WO2011050689A1 - 机器类通讯终端的接入控制方法和系统 - Google Patents

机器类通讯终端的接入控制方法和系统 Download PDF

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Publication number
WO2011050689A1
WO2011050689A1 PCT/CN2010/077970 CN2010077970W WO2011050689A1 WO 2011050689 A1 WO2011050689 A1 WO 2011050689A1 CN 2010077970 W CN2010077970 W CN 2010077970W WO 2011050689 A1 WO2011050689 A1 WO 2011050689A1
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WIPO (PCT)
Prior art keywords
mtc
mtc terminal
mobility management
network element
management network
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PCT/CN2010/077970
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English (en)
French (fr)
Inventor
李志军
王志海
施晓峰
谢宝国
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中兴通讯股份有限公司
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Publication of WO2011050689A1 publication Critical patent/WO2011050689A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/02Access restriction performed under specific conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an access control method and system for a machine type communication (MTC) terminal.
  • MTC machine type communication
  • M2M includes networked applications and monthly services with the intelligent interaction of machine terminals as the core.
  • M2M is based on intelligent machine terminals and uses multiple communication methods as access means. It can provide customers with information solutions to meet customers' information needs in monitoring, command and dispatch, data collection and measurement.
  • M2M can be used in industrial applications (eg, traffic monitoring, alarm systems, marine rescue, vending machines, paying for cars, etc.), home applications (eg, automatic meter reading, temperature control, etc.) and personal applications (eg, life detection, far End diagnosis, etc.).
  • M2M communicates with the machine
  • the communication behavior is automatically controlled, that is, the initiation of communication, the termination of communication, and the control of some access and restrictions in the communication process are automated.
  • the behavior of This behavior depends on the constraints and control of the behavior of the machine (ie, the terminal in the M2M communication) in the M2M communication.
  • the behavior of the terminal in the M2M communication is constrained by the service subscription data, and the network is based on the service subscription data in the M2M communication. The terminal is managed.
  • M2M communication also known as Machine Type Communication (MTC)
  • MTC Machine Type Communication
  • the terminal is called MTC User Equipment (MTC).
  • UE the application server is called MTC server ( MTC Server )
  • MTC server MTC Server
  • M2M communication mainly uses packet service network as the underlying bearer network to implement MTC terminal and Business layer communication between MTC servers.
  • Figure 1 is Schematic diagram of the architecture of the M2M communication entity accessing the Evolved Packet System (EPS).
  • the underlying bearer network includes: an evolved universal mobile communication system (Evolved Universal Terrestrial Radio Access Network, E-UTRAN for short), and a Mobility Management Entity (MME).
  • E-UTRAN evolved Universal Terrestrial Radio Access Network
  • MME Mobility Management Entity
  • S-GW Service Gateway
  • PDN GW Packet Data Network Gateway
  • PGW Packet Data Network Gateway
  • HSS Home Subscriber Server
  • PCRF Policy and Charging Rules Function
  • the main network element of the E-UTRAN is an eNodeB (Evolved NodeB, base station).
  • eNodeB evolved NodeB, base station
  • the MME is responsible for control planes such as mobility management, non-access stratum signaling processing, and context management in user mobility management
  • the S-GW is an access gateway device connected to the E-UTRAN, Forwarding data between E-UTRAN and P-GW, and responsible for buffering paging waiting data
  • P-GW is a border gateway of EPS and Packet Data Network (PDN), responsible for PDN connection The function of forwarding data between the EPS and the PDN
  • the PCRF is a policy and charging rule function entity, which is connected to the service network protocol (Internet Protocol, IP for short) through the receiving interface Rx to obtain service information.
  • IP Internet Protocol
  • the gateway device in the network can be connected to the gateway device in the network through the Gx interface, and is responsible for initiating the establishment of the IP bearer, ensuring the quality of service (QoS) of the service data, and performing charging control.
  • the HSS provides management of subscriber subscription data and management of important contextual information that users access to the network.
  • the MTC UE accesses the EPS network through the E-UTRAN (eNodeB). After the IP address is assigned, an IP channel can be established between the MTC UE and the MTC Server, thereby implementing an upper layer with the MTC Server. Business communication.
  • the IP channel established between the MTC UE and the MTC Server is an IP channel that is also overwritten, and its physical path passes through: eNodeB, S-GW, and P-GW.
  • M2M communication is to establish a service layer interface protocol on the IP channel between the MTC UE and the MTC server. Through the service layer interface protocol, the MTC UE and the MTC Server exchange service data, and at the same time, the MTC Server also The control of the MTC UE is implemented by the service layer protocol.
  • Figure 2 depicts the flow of M2M communication in this way, as shown in Figure 2, in which MTC
  • the UE accesses through the packet network (PS network) to establish a communication connection with the MTC Server. Including the following steps:
  • the MTC UE initiates an attach request to the MME.
  • the MME receives the foregoing attach request, and sends a location update request to the HSS.
  • the HSS downloads the subscription data of the MTC UE to the MME, where the subscription data portion for the M2M access control is included.
  • the MME sends a create request to the SGW/PGW, requesting the SGW/PGW to create an appropriate load for the MTC UE.
  • the PGW needs to obtain policy data from the PCC to establish a suitable bearer according to the PGW, the PGW and the PCC interact to obtain a PCC policy; S205, the PGW creates a payload for the MTC UE, and returns a create response.
  • the MME sends an attach response to the MTC UE.
  • the MTC UE is attached to the PS network, is assigned an IP address, and establishes an appropriate payload, so that the service layer registration can be initiated to the MTC Server.
  • the MTC UE initiates registration of the service layer to the MTC Server;
  • S208 the MTC Server accepts registration of the MTC UE, and returns a registration response;
  • the subsequent MTC UE and the MTC Server exchange data through a service layer protocol.
  • the MTC UE accesses the PS network and establishes an IP connection with the MTC Server, thereby enabling service layer communication between the subsequent MTC Server and the MTC Server.
  • the MTC Server cannot obtain the underlying access layer. The event, so that it is impossible to judge whether the access of the MTC UE is normal. In some cases, access to the MTC terminal needs to be restricted. Only the MTC terminal is allowed to access under the specified conditions. If the condition is not allowed, the access of the MTC terminal is denied. For example, in some M2M services, due to the theft of the MTC device and the theft of the SIM card, it is necessary to access the MTC terminal device in the network.
  • IMSI International Mobile Subscriber Identification Number
  • IMEI International Mobile Equipment Identity
  • the IMSI exists on the SIM card and is a public identity of the MTC UE, which is allocated by the operator.
  • the IMEI is present on the terminal device and is set by the manufacturer at the time of shipment. If it is defined that the MTC terminal device can only access the network using a specific IMSI and IMEI, it should judge when accessing the network, and if the IMSI and IMEI pairing do not match, the access of the MTC terminal device is rejected. For example, in some M2M services, the MTC terminal is applied in a fixed location area beyond which the area will not be allowed to use.
  • the MTC terminal is restricted from accessing the system within a specified time, and access to the system will not be allowed beyond this time. At this time, it is necessary to limit the access time of the MTC terminal. If the access time is within an unallowable time period, or the access time exceeds the allowed time, it is necessary to restrict access to the system.
  • the MTC server belongs to the service layer functional entity, the underlying access layer information related to the MTC terminal cannot be obtained, and thus it is impossible to determine whether the MTC terminal satisfies the specified access condition. Therefore, the access behavior of the MTC terminal can only be controlled at the access layer, for example, under the E-UTRAN access, and controlled by the MME.
  • the control by the MME requires the MME 4 to perform corresponding checks and judgments on various management requirements. Due to the complexity of different types of M2M services, the MME needs to implement these requirements for the type of access authentication of the MTC terminal. This will greatly increase the complexity of the core network.
  • the present invention has been made in view of the problem in the prior art that an access control of an MTC terminal by an access layer is required to cause an increase in the complexity of the core network.
  • the main object of the present invention is to provide an improved M2M terminal.
  • the access control scheme to solve at least one of the above problems.
  • an access control method of an MTC terminal is provided.
  • the access control method of the MTC terminal according to the present invention includes: the MTC server obtains, by the mobility management network element, information currently attached to the network or the MTC terminal currently attached to the network; The MTC server determines that the MTC terminal is not allowed to access according to the information of the MTC terminal, and sends an indication to the mobility management network element to reject the access of the MTC terminal; the mobility management network element receives the indication, and then refuses to access the network by the MTC terminal according to the indication.
  • an access control system for an MTC terminal is provided.
  • the access control system of the MTC terminal according to the present invention includes: a user subscription data store, a mobility management network element, and an MTC server.
  • the user subscription data storage is used to store the subscription data of the MTC terminal in the system;
  • the mobility management network element is connected to the user data storage port, and is configured to receive the current request sent by the user subscription data storage to be attached to the network or currently
  • the subscription data of the MTC terminal attached to the network, and the information of the MTC terminal is provided to the MTC server;
  • the MTC server is connected to the mobility management network element, and is configured to determine whether to allow the MTC terminal to access according to the information of the MTC terminal, and not When the MTC terminal is allowed to access, an indication of rejecting the MTC terminal access is sent to the mobility management network element, so that the mobility management network element rejects the MTC terminal from accessing the network.
  • the MTC server obtains the information of the MTC terminal through the mobility management network element, and determines whether to allow the MTC terminal to access according to the information of the MTC terminal, so that the MTC terminal can be accessed through the MTC server.
  • the control solves the problem that the complexity of the core network is increased due to the access control of the access layer to the MTC terminal in the prior art, and thus the complexity of the core network of the booster port is not required.
  • FIG. 1 is a schematic diagram of an architecture of an M2M communication entity accessing an EPS in a related art
  • FIG. 2 is a flowchart of a related art in which an MTC UE accesses through a PS network and establishes a communication connection with an MTC server
  • 3 is a schematic structural diagram of an access control system of an MTC UE according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of an MTC UE accessing an M2M through an EPS system according to Embodiment 1 of the present invention
  • FIG. 5 is a block diagram of an MTC UE accessing M2M communication through a GPRS system according to Embodiment 2 of the present invention
  • FIG. 6 is a flowchart of an access control method of an MTC terminal according to an embodiment of the present invention
  • FIG. 7 is a flowchart of information about an MME actively transmitting to an MTC UE on an MTC Server according to an embodiment of the present invention
  • FIG. 8 is another information of an MME actively transmitting an MTC UE to an MTC Server in the embodiment of the present invention
  • FIG. 9 is a flowchart of obtaining, by an MTC server, an address of an MME allocated to an MTC UE by using a GUTI of an MTC UE according to an embodiment of the present invention
  • FIG. 10 is a schematic diagram of an MME actively serving an MTC Server of the MME according to an embodiment of the present invention
  • FIG. 11 is a schematic diagram of an address of an MME allocated by an MTC server to an MTC UE by using an HSS according to an embodiment of the present invention
  • FIG. 12 is a schematic diagram of an MTC Server sending a query request to an MME according to an embodiment of the present invention
  • Figure 13 is a flowchart of the information of the MTC UE in the embodiment of the present invention
  • Figure 13 is a flowchart of the information about the MTC UE acquiring the MTC UE by the MTC server in the embodiment of the present invention
  • Figure 15 is a flow chart of a fourth embodiment of the present invention.
  • the MTC server cannot know the information about the access layer/bearer layer of the MTC UE. Therefore, the access control scheme of the MTC UE can only be controlled by the access layer, so that the complexity of the core network is increased.
  • the embodiment of the present invention provides an access control scheme for the MTC UE.
  • the MTC server and the mobility management network element at When the MTC UE accesses the E-UTRAN network, it is the MME.
  • the MTC UE accesses the GSM/EDGE Radio Access Network (GSM/EDGE Radio Access Network, referred to as the GERAN VUTRAN network), it is the general-purpose packet radio service support node.
  • GSM/EDGE Radio Access Network GSM/EDGE Radio Access Network
  • SGSN Server General packet radio service support node, hereinafter referred to as SGSN
  • MTC server obtains related information of the access layer/bearer layer of the MTC UE through the mobility management network element, and according to the information of the MTC UE
  • the MTC UE performs access control.
  • the invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
  • a control system for an MTC terminal is provided.
  • 3 is a schematic structural diagram of an access control system of an MTC terminal according to an embodiment of the present invention. As shown in FIG.
  • an access control system of an MTC terminal mainly includes: a user subscription data storage 1, and mobility. Management network element 3 and MTC server 5.
  • the above various network elements are described below.
  • the user subscription data storage 1 is configured to store the subscription data of the MTC terminal in the system;
  • the mobility management network element 3 is connected to the user subscription data storage 1 and is configured to receive the current request sent by the user subscription data storage 1 to be attached to The network or the subscription data of the MTC terminal currently attached to the network, and provides the information of the MTC terminal to the MTC server 5; in a specific application, when the MTC UE requests to attach to the network, the MTC UE ⁇ !
  • the mobility management network element 3 sends an attach request, and after receiving the attach request of the MTC UE, the mobility management network element 3 sends a location update request to the user subscription data storage 1, and the user subscription data storage 1 receives the location update request. Then, the subscription data of the MTC UE is delivered to the mobility management network element 3, and the mobility management network element 3 receives and stores the subscription data. And, after the MTC UE is attached to the network, if the subscription data of the MTC UE changes, the user subscription data storage 1 sends the updated subscription data of the MTC UE to the mobility management network element 3.
