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WO2010015170A1 - 移动性管理处理方法、系统和设备 - Google Patents

移动性管理处理方法、系统和设备 Download PDF

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Publication number
WO2010015170A1
WO2010015170A1 PCT/CN2009/072849 CN2009072849W WO2010015170A1 WO 2010015170 A1 WO2010015170 A1 WO 2010015170A1 CN 2009072849 W CN2009072849 W CN 2009072849W WO 2010015170 A1 WO2010015170 A1 WO 2010015170A1
Authority
WO
WIPO (PCT)
Prior art keywords
network element
mobility management
area information
location area
current
Prior art date
Application number
PCT/CN2009/072849
Other languages
English (en)
French (fr)
Inventor
陈中平
胡伟华
吴问付
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP09804470.4A priority Critical patent/EP2296418B1/en
Publication of WO2010015170A1 publication Critical patent/WO2010015170A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • 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
    • H04W8/08—Mobility data transfer
    • H04W8/12—Mobility data transfer between location registers or mobility servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network

Definitions

  • Mobility management processing method, system and device The present application claims priority to Chinese patent application filed on August 5, 2008, Chinese Patent Office, Application No. 200810129669.5, entitled “Mobility Management Processing Method, System and Equipment” The entire contents of which are incorporated herein by reference.
  • Technical field
  • the present invention relates to the field of communications, and in particular, to a mobility management processing method, system, and device. Background technique
  • FIG. 1 a schematic diagram of a wireless evolved network architecture provided by the prior art, where the core network of the current wireless evolved network mainly includes a Mobility Management Entity (hereinafter referred to as: ⁇ )
  • S-GW Serving Mobility Management Entity
  • P-GW Packet Data Network Gateway
  • MME Mobility Management Entity
  • the mobility management entity is responsible for non-access-layer NAS (NAS) signaling and NAS signaling encryption, roaming, tracking, etc., assigning user temporary identity, security functions, etc., which corresponds to the current general purpose.
  • NAS non-access-layer NAS
  • S-GW Mobile control system UMTS (UMT) UMTS internal control GPRS support node (hereinafter referred to as: SGSN) control plane part
  • S-GW is responsible for local mobility anchor and third generation 3rd Generation Partnership Project (3GPP) within the system
  • 3GPP 3rd Generation Partnership Project
  • P-GW is responsible for policy enforcement and charging and lawful interception capabilities.
  • the inventor has found that the Idle mode signalling reduction (ISR) in the idle mode requires the terminal UE to simultaneously register in the 2G/3G system and system architecture evolution (System Architechure Evolution, Hereinafter referred to as: SAE) system
  • SAE System Architechure Evolution
  • the device maintains a consistent status indication, that is, whether the terminal UE initiates the ISR function, and has an impact on almost all signaling processes. complex.
  • the independent SGSN and the MME support the ISR, and the bearer synchronization between the MME and the SGSN is required.
  • the so-called bearer synchronization that is, when the terminal UE adds/modifies/deletes the bearer under a radio access type (Radio Access Type, hereinafter referred to as RAT), it is not necessary to synchronize the change to another different RAT in real time, but When the UE needs to wait for the UE to reselect the cell access of different RATs, the synchronization of the bearer context is initiated.
  • RAT Radio Access Type
  • the embodiment of the present invention provides a mobility management processing method, system, and device.
  • the technical solution is as follows:
  • a mobility management processing method in which a terminal accesses a core network by using a first access type, the method includes:
  • the unified mobility management network element obtains the current first location area information and the current second location area information of the terminal, where the current second location area information is obtained by mapping the current first location area information; And transmitting, by the first location area information and the current second location area information, a message carrying an activation indication identifier to the terminal, where the activation indication identifier is used to indicate that the terminal activates an ISR in an idle mode.
  • a mobility management processing system comprising: an integrated mobility management network element and a terminal device, wherein the unified mobility management network element is connected to a radio access network GERAN and a universal mobile communication system terrestrial radio access network UTRAN Providing communication services for the terminal device;
  • the unified mobility management network element is configured to acquire current first location area information and current second location area information of the terminal device, where the current second location area information is used to map the current first location area information. Obtaining; and configured to use the current first location area information and the current second location area according to the current Sending, to the terminal device, a message carrying an activation indication identifier, where the activation indication identifier is used to indicate that the terminal device activates an ISR in an idle mode;
  • the terminal device is configured to access the core network by using the first access type, and is configured to obtain an activation indication identifier sent by the unified mobility management network element, and activate the ISR according to the activation indication identifier.
  • An integrated mobility management network element where the unified mobility management network element is connected to the radio access network GERAN and the universal mobile communication system terrestrial radio access network UTRAN to provide communication services for the terminal device;
  • the network element includes :
  • the obtaining module is configured to obtain the current first location area information and the current second location area information of the terminal device, where the current second location area information is specifically obtained by mapping the current first location area information;
  • a first sending module configured to send, according to the current first location area information and the current second location area information acquired by the acquiring module, a message carrying an activation indication identifier, where the activation indication identifier is used Instructing the terminal device to activate the ISR in an idle mode.
  • An access network element including:
  • An obtaining module configured to acquire current current location area information of the terminal device
  • mapping module configured to acquire, according to a preset mapping relationship, current second location area information corresponding to the current first location area information acquired by the acquiring module
  • a sending module configured to send the current first location area information obtained by the obtaining module and the current second location area information obtained by mapping the mapping module.
  • a service gateway including:
  • a receiving module configured to receive a message that is sent by the unified mobility management network element and carries a first control plane address, a second control plane address, and an access type
  • a sending module configured to select a corresponding control plane address from the first control plane address and the second control plane address according to the access type received by the receiving module, and send a message to the selected control plane address.
  • the beneficial effects of the technical solutions provided by the embodiments of the present invention are:
  • the unified mobility management network element provided by the embodiment of the present invention can directly activate the terminal device.
  • ISR association simplifies the implementation of ISR functions, optimizes network performance, and reduces the operation and maintenance costs of network devices.
  • FIG. 1 is a schematic diagram of a wireless evolution network architecture provided by the prior art
  • FIG. 2 is a flowchart of a method for processing mobility management according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic flowchart of activating an ISR association according to Embodiment 1 of the present invention
  • FIG. 4 is a flowchart of a method for processing mobility management according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic flowchart of activating an ISR association according to Embodiment 2 of the present invention
  • FIG. 6 is a flowchart of a mobility management processing method according to Embodiment 3 of the present invention.
  • FIG. 6 is a schematic flowchart of a notification service gateway in an activation ISR process provided by Embodiment 3 of the present invention;
  • FIG. 8 is a flowchart of a mobility management processing method according to Embodiment 4 of the present invention
  • FIG. 9 is a flow chart showing the context synchronization of the unified mobility management network element according to Embodiment 4 of the present invention
  • FIG. 10 is a flowchart of a mobility management processing method according to Embodiment 5 of the present invention
  • FIG. 11 is a flow chart showing the context synchronization of the unified mobility management network element according to Embodiment 5 of the present invention
  • FIG. 12 is a schematic structural diagram of a mobility management processing system according to Embodiment 6 of the present invention
  • FIG. 13 is another schematic structural diagram of a mobility management processing system according to Embodiment 6 of the present invention
  • Figure 1 is a schematic structural diagram of an access mobility management network element
  • Figure 15 is a schematic structural diagram of an access network element according to Embodiment 7 of the present invention
  • FIG. 16 is a schematic structural diagram of a service gateway according to Embodiment 8 of the present invention.
  • FIG. 17 is a schematic diagram of a reference network architecture provided by an embodiment of the present invention. detailed description
  • the embodiment of the present invention provides a unified mobility management network element, which integrates the functions of the traditional MME and the SGSN, and combines the functions of the MME/SGSN, in addition to operation and maintenance and cost advantages, In addition to the considerations of the product architecture design, it is also possible to provide a function of reducing the signaling of each interface, speeding up the mobility management process, and the like, and simplifying the implementation of the ISR.
  • the management network element reduces the signaling load of the S3/Gn interface by building the MME/SGSN.
  • the unified mobility management network element internalizes the signaling interaction between the network elements required by the ISR, and the signaling interaction includes establishing an ISR association (storing each other's address), carrying a context synchronization action, and
  • the unified SGSN/MME has the capability to perform internal bearer context synchronization without the indication of the terminal UE. Therefore, it may also be independent of the indication of the terminal UE or restrict the use of Temporary Mobile Subscriber Identity (TMSI). .
  • TMSI Temporary Mobile Subscriber Identity
  • the unified mobility management network element may also block the impact of the ISR on the S-GW, that is, the unified mobility management network element may perform the same as if the ISR is not enabled even if the ISR is enabled.
  • the functions supported by the unified mobility management network element provided by the embodiment of the present invention are fully described in the form of multiple embodiments, and the characteristics of the mobility management network element integrated with the SGSN/MME function are simplified, and the ISR is simplified. Functional implementation that optimizes network performance.
  • FIG. 2 is a flowchart of a method for processing mobility management according to Embodiment 1 of the present invention.
  • the case where a terminal UE accesses an SGSN for the first time is taken as an example.
  • the content of the method is as follows:
  • Step 101 The terminal UE sends a registration request.
  • the terminal UE accesses the core network through the 2G/3G access network as an example for description.
  • the attach request may be adopted (Attach) Request ) or location update (Routeing Area Update: RAU) request (Request) is implemented.
  • Step 102 The radio network controller (Radio Network Controller, hereinafter referred to as RNC) in the 2G/3G access network receives the registration request of the terminal UE, and learns the routing area identity (hereinafter referred to as the routing area identity) of the terminal UE. RAI), and then obtain the tracking area identifier TAI of the terminal UE, and the obtaining manner may be: deriving the terminal by pre-configuring the network topology (ie, the mapping relationship between the RAI and the Tracking Area Identity (TAI)) After the TAI. After obtaining the TAI and RAI of the UE, the RNC sends a registration request to the unified mobility management network element, where the registration request carries the RAI and TAI of the terminal UE.
  • RNC Radio Network Controller
  • the registration request in this step may be implemented by using an attach request or a location update request RAU Request of the RAI and the TAI of the carrying terminal.
  • Step 103 After receiving the registration request from the RNC, the unified mobility management network element replies with a registration response according to the RAI and the TAI of the terminal UE carried in the registration request, where the registration response carries the ISR indication identifier and is the terminal.
  • the Packet Temporary Mobile Subscriber Identity hereinafter referred to as P-TMSI
  • GUTI Globally Unique Temporary Identity
  • the registration response may also carry the unified mobility management network element indication information, for example: "Combined Indication" indication information.
  • the unified mobility management network element indication information is used to notify the UE that the registration response is sent by the unified mobility management network element, so that the UE perceives that the current registration is in a unified mobility management network element.
  • the unified mobility management network element indication information may also be implicit.
  • the UE may be aware of the current registration in a unified mobility management network element by obtaining the P-TMSL GUTI at the same time.
  • the ISR indication identifier is used to indicate that the UE activates an ISR association.
  • the UE detects that the bearer changes (for example, adds/modifies/deletes the bearer), and the UE moves according to the combination.
  • the NE indicates the information, and chooses to continue to maintain the ISR association without deactivating the ISR association.
  • the registration response in this step may be implemented by using an ISR indication identifier, and a P-TMSI, a GUTI, a RAI, a TAI List, an Attach Accept or a Location Update, and a RAU Accept, which are allocated to the terminal UE. .
