WO2013071792A1 - Procédé et système de communication de terminal mtc, et nœud de commande central - Google Patents

Procédé et système de communication de terminal mtc, et nœud de commande central Download PDF

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Publication number
WO2013071792A1
WO2013071792A1 PCT/CN2012/081848 CN2012081848W WO2013071792A1 WO 2013071792 A1 WO2013071792 A1 WO 2013071792A1 CN 2012081848 W CN2012081848 W CN 2012081848W WO 2013071792 A1 WO2013071792 A1 WO 2013071792A1
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WIPO (PCT)
Prior art keywords
mtc terminal
information
control node
signaling
central control
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PCT/CN2012/081848
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English (en)
Chinese (zh)
Inventor
杨宁
胡南
胡臻平
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中国移动通信集团公司
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Publication of WO2013071792A1 publication Critical patent/WO2013071792A1/fr

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    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of wireless communications, and in particular to a communication method, system and central control node for an MTC terminal.
  • MTC machine-type communication
  • machine-type communication refers to a communication method between a machine and a machine (device and device) without requiring human participation.
  • FIG. 1 and FIG. 2 there are several connection methods for the connection between MTC terminals, as shown in FIG. 1 and FIG. 2, wherein the manner shown in FIG. 1 is directly controlled by the macro base station or the operator by embedding the SIM/USIM card into the terminal.
  • Figure 2 is another way, in which the MTC terminals communicate with each other through WiFi/Bluetooth/Zigbee, etc., and finally connect to the network through a central access node.
  • the H2H (Human to human) service supported by the existing cellular network technology is generally divided into two parts: an access sublayer (AS) and a non-access stratum (NAS).
  • the non-access stratum NAS performs the corresponding process when the terminal performs registration, authentication, and service request.
  • the NAS process initiated by the MTC terminal is redundant in each MTC terminal registration, authentication, access, and service request, which not only increases the complexity of the MTC terminal, but also increases the cost of the MTC terminal. And it wastes a lot of resources of air interface, which leads to useless consumption of wireless resources in the environment where a large number of MTC terminals are deployed in the future.
  • the present invention is directed to the prior art in the case of MTC terminal registration, authentication, access, and service request, which is caused by the redundancy of the non-NAS process initiated by the MTC terminal and wastes a large amount of resources of the air interface.
  • the present invention provides a communication method, including: receiving MTC terminal information that is transmitted by an MTC terminal through non-access stratum signaling;
  • the MTC terminal information is information necessary for the MTC terminal to initiate non-access stratum signaling to the core network node.
  • the foregoing communication method further includes:
  • the non-access stratum signaling includes a GUTI identifier and an IP address allocated to the MTC terminal.
  • the above communication method further includes:
  • the temporary identifier is a MAC layer address of the MTC terminal or an RRC layer ID assigned to the MTC terminal;
  • a temporary unique identifier, a GUTI identifier, and an IP address of the MTC terminal are stored.
  • the MTC terminal information includes service indication type information.
  • the foregoing communication method further includes:
  • the identification information of the terminal is S-TMSI or IMSI or IMEI of the MTC terminal.
  • An embodiment of the present invention further provides a communication method, including:
  • the MTC terminal information is information necessary for the MTC terminal to initiate non-access stratum signaling to the core network node.
  • the access layer signaling includes a medium access control layer signaling or a radio resource control layer, where the MTC terminal information specifically includes: The IMSI or device of the SIM/USIM card of the MTC terminal, and the security key corresponding to the IMSI or device IMEI.
  • An embodiment of the present invention further provides a communication system of an MTC terminal, including:
  • An MTC terminal configured to report the MTC terminal information to the central control node
  • a central control node configured to form non-access stratum signaling corresponding to the MTC terminal information according to the MTC terminal information, and send the non-access stratum signaling to the core network node.
  • the MTC terminal information is information necessary for the MTC terminal to initiate non-access stratum signaling to the core network node.
  • the MTC terminal transmits the MTC terminal information to the central control node by using access layer signaling.
  • the MTC terminal information specifically includes:
  • the core network node is configured to verify the legality of the MTC terminal, and allocate the GUTI identifier and the IP address to the verified MTC terminal.
  • the central control node is further configured to perform one-to-one mapping between the GUTI identifier and the temporary unique identifier of the MTC terminal under the central control node.
  • the temporary unique identifier of the MTC terminal under the central control node is a MAC layer address of the MTC terminal or an RRC layer ID allocated by the central control node to the MTC terminal.
