WO2011082636A1 - 机器到机器核心网络的接入实现方法及装置 - Google Patents

机器到机器核心网络的接入实现方法及装置 Download PDF

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Publication number
WO2011082636A1
WO2011082636A1 PCT/CN2010/080317 CN2010080317W WO2011082636A1 WO 2011082636 A1 WO2011082636 A1 WO 2011082636A1 CN 2010080317 W CN2010080317 W CN 2010080317W WO 2011082636 A1 WO2011082636 A1 WO 2011082636A1
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WIPO (PCT)
Prior art keywords
core network
network
access
terminal device
virtual gateway
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PCT/CN2010/080317
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English (en)
French (fr)
Inventor
谢宝国
李志军
陶全军
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US13/520,573 priority Critical patent/US9271222B2/en
Priority to EP10841979.7A priority patent/EP2523505B1/en
Publication of WO2011082636A1 publication Critical patent/WO2011082636A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

Definitions

  • the present invention relates to the field of communications, and in particular to a method and apparatus for implementing access to a machine-to-machine (M2M) core network.
  • M2M communication services have been widely used, for example, in logistics systems, remote meter reading, smart homes, and the like.
  • the M2M service provider mainly uses the existing wireless network to carry out M2M services, for example, a general packet radio service (GPRS) network, and an Evolved Packet System (EPS) network. . Since the M2M service and the Human to Human (H2H) service have obvious differences, it is necessary to optimize the network deployment to meet the M2M application and obtain the best network management. Communication quality with the network.
  • GPRS general packet radio service
  • EPS Evolved Packet System
  • the GPRS network is a second-generation mobile communication network based on packet switching.
  • GPRS evolves into a Universal Mobile Telecommunication System Packet Switch (UMTS PS).
  • FIG. 1 is a schematic diagram of a network architecture of a UMTS PS according to the prior art.
  • the network architecture includes the following network elements: a radio network system (RNS), and a node in the RNS. B (NodeB) and a Radio Network Controller (RNC), where the NodeB provides an air interface connection for the terminal; the RNC is mainly used to manage radio resources and control the NodeB.
  • RNS radio network system
  • NodeB Radio Network Controller
  • RNC Radio Network Controller
  • the RNC and the NodeB are connected through the lub port, and the terminal accesses the packet mobile core network (Packet Core) of the Universal Mobile Telecommunication System (UMTS) through the RNS; the Serving GPRS Support Node (referred to as the Serving GPRS Support Node, referred to as SGSN), connected to the RNS through the Iu port, used to store the location information of the user's routing area, responsible for security and access control;
  • the Gateway GPRS Support Node (GGSN) is internally connected to the SGSN through the Gn port. It is responsible for allocating the IP address of the terminal and implementing the gateway function to the external network.
  • Home Location Register (referred to as Home Location Register) It is connected to the SGSN through the Gr port, and is connected to the GGSN through the Gc port. It is used to store the user's subscription data and the current SGSN address.
  • the packet data network (PDN) is used to pass the Gi port and the GGSN. Connected to provide a packet-based service network for users.
  • MTC Machine Type Communication
  • UE User Equipment
  • the GPRS network establishes a tunnel between the RNC-SGSN and the GGSN for the transmission.
  • the tunnel is based on the GPRS Tunneling Protocol (GTP), and the data information is reliably transmitted through the GTP tunnel.
  • GTP GPRS Tunneling Protocol
  • S ⁇ System Architecture Evolution
  • EPS Evolved Packet System
  • 2 is a schematic diagram of a network system architecture of an EPS according to the prior art. As shown in FIG.
  • E-RAN Evolved Radio Access Network
  • eNodeB Evolved NodeB
  • Packet Data Network PDN
  • EPC provides lower latency and allows for more Multiple wireless access system access, including the following network elements: Mobility Management Entity (MME), which is a control plane functional entity, a server that temporarily stores user data, and is responsible for managing and storing the context of the UE (for example, User identification, mobility management status, user security parameters, etc., assign a temporary identifier to the user, and when the UE is resident in the tracking area or the network, it is responsible for authenticating the user.
  • MME Mobility Management Entity
  • SGW Serving Gateway
  • ECM_IDLE idle
  • SGW Packet Data Network Gateway
  • PDN Gateway PGW or P-GW for short
  • PDN Gateway PGW or P-GW for short
  • the Policy and Charging Enforcement Function is also located in the PGW.
  • the Policy and Charging Rules Function is responsible for providing policy control and charging rules to the PCEF.
  • the Home Subscriber Server (HSS) is responsible for permanently storing user subscription data.
  • the content stored in the HSS includes the International Mobile Subscriber Identification (IMSI) of the UE and the IP address of the PGW. Physically, the foregoing SGW and PGW may be integrated, and the EPC system user plane network element includes an SGW and a PGW.
  • the MTC server is mainly responsible for information collection and data storage/processing of the MTC User Equipment (MTC UE), and can perform necessary management on the MTC UE.
  • MTC UE MTC User Equipment
  • the MTC UE is usually responsible for collecting information on the multiplexer and accessing the core network through the RAN node to exchange data with the MTC Server.
  • the MTC UE needs to transmit data information to the MTC Server or other MTC UEs through the EPS network.
  • the SAE network establishes a GTP tunnel between the SGW and the PGW for this transmission, and the data information is reliably transmitted through the GTP tunnel.
  • 3 is a schematic flowchart of a process of attaching a UE to an EPS network according to the prior art. As shown in FIG.
  • the related attach process mainly includes the following processing (step S301 - step S318): Step S301, the UE picks up Entering the SAE network, initiating a network attach request to the eNodeB, where the request carries information such as the IMSI, the network access capability of the UE, and the indication of requesting the IP address.
  • the eNodeB selects an MME for the UE. And forwarding the attach request to the MME, and carrying important information such as the identifier of the UE to the MME;
  • the HSS first determines the subscription data corresponding to the IMSI.
  • the HSS If no subscription is found or the IMSI is blacklisted, the HSS returns an authentication data response to the MME. And carrying the appropriate error reason; if the contract data corresponding to the IMSI is found, the HSS returns an authentication data response message (including an authentication vector) to the MME; the MME performs an authentication process to verify the legality of the terminal IMSI, and performs security.
  • the MME sends a location update request message to the HSS of the home network to inform the UE of the currently accessed area, where the request message carries the identifier of the MME and the identifier of the UE.
  • Step S305 The HSS searches for the UE according to the identifier of the UE.
  • the subscriber data is sent to the MME, and the user data mainly includes information such as a default access point name (Access Point Name, ⁇ for short), a bandwidth size, etc. It is noted that the user data is received.
  • Step S306 the HSS sends an acknowledgment location update response to the MME.
  • the MME selects an S-GW for the UE, and sends a request for establishing a default bearer to the MME, where the request includes the information necessary for the MME to notify the S-GW.
  • Step S308 the S-GW sends a request for establishing a default bearer to the PDN GW, where the request includes the S -GW informs the PDN GW of the necessary information, the address of the S-GW, the default bandwidth information, an indication for assigning an IP address to the UE, etc.; Step S309, if necessary, the PDN GW requests the PCRF to configure a policy and charging rule for the UE.
  • Step S310 the PDN GW establishes a default load according to the policy and charging decision information returned by the PCRF, and returns a load establishment response to the S-GW;
  • Step S311 the S-GW sends the default load to the UI. response;
  • the MME sends an attach accept response to the eNodeB, indicating that the UE is attached to the network.
  • the response carries the Serving GW address and the Tunnel Endpoint Identifier (TEID).
  • Step S313 the eNodeB goes to the UE.
  • Step S314 the UE Sending a radio bearer setup response to the eNodeB; Step S315, the eNodeB notifying the MME that the attach procedure is complete; Step S316, the MME sends an update bearer request to the S-GW to notify the identifier and address of the eNodeB that is the UE's monthly service; Step S317, S-GW Sending an update bearer response to the MME; Step S318: If the PDN GW is not specified by the HSS, the MME sends a location update request to the HSS, and notifies the HSS of the address information of the PDN GW served by the UE, and the HSS updates the information.
  • Step S401 the user is the first time
  • the RNS sends an attach request message to the SGSN, where the request message carries an attachment type, an IMSI, and the like, and the RNS uses the International Mobile Subscriber Identity (IMSI) as the request identifier according to the load condition of the RNS.
  • IMSI International Mobile Subscriber Identity
  • Step S402 the SGSN requests the HLR to authenticate the IMSI, and the HLR downloads the authentication authentication parameter according to the IMSI, and the SGSN authenticates and authenticates the UE.
  • Step S403 The SGSN sends a location update request to the HLR.
  • the request carries parameters such as SGSN number and address, IMSI, and the like;
  • Step S404 the HLR downloads the subscription data corresponding to the IMSI to the SGSN, and the SGSN pairs
  • the ME performs an access control check to check whether the UE has an area restriction or an access restriction, and then returns an input data response to the HLR.
  • Step S405 the HLR confirms the location update message, and sends a location update response to the SGSN.
  • the SGSN will reject the UE's attach request; in step S406, the SGSN allocates the packet temporary mobile subscriber identity number to the subscriber.
  • P-TMSI Packet-Temporate Mobile subscriber Identify
  • Step S407 if the P-TMSI is updated, the MS returns the attachment completion.
  • the message is acknowledged by the SGSN to complete the GPRS attach procedure.
  • the existing terminal device such as a mobile phone can receive the wireless transmission from the wireless access network.
  • the signal is attached to the carrier network through the wireless access network, and then services such as voice calls can be performed.
  • the M2M business is a global machine-like communication service that has been on the rise and is gradually on the industrialization agenda. It enables various industries and individuals to collect information data through M2M terminals in the sensor network and then transmit information data through the network. You can enjoy the convenience of information services anytime, anywhere. M2M can be widely used in industrial applications, home applications, personal applications, and more. In industry applications, examples; : Traffic monitoring, smart grid, building alarms, sea rescue, vending machines, paying by car, etc. In home applications, such as: automatic #, table, temperature control, etc. In personal applications, such as: life detection, remote diagnosis, etc.
  • the communication objects of M2M are machine-to-machine and human-to-machine.
  • Data communication between one or more machines is defined as Machine Type Communication (MTC), in which case human interaction is less required.
  • MTC Machine Type Communication
  • the machine participating in the MTC is defined as an MTC device.
  • the MTC device is a terminal of the MTC user, and can communicate with the MTC device and the MTC server through the PLMN network.
  • Mobile Equipment (ME for short) is a function block attached to the MTC device. This function block is used to connect the MTC device to a wireless network (such as EPS network, GPRS network, etc.).
  • the MTC server (MTC Server) manages and monitors MTC devices. Since MTC devices are mostly devices for specific applications in different scenarios, there are many types and quantities.
  • M2M terminals are mainly used for mobility applications.
  • M2M terminals are not mobile, which is very different from the prior art in terms of mobility management (for example, the network does not need frequent location updates).
  • M2M terminal is mainly used for the application of data volume, which is very different from the service of the high bandwidth channel provided in the existing network, so the transmission mode of the network in the low data volume is very large with the prior art. s difference.
  • the network needs to process the MTC device group, it needs to meet the requirements of various characteristics of the MTC terminal, such as time control, MTC monitoring, etc., which must be optimized for the existing network.
  • time control such as time control, MTC monitoring, etc.
  • the main purpose of the present invention is to provide a An access method and apparatus for implementing an M2M core network to solve at least one of the above problems.
  • an access implementation method of an M2M core network is provided.
  • the access implementation method of the M2M core network includes: the network element receives an access request message carrying the device identity indication information, where the access request message is initiated by the terminal device; the network element determines the terminal according to the device identity indication information
  • the device is an M2M device; the network element selects a corresponding M2M core network for the terminal device to implement access of the terminal device.
  • an access implementation apparatus for an M2M core network is provided.
  • the access implementation apparatus of the M2M core network includes: a receiving unit, configured to receive an access request message carrying device identity indication information, where the access request message is set by the terminal And a determining unit, configured to determine, according to the device identity indication information, that the terminal device is an M2M device, and an implementation unit, configured to select a corresponding M2M core network for the terminal device to implement access by the terminal device.
  • the invention provides a dedicated M2M core network, which specifically serves the M2M service, and solves the problem that the existing network in the related technology has difficulty in meeting the M2M service requirement, so that the existing network does not need to be enhanced and greatly expanded. It is still satisfying the needs of M2M services while still providing services for existing H2H equipment.
  • FIG. 1 is a schematic diagram of a network system architecture according to the prior art UMTSPS
  • FIG. 2 is a schematic diagram of a network system architecture according to the EPS in the prior art
  • FIG. 3 is a schematic diagram of the MTC according to the prior art.
  • FIG. 4 is a schematic flowchart of an attach process of an MTC UE in a GPRS network according to the prior art;
  • FIG. 5 is an access implementation of an M2M core network according to an embodiment of the present invention
  • FIG. 6 is a structural block diagram of an access implementation apparatus of an M2M core network according to a preferred embodiment of the present invention
  • FIG. 7 is a diagram of a shared wireless connection using an M2M core network in a GPRS network according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of an architecture 2 for implementing an M2M service by using a M2M core network shared wireless access network in a GPRS network according to an embodiment of the present invention;
  • FIG. 9 is a schematic diagram of FIG. A schematic diagram of an architecture 3 for implementing an M2M service by using an M2M core network shared radio access network in an EPS network according to an embodiment of the present invention;
  • FIG. 10 is a schematic diagram of an architecture 4 for implementing an M2M service by using an M2M core network shared radio access network in an EPS network according to an embodiment of the present invention
  • FIG. 11 is an access implementation of an M2M core network according to an embodiment of the present invention
  • FIG. 12 is a flow chart showing the process of attaching an MTC UE to an M2M core network through an existing wireless access network according to the first embodiment of the present invention
  • FIG. 13 is a schematic diagram of an MTC UE in accordance with the present invention.
