WO2017000142A1 - Procédé de gestion de charge de p-cscf, et passerelle - Google Patents

Procédé de gestion de charge de p-cscf, et passerelle Download PDF

Info

Publication number
WO2017000142A1
WO2017000142A1 PCT/CN2015/082710 CN2015082710W WO2017000142A1 WO 2017000142 A1 WO2017000142 A1 WO 2017000142A1 CN 2015082710 W CN2015082710 W CN 2015082710W WO 2017000142 A1 WO2017000142 A1 WO 2017000142A1
Authority
WO
WIPO (PCT)
Prior art keywords
cscf
load
pgw
managed
status message
Prior art date
Application number
PCT/CN2015/082710
Other languages
English (en)
Chinese (zh)
Inventor
陈霞云
倪国瑜
邓涛
陈丽金
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/CN2015/082710 priority Critical patent/WO2017000142A1/fr
Priority to CN201580031159.2A priority patent/CN106464693B/zh
Publication of WO2017000142A1 publication Critical patent/WO2017000142A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1046—Call controllers; Call servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • H04L67/1004—Server selection for load balancing
    • H04L67/1008—Server selection for load balancing based on parameters of servers, e.g. available memory or workload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • H04L67/1029—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers using data related to the state of servers by a load balancer

Definitions

  • the present invention relates to the field of communications, and in particular, to a P-CSCF load management method and a Packet Data Network GateWay (PGW).
  • PGW Packet Data Network GateWay
  • IP Internet Protocol
  • IMS Internet Multimedia Subsystem
  • P-CSCF Proxy-Call Session Control Funtion
  • I-CSCF Interrogating-Call Session Control Function
  • S-CSCF Serving-Call Session Control Funence
  • the P-CSCF acts as a proxy node for IMS access, and all IMS services need to be accessed through the P-CSCF.
  • the PGW in the Evolved Packet Core (EPC) network is connected to the P-CSCF of the IMS network through the SGi interface.
  • the PGW is a one-to-many relationship between the PW and the P-CSCF.
  • the P-CSCF is mainly allocated through the PGW, and the UE needs to establish the SIP signaling before the IMS registration.
  • the default bearer in the IMS PDN connection establishment process, requests the P-CSCF address from the PGW.
  • the PGW carries the P-CSCF address list in the response message.
  • the PGW feeds back the P-CSCF address according to the weight ratio of each P-CSCF pre-configured by the PGW.
  • the list is used to load balance the user terminal.
  • the UE preferentially selects the first P-CSCF address in the P-CSCF address list and initiates the Session Initiation Protocol (SIP) registration before the normal voice master can be performed. Called business.
  • SIP Session Initiation Protocol
  • the weight of the fixed P-CSCF pre-configured in the PGW is generally performed according to the performance of each P-CSCF and the network deployment plan.
  • the user is distributed to the docked P-CSCF to achieve load balancing of user distribution.
  • the load between the P-CSCF devices needs to be adjusted, including:
  • the load imbalance between the actual P-CSCFs is caused in some abnormal scenarios.
  • the P-CSCF recovered after the fault may have no user access, new The number of users accessing the expanded P-CSCF is very small.
  • the PGW will send the P-CSCF address based on the load sharing principle, not all terminals will preferentially select the first P-CSCF address of the address list due to terminal compatibility. Wait.
  • There is no method for controlling load imbalance between P-CSCFs in the prior art and long-term load imbalance will greatly increase the risk of P-CSCF congestion and make the carrier network not optimally utilized.
  • the invention provides a P-CSCF load management method and a PGW, which implement automatic load balancing and lossless load migration of VoLTE voice services.
  • a P-CSCF load management method which is applied to a PGW, and the method includes:
  • the load on each P-CSCF managed by the PGW is managed according to the status message.
  • the status message includes load information indicating a P-CSCF access capability
  • each P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message includes bearer information indicating whether the P-CSCF is overloaded
  • the managing the load on each P-CSCF managed by the PGW according to the status message includes:
  • a P-CSCF other than the first P-CSCF in the P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes load information indicating a P-CSCF access capability
  • the status message further includes load information indicating a P-CSCF access capability
  • the managing the load on each P-CSCF managed by the PGW according to the status message includes:
  • each P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message includes maintenance information indicating whether the P-CSCF is about to be operated and maintained;
  • the managing the load on each P-CSCF managed by the PGW according to the status message includes:
  • a P-CSCF other than the second P-CSCF in the P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes load information indicating a P-CSCF access capability
  • a P-CSCF other than the second P-CSCF in the P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes load information indicating a P-CSCF access capability
  • the managing the load on each P-CSCF managed by the PGW according to the status message includes:
  • each P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes bearer information indicating whether the P-CSCF is overloaded
  • the managing the load on each P-CSCF managed by the PGW according to the status message includes:
  • the third P-CSCF indicates that the maintenance information in the status message in the P-CSCF managed by the PGW is P - the CSCF is not about to be operated, and the bearer information in the status message indicates the P-CSCF overloaded by the P-CSCF; or the third P-CSCF is the maintenance information indication in the status message in the P-CSCF managed by the PGW The P-CSCF is about to be operated and maintained, and the bearer information in the status message indicates that the P-CSCF is not overloaded by the P-CSCF;
  • a P-CSCF other than the third P-CSCF in the P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes load information indicating a P-CSCF access capability
  • the status message further includes load information indicating a P-CSCF access capability
  • each P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the load information includes at least one of the following: the number of remaining ports that the P-CSCF can access, and the P-CSCF capacity occupancy ratio;
  • a first P-CSCF address list where the first P-CSCF address list includes at least one address of the P-CSCF managed by the PGW, and the priority is per P-CSCF
  • the remaining accessible load numbers are arranged in order from high to low, or the priority is arranged in order of each P-CSCF capacity occupancy ratio from low to high.
  • the load migration includes:
  • the method further includes:
  • the IMS PND connection release message is sent to the second load to instruct the second load to disconnect the current IMS PDN connection;
  • the IMS PDN connection release message includes indication information for instructing the second load to immediately re-initiate an IMS PDN establishment request; the second load is any load in a load that is sent by the P-CSCF address list ;
  • the fifteenth possible aspect of the first aspect In conjunction with the twelfth possible implementation of the first aspect or the thirteenth possible implementation of the first aspect or the fourteenth possible implementation of the first aspect, the fifteenth possible aspect of the first aspect In the implementation,
  • the load information includes at least one of the following: the number of remaining ports that the P-CSCF can access, and the P-CSCF capacity occupancy ratio;
  • the priority of the P-CSCF address included in the second P-CSCF address list is arranged in descending order of the number of remaining accessible ports of each P-CSCF, or according to each P-CSCF capacity.
  • the occupancy ratio is arranged in order from low to high.
  • the method further includes:
  • the newly accessed load is no longer allocated to the P-CSCF for load migration.
  • the status message sent by each proxy call session control function P-CSCF managed by the PGW is received by forwarding of a Policy and Charging Rules Function (PCRF).
  • PCRF Policy and Charging Rules Function
  • a PGW including:
  • a receiving unit configured to receive a status message sent by each proxy call session control function P-CSCF managed by the PGW;
  • a management unit configured to manage, according to the status message received by the receiving unit, a load on each P-CSCF managed by the PGW.
  • the status message includes load information indicating a P-CSCF access capability
  • the management unit is specifically configured to:
  • each P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message includes bearer information indicating whether the P-CSCF is overloaded
  • the management unit is specifically configured to:
  • a P-CSCF other than the first P-CSCF in the P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes load information indicating a P-CSCF access capability
  • the management unit is specifically configured to:
  • the status message further includes load information indicating a P-CSCF access capability