  • the base station eNodeB of the E-UTRAN can also derive the TAI according to the obtained TAI of the terminal UE, and then the TAI and the RAI of the terminal UE.
  • the upper mobility management network element in the core network, and then the unified mobility management network element replies with the ISR indication identifier and the P- allocated to the terminal UE according to the obtained TAI and RAI of the terminal UE. Response message of TMSI, GUTL RAL TAI List.
  • the method provided by the embodiment of the present invention only affects the configuration of the access network in the network topology, and the number of configured network topology data is not too large relative to a single access network element (RNC/eNodeB).
  • FIG. 3 is a schematic flowchart of the active ISR association provided by the embodiment 1 of the present invention, and the unified mobility management network element provided by the embodiment of the present invention is used.
  • the ISR can be directly activated by the user's attach or Inter RAU/TAU procedure, and the terminal is simultaneously assigned P-TMSI and GUTI, and the corresponding RAI and TAI List are specified for the user.
  • Embodiment 2 a flowchart of a mobility management processing method according to Embodiment 2 of the present invention is described by taking a case where a terminal UE accesses an SGSN for the first time as an example.
  • the difference from Embodiment 1 lies in the mapping relationship between RAI and TAI.
  • the configuration of the network topology is completed on the side of the unified mobility management network element, and the method content is as follows:
  • Step 201 The terminal UE sends a registration request.
  • the terminal UE accesses the core network through the 2G/3G access network as an example for description.
  • the attachment request can be adopted by attaching The method of request or location update request RAU Request is implemented.
  • Step 202 After receiving the registration request of the terminal, the RNC in the 2G/3G access network learns the current RAI of the terminal, and sends a registration request to the unified mobility management network element, where the registration request carries the RAII of the terminal.
  • the registration request in this step may be implemented by using an RAI and a TAI attach request Attach Request or a location update request RAU Request.
  • Step 203 The unified mobility management network element receives the registration request from the RNC, obtains the RAI of the terminal UE, and derives according to the acquired RAI of the terminal UE and the pre-configured network topology (ie, the mapping relationship between the TAI and the RAI). For the TAI corresponding to the RAI.
  • Step 204 The unified mobility management network element replies with a registration response according to the acquired RAI and TAI of the terminal UE, where the registration response carries an ISR indication identifier and a P-TMSL GUTK RAK TAI List allocated for the terminal UE.
  • the registration response may also carry the unified mobility management network element indication information, for example: "Combined Indication" indication information.
  • the unified mobility management network element indication information is used to notify the UE that the registration response is sent by the unified mobility management network element, so that the UE perceives that the current registration is in a unified mobility management network element.
  • the unified mobility management network element indication information may also be implicit.
  • the UE may obtain the P-TMSI and the GUTI to simultaneously register the current registration in a unified mobility management network element.
  • the ISR indication identifier is used to indicate that the UE activates an ISR association.
  • the UE activates the ISR association in the scenario of the unified mobility management network element then when the UE senses that the bearer changes (for example, adding/repairing/deleting the bearer), the UE according to the The unified mobility management network element indicates that the UE is registered in the unified mobility management network element, thereby selecting to continue to maintain the ISR association without deactivating the ISR association.
  • the registration response in this step may be implemented by using an ISR indication identifier, and a P-TMSI, a GUTI, a RAI, a TAI List, an Attach Accept or a Location Update, and a RAU Accept, which are allocated to the terminal UE. .
  • the unified mobility management network element in the core network can also derive the RAI through the TAI reported by the base station eNodeB of the E-UTRAN.
  • the method provided by the embodiment of the present invention does not need to modify the current access network, and only needs to perform network topology configuration work on the unified mobility management network element.
  • the method provided by the embodiment of the present invention is a schematic flowchart of activating an ISR association according to Embodiment 2 of the present invention.
  • the unified mobility management network element provided by the embodiment of the present invention may be accessed by a user or an Inter RAU.
  • the /TAU process directly activates the ISR, and simultaneously allocates P-TMSI and GUTI to the terminal, and specifies the corresponding RAI and TAI List for the user.
  • the method of the ISR will discuss how to activate the ISR by the notification service gateway by using the unified mobility management network element provided by the embodiment of the present invention in the process of activating the ISR process in the mobility management process. as follows:
  • FIG. 6 is a flowchart of a mobility management processing method according to Embodiment 3 of the present invention.
  • the method discusses how to implement a notification service gateway S-GW during a process of activating an ISR, and the terminal UE accesses the SGSN for the first time.
  • the situation is described as an example.
  • the method is as follows:
  • Step 301 The unified mobility management network element sends a request message to the serving gateway S-GW, where the message carries the first control plane address, the second control plane address, the access type, and the ISR in the unified mobility management network element. Indication, unity identification.
  • the first control plane address is specifically the control of the SGSN, as described in the embodiment of the present invention, where the terminal UE accesses the SGSN for the first time.
  • the address of the SGSN tunnel end identifier Identifier hereinafter referred to as TEID
  • TEID SGSN tunnel end identifier Identifier
  • the access type RAT TYPE is set to access through the 2G/3G access network
  • the second control plane address is the control plane of the MME.
  • the address is the MME TEID; the ISR indication is used to indicate that the serving gateway S-GW activates the ISR;
  • the advertising service gateway S-GW, the network entity that sends the request message is specifically a unified mobility management network element that combines the SGSN function and the MME function.
  • the unifying identifier may also be implicit.
  • the S-GW may be aware of the network entity that sends the request message by obtaining the first control plane address and the second control plane address information at the same time, specifically, the SGSN function and the MME function.
  • a unified mobility management network element is the MME TEID; the ISR indication is used to indicate that the serving gateway S-GW activates the ISR;
  • the advertising service gateway S-GW, the network entity that sends the request message is specifically a unified mobility management network element that combines the SGSN function and the MME function.
  • the unifying identifier may also be implicit.
  • the S-GW may be aware of the network entity that sends the request message by
  • the specific access type RAT Type may be set to "1" for the first access type (for example, SGSN access), and "0" for the second access type (for example, MME access),
  • the embodiment does not limit the specific implementation form and manner of the access type setting.
  • the request message involved in the step may be requested to be created by the J-built proprietary device carrying the MME TEID for control plane, the SGSN TEID for control plane, the address, the RAT Type, the ISR, and the Combined Indication cell.
  • the default Bearer Request implementation is used to transmit not only the control plane address SGSN TEID for control plane of the SGSN to the serving gateway S-GW but also the control plane address MME TEID for control plane of the MME to the serving gateway S- GW.
  • the ISR indicates that the S-GW activates the ISR
  • the Combined Indication indicates that the S-GW, the SGSN, and the MME are a one-to-one device.
  • the subsequent S-GW selects the appropriate control plane address based on the saved RAT Type.
  • the created dedicated bearer request also carries other cells such as IMSI, default bearer quality of service, Default Bearer QoS (Quality of Service), and the like.
  • the request message involved in the step may be implemented by using the Bear TEID for control plane, the SGSN TEID for control plane, the address, the RAT Type, the ISR, and the Combined Indication cell to create a bearer request.
  • the create bearer request also carries other cells such as IMSI, bearer contexts and the like.
  • the request message involved in the step may be implemented by the Update Bearer Request carrying the update request of the MME TEID for control plane, the SGSN TEID for control plane, address, the RAT Type, the ISR, and the Combined Indication cell. Skill The domain technician can know that the update bearer request also carries other cells such as negotiated quality of service (QoS Negotiated), service network (service network), and the like.
  • QoS Negotiated quality of service
  • service network service network
  • Step 302 The serving gateway S-GW sends a reply message to the unified mobility management network element.
  • the serving gateway S-GW After receiving the request message, the serving gateway S-GW sends a reply message to the unified mobility management network element.
  • the reply message may be correspondingly created in the step 301 to create a dedicated bearer request. Create a Load Bearer Requst/Update Bearer Request Update Bearer Request, and accordingly, create a dedicated bearer response Creat Default Bearer ResponseA&J Built! Response Bearer Response/Update Bearer Response Update Bearer Response.
  • Step 303 The serving gateway receives the downlink message from the network side, and sends a message to trigger the terminal UE in the idle state according to the obtained access type of the terminal UE and the corresponding control plane address.
  • the downlink message from the network side is specifically downlink data or signaling.
  • the service gateway S-GW After the service gateway S-GW receives the request message of the unified mobility management network element, according to the cell carried in the request message (the first control plane address and the second control plane in the unified mobility management network element) The address, the access type, and the ISR indication and the unified identifier are obtained. After obtaining the access type of the terminal UE, the control plane address corresponding to the access type is selected. For example, if the access type RAT Type of the terminal is SGSN, the selected control plane address is SGSN TEID.
  • FIG. 7 is a schematic flowchart of a notification service gateway in an activation ISR process according to Embodiment 3 of the present invention, where the unified mobility management network element passes The SGSN control plane address and the MME control plane address are sent to the serving gateway S-GW, and indicate that the device is a unified device at this time, and the subsequent serving gateway S-GW selects an appropriate control plane address according to the saved access type RAT Type. Paging for the terminal UE in the idle state is implemented.
  • FIG. 8 is a flowchart of a method for processing mobility management according to Embodiment 4 of the present invention.
  • the case where a terminal UE accesses an SGSN for the first time is taken as an example.
  • the content of the method is as follows:
  • Step 401 The unified mobility management network element sends a synchronization request to the serving gateway S-GW, where the synchronization request carries an access type RAT Type, a first control plane address, an ISR indication, and a unitization identifier.
  • the first control plane address is specifically the SGSN TEID for the control plane, and the synchronization request is in the following manner:
  • the creator of the PN Type, the SGSN TEID for contrl plane, the ISR indication, and the identifiable identifier are created by the CreatDefault Bearer Request, and the person skilled in the art can know that the CreatDefault Bearer is created. Request also carries other cells, such as IMSI, Selection Mode, and so on.
  • the access type RAT Type advertises the access type of the serving gateway terminal UE
  • the ISR indicates that the serving gateway S-GW activates the ISR
  • the unified indication Combined Indication Notification Service Gateway sends the synchronization request by the unified mobility management network element.
  • the subsequent service gateway S-GW selects an appropriate control plane address according to the acquired RAT Type of the terminal UE.
  • the Update Bearer Request carries other cells, such as QoS Negotiated. and many more.
  • the update bearer request is implemented by the update bearer request carrying the access type RAT Type, the SGSN TEID for control plane, the ISR indication, and the unification identifier.
  • the update bearer request also carries other cells, and the interface is new MME. Address and TEID, QoS Negotiated, and more.
  • Step 402 The serving gateway sends a synchronization response to the unified mobility management network element.
  • the synchronization response may be corresponding to the creation involved in step 401 when the specific implementation is implemented.
  • the load request Creat Default Bearer Request/Create Request Bearer Requst correspondingly, create a dedicated 7-load response Creat Default Bearer Response A&J built! Load Bearer Response Update Bearer Response Update Bearer Response.
  • Step 403 The unified mobility management network element performs internal context synchronization.
  • the internal context synchronization is performed in the step 403.
  • the terminal UE is the first time to access the SGSN, and the internal context synchronization is triggered to trigger the MME side in the unified mobility management network element.
  • Context is synchronized to the context of the SGSN side.
  • the context of the terminal UE on the SGSN side is specifically ABC, and the unified mobility management network element performs context synchronization, and converts ABC into MME side.
  • the process of synchronizing the context of the MME side in the unified mobility management network element to the context of the SGSN side is completed.