  • the process of attaching the MTC UE to the M2M core network through the existing radio access network in the EPS network is as follows.
  • FIG. 10 is a schematic diagram of an architecture 4 for implementing an M2M service by using an M2M core network shared radio access network in an EPS network according to an embodiment of the present invention
  • FIG. 11 is an access implementation of an M2M core network according to an embodiment of the present invention
  • FIG. 12 is a flow chart showing the process
  • FIG. 14 is a schematic diagram of the MTC UE in the GPRS network according to the third example of the present invention.
  • FIG. 15 is a schematic diagram of a process of attaching an M2M core network to an M2M core network according to the fourth embodiment of the present invention;
  • FIG. 15 is an MTC UE according to the fourth embodiment of the present invention, and attaching to the M2M core network through the existing wireless access network according to the second mode.
  • FIG. 16 is a schematic diagram of a process of the process;
  • FIG. 16 is a schematic diagram of an MTC UE according to the fifth embodiment of the present invention, in a GPRS network, using the third mode to access the M2M core network through the existing wireless access network.
  • FIG. 15 is a schematic diagram of a process of attaching an M2M core network to an M2M core network according to the fourth embodiment of the present invention.
  • FIG. 15 is an MTC UE according to the fourth embodiment of the present invention, and attaching to the M2M core
  • FIG. 17 is a schematic flowchart of the process of attaching an M2M core network according to the sixth embodiment of the present invention to the M2M core network in the EPS network.
  • BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 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.
  • deploying a network to meet M2M services has two modes: One upgrades the existing network to meet various application requirements of the M2M terminal, but the price is the entire network upgrade. Another mode is to use the M2M core network dedicated to the multi-layer port in the existing network to specifically handle the M2M service and meet the various requirements of the M2M application.
  • FIG. 5 is a structural block diagram of an apparatus for implementing access of an M2M core network according to an embodiment of the present invention.
  • the apparatus comprises: a receiving unit 1, a determining unit 2 and an implementing unit 3.
  • the receiving unit 1 is configured to receive an access request message that carries the device identity indication information, where the access request message is initiated by the terminal device, and the determining unit 2 is configured to determine, according to the device identity indication information, that the terminal device is an M2M device; 3.
  • the device identity indication information includes, but is not limited to, at least one of the following: device type information, device access capability information, and device identification information (eg, an International Mobile Subscriber Identity (IMSSI) number segment, a mobile station international ISDN number ( MSISDN), Access Point Name (APN)).
  • IMSI International Mobile Subscriber Identity
  • MSISDN mobile station international ISDN number
  • API Access Point Name
  • the network element may be one of the following: an enhanced wireless access network, a virtual gateway.
  • the enhanced radio access network refers to enhancing an existing radio access network, and the enhanced radio access network has the capability of determining whether the terminal device is an M2M device according to the device identity indication information.
  • the foregoing device implements the process of the M2M terminal accessing the M2M core network, including but not limited to the following three implementation manners: In the first manner, the foregoing device may be an enhanced wireless access network, and may be based on the terminal device type and/or access. The capability is to identify whether it is an M2M terminal or an H2H terminal, and select a corresponding core network for access processing.
  • the device may also be a virtual gateway logical network element to complete selection of a core network, where the virtual gateway may be integrated.
  • the device can also be deployed as a separate entity.
  • the device can also be a virtual gateway, and the virtual gateway acts as a proxy server, located between the wireless access network and the core network, and all of the wireless access networks. The related information is sent to the virtual gateway, and the virtual gateway is used to select the corresponding core network and perform signaling forwarding.
  • the modules included in the implementation unit 3 are also different according to different devices.
  • FIG. 6 is a structural block diagram of an access implementation device of the M2M core network according to a preferred embodiment of the present invention, as shown in FIG. Different devices are explained: For the first mode, that is, the above device is an enhanced wireless access network (for example,
  • the eNodeB in the EPS network is enhanced, or the RNC in the GPRS network is enhanced.
  • the implementation unit 3 of the device includes: a first selection module 30, configured to perform corresponding relationship information between the pre-configured terminal device identity and the M2M core network. And selecting, by the terminal device, a corresponding first core network address, where the first sending module 32 is configured to initiate an access request to the corresponding M2M core network according to the first core network address.
  • the second mode that is, the device is a virtual gateway
  • the implementation unit 3 of the device includes a second selection module 34, configured to be a terminal according to the pre-configured relationship between the identity of the terminal device and the M2M core network.
  • the device selects a corresponding second core network address; the second sending module 36 is configured to send the second core network address to the wireless access network; and the first access requesting module 38 is configured to use the second core network address to The corresponding M2M core network initiates an access request.
  • the device is a virtual gateway, and the implementation unit 3 of the device includes a third selection module 40, configured to be a terminal according to the pre-configured relationship between the identity of the terminal device and the M2M core network.
  • the device selects a corresponding third core network address, and the second access request module 42 is configured to initiate an access request to the corresponding M2M core network according to the third core network address.
  • the device when the device is a virtual gateway, the device is equivalent to the proxy server forwarding the signaling message between the radio access network and the M2M core network. That is, the virtual gateway sends all signaling messages from the radio access network to the M2M core network, and the virtual gateway sends all signaling messages from the M2M core network to the radio access network.
  • the first method does not need to make major changes to the original system architecture, and only needs to enhance the existing wireless access network, and the enhanced wireless access network can be based on the type of the terminal device or / and access capability to identify whether it is an M2M terminal or an H2H terminal, and select the corresponding core network for processing.
  • FIG. 7 is a schematic diagram of an architecture 1 for implementing an M2M service by using a M2M core network shared radio access network in a GPRS network according to an embodiment of the present invention. As shown in Figure 7, and depicted in Figure 1. Compared with the existing GPRS network, the M2M core network is added, wherein the M2M core network includes an M-SGSN and an M-GGSN.
  • the function of the M-SGSN is similar to that of the SGSN of the existing network. It is also connected to the RNS through the Iu port, and is used to store the location information of the user's routing area, responsible for security and access control. However, the M-SGSN is only responsible for the M2M service and is not responsible for the H2H service. Therefore, the functions of the mobility management of the H2H terminal are simplified, and the functions of the M2M service are enhanced, such as the mobility management and identification of the M2M terminal.
  • the M2M terminal identifier and the group identifier perform time control on the access, and can perform group management on the M2M terminal, and satisfy the functional requirements of the low data volume transmission mode and the specific charging requirement of the M2M terminal.
  • the function of the M-GGSN is similar to that of the GGSN of the existing network. It is internally connected to the M-SGSN through the Gn port, and is used to allocate the IP address of the terminal and implement the gateway function to the external network.
  • the M-GGSN is only responsible for the M2M service and is not responsible for the H2H service. Therefore, the function of the bearer establishment and charging of the H2H terminal is optimized, and the functions of the M2M service are enhanced, for example, the group charging of the M2M terminal is satisfied.
  • V-GW Virtual GW
  • the address selection server that is, is responsible for selecting a core network corresponding to the terminal.
  • the V-GW can only use the IMSI number segment of the terminal, the MSISDN number segment, and the APN (for example, the MTC UE uses the full i or the name) MTC.TAI.MCC.MNC.3GPP.XXX), device type, device access capability, etc.
  • FIG. 8 is a schematic diagram of an architecture 2 for implementing an M2M service by using a M2M core network shared radio access network in a GPRS network according to an embodiment of the present invention. As shown in FIG.
  • the V-GW In the first architecture, the V-GW is responsible for selecting the core network, but in the second architecture, the V-GW is located between the radio access network and the core network, in the radio access network. Only the address of the V-GW is configured, and all signaling of the radio access network is forwarded to the core network through the V-GW. All signaling sent by the core network to the radio access network is also forwarded to the radio access network through the V-GW.
  • FIG. 9 is a schematic diagram of an architecture 3 for implementing an M2M service by using an M2M core network shared radio access network in an EPS network according to an embodiment of the present invention. As shown in FIG. 9, the existing EPS described in FIG.
  • the M2M core network is added, wherein the M2M core network includes M-MME and M-SGW/M-PGW.
  • the function of the M-MME is similar to that of the existing EPS network. It functions as a control plane function entity in the M2M core network and a server that temporarily stores user data, and is responsible for managing and storing the context of the UE (eg, user identity, mobility). Management status, user security parameters, etc.), assign a temporary identifier to the user, and when the UE is resident in the tracking area or the network, it is responsible for authenticating the user.
  • the M-MME is only responsible for the M2M service and is not responsible for the H2H service.
  • the functions of the H2H terminal mobility management are simplified, and the functions of the M2M service are enhanced, for example, the low mobility management of the M2M terminal is satisfied.
  • the function of the M-SGW/M-PGW is similar to the SGW/PGW function of the existing EPS network.
  • the M-SGW acts as the user plane anchor point and is responsible for the processing of the user plane data routing, and terminates in the idle (ECM IDLE) state.
  • ECM IDLE idle
  • the M-PGW is responsible for user IP address management and storage of the SAE bearer context of the UE, and is also responsible for implementing functions such as policy enforcement and charging support.
  • the M-SGW/PGW is only responsible for the M2M service and is not responsible for the H2H service. Therefore, the functions of the H2H terminal for 7-port establishment and accounting are optimized, and the functions of the M2M service are enhanced, such as the group that satisfies the M2M terminal. Billing, group policy allocation, group maximum bit rate limitation, device level network load control, low data volume transfer and other functional requirements.
  • V-GW Virtual GateWay
  • the V-GW can only use the IMSI number segment of the terminal, the MSISDN number segment, and the APN (for example, the MTC UE uses the full i or the name MTC.TAI.MCC.MNC.3GPP. XXX) and other instructions to determine whether it is an M2M device, and then select the corresponding core network address.
  • the V-GW is a logical network element and can be integrated into the radio access network or deployed as a network element entity.
  • the MTC UE initiates an attach request, and the V-GW can identify whether the device of the J MTC UE is an H2H device or an M2M device according to the device identifier, and thereby selects a core network address.
  • the wireless access network can then send an attach request to the corresponding core network.
  • FIG. 10 is a schematic diagram of an architecture 4 for implementing an M2M service by using an M2M core network shared radio access network in an EPS network according to an embodiment of the present invention. As shown in FIG. 10, compared with the architecture 3 described in FIG. M2M core network has been added to the existing EPS network, M-MME and
  • M-SGW/M-PGW The functions of M-MME and M-SGW/M-PGW are the same as those described in Architecture 3 and will not be described here. The difference lies in the function of the V-GW: In Architecture 3, the V-GW is responsible for selecting the core network. In the fourth architecture, the V-GW is located between the radio access network eNodeB and the core network, and only the address of the V-GW is configured in the eNodeB, and all signaling of the eNodeB is forwarded to the core network through the V-GW. All signaling sent by the core network to the eNodeB is also forwarded to the radio access network through the V-GW.
  • the V-GW can determine whether the terminal is an M2M terminal or an H2H terminal when the terminal is attached, and then select a corresponding core network, and all the information from the wireless access network including the attachment message. The messages are forwarded to the selected core network.
  • the V-GW can be integrated in the eNodeB as a logical function module or as a network element entity. According to an embodiment of the present invention, an access implementation method of an M2M core network is also provided. 11 is a schematic flowchart of a method for implementing access of an M2M core network according to an embodiment of the present invention. As shown in FIG.
  • the implementation method includes the following processing steps (step S1102-step S1106): Step S1102, a network element Receiving an access request message carrying the device identity indication information, where the access request message is initiated by the terminal device; Step S1104: the network element determines, according to the device identity indication information, that the terminal device is an M2M device; Step S1106, the network element The corresponding M2M core network is selected for the terminal device to implement access of the terminal device.
  • the above method can be used to connect the M2M terminal to the dedicated M2M core network, so that the existing network does not need to be enhanced. And a large number of expansions, still meet the needs of M2M business while providing services for existing H2H equipment.
  • the network element includes but is not limited to one of the following: a wireless access network, a virtual gateway.
  • the network element may further include a server capable of providing a core network address and determining the identity of the terminal device.
  • the device identity indication information includes at least one of the following: device type information, device access capability information, device identification information (eg, IMSI, MSISDN, etc.).
  • the method for implementing the M2M terminal to access the M2M core network by using the foregoing method includes, but is not limited to, the following three implementation manners:
  • the first method uses an enhanced wireless access network to enable the terminal device type and/or
  • the access capability is used to identify whether the terminal is an M2M terminal or an H2H terminal, and selects a corresponding core network for processing.
  • the virtual gateway logical network element is used to complete the selection of the core network, where the virtual gateway can be integrated in the In the wireless access network, it can also be deployed as a separate entity.
  • the virtual gateway acts as a proxy server, which is located between the wireless access network and the core network, and all relevant information of the wireless access network is sent to the virtual gateway. ⁇
  • the network element is a radio access network
  • the foregoing step S1106 may further include the following processing:
  • the radio access network selects a corresponding first core network address for the terminal device according to the relationship information of the pre-configured terminal device identity and the M2M core network; (2) the radio access network according to the first core network address An access request is initiated to the corresponding M2M core network.
  • the wireless access network needs to be enhanced to enable it to select the existing core network and the M2M core network for the H2H terminal and the M2M terminal respectively. Make the necessary process descriptions for it.
  • FIG. 12 is a schematic diagram of a process for attaching an MTC UE to a M2M core network through an existing wireless access network according to an example 1 of the present invention, as shown in FIG.
  • Step S 1202 the MTC UE initiates an attach request message (for example, an access request message) to the radio access network, and needs to expand parameters in the attach request message.
  • an attach request message for example, an access request message
  • the device type indication parameter may be a device type indicating whether the device is a machine type device (MTC device) or a mobile phone type device (H2H device).
