WO2013083004A1 - Procédé et dispositif pour assurer une continuité de service durant une procédure de mise à jour d'un plan média - Google Patents

Procédé et dispositif pour assurer une continuité de service durant une procédure de mise à jour d'un plan média Download PDF

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Publication number
WO2013083004A1
WO2013083004A1 PCT/CN2012/085193 CN2012085193W WO2013083004A1 WO 2013083004 A1 WO2013083004 A1 WO 2013083004A1 CN 2012085193 W CN2012085193 W CN 2012085193W WO 2013083004 A1 WO2013083004 A1 WO 2013083004A1
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WIPO (PCT)
Prior art keywords
terminal
port number
update
terminating
port
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PCT/CN2012/085193
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English (en)
Chinese (zh)
Inventor
周晓云
宗在峰
李振东
谢振华
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中兴通讯股份有限公司
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Publication of WO2013083004A1 publication Critical patent/WO2013083004A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer

Definitions

  • the present invention relates to the field of communications, and more particularly to a method and apparatus for implementing service continuity in a media plane update process. Background technique
  • IP-independent Internet Protocol (IP)-based communication networks include Next Generation Network (GN), IP Multimedia Core Subsystem (IMS), and Web-based Real-Time Communication Network (RTCWeb).
  • GN Next Generation Network
  • IMS IP Multimedia Core Subsystem
  • RTCWeb Real-Time Communication Network
  • the access network includes circuit CS domain access and packet PS domain access.
  • the CS domain access network includes Global System of Mobile Communication (GSM), Code Division Multiple Access (CDMA), and other networks such as Code Division Multiple Access (CDMA).
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • the PS domain access includes Long Term Evolution (LTE), High-Speed Packet Access (HSPA), Enhanced Data Rate for GSM Evolution (EDGE), and Evolution Data. (EVDO, Evolution, Data Only) and other networks.
  • the media plane needs to be updated due to the movement of the user equipment (UE, User Equipment) or the update of the service. Both parties of the communication need to update the media plane through the IP Multimedia System (IMS, IP Multimedia Subsystem) signaling.
  • IMS IP Multimedia Subsystem
  • the ongoing media communication may be interrupted, affecting the user experience.
  • Figure 1 is a flow chart of updating the port number of the media face and realizing service continuity during the course of the service, which is described as follows:
  • Step 101 UE-1 calls the session control function (P-CSCF, Proxy-Call Session) Control Function 1 sends an IMS update message, SDP (Session Description Protocol) offer, to inform the media side that the port number received from port (Portl) 1 is changed to Portl2.
  • P-CSCF1 further forwards the message to the proxy P-CSCF2;
  • Step 102 The P-CSCF2 further forwards the message to the UE-2.
  • Step 103 UE-2 returns an IMS OK message (ie, SDP Answer, also called a response message) to P-CSCF2 to notify its port number to be changed from Port 21 to Port 22;
  • IMS OK message ie, SDP Answer, also called a response message
  • Step 104 The P-CSCF2 provides the updated service information to the Policy and Charging Rules Function (PCRF), and carries the updated media information, and the updated port number Portl 2, Port22;
  • PCRF Policy and Charging Rules Function
  • Step 105 The PCRF2 provides an updated policy and charging control (PCC) rule to the terminating gateway packet gateway (P-GW, Packet Gateway) 2, where the PCC rule carries the updated flow description information Portl2 and Port22;
  • PCC policy and charging control
  • Step 106 P-GW2 initiates a bearer modification process, and notifies the updated flow description information to
  • P-GW2 will not allow the destination IP address to be the IP address (Address) 11, the destination port number Portl 1 as the uplink data, and the destination address to be IP Address 21, and the destination port number to be the downstream data of Port 22.
  • Step 107 UE2 sends media information to IPAddress1 and Port 12 by using IPAddress21 and Port22.
  • Step 108 The P-CSCF2 returns an IMS OK message to the P-CSCF1, and the port number of the UE2 is changed from Port 21 to Port 22;
  • Steps 108 and 104 are performed simultaneously.
