WO2009067881A1

WO2009067881A1 - Method, measurement method, system and device for management of mobility

Info

Publication number: WO2009067881A1
Application number: PCT/CN2008/072936
Authority: WO
Inventors: Yang Zhao; Wulin Weng
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2007-11-06
Filing date: 2008-11-04
Publication date: 2009-06-04

Abstract

A method for management of mobility is provided, said method comprises the following steps: Generic Access Network (GAN) controller receives indication information sent by terminal, and said indication information includes type of reference network and/or information of preferred GAN mode of the terminal; Said GAN controller selects GAN mode according to said indication information. A system and device for management of mobility are also disclosed. With the method, when terminal initiates registration between GERAN/UTRAN and GAN, it can select optimal GAN mode to register according to the network in which it resides or select preferred GAN mode, therefore network resources can be optimized.

Description

Method, measuring method, system and equipment for mobility management The application is submitted to the Chinese Patent Office on November 6, 2007, the application number is 200710169626.5, and the invention name is "a method, system and equipment for mobility management" Priority of the Chinese patent application, and is required to be submitted to the Chinese Patent Office on August 18, 2008, application number 200810213295.5, and the invention titled "A Method, Measurement Method, System and Equipment for Mobility Management" Priority is hereby incorporated by reference in its entirety. Technical field

The present invention relates to the field of communications technologies, and in particular, to a mobility management method, a measurement method, a system, and a device. Background technique

In the mobile communication network, as an access network for the bridge between the end user and the core switching network, the communication capability directly affects the user's experience with the mobile service. Short-range wireless communication technology has received more and more attention due to its advantages of high access bandwidth and low communication cost. The method of providing wireless access in the unlicensed frequency band based on the short-range wireless communication technology is rapidly spreading, and coexists with the conventional wireless access network in the local area or even in the metro area. Therefore, the conventional radio access network, for example, UMRAN (UMTS Terrestrial Radio Access Network) and GSM (Global System for Mobile communications) in UMTS (Universal Mobile Telecommunications System) System) and GERAN Access Network (Enhanced Data Rate for GSM Evolution Radio Access Network) and GAN (Generic Access Network) with UMA (Unlicensed Mobile Access) Seamless switching and roaming between networks has become a hot topic of technology.

The original GAN supports the A/Gb mode, as shown in Figure 1. With the development of technology, the enhanced GAN (EGAN) is introduced, mainly to increase the Iu mode of GAN. In order to maintain the compatible A/Gb mode, as shown in Figure 2, to support the absence between UMTS and EGAN. Slot switching and roaming. The terminal must first register to the GANC (Generic Access Network Controller) through the Generic Access IP Network to establish a communication connection. The GANC is equivalent to a BSS (Base Station Subsystem) or RNC. (Radio Network Controller, Wireless Network Controller), and the Universal Access IP Network provides wireless access points. When GAN Network and EGAN Network When coexisting, GANC can support both A/Gb mode and Iu mode, and dual-mode terminals can support both A/Gb and Iu modes. The GANC of the GAN network is called the traditional GANC, and the GANC of the EGAN network is called the enhanced GANC to show the difference.

When the GERAN/UTRAN to EGAN handover is initiated, if both the terminal and the network support the two modes and perform the handover process in the same mode, the signaling overhead is relatively small and the execution process is simple, such as: switching from GERAN to GAN A /Gb mode, initiates a handover from UTRAN to GAN Iu mode. Therefore, after the introduction of EGAN, there is a possibility of switching.

For GAN networks that only support A/Gb mode, since Iu mode is not supported, only GAN A/Gb mode can be switched. For the EGAN network, the enhanced GANC can support both A/Gb and Iu modes. When the dual-mode terminal switches from GERAN/UTRAN to GAN network, the specific steps are as shown in Figure 3, including the following steps:

Step s301: The terminal is attached to the GERAN/UTRAN cell, and the GAN network service is detected.

Step s302: The terminal successfully completes the GAN registration. At this time, because the GANC supports both the A/Gb mode and the Iu mode, the terminal may successfully register to the GAN A/Gb mode, and may also successfully register to the GAN Iu mode.

Step s303: After the handover condition is met, if the cell signal of the GERAN/UTRAN is relatively poor, the source BSS/RNC will decide to initiate the handover after receiving the measurement report of the terminal, and whether the handover is to the GAN A/Gb mode or the Iu mode completely depends on the handover. In which mode the registration is successful.

In the process of implementing the present invention, the inventors have found that the following disadvantages exist in the prior art:

1. In the measurement report reported by the terminal, since only the GAN cell ID is identified, GERAN/UTRAN does not know which mode is used, and the handover procedure using that mode cannot be determined.

2. In the EGAN network, the enhanced GANC can support both A/Gb mode and Iu mode, and the dual mode terminal can also support both A/Gb and Iu modes. When the GERAN/UTRAN to EGAN handover is initiated, if both the terminal and the network support two modes, then the terminal switches to the GAN A/Gb mode or the Iu mode is uncontrollable, and in which mode the registration is successful, which mode is switched. If the terminal initiates a handover from GERAN, the result is successfully registered in GAN Iu mode. At this point, the terminal will switch from GERAN to GAN Iu mode. Obviously, the handover between different RATs (Radio Access Technology) will be better than The switching between the same RAT of GERAN switching to GAN A/Gb mode is much more complicated. If the terminal initiates a handover from the UTRAN, it is equally easy to know that switching to the GAN Iu mode is relatively simple.

3. Currently, as the E-UTRAN cell is introduced as a new access network to 3GPP (The 3rd Generation Partnership Project), the GERAN/UTRAN cell adopts a priority mechanism for mobility management: The network side sends priority information of different access networks to the terminal, and then the terminal performs cell reselection operations according to the priority, and the network side can also perform handover decision according to the information. When GAN network and GERAN/UTRAN occur When the network is switched or reselected, how does the GAN network or the terminal obtain the priority information and apply the priority information, and the prior art does not provide a corresponding solution;

4. At present, the terminal network side supporting multiple access networks can perform control of reporting and measurement reporting. For example, when the mobile phone is in the GERAN CS dedicated state, the network can issue a command or an indication to the terminal to prohibit measurement of the E-UTRAN cell and The UTRAN cell avoids excessive measurement and/or measurement reporting, whereas prior art solutions fail to properly switch to the GAN cell when performing the control of the measurement and measurement reporting.

