WO2015100553A1 - Procédé et dispositif d'évaluation de continuité de service - Google Patents

Procédé et dispositif d'évaluation de continuité de service Download PDF

Info

Publication number
WO2015100553A1
WO2015100553A1 PCT/CN2013/090954 CN2013090954W WO2015100553A1 WO 2015100553 A1 WO2015100553 A1 WO 2015100553A1 CN 2013090954 W CN2013090954 W CN 2013090954W WO 2015100553 A1 WO2015100553 A1 WO 2015100553A1
Authority
WO
WIPO (PCT)
Prior art keywords
pdn connection
service
information
pgw
network device
Prior art date
Application number
PCT/CN2013/090954
Other languages
English (en)
Chinese (zh)
Inventor
熊春山
魏鑫鹏
时晓岩
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 CN201910413200.2A priority Critical patent/CN110430607B/zh
Priority to CN201380034764.6A priority patent/CN105009673B/zh
Priority to PCT/CN2013/090954 priority patent/WO2015100553A1/fr
Publication of WO2015100553A1 publication Critical patent/WO2015100553A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/12—Reselecting a serving backbone network switching or routing node

Definitions

  • the present invention relates to communication technologies, and in particular, to a service continuity determination method and device. Background technique
  • service continuity refers to the feature of ensuring that the ongoing network service is not interrupted. Especially in the mobile network, ensuring service continuity is an important feature of the network.
  • the continuity of network services can be implemented in a variety of ways, for example, through the relevant mechanisms of the application layer, or through the network layer, such as the mechanism of the Internet Protocol (IP) layer.
  • IP Internet Protocol
  • the continuity of some services is achieved by ensuring that the IP address of the User Equipment (UE) remains unchanged throughout the service session.
  • the IP address anchor used by the UE does not change in any state.
  • the IP address anchor here usually refers to some gateways in the network, for example, the third generation cooperation.
  • 3GPP 3rd Generation Partnership Project
  • the network selects a PGW for the UE to connect to a specific Packet Data Network (PDN), and then regardless of the UE.
  • PDN Packet Data Network
  • the mobile will allow the UE to use the previously used PGW to connect to the PDN network, that is, regardless of how the UE moves its network traffic, it will first route to the previously used PGW, and then the PGW enters the PDN network.
  • the UE starts to be located in Beijing.
  • the network selects the PGW located in Beijing. Afterwards, the UE moves to Guangzhou.
  • the UE in order to ensure the continuity of the UE service, the UE will still be located in the UE. Instead of selecting a PGW located in Guangzhou to access the PDN network, Beijing's PGW. In fact, not all services on the UE need to maintain service continuity. When there is no service in the UE that needs to maintain service continuity on a PDN connection, there is no need to maintain service continuity for the UE on the PDN connection. Sex. For a UE that does not need to maintain service continuity, if the network still selects the PGW used before, then when the UE moves to a location far away from the original PGW, the traffic flow between it and the PDN network will go through a long time. Transmission path, this will make A huge waste of routing resources.
  • SIPTO Selected IP Traffic Offload
  • the user can select a PGW that is closer to the user for the user during the mobile process.
  • the change of the PGW will cause the IP address of the UE to change. If the UE has a service that does not change the IP address before the UE exists. , then the user's previous business will be interrupted after using SIPTO. Summary of the invention
  • the embodiment of the present invention provides a service continuity determination method and device, which can ensure that services of a UE that needs to maintain service continuity are normally continuous, and can select a more suitable PGW for a UE that does not need to ensure service continuity, so that the path of the UE is better.
  • a first aspect of the present invention provides a method for processing business continuity, including:
  • the mobility management entity MME acquires service continuity information of the PDN connection of the packet data network of the user equipment UE;
  • the MME determines, according to the service continuity information of the PDN connection, whether the PDN connection needs to maintain service continuity;
  • the MME selects a new packet data gateway PGW for the UE, and instructs the UE to disconnect from the original PGW serving the UE, and instructs the UE to establish a new PDN with the new PGW.
  • the MME maintains a connection between the UE and the original PGW.
  • the mobility management entity MME acquires service continuity information of a PDN connection of a packet data network of the user equipment UE, including:
  • the network device is any one of a policy control rule formulating entity PCRF, the original PGW, and a serving gateway S-GW serving the UE.
  • the MME receives the service continuity information of the PDN connection sent by the network device, and includes:
  • the MME receives service continuity information of the PDN connection sent by the PCRF through the original PGW and the S-GW.
  • the MME receives the service continuity information of the PDN connection sent by the network device, and includes:
  • the MME receives the service continuity information of the PDN connection sent by the PCRF through the S-GW.
  • the MME when the network device is the original PGW, the MME receives the service continuity information of the PDN connection sent by the network device, including:
  • the MME receives service continuity information of the PDN connection sent by the original PGW through the SGW.
  • the MME acquires service continuity of a packet data network PDN connection of the user equipment UE Information, including:
  • the MME receives service continuity information of the PDN connection sent by the S-GW.
  • the mobility management entity MME acquires service continuity information of a PDN connection of the packet data network of the user equipment UE, including:
  • the MME acquires continuity information of each bearer on the PDN connection, and acquires the PDN connection according to continuity information of each bearer on the PDN connection.
  • Business continuity information including:
  • the MME obtains the continuity information of each bearer on the PDN connection, and determines whether each bearer on the PDN connection needs to be continuous according to the continuity information of each bearer on the PDN connection;
  • the MME determines that the service continuity of the PDN needs to be continuous
  • the MME determines that the service continuity of the PDN does not need to be continuous.
  • the MME acquires continuity information of each bearer on the PDN connection, and acquires the PDN connection according to continuity information of each bearer on the PDN connection.
  • Business continuity information including:
  • the MME obtains the continuity information of each bearer on the PDN connection, and determines whether each bearer on the PDN connection needs to be continuous according to the continuity information of each bearer on the PDN connection;
  • the MME determines whether the PDN connection satisfies the first operator selection policy
  • the MME determines that the service continuity of the PDN needs to be continuous
  • the MME determines The business continuity of the PDN is not required to be continuous.
  • the MME acquires each bearer on the PDN connection Continuity information, including:
  • the MME receives continuity information of each bearer connected to the PDN sent by the SGW or the PGW served by the UE.
  • the triggering condition is any one of the following conditions: a mobility management event occurs, a new service is initiated, an original service ends, and an evolved packet system Creation of EPS bearers, modification of EPS bearers, and deletion of EPS bearers.
  • the MME selects a new one for the UE
  • the packet data gateway PGW including:
  • the MME acquires related information of each PGW corresponding to the access point APN to which the original PDN is connected, where the information about the PGW corresponding to the APN includes: distance information between the PGW and the UE And delay information of each of the PGWs and the UE, and load information of each of the PGWs;
  • the MME selects a new PGW for the UE from the PGWs according to the related information of each PGW corresponding to the APN and the actual requirement of the UE.
  • the acquiring, by the MME, distance information of each PGW corresponding to the access point APN to which the original PDN connection belongs, and the UE includes:
  • the MME sends a DNS query request to the domain name system server DNS, and is used to query each PGW information corresponding to the APN.
  • the MME receives an Internet Protocol IP address of each PGW sent by the DNS, and the MME determines a distance between each PGW and the UE according to an IP address of each PGW.
  • the MME acquires related information of each PGW corresponding to the access point APN to which the original PDN connection belongs, including: the MME is pre-configured
  • the database queries the related information of each PGW corresponding to the access point APN to which the original PDN connection belongs.
  • the MME is the
  • the UE selects a new packet data gateway PGW, including:
  • the MME determines, according to the second operator selection policy, whether a new PGW needs to be selected for the UE.
  • the second operator selection policy is: when the PDN connection of the UE is in an EPS connection management idle state ECM-IDLE Selecting a new PGW for the UE, or selecting a new PGW for the UE when the PDN connection of the UE is in any state, or when the PDN connection of the UE does not need to maintain service continuity. A new PGW is selected for the UE.
  • a second aspect of the present invention provides a method for processing business continuity, including:
  • the network device obtains service continuity information of each service carried on the PDN connection; the network device acquires service continuity information of the PDN connection according to service continuity information of each service carried on the PDN connection;
  • the network device acquires the service continuity information of the PDN connection according to the service continuity information of each service carried on the PDN connection, including:
  • the network device determines that the service continuity of the PDN connection needs to be continuous
  • the network device determines that the service continuity of the PDN connection does not need to be continuous.
  • the network device acquires the service continuity information of the PDN connection according to the service continuity information of each service carried on the PDN connection, including:
  • the network device determines whether the PDN connection meets the first operator selection policy
  • the network device determines that the service continuity of the PDN needs to be continuous
  • the network device determines The business continuity of the PDN is not required Keep it continuous.
  • the network device is a policy control rule formula entity PCRF
  • the network device obtains service continuity information of each service carried on the PDN connection, including:
  • the PCRF receives the service flow characteristic information of each service sent by the packet detection entity TDF; the PCRF determines the service continuity of the services according to the service flow characteristic information of each service, and obtains the service continuity of the services. information.
  • the service flow characteristic information of each service includes: quintuple information of the service or application layer information of the service.
  • the PCRF determines, according to the service flow characteristic information of each service Business continuity of each business, including:
  • the PCRF determines the service continuity of the services according to the service flow characteristic information of each service and the service continuity characteristic information of various service types stored in advance or obtained from an external database.
  • the network device is a policy control rule formula entity PCRF
  • the network device obtains service continuity information of each service carried on the PDN connection, including:
  • the PCRF receives the service continuity information of the services sent by the packet detection entity TDF, where the service continuity information of each service is determined by the TDF according to the service flow characteristic information of each service.
  • the network device is a policy control rule formula entity PCRF
  • the protocol between the packet data gateway PGW and the serving gateway S-GW serving the UE is a wireless packet service technology tunnel label GTP protocol;
  • the network device sends the service continuity information of the PDN connection to the mobility management entity MME, including:
  • the network device is a policy control rule formulating entity PCRF
  • the protocol between the PGW serving the UE and the S-GW is the Proxy Mobile Internet Protocol version 6 PMIPv6 protocol;
  • the network device sends the service continuity information of the PDN connection to the mobility management entity MME, including:
  • the PCRF sends the service continuity information of the PDN connection to the MME through the S-GW.
  • the network device is configured to serve the UE
  • the PGW the network device acquires service continuity information of each service carried on the PDN connection, and includes:
  • the PGW receives the service continuity information of each service carried on the PDN connection sent by the PCRF, where the service continuity of each service carried on the PDN connection is determined by the PCRF according to the service flow characteristics of each service. Information determination;
  • the network device sends the service continuity information of the PDN connection to the mobility management entity MME, including:
  • the PGW sends the service continuity information of the PDN connection to the MME by using an SGW serving the UE.
  • the network device is configured to serve the UE
  • the PGW the network device acquires service continuity information of each service carried on the PDN connection, and includes:
  • the PGW acquires service flow characteristic information of each service when a new service is initiated or terminated on the PDN connection;
  • the network device is The SGW of the UE, the network device acquiring the service continuity information of each service carried on the PDN connection, including:
  • the SGW receives the service continuity information of each service carried on the PDN connection sent by the PCRF, where the service continuity of each service carried on the PDN connection is determined by the PCRF according to the service flow characteristics of each service. Information is determined.
  • the network device is an SGW that serves the UE, and the network device obtains service continuity information of each service carried on the PDN connection, including:
  • the SGW receives the service continuity information of each service carried on the PDN connection sent by the PCRF, where the service continuity of each service carried on the PDN connection is determined by the PCRF according to the service flow characteristics of each service. Information determination;
  • the network device obtains, by the network device, the service continuity information of the PDN connection according to the service continuity information of each service carried on the PDN connection, including:
  • the SGW determines that the service continuity of the PDN connection needs to be continuous
  • the SGW determines that the service continuity of the PDN connection does not need to be continuous.
  • the network device is an SGW that serves the UE, and the network device obtains service continuity information of each service carried on the PDN connection, including:
  • the SGW receives the service continuity information of each service carried on the PDN connection sent by the PCRF, where the service continuity of each service carried on the PDN connection is determined by the PCRF according to the service flow characteristic information of each service. ;
  • the network device obtains, by the network device, the service continuity information of the PDN connection according to the service continuity information of each service carried on the PDN connection, including:
  • the SGW determines whether the PDN connection satisfies the first operator selection policy
  • the SGW determines that the service continuity of the PDN needs to be continuous
  • the SGW determines The business continuity of the PDN is not required to be continuous.
  • the network device sends the service continuity information of the PDN connection to the mobile management entity MME, including:
  • the network device determines that the service continuity of the PDN connection changes, and the network device sends the service continuity information of the PDN connection to the MME.
  • the network device sends the service continuity information of the PDN connection to the mobility management entity MME, including:
  • the network device After the preset time length, the network device sends the service continuity information of the PDN connection to the MME.
  • a third aspect of the present invention provides a mobility management entity MME, including:
  • the obtaining module 12 is configured to obtain service continuity information of the PDN connection of the packet data network of the user equipment UE;
  • a determining module configured to determine, according to the service continuity information of the PDN connection, whether the PDN connection needs to maintain service continuity when the trigger condition is met;