  • the performing the internal context synchronization process may further trigger the implementation of the service request Service Request initiated by the UE by the receiving terminal, that is, the terminal UE needs to perform services on the MME side, in the idle state thereof.
  • the service request service request is sent to the network side, and the unified mobility management network element triggers a process of synchronizing the MME side with the SGSN side according to the service request.
  • Step 404 The unified mobility management network element sends an update request to the serving gateway S-GW, where the request carries the control plane address of the MME in the unified mobility management network element. This update request is used to implement bearer synchronization.
  • the update request that is involved in the step may be implemented by using an Update Bearer Request that carries the MME Address and TEID, EPS Bearer ID, and the Bearer Synch.
  • the synchronization indication Bearer synch indicates the update bearer request.
  • the Update Bearer Request is used to indicate that the bearer is synchronized.
  • the process may actively trigger the MME or the SGSN to send an Update Request Update Bearer Request message to the serving network management S-GW, so the Bearer Synch indication may not be carried. That is, the Bearer Synch indication in this embodiment is a trigger indication, which is used to indicate that the finger is carried.
  • the message shown is used to trigger the implementation of bearer synchronization.
  • the update request can also be implemented using a new message, for example, hosting a synchronization request
  • Bearer Synch Requet which carries EPS Bearer Identity (Bearer Identity), MME Address and TEID.
  • Step 405 The serving gateway S-GW replies with an update response.
  • the update response involved in the step is corresponding to step 404, and may be implemented by using an update bearer response Update Bearer Response or a new message name Bearer Synch Response Bearer Identity (EPS Bearer Identity).
  • EPS Bearer Identity Bearer Synch Response Bearer Identity
  • the case where the terminal UE accesses the SGSN for the first time is taken as an example.
  • a person skilled in the art may know that when the terminal UE accesses the MME for the first time, the processing manner is similar, and details are not described herein.
  • FIG. 9 is a schematic flowchart of context synchronization of a unified mobility management network element according to Embodiment 4 of the present invention, due to the unified mobility.
  • the management network element has all the functions of the SGSN and the MME, and the coordination between the SGSN and the MME can be completed internally, so the impact of the ISR on the S-GW is shielded. That is, after the ISR is enabled in the MME/SGSN, only one control plane channel is established with the serving gateway S-GW to shield the impact of the ISR on the S-GW. In this way, the serving gateway S-GW does not need to perceive the ISR function, and the activation of the ISR does not require the participation of the S-GW.
  • Step 501 The serving gateway S-GW selects a corresponding control plane address in the unified mobility management network element according to the pre-stored access type RAT Type Send a synchronization request;
  • the description of the embodiment is based on the example that the terminal UE resides on the SGSN side, and the corresponding control plane address is the SGSN TEID.
  • the synchronization request involved in the step may be implemented by using a Creator Dedicated Beare Request (Certrate Dedicated Beare Request) carrying the following cells: International Mobile User International mobile subscriber identity (IMSI), Protocol Transport ID (PTI) bearer QoS, Uplink Traffic Flow Template (UL TFT), S1-TEID (SI interface tunnel end point identifier Endpoint Identifier), Linked EPS Bearer Id (identical, LBI for short), DL TFT (for PMIP-based S5/S8) (downstream transport flow template Downlink Traffic) Flow Template (for Proxy Mobile IP-based S5/S8 based on S5/S8 interface using proxy mobile IP protocol));
  • the update bearer request is implemented by using an update bearer request, and the update bearer request carries the following information: PTI, EPS Bearer Identity, Bearer QoS, UL TFT, DL TFT (for PMIP-based S5/S8));
  • the delete bearer request is implemented by deleting the bearer request, and the delete bearer request carries the under-the-cell cell: PTI, EPS Bearer Identity.
  • Step 502 The unified mobility management network element replies to the synchronization response.
  • the terminal UE since the terminal UE resides on the SGSN side, when the unified mobility management network element responds to the synchronization response, the SGSN function entity in the unified mobility management network element actually responds.
  • the synchronization response may be implemented in a specific implementation, and may correspond to the specialization involved in step 501.
  • the bearer with the EPS Bearer Identity, RNC-TEID creates a response with the Creed Dedicated Beare Response and carries the EPS Bearer Identity.
  • Step 503 The unified mobility management network element performs internal context synchronization.
  • the internal context synchronization involved in the step 503 is performed, that is, the context of the MME side in the unified mobility management network element is synchronized to the context of the SGSN side, for example, in the SGSN side of the unified mobility management network element.
  • the context of the terminal UE is specifically ABC, and the unified mobility management network element performs context synchronization, and after converting the ABC into the context information DEF of the MME side, completes the context synchronization of the MME side in the unified mobility management network element to the SGSN.
  • the process of the side context is performed, that is, the context of the MME side in the unified mobility management network element is synchronized to the context of the SGSN side, for example, in the SGSN side of the unified mobility management network element.
  • the context of the terminal UE is specifically ABC
  • the unified mobility management network element performs context synchronization, and after converting the ABC into the
  • Step 504 The unified mobility management network element sends an update request to the serving gateway S-GW, where the update request is used to indicate that the bearer synchronization is performed.
  • the update request is specifically sent by the MME entity in the unified mobility management network element, and can be implemented as follows:
  • Update bearer request Update Bearer Request the update bearer request specific bearer cell is as follows: MME Address and TEID for control plane, EPS Bearer ID, Bearer Synch; wherein MME Address and TEID give the control plane address of the MME, Bearer synch is used to indicate that bearer synchronization is performed.
  • the Delete Bearer Request is deleted.
  • the Delete Bearer Request carries the MME Address and TEID for control plane.
  • the Delete Bearer Request is used to indicate that the bearer is deleted to release the resources of the serving gateway.
  • the update request can also be implemented by using a new message, for example, a Bearer Synch Requet bearer synchronization request is added, and the request carries a cell such as EPS Bearer Identity, MME Address and TEID for control plane.
  • a Bearer Synch Requet bearer synchronization request is added, and the request carries a cell such as EPS Bearer Identity, MME Address and TEID for control plane.
  • Step 505 The service gateway replies with an update response.
  • the update response involved in the step corresponds to step 504, and may use a reply update response bearer Update Bearer Response or a J load response Delete Bearer Response or a new message name bearer synchronization response Bearer Synch Response (EPS Bearer Identity) to realise.
  • EPS Bearer Identity a reply update response bearer Update Bearer Response or a J load response Delete Bearer Response or a new message name bearer synchronization response Bearer Synch Response (EPS Bearer Identity) to realise.
  • the case where the terminal UE resides in the SGSN is taken as an example. The same is true for those skilled in the art.
  • the terminal UE resides on the MME side, the processing manner is similar, and details are not described herein.
  • FIG. 11 is a schematic flowchart of the context synchronization of the unified mobility management network element according to Embodiment 5 of the present invention, because the unified mobility
  • the management network element has all the functions of the SGSN and the MME, and the coordination between the SGSN and the MME can be completed internally, so the impact of the ISR on the S-GW is shielded. That is, after the ISR is enabled in the MME/SGSN, only one control plane channel is established with the S-GW to shield the impact of the ISR on the S-GW. In this way, the S-GW does not need to perceive the ISR function, and the activation of the ISR does not require the participation of the S-GW.
  • a schematic structural diagram of a mobility management processing system includes: a unified mobility management network element and a terminal device, where the unified mobility management network element and radio access
  • the network GERAN is connected to the universal mobile communication system terrestrial radio access network UTRAN to provide communication services for the terminal;
  • the first mobility management network element is configured to obtain current first location area information and current second location area information of the terminal device, where the current second location area information is obtained by mapping the current first location area information, and is used according to the current a location area information and a current second location area information, and sending, to the terminal device, a message carrying an activation indication identifier, where the activation indication identifier is used to indicate an activated ISR in the idle mode of the terminal device;
  • the terminal device is configured to access the core network by using the first access type, and is configured to obtain an activation indication identifier sent by the unified mobility management network element, and activate the ISR according to the activation indication identifier.
  • the message sent by the unified mobility management network element to the terminal device further carries the temporary mobile user identity identifier corresponding to the first access type, the first location area information, and the temporary mobile user corresponding to the second access type. Identity, second location area information.
  • the message may further include a unified mobility management network element indication information, where the unified mobility management network element indication information is used to notify the terminal device that the message is unified by the mobility management network element. send.
  • the terminal device is further configured to: if the bearer changes after the ISR is activated, maintain the ISR according to the unified mobility management NE indication information.
  • the terminal device activates the ISR association in the scenario of the unified mobility management network element, then when the terminal device senses that the bearer changes (for example, adding/repairing/deleting the bearer), the terminal The device confirms registration in the unified mobility management network element according to the unified mobility management network element indication information, thereby selecting to continue to maintain the ISR association without deactivating the ISR association.
  • FIG. 13 another schematic structural diagram of a mobility management processing system according to Embodiment 6 of the present invention further includes: a service gateway,
  • a service gateway configured to obtain a message that carries the first control plane address, the second control plane address, the access type, the unity indication, and the activation indicator identifier sent by the unified mobility management network element; the activation indication identifier is used to notify the service gateway Activating the ISR; the unity indication is used to notify the service gateway message to be sent by the unified mobility management network element; and is further configured to activate the ISR according to the activation indication identifier, and according to the access type, from the first control plane address and the second control plane address The corresponding control plane address is selected, and the downlink message is sent to the selected control plane address; of course, the unity indication may also be implicit.
  • the service gateway may obtain the first control plane address and the second control plane address information at the same time. To perceive the sending of the message is a unified mobility management network element.
  • the unified mobility management network element is further configured to send, to the serving gateway, a message that carries the first control plane address, the second control plane address, the access type, the unity indication, and the activation indication identifier; and is further configured to receive the service.
  • the downstream message sent by the gateway is further configured to send, to the serving gateway, a message that carries the first control plane address, the second control plane address, the access type, the unity indication, and the activation indication identifier; and is further configured to receive the service.
  • the unified mobility management network element is further configured to perform context synchronization of the first access type and the second access type, and notify the serving gateway to perform bearer update synchronization; correspondingly, the service gateway is configured to perform A notification sent by the mobility management network element performs bearer update synchronization.
  • the mobility management processing system provided by the embodiment of the present invention can directly activate the terminal device ISR association, and can optimize the process of notifying the service gateway in the process of activating the ISR, and further After the bearer change is implemented, the synchronization of the unified mobility management network element and the operation of updating the service gateway are performed in time, thereby further reducing the probability of location update.
  • FIG. 14 is a schematic structural diagram of a unified mobility management network element according to Embodiment 7 of the present invention.
  • the unified mobility management network element is connected to a radio access network GERAN and a universal mobile communication system terrestrial radio access network UTRAN. , providing communication services for terminal devices; network elements include:
  • An acquiring module configured to acquire current current location area information of the terminal device and current second location area information, where the current second location area information is obtained by mapping the current first location area information;
  • the first sending module is configured to send, according to the current first location area information and the current second location area information acquired by the acquiring module, a message carrying the activation indication identifier to the terminal device, where the activation indication identifier is used to indicate the idle mode of the terminal device Activate the ISR underneath.
  • the first sending module sends a message to the terminal device, and further carries the temporary mobile user identity identifier corresponding to the first access type, the first location area information, and the temporary mobile user identity identifier corresponding to the second access type, Second location area information.
  • the message may also carry the unified mobility management network element indication information, which is used to notify the terminal device that the message is sent by the unified mobility management network element, so that the terminal device activates the ISR according to the activation indication identifier, and if the bearer occurs, Change, according to the unit mobility management network element indication information, maintain the ISR.