The prior art is not controllable for what mode the terminal can switch to, and thus the switching complexity is increased, and unnecessary overhead is added. At the same time, the prior art does not consider the introduction of the priority mechanism and the influence of the introduction of the measurement control on the GAN network, so that normal cell reselection and handover between the GAN cell and the GERAN/UTRAN cell cannot be performed. Summary of the invention

The embodiments of the present invention provide a method, system, and device for mobility management, so as to implement a mode in which a terminal user can control switching, and reduce handover complexity and unnecessary overhead. The embodiment of the invention further provides a method, system and device for mobility management, so that cell reselection and handover between the GAN cell and the GERAN/UTRAN cell can be performed normally after the introduction of the priority mechanism. The embodiment of the invention further provides a measurement method, system and device, such that cell reselection and handover between the GAN cell and the GERAN/UTRAN cell can be performed normally after the introduction of the measurement control.

An embodiment of the present invention provides a mobility management method, including:

The universal access network controller receives the indication information sent by the terminal; the indication information includes reference network type information and/or terminal preferred universal access network mode information;

The universal access network controller selects a mode of the universal access network according to the indication information.

Embodiments of the present invention provide a mobility management method, so that mobility management can be performed normally. The method includes:

Configuring, for the same GAN cell in different modes, a GAN cell identifier corresponding to the mode; the universal access network controller of the GAN network to which the GAN cell belongs, when receiving the terminal registration, sending the GAN cell identifier to the Terminal

The terminal sends the GAN cell identifier to the source network when triggering the handover to the GAN network; and the source network initiates a handover procedure to the GAN cell according to the GAN cell identifier.

The embodiment of the invention provides a system for mobility management, including:

a terminal, configured to send indication information to a universal access network controller; the indication information includes reference network type information And/or the terminal preferably uses universal access network mode information;

And a universal access network controller, configured to receive indication information sent by the terminal, and select a mode of the universal access network according to the indication information.

An embodiment of the present invention provides a universal access network controller, including:

a receiving unit, configured to receive indication information sent by the terminal;

And a selecting unit, configured to select a mode of the universal access network according to the indication information.

The embodiment of the invention provides a mobility management method, including:

The terminal sends the indication information supporting the priority to the universal access network controller, and receives the priority information sent by the universal access network controller;

The terminal performs mobility management according to the priority information.

The embodiment of the invention provides a terminal, including:

a sending unit, configured to send, to the universal access network controller, indication information supporting a priority;

a receiving unit, configured to receive priority information sent by a universal access network controller;

a mobility management unit, configured to perform mobility management according to priority information received by the receiving unit.

a first receiving unit, configured to receive indication information of a support priority sent by the terminal;

And a sending unit, configured to send priority information to the terminal after the receiving unit receives the indication information supporting the priority.

An embodiment of the present invention provides a mobility management system, including a terminal and a universal access network controller: the universal access network controller is configured to send priority information to the terminal; Priority information for mobility management.

The embodiment of the invention provides a measurement method, including:

Receiving, by the network side, a measurement control indication, where the measurement control indication includes an indication of whether to perform measurement on the GAN cell, and/or whether to perform measurement on the GAN cell;

The reporting of the cell measurement and/or measurement is performed according to the measurement control indication.

The embodiment of the invention provides a terminal, including:

a receiving unit, configured to receive a measurement control indication sent by the network side, where the measurement control indication includes an indication of whether to perform measurement on the GAN cell, and/or whether to perform measurement on the GAN cell;

And a measuring unit, configured to perform reporting of the cell measurement and/or measurement according to the measurement control indication received by the receiving unit. The embodiment of the invention provides a measurement system, including a terminal and a network side:

The network side is configured to send a measurement control indication, where the measurement control indication includes an indication of whether to perform measurement on the GAN cell, and/or whether to perform measurement on the GAN cell;

The terminal is configured to receive a measurement control indication sent by the network side, and perform cell measurement and/or measurement reporting according to the received measurement control indication.

In an embodiment of the present invention, when the handover between the GERAN/UTRAN and the GAN is initiated, the user terminal may register according to the network in which it is located, preferably perform different handovers, or complete the handover, or select the desired GAN mode. Registering and switching can simplify the switching process and optimize network resources.

In another embodiment of the present invention, when accepting the registration request of the terminal, the GAN distinguishes different modes of the same GAN cell by using different GAN cell identifiers, so that mobility management such as handover can be performed normally.

In another embodiment of the present invention, the reporting of the cell measurement and/or the measurement is performed according to the measurement control indication, by transmitting a measurement control indication of whether the GAN cell is measured, and/or whether the measurement is performed on the GAN cell, The cell reselection and handover between the GAN cell and the GERAN/UTRAN cell after the introduction of the measurement control can be performed normally.