  • the MTC server 5 is connected to the mobility management network element 3, and is configured to determine whether the MTC terminal is allowed to access according to the information of the MTC terminal provided by the mobility management network element 3, and the MTC terminal is not allowed to be accessed. In the case of terminal access, an indication to reject the access of the MTC terminal is sent to the mobility management network element 3, so that the mobility management network element 3 rejects the access of the MTC terminal to the network. After receiving the indication from the MTC server 5, if the current MTC terminal requests to attach to the network, the mobility management network element 3 rejects the attach request of the MTC terminal, and returns a reject attachment response to the MTC terminal.
  • the mobility management network element 3 initiates a detach process to attach the MTC terminal.
  • an interface between the MTC server 5 and the mobility management network element 3 is added on the existing architecture, so that communication can be performed between the MTC server 5 and the mobility management network element 3.
  • the MTC server 5 can also directly connect with the user subscription data storage 1, that is, there is an interface between the MTC server 5 and the user subscription data storage 1, so that the MTC server 5 can sign up from the user.
  • the data storage 1 acquires the subscription data of the MTC UE, or the address of the mobility management network element 3 allocated for the MTC UE.
  • the MTC UE initiates registration with the MTC server 5 through the network.
  • the MTC server 5 can obtain the interface through the interface with the user to subscribe to the data storage 1.
  • the address of the mobility management network element 3 allocated by the MTC UE can then obtain the information of the MTC UE from the mobility management network element 3 corresponding to the address through the acquired address of the mobility management network element 3.
  • the user subscription data storage 1 is an HSS
  • the mobility management network element 3 is an MME
  • the MTC UE accesses the GERAN/UTRAN network the user subscribes to the data storage 1
  • the mobility management network element 3 is an SGSN.
  • FIG. 4 is a structural diagram of the MTC UE accessing the M2M communication through the EPS system in the embodiment.
  • the connection between the MTC server and the MME is implemented, so that the MTC server obtains the MTC from the MME.
  • the MTC server and the MME establish an interface.
  • the interface is referred to as an M2M-MME in this embodiment.
  • the MTC Server can query or subscribe to the information related to an MTC UE or the event of the underlying access layer to the MME.
  • the MTC UE is attached to the PS network, the MTC UE is detached from the PS network, and the MTC UE is in the PS. Events such as location movements have occurred in the network.
  • the MME may actively notify the MTC Server of the event of the underlying access layer associated with a certain MTC UE through the interface. Therefore, the MTC Server can obtain the underlying access layer information of the MTC UE, and determine, according to the access layer information, whether the MTC UE allows access, thereby performing access control on the MTC UE.
  • an interface may be established between the MTC server and the HSS.
  • the interface is referred to as an M2M-HSS in this embodiment.
  • the MTC Server can query the subscription data of the MTC UE from the HSS. According to the subscription data, the MTC Server can determine whether the current access of the MTC UE violates the service subscription, and can perform access control on the MTC UE. . Alternatively, the MTC Server can query the address of the MME allocated for the MTC UE from the HSS, and then obtain the information of the MTC UE through the MME. In a specific application, if the M2M-HSS interface is not established between the MTC Server and the HSS, the MTC Server can obtain the subscription data of the MTC UE saved in the MME by using the M2M-MME interface with the MME.
  • the MTC Server can actively query the MME for the subscription data of the MTC UE.
  • the MME can also actively send the subscription data of the MTC UE to the MTC Server.
  • Embodiment 2 This embodiment is described by taking an example in which an MTC UE accesses a GERAN/UTRAN network.
  • FIG. 5 is a structural diagram of the M2M communication in the METH UE through the GERAN/UTRAN network access in the embodiment. As shown in FIG. 5, the embodiment is basically similar to the foregoing embodiment 1. The difference is that in the GERAN/UTRAN network.
  • the SGSN is equivalent to the MME in the E-UTRAN network, and is used to implement the access control and mobility management functions of the PS domain.
  • the Gateway GPRS Support Node (GGSN) in the GERAN/UTRAN network is equivalent to E. - SGW and PGW in the UTRAN network
  • the HLR in GERAN/UTRAN is equivalent to the HSS in the E-UTRAN network.
  • the functions of the specific connections and the functions of the network elements are similar to those of the above-mentioned system embodiment, and will not be described again.
  • an access control method for an MTC UE is also provided, and the method may be implemented by the foregoing system provided according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of an access control method of an MTC UE according to an embodiment of the present invention. As shown in FIG.
  • an access control method of an MTC UE mainly includes the following steps: Step S601 -Step S605): Step S601: The MTC server obtains, by the mobility management network element, information that is currently attached to the network or the MTC terminal that is currently attached to the network. Step S603: The MTC server determines, according to the information of the MTC terminal, that the MTC terminal is not allowed to access, The mobility management network element sends an indication to reject the access of the MTC terminal. Step S605: The mobility management network element receives the indication, and according to the indication, rejects the access of the MTC terminal to the network. The processing of each step described above will be further described below. I.
  • Step S601 the MTC server obtains the information of the MTC UE through the mobility management network element, which is obtained by the mobility management network element.
  • the execution of the step may include the following two steps: Step 1: The mobility management network element reports the information of the MTC terminal to the MTC server. Step 2: The MTC server obtains the information of the MTC terminal reported by the mobility management network element.
  • the information of the mobility management network element to the MTC server on the MTC server includes, but is not limited to, the following three methods:
  • the mobility management network element actively sends the MTC Server to the MTC Server.
  • the mobility management network element may actively notify the MTC Server when the access layer carrier event of an MTC UE occurs, or the mobility management network.
  • the element actively reports information of an MTC UE to the MTC Server.
  • MTC Server queries the mobility management network element
  • the MTC Server queries the mobility management network element for the information of the MTC UE. After receiving the query request from the MTC Server, the mobility management network element sends the MTC UE information to the MTC Server.
  • the MTC Server subscribes to the MTC UE for the event that the mobility management network element subscribes to the MTC UE, and subscribes the mobility management network element to the access layer/carrier layer event associated with a certain MTC UE, and the mobility management network element is subscribed.
  • Proactively notify MTC when an access layer/bearer layer event occurs Server the notification contains the information of the corresponding MTC UE.
  • the following three methods for obtaining MTC UE information are described below. It should be noted that the above three methods may be used separately or in combination of two or three.
  • the mobility management network element actively sends information to the MTC server.
  • the mobility management network element When the mobility management network element actively sends information to the MTC UE on the MTC Server, the mobility management network element is obtained according to the subscription data storage from the user.
  • the obtaining, by the mobility management network element, the subscription data of the MTC UE from the user subscription data store includes: indicating the indication information that the mobility management network element reports the MTC UE to the MTC server (specifically, indicating the timing of reporting, the reported parameter Information such as the MTC Server serving the MTC UE.
  • the mobility management network element can parse the address of the MTC server that is the MTC UE's monthly service from the information of the obtained MTC server, and then send the information of the MTC UE to the MTC Server, and in the specific implementation process, move
  • the information management network element may actively send information to the MTC server to the MTC UE when the MTC UE initiates the attach request, or may also generate an access layer/bearer layer event related to the MTC UE after the MTC UE attaches to the network.
  • the event notification is reported to the MTC server, and the current information of the MTC UE is carried in the event notification.
  • FIG. 7 is a flow chart of the information that the MME actively sends to the MTC Server on the MTC UE in this case, as shown in the figure.
  • the MME actively reports the information of the MTC UE to the MTC server, which mainly includes the following steps:
  • the MTC UE initiates an attach request to the MME.
  • S702 The MME sends a location update request to the HSS.
  • the HSS returns a location update response to the MME, where the location update response carries the subscription data of the MTC UE, where the subscription data includes: indication information indicating that the MME reports the information of the MTC UE to the MTC server, and is the monthly subscription of the MTC UE.
  • Information about the MTC Server (specifically, This information can be the address of the MTC Server or the identifier of the MTC Server.
  • the MME parses the address of the MTC server according to the information of the MTC server serving the MTC UE.
  • the MME reports the information of the MTC UE to the MTC Server according to the address of the MTC Server.
  • FIG. 8 is a flow chart of the information that the MME actively sends to the MTC Server on the MTC UE in this case, as shown in the figure.
  • the information that the MME actively sends to the MTC server to the MTC UE mainly includes the following steps:
  • the MTC UE is attached to the PS network.
  • the MME obtains subscription data of the MTC UE from the HSS, where the subscription data for the M2M service part is included.
  • the M2M service subscription data includes an address of the MTC server that is the MTC UE's monthly service request, and the MME is requested to report the predetermined event related to the MTC UE to the MTC server, that is, requesting the MME to generate a predetermined event in the MTC UE.
  • sending the event notification to the MTC Server where the predetermined event is an access layer/bearer layer event related to the MTC UE, and specifically, the foregoing predetermined event includes but is not limited to one or any combination of the following:
  • the subscription data of the MTC UE changes. After the HSS changes the subscription data of the MTC UE, the HSS needs to re-issue the new subscription data to the MME. After receiving the new subscription data, the MME may notify the MTC Server that the subscription data has Change, or directly send new subscription data to the MTC Server;
  • the MTC UE has a large state change; for example, the MTC UE is attached to the network, the MTC UE is detached from the network, the MTC UE is changed from the connected state to the idle state, and the MTC UE is changed from the idle state to the connected state;
  • the change of the location area i of the MTC UE for example, the location movement of the MTC UE, etc., when the location movement of the MTC UE occurs, the MTC UE sends a location update message to the MME, so that the MME can capture the MTC UE.
  • Position movement has occurred;
  • the network change of the MTC UE for example, the MTC UE has a handover of the base station and the network. In this case, the MTC UE sends a handover message to the MME, so that the MME can capture the network change event of the MTC.
  • the IMSI and IMEI relationship of the MTC UE changes; for example, the pairing relationship between the IMSI and the IMEI that the MTC UE should use is specified in the subscription data, but the current MTC UE replaces the terminal, such as changing the SIM card to the non-MTC terminal. on.
  • the MTC Server needs to obtain the IMSI and IMEI pairing used by the MTC UE.
  • the foregoing predetermined event that is, an access layer/bearer layer event related to the MTC UE occurs;
  • the MME actively informs the MTC Server of the occurrence of the predetermined event.
  • the event notification sent by the MME to the MTC Server includes the current information of the MTC UE.
  • the access layer/bearer layer event of the S802 may occur in the step S801, for example, the event is an attach event, and the MME should be attached to the MTC UE.
  • the network sends an event notification to the MTC Server.
  • the information of the MTC UE of the MME to the MTC Server includes, but is not limited to, one of the following or any combination thereof:
  • the UE is carried in the attach message sent when the UE is attached to the network, and the IMEI may be provided by the MTC UE to the network when it is attached, or may be obtained by the network querying the MTC UE according to the need;
  • Context information of the MTC UE on the MME for example, the current location area of the MTC UE and the current state of the MTC UE.
  • the current location area of the MTC UE may be: Tracking Area (TA) of the MTC UE
  • the current Cell cell of the MTC UE, and the current state of the MTC UE may be one of an attached state, a detached state, a connected state, an idle state, and the like.
  • the mobility event currently occurring by the MTC UE for example, the MTC UE attaches to the network, the MTC UE detaches from the network, the MTC UE location update, the MTC UE base station handover, the MTC UE network handover, and the like.
  • the MTC Server queries the mobility management network element specifically. After the MTC UE is attached to the network, the MTC Server sends a query request to the mobility management network element to request to query the information of the MTC UE, and the mobility management network element receives the information. After the query request, the MTC UE reports the information to the MTC server.
  • the MTC Server before the MTC Server sends a query request to the mobility management network element, the MTC Server first needs to obtain the address of the mobility management network element allocated for the MTC UE, and then according to the address, to the MTC UE.
  • the assigned mobility management network element sends the above query request.
  • the MTC Server obtains the address of the mobility management network element allocated for the MTC UE, including but not limited to the following three methods:
  • the MTC Server obtains the registration information sent by the MTC UE, and carries the identification information of the mobility management network element allocated for the MTC UE, and parses the identification information of the mobility management network element from the identifier information; for example, In the EPS network, the registration message sent by the MTC UE to the MTC server may carry the Global Unique Temporary Identity (GUTI) of the MTC UE, and the GUTI includes the MME allocated for the MTC UE. ID information, by parsing the GUTI, the MTC Server can obtain the address of the mobility management network element allocated for the MTC UE;
  • GUTI Global Unique Temporary Identity
  • the mobility management network element allocated for the MTC UE actively informs the MTC Server of its address; (3) the MTC Server obtains the mobile terminal allocated for the MTC UE from the user subscription data storage through its interface with the user subscription data memory.
  • the address of the management network element takes the E-UTRAN network as an example to describe the methods for obtaining the addresses of the above three mobility management network elements.
  • the MTC Server obtains the address of the MME allocated for the MTC UE by parsing the GUTI of the MTC UE, and the following steps are mainly included: 5901, the MTC UE is attached to the PS network, and the network allocates a GUTI to the MTC UE in the attaching process, and the GUTI is carried in the attach response and sent to the MTC UE.
  • the GUTI includes the allocation to the MTC UE.
  • the ID information of the MME according to the MME ID, the MTC Server can address the MME allocated for the MTC UE.
  • the MTC UE After the access to the PS network, the MTC UE initiates an application layer registration registration message to the MTC server, where the registration message carries the GUTI information;
  • the MTC Server parses the address of the MME allocated by the MTC UE according to the GUTI information carried in the registration message, and the MTC Server can send a query request to the MME if necessary. To query the information of the MTC UE;
  • the MTC Server If an interface exists between the MTC Server and the HSS, the MTC Server queries the HSS for the subscription data of the MTC UE.
