WO2010060339A1 - 移动性管理方法、移动性管理装置及终端设备 - Google Patents

移动性管理方法、移动性管理装置及终端设备 Download PDF

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Publication number
WO2010060339A1
WO2010060339A1 PCT/CN2009/074750 CN2009074750W WO2010060339A1 WO 2010060339 A1 WO2010060339 A1 WO 2010060339A1 CN 2009074750 W CN2009074750 W CN 2009074750W WO 2010060339 A1 WO2010060339 A1 WO 2010060339A1
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Prior art keywords
terminal
temporary identifier
index
mobility management
message
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PCT/CN2009/074750
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English (en)
French (fr)
Inventor
陈中平
陈海永
银宇
孙晓姬
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华为技术有限公司
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Publication of WO2010060339A1 publication Critical patent/WO2010060339A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support

Definitions

  • Mobility management method, mobility management device and terminal device The application is submitted to the Chinese Patent Office on November 3, 2008, the application number is 200810175513.0, and the invention name is "mobility management method, mobility management device and terminal device". Priority of Chinese Patent Application, the entire contents of which is incorporated herein by reference.
  • the present invention relates to the field of communication technologies, and in particular, to a mobility management method, a mobility management device, and a terminal device.
  • the network side allocates a wireless coverage area called a paging area. If the network needs to send signaling or user plane data to the terminal, it will send a paging message to the terminal within the scope of the paging area; when the terminal moves out from the current paging area, it needs to notify the network side by initiating a location update request procedure. .
  • the mobility management entity registered by the terminal allocates a temporary identifier to the terminal to identify the terminal, so as to facilitate subsequent use of the temporary identifier paging terminal.
  • the new mobility management entity needs to assign a new temporary identity to the terminal and send a location update accept message carrying the new temporary identity to the terminal.
  • the mobility management entity registered by the terminal allocates a temporary identifier to the terminal, and the temporary identifier can only identify the terminal, and cannot indicate the association with other network devices; when a large number of terminals are in the same location, move together in a consistent direction and speed.
  • the switched mobility management entity allocates a new temporary identifier to each terminal that has changed the handover to identify the corresponding terminal, which increases the network burden.
  • the embodiment of the present invention provides a mobility management method, a mobility management device, and a terminal device, which can associate a temporary identifier of a terminal with an MA (Mobile Agent) to which the terminal is bound, so as to facilitate subsequent mobility of the terminal. management.
  • MA Mobile Agent
  • a mobility management method including:
  • the first mobility management entity that is registered by the mobile agent MA After receiving the binding request message of the terminal, the first mobility management entity that is registered by the mobile agent MA acquires the index Index of the terminal, and uses the index of the terminal and the first temporary identifier of the MA to form the first temporary of the terminal. And identifying, sending, to the terminal, a message that carries the first temporary identifier of the terminal.
  • a mobility management method including:
  • a mobility management device includes:
  • a first message receiving unit configured to receive a binding request message of the terminal
  • the index obtaining unit of the terminal is configured to obtain an index of the terminal after receiving the binding request message of the terminal;
  • a first temporary identifier forming unit of the terminal configured to form a first temporary identifier of the terminal by using an index of the terminal and a first temporary identifier of the MA;
  • a first temporary identifier sending unit of the terminal configured to send, to the terminal, a message that carries the first temporary identifier of the terminal.
  • a terminal comprising:
  • a sending unit configured to send a binding request message
  • a first temporary identifier receiving unit of the terminal configured to receive, by the first mobility management entity that is registered by the MA, a message that carries the first temporary identifier of the terminal, where the first temporary identifier of the terminal includes: the MA The first temporary identifier and the index of the terminal, the first temporary carrying the terminal The identified message is sent after the first mobility management entity registered by the MA receives the binding request message.
  • the MA is bound to the terminal, and the first temporary identifier of the terminal is formed by the index of the terminal and the first temporary identifier of the MA and transmitted to the terminal.
  • the mobility management entity that can be registered by the MA constitutes the first temporary of the terminal. Identifying and associating the first temporary identifier of the terminal with the first temporary identifier of the MA.
  • FIG. 1 is a signaling diagram of a mobility management method according to Embodiment 2 of the present invention.
  • FIG. 2 is a signaling diagram of an implementation manner of step B according to Embodiment 2 of the present invention.
  • FIG. 3 is a signaling diagram of another implementation manner of step B according to the second embodiment of the present invention
  • FIG. 4 is a signaling diagram of an implementation manner of step C according to the second embodiment of the present invention
  • FIG. 5 is a signaling diagram of an implementation manner of step D according to Embodiment 2 of the present invention.
  • FIG. 6 is a signaling diagram of another implementation manner of step D according to the second embodiment of the present invention
  • FIG. 7 is a structural diagram of a mobility management apparatus according to Embodiment 3 of the present invention.
  • FIG. 8 is a structural diagram of a terminal provided in Embodiment 4 of the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • a first embodiment of the present invention provides a mobility management method, where the method specifically includes:
  • the first mobility management entity registered by the MA acquires the Index of the terminal, and uses the Index of the terminal and the first temporary identifier of the MA to form the terminal.
  • the first temporary identifier sends the message of the first temporary identifier to the terminal.
  • the binding request message is used to request the network side to bind the terminal to the MA.
  • the MA may be a terminal, which is different from the ordinary terminal in that it has a mobile agent function with network authorization, that is, it can represent each UE (User Equipment) within the coverage of the signal, when the MAJ is moved, The network side will think that the UE it represents has also moved accordingly.
  • UE User Equipment
  • the Index of the terminal is used to identify different terminals. For example: Uniquely identify the terminal within the signal coverage of the MA.
  • the MA is bound to the terminal, and the first temporary identifier of the terminal is formed by using the index of the terminal and the first temporary identifier of the MA, and is transmitted to the terminal, so that the first temporary identifier of the terminal is associated with the MA.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • a second embodiment of the present invention provides a mobility management method, where the method specifically includes: Step A: The network side authenticates the MA, and returns the security information to the MA; the MA broadcasts the advertisement message, and the notification message carries the security information; The terminal authenticates the MA according to the security information, and confirms that the MA is authorized by the network to provide the mobile agent.
  • Step B The first mobility management entity receives the binding request message sent by the terminal, and binds the terminal context to the MA context.
  • the index of the terminal is obtained, and the first temporary identifier of the terminal is formed by using the index of the terminal and the first temporary identifier of the MA. And storing in the terminal context, the binding success indication information of the first temporary identifier carrying the terminal is sent to the terminal.
  • the first mobility management entity may not carry the first temporary identifier of the terminal, such as the first GUTI (Globally Unique Temporary Identity), but the message is re-allocated in the GUTI. Carrying in, does not affect the implementation of the present invention.
  • first GUTI Globally Unique Temporary Identity
  • the terminal saves the first temporary identifier, and obtains its own index from the first temporary identifier.
  • the network side considers the terminal and the MA to move. Therefore, only the
  • the MAJ ⁇ location update request does not require a separate location update process when the terminal moves between TAs (Tracking Areas).
  • Step C The MA moves, enters the management scope of the second mobility management entity, and the MA sends a location update request to the second mobility management entity, where the second mobility management entity receives the location update request, from the first mobility management.
  • the entity acquires the MA context and the terminal context bound to the MA context, and allocates the second temporary identifier of the MA, and uses the index of the terminal and the second temporary identifier of the MA to form the second temporary identifier of the terminal and saves in the terminal context;
  • the second temporary identifier is sent to the MA.
  • Step D The MA broadcasts the second temporary identifier of the MA to the terminal, and the terminal uses the index of the own and the second temporary identifier of the MA to form a second temporary identifier of the terminal.
  • the second temporary identifier of the MA is sent to the MA, and the MA broadcasts the second temporary identifier of the MA to the terminal.
  • Other implementation manners may be used, for example, the second mobility management entity and the MA context. Bind the terminal context, determine the terminal bound to the MA, directly to the MA The bound terminal sends the second temporary identifier of the MA, which does not affect the implementation of the present invention.
  • Step A specifically includes the following steps:
  • MA ⁇ is an attach request message
  • the attach request message carries a message indicating that it is an MA.
  • the MME Mobile Management Entity, mobility management entity
  • receives the attach request message from the HSS (Home Subscriber Server) or the AAAI server (Authentication, Authorization, Accounting Server, security, authorization, accounting
  • AAAI server Authentication, Authorization, Accounting Server, security, authorization, accounting
  • the fee server obtains the contract data and authenticates the MA.