  • MTC device machine type device
  • H2H device mobile phone type device
  • the device type can also be extended to define different types of machine type devices or different types of mobile phone type devices, which can be defined according to the operator's needs; for example, the device type of the mobile phone type device may have a default parameter of null; preferably, the device type indication
  • the parameter may also be a device access capability, indicating whether it is a machine-like communication capability or a mobile-type communication capability, and the relevant parameters may be extended in a field of the terminal network capability.
  • the device access capability can also be extended to define different types of machine-type device access capabilities or different types of mobile phone-type device access capabilities, which can be based on operator requirements; for example, device access capabilities of mobile phone devices can be default parameters Empty; in step S1204, the radio access network determines whether the device is an M2M device or an H2H device according to the device information parameter, and then selects a corresponding core network; if it is an H2H device terminal, the radio access network selects an existing core network; In the case of an M2M device terminal, the wireless access network selects the M2M core network.
  • Step S 1206 The radio access network sends an attach request to the selected M-SGSN, where the attach request carries important information such as an address of the radio access network, an identifier of the UE, and a device type of the UE.
  • Step S1208 After receiving the attach request of the MTC UE, the M2M core network requests authentication data from the HLR, authenticates the MTC UE, and then initiates a location update request to the HLR, and downloads the user subscription data from the HLR, if the MTC UE does not have The access restriction and other issues allow the MTC UE to attach and perform subsequent attach procedures (for example, the M-SGSN can apply to the M-GGSN to establish a PDP context, etc.).
  • Step S1210 The M2M core network allows the MTC UE to access, and returns an attach accept message to the radio access network.
  • 13 is a schematic diagram of a process of attaching an MTC UE to an M2M core network through an existing radio access network according to the second embodiment of the present invention, as shown in FIG. 13, in the EPS network, The M2M core network is superimposed in the existing core network to share the existing wireless access network.
  • the radio access network can determine whether the access device is an H2H device or an M2M device by using the terminal device type and/or the access capability, and then select a corresponding core network address to complete the subsequent access process.
  • the foregoing process mainly includes the following processing (step S 1302 - step S 1312 ): Step S 1302, the UE initiates a network attach request message to the eNodeB in order to access the EPS network, where the request message carries the IMSI, the device type indication, and the UE Device type indication information (device type indication parameter) such as network access capability, indication of requesting IP allocation; device type indication information may be device type, indicating whether it is a machine type device (MTC device) or a mobile phone type device (H2H device).
  • MTC device machine type device
  • H2H device mobile phone type device
  • the device type can also be extended to define different types of machine type devices or different types of mobile phone type devices. This can be defined according to the operator's requirements; for example, the device type of the mobile phone type device can be empty by default; the device type indication information can also be It is the device access capability, indicating whether it is a machine-like communication capability or a mobile-type communication capability.
  • the relevant parameters can be extended in the field of the terminal network capability.
  • the device access capability can also be extended to define different types of machine-type device access capabilities or different types of mobile phone-type device access capabilities, which can be based on operator requirements; for example, device access capabilities of mobile phone devices can be default parameters Empty; Step S 1304, the eNodeB needs to select a core network for the UE.
  • the eNodeB determines whether the device is an M2M device or an H2H device according to the device information parameter, and then selects a corresponding core network. If it is an H2H device terminal, the radio access network selects an MME in the existing core network; if it is an M2M device terminal, the wireless device The access network selects the M-MME in the M2M core network. Step S1306, the eNodeB selects an M-MME for the UE, and then forwards the attach request to the MME, and also obtains important information such as an access address of the eNodeB, an identifier of the UE, and a device type of the UE. Carry it to the M-MME.
  • Step S1308 After receiving the attach request of the MTC UE, the M-MME requests the authentication data from the HSS to authenticate the MTC UE. Then, the location update request is initiated to the HSS, and the user subscription data is downloaded from the HSS. If the MTC UE has no access restriction and the like, the MTC UE is allowed to attach, and the subsequent attach procedure is performed, and the M-SGW/M-PGW is notified to establish the MTC UE. An EPS default bearer.
  • step S 1310 the M-MME in the M2M core network sends an attach accept response to the eNodeB, indicating that the UE's request to attach to the network has been accepted, and carries the Serving GW address and the Tunnel Endpoint Identifier (TEID);
  • step S 1312 The eNodeB sends a voice bearer setup request to the UE, requesting the UE to save important information about the bearer establishment, and opening the corresponding port. After receiving the radio bearer setup response of the MTC UE, the eNodeB notifies the MME that the attach procedure is completed.
  • FIG. 12 and FIG. 13 are only described by taking an attach (access) process as an example, and can be applied to other business processes without conflict.
  • the M2M core network is superimposed in the existing core network, and the existing wireless access network is shared.
  • the wireless access network can determine whether the access device is an H2H device or an M2M device by using the terminal device type or the access capability, and then select a corresponding core network address to complete the subsequent access process, thereby achieving the core network resources of the existing network.
  • the foregoing step S1106 may further include the following processing:
  • the virtual gateway selects a corresponding second core network address for the terminal device according to the relationship information between the pre-configured terminal device and the M2M core network.
  • the virtual gateway may further include The following processing:
  • the radio access network receives the access request message from the terminal device and requests the second core network address from the virtual gateway.
  • the virtual gateway sends the second core network address to the wireless access network
  • the radio access network initiates an access request to the corresponding M2M core network according to the second core network address.
  • the radio access network is changed little.
  • the solution needs to add a logical network element of the virtual gateway, and the virtual gateway logical network element is used to complete the core network.
  • the network element in FIG. 11 is the virtual gateway logical network element (V-GW), and the V-GW can have the capability to distinguish the H2H terminal from the M2M terminal and the core network address to the existing wireless access network.
  • V-GW virtual gateway logical network element
  • the necessary process descriptions are given below.
  • 14 is a schematic flow chart of an MTC UE attaching to an M2M core network through an existing wireless access network in a GPRS network according to Example 3 of the present invention.
  • the core network M2M core network in the core network shares the existing wireless access network.
  • the radio access network queries the V-GW for the access address of the core network, and the V-GW can determine whether the device is an H2H device or not by using related information carried by the terminal, such as IMSI, MSISDN, APN, device type, and access capability.
  • the M2M device selects the corresponding core network address (ie, the second core network address) to complete the subsequent access process.
  • step S 1402 the MTC UE initiates an attach request message (access request message) to the radio access network, where the attach request message needs to carry the MTC UE Identification, for example, IMSI, MSISDN, etc.
  • the parameter may also be extended to increase the device information parameter.
  • step S 1404 If the V-GW is integrated in the radio access network, the V-GW will identify the MTC UE identifier (eg, IMSI, MSISDN) and device information in the attached message. Indicate the device type and access capability in the parameter to determine whether the device is an M2M device or an H2H device, and then select the corresponding core network.
  • MTC UE identifier eg, IMSI, MSISDN
  • the V-GW selects an existing core network address to provide to the radio access network; if it is an M2M device terminal, the V-GW selects the M2M core network to provide the radio access network.
  • the radio access network sends an address request to the V-GW after receiving the attach request of the MTC UE, and carries the information about the UE (for example, the identifier of the UE, Indicates the device type information of the UE, etc.;).
  • the V-GW determines whether the device is an M2M device or an H2H device according to the indication of the MTC UE in the addressed message (for example, IMSI, MSISDN), the device type in the device information parameter, and the access capability, and then selects whether the device is an M2M device or an H2H device.
  • the corresponding core network If it is an H2H device terminal, the V-GW selects the existing core network address to provide to the radio access network; if it is an M2M device terminal, the V-GW selects the M2M core network to provide to the radio access network; the V-GW connects to the radio access;
  • the incoming network returns the address of the selected core network.
  • Step S1406 The radio access network sends an attach request to the selected M-SGSN, where the attach request carries important information such as an address of the radio access network, identity information of the UE, and device type of the UE.
  • Step S1408 After receiving the attach request of the MTC UE, the M2M core network requests authentication data from the HLR, authenticates the MTC UE, and then initiates a location update request to the HLR, and downloads the user subscription data from the HLR, if the MTC UE does not The access restriction and other issues allow the MTC UE to attach and perform subsequent attach procedures. If the M-SGSN can apply to the M-GGSN for establishing a PDP context.
  • Step S 1410 the M2M core network allows the MTC UE to access, and returns an attach accept message to the radio access network.
  • 15 is a schematic flowchart of an attach process of an MTC UE to an M2M core network through an existing radio access network in an EPS network according to an example 4 of the present invention, as shown in FIG. 15, in an EPS network, There is a core network superimposed M2M core network to share the existing wireless access network.
  • the radio access network eNodeB queries the V-GW for the access address of the core network, and the V-GW can identify the H2H device by using related information (for example, IMSI, MSISDN, APN, device type, access capability, etc.) carried by the terminal. Or the M2M device, and then select the corresponding core network address to complete the subsequent access process.
  • the foregoing process includes the following processing (step S1502 - step S 1512 ): Step S 1502, the UE initiates a network attach request to the eNodeB to access the EPS network, and carries the IMSI, the APN, the device type indication, and the network connection of the UE.
  • Step S1504 the eNodeB needs to select a core network for the UE to serve. If the V-GW is integrated in the eNodeB, the V-GW judges according to the indication of the MTC UE in the attached message (such as IMSI, MSISDN), or APN, or the device type and access capability in the device information parameter. Whether the device is an M2M device or an H2H device, then select the corresponding core network.
  • the indication of the MTC UE in the attached message such as IMSI, MSISDN), or APN
  • the V-GW selects the MME address of the existing core network to provide the radio access network eNodeB; if it is an M2M device terminal, the V-GW selects the M-MME address of the M2M core network to provide the radio access.
  • Network eNodeB if the V-GW is outside the radio access network eNodeB, the eNodeB sends an address request to the V-GW after receiving the attach request of the MTC UE, and carries related information of the UE, such as the identifier of the UE, the APN, and the UE. Device information and other instructions).
  • the V-GW determines whether the device is an M2M device or an H2H device according to an indication of the MTC UE in the addressed message (eg, IMSI, MSISDN), APN, device type in the device information parameter, access capability, and the like. Select the appropriate core network. If it is an H2H device terminal, the V-GW selects the MME address of the existing core network to provide to the eNodeB; if it is an M2M device terminal, the V-GW selects the M-MME address of the M2M core network to provide to the eNodeB; the V-GW to the eNodeB Returns the address of the selected core network.
  • an indication of the MTC UE in the addressed message eg, IMSI, MSISDN
  • APN device type in the device information parameter, access capability, and the like.
  • step S1506 the eNodeB selects an M-MME that is the monthly service for the MTC UE, and then forwards the attach request to the M-MME, and also carries the important information such as the access address of the eNodeB and the identity of the UE.
  • the M-MME The M-MME.
  • Step S1508 After receiving the attach request of the MTC UE, the M-MME requests the authentication data from the HSS to authenticate the MTC UE. Then, the location update request is initiated to the HSS, and the user subscription data is downloaded from the HSS.
  • the MTC UE If the MTC UE has no access restriction and the like, the MTC UE is allowed to attach, and the subsequent attach procedure is performed, and the M-SGW/M-PGW is notified to establish the MTC UE.
  • the M-MME in the M2M core network sends an attach accept response to the eNodeB, indicating that the UE's request to attach to the network has been accepted, carrying the Serving GW address and the TEID (Tunnel Endpoint Identifier)! Step S 1512.
  • the eNodeB sends a voice bearer setup request to the UE, and the UE is required to save the important information about the bearer setup, and the corresponding port is opened.
  • the eNodeB After receiving the radio bearer setup response of the MTC UE, the eNodeB notifies the MME that the attach process is complete. 14 and FIG. 15 are only described by taking an attach (access) process as an example, and can be applied to other business processes without conflicts.
  • the M2M core network is superimposed on the existing core network.
  • the radio access network eNodeB queries the V-GW for the access address of the core network, and the V-GW can pass related information carried by the terminal (for example, IMSI, MSISDN, APN, device type, and connection). Incoming ability, etc.) to determine whether it is an H2H device or an M2M device, and then select the corresponding The core network address completes the subsequent access process.
  • the step S1106 may further include the following processing: (1) the virtual gateway is configured according to the following method: Corresponding relationship between the pre-configured terminal device identity and the M2M core network, and selecting a corresponding third core network address for the terminal device;
  • the virtual gateway initiates an access request to the corresponding M2M core network according to the third core network address.
  • the following processing may be further included: the virtual gateway receives an access acceptance response from the M2M core network; and the virtual gateway returns the access acceptance response to the wireless connection.
  • the virtual gateway forwards the signaling message of the interaction between the subsequent radio access network and the M2M core network.
  • the radio access network is not modified.
  • the solution needs to add a logical network element of the virtual gateway, and the virtual gateway also uses the network element to Complete the selection of the core network and complete the relevant signaling interaction between the radio access network and the core network.
  • the V-GW needs to be able to distinguish between the H2H terminal and the M2M terminal and select the corresponding core network address (ie, the third core network address).
  • the V-GW is equivalent to the core network configured internally. All the signaling that the radio access network needs to send to the core network is directly sent to the V-GW, which is forwarded by the V-GW to the corresponding network. Core network.
  • the V-GW is equivalent to the radio access network.
  • 16 is a schematic flow chart of an MTC UE attaching to an M2M core network through an existing wireless access network in a GPRS network according to Example 5 of the present invention, as shown in FIG. 16, in the GPRS network, There is a core network superimposed M2M core network to share the existing wireless access network.
  • the radio access network After receiving the attach request of the MTC UE, the radio access network forwards the attach request to the V-GW, and the V-GW can use the related information (such as IMSI, MSISDN, APN, device type, access capability, etc.) carried by the terminal. It is determined whether the device is an H2H device or an M2M device, and then the corresponding core network address is selected, and an attach request is sent to the selected core network. After the core network completes the attach related process, the MTC UE sends an attach accept message to the V-GW, and the V-GW switches. Send to the wireless access network to complete the subsequent access process.