  • FIG. 10 is a flowchart of the MME actively notifying the MTC Server of the address of the MME. As shown in FIG. 10, in a specific application, the MME actively notifies the MME.
  • the address mainly includes the following steps:
  • the MTC UE sends an attach request to the network, specifically, the MTC UE sends an attach request to the MME in the network; S102, the MME sends a location update request to the HSS;
  • the HSS sends a location update response to the MME.
  • the HSS sends the subscription data of the MTC UE to the MME, where the M2M subscription data is included, and the M2M subscription data includes the identifier of the MTC server serving the MTC UE.
  • the information may be the MTC Server domain name or the IP address of the MTC server.
  • the MME can resolve the corresponding MTC Server address according to the identifier information.
  • the MME instructs the SGW/PGW to create a suitable bearer for the MTC UE. 5105. The MME sends an attach response to the MTC UE.
  • the MME sends a notification message to the MTC server to notify the MTC server of the address of the MME.
  • the notification message may be an independent notification message, or may exist in other messages sent by the MME to the MTC server (for example, in the When the MTC UE is attached, the MME sends an attach event to the MTC Server, and the notification message is carried in the event.
  • the notification message includes but is not limited to the following information: the identity of the MTC UE and/or the IP address of the MTC UE, and the identity of the MME and/or the IP address of the MME.
  • the MTC Server can obtain the address information of the MME allocated for the MTC UE. Through the foregoing steps, the MTC Server can obtain the address information of the MME allocated to the MTC UE, so that the query request can be sent to the MME when the information of the access layer/bearer layer of the MTC UE needs to be obtained.
  • the MTC UE sends a registration request of the service layer to the MTC Server, and the registration is successful.
  • the above step S106 may be performed after the above step S105, or may be performed after the above step S103.
  • the MTC Server obtains the address of the MME allocated to the MTC UE through the HSS.
  • the MTC Server can directly communicate with the HSS through the interface.
  • Figure 11 is a flow chart of the MTC server obtaining the address of the MME allocated to the MTC UE through the HSS. As shown in Figure 11, the MTC Server obtains the address of the MME allocated to the MTC UE through the HSS.
  • the MTC UE is attached to the PS network; in the process of attaching the MTC UE to the network, the address of the MME allocated for the MTC UE is saved in the HSS. S112.
  • the MTC UE initiates a service layer registration with the MTC Server.
  • the MTC Server queries the HSS for an address of the MME allocated for the MTC UE.
  • the HSS returns the address of the MME allocated to the MTC UE to the MTC Server.
  • the MTC Server acquires the address of the MME allocated by the network to the MTC UE.
  • the MTC Server sends a registration response to the MTC UE.
  • the MTC Server queries the HSS for the address of the MME allocated to the MTC UE, which may be: the MTC Server queries the HSS for the subscription data of the MTC UE, and the HSS returns the subscription data of the MTC UE.
  • the address of the MME that is allocated to the MTC UE is returned; the MTC Server may query the HSS for the address of the MME allocated for the MTC UE, and the HSS only returns the address of the MME allocated for the MTC UE.
  • the MTC Server may send the foregoing query request to the mobility management network element when needed, specifically, the MTC Server determines that mobility management needs to be performed.
  • the case where the network element sends a query request includes but is not limited to one of the following:
  • the MTC Server needs to know the IMSI and IMEI used by the MTC UE to detect whether the SIM card equipped for the MTC UE is stolen, that is, whether the IMSI and IMEI binding relationship are normal;
  • the MTC Server needs to know the MTC UE.
  • Current location information eg, TA area, Cell cell, etc.
  • the MTC Server needs to know the current location information of the MTC UE to determine whether the MTC UE moves to a location area that is not allowed;
  • FIG. 12 is a flowchart of the MTC Server sending an inquiry request to the MME to obtain the access layer/bearer layer information of the MTC UE. As shown in FIG. 12, the MTC Server sends the MME to the MME.
  • the query request and the information of the MTC UE mainly include the following steps: S211: The MTC UE is attached to the PS network;
  • the MTC UE initiates a service layer registration with the MTC Server.
  • S213 after the MTC UE is registered to the MTC Server, if the MTC Server is for service control purposes, the MTC UE determines that the current information of the MTC UE needs to be queried (mainly refers to access layer information); in this step, the MTC Server may be out of For a variety of possible purposes, you need to obtain the information of the MTC UE. For example, the MTC Server wants to know the IMSI and IMEI used by the MTC UE.
  • the MTC Server wants to know the current location information of the MTC UE (such as the TA area, the Cell cell, and the like) to determine whether the MTC UE is accessed in the location area that is not allowed, or whether it is moved to the location area that is not allowed;
  • the current location information of the MTC UE such as the TA area, the Cell cell, and the like
  • the MTC Server sends a query request to the MME to query information about the MTC UE.
  • the MME returns the current information of the MTC UE according to the current context of the MTC UE.
  • the MTC Server obtains the current information of the MTC UE from the MME, so that the current behavior of the MTC UE can be determined according to the current information of the MTC UE, and the behavior of the MTC UE can be further controlled.
  • the information of the MTC UE requested by the MTC Server to the MME includes but is not limited to one of the following or any combination thereof:
  • IMSI IMSI, IMEI used by the MTC UE; specifically, the IMSI used by the MTC UE is required to be carried in the attach message when the MTC UE attaches to the network, and the MME can obtain the IMSI used by the MTC UE from the attach message, and The IMEI may be provided to the network by the MTC UE when it is attached, or may be obtained by the network querying the MTC UE according to the need.
  • Context information of the MTC UE on the MME for example, the current location area of the MTC UE (the location areas may be: a TA area, a Cell), and the current status of the MTC UE (eg, the MTC UE is currently attached, and the connection status) , idle state, etc.).
  • the location areas may be: a TA area, a Cell
  • the current status of the MTC UE eg, the MTC UE is currently attached, and the connection status
  • idle state etc.
  • MTC Server subscribes to the relevant event port of the MTC UE to the mobile '1' management network element. Due to the needs of service management, the MTC Server needs to know the underlying access layer carrier layer in time. The sent events (such as MTC UE attachment, detachment, location change, etc.), and make corresponding decisions based on these events to control the behavior of the MTC UE. Therefore, the MTC Server can subscribe to the mobility management network element. The inbound/bearing layer event, the mobility management network element reports the event notification to the MTC server in time when the corresponding access layer/bearer layer event occurs, and the event notification carries the current information of the MTC UE.
  • the sent events such as MTC UE attachment, detachment, location change, etc.
  • the processing of the MTC Server is basically the same as the processing of the foregoing (2).
  • the MTC Server Before the MTC Server sends the query request for the relevant event of the subscription to the MTC UE to the mobility management network element, the MTC Server needs to acquire the allocation for the MTC UE.
  • the address of the mobility management network element is the same as the above, and will not be mentioned here.
  • the difference from the above (2) is that the query request sent by the MTC Server to the mobility management network element is used to subscribe to the related event of the MTC UE, that is, the mobility management network element is requested to be in the access layer layer associated with the MTC UE. When the event occurs, 4 events are notified to the MTC Server.
  • the MTC Server subscribes to the MME for the related event of the MTC UE.
  • the information about obtaining the MTC UE mainly includes the following steps:
  • the MTC UE is attached to the PS network
  • the MTC UE initiates a service layer registration with the MTC Server.
  • the MTC Server needs to know the events related to the MTC UE occurring in the underlying access layer layer in time, and therefore, decide to subscribe to the MME for these events;
  • the MTC Server subscribes to the MME for an access layer carrier event related to the MTC UE. It is clear that the MTC Server can subscribe to only one or one type of access layer/bearer layer event at a time, or can subscribe to multiple or more at a time. Class access layer/bearer layer events. S315, an access layer/bearer layer event corresponding to the MTC Server subscription;
  • the MME actively sends the access layer/bearer layer events to the MTC server.
  • the access layer/bearer layer event related to the MTC UE subscribed by the MTC Server to the MME may be one of the following events or thousands of events:
  • the state change of the MTC UE for example, the MTC UE attaches to the network, detaches from the network, changes from the connected state to the idle state, changes from the idle state to the connected state, and the like;
  • the network change of the MTC UE for example, the MTC UE has a handover of the base station and the network, and sends a handover message to the MME.
  • the methods for obtaining the MTC UE described in the above (2) and (3) may be used alone or in combination.
  • the information of the MTC UE that the MTC Server requests from the MME in the step S213 may further include:
  • a mobility event that occurs in the MTC UE for example, an MTC UE attaches to the network, an MTC UE detaches from the network, an MTC UE location update, an MTC UE base station handover, an MTC UE network handover, and the like. Then, when the above event occurs, the MME sends an event notification to the MTC Server, so that the MTC Server knows the current event of the MTC UE and the current information of the MTC UE.
  • the MTC Server may further perform the steps S313 and subsequent steps in FIG. 13 after the current information of the MTC UE, or after step S212, perform step 4 S213 and In step S313, the related event of the MTC UE is subscribed, so that when these events occur, the event notification of the MME is notified, the occurrence of these events is known, and the current information of the MTC UE is further acquired.
  • the MTC Server can be obtained from the mobility management network element.
  • the information of the MTC UE may be the subscription data of the MTC UE, the current status of the MTC UE,
  • the manner in which the MTC UE information is obtained may be that the MTC Server actively queries the mobility management network element, or the MTC Server subscribes to the mobility management network element. After the related event, the mobility management network element notifies the MTC Server when the event occurs, or the mobility management network element may actively notify the access layer carrier event to the MTC Server according to the indication in the subscription data of the MTC UE. .
  • Step S603 the MTC Server can obtain the underlying access layer from the mobility management network element.
  • the foregoing predetermined conditions include, but are not limited to, one of the following or any combination thereof: a time for allowing the MTC UE to access, a location area for allowing the MTC UE to access, a binding relationship between the IMSI and the IMEI allowed to be used by the MTC UE, and allowing the MTC The network to which the UE is attached, the number of times the MTC UE is allowed to access, and the like.
  • the foregoing predetermined condition may be stored in the user subscription data storage as the subscription data of the MTC UE, or may be saved in the MTC Server.
  • the rule may be saved by the user subscription data store as the subscription data of the MTC UE, by the MTC Server. Recording the total duration of the access of the MTC UE in one month.
  • the MTC Server may obtain the subscription data of the MTC UE from the mobility management network element, and notify the time difference between the notification and the detachment event notification according to the received attachment event. Calculating the duration of the MTC UE accessing each time, and recording the total duration of the MTC UE access in the month according to the duration, and determining whether the total duration of the MTC UE access in the month exceeds 24 hours.
  • the MTC Server determines whether the MTC UE is not allowed to access, including but not limited to one of the following or any combination thereof:
  • the MTC Server determines that the time when the MTC UE is attached to the network exceeds the allowed access time; (7) determining that the MTC UE switches to the disallowed network. Further, if the MTC Server determines that the MTC UE is not allowed to access when the MTC UE requests attachment, the MTC Server sends an indication to the mobility management network element to reject the MTC UE attachment; and if the MTC Server is in the MTC UE After being attached to the network and determining that the MTC UE is not allowed to access, the MTC Server sends an indication to the mobility management network element to detach the MTC UE.
  • Step 4 S605
  • the mobility management network element after receiving the foregoing indication sent by the MTC Server in step S603, the mobility management network element performs a corresponding operation according to the indication. Specifically, if the mobility management network element receives the foregoing indication in the process of the MTC UE initiating the attach request (when the MTC Server indicates to reject the MTC UE attach), the mobility management network element rejects the attachment of the MTC UE to the MTC. The UE returns an attach reject response; if the mobility management network element receives the indication after the MTC UE attaches to the network (when the MTC Server indicates to attach the MTC UE), the mobility management network element performs a detach process, Attach the MTC UE.
  • the MTC Server can obtain the information of the MTC UE from the underlying access layer, and thus, the MTC Server can judge the behavior of the MTC UE by using the information, and further make a service layer.
  • the MTC Server may request the MME to reject the attach request; when attached to the network When the MTC UE exceeds the allowed access time, or moves to an unallowable location area, or switches to an unallowed network, the MTC Server may request the MME to attach the MTC UE.
  • the MTC Server performs access control on the MTC UE that has been attached to the network, and the MTC Server obtains the MTC UE by querying the MME for information of the MTC UE, or by subscribing to the MME for an event related to the MTC UE. Information.
  • FIG. 14 is a flowchart of the MTC server performing access control on an MTC UE that has been attached to the network according to the embodiment. As shown in FIG. 14, in this embodiment, the MTC server accesses the MTC UE that has been attached to the network. Control mainly includes the following steps:
  • the MTC UE accesses the network
  • the MTC UE initiates a service layer registration with the MTC Server.
  • the MTC Server queries the MME for information about the MTC UE, or subscribes to the MME for an access layer event related to the MTC UE.
  • An access layer event related to the MTC UE occurs. This step occurs after the MTC Server subscribes to the access layer event.
  • the MME returns the information of the queried MTC UE to the MTC Server, or when the MTC Server subscribes to the MME to the access layer event, and the access layer event occurs (S404), the MME notifies the MTC Server of the access layer event;
  • the MTC Server after the MTC Server obtains the information of the MTC UE, or obtains the event notification of the access layer, the MTC Server needs to be in the service management, and determines that the MTC UE needs to be attached;
  • the MTC Server sends a detach request to the MME.
  • the MME After receiving the detach request, the MME performs a detach procedure to attach the MTC UE. S409, the MME sends a detach response to the MTC Server.