  • the terminal device senses that the bearer has changed (for example, adding/removing/deleting the bearer), the ISR association is actively deactivated.
  • the obtaining module specifically includes:
  • a receiving unit configured to receive current first location area information of the terminal device
  • the mapping unit is configured to obtain current second location area information corresponding to the current first location area information according to the preset mapping relationship according to the current first location area information received by the receiving unit.
  • the network element further includes: a second sending module, a receiving module, where
  • a second sending module configured to send, to the serving gateway, a message that carries the first control plane address, the second control plane address, the access type, the unity indication, and the activation indication identifier;
  • the receiving module is configured to receive a downlink message sent by the serving gateway.
  • the network element further includes:
  • a synchronization module configured to perform context synchronization of the first access type and the second access type
  • a notification module configured to notify the serving gateway to perform bearer update synchronization
  • the unified mobility management network element provided by the embodiment of the present invention can directly activate the terminal device ISR association, and can optimize the process of informing the service gateway in the process of activating the ISR, and can also implement the bearer change and timely
  • the synchronization of the unified mobility management network element and the operation of updating the service gateway further reduce the probability of location update.
  • FIG. 15 is a schematic structural diagram of an access network element according to Embodiment 7 of the present invention, where the access network element includes:
  • An obtaining module configured to acquire current current location area information of the terminal device
  • mapping module configured to acquire, according to a preset mapping relationship, current second location area information corresponding to the current first location area information acquired by the acquiring module
  • a sending module configured to send the current first location area information obtained by the obtaining module and the current second location area information obtained by mapping the mapping module.
  • the obtaining module specifically includes:
  • a receiving unit configured to receive a registration request sent by the terminal device; the registration request carries current first location area information of the terminal device;
  • an obtaining unit configured to obtain current first location area information of the terminal device carried in the registration request according to the registration request received by the receiving unit.
  • the above registration request is specifically:
  • Attach Request carries the current first location area information of the terminal device
  • Location update request RAU Request location update request RAU Request carrying terminal The current first location area information.
  • the access network element After obtaining the current first location area information (RAI or TAI) of the terminal device, the access network element according to the embodiment of the present invention obtains the current second location area information (TAI or RAI), correspondingly, the obtained first location area information and the second location area information are reported to the unified mobility management network element, so that the unified mobility management network element can directly activate the terminal device ISR association, and the mapping
  • the configuration of the relationship is limited with respect to a single access network element, and the configuration is limited, and does not cause a burden, and does not affect the core network.
  • FIG. 16 is a schematic structural diagram of a service gateway according to Embodiment 8 of the present invention, where the service gateway includes:
  • a receiving module configured to receive a message that is sent by the unified mobility management network element and carries a first control plane address, a second control plane address, and an access type
  • a sending module configured to select a corresponding control plane address from the first control plane address and the second control plane address according to the access type received by the receiving module, and send a downlink message to the selected control plane address.
  • the service gateway further includes:
  • the synchronization module is configured to perform bearer update synchronization according to the notification sent by the unified mobility management network element.
  • the sending module includes:
  • a requesting unit configured to select, according to an access type received by the receiving module, a corresponding control plane address from the first control plane address and the second control plane address, and send an update request to the selected control plane address.
  • the receiving module is further configured to receive an activation indication identifier sent by the unified mobility management network element, where the activation indication identifier is used to notify the service gateway to activate the ISR; and the service gateway further includes: an activation module, configured to receive, according to the receiving module The received activation indication identifier activates the ISR;
  • the receiving module is further configured to receive a unified indication sent by the unified mobility management network element, where the unified indication is used to notify the serving gateway that the message received by the receiving module is sent by the unified mobility management network element.
  • the service gateway provided by the embodiment of the present invention obtains the information such as the control plane address and the access type reported by the unified mobility management network element, and selects an appropriate control plane address according to the access type, and then sends a corresponding message to trigger. Paging terminal.