  • the management unit is specifically configured to:
  • each P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message includes maintenance information indicating whether the P-CSCF is about to be operated and maintained;
  • the management unit is specifically configured to:
  • the maintenance information in the status message in the P-CSCF indicates the P-CSCF to be operated and operated by the P-CSCF;
  • a P-CSCF other than the second P-CSCF in the P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes load information indicating a P-CSCF access capability
  • the management unit is specifically configured to:
  • a P-CSCF other than the second P-CSCF in the P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes load information indicating a P-CSCF access capability
  • the management unit is specifically configured to:
  • each P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes bearer information indicating whether the P-CSCF is overloaded
  • the management unit is specifically configured to:
  • the third P-CSCF indicates that the maintenance information in the status message in the P-CSCF managed by the PGW is P - the CSCF is not ready for operation and maintenance, and the bearer information in the status message indicates the P-CSCF overloaded by the P-CSCF; or the third P-CSCF
  • the maintenance information in the status message in the P-CSCF managed by the PGW indicates that the P-CSCF is to be operated and maintained, and the bearer information in the status message indicates that the P-CSCF is not overloaded by the P-CSCF;
  • a P-CSCF other than the third P-CSCF in the P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes load information indicating a P-CSCF access capability
  • the management unit is specifically configured to:
  • the status message further includes load information indicating a P-CSCF access capability
  • the management unit is specifically configured to:
  • each P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the load information includes at least one of the following: the number of remaining ports that the P-CSCF can access, and the P-CSCF capacity occupancy ratio;
  • the management unit manages the load on each P-CSCF managed by the PGW according to the load information, including:
  • a first P-CSCF address list where the first P-CSCF address list includes at least one address of the P-CSCF managed by the PGW, and the priority is per P-CSCF
  • the remaining accessible load numbers are arranged in order from high to low, or the priority is arranged in order of each P-CSCF capacity occupancy ratio from low to high.
  • the management unit performs load migration, including:
  • the second P-CSCF address list does not include an address of the fourth P-CSCF.
  • the management unit is further configured to:
  • the second P-CSCF address list is sent to the load of the fourth P-CSCF in batches according to the preset rate
  • the second load update P is not received.
  • the second load immediately re-initiates an IMS PDN setup request; the second payload is any one of loads of the P-CSCF address list being sent;
  • the management unit is specifically configured to:
  • the fifteenth possible aspect of the second aspect In conjunction with the twelfth possible implementation of the second aspect or the thirteenth possible implementation of the second aspect or the fourteenth possible implementation of the second aspect, the fifteenth possible aspect of the second aspect In the implementation,
  • the load information includes at least one of the following: the number of remaining ports that the P-CSCF can access, and the P-CSCF capacity occupancy ratio;
  • the priority of the P-CSCF address included in the second P-CSCF address list is arranged in descending order of the number of remaining accessible ports of each P-CSCF, or according to each P-CSCF capacity.
  • the occupancy ratio is arranged in order from low to high.
  • the management unit further includes:
  • the newly accessed load is no longer allocated to the P-CSCF for load migration.
  • the receiving unit is specifically configured to:
  • a PGW including:
  • a receiver configured to receive a status message sent by each proxy call session control function P-CSCF managed by the PGW;
  • a processor configured to manage, according to the status message received by the receiver, a load on each P-CSCF managed by the PGW.
  • the status message includes load information indicating a P-CSCF access capability
  • the processor is specifically configured to:
  • each P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message includes bearer information indicating whether the P-CSCF is overloaded
  • the processor is specifically configured to:
  • a P-CSCF other than the first P-CSCF in the P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes load information indicating a P-CSCF access capability
  • the processor is specifically configured to:
  • the status message further includes load information indicating a P-CSCF access capability
  • the processor is specifically configured to:
  • each P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message includes maintenance information indicating whether the P-CSCF is about to be operated and maintained;
  • the processor is specifically configured to:
  • a P-CSCF other than the second P-CSCF in the P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes load information indicating a P-CSCF access capability
  • the processor is specifically configured to:
  • a P-CSCF other than the second P-CSCF in the P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes load information indicating a P-CSCF access capability
  • the processor is specifically used to:
  • each P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes bearer information indicating whether the P-CSCF is overloaded
  • the processor is specifically configured to:
  • the third P-CSCF indicates that the maintenance information in the status message in the P-CSCF managed by the PGW is P - the CSCF is not about to be operated, and the bearer information in the status message indicates the P-CSCF overloaded by the P-CSCF; or the third P-CSCF is the maintenance information indication in the status message in the P-CSCF managed by the PGW The P-CSCF is about to be operated and maintained, and the bearer information in the status message indicates that the P-CSCF is not overloaded by the P-CSCF;
  • a P-CSCF other than the third P-CSCF in the P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the status message further includes load information indicating a P-CSCF access capability
  • the processor is specifically configured to:
  • the status message further includes load information indicating a P-CSCF access capability
  • the processor is specifically configured to:
  • each P-CSCF managed by the PGW is allocated a load of a subsequent new access.
  • the load information includes at least one of the following: the number of remaining ports that the P-CSCF can access, and the P-CSCF capacity occupancy ratio;
  • the processor manages the load on each P-CSCF managed by the PGW according to the load information, including:
  • a first P-CSCF address list where the first P-CSCF address list includes at least one address of the P-CSCF managed by the PGW, and the priority is per P-CSCF
  • the remaining accessible load numbers are arranged in order from high to low, or the priority is arranged in order of each P-CSCF capacity occupancy ratio from low to high.
  • the processor performs load migration, including:
  • the processor is further configured to:
  • the second P-CSCF address list is sent to the load of the fourth P-CSCF in batches according to the preset rate
  • the second load update P is not received.
  • the second load immediately re-initiates an IMS PDN setup request; the second payload is any one of loads of the P-CSCF address list being sent;
  • the processor is specifically configured to:
  • the fifteenth possible aspect of the third aspect In conjunction with the twelfth possible implementation of the third aspect or the thirteenth possible implementation of the third aspect or the fourteenth possible implementation of the third aspect, the fifteenth possible aspect of the third aspect In the implementation,
  • the load information includes at least one of the following: the number of remaining ports that the P-CSCF can access, and the P-CSCF capacity occupancy ratio;
  • the priority of the P-CSCF address included in the second P-CSCF address list is arranged in descending order of the number of remaining accessible ports of each P-CSCF, or according to each P-CSCF capacity.
  • the occupancy ratio is arranged in order from low to high.
  • the processor further includes:
  • the newly accessed load is no longer allocated to the P-CSCF for load migration.
  • the receiver is specifically configured to:
  • a status message sent by each proxy call session control function P-CSCF managed by the PGW is received by forwarding of the PCRF.
  • the P-CSCF load management method and the PGW provided by the embodiment of the present invention receive the status message sent by each P-CSCF managed by the PGW, and manage the load on each P-CSCF managed by the PGW according to the status message. In this way, since the status message is fed back by the P-CSCF, the current state of each P-CSCF is dynamically reflected, and the PGW manages the load on each P-CSCF according to the status message (including management modes such as allocation and migration).
