WO2012149903A1 - Procédé et système de gestion de mobilité ou d'activation pour terminaux hors ligne - Google Patents

Procédé et système de gestion de mobilité ou d'activation pour terminaux hors ligne Download PDF

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Publication number
WO2012149903A1
WO2012149903A1 PCT/CN2012/075050 CN2012075050W WO2012149903A1 WO 2012149903 A1 WO2012149903 A1 WO 2012149903A1 CN 2012075050 W CN2012075050 W CN 2012075050W WO 2012149903 A1 WO2012149903 A1 WO 2012149903A1
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WIPO (PCT)
Prior art keywords
terminal
network side
location
location information
offline state
Prior art date
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Ceased
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PCT/CN2012/075050
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English (en)
Chinese (zh)
Inventor
支春霞
李志军
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ZTE Corp
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ZTE Corp
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Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2012149903A1 publication Critical patent/WO2012149903A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a mobility management or triggering method and system for a terminal in an offline state. Background technique
  • the (MTC) method is called a machine-to-machine (M2M) communication method.
  • M2M machine-to-machine
  • this communication method at least one of the participating communication devices is a device.
  • M2M machine-to-machine communication.
  • M2M includes networked applications and services centered on intelligent interaction of machine terminals. Based on intelligent machine terminals and multiple communication methods, M2M can provide customers with information solutions to meet customers' information needs in monitoring, command and dispatch, data acquisition and measurement.
  • M2M can be used in industrial applications such as traffic monitoring, alarm systems, marine rescue, vending machines, car payment, etc. It can be applied to home applications such as automatic meter reading, temperature control, etc. It can also be applied to personal applications such as life detection. , remote diagnosis, etc.
  • the communication object of M2M is the machine, and the communication behavior is automatically controlled, that is, the initiation and termination of communication, and the control of some access and restriction in the communication process are all automatic actions.
  • This behavior depends on the behavior constraint and behavior control of the terminal in the M2M communication in the M2M communication.
  • the behavior of the terminal in the M2M communication is restricted by the service subscription data, and the network manages the terminal in the M2M communication according to the service subscription data.
  • MTC Device The terminal is called an MTC device (MTC Device), and the application server is called an MTC server (MTC Server).
  • MTC Server MTC server
  • 2G, Second Generation Third Generation
  • 3G, 3rd Generation Third Generation
  • LTE Long Term Evolution
  • PS Packet Service
  • the network acts as the underlying bearer network to implement service layer communication between the MTC terminal and the MTC Server.
  • FIG 1 shows an M2M communication entity accessing an evolved packet system (EPS, Evolved Packet)
  • EPS evolved packet system
  • Evolved Packet Evolved Packet
  • the underlying bearer network includes: E-UTRAN (Evolved Universal Terrestrial Radio Access Network), Mobile Management Entity (MME, Mobility Management) Entity ), S-GW, Serving Gateway, Packet Data Network Gateway (P-GW), Home Subscriber Server (HSS), Policy and Charging Rules Function Entity ( PCRF, Policy and Charging Rules Function ) 0
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • MME Mobile Management Entity
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • Packet Data Network Gateway P-GW
  • HSS Home Subscriber Server
  • PCRF Policy and Charging Rules Function Entity
  • the main network element of the E-UTRAN is an evolved base station (eNodeB, Evolved NodeB); the MME is responsible for the control plane, such as mobility management, non-access stratum signaling processing, and context management of user mobility management;
  • the S-GW is an access gateway device connected to the E-UTRAN, and is responsible for forwarding data between the E-UTRAN and the P-GW and buffering the paging waiting data;
  • the P-GW is an EPS and packet data network (PDN) , Packet Data Network) border gateway, responsible for PDN access and forwarding data between EPS and PDN;
  • PCRF is a policy and charging rule function entity, through the receiving interface R and carrier network protocol (IP, Internet Protocol)
  • IP Internet Protocol
  • the PCRF can also be connected to the gateway device in the network through the Gx interface, and is responsible for initiating the establishment of the IP bearer, guaranteeing the quality of service (QoS) of the service data, and performing charging control.
  • the HSS is used to provide management of the user's subscription data, and management of important context information that the user accesses into the network.