  • the MTC terminal information includes service indication type information.
  • the central control node is configured to form a corresponding non-access stratum signaling according to the MTC terminal information, and send the non-access stratum signaling to the core network node;
  • the core network node is configured to process the service request of the MTC terminal according to the service indication type information.
  • the core network node is further configured to: send the message sent to the MTC terminal to the central control node, where the message includes the identification information of the terminal,
  • the central control node is configured to determine a timing of calling the MTC terminal according to the terminal identification information, and transmit a corresponding message to the MTC terminal.
  • the identification information of the terminal is an S-TMSI or an IMSI or an IMEI of the MTC terminal.
  • An embodiment of the present invention further provides a central control node, including:
  • the signaling receiving module is configured to receive an MTC terminal that is transmitted by the MTC terminal through non-access stratum signaling.
  • a signaling conversion module configured to generate access layer signaling corresponding to the MTC terminal information according to the MTC terminal information
  • a signaling sending module configured to send, to the core network node, non-access layer signaling corresponding to the MTC terminal information.
  • the MTC terminal information is information necessary for the MTC terminal to initiate non-access stratum signaling to the core network node.
  • the signaling receiving module is further configured to receive non-access stratum signaling returned by the core network node, where the non-access stratum signaling includes a GUTI identifier and an IP address allocated to the MTC terminal.
  • the method further includes: a temporary identifier allocation module, an address mapping module, and an address library module, wherein
  • the identifier allocation module is configured to allocate a temporary unique identifier to the MTC terminal, where the temporary identifier is a MAC layer address of the MTC terminal or an RRC layer ID allocated to the MTC terminal;
  • the address mapping module is configured to obtain a GUTI identifier and an IP address of the MTC terminal, and map the GUTI identifier and the IP address of the MTC terminal according to the temporary unique identifier; the address library module is configured to receive and A temporary unique identifier, a GUTI identifier, and an IP address of the MTC terminal are stored.
  • An embodiment of the present invention further provides an MTC terminal, including:
  • An information generating unit configured to generate MTC terminal information
  • an information sending unit configured to transmit the MTC terminal information to the central control node according to the access layer signaling.
  • the MTC terminal information is information necessary for the MTC terminal to initiate non-access stratum signaling to the core network node.
  • the MTC terminal of the present invention interacts with the central control node through the access layer signaling, and does not need to interact with the core network node, thereby reducing the access layer signaling protocol of the MTC terminal and reducing the complexity of the MTC terminal. Degree, and reduce the energy consumption of the MTC terminal.
  • FIG. 1 is a schematic diagram of a communication system of an MTC terminal in the prior art
  • FIG. 2 is a schematic diagram of a communication system of another MTC terminal in the prior art
  • FIG. 3 is a schematic structural diagram of a communication system of an MTC terminal according to the present invention.
  • FIG. 4 is a schematic diagram of an MTC terminal and a central control node in a communication system of an MTC terminal of the present invention
  • FIG. 5 is a schematic flow chart of a communication method of an MTC terminal according to the present invention.
  • FIG. 6 is a schematic flow chart of an embodiment of a communication method of an MTC terminal according to the present invention.
  • FIG. 7 is a schematic flow chart of an embodiment of a communication method of an MTC terminal according to the present invention.
  • FIG. 8 is a flow chart showing an embodiment of a communication method of an MTC terminal according to the present invention.
  • FIG. 5 is a schematic flowchart of a communication method of an MTC terminal according to the present invention.
  • the communication method of the MTC terminal includes the following steps:
  • the MTC terminal reports the MTC terminal information to the central control node.
  • the MTC terminal information is information necessary for the MTC terminal to send non-access stratum signaling to the core network node;
  • the central control node obtains the MTC terminal information, and obtains MTC terminal information necessary for generating non-access stratum (NAS layer) signaling from the MTC terminal information; where, in S102, The MTC terminal information herein represents a message necessary to generate the non-access stratum signaling;
  • the MTC terminal information needs to include some necessary information for the MTC terminal to authenticate with the core network node, for example, The IMSI or device IMEI in the SIM/USIM of the MTC terminal, and the information specific to the MTC terminal of the security password.
  • the MTC terminal information may include necessary information that the MTC terminal uses to inform the core network of the service, for example, a service type indication of the service.
  • the central control node forms various non-access stratum (NAS layer) signaling initiated by the core network node according to the MTC terminal information, and initiates, by using the non-access stratum signaling, a corresponding to the MTC terminal.