  • access control including: controlling the access time, the number of accesses, and the access location of the MTC UE. If the current access of the MTC UE is not within the allowable range, the network should reject the attachment of the MTC UE, or attach the MTC UE, and further issue an indication to the network. When a similar situation occurs, the network may refuse the network. MTC UE attach request.
  • the MME may actively send an attach event to the MTC server when the MTC UE is attached, and the MTC Server determines whether the attach is allowed.
  • This embodiment describes the attach event of the MME to the MTC Server when the MTC UE is attached. The process by which the MTC Server determines whether to allow the MTC UE to attach.
  • FIG. 15 is a flowchart of the embodiment. As shown in FIG. 5, in the embodiment, the MTC Server performs access control on the MTC UE according to the MME actively reporting an attach event, which mainly includes the following steps:
  • the MTC UE sends an attach request to the network, and specifically sends an attach request to the MME.
  • the MME sends a location update to the HSS, in the process, the HSS sends the subscription data of the MTC UE to the MME; S503, the MME attaches an event to the MTC server; in the attach event, the MME may include the attached If thousands of information, for example: access network, access location, access time, etc.
  • S504 After the MTC Server accesses the attach event of the MME, the service management needs to determine that the access of the MTC UE should be denied.
  • S505 The MTC Server sends a reject access indication to the MME.
  • the MME After receiving the reject attachment indication sent by the MTC server, the MME rejects the access of the MTC UE, and returns an attach rejection response to the MTC UE.
  • E-UTRAN E-UTRAN
  • the SGSN in the GERAN/UTRAN network is equivalent to the MME in the E-UTRAN network, acting as the PS.
  • the access control and mobility management functions of the domain, and the GGSN in the GERAN/UTRAN network is equivalent to the SGW+PGW in the E-UTRAN network, and the HLR in the GERAN/UTRAN is equivalent to the HSS in the E-UTRAN network.
  • the MTC Server can obtain the information of the MTC UE of the receiving layer by using the mobility management network element, and then can perform access control on the MTC UE according to the obtained information of the MTC UE.
  • the core network is not required to be improved, and therefore, the complexity of the core network is not increased, and in the embodiment of the present invention, the condition for performing access control on the MTC UE can be saved in the MTC Server, so that the user subscribes to the data.
  • the memory does not need to follow the requirements of the M2M service management to continuously adjust the service subscription data of the MTC UE, thereby ensuring the flexibility of the user to subscribe to the data storage.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

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Description

机器类通讯终端的接入控制方法和系统 技术领域 本发明涉及通信技术领域, 具体而言, 涉及一种机器类通讯 ( Machine Type Communication, 简称为 MTC ) 终端的接入控制方法和系统。 背景技术 在传统的移动网络月艮务中, 人对人 ( Human To Human , 简称为 Η2Η ) 通讯占据了主要的位置。在 Η2Η通讯中, 由于参与的双方为具有行为控制能 力的人, 因此会话实际上由人的行为控制。 随着移动网络服务和自动化控制 技术的发展, 目前, 出现了一种新的移动通讯方式, 即机器对机器( Machine To Machine, M2M ) 的通讯, 在该通讯方式中, 通讯的双方为机器设备。 狭义的 M2M定义是机器到机器的通信, 但从广义上说 M2M 包括以机 器终端智能交互为核心的、 网络化的应用与月艮务。 M2M基于智能机器终端、 以多种通信方式为接入手段, 可以为客户提供的信息化解决方案, 用于满足 客户对监控、 指挥调度、 数据釆集和测量等方面的信息化需求。 M2M 可以 应用于行业应用 (例如, 交通监控、 告警系统、 海上救援、 自动售货机、 开 车付费等)、 家庭应用 (例如, 自动抄表、 温度控制等) 及个人应用 (例如, 生命检测、 远端诊断等) 等。 与人对人通讯的最根本的不同在于, M2M 的通信对象为机器, 通讯行 为是自动化控制的, 即通讯的发起、 通讯的终止、 通讯过程中的一些准入和 限制的控制, 均是自动化的行为。 这种行为, 依赖于 M2M通讯中对机器(即 M2M通讯中的终端)行为的约束和控制, M2M通讯中的终端的行为受业务 签约数据约束, 网络才艮据业务签约数据对 M2M通讯中的终端进行管理。
M2M通讯, 也称为机器类通讯 ( Machine Type Communication, 简称为 MTC ), 最典型的为终端和应用月艮务器之间的通讯, 该终端被称为 MTC终端 ( MTC User Equipment , 简称为 MTC UE ), 应用月艮务器被称为 MTC月艮务器 ( MTC Server )„ 在 2G/3G/LTE接入下, M2M通讯主要以分组 (Packet Service ) 网络作 为底层承载网络, 实现 MTC终端和 MTC服务器之间的业务层通讯。 图 1是 M2M通讯实体接入到演进的分组系统( Evolved Packet System, 简称为 EPS ) 的架构示意图。 在图 1中, 底层承载网络包括: 演进的通用移动通信系统陆地无线接入 网 ( Evolved Universal Terrestrial Radio Access Network, 简称为 E-UTRAN )、 移动管理单元( Mobility Management Entity,简称为 MME ),月艮务网关( Serving Gateway, 简称为 S-GW, 或 SGW ),分组数据网络网关( Packet Data Network Gateway, 简称为 PDN GW, 或 P-GW, 或 PGW)、 归属用户月艮务器 (Home Subscriber Server , 简称为 HSS )、 策略和计费规则功能实体 (Policy and Charging Rules Function, 简称为 PCRF )。 其中, E-UTRAN 的主要网元是 eNodeB ( Evolved NodeB , 基站)。 在图 1 中, MME 负责移动性管理、 非接入层信令的处理、 以及用户移 动管理中上下文的管理等控制面的相关工作; S-GW是与 E-UTRAN相连的 接入网关设备, 在 E-UTRAN和 P-GW之间转发数据, 并且负责对寻呼等待 数据进行緩存; P-GW则是 EPS与分组数据网络 (Packet Data Network, 简 称为 PDN ) 的边界网关, 负责 PDN的接入及在 EPS与 PDN间转发数据等 功能; PCRF是策略和计费规则功能实体, 它通过接收接口 Rx和运营商网络 协议 (Internet Protocol, 简称为 IP ) 业务网络相连, 获取业务信息, 此夕卜, 它还可以通过 Gx接口与网络中的网关设备相连, 负责发起 IP承载的建立, 保证业务数据的服务质量 (Quality of Service, 简称为 QoS ), 并进行计费控 制。 HSS提供用户的签约数据的管理, 和用户接入到网络中的重要的上下文 信息的管理。 在图 1中, MTC UE通过 E-UTRAN ( eNodeB )接入到 EPS网络中, 在 被分配 IP地址后, MTC UE与 MTC Server之间可以建立起 IP通道, 从而实 现与 MTC Server之间的上层业务通讯。 MTC UE与 MTC Server之间所建立 的 IP通道为一条還辑上的 IP通道,其物理路径经过: eNodeB、 S-GW、 P-GW。 目前, 实现 M2M通讯的一种方式是在 MTC UE与 MTC Server之间的 IP 通道上建立一个业务层接口协议, 通过该业务层接口协议, MTC UE 和 MTC Server交互业务数据, 同时, MTC Server也通过该业务层协议实现对 MTC UE的控制。 图 2描述该种方式实现 M2M通讯的流程,如图 2所示,在该方式中 MTC
UE通过分组网络 ( PS 网络)接入, 实现和 MTC Server建立通讯连接主要 包括以下步 4聚:
5201 , MTC UE向 MME发起附着请求;
5202, MME接收上述附着请求, 向 HSS发送位置更新请求, 在该步骤 中, HSS向 MME下载 MTC UE的签约数据, 其中包含用于 M2M接入控制 的签约数据部分;
5203 , MME向 SGW/PGW发送 载创建请求,请求 SGW/PGW为 MTC UE创建合适的^载;
5204 ,如果 PGW需要从 PCC获得策略数据以据此建立合适的承载 , PGW 和 PCC交互以获得 PCC策略; S205 , PGW为 MTC UE创建 载, 返回 载创建响应;
5206, MME向 MTC UE发送附着响应; 步骤 S206后, MTC UE已经附着到 PS网络, 被分配了 IP地址, 并建 立和合适的 载, 从而可以向 MTC Server发起业务层的注册。
5207, MTC UE向 MTC Server发起业务层的注册; S208, MTC Server接受 MTC UE的注册, 返回注册响应;
S209, 后续 MTC UE和 MTC Server之间通过业务层协议交互数据。 通过图 2所示的流程, MTC UE接入到 PS网络, 建立了和 MTC Server 之间的 IP连接, 从而可以实现后续和 MTC Server之间的业务层通讯。 如上所述, 在现有的接入流程中, 由于 MTC Server和底层接入层 (指 MME/SGW/PGW等网元)之间没有任何联系, 因此, MTC Server无法获得 底层接入层发生的事件, 从而无法判断 MTC UE的接入是否正常。 在某些情况下, 需要限制 MTC终端的接入, 只允许 MTC终端在指定的 条件下接入, 如果条件不允许则拒绝 MTC终端的接入。 例如, 在某些 M2M业务中, 由于存在 MTC设备被偷窃和 SIM卡被盗 用的情况, 需要对接入网络中的 MTC 终端设备 -险证其国际用户识别码