In another embodiment of the present invention, the priority information is sent by the universal access network controller, and then mobility management is performed according to the received priority information, so that after the priority mechanism is introduced, the GAN cell and the GERAN/UTRAN cell are introduced. Cell reselection and switching can be performed normally. DRAWINGS

1 is a schematic structural diagram of a system in which a GAN supports an A/Gb mode in the prior art;

2 is a schematic structural diagram of a system in which an Iu mode of GAN is added in the prior art;

3 is a flow chart of switching from a GERAN/UTRAN to a GAN network in a prior art in a dual mode terminal;

4 is a flowchart of a method for mobility management according to Embodiment 1 of the present invention;

5 is a flowchart of a handover process in Embodiment 2 of the present invention;

6 is a structural diagram of a registration request message in Embodiment 2 of the present invention;

7 is a structural diagram of a newly added PGI message in Embodiment 2 of the present invention;

8 is a flowchart of a registration update process in Embodiment 3 of the present invention;

9 is a structural diagram of a registration update message in Embodiment 3 of the present invention;

10 is a flow chart of switching in Embodiment 4 of the present invention;

11 is a structural diagram of a GPS IE in which a PS domain is added in Embodiment 4 of the present invention; 12 is a flowchart of switching in Embodiment 6 of the present invention;

Figure 13 is a structural diagram of a measurement system in Embodiment 7 of the present invention;

Figure 14 is a structural diagram of a system for mobility management in Embodiment 8 of the present invention;

Figure 15 is a structural diagram of a system for mobility management in Embodiment 9 of the present invention. detailed description

The technical solution of the embodiment of the present invention can be applied to both the traditional GANC and the enhanced GANC. It can be understood by those skilled in the art that the embodiments of the present invention may be exemplified by the conventional GANC or the strong GANC, but the scope of the present invention is not limited. The GANC mentioned in this article can refer to both traditional GANC and enhanced GANC.

Embodiment 1

The embodiment of the invention provides a method for mobility management. As shown in FIG. 4, the method includes the following steps:

Step s401: The terminal sends a mobility management request message to the enhanced GANC. The request message carries the mobility management information (that is, the indication information) of the terminal, and may include the reference network type indication information that the network currently attached by the terminal is GERAN or UTRAN, and/or the network that the terminal preferably uses is the Iu mode or The terminal of the A/Gb mode preferably uses the universal access network mode indication information. The reference network type indication information includes location information and/or service status information of the current attached network of the terminal.

Mobility management can be a process of cell/network reselection, handover, discovery, registration, registration update, and the like.

Step s402: The enhanced GANC receives the mobility management request message sent by the terminal.

Step s403: The enhanced GANC performs preferred mobility management according to the indication information in the mobility management request message. For example: Select the mode of the universal access network to be adopted and the mode of accepting the registration.

The reference network type indication information carried in the request message is used to identify the wireless or fixed network to which the terminal is currently attached, and the mode.

The terminal of the request message carries the preferred universal access network mode indication information for identifying the mode that the terminal desires to use.

Based on this information, the enhanced GANC may select one or a combination of the following for mobility management: 1. If the EGAN supports the mode of the terminal identified by the reference network type indication information, it is preferable to have the terminal in the mode. If it is currently registered and not in this mode, the process is initiated, and the terminal is transferred to the mode, such as registering the update process; if not currently registered, the terminal is registered in the mode and the terminal is notified. 2. If the EGAN supports the preferred universal access network mode of the terminal, it is preferred to have the terminal in the preferred mode. If it is currently registered and not in this mode, the process is initiated, and the terminal is transferred to the mode, such as registering the update process; if not currently registered, the terminal is registered in the mode and the terminal is notified.

3. If EGAN supports both the mode of the terminal identified by the reference network type indication information and the preferred universal access network mode of the terminal, the combination of the above two information is used to comprehensively determine which mode is adopted. If it is currently registered and not in this mode, the process is initiated to let the terminal transfer to the mode, such as registering the update process; if not currently registered, let the terminal register in the mode and notify the terminal.

4. If EGAN does not support the mode of the terminal identified by the reference network type indication information, nor does it support the preferred universal access network mode of the terminal, the enhanced GANC selects a mode that it can support for mobility management, or Redirect to the new GANC, or respond to the request rejection message, notifying the terminal that the mobility management process failed.

In this embodiment, when the handover between the GERAN/UTRAN and the GAN is initiated, the terminal may register according to the network in which it is located, preferably completes the handover according to different GAN modes, or selects the GAN mode that is desired by the user to register and switch. It can simplify the switching process and optimize network resources.

Embodiment 2

In the embodiment, the handover process is as shown in FIG. 5. When the terminal has not registered to the GAN network, the following steps are included: Step S501: The terminal discovers that the EGAN network service exists under the GERAN or UTRAN network.

Step s502: The terminal successfully completes the GAN registration in the mode that it wishes to optimize by registering or registering the update process by the GAN.

The specific implementation process is as follows: The terminal indicates in the registration request message which mode the enhanced GANC itself wishes to prefer. The terminal may directly add an indication bit to the registration request to indicate which mode is to be used. After receiving the request, the enhanced GANC determines whether to accept the registration request according to the instruction of the terminal, or redirects the terminal to the appropriate GANC. 6, wherein PGI represents a preferred GANC indication, and may be set to: 00 indicates a preferred A/Gb mode, 01 indicates a preferred Iu mode, and 11 indicates no preferred mode. It can be understood that all possible values of the PGI and their meanings are not necessarily only one of the above, for example, 01 may indicate a preferred A/Gb mode, 10 indicates a preferred Iu mode, and 00 indicates no preferred mode.

The numerical arrangement of the indication may also be different from the sequence in FIG. 6. This field shall be added in the registration request (GA-RC REGISTER REQUEST) message. It can be understood that the bit occupied by the PGI cell may be any unused in the message. The bit bit can occupy more than 2 bits, and can also be 3bit, 4bit, etc. For example, the indication can also be included in the existing field of the registration request message: GAN CLASSMARK, represented by the current empty bits, such as Figure 7: Among them, TGA (Type of Generic Access), which is used to indicate the type of universal access network currently used by the terminal. It can be set to: 0 0 0 0 means no wireless network, 0 0 0 1 means Bluetooth, 0 0 1 0 means WLAN 802.11, 1 1 1 1 means no indication. GC (GERAN Capable), 0 indicates that the mobile terminal does not have GERAN capability, and 1 indicates that the terminal has GERAN capability. In UC (UTRAN Capable), 0 indicates that the terminal has no UTRAN capability, and 1 indicates that the terminal has UTRAN capability. In RRS (RTP Redundancy Support), 0 means RTP redundancy is not supported, and 1 means RTP redundancy is supported. PS HO (PS Handover Capable), 0 indicates that the terminal does not support PS handover to/from GAN mode, and 1 indicates that the terminal supports PS handover to/from GAN mode. In PGI (Preferred GANC indicator), 00 means prefer A/Gb mode, 01 means Prefer Iu mode, 11 means no preferred mode, 10 is spare, understandable, all possible values of PGI cells and their meanings are not necessarily only one of the above For example, 01 may indicate a preferred A/Gb mode, 10 indicates a preferred Iu mode, and 00 indicates no preferred mode. The network registers the terminal to the corresponding GAN mode according to the indication of the PGI cell. For example, when the PGI indicates that the preferred mode of the terminal is the A/Gb mode, the GANC registers the terminal to the A/Gb mode of the GAN; the PGI indicates the preferred mode of the terminal. In the Iu mode, the GANC registers the terminal to the Iu mode of the GAN; if the PGI indicates that there is no preferred mode, the network can make decisions based on other information or policies, such as according to the source network type of the terminal.