  • the MTC server can act as an application function (AF, Application Function) entity, and connect to the PCRF through the R interface to implement control of the bearer.
  • MTC Server can also serve as the Session Initiation Protocol (SIP) application.
  • SIP Session Initiation Protocol
  • the MTC user equipment accesses the EPS network through the E-UTRAN (eNodeB).
  • the MTC UE and the MTC Server can establish an IP channel to implement the MTC server.
  • Upper-level business communication The IP channel established between the MTC UE and the MTC server is a logical IP channel, and its physical path passes through the eNodeB, the S-GW, and the P-GW.
  • M2M communication is to establish a service layer interface protocol on the IP channel between the MTC UE and the MTC Server.
  • 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.
  • the data communication between the MTC UE and the MTC Server can be implemented through the IP connection between the MTC UE and the MTC Server.
  • the MTC monitoring requirement is difficult to implement on the IP connection:
  • the MTC Server needs to monitor the running status of the MTC UE.
  • the current state of the MTC UE is dynamically learned. When the current state of the MTC UE changes, the MTC Server needs to obtain the notification in time.
  • the state changes of these MTC UEs may include: the MTC UE detaches from the network, the MTC UE enters the non-connected state, the MTC UE releases the wireless connection, the current location of the MTC UE changes, and the like.
  • the change of the state of these MTC UEs may be referred to as an MTC event.
  • the MTC event to be monitored may be defined in the MTC subscription data of the Home Location Register (HSR) and the HCS UE, and is attached to the network through the MTC UE.
  • the process is sent by the HLR/HSS to the SGSN/MME.
  • the network entity of the core network is usually required to be implemented.
  • the network element responsible for detecting the MTC event in the EPS network may be: MME/SGW/PGW, and the network element responsible for detecting the MTC event in the GPRS network may be the SGSN. /GGSN.
  • the network side does not store any information of the terminal, and the terminal does not monitor the broadcast message or paging message of the network, whether the terminal moves or not, and the information network of the location.
  • the side cannot be known. In this way, when the terminal is detached from the network, that is, the terminal is offline, the network side cannot find the terminal, and the mobility management and triggering functions of the terminal cannot be implemented.
  • the main purpose of the present invention is to provide a mobility management or triggering method and system for a terminal in an offline state, so as to solve the problem that the network side cannot perform mobility management or triggering on the network side when the terminal is in the offline state in the prior art. problem.
  • the application provides a mobility management method for a terminal in an offline state, and the method includes: acquiring a location information of a location where the current location is located;
  • the terminal when the terminal finds that its location changes, it initiates location re-registration to the network side;
  • the network side updates the saved location information of the terminal.
  • the terminal in the offline state obtains the location information of the current location, and the terminal in the offline state obtains its own location by periodically monitoring the broadcast channel or the paging channel on the network side. information.
  • the method further includes: setting, at the terminal, a first timer for monitoring a broadcast channel or a paging channel on the network side;
  • the periodically monitoring the broadcast channel or the paging channel on the network side is: the terminal periodically monitors the broadcast channel or the paging channel on the network side by using the first timer.
  • the terminal when the terminal finds that its location changes, it initiates location re-registration to the network side, where: when the acquired location information is different from the location information saved by the terminal, the terminal initiates a location heavy to the network side. Registration, sending the obtained location information to the network side MME.
  • the network side updating the saved location information of the terminal includes: updating, by the MME on the network side, the location information of the terminal that is saved by itself to be sent when the terminal initiates location re-registration location information.
  • the network side updating the stored location information of the terminal further includes: the MME on the network side transmitting the updated location information of the terminal to the HSS on the network side, where the HSS is updated.
  • the location information of the terminal saved by itself.
  • the method before the terminal in the offline state acquires the location information of the current location, the method further includes: when the terminal is converted to the offline state, the terminal and the network side save the terminal Location and status information.
  • the terminal is switched to the offline state, including: setting the same second timer on the terminal and the network side, and simultaneously starting the set second timer; expiring in the second timer
  • the terminal converts its own state to an offline state, and saves its own location information and status information
  • the network side sets the state of the terminal to an offline state, and deletes the The terminal-related bearer information, the location information and the state information of the terminal are saved.