  • the load distribution is better matched to the current access capability of each P-CSCF, which improves the balance of load distribution, and also reduces the risk of overload of each P-CSCF;
  • PGW can also overload the P- The CSCF or the load on the P-CSCF to be operated and unloaded is unloaded to avoid overloading of the P-CSCF or damage to the call of the load connected to the operation, which improves the user experience.
  • FIG. 1 is a flowchart of establishing an IMS PDN provided by the prior art
  • FIG. 3 is a schematic flowchart of a P-CSCF load management method according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of another P-CSCF load management method according to an embodiment of the present invention.
  • FIG. 4A is a schematic flowchart of a method for load migration according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of another P-CSCF load management method according to an embodiment of the present disclosure.
  • FIG. 6 is a structural diagram of a device of a PGW according to an embodiment of the present invention.
  • FIG. 7 is a structural diagram of another apparatus of a PGW according to an embodiment of the present invention.
  • the IMS PDN connection is established before the UE initiates the IMS registration.
  • the process of establishing an IMS PDN connection by the UE can be as shown in FIG. 1:
  • the UE sends a PDN connectivity request (PDN connectivity request) message to the Mobility Management Entity (MME), where the message carries a request P-CSCF address indication.
  • PDN connectivity request PDN connectivity request
  • MME Mobility Management Entity
  • S102 The MME sends a Create Session Request message to the Serving GateWay (SGW), where the message carries the request P-CSCF address indication.
  • SGW Serving GateWay
  • the SGW sends a Create session request message to the PGW, where the message is in the message. Carry the request P-CSCF address indication.
  • the PGW selects the P-CSCF address list according to the principle of load sharing, and sends the P-CSCF address list to the SGW by creating a session response Create session response message.
  • the selected P-CSCF address list includes at least an address of the preferentially allocated P-CSCF selected by the PGW according to the load sharing principle.
  • the fixed P-CSCF weights pre-configured in the PGW are generally configured according to the performance of each P-CSCF and the network deployment plan, and the load balancing is distributed to the P-CSCF. Implement load balancing for user distribution.
  • P-CSCF1 is first allocated 25 loads
  • P-CSCF2 is assigned 25 loads
  • P-CSCF3 is allocated.
  • Ten loads are then assigned to the P-CSCF4 by 40 loads, which are then repeated to ensure that the ratio of users on each P-CSCF is substantially close to the respective weight ratio (25:25:10:40).
  • the selected P-CSCF address list may be a P-CSCF address or multiple P-CSCF addresses.
  • the P-CSCF address ranked first is a high priority address for the UE to preferentially select.
  • the SGW sends a Create session response message to the MME, where the message carries a P-CSCF address list.
  • the MME sends a PDN connection to the UE to receive a connectivity accept message, where the message carries a P-CSCF address list.
  • the UE selects a P-CSCF address from the P-CSCF address list to initiate IMS registration.
  • the UE selects the P-CSCF address with the highest priority from the P-CSCF address list to initiate IMS registration.
  • the P-CSCF that is accessed by the UE sends an Application-Auth-Request (AAR) message to the PCRF.
  • AAR Application-Auth-Request
  • the AAR message carries the P-CSCF address registered by the UE.
  • the PCRF sends an authentication response request (Re-Auth-Request, RAR for short) message to the PGW.
  • Re-Auth-Request Re-Auth-Request, RAR for short
  • the RAR message carries the P-CSCF address registered by the UE.
  • the PGW knows the P-CSCF address registered by the UE, and updates the correspondence between the UE and the P-CSCF to the user context in the PGW.
  • the P-CSCF is in danger of failure.
  • the PGW needs to perform fault recovery on the UE accessing the P-CSCF;
  • the process of the P-CSCF1 monitoring process is described by the PGW, and the process of the PGW to recover the UE that accesses the P-CSCF1 is described.
  • the process may include:
  • S201 and PGW periodically detect whether the P-CSCF1 is reachable
  • the PGW finds that the P-CSCF1 is unreachable, the PGW sends an Update Bearer Request message to the UE registered on the P-CSCF1 by using the SGW.
  • the Update bearer request message carries the updated P-CSCF address list; the updated P-CSCF address list does not include the faulty P-CSCF1.
  • the UE After receiving the updated P-CSCF address list, the UE selects a P-CSCF address from the updated P-CSCF address list, and re-initiates the IMS registration.
  • the UE receives the updated P-CSCF address list and does not re-initiate the IMS registration.
  • a first embodiment of the present invention provides a P-CSCF load management method, which is applied to a PGW.
  • the method may include:
  • the status message may be a regular interaction message between the PGW and the P-CSCF, that is, the content in the status message is carried by a regular interaction message between the PGW and the P-CSCF.
  • the status message may also be a dedicated message, and is dedicated to sending content included in the status message; the present invention does not specifically limit the form of the status message.
  • the receiving time of the status message may be determined according to actual requirements, which is not specifically limited by the present invention.
  • the status message may be sent along with the regular interaction message, and the content of the status message is carried each time the regular interaction message is sent.
  • the status message may be sent periodically or at a preset time.
  • the present invention does not specifically limit this.
  • the manner in which the PGW receives the status message may include, but is not limited to, the following two methods:
  • a status message sent by each P-CSCF within the jurisdiction is received through the SGi interface.
  • the SGi interface is a direct communication interface between the PGW and the P-CSCF.
  • the status message may be a probe message, such as a ping message.
  • the status message is a conventional interaction between PGW and P-CSCF
  • the form of the status message may be set according to actual needs, and the present invention does not specifically limit this.
  • the status message sent by each P-CSCF within the jurisdiction is received by the forwarding of the PCRF.
  • the PGW when the PGW receives the status message sent by each P-CSCF in the jurisdiction through the forwarding of the PCRF, the PGW receives the status message through the message interaction of the Rx interface and the Gx interface.
  • the Rx interface message may be an AAR message; and the Gx interface message may be a RAR interface message.
  • the P-CSCF may send a status message to the PCRF via an Rx interface message (eg, an AAR message), which forwards the status message to the PGW using a Gx interface message (eg, RAR).
  • Rx interface message eg, an AAR message
  • Gx interface message eg, RAR
  • the management of the load on each P-CSCF managed by the PGW may include, but is not limited to, load allocation, load migration, and the like.
  • different content may be included in the status message according to actual requirements to instruct the PGW to manage the load on the P-CSCF.
  • the information about the access capability of the P-CSCF is included in the status message, so that the PGW performs the allocation of the newly accessed load according to the information, thereby improving the load imbalance.
  • the information about the overload of the P-CSCF may be included in the status message, so that the PGW unloads the load on the overloaded P-CSCF according to the information, thereby improving the phenomenon that the access user is damaged due to the overload.
  • the information about the upcoming operation and maintenance of the P-CSCF may be included in the status message, so that the PGW unloads the load on the P-CSCF to be operated and operated according to the information, and the P-CSCF is soon to be improved. Operation and maintenance cannot provide services that cause damage to the access user's business.
  • the content included in the status message may be set according to actual requirements, which is not specifically limited in the present invention. Any scheme in which the PGW manages the load on the managed P-CSCF according to the status message belongs to the protection scope of the present invention.
  • the P-CSCF load management method receives the status message sent by each P-CSCF managed by the PGW, and manages the load on each P-CSCF managed by the PGW according to the status message. In this way, since the status message is fed back by the P-CSCF, the current state of each P-CSCF is dynamically reflected, and the PGW manages the load on each P-CSCF according to the status message (including management modes such as allocation and migration).
  • the load distribution is better matched to the current access capability of each P-CSCF, which improves the balance of load distribution, and also reduces the risk of overload of each P-CSCF;
