WO2014161293A1 - Procédé et système d'envoi de petites données, et équipement utilisateur - Google Patents

Procédé et système d'envoi de petites données, et équipement utilisateur Download PDF

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Publication number
WO2014161293A1
WO2014161293A1 PCT/CN2013/085615 CN2013085615W WO2014161293A1 WO 2014161293 A1 WO2014161293 A1 WO 2014161293A1 CN 2013085615 W CN2013085615 W CN 2013085615W WO 2014161293 A1 WO2014161293 A1 WO 2014161293A1
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Prior art keywords
data
small data
sent
small
negotiation
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PCT/CN2013/085615
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English (en)
Chinese (zh)
Inventor
许辉
吴传喜
王亚英
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中兴通讯股份有限公司
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Publication of WO2014161293A1 publication Critical patent/WO2014161293A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Definitions

  • the present invention relates to data transmission technologies in the field of mobile communications, and in particular, to a method, system, and user equipment (UE, User Equipment) for transmitting small data.
  • UE User Equipment
  • MTC Machine Type Communication
  • H2H Human to Human
  • MTC Machine to Machine and Machine
  • QoS quality of service
  • business model etc. are all very different from H2H communication mode.
  • the MTC user equipment triggers the mobile originating (MO, Mobile Originated) and mobile called (MT, Mobile Terminating) services.
  • a large number of services appear in the form of small data, such as the status information of the MTC user equipment. , periodic status updates, heartbeat messages, timely messages (IM), and more.
  • small data information has a small amount of data, such as generally less than 1 Kbyte, sometimes needs to be sent frequently, and sometimes needs to be sent to a large number of user devices at the same time. For most user equipments that need to send small data, the user equipment needs to complete the transition from idle state to connected state, so the generated control signaling is relatively more impressive.
  • an object of the present invention is to provide a method, system and application for transmitting small data.
  • the user equipment (UE) can determine the transmission mode of the small data service at the node, and meet the requirement of the small data service in the 3GPP network.
  • An embodiment of the present invention provides a method for sending small data, where the method includes:
  • the UE When the UE sends the uplink data to the network side, if the UE determines that the currently transmitted data is small data according to the small data criterion, the small data is sent to the network side according to the path determined by the network side negotiation.
  • the small data criterion is: indicating that the currently sent data is small data; and/or, the packet length of the current data to be sent is less than a preset threshold;
  • the number of packets of data currently to be sent is less than a preset threshold
  • the current data to be sent conforms to the specified small data format
  • the sending the small data to the network side according to the path determined by the network side negotiation includes:
  • the transmission path is determined by the network side device, and the small data is sent through the control plane or the user plane, and the small data is sent through the control plane.
  • the UE sends the small data to the mobility management entity (MME) through the evolved Node B (eNB), and the MME sends the small data according to the path determined by the negotiation;
  • MME mobility management entity
  • eNB evolved Node B
  • the UE sends the small data to the serving gateway (SGW, Serving Gateway) through the eNB, and the SGW sends the small data according to the path determined by the negotiation.
  • SGW Serving Gateway
  • the embodiment of the present invention provides a method for transmitting small data, where the method includes: when the network side sends downlink data to the UE, adopts a control plane sending mode, and the SGW or the MTC interconnection function entity (MTC-IWF, MTC InterWorking Function) ) based on small data
  • MTC-IWF MTC InterWorking Function
  • the data plane is sent, and the SGW determines that the data is small data according to the small data criterion, and sends the small data to the UE according to the path determined by negotiation.
  • the method before the network side adopts the control plane sending mode, or before the network side adopts the data plane sending mode, the method further includes: the data sending manner negotiated by the network side and the UE is the control plane sending mode, Or the data plane transmission method, and determine the transmission path of the small data.