  • the set second timer is started at the same time, when: when the terminal transitions to the idle (IDLE) state, the terminal and the second timer in the network side are simultaneously activated.
  • the terminal is switched to the offline state
  • the method includes: after the terminal completes the service data transmission, the network side carries the indication parameter converted to the offline state by using the signaling message sent to the terminal, triggering the network side Setting the state of the terminal to the offline state, and triggering the terminal to convert the state of the terminal to the offline state; and the network side deletes the bearer information related to the terminal and saves the location information and the state information of the terminal, The terminal saves its own location information and status information.
  • the invention also provides a method for triggering a terminal in an offline state, the method comprising: The network side saves the location information of the terminal in the offline state, and sends a terminal trigger request for triggering the terminal to access the network according to the saved location information of the terminal.
  • the terminal triggering request is sent to the terminal according to the saved location information of the terminal, where: selecting an appropriate MME according to the location information of the terminal, or assigning to the previous MME according to the location information in the HSS
  • the MME of the terminal sends a terminal trigger request to the MME.
  • the method further includes: setting, on the network side, a third timer, configured to limit a time when the network side saves the terminal trigger request; and the network side sends the terminal trigger to the terminal At the request, the third timer is started at the same time; and the terminal trigger request is saved before the third timer expires.
  • the method further includes:
  • the network side Before the third timer expires, if the network side does not receive any response message sent by the terminal, and the terminal initiates location re-registration to the network side, the network side will The terminal trigger request is carried in the location re-registration accept message and sent to the terminal.
  • the method further includes:
  • the network side Before the expiration of the third timer, if the network side does not receive any response message returned by the terminal, and does not send the location re-registration accept message carrying the terminal trigger request to the terminal, Then, the triggering failure message is returned to the MTC server that sends the request to the sending terminal.
  • the method before the sending, by the network, the terminal triggering request, the method further includes:
  • the terminal in the offline state acquires the location information of the current location of the terminal
  • the terminal when the terminal finds that its location changes, it initiates to the network side. Location re-registration;
  • the network side updates the saved location information of the terminal.
  • the present invention also provides a mobility management system for a terminal in an offline state, the system includes: a terminal, a network side device, where
  • the terminal is configured to acquire location information of a location where the current location is located when the user is offline; and, according to the obtained location information, initiate location re-registration to the network side device when the location changes.
  • the network side device is configured to update the saved location information of the terminal according to the location re-registration initiated by the terminal in the offline state.
  • the terminal is further configured to acquire location information of a location where the current location is located by periodically monitoring a broadcast channel or a paging channel on the network side.
  • the terminal is further configured to initiate location re-registration to the network side when the acquired location information is different from the location information saved by itself, and send the acquired location information to the network side.
  • the terminal is further configured to save the location information and the state information of the terminal when the terminal is in the offline state
  • the network side device is further configured to save the location when the terminal is converted to the offline state.
  • the location information and status information of the terminal are further configured to save the location when the terminal is converted to the offline state.
  • the network side device includes an MME; or the network side device includes an MME and an HSSo.
  • the terminal is an MTC terminal.
  • the present invention also provides a triggering system for a terminal in an offline state, the system comprising: a terminal and a network side device, wherein the terminal is in an offline state, and the network side device is configured to save the terminal in an offline state.
  • the location information and sending, according to the saved location information of the terminal, a terminal trigger request for triggering the terminal to access the network.
  • the network side device is configured with a third timer, and the third timer The time for limiting the network side device to save the terminal trigger request;
  • the network side device is further configured to: when the terminal trigger request is sent to the terminal, start the third timer; and save the terminal trigger request before the third timer expires.
  • the network side device includes an MME and/or an HSS
  • the third timer is configured to forward the terminal trigger request from the MTC server according to the location information of the terminal that is saved by the terminal. Give the terminal, and start the third timer set in itself.
  • the network side device is further configured to: before the expiration of the third timer, if any response message sent by the terminal is not received, and the terminal initiates location re-registration to itself, And the terminal triggering request is carried in the location re-registration accept message and sent to the terminal.
  • the network side device is further configured to: before the expiration of the third timer, if the response message returned by the terminal is not received, and is not sent to the terminal, When the terminal triggers the location re-registration accept message of the request, the MTC server that triggers the request to the sending terminal returns a trigger failure message.