  • NAS layer non-access stratum
  • step S104 The central control node interacts with the core network node by using the non-access stratum signaling.
  • the non-access stratum signaling is generated by the central control node according to the MTC terminal information, and therefore, for the core network node, all non-accesses forwarded from the central control node Layer signaling is considered to be from the MTC terminal.
  • the MTC terminal transmits the MTC terminal information to the central control node through access layer (AS) signaling.
  • AS access layer
  • the transmission may be performed by using medium access control layer signaling (MAC layer signaling), where the MAC layer signaling includes random access signaling;
  • MAC layer signaling medium access control layer signaling
  • the MAC layer signaling includes random access signaling
  • RRC layer signaling RRC layer signaling
  • the RRC layer signaling includes related instructions such as connection establishment.
  • the MTC terminal and the central control node only need to perform message transmission by using access layer signaling, and the central control node replaces the MTC terminal for subsequent non-access stratum signaling with the core network. And the process, thereby reducing the requirements on the MTC terminal, thereby reducing the cost of the MTC terminal, and also avoiding the useless consumption of the wireless resource in an environment where a large number of MTC terminals are deployed.
  • the access layer signaling is transmitted between the MTC terminal and the central control node by using a connection mode of the 3GPP, for example, the LTE mode; the non-access stratum signaling is wireless or wired.
  • the way is to transfer between the central control node and the core network node.
  • the MTC terminal and the central control node can be transmitted in a small bandwidth manner, thereby greatly reducing the cost and power consumption of the MTC terminal; in addition, since the central control node and the core network node can be connected by wireless/wired connection , which further reduces the MTC end of the prior art The congestion caused by NAS signaling between the end and the core network node.
  • the communication method of the MTC terminal of the present invention will be further described below in conjunction with various scenarios of the interaction between the MTC terminal and the core network shown in Figs.
  • the MTC terminal requests network registration from the core network node, wherein the MTC terminal is quasi-stationary, and the IMSI or the device IMEI in the SIM/USIM is used for authentication and authentication.
  • the communication method of the MTC terminal further includes the following steps:
  • the MTC terminal starts to request a network registration request from the core network node.
  • the MTC terminal transmits, to the central control node, the MTC terminal access request information of the non-access stratum instruction used to initiate the network registration request to the core network node.
  • the MTC terminal access request information needs to include the following necessary information:
  • the IMSI or IMEI of the SIM/USIM card of the MTC terminal and the security key corresponding to IMSI or IMEI.
  • the central control node acquires the IMSI sent by the MTC terminal or the IMEI of the device, and the security key, and forms a non-access layer (NAS layer) signaling according to the IMSI or the IMEI of the device and the security key.
  • NAS layer non-access layer
  • the non-access stratum signaling includes various non-access stratum signaling for performing MTC terminal network registration, authentication, ID acquisition, and security establishment.
  • the central control node interacts with the core network node according to the non-access stratum signaling, for example, performing various functions such as network registration, authentication, ID acquisition, and security establishment.
  • the core network node selects a mobility management entity MME (Multi Media Extension), which can register and authenticate the network in the network registration of the MTC terminal according to the information in the non-access stratum signaling. , ID acquisition, security establishment, operation.
  • MME Multi Media Extension
  • the non-access stratum signaling is generated by the central control node according to the MTC terminal access request information of the MTC terminal, and therefore, the non-access stratum signaling and the prior art
  • the non-access stratum signaling generated by the MTC terminal is the same. Therefore, for the mobility management entity MME, when it performs authentication and verification, it is still based on authenticating and verifying the information of the MTC terminal.
  • the core network node MME may compare the IMSI and the security key of the MTC terminal with related information in the HSS to determine the foregoing, because the HSS includes the already registered MTC terminals and the information thereof. Whether the MTC terminal is legal.
  • step S206 the core network node MME allocates a global temporary unique identifier GUTI to the MTC terminal, and an IP address corresponding to the MTC terminal.
  • the interaction between the MTC terminal and the core network node MME is represented by the GUTI identifier of the MTC terminal, and the IMSI or IMEI of the MTC terminal is not required to be transmitted.
  • the core network node After the GUTI and the IP address are allocated to the MTC terminal, the core network node returns the information including the GUTI identifier and the IP address to the central control node, where it can be understood that the foregoing information is through the non-access layer Let the pass.
  • the central control node receives the foregoing non-access stratum signaling message and obtains the MTC terminal legal. At this time, the central control node allocates a temporary temporary control node to the MTC terminal. A unique identifier, and mapping the temporary unique identifier to the GUTI identifier.