  • Step 109 The P-CSCF2 returns an IMS OK message to the UE1, carrying the new port number Port22 of the UE2;
  • Step 110 The P-CSCF1 provides the updated service information to the PCRF1, and carries the updated media plane information, and the updated port number Portl2, Port22; Step 109 and step 110 are performed simultaneously.
  • Step 111 The PCRF1 provides the updated PCC rule to the P-GW1, where the PCC rule carries the new flow description information Portl2 and Port22;
  • Step 112 P-GW1 initiates a bearer modification process, and notifies UE1 of the updated flow description information.
  • P-GW1 will not allow the destination address to be IP Addressll, the destination port number Portll downlink data, and the destination address to be IPAddress21, and the destination port number to be Port21's upstream data.
  • step 105 since P-GW2 has changed Portl2 to Port22, the downlink data of Portl2 cannot reach UE2 at this time.
  • the UE1 does not know the new port number of the UE2 until step 109, so the data sent by the UE 1 to the UE2 in the time interval from step 105 to step 109 will be discarded.
  • the cross-domain is considered, the IMS signaling delay is large, resulting in a large number of discarded data packets, causing service interruption and affecting the user experience.
  • UE1 updates the IP address
  • UE1 updates the IP address and port number at the same time, and data service interruption occurs.
  • the main object of the present invention is to provide a method and system for implementing service continuity in a media plane update process, which is used to solve the technical problem of downlink media data interruption in the process of media surface update.
  • a method for implementing service continuity in a media plane update process comprising: in an update process of an IP address and/or a port number of a media plane when accessing an unrelated IP-based communication network, the terminal side P -
  • the GW opens the port number before and after the update of the terminating terminal before the corresponding bearer update is completed on the calling side.
  • the terminating side gateway closes the update of the terminating terminal. Port number.
  • the step of the terminal-side P-GW opening the port number before and after the update of the terminal-side terminal before the completion of the corresponding bearer update on the calling side is specifically:
  • the terminal-side policy charging rule function PCRF After the terminal-side proxy call session control function P-CSCF receives the response message of the terminal-side terminal notification to update the media port number, the terminal-side policy charging rule function PCRF provides the service information carrying the new flow description information;
  • the terminating side PCRF instructs the terminating side P-GW to open a new port
  • the P-GW of the terminating side allows the destination port to be the downlink service data flow of the port number before and after the update of the terminating terminal, or the source port is the uplink service data flow of the port number before and after the update of the terminating terminal. by.
  • the step of the terminal-side P-GW re-closing the pre-update port number of the terminal-side terminal is specifically:
  • the terminal-side P-CSCF After receiving the acknowledgement message fed back by the calling side P-CSCF, the terminal-side P-CSCF sends the service information carrying the port number before the terminal-end terminal update is deleted to the terminal-side PCRF;
  • the terminal-side PCRF indicates that the terminal-side P-GW closes the port number before the terminal-side terminal is updated, and the terminal-side P-GW only allows the destination port to be the downlink service data of the port number after the terminal-side terminal is updated.
  • the flow, or source port is the uplink service data flow of the port number updated by the terminating terminal.
  • the step of the terminal-side P-GW re-closing the pre-update port number of the terminal-side terminal is specifically:
  • the terminating side P-GW opens a new port according to the indication of the terminal side PCRF, the terminating side
  • P-GW starts the delay timer
  • the terminating side P-GW allows the destination port to be the downlink service data stream of the port number before and after the update of the terminating terminal, or the source port is the pre-update of the terminating terminal.
  • the uplink service data flow of the updated port number is passed;
  • the terminating side P-GW closes the terminal before the terminal end side update. Slogan.
  • the step of the terminal-side P-GW re-closing the pre-update port number of the terminal-side terminal is specifically:
  • the terminal-side P-GW detects whether the service data stream with the new port number of the terminating-end terminal is received as the destination port, and when the service data stream with the new port number as the destination port is detected, the terminating side
  • the P-GW turns off the port number before the update of the terminating side terminal.
  • the step of the terminal-side P-GW re-closing the pre-update port number of the terminal-side terminal is specifically:
  • the terminating side PCRF When the terminating side PCRF indicates that the terminating side gateway opens a new port, the terminating side PCRF starts a delay timer;
  • the terminating side PCRF instructs the terminal-side P-GW to close the port number before the terminal-side terminal is updated.
