块具体用于在所述接收模块接收到所述本地旁路节点发 送的会话建立请求消息之后, 通过会话建立响应消息将所述第一 PCC规 则发送给所述本地旁路节点。
16、 根据权利要求 14或 15所述的策略与计费规则功能实体, 其特征 在于,
所述发送模块还用于将所述 SIPTO指示发送给分组数据网关,以便所 述分组数据网关向所述服务网关发送承载资源失败指示, 并由所述服务网 关将所述承载资源失败指示发送给移动性管理实体; 所述承载资源失败指 示中的原因值指示对所述业务流进行旁路。
17、 根据权利要求 12所述的策略与计费规则功能实体, 其特征在于, 所述接收模块具体用于接收本地旁路节点发送的信用控制请求消息, 所述 信用控制请求消息是所述本地旁路节点接收到移动性管理实体发送的承 载资源命令消息之后发送的;
所述发送模块具体用于通过信用控制应答消息将所述第一 PCC规则 发送给所述本地旁路节点。
18、 根据权利要求 12所述的策略与计费规则功能实体, 其特征在于, 所述获得模块还用于在所述确定模块确定对所述用户设备的业务信 息对应的业务流不进行旁路之后, 获得与所述用户设备的业务信息对应的 第二 PCC规则,所述第二 PCC规则包括非 SIPTO指示或者所述第二 PCC 规则不包括 SIPTO指示;
所述发送模块还用于将所述第二 PCC规则发送给所述本地旁路节点, 以便所述本地旁路节点向所述移动性管理实体发送承载资源失败指示, 所 述承载资源失败指示携带所述第二 PCC规则。
19、 一种业务流旁路系统, 其特征在于, 包括: 本地旁路节点和策略 与计费规则功能实体;
所述策略与计费规则功能实体, 用于接收策略与计费执行功能实体发 送的信用控制请求消息, 所述信用控制请求消息携带用户设备在发起承载 资源修改消息时发送的所述用户设备的业务信息; 根据所述用户设备的业 务信息确定是否对所述用户设备的业务信息对应的业务流进行旁路; 确定 对所述用户设备的业务信息对应的业务流进行旁路之后, 获得与所述用户 设备的业务信息对应的第一策略和计费控制 (PCC )规则, 所述第一 PCC 规则包括选择的因特网协议业务本地旁路(SIPTO ) 指示; 并将所述第一 PCC规则发送给所述本地旁路节点;
所述本地旁路节点, 用于根据所述第一 PCC 规则创建与所述业务流 对应的 SIPTO承载, 或者根据所述第一 PCC规则对已有的 SIPTO承载进 行修改或删除操作。
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