  • the related information such as IMSI, MSISDN, APN, device type, access capability, etc.
  • Step S1602 The MTC UE initiates an attach request message to the radio access network, where the attach message needs to carry the identifier of the MTC UE (such as the IMSI). , MSISDN, etc.), can also be extended parameters, increase device information parameters.
  • Step S1604 The radio access network selects a V-GW of one month for the MTC UE, and forwards the attach request to the V-GW.
  • the V-GW can be physically integrated with the radio access network or configured as a physical entity.
  • Step S 1606 The V-GW identifies the identifier of the MTC UE in the attached message (such as IMSI,
  • the V-GW selects the existing core network. Address; if it is an M2M device terminal, the V-GW selects the M2M core network address.
  • Step S1608 the V-GW selects an M2M core network that is an MTC UE, and then sends an attach request to the selected M-SGSN.
  • the attach request carries the address of the V-GW, the identifier of the UE, and the device type of the UE. And other important information.
  • Step S1610 After receiving the attach request of the MTC UE, the M2M core network requests authentication data from the HLR to authenticate the MTC UE. Then, the location update request is initiated to the HLR, and the user subscription data is downloaded from the HLR. If the MTC UE has no access restriction and the like, the MTC UE is allowed to attach, and the subsequent attachment process is performed. For example, the M-SGSN may apply to the M-GGSN to establish a PDP. Context and other operations). Step S1612, the M2M core network allows the MTC UE to access, and returns an attach accept message to the V-GW. Step S 1614, the V-GW forwards the attach accept message to the radio access network.
  • Step 4 S 1616, the radio access network returns a Attach Accept message, notifying the MTC UE that it has attached to the GPRS network.
  • 17 is a schematic diagram of a process for attaching an MTC UE to an M2M core network through an existing radio access network in an EPS network according to the sixth embodiment of the present invention, as shown in FIG. 17, in the EPS network, The M2M core network is superimposed in the existing core network, and the existing radio access network (eNodeB) is shared. After receiving the attach request of the MTC UE, the eNodeB forwards the attach request to the V-GW, and the V-GW can use the related information carried by the terminal (such as IMSI, MSISDN, APN, device type, access capability, etc.
  • the related information carried by the terminal Such as IMSI, MSISDN, APN, device type, access capability, etc.
  • Step S 1702 The UE initiates a network attach request to the eNodeB to access the EPS network, where the request carries the IMSI, the APN, and the device type. Information such as indication, network access capability of the UE, indication of requesting allocation of IP, and the like.
  • Step S 1704 The eNodeB selects a V-GW for one month for the MTC UE, and forwards the attach request to the V-GW.
  • the V-GW can be physically integrated with the radio access network, or can be configured as a physical entity separately, that is, an independent network element located outside the radio access network.
  • Step S 1706 The V-GW determines, according to the identifier (eg, IMSI, MSISDN) of the MTC UE in the attach message, or the APN, or the device type, access capability, and the like in the device information parameter, whether the device is an M2M device or H2H device, then select the corresponding core network.
  • the identifier eg, IMSI, MSISDN
  • Step S1708 After selecting an M-MME for the MTC UE, the V-GW forwards the attach request to the MME, and simultaneously adds important information such as the V-GW access address and the UE identifier. Carry it to the MME.
  • Step S1710 After receiving the attach request of the MTC UE, the M-MME requests the authentication data from the HSS to authenticate the MTC UE. Then, the location update request is initiated to the HSS, and the user subscription data is downloaded from the HSS.
  • the MTC UE If the MTC UE has no access restriction and the like, the MTC UE is allowed to attach, and the subsequent attach procedure is performed, and the M-SGW/M-PGW is notified to establish the MTC UE.
  • An EPS default bearer In step S1712, the M-MME in the M2M core network sends an attach accept response to the V-GW, indicating that the UE's request to attach to the network has been accepted, carrying the Serving GW address and the TEID (Tunnel Endpoint Identifier, the port identifier); .
  • the V-GW forwards the attach accept response to the radio access network eNodeB.
  • Step S1716 After receiving the attach accept response, the eNodeB sends a voice bearer setup request to the UE, requesting the UE to save the important information that is set up, and open the corresponding port. After receiving the radio bearer setup response of the MTC UE, the eNodeB notifies the completion of the attach procedure.
  • FIG. 16 and FIG. 17 are only described by taking an attach (access) process as an example, and can be applied to other business processes without conflict.
  • the V-GW is located between the radio access network and the core network and is responsible for forwarding related signaling information. According to the above embodiment, the core network is superimposed in the existing core network, and the existing wireless access network is shared.
  • the radio access network After receiving the attach request of the MTC UE, the radio access network forwards the attach request to the V-GW, and the V-GW can use the related information (for example, IMSI, MSISDN, APN, device type, access capability, etc.) carried by the terminal.
  • the related information for example, IMSI, MSISDN, APN, device type, access capability, etc.
  • the MTC UE After the core network completes the attach-related process, the MTC UE sends an attach accept message to the V-GW, and the V-GW forwards it to the radio access network eNodeB to complete the subsequent access process.
  • the network operator when a large number of M2M terminals access the network, the network operator can deploy a dedicated M2M core network to meet the M2M service requirements.
  • the wireless access network may identify the M2M terminal by using the device type or/and the access capability and select the corresponding M2M core network, and the wireless access network may also identify the M2M terminal through the virtual gateway and select the corresponding
  • the M2M core network achieves the effect of not occupying the core network resources of the existing network, optimizing the network flow, and satisfying the requirements of the M2M application.