( International Mobile Subscriber Identification Number, 简称为 IMSI )和国际 移动设备 i只别码 ( International Mobile Equipment Identity, 简称为 IMEI ) 的 绑定关系。 其中, IMSI存在于 SIM卡上, 是 MTC UE的公开身份标识, 由 运营商分配。 IMEI存在于终端设备上, 在出厂时由生产商设定。 如果限定了 MTC终端设备只能使用特定的 IMSI和 IMEI接入到网络, 则应该在接入网 络时进行判断, 如果 IMSI和 IMEI配对不匹配, 则拒绝 MTC终端设备的接 入。 例如, 在某些 M2M业务中, MTC终端被应用于在固定的位置区域内, 超出这个位置区域将不允许其使用。 此时需要限制 MTC终端的接入位置, 如果接入时在不被允许的位置区域内, 或者接入后移动到不被允许的位置区 域内, 则需要限制其接入到系统。 例如, 在某些 M2M业务中, MTC终端被限制在指定的时间内接入到系 统, 超出这个时间将不允许接入到系统。 此时需要限制 MTC终端的接入时 间, 如果接入时间在不允许的时间段内, 或者接入后超出了所允许的时间, 则需要限制其接入到系统。 由于 MTC 艮务器属于业务层功能实体,无法获取和 MTC终端相关的底 层接入层信息, 从而无法判断 MTC终端是否满足指定的接入条件。 因此, 目前只能在接入层对 MTC终端的接入行为进行控制, 例如在 E-UTRAN接 入下, 由 MME来控制。 但是, 由 MME进行控制需要 MME 4十对各种的管 理需求做对应的检查和判断, 由于不同类型的 M2M业务的复杂性, 对 MTC 终端的接入验证种类反对, MME 均需要实现这些需求, 这样将极大增加核 心网的复杂度。 对于月艮务于大量用户、 同时月艮务于非 M2M业务的 MME而 言, 也带来了很大的不稳定隐患。 发明内容 针对现有技术中需要由接入层对 MTC终端的接入控制而导致核心网的 复杂度增加的问题而提出本发明, 为此, 本发明的主要目的在于提供一种改 进的 M2M终端的接入控制方案, 以解决上述问题至少之一。 为了实现上述目的, 根据本发明的一个方面, 提供了一种 MTC终端的 接入控制方法。 才艮据本发明的 MTC终端的接入控制方法包括: MTC 艮务器通过移动性 管理网元获取当前请求附着到网络或当前已附着到网络的 MTC终端的信息; MTC服务器根据 MTC终端的信息判断不允许 MTC终端接入, 向移动性管 理网元发送拒绝 MTC终端接入的指示; 移动性管理网元接收指示, 才艮据指 示拒绝 MTC终端接入到网络。 为了实现上述目的, 居本发明的另一方面, 提供了一种 MTC终端的 接入控制系统。 根据本发明的 MTC终端的接入控制系统包括: 用户签约数据存储器、 移动性管理网元和 MTC服务器。 其中, 用户签约数据存储器, 用于保存系 统内的 MTC终端的签约数据; 移动性管理网元, 与用户签约数据存储器连 接, 用于接收用户签约数据存储器下发的当前请求附着到网络或当前已附着 到网络的 MTC终端的签约数据, 并向 MTC服务器提供 MTC终端的信息; MTC服务器, 与移动性管理网元连接, 用于根据 MTC终端的信息, 判断是 否允许 MTC终端接入, 并在不允许 MTC终端接入的情况下, 向移动性管理 网元发送拒绝 MTC终端接入的指示,以使移动性管理网元拒绝 MTC终端接 入到网络。 通过本发明, MTC月艮务器通过移动性管理网元获取 MTC终端的信息, 并才艮据该 MTC终端的信息判断是否允许该 MTC终端接入, 因而可以通过 MTC服务器对 MTC终端进行接入控制, 从而解决了现有技术中需要由接入 层对 MTC终端的接入控制而导致核心网的复杂度增加的问题, 进而不需要 增力口核心网的复杂度。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的 不当限定。 在附图中: 图 1是相关技术中 M2M通讯实体接入到 EPS的架构示意图; 图 2是相关技术中 MTC UE通过 PS网络接入并与 MTC月艮务器建立通 讯连接的流程图; 图 3是根据本发明实施例的 MTC UE的接入控制系统结构示意图; 图 4是才艮据本发明实施例一的 MTC UE通过 EPS系统接入实现 M2M通 讯的架构图; 图 5是才艮据本发明实施例二的 MTC UE通过 GPRS系统接入实现 M2M 通讯的架构图; 图 6为根据本发明实施例的 MTC终端的接入控制方法的流程图; 图 7为本发明实施例中一种 MME主动向 MTC Server上 4艮 MTC UE的 信息的流程图; 图 8为发明本实施例中另一种 MME主动向 MTC Server上 4艮 MTC UE 的信息的流程图; 图 9为本发明实施例中 MTC Server通过 MTC UE的 GUTI获取为该 MTC UE分配的 MME的地址的流程图; 图 10为本发明实施例中 MME主动通 ^口 MTC Server该 MME的地址的 流程图; 图 11为本发明实施例中 MTC Server通过 HSS获取为 MTC UE分配的 MME的地址的 ¾ϊ程图; 图 12为本发明实施例中 MTC Server通过向 MME发送查询请求获取
MTC UE的信息的流程图; 图 13为本发明实施例中 MTC Server向 MME订阅 MTC UE的相关事件 获取该 MTC UE的信息的流程图; 图 14为才艮据本发明实施例三的流程图; 图 15为才艮据本发明实施例四流程图。 具体实施方式 现有技术中, 无论 MTC UE通过 EPS网络接入实现 M2M通讯, 还是通 过 GPRS网络接入实现 M2M通讯, MTC月艮务器均无法获知 MTC UE的接 入层 /承载层的相关信息, 因此, 只能由接入层对 MTC UE的接入进行控制, 从而将增加核心网的复杂度,针对该问题,本发明实施例提供了一种 MTC UE 的接入控制方案。 在本发明实施例中, MTC 服务器与移动性管理网元 (在 MTC UE接入到 E-UTRAN网络时为 MME,在 MTC UE接入到 GSM/EDGE 无线接入网络( GSM/EDGE Radio Access Network,简称为 GERAN VUTRAN 网络时为月艮务通用分组无线业务支撑节点 ( Serving General packet radio service support node, 简称为 SGSN ) )相连, MTC月艮务器通过移动性管理网 元获取 MTC UE的接入层 /承载层等相关信息, 并根据该 MTC UE的信息对 该 MTC UE进行接入控制。 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互组合。 才艮据本发明的实施例, 提供了一种 MTC终端的控制系统。 图 3为根据本发明实施例的 MTC终端的接入控制系统的结构示意图, 如图 3所示, 根据本发明实施例的 MTC终端的接入控制系统主要包括: 用 户签约数据存储器 1、 移动性管理网元 3和 MTC服务器 5。 下面分别对上述 各个网元进行描述。 其中,用户签约数据存储器 1 ,用于保存系统内的 MTC终端的签约数据; 移动性管理网元 3 , 与用户签约数据存储器 1连接, 用于接收用户签约 数据存储器 1下发的当前请求附着到网络或当前已附着到网络的 MTC终端 的签约数据, 并向 MTC服务器 5提供该 MTC终端的信息; 在具体应用中, 在 MTC UE请求附着到网络时, MTC UE ^!夺向移动性管 理网元 3发送附着请求,移动性管理网元 3在接收到 MTC UE的附着请求后, 向用户签约数据存储器 1发送位置更新请求, 用户签约数据存储器 1在接收 到位置更新请求后, 向移动性管理网元 3下发该 MTC UE的签约数据, 移动 性管理网元 3接收并存储该签约数据。 并且, 在 MTC UE附着到网络后, 如 果该 MTC UE的签约数据发生变化,则用户签约数据存储器 1将向移动性管 理网元 3下发更新后的该 MTC UE的签约数据。 MTC月艮务器 5 , 与移动性管理网元 3连接, 用于才艮据移动性管理网元 3 提供的上述 MTC终端的信息, 判断是否允许该 MTC终端接入, 并在不允许 该 MTC终端接入的情况下,向移动性管理网元 3发送拒绝该 MTC终端接入 的指示, 以使移动性管理网元 3拒绝该 MTC终端接入到网络。 而移动性管 理网元 3在接收到来自 MTC服务器 5的指示后,如果当前 MTC终端是请求 附着到网络, 则拒绝该 MTC终端的附着请求, 向 MTC终端返回拒绝附着响 应; 如果当前 MTC终端已附着到网络, 则移动性管理网元 3发起去附着流 程, 去附着该 MTC终端。 在本发明实施例中, 在现有架构上, 增加 MTC服务器 5和移动性管理 网元 3之间的接口, 以使 MTC服务器 5和移动性管理网元 3之间可以进行 通信。 进一步地, 如图 3所示, MTC服务器 5还可以直接与用户签约数据存储 器 1连接, 即 MTC服务器 5与用户签约数据存储器 1之间存在相互连接的 接口, 从而使得 MTC服务器 5可以从用户签约数据存储器 1获取 MTC UE 的签约数据、 或为 MTC UE分配的移动性管理网元 3的地址。 例如, 在 MTC UE附着到网络后, MTC UE通过网络向 MTC月艮务器 5 发起注册, MTC服务器 5在接收到注册请求后, 可以通过与用户签约数据存 储器 1之间的接口, 获取为该 MTC UE分配的移动性管理网元 3的地址, 然 后可以通过获取的移动性管理网元 3的地址, 从与该地址对应的移动性管理 网元 3中获取该 MTC UE的信息。 优选地, 在 MTC UE接入到 E-UTRAN网络时, 上述用户签约数据存储 器 1为 HSS ,移动性管理网元 3为 MME;在 MTC UE接入到 GERAN/UTRAN 网络时, 用户签约数据存储器 1为 HLR, 移动性管理网元 3为 SGSN。 下面通过具体实施例对本发明实施例提供的上述系统进行说明。 实施例一 本实施例以 MTC UE 利用 EPS 系统实现接入 (即 MTC UE 接入到
E-UTRAN网络) 为例进行说明。 图 4为本实施例中 MTC UE通过 EPS系统接入实现 M2M通讯的架构图, 如图 4所示, 在本实施例中, MTC服务器与 MME之间实现了连接, 以便 MTC服务器从 MME获得 MTC UE的底层接入层 /承载的信息,以控制 MTC UE的接入。 如图 4所示, 在本实施例中, MTC Server和 MME建立了接口, 为了方 便描述,在本实施例中将该接口称之为 M2M-MME。通过该接口, MTC Server 可以向 MME查询或订阅与某个 MTC UE相关的信息或底层接入层的事件, 口: MTC UE附着到 PS网络、 MTC UE从 PS网络去附着、 MTC UE在 PS 网络中发生了位置移动等事件。或者,通过该接口, MME可以将与某个 MTC UE相关的底层接入层的事件,主动通知给 MTC Server。从而使得 MTC Server 可以获得 MTC UE的底层接入层信息,并根据这些接入层信息判断 MTC UE 是否允许接入, 从而执行对该 MTC UE的接入控制。 可选地, 在该架构中, 可以在 MTC Server与 HSS之间建立接口, 为了 方便描述,本实施例中将该接口称之为 M2M-HSS。通过该接口, MTC Server 可以从 HSS查询到 MTC UE的签约数据, 根据这些签约数据, MTC Server 可以判断 MTC UE当前接入是否有违反业务签约的行为出现,进而可以执行 对 MTC UE的接入控制。 或者, 通过该接口, MTC Server可以从 HSS查询 到为 MTC UE分配的 MME的地址,然后通过该 MME获取 MTC UE的信息。 在具体应用中, 如果 MTC Server和 HSS之间不建立 M2M-HSS接口, MTC Server可以通过与 MME之间的 M2M-MME接口, 获得 MME中保存 的 MTC UE的签约数据。 并且, MTC Server可以主动向 MME查询 MTC UE 的签约数据;或者,也可以由 MME主动将 MTC UE的签约数据发送给 MTC Server。 实施例二 本实施例以 MTC UE接入到 GERAN/UTRAN网络为例进行说明。 图 5为本实施例中 MTC UE通过 GERAN/UTRAN网络接入实现 M2M 通讯的架构图, 如图 5所示, 本实施例基本与上述实施例一相似, 不同之处 在于, GERAN/UTRAN网络中的 SGSN相当于 E-UTRAN网络中 MME, 用 于实现 PS域的接入控制和移动性管理功能,而 GERAN/UTRAN网络中的网 关 GPRS支持节点 (Gateway GPRS Support Node, 简称为 GGSN )相当于 E-UTRAN 网络中的 SGW 和 PGW, GERAN/UTRAN 中的 HLR 相当于 E-UTRAN 网络中的 HSS。 其具体连接及各个网元的功能与上述系统实施例 一相似, 在 匕不再赘述。 根据本发明实施例, 还提供了一种 MTC UE的接入控制方法, 该方法可 以通过根据本发明实施例提供的上述系统实现。 图 6为根据本发明实施例的 MTC UE的接入控制方法的流程图, 如图 6 所示, 才艮据本发明实施例的 MTC UE的接入控制方法主要包括以下步 4聚 (步 骤 S601 -步骤 S605 ): 步骤 S601 : MTC服务器通过移动性管理网元获取当前请求附着到网络 或当前已附着到网络的 MTC终端的信息; 步骤 S603: MTC服务器根据上述 MTC终端的信息判断不允许该 MTC 终端接入, 向移动性管理网元发送拒绝该 MTC终端接入的指示; 步骤 S605 : 移动性管理网元接收上述指示, 根据该指示拒绝上述 MTC 终端接入到网络。 下面进一步对上述各步骤的处理进行说明。 一、 步骤 S601 在具体实施过程中, MTC Server通过移动性管理网元获取 MTC UE的 信息主要是通过移动性管理网元上报获取的, 具体地, 该步骤的执行可以包 括以下两个步 4聚: 步骤 1 , 移动性管理网元向 MTC服务器上报 MTC终端的信息; 步骤 2 , MTC服务器获取移动性管理网元上报的 MTC终端的信息。 在具体实施过程中,移动性管理网元向 MTC月艮务器上 4艮 MTC终端的信 息包括但不限于以下三种方法:
(一 )移动性管理网元主动向 MTC Server上 4艮 具体地, 移动性管理网元可以在某个 MTC UE的接入层 载层事件发 生时, 主动通知 MTC Server, 或者, 移动性管理网元主动向 MTC Server上 报某个 MTC UE的信息。 (二) MTC Server向移动性管理网元查询
MTC Server向移动性管理网元查询 MTC UE的信息, 移动性管理网元 接收到 MTC Server的查询请求后,向 MTC Server上 4艮所对应的 MTC UE的 信息。
(三) MTC Server向移动性管理网元订阅 MTC UE的相关事件通知 MTC Server向移动性管理网元订阅与某一 MTC UE相关的接入层 / 载 层事件,移动性管理网元在订阅的接入层 /承载层事件发生时,主动通知 MTC Server, 通知中包含有对应的 MTC UE的信息。 下面分别对上述三种获取 MTC UE 信息的方法进行描述。 需要说明的 是, 上述三种方法可以分开使用, 也可以两两或三者结合使用。