  • a gateway selection module configured to: when the determination result of the determining module is yes, select a new packet data gateway PGW for the UE, and instruct the UE to disconnect from an original PGW serving the UE, and indicate Establishing, by the UE, a new PDN connection with the new PGW;
  • connection maintaining module configured to maintain a connection between the UE and the original PGW when the determining result of the determining module is negative.
  • the acquiring module is specifically configured to: receive service continuity information of the PDN connection sent by a network device, where The service continuity information of the PDN connection is determined by the network device according to continuity information of each service carried on the PDN connection.
  • the network device is any one of a policy control rule formulating entity PCRF, the original PGW, and a serving gateway S-GW serving the UE.
  • the obtaining module is specifically configured to:
  • the obtaining module is specifically configured to:
  • the acquiring module is specifically configured to:
  • the acquiring module is specifically configured to:
  • the determining module is specifically used to:
  • the determining module is specifically used to:
  • the determining module is specifically used to:
  • the determining module is specifically used to:
  • the triggering condition is any one of the following conditions : Mobility management event occurrence, new service initiation, legacy service termination, evolution of packet system EPS bearer, modification of EPS bearer, and deletion of EPS bearer.
  • the gateway selection module includes:
  • an acquiring unit configured to acquire information about each PGW corresponding to the access point APN to which the original PDN connection belongs, where the related information of each PGW corresponding to the APN includes: the PGW and the UE Distance information, delay information of each of the PGWs and the UE, Load information of each of the PGWs;
  • a determining unit configured to select a new PGW for the UE from the PGWs according to related information of each PGW corresponding to the APN and an actual requirement of the UE.
  • the acquiring unit is specifically configured to:
  • the acquiring unit is specifically configured to:
  • the information about each PGW corresponding to the access point APN to which the original PDN connection belongs is queried from the pre-configured database.
  • the gateway selection module is specifically configured to:
  • the second operator selection policy is: when the PDN connection of the UE is in an EPS connection management idle state ECM-IDLE state, being the UE Selecting a new PGW, or selecting a new PGW for the UE when the PDN connection of the UE is in any state, or selecting a new one for the UE when the PDN connection of the UE does not need to maintain service continuity PGW.
  • a fourth aspect of the present invention provides a network device, including:
  • a first obtaining module configured to obtain service continuity information of each service carried on the PDN connection
  • a second obtaining module configured to acquire service continuity information of the PDN connection according to service continuity information of each service carried on the PDN connection;
  • a sending module configured to send the service continuity information of the PDN connection to the mobility management entity MME.
  • the second acquiring module is specifically configured to: Determining whether the services need to maintain a connection according to service continuity information of each service carried on the PDN connection;
  • the second acquiring module is specifically configured to:
  • the network device is a policy control rule formula entity PCRF
  • the first acquiring module includes:
  • a receiving unit configured to receive service flow characteristic information of each service sent by the packet detection entity TDF;
  • a determining unit configured to determine service continuity of each service according to the service flow characteristic information of each service, and obtain service continuity information of each service.
  • the service flow characteristic information of each service includes: quintuple information of the service or application layer information of the service.
  • the determining unit is specifically configured to:
  • the network device is a policy control rule formula entity PCRF
  • the first acquiring module is specifically configured to:
  • the service continuity information of the services sent by the packet detection entity TDF is received, where the service continuity information of each service is determined by the TDF according to the service flow characteristic information of each service.
  • the network device is a policy control rule formula entity PCRF
  • the protocol between the packet data gateway PGW and the serving gateway S-GW serving the UE is a wireless packet service technology tunnel label GTP protocol;
  • the sending module is specifically configured to: send the service continuity information of the PDN connection to the MME by using the PGW and the S-GW.
  • the network device is a policy control rule formula entity PCRF
  • the protocol between the PGW serving the UE and the S-GW is the Proxy Mobile Internet Protocol version 6 PMIPv6 protocol;
  • the sending module is specifically configured to: send the service continuity information of the PDN connection to the MME by using the S-GW.
  • the network device is configured to serve the UE
  • the PGW the second acquiring module is specifically configured to:
  • the sending module is specifically configured to: send the service continuity information of the PDN connection to the MME by using an SGW serving the UE.
  • the network device is configured to serve the UE
  • the PGW the first acquiring module is specifically configured to: Obtaining service flow characteristic information of each service when a new service is initiated or terminated on the PDN connection;
  • the network device is configured to serve the UE
  • the SGW the first acquiring module is specifically configured to:
  • the service continuity information of each service carried on the PDN connection sent by the PCRF is received, where the service continuity of each service carried on the PDN connection is determined by the PCRF according to the service flow characteristic information of each service.
  • the network device is an SGW that serves the UE, where the first acquiring module is specifically configured to:
  • the second obtaining module includes:
  • a bearer continuity determining unit configured to determine continuity of each bearer on the PDN connection according to service continuity information of each service carried on the PDN connection;
  • a determining unit configured to determine, according to continuity information of each bearer on the PDN connection, whether each bearer on the PDN connection needs to be continuous;
  • a continuity determining unit of the PDN connection configured to determine, according to the judgment result of the determining unit, whether the PDN connection needs to be kept continuous
  • the continuity determining unit of the PDN connection determines that the service continuity of the PDN connection needs to be continuous; if all the bearers on the PDN connection do not need to be maintained Continuously, the continuity determining unit of the PDN connection determines that the service continuity of the PDN connection does not need to be continuous.
  • the network device is an SGW that serves the UE, and the first acquiring module is specifically configured to:
  • the second obtaining module includes:
  • a bearer continuity determining unit configured to determine continuity of each bearer on the PDN connection according to service continuity information of each service carried on the PDN connection;
  • a determining unit configured to determine, when the bearer continuity determining unit determines that any one of the PDN connections needs to remain continuous, determine whether the PDN connection meets a first operator selection policy
  • a continuity determining unit of the PDN connection configured to determine, according to the judgment result of the determining unit, whether the PDN connection needs to be kept continuous
  • the continuity determining unit of the PDN connection determines that the service continuity of the PDN needs to be continuous
  • the continuity determining unit determines that the business continuity of the PDN does not need to be continuous.
  • the sending module is specifically configured to:
  • the service continuity information of the PDN connection is sent to the MME.
  • the sending module is specifically configured to:
  • a fifth aspect of the present invention provides a mobility management entity MME, including:
  • a receiver configured to acquire service continuity information of a PDN connection of a packet data network of a user equipment UE;
  • a processor configured to determine, according to the service continuity information of the PDN connection, whether the PDN connection needs to maintain service continuity when the trigger condition is met;
  • the processor selects a new packet data gateway PGW for the UE, and instructs the UE to disconnect from the original PGW serving the UE, and instructs the UE to establish a new with the new PGW. PDN connection; If so, the processor maintains the UE's connection with the original PGW.
  • the receiver is specifically configured to:
  • the service continuity information of the PDN connection sent by the network device is received, where the service continuity information of the PDN connection is determined by the network device according to continuity information of each service carried on the PDN connection.
  • the network device is any one of a policy control rule formulating entity PCRF, the original PGW, and a serving gateway S-GW serving the UE.
  • the receiver is specifically configured to:
  • the receiver is specifically configured to:
  • the receiver when the network device is the original PGW, the receiver is specifically configured to:
  • the receiver is specifically configured to:
  • the receiver is specifically used to:
  • the receiver is specifically configured to:
  • the receiver is specifically used to:
  • the MME determines The business continuity of the PDN is not required to be continuous.
  • the receiver is specifically configured to: The continuity information of each bearer on the PDN connection sent by the SGW or the PGW of the UE service.
  • the trigger condition is any one of the following conditions : Mobility management event occurrence, new service initiation, legacy service termination, evolution of packet system EPS bearer, modification of EPS bearer, and deletion of EPS bearer.
  • each PGW corresponding to the access point APN to which the original PDN connection belongs includes: distance information of each PGW and the UE, and the Delay information of each PGW and the UE, and load information of each PGW;
  • the method further includes:
  • a transmitter configured to send a DNS query request to the domain name system server DNS, for querying each P G W information corresponding to the APN;
  • the receiver is further configured to: receive an internet protocol IP address of each PGW sent by the DNS;
  • the processor is specifically configured to: determine, according to an IP address of each PGW received by the receiver, a distance between each PGW and the UE.
  • the processor is specifically used to:
  • the information about each PGW corresponding to the access point APN to which the original PDN connection belongs is queried from the pre-configured database.
  • the processor is specifically used to:
  • the second operator selection policy is: when the PDN connection of the UE is in an EPS connection management idle state ECM-IDLE, selecting the UE a new PGW, or, when the PDN connection of the UE is in any state, does not need to select a new PGW for the UE, or select a new PGW for the UE when the PDN connection of the UE does not need to maintain service continuity. .
  • a sixth aspect of the present invention provides a network device, including:
  • a receiver configured to obtain service continuity information of each service carried on the PDN connection
  • the processor configured to acquire the PDN connection according to service continuity information of each service carried on the PDN connection acquired by the receiver Business continuity information
  • a transmitter configured to send the service continuity of the PDN connection to a mobility management entity MME
  • the processor is specifically used to:
  • the processor is specifically used to:
  • the network device is a policy control rule formulating entity PCRF
  • the receiver is specifically configured to:
  • the service flow characteristic information of each service includes: quintuple information of the service or application layer information of the service.
  • the receiver is specifically configured to:
  • the service continuity of the respective services is determined according to the service flow characteristic information of each service, and the service continuity characteristic information of various service types stored in advance or obtained from an external database.
  • the network device is a policy control rule formula entity PCRF
  • the receiver is specifically configured to:
  • the service continuity information of the services sent by the packet detection entity TDF is received, where the service continuity information of each service is determined by the TDF according to the service flow characteristic information of each service.
  • the network device is a policy control rule formulating entity PCRF
  • the protocol between the packet data gateway PGW and the serving gateway S-GW serving the UE is a wireless packet service technology tunnel label GTP protocol;
  • the transmitter is specifically configured to: send, by the PGW and the S-GW, the service continuity information of the PDN connection to the MME.
  • the network device is a policy control rule formula entity PCRF
  • the protocol between the PGW serving the UE and the S-GW is the Proxy Mobile Internet Protocol version 6 PMIPv6 protocol;
  • the transmitter is specifically configured to: send, by using the S-GW, service continuity information of the PDN connection to the MME.
  • the network device is configured to serve the UE
  • the PGW the receiver is specifically configured to:
  • the transmitter is specifically configured to: send, by the SGW serving the UE, the service continuity information of the PDN connection to the MME.
  • the network device is configured to serve the UE
  • the receiver is specifically configured to:
  • the PGW acquires service flow characteristic information of each service when a new service is initiated or terminated on the PDN connection;
  • the network device is configured to serve the UE
  • the SGW the receiver is specifically configured to: receive service continuity information of each service carried on the PDN connection sent by the PCRF, where service continuity of each service carried on the PDN connection is determined by the PCRF The service flow characteristic information of each service is determined.
  • the network device is an SGW that serves the UE, and the receiver is specifically configured to:
  • the processor is specifically configured to: determine continuity of each bearer on the PDN connection according to service continuity information of each service carried on the PDN connection;
  • the network device is an SGW that serves the UE, and the receiver is specifically configured to:
  • the processor is specifically configured to: determine continuity of each bearer on the PDN connection according to service continuity information of each service carried on the PDN connection;
  • the transmitter is specifically used to:
  • the service continuity information of the PDN connection is sent to the MME.
  • the transmitter is specifically configured to:
  • the service continuity information of the PDN connection is sent to the MME.
  • the embodiment of the present invention provides a service continuity determination method and device, where the MME obtains the service continuity information of the PDN connection of the UE, and determines whether the PDN connection needs to maintain the service continuity according to the service continuity information of the PDN connection; if the PDN connection does not need to be maintained If the service is continuous, the MME selects a new PGW for the UE. If the PDN connection needs to keep the service continuous, the MME maintains the UE's connection with the original PGW.
  • the foregoing method can ensure that the services of the UEs that need to maintain service continuity are normally continuous, and select a more suitable PGW for the UE that does not need to ensure service continuity without affecting the service continuity of each service in the PDN connection.
  • the UE has a better path and saves routing resources.
  • Figure 1 is a schematic diagram of the basic architecture of a 3GPP network
  • Embodiment 1 is a flowchart of Embodiment 1 of a method for processing business continuity of the present invention
  • Embodiment 3 is a flowchart of Embodiment 2 of a method for processing service continuity according to the present invention
  • Embodiment 4 is a signaling flowchart of Embodiment 3 of a method for processing service continuity according to the present invention
  • FIG. 5 is a signaling flowchart of Embodiment 4 of a method for processing service continuity according to the present invention.
  • Embodiment 6 is a signaling flowchart of Embodiment 5 of a method for processing service continuity according to the present invention.
  • Embodiment 7 is a signaling flowchart of Embodiment 6 of a method for processing service continuity according to the present invention.
  • Embodiment 8 is a signaling flowchart of Embodiment 7 of a method for processing service continuity according to the present invention.
  • FIG. 9 is a signaling flowchart of Embodiment 8 of a method for processing service continuity according to the present invention