  • the method for the terminal-side PCRF to instruct the terminal-side P-GW to open a new port is specifically: the updated policy charging and controlling PCC rules provided by the terminal-side PCRF to the term-side gateway ;
  • the PCC rule includes flow description information of the updated port number.
  • the method for the terminal-side PCRF to indicate that the terminal-side gateway closes the port number before the terminal-side terminal is updated is specifically: the updated PCC rule provided by the terminal-side PCRF to the terminal-side gateway Wherein the PCC rule does not include flow description information of the port number before the update.
  • the present invention also provides a system for implementing service continuity in a media plane update process, the system being applied to an IP address and/or port number update process of a media plane in an access-independent IP-based communication network, the system comprising: a terminating side P-GW, a terminating side PCRF, and a terminating side P-CSCF; wherein
  • the terminal-side P-CSCF is configured to: after receiving the response message of the terminal-side terminal to update the media port number, provide the service information carrying the new flow description information to the terminal-side PCRF;
  • the terminal-side PCRF is configured to: after receiving the service information sent by the P-CSCF on the terminating side, instruct the terminal-side P-GW to open a new port;
  • the terminal-side P-GW is configured to receive the indication that the terminal-side PCRF sends a new port, and before the call-side completes the corresponding update, and allows the destination port to be the pre-update terminal and the updated terminal.
  • the downlink service data flow of the port number, or the uplink service data flow of the port number before and after the update of the source port is updated; and after the corresponding bearer update is completed on the originating side, the update of the terminal end terminal is closed.
  • the previous port number is configured to receive the indication that the terminal-side PCRF sends a new port, and before the call-side completes the corresponding update, and allows the destination port to be the pre-update terminal and the updated terminal.
  • the terminating side P-CSCF is further configured to: after receiving the acknowledgement message fed back by the calling side P-CSCF, send, to the terminating side PCRF, the service information carrying the port number before the terminal of the terminal device is updated. ;
  • the terminal-side PCRF is further configured to instruct the terminal-side P-GW to close a port number before the terminal-side terminal is updated;
  • the terminating side P-GW is further configured to: after the port number before the terminal end of the terminal is updated, the destination port is allowed to be the downlink service of the port number after the terminal of the terminal is updated.
  • the data stream or the source port is the uplink service data stream of the port number updated by the terminating side terminal.
  • the terminating side P-GW is further configured to start a delay timer when the new port is opened according to the indication of the terminal call side PCRF; during the timeout period of the delay timer, the destination port is allowed to be The downlink service data flow of the port number before and after the update of the terminating terminal, or the uplink service data flow of the port number before and after the update of the source port is updated; after the delay timer expires , Close the port number before the terminal of the terminal is updated.
  • the terminating side P-GW is further configured to detect whether a service data flow with the new port number of the terminating terminal is received as the destination port, and when the service data stream with the new port number as the destination port is detected, Close the port number before the update of the terminating terminal.
  • the present invention also provides a P-GW, where the P-GW includes: a management module, configured to access In an unrelated IP-based communication network, during the update process of the IP address and/or port number of the media side, before the calling side completes the corresponding bearer update, the port number before and after the update of the terminal-side terminal is simultaneously opened. After the call side completes the corresponding update, the port number before the update of the terminal side terminal is closed.
  • a management module configured to access In an unrelated IP-based communication network, during the update process of the IP address and/or port number of the media side, before the calling side completes the corresponding bearer update, the port number before and after the update of the terminal-side terminal is simultaneously opened. After the call side completes the corresponding update, the port number before the update of the terminal side terminal is closed.
  • the management module is specifically configured to: after receiving the indication of opening a new port sent by the terminal-side PCRF, and allowing the destination port to be a downlink service data flow before and after the terminal-end terminal update, Or the source port is the uplink service data flow of the port number before and after the update of the terminating terminal.
  • the management module is specifically configured to: after receiving the indication of deleting the new port sent by the terminal-side PCRF, close the port number before the terminal-end terminal is updated, and only allow the destination port to be updated after the terminal-side terminal is updated.
