WO2017133282A1 - Procédé et appareil de prise en charge de transmission de données de dispositifs de communication de type machine - Google Patents

Procédé et appareil de prise en charge de transmission de données de dispositifs de communication de type machine Download PDF

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Publication number
WO2017133282A1
WO2017133282A1 PCT/CN2016/104237 CN2016104237W WO2017133282A1 WO 2017133282 A1 WO2017133282 A1 WO 2017133282A1 CN 2016104237 W CN2016104237 W CN 2016104237W WO 2017133282 A1 WO2017133282 A1 WO 2017133282A1
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WO
WIPO (PCT)
Prior art keywords
data transmission
transmission mode
switching
mtc
message
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PCT/CN2016/104237
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English (en)
Chinese (zh)
Inventor
黄梅青
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中兴通讯股份有限公司
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Publication of WO2017133282A1 publication Critical patent/WO2017133282A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • This document relates to, but is not limited to, the field of communications, and in particular to a method and apparatus for supporting data transmission of a machine type communication device.
  • MTC Machine Type Communication
  • MTC devices The services supported by MTC devices are diverse. The requirements for most MTC devices are usually low cost and low power consumption, such as a large number of sensors for environmental monitoring or agriculture.
  • the services supported by MTC devices are generally low-rate, but there may be situations where big data needs to be transmitted. Services supported by MTC devices generally have low latency requirements, but there may be situations where emergency events require fast transmission.
  • the keepalive information is periodically reported, and the keep-alive information is used by the server to determine whether and when the device fails, the delay requirement is not high, and the data volume is as small as several tens of bytes (BYTE) or lower;
  • the fire alarm reports the information, the delay requirement is relatively high, the data volume may be as small as several tens of bytes, and the video information may need to be reported, and the amount of data is relatively large to several megabytes (M);
  • the delay requirement is relatively high, and the amount of data is as small as several tens of BYTE or lower;
  • the software version is updated, the delay requirement is relatively low, the amount of data is relatively large, and there may be several M.
  • the MTC device supports a variety of services, including periodic service reporting, abnormal event reporting, network command delivery, and software version update.
  • the quality of service (QoS) required by different services for different networks is also different.
  • MTC devices may transmit high-speed data, such as in portable applications, smart glasses may need to transmit real-time video data.
  • Smart watches may require a phone call, and this business requires a high Qos guarantee.
  • the number of MTC devices may be massive, and a large number of device accesses may bring a large amount of signaling overhead to the network.
  • the 3GPP standard currently introduces two small data transmission methods for optimization:
  • Control plane optimization mode The data packet is packaged into a network attached storage packet data unit (NAS PDU) attached to the control plane signaling for transmission.
  • NAS PDU network attached storage packet data unit
  • DRB Data Resource Bearer
  • control plane optimization method has the following disadvantages:
  • the security performance is slightly worse: no DRB is established in the control plane optimization scheme.
  • the network side and the terminal have no AS security context, and the data cannot be AS layer encrypted.
  • Low-priority data service occupies too high scheduling resources: Generally, the periodic reporting data sent by the MTC terminal has a lower priority, but because the data is attached to the air interface layer 3 signaling, the obtained data is obtained. Scheduling priority processing similar to conventional Radio Resource Control (RRC) signaling, which will crowd out the scheduling priorities of those real RRC access signaling (without MTC data transmission), which may result in higher air interface access. failure.
  • RRC Radio Resource Control
  • the signal bearer (SRB) is adjusted between the terminal and the base station.
  • the priority is always higher than the DRB. Therefore, these low-priority data can always obtain higher scheduling priority than the DRB, which may result in high priority service scheduling using DRB transmission.
  • the signaling optimization effect has no control plane optimization effect: the control plane optimization mode saves more signaling; and the user plane optimization scheme needs to restore the bearer context information first, and then transmit the data. Relatively speaking, the signaling optimization effect is smaller.
  • bearer context maintenance overhead is relatively large, there is a risk of misalignment: the terminal and the network side always maintain the terminal MTC service bearer context, there is a certain system overhead, including memory overhead, Central Processing Unit (CPU) Overhead.
  • context misalignment may occur during prolonged use. Because MTC devices are generally used for a long time, for years or even ten years, and the network side is constantly changing, it is likely to pose a risk of inconsistency with the terminal context. Changes in device access to the cell introduce additional overhead for context migration. Because the assignment of the service bearer context is related to the site, when the site or cell accessed by the device changes, the network side needs to transfer or modify the context between the sites.
  • the Third Generation Partnership Projects (3GPP) network currently provides a method for the MTC terminal to negotiate a data transmission mode with the network side through an Attach process, which cannot meet the various MTC service transmission scenarios in the device.
  • Different Qos requirements may have a negative impact on the network, such as excessive network side overhead.
  • Embodiments of the present invention provide a method and apparatus for supporting data transmission of a machine type communication device, and satisfy flexible data transmission of QoS and network performance of different services of the MTC.
  • a method for supporting data transmission of a machine type communication device, which is applied to an MTC terminal including:
  • the network side device is notified by the uplink message to perform data transmission mode switching.
  • determining that the data transmission mode needs to be switched includes:
  • the data transmission mode needs to be switched according to the state information of the current communication service of the machine type communication MTC and the processing capability of the MTC terminal.
  • the method further includes:
  • the context information of the data transmission mode is updated according to the switched data transmission mode.