  • the MME After the authentication of the MA is successful, the MME returns an attach accept message to the MA, where the attach accept message includes a security parameter, where the security parameter includes: an authentication parameter for the terminal to perform legality authentication on the MA, and a time for authorizing the MA to provide the mobile proxy service.
  • the attach accept message includes a security parameter, where the security parameter includes: an authentication parameter for the terminal to perform legality authentication on the MA, and a time for authorizing the MA to provide the mobile proxy service.
  • the segment the area where the authorized MA provides the mobile agent service (for example, the TA list that the MA can serve), and the number of terminals that the authorized MA provides the mobile agent service.
  • the security parameter is delivered in the attach accept message.
  • the main reason is that not only the network needs to authenticate the MA, but the subsequent terminal also authenticates the MA to verify that the MA has been authorized by the network to authorize its time period at a specific time.
  • the area provides mobile agent services for a specific number of terminals.
  • the advertisement message is sent by using a wireless signal to notify the presence of the advertised message in the specific range.
  • the advertised message includes: the ID of the MA, the GUTI allocated by the network for the MA, and the tracking area list TAList allocated by the MME for the MA.
  • the current TA of the MA, the security parameters, and the capacity of the MA (the number of terminals that the MA has served and the number of terminals that can also be served, or the percentage of load).
  • the sending of the advertisement message by the MA in a specific range is that the MA wants the terminal in the specific range to receive the advertisement message, that is, the specific range is a range in which the terminal can perform binding movement with the MA.
  • the MA sends an advertisement message by using a specially planned frequency band and format, and may also send an advertisement message by using a frequency band of the existing broadcast message of the mobile communication system, and the format of the advertisement message may also adopt an existing broadcast message.
  • the above steps are to complete the authentication process of the MA through the attach process.
  • the process of completing the MA can be completed through other processes, such as the TAU (Tracking Area Update) process. Affects the implementation of the invention.
  • the terminal enters the signal coverage area of the MA, receives the notification message, and confirms that it is specific.
  • the terminal is always in the signal coverage area of the MA, that is, it is confirmed that it is stuck on the MA; the terminal authenticates the MA according to the security parameter in the notification message, and confirms that the current MA is authorized by the network to provide the service of the mobile agent.
  • the implementation manner of confirming that the user has been in the signal coverage area of the MA for a specific period of time may be: a timer is set in the terminal, and if the terminal does not move out of the signal coverage of the MA within a certain period of time counted by the timer Then, it is determined that the terminal is attached to the MA, and the MA is the MA to be bound by the terminal.
  • the ID of the MA and the GUTI allocated by the network to the MA are obtained from the notification message of the MA, where the GUTI allocated by the network for the MA may indicate the addressing information of the mobility management entity registered by the MA. .
  • the terminal may be in the signal coverage area of a certain MA within a short period of time, and then the signal coverage of the MA is removed, for example, the MA is installed.
  • the terminal just outside the bus receives the announcement message of the MA. Since the terminal does not need to be bound to the MA in this case, the terminal needs to confirm that it has been in the MA for a certain period of time. In the signal coverage area, it can be judged that it is following the MA movement.
  • step B specifically includes the following steps:
  • the terminal sends a TAU request message, where the TAU request message is a binding request, where the message carries the addressing information of the mobility management entity registered by the terminal, the ID of the MA to be bound by the terminal, and the mobility management registered by the MA.
  • the terminal can initiate the binding at any time after confirming that the user is stuck in the MA.
  • the terminal in the embodiment of the present invention initiates the binding after confirming that the user adheres to the next TAU (the next TAU may be
  • the terminal removes the TAU triggered by the current tracking area, or the TAU triggered by the timer that controls the periodic triggering of the TAU request.
  • the addressing information of the mobility management entity registered by the MA is filled in a field for the radio access network route binding request message in the TAU request message. Since the field for the radio access network route binding request message is originally filled in the addressing information of the mobility management entity registered by the terminal, in order to facilitate the radio access network to route the binding request message to the MA registered On the mobility management entity MME1 (Mobility Management Entity), fill in the addressing information of the mobility management entity registered by the MA in the field for the radio access network route binding request message; The addressing information of the registered mobility management entity is placed in the message. In the cell.
  • the addressing information of the mobility management entity registered by the MA may be the GUTI of the MA; the addressing information of the mobility management entity registered by the terminal may be the GUTI of the terminal.
  • the radio access network routes the message to the first mobility management entity MME1 (Mobility Management Entity) registered by the MA according to the mobility management entity code MME Code in the GUTI of the MA in the TAU request message.
  • MME1 Mobility Management Entity
  • MME1 finds the MA context locally through the GUTI of the MA.
  • the MME1 confirms whether the terminal is currently registered on itself or the other MME through the MME Code in the GUTI of the terminal. If the terminal is registered on another MME, the MME1 is from other MMEs. (ie, the MME currently registered by the terminal) Obtain the terminal context. If the terminal is currently registered on itself, the MME directly searches for the pre-stored terminal context according to the GUTI of the terminal.
  • M3, MME1 associates the terminal context to the MA context. Thereafter, MME1 knows that the binding terminal will move with the MA, MME1 allocates an index to the terminal, and uses the first GUTI (Globally Unique Temporary Identity) of the MA. And the index of the terminal constitutes the first GUTI of the terminal and is saved in the context of the terminal, at which time the first GUTI of the terminal is an extended GUTI. The MME1 returns the binding success indication information carrying the first GUTI to the terminal, and the binding success indication information may be a TAU accept message to indicate that the binding is successful.
  • GUTI Globally Unique Temporary Identity
  • the uniqueness of the index needs to be ensured, that is, the index of the terminal and the first GUTI of the MA can uniquely identify the terminal;
  • the binding success indication information of the first GUTI of the carrying terminal that is returned by the MME1 to the terminal further includes: information indicating that the first GUTI of the terminal is an extended GUTI, which may be implemented by the following two methods:
  • the binding success indication information carries a cell indicating whether the first GUTI of the terminal is an extended GUTI.
  • the second mode is: using a certain bit in the first GUTI of the terminal to indicate whether the first GUTI of the terminal is an extended GUTI.
  • the first GUTI allocated by the MME1 for the MA may have the same length as the traditional GUTI, and the first GUTI of the terminal is longer than the length of the traditional GUTI.
  • the first GUTI of the terminal may have the same length as the GUTI of the traditional terminal.
  • the GUTI allocated by the MME1 for the MA is shorter than the traditional GUTI, and may be called a special GUTI, the special The GUTI has an MME Code, which can be guaranteed to be addressed to the MME1.
  • the MME1 uses the special GUTI and the Index of the terminal to form the first GUTI of the terminal.
  • the binding success indication information needs to carry the special GUTI start bit indication information, or / and the Index start bit indication information, so that the terminal Knowing which part is a special GUTI, which part is Index, and subsequently using the second temporary identifier of Index and MA to form a second temporary identifier of the terminal.
  • the start bit indication information of the special GUTI, or/and the Index start bit indication information may also be saved in the terminal context or the MA context, so that the subsequent terminal and the MA move to other MMEs.
  • the start bit of the special GUTI does not need to be instructed, or / and Index
  • the start bit indication information is stored in the terminal context or the MA context.
  • the network side has statically configured the GUTI of the terminal on the UE, which part is the GUTI of the special MA, and which part is the Index, it is not necessary to indicate the start bit of the special GUTI, or/and,
  • the Index start bit indicates that the information is saved in the terminal context or the MA context.
  • the terminal requests the network side to bind the terminal to the MA by initiating a TAU clearing message, and the terminal may also request the network side to bind the terminal to the MA by using the attach request, without affecting the implementation of the present invention.
  • step B specifically includes the following steps:
  • the terminal requests a TAU from the MA ⁇ _, the TAU request is a binding request, and the message carries the GUTI of the terminal, and the message may also carry the related information of the MA.
  • the information about the MA includes: the ID of the MA, where the MA is currently located. TA, MA GUTI, etc. If the information about the MA is not carried in the TAU request, the MA adds the information about the MA to the TAU request.
  • the MA allocates an index to the terminal, and adds the Index to the TAU request message sent by the terminal to the MA. Registered MME1.
  • Whether the TAU request message still passes through the radio access network depends on the backhaul scheme selected by the MA. If the MA selects the wireless link of the current mobile communication network as the backhaul, the message needs to reach the network side through the radio access network; if the MA selects Other backhaul solutions, such as satellite and WLAN (wireless local area network), do not need to go through the radio access network.