  • the downlink service data flow of the port number or the uplink service data flow whose source port is the port number after the terminal of the terminal is updated.
  • the P-GW further includes: a timing module, configured to receive a notification start delay timer sent by the management module, and notify the management module that the delay timer expires when the delay timer expires;
  • the management module is further configured to: when the new port is opened according to the indication of the terminal call side PCRF, notify the timing module to start a delay timer, where the destination port is allowed to be within the timeout period of the delay timer.
  • the downlink service data flow of the port number before and after the update of the terminating terminal, or the uplink service data flow of the port number before and after the update of the source port is updated after the delay timer expires. , Close the port number before the terminal of the terminal is updated.
  • the P-GW further includes: a detecting module, configured to detect whether a service data flow with the new port number of the terminal end terminal as the destination port is received, and when the service data with the new port number as the destination port is detected In the case of the flow, the notification management module closes the port number before the update of the terminating terminal.
  • the management module is further configured to close the port number before the update of the terminating terminal according to the notification sent by the detecting module.
  • the terminal-side gateway simultaneously opens the port number before and after the update of the terminal-side terminal.
  • the terminal-side gateway closes the port number before the update of the terminal-side terminal, thereby avoiding The interruption of the downlink media data during the media update process improves the data transmission efficiency and improves the user experience.
  • FIG. 1 is a flow chart for implementing business continuity in an existing media plane update process
  • FIG. 1 is a flowchart of Embodiment 1 of the present invention
  • FIG. 3 is a flow chart of Embodiment 1 of the present invention.
  • FIG. 4 is a flow chart of Embodiment 3 of the present invention.
  • FIG. 5 is a flow chart of Embodiment 4 of the present invention.
  • FIG. 6 is a flow chart of Embodiment 5 of the present invention.
  • FIG. 7 is a flow chart showing Embodiment 6 of the present invention. detailed description
  • FIG. 2 is a flow chart of updating the port number of the media surface and realizing business continuity during the process of the service according to the present invention, and the description thereof is as follows:
  • Step 201 The P-CSCF receives the IMS update message, that is, the SDP offer (SDP offer) message, and the calling side terminal UE1 requests to change the media plane receiving port number, and changes from Portll to Portl2; Generally, traffic description information of one or more service data flows may be included in the service information.
  • the receiving port number and the sending port number are the same.
  • Step 202 The P-CSCF forwards the message to UE2.
  • Step 203 The UE2 returns an IMS OK message to the P-CSCF, that is, the SDP Answer, also called the response message, notifying the peer UE2 that the media plane receiving port number is changed from Port 21 to Port 22;
  • Step 204 The P-CSCF provides the service information to the PCRF. , carrying a new flow description information, Port 11 changed to Portl2, port21 changed to Port22;
  • Step 205 The PCRF sends a PCC rule providing message to the terminating side gateway (P-GW), which carries the updated port Port22, and updates the PCC rule, that is, adds the receiving port of the UE2 in the flow description information of the PCC rule corresponding to the service information. Port22.
  • P-GW terminating side gateway
  • Step 206 The P-GW performs the corresponding bearer modification operation according to the updated PCC rule. After that, the P-GW will simultaneously allow the downlink service data flow of the destination port to be the port 21 and the port 22, or the source port number is the uplink service data of the port 21 and the port 22. Flow through.
  • Step 207 UE2 uses IPAddress21, and Port22 sends data to Address1 and Portl2 of UE1.
  • Step 208 The P-CSCF forwards the IMS OK message to the proxy call session control function on the calling side, where the new port number Port22 of the UE2 is carried;
  • Step 204 and step 208 are synchronized.
  • Step 209 The P-CSCF receives an IMS ACK message (also referred to as an acknowledgement message) sent by the P-CSCF on the originating side;
  • IMS ACK message also referred to as an acknowledgement message
  • Step 210 The P-CSCF forwards the IMS ACK message to the UE2.