  • the status information of the current transmission service includes at least one of the following:
  • the uplink message includes at least one of the following:
  • the uplink network attached storage NAS message or the uplink air interface RRC message includes a handover indication.
  • the handover indication includes: switching a data transmission mode indication cell or a data transmission destination mode cell.
  • the embodiment of the invention further provides a method for supporting data transmission of a machine type communication device, which is applied to a network side device, and includes:
  • performing data transmission mode switching according to the switching indication of the uplink message includes:
  • the method further includes: sending handover response information to the MTC terminal.
  • the network side device comprises a base station and/or a mobility management entity MME.
  • the embodiment of the present invention further provides an apparatus for supporting data transmission of a machine type communication device, which is disposed on the MTC terminal, and includes:
  • the first switching module is configured to determine that the data transmission mode needs to be switched
  • the first communication module is configured to notify the network side device to perform data transmission mode switching by using an uplink message.
  • the determining, by the first switching module, that the data transmission mode needs to be switched includes:
  • the data transmission mode needs to be switched according to the state information of the current communication service of the machine type communication MTC and the processing capability of the MTC terminal.
  • the first communications module is further configured to receive the handover response information sent by the network side device;
  • the first switching module is further configured to clear context information of the saved data transmission mode of the current service; and update context information of the data transmission mode according to the switched data transmission mode.
  • the embodiment of the invention further provides an apparatus for supporting data transmission of a machine type communication device, which is disposed on the network side device, and includes:
  • a second communication module configured to receive an uplink message sent by the MTC terminal
  • the second switching module is configured to perform data transmission mode switching according to the switching instruction of the uplink message.
  • the second switching module is further configured to: clear context information of the saved data transmission mode of the current service; and update context information of the data transmission mode according to the switching indication of the uplink message.
  • the second communication module is further configured to send handover response information to the MTC terminal.
  • the solution provided by the embodiment of the present invention provides a flexible data transmission mode switching method that satisfies the QoS and network performance of different services of the MTC, and implements flexible switching between the control plane data transmission mode and the user plane data transmission mode, and can select different data for different MTC services.
  • Send mode able to meet Different QoS requirements of various MTC service transmission scenarios in the device improve the Qos guarantee of the MTC service, including the requirements of the service for the delay, the security requirements of the service, and the requirements of the service rate.
  • FIG. 1 is a flow chart of a method for supporting data transmission of a machine type communication device according to an embodiment of the present invention
  • FIG. 2 is a flow chart of another method for supporting data transmission of a machine type communication device according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an apparatus for supporting data transmission of a machine type communication device according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of another apparatus for supporting data transmission of a machine type communication device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a terminal indicating a network side data transmission mode switching by using an uplink NAS message
  • FIG. 6 is a schematic diagram of the terminal side indicating a network side data transmission mode switching by using an uplink air interface message.
  • an embodiment of the present invention provides a method for supporting data transmission of a device-type communication device, which is applied to an MTC terminal, and includes:
  • the network side device is notified by the uplink message to perform data transmission mode switching.
  • Determining the data transfer mode that needs to be switched includes:
  • the method further includes:
  • the network side device Receiving, by using an uplink message, the network side device to perform the data transmission mode switching, and receiving the handover response information sent by the network side device;
  • the context information of the data transmission mode is updated according to the switched data transmission mode.
  • Business data volume business service quality Qos requirements, terminal capabilities, terminal load, terminal power, etc. In other embodiments, it is not limited to the above state information, and may be other state information.
  • the uplink message includes at least one of the following:
  • the uplink network attached storage NAS message or the uplink air interface RRC message includes a handover indication.
  • the handover indication may be a field added by the uplink NAS message or the uplink air interface RRC message, or may be an existing field of the uplink NAS message or the uplink air interface RRC message.
  • the MTC UE instructs the network side device to switch between different data transmission modes according to the data volume size, the service QoS feature, and the terminal capability of the MTC service, including:
  • the terminal determines whether the current data transmission mode needs to be switched by using the traffic volume and the service QoS feature. If the handover is required, the network side device is notified by the uplink message to perform the data transmission mode switching.
  • Upstream NAS messages include but are not limited to the following messages:
  • the uplink RRC message includes but is not limited to the following messages:
  • the handover indication includes: switching a data transmission mode indication cell or a data transmission destination mode cell.
  • the method for indicating the switching data transmission mode is as follows but is not limited to the following:
  • the newly added handover indication may be a new UE handover data transmission mode indication cell, or adding a data transmission mode cell that is desired to be switched, or It is the reason indication of the switch.
  • an embodiment of the present invention provides a method for supporting data transmission of a device-type communication device, which is applied to a network side device, and includes:
  • Performing a data transmission mode switching according to the switching indication of the uplink message includes:
  • the method further includes: after updating the context information of the data transmission mode according to the handover indication of the uplink message, sending handover response information to the MTC terminal.
  • the network side device comprises a base station or/and a mobility management entity MME.
  • an embodiment of the present invention provides an apparatus for supporting data transmission of a device-type communication device, which is disposed on an MTC terminal, and includes:
  • the first switching module 301 is configured to determine that the data transmission mode needs to be switched
  • the first communication module 302 is configured to notify the network side device to perform data transmission mode switching by using an uplink message.
  • the first switching module 301 is configured to perform a handover by determining a data transmission mode by:
  • the data transmission mode needs to be switched according to the state information of the current communication service of the machine type communication MTC and the processing capability of the MTC terminal.
  • the first communication module 302 is further configured to receive the handover response information sent by the network side device;
  • the first switching module 301 is further configured to: clear context information of the saved data transmission mode of the current service; and update context information of the data transmission mode according to the switched data transmission mode.
  • an embodiment of the present invention provides a device for supporting data transmission of a device-type communication device, which is configured on a network side device, and includes:
  • the second communication module 401 is configured to receive an uplink message sent by the MTC terminal;
  • the second switching module 402 is configured to perform data transmission mode switching according to the switching instruction of the uplink message.
  • the second switching module 402 is further configured to: clear context information of the saved data transmission mode of the current service; and update context information of the data transmission mode according to the switching indication of the uplink message.
  • the second communication module 401 is further configured to send handover response information to the MTC terminal.
  • the terminal uses the uplink NAS message to indicate that the network side switches from the user plane mode to the control plane mode as follows:
  • Step 11 The terminal currently negotiates with the network to transmit data using the user plane optimization method.
  • Step 12 The terminal has periodic keep-alive information to be uploaded. Considering that the data of the keep-alive information is small and the delay requirement is low, and the interval of the transmission interval is relatively long, the terminal wants to switch to the control plane mode to save signaling.
  • Step 13 The terminal initiates an RRC Connection Resume message to the eNodeb to resume the connection.
  • the eNodeb After receiving the eNodeb, the eNodeb is notified to the Mobility Management Entity (MME) to restore the connection of the terminal S1.
  • MME Mobility Management Entity
  • the eNodeb sends an RRC Connection Resume Complete to the terminal.
  • Step 14 The terminal sends a Dettach Request Dettach Request message to the MME, and a new handover indication is added to the Dettach Request message.
  • Step 15 After receiving the handover indication brought by the Dettach Request message, the MME clears the context information of the user plane transmission mode saved by itself, and notifies the eNodeb to clear the information by using the downlink S1 message.
  • the MME sends a De Attach Response Response to the terminal.
  • Step 16 After receiving the Dettach Response, the terminal clears the context information of the user plane transmission mode saved by the terminal.
  • Step 17 The terminal re-initiates the Attach Request message, which is brought into the control plane Prefer indication.
  • Step 18 After receiving the MME, the MME switches to the control plane optimization mode and indicates to the terminal through the Attach Response.
  • the terminal device supports the following four services:
  • the fire alarm control room issues an order to the equipment: the delay requirement is ⁇ 10s, and the data volume is 0-20BYTE;
  • the terminal device uses the uplink air interface message to indicate that the network side switches from the user plane mode to the control plane mode as follows:
  • Step 21 The terminal device currently negotiates with the network to transmit data using the user plane optimization mode.
  • Step 22 The terminal has periodic keep-alive information to be uploaded. Considering that the data of the keep-alive information is small and the delay requirement is low, and the interval of the transmission interval is relatively long, the terminal wants to switch to the control plane mode to save signaling.
  • Step 23 The terminal initiates an RRCConnectionResume message to the eNodeb to resume the connection.
  • the MME After receiving the eNodeb, the MME is notified to resume the connection of the terminal S1.
  • the eNodeb sends an RRCConnectionResumeComplete to the UE.
  • Step 24 The terminal sends an uplink message to transmit the ULInformationTransfer message to the eNodeb, where a handover indication is added.
  • Step 25 After receiving the handover indication brought by the ULInformationTransfer message, the eNodeb clears the context information of the user plane transmission mode saved by itself, and notifies the MME to clear the information by using the UE context release request message.
  • the MME After the MME clears the context information of the user plane transmission mode saved by itself, the MME sends a context release response Context Release Response message to the eNodeb.
  • the eNodeb sends a downlink message to transmit the DLInformationTransfer message to the UE.
  • Step 26 After receiving the DLInformationTransfer, the UE clears the context information of the user plane transmission mode saved by the terminal.
  • Step 27 The terminal re-initiates the Attach Request message, which is brought into the control plane Prefer indication.
  • Step 28 After receiving the MME, switch to the control plane optimization mode, and pass the Attach The Response is indicated to the UE.
  • each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function.
  • the invention is not limited to any specific form of combination of hardware and software.
  • the foregoing technical solution provides a flexible data transmission mode switching method that satisfies the QoS and network performance of different services of the MTC, and implements flexible switching between the control plane data transmission mode and the user plane data transmission mode, and can select different data transmission modes for different MTC services. It can meet the different QoS requirements of various MTC service transmission scenarios in the device, and improve the QoS guarantee of the MTC service, including the service delay requirement, the service security requirement, and the service rate requirement.