  • the computing device may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Perform the steps shown or described, or separate them into individual integrated circuit modules, or make multiple modules or steps in them Implemented as a single integrated circuit module.
  • 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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Abstract

本发明公开了一种M2M核心网络的接入实现方法及装置。在上述方法中，网元接收携带有设备身份指示信息的接入请求消息，其中，该接入请求消息由终端设备发起；网元根据设备身份指示信息确定终端设备为M2M设备；网元为终端设备选择对应的M2M核心网络以实现终端设备的接入。根据本发明提供的技术方案，可以使现有网络不需要增强及大量扩容，仍然为现有的H2H设备提供服务的同时，也可以满足M2M业务需求。

Description

机器到机器核心网络的接入实现方法 ^置 技术领域 本发明涉及通信领域， 具体而言， 涉及一种机器到机器 （Machine to Machine, 简称为 M2M )核心网络的接入实现方法及装置。 背景技术 目前， M2M的通信业务已逐渐得到广泛应用， 例如， 应用于物流系统、 远程抄表、 智能家居等。 M2M月艮务商主要使用现有的无线网络开展 M2M业 务， 例如， 通用分组无线业务 ( General Packet Radio service , 简称为 GPRS ) 网络、 演进分组系统（ Evolved Packet System, 简称为 EPS )网络等 PS网络。 由于 M2M业务和人与人之间的通信 ( Human to Human, 简称为 H2H )业务 存在明显的差异性， 因此， 需要对网络部署进行必要的优化， 以满足 M2M 应用的同时获得最佳的网络管理与网络通讯质量。
GPRS网络是一个基于包交换的第二代移动通信网络， 在第三代移动通 信系统中 GPRS演进为通用移动通信系统分组交换 （ Universal Mobile Telecommunication system Packet Switch, 简称为 UMTS PS )。 图 1是才艮据现 有技术中的 UMTS PS的网络架构示意图， 如图 1所示， 该网络架构中包含 以下网元： 无线网络系统（ Radio Network system, 简称为 RNS ), RNS中包含节点 B ( NodeB ) 与无线网络控制器 （ Radio Network Controller, 简称为 RNC ), 其中， NodeB为终端提供空口连接； RNC主要用于管理无线资源以及控制 NodeB。 RNC与 NodeB 之间通过 lub 口连接， 终端通过 RNS接入通用移动 通信系统 ( Universal Mobile Telecommunication system , 简称为 UMTS ) 的 分组域核心网 （ Packet Core ); 服务 GPRS支持节点 （ Serving GPRS Support Node, 简称为 SGSN ), 通 过 Iu 口与 RNS 相连， 用于保存用户的路由区位置信息， 负责安全和接入控 制； 网关 GPRS支持节点 （ Gateway GPRS Support Node, 简称为 GGSN ), 在内部通过 Gn口与 SGSN相连， 用于负责分配终端的 IP地址和实现到外部 网络的网关功能； 归属位置寄存器（ Home Location Register, 简称为 HLR ), 通过 Gr口与 SGSN相连， 通过 Gc口与 GGSN相连， 用于保存用户的签约数据和当前所 在的 SGSN地址； 分组数据网络 ( Packet Data Network, 简称为 PDN ),通过 Gi口与 GGSN 相连， 用于为用户提供基于分组的业务网。 在图 1中， 机器类型通信（Machine Type Communication, 简称为 MTC ) 用户设备 ( User Equipment, 简称为 UE )需要通过 GPRS网络向 MTC Server 或其它的 MTC UE传输数据信息。 GPRS网络为此次传输建立 RNC-SGSN - GGSN之间的隧道， 隧道基于 GPRS 隧道协议 （ GPRS Tunneling Protocol, 简称为 GTP ), 数据信息通过 GTP隧道实现可靠传输。 系统架构演进 ( System Architecture Evolution , 简称为 S ΑΕ ) 的提出是 为了使演进的分组网 （ Evolved Packet System, 简称为 EPS )提供更高的传输 速率、更短的传输延时、优化分组，及支持演进的 UTRAN ( Evolved UTRAN, 简称为 E-UTRAN )、 UTRAN, 无线局 i或网 （ Wireless Local Area Network, 简称为 WLAN ) 及其他非 3GPP的接入网络之间的移动性管理。 图 2是根据现有技术中的 EPS的网络系统架构示意图， 如图 2所示， 其 中， 演进的无线接入网 （ Evolved Radio Access Network , 简称为 E-RAN ) 中 包含的网元演进节点 B ( Evolved NodeB , 简称为 eNodeB ) 用于为用户的接 入提供无线资源； 分组数据网 （ Packet Data Network, 简称为 PDN ) 是为用 户提供业务的网络； EPC提供了更低的延迟， 并允许更多的无线接入系统接 入， 其包括如下网元： 移动管理实体 （Mobility Management Entity, 简称为 MME ), 是控制面 功能实体， 临时存储用户数据的服务器， 负责管理和存储 UE的上下文 （例 如， 用户标识、 移动性管理状态、 用户安全参数等）， 为用户分配临时标识， 当 UE常驻该跟踪区域或者该网络时， 负责对该用户进行鉴权。 服务网关 （ Serving Gateway, 简称为 SGW或 S-GW ), 是一个用户面实 体， 负责处理用户面数据路由， 终结处于空闲 （ ECM_IDLE ) 状态的 UE的 下行数据。 管理和存储 UE的 SAE承载 （bearer ) 上下文 （例如， IP承载业 务参数和网络内部路由信息等）。 SGW是 3GPP系统内部用户面的锚点， 一 个用户在一个时刻只能有一个 SGW。 分组数据网网关（ PDN Gateway , 简称为 PGW或 P-GW )是负责 UE接 入 PDN的网关， 也是 3GPP和非 3GPP接入系统的移动性锚点， 分配用户 IP 地址， PGW的功能还包括策略实施、 计费支持。 用户在同一时刻能够接入 多个 PGW。 策略与计费实施功能实体 （ Policy and Charging Enforcement Function, 简称为 PCEF ) 也位于 PGW中。 策略与计费规则功能实体 （ Policy and Charging Rules Function, 简称为 PCRF ), 负责向 PCEF提供策略控制与计费规则。 归属用户服务器（ Home Subscriber Server, 简称为 HSS ), 负责永久存储 用户签约数据， HSS存储的内容包括 UE的国际移动用户识别码（ International Mobile Subscriber Identification, 简称为 IMSI ), PGW的 IP地址。 在物理上， 上述 SGW和 PGW可能合为一体， EPC系统用户面网元包 括 SGW和 PGW。
MTC服务器主要负责对 MTC用户设备 （ MTC UE ) 的信息釆集和数据 存储 /处理等工作， 并可对 MTC UE进行必要的管理。
MTC UE通常负责收集若千釆集器的信息， 并通过 RAN节点接入核心 网， 与 MTC Server交互数据。 在图 2 中， MTC UE需要通过 EPS网络向 MTC Server或其它的 MTC UE 传输数据信息。 SAE网络为此次传输建立 SGW-PGW之间的 GTP隧道， 数 据信息通过 GTP隧道实现可靠传输。 图 3是根据现有技术中的 UE接入到 EPS网络进行附着过程的流程示意 图，如图 3所示，该相关附着流程主要包括以下处理（步骤 S301-步骤 S318 ): 步骤 S301 , UE为了接入到 SAE网络， 向 eNodeB发起网络附着请求， 该请求中携带了 IMSI、 UE的网络接入能力、 请求分配 IP的指示等信息； 步骤 S302, eNodeB为 UE选择一个为之月艮务的 MME, 并将附着请求转 发到该 MME, 同时将 UE的标识等重要信息也携带给该 MME; 步骤 S303 , MME向 HSS发送鉴权数据请求消息（含 IMSI ), HSS首先 判断 IMSI对应的签约数据， 如果查找不到任何签约或者 IMSI已被列入黑名 单，则 HSS向 MME返回鉴权数据响应并携带合适的错误原因；如果找到 IMSI 对应的签约数据， 则 HSS向 MME返回鉴权数据响应消息 （含鉴权向量）； MME执行鉴权流程以-险证终端 IMSI的合法性， 并执行安全模式流程以 启用安全连接。 步骤 S304, MME向归属网的 HSS发送位置更新请求消息以告知 UE当 前所接入的区 其中， 该请求消息中携带有 MME的标识、 UE的标识； 步骤 S305 , HSS根据 UE的标识查找出 UE的签约用户数据， 并将其发 送给 MME，其中，用户数据中主要包含缺省接入点名称（ Access Point Name , 简称为 ΑΡΝ )、 带宽大小等信息； 需要说明的是， ΜΜΕ接收到用户数据，检查 UE是否被允许接入到网络， 向 HSS返回接收用户响应；若 ΜΜΕ发现 UE有漫游限制或接入限制等问题， ΜΜΕ将禁止 UE附着， 并通知 HSS。 步骤 S306, HSS向 MME发送确认位置更新响应； 步骤 S307, MME为 UE选择一个 S-GW, 并向其发送建立默认承载的 请求， 其中， 在该请求中包含 MME告知 S-GW必要的信息， UE的标识、 MME的标识、 为 UE分配 IP地址的指示、 缺省带宽信息、 PDN GW地址等； 步骤 S308, S-GW向 PDN GW发送建立默认承载的请求， 其中， 在该 请求中包含 S-GW告知 PDN GW必要的信息， S-GW的地址、缺省带宽信息、 为 UE分配 IP地址的指示等； 步骤 S309, 如有必要， PDN GW向 PCRF请求为该 UE配置策略和计费 规则、 决策信息； 步骤 S310 , PDN GW才艮据 PCRF返回的策略和计费决策信息， 建立缺省 载， 并向 S-GW返回 载建立响应； 步骤 S311 , S-GW向 ΜΜΕ发送默认 载建立的响应； 步骤 S312, MME向 eNodeB发送附着接受响应， 表明 UE附着到网络 的请求已被接受,其中，该响应携带 Serving GW地址与隧道端口标识（ Tunnel Endpoint Identifier, 简称为 TEID ); 步骤 S313 , eNodeB向 UE发送语音承载建立请求， 要求 UE保存承载 建立的重要信息，并开放相应的端口，其中该消息携带有，承载网络 ID、 PDN GW地址、 分配给 UE的 IP地址、 带宽信息等； 步骤 S314, UE向 eNodeB发送无线 载建立响应； 步骤 S315 , eNodeB通知 MME附着过程完成； 步骤 S316, MME向 S-GW发送更新 载请求，通知为 UE月艮务的 eNodeB 的标识、 地址； 步骤 S317, S-GW向 MME发送更新 载响应； 步骤 S318, 如果 PDN GW不是 HSS指定的， 则 MME向 HSS发送位置 更新请求， 通知给 HSS为 UE所服务的 PDN GW的地址信息， HSS更新该 信息。 图 4是根据现有技术中的 UE接入到 GPRS网络进行附着过程的的流程 示意图， 如图 4所示， 该相关附着流程主要包括以下处理 （步骤 S401-步骤 S407 ): 步骤 S401 , 用户首次通过 RNS 向 SGSN发起附着请求消息， 其中， 该 请求消息携带有附着类型、 IMSI等参数， RNS根据其负载情况， 以用户的 国际移动用户标识（ International Mobile subscriber Identity, 简称为 IMSI )为 请求标识将该消息路由到 SGSN; 步骤 S402, SGSN向 HLR请求对 IMSI进行鉴权， HLR才艮据 IMSI下载 鉴权认证参数， SGSN对 UE进行鉴权与认证； 步骤 S403 , SGSN发送位置更新请求给 HLR,该请求携带 SGSN号码与 地址、 IMSI等参数； 步骤 S404, HLR将与 IMSI相对应的签约数据下载给 SGSN, SGSN对
ME进行接入控制检查， 检查 UE是否有区域限制或接入限制， 然后返回插 入数据响应给 HLR。 步骤 S405 , HLR确认位置更新消息， 并发送位置更新响应给 SGSN。 在 此， 若位置更新请求被 HLR拒绝， SGSN将拒绝 UE的附着请求； 步骤 S406, SGSN为该用户分配分组临时移动用户识别号码
( Packet-Temporate Mobile subscriber Identify , 简称为 P-TMSI ), 然后将附着 接受消息发给 UE , 并携带为 UE分配的 P-TMSI等信息； 步骤 S407, 若 P-TMSI被更新， MS返回附着完成消息给 SGSN进行确 认， 完成 GPRS附着流程。 才艮据图 1及图 2中描述的现有 PS网络架构， 及图 3到图 4的现有终端 附着到网络的流程可知， 手机等现有的终端设备可以接收无线接入网络发出 的无线信号， 并通过无线接入网络附着到运营商网络中， 然后可以进行语音 通话等业务。
M2M业务是兴起不久并逐渐提上产业化日程的全球性机器类通信业务， 它通过在传感网中 M2M终端进行信息数据的釆集， 然后通过网络传输信息 数据的方式，使各行业及个人都可随时随地享受到信息服务的便利。 M2M可 以广泛应用于行业应用、 家庭应用、 个人应用等。 在行业应用中， 例；；。： 交 通监控、 智能电网、 楼宇告警、 海上救援、 自动售货机、 开车付费等。 在家 庭应用中， 例如： 自动 #、表、 温度控制等。 在个人应用中， 例如： 生命检测、 远端诊断等。
M2M的通信对象为机器对机器， 人对机器。 一个或多个机器之间的数 据通信定义为机器类型通信 （ Machine Type Communication, 简称为 MTC ), 这种情况下较少需要人机互动。 参与 MTC的机器， 定义为 MTC设备。 MTC 设备是 MTC用户的终端， 可通过 PLMN网络与 MTC设备、 MTC服务器进 行通信。 移动设备 ( Mobile Equipment, 简称为 ME ) 为 MTC设备附带功能 块， 该功能块用于将 MTC设备接入到无线网络 （例如 EPS网络、 GPRS网 络等）。 MTC服务器 （MTC Server )对 MTC设备进行管理和监控。 由于 MTC设备大都为不同场景下具体应用的设备， 其种类及数量都很 多， 例如， 自动抄表与生命检测使用的是不同的设备等。 同时 MTC设备因 应用不同还具有不同的特性，例如，电梯等升降机设备具有低移动性、 PS only 属性， 而监视、 警报设备除具有低移动性、 PS only外， 还具有低数据传输和 高可用性等特性。 因此 M2M设备与 H2H设备在应用方面有很多的不同， 具 体来说， ( 1 ) M2M终端是海量的， 数量远比 H2H终端多， 因此终端标识可 能就不能应用现有 H2H终端定义的 IMSI标识； （ 2 ) M2M终端主要针对氐 移动性的应用， 90%以上的 M2M终端是不移动的， 这样在移动性管理等方 面与现有技术有很大的不同（例如， 网络不需要频繁进行位置更新过程）；（ 3 ) M2M终端主要针对氐数据量的应用， 这与现有网络中提供的高带宽通道的 业务有很大区别，因此网络在低数据量的传输模式与现有技术有很大的不同。 ( 4 ) 其它方面， 如网络需要对 MTC设备组进行处理， 需要满足 MTC终端 各个特性的需求， 如时间控制、 MTC监控等， 这都要对现有网络进行优化才 可以满足。 随着 M2M应用日益广泛， M2M终端数量的海量发展及 M2M应用模式 与现有的 H2H应用存在的较大差异， 因此， 对于不同的运营商来说， 釆用现 有网络已难以满足 M2M业务的需求。 由于现有网络负荷无法满足未来 M2M 业务的需求， 运营商需要优化与部署网络， 以满足日益增长的 M2M应用需 求。 发明内容