  • FIG. 17 a schematic diagram of a reference network architecture according to an embodiment of the present invention is provided.
  • the technical solution provided by the embodiment of the present invention by using the unified mobility management network element, directly activates the ISR for the terminal UE, and further, The unified mobility management network element has the advantages of operation and maintenance and cost. It can also reduce the signaling of each interface, speed up the mobility management process such as handover, simplify the implementation of ISR, and reduce the S3/Gn in the original architecture. The signaling load of the interface.
  • the unified mobility management network element internalizes additional interactions required by the SGSN and the MME for the ISR, wherein the interactions include establishing an ISR association (storing each other's address), carrying a context synchronization action, and because of the unified mobility management
  • the network element has the capability to perform internal bearer context synchronization, without the indication of the terminal UE, and therefore may not depend on the indication of the terminal UE or limit the use of the TMSI.
  • the impact of the ISR on the serving gateway S-GW can also be masked.
  • Some of the steps in the embodiment of the present invention may be implemented by using software, and the corresponding software program may be stored in a readable storage medium, such as an optical disk or a hard disk.

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Description

移动性管理处理方法、 系统和设备 本申请要求于 2008 年 08 月 05 日提交中国专利局、 申请号为 200810129669.5、发明名称为"移动性管理处理方法、 系统和设备"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
本发明涉及通信领域， 特别涉及一种移动性管理处理方法、 系统和设备。 背景技术
随着无线通信技术的发展， 参见图 1 , 为现有技术提供的一种无线演进 网络架构示意图， 其中， 当前无线演进网络的核心网主要包含移动管理实体 ( Mobility Management Entity , 以下简称： ΜΜΕ )、 月良务网关 （Serving Gateway,以下简称： S-GW)、分组数据网网关 P-GW(PDN Gateway, Packet Data Network Gateway , 以下简称： P-GW)三个逻辑功能体， 其中， MME是移动 管理实体负责非接入层 NAS ( Non- Access-Stratum, 以下简称： NAS )信令和 NAS信令加密以及漫游、跟踪等功能， 分配用户临时身份标识、安全功能等， 它对应于当前通用移动通信系统 UMTS( Universal Mobile Telecommunications System, 以下简称： UMTS )内部服务 GPRS支持节点（ Serving GPRS Support Node, 以下简称： SGSN )的控制平面部分， S-GW负责本地的移动性锚点和 第三代伙伴计划 （ 3rd Generation Partnership Project, 以下简称： 3GPP ) 系统 内部的移动性锚点以及合法监听相关信息； P-GW 负责策略执行和计费以及 合法监听相关功能。
发明人在实现本发明时发现， 空闲模式下的节约信令或者限制信令（Idle mode Signalling Reduction, 以下简称： ISR )要求终端 UE同时注册在 2G/3G 系统和系统架构演进（ System Architechure Evolution, 以下简称： SAE ) 系统 中， 即在 SGSN、 MME、 S-GW以及终端 UE四个设备中维护一个一致的状 态指示， 即终端 UE是否启动了 ISR功能， 并且对几乎所有的信令流程都产 生了影响， 方案实施相当复杂。
另夕卜， 由于 SGSN和 MME是独立的功能实体， 独立的 SGSN和 MME 支持 ISR需要 MME和 SGSN之间的承载同步。 所谓承载同步， 即当终端 UE 在一种无线接入类型 （Radio Access Type, 以下简称： RAT ) 下面新增 /修改 / 删除了承载后，不需要实时将变化同步到另外不同的 RAT, 而是需要等待 UE 重选不同 RAT的小区接入时候， 再发起承载上下文的同步， 上述同步方案， 和安全机制牵涉到一起， 引发了很多复杂的问题。 发明内容
为了使简化 ISR功能实现， 优化网络性能， 减少网络设备的操作维护成 本， 本发明实施例提供了一种移动性管理处理方法、 系统和设备， 所述技术 方案如下：
一种移动性管理处理方法， 终端采用第一接入类型接入核心网， 所述方 法包括：
合一移动性管理网元获取所述终端当前第一位置区信息和当前第二位置 区信息， 所述当前第二位置区信息为对所述当前第一位置区信息映射得到； 根据所述当前第一位置区信息和所述当前第二位置区信息， 向所述终端 发送携带激活指示标识的消息， 所述激活指示标识用于指示所述终端空闲模 式下激活 ISR。
一种移动性管理处理系统， 包括： 合一移动性管理网元和终端设备， 其 中， 所述合一性移动管理网元与无线电接入网络 GERAN和通用移动通信系 统陆地无线接入网 UTRAN相连， 为所述终端设备提供通信服务；
所述合一移动性管理网元用于获取所述终端设备的当前第一位置区信息 和当前第二位置区信息， 所述当前第二位置区信息为对所述当前第一位置区 信息映射得到； 并用于根据所述当前第一位置区信息和所述当前第二位置区 信息， 向所述终端设备发送携带激活指示标识的消息， 所述激活指示标识用 于指示所述终端设备空闲模式下激活 ISR;
所述终端设备用于通过第一接入类型接入核心网， 并用于获取所述合一 移动性管理网元发送的激活指示标识， 根据所述激活指示标识激活 ISR。
一种合一移动性管理网元， 所述合一性移动管理网元与无线电接入网络 GERAN和通用移动通信系统陆地无线接入网 UTRAN相连，为终端设备提供 通信服务； 所述网元包括：
获取模块， 用于获取终端设备的当前第一位置区信息和当前第二位置区 信息， 所述当前第二位置区信息具体为通过对所述当前第一位置区信息映射 获取得到；
第一发送模块， 用于根据所述获取模块获取的当前第一位置区信息和所 述当前第二位置区信息， 向所述终端设备发送携带激活指示标识的消息， 所 述激活指示标识用于指示所述终端设备空闲模式下激活 ISR。
一种接入网元， 包括：
获取模块， 用于获取终端设备的当前第一位置区信息；
映射模块， 用于根据预设的映射关系， 获取所述获取模块获取的当前第 一位置区信息对应的当前第二位置区信息；
发送模块， 用于发送所述获取模块获取得到的当前第一位置区信息和所 述映射模块映射得到的当前第二位置区信息。
一种服务网关， 包括：
接收模块， 用于接收合一移动性管理网元发送的携带第一控制面地址、 第二控制面地址、 接入类型的消息；
发送模块， 用于根据所述接收模块接收的接入类型， 从所述第一控制面 地址和第二控制面地址中选择相应的控制面地址， 向选择的控制面地址发送 消息。
本发明实施例提供的技术方案的有益效果是： 通过本发明实施例提供的合一移动性管理网元， 能够直接激活终端设备
ISR关联， 简化 ISR功能实现， 优化网络性能， 减少网络设备的操作维护成 本。 附图说明
图 1是现有技术提供的一种无线演进网络架构示意图；
图 2是本发明实施例 1提供的一种移动性管理处理方法的流程图； 图 3是本发明实施例 1提供的激活 ISR关联的流程示意图；
图 4是本发明实施例 2提供的一种移动性管理处理方法的流程图； 图 5是本发明实施例 2提供的激活 ISR关联的流程示意图；
图 6是本发明实施例 3提供的一种移动性管理处理方法的流程图； 图 Ί是本发明实施例 3提供的激活 ISR流程中通知服务网关的流程示意 图；
图 8是本发明实施例 4提供的一种移动性管理处理方法的流程图； 图 9是本发明实施例 4提供的合一移动性管理网元上下文同步的流程示 意图；
图 10是本发明实施例 5提供的一种移动性管理处理方法的流程图； 图 11是本发明实施例 5提供的合一移动性管理网元上下文同步的流程示 意图；
图 12是本发明实施例 6提供的一种移动性管理处理系统结构示意图； 图 13是本发明实施例 6提供的移动性管理处理系统另一结构示意图； 图 14是本发明实施例 7提供的一种合一移动性管理网元的结构示意图； 图 15是本发明实施例 7提供的一种接入网元的结构示意图；
图 16是本发明实施例 8提供的一种服务网关的结构示意图；
图 17是本发明实施例提供的参考网络架构示意图。 具体实施方式
为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发 明实施方式作进一步地详细描述。
本发明实施例提供了合一移动性管理网元， 该合一移动性管理网元集成 了传统的 MME和 SGSN的功能，通过将 MME/SGSN的功能合一化， 除了操 作维护和成本优势、 产品架构设计上的考虑外， 进一步地， 还可以提供减少 各个接口的信令， 加快切换等移动性管理流程的速度， 简化 ISR的实现等功 能， 显而易见， 本发明实施例提供的合一移动性管理网元由于合建了 MME/SGSN , 减少 S3/Gn接口的信令负荷。
通过本发明实施例提供的合一移动性管理网元将 ISR所需要网元间的信 令交互内部化， 这些信令交互包括建立 ISR关联（互相保存对方地址）、 承载 上下文同步动作， 而且因为合一的 SGSN/MME有能力进行内部的承载上下 文同步，无需终端 UE的指示，所以也可以不依赖终端 UE的指示或者限制临 时移动用户身份标识（ Temporary Mobile Subscriber Identity ,以下简称： TMSI ) 的使用。进一步地， 该合一移动性管理网元还可以屏蔽 ISR对 S-GW的影响， 即该合一移动性管理网元即使启用了 ISR, 也可以对 S-GW表现为和未启用 ISR一样。
下面以多个实施例的形式， 充分对本发明实施例提供的合一移动性管理 网元所支持的功能进行说明， 利用该集成了 SGSN/MME 功能的移动性管理 网元的特点， 简化了 ISR功能实现， 优化了网络性能。
实施例 1
参见图 2, 为本发明实施例 1提供的一种移动性管理处理方法的流程图， 以终端 UE首次接入 SGSN的情况为例进行说明， 该方法内容如下：
步骤 101 : 终端 UE发送注册请求。
其中，本实施例以终端 UE通过 2G/3G接入网接入核心网为例进行说明。 其中， 本步骤中的注册请求具体实现时， 可以通过采用附着请求（Attach Request )或者位置更新（ Routeing Area Update以下简称： RAU )请求（ Request ) 的方式实现。
步骤 102: 2G/3G接入网中的无线网络控制器（ Radio Network Controller, 以下简称： RNC ) 收到终端 UE的注册请求后， 获知终端 UE当前所在的路 由区标识（Routeing Area Identity, 以下简称： RAI ), 其后进一步获得终端 UE的跟踪区标识 TAI,获取方式可以是通过预先配置网络拓朴（即 RAI和跟 踪区标识（ Tracking Area Identity , 以下简称： TAI )的映射关系）推导出终端 所在的 TAI后。 RNC获得 UE的 TAI和 RAI后， 向合一移动性管理网元发送 注册请求， 该注册请求中携带终端 UE的 RAI和 TAI。
其中，本步骤中的注册请求在具体实现时，可以通过采用携带终端的 RAI 和 TAI的附着请求 Attach Request或者位置更新请求 RAU Request的方式实 现。
步骤 103: 合一移动性管理网元收到来自 RNC的注册请求后， 根据该注 册请求中携带的终端 UE的 RAI和 TAI, 回复注册响应， 其中该注册响应中 携带 ISR指示标识、以及为终端 UE分配的分组临时移动用户身份标识（ Packet Temporary Mobile Subscriber Identity , 以下简称： P-TMSI )、 全局唯一临时标 识 （Globally Unique Temporary Identity, 以下简称： GUTI )、 RAI、 TAI List。 该注册响应中还可以携带合一移动性管理网元指示信息， 例如： "Combined Indication" 指示信息。 该合一移动性管理网元指示信息用于通告 UE该注册 响应由合一移动性管理网元发送， 从而使 UE感知当前注册在一个合一移动 性管理网元。 当然该合一移动性管理网元指示信息也可以是隐式的， 例如， UE可通过同时获得 P-TMSL GUTI来感知当前注册在一个合一移动性管理 网元。