  • Step 211 The P-CSCF provides service information to the PCRF, and notifies the PCRF to delete the original received port Port21 of the UE2;
  • Step 212 The PCRF provides an updated PCC rule to the PCEF, that is, the receiving port Port21 of the UE2 is deleted in the flow description information of the PCC rule corresponding to the service data flow, and is sent to the P-GW. Sending a PCC rule providing message carrying the information of the receiving port Port 21 of the UE2;
  • Step 213 The P-GW performs a corresponding bearer modification operation according to the updated PCC rule. After that, the P-GW will not allow the destination port to be the downlink service data flow of Port 21 or the source service port number of Port 21 to pass the uplink service data flow.
  • FIG. 3 is a flow chart of updating the port number of the media plane and realizing business continuity during the process of the service according to the present invention, and the description thereof is as follows:
  • Steps 301 through 306 are the same as steps 201 through 206.
  • Step 307 The P-GW starts a delay timer, and the timing duration of the delay timer depends on the network configuration.
  • Step 308 UE2 uses IPAddress2, and Port22 sends data to Address1 and Portl2 of UE1.
  • Step 309 The P-CSCF forwards the IMS OK message.
  • Step 304 and step 309 are synchronized.
  • Step 310 The delay timer started in step 307 expires, and the P-GW deletes the receiving port Port21 of the UE2 from the flow description information of the PCC rule corresponding to the service data flow;
  • the P-GW will not allow the destination service port to be the downlink service data flow of Port 21 or the uplink service data flow whose source port number is Port 21.
  • the P-GW when the PCRF provides the PCC rule to the P-GW in step 305, the P-GW starts the delay timer (the timing of the delay timer depends on the network configuration), when the delayed timer is started At the time, the PCRF provides updated PCC rules to the P-GW, where the updated PCC
  • the rule does not include the flow description information of the port number before the terminal of the terminal is updated, but only the flow description information of the port number after the terminal of the terminal is updated (ie, the PCRF indicates the port number before the P-GW closes the terminal of the terminal. ).
  • the P-GW performs a bearer operation.
  • FIG. 3 is a flow chart of updating the port number of the media plane and realizing business continuity during the process of the service according to the present invention, and the description thereof is as follows:
  • Step 401 - Step 408 is the same as step 201 - step 208.
  • Step 409 The P-GW detects the service data flow whose destination port number is Port22, and the P-GW deletes the receiving port Port21 of the UE2 from the flow description information of the PCC rule corresponding to the service data flow;
  • the P-GW will not allow the destination service port to be the downlink service data flow of Port 21 or the uplink service data flow whose source port number is Port 21.
  • FIG. 5 is a flow chart of updating the IP address of the media plane and realizing business continuity during the progress of the service according to the present invention, and the description thereof is as follows:
  • Step 501 The P-CSCF receives the IMS update message, that is, the SDP offer, and the calling side terminal UE1 requests to change the address of the media plane from Addressll to Addressl2, and changes the receiving port number from Portl1. Change to Portl2;
  • Step 502 The P-CSCF forwards the message to the UE2.
  • Step 503 UE2 returns an IMS OK message to the P-CSCF, that is, SDP Answer, notifying that the media plane receiving port number of the UE2 is changed from Port21 to Port22;
  • Step 504 The P-CSCF provides service information to the PCRF, where the new flow description information is carried.
  • Step 505-Step 511 is the same as Step 205-Step 211.
  • FIG. 6 is a flow chart of updating the IP address of the media plane and realizing business continuity during the progress of the service according to the present invention, which is described as follows:
  • Steps 601 to 604 are the same as steps 501 to 504;
  • Steps 605 through 610 are the same as steps 305 through 310.
  • the P-GW when the PCRF provides the PCC rule to the P-GW in step 605, the P-GW starts the delay timer (the timing of the delay timer depends on the network configuration), when the delayed timer is started.
  • the PCRF provides an updated PCC rule to the P-GW, where the updated PCC rule does not include the flow description information of the port number before the terminal of the terminal is updated, but only the flow description of the port number after the terminal of the terminal is updated.
  • Information ie, the PCRF indicates that the P-GW closes the port number before the terminal of the terminal-side terminal is updated).
  • the P-GW performs a bearer operation.