  • the backhaul scheme selected by the MA If the MA selects the wireless link of the current mobile communication network as the backhaul, the message needs to reach the network side through the radio access network; if the MA selects Other backhaul solutions, such as satellite and WLAN (wireless local area network), do not need to go through the radio access network.
  • MME1 finds the MA context through the GUTI of the MA, and the MME1 confirms whether the terminal is currently registered on itself or the other MME through the MME Code in the GUTI of the terminal. If the terminal is registered on another MME, the MME1 is from other MMEs. The MME that is currently registered by the terminal acquires the terminal context. If the terminal is currently registered on itself, the MME directly searches for the pre-stored terminal context according to the GUTI of the terminal.
  • MME1 associates the terminal context to the MA context. Thereafter, the MME1 knows that the binding terminal will move with the MA, and the MME1 obtains the Index of the terminal from the TAU request message, and forms the terminal by using the first GUTI of the MA and the Index of the terminal. The first GUTI is saved in the context of the terminal, at which point the first GUTI of the terminal is the extended GUTI. The MME1 returns the binding success indication information of the first GUTI carrying the terminal to the terminal, and the binding success indication information may be a TAU accept message to indicate that the binding is successful.
  • the uniqueness of the index needs to be ensured, that is, the index of the terminal and the first GUTI of the MA can uniquely identify the terminal;
  • the binding success indication information of the first GUTI of the carrying terminal that the MME1 returns to the terminal may further carry information indicating whether the first GUTI of the terminal is an extended GUTI, and specifically, there are two implementation manners, and implementation in the M3 The same way, no longer mentioned here.
  • step C specifically includes:
  • MA moves out of the tracking area in the TA List, enters another TA, and initiates a TAU request message. Since the MME (MME1) originally registered by the MA cannot serve the new TA, the radio access network selects a new MME (second mobility management entity MME2) and routes the TAU request message to the MME2.
  • MME mobile mobility management entity
  • MME2 sends an acquisition context request and clears the MA and the end to the MME 1 originally registered by the MA. An indication of the binding relationship of the end.
  • the MME1 sends the MA context and all the terminal contexts bound to the MA to the MME2, and clears the binding relationship between the MA and the terminal.
  • the first GUTI of the terminal saved in the terminal context includes: an index of the terminal and a first GUTI of the MA.
  • MME2 saves the MA context and all terminal contexts bound to the MA, allocates a new GUTI (the second GUTI of the MA) for the MA, and replaces the first GUTI of the MA in the first GUTI of the terminal with the second GUTI of the MA, To form the second GUTI of the terminal and save in the terminal context, the MME2 sends a location update acceptance of the second GUTI carrying the MA to the MA.
  • a new GUTI the second GUTI of the MA
  • replacing the first GUTI of the MA in the first GUTI of the terminal with the second GUTI of the MA to form the second GUTI of the terminal may be: using a start bit of the special GUTI of the MA saved in the terminal context or the MA context. Bit indication information, or / and Index start bit indication information, determining a start bit of the first GUTI of the MA in the first GUTI of the terminal, determining whether the second GUTI of the MA is the same as the first GUTI of the MA, If not, the first GUTI of the MA in the first GUTI of the terminal is replaced with the second GUTI of the MA to change the first GUTI of the terminal to the second GUTI of the terminal.
  • step D specifically includes:
  • the MA broadcasts its own second GUTI in the broadcast message, and the terminal receives the broadcast message.
  • the terminal according to the information in the M3 in step B is used to indicate that the first temporary identifier of the terminal is an extended identifier (such as indicating whether the first GUTI of the terminal is An extended GUTI cell or a certain bit in the first GUTI, confirming that the first temporary identifier of the terminal is an extended identifier, indicating information according to a starting bit of the first temporary identifier of the MA, and/or an index of the terminal Determining the bit position indication information, determining the start bit of the first temporary identifier of the MA in the first temporary identifier of the terminal, determining whether the second GUTI of the MA is the same as the first GUTI of the MA, and if not, using the MA
  • the second GUTI replaces the first GUTI of the MA in the first GUTI of the terminal to change the first GUTI of the terminal to the second GUTI of the terminal.
  • the terminal according to the information in the M3 in step B that indicates that the first temporary identifier of the terminal is an extended identifier (such as a cell indicating whether the first GUTI of the terminal is an extended GUTI or a certain bit in the first GUTI). And confirming that the first temporary identifier of the terminal is an extended identifier, which may be performed after M3 in step B before the terminal receives the second GUTI of the MA, and does not affect the implementation of the present invention.
  • an extended identifier such as a cell indicating whether the first GUTI of the terminal is an extended GUTI or a certain bit in the first GUTI.
  • the first mobility management entity uses the index of the terminal and the first GUTI of the MA to form the first GUTI of the terminal and sends the same to the terminal.
  • the first GUTI of the terminal is associated with the MA; further, when the MA and the terminal switch, the second mobility management entity automatically saves the index of the terminal and the second GUTI of the MA to form the second GUTI of the terminal in the terminal context; After the second GUTI of the MA, the second GUTI of the MA and the Index of the own index (Index in the first GUTI of the terminal) are used to form the second GUTI of the MA, and the network side is no longer required to allocate the temporary identifier, thereby reducing the network. burden.
  • FIG. 4 and FIG. 5 are schematic diagrams of signaling of a paging terminal on the network side after the MA is bound to the terminal, where the mobility management entity of the paging terminal on the network side may be the MME 1 or the MME 2, and the network side seeks There are two ways to call the terminal:
  • the first way includes:
  • the MME sends a paging message carrying the GUTI of the terminal to the access network management network element.
  • the GUTI of the terminal includes: a GUTI of the MA and an Index of the terminal.
  • the access network management network element broadcasts a paging message.
  • the terminal confirms that the network side is paging itself and returns a paging response message to the MME according to the GUTI of the terminal carried in the paging message.
  • the second method includes:
  • the MME After the MME determines the terminal that needs to be paged, it determines the MA that is bound to the terminal according to the GUTI of the terminal, and sends a paging message to the MA ⁇ , where the paging message carries the index of the terminal.
  • the paging message may also directly carry the GUTI of the terminal, and does not affect the implementation of the present invention.
  • V2 MA broadcasts the paging message of the Index of the mobile terminal.
  • the terminal confirms that the network side is paging itself and returns a paging response message to the MME according to the index of the terminal carried in the paging message.
  • the above two paging methods can use the GUTI of the terminal (including the GUTI of the MA and the Index of the terminal) or the Index of the terminal to implement the purpose of the paging terminal on the network side.
  • the MME is described as a mobility management entity in the above embodiments.
  • the mobility management entity in the technical solution provided by the embodiment of the present invention may also be a mobility management device in other fields, such as SGSN (Serving GPRS Support Node).
  • the service GPRS support node correspondingly, the packet temporary mobile subscriber identity), the temporary identifier of the MA is the P-TMSI of the MA, and the object of the present invention can also be achieved.
  • Embodiment 3 is described as a mobility management entity in the above embodiments.
  • the mobility management entity in the technical solution provided by the embodiment of the present invention may also be a mobility management device in other fields, such as SGSN (Serving GPRS Support Node).
  • the service GPRS support node correspondingly, the packet temporary mobile subscriber identity), the temporary identifier of the MA is the P-TMSI of the MA, and the object of the present invention can also be achieved.
  • Embodiment 3 is described as a mobility management entity in the above embodiments
  • a third embodiment of the present invention provides a mobility management apparatus, which may be the first mobility management entity, including:
  • a first message receiving unit 701 configured to receive a binding request message of the terminal
  • the binding unit 702 is configured to acquire a terminal context after receiving the binding request message, and
  • An index obtaining unit 703 of the terminal configured to acquire an index of the terminal
  • a first temporary identifier forming unit 704 configured to use the index of the terminal and the first temporary identifier of the MA to form a first temporary identifier of the terminal, and save the first temporary identifier of the terminal in the terminal context;
  • the first temporary identifier sending unit 705 of the terminal is configured to send, to the terminal, a response message carrying the first temporary identifier of the terminal.
  • the device also includes:
  • the second message receiving unit 706 is configured to receive an acquisition context request and a clear binding relationship indication sent by the second mobility management entity to which the MA is switched.
  • the context sending unit 707 is configured to send the MA context and the terminal context to the second mobility management entity after the second message receiving unit 706 receives the acquiring context request.
  • the deleting unit 708 is configured to: after the second message receiving unit receives the clear binding relationship indication, the deleted paging message sending unit 709 is configured to send, to the access network management network element or the MA, the first temporary identifier of the carrying terminal. Or a message for sending the index of the carrying terminal to the MAJ ⁇ .