Step s503: When the terminal finds that the condition for switching to the GAN is met, the terminal sends a handover request message, triggering handover to the enhanced GANC; or when the terminal finds that the condition for reselecting to the GAN is satisfied, the terminal performs reselection to the GAN, and changes Its own state, attached to the GAN cell.

Before the handover trigger, the GANC can perform mode correction, adjust the mode of the terminal to the mode consistent with the source cell (the currently attached GERAN/UTRAN cell), and then trigger the handover, such as using the registration update process.

In Figure 7, PGI is the new content of the message. It can be understood that the PGI is represented in which field, no matter what order and field value are used to indicate different preferred modes, as long as the above information is carried in the registration request, It belongs to the scope of protection of this technical solution.

In this embodiment, when the terminal is first registered in the GAN network, the UE may carry the desired preference mode information in the registration request message. After receiving the registration request message of the terminal, the GANC may register the terminal according to the preferred mode information carried in the message. The desired mode.

Embodiment 3

In this embodiment, after the terminal successfully registers with an enhanced GANC GANC1, if the terminal wants to change its own GAN mode due to reasons such as moving, changing the location of the access point, initiating the handover, etc., the registration update request (REGISTER UPDATE) may be adopted. The message informs the GAN network that the GAN network will process according to the preferred mode carried by the terminal in the registration update request message, such as redirecting the terminal to other suitable GANC2. The registration update process is shown in Figure 8, package Including the following steps:

In step s801, the terminal sends a GA-RC REGISTER UPDATE message to the enhanced GANC. The message is as shown in FIG. 9. PGI indicates a preferred GANC indication, 00 indicates a preferred A/Gb mode, 01 indicates a preferred Iu mode, and 11 indicates that there is no preferred mode. 10 spare. The numerical arrangement of the indications may also differ from the above sequence.

Step s802: If the enhanced GANC is unable to provide the preferred mode requested by the terminal, redirect it to the new enhanced GANC, and send a GA-RC registration redirection message to the terminal GA-RC REGISTER REDIRECTS to receive the redirect message. After that, the terminal re-initiates the registration process to the new GANC.

Step s803, if the enhanced GANC can provide the preferred mode requested by the terminal, accept the registration request, and send a registration acceptance GA-RC REGISTER ACCEPT message to the terminal.

The registration acceptance message can optionally carry the currently accepted mode, such as A/Gb mode, Iu mode.

In FIG. 7, the PGI is a new content of the message, no matter which field is represented, no matter what order and field value are used to represent different preferred modes, as long as the above indication information is carried in the registration update request, the technology belongs to the present technology. The scope of program protection.

In this embodiment, when the terminal wants to change its own GAN mode, the GAN network may be notified by registering the update request message, and the GAN network processes according to the preferred mode carried in the registration update request message, so that the terminal can register to the desired preference. Mode.

Embodiment 4

In this embodiment, as shown in FIG. 10, the following steps are included:

Step sl001: The GANC receives the registration request of the terminal, where the registration request carries the network type currently attached by the terminal, such as GERAN, UTRAN, and the like.

In step sl002, the GANC determines the network mode in which the terminal is located. The information such as the cell identifier/location area identifier/routing area identifier carried in the registration request/registration update request may indicate the RAT of the current terminal, and the GSM RR/UTRAN RRC State may further identify the current service status of the current terminal, and the network may Based on this, it is judged which mode should be adopted to accept the registration request of the terminal. For example, when the cell identifier included in the registration request/registration update request message is GERAN Cell identity, the GANC registers the terminal to the A/Gb mode; when the cell identifier included in the registration request/registration update request message is the 3G Cell identity, GANC registers the terminal to Iu mode. The GANC can further make a judgment according to the service state of the terminal. For example, when the service state of the terminal is idle, even if the terminal is currently in the GERAN network, the GANC can still register the terminal to the GAN Iu mode (for example, when the GAC of the Iu mode is overloaded) Because this does not affect the business continuity of the terminal. When the service status of the terminal is active/proprietary/connected, GANC must The terminal registers with the GAN A/Gb mode to ensure continuity of the service.