(一 )移动性管理网元主动向 MTC Server上 4艮 具体地, 移动性管理网元主动向 MTC Server上 4艮 MTC UE的信息时, 移动性管理网元是根据从用户签约数据存储器获取的该 MTC UE 的签约数 据中携带的指示, 主动向 MTC Server上 4艮 MTC UE的信息。 具体地, 移动 性管理网元从用户签约数据存储器中获取该 MTC UE的签约数据包括: 指示 移动性管理网元向 MTC Server上报 MTC UE的指示信息 (具体可以指示包 括上报的时机、 上报的参数等信息)、 为该 MTC UE服务的 MTC Server的信 息。 移动性管理网元从获取的 MTC Server的信息中可以解析得到为该 MTC UE月艮务的 MTC Server的地址,从而将该 MTC UE的信息上 4艮给 MTC Server, 在具体实施过程中,移动性管理网元可以在 MTC UE发起附着请求时主 动向 MTC Server上 4艮该 MTC UE的信息,也可以在 MTC UE附着到网络后, 在与该 MTC UE相关的接入层 /承载层事件发生时, 主动向 MTC Server上报 事件通知, 在事件通知中携带 MTC UE的当前信息。 下面以移动性管理网元为 MME 为例, 对 MME 在这两种上 4艮时机向 MTC Server进行上报的流程进行说明。
( 1 )在 MTC UE发起附着请求时, MME主动向 MTC Server上 4艮 MTC UE的信息 图 7为在这种情况下, MME主动向 MTC Server上 4艮 MTC UE的信息的 流程图,如图 7所示,在 MTC UE发起附着请求时, MME主动向 MTC Server 上报 MTC UE的信息主要包括以下步骤:
S701 , MTC UE向 MME发起附着请求; S702, MME向 HSS发送位置更新请求;
S703 , HSS向 MME返回位置更新响应, 在该位置更新响应携带有 MTC UE的签约数据, 该签约数据中包含: 指示 MME向 MTC Server上报该 MTC UE的信息的指示信息、 为该 MTC UE月艮务的 MTC Server的信息 (具体地, 该信息可以为 MTC Server的地址, 也可以为 MTC Server的标识等信息);
5704, MME根据为该 MTC UE服务的 MTC Server的信息解析出该 MTC Server的地址;
5705 , MME才艮据解析得到的 MTC Server的地址, 向该 MTC Server上 报上述 MTC UE的信息。
( 2 )在 MTC UE附着到网络后, MME主动向 MTC Server上 4艮 MTC UE 的信息 图 8为在这种情况下, MME主动向 MTC Server上 4艮 MTC UE的信息的 流程图, 如图 8所示, 在 MTC UE附着到网络后, MME主动向 MTC Server 上 4艮 MTC UE的信息主要包括以下步骤:
S801 , MTC UE附着到 PS网络; 在 MTC UE附着到 PS网络的过程中, MME从 HSS处获得了 MTC UE 的签约数据, 其中包括用于 M2M业务部分的签约数据。 在该 M2M业务签 约数据中, 包含为该 MTC UE月艮务的 MTC Server的地址、 请求 MME主动 向 MTC Server上报与该 MTC UE相关的预定事件的指示, 即请求 MME在 该 MTC UE发生预定事件时, 向 MTC Server发送事件通知; 其中, 上述预定事件为与该 MTC UE相关的接入层 /承载层事件, 具体 地, 上述预定事件包括但不限于以下之一或其任意组合:
( 1 ) MTC UE的签约数据发生变化; 当 HSS变更 MTC UE的签约数据 后, HSS需要向 MME重新下发新的签约数据, MME收到新的签约数据后, 可以通知 MTC Server 该签约数据有变化、 或直接将新的签约数据发送给 MTC Server;
( 2 ) MTC UE的^!大态变 4匕; 例如, MTC UE附着到网络、 MTC UE从 网络去附着、 MTC UE由连接态变更为空闲态、 MTC UE由空闲态变更为连 接态;
( 3 ) MTC UE的位置区 i或的变化; 例如, MTC UE发生了位置移动等, 在 MTC UE发生位置移动时, MTC UE会向 MME发送了位置更新消息, 从 而使得 MME能捕获到 MTC UE发生了位置移动; ( 4 ) MTC UE的网络变化; 例如, MTC UE发生了基站、 网络的切换, 在这种情况下, MTC UE会向 MME发送切换消息, 从而使得 MME可以捕 获到 MTC发生的网络变化事件;
( 5 ) MTC UE的 IMSI、 IMEI关系发生变化; 例如, 在签约数据中规定 了 MTC UE应该使用的 IMSI和 IMEI的配对关系, 但是当前 MTC UE更换 了终端, 如将 SIM卡换到非 MTC终端上。 在这种情况下, MTC Server需要 获得 MTC UE所使用的 IMSI、 IMEI配对。
5802 , 上述预定事件, 即与 MTC UE相关的接入层 /承载层事件发生;
5803 , MME主动向 MTC Server通知该预定事件的发生, 具体地, MME 向 MTC Server发送的事件通知中包含有 MTC UE的当前信息。 需要指出的是, 在图 8所示的流程中, S802 的接入层 /承载层事件, 可 能发生在步 4聚 S801中,例如,该事件是一个附着事件,则 MME应该在 MTC UE附着到网络时向 MTC Server发送事件通知。 具体地,在上述图 7和图 8的流程中, MME向 MTC Server上 4艮的 MTC UE的信息包括但不限于以下之一或其任意组合:
A) MME从 HSS处获得的 MTC UE当前业务签约数据;
B) MTC UE所使用的 IMSI、 IMEI; 其中, MTC所使用的 IMSI是 MTC
UE在附着到网络时发送的附着消息中携带的, 而 IMEI则可能是 MTC UE 在附着时由提供给网络的, 也可能是网络根据需要的向 MTC UE 查询获得 的;
C) MTC UE在 MME上的上下文信息,例如, MTC UE的当前位置区域、 MTC UE当前的 态; 其中, MTC UE的当前位置区域可以是: MTC UE的 艮踪区域 ( Tracking Area, 简称为 TA )、 MTC UE当前的 Cell小区, 而 MTC UE当前的状态可能 是附着状态、 去附着状态、 连接状态、 空闲状态等中的一种。
D)该 MTC UE当前所发生的移动性事件, 例如, MTC UE附着到网络、 MTC UE从网络去附着、 MTC UE位置更新、 MTC UE发生基站切换、 MTC UE发生网络切换等。 (二 ) MTC Server向移动性管理网元查询 具体地, 在 MTC UE附着到网络后, MTC Server向移动性管理网元发 送查询请求, 请求查询该 MTC UE的信息, 移动性管理网元在接收到该查询 请求后, 向 MTC Server上报该 MTC UE的信息。 在具体实施过程中, 在 MTC Server向移动性管理网元发送查询请求之 前, MTC Server首先需要获取为 MTC UE分配的移动性管理网元的地址, 然后才艮据该地址, 向为该 MTC UE 分配的移动性管理网元发送上述查询请 求。 在具体实施过程中, MTC Server获取为 MTC UE分配的移动性管理网 元的地址包括但不限于以下三种方法:
( 1 ) MTC Server获取 MTC UE发送的注册消息中携带有为该 MTC UE 分配的移动性管理网元的标识信息, 从该标识信息中解析出该移动性管理网 元的标识信息; 例如, 在 EPS网络中, MTC UE在向 MTC Server发送的注册消息中可 以携带网络为该 MTC UE 的全球唯一临时标识 (Global Unique Temporary Identity, 简称为 GUTI ), 而 GUTI中包含有为 MTC UE分配的 MME的 ID 信息, 通过解析 GUTI, MTC Server可以获取为该 MTC UE分配的移动性管 理网元的地址;
( 2 )为 MTC UE分配的移动性管理网元主动向 MTC Server通知其地址; ( 3 ) MTC Server通过其与用户签约数据存储器之间的接口, 从用户签 约数据存储器获取为 MTC UE分配的移动性管理网元的地址。 下面以 E-UTRAN网络为例, 分别对上述三种移动性管理网元的地址的 获取方法进行说明。
( 1 )从 MTC UE发送的注册消息中解析得到 图 9为具体应用中 MTC Server通过解析 MTC UE的 GUTI获取为该
MTC UE分配的 MME的地址的流程图, 如图 9所示, MTC Server通过解析 MTC UE的 GUTI获取为该 MTC UE分配的 MME的地址主要包括以下步骤: 5901 , MTC UE附着到 PS网络, 在附着过程中网络为 MTC UE分配了 一个 GUTI, 该 GUTI携带在附着响应中发送给 MTC UE; 通过解析 GUTI的构成可知, GUTI中包含有为 MTC UE分配的 MME 的 ID信息, 才艮据该 MME ID, MTC Server可以寻址到为该 MTC UE分配的 MME。
5902, MTC UE在接入到 PS网络后, 向 MTC Server发起应用层注册的 注册消息, 其中, 该注册消息中携带有上述 GUTI信息;
5903 , MTC Server根据注册消息中携带的 GUTI信息,解析得为 MTC UE 分配的 MME的地址, 才艮据解析得到的 MME的地址, MTC Server可以在需 要的情况下, 向该 MME发送查询请求, 以查询该 MTC UE的信息;
5904, 如果 MTC Server与 HSS之间存在接口, 则 MTC Server向 HSS 查询 MTC UE的签约数据。
5905 , 如果 MTC Server根据业务数据判断允许 MTC UE注册, 则返回 注册响应。 在该注册响应中, 可能携带若千的业务层参数给 MTC UE。 ( 2 ) 为 MTC UE分配的 MME主动向 MTC Server通 口其地址 图 10为 MME主动通知 MTC Server该 MME的地址的流程图, 如图 10 所示, 在具体应用中, MME主动通知该 MME的地址主要包括以下步 4聚:
S 101 , MTC UE 向网络发送附着请求, 具体地, MTC UE 向网络中的 MME发送附着请求; S 102, MME向 HSS发送位置更新请求;
5103 , HSS向 MME发送位置更新响应; 在该过程中, HSS向 MME下发 MTC UE的签约数据, 其中包括 M2M 签约数据, 在 M2M签约数据中, 包含了服务于该 MTC UE的 MTC Server 的标识信息, 该标识信息可能是 MTC Server域名, 也可能是 MTC Server的 IP地址, MME才艮据该标识信息可以解析得对应的 MTC Server的地址。
5104 , MME指示 SGW/PGW为该 MTC UE创建合适的承载; 5105 , MME向 MTC UE发送附着响应;
5106, MME向 MTC Server发送通知消息,将该 MME的地址告知 MTC Server; 具体地,上述通知消息可以是一个独立的通知消息,也可以存在于 MME 向 MTC Server发送的其他消息中(例如,在 MTC UE附着时, MME向 MTC Server发送一个附着事件上 ·ί艮, 在该事件上 ·ί艮中携带上述通知消息)。 在该通知消息包含但不限于以下信息: MTC UE的标识和 /或 MTC UE 的 IP地址, 以及该 MME的标识和 /或该 MME的 IP地址。 才艮据 MTC UE和 MME的信息的对应关系, MTC Server可以获知为 MTC UE分配的 MME的 地址信息。 通过上述步骤, MTC Server可以获取到为 MTC UE分配的 MME的地址 信息,从而可以在需要获取该 MTC UE的接入层 /承载层的信息时,向该 MME 发送查询请求。
5107, MTC UE向 MTC Server发送业务层的注册请求, 注册成功。 在图 10所示的流程中, 需要指出的是, 上述步骤 S 106, 可以在上述步 骤 S 105后执行, 也可以在上述步骤 S 103后执行。
( 3 ) MTC Server通过 HSS获取为 MTC UE分配的 MME的地址 在这种情况下, MTC Server 与 HSS 之间存在相互连接的接口, MTC Server可以通过该接口直接与 HSS时进行通信。 图 11为 MTC Server通过 HSS获取为 MTC UE分配的 MME的地址的流程图,如图 11所示, MTC Server 通过 HSS获取为 MTC UE分配的 MME的地址主要包括以下步骤:
S ill , MTC UE附着到 PS网络; 在 MTC UE 附着到网络的过程中, HSS 中保存了为 MTC UE分配的 MME的地址。 S 112, MTC UE向 MTC Server发起业务层注册;
S 113 , MTC Server向 HSS查询为 MTC UE分配的 MME的地址; S 114, HSS向 MTC Server返回为 MTC UE分配的 MME的地址; 至此, MTC Server获取到网络为 MTC UE分配的 MME的地址。
S I 15 , MTC Server向 MTC UE发送注册响应。 在图 11所示的流程中,需要指出的是, MTC Server向 HSS查询为 MTC UE分配的 MME的地址, 可以是: MTC Server向 HSS查询 MTC UE的签约 数据, HSS在返回 MTC UE的签约数据的同时,返回给 MTC UE分配的 MME 的地址; 也可以是: MTC Server向 HSS查询为 MTC UE分配的 MME的地 址, HSS仅返回为 MTC UE分配的 MME的地址。
MTC Server在获取到为 MTC UE分配的移动性管理网元的地址后, MTC Server可以在需要的时候, 向该移动性管理网元发送上述查询请求, 具体地, MTC Server 确定需要向移动性管理网元发送查询请求的情况包括但不限于 以下之一:
( A ) MTC Server需要获知 MTC UE所使用的 IMSI、 IMEI, 以检测为 MTC UE配备的 SIM卡是否被盗用, 即判断 IMSI、 IMEI绑定关系是否正常; ( B ) MTC Server需要获知 MTC UE的当前的位置信息 (例如, TA区 域、 Cell小区等), 以判断 MTC UE是否在不被允许的位置区域接入;
( C )MTC Server需要获知 MTC UE的当前的位置信息,以判断 MTC UE 是否移动到不被允许的位置区域;
