WO2012149894A1 - Procédé et dispositif de transmission de données en repli sur commutation de circuits - Google Patents

Procédé et dispositif de transmission de données en repli sur commutation de circuits Download PDF

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Publication number
WO2012149894A1
WO2012149894A1 PCT/CN2012/075002 CN2012075002W WO2012149894A1 WO 2012149894 A1 WO2012149894 A1 WO 2012149894A1 CN 2012075002 W CN2012075002 W CN 2012075002W WO 2012149894 A1 WO2012149894 A1 WO 2012149894A1
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WO
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Prior art keywords
request message
release
access bearer
service
packet
Prior art date
Application number
PCT/CN2012/075002
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English (en)
Chinese (zh)
Inventor
刘海
吴晓波
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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.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2012149894A1 publication Critical patent/WO2012149894A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]

Definitions

  • the present invention relates to the field of communications, and more particularly to a method and apparatus for data transmission in circuit domain fallback in the field of communications.
  • the telecommunication network develops into a Long Term Evolution (LTE) network, which can provide higher data throughput.
  • LTE Long Term Evolution
  • a voice service can be provided using a circuit back to CS (CS Fallback) technology.
  • the CSFB technology refers to the user equipment (User Equipment, called "UE") attached to the LTE network.
  • UE User Equipment
  • Circuit Switch (Circuit Switch, called “CS")
  • CS Circuit Switch
  • the fallback method adopted in CSFB technology generally includes three methods: Packet switched domain switching
  • PS Handover Packet Switch handover, "PS Handover"
  • Network Assisted Cell Change/Cell Change Order Network Assisted Cell Change/Cell Change Order
  • the NACC/CCO mode may be a base station, such as an evolved base station (Evolved NodeB, called " ⁇ "), which sends a CCO command to the UE, instructing the UE to select the designated 2G/3G cell, if the CCO command includes the specified 2G.
  • the system message of the /3G cell, then the CCO command can be called NACC; the Redirection mode refers to redirecting to the 2G/3G cell, and the specific mode can use the radio resource control protocol for the ENB.
  • RRC Radio Resource Control
  • RRC Connection Release RRC Connection Release
  • the ENB can carry the circuit domain fallback trigger cause value in the message that the ENB notifies the MME to release the bearer resources of the access network, that is, the CSFB triggered cause. value.
  • Embodiments of the present invention provide a method and apparatus for data transmission in circuit domain fallback, which can reduce the load of a mobility management entity.
  • an embodiment of the present invention provides a method for data transmission in a circuit domain fallback, the method comprising: receiving a resource release request message sent by a base station; determining, according to the resource release request message, not performing a packet switch service And sending a release access bearer request message to the serving gateway according to the resource release request message, where the release access bearer request message includes a stop indication, where the stop indication is used to indicate that the service gateway does not send the downlink triggered by the packet switched service
  • the present invention provides a method for data transmission in a circuit domain fallback, the method comprising: receiving a release access bearer request message sent by a mobility management entity, the release access bearer The request message includes a stop indication, which is used to indicate that the downlink data notification message triggered by the packet switched service is not sent to the mobility management entity; and the bearer resource of the access network is released according to the release access bearer request message.
  • an embodiment of the present invention provides a device for data transmission in circuit domain fallback.
  • the device includes: a receiving module, configured to receive a resource release request message sent by the base station; a determining module, configured to determine, according to the resource release request message received by the receiving module, that the packet switching service suspension operation is not performed; The resource release request message received by the receiving module sends a release access bearer request message to the serving gateway, where the release access bearer request message includes a stop indication, where the stop indication is used to indicate that the serving gateway does not send the downlink triggered by the packet switched service Data notification message.
  • an embodiment of the present invention provides an apparatus for data transmission in a circuit domain fallback, where the apparatus includes: a receiving module, configured to receive a release access bearer request message sent by a mobility management entity, where the release The inbound bearer request message includes a stop indication, which is used to indicate that the downlink data notification message triggered by the packet switching service is not sent to the mobility management entity, and a release module, configured to receive the release access bearer request message according to the receiving module Release the bearer resources of the access network.
  • the method and apparatus for data transmission in circuit domain fallback can prevent the serving gateway from falling back to the terminal device by sending a release access bearer request message including a stop indication to the serving gateway.
  • the downlink data notification message triggered by the packet-switched service is sent to the mobility management entity, and the MME is unable to page the UE because the UE has left the LTE, thereby causing the MME to be overloaded, thereby reducing the mobility.
  • the load of the management entity reduces the system overhead.