  • FIG. 7 is a flow chart of updating the IP address of the media plane and realizing business continuity during the process of the service according to the present invention, and the description thereof is as follows:
  • the calling side terminal UE1 and the terminating side terminal UE2 communicate, and the media plane address and port number are as follows: the calling side terminal receiving address Addressll, the port number Portll, the terminating side terminal receiving address Address21, and the port number Port21.
  • UE1 decides to change the address of the media plane to Address 12 and the receiving port number to Portl2.
  • Step 701 to step 704 are the same as steps 501 to 504;
  • Steps 705 to 709 are the same as steps 405 to 409.
  • the terminating side access network system uses an EPS (Evolved Packet System) as an example. Since the IMS is independent of access, the access network system can be any packet system (such as GPRS (General Packet Radio System), UMTS (Universal Mobile Telecommunications System).
  • the P-GW in the example may also be another packet data gateway (such as a GGSN (GRPS Gateway Supporting Node), a PDG (Packet Data Gateway), or the like).
  • GGSN GRPS Gateway Supporting Node
  • PDG Packet Data Gateway
  • the present invention provides a system for implementing service continuity in a media plane update process, which is applied to an IP address and/or port number update process of a media plane in an access-independent IP-based communication network, including: a side P-GW, a terminating side PCRF, and a terminating side P-CSCF; wherein, the terminating side P-CSCF is configured to: after receiving the response message of the terminal side terminal to update the media port number, to the terminating side
  • the PCRF provides service information carrying new flow description information
  • a terminal call side PCRF configured to indicate that the terminal side P-GW opens a new port
  • the terminating side P-GW is configured to allow the destination port to be the downlink service data flow before and after the update of the terminal number of the terminating terminal, or the source port is the terminating side before completing the corresponding loading update on the calling side.
  • the uplink service data flow of the port number before and after the update of the terminal is passed; and after the corresponding bearer update is completed on the originating side, the port number before the update of the terminal side terminal is closed.
  • the terminal-side P-CSCF is further configured to: after receiving the acknowledgement message fed back by the calling-side P-CSCF, send the service information carrying the port number before the terminal-end terminal update is deleted to the terminal-side PCRF;
  • the terminal-side PCRF is further configured to instruct the terminal-side P-GW to close a port number before the terminal-side terminal is updated;
  • the terminal-side P-GW only allows the destination port to be the downlink service data stream of the port number after the terminal-side terminal is updated, or the source port is the terminal-side terminal after the terminal is updated.
  • the upstream traffic of the port number passes.
  • the terminating side P-GW is further configured to: when a new port is opened according to the indication of the terminal call side PCRF, start a delay timer; during the timeout period of the delay timer, allow the destination port to be the terminating side
  • the downlink service data flow of the port number before and after the update of the terminal, or the uplink service data flow of the port number before and after the update of the source port is updated; after the delay timer expires, the terminal is closed.
  • the port number before the caller terminal is updated.
  • the P-GW of the terminating side is further configured to detect whether the service data flow with the new port number of the terminating terminal is received as the destination port, and when the service data flow with the new port number as the destination port is detected, the terminal call is closed. The port number before the update of the side terminal.
  • the P-GW includes: a management module, configured to update, during an access-independent IP-based communication network, an IP address and/or a port number of the media plane, before the calling side completes the corresponding bearer update, At the same time, the port number before and after the update of the terminal end terminal is opened. When the originating side completes the corresponding bearer update, the port number before the update of the terminating side terminal is closed.
  • the management module is specifically configured to: after receiving the indication of opening a new port sent by the terminal-side PCRF, the destination port is the downlink service data flow of the port number before and after the update of the terminating terminal, or the source port.
  • the uplink service data flow of the port number before and after the update of the terminal end terminal is passed.
  • the management module is specifically configured to: after receiving the indication of deleting the new port sent by the terminal-side PCRF, close the port number before the terminal-side terminal is updated, and only allow the destination port to be the port number of the terminal-end terminal after the update.
  • the downlink service data flow or the uplink service data flow whose source port is the port number updated by the terminating side terminal passes.