At this time, since the status reported by the terminal does not include the GPRS status, the GSM RR/UTRAN RRC State IE needs to increase the PS domain status description, that is, change to the GSM RR/UTRAN RRC/GPRS State IE, so that the GANC can correctly identify the current terminal. The RAT where it is located. The IE, as shown in FIG. 11, includes a GSM RR/UTRAN RRC/GPRS state, wherein the GPS cell indicates the state of the GPRS, and when the state value is valid (ie, indicates that the GPRS is idle or the transmission state), the mobile terminal is in the GERAN coverage. . It can be understood that the 2 bit bits occupied by the GPS are not necessarily the positions shown in FIG. 11, as long as they are not used by other cells, for example, any empty bits that are not occupied in the GRS IE, and, in addition, GPS cells It does not necessarily occupy only 2 bits, for example, it can occupy 4 or 5 bits, and the like. When GPS is 00, GPRS is idle, 01 is GPRS transmission status, and 10 is unknown. It can be understood that all possible values of GPS cells and their meanings are not necessarily the above one. For example, 01 can indicate GPRS transmission. State, 10 indicates GPRS idle state, and 11 indicates unknown state. The meanings of bits 1-3 in the GSM RR/UTRAN RRC state include: 0 0 0 indicates that the GSM RR is in the IDLE state; 0 0 1 indicates that the GSM RRC is in the DEDICATED state; 0 1 0 indicates that the UTRAN RRC is in the idle state; 0 1 1 Indicates that the UTRAN RRC is in the CELL_DCH state; 1 0 0 indicates that the UTRAN RRC is in the CELL_FACH state; 1 0 1 indicates that the UTRAN RRC is in the CELL_PCH turntable; 1 1 0 indicates that the UTRAN RRC is in the URA_PCH state; 1 1 1 indicates unknown; When the cell indicates a valid GSM RR state, it indicates that the terminal is in GERAN coverage. When the cell indicates a valid UTRAN RRC state, it indicates that the terminal is in UTRAN coverage.

GANC can combine these two methods to make a registration decision. The terminal reports the status of GERAN/UTRAN and its preferred mode at the same time. GANC judges according to certain policies. For example, when the terminal is under GERAN coverage, the CS service is being performed, that is, in the CS DEDICATED state. When the preferred mode of the terminal is the Iu mode, in order to maintain business continuity as much as possible, the GANC still establishes an A/Gb mode connection with the terminal. When the terminal is in the GERAN coverage and is in the idle state, when the preferred mode of the terminal is the Iu mode, the GANC will satisfy the requirements of the terminal as much as possible, and establish the GAN connection of the Iu mode with the terminal.

Of course, this is just an example of a judgment strategy. GANC's judgment may also be considered in consideration of the operator's configuration, network load, etc., and may not be completely in accordance with the above judgment process.

In this embodiment, when the terminal performs registration, the GANC determines the network mode of the terminal, and the network can determine which mode should be used to accept the registration request of the terminal.

Embodiment 5

In this embodiment, as shown in FIG. 12, the following steps are included: In step s1201, the terminal is attached to the GERAN or UTRAN cell, is performing CS or PS or DTM service, and has successfully registered on the GAN network.

When accepting the registration request of the terminal, the GAN uses different GAN cell identifiers to distinguish different modes of the same GAN cell (eg, using GAN Cell ID1 to identify the GAN Iu mode cell, and GAN Cell ID2 to identify the GAN A/Gb mode cell), The GAN cell identification information is included in the GA-RC REGISTER ACCEPT message and sent to the terminal. After receiving the terminal, the GAN cell identification information is saved locally.

In order to enable mobility management to work properly, especially handover, in GERAN/UTRAN, corresponding information needs to be configured to distinguish.

Step sl202: When the terminal triggers the handover to the GAN network, the GAN cell identification information is included in the measurement report reported to the source network GERAN/UTRAN. The GERAN/UTRAN receives the measurement report carrying the GAN cell identification information, searches for the corresponding target GAN cell and its mode in the locally pre-stored mapping table according to the GAN cell identifier, and initiates a handover process to the GAN cell, and the terminal is Switch to GAN. For example, the identifier of the GAN Iu mode cell is received GAN Cell ID1, then the handover to the GAN Iu cell is initiated; and the identifier of the GAN A/Gb mode cell is received, GAN Cell ID2, to initiate handover to the GAN A/Gb cell.

In the embodiment of the present invention, when the GAN network and the EGAN network coexist, that is, the GANC can simultaneously support the A/Gb mode and the Iu mode GAN, when accepting the registration request of the terminal, use different GAN cell identifiers to distinguish the same GAN cell. The mode enables the mobility management such as switching to proceed normally.

Embodiment 6

When the terminal and the network support measurement and measurement reporting control under GERAN/UTRAN, the terminal or BSS/RNC needs to inform the GANC of this information. For example, when the terminal is in the active state of the GERAN, and the measurement or measurement report of the UTRAN cell is disabled by the network at this time, if the terminal has registered to the GAN Iu mode at this time, since the measurement report of the GAN Iu mode is reported by the UTRAN cell, Therefore, the terminal cannot report the measurement result of the GAN cell, or even if the terminal reports the network side, it is considered that the measurement report of the UTRAN cell is ignored, and the handover of the cut-in GAN cell cannot be performed normally. Therefore, when the terminal has registered to the GAN Iu mode but has not yet switched, or the terminal has not been registered but is ready to register to the GAN, the mobility may be passed through, for example, a registration request, a registration update request, etc. according to the above-described second, third, and fourth embodiments. The management request informs the GANC that the preferred mode is the GAN A/Gb mode. In this case, the terminal can normally report the measurement result of the GAN cell in the manner of the GERAN cell, and ensure that the handover of the cut-in GAN cell is normal. Similarly, when the terminal is in the UTRAN ACTIVE state and the GERAN measurement report is disabled, when the terminal has registered to the GAN A/Gb mode but has not switched, or the terminal has not registered but is ready to register to the GAN, The preferred mode of the GANC may be notified to the GAN Iu mode by a mobility management request such as a registration request, a registration update request, or the like according to the method described in the above embodiments. When the above situation occurs during the handover has been performed, the source BSS/RNC may also be sent to the GANC.