4十对相关技术中由于 M2M终端数量的海量发展及 M2M应用模式与现 有的 H2H应用存在的较大差异， 而现有网络已难以满足 M2M业务需求的问 题，本发明的主要目的在于提供一种 M2M核心网络的接入实现方法及装置， 以解决上述问题至少之一。 根据本发明的一个方面， 提供了一种 M2M核心网络的接入实现方法。 根据本发明的 M2M核心网络的接入实现方法包括：， 网元接收携带有设 备身份指示信息的接入请求消息， 其中， 接入请求消息由终端设备发起； 网 元根据设备身份指示信息确定终端设备为 M2M设备； 网元为终端设备选择 对应的 M2M核心网络以实现终端设备的接入。 根据本发明的另一方面， 提供了一种 M2M核心网络的接入实现装置。 根据本发明的 M2M核心网络的接入实现装置包括：， 接收单元， 用于接 收携带有设备身份指示信息的接入请求消息， 其中， 接入请求消息由终端设 备发起； 确定单元， 用于根据设备身份指示信息确定终端设备为 M2M设备； 实现单元， 用于为终端设备选择对应的 M2M核心网络以实现终端设备的接 入。 通过本发明， 提供了一种专用的 M2M核心网络， 专门服务于 M2M业 务， 解决了相关技术中釆用现有网络已难以满足 M2M业务需求的问题， 进 而使现有网络不需要增强及大量扩容，仍然在满足为现有的 H2H设备提供服 务的同时， 也满足 M2M业务需求。 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是才艮据现有技术中 UMTSPS的网络系统架构示意图； 图 2是根据现有技术中的 EPS的网络系统架构示意图； 图 3是才艮据现有技术中的 MTC UE在 EPS网络进行附着过程的流程示 意图； 图 4是才艮据现有技术中的 MTC UE在 GPRS网络进行附着过程的流程示 意图； 图 5为根据本发明实施例的 M2M核心网络的接入实现装置的结构框图； 图 6是根据本发明优选实施例的 M2M核心网络的接入实现装置的结构 框图； 图 7是才艮据本发明实施例的在 GPRS网络中釆用 M2M核心网络共享无 线接入网络实现 M2M业务的架构一的示意图； 图 8是才艮据本发明实施例的在 GPRS网络中釆用 M2M核心网络共享无 线接入网络实现 M2M业务的架构二的示意图； 图 9是才艮据本发明实施例的在 EPS网络中釆用 M2M核心网络共享无线 接入网络实现 M2M业务的架构三的示意图； 图 10是才艮据本发明实施例的在 EPS网络中釆用 M2M核心网络共享无 线接入网络实现 M2M业务的架构四的示意图； 图 11是根据本发明实施例的 M2M核心网络的接入实现方法的流程示意 图； 图 12是才艮据本发明实例一的 MTC UE在 GPRS网络， 釆用方式一通过 现有无线接入网络向 M2M核心网络进行附着过程的流程示意图； 图 13是根据本发明实例二的 MTC UE在 EPS网络， 釆用方式一通过现 有无线接入网络向 M2M核心网络进行附着过程的流程示意图； 图 14是根据本发明实例三的 MTC UE在 GPRS网络， 釆用方式二通过 现有无线接入网络向 M2M核心网络进行附着过程的流程示意图； 图 15是根据本发明实例四的 MTC UE在 EPS网络， 釆用方式二通过现 有无线接入网络向 M2M核心网络进行附着过程的流程示意图； 图 16是根据本发明实例五的 MTC UE在 GPRS网络， 釆用方式三通过 现有无线接入网络向 M2M核心网络进行附着过程的流程示意图； 图 17是才艮据本发明实例六的 MTC UE在 EPS网络， 釆用方式三通过现 有无线接入网络向 M2M核心网络进行附着过程的流程示意图。 具体实施方式 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。 对于运营商来说， 部署网络满足 M2M业务有两种模式： 一种对现有网 络进行升级， 满足 M2M终端各类的应用需求， 但是代价是全网升级。 另一 种模式是在现有网络中， 叠力口专用的 M2M核心网络， 来专门处理 M2M业 务， 满足 M2M应用的各类需求。 根据本发明实施例， 提供了一种 M2M核心网络的接入实现装置。 在本发明实施例中， 釆用专用的 M2M核心网络来满足 M2M业务的需 求。 图 5是根据本发明实施例的 M2M核心网络的接入实现装置的结构框图。 如图 5所示， 该装置包括： 接收单元 1、 确定单元 2和实现单元 3。 接收单元 1 , 用于接收携带有设备身份指示信息的接入请求消息， 其中， 接入请求消息由终端设备发起； 确定单元 2 , 用于根据设备身份指示信息确定终端设备为 M2M设备； 实现单元 3 , 用于为终端设备选择对应的 M2M核心网络以实现终端设 备的接入。 对于现有网络中叠加的专用 M2M核心网络， 该装置可以实现 M2M终 端接入上述专用 M2M核心网络的目的， 可以使现有网络不需要增强及大量 扩容，仍然在满足现有的 H2H设备提供服务的同时，也满足 M2M业务需求。 其中， 上述设备身份指示信息包括但不限于以下至少之一： 设备类型信 息、设备接入能力信息、设备的标识信息（例如， 国际移动用户识别码（ IMSI ) 号段、 移动台国际 ISDN号码 （ MSISDN ) 号段、 接入点名称 （ APN ) )。 优选地， 上述网元可以为以下之一： 增强的无线接入网络、 虚拟网关。 其中， 增强的无线接入网络是指对现有无线接入网络进行增强， 增强后 的无线接入网络具有根据上述设备身份指示信息确定终端设备是否为 M2M 设备的能力。 上述装置实现 M2M终端接入 M2M核心网络的过程中， 包括但不限于 以下三种实现方式： 第一种方式， 上述装置可以是增强的无线接入网络， 能 根据终端设备类型和 /或接入能力来识别是 M2M终端还是 H2H终端， 并选 择相应的核心网络进行接入处理； 第二种方式， 上述装置还可以是虚拟网关 逻辑网元， 完成核心网络的选择， 其中， 该虚拟网关可以集成在无线接入网 络中， 也可以单独作为实体部署； 第三种方式， 上述装置还可以是虚拟网关， 虚拟网关作为代理服务器， 位于无线接入网络与核心网络之间， 无线接入网 络的所有相关信息都发给虚拟网关， 釆用虚拟网关选择相应的核心网络， 并 进行信令转发。 在具体的实施过程中， 根据装置的不同， 其实现单元 3包括的模块也不 同， 图 6是根据本发明优选实施例的 M2M核心网络的接入实现装置的结构 框图， 如图 6所示， 不同的装置进行说明： 对于第一种方式而言， 即， 上述装置是增强的无线接入网络 （例如， 对
EPS网络中的 eNodeB进行增强， 或者， 对 GPRS网络中 RNC进行增强）， 该装置的实现单元 3包括， 第一选择模块 30, 用于根据预先配置的终端设备 身份与 M2M核心网络的对应关系信息， 为终端设备选择对应的第一核心网 地址； 第一发送模块 32 , 用于才艮据第一核心网地址向对应的 M2M核心网络 发起接入请求。 对于第二种方式而言， 即， 上述装置为虚拟网关， 该装置的实现单元 3 包括， 第二选择模块 34 , 用于根据预先配置的终端设备身份与 M2M核心网 络的对应关系信息， 为终端设备选择对应的第二核心网地址； 第二发送模块 36 , 用于将第二核心网地址发送至无线接入网络； 第一接入请求模块 38 , 用 于才艮据第二核心网地址向对应的 M2M核心网络发起接入请求。 对于第三种方式而言， 即， 上述装置为虚拟网关， 该装置的实现单元 3 包括， 第三选择模块 40, 用于根据预先配置的终端设备身份与 M2M核心网 络的对应关系信息， 为终端设备选择对应的第三核心网地址； 第二接入请求 模块 42 , 用于才艮据第三核心网地址向对应的 M2M核心网络发起接入请求。 优选地， 对于第三种方式而言， 当上述装置为虚拟网关时， 则该装置相 当于代理服务器在无线接入网络与 M2M核心网络之间转发信令消息。 即， 虚拟网关将来自于无线接入网络的全部信令消息发送至 M2M核心网络， 虚 拟网关将来自于 M2M核心网络的全部信令消息发送至无线接入网络。 在上述三种实现方式中， 第一种方式无需对原有的系统架构作较大的改 动， 只需将现有无线接入网络进行增强， 增强后的无线接入网络能够根据终 端设备类型或 /与接入能力来识别是 M2M终端还是 H2H终端， 并选择相应 的核心网络进行处理。 同现与 GPRS或 EPS网络相比， 增加了专用的 M2M 核心网络， 专门负责 M2M终端的接入、 移动性管理与承载建立等核心网功 能。 第二种方式与第三种方式较第一种方式而言， 系统架构的改动较大， 下 面结合实施例进行描述。 图 7是才艮据本发明实施例的在 GPRS网络中釆用 M2M核心网络共享无 线接入网络实现 M2M业务的架构一的示意图。 如图 7所示， 与图 1中描述 的现有 GPRS网络相比， 增加了 M2M核心网络， 其中， 该 M2M核心网络 包括 M-SGSN与 M-GGSN。 其中， M-SGSN的功能与现有网络的 SGSN功能类似， 它也通过 Iu 口 与 RNS 相连， 用于保存用户的路由区位置信息， 负责安全和接入控制等。 但 M-SGSN仅负责 M2M业务， 不负责 H2H业务， 因此对于 H2H终端的移 动性管理等功能进行了简化， 同时对满足 M2M业务上功能进行了增强， 如 满足 M2M终端的氏移动性管理、 识别 M2M终端标识与组标识， 对接入进 行时间控制， 能对 M2M终端进行组管理， 满足 M2M终端的低数据量的传 输方式与特定的计费要求等功能要求。 其中， M-GGSN的功能与现有网络的 GGSN功能类似， 在内部通过 Gn 口与 M-SGSN相连， 用于负责分配终端的 IP地址和实现到外部网络的网关 功能。 但 M-GGSN仅负责 M2M业务， 不负责 H2H业务， 因此对于 H2H终 端的承载建立与计费等功能进行了优化， 同时对满足 M2M业务上功能进行 了增强， 如满足 M2M终端的组计费、 组的策略分配、 组的传输最大比特率 限制， 设备级的网络负荷控制， 低数据量传输等功能要求。 为满足 M2M核心网络与现有核心网络共享无线接入网络的要求， 需要 有一个逻辑网元来发现核心网络的地址， 因此在网络中设计一个虚拟网关 ( Virtual GW, 简称为 V-GW ) 充当该地址选择服务器， 即， 负责选择与终 端相对应的核心网络，具体而言， V-GW可以才艮据终端的 IMSI号段， MSISDN 号段、 APN (例如， MTC UE釆用全 i或名 MTC.TAI.MCC.MNC.3GPP.XXX )、 设备类型、 设备接入能力等指示判断该设备是否为 M2M设备， 然后选择相 应的核心网络地址。 V-GW是逻辑网元， 可以集成在无线接入网络中或单独 作为网元实体进行部署。 当 V-GW集成在无线接入网络中时， MTC UE发起 附着请求， V-GW可以根据设备标识等识别 MTC UE的设备是 H2H设备， 还是 M2M设备， 并由此选择核心网络地址， 然后无线接入网络可以将附着 请求发给相应的核心网络。 图 8是才艮据本发明实施例的在 GPRS网络中釆用 M2M核心网络共享无 线接入网络实现 M2M业务的架构二的示意图， 如图 8所示， 与架构一相比， 同样在现有 GPRS网络中， 增加了 M2M核心网络， M-SGSN与 M-GGSN。 M-SGSN与 M-GGSN的功能与架构一中描述的功能相同， 此处不再描述。 不同之处在于 V-GW的功能： 在架构一中， V-GW负责选择核心网络， 但是 在架构二中， V-GW位于无线接入网络与核心网络之间， 在无线接入网络中 只配置有 V-GW的地址，无线接入网络的所有信令都通过 V-GW转发到核心 网络。 而核心网络发给无线接入网络的所有信令也通过 V-GW转发给无线接 入网络。 V-GW作为代理服务器， 可以在终端附着时， 判断此终端是 M2M 终端还是 H2H终端， 然后选择相应的核心网络， 并将包括附着消息在内的所 有从无线接入网络中的信令消息都转发给已选择的核心网络。 V-GW可以集 成在无线接入网络中， 作为一个逻辑功能模块， 也可以单独作为一个网元实 体存在。 图 9是才艮据本发明实施例的在 EPS网络中釆用 M2M核心网络共享无线 接入网络实现 M2M业务的架构三的示意图， 如图 9所示， 与图 2中所描述 的现有 EPS网络相比， 增加了 M2M核心网络， 其中， M2M核心网络包括 M-MME与 M-SGW/M-PGW。 其中， M-MME的功能与现有 EPS网络的 MME功能类似， 它作为 M2M 核心网络中控制面功能实体及临时存储用户数据的服务器， 负责管理和存储 UE的上下文（例如， 用户标识、 移动性管理状态、 用户安全参数等）， 为用 户分配临时标识， 当 UE常驻在该跟踪区域或者该网络时， 负责对该用户进 行鉴权。 但 M-MME仅负责 M2M业务， 不负责 H2H业务， 因此对于 H2H 终端的移动性管理等功能进行了简化， 同时对满足 M2M业务上的功能进行 了增强， 例如， 满足 M2M终端的低移动性管理、 识别 M2M终端标识与组 标识， 对接入进行时间控制， 能对 M2M终端进行组管理， 满足 M2M终端 的低数据量的传输方式与特定的计费要求等功能要求。 其中， M-SGW/M-PGW的功能与现有的 EPS网络的 SGW/PGW功能类 似， M-SGW作为用户面锚点， 负责用户面数据路由的处理， 终结处于空闲 ( ECM IDLE ) 态的 UE的下行数据。 M-PGW作为 UE接入 PDN的网关， 负责用户 IP地址管理和存储 UE的 SAE承载 （ bearer )上下文， 同时还负责 策略实施及计费支持等功能实现。 但 M-SGW/PGW仅负责 M2M业务， 不负 责 H2H业务， 因此对于 H2H终端的 7 载建立与计费等功能进行了优化， 同 时对满足 M2M业务上功能进行了增强， 如满足 M2M终端的组计费、 组的 策略分配、 组的传输最大比特率限制， 设备级的网络负荷控制， 低数据量传 输等功能要求。 为满足 M2M核心网络与现有核心网络共享无线接入网络的要求， 需要 有一个逻辑网元来发现核心网络的地址， 因此在网络中设计了一个虚拟网关 ( Virtual GateWay, 简称为 V-GW ) 充当地址选择服务器， 负责选择与终端 相对应的核心网络，具体而言吗， V-GW可以才艮据终端的 IMSI号段， MSISDN 号段、 APN (例如， MTC UE釆用全 i或名 MTC.TAI.MCC.MNC.3GPP.XXX ) 等指示判断是否是 M2M设备， 然后选择相应的核心网络地址。 V-GW是逻 辑网元，可以集成在无线接入网络中或单独作为网元实体进行部署。当 V-GW 集成在无线接入网络中时， MTC UE发起附着请求， V-GW可以根据设备标 识等识另' J MTC UE的设备是 H2H设备， 还是 M2M设备， 并由此选择核心 网络地址， 然后无线接入网络可以将附着请求发给相应的核心网络。 图 10是才艮据本发明实施例的在 EPS网络中釆用 M2M核心网络共享无 线接入网络实现 M2M业务的架构四的示意图， 如图 10所示， 与图 9描述的 架构三相比， 在现有的 EPS网络中增加了 M2M核心网络， M-MME与