  • PGW can also overload the P- The CSCF or the load on the P-CSCF to be operated and unloaded is unloaded to avoid overloading of the P-CSCF or damage to the call of the load connected to the operation, which improves the user experience.
  • the second embodiment of the present invention provides another P-CSCF load management method, which is applied to a PGW.
  • the method may include:
  • the status message of the P-CSCF may include at least one of the following information: load information indicating the P-CSCF access capability, bearer information indicating whether the P-CSCF is currently overloaded, Maintenance information indicating whether the P-CSCF is about to be operated and maintained.
  • the load information may include at least one of the following: the number of remaining ports that the P-CSCF can access, and the P-CSCF capacity occupancy ratio.
  • the load information is sent by the P-CSCF and then sent.
  • the specific solution of the P-CSCF for obtaining the load information is not limited.
  • the P-CSCF capacity occupation ratio may be a ratio of the number of loads that the P-CSCF has accessed to the maximum number of accessible ports, or the number of loads that the P-CSCF has accessed and the P-CSCF. The maximum number of accessible loads.
  • the present invention does not limit the specific representation of the capacity occupancy ratio of the P-CSCF.
  • the bearer information is sent by the P-CSCF when it is judged to be overloaded according to its own load information.
  • the P-CSCF determines that the number of loads that it has accessed is greater than or equal to the first preset threshold, the P-CSCF determines that it is overloaded; or the P-CSCF determines its own central processor (
  • the central processing unit (CPU) is called the P-CSCF to determine that it is overloaded when the occupancy rate is greater than or equal to the second preset threshold.
  • the first preset threshold may be less than or equal to the maximum access of the P-CSCF.
  • the number of loads; the second preset threshold may be less than or equal to 100%.
  • the maintenance information is sent by the P-CSCF according to an operation and maintenance instruction that occurs internally, and is determined to be sent when the operation and maintenance are performed.
  • the operations and maintenance include, but are not limited to, operations such as upgrading, powering off, and the like that cannot continue service.
  • the format of the information included in the status message may be in the form of a character or a digital form, which is not specifically limited in the present invention. Any interaction between the two sides can be known.
  • the P-CSCF may not include load information in the status message.
  • the status message of the P-CSCF may only load information, and does not include bearer information or maintenance information.
  • the bearer information is included in the status information.
  • the maintenance information is included in the status information.
  • the PGW when the PGW receives the status of each P-CSCF managed by the PGW After the message, the PGW needs to manage the load on each P-CSCF managed by the PGW according to the status message.
  • the PGW manages the load on each P-CSCF managed by the PGW according to the status message according to the content included in the status message, and may selectively perform any one of S402, S403, S406, and S409. item.
  • the process of allocating a subsequent newly accessed load to each P-CSCF managed by the PGW according to the load information may include the following steps A and B:
  • Step A Receive a P-CSCF address request message sent by the first load, where the first load is any load of a subsequently newly accessed load.
  • Step B Feed back the first P-CSCF address list to the first load.
  • the first P-CSCF address list includes at least one address of the P-CSCF managed by the PGW, and the priority is arranged in descending order of the number of remaining accessible ports of each P-CSCF, or The priority is arranged in order of each P-CSCF capacity occupancy ratio from low to high.
  • the priority ranking need not be considered.
  • the address of the P-CSCF included in the first P-CSCF address list is the remaining in the P-CSCF managed by the PGW. The highest number of loads that can be accessed.
  • the first P-CSCF address list includes only one address of the P-CSCF that is not overloaded and is not operated in the jurisdiction, the first P-CSCF address list is The address of the P-CSCF included only is the lowest capacity occupancy ratio in the P-CSCF that is not overloaded and has not been operated.
  • PGW1 manages five P-CSCFs, which are respectively recorded as proxy 1, proxy 2, proxy 3, proxy 4, and proxy 5;
  • PGW1 receives the status messages (including load information only) sent by the three P-CSCFs within the jurisdiction:
  • Status message of agent 3 the number of remaining accessible ports 300, the number of connected loads 50;
  • PGW1 can allocate the subsequent newly accessed load to the managed 3 P-CSCFs (Proxy 1, Agent 2, Agent 3) according to the load information in the status message.
  • the solution that the PGW1 allocates the subsequent newly accessed load to the managed three P-CSCFs (Proxy 1, Agent 2, and Agent 3) according to the load information in the status message may have at least the following two schemes:
  • the remaining loadable capacities of the proxy 1, the proxy 2, and the proxy 3 are respectively: 100, 150, 300;
  • PGW1 When PGW1 receives the P-CSCF address request message sent by the newly accessed load, PGW1 may sequentially send the proxy to the proxy according to the weight ratio of 100:150:300 (ie, 2:3:6) according to the load sharing principle. Agent 2, Agent 3 allocates the load of the new access.
  • PGW1 may first allocate 2 loads to the agent 1, then allocate 3 loads to the agent 2, and then allocate 6 loads to the agent 3, and then repeat the execution.
  • PGW1 may also first distribute the load to the agent 2, and may also first distribute the load to the agent 3.
  • the present invention does not limit the order of assigning the newly accessed load to the agent 1, the agent 2, and the agent 3 in this example. It can be distributed in order according to the weight ratio of 2:3:6.
  • the capacity occupation ratios of the agent 1, the agent 2, and the agent 3 are respectively: 200/(100+200), 100/(150+100), 50/(300+50), that is, They are: 66.7%, 40%, 14.3%;
  • PGW1 When PGW1 receives the P-CSCF address request message sent by the newly accessed load, PGW1 allocates the newly accessed load in order of the capacity occupation ratio of the three P-CSCFs from low to high, so that each P-CSCF The capacity occupancy ratio is as close as possible.
  • PGW1 may preferentially assign the newly accessed load to the agent 3.
  • the specific implementation may be as follows:
  • PGW1 When PGW1 receives a P-CSCF address request message sent by a newly accessed load, PGW1 may feed back the P-CSCF address list to the load of the new access as: the address of the proxy 1; or, PGW1 may go to this
  • the newly accessed load feedback P-CSCF address list is: the address of the agent 1, the address of the agent 2, and the address of the agent 3.
  • S403. Determine whether the first P-CSCF exists in the P-CSCF managed by the PGW.
  • the first P-CSCF is a P-CSCF in which the bearer information in the status message in the P-CSCF managed by the PGW indicates that the P-CSCF is overloaded.
  • the method for performing load migration on the first P-CSCF may include:
  • S4041 Scan a user context, and obtain a load that accesses the first P-CSCF.
  • the user context is stored in the PGW, and includes a correspondence between each P-CSCF in the jurisdiction and a load that accesses the P-CSCF.
  • Table 1 is merely an example to illustrate the content included in the user context, and is not specifically limited to the form and content of the user context. In the actual application, the form and content of the user context can be determined according to actual needs, which is not specifically limited by the present invention.
  • the status message that the PGW2 receives the P-CSCF3 includes the bearer information indicating that the P-CSCF3 is overloaded, and the PGW2 scans the internal user context as shown in Table 1, and can obtain the load of accessing the P-CSCF3 as the UE5 and the UE6. .
  • S4042 Send a second P-CSCF address list to the load that accesses the first P-CSCF in batches according to the preset rate, to indicate that the load connected to the first P-CSCF is migrated.
  • the second P-CSCF address list does not include an address of the first P-CSCF.
  • the priority of the P-CSCF address included in the second P-CSCF address list is ranked according to the number of remaining accessible loads of each P-CSCF from highest to lowest, or, according to each P- The CSCF capacity occupancy ratio is arranged in order from low to high.
  • the preset rate indicates the number of information that can be simultaneously sent. Therefore, the second P-CSCF address list is sent to the load of the first P-CSCF in batches according to the preset rate, which means that each time the connection is forwarded. A plurality of loads indicated by the preset rate in the load of the first P-CSCF transmit a second P-CSCF address list, and the remaining ones are sent in the next batch.
  • the preset rate is less than or equal to the processing power of the PGW.
  • the preset rate can be set according to actual requirements, which is not specifically limited in the present invention.