  • FIG. 1 is a schematic flow chart of a method for data transmission in circuit domain fallback according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for data transmission in circuit domain fallback according to another embodiment of the present invention
  • 3 is a schematic flowchart of a method for data transmission in circuit domain fallback according to still another embodiment of the present invention
  • FIG. 4 is a schematic flow chart of a method for data transmission in circuit domain fallback according to still another embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of an apparatus for data transmission in circuit domain fallback according to an embodiment of the present invention.
  • FIG. 6 is a schematic block diagram of an apparatus for data transmission in circuit domain fallback according to another embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of an apparatus for data transmission in circuit domain fallback in accordance with still another embodiment of the present invention. detailed description
  • FIG. 1 shows a schematic flow diagram of a method 100 for data transmission in circuit domain fallback in accordance with an embodiment of the present invention. As shown in FIG. 1, the method 100 includes:
  • S120 determining, according to the resource release request message, that the packet switching service suspension operation is not performed; S130, according to the resource release request message, sending a Release Access Bearer Request message to the serving gateway, where the release access bearer is released.
  • the request message includes a stop indication, which is used to indicate that the serving gateway does not send the downlink data notification message triggered by the packet switched service.
  • the MME After receiving the resource release request message sent by the ENB, the MME determines that the UE is backed off according to the resource release request message after the UE is backed up to the 2G/3G network in the NACC/CCO mode or the Redirection mode. CS service after 2G/3G network At the same time, the PS service can be performed, that is, it is determined that the packet switched service suspension operation is not performed.
  • the MME In order to prevent the SGW from receiving the data of the PS service, the MME is overloaded by sending the downlink data notification message to the MME, and the MME sends a release access bearer request message to the serving gateway, where the release access bearer request message is used to indicate The SGW releases the bearer resource that is connected to the base station, and the release access bearer request message further includes a stop indication, where the stop indication is used to indicate that the serving gateway does not send the downlink data notification message triggered by the packet switched service.
  • the method for data transmission in circuit domain fallback can prevent the serving gateway from falling back to the circuit switched network during the terminal device by sending a release access bearer request message including the stop indication to the serving gateway.
  • the mobility management entity sends a downlink data notification message triggered by the packet switching service, and avoids that the MME cannot page the UE because the UE has left the LTE, thereby causing the MME to be overloaded, thereby reducing the load of the mobility management entity. , reduce system overhead.
  • the mobility management entity may determine that the packet switching service suspension operation is not performed according to the circuit domain fallback trigger cause value carried in the resource release request message. That is, if the reason value carried in the resource release request message is CSFB Triggered, it indicates that the UE can perform the PS service while performing the CS service after the UE is rolled back to the 2G/3G network, and does not perform the PS service suspension operation. Therefore, based on the CSFB Triggered cause value carried by the resource release request message, it can be determined that the packet switched service suspend operation is not performed.
  • the stop indication included in the release access bearer request message is used to instruct the SGW to stop sending the downlink data notification message triggered by the PS service to the MME.
  • the stop indication includes a pause downlink packet notification request indication, and is used to instruct the SGW to suspend sending a downlink data notification message triggered by the PS service to the MME.
  • the stop indication includes a Delay Downlink Packet Notification Request (instruction), configured to instruct the SGW to delay sending a downlink data notification message triggered by the PS service to the MME.
  • the stop indication may be carried in a delayed downlink packet notification request field newly added by the release access bearer request message. Certainly, the stop indication may also be carried in the other addition of the release access bearer request message. In the field.
  • the method 200 includes:
  • the serving gateway receives a release access bearer request message sent by the mobility management entity, where the release access bearer request message includes a stop indication, where the stop indication is used to indicate that the packet switched service trigger is not sent to the mobility management entity.
  • Downstream data notification message is used to indicate that the packet switched service trigger is not sent to the mobility management entity.
  • the stop indication is carried in a delayed downlink packet notification request field newly added by the release access bearer request message.
  • the stop indication includes a delayed downlink packet notification request indication, and is used to instruct the SGW to delay sending a downlink data notification message triggered by the PS service to the MME.
  • the stop indication includes a pause downlink packet notification request indication, and is used to instruct the SGW to suspend sending a downlink data notification message triggered by the PS service to the MME.
  • the serving gateway releases the bearer resource of the access network according to the release access bearer request message.
  • the serving gateway does not send a downlink data notification message triggered by the packet switching service to the mobility management entity according to the stop indication in the release access bearer request message, thereby avoiding the mobility management entity load boosting port.