  • the mobility management device uses the index of the terminal and the first temporary identifier of the MA to form the first temporary identifier of the terminal and sends the first temporary identifier to the terminal.
  • the first temporary identifier of the terminal is associated with the MA; further, the first temporary identifier of the terminal associated with the MA may be used to page the terminal.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • a fourth embodiment of the present invention provides a terminal.
  • the first mobility management entity is also shown in FIG.
  • the sending unit 801 is configured to send a binding request message.
  • the first temporary identifier receiving unit 802 of the terminal is configured to receive a response message that is sent by the first mobility management entity that is registered by the MA and that carries the first temporary identifier of the terminal, where the first temporary identifier of the terminal includes: The first temporary identifier of the MA and the index of the terminal, where the message carrying the first temporary identifier of the terminal is sent by the first mobility management entity that is registered by the MA after receiving the binding request message.
  • the device also includes:
  • the second temporary identifier obtaining unit 803 of the MA is configured to receive a second temporary identifier of the MA sent by the MA;
  • the second temporary identifier forming unit 804 of the terminal is configured to replace the second temporary identifier of the MA with the first temporary identifier of the MA in the first temporary identifier of the terminal, to change the first temporary identifier of the terminal into the terminal Second temporary identification.
  • the terminal in the fourth embodiment of the present invention sends a binding request to the first mobility management entity registered by the MA, triggers the first mobility management entity to bind the terminal context to the MA context, and allocates the first terminal of the terminal associated with the MA.
  • the temporary identifier is sent to the terminal, and the terminal receives the first temporary identifier of the terminal associated with the MA.
  • the terminal uses the second temporary identifier of the MA after receiving the second temporary identifier of the MA.
  • the index of the own index (Index in the first temporary identifier of the terminal) constitutes its own second temporary identifier, and the network side is no longer required to allocate the temporary identifier, which reduces the burden on the network.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • a fifth embodiment of the present invention provides a network system, including: a first mobility management entity and a terminal; and a first mobility management entity, configured to: after receiving a binding request message sent by the terminal, acquire a terminal context, and set the MA context Binding with the terminal context; obtaining an index of the terminal, using the index of the terminal and the first temporary identifier of the MA to form a first temporary identifier of the terminal and saving in the terminal context, and sending the carrying a response message of the first temporary identifier of the terminal, the terminal, configured to send a binding request message to the first mobility management entity, and receive the first temporary identifier that is sent by the first mobility management entity and that carries the terminal Response message.
  • the network system also includes:
  • a second mobility management entity configured to acquire, after receiving the location update request sent by the MA, the MA context from the first mobility management entity and the terminal context of the first temporary identifier that includes the terminal;
  • the second temporary identifier of the MA is configured to be saved in the terminal context by using the index of the terminal in the first temporary identifier of the terminal and the second temporary identifier of the MA.
  • the terminal is further configured to use the Index in the first temporary identifier of the terminal and the second temporary identifier of the MA to form a second temporary identifier of the terminal.