  • FIG. 10 is a signaling flowchart of Embodiment 9 of a method for processing service continuity according to the present invention
  • FIG. 11 is a flowchart of a mobility management entity according to the present invention; a schematic diagram of the structure;
  • Embodiment 12 is a schematic structural diagram of Embodiment 2 of a mobility management entity according to the present invention.
  • Embodiment 13 is a schematic structural diagram of Embodiment 1 of a network device according to the present invention.
  • Embodiment 3 of a mobility management entity is a schematic structural diagram of Embodiment 3 of a mobility management entity according to the present invention.
  • FIG. 15 is a schematic structural diagram of Embodiment 2 of a network device according to the present invention. detailed description
  • FIG. 1 is a schematic diagram of a basic architecture of a 3GPP network. As shown in FIG. 1 , in this architecture, access is required.
  • a Packet Data Network (PDN) the UE needs to be connected to a specific PGW, which is responsible for allocating the IP address of the PDN network to the UE.
  • the PGW that can be connected to a PDN in the 3GPP network may be There will be more than one.
  • the network between the UE and the PGW is the network of the operator, and the main network
  • An evolved universal terrestrial radio access network e-UTRAN
  • MME Mobility Management Entity
  • HSS Home Subscriber Server
  • SGW Service A gateway
  • PCRF Policy Control Rule Function
  • TDF Traffic Detection Function
  • the solution of the present invention can be mainly divided into two aspects: the first aspect, judging the service continuity characteristic of a certain PDN connection of the UE, and determining whether the PDN connection needs to be continuous; the second aspect, the network device is based on the obtained PDN.
  • the connected service continuity information is a process for the UE to select an appropriate PGW selection.
  • FIG. 2 is a flowchart of a method for processing a service continuity of the present invention.
  • a process in which the MME selects a suitable PGW for the UE according to the obtained service continuity information is as described in FIG.
  • the business continuity method provided includes the following steps:
  • Step 101 The MME obtains service continuity information of the PDN connection of the UE.
  • the service continuity refers to whether the service of the user is allowed to be interrupted. That is, when the IP address used by the UE changes, whether the ongoing service of the UE can continue to be normal. If the IP address of the UE changes, the services being performed by the UE are not affected, and the service can still be performed normally. This type of service is called a service that does not need to maintain service continuity. For example, the service that the user accesses the Web page, when the IP of the UE When the address changes, it does not affect the user's access to the Web page. Therefore, the service accessing the Web page is a service that does not need to maintain business continuity. If the IP address of the UE changes, the service is interrupted by the UE.
  • VoIP Voice over Internet Protocol
  • VoIP service a service that needs to maintain service continuity
  • VoIP service Called VoIP, if the IP address of the UE changes during the call, then the normal pass The call process is interrupted, so the VoIP service is a service that needs to maintain business continuity.
  • IP layer The mechanism of the network layer is mainly implemented by ensuring that the IP address of the UE remains unchanged throughout the service session.
  • IP address anchor used in any state (for example, the mobile state).
  • the IP address anchor here usually refers to some gateways in the network. For example, the PGW in the 3GPP network, as long as the PGW used by the UE is unchanged, the IP address of the UE remains unchanged.
  • the service continuity information of the PDN connection or the service continuity information of each service carried on the PDN connection includes the following three situations: (a) need to maintain service continuity; (b) only in the evolved group Evolved Packet System (EPS) EPS Connection Management-CONNECED (ECM-CONNECED) needs to maintain business continuity; (c) does not need to maintain business continuity, etc., only three are listed here.
  • Business continuity information but the invention is not limited thereto, and the continuity information of the service may also include other information.
  • the MME obtains the service continuity information of the PDN connection of the UE, and can adopt the following two methods:
  • the MME receives the service continuity information of the PDN connection sent by the network device, where the service continuity information of the PDN connection is determined by the network device according to the continuity information of each service carried on the PDN connection.
  • the network device may be any one of a Policy Control Rule Function (PCRF), an original PGW, and a serving gateway S-GW serving the UE.
  • PCRF Policy Control Rule Function
  • the PCRF, the original PGW, and the SGW can determine the service continuity of the PDN connection according to the continuity information of each service carried on the PDN connection.
  • the MME receives the network device.
  • the service continuity information of the sent PDN connection is specifically: The MME receives the service continuity information of the PDN connection sent by the PCRF through the original PGW and the S-GW. After the PCRF determines the service continuity of the PDN connection, the service continuity information of the PDN connection is sent to the original PGW, and the original PGW is sent to the SGW. Sent to the MME by the SGW.
  • GPRS General Packet Radio Service
  • GTP General Packet Radio Service
  • the MME receives the PDN connection service sent by the network device.
  • the continuity information is specifically: The MME receives the service continuity information of the PDN connection sent by the PCRF through the S-GW. That is, after the PCRF determines the service continuity of the PDN connection, the service continuity information of the PDN connection is directly sent to the SGW, and is sent by the SGW to the MME. In this process, the service continuity information of the PDN connection is not sent to the original PGW.
  • the MME receives the service continuity information of the PDN connection sent by the network device, specifically: the MME receives the service continuity information of the PDN connection sent by the original PGW through the SGW. That is, after the PGW determines the service continuity of the PDN connection, the service continuity information of the PDN connection is sent to the SGW, and then sent by the SGW to the MME.
  • the MME obtains the service continuity information of the PDN connection of the packet data network of the user equipment UE, specifically: the MME receives the service continuity information of the PDN connection sent by the S-GW. That is, after the SGW determines the service continuity of the PDN connection, the SGW directly sends the service continuity information of the PDN connection to the MME.
  • the MME obtains the continuity information of each bearer on the PDN connection, and obtains the service continuity information of the PDN connection according to the continuity information of each bearer on the PDN connection.
  • the MME obtains the continuity information of each bearer on the PDN connection, and specifically: the MME receives the continuity information of each bearer on the PDN connection sent by the SGW or the PGW served by the UE.
  • the MME obtains the service continuity information of the PDN connection according to the continuity information of the bearers on the PDN connection, and specifically: the MME determines whether the bearers on the PDN connection need to be continuous according to the continuity information of the bearers on the PDN connection; The MME determines that the service continuity of the PDN needs to be continuous; if all the bearers on the PDN connection do not need to be continuous, the MME determines that the service continuity of the PDN does not need to be continuous.
  • the MME determines whether the PDN connection satisfies the first operator selection policy, and if the PDN connection satisfies the first operator selection policy, the MME determines The service continuity of the PDN needs to be continuous; if all the bearers on the PDN connection do not need to be continuous, or any one of the PDN connections needs to be continuous, but the PDN connection If the first operator selection policy is not satisfied, the MME determines that the service continuity of the PDN does not need to be continuous.
  • the first carrier selection policy may include a type of PDN connection that needs to maintain service continuity, and the operator may formulate different policies for different types of PDN connections when formulating the first operator selection policy, some PDNs. Connections need to maintain business continuity, and other PDN connections do not need to maintain business continuity.
  • the MME determines whether the PDN connection needs to remain connected according to the type of the current PDN connection.
  • the first carrier selection policy may further include the subscription information of the user, where the subscription information of the user records the service continuity information of the PDN, that is, the PDN needs to maintain service continuity or does not need to maintain service continuity, and the MME may It is determined whether the PDN connection needs to remain connected according to the service continuity information of the PDN recorded in the user subscription information.
  • the first carrier selection policy is determined by the operator, and the policies formulated by the different operators may be different. Therefore, the first operator selection policy mentioned in the embodiments of the present invention may also be other policies, and the present invention does not limit.
  • Step 102 When the trigger condition is met, the MME determines, according to the service continuity information of the PDN connection, whether the PDN connection needs to be continuous.
  • the MME determines whether the PDN connection needs to be continuous according to the service continuity information of the PDN connection, where the trigger condition may be any one of the following conditions: mobility management Event occurrence, new service initiation, end of legacy service, creation of EPS bearer, modification of EPS bearer, and deletion of EPS.
  • the creation of the EPS bearer, the modification of the EPS bearer, and the deletion of the EPS are both session management events.
  • the MME determines that the UE has performed location update, or the UE switches to a new MME, or has an event related to the PDN connection.
  • the MME determines whether the PDN connection needs to be continuous according to the service continuity information of the PDN connection, that is, the MME determines whether it is necessary to select a new PGW for the UE.
  • the event related to the PDN connection may specifically refer to: Initiate or end, create, modify, and delete EPS Bearer. If the result of the determination is no, step 103 is performed. If the result of the determination is yes, then step 104 is performed.
  • Step 103 The MME selects a new PGW for the UE, and instructs the UE to disconnect from the original PGW serving the UE, and instructs the UE to establish a new PDN connection with the new PGW.
  • the UE may select a new PGW for the UE, and the MME selects a new PGW for the UE,
  • the MME obtains information about each PGW corresponding to an Access Point Name (APN) to which the original PDN is connected, where the information about each PGW corresponding to the APN includes: distance information between each PGW and the UE.
  • APN Access Point Name
  • the MME obtains the distance information of the PGWs of the PGWs corresponding to the APNs to which the original PDN connection belongs, and specifically: the MME sends a DNS query request to the DNS server by using a standard Domain Name System (DNS) query process.
  • DNS Domain Name System
  • the DNS server returns the IP address of each PGW corresponding to the APN to which the original PDN connection belongs to the MME
  • the MME receives the IP address of each PGW corresponding to the APN to which the original PDN connection is sent by the DNS, according to The IP address of each PGW and the location information of the UE determine the distance between each PGW and the UE.
  • the MME may generate a distance sorting list of the PGW according to the distance between each PGW and the UE, or generate a delay sorting list of the PGW according to the delay of each PGW and the UE, or according to the load of each PGW from small to large.
  • the load list of the PGW is generated, and the optimal PGW is selected according to the sorted list.
  • the location information of the UE may be a Cell Identity (cell ID), a Tracking Area Identity (TAI), or Base station identification (eNB ID), etc.
  • the MME obtains information about each PGW corresponding to the APN to which the original PDN connection belongs, and may also: query the information about each PGW corresponding to the APN to which the original PDN connection belongs from the pre-configured database, of course, The MME can also obtain information about the PGW from the Operation Administration and Maintenance (OAM) center or other external database.
  • OAM Operation Administration and Maintenance
  • the criterion for the MME to select a suitable PGW for the UE may include multiple aspects, such as the MME selecting a PGW that is closest to the current location of the UE, or selecting a smaller PGW, or selecting a PGW with a shorter routing path between the UEs, and the like.
  • the MME may also need to consider the network policy of the operator, that is, the MME needs to determine whether to select a new PGW for the UE according to the second operator selection policy, and meet the second operator selection policy.
  • the MME selects a new PGW for the UE, and the second operator selection policy is determined by the operator.
  • the second operator selection policy may be: when the PDN connection of the UE is in the ECM-IDLE state, the new PGW is selected for the UE. Or, it is not required when the PDN connection of the UE is in any state. Selecting a new PGW for the UE, or selecting a new PGW for the UE when the PDN connection of the UE does not need to maintain service continuity, or, in any case, does not select a new PGW for the UE.
  • the selection strategy formulated by different operators may be different.
  • the second carrier selection policy may also be other policies, and the present invention does not limit this.
  • the second operator selects a policy to select a new PGW for the UE when the PDN connection of the UE is in the EPS Connection Management-IDLE (ECM-IDLE)
  • ECM-IDLE EPS Connection Management-IDLE
  • the MME selects a new PGW for the UE only when the PDN connection of the UE is in the ECM-IDLE state. If the PDN connection of the UE is in the ECM-CONNECTION state, the PDN connection of the UE needs to be Keeping continuous, the MME cannot select a new PGW for the UE.
  • the UE's PDN connection has an ECM-CONNECED state and an ECM-IDLE state.
  • ECM-CONNECED state the UE is connected to the network to perform normal services.
  • ECM-IDLE state the UE is in an idle state, and the UE is disconnected from the network. The UE has no service.
  • the MME determines to select a new PGW for the PDN connection of the UE, initiates a process of disconnecting the PDN connection between the UE and the original PGW, and requests the UE to initiate a new PDN connection establishment process based on the same APN, in which the MME initiates the UE.
  • PDN connection disconnection process which deletes all context information related to the PDN connection in the network.
  • the MME instructs the UE to use the original PDN to connect to the APN to select a new PGW, and then completes the establishment of a new PDN connection between the UE and the new PGW.
  • Step 104 The MME maintains a connection between the UE and the original PGW.
  • the MME determines that the PDN connection needs to be continuous according to the service continuity information of the PDN connection, it indicates that the service carried in the PDN connection needs to be continuous.
  • the IP address of the UE needs to be kept unchanged. , The new PGW cannot be selected for the UE, and the UE still uses the original PGW for communication.
  • the method provided in this embodiment obtains the service continuity information of the PDN connection of the UE, and determines whether the PDN connection needs to maintain the service continuity according to the service continuity information of the PDN connection. If the PDN connection does not need to maintain the service continuity, the UE selects the UE. The new PGW, if the PDN connection needs to keep the traffic continuous, then keep the UE connected to the original PGW.
  • the foregoing method can ensure that the services of the UEs that need to maintain service continuity are normal and continuous, and do not need to ensure service continuity without affecting the service continuity of each service in the PDN connection.
  • the UE selects a more suitable PGW, which makes the UE's path better and saves routing resources.
  • FIG. 3 is a flowchart of Embodiment 2 of a method for processing service continuity according to the present invention.
  • a service continuity characteristic of a PDN connection of a UE is determined, and it is determined whether the PDN connection needs to be continuous.
  • the service continuity processing method provided in this embodiment includes the following steps:
  • Step 201 The network device acquires service continuity information of each service carried on the PDN connection.
  • the network device may be any one of a PCRF, a PGW serving the UE, or an SGW.