  • the preset rate is equal to the processing power of the PGW
  • the preset rate can be less than or equal to 100/sec per second, that is, less than 100 connections per second.
  • the load entering the first P-CSCF sends a second P-CSCF address list.
  • PGW2 may simultaneously send the second P-CSCF address list to UE5 and UE6.
  • the preset rate transmission may be reduced to improve the PGW performance.
  • Sending a second P-CSCF address list may include:
  • the load of the call that is being connected to the load of the first P-CSCF is sent to the second P-CSCF address list after the call ends.
  • the PGW sends the P-CSCF address list to the load, and may be directly sent by the SGi interface or may be forwarded by the PCRF.
  • the current existing interactive message may be implemented by using the P-CSCF address list that needs to be sent, or may be implemented in the form of a proprietary message. Nor is it specifically limited.
  • the method for performing load migration on the first P-CSCF may further include the following S4043 to S4045:
  • the IMS PDN connection release message includes indication information for indicating that the second load immediately re-initiates the IMS PDN establishment request; and the second load is any load of the load that is sent by the P-CSCF address list.
  • the indication information may be a Reactivation requested cause value.
  • the preset duration may be implemented by using a timer, that is, after the second P-CSCF address list is sent to the second load, the timer is started, and when the timer expires, the preset duration ends.
  • the specific value of the preset duration may be set according to actual requirements, which is not specifically limited in the present invention. Among them, the longer the preset duration is set, the better the judgment accuracy is, but the higher the system implementation requirement is; the shorter the preset duration is set, the judgment accuracy is slightly lower, and the system implementation cost is lower.
  • the preset duration is set to 10 seconds.
  • step 3 to step 4 are required to re-register the second load for the purpose of migration. Avoid overloading the call of the second load.
  • the message that the second load updates the P-CSCF address may be an AAR message in S109.
  • S4045 Feed back a second P-CSCF address list to the second load.
  • S4044 and S4045 are the same as S103 and S104, and details are not described herein.
  • the newly accessed load will not be allocated to the first P-CSCF.
  • the status message may further include load information indicating a P-CSCF access capability.
  • the P-CSCF other than the first P-CSCF in the P-CSCF managed by the PGW is allocated a subsequent new access load, including:
  • the P-CSCF other than the first P-CSCF in the P-CSCF managed by the PGW is allocated a load of the subsequent new access.
  • a P-CSCF other than the first P-CSCF in the P-CSCF managed by the PGW is allocated a subsequent new access load, and the S402 manages to the PGW according to the load information.
  • the process in which the P-CSCF allocates the subsequent newly accessed load is similar, except that the P-CSCF address list that the PGW feeds back to the newly accessed load does not include the first P-CSCF.
  • PGW1 governs 5 P-CSCFs, which are respectively recorded as Agent 1, Agent 2, Agent 3, Agent 4, and Agent 5;
  • the status messages sent by PGW1 to each of the five P-CSCFs within the jurisdiction are:
  • the agent 3 is overloaded, and then S404 is performed to perform load migration.
  • the PGW1 can allocate the load of the subsequent new access to the agent (the agent 1, the agent 2, the agent 4) according to the load information in the status message.
  • the process of the specific allocation has been described in detail in S402, and will not be described again here. .
  • the second P-CSCF is a P-CSCF indicating that the P-CSCF is to be operated and maintained by the maintenance information in the status message in the P-CSCF managed by the PGW.
  • the newly accessed load will not be allocated to the second P-CSCF.
  • the status message may further include load information for indicating a P-CSCF access capability.
  • the P-CSCF other than the second P-CSCF in the P-CSCF managed by the PGW is allocated a load of the subsequent new access, including:
  • the P-CSCF other than the second P-CSCF in the P-CSCF managed by the PGW is allocated a load of the subsequent new access.
  • a P-CSCF other than the second P-CSCF in the P-CSCF managed by the PGW is allocated a subsequent new access load, and S402 manages each of the PGWs according to the load information.
  • the process in which the P-CSCF allocates the subsequent newly accessed load is similar, except that the P-CSCF address list that the PGW feeds back to the newly accessed load does not include the second P-CSCF.
  • PGW1 governs 5 P-CSCFs, which are respectively recorded as Agent 1, Agent 2, Agent 3, Agent 4, and Agent 5;
  • the status messages sent by PGW1 to each of the five P-CSCFs within the jurisdiction are:
  • the agent 3 is about to perform operation and maintenance, and then performs load migration on S407.
  • the PGW1 can allocate the load of the subsequent new access to the agent (the agent 1, the agent 2, the agent 4) according to the load information in the status message.
  • the process of the specific allocation has been described in detail in S402, and will not be described again here. .
  • the third P-CSCF indicates that the maintenance information in the status message in the P-CSCF managed by the PGW indicates that the P-CSCF is not about to be operated and maintained, and the bearer information in the status message indicates that the P-CSCF is overloaded by the P-CSCF. Or the third P-CSCF indicates that the P-CSCF is to be operated and maintained for the maintenance information in the status message in the P-CSCF managed by the PGW, and the bearer information in the status message indicates that the P-CSCF is not overloaded. CSCF.
  • the third P-CSCF indicates that the P-CSCF is not about to be operated and maintained
  • the maintenance information in the status message in the P-CSCF managed by the PGW, and the bearer information in the status message indicates that the P-CSCF is overloaded.
  • -CSCF then load migration of the third P-CSCF until the third P-CSCF is not overloaded.
  • the third P-CSCF indicates that the P-CSCF is to be operated and maintained in the maintenance information in the status message in the P-CSCF managed by the PGW, and the bearer information in the status message indicates that the P-CSCF is not overloaded, the P-CSCF is not overloaded. Then, the third P-CSCF is subjected to load migration until no load is accessed on the third P-CSCF.
  • the newly accessed load will not be allocated to the third P-CSCF.
  • the status message may further include Load information of CSCF access capability.
  • the P-CSCF other than the third P-CSCF in the P-CSCF managed by the PGW is allocated a load of the subsequent new access, including:
  • the P-CSCF other than the third P-CSCF in the P-CSCF managed by the PGW is allocated a load of the subsequent new access.
  • the P-CSCF other than the third P-CSCF in the P-CSCF managed by the PGW is allocated a subsequent new access load, and the S402 manages to the PGW according to the load information.
  • the process in which the P-CSCF allocates the subsequent newly accessed load is similar, and is only the P-CSCF address that the PGW feeds back to the newly accessed load.
  • the third P-CSCF is not included in the list.
  • the newly accessed load is no longer allocated to the P-CSCF that performs load migration.
  • the P-CSCF load management method receives the status message sent by each P-CSCF managed by the PGW, and manages the load on each P-CSCF managed by the PGW according to the status message. In this way, since the status message is fed back by the P-CSCF, the current state of each P-CSCF is dynamically reflected, and the PGW manages the load on each P-CSCF according to the status message (including management modes such as allocation and migration).
  • the load distribution is better matched to the current access capability of each P-CSCF, which improves the balance of load distribution, and also reduces the risk of overload of each P-CSCF;
  • PGW can also overload the P- The CSCF or the load on the P-CSCF to be operated and unloaded is unloaded to avoid overloading of the P-CSCF or damage to the call of the load connected to the operation, which improves the user experience.
  • the preset duration is set in the migration, migration failure due to load compatibility problems is avoided, and the call loss of the load is also avoided.
  • the third embodiment of the present invention provides a P-CSCF load management method.
  • the method shown in FIG. 3 or FIG. 4 is described in detail by taking the interaction between the EPC network and each unit in the IMS network as an example.
  • the process in which the PGW directly interacts with the P-CSCF through the SGi interface is taken as an example.
  • PGW manages two P-CSCFs, which are recorded as P-CSCF A and P-CSCF B, respectively.
  • the method may include:
  • the PGW receives the status message including the load information sent by the P-CSCF A and the P-CSCF B through the SGi interface.
  • the load information in the status message sent by the P-CSCF A received by the PGW is: the capacity occupancy ratio is 30%; the load information in the status message sent by the P-CSCF B received by the PGW is: the capacity occupancy ratio is 50. %.