  • the temporary unique identifier has a one-to-one correspondence with the corresponding MTC terminal unless the central control node deletes it.
  • the temporary unique identifier may select a MAC address of the MTC terminal; of course, it may also be an RRC layer ID that the central control node re-allocates for the MTC terminal, for example, C-RANTI. Certainly, the foregoing temporary unique identifier may select other identifiers, and details are not described herein again.
  • the central control node establishes a corresponding relationship between the MTC terminal and the GUTI identifier and IP address assigned to the terminal by the core network.
  • the MTC terminal initiates a network registration request, it does not need to perform authentication and authentication with the core network node again, thereby saving a large amount of NAS layer signaling between the MTC terminal and the core network node. redundancy.
  • FIG. 7 is a flow chart showing another embodiment of a communication method of an MTC terminal of the present invention.
  • the communication method of the MTC terminal shown in the following includes: S301: The MTC terminal initiates a service request to the core network.
  • the MTC terminal transmits, to the central control node, the MTC terminal service access request information used to form the non-access stratum instruction that initiates the service access request to the core network node.
  • the central control node After the MTC terminal service request is sent to the central control node, the central control node reads the temporary unique identifier of the MTC terminal, and further identifies the corresponding MTC terminal that initiates the service request.
  • S304 The central control node searches for a GUTI identifier and an IP address corresponding to the temporary unique identifier of the MTC terminal, and replaces the non-access stratum signaling of the MTC terminal to form the MTC terminal service request according to the foregoing information.
  • the information includes: the IP address of the MTC terminal, the GUTI identifier, and the like, and the non-access stratum signaling initiated by the core network node is formed together with the service request information.
  • S305 The central control node interacts with the core network node by using the non-access stratum signaling; where: S306: the core network node MME processes the service request of the MTC terminal according to the non-access stratum signaling .
  • a service type indication flag needs to be set to inform the core network of the service to be transmitted.
  • the service information indication is sent to the central control node together with the MTC terminal information through the access layer signaling.
  • the foregoing embodiment has the advantage that the MTC terminal and the central control node only need to perform message transmission by using access layer signaling, and the central control node replaces the MTC terminal for subsequent and core.
  • Non-access stratum signaling and procedures between networks thereby reducing the requirements for MTC terminals, thereby reducing the cost of MTC terminals, and also avoiding radio resources in environments where a large number of MTC terminals are deployed.
  • FIG. 8 is a schematic diagram of another embodiment of a communication method of an MTC terminal according to the present invention. As shown in FIG. 8, the communication method of the MTC terminal further includes:
  • S401 The core network node initiates a call to the MTC terminal.
  • S402 The core network node sends the message sent to the MTC terminal to the central control node, where the message includes the identification information of the terminal, for example: S-TMSI or IMSI or IMEI of the MTC terminal;
  • the message is a paging message initiated by the core network node, and the paging message is delivered to the central control node by means of non-access stratum signaling;
  • the paging message paging includes the identification information of the MTC terminal to be called, including: S-TMSI or IMSI or IMEI of the MTC terminal;
  • S403 The central control node determines an opportunity of the MTC terminal of the call according to the S-TMSI in the paging message.
  • the central control node acquires a temporary unique identifier of the MTC terminal according to the information of the MTC terminal, where the temporary unique identifier is as shown above, and may select a MAC layer address or an RRC layer ID.
  • S405 the central control node sends the call message to the corresponding MTC terminal by using the access layer signaling, thereby completing the call initiated by the network side to the MTC terminal.
  • This embodiment has the advantage of all of the previous embodiments, that is, the method can save a large amount of redundancy of NAS layer signaling between the MTC terminal and the core network node.
  • FIG. 3 is a schematic structural diagram of a communication system of an MTC terminal according to the present invention.
  • the communication system of the MTC terminal mainly includes:
  • An MTC terminal configured to report the MTC terminal information to the central control node
  • a central control node configured to form non-access stratum signaling corresponding to the MTC terminal information according to the MTC terminal information, and send the non-access stratum signaling to a core network node;
  • the core network node is configured to interact with the central control node based on the non-access stratum signaling.
  • the MTC terminal information is information necessary for the MTC terminal to initiate non-access stratum signaling to the core network node.
  • the MTC terminal is in a quasi-stationary state, and is taken
  • the IMEI in the USIM/SIM or the IMSI of the device authenticates and authenticates with the core network node.
  • connection mode between the MTC terminal and the central control node is 3GPP, for example, TD-LTE; data and signaling interaction between the core network node and the central control node by means of wireless or wired.