其中， 该 ISR指示标识用于指示 UE激活 ISR关联。 在本发明方案中， 如果 UE在合一移动性管理网元的场景下激活 ISR关联， 那么后续当 UE感 知到承载发生改变（例如， 新增 /修改 /删除了承载）， UE根据合一移动性管理 网元指示信息， 选择继续维持 ISR关联而不去激活 ISR关联。
其中， 本步骤中的注册响应在具体实现时， 可以采用携带 ISR指示标识、 以及为终端 UE分配的 P-TMSI、 GUTI、 RAI、 TAI List的附着接受 Attach Accept 或者位置更新接受 RAU Accept的方式实现。
本领域技术人员可以获知， 同理， 当终端通过 E-UTRAN接入核心网时， E-UTRAN的基站 eNodeB同样可以根据获取的终端 UE的 TAI推导出 RAI 后， 将终端 UE的 TAI和 RAI—并上 4艮给核心网中的合一移动性管理网元， 然后该合一移动性管理网元根据获取的终端 UE的 TAI和 RAI,回复携带 ISR 指示标识、 以及为终端 UE分配的 P-TMSI、 GUTL RAL TAI List的响应消 息。
本发明实施例提供的方法， 在网络拓朴只影响接入网的配置， 而且相对 单个接入网元（RNC/eNodeB ) 而言， 配置该网络拓朴数据的数量不会太大。
本发明实施例提供的方法， 能够在终端在进行网络注册时， 参见图 3 , 为本发明实施例 1提供的激活 ISR关联的流程示意图， 利用本发明实施例提 供的合一移动性管理网元， 可以通过用户的 attach或者 Inter RAU/TAU过程 直接激活 ISR,并为终端同时分配 P-TMSI和 GUTI,并为用户指定对应的 RAI 和 TAI List„
实施例 2
参见图 4, 本发明实施例 2提供的一种移动性管理处理方法的流程图， 以终端 UE首次接入 SGSN的情况为例进行说明， 与实施例 1的区别在于， RAI和 TAI的映射关系的网络拓朴的配置在合一移动性管理网元侧完成， 该 方法内容如下：
步骤 201： 终端 UE发送注册请求；
其中， 本实施例仍以终端 UE通过 2G/3G接入网接入核心网为例进行说 明。
其中， 本步骤中的注册请求具体实现时， 可以通过采用附着请求 Attach Request或者位置更新请求 RAU Request的方式实现。
步骤 202: 2G/3G接入网中的 RNC收到终端的注册请求后， 获知终端当 前所在的 RAI, 向合一移动性管理网元发送注册请求， 该注册请求中携带终 端的 RAII。
其中， 本步骤中的注册请求在具体实现时， 可以采用携带终端的 RAI和 TAI的附着请求 Attach Request或者位置更新请求 RAU Request的方式实现。
步骤 203: 合一移动性管理网元收到来自 RNC 的注册请求， 获取终端 UE的 RAI, 根据获取的终端 UE的 RAI以及自身预先配置的网络拓朴 (即 TAI和 RAI的映射关系）， 推导出于该 RAI对应的 TAI。
步骤 204: 合一移动性管理网元根据获取的终端 UE的 RAI和 TAI, 回复 注册响应， 其中该注册响应中携带 ISR指示标识、 以及为终端 UE 分配的 P-TMSL GUTK RAK TAI List。 该注册响应中还可以携带合一移动性管理 网元指示信息， 例如： "Combined Indication" 指示信息。 该合一移动性管理 网元指示信息用于通告 UE该注册响应由合一移动性管理网元发送， 从而让 UE感知当前注册在一个合一移动性管理网元。当然该合一移动性管理网元指 示信息也可以是隐式的， 例如， UE可通过同时获得 P-TMSI、 GUTI来感知 当前注册在一个合一移动性管理网元。
其中， 该 ISR指示标识用于指示 UE激活 ISR关联。 在本发明方案中， 如果 UE在合一移动性管理网元的场景下激活 ISR关联， 那么后续当 UE感 知到承载发生改变 （例如， 新增 /修 1/删除了承载） 时， UE根据该合一移动 性管理网元指示信息确认 UE注册在合一移动性管理网元， 从而选择继续维 持 ISR关联而不去激活 ISR关联。
其中， 本步骤中的注册响应在具体实现时， 可以采用携带 ISR指示标识、 以及为终端 UE分配的 P-TMSI、 GUTI、 RAI、 TAI List的附着接受 Attach Accept 或者位置更新接受 RAU Accept的方式实现。
本领域技术人员可以获知， 同理， 当终端通过 E-UTRAN接入核心网时， 核心网中的合一移动性管理网元同样可以通过 E-UTRAN的基站 eNodeB上报 的 TAI推导出 RAI。
本发明实施例提供的方法， 不需要对目前的接入网进行改动， 只需要在 合一移动管理网元上进行网络拓朴的配置工作。
本发明实施例提供的方法， 参见图 5, 为本发明实施例 2提供的激活 ISR 关联的流程示意图， 利用本发明实施例提供的合一移动性管理网元， 可以通 过用户的 attach或者 Inter RAU/TAU过程直接激活 ISR, 并为终端同时分配 P-TMSI和 GUTI , 并为用户指定对应的 RAI和 TAI List。
上述实施例 1和 2, 论述了移动性管理处理中在激活 ISR流程的过程中， 如何通过本发明实施例提供的合一移动性管理网元实现通知终端 UE 激活
ISR的方法， 下面实施例 3 ,将论述在移动性管理处理中在激活 ISR流程的过 程中， 如何通过本发明实施例提供的合一移动性管理网元实现通知服务网关 激活 ISR的方法， 详见下文：
实施例 3
参见图 6, 为本发明实施例 3提供的一种移动性管理处理方法的流程图 , 该方法论述了激活 ISR流程过程中， 如何实现通知服务网关 S-GW, 以终端 UE首次接入 SGSN的情况为例进行说明， 该方法内容如下：
步骤 301 : 合一移动性管理网元向服务网关 S-GW发送请求消息， 该消 息中携带该合一移动管理网元中的第一控制面地址、 第二控制面地址、 接入 类型以及 ISR指示、 合一标识。
其中， 本实施例提供的激活 ISR流程通知服务网关的方法中， 由于本发 明实施例以终端 UE首次接入 SGSN的情况为例进行的说明， 因此上述第一 控制面地址具体为该 SGSN 的控制面地址即 SGSN 隧道终点标识（Tunnel Endpoint Identifier, 以下简称： TEID ); 相应地， 接入类型 RAT TYPE即设 置为通过 2G/3G接入网接入； 第二控制面地址即为 MME 的控制面地址即 MME TEID; ISR指示用于指示服务网关 S-GW激活 ISR; 合一标识， 用于 通告服务网关 S-GW, 发送该请求消息的网络实体具体为一个将 SGSN功能 和 MME功能合一的合一移动性管理网元。 当然该合一标识也可以是隐式的， 例如， S-GW可通过同时获得第一控制面地址、 第二控制面地址信息来感知 发送请求消息的网络实体具体是一个将 SGSN功能和 MME功能合一的合一 移动性管理网元。
其中， 上述接入类型 RAT Type在具体实现时， 可以通过设置 " 1" 代表 第一接入类型（例如 SGSN接入）， 设置 "0"代表第二接入类型（例如 MME 接入）， 本实施例不限制该接入类型设置的具体实现形式和方式，
其中， 该步骤中涉及的请求消息在具体实现时， 可以通过携带有 MME TEID for control plane、 SGSN TEID for control plane, address , RAT Type, ISR 和 Combined Indication信元的 J建专有f 载请求 Creat Default Bearer Request 实现， 利用该创建专有承载请求不仅将 SGSN的控制面地址 SGSN TEID for control plane传递给服务网关 S-GW,还将 MME的控制面地址 MME TEID for control plane传递给服务网关 S-GW。 ISR指示 S-GW激活 ISR, Combined Indication指示 S-GW, SGSN和 MME是一个合一设备。 后续 S-GW根据保 存的 RAT Type, 选择合适的控制面地址。 本领域技术人员可以获知， 该创建 专有承载请求还会携带其他信元如， IMSI, 缺省承载服务质量 Default Bearer QoS(Quality of Service ) , 等等。
其中， 该步骤中涉及的请求消息在具体实现时， 还可以通过携带 MME TEID for control plane、 SGSN TEID for control plane, address , RAT Type, ISR 和 Combined Indication信元的创建承载请求 Creat Bearer Requst来实现，本领 域技术人员可以获知， 该创建承载请求还会携带其他信元如， IMSI, bearer contexts等等。
其中，该步骤中涉及的请求消息在具体实现时，可以通过携带 MME TEID for control plane、 SGSN TEID for control plane, address、 RAT Type、 ISR和 Combined Indication信元的更新 载请求 Update Bearer Request来实现，本领 域技术人员可以获知， 该更新承载请求还会携带其他信元如， 协商的服务质 量（ QoS Negotiated ), 服务网络（ serving network ), 等等。
步骤 302: 服务网关 S-GW向合一移动性管理网元发送回复消息。
其中， 服务网关 S-GW接受请求消息后， 向合一移动性管理网元发送回 复消息， 该步骤中该回复消息具体实现时可以相应于步骤 301 中的创建专有 载请求 Creat Default Bearer Request/创建 载请求 Creat Bearer Requst/更新 承载请求 Update Bearer Request,相应地，通过创建专有承载响应 Creat Default Bearer ResponseA&J建!载响应 Creat Bearer Response/更新 载响应 Update Bearer Response来实现。
步骤 303: 服务网关收到来自网络侧的下行消息，根据获取的终端 UE的 接入类型以及相应的控制面地址， 发送消息触发寻呼处于空闲态的终端 UE。
其中， 该来自网络侧的下行消息具体为下行的数据或者信令。
其中， 由于服务网关 S-GW接收到合一移动性管理网元的请求消息后， 根据该请求消息中携带的信元（合一移动管理网元中的第一控制面地址、 第 二控制面地址、 接入类型以及 ISR指示、 合一标识）， 获取到该终端 UE的接 入类型后， 选择与该接入类型相应的控制面地址。 例如终端的接入类型 RAT Type为 SGSN, 则选择的控制面地址为 SGSN TEID。
综上， 本发明实施例提供了一种移动性管理处理方法， 参见图 7 , 为本 发明实施例 3提供的激活 ISR流程中通知服务网关的流程示意图， 该合一移 动性管理网元通过将 SGSN控制面地址以及 MME控制面地址发送给服务网 关 S-GW, 同时指示此时该设备为合一设备， 后续服务网关 S-GW根据保存 的接入类型 RAT Type, 选择合适的控制面地址， 实现对空闲态的终端 UE的 寻呼。
上述各实施例， 论述了移动性管理处理中在激活 ISR流程的过程中， 如 何通过本发明实施例提供的合一移动性管理网元实现通知终端 UE激活 ISR 以及通知服务网关激活 ISR的方法， 下述各实施例将论述 ISR启动后， 如何 实现合一移动性管理网元的承载上下文同步， 详见下文：
实施例 4
参见图 8, 为本发明实施例 4提供的一种移动性管理处理方法的流程图 , 以终端 UE首次接入 SGSN的情况为例进行说明， 该方法内容如下：
步骤 401 : 合一移动性管理网元向服务网关 S-GW发送同步请求， 该同 步请求中携带接入类型 RAT Type, 第一控制面地址， ISR指示、 合一标识。
其中， 由于本实施例以终端 UE首次接入 SGSN的情况为例， 则该第一 控制面地址具体为 SGSN TEID for control plane, 其中， 该同步请求在具体实 现时， 可以采用如下的方式：
1、 通过携带有接入类型 RAT Type、 SGSN TEID for contrl plane, ISR指 示、 合一标识的创建专有承载请求 Creat Default Bearer Request实现， 本领域 技术人员可以获知该创建专有承载请求 Creat Default Bearer Request还携带其 他信元， 如 IMSI, Selection Mode, 等等。 其中， 接入类型 RAT Type通告了 服务网关终端 UE的接入类型， ISR指示服务网关 S-GW激活 ISR, 合一标识 Combined Indication通知服务网关该同步请求是由合一移动性管理网元发送 的。 后续服务网关 S-GW根据获取的终端 UE的 RAT Type, 选择合适的控 制面地址。
2、通过携带有接入类型 RAT Type, SGSN TEID for control plane 、 ISR 指示、合一标识的创建承载请求 Creat Bearer Requst来实现， 该更新承载请求 Update Bearer Request还携带其他信元 , 如 QoS Negotiated, 等等。
3、通过携带有接入类型 RAT Type, SGSN TEID for control plane 、 ISR 指示、 合一标识的更新承载请求 Update Bearer Request来实现， 该更新承载 请求 Update Bearer Request还携带其他信元， ^口 new MME Address and TEID, QoS Negotiated, 等等。
步骤 402: 服务网关向合一移动性管理网元发送同步响应。
其中， 该同步响应在具体实现时， 可以相应与步骤 401 中涉及的创建专 有 载请求 Creat Default Bearer Request/创建 载请求 Creat Bearer Requst,相 应地, 建专有 7 载响应 Creat Default Bearer Response A&J建!载响应 Creat Bearer Response/更新承载响应 Update Bearer Response。