Example 7

In the above embodiment, the terminal is used to indicate which GAN mode the GANC is to provide, but the method has a disadvantage that the terminal indicates that the GANC can only be a recommended value, if the GAN does not support the recommended mode or because of its own policy. Accepting the recommendation mode provided by the terminal, the above problem still exists. Therefore, when the GERAN/UTRAN network performs measurement control, in addition to considering the measurement and measurement reporting control of the GERAN/UTRAN/EUTRAN cell, it is also necessary to consider the amount of the GAN cell and the reported reporting control. Therefore, in this embodiment, the terminal receives the measurement control indication sent by the network side, and performs reporting of the cell measurement and/or measurement according to the measurement control indication. Wherein, the measurement control indication sent by the network (such as the BSS/RNC), where the measurement control indication includes indication information for reporting of measurement and/or measurement, not only indicating the measurement of the GERAN/UTRAN/EUTRAN network and/or Or the reported report also includes an indication of the reporting of the GAN cell measurement and/or measurement, for example, the BSS/RNC carries a network controlled measurement/measurement reporting cell on the dedicated signaling with the terminal (Network controlled measurements/measurements reporting IE), the cell is used to indicate whether to allow measurement of the GAN cell, and/or whether to allow measurement of the measurement of the GAN cell, etc., for example, as shown in Table 1, indicating whether the "GAN" field of the cell indicates Allows measurements on the GAN cell, and/or whether to allow measurements of the GAN cell to be measured:

Table 1

In the "GAN" field of the cell, the field is occupied by taking 2 bits as an example to illustrate the setting of the field:

00 indicates that the GAN cell is not measured, and the measurement of the GAN cell is not reported;

01 indicates that the GAN cell is measured but not reported;

10 indicates that the GAN cell is measured and reported.

Of course, the above field values and corresponding contents are merely exemplary, and other correspondences are not limited.

You can also set the "GAN" field to 3 bits as follows:

000 means that the GAN cell is not measured, and no measurement is reported;

001 indicates that the GAN A/Gb cell is measured but not reported; 010 indicates that the GAN A/Gb cell is measured and reported;

011 indicates that the GAN Iu cell is measured but not reported;

100 indicates that the GAN Iu cell is measured and reported;

101 indicates that the GAN cell is measured but not reported;

110 indicates that the GAN cell is measured and reported.

Of course, the above field values and corresponding contents are merely exemplary, and other correspondences are not limited, and the function of the indication can be realized.

The "GAN" field and its setting mentioned in this embodiment are merely exemplary. The present embodiment does not limit the name of the indication field, the number of bits, and the like, as long as the function of the indication can be implemented. The cells in this embodiment may also be used to indicate measurements to other network cells, and/or whether to allow measurements of measurements on other network cells, and the like. The cell may also be sent in some existing messages, for example, in a measurement control message, a system message, an assignment message, a handover control class, etc., or a new message structure may be defined to send the indication information. . The new message structure can be used to separately indicate the measurement/measurement report control of the GAN cell, or it can be used to indicate measurement/measurement reporting control of other access networks. Correspondingly, referring to FIG. 13, corresponding to the method of this embodiment, this embodiment provides a measurement system, including a network side 131 and a terminal 132:

The network side 131 is configured to send a measurement control indication, where the measurement control indication includes an indication of whether to perform measurement on the GAN cell, and/or whether to perform measurement on the GAN cell.

The terminal 132 includes:

The receiving unit 1321 is configured to receive a measurement control indication sent by the network side 131, where the measurement control indication includes an indication of whether to perform measurement on the GAN cell, and/or whether to perform measurement on the GAN cell;

The measuring unit 1322 is configured to perform reporting of the cell measurement and/or measurement according to the measurement control indication received by the receiving unit 1321.

The specific implementation process of the measurement system using the method of this embodiment is basically similar to the description of the method in this embodiment, and details are not described herein again.

In this embodiment, the reporting of the cell measurement and/or the measurement is performed according to the measurement control indication by performing a measurement control indication of whether the GAN cell is measured, and/or whether the measurement is performed on the GAN cell, so that After the measurement control is introduced, cell reselection and handover between the GAN cell and the GERAN/UTRAN cell can be performed normally.

Example eight

Consider the case where the terminal must apply the priority mechanism in GERAN/UTRAN. When the phone is turned on, it may be because there is no The GERAN/UTRAN coverage is found and directly resides in the GAN cell. After the terminal discovers the GERAN/UTRAN coverage, the terminal needs to reselect to the GERAN/UTRAN cell. However, since the priority information is not obtained before, the terminal cannot adopt the priority mechanism. Selected to the GERAN/UTRAN cell. In this case the GAN network should provide GERAN/UTRAN priority information to the terminal. For example, in the registration or registration update process, the GANC may send the priority information to the terminal; or when the terminal is in the state where the GAN has the service, the priority information is sent to the terminal through the proprietary connection; thereby enabling the terminal to comply with the priority mechanism. Conduct mobility management.

When the terminal is about to register to the GAN network or is in a state of being registered but has no service, the terminal may indicate the priority to the network through a mobility management request message such as a registration request or a registration update request, and after receiving the request message, the GANC is in the Subsequent mobility management response messages, such as registration/registration updates, carry priority information to the terminal, and the terminal performs mobility management such as cell reselection based on the priority information.

Or when the terminal is in a state of being in service, that is, the terminal has a dedicated connection with the core network through the GANC, the core network may send a signing information indication to the GANC, and the GANC receives the signing information indication sent by the core network, and according to the signing information indication And/or the local policy sets the priority information of the terminal, and then sends the priority information to the terminal through a dedicated connection.

When the terminal has obtained the priority information in the GERAN/UTRAN mode and then reselects/switches to the GAN cell, the terminal can use the priority information for subsequent mobility management, and directly prioritizes the mobility management request message. The level information is notified to the GANC, and the GANC can provide an appropriate GAN mode based on the priority information. For example, when the terminal obtains the priority of the UTRAN in the GERAN/UTRAN mode, the priority of the UTRAN is higher than that of the GERAN. When the terminal registers with the GANC, the terminal notifies the GANC of the priority information by using the registration request message, and the GANC obtains the priority information and considers that the corresponding information should be corresponding. The GAN Iu mode is provided to be consistent with the higher priority of the UTRAN, so the GANC will use the GAN Iu mode as the mode in which the terminal registers with the GAN.

Correspondingly, referring to FIG. 14, corresponding to the method of the embodiment, a mobility management system is further provided, including a universal access network controller 141 and a terminal 142:

The terminal 142 includes:

The sending unit 1421 is configured to send the indication information supporting the priority to the universal access network controller 141. The receiving unit 1422 is configured to receive the priority information sent by the universal access network controller 141.