  • sending the small data to the UE by using a small data service processing manner including: when sending data by using the MTC-IWF, The MTC-IWF determines whether the data is small data according to the small data criterion, and if yes, sends the small data to the UE according to the path determined by the negotiation; otherwise, processing the data according to a normal manner;
  • the SGW determines whether the data is small data according to the small data criterion. If yes, the small data is sent to the UE according to the path determined by the negotiation. Otherwise, the data is processed in a normal manner.
  • the embodiment of the present invention further provides a UE, where the UE includes: a transceiver module, a processing and negotiation module, and a determining module;
  • the determining module configured to send the uplink data, according to the small data criterion, determines that the currently sent data is ' ⁇ , data, and sends the small data to the transceiver module;
  • the processing and negotiation module is configured to send the negotiated path information to the processing module, and the transceiver module is configured to send the small data according to the path information sent by the processing and negotiation module.
  • the determining module is configured to save a small data criterion;
  • the small data criterion includes: indicating that the currently sent data is small data; and/or, the packet length of the current data to be sent is less than a preset threshold;
  • the number of packets of data currently to be sent is less than a preset threshold
  • the current data to be sent conforms to the specified small data format
  • the processing and negotiation module is configured to determine to send small data through the control plane or the user plane according to access, and/or mobility management, and/or session management procedure, and negotiate to obtain a transmission path.
  • the embodiment of the invention further provides a system for transmitting small data, the system comprising:
  • the SGW is configured to: when the received downlink data is determined to be small data according to the small data criterion, send the small data according to the determined path;
  • the MTC-IWF is configured to, when determining that the received downlink data is small data according to the small data criterion, send the small data according to the determined path obtained through negotiation.
  • the system further includes: an eNB and an MME;
  • the eNB When the eNB is configured to send the uplink data, when the received small data is sent by the control plane, the small data is sent to the MME; when the small data is sent by the user plane, the small data is sent to the SGW;
  • the MME is configured to: after receiving the small data sent by the eNB, send the small data according to the path determined by the negotiation;
  • the SGW is configured to send the small data sent by the eNB according to the path determined by the negotiation.
  • the MTC-IWF is configured to determine, according to the small data criterion, whether the received downlink data is small data, and if yes, send the small data according to the path determined by the negotiation, otherwise, process the device according to the normal manner.
  • the SGW is specifically configured to determine, according to the small data criterion, whether the received downlink data is small. Data, if yes, transmitting the small data according to the path determined by the negotiation, otherwise processing the data in a normal manner.
  • the method, the system, and the UE for transmitting the small data provided by the embodiment of the present invention, when the UE sends the uplink data, and determines that the currently sent data is small data according to the small data criterion, and sends the data to the network side according to the path determined by the network side.
  • the small data when the network side sends the downlink data to the UE, and uses the control plane transmission mode, if the SGW or the MTC-IWF determines that the data is small data according to the data rule, the method sends the When the network side sends the downlink data to the UE, when the data plane is sent in the data plane, if the SGW determines that the data is small data according to the small data criterion, the small data is sent to the UE according to the route obtained through negotiation. Thus, it is determined in the uplink and downlink directions which node device is used for the decision of the small data, and the route for the small data transmission is determined.
  • FIG. 1 is an operation flow of an uplink data side in a method for transmitting small data according to an embodiment of the present invention
  • FIG. 2 is an operation flow of a downlink data side in a method for transmitting small data according to an embodiment of the present invention
  • Schematic diagram of the composition of the UE
  • FIG. 4 is a schematic structural diagram of a system for transmitting small data according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic structural diagram of Embodiment 4 of the present invention.
  • FIG. 6 is a schematic flow chart of a method according to Embodiment 4 of the present invention.
  • Embodiment 5 of the present invention is a schematic structural diagram of Embodiment 5 of the present invention.
  • Embodiment 6 of the present invention is a schematic structural diagram of Embodiment 6 of the present invention.