步骤 403： 合一移动性管理网元执行内部的上下文同步。
其中， 该步骤 403 中涉及到的执行内部的上下文同步， 针对本实施例， 由于终端 UE为首次接入 SGSN,该执行内部的上下文同步即触发将该合一移 动性管理网元中的 MME侧的上下文同步到 SGSN侧的上下文， 例如， 在合 一移动性管理网元中 SGSN侧该终端 UE的上下文具体为 ABC, 该合一移动 性管理网元执行上下文同步， 将 ABC转换成 MME侧的上下文信息 DEF后， 完成合一移动性管理网元中的 MME侧的上下文同步到 SGSN侧的上下文的 过程。
进一步， 该执行内部的上下文同步过程， 还可以为该合一移动性管理网 元根据收到终端 UE发起的服务请求 Service Request触发实现，即终端 UE在 MME侧需要进行业务，在其空闲状态下发送服务请求 Service Request到网络 侧， 合一移动性管理网元根据该服务请求触发 MME侧同 SGSN侧同步上下 文的过程。
步骤 404: 合一移动性管理网元向服务网关 S-GW发送更新请求， 该请 求中携带合一移动性管理网元中 MME的控制面地址。 该更新请求用于实施 承载同步。
其中， 该步骤中涉及的更新请求在具体实现时， 可以采用携带 MME Address and TEID, EPS Bearer ID, 同步指示 Bearer Synch的更新承载请求 Update Bearer Request实现， 其中， 同步指示 Bearer synch指示该更新承载请 求 Update Bearer Request用于指示进行承载同步。 进一步地， 如果由 Service Request触发，由于该流程会主动触发 MME或者 SGSN发送更新请求 Update Bearer Request消息到服务网管 S-GW ,所以可以不用携带 Bearer Synch指示。 即本实施例所述的 Bearer Synch指示是一个触发指示， 用于表示携带了该指 示的消息是用于触发实施承载同步的。
或者， 也可以使用新增的消息实现该更新请求， 例如， 承载同步请求
Bearer Synch Requet,该请求中携带 EPS Bearer Identity (分组演进系统（ EPS ) 承载 （Bearer )标识（Identity ) ), MME Address and TEID。
步骤 405: 服务网关 S-GW回复更新响应。
其中， 该步骤中涉及到的更新响应相应与步骤 404, 可以采用更新承载 响应 Update Bearer Response或者新增的消息名称 Bearer Synch Response承载 同步响应 (EPS Bearer Identity)来实现。
本发明实施例以终端 UE首次接入 SGSN的情况为例进行说明， 本领域 技术人员可以获知同理， 当终端 UE首次接入 MME的情况时， 处理方式类 似， 不再赘述。
综上所述， 本发明实施例提供了一种移动性管理处理方法， 参见图 9, 为本发明实施例 4提供的合一移动性管理网元上下文同步的流程示意图， 由 于该合一移动性管理网元同时具有 SGSN和 MME的所有功能， 可以内部完 成 SGSN和 MME之间的协调， 所以向上屏蔽 ISR对 S-GW的影响。 即合建 的 MME/SGSN启用了 ISR后， 和服务网关 S-GW只建立一条控制面通道， 从而屏蔽 ISR对 S-GW的影响。 这样服务网关 S-GW不需要感知 ISR功能， ISR的启用不需要 S-GW的参与。
实施例 5
参见图 10,为本发明实施例 5提供的一种移动性管理处理方法的流程图， 与实施例 4的区别在于， 以 ISR启动以后， 终端 UE驻留 SGSN的情况为例， 由服务网关 S-GW触发合一移动性管理网元执行上下文同步， 内容如下： 步骤 501 : 服务网关 S-GW按照预先保存的接入类型 RAT Type, 选择合 一移动性管理网元中的相应的控制面地址发送同步请求；
其中， 由于本实施例以终端 UE驻留在 SGSN侧为例进行的说明， 所以 该相应的控制面地址即为 SGSN TEID。 其中， 该步骤中涉及到的同步请求， 在具体实现时可以采用专有承载创 建请求（ Crerate Dedicated Beare Request )实现，该专有承载创建请求（ Crerate Dedicated Beare Request )携带如下信元： 国际移动用户识别码 ( international mobile subscriber identity, 简称： IMSI ) ,协议传输标识 ( Protocol Transaction Id简称： PTI )承载服务质量（ Bearer QoS )，上行运输流模板 ( Uplink Traffic Flow Template简称： UL TFT ), S1-TEID( SI接口隧道终点标识 Tunnel Endpoint Identifier ) ,链接的分组系统演进承载标识（ Linked EPS Bearer Id ( Identity ), 简称： LBI ), DL TFT (for PMIP-based S5/S8)(下行运输流模板 Downlink Traffic Flow Template ( for Proxy Mobile IP-based S5/S8基于 S5/S8接口采用代理的移 动 IP协议 ) );
或者， 采用更新承载请求 Update Bearer Request实现， 该更新承载请求 Update Bearer Request携带^口下信元： PTI, EPS Bearer Identity, Bearer QoS, UL TFT, DL TFT (for PMIP-based S5/S8));
或者， 采用删除承载请求 Delete Bearer Request实现， 该删除承载请求 Delete Bearer Request携带 口下信元： PTI, EPS Bearer Identity。
步骤 502: 合一移动性管理网元回复同步响应。
其中， 该步骤中， 由于终端 UE驻留在 SGSN侧， 所以该合一移动性管 理网元在回复同步响应时， 实际是由该合一移动性管理网元中的 SGSN功能 实体回复。
其中， 该同步响应在具体实现可以， 可以相应于步骤 501 中涉及到的专
Figure imgf000017_0001
建请求 Crerate Dedicated Beare Request/更新 载请求 Update Bearer Request/删除承载请求 Delete Bearer Request, 相应地， 采用携带 EPS Bearer Identity, RNC-TEID的承载创建响应 Crerate Dedicated Beare Response/携带 EPS Bearer Identity的更新承载响应 Update Bearer Response /携带 EPS Bearer Identity的删除 载响应 Delete Bearer Response实现。
步骤 503； 合一移动性管理网元执行内部的上下文同步。 其中， 该步骤 503 中涉及到的执行内部的上下文同步， 即将该合一移动 性管理网元中的 MME侧的上下文同步到 SGSN侧的上下文， 例如， 在合一 移动性管理网元中 SGSN侧该终端 UE的上下文具体为 ABC,该合一移动性管 理网元执行上下文同步， 将 ABC转换成 MME侧的上下文信息 DEF后， 完 成合一移动性管理网元中的 MME侧的上下文同步到 SGSN侧的上下文的过 程。
步骤 504: 合一移动性管理网元向服务网关 S-GW发送更新请求， 该更 新请求用于指示进行承载同步。
其中， 该步骤具体实现时， 该更新请求具体是由该合一移动性管理网元 中的 MME实体发送的， 且可以通过如下方式实现：
更新承载请求 Update Bearer Request, 该更新承载请求 Update Bearer Request具体携带信元如下： MME Address and TEID for control plane, EPS Bearer ID, Bearer Synch; 其中， MME Address and TEID给出了 MME的控制 面地址， Bearer synch用于指示进行承载同步。
或者；
删除 载请求 Delete Bearer Request, 该删除 载请求 Delete Bearer Request中携带 MME Address and TEID for control plane ,该删除承载请求消 息 Delete Bearer Request用于指示进行删除承载， 以译放服务网关的资源。
或者；
也可以使用新增的消息实现该更新请求，例如，新增 Bearer Synch Requet 承载同步请求， 该请求中携带 EPS Bearer Identity, MME Address and TEID for control plane等信元。
步骤 505: 服务网关回复更新响应。
其中， 该步骤中涉及到的更新响应相应与步骤 504, 可以采用回复更新 载响应 Update Bearer Response或者 J除 载响应 Delete Bearer Response 或者新增的消息名称承载同步响应 Bearer Synch Response(EPS Bearer Identity) 来实现。
本发明实施例以终端 UE驻留在 SGSN的情况为例进行说明， 本领域技 术人员可以获知同理， 当终端 UE驻留在 MME侧的情况时， 处理方式类似， 不再赘述。
综上所述， 本发明实施例提供了一种移动性管理处理方法， 参见图 11 , 为本发明实施例 5提供的合一移动性管理网元上下文同步的流程示意图， 由 于该合一移动性管理网元同时具有 SGSN和 MME的所有功能， 可以内部完 成 SGSN和 MME之间的协调， 所以向上屏蔽 ISR对 S-GW的影响。 即合建 的 MME/SGSN启用了 ISR后， 和 S-GW只建立一条控制面通道， 从而屏蔽 ISR对 S-GW的影响。 这样 S-GW不需要感知 ISR功能， ISR的启用不需要 S-GW的参与。
实施例 6
参见图 12,本发明实施例 6提供的一种移动性管理处理系统结构示意图， 所述系统包括： 合一移动性管理网元和终端设备， 其中， 合一性移动管理网 元与无线电接入网络 GERAN和通用移动通信系统陆地无线接入网 UTRAN 相连， 为终端提供通信服务；
合一移动性管理网元， 用于获取终端设备的当前第一位置区信息和当前 第二位置区信息， 当前第二位置区信息为对当前第一位置区信息映射得到； 并用于根据当前第一位置区信息和当前第二位置区信息， 向终端设备发送携 带激活指示标识的消息， 其中， 该激活指示标识用于指示终端设备空闲模式 下的激活 ISR;
终端设备， 用于通过第一接入类型接入核心网， 并用于获取合一移动性 管理网元发送的激活指示标识， 根据激活指示标识激活 ISR。
进一步， 该合一移动性管理网元向终端设备发送的消息中， 还携带第一 接入类型对应的临时移动用户身份标识、 第一位置区信息、 以及第二接入类 型对应的临时移动用户身份标识、 第二位置区信息。 进一步地， 在本实施例中， 该消息中还可以包括合一移动性管理网元指 示信息， 该合一移动性管理网元指示信息用于通告终端设备该消息由合一移 动性管理网元发送。 终端设备还用于在激活 ISR后， 若承载发生变化， 根据 该合一移动性管理网元指示信息， 维持 ISR。
在本发明方案中，如果终端设备在合一移动性管理网元的场景下激活 ISR 关联， 那么后续当终端设备感知到承载发生改变（例如， 新增 /修 1/删除了承 载） 时， 终端设备根据该合一移动性管理网元指示信息确认注册在合一移动 性管理网元， 从而选择继续维持 ISR关联而不去激活 ISR关联。
进一步地， 参见图 13 , 为本发明实施例 6提供的移动性管理处理系统另 一结构示意图， 该系统还包括： 服务网关，
服务网关， 用于获取合一移动性管理网元发送的携带第一控制面地址、 第二控制面地址、 接入类型、 合一指示和激活指示标识的消息； 激活指示标 识用于通知服务网关激活 ISR; 合一指示用于通告服务网关消息由合一移动 性管理网元发送； 还用于根据激活指示标识激活 ISR, 并根据接入类型， 从 第一控制面地址和第二控制面地址中选择相应的控制面地址， 向选择的控制 面地址发送下行消息； 当然该合一指示也可以是隐式的， 例如， 服务网关可 通过同时获得第一控制面地址、 第二控制面地址信息来感知发送消息的是一 个合一移动性管理网元。
相应地， 合一移动性管理网元， 还用于向服务网关发送携带第一控制面 地址、 第二控制面地址、 接入类型、 合一指示和激活指示标识的消息； 还用 于接收服务网关发送的下行消息。
其中， 进一步地， 合一移动性管理网元还用于进行第一接入类型和第二 接入类型的上下文同步， 并通知服务网关执行承载更新同步； 相应地， 服务 网关， 用于根据合一移动性管理网元发送的通知， 执行承载更新同步。
综上所述， 本发明实施例提供的移动性管理处理系统， 能够直接激活终 端设备 ISR关联， 并能够优化激活 ISR过程中通知服务网关的过程， 并且还 能够实现承载改变后， 及时进行合一移动性管理网元的同步， 以及更新服务 网关的操作， 进一步地减少了位置更新的概率。
实施例 7
参见图 14, 为本发明实施例 7提供的一种合一移动性管理网元的结构示 意图， 合一性移动管理网元与无线电接入网络 GERAN和通用移动通信系统 陆地无线接入网 UTRAN相连， 为终端设备提供通信服务； 网元包括：
获取模块， 用于获取终端设备的当前第一位置区信息和当前第二位置区 信息， 当前第二位置区信息为对当前第一位置区信息映射得到；
第一发送模块， 用于根据获取模块获取的当前第一位置区信息和当前第 二位置区信息， 向终端设备发送携带激活指示标识的消息， 其中， 该激活指 示标识用于指示终端设备空闲模式下的激活 ISR。
进一步地， 上述第一发送模块向终端设备发送消息中， 还携带第一接入 类型对应的临时移动用户身份标识、 第一位置区信息、 以及第二接入类型对 应的临时移动用户身份标识、 第二位置区信息。 进一步地， 该消息中还可以 携带合一移动性管理网元指示信息， 用于通告终端设备该消息由合一移动性 管理网元发送， 以便终端设备根据激活指示标识激活 ISR后， 若承载发生变 化， 根据合一移动性管理网元指示信息， 维持 ISR。 而在现有技术中， 如果 终端设备感知承载发生改变（例如，新增 /修 1/删除了承载）则主动去激活 ISR 关联。