The mobility management unit 1423 is configured to perform mobility management according to the priority information received by the receiving unit 1422. The mobility management unit 1423 specifically includes:

a first selection subunit, configured to: when the terminal switches from a universal access network to a non-universal access network, the terminal root Selecting a mode of the non-generic access network according to the priority information;

And a second selection subunit, configured to: when the terminal switches from the non-universal access network to the universal access network, the terminal selects a mode of the corresponding universal access network according to the non-universal access network with high priority.

The universal access network controller 141 includes:

The first receiving unit 1411 is configured to receive indication information of the support priority sent by the terminal 142.

The sending unit 1412 is configured to send the priority information to the terminal 142 after receiving the indication indicating the priority of the receiving unit 1411.

Optionally, the universal access network controller 141 may further include:

The second receiving unit 1413 is configured to receive an indication of the subscription information sent by the core network.

The priority determining unit 1414 is configured to determine the priority information according to the subscription information indication and/or the local policy received by the second receiving unit 1413.

The specific implementation process of the mobility management system that is applied to the method in this embodiment is substantially similar to the description of the method in this embodiment, and details are not described herein again.

In this embodiment, the priority information is sent by the universal access network controller, and then mobility management is performed according to the received priority information, so that cell reselection and handover between the GAN cell and the GERAN/UTRAN cell after the priority mechanism is introduced Can be done normally.

Example nine

Referring to FIG. 15, the present invention also provides a mobility management system, including:

The terminal 151 is configured to send indication information to the universal access network controller 152.

The universal access network controller 152 is configured to receive the indication information sent by the terminal 151, and select a mode of the universal access network according to the indication information.

The universal access network controller 152 specifically includes:

The receiving unit 1521 is configured to receive the indication information sent by the terminal 151.

The selecting unit 1522 is configured to select a mode of the universal access network according to the indication information. The indication information may include reference network type information indicating that the network to which the terminal is currently attached is an enhanced data rate access network GERAN or a terrestrial radio access network UTRAN, and/or a network indicating that the terminal is preferably used. The terminal is an Iu mode or an A/Gb mode, preferably a universal access network mode information.

Optionally, the universal access network controller 152 may further include:

a first management unit 1523, configured to: after selecting a mode of the universal access network according to the indication information, When the terminal is not registered, registering the terminal in the selected mode, and notifying the terminal;

Optionally, the universal access network controller 152 may further include:

The second management unit 1524 is configured to, after selecting a mode of the universal access network according to the indication information, and when the terminal is registered, transfer the terminal to the selected mode.

The selecting unit 1522 may include:

a first selection sub-unit 1522a, configured to select, according to the terminal preferred universal access network mode information, a terminal preferred universal access network mode supported by the universal access network controller 152;

The selecting unit 1522 may further include:

The second selecting sub-unit 1522b is configured to redirect the terminal 151 to another universal access network controller and select the universal access network control if the universal access network controller 152 does not support the preferred mode. The universal access network mode supported by the device 152 or the access request of the terminal 151 is rejected.

The selecting unit 1522 may further include:

The third selection sub-unit 1522c is configured to select an A/Gb mode when the reference network of the terminal 151 is a GERAN network; and/or, when the reference network of the terminal 151 is a UTRAN network, select an Iu mode.

The selecting unit 1522 may further include:

The fourth selection sub-unit 1522d is configured to: when the reference network of the terminal 151 is a GERAN network, and the universal access network controller 152 does not support the A/Gb mode, select the universal access network controller 152 to support Universal access network mode, redirecting the terminal 151 to other general access network controllers or rejecting access requests of the terminal; and/or when the reference network of the terminal 151 is a UTRAN network, and When the universal access network controller 152 does not support the Iu mode, the universal access network mode supported by the universal access network controller 152 is selected, the terminal 151 is redirected to other universal access network controllers, or the device is rejected. The access request of the terminal 151 is described.

In the embodiment of the present invention, when the GAN network and the EGAN network coexist, that is, the GANC can simultaneously support the A/Gb mode and the Iu mode, and the dual mode terminal can simultaneously support the A/Gb and Iu modes, when initiating The GERAN/UTRAN to GAN handover, the terminal may register according to the network in which it is located, preferably completes the handover, or completes the handover according to other judgments, or selects the GAN mode that it wishes to prefer to register and switch according to other judgments.

In addition, in the embodiment of the present invention, when accepting the registration request of the terminal, the GAN uses different GAN cell identifiers to distinguish different modes of the same GAN cell, so that mobility management such as handover can be performed normally.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases the former is more Good implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for making a A computer device (which may be a personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention. The above disclosure is only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.

Claims

Claim

A method for mobility management, characterized in that it comprises:

2. The method of mobility management according to claim 1, wherein the reference network type information comprises a network indicating that the terminal is currently attached to the enhanced data rate access network GERAN or the terrestrial radio access network UTRAN. Information; the terminal preferably universal access network mode information includes information indicating that the network preferably used by the terminal is an Iu mode or an A/Gb mode.

The method of mobility management according to claim 2, wherein the reference network type information comprises location information and/or service status information of the current attached network of the terminal.

The method of mobility management according to claim 2, wherein, when the indication information comprises the terminal, the universal access network mode information is selected, and the mode of selecting the universal access network according to the indication information comprises:

If the universal access network controller supports the terminal to prefer the universal access network mode, the terminal is selected to prefer the universal access network mode.

5. The method of mobility management according to claim 4, wherein the method further comprises:

If the universal access network controller does not support the terminal preferred universal access network mode, redirect the terminal to another universal access network controller, and select a universal connection supported by the universal access network controller. The mode of entering the network or rejecting the access request of the terminal.