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

Abstract

L'invention concerne un procédé et un appareil permettant de prendre en charge la transmission de données de dispositifs de communication de type machine (MTC), consistant à : déterminer qu'une commutation de mode de transmission de données est nécessaire ; et ordonner, par un message de liaison montante, à un dispositif côté réseau d'effectuer la commutation de mode de transmission de données. Une commutation de mode de transmission de données flexible pour différents services de MTC ayant différentes exigences en matière de qualité de service et de performance réseau peut être obtenue.
PCT/CN2016/104237 2016-02-04 2016-11-01 Procédé et appareil de prise en charge de transmission de données de dispositifs de communication de type machine WO2017133282A1 (fr)

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CN201610079673.XA CN107040331A (zh) 2016-02-04 2016-02-04 一种支持机器类通信设备数据传输的方法和装置
CN201610079673.X 2016-02-04

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CN107277842B (zh) * 2017-07-25 2019-08-16 中国联合网络通信集团有限公司 一种数据传输模式的选择方法、装置及网络系统

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WO2012154542A1 (fr) * 2011-05-06 2012-11-15 Interdigital Patent Holdings, Inc. Procédé et appareil pour utiliser le plan de contrôle afin de transmettre et de recevoir des données
CN103650623A (zh) * 2011-07-15 2014-03-19 高通股份有限公司 经由信令无线承载的短分组数据消息的传输

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CN102056112A (zh) * 2009-11-05 2011-05-11 华为技术有限公司 一种传输数据的方法、设备和系统
WO2012154542A1 (fr) * 2011-05-06 2012-11-15 Interdigital Patent Holdings, Inc. Procédé et appareil pour utiliser le plan de contrôle afin de transmettre et de recevoir des données
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