  • the method for data transmission in circuit domain fallback can prevent the serving gateway from moving to the mobility of the terminal device during the fallback of the terminal device to the circuit switched network by sending the release access bearer request message including the stop indication to the serving gateway.
  • the management entity sends a downlink data notification message triggered by the packet switching service, and avoids that the MME cannot page the UE because the UE has left the LTE, thereby causing the MME to be overloaded, thereby reducing the load of the mobility management entity. Small system overhead.
  • the serving gateway may determine, according to the value of the status bit, the downlink data notification message that is not triggered by the packet switching service.
  • the value of the status bit is determined by the stop indication included in the Release Access Bearer Request message. Specifically, whether the downlink data notification message is sent may be determined according to whether the status bit is 0 or 1. For example, the serving gateway determines to not send the downlink data notification message according to the status bit being 0.
  • the stop indication corresponds to a higher priority than the received number. According to the corresponding priority. For example, if the status bit is 1, it indicates that the serving gateway receives the data, but on the other hand, if the serving gateway also receives a stop indication indicating that the downlink data notification message is not sent to the mobility management entity, the serving gateway does not move to mobility management. The entity sends a downlink data notification message.
  • the method 300 for data transmission in the circuit domain fallback may further Includes:
  • the serving gateway receives data of the packet switching service sent by the packet data gateway.
  • the service gateway discards or caches the data.
  • the S310 and S320 included in the method 300 are the same as the S210 and S220 in the method 200, and are not described herein again.
  • the SGW In the process of deleting the bearer resource of the access network until the re-establishment of the bearer resource of the access network, if the SGW receives the data of the PS service sent by the packet data gateway, the SGW receives the release access bearer request message according to the received
  • the stop indication in the middle does not send a downlink data notification message triggered by the packet switched service to the MME, and may discard or cache the data.
  • the following describes a process for the UE to fall back to the 2G/3G network through the NACC/CCO mode or the Redirection mode as an example, and specifically describes a method 400 for data transmission in the circuit domain fallback according to an embodiment of the present invention.
  • the UE when the UE needs to perform the voice service by using the CSFB technology, the UE sends an extended service request (Extended Service Request) message to the MME to indicate that the MME UE needs to perform voice service through the CSFB technology.
  • the MME After receiving the extended service request message, the MME sends a circuit domain fallback notification (CSFB Indication) to the ENB, as shown in S420.
  • the ENB After receiving the circuit domain fallback notification, the ENB sends a CCO/NACC or Redirection message to the UE, as shown in S430.
  • the MME sends a resource release request message, where the resource release request message carries the PS service.
  • the 2G/3G continues indication, which is, for example, a CSFB Triggered cause value, as indicated by S440.
  • the MME determines, according to the CSFB Triggered cause value in the resource release request message, that the UE can roll back to the 2G/3G network and perform the PS service, that is, the PS service is determined to be not executed.
  • the packet switched service suspends operations.
  • the MME sends a release access bearer request message to the serving gateway, where the release access bearer request message is used to indicate that the SGW releases the bearer resource connected to the base station, and the release access bearer request message is further And including a stop indication, the stop indication is used to indicate that the serving gateway does not send the downlink data notification message triggered by the packet switched service, as shown in S450. Therefore, during this period, if the SGW receives the data of the packet switched service sent by the packet data gateway, the SGW does not send the downlink data notification message triggered by the packet switched service to the MME, and may discard or cache the data.
  • the terminal device accesses the 2G/3G network, as shown in S460. After the terminal device accesses the 2G/3G network, the terminal device sends a location update (Routing Area Update)
  • the "RAU” message is sent to the 2G/3G Mobile Management Entity SGSN (Serving GPRS Support Node, called "SGSN") for restoring PS services, as shown in S470.
  • SGSN Serving GPRS Support Node
  • the SGW re-establishes the access network bearer resources.
  • the terminal device continues the voice service in the 2G/3G network.
  • the bearer resource of the SGW access network is re-established successfully.
  • the SGW can pass the wireless control node/base station controller (RAN control node, called “RNC,, / Base Station Controller, the tube is called "BSC"). ) Send data of the PS service to the UE.
  • RNC wireless control node
  • BSC Base Station Controller
  • the method for data transmission in circuit domain fallback can prevent the serving gateway from moving to the mobility of the terminal device during the fallback of the terminal device to the circuit switched network by sending the release access bearer request message including the stop indication to the serving gateway.
  • the management entity sends a downlink data notification message triggered by the packet switching service, and avoids that the MME cannot page the UE because the UE has left the LTE, thereby causing the MME to be overloaded, thereby reducing the load of the mobility management entity. Small system overhead.