M-SGW/M-PGW。 M-MME与 M-SGW/M-PGW的功能与架构三中描述的功 能相同， 此处不再描述。 不同之处在于 V-GW的功能： 在架构三中， V-GW 负责选择核心网络。 而在架构四中， V-GW位于无线接入网络 eNodeB与核 心网络之间，在 eNodeB中只配置有 V-GW的地址， eNodeB的所有信令都通 过 V-GW转发到核心网络。且核心网络发给 eNodeB的所有信令也通过 V-GW 转发给无线接入网络。 V-GW作为代理月艮务器， 可以在终端附着时， 判断此 终端是 M2M终端还是 H2H终端， 然后选择相应的核心网络， 并将包括附着 消息在内的所有从无线接入网络中的信令消息都转发给已选择的核心网络。 V-GW可以集成在 eNodeB中， 作为一个逻辑功能模块， 也可以单独作为一 个网元实体存在。 根据本发明实施例， 还提供了一种 M2M核心网络的接入实现方法。 图 11是根据本发明实施例的 M2M核心网络的接入实现方法的流程示意 图， 如图 11所示， 该实现方法包括以下处理步骤 (步骤 S 1102-步骤 S 1106 ): 步骤 S 1102, 网元接收携带有设备身份指示信息的接入请求消息， 其中， 该接入请求消息由终端设备发起； 步骤 S 1104, 网元根据设备身份指示信息确定该终端设备为 M2M设备； 步骤 S 1106 , 网元为终端设备选择对应的 M2M核心网络以实现终端设 备的接入。 对于现有网络中叠加的专用 M2M核心网络， 釆用上述方法可以实现将 M2M终端接入上述专用 M2M核心网络的目的，可以使现有网络不需要增强 及大量扩容， 仍然满足为现有的 H2H设备提供服务的同时， 也满足 M2M业 务需求。 优选地， 网元包括但不限于以下之一： 无线接入网络、 虚拟网关。 例如， 上述网元还可以包括能够提供核心网地址和确定终端设备身份的 服务器。 设备身份指示信息包括以下至少之一： 设备类型信息、 设备接入能力信 息、 设备标识信息 （例如， IMSI、 MSISDN等）。 釆用上述方法实现 M2M终端接入 M2M核心网络的过程中， 包括但不 限于以下三种实现方式： 第一种方式， 釆用增强的无线接入网络， 使之能根 据终端设备类型和 /或接入能力来识别该终端是 M2M终端还是 H2H终端， 并选择相应的核心网络进行处理； 第二种方式， 釆用虚拟网关逻辑网元去完 成核心网络的选择， 其中， 该虚拟网关可以集成在无线接入网络中， 也可以 单独作为实体部署； 第三种方式， 虚拟网关作为代理服务器， 其位于无线接 入网络与核心网络之间， 无线接入网络的所有相关信息都发给虚拟网关， 釆 用虚拟网关选择相应的核心网络， 并进行信令消息转发。 优选地， 针对第一种方式而言， 即上述网元为无线接入网络， 则上述步 骤 S 1106可以进一步包括以下处理：
( 1 )无线接入网络根据预先配置的终端设备身份与 M2M核心网络对应 的关系信息， 为终端设备选择对应的第一核心网地址； ( 2 )无线接入网络才艮据第一核心网地址向对应的 M2M核心网络发起接 入请求。 才艮据上述三种实现方式中的第一种方式， 需要对无线接入网络进行一定 的增强，使之能够有能力为 H2H终端与 M2M终端分别选择现有核心网络与 M2M核心网络， 下面对其进行必要的流程描述。 图 12是才艮据本发明实例一的 MTC UE在 GPRS网络中釆用方式一通过 现有无线接入网络向 M2M核心网络进行附着过程的流程示意图，如图 12所 示， 在 GPRS网络中， 在现有核心网络中叠加 M2M核心网络， 共享现有无 线接入网络。 无线接入网络可以通过终端设备类型或接入能力判断该接入设 备是 H2H设备还是 M2M设备， 然后选择相应的核心网络地址， 完成后续的 接入过程。 该过程主要包括以下处理 (步骤 S 1202-步骤 S 1212 ): 步骤 S 1202, MTC UE向无线接入网络发起附着请求消息 （例如， 接入 请求消息），并需要在该附着请求消息中扩展参数，增加设备类型指示参数（即 设备类型指示信息）； 优选地， 设备类型指示参数可以是设备类型， 指示该设备是机器类设备 ( MTC设备）还是手机类设备（ H2H设备）。 设备类型也可以扩展定义不同 类型的机器类设备或不同类型的手机类设备， 这个可以根据运营商的需求定 义； 例如， 手机类设备的设备类型可以缺省参数为空； 优选地， 设备类型指示参数也可以是设备接入能力， 指示是机器类通信 能力还是手机类通信能力， 可以在终端网络能力的字段中扩展相关参数。 设 备接入能力也可以扩展定义不同类型的机器类设备接入能力或不同类型的手 机类设备接入能力， 这个可以根据运营商的需求； 例如， 手机类设备的设备接入能力可以缺省参数为空； 步骤 S 1204 , 无线接入网络根据设备信息参数， 判断此设备是 M2M设 备还是 H2H设备， 然后选择相应的核心网络， 如果是 H2H设备终端， 无线 接入网络就选择现有核心网络； 如果是 M2M设备终端， 无线接入网络就选 择 M2M核心网络。 步骤 S 1206, 无线接入网络将附着请求发给选择的 M-SGSN, 其中， 该 附着请求中携带无线接入网络的地址， UE的标识、 UE的设备类型等重要信 息。 步骤 S 1208, M2M核心网络接收到 MTC UE的附着请求后， 会向 HLR 请求鉴权数据， 对 MTC UE进行鉴权， 然后向 HLR发起位置更新请求， 从 HLR下载用户签约数据，若 MTC UE没有接入限制等问题，就允许 MTC UE 附着， 进行后续的附着过程（如 M-SGSN可以向 M-GGSN申请建立 PDP上 下文等操作）。 步骤 S 1210, M2M核心网络允许 MTC UE接入， 向无线接入网络返回 附着接受消息。 步 4聚 S 1212, 无线接入网络向返回附着接受消息， 通知 MTC UE已经附 着到 GPRS网络。 图 13是才艮据本发明实例二的 MTC UE在 EPS网络中釆用方式一通过现 有无线接入网络向 M2M核心网络进行附着过程的流程示意图，如图 13所示， 在 EPS网络中， 在现有核心网络中叠加 M2M核心网络， 共享现有无线接入 网络。 无线接入网络可以通过终端设备类型和 /或接入能力判断接入设备是 H2H设备还是 M2M设备， 然后选择相应的核心网络地址， 完成后续的接入 过程。 上述过程主要包括以下处理 （步骤 S 1302-步骤 S 1312 ): 步骤 S 1302, UE为了接入到 EPS网络， 向 eNodeB发起网络附着请求消 息， 其中， 该请求消息携带了 IMSI、 设备类型指示、 UE的网络接入能力、 请求分配 IP的指示等设备类型指示信息 （设备类型指示参数 )； 设备类型指示信息可以是设备类型， 指示是机器类设备（ MTC设备）还 是手机类设备 （H2H设备）。 设备类型也可以扩展定义不同类型的机器类设 备或不同类型的手机类设备， 这个可以根据运营商的需求定义； 例如， 手机类设备的设备类型可以缺省参数为空； 设备类型指示信息也可以是设备接入能力， 指示是机器类通信能力还是 手机类通信能力， 可以在终端网络能力的字段中扩展相关参数。 设备接入能 力也可以扩展定义不同类型的机器类设备接入能力或不同类型的手机类设备 接入能力， 这个可以根据运营商的需求； 例如， 手机类设备的设备接入能力可以缺省参数为空； 步骤 S 1304, eNodeB需要为 UE选择一个为之月艮务的核心网络。 eNodeB 根据设备信息参数， 判断该设备是 M2M设备还是 H2H设备， 然后选择相应 的核心网络， 如果是 H2H设备终端， 无线接入网络就选择现有核心网络中的 MME; 如果是 M2M设备终端， 无线接入网络就选择 M2M核心网络中的 M-MME。 步骤 S 1306, eNodeB为 UE选择好一个为之月艮务的 M-MME后， 然后将 附着请求转发到该 MME, 同时将 eNodeB的接入地址、 UE的标识、 UE的 设备类型等重要信息也携带给该 M-MME。 步骤 S 1308, M-MME接收到 MTC UE的附着请求后， 会向 HSS请求鉴 权数据， 对 MTC UE进行鉴权。 然后向 HSS发起位置更新请求， 从 HSS下 载用户签约数据， 若 MTC UE没有接入限制等问题， 就允许 MTC UE附着， 进行后续的附着过程， 通知 M-SGW/M-PGW为该 MTC UE建立一条 EPS默 认承载。 步骤 S 1310, M2M核心网络中的 M-MME向 eNodeB发送附着接受响应， 表明 UE的附着到网络的请求已被接受,携带 Serving GW地址与隧道端口标 ( Tunnel Endpoint Identifier, 简称为 TEID ); 步骤 S 1312, eNodeB向 UE发送语音承载建立请求， 要求 UE保存承载 建立的重要信息， 并开放相应的端口。 eNodeB接收到 MTC UE的无线 载 建立响应后， 就通知 MME附着过程完成。 需要说明的是， 图 12和图 13仅以附着 （接入） 流程为例进行描述， 在 不冲突的情况下， 还可以适用于其他业务流程。 才艮据上述两个实施例， 在现有核心网络中叠加 M2M核心网络， 共享现 有无线接入网络。 无线接入网络可以通过终端设备类型或接入能力判断接入 设备是 H2H设备还是 M2M设备， 然后选择相应的核心网络地址， 完成后续 的接入过程， 从而达到既不占用现网核心网络资源， 优化网络流程， 又可以 满足 M2M应用需求的效果。 优选地， 针对第二种方式而言， 即上述网元为虚拟网关， 则上述步骤 S 1106可以进一步包括以下处理：
( 1 )虚拟网关根据预先配置的终端设备身份与 M2M核心网络对应的关 系信息， 为终端设备选择对应的第二核心网地址； 具体实施过程中， 在执行上述步骤 （ 1 ) 之前， 还可以包括以下处理： 无线接入网络接收来自于终端设备的接入请求消息后向虚拟网关请求第二核 心网地址。
( 2 ) 虚拟网关将第二核心网地址发送至无线接入网络；
( 3 )无线接入网络才艮据第二核心网地址向对应的 M2M核心网络发起接 入请求。 具体地， 才艮据上述三种实现方式中的第二种方式， 对无线接入网络改动 较小， 此方案需要增加一个虚拟网关的逻辑网元， 釆用虚拟网关逻辑网元去 完成核心网络的选择， 即图 11中的网元为该虚拟网关逻辑网元 （V-GW ), V-GW能够有能力区分 H2H终端与 M2M终端并核心网络地址给现有无线接 入网络。 以下对其进行必要的流程描述。 图 14是根据本发明实例三的 MTC UE在 GPRS网络中釆用方式二通过 现有无线接入网络向 M2M核心网络进行附着过程的流程示意图，如图 14所 示， 在 GPRS网络中， 现有核心网络中叠力口 M2M核心网络， 共享现有无线 接入网络。 无线接入网络向 V-GW查询核心网络的接入地址， V-GW可以通 过终端携带的相关信息， 如 IMSI、 MSISDN、 APN、 设备类型、 接入能力等 指示来判别该设备是 H2H设备还是 M2M设备， 然后选择相应的核心网络地 址（即第二核心网地址）， 完成后续的接入过程。 上述过程包括以下处理（步 骤 S 1402-步 4聚 S 1412 ), 步骤 S 1402, MTC UE向无线接入网络发起附着请求消息 （接入请求消 息），其中，该附着请求消息中需要携带 MTC UE的标识，例如， IMSI、 MSISDN 等。 也可扩展参数， 增加设备信息参数； 步骤 S 1404, 若 V-GW集成在无线接入网络中， V-GW才艮据附着消息中 的 MTC UE的标识（例如， IMSI、 MSISDN )、 设备信息参数中的设备类型、 接入能力等指示， 来判断此设备是 M2M设备还是 H2H设备， 然后选择相应 的核心网络。 如果是 H2H设备终端， V-GW就选择现有核心网络地址提供给 无线接入网络； 如果是 M2M设备终端， V-GW就选择 M2M核心网络提供给 无线接入网络。 可选的，若 V-GW在无线接入网络的外部，无线接入网络接收到 MTC UE 的附着请求后， 向 V-GW发起寻址请求， 携带 UE的相关信息 （例如， UE 的标识、 UE的设备类型信息等指示；)。 V-GW才艮据寻址消息中的 MTC UE的 标识（例如， IMSI、 MSISDN )、 设备信息参数中的设备类型、 接入能力等指 示， 来判断此设备是 M2M设备还是 H2H设备， 然后选择相应的核心网络。 如果是 H2H设备终端， V-GW就选择现有核心网络地址提供给无线接入网络； 如果是 M2M设备终端， V-GW就选择 M2M核心网络提供给无线接入网络； V-GW向无线接入网络返回选择的核心网络的地址。 步骤 S 1406, 无线接入网络将附着请求发送给选择的 M-SGSN, 其中， 该附着请求中携带有无线接入网络的地址， UE的标识信息、 UE的设备类型 等重要信息。 步骤 S 1408, M2M核心网络接收到 MTC UE的附着请求后， 会向 HLR 请求鉴权数据， 对 MTC UE进行鉴权， 然后向 HLR发起位置更新请求， 从 HLR下载用户签约数据，若 MTC UE没有接入限制等问题，就允许 MTC UE 附着， 进行后续的附着过程， 如果 M-SGSN可以向 M-GGSN申请建立 PDP 上下文等操作。 步骤 S 1410, M2M核心网络允许 MTC UE接入， 向无线接入网络返回 附着接受消息。 步 4聚 S 1412, 无线接入网络向返回附着接受消息， 通知 MTC UE已经附 着到 GPRS网络。 图 15是根据本发明实例四的 MTC UE在 EPS网络中釆用方案二通过现 有无线接入网络向 M2M核心网络进行附着过程的流程示意图，如图 15所示， 在 EPS网络中， 在现有核心网络中叠加 M2M核心网络， 共享现有无线接入 网络。 无线接入网络 eNodeB向 V-GW查询核心网络的接入地址， V-GW可 以通过终端携带的相关信息 （例如， IMSI、 MSISDN、 APN、 设备类型、 接 入能力等指示）来判别是 H2H设备还是 M2M设备， 然后选择相应的核心网 络地址， 完成后续的接入过程。 上述过程包括以下处理 （步骤 S 1502-步骤 S 1512 ): 步骤 S 1502, UE为了接入到 EPS网络， 向 eNodeB发起网络附着请求， 在其中携带了 IMSI、 APN、 设备类型指示、 UE的网络接入能力、 请求分配 IP的指示等信息； 步骤 S 1504, eNodeB需要为 UE选择一个为之服务的核心网络。若 V-GW 集成在 eNodeB中， V-GW才艮据附着消息中的 MTC UE的标识 （如 IMSI、 MSISDN )、 或 APN、 或设备信息参数中的设备类型、 接入能力等指示， 来 判断此设备是 M2M设备还是 H2H设备， 然后选择相应的核心网络。 如果是 H2H设备终端， V-GW就选择现有核心网络的 MME地址提供给无线接入网 络 eNodeB; 如果是 M2M设备终端， V-GW就选择 M2M核心网络的 M - MME地址提供给无线接入网络 eNodeB。 可选的，若 V-GW在无线接入网络 eNodeB的外部， eNodeB接收到 MTC UE的附着请求后， 向 V-GW发起寻址请求， 携带 UE的相关信息（如 UE的 标识、 APN、 UE的设备信息等指示）。 之后， V-GW根据寻址消息中的 MTC UE的标识（如 IMSI、 MSISDN ), APN、设备信息参数中的设备类型、接入能力等指示， 来判断此设备是 M2M 设备还是 H2H设备，然后选择相应的核心网络。如果是 H2H设备终端， V-GW 就选择现有核心网络的 MME地址提供给 eNodeB; 如果是 M2M设备终端， V-GW就选择 M2M核心网络的 M-MME地址提供给 eNodeB; V-GW向 eNodeB返回选择的核心网络的地址。 步骤 S 1506, eNodeB为 MTC UE选择好一个为之月艮务的 M-MME后， 然后将附着请求转发到该 M-MME, 同时将 eNodeB的接入地址、 UE的标识 等重要信息也携带给该 M-MME。 步骤 S 1508, M-MME接收到 MTC UE的附着请求后， 会向 HSS请求鉴 权数据， 对 MTC UE进行鉴权。 然后向 HSS发起位置更新请求， 从 HSS下 载用户签约数据， 若 MTC UE没有接入限制等问题， 就允许 MTC UE附着， 进行后续的附着过程， 通知 M-SGW/M-PGW为该 MTC UE建立一条 EPS默 认承载。 步骤 S 1510, M2M核心网络中的 M-MME向 eNodeB发送附着接受响应， 表明 UE的附着到网络的请求已被接受， 携带 Serving GW地址与 TEID ( Tunnel Endpoint Identifier, 1¾道端口标识 )„ 步骤 S 1512, eNodeB向 UE发送语音承载建立请求， 要求 UE保存承载 建立的重要信息， 并开放相应的端口， eNodeB接收到 MTC UE的无线 载 建立响应后， 就通知 MME附着过程完成。 需要说明的是， 图 14和图 15仅以附着 （接入） 流程为例进行描述， 在 不冲突的情况下， 还可以适用于其他业务流程。 才艮据上述实施例， 在现有核心网络中叠加 M2M核心网络， 共享现有无 线接入网络中， 无线接入网络 eNodeB向 V-GW查询核心网络的接入地址， V-GW可以通过终端携带的相关信息 （例如， IMSI、 MSISDN、 APN、 设备 类型、 接入能力等指示）来判别是 H2H设备还是 M2M设备， 然后选择相应 的核心网络地址， 完成后续的接入过程。 从而达到既不占用现网核心网络资 源， 又优化了网络流程， 从而达到了满足 M2M应用需求的效果。 优选地， 针对第三种方式而言， 即上述网元为虚拟网关， 且虚拟网关作 为代理月艮务器， 则上述步 4聚 S 1106可以进一步包括以下处理： ( 1 )虚拟网关才艮据预先配置的终端设备身份与 M2M核心网络对应关系 信息， 为终端设备选择对应的第三核心网地址；