  • the PGW receives the P-CSCF address request message sent by the UE1.
  • the UE1 is any one of the subsequent newly accessed loads.
  • the P-CSCF address request message sent by the UE1 is forwarded and received by the MME, the HSS, and the SGW.
  • the PGW feeds back the P-CSCF address list to the UE1.
  • the P-CSCF address list includes an address of the P-CSCF A and an address of the P-CSCF B, and the address of the P-CSCF A has a higher priority than the address of the P-CSCF B.
  • the PGW feeds back the P-CSCF address list to the UE1, and the PGW is forwarded and transmitted by the SGW, the HSS, and the MME.
  • the PGW receives, by using the SGi interface, a status message that is sent by the P-CSCF A and includes the bearer information.
  • the bearer information in the status message indicates that the P-CSCF A is overloaded.
  • the PGW scans the user context and obtains a load that accesses the P-CSCF A.
  • the PGW scans the user context, and the load of accessing the P-CSCF A is 20, which are sequentially recorded as UE2 to UE21.
  • the PGW sends the updated P-CSCF address list to the five loads that are not in the load of the load connected to the P-CSCF A according to the preset rate, and starts the timer respectively.
  • the PGW sends the updated P-CSCF address list to the five bears that are not in the load of the load connected to the P-CSCF A according to the preset rate, and is forwarded by the SGW, the HSS, and the MME. .
  • the preset rate is 5 per second.
  • the PGW transmits the updated P-CSCF address list to UE3, UE6, UE8, UE10, and UE12 that are not in the UE2 to UE21.
  • the updated P-CSCF address list does not include the address of the P-CSCF A, and only includes the address of the P-CSCF B.
  • the PGW receives the message that the UE3, UE6, UE8, and UE10 sent by the P-CSCF B update the P-CSCF address, and the P-CSCF B sends the message.
  • the message that the UE3, the UE6, the UE8, and the UE10 update the P-CSCF address includes the identifiers of the UE3, the UE6, the UE8, and the UE10, and is used to indicate that the UE3, the UE6, the UE8, and the UE10 have re-accessed the P-CSCF B.
  • P-CSCF A is migrated to P-CSCF B.
  • the message that the UE3, the UE6, the UE8, and the UE10 that are sent by the P-CSCF B to update the P-CSCF address may be a message or a plurality of messages, which is not specifically limited in the present invention.
  • the PGW sends an IMS PND connection release message to the UE 12.
  • the IMS PDN connection release message includes a reactivation requested cause value.
  • the PGW PGW sends an IMS PND connection release message to the UE 12, which is forwarded and sent by the SGW, the HSS, and the MME.
  • the PGW receives the IMS PDN setup request sent by the UE12 and feeds back the updated P-CSCF address list to the U12, so that the UE12 completes the IMS re-registration.
  • the PGW receives the status information including the load information sent by the P-CSCF A, and ends the load migration of the P-CSCF A.
  • the PGW receives the status message that is sent by the P-CSCF B and includes the maintenance information, and starts to perform load migration on the P-CSCF B until no load is accessed on the second P-CSCF.
  • the process of performing load migration on the P-CSCF B in S510 is the same as the process of performing load migration on the P-CSCF A in S505 to S508, and details are not described herein.
  • the P-CSCF load management method receives the status message sent by each P-CSCF managed by the PGW, and manages the load on each P-CSCF managed by the PGW according to the status message. In this way, since the status message is fed back by the P-CSCF, the current state of each P-CSCF is dynamically reflected, and the PGW manages the load on each P-CSCF according to the status message (including allocation, migration, etc.).
  • PGW can also overload The P-CSCF or the load on the P-CSCF to be operated and unloaded is unloaded to avoid overloading of the P-CSCF or damage to the call of the load connected to the operation and maintenance, which improves the user experience.
  • Embodiment 4 of the present invention provides a PGW 60.
  • the PGW 60 may include:
  • the receiving unit 601 is configured to receive a status message sent by each P-CSCF managed by the PGW 60.
  • the management unit 602 is configured to manage the load on each P-CSCF managed by the PGW 60 according to the status message received by the receiving unit 601.
  • the status message may include load information used to indicate a P-CSCF access capability
  • management unit 602 can be specifically configured to:
  • each P-CSCF managed by the PGW 60 is allocated a load of a subsequent new access.
  • the status message may include bearer information used to indicate whether the P-CSCF is overloaded
  • the management unit 602 may be specifically configured to:
  • the P-CSCF other than the first P-CSCF in the P-CSCF managed by the PGW 60 is allocated a load of the subsequent new access.
  • the status message includes an indication of whether the P-CSCF is overloaded. Based on the bearer information, the status message may further include load information indicating a P-CSCF access capability;
  • the management unit 602 allocates, to the P-CSCFs other than the first P-CSCF, the load of the subsequent new access to the P-CSCF managed by the PGW 60 according to the status message, which may include:
  • the P-CSCF other than the first P-CSCF among the P-CSCFs managed by the PGW 60 is allocated a load of the subsequent new access.
  • the management unit 602 may be specifically configured to:
  • each P-CSCF managed by the PGW 60 is allocated a load of a subsequent new access.
  • the status message may include maintenance information used to indicate whether the P-CSCF is to be operated and operated;
  • the management unit 602 may be specifically configured to:
  • the P-CSCF other than the second P-CSCF in the P-CSCF managed by the PGW 60 is allocated a load of the subsequent new access.
  • the status message may further include load information for indicating a P-CSCF access capability
  • the management unit 602 allocates a load of the subsequent new access to the P-CSCF except the second P-CSCF in the P-CSCF managed by the PGW 60 according to the status message, which may include:
  • the P-CSCF other than the second P-CSCF among the P-CSCFs managed by the PGW 60 is allocated a load of the subsequent new access.
  • the management unit 602 can be specifically configured to:
  • each P-CSCF managed by the PGW 60 is allocated a load of a subsequent new access.
  • the status message may further include bearer information indicating whether the P-CSCF is overloaded;
  • the management unit 602 may be specifically configured to:
  • the third P-CSCF indicates that the P-CSCF is not ready for transport in the status message in the P-CSCF managed by the PGW 60.
  • Dimension, and the bearer information in the status message indicates the P-CSCF overloaded by the P-CSCF; or the third P-CSCF indicates that the P-CSCF is to be operated and maintained in the maintenance information in the status message in the P-CSCF managed by the PGW 60.
  • the bearer information in the status message indicates that the P-CSCF is not overloaded by the P-CSCF;
  • the P-CSCF other than the third P-CSCF among the P-CSCFs managed by the PGW 60 is allocated a load of the subsequent new access.
  • the status message may further include indicating that the P-CSCF is connected. Load information of the capacity
  • management unit 602 can be specifically configured to:
  • the P-CSCF other than the third P-CSCF among the P-CSCFs managed by the PGW 60 is allocated a load of the subsequent new access.
  • the status message may further include load information for indicating a P-CSCF access capability
  • the management unit 602 may be specifically configured to:
  • each P-CSCF managed by the PGW is allocated a load of subsequent new access.
  • the load information may include at least one of the following information: a quantity of the remaining P-CSCF that can be accessed, and a capacity ratio of the P-CSCF;
  • the management unit 602 manages the load on each P-CSCF managed by the PGW according to the load information, including:
  • the first P-CSCF address list includes an address of at least one PGW-managed P-CSCF, and the priority is according to a remaining accessible load of each P-CSCF
  • the numbers are arranged in order from high to low, or the priority is arranged in order of each P-CSCF capacity ratio from low to high.
  • the management unit 602 performs load migration, and may include:
  • the second P-CSCF address list does not include an address of the fourth P-CSCF.
  • management unit 602 can also be used to:
  • the second P-CSCF address list is sent to the load of the fourth P-CSCF in batches according to the preset rate
  • the second load update P is not received.
  • the second load immediately re-initiates an IMS PDN setup request; the second payload is any one of loads of the P-CSCF address list being sent;
  • the management unit 602 is specifically configured to:
  • the priority of the P-CSCF address included in the second P-CSCF address list is arranged in descending order of the number of remaining accessible ports of each P-CSCF, or according to each P. -CSCF capacity occupancy ratios are arranged in order from low to high.
  • management unit 602 can also be used to:
  • the newly accessed load is no longer allocated to the P-CSCF for load migration.
  • the receiving unit 601 is specifically configured to:
  • the status message sent by each P-CSCF managed by the PGW 60 is received by the forwarding of the PCRF.
  • the PGW 60 provided by the embodiment of the present invention receives the status message sent by each P-CSCF managed by the PGW; and manages the load on each P-CSCF managed by the PGW according to the status message. In this way, since the status message is fed back by the P-CSCF, the current state of each P-CSCF is dynamically reflected, and the PGW manages the load on each P-CSCF according to the status message (including management modes such as allocation and migration).
  • the load distribution is better matched to the current access capability of each P-CSCF, which improves the balance of load distribution, and also reduces the risk of overload of each P-CSCF;
  • PGW can also overload the P- The CSCF or the load on the P-CSCF to be operated and unloaded is unloaded to avoid overloading of the P-CSCF or damage to the call of the load connected to the operation, which improves the user experience.
  • Embodiment 4 of the present invention provides another PGW 60.
  • the PGW 60 may include:
  • At least one processor 701 At least one processor 701; at least one communication bus 702 for implementing connection and mutual communication between devices, a receiver 703;
  • the communication bus 702 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA). ) Bus, etc.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus.
  • the processor 701 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. integrated circuit.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • the receiver 703 is configured to receive a status message sent by each P-CSCF managed by the PGW 60.
  • the processor 701 is configured to manage the load on each P-CSCF managed by the PGW 60 according to the status message received by the receiver 703.
  • the status message may include load information used to indicate a P-CSCF access capability
  • processor 701 can be specifically configured to:
  • each P-CSCF managed by the PGW 60 is allocated a load of a subsequent new access.
  • the status message may include bearer information used to indicate whether the P-CSCF is overloaded
  • the processor 701 may be specifically configured to:
  • the P-CSCF other than the first P-CSCF in the P-CSCF managed by the PGW 60 is allocated a load of the subsequent new access.
  • the status message may further include load information indicating a P-CSCF access capability
  • the processor 701 allocates a load of the subsequent new access to the P-CSCF of the P-CSCF managed by the PGW 60 according to the status message, which may include:
  • the P-CSCF other than the first P-CSCF among the P-CSCFs managed by the PGW 60 is allocated a load of the subsequent new access.
  • the processor 701 may be specifically configured to:
  • each P-CSCF managed by the PGW 60 is allocated a load of a subsequent new access.
  • the status message may include maintenance information used to indicate whether the P-CSCF is to be operated and operated;
  • the processor 701 may be specifically configured to:
  • the P-CSCF other than the second P-CSCF in the P-CSCF managed by the PGW 60 is allocated a load of the subsequent new access.
  • the status message may further include load information for indicating a P-CSCF access capability
  • the processor 701 allocates a load of the subsequent new access to the P-CSCF of the P-CSCF managed by the PGW 60 according to the status message, which may include:
  • the P-CSCF other than the second P-CSCF among the P-CSCFs managed by the PGW 60 is allocated a load of the subsequent new access.
  • the processor 701 may be specifically configured to:
  • each P-CSCF managed by the PGW 60 is allocated a load of a subsequent new access.
  • the status message may further include bearer information indicating whether the P-CSCF is overloaded;
  • the processor 701 may be specifically configured to:
  • the third P-CSCF indicates that the P-CSCF is not maintained by the maintenance information in the status message in the P-CSCF managed by the PGW 60 Upcoming operation, and the bearer information in the status message indicates the P-CSCF overloaded by the P-CSCF; or the third P-CSCF indicates the maintenance information in the status message in the P-CSCF managed by the PGW 60.
  • the CSCF is about to be operated and maintained, and the bearer information in the status message indicates that the P-CSCF is not overloaded by the P-CSCF;
  • the P-CSCF other than the third P-CSCF among the P-CSCFs managed by the PGW 60 is allocated a load of the subsequent new access.
  • the status message may further include indicating that the P-CSCF is connected. Load information of the capacity
  • processor 701 can be specifically configured to:
  • the P-CSCF other than the third P-CSCF among the P-CSCFs managed by the PGW 60 is allocated a load of the subsequent new access.
  • the status message may further include an indication for the P-CSCF.
  • Load information of access capabilities
  • the processor 701 may be specifically configured to:
  • each P-CSCF managed by the PGW is allocated a load of subsequent new access.
  • the load information may include at least one of the following information: a quantity of the remaining P-CSCF that can be accessed, and a capacity ratio of the P-CSCF;
  • the processor 701 manages the load on each P-CSCF managed by the PGW according to the load information, including:
  • the first P-CSCF address list includes an address of at least one PGW-managed P-CSCF, and the priority is according to a remaining accessible load of each P-CSCF
  • the numbers are arranged in order from high to low, or the priority is arranged in order of each P-CSCF capacity ratio from low to high.
  • the processor 701 performs load migration, which may include:
  • the second P-CSCF address list does not include an address of the fourth P-CSCF.
  • processor 701 is further configured to:
  • the second P-CSCF address list is sent to the load of the fourth P-CSCF in batches according to the preset rate, if the second P-CSCF address list is received after the preset time period, the second load update P is not received.
  • a message of the -CSCF address to the second load Sending an IMS PND connection release message to instruct the second load to disconnect the current IMS PDN connection; wherein the IMS PDN connection release message includes indication information for instructing the second load to immediately re-initiate an IMS PDN establishment request;
  • the second load is any one of loads that are sent by the P-CSCF address list;
  • the processor 701 is specifically configured to:
  • the priority of the P-CSCF address included in the second P-CSCF address list is arranged in descending order of the number of remaining accessible ports of each P-CSCF, or according to each P. -CSCF capacity occupancy ratios are arranged in order from low to high.
  • processor 701 is further configured to:
  • the newly accessed load is no longer allocated to the P-CSCF for load migration.
  • the receiver 703 is specifically configured to:
  • the status message sent by each P-CSCF managed by the PGW 60 is received by the forwarding of the PCRF.
  • the PGW 60 provided by the embodiment of the present invention receives the status message sent by each P-CSCF managed by the PGW; and manages the load on each P-CSCF managed by the PGW according to the status message. In this way, since the status message is fed back by the P-CSCF, the current state of each P-CSCF is dynamically reflected, and the PGW manages the load on each P-CSCF according to the status message (including management modes such as allocation and migration).
  • the load distribution is better matched to the current access capability of each P-CSCF, which improves the balance of load distribution, and also reduces the risk of overload of each P-CSCF; PGW can also overload the P- CSCF or P-CSCF to be operated and maintained
  • the load on the load is unloaded to avoid overloading of the P-CSCF or damage to the call of the load connected to the operation and maintenance, which improves the user experience.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional units described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. The medium of the code.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un procédé de gestion de charge de P-CSCF et une PGW, appartenant au domaine des communications et implémentant un équilibrage de charge automatique et une migration de charge sans perte pour un service vocal VoLTE. Le procédé décrit dans les modes de réalisation de la présente invention comprend les étapes consistant à : recevoir un message d'état envoyé par chaque P-CSCF gérée par une PGW ; et, d'après le message d'état, implémenter la gestion de la charge sur chaque P-CSCF gérée par la PGW. La présente invention est utilisée pour gérer une charge de P-CSCF.
PCT/CN2015/082710 2015-06-29 2015-06-29 Procédé de gestion de charge de p-cscf, et passerelle WO2017000142A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2015/082710 WO2017000142A1 (fr) 2015-06-29 2015-06-29 Procédé de gestion de charge de p-cscf, et passerelle
CN201580031159.2A CN106464693B (zh) 2015-06-29 2015-06-29 一种p-cscf负载管理方法及pgw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/082710 WO2017000142A1 (fr) 2015-06-29 2015-06-29 Procédé de gestion de charge de p-cscf, et passerelle