The method of mobility management according to claim 2, wherein when the indication information includes the reference network type information of the terminal, selecting a mode of the universal access network according to the indication information comprises:

When the reference network of the terminal is a GERAN network, the universal access network controller adopts an A/Gb mode; or

When the reference network of the terminal is a UTRAN network, the universal access network controller adopts an Iu mode.

7. The method of mobility management according to claim 6, further comprising:

When the reference network of the terminal is a GERAN network, if the universal access network controller does not support the A/Gb mode, selecting a mode of the universal access network supported by the universal access network controller, Redirecting the terminal to another general access network controller or rejecting the access request of the terminal; or

When the reference network of the terminal is a UTRAN network, if the universal access network controller does not support the Iu mode, And selecting a mode of the universal access network supported by the universal access network controller, redirecting the terminal to another universal access network controller or rejecting the access request of the terminal.

The method of mobility management according to any one of claims 1 to 7, wherein after the mode of the universal access network is selected according to the indication information, the method further includes:

If the terminal is not registered, the universal access network controller registers the terminal in the selected mode and notifies the terminal; or

If the terminal is registered, the universal access network controller transfers the terminal to the selected mode.

9. The mobility management method according to claim 8, wherein if the terminal is registered, the universal access network controller transfers the terminal to the selected mode in a process Next:

Reselection, registration, registration update or handover of a cell or network.

10. A method of mobility management, characterized in that it comprises:

The same general access network GAN cell in different modes is configured with a GAN cell identifier corresponding to the mode; the universal access network controller of the GAN network to which the GAN cell belongs receives the GAN cell identifier when accepting the terminal registration Sent to the terminal;

11. A mobility management system, comprising:

The terminal is configured to send indication information to the universal access network controller; the indication information includes reference network type information and/or terminal preferred universal access network mode information.

12. The mobility management system according to claim 11, wherein the reference network type information comprises a network indicating that the terminal is currently attached to the enhanced data rate access network GERAN or the terrestrial radio access network UTRAN. Information: The terminal preferably the universal access network mode information includes information indicating that the network preferably used by the terminal is an Iu mode or an A/Gb mode.

13. A universal access network controller, comprising:

The universal access network controller according to claim 13, wherein the indication information is used to refer to The network to which the terminal is currently attached is the reference network type information of the enhanced data rate access network GERAN or the terrestrial radio access network UTRAN, and/or the network used to indicate that the terminal is preferably used is the Iu mode or the A/ The terminal in the Gb mode preferably uses the universal access network mode information.

The universal access network controller according to claim 14, wherein the selecting unit comprises: a first selecting subunit, configured to select the universal interface according to the terminal preferred universal access network mode information of the terminal The terminal supported by the network access controller is preferably a universal access network mode.

The universal access network controller according to claim 15, wherein the selecting unit comprises: a second selecting subunit, if the universal access network controller does not support the preferred mode, And redirecting the terminal to another universal access network controller, selecting a universal access network mode supported by the universal access network controller, or rejecting an access request of the terminal.

The universal access network controller according to claim 14, wherein the selecting unit comprises: a third selecting subunit, configured to: when the reference network of the terminal is a GERAN network, select A/Gb Mode; and

Or, when the reference network of the terminal is a UTRAN network, the Iu mode is selected.

The universal access network controller according to claim 17, wherein the selecting unit comprises: a fourth selecting subunit, configured to: when the reference network of the terminal is a GERAN network, and the universal connection When the network access controller does not support the A/Gb mode, select a mode of the universal access network supported by the universal access network controller, redirect the terminal to another universal access network controller, or reject the terminal. Access request; and/or

When the reference network of the terminal is a UTRAN network, and the universal access network controller does not support the Iu mode, select a mode of the universal access network supported by the universal access network controller, and focus the terminal Directed to other general access network controllers or denied access requests for the terminal.

The universal access network controller according to any one of claims 13 to 18, further comprising: a first management unit, configured to: after selecting a mode of the universal access network according to the indication information And when the terminal is not registered, registering the terminal in the selected mode, and notifying the terminal; and/or

And a second management unit, configured to: after the mode of the universal access network is selected according to the indication information, and the terminal is registered, transfer the terminal to the selected mode.

20. A mobility management method, comprising:

The method according to claim 20, wherein the terminal performs mobility management according to the priority information, which specifically includes:

When the terminal switches from the universal access network to the non-universal access network, the terminal selects a mode of the non-generic access network according to the priority information;

When the terminal switches from the non-universal access network to the universal access network, the terminal selects a mode of the corresponding universal access network according to the non-universal access network with a high priority.

The method according to claim 20, after the terminal sends the indication information supporting the priority to the universal access network controller, before receiving the priority information sent by the universal access network controller, The method further includes: receiving, by the universal access network controller, an indication of a subscription information sent by the core network;

The priority information is determined according to the contract information indication and/or the local policy.

23. A terminal, comprising:

The terminal according to claim 23, wherein the mobility management unit comprises:

a first selecting subunit, configured to: when the terminal switches from a universal access network to a non-generic access network, the terminal selects a mode of the non-generic access network according to the priority information;

A system for mobility management, comprising: the terminal and the universal access network controller according to claim 24;

The universal access network controller is configured to receive indication information of a support priority sent by the terminal, and send priority information to the terminal.

The mobility management system according to claim 25, wherein the universal access network controller further comprises: receiving, by the core network, a subscription information indication, indicating and/or local according to the subscription information. The policy determines the priority information.

27. A method of measuring, comprising:

Receiving, by the network side, a measurement control indication, where the measurement control indication includes an indication of whether to perform measurement on the GAN cell, and/or whether to perform measurement on the GAN cell; The reporting of the cell measurement and/or measurement is performed according to the measurement control indication.

28. A terminal, comprising:

And a measuring unit, configured to perform reporting of the cell measurement and/or measurement according to the measurement control indication received by the receiving unit.

A measurement system, comprising: the terminal and the network side according to claim 28, wherein the network side is configured to send a measurement control indication, where the measurement control indication includes whether to perform measurement on a GAN cell, and / or an indication of whether or not to report the measurement of the GAN cell.