  • FIG. 10 is a schematic flowchart of a method according to Embodiment 6 of the present invention. detailed description
  • the basic idea of the embodiment of the present invention is: when the UE sends uplink data to the network side, if The UE determines, according to the small data criterion, that the currently sent data is small data, and sends the small data to the network side according to the path determined by negotiation with the network side;
  • the control plane sends the mode, and the SGW or the MTC-IWF determines that the data is small data according to the small data criterion, and sends the small data to the UE according to the path determined by negotiation;
  • the data plane transmission mode is adopted, and when the SGW determines that the data is small data according to the small data criterion, the small data is sent to the UE according to the path determined by negotiation.
  • the operation flow of the uplink data side in the method for transmitting small data proposed by the embodiment of the present invention, as shown in FIG. 1, includes the following steps:
  • Step 101 When the user equipment UE sends the uplink data to the network side, the UE determines whether the currently sent data is small data according to the small data criterion, and if yes, performs step 102; otherwise, sends the data according to the normal manner, and ends the processing. Process.
  • the small data criterion is: directly indicating that the currently transmitted data is small data; and/or, the packet length of the current data to be sent is less than a preset threshold; and/or, the current data packet to be sent The number is less than a preset threshold; and/or, the current data to be transmitted conforms to the specified small data format; and/or, the current data to be transmitted and the last transmitted small data have the same service characteristics.
  • the service features include, but are not limited to, a data packet length, a number of packets, a packet arrival interval, and the like.
  • Step 102 Send the small data to the network side according to the determined path obtained by negotiating with the network side.
  • the transmission path is determined by negotiating with the network side device, and the UE determines to use the control plane or the user plane to send the location.
  • the small data if the control plane is used, the UE sends the small data to the MME through the eNB, and the MME sends the small data according to the path determined by the negotiation; if the user plane is used, the UE sends the small data.
  • the GW sends the SGW to the SGW, and the SGW sends the small data according to the path determined by the negotiation.
  • the determining is: the UE determines one or more network side negotiation devices according to the current process, and determines the current small size according to the small data transmission mode preset in the one or more network side negotiation devices. Data is sent using the control plane or user plane.
  • the small data transmission manner includes: a control plane and a data plane;
  • the network side negotiation device is: an eNB, or an MME, or an SGW, or an MTC-IWF.
  • the access process includes at least one of the following: an attach, a service request;
  • the mobility management process includes at least one of the following: a handover, a location update;
  • the session management process includes at least one of the following: session establishment, session modification, and session Release and quality of service QoS negotiation.
  • the method further includes: the UE and the network side negotiating device add a selected small data sending manner by using a specified field in the signaling interaction information. And notifying the network side to negotiate the small data transmission mode determined by the device; and the UE notifying the network side to negotiate the transmission path of the small data.
  • the UE sends the small data to the MME by using the eNB, and the MME sends the small data according to the path determined by the negotiation: the UE sends the small data to the MME, and the MME is determined according to a predetermined
  • the sending path of the small data sends the small data to an application server.
  • the UE sends the small data to the SGW through the eNB, and the SGW sends the small data according to the path determined by the negotiation: the UE sends the small data to the SGW, and the SGW passes the PGW (packet)
  • the data network gateway sends the small data to the application server.
  • the operation flow of the downlink data side in the method for sending small data provided by the embodiment of the present invention, as shown in FIG. 2, includes: Step 201: When the network side sends the downlink data to the UE, it is determined to adopt the control plane transmission mode or the data plane transmission mode. If the control plane transmission mode is adopted, step 202 is performed; otherwise, step 204 is performed.
  • the data sending manner negotiated between the network side and the UE is a control plane sending manner, or a data plane sending manner, and obtaining a sending route of the small data.
  • Step 202 Send the data to the SGW or the MTC-IWF.
  • the application server determines to send data through the MTC-IWF according to the control signaling, the application sends the data to the MTC-IWF, and sends the negotiated route;
  • the application server determines to send data through the SGW according to the control signaling, the application sends the data to the SGW, and sends the negotiated route.
  • Step 203 When the SGW or the MTC-IWF determines that the data is small data according to the small data criterion, the small data is sent to the UE according to the path determined by negotiation, and the processing flow is ended.