  • the network device When the network device is a PCRF, the network device obtains the service continuity information of each service carried on the PDN connection in two ways: The first acquisition mode, and the PCRF packet detection entity (Traffic Detection Function, TDF) The service flow characteristic information of each service; the PCRF determines the service continuity of each service according to the service flow characteristic information of each service, and obtains business continuity information of each service.
  • TDF Traffic Detection Function
  • the second acquisition mode the PCRF receives the service continuity information of each service sent by the TDF, where the service continuity information of each service is determined by the TDF according to the service flow characteristic information of each service.
  • the TDF detects the start and end of each service carried on the PDN connection.
  • the specific detection method may be, for example, a deep packet. Detecting (Deep Packet Inspection, DPI) technology, and obtaining service flow characteristic information of the service according to the detection result, where the service flow characteristic information may be any information related to the service flow, such as quintuple information of the service or Application layer information of the service.
  • the quintuple information of the service includes: original IP address, destination IP address, original port number, destination port number, and protocol type.
  • the PCRF determines the service continuity of each service according to the service flow characteristic information of each service, specifically: the PCRF is based on the service flow characteristic information of each service, and is pre-stored or The business continuity characteristic information of various services obtained by the external database (third-party service platform or DPI database) determines the business continuity of each service. That is, the business continuity information of each service is pre-stored on the PCRF, that is, which service needs to maintain continuity, which service does not need to maintain continuity, and then, according to the acquired service flow The information is matched with the business continuity of the pre-stored services.
  • the PCRF stores the business continuity information of the QQ service and the VoIP service, and the service continuity information of the QQ service does not need to maintain continuity, and the VoIP The service continuity information of the service needs to be kept continuous.
  • the PCRF determines whether the service is a QQ service according to the information of the quintuple information and the application layer information in the obtained service feature flow information. If it is a QQ service, it determines that the service is not Business continuity needs to be maintained. If the service is a VoIP service, it is determined that the service needs to maintain business continuity.
  • the TDF detects the service, and after obtaining the service flow characteristic information of the service, determines the service continuity of the service according to the service flow characteristic information of the service, and the TDF can adopt the same method as the PCRF according to the service flow characteristic information. Determine the business continuity of the business, and will not go into details here.
  • the network device When the network device is a PGW serving the UE, the network device obtains the service continuity information of each service carried on the PDN connection, and the method is as follows: The first acquisition mode, the PGW receives the PDN connection sent by the PCRF. The service continuity information of the service, where the service continuity of each service carried on the PDN connection is determined by the PCRF according to the service flow characteristic information of each service. In the second acquisition mode, when a new service is initiated or terminated on the PDN connection, the PGW obtains the service flow characteristic information of each service, and the PGW determines the service continuity of each service according to the service flow characteristic information of each service, and obtains the service continuity of each service. Business continuity information. The service flow characteristic information of each service can be detected by the TDF and then sent to the PGW.
  • the network device When the network device is the SGW that serves the UE, the network device obtains the service continuity information of each service carried on the PDN connection, where the SGW receives the service continuity information of each service carried on the PDN connection sent by the PCRF, where, the PDN The service continuity of each service carried on the connection is determined by the PCRF according to the service flow characteristic information of each service.
  • Step 202 The network device acquires service continuity information of the PDN connection according to the service continuity information of each service carried on the PDN connection.
  • the network device obtains the service continuity information of the PDN connection according to the service continuity information of each service carried on the PDN connection, and specifically: the network device determines whether each service needs to be maintained according to the service continuity information of each service carried on the PDN connection. Continuously; if any one of the services carried on the PDN connection needs to be continuous, the network device determines that the service continuity of the PDN connection needs to be continuous; if all the services carried on the PDN connection are Without continuing to be contiguous, the network device determines that the business continuity of the PDN connection does not need to be continuous.
  • the network device determines that any one of the services carried on the PDN connection needs to be continuous, and the network device determines whether the PDN connection satisfies the first operator selection policy, if the PDN connection meets the first carrier selection.
  • the policy determines that the service continuity of the PDN needs to be continuous; if all the services on the PDN connection do not need to be continuous, or any service on the PDN connection needs to be continuous, but the PDN connection does not meet the first carrier selection.
  • the policy then the network device determines that the service continuity of the PDN connection does not need to be continuous.
  • Business continuity information for PDN connections includes: (a) business continuity needs to be maintained; (b) business continuity does not need to be maintained; (c) business continuity needs to be maintained only in the ECM-CONNECTED state.
  • the network device updates the service continuity information of the PDN connection according to the service continuity information of the service.
  • the principle of judging the service continuity of the entire PDN connection by the service continuity information of each service is: The PDN connection is not required only when all the services carried on the PDN connection do not need to maintain service continuity. Maintain business continuity; if there is a service in the PDN connection that needs to maintain business continuity, the PDN connection needs to maintain business continuity.
  • the service continuity information of each service of the PDN connection has priority, and the priority of the business continuity is (a), (b), (c), and the business continuity of the PDN connection is high. It is consistent with the business continuity of the highest priority service in the PDN connection.
  • the network device may maintain a counter for the service continuity of each service in the context of the PDN connection, and the counter is used for recording The number of services of the business continuity corresponding to the counter, the initial value of the counter is 0. Whenever a service is established, the corresponding counter of the service continuity corresponding to the service is incremented by one, whenever a service ends. The value of the counter corresponding to the service continuity corresponding to the service is decremented by 1. The value of the counter is 0, indicating that there is no service in the PDN connection that needs to maintain service continuity.
  • the network device obtains the service continuity information of the PDN connection according to the service continuity information of each service carried on the PDN connection, specifically: the SGW is based on the PDN.
  • the service continuity information of each service carried on the connection determines the continuity of the bearers on the PDN connection.
  • the SGW determines whether the bearers on the PDN connection need to be continuous according to the continuity information of the bearers on the PDN connection; if any of the PDN connections are contiguous; If a bearer needs to be continuous, the SGW determines that the service continuity of the PDN needs to be continuous; if all bearers on the PDN connection do not need to remain contiguous, the SGW determines that the service continuity of the PDN does not need to be continuous.
  • the SGW determines the continuity of each bearer on the PDN connection according to the service continuity information of each service carried on the PDN connection. If any one of the PDN connections needs to be continuous, the SGW further determines whether the PDN satisfies the carrier first. If the PDN connection satisfies the first carrier selection policy, the SGW determines that the service continuity of the PDN needs to be continuous; if all the bearers on the PDN connection do not need to be continuous, or any one of the PDN connections needs to be continuous However, the PDN connection does not satisfy the first operator selection policy, and the SGW determines that the service continuity of the PDN does not need to be continuous.
  • Step 203 The network device sends the service continuity information of the PDN connection to the MME.
  • the network device When the network device is a PCRF, and the protocol between the PGW and the S-GW is the GTP protocol, the network device sends the service continuity information of the PDN connection to the MME, specifically: the PCRF sends the PDN connection to the MME through the PGW and the S-GW.
  • the service continuity information that is, the PCRF first sends the service continuity information of the PDN connection to the PGW, and the PGW forwards the information to the SGW, and the PGW sends the information to the SGW.
  • the network device When the network device is a PCRF, and the protocol between the PGW and the SGW is the PMIPv6 protocol, the network device sends the service continuity information of the PDN connection to the MME, specifically: the PCRF sends the service continuity information of the PDN connection to the MME through the SGW, that is, The PCRF sends the service continuity information of the PDN connection directly to the SGW, and then sends the information to the MME by the SGW, without passing through the PGW.
  • the PCRF sends the service continuity information of the PDN connection to the MME through the SGW, that is, The PCRF sends the service continuity information of the PDN connection directly to the SGW, and then sends the information to the MME by the SGW, without passing through the PGW.
  • the network device When the network device is a PGW, the network device sends the service continuity information of the PDN connection to the MME, specifically: the PGW sends the service continuity information of the PDN connection to the MME through the SGW, that is, the PGW sends the service continuity information of the PDN connection to the SGW. , sent by the SGW to the MME.
  • a new message parameter may be defined to carry the service continuity information of the PDN connection, such as defining a PDN connection service type.
  • the network device can be surely configured to reduce the service continuity information of the PDN connection to the MME.
  • the service continuity information of the PDN connection is sent to the MME. If the UE initiates a new service, and the new service does not need to maintain service continuity, and all the services of the UE before the new service do not need to maintain service continuity, the service continuity of the PDN connection is still unnecessary. Keeping continuous, the service continuity information of the PDN connection does not change, and the network device does not need to repeatedly send messages that do not need to maintain business continuity.
  • the service continuity of the PDN connection does not need to be continuously changed to need to be continuous.
  • the service continuity information of the PDN connection changes, and the network device needs to send a message to maintain service continuity. In the above manner, only when the service continuity information of the PDN connection changes, the network device sends a service continuity message to the MME, thereby reducing resources occupied by the service continuity information.
  • the network device sends the service continuity information of the PDN connection to the MME after the preset time length, so as to prevent the UE from establishing different services in a short time when the PDN connection is just established.
  • the network device needs to send service continuity information of multiple PDN connections to the MME in a short period of time, resulting in waste of resources.
  • the MME obtains the service continuity information of each service carried on the PDN connection, and obtains the service continuity of the PDN connection according to the service continuity information of each service carried on the PDN connection, and connects the service of the PDN connection.
  • the continuity information is sent to the MME, so that the MME maintains the connection between the UE and the original PGW for the UE that needs to maintain the service continuity according to the service continuity information of the PDN connection of the UE, and selects a new PGW for the UE that does not need to maintain service continuity, which can ensure
  • the services of the UEs that need to maintain the continuity of the service are normal and continuous, and can select a more suitable PGW for the UEs that do not need to ensure the continuity of the service, without affecting the service continuity of the services in the PDN connection, so that the path of the UE is better. , saving routing resources.
  • a service continuity of a PDN connection is determined by a PCRF, and service continuity information of a PDN connection is sent to an MME.
  • the scenario for the example is that the S5/S8 interface between the PGW and the SGW adopts the GTP protocol.
  • the PCRF can connect the PDN-connected service.
  • the continuity feature information is passed directly to the PGW.
  • the method provided in this embodiment includes the following steps:
  • Step 301 The TDF detects the service flow characteristic information of the service on the PDN connection.
  • the TDF detects the start and end of the service carried on the PDN connection.
  • the TDF detects that a service is initiated or terminated on the PDN connection
  • the TDF detects the service flow, and the TDF can detect by using the DPI technology. Other methods are tested.
  • the service flow feature information of the service may be any information related to the service flow, such as the quintuple information of the service, and the application layer information carried in the service flow.
  • Step 302 The TDF sends the service flow characteristic information of the service to the PCRF.
  • Step 303 Determine service continuity of the service according to the service flow characteristic information of the service, and determine service continuity of the PDN according to service flow characteristic information of the service and service continuity information of other services connected to the PDN.
  • the business continuity information of the PDN connection or the service continuity information of each service carried on the PDN connection includes: (a) need to maintain business continuity (b) need not maintain business continuity (c) only need to maintain in the ECM-CONNECTED state Business continuity.
  • the principle that the PCRF judges the service continuity of the entire PDN connection by using the service continuity information of each service is: the PDN connection is not required only when the PDN connection carries all the services and does not need to maintain service continuity. Maintain business continuity; if there is a service on the PDN connection that needs to maintain business continuity, the PDN connection needs to maintain business continuity.
  • the PCRF determines that any one of the services carried on the PDN connection needs to be continuous, and further, the PCRF determines whether the PDN connection satisfies the first operator selection policy, and if the PDN connection satisfies the first operator selection policy, Then, the PCRF determines that the service continuity of the PDN connection needs to be continuous. If the PDN connection does not satisfy the first operator selection policy, the PCRF determines that the service continuity of the PDN connection does not need to be continuous.
  • Step 304 The PCRF sends a decision and charging rule message to the PGW, where the decision and charging rule message includes service continuity information of the PDN connection.
  • the PCRF carries the service continuity information of the PDN connection in the Policy and Charging Rules Provision (Policy and Charging Rules Provision), and the PGW integrates the policy and charging enforcement function (Policy and Charging Enforcement).
  • Policy and Charging Rules Provision Policy and Charging Rules Provision
  • Policy and Charging Rules Provision Policy and Charging Rules Provision
  • Policy and Charging Enforcement Policy and Charging Enforcement
  • Function, Referred to as PCEF Policy and Charging Enforcement
  • Step 305 The PGW sends a bearer update request to the SGW, where the bearer update request includes service continuity information of the PDN connection.