( D ) MTC Server需要判断 MTC UE是否在不被允许的时间接入; ( E ) MTC Server需要判断 MTC UE接入到网络的时间是否超过预定时 长。 具体地, 以 E-UTARN网络为例, 图 12为 MTC Server向 MME发送查 询请求, 以获取 MTC UE的接入层 /承载层的信息的流程图, 如图 12所示, MTC Server向 MME发送查询请求,获取 MTC UE的信息主要包括以下步 4聚: S211 , MTC UE附着到 PS网络;
S212, MTC UE向 MTC Server发起业务层注册; S213 , 当 MTC UE注册到 MTC Server后, 如果 MTC Server出于业务控 制的目的, MTC UE决定需要查询 MTC UE的当前信息(主要指接入层信息); 在该步骤中, MTC Server可能出于多种可能目的需要获得 MTC UE的 信息, 例 ¾口: MTC Server希望得知 MTC UE所使用的 IMSI、 IMEI情况, 以检 -险为
MTC UE所配备的 SIM卡是否被盗用, 即 IMSI、 IMEI绑定关系是否正常; 或者,
MTC Server希望得知 MTC UE的当前的位置信息(如 TA区域、 Cell小 区等), 以判断 MTC UE是否在不被允许的位置区域接入, 或者是否移动到 不被允许的位置区域;
5214, MTC Server向 MME发送查询请求以查询 MTC UE的信息;
5215 , MME才艮据 MTC UE的当前上下文, 返回 MTC UE的当前信息。 通过步骤 S213 - S215 , MTC Server从 MME处获得了 MTC UE的当前 信息, 从而可以才艮据 MTC UE的当前信息, 判断 MTC UE的当前行为, 进 一步可对 MTC UE的行为做出控制。 具体地, 在上述步骤 S213中, MTC Server向 MME请求的 MTC UE的 信息包括但不限于以下之一或其任意组合:
A) MME从 HSS处获得的 MTC UE当前业务签约数据。
B) MTC UE所使用的 IMSI、 IMEI; 具体地, MTC UE所使用的 IMSI 是 MTC UE在附着到网络时在附着消息中必须携带的, MME可以从附着消 息中获取 MTC UE使用的 IMSI , 而 IMEI则可能是 MTC UE在附着时提供 给网络的, 也可能是网络根据需要的向 MTC UE查询获得的。
C) MTC UE在 MME上的上下文信息, 例如, MTC UE的当前位置区域 (这些位置区域可以是: TA区域、 Cell小区)、 MTC UE当前的状态 (如: MTC UE当前是附着状态、 连接状态、 空闲状态等)。
(三 ) MTC Server向移动 '1"生管理网元订阅 MTC UE的相关事件通 口 由于业务管理的需要, MTC Server需要及时获知底层接入层 载层发 送的事件 (如 MTC UE从网络附着、 去附着、 位置变更等), 并根据这些事 件做出相应的决策, 以控制 MTC UE的行为, 因此, MTC Server可以向移 动性管理网元订阅这些接入层 /承载层事件,移动性管理网元则在相应的接入 层 /承载层事件发生时, 及时向 MTC Server上报事件通知, 该事件通知中携 带有 MTC UE的当前信息。 在该种情况下, MTC Server的处理与上述 (二)的处理基本相同, MTC Server在向移动性管理网元发送订阅 MTC UE的相关事件的查询请求前, 也 需要获取为该 MTC UE 分配的移动性管理网元的地址, 具体方法与上述相 同, 在此不再赞述。 与上述(二)的区别在于, MTC Server向移动性管理网元发送的查询请 求是用于订阅 MTC UE的相关事件的, 即请求移动性管理网元在与 MTC UE 相关的接入层 载层事件发生时, 向 MTC Server上 4艮事件通知。 图 13为以 E-UTRAN网络为例, MTC Server向 MME订阅 MTC UE的 相关事件, 以获取该 MTC UE的信息的流程图, 如图 13所示, MTC Server 向 MME订阅 MTC UE的相关事件,以获取该 MTC UE的信息主要包括以下 步骤:
5311 , MTC UE附着到 PS网络;
5312, MTC UE向 MTC Server发起业务层注册;
5313 , 当 MTC UE注册到 MTC Server后, 根据业务管理的需要, MTC Server需要及时获知底层接入层 载层发生的与该 MTC UE相关的事件,因 此, 决定向 MME订阅这些事件;
5314, MTC Server向 MME订阅与 MTC UE相关的接入层 载层事件; 需要明确的是, MTC Server可以一次仅订阅一个或一类接入层 /承载层 事件, 也可以一次订阅多个或多类接入层 /承载层事件。 S315 , 与 MTC Server所订阅的对应的接入层 /承载层事件发生;
S316, MME在接入层〃 载层事件发生后, 主动向 MTC Server上 4艮这 些接入层 /承载层事件的情况。 在图 13所示的流程中, MTC Server向 MME所订阅的与 MTC UE有关 的接入层 /承载层事件发生, 可以是如下事件中的一种或若千种:
A) MTC UE的签约数据的变化; 当 HSS变更 MTC UE的签约数据后, HSS需要向 MME重新下发新的签约数据, MME收到新的签约数据后, 可 以通知 MTC Server该签约数据有变化、 或直接将新的签约数据发送给 MTC Server;
B) MTC UE的状态变化; 例如, MTC UE附着到网络、 从网络去附着、 由连接态变更为空闲态、 由空闲态变更为连接态, 等;
C) MTC UE的位置区域的变化; 例如, MTC UE发生了位置移动等, 向 MME发送了位置更新消息, 等;
D) MTC UE的网络变化; 例如, MTC UE发生了基站、 网络的切换, 向 MME发送了切换消息等。 在具体实施过程中, 上述(二)、 (三)所述的获取 MTC UE的方法可以 单独使用, 也可以结合使用。 具体地, 在上述图 12 所示的流程中, 在步骤 S213中 MTC Server向 MME请求的 MTC UE的信息中可以进一步包括:
E)该 MTC UE所发生的移动性事件, 例如, MTC UE附着到网络、 MTC UE从网络去附着、 MTC UE位置更新、 MTC UE发生基站切换、 MTC UE 发生网络切换等。 则在上述事件发生时, MME将向 MTC Server发送事件通知, 从而使 MTC Server获知该 MTC UE当前发生的事件,以及该 MTC UE的当前信息。
MTC Server也可以在图 12的步骤 S215后, 获取到 MTC UE的当前信 息后, 进一步执行图 13中的步骤 S313及其之后的步骤, 或者, 在上述步骤 S212后, 同时执行步 4聚 S213和步骤 S313 , 以订阅 MTC UE的相关事件, 从 而在这些事件发生时, 通过 MME上艮的事件通知, 获知这些事件的发生, 并进一步获取 MTC UE的当前信息。 如上所述, 在本发明实施例中, MTC Server可以从移动性管理网元获得
MTC UE的信息,具体地可以是 MTC UE的签约数据、 MTC UE的当前状态、
MTC UE的位置区域信息等。获得 MTC UE信息的方式,可以是 MTC Server 主动向移动性管理网元查询, 也可以是 MTC Server向移动性管理网元订阅 相关的事件后, 移动性管理网元在事件发生时通知 MTC Server, 或者可以是 移动性管理网元才艮据 MTC UE的签约数据中的指示, 主动将接入层 载层 事件通知给 MTC Server。
二、 步骤 S603 在具体应用中, MTC Server可以通过从移动性管理网元获取底层接入层
/承载层的 MTC UE的信息, 判断 MTC UE是否满足预定条件, 从而判断是 否允许 MTC UE接入, 并在判断不允许 MTC UE接入的情况下, 向移动性 管理网元发送拒绝该 MTC UE接入的指示, 以控制 MTC UE的接入。 具体地, 上述预定条件包括但不限于以下之一或其任意组合: 允许 MTC UE接入的时间、允许 MTC UE接入的位置区域、允许 MTC UE使用的 IMSI 与 IMEI的绑定关系、 允许 MTC UE附着的网络、 允许 MTC UE接入的次数 等。 在具体实施过程中,上述预定条件可以作为 MTC UE的签约数据保存在 用户签约数据存储器中, 也可以保存在 MTC Server中。 例如, 如果预定条件中某一个条件为: MTC UE在一个月的时间内接入 的时长不超过为 24小时, 则可以由用户签约数据存储器将规则作为该 MTC UE的签约数据保存,由 MTC Server记录该 MTC UE在一个月内接入的总时 长, 具体地, MTC Server可以从移动性管理网元中获取该 MTC UE的签约 数据,并根据接收到的附着事件通知与去附着事件通知的时间差来计算 MTC UE每次接入的时长, 并根据该时长, 记录该 MTC UE在该月已接入的总时 长, 并据此判断该 MTC UE在该月接入的总时长是否超过 24小时, 从而在 下次接入接收到附着事件通知时, 判断是否不允许该 MTC UE接入。 同样, 对于其它的预定条件, MTC Server也可以根据该 MTC UE的当 前信息进行判断, 具体判断过程可以 居具体的条件进行。 具体地, MTC Server在包括但不限于以下之一或其任意组合的情况下判断不允许 MTC UE 接入:
( 1 ) 判断 MTC UE在非允许时间请求附着到网络;
( 2 ) 判断 MTC UE在非允许位置区域请求附着到网络;
( 3 ) 判断 MTC UE超过允许接入的次数; ( 4 )判断 MTC UE以不被允许的 IMSI与 IMEI的绑定关系请求附着到 网络;
( 5 ) 判断 MTC UE移动到不允许的位置区域;
( 6 ) 判断 MTC UE附着到网络的时间超出了所允许的接入时间; ( 7 ) 判断 MTC UE切换到不允许的网络。 进一步地, 如果 MTC Server是在 MTC UE在请求附着的时候判断不允 许该 MTC UE接入, 则 MTC Server向移动性管理网元发送拒绝该 MTC UE 附着的指示; 而如果 MTC Server是在 MTC UE已附着到网络后判断不允许 该 MTC UE接入, 则 MTC Server向移动性管理网元发送去附着该 MTC UE 的指示。 三、 步 4聚 S605 在具体实施过程中, 移动性管理网元在接收到步骤 S603中 MTC Server 发送的上述指示后, 根据该指示, 执行相应的操作。 具体地, 如果移动性管 理网元是在 MTC UE发起附着请求的过程中, 接收到上述指示 (此时 MTC Server指示拒绝 MTC UE附着), 则移动性管理网元拒绝 MTC UE的附着, 向 MTC UE返回附着拒绝响应; 而如是移动性管理网元是在 MTC UE附着 到网络后接收到上述指示 (此时 MTC Server指示去附着该 MTC UE ), 则移 动性管理网元执行去附着流程, 去附着该 MTC UE。 为进一步理解本发明实施例提供的上述技术方案,下面以 EPS网络为例, 通过具体实施例对上述方案进行说明。 利用图 7、 8、 12和 13所示的流程, MTC Server可以从底层接入层获得 MTC UE的信息, 由此, MTC Server可以凭借这些信息, 判断 MTC UE的 行为, 并进一步做出业务层决策, 例如, 当 MTC UE在非允许时间、 或非允 许位置区域、 或以不被允许的 IMSI/IMEI请求附着到网络中时, MTC Server 可以要求 MME拒绝该附着请求; 当附着到网络后的 MTC UE超出所允许的 接入时间、 或移动到不允许的位置区域、 或切换到不允许的网络时, MTC Server可以要求 MME去附着该 MTC UE。 实施例三 在本实施例中, MTC Server对已附着到网络的 MTC UE进行接入控制, 并且, MTC Server通过向 MME查询 MTC UE的信息, 或向 MME订阅与该 MTC UE相关的事件来获取该 MTC UE的信息。 图 14为本实施例中 MTC Server对已附着到网络的 MTC UE进行接入控 制的流程图, 如图 14所示, 在本实施例中, MTC Server对已附着到网络的 MTC UE进行接入控制主要包括以下步骤:
5401 , MTC UE接入到网络;
5402, MTC UE向 MTC Server发起业务层注册;
5403 , MTC Server向 MME查询 MTC UE的信息, 或者向 MME订阅和 该 MTC UE相关的接入层事件;
5404, 与 MTC UE相关的接入层事件发生; 该步 4聚发生在 MTC Server订阅接入层事件后。
5405 , MME向 MTC Server返回所查询的 MTC UE的信息, 或当 MTC Server向 MME订阅接入层事件, 且接入层事件发生 ( S404 ) 后, MME向 MTC Server通知接入层事件;
5406, 当 MTC Server获得了 MTC UE的信息, 或获得了接入层的事件 通知后, MTC Server 居业务管理需要, 判断需要去附着该 MTC UE;
5407, MTC Server向 MME发送去附着请求;
5408, MME接收到去附着请求后,执行去附着流程,去附着该 MTC UE; S409, MME向 MTC Server发送去附着响应。 实施例四 在多数情况下, M2M通讯中对 MTC UE的控制, 有一个 4艮重要的部分 是: 接入控制, 包括: 控制 MTC UE的接入时间、 接入次数、 接入位置等。 如果 MTC UE的当前接入不在允许范围内, 则网络应该拒绝该 MTC UE的 附着, 或者去附着该 MTC UE, 并且也可以进一步下发指示给网络, 当类似 情况发生时候, 网络可以自行拒绝该 MTC UE的附着请求。 在这种应用下, MME 可以在 MTC UE 附着时, 主动发送附着事件给 MTC Server, 由 MTC Server判断附着是否允许,本实施例描述了在 MTC UE 附着时, MME向 MTC Server上 4艮附着事件, 由 MTC Server判断是否允许 MTC UE附着的流程。 图 15为本实施例的流程图, 如图 5所示, 在本实施例中, MTC Server 根据 MME主动上报附着事件对 MTC UE进行接入控制主要包括以下步骤:
5501 , MTC UE向网络发送附着请求, 具体地向 MME发送附着请求;
5502, MME向 HSS发送位置更新, 在该过程中, HSS 向 MME下发 MTC UE的签约数据; S503 , MME向 MTC Server上 4艮附着事件; 在该附着事件中, MME 可能包含该次附着的若千信息, 例如: 接入网 络、 接入位置、 接入时间等。