  • the terminal is further configured to: when the offline state is obtained, obtain the location information of the current location; and, according to the obtained location information, initiate a location re-registration to the network side device when the location changes;
  • the network side device is further configured to update the saved location information of the terminal according to the location re-registration initiated by the terminal in the offline state.
  • the terminal in the offline state obtains the location information of the current location, and initiates the location re-registration when the location changes, so that the network side can update in real time.
  • the location information of the terminal so that when the terminal is in an offline state, mobility management of the terminal is implemented.
  • the method and system for triggering the terminal in the offline state of the present invention can be terminated at the network side.
  • the terminal When the terminal is in the offline state, the terminal sends a terminal trigger request to access the current network according to the location information of the terminal that is saved by the terminal, so that when the terminal is in the offline state, the terminal is triggered.
  • Figure 1 is a schematic diagram of an M2M network architecture
  • FIG. 2 is a flowchart of implementing a method for managing mobility of a terminal in an offline state according to the present invention
  • FIG. 3 is a flowchart of implementing a method for triggering a terminal in an offline state according to the present invention
  • FIG. 4 is a schematic flowchart of a method in which a terminal attached to a network is switched to an offline state by an implicit method according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a terminal that has been attached to a network being converted to an offline state by using a display mode according to Embodiment 2 of the present invention
  • FIG. 6 is a schematic diagram of a specific process of mobility management of a terminal in an offline state according to Embodiment 3 of the present invention.
  • FIG. 7 is a schematic diagram of a specific process for performing mobility management on a terminal in an offline state according to Embodiment 4 of the present invention.
  • FIG. 8 is a schematic flowchart of a specific process for triggering a terminal in an offline state according to Embodiment 5 of the present invention.
  • FIG. 9 is a schematic flowchart of a specific process for triggering a terminal in an offline state according to Embodiment 6 of the present invention. detailed description
  • the basic idea of the present invention is: When the terminal is in an offline state, the terminal periodically monitors the broadcast channel or the paging channel on the network side, and when the location is changed, the location is re-registered with the network, and the network side updates the saved information.
  • the location information of the terminal is such that the network side can timely update the location information of the terminal in the offline state, and perform mobility management on the terminal in the offline state.
  • the network The side may send the indication information for triggering the terminal to access the network according to the location information of the terminal that is saved by the terminal, so that the terminal can access the network according to the indication information, thereby implementing offline status.
  • the trigger function of the terminal When the terminal is in an offline state, the terminal periodically monitors the broadcast channel or the paging channel on the network side, and when the location is changed, the location is re-registered with the network, and the network side updates the saved information.
  • the location information of the terminal is such that the network side can timely update the location information of the terminal in the offline state
  • the mobility management method of the terminal in the offline state of the present invention may mainly include the following steps:
  • Step 201 The terminal in the offline state acquires the location information of the location where the current location is located. Specifically, the terminal in the offline state obtains the current location by periodically listening to the broadcast channel or the paging channel on the network side. Location location information;
  • a first timer for monitoring a broadcast channel or a paging channel on the network side may be set in the terminal, and the terminal periodically monitors the broadcast channel or the paging channel on the network side by using the first timer.
  • the terminal monitors the broadcast channel or the paging channel of the network side once, and restarts the first timer.
  • Step 202 According to the obtained location information, when the terminal finds that its location changes, it initiates location re-registration to the network side;
  • the terminal when the acquired location information is different from the location information saved by itself, the terminal initiates location re-registration to the network side, and sends the acquired location information to the MME on the network side.
  • the terminal compares the acquired location information of the location where it is currently located with the location information saved by itself, and if the same, the location of the terminal does not change, if not, the terminal The location has changed.
  • Step 203 The network side updates the saved location information of the terminal.
  • the MME on the network side updates the location information of the terminal that is saved by itself to the location information that is sent when the terminal initiates location re-registration.
  • the MME on the network side receives the location information sent by the terminal, and The location information of the terminal saved by itself is updated to the received location information of the terminal.
  • the MME also sends the updated location information of the terminal, that is, the location information of the current location of the terminal, to the HSS on the network side, and the HSS updates the location information of the terminal saved by itself.