  • the PGW carries the service continuity information of the PDN connection on the bearer update request (Update
  • Step 306 The SGW sends a bearer update request to the MME, where the bearer update request includes service continuity information of the PDN connection.
  • the SGW carries the service continuity information of the PDN connection in the Update Bearer Request to the MME.
  • Step 307 The MME stores the service continuity information of the received PDN connection.
  • the MME After receiving the service continuity information of the PDN connection, the MME saves and maintains the information, so that when the trigger condition occurs, it is determined whether the PDN connection needs to be continuous according to the service continuity information of the PDN connection.
  • the MME After receiving the service continuity information of the PDN connection, the MME saves and maintains the information, so as to determine whether the PGW can be reselected as a decision condition.
  • the normal bearer update process is performed between the MME and the UE, and the bearer update process is the same as the prior art, and details are not described herein again.
  • the MME returns a bearer update response to the SGW, and the SGW returns a bearer update response to the PGW, and the PGW returns a decision and charging policy response to the PCRF.
  • the PCRF needs to send the service continuity information of the PDN connection to the SGW instead of the PGW.
  • Other steps are the same as in the third embodiment.
  • FIG. 5 is a signaling flowchart of Embodiment 4 of the method for processing service continuity according to the present invention.
  • the PCRF only judges the service continuity of a single service on the PDN connection.
  • the service continuity of the entire PDN connection is implemented by the PGW, and the scenario that is used in this embodiment is a scenario in which the S5/S8 interface between the PGW and the SGW adopts the GTP protocol.
  • the method provided in this embodiment includes the following steps:
  • Step 401 The TDF detects the service flow characteristic information of the service on the PDN connection.
  • Step 402 The TDF sends the service flow characteristic information of the service to the PCRF.
  • Step 403 The PCRF determines the service continuity of the service according to the service flow characteristic information of the service.
  • Step 404 The PCRF sends a decision and charging rule message to the PGW, where the decision and charging rule message includes service continuity information of the service.
  • the PCRF only judges the service continuity of a single service on the PDN connection, and then sends the service continuity information of the single service to the PGW, and the PCRF can carry the service continuity information of the service in the decision and calculation. Sent to the PGW in the Policy and Charging Rules Provision.
  • Step 405 The PGW determines the service continuity information according to all services on the PDN connection.
  • the PGW determines the service continuity of the PDN according to the service continuity information of the service and the service continuity information of the other services on the PDN connection. For the specific implementation, refer to the description in the third step 304, which is not described here. Only the executive body is different.
  • the PCEF is integrated on the PGW. Therefore, the PCRF can also be used to send the decision and charging rule message to the PCEF.
  • the PCEF continuously searches for the service flow characteristic information of the service and other services of the PDN. The sexual information determines the business continuity of the PDN.
  • Step 406 The PGW sends a bearer update request to the SGW, where the bearer update request includes service continuity information of the PDN connection.
  • Step 407 The SGW sends a bearer update request to the MME, where the bearer update request includes service continuity information of the PDN connection.
  • Step 408 The MME stores the service continuity information of the received PDN connection. After receiving the service continuity information of the PDN connection, the MME saves and maintains the information, so that when the trigger condition occurs, it is determined whether the PDN connection needs to be continuous according to the service continuity information of the PDN connection.
  • the MME After receiving the service continuity information of the PDN connection, the MME saves and maintains the information, so as to determine whether the PGW can be reselected as a decision condition.
  • the normal bearer update process is performed between the MME and the UE, and the bearer update process is the same as the prior art, and details are not described herein again.
  • the MME sends the SGW to the SGW.
  • the SGW returns a bearer update response to the PGW, and the PGW returns a decision and charging policy response to the PCRF.
  • FIG. 6 is a signaling flowchart of Embodiment 5 of the method for processing service continuity according to the present invention.
  • the difference between this embodiment and Embodiment 4 is that, in this embodiment, after the PCRF determines the service continuity of a single service on the PDN connection, The service continuity information of the single service is sent to the SGW, and the SGW determines the service continuity of the entire PDN connection.
  • the scenario in this embodiment is a scenario in which the S5/S8 interface between the PGW and the SGW adopts the PMIPv6 protocol.
  • the method provided in this embodiment includes the following steps:
  • Step 501 The TDF detects the service flow characteristic information of the service on the PDN connection.
  • Step 502 The TDF sends the service flow characteristic information of the service to the PCRF.
  • Step 503 The PCRF determines the service continuity of the service according to the service flow characteristic information of the service.
  • Step 504 The PCRF sends the service continuity information of the service to the SGW.
  • the PCRF only judges the service continuity of the single service on the PDN connection, and then sends the service continuity information of the single service to the SGW, and the PCRF can carry the service continuity information of the service in the gateway control and The QoS policy (Gateway control and QoS Rules Provision) message is sent to the SGW.
  • the QoS policy Gateway control and QoS Rules Provision
  • Step 505 The SGW determines service continuity of the PDN according to service continuity information of all services on the PDN connection.
  • the service continuity of the PDN may be determined by the service continuity information of all services on the PDN connection of the Bearing Binding and Event Report Function (BBERF) on the SGW.
  • BBERF Bearing Binding and Event Report Function
  • Step 506 The SGW sends a bearer update request to the MME, where the bearer update request includes service continuity information of the PDN connection.
  • Step 507 The MME stores the service continuity information of the received PDN connection. After receiving the service continuity information of the PDN connection, the MME saves and maintains the information, so that when the trigger condition occurs, the PDN connection is determined according to the service continuity information of the PDN connection. No need to keep continuous.
  • the normal bearer update process is performed between the MME and the UE, and the bearer update process is the same as the prior art, and details are not described herein again.
  • the MME returns a bearer update response to the SGW, and the SGW returns a gateway control and a QoS policy response to the PCRF.
  • FIG. 7 is a signaling flowchart of Embodiment 6 of the method for processing service continuity according to the present invention.
  • the PCRF sends service continuity information of a single service to the PGW, and the PGW. Determining the service continuity characteristic of the bearer carrying the service according to the service continuity information of the single service, and then transmitting the service continuity characteristic of the bearer to the MME through the SGW, and finally, the MME is configured according to each bearer in the PDN connection.
  • the service continuity feature determines the service continuity of the PDN connection.
  • the embodiment is directed to the scenario where the S5/S8 interface between the PGW and the SGW is the GTP protocol.
  • the method provided in this embodiment includes the following steps: Step 601: The TDF detects information about service flow characteristics of a service on a PDN connection.
  • Step 602 The TDF sends the service flow characteristic information of the service to the PCRF.
  • Step 603 The PCRF determines the service continuity of the service according to the service flow characteristic information of the service.
  • Step 604 The PCRF sends a decision and charging rule message to the PGW, where the decision and charging rule message includes service continuity information of the service.
  • the PCRF only judges the service continuity of a single service on the PDN connection, and then sends the service continuity information of the single service to the PGW, and the PCRF can carry the service continuity information of the service in the decision and calculation. Sent to the PGW in the Policy and Charging Rules Provision.
  • Step 605 The PGW determines, according to the service continuity information of each service on the bearer corresponding to the service, the service continuity of the bearer corresponding to the service.
  • each bearer can carry multiple services.
  • each bearer can carry multiple services.
  • the SGW determines the service continuity of the bearer corresponding to the service according to the service continuity information of each service on the bearer corresponding to the service.
  • the principle that the SGW determines the service continuity of the entire bearer according to the service continuity information of each service is: If all the services in the bearer do not need to maintain service continuity, the bearer does not need to maintain service continuity. If one of the bearers needs to maintain service continuity, the bearer needs to maintain service continuity.
  • the service continuity information of the PDN connection or the service continuity information of each service carried on the PDN connection or the service continuity information of the bearer may include (a) need to maintain service continuity; (b) only in the ECM- The CONNECTED state needs to maintain business continuity; (c) There is no need to maintain business continuity.
  • the continuity information of the service may include other information.
  • the service continuity in the 3 has priority
  • the priority of the service continuity is (a:), (b), (c)
  • the service continuity of the PDN connection is always
  • the service continuity of the highest priority bearer in the PDN connection is consistent.
  • the MME may carry the service continuity information of the bearer in the context of each bearer, so as to determine the service continuity characteristic of the PDN connection when the traffic flow starts or ends.
  • Step 606 The PGW sends a bearer update request to the SGW, where the bearer update request includes service continuity information of the bearer corresponding to the service.
  • Step 607 The SGW sends a bearer update request to the MME, where the bearer update request includes service continuity information of the bearer corresponding to the service.
  • Step 608 The MME determines, according to the service continuity information of each bearer on the PDN connection, the service continuity of the PDN connection.
  • the MME After receiving the service continuity information of the bearer corresponding to the service, the MME obtains the service continuity of the PDN connection according to the continuity information of the bearers on the PDN connection, and specifically: the MME determines the PDN according to the continuity information of each bearer on the PDN connection. Whether the bearers on the connection need to be kept continuous; if any one of the bearers on the PDN connection needs to be continuous, the MME determines that the service continuity of the PDN needs to be continuous; if all the bearers on the PDN connection do not need to be continuous, the MME determines The business continuity of the PDN does not need to be continuous.
  • the MME determines whether the PDN connection satisfies the first operator selection policy, and if the PDN connection meets the first carrier selection policy, The MME determines that the service continuity of the PDN needs to be continuous; if the PDN connection does not satisfy the first operator selection policy, the MME determines that the service continuity of the PDN does not need to be continuous.
  • Step 609 The MME stores the service continuity information of the PDN connection.
  • the MME saves and maintains the service continuity information of the PDN connection, so as to determine whether the PDN connection needs to be continuous according to the service continuity information of the PDN connection when the trigger condition occurs.
  • the normal bearer update process is performed between the MME and the UE, and the bearer update process is the same as the prior art, and details are not described herein again.
  • the MME returns a bearer update response to the SGW, and the SGW returns a bearer update response to the PGW, and the PGW returns a decision and charging rule response to the PCRF.
  • FIG. 8 is a signaling flowchart of Embodiment 7 of the method for processing service continuity according to the present invention.
  • the PCRF sends the service continuity information of a single service to the SGW.
  • the PGW is not the PGW.
  • the SGW determines the service continuity characteristics of the bearer carrying the service according to the service continuity information of the single service, and then sends the bearer service continuity characteristic to the MME.
  • the MME uses each of the PDN connections.
  • the service continuity characteristic of the bearer determines the service continuity of the PDN connection.
  • the embodiment is directed to the scenario where the S5/S8 interface between the PGW and the SGW is the PMIPv6 protocol.
  • the method provided in this embodiment includes the following steps:
  • Step 701 The TDF detects the service flow characteristic information of the service on the PDN connection.
  • Step 702 The TDF sends the service flow characteristic information of the service to the PCRF.
  • Step 703 The PCRF determines the service continuity of the service according to the service flow characteristic information of the service.
  • Step 704 The PCRF sends a gateway control and a QoS policy message to the SGW, where the gateway control and the QoS policy message include service continuity information of the service.
  • the PCRF only judges the service continuity of the single service on the PDN connection, and then sends the service continuity information of the single service to the SGW, and the PCRF can carry the service continuity information of the service in the gateway control and A QoS Policy (Gateway Control and QoS Rules Provision) message is sent to the SGW.
  • QoS Policy Gateway Control and QoS Rules Provision
  • Step 705 The SGW determines, according to the service continuity information of each service on the bearer corresponding to the service, the service continuity of the bearer corresponding to the service.
  • the BBERF is integrated on the SGW, and the BBRF on the SGW determines the service continuity of the PDN according to the service continuity information of all services on the PDN connection.
  • Step 706 The SGW sends a bearer update request to the MME, where the bearer update request includes the Business continuity of the bearer corresponding to the service.
  • Step 707 The MME determines service continuity of the PDN connection according to the service continuity information of each bearer on the PDN connection.
  • Step 708 The MME stores the service continuity information of the PDN connection.
  • the MME saves and maintains the service continuity information of the PDN connection, so that when the trigger condition occurs, it is determined whether the PDN connection needs to be kept continuous according to the service continuity information of the PDN connection.
  • the normal bearer update process is performed between the MME and the UE, and the bearer update process is the same as that in the prior art, and details are not described herein again.
  • the MME returns a bearer update response to the SGW, and the SGW returns a gateway control and a QoS policy response to the PCRF.
  • FIG. 9 is a signaling flowchart of Embodiment 8 of a method for processing service continuity according to the present invention.
  • the TDF is used to directly determine the continuity of the service, and the method provided in this embodiment includes The following steps:
  • Step 801 The TDF detects information about the service flow of the service on the PDN connection.
  • Step 802 The TDF determines service continuity of the service according to the service flow characteristic information of the service.
  • Step 803 The TDF sends the service continuity information of the service to the PCRF.
  • Step 804 The PCRF determines service continuity of the PDN connection according to service continuity information of all services on the PDN connection.
  • Step 805 The PCRF sends the service continuity information of the PDN connection to the MME.
  • Step 806 The MME stores the service continuity information of the received PDN connection.
  • the MME After receiving the service continuity information of the PDN connection, the MME saves and maintains the information, so that when the trigger condition occurs, it is determined whether the PDN connection needs to be continuous according to the service continuity information of the PDN connection.
  • the normal bearer update process is performed between the MME and the UE, and the bearer update process is the same as that in the prior art, and details are not described herein again. And after the bearer update is over, MME A response is returned to the PCRF.