  • the MTC terminal and the central control node perform the transmission of the MTC terminal information by using access layer signaling, where the access layer signaling includes media access control layer signaling or wireless Resource control layer signaling.
  • the present invention can transmit between the MTC terminal and the central control node with a small bandwidth, for example, 1.4 M; and, the present invention can only be applied to the prior art. It is said that the MTC terminal does not require the function of non-access layer signaling interaction with the core network node, thereby reducing the requirements of the MTC terminal and its design complexity, thereby reducing the cost and power consumption of the MTC terminal;
  • the present invention is also capable of implementing management of the MTC terminal by means of the central control node, thereby improving the security between the MTC terminal and the core network communication.
  • the MTC terminal further includes:
  • An information generating unit configured to generate MTC terminal information
  • an information sending unit configured to transmit the MTC terminal information to the central control node according to the access layer signaling.
  • the MTC terminal information is information necessary for the MTC terminal to initiate non-access stratum signaling to the core network node.
  • the MTC terminal interacts with the central control node through the access layer signaling, and does not need to interact with the core network node, thereby reducing the access layer signaling protocol of the MTC terminal and reducing the complexity of the MTC terminal. And reduce the energy consumption of the MTC terminal.
  • the central control node specifically includes:
  • a signaling receiving module configured to receive MTC terminal information or a core network node that is sent by the MTC to form NAS layer signaling to the core network node.
  • NAS layer signaling message returned to the central control node;
  • the MTC terminal service access request information of the requested non-access stratum instruction For example, receiving MTC terminal access request information sent by the MTC terminal for forming a non-access stratum instruction for initiating a network registration request to the core network node; for forming a service access to the core network node.
  • the signaling conversion module is configured to generate NAS layer signaling corresponding to the MTC terminal information according to the MTC terminal information;
  • the message processed by the central control node to the NAS layer signaling message returned by the core network node to the central control node is converted into the access layer signaling returned to the MTC terminal; for example, the core network node returns the included information to the MTC terminal.
  • Non-access stratum signaling of the assigned GUTI identity and the IP address of the MTC terminal is converted into the access layer signaling returned to the MTC terminal; for example, the core network node returns the included information to the MTC terminal.
  • the signaling sending module is configured to send the NAS layer signaling to the core network node; or send the access layer information that the central control node needs to return to the MTC terminal to the MTC terminal.
  • the central control node further includes: a temporary identifier allocation module, an address mapping module, and an address library module, where
  • the identifier allocation module is configured to allocate a temporary unique identifier to the MTC terminal, where the temporary identifier is a MAC layer address of the MTC terminal or an RRC layer ID allocated to the MTC terminal;
  • the address mapping module is configured to obtain a GUTI identifier and an IP address of the MTC terminal, and map the GUTI identifier and the IP address that are allocated to the MTC terminal by the temporary unique identifier and the core network node; A temporary unique identifier, a GUTI identifier, and an IP address for receiving and storing the MTC terminal.
  • the central control node has a protocol conversion function, and the central control node can manage the connection of various MTC terminals, thereby reducing the overhead of the air interface resources involved in the MTC terminal, and providing conditions for the deployment of the MTC terminal.
  • the central control node further selects to temporarily save related information of the MTC terminal or delete information related to the MTC terminal according to the message that the MTC terminal is shut down and attached, and the processing method and the related art Similar, it will not be described in detail here.

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

Abstract

L'invention concerne un procédé et un système de communication de terminal MTC, et un nœud de commande central. Le procédé comprend les étapes suivantes : un terminal MTC rapporte des informations de terminal MTC à un nœud de commande central ; le nœud de commande central génère alors la signalisation de couche de non-accès correspondante d'après les informations de terminal MTC, puis envoie la signalisation de couche de non-accès à un nœud de réseau central. La présente invention réduit la complexité de la conception du terminal MTC et économise le surdébit des ressources d'interface radio utilisées pour faire effectuer la signalisation NAS par le terminal MTC, ce qui réduit la consommation d'énergie du terminal MTC et facilite le déploiement des services MTC. L'invention concerne également un système de communication de terminal MTC et un nœud de commande central.
PCT/CN2012/081848 2011-11-15 2012-09-24 Procédé et système de communication de terminal mtc, et nœud de commande central WO2013071792A1 (fr)

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CN201110362235.1A CN103108377B (zh) 2011-11-15 2011-11-15 一种mtc终端的通信方法、系统及中心控制节点

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