  • the terminal in the fifth embodiment of the present invention sends a binding request to the first mobility management entity that is registered by the MA, triggers the first mobility management entity to bind the terminal context to the MA context, and allocates the terminal associated with the MA.
  • a temporary identifier is sent to the terminal, and the terminal receives the first temporary identifier of the terminal associated with the MA.
  • the second mobility management entity automatically forms the index of the terminal and the second temporary identifier of the MA.
  • the second temporary identifier of the terminal is saved in the terminal context.
  • the terminal After obtaining the second temporary identifier of the MA, the terminal uses the second temporary identifier of the MA and the index of the index (Index in the first temporary identifier of the terminal) to form its own The second temporary identifier, and the network side is no longer required to allocate the temporary identifier, which reduces the burden on the network.

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Abstract

一种移动性管理方法,包括:移动代理 MA所注册的第一移动性管理实体在接收到终端的绑定请求消息后,获取终端的索引 Index,利用所述终端的 Index和所述 MA的第一临时标识构成终端的第一临时标识,向所述终端发送携带所述终端的第一临时标识的消息。 一种移动性管理装置, 包括: 第一消息接收单元,用于接收终端的绑定请求消息;终端的 Index获取单元,用于在接收到终端的绑定请求消息后,获取终端的 Index;终端的第一临时标识构成单元,用于利用所述终端的 Index和 MA的第一临时标识构成终端的第一临时标识;终端的第一临时标识发送单元,用于向所述终端发送携带所述终端的第一临时标识的消息。

Description

移动性管理方法、 移动性管理装置及终端设备 本申请要求于 2008 年 11 月 3 日提交中国专利局、 申请号为 200810175513.0、发明名称为 "移动性管理方法、移动性管理装置及终端设备" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域,特别涉及移动性管理方法、移动性管理装置及 终端设备。
背景技术
移动通信系统中,在终端附着到网絡中后, 网络侧会给终端分配一个无线 覆盖范围, 称为寻呼区。 如果网络需要发送信令或者用户面数据给终端, 则会 在这个寻呼区的范围内向终端发送寻呼消息; 当终端从当前寻呼区移出时,需 要通过发起一个位置更新请求流程通知网络侧。
现有技术中,终端注册的移动性管理实体会为终端分配临时标识, 以标识 该终端, 便于后续利用这个临时标识寻呼终端。
在此过程中,如果移动性管理实体发生了切换,那么新的移动性管理实体 需要给终端分配新的临时标识,并向终端发送携带新的临时标识的位置更新接 受消息。
显然, 终端移动的越快, 其发起位置更新请求就越频繁, 就越有可能发生 移动性管理实体的切换。 而人自身的移动速度和范围都是有限的,要想以较快 的速度在大范围内移动, 一般要借助交通工具, 如公共汽车、 地铁、 火车和轮 船等, 在交通工具上的所有终端都以一致的方向和速度进行移动。
在某些场合下, 如游行、 示威, 也可能出现大量步行的人群一起移动的情 况。
现有技术的缺点是:
由终端注册的移动性管理实体为该终端分配临时标识,该临时标识仅能标 识该终端, 并不能表示与其他网络设备的关联; 当大量处于同一位置, 以一致 的方向和速度一起移动的终端在从当前寻呼区移出、发生移动性管理实体发生 切换时,其切换后的移动性管理实体会给每一个发生切换的终端分配新的临时 标识, 以标识对应终端, 加重了网络负担。 发明内容
本发明实施例提供一种移动性管理方法、移动性管理装置及终端设备, 能 够使终端的临时标识与该终端所绑定的 MA ( Mobile Agent, 移动代理)相关 联, 方便终端后续的移动性管理。
有鉴于此, 本发明实施例提供:
一种移动性管理方法, 包括:
移动代理 MA所注册的第一移动性管理实体在接收到终端的绑定请求消 息后, 获取终端的索引 Index, 利用所述终端的 Index和所述 MA的第一临时标 识构成终端的第一临时标识 ,向所述终端发送携带所述终端的第一临时标识的 消息。
一种移动性管理方法, 包括:
发送綁定请求消息, 所述绑定请求消息被路由到 MA注册的第一移动性管 理实体;
接收所述 MA注册的第一移动性管理实体发送的携带所述终端的第一临 时标识的消息, 其中, 所述终端的第一临时标识包括: 所述 MA的第一临时标 识和终端的 Index。
一种移动性管理装置, 包括:
第一消息接收单元, 用于接收终端的绑定请求消息;
终端的 Index获取单元, 用于在接收到终端的绑定请求消息后 , 获取终端 的 Index;
终端的第一临时标识构成单元,用于利用所述终端的 Index和 MA的第一临 时标识构成终端的第一临时标识;
终端的第一临时标识发送单元,用于向所述终端发送携带所述终端的第一 临时标识的消息。
一种终端, 包括:
发送单元, 用于发送绑定请求消息;
终端的第一临时标识接收单元, 用于接收 MA注册的第一移动性管理实体 发送的携带所述终端的第一临时标识的消息,其中,所述终端的第一临时标识 包括: 所述 MA的第一临时标识和终端的 Index, 所述携带所述终端的第一临时 标识的消息是所述 MA注册的第一移动性管理实体接收到所述绑定请求消息后 发出的。
本发明实施例将 MA与终端进行绑定,利用终端的 Index和 MA的第一临 时标识构成终端的第一临时标识并传输给终端,能够由 MA注册的移动性管理 实体构成终端的第一临时标识,并使终端的第一临时标识与 MA的第一临时标 识相关联。
附图说明
图 1是本发明实施例二提供的移动性管理方法信令图;
图 2是本发明实施例二提供的步骤 B的一种实现方式的信令图;
图 3是本发明实施例二提供的步骤 B的另一种实现方式的信令图; 图 4是本发明实施例二提供的步骤 C的一种实现方式的信令图;
图 5是本发明实施例二提供的步骤 D的一种实现方式的信令图;
图 6是本发明实施例二提供的步 D的另一种实现方式的信令图; 图 7是本发明实施例三提供的移动性管理装置结构图;
图 8是本发明实施例四提供的终端结构图。
具体实施方式
实施例一:
本发明实施例一提供一种移动性管理方法, 该方法具体包括:
MA ( Mobile Agent, 移动代理)所注册的第一移动性管理实体在接收到 终端发送的绑定请求消息后, 获取终端的 Index, 利用所述终端的 Index和 MA 的第一临时标识构成终端的第一临时标识,向所述终端发送所述第一临时标识 的消息。
其中, 绑定请求消息是用于请求网络侧将终端与 MA绑定的。
其中, MA可以是一个终端, 其与普通终端的区别在于具有网络授权的移 动代理功能, 即可以代表在自己信号覆盖范围内的各 UE ( User Equipment, 用 户设备 ), 当 MAJ^生移动时, 网络侧会认为其所代表的 UE也相应的发生了移 动。
其中, 终端的 Index用于标识不同的终端。 例如: 在 MA的信号覆盖范围内 唯一标识终端。 本发明实施例一将 MA与终端进行绑定, 利用终端的 Index和 MA的第一临 时标识构成终端的第一临时标识并传输给终端, 使终端的第一临时标识与 MA 相关联。
实施例二:
参阅图 1 , 本发明实施例二提供一种移动性管理方法, 该方法具体包括: 步骤 A、 网络侧对 MA进行认证, 向 MA返回安全信息; MA广播通告消息, 通告消息中携带安全信息; 终端根据安全信息对 MA进行认证, 确认 MA得到 网络授权可以提供移动代理。
步骤 B、 第一移动性管理实体接收终端发送的绑定请求消息, 将终端上下 文与 MA上下文绑定; 获取终端的 Index, 利用终端的 Index和 MA的第一临时标 识构成终端的第一临时标识并保存在终端上下文中,向终端发送携带终端的第 一临时标识的绑定成功指示信息。
可选的,第一移动性管理实体也可以不在绑定成功指示信息中携带终端的 第一临时标识, 比如第一 GUTI ( Globally Unique Temporary Identity, 全球唯一 临时标识), 而是在 GUTI重分配消息中携带, 不影响本发明的实现。
同时, 终端保存该第一临时标识, 从第一临时标识中获取自身的 Index。 在终端与 MA绑定后, 网络侧会认为终端和 MA—起移动, 因此, 只需要
MAJ^起位置更新请求, 终端在 TA ( Tracking Area, 跟踪区) 间移动时不需要 再进行单独的位置更新流程。