Publications (1)

Publication Number Publication Date
WO2017000142A1 true WO2017000142A1 (fr) 2017-01-05

Family

ID=57607449

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/082710 WO2017000142A1 (fr) 2015-06-29 2015-06-29 Procédé de gestion de charge de p-cscf, et passerelle

Country Status (2)

Country Link
CN (1) CN106464693B (fr)
WO (1) WO2017000142A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108696557A (zh) * 2017-04-11 2018-10-23 北京京东尚科信息技术有限公司 信息处理系统、方法和装置
US20190394630A1 (en) * 2018-04-04 2019-12-26 T-Mobile Usa, Inc. Call setup logic with emerg-request-non-100 timer
WO2020212642A1 (fr) * 2019-04-16 2020-10-22 Nokia Technologies Oy Gestion de centre de données

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108737322B (zh) * 2017-04-13 2021-01-26 展讯通信（上海）有限公司 业务恢复方法、装置及移动终端
WO2021012266A1 (fr) * 2019-07-25 2021-01-28 Telefonaktiebolaget Lm Ericsson (Publ) Procédé et appareil de migration d'abonné

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1937557A (zh) * 2006-09-05 2007-03-28 华为技术有限公司 结构化对等网络系统及其负载查询、转移及资源查找方法
WO2008134959A1 (fr) * 2007-05-08 2008-11-13 Huawei Technologies Co., Ltd. Procédé et système pour réaliser un équilibrage de charge dans un réseau à commutation par paquets
JP2010288223A (ja) * 2009-06-15 2010-12-24 Hitachi Ltd 無線システム及びゲートウェイ
WO2011150564A1 (fr) * 2010-06-02 2011-12-08 华为技术有限公司 Procédé, équipement et système permettant de traiter une charge de passerelle de données

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101304366A (zh) * 2007-05-08 2008-11-12 华为技术有限公司 一种分组网络中实现负载均衡的方法、装置和系统
CN101500271A (zh) * 2008-02-01 2009-08-05 华为技术有限公司 一种实现核心网设备负载均衡的方法和设备
CN102594881B (zh) * 2012-02-08 2017-10-17 中兴通讯股份有限公司 一种虚拟机负载均衡方法、管理模块及虚拟机集群系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1937557A (zh) * 2006-09-05 2007-03-28 华为技术有限公司 结构化对等网络系统及其负载查询、转移及资源查找方法
WO2008134959A1 (fr) * 2007-05-08 2008-11-13 Huawei Technologies Co., Ltd. Procédé et système pour réaliser un équilibrage de charge dans un réseau à commutation par paquets
JP2010288223A (ja) * 2009-06-15 2010-12-24 Hitachi Ltd 無線システム及びゲートウェイ
WO2011150564A1 (fr) * 2010-06-02 2011-12-08 华为技术有限公司 Procédé, équipement et système permettant de traiter une charge de passerelle de données

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108696557A (zh) * 2017-04-11 2018-10-23 北京京东尚科信息技术有限公司 信息处理系统、方法和装置
CN108696557B (zh) * 2017-04-11 2021-08-10 北京京东尚科信息技术有限公司 信息处理系统、方法和装置
US20190394630A1 (en) * 2018-04-04 2019-12-26 T-Mobile Usa, Inc. Call setup logic with emerg-request-non-100 timer
US10687195B2 (en) * 2018-04-04 2020-06-16 T-Mobile Usa, Inc. Call setup logic with emerg-request-non-100 timer
WO2020212642A1 (fr) * 2019-04-16 2020-10-22 Nokia Technologies Oy Gestion de centre de données

Also Published As

Publication number Publication date
CN106464693B (zh) 2019-09-20
CN106464693A (zh) 2017-02-22

Similar Documents

Publication Publication Date Title
CN111771394B (zh) 用于ue上下文和pdu会话上下文管理的系统和方法
CN107113599B (zh) 重新路由nas消息的通信设备、核心网络节点、系统、计算机程序和方法
WO2017000142A1 (fr) Procédé de gestion de charge de p-cscf, et passerelle
EP3955608B1 (fr) Système de communication
US10728736B2 (en) Method and apparatus for efficiently transmitting small amounts of data in wireless communication systems
CN110365727B (zh) 通信方法和相关装置
JP2020517130A (ja) 通信方法、ソース基地局、ターゲット基地局、コアネットワークデバイス、および端末デバイス
KR102392120B1 (ko) Nf 구성요소의 예외를 처리하기 위한 방법 및 시스템, 그리고 기기
EP3512300B1 (fr) Transmission de service sur la base d'une correspondance entre un index à un identificateur de point de terminaison de tunnel, un segment d'adresse ip d'un équipement d'utilisateur et un élément de réseau d'un plan d'utilisateur
KR20120035896A (ko) Ａｐｎ 기반의 혼잡 제어의 처리 방법 및 관련 통신 장치
EP3063984A1 (fr) Allocation de ressources de découverte dispositif-dispositif dans des communications
KR102055198B1 (ko) 영상 통화 중 증강 현실 컨텐츠 제공 방법을 위한 프로그램을 기록한 컴퓨터 판독 가능한 기록매체 및 이를 위한 장치
EP3075127B1 (fr) Procede et appareil pour i-cscf à attribuer à un dispositif utilisateur un serveur s-cscf dans un système ims.
US8797856B1 (en) Feedback for machine to machine devices to account for failure of network elements
KR20170018453A (ko) 네트워크 요소 선택 엔티티 및 사용자 장비 등록 방법
CN106797585B (zh) 一种p-cscf负载管理方法及装置
CN115604184A (zh) 数据路由方法及装置
JP6623268B1 (ja) 制御プレーン機器、プログラム、システム及び情報処理装置
CN117044179A (zh) 网络切片配额管理增强
JP2016149619A (ja) 無線通信システム、ポリシー制御装置及び通信制御方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15896673

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15896673

Country of ref document: EP

Kind code of ref document: A1