  • Embodiment 10 is a signaling flowchart of Embodiment 9 of a method for processing a service continuity according to the present invention.
  • the embodiment is directed to a PCEF integrated with a PGW, and the PCEF is integrated with an Application Detection Control (ADC) entity.
  • ADC Application Detection Control
  • the ADC entity can perform the functions performed by the TDF entity in the eighth embodiment, and can complete the detection of the service flow characteristics.
  • the method provided in this embodiment includes the following steps:
  • Step 901 The PGW obtains service continuity information of each service carried on the PDN connection.
  • the ADC entity of the PCEF detects the service continuity of the service.
  • the information in the data packet can be directly used by the ADC. Extracting to obtain, or the ADC can be obtained by analyzing the traffic behavior passing through a period of time, for example, when the ADC cannot extract valid traffic flow characteristic information from a single data packet of the service flow, to judge the service flow.
  • the ADC can detect the service flow for a period of time, and infer the business continuity characteristics of the service flow by analyzing the behavior of the service flow packet.
  • Step 902 The PGW determines service continuity of the PDN connection according to service continuity information of each service on the PDN connection.
  • step 303 in the third embodiment refers to the description of step 303 in the third embodiment, but only the execution subject is different from the third embodiment, and therefore no further details are provided herein.
  • Step 903 The PGW sends the service continuity information of the PDN connection to the MME.
  • Step 904 The MME stores the service continuity information of the received PDN connection.
  • the MME After receiving the service continuity information of the PDN connection, the MME saves and maintains the information, so that when the trigger condition occurs, it is determined whether the PDN connection needs to be continuous according to the service continuity information of the PDN connection.
  • step 904 a normal bearer update procedure is performed between the MME and the UE.
  • the bearer update process is the same as the prior art and will not be described here.
  • Step 906 The MME returns a response message to the PGW.
  • FIG. 11 is a schematic structural diagram of Embodiment 1 of a mobility management entity according to the present invention.
  • the MME provided in this embodiment includes: an obtaining module 11, a determining module 12, a gateway selecting module 13, and a connection holding module 14.
  • the obtaining module 11 is configured to acquire service continuity information of a PDN connection of the packet data network of the user equipment UE.
  • the determining module 12 is configured to determine, according to the service continuity information of the PDN connection, whether the PDN connection needs to maintain the service continuity according to the service continuity information of the PDN connection; the trigger condition is any one of the following conditions: a mobility management event occurs, The new service is initiated, the original service is terminated, the evolved packet system EPS bearer is created, the EPS bearer is modified, and the EPS bearer is deleted.
  • the gateway selection module 13 is configured to: when the determination result of the determining module 12 is yes, select a new packet data gateway PGW for the UE, and instruct the UE to disconnect from the original PGW serving the UE, And indicating that the UE establishes a new PDN connection with the new PGW; and the connection maintaining module 14 is configured to maintain the connection between the UE and the original PGW when the determining result of the determining module 12 is NO.
  • the obtaining module 11 is specifically configured to: receive service continuity information of the PDN connection sent by the network device, where the service continuity information of the PDN connection is used by the network device according to each service carried on the PDN connection The continuity information is determined.
  • the network device is any one of a policy control rule formulating entity PCRF, the original PGW, and a serving gateway S-GW serving the UE.
  • the acquiring module 11 is specifically configured to: receive the The business continuity information of the PDN connection sent by the PCRF through the original PGW and the S-GW. That is, the service continuity information of the PDN connection is determined by the PCRF, and the PCRF sends the service continuity information of the PDN connection to the PGW, and then the PGW forwards the service continuity information of the PDN connection to the SGW.
  • the SGW sends to the MME.
  • the obtaining module 11 is specifically configured to: receive the The business continuity information of the PDN connection sent by the PCRF through the S-GW. That is, the service continuity information of the PDN connection is determined by the PCRF, and the PCRF sends the service continuity information of the PDN connection to the SGW, and is sent by the SGW to the MME.
  • the acquiring module 11 is specifically configured to: receive The service continuity information of the PDN connection sent by the original PGW through the SGW. That is, the service continuity information of the PDN connection is determined by the PGW, and then the PGW sends the service continuity information of the PDN connection to the SGW, and is sent by the SGW to the MME.
  • the acquiring module 11 is configured to: receive service continuity information of the PDN connection sent by the S-GW. That is to say, the service continuity information of the PDN connection is determined by the SGW, and then the SGW sends the service continuity information of the PDN connection to the MME.
  • the gateway selection module 13 includes: an obtaining unit and a determining unit.
  • An acquiring unit configured to acquire information about each PGW corresponding to the access point APN to which the original PDN connection belongs, where the related information of each PGW corresponding to the APN includes: the PGW and the UE a distance information, a delay information of each of the PGWs and the UE, and load information of each of the PGWs; a determining unit, configured to use, according to information about each PGW corresponding to the APN, and actual requirements of the UE from the A new PGW is selected for the UE in each PGW.
  • the acquiring unit is configured to: obtain information about each PGW corresponding to the access point APN to which the original PDN connection belongs: the obtaining unit queries the pre-configured database to belong to the original PDN connection. Access information related to each PGW corresponding to the access point APN.
  • the acquiring unit is specifically configured to: first, send a DNS query request to the domain name system server DNS, for querying each PGW information corresponding to the APN; The Internet Protocol IP address of each PGW sent by the DNS determines the distance between each PGW and the UE according to the IP address of each PGW.
  • the gateway selection module 13 is specifically configured to: determine, according to the second operator selection policy, whether a new PGW needs to be selected for the UE.
  • the second operator selection policy is: when the PDN connection of the UE is in an EPS connection management idle state ECM-IDLE state, selecting a new PGW for the UE, or when the PDN connection of the UE is in any state Neither need to select a new PGW for the UE, or select a new PGW for the UE when the PDN connection of the UE does not need to maintain service continuity.
  • the MME provided in this embodiment may be used to implement the technical solution provided in Embodiment 1 of the method.
  • the specific implementation and technical effects are similar, and are not described here.
  • FIG. 12 is a schematic structural diagram of Embodiment 2 of a mobility management entity according to the present invention. Compared with the MME shown in FIG. 11, in this embodiment, the MME determines whether the PDN connection needs to maintain service continuity, and other implementation manners. The device shown in Figure 11 is similar and will not be described again. As shown in FIG. 12, the MME provided in this embodiment includes: an obtaining module 21, a determining module 22, a gateway selecting module 23, and a connection holding module 24.
  • the obtaining module 21 is configured to acquire service continuity information of the packet data network PDN connection of the user equipment UE.
  • the determining module 22 is configured to determine, according to the service continuity information of the PDN connection, whether the PDN connection needs to maintain the service continuity according to the service continuity information of the PDN connection; the trigger condition is any one of the following conditions: a mobility management event occurs, The new service is initiated, the original service is terminated, the evolved packet system EPS bearer is created, the EPS bearer is modified, and the EPS bearer is deleted.
  • the gateway selection module 23 is configured to: when the determination result of the determining module 22 is YES, select a new packet data gateway PGW for the UE, and instruct the UE to disconnect from the original PGW serving the UE, And indicating that the UE establishes a new PDN connection with the new PGW; and the connection maintaining module 24 is configured to maintain the connection between the UE and the original PGW when the determining result of the determining module 22 is NO.
  • the determining module 22 is specifically configured to: obtain continuity information of each bearer on the PDN connection, and obtain service continuity information of the PDN connection according to continuity information of each bearer on the PDN connection.
  • the determining module 22 obtains the service continuity information of the PDN connection by using the following manner: the determining module 22 acquires the continuity information of each bearer on the PDN connection, according to the PDN connection.
  • the continuity information of the bearer determines whether the bearers on the PDN connection need to be continuous; if any one of the PDN connections needs to be continuous, the determining module 22 determines that the service continuity of the PDN needs to be continuous. If all the bearers on the PDN connection do not need to remain contiguous, the determining module 22 determines that the service continuity of the PDN does not need to be continuous.
  • the determining module 22 obtains the service continuity information of the PDN connection by using the following manner: the determining module 22 acquires continuity information of each bearer on the PDN connection, according to each bearer on the PDN connection. Continuity information, determining the PDN connection Whether each bearer needs to be continuous; if any one of the PDN connections needs to remain continuous, the determining module 22 determines whether the PDN connection satisfies the first operator selection policy; if the PDN connection satisfies the first operation The MME selects the policy, and the determining module 22 determines that the service continuity of the PDN needs to be continuous; if all the bearers on the PDN connection do not need to be continuous, or any one of the PDN connections needs to remain continuous, but The PDN connection does not satisfy the first operator selection policy, and the determining module 22 determines that the service continuity of the PDN does not need to be continuous.
  • the obtaining, by the determining module 22, the continuity information of each bearer on the PDN connection is: receiving continuity information of each bearer on the PDN connection sent by the SGW or the PGW served by the UE.
  • FIG. 13 is a schematic structural diagram of Embodiment 1 of a network device according to the present invention.
  • the network device provided by this embodiment includes: a first obtaining module 31, a second obtaining module 32, and a sending module 33.
  • the first obtaining module 31 is configured to obtain service continuity information of each service carried on the PDN connection.
  • the second obtaining module 32 is configured to obtain service continuity information of the PDN connection according to service continuity information of each service carried on the PDN connection;
  • the sending module 33 is configured to send the service continuity information of the PDN connection to the mobility management entity MME.
  • the second obtaining module 32 is specifically configured to: determine, according to service continuity information of each service carried on the PDN connection, whether the services need to maintain a connection; if the PDN is connected Determining that the service continuity of the PDN connection needs to be continuous; if all the services carried on the PDN connection do not need to be continuous, the PDN connection is determined. Business continuity does not need to be continuous.
  • the second obtaining module 32 is specifically configured to: determine, according to service continuity information of each service carried on the PDN connection, whether the services need to be continuous; if the PDN connection Any one of the services carried on the business needs to remain connected Continuing, determining whether the PDN connection meets a first operator selection policy; if the PDN connection satisfies the first operator selection policy, determining that the service continuity of the PDN needs to be continuous; if the PDN connection All of the bearers need not be contiguous, or any one of the PDN connections needs to be kept continuous. However, if the PDN connection does not satisfy the first carrier selection policy, the service continuity of the PDN is determined to be Need to stay continuous.
  • the first acquiring module 31 includes: a receiving unit and a determining unit, where the receiving unit is configured to receive service flow feature information of each service sent by the packet detecting entity TDF; The service continuity of each service is determined according to the service flow characteristic information of each service, and the service continuity information of each service is obtained.
  • the service flow characteristic information of each service includes: quintuple information of the service or application layer information of the service.
  • the determining unit is specifically configured to: determine service continuity of the services according to service flow feature information of each service, and service continuity characteristic information of various service types stored in advance or obtained from an external database.
  • the network device may be a policy control rule formulating entity PCRF, SGW,
  • the first acquiring module 31 is specifically configured to: receive service continuity information of each service sent by the packet detection entity TDF, where the service continuity information of each service is The TDF is determined according to the service flow characteristic information of each service.
  • the sending module is specifically configured to: The PGW and the S-GW send the service continuity information of the PDN connection to the MME.
  • the network device is a policy control rule formulation entity PCRF, and the protocol between the PGW serving the UE and the S-GW is the Proxy Mobile Internet Protocol version 6 PMIPv6 protocol; the sending module 33 is specifically used to Transmitting, by the S-GW, the service continuity information of the PDN connection to the MME.
  • the second obtaining module 32 is specifically configured to: receive service continuity information of each service carried on the PDN connection sent by the PCRF, where the PDN connection The service continuity of each service carried by the PCRF is determined by the PCRF according to the service flow characteristic information of each service; the sending module 33 is specifically configured to: The SGW serving the UE sends the service continuity of the PDN connection to the MME
  • the first acquiring module 31 is specifically configured to: when a new service is initiated or terminated on the PDN connection, obtain service flow characteristic information of each service. And determining, according to the service flow characteristic information of each service, service continuity of each service, and obtaining service continuity information of each service.
  • the first acquiring module 31 is specifically configured to: receive service continuity information of each service carried on the PDN connection sent by the PCRF, where the PDN connection The service continuity of each service carried on is determined by the PCRF according to the service flow characteristic information of each service.
  • the first acquiring module 31 is specifically configured to: receive service continuity information of each service carried by the PDN connection sent by the PCRF, where the PDN connection is carried The service continuity of each service is determined by the PCRF according to the service flow characteristic information of each service; the second acquisition module 32 includes: a bearer continuity determining unit, a determining unit, and a continuity determining unit of the PDN connection.
  • the bearer continuity determining unit is configured to determine continuity of each bearer on the PDN connection according to the service continuity information of each service carried on the PDN connection; the determining unit is configured to connect each bearer according to the PDN
  • the continuity information determines whether the bearers on the PDN connection need to be continuous; the continuity determining unit of the PDN connection is configured to determine, according to the judgment result of the determining unit, whether the PDN connection needs to be kept continuous;