步骤 C、 MA发生移动, 进入第二移动性管理实体的管理范围, MA向第 二移动性管理实体发送位置更新请求,第二移动性管理实体接收到位置更新请 求后, 从第一移动性管理实体获取 MA上下文和与 MA上下文绑定的终端上下 文, 分配 MA的第二临时标识, 利用终端的 Index和 MA的第二临时标识构成终 端的第二临时标识保存在终端上下文中; 将 MA的第二临时标识向 MA发送。
步骤 D、 MA向终端广播 MA的第二临时标识 , 终端利用自身的 Index和 MA 的第二临时标识构成终端的第二临时标识。
其中, 步骤 C中将 MA的第二临时标识向 MA发送, 由 MA向终端广播 MA 的第二临时标识, 也可以采用其他的实现方式, 比如, 第二移动性管理实体冲艮 据与 MA上下文绑定的终端上下文, 确定与该 MA绑定的终端, 直接向与该 MA 綁定的终端发送 MA的第二临时标识, 不影响本发明的实现。
其中, 步骤 A具体包括如下步骤:
Al、 MA^起附着请求消息, 该附着请求消息中携带指示自己是 MA的信 ft
A2、 MME ( Mobile Management Entity, 移动性管理实体)接收到附着请 求消息后, 从 HSS ( Home Subscriber Server, 归属用户服务器)或者 AAAI艮务 器 ( Authentication, Authorization、 Accounting Server, 養权、 授权、 计费月艮务 器)获取签约数据, 对 MA进行认证。
A3、 MME在对 MA认证成功后, 向 MA返回附着接受消息, 该附着接受消 息中包括安全参数,安全参数包括:供终端对 MA进行合法性认证的认证参数、 授权 MA提供移动代理服务的时间段、 授权 MA提供移动代理服务的区域(例 如 MA可以服务的 TA列表)、 授权 MA提供移动代理服务的终端数量。
该步驟中在附着接受消息中下发安全参数主要是考虑到不仅网络要对 MA 进行认证 , 后续终端也要对 MA进行认证 , 以验证 MA已经得到网络的授权 , 授权其在特定时间的时间段、 区域为特定数量的终端提供移动代理服务。
A4、 MA注册完成后, 在特定范围内通过无线信号发送通告消息, 以通告 自己的存在, 通告消息中包括: MA的 ID、 网络为 MA分配的 GUTI、 MME为 MA分配的跟踪区列表 TAList、 MA当前所在的 TA、安全参数和 MA的容量( MA 已经服务的终端数及还可以服务的终端数, 或者负荷百分比)。
其中, MA在特定范围内发送通告消息是 MA希望该特定范围内的终端能 够接收到通告消息, 即该特定范围是终端可以与 MA进行绑定移动的范围。
该步骤中 MA发送通告消息可以是通过专门规划的频段和格式发送通告消 息,也可以利用移动通信系统现有的广播消息的频段发送通告消息,其通告消 息的格式也可以采用现有的广播消息的格式并在消息中增加特有的参数, 如 MA的 ID等。
上述步骤是通过附着流程完成 MA的认证过程, 也可以通过其他流程, 例 如 TAU ( Tracking Area Update, 跟踪区更新)流程完成 MA的认证过程, 也可 以通过新增流程完成上述 MA的认证过程, 不影响本发明的实现。
A5、 终端进入 MA的信号覆盖区域, 接收到通告消息, 并确认自己特定时 长内一直处于该 MA的信号覆盖区域内, 即确认自己粘连在 MA上; 终端根据 通告消息中的安全参数对 MA进行认证 , 确认当前 MA得到网络授权可以提供 移动代理的服务。
其中, 确认自己特定时长内一直处于该 MA的信号覆盖区域内的实现方式 具体可以是: 终端内设有定时器, 若在定时器所计的特定时长内, 该终端没有 移出 MA的信号覆盖范围, 则确定终端与 MA粘连,该 MA为终端待绑定的 MA。
在终端确认待绑定的 MA后 ,从该 MA的通告消息中获取 MA的 ID和网络为 MA分配的 GUTI, 其中, 网络为 MA分配的 GUTI可指示 MA所注册的移动管理 实体的寻址信息。
由于终端和 MA很可能都处于移动过程中, 在某些情况下可能是很短的时 间内终端处于某个 MA的信号覆盖区域内 , 然后就离开了该 MA的信号覆盖范 围, 例如安装了 MA的公共汽车行驶到一个终端附近时, 恰好位于公共汽车外 面的终端接收到该 MA的通告消息, 由于这种情况下终端不需要和 MA绑定, 所以需要终端确认自己特定时长内一直处于该 MA的信号覆盖区域内才能判断 自己在跟随该 MA移动。
参阅图 2, 步骤 B具体包括如下步骤:
Ml、 终端发送 TAU请求消息, 该 TAU请求消息是绑定请求, 该消息中携 带终端所注册的移动性管理实体的寻址信息、 终端待绑定的 MA的 ID和 MA所 注册的移动性管理实体的寻址信息以及绑定指示。终端可以在确认自己粘连在 MA后任何时机发起绑定, 作为一个较优的实施方案, 本发明实施例的终端在 确认自己粘连在 MA后的下一个 TAU发起绑定(该下一个 TAU可以是终端移出 当前跟踪区所触发的 TAU,或者终端上控制周期性触发 TAU请求的定时器超时 所触发的 TAU )。其中 MA所注册的移动性管理实体的寻址信息填写在 TAU请求 消息中的用于无线接入网路由绑定请求消息的字段内。由于用于无线接入网路 由绑定请求消息的字段原来是填写终端所注册的移动性管理实体的寻址信息 的, 为了便于无线接入网络将该绑定请求消息路由到 MA所注册的第一移动性 管理实体 MME1 ( Mobility Management Entity, 移动性管理实体)上, 在用于 无线接入网路由绑定请求消息的字段中填写 MA所注册的移动性管理实体的寻 址信息;而将终端所注册的移动性管理实体的寻址信息放在消息中一个新增的 信元中。 其中 MA所注册的移动性管理实体的寻址信息可以是 MA的 GUTI; 终 端所注册的移动性管理实体的寻址信息可以是终端的 GUTI。 无线接入网会根 据该 TAU请求消息中 MA的 GUTI中的移动性管理实体代码 MME Code将消息 路由到 MA所注册的第一移动性管理实体 MME1 ( Mobility Management Entity, 移动性管理实体)。
M2、 MME1通过 MA的 GUTI在本地查找到 MA上下文, MME1通过终端的 GUTI中的 MME Code确认终端当前注册在自己上还是注册在其他 MME上, 如 果终端注册在其他 MME上, 则 MME1从其他 MME (即终端当前注册的 MME ) 获取终端上下文, 如果终端当前注册在自己上面, 则 MME直接根据终端的 GUTI查找预存的终端上下文。
M3、 MME1将终端上下文关联到 MA上下文, 此后, MME1知道后续该绑 定终端将和 MA—起移动, MME1为终端分配索引 Index, 利用 MA的第一 GUTI ( Globally Unique Temporary Identity,全球唯一临时标识)和终端的 Index构成 终端的第一 GUTI并保存在终端的上下文中 , 此时终端的第一 GUTI是扩展的 GUTI。 MME1向终端返回携带第一 GUTI的绑定成功指示信息, 该绑定成功指 示信息可以是 TAU接受消息, 以指示绑定成功。
其中, MME1为终端分配索引 Index时, 需要保证 Index的唯一性, 即由终 端的 Index和 MA的第一 GUTI可以唯一的标识终端;
其中 , MME1向终端返回的携带终端的第一 GUTI的绑定成功指示信息还 包括: 指示终端的第一 GUTI是扩展的 GUTI的信息, 具体可以由如下两种实现 方式:
第一种方式为: 绑定成功指示信息中携带指示终端的第一 GUTI是否是扩 展的 GUTI的信元。
第二种方式为: 利用终端的第一 GUTI中的某一比特位指示终端的第一 GUTI是否是扩展的 GUTI。
在具体的实现过程中, MME1为 MA分配的第一 GUTI可以与传统的 GUTI 具有相同的长度, 此时终端的第一 GUTI就比传统的 GUTI的长度长。 优选的, 终端的第一 GUTI有可能与传统的终端的 GUTI具有相同的长度, 此时, MME1 为 MA分配的 GUTI比传统的 GUTI短一点, 可以称为特殊的 GUTI, 该特殊的 GUTI中带有 MME Code, 可以保证寻址到 MME1, MME1利用该特殊的 GUTI 和终端的 Index形成终端的第一 GUTI,此时,需要告诉终端该终端的第一 GUTI 中哪部分是特殊的 GUTI (即 MA的第一 GUTI ), 哪部分是 Index, 因此, 需要 在綁定成功指示信息中携带特殊的 GUTI的起始比特位指示信息,或 /和, Index 起始比特位指示信息, 以便终端知道哪部分是特殊的 GUTI, 哪部分是 Index, 后续利用 Index和 MA的第二临时标识形成终端的第二临时标识。 在这种情况 下, 也可以将该特殊的 GUTI的起始比特位指示信息, 或 /和, Index起始比特位 指示信息保存在终端上下文或者 MA上下文中, 以便后续终端和 MA移动到其 他 MME时, 其他 MME知道哪部分是特殊的 GUTI, 哪部分是 Index。 如果网络 侧在各 MME上已静态配置终端的 GUTI中哪部分是特殊的 MA的 GUTI ,哪部分 是 Index, 则不需要再将特殊的 GUTI的起始比特位指示信息, 或 /和, Index起 始比特位指示信息保存在终端上下文或者 MA上下文中, 后续终端和 MA移动 到其他 MME时, 其他 MME根据网络配置就知道终端的 GUTI中哪部分是特殊 的 MA的 GUTI, 哪部分是 Index。 同理, 如果网络侧在 UE上已静态配置终端的 GUTI中哪部分是特殊的 MA的 GUTI, 哪部分是 Index, 则不需要再将特殊的 GUTI的起始比特位指示信息,或 /和, Index起始比特位指示信息保存在终端上 下文或者 MA上下文中了。
终端接收 MME1发送的绑定成功指示信息,从该绑定成功指示消息中获取 终端的第一 GUTI , 并根据指示终端的第一 GUTI是否是扩展的 GUTI的信息 , 获知终端的第一 GUTI是扩展的 GUTI。