  • FIG. 5 shows a schematic block diagram of an apparatus 500 for data transmission in circuit domain fallback in accordance with an embodiment of the present invention.
  • the apparatus 500 includes:
  • the receiving module 510 is configured to receive a resource release request message sent by the base station;
  • the determining module 520 is configured to determine, according to the resource release request message received by the receiving module 510, that the packet switching service suspension operation is not performed;
  • the sending module 530 is configured to send, according to the resource release request message received by the receiving module 510, a release access bearer request message to the serving gateway, where the release access bearer request message includes a stop indication, where the stop indication is used to indicate that the service gateway does not Sending a downlink data notification message triggered by the packet switching service.
  • the apparatus for data transmission in the circuit domain fallback can prevent the serving gateway from moving to the mobility during the terminal device fallback to the circuit switched network by sending a release access bearer request message including the stop indication to the serving gateway.
  • the management entity sends a downlink data notification message triggered by the packet switching service, and avoids that the MME cannot page the UE because the UE has left the LTE, thereby causing the MME to be overloaded, thereby reducing the load of the mobility management entity. Small system overhead.
  • the determining module 520 is further configured to determine, according to the circuit domain fallback trigger cause value carried in the resource release request message, that the packet switched service suspension operation is not performed.
  • the sending module 530 is further configured to send a release access bearer request message to the serving gateway, where the newly added delayed downlink packet notification request field of the release access bearer request message carries the stop indication.
  • the stop indication may also be carried in other newly added fields of the release access bearer request message.
  • the stop indication includes a pause downlink packet notification request indication, and is used to instruct the SGW to suspend sending a downlink data notification message triggered by the PS service to the MME.
  • the stop indication includes a delayed downlink packet notification request indication, and is used to instruct the SGW to delay sending a downlink data notification message triggered by the PS service to the MME.
  • the device 500 is a mobility management entity.
  • the above and other operations and/or functions of the entities, and the various modules of the apparatus 500, respectively, are for the purpose of implementing the corresponding processes in the methods 100 and 400 of Figures 1 and 4, and are not described herein.
  • FIG. 6 shows a schematic block diagram of an apparatus 600 for data transmission in circuit domain fallback in accordance with another embodiment of the present invention.
  • the apparatus 600 includes: The receiving module 610 is configured to receive a release access bearer request message sent by the mobility management entity, where the release access bearer request message includes a stop indication, where the stop indication is used to indicate that the packet switched service trigger is not sent to the mobility management entity. Downstream data notification message;
  • the release module 620 is configured to release the bearer resource of the access network according to the release access bearer request message received by the receiving module.
  • the apparatus for data transmission in the circuit domain fallback can prevent the serving gateway from moving to the mobility during the terminal device fallback to the circuit switched network by sending a release access bearer request message including the stop indication to the serving gateway.
  • the management entity sends a downlink data notification message triggered by the packet switching service, and avoids that the MME cannot page the UE because the UE has left the LTE, thereby causing the MME to be overloaded, thereby reducing the load of the mobility management entity. Small system overhead.
  • the receiving module 610 is further configured to receive data of the packet switching service sent by the packet data gateway;
  • the apparatus 600 can also include:
  • the processing module 630 is configured to discard or cache the data.
  • the receiving module 610 includes a receiving unit and a determining unit, where the receiving unit is configured to receive a release access bearer request message sent by the mobility management entity, where the release access bearer request message includes a stop indication.
  • the determining unit is configured to determine not to send the downlink data notification message according to the value of the status bit determined by the stop indication received by the receiving unit.
  • the device 600 is a serving gateway. And the above and other operations and/or functions of the various modules of the apparatus 600 are respectively omitted for the purpose of implementing the respective processes in the respective methods 200, 300, and 400 of FIGS. 2 through 4, and are not described herein.
  • the apparatus for data transmission in the circuit domain fallback can prevent the serving gateway from moving to the mobility during the terminal device fallback to the circuit switched network by sending a release access bearer request message including the stop indication to the serving gateway.
  • the management entity sends downlink data triggered by the packet switched service.
  • the notification message is sent, and the MME is unable to page the UE because the UE has left the LTE, so that the MME is overloaded, so that the load of the mobility management entity can be reduced and the system overhead can be reduced.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or software. The form of the unit is implemented.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, and the foregoing storage medium includes: a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM, Random Access Memory ), a variety of media that can store program code, such as a disk or a disc.