  • the HSS receives the location information of the terminal sent by the MME, and updates the location information of the terminal that is saved by itself to the received location information of the terminal, that is, the HSS saves the location itself.
  • the location information of the terminal is updated to the location information of the location where the terminal is currently located.
  • the changed new MME saves the current location of the terminal that is sent when the terminal initiates location re-registration. location information.
  • the method may further include: when the terminal is converted to an offline state, the terminal and the network side save location information and status information of the terminal.
  • the related information of the terminal stored on the terminal side and the network side may include one or more of the following information: IMSI, International Mobile Subscriber Identification Number, mobility management status (MM State, Mobility Management state), Globally Unique Temporary Identity (GUTI), Tracking Area List, Tracking Area ID of the last location update (TAI of last TAU), etc., but not limited to More information.
  • the network side may also save subscription information of the terminal when the terminal is converted to an offline state, as needed.
  • the terminal can be converted to an offline state by using the following two methods:
  • the same second timer is set on the terminal and the network side, and the set second timer is started at the same time. For example, when the terminal is converted to the idle (IDLE) state, the terminal is simultaneously activated. And a second timer on the network side; before the expiration of the second timer, If the terminal does not initiate a service request, the terminal converts its own state to an offline state, and saves its own location information and status information, and the network side sets the state of the terminal to an offline state, and deletes the terminal-related Carrying information, saving location information and status information of the terminal.
  • IDLE idle
  • the terminal is simultaneously activated.
  • a second timer on the network side before the expiration of the second timer, If the terminal does not initiate a service request, the terminal converts its own state to an offline state, and saves its own location information and status information, and the network side sets the state of the terminal to an offline state, and deletes the terminal-related Carrying information, saving location information and status information of the terminal.
  • the network side After the terminal completes the service data transmission, the network side carries the signaling message sent to the terminal (for example, the existing detachment process or the PDN de-connection process, and the last signaling message sent by the network side to the terminal)
  • the indication parameter that is converted to the offline state the network side is triggered to set the state of the terminal to the offline state, and the terminal is triggered to convert the state of the terminal to the offline state; and the network side deletes the bearer related to the terminal.
  • the information and the location information and the status information of the terminal are saved, and the terminal saves its own location information and status information.
  • the present invention further provides a method for triggering a terminal in an offline state.
  • the method may include the following steps:
  • Step 301 The network side saves location information of the terminal.
  • Step 302 The network side sends a terminal trigger request for triggering the terminal to access the network according to the saved location information of the terminal.
  • the terminal triggering request is sent to the terminal according to the saved location information of the terminal, where: selecting an appropriate MME according to the location information of the terminal, or assigning to the terminal according to the previously saved in the HSS
  • the MME sends a terminal trigger request to the MME.
  • the network side may send a terminal triggering request for triggering the terminal to access the network to the terminal by using a broadcast message or a paging message.
  • the network side sends a terminal trigger request for triggering the terminal to access the network in an area corresponding to the location information of the terminal.
  • the method may further include: setting, on the network side, a third timer, configured to limit a time when the network side saves the terminal trigger request; and when the network side sends the terminal trigger request to the terminal And starting the third timer; and saving the terminal trigger request before the third timer expires.
  • the MME or the HSS on the network side sets the third timer; the MME or the HSS on the network side forwards the terminal trigger request from the MTC server according to the location information of the terminal that is saved by itself. Give the terminal, and start the third timer set in itself.
  • the method may further include: if the network side does not receive before the third timer expires And sending, by the network side, a location re-registration to the network side, and the network side sends the terminal trigger request to the terminal in a location re-registration accept message.
  • the method may further include: if the network side does not receive before the third timer expires If any response message returned by the terminal is not sent to the terminal and the location re-registration accept message carrying the terminal trigger request is not sent, the MTC server that triggers the request to the sending terminal returns a trigger failure message.
  • the MME on the network side does not receive any response message returned by the terminal, and does not send the terminal with the location that carries the terminal trigger request
  • the MME returns a trigger failure message to the MTC server that triggers the request by the HSS through the HSS.