上述步骤 B中终端通过发起 TAU清求消息, 以请求网络侧将终端与 MA绑 定的, 终端也可以通过发起附着请求, 以请求网络侧将终端与 MA绑定, 不影 响本发明的实现。
可选的, 参阅图 3, 步骤 B具体包括如下步骤:
Nl、 终端向 MA^_起 TAU请求, 该 TAU请求是绑定请求, 该消息中携带终 端的 GUTI,该消息还可以携带 MA的相关信息, MA的相关信息包括: MA的 ID、 MA当前所在的 TA、 MA的 GUTI等。如果该 TAU请求中不携带 MA的相关信息, 则 MA会在 TAU请求中加入 MA的相关信息。
N2、 MA为终端分配 Index,将 Index加入终端发送的 TAU请求消息中向 MA 注册的 MME1。
其中 , 该 TAU请求消息是否仍然经过无线接入网取决于 MA选择的回程方 案, 如果 MA选择当前移动通信网的无线链接作为回程, 则该消息需要通过无 线接入网到达网络侧; 如果 MA选择其他的回程方案, 比如卫星、 WLAN (无 线局域网), 则不需要经过无线接入网。
N3、 MME1通过 MA的 GUTI查找到 MA上下文, MME1通过终端的 GUTI 中的 MME Code确认终端当前注册在自己上还是注册在其他 MME上, 如果终 端注册在其他 MME上, 则 MME1从其他 MME (即终端当前注册的 MME )获取 终端上下文, 如果终端当前注册在自己上面, 则 MME直接根据终端的 GUTI查 找预存的终端上下文。
N4、 MME1将终端上下文关联到 MA上下文, 此后, MME1知道后续该绑 定终端将和 MA—起移动 , MME1从 TAU请求消息中获取终端的 Index, 利用 MA的第一 GUTI和终端的 Index构成终端的第一 GUTI并保存在终端的上下文 中, 此时终端的第一 GUTI是扩展的 GUTI。 MME1向终端返回携带终端的第一 GUTI的绑定成功指示信息, 该绑定成功指示信息可以是 TAU接受消息, 以指 示绑定成功。
其中, MME1为终端分配索引 Index时, 需要保证 Index的唯一性, 即由终 端的 Index和 MA的第一 GUTI可以唯一的标识终端;
其中 , MME1向终端返回的携带终端的第一 GUTI的绑定成功指示信息中 还可以携带指示终端的第一 GUTI是否是扩展的 GUTI的信息, 具体可以有两种 实现方式, 与 M3中的实现方式相同, 在此不再赞述。
终端接收 MME1发送的绑定成功指示信息,从该绑定成功指示消息中获取 终端的第一 GUTI , 并根据指示终端的第一 GUTI是否是扩展的 GUTI的信息, 获知终端的第一 GUTI是扩展的 GUTI。
其中, 步骤 C具体包括:
Ql、 MA移出 TA List中的跟踪区, 进入另一个 TA, 发起 TAU请求消息。 由 于 MA原来注册的 MME ( MME1 )不能为新的 TA服务, 所以无线接入网选择 一个新的 MME (第二移动性管理实体 MME2 ) ,将 TAU请求消息路由到 MME2。
Q2、 MME2向 MA原来注册的 MME 1发送获取上下文请求和清除 MA和终 端的绑定关系的指示。
Q3、 MME1向 MME2发送 MA上下文及与 MA绑定的所有终端上下文, 并 清除 MA和终端的绑定关系。 其中, 终端上下文中保存的终端的第一 GUTI包 括: 终端的 Index和 MA的第一 GUTI。
Q4、 MME2保存 MA上下文及与 MA绑定的所有终端上下文, 为 MA分配新 的 GUTI ( MA的第二 GUTI ) , 用 MA的第二 GUTI替换终端的第一 GUTI中的 MA 的第一 GUTI, 以形成终端的第二 GUTI, 并保存在终端上下文中, MME2向 MA 发送携带 MA的第二 GUTI的位置更新接受。
具体的 , 用 MA的第二 GUTI替换终端的第一 GUTI中的 MA的第一 GUTI , 以形成终端的第二 GUTI可以是: 利用终端上下文或者 MA上下文中保存的 MA 的特殊 GUTI的起始比特位指示信息, 或 /和, Index起始比特位指示信息, 确定 MA的第一 GUTI在终端的第一 GUTI中的起始比特位 , 判断 MA的第二 GUTI与 MA的第一 GUTI是否相同, 如果否, 用 MA的第二 GUTI替换终端的第一 GUTI 中的 MA的第一 GUTI , 以将终端的第一 GUTI变成终端的第二 GUTI。
其中, 步骤 D具体包括:
MA在广播消息中广播自己的第二 GUTI ,终端接收到广播消息,终端根据 步骤 B中 M3中的用于指示终端的第一临时标识是扩展标识的信息(比如指示终 端的第一 GUTI是否是扩展的 GUTI的信元或者第一 GUTI中的某一比特位), 确 认终端的第一临时标识是扩展标识, 根据 MA的第一临时标识的起始比特位指 示信息, 和 /或终端的 Index的起始比特位指示信息, 确定 MA的第一临时标识 在终端的第一临时标识中的起始比特位, 判断 MA的第二 GUTI与 MA的第一 GUTI是否相同 , 如果否, 用 MA的第二 GUTI替换终端的第一 GUTI中的 MA的 第一 GUTI, 以将终端的第一 GUTI变成终端的第二 GUTI。 其中, 终端根据步 骤 B中 M3中的用于指示终端的第一临时标识是扩展标识的信息(比如指示终端 的第一 GUTI是否是扩展的 GUTI的信元或者第一 GUTI中的某一比特位), 确认 终端的第一临时标识是扩展标识,可以在终端接收到 MA的第二 GUTI之前, 步 骤 B中 M3之后执行, 不影响本发明的实现。
本发明实施例二在终端与 MA绑定过程中, 第一移动性管理实体( MME1 ) 利用终端的 Index和 MA的第一 GUTI组成终端的第一 GUTI并发送给终端, 使终 端的第一 GUTI与 MA关联; 进一步, 在 MA和终端发生切换时, 第二移动性管 理实体自动将终端的 Index和 MA的第二 GUTI构成终端的第二 GUTI保存在终 端上下文中; 终端在获取到 MA的第二 GUTI后,会利用 MA的第二 GUTI和自身 索引 Index (终端的第一 GUTI中的 Index )构成自己的第二 GUTI, 而不再需要 网络侧分配临时标识, 减轻了网络的负担。
图 4和图 5示出了 MA与终端绑定后, 网络侧寻呼终端的信令流程图,其中, 网络侧寻呼终端的移动性管理实体可以是上述的 MME 1或者 MME2 , 网络侧寻 呼终端有如下二种方式:
参阅图 4, 第一种方式包括:
Pl、 MME向接入网管理网元发送携带终端的 GUTI的寻呼消息。
其中, 终端的 GUTI包括: MA的 GUTI和终端的 Index。
P2、 接入网管理网元广播寻呼消息。
P3、 终端根据寻呼消息中携带的终端的 GUTI, 确认网络侧在寻呼自己, 向 MME返回寻呼响应消息。
参阅图 5, 第二种方式包括:
VI、 MME确定需要寻呼的终端后, >据终端的 GUTI, 确定与终端绑定的 MA, 向该 MA^送寻呼消息, 该寻呼消息中携带终端的 Index。
其中, 该寻呼消息中也可以直接携带终端的 GUTI, 不影响本发明的实现。 V2、 MA广播携带终端的 Index的寻呼消息。
V3、 终端根据寻呼消息中携带的终端的 Index, 确认网络侧在寻呼自己, 向 MME返回寻呼响应消息。
以上两种寻呼方式, 可以利用终端的 GUTI (包括 MA的 GUTI和终端的 Index )或者终端的 Index实现网络侧寻呼终端的目的。
上述各实施例中以 MME作为移动性管理实体进行描述的, 本发明实施例 所提供的技术方案中的移动性管理实体也可以是其他领域中的移动性管理装 置, 比如 SGSN ( Serving GPRS Support Node, 服务 GPRS支持节点), 相应的, 分组临时移动用户身份标识), MA的临时标识为 MA的 P-TMSI, 同样可以实现 本发明的目的。 实施例三:
参阅图 7, 本发明实施例三提供一种移动性管理装置, 可以是上述第一移 动性管理实体, 包括:
第一消息接收单元 701 , 用于接收终端的绑定请求消息;
绑定单元 702, 用于在接收到所述绑定请求消息后, 获取终端上下文, 将
MA上下文和所述终端上下文绑定;
终端的 Index获取单元 703, 用于获取终端的 Index;
终端的第一临时标识构成单元 704, 用于利用所述终端的 Index和 MA的第 一临时标识构成终端的第一临时标识,将所述终端的第一临时标识保存在所述 终端上下文中;
终端的第一临时标识发送单元 705, 用于向所述终端发送携带所述终端的 第一临时标识的响应消息。
该设备还包括:
第二消息接收单元 706 , 用于接收 MA切换到的第二移动性管理实体发送 的获取上下文请求和清除绑定关系指示;
上下文发送单元 707,用于在第二消息接收单元 706接收到所述获取上下文 请求后, 向所述第二移动性管理实体发送所述 MA上下文和终端上下文;
删除单元 708, 用于在第二消息接收单元接收到清除绑定关系指示后, 删 寻呼消息发送单元 709, 用于向接入网管理网元或者 MA发送携带终端的 第一临时标识的寻呼消息;或者,用于向 MAJ^送携带终端的 Index的寻呼消息。
本发明实施例三在终端与 MA绑定过程中, 移动性管理装置(第一移动性 管理实体)利用终端的 Index和 MA的第一临时标识组成终端的第一临时标识并 发送给终端, 使终端的第一临时标识与 MA关联; 进一步, 可以利用与 MA关 联的终端的第一临时标识寻呼终端。
实施例四:
参阅图 8, 本发明实施例四提供一种终端, 为了使终端各单元的连接关系 更加清楚明白, 图 8中也示出了第一移动性管理实体, 该终端具体包括:
发送单元 801, 用于发送绑定请求消息; 终端的第一临时标识接收单元 802, 用于接收所述 MA注册的第一移动性 管理实体发送的携带所述终端的第一临时标识的响应消息,所述终端的第一临 时标识包括: 所述 MA的第一临时标识和终端的 Index, 所述携带所述终端的第 一临时标识的消息是所述 MA注册的第一移动性管理实体接收到所述绑定请求 消息后发出的。
该设备还包括:
MA的第二临时标识获取单元 803 , 用于接收所述 MA发送的 MA的第二临 时标识;
终端的第二临时标识构成单元 804, 用于将 MA的第二临时标识替换所述 终端的第一临时标识中的 MA的第一临时标识, 以将终端的第一临时标识变成 终端的第二临时标识。
本发明实施例四的终端通过向 MA注册的第一移动性管理实体发送绑定请 求, 触发第一移动性管理实体将终端上下文与 MA上下文绑定, 并分配与 MA 相关联的终端的第一临时标识发给终端 , 终端接收到与 MA相关联的终端第一 临时标识; 进一步, 在 MA和终端发生切换时, 终端在接收到 MA的第二临时 标识后, 会利用 MA的第二临时标识和自身索引 Index (终端的第一临时标识中 的 Index )构成自己的第二临时标识, 而不再需要网络侧分配临时标识, 减轻 了网络的负担。
实施例五:
本发明实施例五提供一种网絡系统, 包括: 第一移动性管理实体和终端; 第一移动性管理实体, 用于在接收到终端发送的绑定请求消息后, 获取终 端上下文, 将 MA上下文和所述终端上下文绑定; 获取终端的 Index, 利用所述 终端的 Index和 MA的第一临时标识构成终端的第一临时标识并保存在所述终 端上下文中 , 向所述终端发送携带所述终端的第一临时标识的响应消息; 终端, 用于向所述第一移动性管理实体发送绑定请求消息; 接收所述第一 移动性管理实体发送的携带所述终端的第一临时标识的响应消息。
该网络系统还包括:
第二移动性管理实体, 用于在接收到 MA发送的位置更新请求后, 从第一 移动性管理实体获取 MA上下文和包含终端的第一临时标识的终端上下文; 分 配 MA的第二临时标识, 利用所述终端的第一临时标识中的终端的 Index和 MA 的第二临时标识构成终端的第二临时标识保存在所述终端上下文中; 将所述
MA的第二临时标识传输至终端;
其中,终端还用于利用所述终端的第一临时标识中的 Index和 MA的第二临 时标识构成终端的第二临时标识。
本发明实施例五中的终端通过向 MA注册的第一移动性管理实体发送绑定 请求,触发第一移动性管理实体将终端上下文与 MA上下文绑定,并分配与 MA 相关联的终端的第一临时标识发给终端, 终端接收到与 MA相关联的终端第一 临时标识; 进一步, 在 MA和终端发生切换时, 第二移动性管理实体自动将终 端的 Index和 MA的第二临时标识构成终端的第二临时标识保存在终端上下文 中; 终端在获取到 MA的第二临时标识后, 会利用 MA的第二临时标识和自身 索引 Index (终端的第一临时标识中的 Index )构成自己的第二临时标识, 而不 再需要网络侧分配临时标识, 减轻了网络的负担。
以上对本发明实施例所提供的移动性管理方法、移动性管理装置及终端设 阐述,以上实施例的说明只是用于帮助理解本发明的方法及其核心思想;同时, 对于本领域的一般技术人员,依据本发明的思想,在具体实施方式及应用范围 上均会有改变之处, 综上所述, 本说明书内容不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种移动性管理方法, 其特征在于, 包括:
移动代理 MA所注册的第一移动性管理实体在接收到终端的绑定请求消 息后, 获取终端的索引 Index, 利用所述终端的 Index和所述 MA的第一临时标 识构成终端的第一临时标识 ,向所述终端发送携带所述终端的第一临时标识的 消息。
2、 根据权利要求 1所述的方法, 其特征在于,
在 MA所注册的第一移动性管理实体接收终端的绑定请求消息之前, 该方 法还包括:
所述 MA收到终端的绑定请求消息, 分配终端的 Index, 在所收到的终端的 绑定请求消息中加入所述终端的 Index后转发至所述第一移动性管理实体; 所述获取终端的 Index具体为:
第一移动性管理实体从 MA转发的所述终端的绑定请求消息中获取终端 的 Index。
3、 根据权利要求 1所述的方法, 其特征在于,
所述获取终端的 Index具体为:
所述第一移动性管理实体为所述终端分配 Index。
4、根据权利要求 1所述的方法, 其特征在于, 在向所述终端发送携带所述 终端的第一临时标识的消息之后, 该方法还包括:
第二移动性管理实体接收 MA发送的位置更新请求后, 从第一移动性管理 实体获取终端的第一临时标识;
所述第二移动性管理实体分配 MA的第二临时标识 , 利用所述终端的第一 临时标识中的终端的 Index和 MA的第二临时标识构成终端的第二临时标识 ,将 所述 MA的第二临时标识传输至终端。
5、 根据权利要求 4所述的方法, 其特征在于,
利用所述终端的第一临时标识中的终端的 Index和 MA的第二临时标识构 成终端的第二临时标识具体为:
所述第二移动性管理实体用 MA的第二临时标识替换所述终端的第一临 时标识中的 MA的第一临时标识, 以将终端的第一临时标识变成终端的第二临 时标识。
6、 根据权利要求 5所述的方法, 其特征在于, 所述用 MA的第二临时标识 替换所述终端的第一临时标识中的 MA的第一临时标识具体为:
根据 MA的第一临时标识的起始比特位指示信息, 和 /或终端的 Index的起 始比特位指示信息, 确定 MA的第一临时标识在所述终端的第一临时标识中的 起始比特位 , 用 MA的第二临时标识替换所述终端的第一临时标识中的 MA的 第一临时标识。
7、 根据权利要求 4所述的方法, 其特征在于,
所述将所述 MA的第二临时标识传输至终端具体为:
所述第二移动性管理实体向所述 MA^送携带所述 MA的第二临时标识的 位置更新接受消息, 所述 MA向终端广播所述 MA的第二临时标识。
8、 根据权利要求 1所述的方法, 其特征在于,
在向所述终端发送携带终端的第一临时标识的消息之后,当所述终端被寻 呼时, 该方法还包括:
第一移动性管理实体向接入网管理网元发送携带终端的第一临时标识的 寻呼消息; 所述接入网管理网元利用所述终端的第一临时标识, 寻呼终端; 或者,
第一移动性管理实体向 MA发送寻呼消息, 所述寻呼消息中携带终端的 Index; 所述 MA利用所述终端的 Index, 寻呼终端;
或者,
第一移动性管理实体向 MA发送寻呼消息, 所述寻呼消息中携带终端的第 一临时标识; 所述 MA利用所述终端的第一临时标识中的终端的 Index, 寻呼终 端。
9、 一种移动性管理方法, 其特征在于, 包括:
发送绑定请求消息 , 所述绑定请求消息被路由到 MA注册的第一移动性管 理实体;
接收所述 MA注册的第一移动性管理实体发送的携带所述终端的第一临 时标识的消息, 其中, 所述终端的第一临时标识包括: 所述 MA的第一临时标 识和终端的 Index。
10、 根据权利要求 9所述的方法, 其特征在于, 在接收所述 MA注册的第 一移动性管理实体发送的携带所述终端的第一临时标识的消息之后 ,当终端和 MAJ¾_生移动时, 该方法还包括:
终端接收所述 MA发送的 MA的第二临时标识;
终端利用所述终端的第一临时标识中的 Index和 MA的第二临时标识构成 终端的第二临时标识。
11、 根据权利要求 10所述的方法, 其特征在于,
所述携带所述终端的第一临时标识的消息中还包括用于指示所述终端的 第一临时标识是扩展标识的信息;
所述终端利用所述终端的第一临时标识中的 Index和 MA的第二临时标识 构成终端的第二临时标识具体为:
所述终端根据用于指示所述终端的第一临时标识是扩展标识的信息,确认 终端的第一临时标识是扩展标识后, 用 MA的第二临时标识替换所述终端的第 一临时标识中的 MA的第一临时标识, 以将终端的第一临时标识变成终端的第 二临时标识。
12、 根据权利要求 10所述的方法, 其特征在于,
所述携带所述终端的第一临时标识的消息中还包括: MA的第一临时标识 的起始比特位指示信息, 和 /或终端的 Index的起始比特位指示信息;
所述终端利用所述终端的第一临时标识中的 Index和 MA的第二临时标识 构成终端的第二临时标识具体为:
根据 MA的第一临时标识的起始比特位指示信息, 和 /或终端的 Index的起 始比特位指示信息, 确定 MA的第一临时标识在所述终端的第一临时标识中的 起始比特位 , 用 MA的第二临时标识替换所述终端的第一临时标识中的 MA的 第一临时标识。
13、 一种移动性管理装置, 其特征在于, 包括:
第一消息接收单元, 用于接收终端的绑定请求消息;
终端的 Index获取单元 , 用于在接收到终端的绑定请求消息后, 获取终端 的 Index;
终端的第一临时标识构成单元,用于利用所述终端的 Index和 MA的第一临 时标识构成终端的第一临时标识;
终端的第一临时标识发送单元,用于向所述终端发送携带所述终端的第一 临时标识的消息。
14、 根据权利要求 13所述的设备, 其特征在于, 该设备还包括: 寻呼消息发送单元, 用于向接入网管理网元或者 MAJ^送携带终端的第一 临时标识的寻呼消息; 或者, 用于向 MAJ^送携带终端的 Index的寻呼消息。
15、 一种终端, 其特征在于, 包括:
发送单元, 用于发送绑定请求消息;
终端的第一临时标识接收单元, 用于接收 MA注册的第一移动性管理实体 发送的携带所述终端的第一临时标识的消息,其中,所述终端的第一临时标识 包括: 所述 MA的第一临时标识和终端的 Index, 所述携带所述终端的第一临时 标识的消息是所述 MA注册的第一移动性管理实体接收到所述绑定请求消息后 发出的。
16、 根据权利要求 15所述的终端, 其特征在于, 该设备还包括:
MA的第二临时标识获取单元,用于接收所述 MA发送的 MA的第二临时标 识;
终端的第二临时标识构成单元,用于将 MA的第二临时标识替换所述终端 的第一临时标识中的 MA的第一临时标识,以将终端的第一临时标识变成终端 的第二临时标识。
PCT/CN2009/074750 2008-11-03 2009-11-02 移动性管理方法、移动性管理装置及终端设备 WO2010060339A1 (zh)

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