  • the MTC-IWF determines, according to the small data criterion, whether the data is small data, and if yes, sends the small data to the UE according to the route obtained through the negotiation; otherwise, processes the data according to a normal manner;
  • Step 204 Send the data to the SGW.
  • Step 205 The SGW sends the small data to the UE according to the path determined by negotiation when determining that the data is small data according to the small data criterion.
  • Embodiment 2
  • the UE provided by the embodiment of the present invention, as shown in FIG. 3, the UE includes: a transceiver module, a processing and negotiation module, and a determining module;
  • the judging module configured to send the uplink data, determines the currently sent according to the small data criterion When the data is ' ⁇ , data, the small data is sent to the transceiver module;
  • the processing and negotiation module is configured to send the negotiated path information to the processing module, and the transceiver module is configured to send the small data according to the path information sent by the processing and negotiation module.
  • the determining module is configured to determine, according to a preset small data criterion, whether the data to be sent is small data.
  • the small data criterion includes: indicating that the currently sent data is small data; and/or, the packet length of the current data to be sent is less than a preset threshold; and/or, the current number of packets to be sent is smaller than the pre- a threshold value; and/or, the current data to be transmitted conforms to the specified small data format; and/or, the current data to be transmitted and the last transmitted small data have the same service characteristics.
  • the processing and negotiation module is configured to determine to send small data through the control plane or the user plane according to access, and/or mobility management, and/or the session management process, and negotiate to obtain a transmission path.
  • the UE may be an MTC user equipment or a smart phone.
  • the transceiver module can be implemented by an antenna, a CPU, or an antenna and a DSP.
  • the processing and negotiation module and the determining module can be implemented by hardware such as a CPU or a DSP.
  • a system for transmitting small data includes: an SGW, configured to: when determining that the received downlink data is small data according to the small data criterion, according to the path determined by the negotiation, the sending station Small data;
  • the MTC-IWF is configured to, when determining that the received downlink data is small data according to the small data criterion, send the small data according to the determined path obtained through negotiation.
  • the system further includes: an eNB and an MME; wherein
  • the eNB When the eNB is configured to send the uplink data, when the received small data is sent by the control plane, the small data is sent to the MME; when the small data is sent by the user plane, the decimal is According to the SGW;
  • the MME is configured to: after receiving the small data sent by the eNB, send the small data according to the path determined by the negotiation;
  • the SGW is configured to send the small data sent by the eNB according to the path determined by the negotiation.
  • the SGW is configured to determine, according to the data criterion, whether the received downlink data is 'j, data, and if yes, send the small data according to the path determined by the negotiation, otherwise, process the data according to a normal manner. ;
  • the SGW is configured to determine, according to the small data criterion, whether the received downlink data is a small data, and if yes, send the small data according to the path determined by the negotiation; otherwise, the data is processed in a normal manner.
  • the method mainly includes:
  • Step 601 When receiving the application layer data, the UE determines whether the application layer data is small data according to a predetermined criterion. If yes, go to step 603; otherwise, the UE sends the data in a normal manner.
  • Step 602 The UE negotiates with the network side to select a manner for sending the small data service.
  • the network side includes one or more of the following devices: an eNB, an MME, an SGW, and an MTC-IWF.
  • the negotiation is: through an existing process, such as RRC connection establishment, attachment, location update, activation, and the like.
  • the manner of transmitting the small data includes: a manner in which the user plane transmits small data, and a manner in which the control plane sends the small data.
  • the manner in which the control plane sends small data includes: a Tsp/T5 process.
  • the determining is: selecting one or more of the small data transmission modes supported by the UE and the network side, and determining the selected small data transmission by adding the specific parameter field in the signaling interaction process. the way.
  • the normal mode refers to the manner in which the data is transmitted through the user plane bearer, that is, the UE and the SGW/PGW establish a user plane bearer. Connected to the PDN to send data to the target device through the PDN connection.