  • the P-GW further includes: a timing module, configured to receive a notification start delay timer sent by the management module, and notify the management module that the delay timer expires when the delay timer expires; correspondingly, the management module And when the new port is opened according to the indication of the terminal-side PCRF, the notification timing module starts a delay timer, and within the timeout period of the delay timer, the destination port is allowed to be the terminal before the terminal-end terminal is updated.
  • the downlink service data flow of the updated port number, or the uplink service data flow of the port number before and after the update of the source port is updated, and after the delay timer expires, the terminal end terminal update is closed.
  • the previous port number configured to receive a notification start delay timer sent by the management module, and notify the management module that the delay timer expires when the delay timer expires; correspondingly, the management module
  • the notification timing module starts a delay timer, and within the timeout period of the delay timer, the destination port is allowed to
  • the P-GW further includes: a detecting module, configured to detect whether a service data flow with the new port number of the terminating terminal is used as the destination port, and when the service data flow with the new port number as the destination port is detected,
  • the notification management module closes the port number before the update of the terminating terminal.
  • the management module is further configured to close the port number before the update of the terminating terminal according to the notification sent by the detecting module.

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Abstract

La présente invention se rapporte à un procédé adapté pour assurer une continuité de service durant une procédure de mise à jour d'un plan média. Le procédé selon l'invention comprend les étapes suivantes : lors de l'accès à un réseau de communication non pertinent sur la base du Protocole Internet (IP), durant une procédure de mise à jour d'adresse IP et/ou de numéro de port d'un plan média, une passerelle située sur le côté de terminaison d'un appel (P-GW) ouvre un numéro de port d'un terminal situé sur le côté de terminaison d'un appel, avant et après une mise à jour, avant que le côté d'initiation d'un appel n'exécute la mise à jour de porteuse correspondante, et après que le côté d'initiation d'un appel n'exécute la mise à jour de porteuse correspondante ; et, dans le même temps, une passerelle de terminaison d'un appel ferme le numéro de port du terminal situé sur le côté de terminaison d'un appel, avant qu'une nouvelle mise à jour ne soit exécutée. La présente invention se rapporte d'autre part à un service adapté pour assurer une continuité de service durant une procédure de mise à jour d'un plan média. La présente invention peut être appliquée dans le but de résoudre le problème lié, dans l'état de la technique, au fait que la transmission des données multimédias sur la liaison descendante peut être interrompue durant la procédure de mise à jour d'un plan média.
PCT/CN2012/085193 2011-12-08 2012-11-23 Procédé et dispositif pour assurer une continuité de service durant une procédure de mise à jour d'un plan média WO2013083004A1 (fr)

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CN201110406368.4A CN103167462B (zh) 2011-12-08 2011-12-08 一种媒体面更新过程中实现业务连续性的方法及装置

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US20090310756A1 (en) * 2008-06-12 2009-12-17 Brugman David L Method and Apparatus for Testing New Copper Connections during Migration from Analog Network Elements to Next Generation Network (NGN) Elements
CN101692652A (zh) * 2009-09-15 2010-04-07 杭州华三通信技术有限公司 一种防止聚合链路中流量中断的方法及装置

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ES2817080T3 (es) * 2007-11-19 2021-04-06 Ericsson Telefon Ab L M Autorización previa de establecimiento de portador
CN101646256B (zh) * 2009-09-04 2012-06-27 华为技术有限公司 跨无线接入技术的语音切换方法、设备及网络系统
CN102104848B (zh) * 2009-12-16 2014-08-06 中国移动通信集团公司 双模单待语音业务连续性的实现方法及ip多媒体子系统

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US20090116395A1 (en) * 2007-11-01 2009-05-07 Fujitsu Limited Communication apparatus and method
CN101594648A (zh) * 2008-05-29 2009-12-02 上海无线通信研究中心 个域网在ip多媒体子系统中的无缝切换方法
US20090310756A1 (en) * 2008-06-12 2009-12-17 Brugman David L Method and Apparatus for Testing New Copper Connections during Migration from Analog Network Elements to Next Generation Network (NGN) Elements
CN101692652A (zh) * 2009-09-15 2010-04-07 杭州华三通信技术有限公司 一种防止聚合链路中流量中断的方法及装置

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CN103167462B (zh) 2017-12-19

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