  • the HSS on the network side does not receive any response message returned by the terminal, and does not send the terminal to the terminal by using the network side MME. If the location of the trigger request re-registers the accept message, the trigger failure message is returned to the MTC server that triggered the request by the sending terminal.
  • the present invention further provides a mobility management system for a terminal in an offline state, the system comprising: a terminal and a network side device, wherein the terminal is in an offline state; wherein the terminal is used to be in an offline state.
  • a mobility management system for a terminal in an offline state, the system comprising: a terminal and a network side device, wherein the terminal is in an offline state; wherein the terminal is used to be in an offline state.
  • obtain the location information of the location where it is currently located Obtaining the location information, and initiating the location re-registration to the network side device when the location is changed; the network side device, configured to update the saved location of the terminal according to the location re-registration initiated by the terminal in the offline state information.
  • the terminal is further configured to acquire location information of a current location by periodically listening to a broadcast channel or a paging channel on the network side.
  • the terminal is further configured to initiate location re-registration to the network side when the acquired location information is different from the location information saved by itself, and send the acquired location information to the network side.
  • the terminal is further configured to save the location information and the state information of the terminal when the terminal is in the offline state.
  • the network side device is further configured to save the location information of the terminal when the terminal is converted to the offline state. And status information.
  • the network side device includes an MME, or may include an MME and an HSS; and the terminal may be an MTC terminal.
  • the present invention also provides a triggering system for a terminal in an offline state, the system comprising: a terminal and a network side device, wherein the terminal is in an offline state, and the network side device is configured to save the terminal in an offline state.
  • the location information and sending, according to the saved location information of the terminal, a terminal trigger request for triggering the terminal to access the network.
  • the network side device is configured to have a third timer, where the third timer is used to limit the time when the network side device saves the terminal trigger request; the network side device is further configured to be in the terminal Sending the terminal trigger request, starting the third timer at the same time; and saving the terminal trigger request before the third timer expires.
  • the network side device includes an MME and/or an HSS
  • the third timer is configured to forward the terminal trigger request from the MTC server to the terminal according to the location information of the terminal that is saved by itself. Terminal, and start the third timer set in itself.
  • the network side device is further configured to: if the third timer expires, if not Receiving any response message sent by the terminal, and the location re-registration initiated by the terminal to the terminal, the terminal triggering request is carried in the location re-registration accept message and sent to the terminal.
  • the network side device is further configured to: before the third timer expires, if the response message returned by the terminal is not received, and the terminal is not sent to the terminal, the terminal trigger request is carried.
  • the location re-registration accept message returns a trigger failure message to the MTC server that triggered the request from the transmitting terminal.
  • the terminal is further configured to: when the offline state is obtained, acquire the location information of the current location; and, according to the obtained location information, initiate a location re-registration to the network side device when the location changes;
  • the device is further configured to update the saved location information of the terminal according to the location re-registration initiated by the terminal in the offline state.
  • the process that the terminal that is attached to the network is converted to the offline state by using an implicit manner, as shown in FIG. 4, includes the following steps:
  • Step 401 After the MTC terminal is attached and enters the IDLE state, the MTC terminal and the MME simultaneously start the same second timer.
  • the same second timer is set in advance at the MTC terminal and the MME.
  • Step 402 Until the second timer expires, the MTC terminal does not initiate a service request, and the MTC terminal and the MME respectively convert the MTC terminal state to an offline state, and the MME deletes the bearer information related to the MTC terminal saved by the MME. And storing location information and status information of the MTC terminal.
  • the subscription information of the MTC terminal may be saved in the MME according to actual needs. Specifically, when the MTC terminal converts its own state to an offline state, it saves its own end. The end state is set to offline.
  • Step 403 The MME notifies the S-GW and the P-GW to delete all information related to the MTC terminal.
  • Step 404 The MME sends a notification message to the HSS, indicating that the MTC terminal has been converted to an offline state.
  • the HSS after receiving the notification message of the MME, the HSS also saves the location information and status information of the MTC terminal to itself.
  • step 404 is an optional step.
  • the terminal that has been attached to the network is converted to the offline state by the display mode. Referring to FIG. 5, the following steps are included:
  • Step 501 The MME sends a detach accept message to the MTC terminal, where the detach accept message carries an indication parameter that is converted to an offline state.