  • the predetermined criterion includes at least one of the following: an indication of an application layer, a packet size, a number of packets, a local policy, a small data bearer activation, and a last small data transmission.
  • Step 603 The UE sends the small data to the eNB according to the selected manner of sending the small data service.
  • the UE carries a small data indication -small data indicator in the transmission information, and the eNB selects a transmission path according to the foregoing indication and other indication information.
  • Step 604 The eNB determines whether to send small data through the control plane, and if yes, go to step 605; otherwise, go to step 606.
  • the UE indicates a transmission path in the transmission information: a control plane or a user plane; the specific indication information may be explicit or implicit, according to a prior agreement between the UE and the network side.
  • Step 605 The eNB sends small data to the target device through the MME, and ends the processing flow.
  • the MME is an MME that provides a service to the UE; the eNB sends control signaling carrying d and data through the S1-MME interface, and the control signaling may be existing signaling or newly added dedicated signaling.
  • the MME may send small data to the target device in two ways: the MME sends small data to the MTC-IWF through the T5 interface, and the MTC-IWF sends small data to the target device through the Tsp interface; the MME sends the data to the target device through the SGW/PGW. Small data.
  • the MME selects one of the small data transmission methods.
  • the target device is generally an application server.
  • Step 606 The eNB sends small data to the target device through the SGW.
  • the eNB sends small data to the SGW through the S1-U interface;
  • the SGW is an SGW that provides a service to the UE, and the SGW sends small data to the target device through the PGW.
  • Embodiment 5
  • the embodiment of the present invention is directed to a scenario in which a small data is sent through a control plane, and a system block diagram is shown in FIG. 7.
  • the flowchart is as shown in FIG. 8.
  • the method mainly includes:
  • Step 801 The UE negotiates with the network side to select a manner for transmitting the small data service.
  • This step is the same as step 602, and is not described here.
  • Step 802 The application server determines whether to send data through the MTC-IWF, and if yes, proceeds to step 803; otherwise, proceeds to step 807.
  • the application server selects whether to send data through the MTC-IWF according to a prior agreement, a local policy, a network configuration, and the like.
  • Step 803 The application server sends data to the MTC-IWF.
  • the application server sends data to the MTC-IWF through the Tsp interface; the data encapsulation is sent in signaling.
  • Step 804 The MTC-IWF determines whether the data sent by the application server is small data. If yes, the process goes to step 805. Otherwise, the process goes to step 806.
  • the MTC-IWF determines whether it is small data according to a predetermined criterion, and the predetermined criterion includes at least one of the following: an indication of a server, a packet size, a number of packets, a local policy, a small data bearer activation, and a last small data. send.
  • Step 805 The MTC-IWF sends small data to the target user equipment according to the manner of sending the small data service, and ends the processing flow.
  • the MTC-IWF sends small data in two ways: One is that the MTC-IWF sends small data to the MME through the T5 interface, and the MME uses NAS signaling to send small data to the target UE; the other is that the MTC-IWF passes the T4 interface.
  • the MTC-IWF determines that the received data is not small data, the MTC-IWF may continue to send the received data as signaling to the target UE, or the MTC-IWF sends a response to the application server: indicating the received The data is abnormal and the data is discarded; the specific measures taken by the MTC-IWF are determined according to the prior agreement, the local policy, and the indication of the application server.
  • Step 807 The application server sends data to the gateway PGW/SGW.
  • the application server sends data to the gateway PGW through the SGi interface, and the PGW sends data to the SGW; the SGW is the serving SGW of the target UE.
  • Step 808 The SGW determines whether it is small data. If yes, then go to step 809; if no, go to step 811.
  • the SGW determines whether it is small data according to a predetermined criterion, and the predetermined criteria include at least one of the following: an indication of the application server, a packet size, a number of packets, a local policy, a small data bearer activation, and a last small data transmission.
  • Step 809 The SGW sends small data to the MME according to the manner determined by negotiation.