  • the continuity determining unit of the PDN connection determines that the service continuity of the PDN connection needs to be continuous; if all the bearers on the PDN connection do not need to be continuous, then The continuity determining unit of the PDN connection determines that the service continuity of the PDN connection does not need to be continuous.
  • the determining unit is configured to determine, when the bearer continuity determining unit determines that any one of the PDN connections needs to remain continuous, determine whether the PDN connection meets the first operator selection policy; a continuity determining unit of the PDN connection, configured to determine, according to a determination result of the determining unit, whether the PDN connection needs to be kept continuous; if the PDN connection satisfies the first operator selection policy, the PDN connection is continuous.
  • the determining unit determines that the service continuity of the PDN is required to remain continuous; if the PDN is connected All the bearers need not be kept continuous, or any one of the PDN connections needs to be kept continuous, but the PDN connection does not satisfy the first operator selection policy, and the continuity determining unit of the PDN connection determines The business continuity of the PDN does not need to be continuous.
  • the sending module is specifically configured to: when determining that the service continuity of the PDN connection changes, send the service continuity information of the PDN connection to the MME. Or, after the PDN connection is established, the sending module sends the service continuity information of the PDN connection to the MME after the preset duration. Thereby, the transmission of the business continuity information of the PDN connection is reduced.
  • FIG. 14 is a schematic structural diagram of Embodiment 3 of a mobility management entity according to the present invention.
  • the MME 400 provided in this embodiment includes: a processor 41 and a receiver 43.
  • the receiver 43 is connected to the processor 41 via a bus.
  • the MME provided in this embodiment may further include: a memory 42, wherein the memory 42 stores execution instructions, when the MME 400 is running, the processor 41 communicates with the memory 42, and the processor 41 executes execution instructions to cause the MME 400 to perform the service provided by the present invention. Continuity judgment method.
  • the receiver 43 is configured to obtain service continuity information of the PDN connection of the packet data network of the user equipment UE.
  • the processor 41 is configured to determine, according to the service continuity information of the PDN connection, whether the PDN connection needs to keep the service continuous according to the service continuity information of the PDN connection;
  • the trigger condition is any one of the following conditions: a mobility management event occurs, New service initiation, original service termination, evolution of the EPS system bearer of the packet system, modification of the EPS bearer, and deletion of the EPS bearer.
  • the processor 41 selects a new packet data gateway PGW for the UE, and instructs the UE to disconnect from the original PGW serving the UE, and instructs the UE to establish with the new PGW.
  • New PDN connection
  • the processor 41 maintains the connection of the UE to the original PGW.
  • the receiver 43 is specifically configured to: receive service continuity information of the PDN connection sent by the network device, where the service continuity information of the PDN connection is used by the network device according to each service carried on the PDN connection The continuity information is determined.
  • the network device is a policy Slightly control any one of the rule making entity PCRF, the original PGW, and the serving gateway S-GW serving the UE.
  • the receiver 43 is specifically configured to: receive the The business continuity information of the PDN connection sent by the PCRF through the original PGW and the S-GW.
  • the receiver 43 is specifically configured to: receive the The business continuity information of the PDN connection sent by the PCRF through the S-GW.
  • the receiver 43 is specifically configured to: receive service continuity information of the PDN connection sent by the original PGW through the SGW.
  • the receiver 43 is specifically configured to: receive service continuity information of the PDN connection sent by the S-GW.
  • the MME is configured to receive the service continuity information of the PDN connection sent by the other network device.
  • the MME may also determine the service continuity information of the PDN connection by itself, and the MME determines the PDN connection by itself.
  • the receiver 43 is specifically configured to: receive continuity information of each bearer on the PDN connection sent by the SGW or the PGW served by the UE. Then, the receiver 43 acquires the service continuity information of the PDN connection according to the continuity information of each bearer on the PDN connection.
  • the receiver 43 obtains the service continuity information of the PDN connection according to the continuity information of the bearers on the PDN connection.
  • the receiver 43 determines the PDN connection according to the continuity information of each bearer on the PDN connection. Whether each bearer needs to be continuous; if any one of the PDN connections needs to be continuous, it is determined that the service continuity of the PDN needs to be continuous; if all the bearers on the PDN connection do not need to be continuous, Then, it is determined that the business continuity of the PDN does not need to be continuous.
  • the receiver 43 determines, according to the continuity information of the bearers on the PDN connection, whether each bearer on the PDN connection needs to be kept continuous; if any one of the PDN connections needs to be kept continuous, further Determining whether the PDN connection satisfies a first operator selection policy; if the PDN connection satisfies the first operator selection policy, the MME determines that the service continuity of the PDN needs to remain continuous; PDN All the bearers on the connection do not need to be contiguous, or any one of the PDN connections needs to be kept continuous, but the PDN connection does not satisfy the first operator selection policy, and the MME determines the service of the PDN. Continuity does not need to be continuous.
  • the processor 41 is specifically configured to determine, by using the following manner, whether a new PGW needs to be selected for the UE: the processor 41 acquires information about each PGW corresponding to the access point APN to which the original PDN connection belongs, where the APN is Corresponding information of each PGW includes: distance information of each PGW and the UE, delay information of each PGW and the UE, and load information of each PGW; and each PGW corresponding to the APN The relevant information and the actual requirements of the UE select a new PGW for the UE from the respective PGWs.
  • the MME provided in this embodiment may further include a transmitter 44, where the transmitter 44 is configured to send a DNS query request to the domain name system server DNS for querying each PGW information corresponding to the APN; the receiver 43 And the method is further configured to: receive the Internet Protocol IP address of each of the PGWs sent by the DNS; and correspondingly, the processor 41 is specifically configured to: determine, according to the IP addresses of the PGWs received by the receiver, the The distance of the PGW from the UE. In this manner, the MME obtains the PGW information from the DNS.
  • the processor 41 may also query, from the pre-configured database, the correlation of each PGW corresponding to the access point APN to which the original PDN connection belongs. information.
  • the processor 41 may also consider an operator selection policy. Specifically, the processor 41 determines, according to the second operator selection policy, whether a new PGW needs to be selected for the UE.
  • the second operator selection policy is: when the PDN connection of the UE is in the EPS connection management idle state ECM-IDLE, selecting a new PGW for the UE, or when the PDN connection of the UE is in any state There is no need to select a new PGW for the UE, or to select a new PGW for the UE when the PDN connection of the UE does not need to maintain traffic continuity.
  • the MME provided in this embodiment may be used to implement the technical solution in the first embodiment of the method, and the specific implementation manners and technical effects are similar, and details are not described herein again.
  • FIG. 15 is a schematic structural diagram of Embodiment 2 of a network device according to the present invention.
  • the network device 500 provided in this embodiment includes: a processor 51, a receiver 53, and a transmitter 54. Among them, the receiver 53 and the transmitter 54 are connected to the processor 51 via a bus.
  • the network device 500 provided in this embodiment may further include: a memory 52, where the memory 52 stores execution instructions, when the network device When the 500 is running, the processor 51 communicates with the memory 52, and the processor 51 executes the execution instruction so that the network device 500 executes the business continuity determination method provided by the present invention.
  • the receiver 53 is configured to acquire service continuity information of each service carried on the PDN connection
  • the processor 51 is configured to obtain, according to the service continuity information of each service carried on the PDN connection acquired by the receiver, Business continuity information for PDN connections;
  • the transmitter 54 is configured to send the service continuity information of the PDN connection to the mobility management entity MME.
  • the processor 51 may obtain the service continuity information of the PDN connection in the following two manners.
  • the processor 51 is specifically configured to: according to the services carried on the PDN connection.
  • the service continuity information is used to determine whether each of the services needs to be connected; if any one of the services carried on the PDN connection needs to be continuous, it is determined that the service continuity of the PDN connection needs to be continuous; If all the services carried on the PDN connection do not need to be contiguous, it is determined that the service continuity of the PDN connection does not need to be continuous.
  • the processor 51 is specifically configured to: determine, according to service continuity information of each service carried on the PDN connection, whether the services need to be continuous; if the services are carried in the PDN connection Any one of the services needs to be continuous, determining whether the PDN connection meets the first operator selection policy; if the PDN connection meets the first operator selection policy, determining that the service continuity of the PDN needs to be continuous Determining the PDN if all the bearers on the PDN connection do not need to be contiguous, or any one of the PDN connections needs to remain contiguous, but the PDN connection does not satisfy the first operator selection policy. Business continuity does not need to be continuous.
  • the network device may be a PCRF, a PGW, and an SGW.
  • the receiver 53 receives the service flow feature information of each service sent by the packet detection entity TDF; determines the service continuity of the services according to the service flow feature information of each service, and obtains the Business continuity information for each business.
  • the service flow characteristic information of each service includes: quintuple information of the service or application layer information of the service.
  • the receiver determines service continuity of the services according to service flow characteristic information of each service and service continuity characteristic information of various service types stored in advance or obtained from an external database.
  • the PCRF is based on the service flow characteristic of each service. The information itself determines the service continuity information of each service.
  • the packet inspection entity TDF determines the service continuity information of each service, and then sends the information to the PCRF.
  • the receiver 53 of the PCRF receives the packet sent by the packet detection entity TDF.
  • the service continuity information of each service where the service continuity information of each service is determined by the TDF according to the service flow characteristic information of each service.
  • the transmitter 54 is specifically configured to: pass the PGW And transmitting, by the S-GW, the service continuity information of the PDN connection to the MME.
  • the network device is a policy control rule formulation entity PCRF, and the protocol between the PGW serving the UE and the S-GW is the Proxy Mobile Internet Protocol version 6 PMIPv6 protocol; the transmitter 54 is specifically used to Transmitting, by the S-GW, the service continuity information of the PDN connection to the MME.
  • the receiver 53 is specifically configured to: receive service continuity information of each service carried on the PDN connection sent by the PCRF, where the PDN connection is carried The service continuity of each service is determined by the PCRF according to the service flow characteristic information of each service; the transmitter is specifically configured to: send the PDN-connected service to the MME by using an SGW serving the UE Continuity information. Or the receiver 53 is specifically configured to: when a new service is initiated or terminated on the PDN connection, the PGW acquires service flow feature information of each service; and determines, according to the service flow feature information of each service The business continuity of each service is obtained, and the business continuity information of each service is obtained.
  • the receiver 53 is specifically configured to: receive service continuity information of each service carried on the PDN connection sent by the PCRF, where the PDN connection is carried The service continuity of each service is determined by the PCRF according to the service flow characteristic information of each service. Or, the receiver 53 receives the service continuity information of each service carried on the PDN connection sent by the PCRF, where the service continuity of each service carried on the PDN connection is determined by the PCRF according to the service of each service.
  • the processor 51 is configured to: determine, according to the service continuity information of each service carried on the PDN connection, continuity of each bearer on the PDN connection; according to the PDN connection
  • the continuity information of each bearer determines whether each bearer on the PDN connection needs to be kept continuous; if any one of the PDN connections needs to be kept continuous, then it is determined
  • the service continuity of the PDN connection needs to be continuous; if all the bearers on the PDN connection do not need to be continuous, it is determined that the service continuity of the PDN connection does not need to be continuous.
  • the processor 51 determines whether the PDN connection satisfies the first operator selection policy; if the PDN connection satisfies the first operation
  • the QoS selection policy determines that the service continuity of the PDN needs to be continuous; if all the bearers on the PDN connection do not need to be continuous, or any one of the PDN connections needs to remain continuous, but the PDN If the connection does not satisfy the first operator selection policy, it is determined that the service continuity of the PDN does not need to be continuous.
  • the transmitter 54 determines that the service continuity of the PDN connection changes, and sends the PDN connection to the MME. Business continuity information. Alternatively, when the PDN connection is just established, the transmitter 54 sends the service continuity information of the PDN connection to the MME after a preset duration.
  • the network device provided in this embodiment can be used to implement the technical solution in the second embodiment of the method.
  • the specific implementation and technical effects are similar, and details are not described herein again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Selon un mode de réalisation, la présente invention concerne un procédé et un dispositif de traitement de continuité de service; une MME, par le biais d'une acquisition des informations de continuité de service d'une connexion de réseau PDN d'un UE, et sur la base desdites informations de continuité de service de la connexion de réseau PDN, détermine si la connexion de réseau PDN nécessite un maintien de continuité de service; si la connexion de réseau PDN ne nécessite pas de maintien de continuité de service, la MME sélectionne une nouvelle passerelle de données par paquets (PGW) pour l'UE, et si la connexion de réseau PDN nécessite un maintien de continuité de service, la MME maintient alors la connexion de PGW d'origine. La présente invention permet de garantir la connexion de service normale d'un UE qui nécessite le maintien d'une continuité de service, et en partant du principe de l'absence d'influence sur la connectivité de service du service d'une connexion de réseau PDN, permet de sélectionner une PGW plus appropriée pour un UE qui ne nécessite pas de maintien de continuité de service, ce qui optimise le chemin de l'UE et préserve des ressources de routage.
PCT/CN2013/090954 2013-12-30 2013-12-30 Procédé et dispositif d'évaluation de continuité de service WO2015100553A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201910413200.2A CN110430607B (zh) 2013-12-30 2013-12-30 业务连续性的处理方法和设备
CN201380034764.6A CN105009673B (zh) 2013-12-30 2013-12-30 业务连续性判断方法和设备
PCT/CN2013/090954 WO2015100553A1 (fr) 2013-12-30 2013-12-30 Procédé et dispositif d'évaluation de continuité de service