  • Step 502 After receiving the detachment accept message, the MTC terminal converts its own state to an offline state, and saves its own location information and status information. After the MME sends the detach accept message, the MME records the self. The state of the MTC terminal is set to the offline state, and the saved bearer information related to the MTC terminal is deleted, and the location information and the state information of the MTC terminal are saved.
  • Step 503 The MME notifies the S-GW and the P-GW to delete all information related to the MTC terminal.
  • Step 504 The MME sends a notification message to the HSS, indicating that the MTC terminal has been converted to an offline state.
  • the HSS after receiving the notification message of the MME, the HSS also saves the location information and status information of the MTC terminal to itself.
  • step 504 is an optional step.
  • Embodiment 3 is an optional step.
  • the MME that serves the MTC terminal does not change, and the specific process of the mobility management of the terminal in the offline state includes the following steps:
  • Step 601 The MTC terminal periodically monitors the broadcast channel of the current network, and finds that its location changes.
  • the MTC terminal periodically monitors the network broadcast channel, obtains its current location information, and compares the acquired current location information with the location information saved by itself, and obtains the current location information of itself and itself. When the saved location information is different, it indicates
  • the location of the MTC terminal has changed.
  • Step 602 The MTC terminal sends a location re-registration request to the MME.
  • the location re-registration request carries the current location information of the MTC terminal.
  • Step 603 After receiving the location re-registration request, the MME on the network side
  • the MTC terminal performs authentication.
  • the device on the network side includes an MME, an HSS, and the like, and authenticates the MTC terminal.
  • Step 605 The MME updates the location information of the saved MTC terminal.
  • the MME extracts the current location information of the MTC terminal from the received location re-registration request, and updates the location information of the MTC terminal saved by itself to the current location information of the extracted MTC terminal.
  • Step 606 The MME returns a location re-registration accept message to the MTC terminal, and completes mobility management for the MTC terminal.
  • the MME after updating the location information of the MTC terminal that is saved by the MME, the MME sends the updated MTC terminal location information to the HSS, that is, the location information of the current location of the MTC terminal is sent to the HSS, so that the HSS also The bit of the MTC terminal that can be saved by itself The information is updated to the location information of the current location of the MTC terminal.
  • the specific process for performing mobility management on the terminal in an offline state includes the following steps:
  • Step 701 It is exactly the same as step 601 in the third embodiment.
  • Step 702 The MTC terminal sends a location re-registration request to the new MME.
  • the location re-registration request includes a location information of the location where the MTC terminal is currently located.
  • Step 703 The new MME obtains the context of the MTC terminal.
  • Step 704 The new HSS performs the location update process, and the HSS deletes the old ⁇ related information.
  • Step 705 The new device updates the location information of the saved MTC terminal.
  • the new location extracts the location information of the location where the MTC terminal is currently located from the location re-registration request sent by the MTC terminal, and saves the extracted location information of the current location of the MTC terminal to itself.
  • Step 706 The new port sends a location re-registration accept message to the MTC terminal to complete mobility management of the MTC terminal.
  • the new device after updating the location information of the MTC terminal that is saved by itself, the new device sends the updated MTC terminal location information to the HSS, that is, the location information of the current location of the MTC terminal is sent to the HSS, so that the HSS It is also possible to update the location information of the MTC terminal saved by itself to the location information of the location where the MTC terminal is currently located.
  • the body implementation process includes the following steps:
  • Step 801 The MTC terminal is in an offline state, and the MTC server initiates a terminal triggering request for triggering the MTC terminal to access the network, and the HSS sends the terminal trigger request to the MME;
  • Step 802 The MME receives the terminal trigger request and forwards the request to the MTC terminal, and starts a third timer, where the third timer is used to limit the time for the terminal to trigger the request.
  • the MME Before the expiration of the third timer, if no response message returned by the MTC terminal is received, the MME temporarily saves the terminal trigger request.
  • the MME receives any response message returned by the MTC terminal, for example, a request message for accessing the network, before the expiration of the third timer, the process of subsequent access is continued.
  • Step 803 If any response message returned by the MTC terminal is not received before the expiration of the third timer, and the MME receives the location re-registration request sent by the MTC terminal during the location re-registration process, the MME accepts the message by the location re-registration.