  • the SGW sends the small data to the MME according to the method determined in step 801, where the MME is the serving MME of the target UE; the SGW carries the small data indication in the information sent to the MME, and the MME indicates according to the small data. It is determined that the transmission path is preferably.
  • Step 810 The MME sends small data to the target UE through the eNB.
  • the information sent by the MME to the eNB carries a small data indication; if the target UE is in an idle state, the MME sends a paging message, and the target UE that receives the paging message sends a response message;
  • the NAS signaling encapsulates the small data, and the eNB carries a small data indication in the information sent to the target UE, and the target UE performs processing according to the data indication.
  • Step 811 The SGW sends data to the target UE through the eNB according to a normal process.
  • the SGW determines that the data is normal data, and sends data to the eNB through an S1-U interface, where the eNB sends data to the target UE by using an air interface data radio bearer.
  • the embodiment of the present invention is directed to a scenario in which the small data information is sent through the user plane in the downlink.
  • the system block diagram is shown in FIG. 9.
  • the flowchart is as shown in FIG. 10, and the method mainly includes:
  • Step 1001 The UE and the network side negotiate to determine a small data service sending manner.
  • This step is the same as step 602, and is not described here.
  • Step 1002 The application server AS sends data to the gateway PGW/SGW.
  • the AS sends data to the PGW through an SGi interface, where the PGW sends data to the SGW; the SGW is a serving SGW where the target UE is located.
  • Step 1003 The SGW determines whether it is small data. If yes, go to step 1004. Otherwise, go to step 1009.
  • the SGW determines whether it is small data according to a predetermined criterion, and the predetermined criteria include at least one of the following: an indication of the application server, a packet size, a number of packets, a local policy, a small data bearer activation, and a last small data transmission. If it is determined to be small data, the small data transmission mode is adopted, otherwise the normal data processing mode is adopted.
  • Step 1004 The SGW queries whether the target UE is in an idle state. If yes, the process moves to step 1005. Otherwise, the process proceeds to step 1008.
  • the SGW When the SGW queries that the target UE is in an idle state, the paging process is initiated, otherwise the SGW sends small data to the target UE through the eNB.
  • Step 1005 The SGW sends a downlink small data notification message to the MME.
  • the SGW sends a downlink small data notification message to the MME through the S11 interface.
  • Step 1006 The MME pages the target UE.
  • the MME sends a paging message through the eNB in the service area, where the paging type is small data.
  • Step 1007 The target UE sends a paging response message.
  • Step 1008 The SGW sends small data to the target UE by using the eNB.
  • the SGW sends small data to the target UE by using the eNB, and carries a small data indication in the small data information; the target UE processes the small data according to the small data indication.
  • Step 1009 The SGW sends data to the target UE according to a normal process.
  • the SGW determines that the received data is not small data, and then processes according to a normal process: that is, the eNB sends data to the target UE.

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Abstract

L'invention concerne un procédé d'envoi de petites données, consistant à : lorsqu'un équipement utilisateur (UE) envoie des données de liaison montante à un côté réseau, si l'UE détermine, selon un critère de petites données, que les données envoyées actuellement sont des petites données, envoyer les petites données au côté réseau selon un chemin déterminé par négociation avec le côté réseau. L'invention concerne en outre un système d'envoi de petites données et un UE. Par utilisation de la présente invention, une manière d'envoi de service de petites données peut être déterminée au niveau d'un nœud, permettant ainsi de satisfaire une demande pour déterminer d'utiliser un service de petites données dans un réseau de projet de partenariat de troisième génération (3GPP).
PCT/CN2013/085615 2013-07-23 2013-10-21 Procédé et système d'envoi de petites données, et équipement utilisateur WO2014161293A1 (fr)

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CN201310312292.8A CN104349388A (zh) 2013-07-23 2013-07-23 一种发送小数据的方法、系统及用户设备
CN201310312292.8 2013-07-23

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CN105704753B (zh) * 2014-11-26 2018-09-07 电信科学技术研究院 一种进行数据传输的方法、系统和设备
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