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

Abstract

L'invention porte sur un procédé et un dispositif de transmission de données en repli sur commutation de circuits. Le procédé consiste à : recevoir un message de requête de libération de ressource envoyé par une station de base ; déterminer, conformément au message de requête de libération de ressource, qu'une opération de suspension d'un service à commutation de paquets n'est pas effectuée ; et envoyer un message de requête de libération de support d'accès comprenant une instruction d'arrêt à une passerelle de desserte, l'instruction d'arrêt étant utilisée pour donner à la passerelle de desserte l'instruction de ne pas envoyer un message de notification de données de liaison descendante déclenché par le service à commutation de paquets. Le dispositif comprend : un module de réception, un module de détermination et un module d'envoi. Avec le procédé et le dispositif selon la présente invention, un message de requête de libération de support d'accès comprenant une instruction d'arrêt est envoyé à la passerelle de desserte, de manière à ce que la passerelle de desserte puisse être empêchée d'envoyer un message de notification de données de liaison descendante déclenché par un service à commutation de paquets à une entité de gestion de mobilité lorsqu'un équipement terminal se replie sur un réseau à commutation de circuits, de manière à réduire la charge de l'entité de gestion de mobilité ainsi que le surdébit d'un système.
PCT/CN2012/075002 2011-05-05 2012-05-03 Procédé et dispositif de transmission de données en repli sur commutation de circuits WO2012149894A1 (fr)

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CN201110115164.5A CN102769932B (zh) 2011-05-05 2011-05-05 用于电路域回退中数据传输的方法和装置
CN201110115164.5 2011-05-05

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CN101790128A (zh) * 2009-01-23 2010-07-28 大唐移动通信设备有限公司 一种寻呼方法及系统
WO2010127478A1 (fr) * 2009-05-04 2010-11-11 华为技术有限公司 Procédé et équipement de commutation
CN102045805A (zh) * 2009-10-16 2011-05-04 中兴通讯股份有限公司 演进分组交换系统电路交换回落业务的实现方法和系统

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CN104144391A (zh) * 2013-05-07 2014-11-12 中兴通讯股份有限公司 Lte网络下实现ussd业务的方法及装置

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