  • the saved terminal trigger request is sent to the MTC terminal.
  • the MTC terminal can perform the process of subsequent access to the network.
  • Step 804 If the MME does not receive any response message from the MTC terminal after the third timer expires, and the MME does not send the terminal trigger request to the MTC terminal by using the location re-registration process, the MME returns a trigger failure message to the HSS through the HSS. MTC server.
  • the MME may delete the temporarily saved terminal trigger request.
  • the terminal trigger request is sent to the MME via the HSS.
  • Another method of change is: an application server (such as an MTC server) that sends a terminal trigger request, after the HSS is queried to the MME that was previously allocated to the MTC terminal, or after the appropriate MME is derived according to the location information of the MTC terminal returned by the HSS. Sending a terminal trigger request to the MME.
  • Embodiment 6 Referring to FIG. 9, the specific implementation process of triggering the terminal in an offline state in this embodiment includes the following steps:
  • Step 901 Basically the same as step 801, except that after receiving the terminal trigger request, the HSS proceeds to step 902.
  • Step 902 The HSS sends a terminal trigger request to the MTC terminal through the MME, and starts its own timer.
  • the third timer is used to limit the time for temporarily saving the terminal trigger request. If the third timer expires, the MTC is not received. Any response message from the terminal, the HSS temporarily saves the terminal trigger request.
  • the MME receives any response message returned by the MTC terminal, for example, a request message for accessing the network, before the expiration of the third timer, the process of subsequent access is continued.
  • Step 903 If any response message returned by the MTC terminal is not received before the expiration of the third timer, and the MTC terminal initiates the location re-registration process, the HSS triggers the saved terminal by using the interaction signaling with the MME.
  • the MME sends the terminal trigger request to the MTC terminal through the location re-registration accept message.
  • the MTC terminal can perform the subsequent access network process.
  • Step 904 After the third timer expires, the network side does not receive any response message of the MTC terminal, and the HSS does not send the terminal trigger request to the MTC terminal by the location re-registration process, and the HSS returns a trigger failure message to the MTC server. .
  • the MME may delete the temporarily saved terminal trigger request.
  • a precondition of FIG. 8 of the foregoing embodiment 5 and FIG. 9 of the sixth embodiment is: finding a suitable MME, so as to issue a terminal trigger request to the MTC terminal by using the MME.
  • finding a suitable MME can be implemented by the following two methods:
  • the first type Find a suitable MME according to the saved location information of the MTC terminal; Body, according to the location information of the terminal and the topology of the network, it can be derived
  • the MME can send a terminal trigger request to the MTC terminal by using the MME.
  • HSS can be applied to find the appropriate

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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un procédé de gestion de mobilité pour des terminaux hors ligne, comprenant les opérations suivantes : un terminal hors ligne acquiert les informations de localisation de sa position en cours; en fonction des informations de localisation acquises, lorsque le terminal découvre un changement de sa position, le terminal lance un réenregistrement de localisation auprès d'un réseau; le réseau met à jour des informations de localisation stockées du terminal. L'invention porte également sur un système de gestion de mobilité pour terminaux hors ligne. L'invention porte en outre sur un procédé et un système d'activation pour terminaux hors ligne, permettant une gestion de mobilité et une activation de terminaux lorsque les terminaux sont hors ligne.
PCT/CN2012/075050 2011-05-04 2012-05-03 Procédé et système de gestion de mobilité ou d'activation pour terminaux hors ligne Ceased WO2012149903A1 (fr)

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CN201110114273.5A CN102769840B (zh) 2011-05-04 2011-05-04 离线状态下终端的移动性管理或触发方法及系统
CN201110114273.5 2011-05-04

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WO2015109510A1 (fr) * 2014-01-24 2015-07-30 华为技术有限公司 Dispositif, procédé et appareil d'obtention d'informations
WO2018133706A1 (fr) * 2017-01-20 2018-07-26 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédés pour commander à un équipement d'utilisateur de surveiller un message de recherche, équipements d'utilisateur, stations de base, et support de stockage
WO2018141093A1 (fr) 2017-02-04 2018-08-09 华为技术有限公司 Procédé, dispositif et système de traitement d'optimisation de réseau mobile

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