( 2 )虚拟网关才艮据第三核心网地址向对应的 M2M核心网络发起接入请 求。 在具体实施过程中， 在对应的 M2M核心网络执行完接入过程之后， 还 可以包括以下处理： 虚拟网关接收来自于 M2M核心网络的接入接受响应； 虚拟网关将接入接受响应返回至无线接入网络； 虚拟网关转发后续无线接入 网络与 M2M核心网络之间交互的信令消息。 具体地， 才艮据上述三种实现方式中的第三种方式， 没有对无线接入网络 进行改动， 但是， 此方案需要增加一个虚拟网关的逻辑网元， 釆用虚拟网关 還辑网元去完成核心网络的选择， 并在无线接入网络与核心网络之间完成相 关信令的交互。 V-GW需要有能力区分 H2H终端与 M2M终端并选择相应的 核心网络地址（即第三核心网地址）。 此方案对于无线接入网络来说， V-GW 相当于其内部配置的核心网络， 无线接入网络需要发给核心网络的所有信令 都直接发给 V-GW, 由 V-GW转发给相应的核心网络。 此方案对于核心网络 来说， V-GW就相当于无线接入网络， 核心网络需要发给无线接入网络的所 有信令都直接发给 V-GW, 由 V-GW转发给相应的无线接入网络。 下面对其 进行必要的流程描述。 图 16是根据本发明实例五的 MTC UE在 GPRS网络中釆用方案三通过 现有无线接入网络向 M2M核心网络进行附着过程的流程示意图，如图 16所 示， 在 GPRS网络中， 在现有核心网络中叠加 M2M核心网络， 共享现有无 线接入网络。 无线接入网络收到 MTC UE的附着请求后， 将附着请求转发给 V-GW, V-GW可以通过终端携带的相关信息 （如 IMSI、 MSISDN、 APN、 设备类型、 接入能力等指示）来判别该设备是 H2H设备还是 M2M设备， 然 后选择相应的核心网络地址， 并将附着请求发送给选择的核心网络。 核心网 络为 MTC UE完成附着相关流程后将附着接受消息发给 V-GW, 由 V-GW转 发给无线接入网络， 完成后续的接入过程。 上述过程具体可以包括如下处理 (步 4聚 S 1602-步 4聚 S 1616 ): 步骤 S 1602 , MTC UE向无线接入网络发起附着请求消息， 在附着消息 中需要携带 MTC UE的标识（如 IMSI、 MSISDN等）， 也可扩展参数， 增加 设备信息参数。 步骤 S 1604, 无线接入网络为 MTC UE选择一个月艮务的 V-GW, 并将附 着请求转发给 V-GW„
V-GW物理上可以与无线接入网络合一， 也可单独作为物理实体进行配 置。 步骤 S 1606 , V-GW才艮据附着消息中的 MTC UE的标识 （如 IMSI、
MSISDN )、 设备信息参数中的设备类型、 接入能力等指示， 来判别此设备是 M2M设备还是 H2H设备，然后选择相应的核心网络，如果是 H2H设备终端， V-GW就选择现有核心网络地址；如果是 M2M设备终端， V-GW就选择 M2M 核心网络地址。 步骤 S 1608, V-GW选择一个为 MTC UE月艮务的 M2M核心网络， 然后 将附着请求发给选择的 M-SGSN; 附着请求中携带 V-GW的地址， UE的标 识、 UE的设备类型等重要信息。 步骤 S 1610 , M2M核心网络收到 MTC UE的附着请求后， 会向 HLR请 求鉴权数据，对 MTC UE进行鉴权。然后向 HLR发起位置更新请求，从 HLR 下载用户签约数据， 若 MTC UE没有接入限制等问题， 就允许 MTC UE附 着， 进行后续的附着过程 （例如， M-SGSN可以向 M-GGSN申请建立 PDP 上下文等操作）。 步骤 S 1612, M2M核心网络允许 MTC UE接入， 向 V-GW返回附着接 受消息。 步骤 S 1614 , V-GW向无线接入网络转发附着接受消息。 步 4聚 S 1616, 无线接入网络向返回附着接受消息， 通知 MTC UE已经附 着到 GPRS网络。 图 17是才艮据本发明实例六的 MTC UE在 EPS网络中釆用方案三通过现 有无线接入网络向 M2M核心网络进行附着过程的流程示意图，如图 17所示， 在 EPS网络中， 在现有核心网络中叠加 M2M核心网络， 共享现有无线接入 网络 eNodeB, eNodeB接收到 MTC UE的附着请求后， 将附着请求转发给 V-GW, V-GW可以通过终端携带的相关信息 （如 IMSI、 MSISDN、 APN、 设备类型、 接入能力等指示）来判别该设备是 H2H设备还是 M2M设备， 然 后选择相应的核心网络地址， 并将附着请求发送给选择的核心网络。 核心网 络为 MTC UE完成附着相关流程后将附着接受消息发给 V-GW, 由 V-GW转 发给无线接入网络 eNodeB, 完成后续的接入过程。 具体可以包括以下处理 (步 4聚 S 1702-步 4聚 S 1716 ): 步骤 S 1702, UE为了接入到 EPS网络， 向 eNodeB发起网络附着请求， 其中， 该请求携带了 IMSI、 APN、 设备类型指示、 UE的网络接入能力、 请 求分配 IP的指示等信息。 步骤 S 1704, eNodeB为 MTC UE选择一个月艮务的 V-GW, 并将附着请 求转发给 V-GW。 其中， V-GW物理上可以与无线接入网络合一， 也可单独作为物理实体 进行配置， 即位于无线接入网络之外的独立网元。 步骤 S 1706 , V-GW根据附着消息中的 MTC UE的标识 （例如， IMSI、 MSISDN )、 或 APN、 或设备信息参数中的设备类型、 接入能力等指示， 来 判断此设备是 M2M设备还是 H2H设备， 然后选择相应的核心网络。 如果是 H2H设备终端， V-GW就选择现有核心网络的 MME地址； 如果是 M2M设 备终端， V-GW就选择 M2M核心网络的 M - MME地址。 步骤 S 1708, V-GW为 MTC UE选择好一个为之月艮务的 M-MME后， 然 后将附着请求转发到该 MME, 同时将 V-GW的接入地址、 UE的标识等重要 信息也携带给该 MME。 步骤 S 1710, M-MME接收到 MTC UE的附着请求后， 会向 HSS请求鉴 权数据， 对 MTC UE进行鉴权。 然后向 HSS发起位置更新请求， 从 HSS下 载用户签约数据， 若 MTC UE没有接入限制等问题， 就允许 MTC UE附着， 进行后续的附着过程， 通知 M-SGW/M-PGW为该 MTC UE建立一条 EPS默 认承载。 步骤 S 1712, M2M核心网络中的 M-MME向 V-GW发送附着接受响应， 表明 UE的附着到网络的请求已被接受,携带 Serving GW地址与 TEID( Tunnel Endpoint Identifier, l¾道端口标识；)。 步骤 S 1714, V-GW向无线接入网络 eNodeB转发附着接受响应。 步骤 S 1716, eNodeB接收到附着接受响应后， 向 UE发送语音 载建立 请求， 要求 UE保存 载建立的重要信息， 并开放相应的端口。 eNodeB接收 到 MTC UE的无线 载建立响应后， 就通知 ΜΜΕ附着过程完成。 需要说明的是， 图 16和图 17仅以附着 （接入） 流程为例进行描述， 在 不冲突的情况下， 还可以适用于其他业务流程。 V-GW位于无线接入网络与 核心网络之间， 负责转发相关的信令信息。 才艮据上述实施例， 在现有核心网络中叠加 Μ2Μ核心网络， 共享现有无 线接入网络。 无线接入网络接收到 MTC UE的附着请求后， 将附着请求转发 给 V-GW, V-GW可以通过终端携带的相关信息 （例如， IMSI、 MSISDN、 APN、 设备类型、 接入能力等指示）来判别该设备是 H2H设备还是 M2M设 备， 然后选择相应的核心网络地址， 并将附着请求发送给选择的核心网络。 核心网络为 MTC UE完成附着相关流程后将附着接受消息发给 V-GW, 由 V-GW转发给无线接入网络 eNodeB, 完成后续的接入过程。从而达到了既不 占用现网核心网络资源， 又优化网络流程， 同时满足 M2M应用需求的效果。 综上所述， 借助本发明提供的上述实施例， 在海量的 M2M终端接入到 网络时， 网络运营商可以部署专用的 M2M核心网络来满足 M2M业务需求。 当 M2M终端接入时， 无线接入网络可以通过设备类型或 /与接入能力来识别 M2M终端并选择相应的 M2M核心网，无线接入网络也可以通过虚拟网关来 识别 M2M终端并选择相应的 M2M核心网络， 从而达到既不占用现网核心 网络资源， 优化网络流程， 又满足 M2M应用需求的效果。 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， 并 且在某些情况下， 可以以不同于此处的顺序执行所示出或描述的步骤， 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
1. 一种机器到机器 M2M核心网络的接入实现方法， 其特征在于， 包括:
网元接收携带有设备身份指示信息的接入请求消息， 其中， 所述 接入请求消息由终端设备发起；
所述网元根据所述设备身份指示信息确定所述终端设备为 M2M 设备；
所述网元为所述终端设备选择对应的 M2M核心网络以实现所述 终端设备的接入。
2. 根据权利要求 1所述的方法， 其特征在于， 所述网元包括以下之一： 无线接入网络、 虚 ·ί 网关。
3. 根据权利要求 1所述的方法， 其特征在于， 所述设备身份指示信息包 括以下至少之一：
设备类型信息、 设备接入能力信息、 设备标识信息。
4. 根据权利要求 2所述的方法， 其特征在于， 所述无线接入网络为所述 终端设备选择对应的 Μ2Μ核心网络以实现所述终端设备的接入包括: 所述无线接入网络根据预先配置的终端设备身份与 Μ2Μ核心网 络对应关系信息， 为所述终端设备选择对应的第一核心网地址；
所述增强无线接入网络才艮据所述第一核心网地址向所述对应的 Μ2Μ核心网络发起接入请求。
5. 根据权利要求 2所述的方法， 其特征在于， 所述虚拟网关为所述终端 设备选择对应的 Μ2Μ核心网络以实现所述终端设备的接入包括： 所述虚拟网关才艮据预先配置的终端设备身份与 Μ2Μ核心网络对 应关系信息， 为所述终端设备选择对应的第二核心网地址；
所述虚拟网关将所述第二核心网地址发送至无线接入网络； 所述无线接入网络根据所述第二核心网地址向所述对应的 Μ2Μ 核心网络发起接入请求。
6. 居权利要求 5所述的方法， 其特征在于， 在所述虚拟网关为所述终 端设备选择对应的第二核心网地址之前， 所述方法还包括：
所述无线接入网络接收来自于所述终端设备的所述接入请求消息 后向所述虚拟网关请求所述第二核心网地址。
7. 根据权利要求 2所述的方法， 其特征在于， 所述虚拟网关为所述终端 设备选择对应的 M2M核心网络以实现所述终端设备的接入包括： 所述虚拟网关才艮据预先配置的终端设备身份与 M2M核心网络对 应关系信息， 为所述终端设备选择对应的第三核心网地址；
所述虚拟网关才艮据所述第三核心网地址向所述对应的 M2M核心 网络发起接入请求。
8. 根据权利要求 7所述的方法， 其特征在于， 在所述对应的 M2M核心 网络执行完接入过程之后， 所述方法还包括：
所述虚拟网关接收来自于所述 M2M核心网络的接入接受响应； 所述虚拟网关将所述接入接受响应返回至所述无线接入网络； 所述虚拟网关转发后续所述无线接入网络与所述 M2M核心网络 之间交互的信令消息。
9. 一种 M2M核心网络的接入实现装置， 其特征在于， 包括：
接收单元， 用于接收携带有设备身份指示信息的接入请求消息， 其中， 所述接入请求消息由终端设备发起；
确定单元， 用于根据所述设备身份指示信息确定所述终端设备为 M2M设备；
实现单元， 用于为所述终端设备选择对应的 M2M核心网络以实 现所述终端设备的接入。
10. 根据权利要求 9所述的装置， 其特征在于， 所述装置包括以下之一： 无线接入网络、 虚 ·ί 网关。
11. 根据权利要求 10所述的装置， 其特征在于， 在所述装置为所述无线接 入网络时， 所述实现单元包括： 第一选择模块， 用于才艮据预先配置的终端设备身份与 M2M核心 网络对应关系信息， 为所述终端设备选择对应的第一核心网地址； 第一发送模块，用于根据所述第一核心网地址向所述对应的 M2M 核心网络发起接入请求。
12. 根据权利要求 10所述的装置， 其特征在于， 在所述装置为所述虚拟网 关时， 所述实现单元包括：
第二选择模块， 用于才艮据预先配置的终端设备身份与 M2M核心 网络对应关系信息， 为所述终端设备选择对应的第二核心网地址； 第二发送模块，用于将所述第二核心网地址发送至无线接入网络； 第一接入请求模块， 用于才艮据所述第二核心网地址向所述对应的 M2M核心网络发起接入请求。
13. 根据权利要求 10所述的装置， 其特征在于， 在所述装置为所述虚拟网 关时， 所述实现单元包括：
第三选择模块， 用于才艮据预先配置的终端设备身份与 M2M核心 网络对应关系信息， 为所述终端设备选择对应的第三核心网地址； 第二接入请求模块， 用于 -据所述第三核心网地址向所述对应的 M2M核心网络发起接入请求。
14. 根据权利要求 13所述的装置， 其特征在于，
所述装置， 还用于作为代理服务器在无线接入网络与所述 M2M 核心网络之间转发信令消息。
15. 根据权利要求 12至 14中任一项所述的装置， 其特征在于，
所述装置集成于所述无线接入网络中； 或者
所述装置为设置于所述无线接入网络之外的独立网元。
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