其中， 获取模块具体包括：
接收单元， 用于接收终端设备的当前第一位置区信息；
映射单元， 用于根据接收单元接收的当前第一位置区信息， 根据预设的 映射关系， 获取当前第一位置区信息对应的当前第二位置区信息。
进一步地， 网元还包括： 第二发送模块、 接收模块， 其中，
第二发送模块， 用于向服务网关发送携带第一控制面地址、 第二控制面 地址、 接入类型、 合一指示和激活指示标识的消息； 接收模块， 用于接收服务网关发送的下行消息。
进一步地， 网元还包括：
同步模块， 用于进行第一接入类型和第二接入类型的上下文同步； 通知模块， 用于通知服务网关执行承载更新同步。
综上所述， 本发明实施例提供的合一移动性管理网元， 能够直接激活终 端设备 ISR关联， 并能够优化激活 ISR过程中通知服务网关的过程， 并且还 能够实现承载改变后， 及时进行合一移动性管理网元的同步， 以及更新服务 网关的操作， 进一步地减少了位置更新的概率。
实施例 8
参见图 15 , 为本发明实施例 7提供的一种接入网元的结构示意图， 该接 入网元包括：
获取模块， 用于获取终端设备的当前第一位置区信息；
映射模块， 用于根据预设的映射关系， 获取上述获取模块获取的当前第 一位置区信息对应的当前第二位置区信息；
发送模块， 用于发送获取模块获取得到的当前第一位置区信息和映射模 块映射得到的当前第二位置区信息。
其中， 上述获取模块具体包括：
接收单元， 用于接收终端设备发送的注册请求； 注册请求中携带终端设 备的当前第一位置区信息；
获取单元， 用于根据接收单元接收的注册请求， 获取注册请求中携带的 终端设备的当前第一位置区信息。
其中， 上述注册请求具体为：
附着请求 Attach Request, 附着请求 Attach Request中携带终端设备的当 前第一位置区信息；
或，
位置更新请求 RAU Request, 位置更新请求 RAU Request中携带终端设 备的当前第一位置区信息。
本发明实施例提供的接入网元， 通过获取到的终端设备的当前第一位置 区信息 （RAI或 TAI )后， 根据自身预设的映射关系， 得到该当前第二位置 区信息 （TAI或 RAI )，相应地， 将获取的第一位置区信息和第二位置区信息 上报给合一移动性管理网元， 进而实现合一移动性管理网元能够直接激活终 端设备 ISR关联， 并且该映射关系的配置相对单个接入网元而言， 配置的数 量有限， 不会造成负担， 并且不会影响到核心网。
实施例 9
参见图 16, 为本发明实施例 8提供的一种服务网关的结构示意图， 该服 务网关包括：
接收模块， 用于接收合一移动性管理网元发送的携带第一控制面地址、 第二控制面地址、 接入类型的消息；
发送模块， 用于根据接收模块接收的接入类型， 从第一控制面地址和第 二控制面地址中选择相应的控制面地址，向选择的控制面地址发送下行消息。
进一步地， 服务网关还包括：
同步模块， 用于根据合一移动性管理网元发送的通知， 执行承载更新同 步。
其中， 发送模块包括：
请求单元， 用于根据接收模块接收的接入类型， 从第一控制面地址和第 二控制面地址中选择相应的控制面地址，向选择的控制面地址发送更新请求。
进一步地， 上述接收模块还用于接收合一移动性管理网元发送的激活指 示标识， 该激活指示标识用于通知服务网关激活 ISR; 则该服务网关还包括： 激活模块， 用于根据接收模块接收的激活指示标识激活 ISR;
进一步地， 上述接收模块还用于接收合一移动性管理网元发送的合一指 示， 该合一指示用于通告服务网关上述接收模块接收到的消息是由合一移动 性管理网元发送。 本发明实施例提供的服务网关， 通过获取到合一移动性管理网元上报的 控制面地址、 接入类型等信息， 根据接入类型， 选择合适的控制面地址后， 下发相应的消息触发寻呼终端。
综上所述， 参见图 17, 为本发明实施例提供的参考网络架构示意图， 本 发明实施例提供的技术方案， 通过合一移动性管理网元， 实现为终端 UE直 接激活 ISR, 进一步地， 合一移动性管理网元具有操作维护和成本优势， 还 可以减少各个接口的信令， 加快切换等移动性管理流程的速度， 简化 ISR的 实现等， 还可以减少原有架构中的 S3/Gn接口的信令负荷。
该合一移动性管理网元将 SGSN和 MME为 ISR所需要的额外交互内部 化， 其中， 这些交互包括建立 ISR关联（互相保存对方地址）、 承载上下文同 步动作，而且因为该合一移动性管理网元有能力进行内部的承载上下文同步， 无需终端 UE的指示，所以也可以不依赖终端 UE的指示或者限制 TMSI的使 用。 此外， 还可以屏蔽 ISR对服务网关 S - GW的影响。
本发明实施例中的部分步骤， 可以利用软件实现， 相应的软件程序可以 存储在可读取的存储介质中， 如光盘或硬盘等。
以上所述仅为本发明的具体实施例， 并不用以限制本发明， 对于本技术 领域的普通技术人员来说， 凡在不脱离本发明原理的前提下， 所作的任何修 改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权 利 要 求
1、 一种移动性管理处理方法， 其特征在于， 终端采用第一接入类型接入 核心网， 所述方法包括：
合一移动性管理网元获取所述终端当前第一位置区信息和当前第二位置 区信息， 所述当前第二位置区信息为对所述当前第一位置区信息映射得到； 根据所述当前第一位置区信息和所述当前第二位置区信息， 向所述终端 发送携带激活指示标识的消息， 所述激活指示标识用于指示所述终端空闲模 式下激活 ISR。
2、 根据权利要求 1所述的方法， 其特征在于， 所述合一移动性管理网元 获取所述终端当前第一位置区信息和当前第二位置区信息， 包括：
第一接入网中的接入网元获取所述终端的当前第一位置区信息， 根据预 设的映射关系， 获取所述当前第一位置区信息对应的当前第二位置区信息， 发送所述当前第一位置区信息和当前第二位置区信息；
所述合一移动性管理网元获取所述第一接入网中的接入网元发送的当前 第一位置区信息和当前第二位置区信息；
或者，
第一接入网中的接入网元获取并发送所述终端的当前第一位置区信息； 所述合一移动性管理网元获取所述当前第一位置区信息， 根据预设的映 射关系， 获取所述当前第一位置区信息对应的当前第二位置区信息。
3、 根据权利要求 1所述的方法， 其特征在于， 还包括：
服务网关获取所述合一移动性管理网元发送的携带第一控制面地址、 第 二控制面地址、 接入类型、 合一指示和激活指示标识的消息； 所述激活指示 标识用于通知所述服务网关激活 ISR; 所述合一指示用于通知所述服务网关 所述消息由所述合一移动性管理网元发送；
根据所述激活指示标识激活 ISR, 并根据所述接入类型， 从所述第一控 制面地址和第二控制面地址中选择相应的控制面地址， 向选择的控制面地址 发送下行消息。
4、根据权利要求 3所述的方法，其特征在于，所述终端改变了承载方式， 改由第二接入网类型接入核心网， 所述方法还包括：
所述合一移动性管理网元进行第一接入类型和第二接入类型的上下文同 步， 通知所述服务网关执行承载更新同步。
5、 根据权利要求 4所述的方法， 其特征在于， 当所述终端驻留第一接入 类型接入网， 改由第二接入网类型接入核心网， 所述方法还包括：
所述合一移动性管理网元获取所述服务网关下发的承载请求， 进行所述 第一接入类型和第二接入类型的上下文同步后， 通知所述服务网关执行承载 更新同步。
6、 根据权利要求 4或 5所述的方法， 其特征在于， 所述合一移动性管理 网元进行第一接入类型和第二接入类型的上下文同步的步骤， 具体为：
所述合一移动性管理网元获取所述第一接入类型的上下文发生改变后， 触发所述第一接入类型和第二接入类型的上下文同步；
或，
所述合一移动性管理网元获取终端发送的第二接入类型的服务请求后， 触发所述第一接入类型和第二接入类型的上下文同步。
7、 根据权利要求 1所述的方法， 其特征在于， 所述消息中还包括用于通 告所述终端所述消息由所述合一移动性管理网元发送的合一移动性管理网元 指示信息， 以便于所述终端根据所述激活指示标识激活 ISR后， 当承载发生 变化时， 根据所述合一移动性管理网元指示信息维持所述 ISR。
8、 一种移动性管理处理系统， 其特征在于， 包括： 合一移动性管理网元 和终端设备， 其中， 所述合一性移动管理网元与无线电接入网络 GERAN和 通用移动通信系统陆地无线接入网 UTRAN相连， 为所述终端设备提供通信 服务；
所述合一移动性管理网元用于获取所述终端设备的当前第一位置区信息 和当前第二位置区信息， 所述当前第二位置区信息为对所述当前第一位置区 信息映射得到； 并用于根据所述当前第一位置区信息和所述当前第二位置区 信息， 向所述终端设备发送携带激活指示标识的消息， 所述激活指示标识用 于指示所述终端设备空闲模式下激活 ISR;
所述终端设备用于通过第一接入类型接入核心网， 并用于获取所述合一 移动性管理网元发送的激活指示标识， 根据所述激活指示标识激活 ISR。
9、 根据权利要求 8所述的系统， 其特征在于， 所述消息中还包括合一移 动性管理网元指示信息， 所述合一移动性管理网元指示信息用于通告所述终 端设备所述消息由所述合一移动性管理网元发送；
所述终端设备还用于在激活 ISR后， 若承载发生变化， 根据所述合一移 动性管理网元指示信息， 维持所述 ISR。
10、 根据权利要求 8所述的系统， 其特征在于， 还包括： 服务网关， 所述服务网关， 用于获取所述合一移动性管理网元发送的携带第一控制 面地址、 第二控制面地址、 接入类型、 合一指示和激活指示标识的消息； 所 述激活指示标识用于通知所述服务网关激活 ISR; 所述合一指示用于通告所 述服务网关所述消息由所述合一移动性管理网元发送； 还用于根据所述激活 指示标识激活 ISR, 并根据所述接入类型， 从所述第一控制面地址和第二控 制面地址中选择相应的控制面地址， 向选择的控制面地址发送下行消息； 相应地， 所述合一移动性管理网元， 还用于向所述服务网关发送携带第 一控制面地址、 第二控制面地址、 接入类型、 合一指示和激活指示标识的消 息； 还用于接收所述服务网关发送的下行消息。
11、 根据权利要求 10所述的系统， 其特征在于， 所述合一移动性管理网 元还用于进行第一接入类型和第二接入类型的上下文同步， 并通知所述服务 网关执行承载更新同步；
所述服务网关用于根据所述合一移动性管理网元发送的通知， 执行承载 更新同步。
12、 一种合一移动性管理网元， 所述合一性移动管理网元与无线电接入 网络 GERAN和通用移动通信系统陆地无线接入网 UTRAN相连， 为终端设 备提供通信服务， 其特征在于， 所述网元包括：
获取模块， 用于获取终端设备的当前第一位置区信息和当前第二位置区 信息， 所述当前第二位置区信息具体为通过对所述当前第一位置区信息映射 获取得到；
第一发送模块， 用于根据所述获取模块获取的当前第一位置区信息和所 述当前第二位置区信息， 向所述终端设备发送携带激活指示标识的消息， 所 述激活指示标识用于指示所述终端设备空闲模式下激活 ISR。
13、根据权利要求 12所述的网元，其特征在于，所述获取模块具体包括： 接收单元， 用于接收终端设备的当前第一位置区信息；
映射单元， 用于根据所述接收单元接收的当前第一位置区信息， 根据预 设的映射关系， 获取所述当前第一位置区信息对应的当前第二位置区信息。
14、根据权利要求 12所述的网元， 其特征在于，还包括： 第二发送模块、 接收模块， 其中，
所述第二发送模块用于向服务网关发送携带第一控制面地址、 第二控制 面地址、 接入类型、 合一指示和激活指示标识的消息；
所述接收模块用于接收所述服务网关发送的下行消息。
15、 根据权利要求 14所述的网元， 其特征在于， 还包括：
同步模块， 用于进行第一接入类型和第二接入类型的上下文同步； 通知模块， 用于通知所述服务网关执行承载更新同步。
16、 根据权利要求 12所述的网元， 其特征在于， 所述消息中还包括合一 移动性管理网元指示信息， 用于通告所述终端设备所述消息由合一移动性管 理网元发送， 以便所述终端设备根据所述激活指示标识激活 ISR后， 若承载 发生变化， 根据所述合一移动性管理网元指示信息， 维持所述 ISR。
17、 一种接入网元， 其特征在于， 包括： 获取模块， 用于获取终端设备的当前第一位置区信息；
映射模块， 用于根据预设的映射关系， 获取所述获取模块获取的当前第 一位置区信息对应的当前第二位置区信息；
发送模块， 用于发送所述获取模块获取得到的当前第一位置区信息和所 述映射模块映射得到的当前第二位置区信息。
18、 根据权利要求 17所述的接入网元， 其特征在于， 所述获取模块具体 包括：
接收单元， 用于接收终端设备发送的注册请求； 所述注册请求中携带所 述终端设备的当前第一位置区信息；
获取单元， 用于根据所述接收单元接收的注册请求， 获取所述注册请求 中携带的所述终端设备的当前第一位置区信息。
19、 根据权利要求 18所述的接入网元， 其特征在于， 所述注册请求具体 为：
附着请求 Attach Request, 所述附着请求 Attach Request中携带所述终端 设备的当前第一位置区信息；
或，
位置更新请求 RAU Request, 所述位置更新请求 RAU Request中携带所 述终端设备的当前第一位置区信息。
20、 一种服务网关， 其特征在于， 包括：
接收模块， 用于接收合一移动性管理网元发送的携带第一控制面地址、 第二控制面地址、 接入类型的消息；
发送模块， 用于根据所述接收模块接收的接入类型， 从所述第一控制面 地址和第二控制面地址中选择相应的控制面地址， 向选择的控制面地址发送 消息。
21、 根据权利要求 20所述的服务网关， 其特征在于， 还包括： 同步模块， 用于根据所述合一移动性管理网元发送的通知， 执行承载更 新同步。
22、根据权利要求 20所述的服务网关，其特征在于，所述发送模块包括： 请求单元， 用于根据所述接收模块接收的接入类型， 从所述第一控制面 地址和第二控制面地址中选择相应的控制面地址， 向选择的控制面地址发送 更新请求。
23、 根据权利要求 20所述的服务网关， 其特征在于， 所述接收模块还用 于接收所述合一移动性管理网元发送的激活指示标识， 所述激活指示标识用 于通知所述服务网关激活 ISR;
所述服务网关还包括：
激活模块， 用于根据所述接收模块接收的激活指示标识激活 ISR。
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