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/090954 WO2015100553A1 (fr) 2013-12-30 2013-12-30 Procédé et dispositif d'évaluation de continuité de service

Publications (1)

Publication Number Publication Date
WO2015100553A1 true WO2015100553A1 (fr) 2015-07-09

Family

ID=53492912

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/090954 WO2015100553A1 (fr) 2013-12-30 2013-12-30 Procédé et dispositif d'évaluation de continuité de service

Country Status (2)

Country Link
CN (2) CN110430607B (fr)
WO (1) WO2015100553A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108476438A (zh) * 2015-12-28 2018-08-31 华为技术有限公司 一种路径处理方法、装置及终端
CN109076625A (zh) * 2016-05-12 2018-12-21 华为技术有限公司 访问资源的方法、装置和系统
CN109156045A (zh) * 2016-05-12 2019-01-04 华为技术有限公司 访问资源的方法、装置和系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106255161B (zh) * 2016-08-09 2019-10-25 上海华为技术有限公司 分组数据网pdn连接建立的方法、控制面cp及用户设备ue
EP3873039B1 (fr) * 2017-02-07 2023-09-06 Motorola Mobility LLC Routage de paquets de données dans une unité distante

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102448188A (zh) * 2011-12-05 2012-05-09 新邮通信设备有限公司 一种移动中继的多分组数据网连接的建立方法及实现系统
US20120177005A1 (en) * 2011-01-06 2012-07-12 Samsung Electronics Co., Ltd. Method and apparatus for supporting user equipment mobility in a wireless communication system
CN102868994A (zh) * 2011-07-08 2013-01-09 北京三星通信技术研究有限公司 一种支持用户设备ue移动性的方法
CN102868999A (zh) * 2011-07-04 2013-01-09 中兴通讯股份有限公司 分组数据网络连接的建立方法及系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101212810B (zh) * 2006-12-27 2012-04-25 华为技术有限公司 无线网络中用户设备切换方法
CN102695294B (zh) * 2007-05-28 2015-01-21 华为技术有限公司 网络锚点的地址删除方法及通信系统
CN101552978B (zh) * 2008-03-31 2011-04-13 华为技术有限公司 实现路由优化的方法、系统及装置
CN101877842A (zh) * 2009-04-30 2010-11-03 大唐移动通信设备有限公司 一种保持紧急业务连续性的方法和设备
CN102833879B (zh) * 2009-08-28 2015-02-25 华为技术有限公司 释放连接的方法、装置及系统
EP2534861B1 (fr) * 2010-02-12 2016-04-20 Nec Corporation Procédé permettant de prendre en charge la sélection de connexions pdn pour un terminal mobile, et terminal mobile
CN102238727A (zh) * 2010-04-22 2011-11-09 大唐移动通信设备有限公司 一种选择分组数据网络网关pdn gw节点的方法、装置和系统
US9125213B2 (en) * 2011-01-07 2015-09-01 Lg Electronics Inc. Method and apparatus for verifying release of LIPA PDN connection in wireless communication system
JP5964860B2 (ja) * 2011-01-21 2016-08-03 ブラックベリー リミテッド （ローカル）オフロードのために用いられる接続のための接続コンテンツを決定するネットワーク装置およびプロセス
CN102917443A (zh) * 2012-10-23 2013-02-06 中国联合网络通信集团有限公司 网关选择及信息发送方法、装置及网络系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120177005A1 (en) * 2011-01-06 2012-07-12 Samsung Electronics Co., Ltd. Method and apparatus for supporting user equipment mobility in a wireless communication system
CN102868999A (zh) * 2011-07-04 2013-01-09 中兴通讯股份有限公司 分组数据网络连接的建立方法及系统
CN102868994A (zh) * 2011-07-08 2013-01-09 北京三星通信技术研究有限公司 一种支持用户设备ue移动性的方法
CN102448188A (zh) * 2011-12-05 2012-05-09 新邮通信设备有限公司 一种移动中继的多分组数据网连接的建立方法及实现系统

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108476438A (zh) * 2015-12-28 2018-08-31 华为技术有限公司 一种路径处理方法、装置及终端
CN109219097A (zh) * 2015-12-28 2019-01-15 华为技术有限公司 一种路径处理方法、装置及终端
CN108476438B (zh) * 2015-12-28 2020-06-26 华为技术有限公司 一种路径处理方法、装置及终端
US10716032B2 (en) 2015-12-28 2020-07-14 Huawei Technologies Co., Ltd. Path processing method and apparatus, and terminal
CN111885653A (zh) * 2015-12-28 2020-11-03 华为技术有限公司 一种路径处理方法、装置及终端
CN111885653B (zh) * 2015-12-28 2021-11-19 华为技术有限公司 用于用户设备的路径处理方法、装置、介质及用户设备
US11490353B2 (en) 2015-12-28 2022-11-01 Huawei Technologies Co., Ltd. Path processing method and apparatus, and terminal
CN109076625A (zh) * 2016-05-12 2018-12-21 华为技术有限公司 访问资源的方法、装置和系统
CN109156045A (zh) * 2016-05-12 2019-01-04 华为技术有限公司 访问资源的方法、装置和系统

Also Published As

Publication number Publication date
CN105009673A (zh) 2015-10-28
CN105009673B (zh) 2019-05-21
CN110430607B (zh) 2021-04-09
CN110430607A (zh) 2019-11-08

Similar Documents

Publication Publication Date Title
CN113785634B (zh) 通过无线网络进行无线设备寻呼
KR102310309B1 (ko) 이동 통신 시스템에서 음성 호 설정 시간을 단축시키는 방법 및 장치
US8787313B2 (en) Method, network system and destination network for transmitting QoS during a handover process between systems
JP5044020B2 (ja) Ｌｔｅシステムにおいて、ユーザ静的ｉｐアドレスのアドレッシングをサポートする方法、システムおよび装置
US9986496B2 (en) Method in a network node of a wireless communications network
US9019890B2 (en) Method for selecting a policy and charging rules function server on a non-roaming scene
US11129054B2 (en) Methods, systems and devices for supporting local breakout in small cell architecture
US8811342B2 (en) Method and system for deleting redundant information of home policy and charging rules function
WO2011060673A1 (fr) Procédé d'établissement de support public, procédé de transmission de données et appareil du côté du cœur de réseau
US20140169332A1 (en) Method for supporting selection of pdn connections for a mobile terminal and mobile terminal
WO2007147345A1 (fr) Procédé de sélection d'entité plan utilisateur du côté réseau et d'entité plan contrôle
JP6334242B2 (ja) トラフィック管理サーバ及び管理プログラム
WO2009117879A1 (fr) Procédé pour indiquer la gestion de support de la passerelle de desserte
KR101549108B1 (ko) 이동 통신 시스템에 있어서의 게이트웨이 리로케이션 제어 방법 및 제어 장치
WO2016107404A1 (fr) Procédé, dispositif et mme pour l'optimisation d'un trajet de transmission d'écoulement de trafic
WO2014000219A1 (fr) Procédé de rapport d'état de congestion et dispositif de réseau d'accès
WO2015100553A1 (fr) Procédé et dispositif d'évaluation de continuité de service
WO2012142889A1 (fr) Procédé de sélection de passerelle, et dispositif et système pour sa mise en œuvre
US20180227235A1 (en) Policy determining method and apparatus
WO2011097989A1 (fr) Procédé d'optimisation de recherche locale de personnes et appareil associé
EP3734905B1 (fr) Procédé de traitement de flux de données de service et dispositif connexe
WO2016107405A1 (fr) Procédé et dispositif d'optimisation de trajet d'émission de flux de trafic, et mme
WO2011150649A1 (fr) Procédé et dispositif de réallocation de passerelle de données par paquets

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: 13900618

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: 13900618

Country of ref document: EP

Kind code of ref document: A1