S504, MTC Server接入到 MME上 4艮的附着事件后, 居业务管理需要, 判断应该拒绝该 MTC UE的接入; S505 , MTC Server向 MME发送拒绝接入指示;
S506, MME接受到 MTC Server发送的拒绝附着指示后, 拒绝 MTC UE 的接入, 向 MTC UE返回附着拒绝响应。 虽然在上述实施例中以 E-UTRAN ( EPS ) 网络为例来描述, 事实上, 对 于 GERAN/UTRAN网络的 GPRS接入, GERAN/UTRAN网络中的 SGSN相 当于 E-UTRAN网络中 MME, 充当 PS域的接入控制、 移动性管理功能, 而 GERAN/UTRAN网络中的 GGSN相当于 E-UTRAN网络中的 SGW+PGW, GERAN/UTRAN中的 HLR相当于 E-UTRAN网络中的 HSS。 因此, 才艮据本 发明实施例的上述描述, 本领域技术人员可以直接将本发明实施例提供的上 述技术方案应用到 GERAN/UTRAN网络中的 PS域。 需要说明的是, 在附图的流程图示出的步骤可以在诸如一组计算机可执 行指令的计算机系统中执行, 并且, 虽然在流程图中示出了逻辑顺序, 但是 在某些情况下, 可以以不同于此处的顺序执行所示出或描述的步骤。 如上所述, 在本发明实施例中, MTC Server通过移动性管理网元可以获 取接收层 载层的 MTC UE的信息, 进而可以才艮据获取的 MTC UE的信息 对 MTC UE进行接入控制, 从而不需要对核心网进行改进, 因此, 不会增加 核心网的复杂度, 并且, 在本发明实施例中, 对 MTC UE进行接入控制的条 件可以保存在 MTC Server 中, 从而使得用户签约数据存储器不需要跟随 M2M业务管理的需要不断地调整 MTC UE的业务签约数据, 进而保证了用 户签约数据存储器的灵活性。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布 在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程 序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 或 者将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制 作成单个集成电路模块来实现。 这样, 本发明不限制于任何特定的硬件和软 件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的 ^"神和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。

Claims

权 利 要 求 书 一种机器类通讯 MTC终端的接入控制方法, 其特征在于, 包括:
MTC 月艮务器通过移动性管理网元获取当前请求附着到网络或当前 已附着到网络的 MTC终端的信息;
所述 MTC月艮务器 居所述 MTC终端的信息判断不允许所述 MTC 终端接入, 向所述移动性管理网元发送禁止所述 MTC终端接入的指示; 所述移动性管理网元接收所述指示, 据所述指示拒绝所述 MTC 终端接入到网络。 才艮据权利要求 1 所述的方法, 其特征在于, 所述 MTC 艮务器通过所述 移动性管理网元获取所述 MTC终端的信息包括:
所述移动性管理网元向所述 MTC月艮务器上 4艮所述 MTC 终端的信 息;
所述 MTC 艮务器获取所述移动性管理网元上 4艮的所述 MTC终端的 信息。 根据权利要求 2所述的方法, 其特征在于, 所述移动性管理网元向所述 MTC服务器上 4艮所述 MTC终端的信息包括:
所述移动性管理网元根据从用户签约数据存储器获取的所述 MTC 终端的签约数据的指示,向所述 MTC服务器上报所述 MTC终端的信息, 其中, 所述签约数据中包括为所述 MTC终端月艮务的所述 MTC月艮务器的 信息。 根据权利要求 3所述的方法, 所述移动性管理网元从所述用户签约数据 存储器获取所述 MTC终端的签约数据包括:
在所述 MTC 终端发起附着请求时, 所述移动性管理网元接收到附 着请求后, 向所述用户签约数据存储器发送位置更新请求;
所述移动性管理网元接收所述用户签约数据存储器返回的位置更新 响应, 其中, 所述位置更新响应中携带有所述 MTC终端的签约数据。
5. 根据权利要求 4所述的方法, 其特征在于, 所述签约数据中还包括: 指 示所述移动性管理网元将所述 MTC终端的信息上报给所述 MTC服务器 的第一指示信息;
则所述移动性管理网元向所述 MTC 艮务器上 4艮所述 MTC终端的信 息包括: 所述移动性管理网元在接收到所述位置更新响应后, 居所述 签约数据中包含的所述第一指示信息的指示, 向所述 MTC服务器上报 所述 MTC终端的信息。
6. 根据权利要求 3所述的方法, 其特征在于, 所述签约数据中还包括: 指 示所述移动性管理网元在所述 MTC终端发生预定事件时向所述 MTC服 务器发送事件通知的第二指示信息;
则所述移动性管理网元向所述 MTC 艮务器上 4艮所述 MTC终端的信 息包括: 所述移动性管理网元在获知所述 MTC 终端发生预定事件时, 根据所述第二指示信息的指示, 向所述 MTC服务器发送事件通知, 其 中, 所述事件通知中携带有当前所述 MTC终端的信息。
7. 根据权利要求 6所述的方法, 其特征在于, 所述预定事件包括以下之一 或其任意组合:
所述 MTC终端的签约数据发生变化;
所述 MTC终端使用的 IMEI发生变化;
所述 MTC终端的状态发生变化;
所述 MTC终端的位置发生变化;
所述 MTC终端的网络发生变化。
8. 根据权利要求 2所述的方法, 其特征在于, 在所述移动性管理网元向所 述 MTC 艮务器上 4艮所述 MTC终端的信息之前, 所述方法还包括: 在所述 MTC终端附着到网络后,所述 MTC 艮务器向所述移动性管 理网元发送查询请求;
所述移动性管理单元接收所述查询请求。
9. 根据权利要求 8所述的方法, 其特征在于, 所述 MTC服务器向所述移 动性管理网元发送查询请求包括: 所述 MTC服务器确定需要获取所述 MTC终端的信息时,获取为所 述 MTC终端分配的所述移动性管理网元的地址;
所述 MTC服务器根据获取的所述移动性管理网元的地址, 向所述 移动性管理网元发送所述查询请求。
10. 根据权利要求 9所述的方法, 其特征在于, 所述 MTC服务器在以下情 况之一确定需要获取所述 MTC终端的信息:
所述 MTC服务器需要检测为所述 MTC终端配备的 SIM卡是否被 盗用;
所述 MTC 艮务器需要判断所述 MTC终端是否在不被允许的位置区 域接入;
所述 MTC服务器需要判断所述 MTC终端是否移动到不被允许的位 置区域;
所述 MTC服务器需要判断所述 MTC终端是否在不被允许的时间接 入;
所述 MTC服务器需要判断所述 MTC终端接入到网络的时间是否超 过预定时长。
11. 根据权利要求 9所述的方法, 其特征在于, 所述 MTC服务器获取为所 述 MTC终端分配的所述移动性管理网元的地址包括:
所述 MTC服务器接收所述 MTC终端在附着到网络后发送的注册消 息, 其中, 所述注册消息中携带有为所述 MTC 终端分配的移动性管理 网元的标识信息;
所述 MTC服务器才艮据所述标识信息,解析得到为所述 MTC终端分 配的所述移动性管理网元的地址。
12. 根据权利要求 9所述的方法, 其特征在于, 所述 MTC服务器获取为所 述 MTC终端分配的所述移动性管理网元的地址包括:
在所述 MTC 终端发起附着的过程中, 所述移动性管理网元从用户 签约数据存储器中获取所述 MTC 终端的签约数据, 其中, 所述签约数 据中包括为所述 MTC终端 艮务的所述 MTC 艮务器的信息; 所述移动性管理网元才艮据所述 MTC 艮务器的信息解析得到所述 MTC月艮务器的地址;
所述移动性管理网元向所述 MTC服务器发送通知消息, 其中, 所 述通知消息中携带有所述 MTC 终端的属性信息以及所述移动性管理网 元的属性信息;
所述 MTC服务器根据所述 MTC终端的属性信息以及所述移动性管 理网元的属性信息获取为所述 MTC 终端分配的所述移动性管理网元的 地址。
13. 根据权利要求 12所述的方法, 其特征在于, 所述 MTC终端的属性信息 包括: 所述 MTC终端的标识和 /或所述 MTC终端的 IP地址; 所述移动 性管理网元的属性信息包括: 所述移动性管理网元的标识和 /或所述移动 性管理网元的 IP地址。
14. 根据权利要求 9所述的方法, 其特征在于, 所述 MTC服务器与用户签 约数据存储器相连;
所述 MTC服务器获取为所述 MTC终端分配的所述移动性管理网元 的地址包括: 在所述 MTC终端附着到网络并向所述 MTC服务器发起注 册时, 所述 MTC服务器通过向所述用户签约数据存储器查询获取为所 述 MTC终端分配的移动性管理网元的地址。
15. 根据权利要求 14所述的方法, 其特征在于, 所述 MTC服务器通过向所 述用户签约数据存储器查询获取为所述 MTC 终端分配的移动性管理网 元的地址包括:
所述 MTC服务器向所述用户签约数据存储器查询为所述 MTC终端 分配的移动性管理网元的地址;
所述用户签约数据存储器获取保存的为所述 MTC 终端分配的移动 性管理网元的地址, 并^ 1为所述 MTC 终端分配的所述移动性管理网元 的地址返回给所述 MTC月艮务器。
16. 根据权利要求 14所述的方法, 其特征在于, 所述 MTC服务器通过向所 述用户签约数据存储器查询获取所述 MTC 终端分配的移动性管理网元 的地址包括: 所述 MTC服务器向所述用户签约数据存储器查询所述 MTC终端的 签约数据;
所述用户签约数据存储器向所述 MTC月艮务器返回所述 MTC终端的 签约数据以及保存的为所述 MTC 终端分配的所述移动性管理网元的地 址。
17. 居权利要求 8所述的方法, 其特征在于, 所述查询请求用于查询所述 MTC终端的信息;
则所述移动性管理网元向所述 MTC 艮务器上 4艮所述 MTC终端的信 息包括: 所述移动性管理网元在接收到所述查询请求后, 所述移动性管 理网元获取当前所述 MTC终端的信息, 并将获取的所述 MTC终端的信 息上报给所述 MTC服务器。
18. 根据权利要求 8所述的方法, 其特征在于, 所述查询请求用于请求所述 移动性管理网元在所述 MTC终端发生预定事件时向所述 MTC 艮务器发 送事件通知;
则所述移动性管理网元向所述 MTC 艮务器上 4艮所述 MTC终端的信 息包括: 所述移动性管理网元在获知所述 MTC 终端发生预定事件时, 向所述 MTC服务器发送事件通知, 其中, 所述事件通知中携带有当前 所述 MTC终端的信息。
19. 根据权利要求 18所述的方法, 其特征在于, 所述预定事件包括以下之一 或其任意组合:
所述 MTC终端的签约数据发生变化;
所述 MTC终端的状态发生变化;
所述 MTC终端的位置发生变化;
所述 MTC终端的网络发生变化。
20. 根据权利要求 1至 19中任一项所述的方法, 其特征在于, 所述 MTC终 端的信息包括以下之一或其任意组合:
所述 MTC终端当前的业务签约数据;
所述 MTC终端所使用的国际用户识别码 IMSI和国际移动设备识别 码 IMEI; 所述 MTC终端在所述移动性管理网元上的上下文信息。
21. 根据权利要求 20所述的方法, 其特征在于, 所述 MTC终端在所述移动 性管理网元上的上下文信息包括: 所述 MTC 终端的当前位置区域信息 和所述 MTC终端当前的状态信息。
22. 根据权利要求 21所述的方法, 其特征在于, 所述 MTC服务器判断不允 许所述 MTC终端接入包括:
所述 MTC服务器判断获取的所述 MTC终端的信息是否满足预定条 件, 在判断不满足的情况下, 确定不允许所述 MTC终端接入;
其中, 所述预定条件包括以下之一或其任意组合: 允许所述 MTC 终端接入的时间、 允许所述 MTC终端接入的位置区域、 允许所述 MTC 终端使用的 IMSI与 IMEI的绑定关系、允许所述 MTC终端附着的网络、 允许所述 MTC终端接入的次数。
23. 根据权利要求 22所述的方法, 其特征在于, 所述 MTC服务器在以下之 一或其任意组合的情况下判断不允许所述 MTC终端接入:
判断所述 MTC终端在非允许时间请求附着到网络;
判断所述 MTC终端在非允许位置区域请求附着到网络; 判断所述 MTC终端超过允许接入的次数;
判断所述 MTC终端以不被允许的 IMSI与 IMEI的绑定请求附着到 网络;
判断所述 MTC终端移动到不允许的位置区域;
判断所述 MTC终端附着到网络的时间超出了所允许的接入时间; 判断所述 MTC终端切换到不允许的网络。
24. 根据权利要求 1至 19中任一项所述的方法,其特征在于,如果所述 MTC 终端当前请求附着到网络, 则拒绝所述 MTC 终端接入的指示包括: 拒 绝所述 MTC终端附着的指示;
所述移动性管理网元根据所述指示拒绝所述 MTC 终端接入到网络 包括: 所述移动性管理网元拒绝所述 MTC终端的接入, 向所述 MTC终 端返回附着拒绝响应。
25. 根据权利要求 1至 19中任一项所述的方法,其特征在于,如果所述 MTC 终端当前已附着到网络, 则拒绝所述 MTC 终端接入的指示包括: 去附 着所述 MTC终端的指示;
所述移动性管理网元根据所述指示拒绝所述 MTC 终端接入到网络 包括: 所述移动性管理网元执行去附着流程, 去附着所述 MTC终端。
26. 根据权利要求 1至 19中任一项所述的方法, 其特征在于, 所述移动性管 理网元包括: 月艮务通用分组无线业务支撑节点 SGSN 或移动管理单元 MME。
27. 根据权利要求 3至 16中任一项所述的方法, 其特征在于, 所述用户签约 数据存储器包括: 归属位置寄存器 HLR或归属用户服务器 HSS。
28. 一种 MTC 终端的接入控制系统, 其特征在于, 包括: 用户签约数据存 储器、 移动性管理网元和 MTC服务器, 其中,
所述用户签约数据存储器, 用于保存系统内的 MTC 终端的签约数 据;
所述移动性管理网元, 与所述用户签约数据存储器连接, 用于接收 所述用户签约数据存储器下发的当前请求附着到网络或当前已附着到网 络的 MTC终端的签约数据, 并向所述 MTC服务器提供所述 MTC终端 的信息;
所述 MTC月艮务器,与所述移动性管理网元连接,用于才艮据所述 MTC 终端的信息, 判断是否允许所述 MTC终端接入, 并在不允许所述 MTC 终端接入的情况下, 向所述移动性管理网元发送拒绝所述 MTC 终端接 入的指示, 以使所述移动性管理网元拒绝所述 MTC终端接入到网络。
29. 根据权利要求 28所述的系统, 其特征在于, 所述 MTC服务器还与所述 用户签约数据存储器连接, 用于从所述用户签约数据存储器获取所述 MTC终端的签约数据或为所述 MTC终端分配的所述移动性管理网元的 地址。
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