WO2010081437A1 - 切换控制的实现方法及相关设备 - Google Patents
切换控制的实现方法及相关设备 Download PDFInfo
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- WO2010081437A1 WO2010081437A1 PCT/CN2010/070258 CN2010070258W WO2010081437A1 WO 2010081437 A1 WO2010081437 A1 WO 2010081437A1 CN 2010070258 W CN2010070258 W CN 2010070258W WO 2010081437 A1 WO2010081437 A1 WO 2010081437A1
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- Prior art keywords
- base station
- target
- csg
- handover
- target cell
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Classifications
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- 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
- H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a method for implementing handover control, a related device, and a communication system. Background technique
- the closed mode only allows some specific subscription users to access and initiate services; the non-closed mode can be divided into The open mode and the hybrid mode, where the open mode can be regarded as the same access mode as the public cell, that is, the user who does not subscribe to the private network is allowed to access and initiate the service, and the hybrid mode means that the private network can be closed at the same time.
- Mode and open mode are used, that is, some of the specific subscription users are used as the closed mode, and other users are used as the open mode, but the specific subscription users may have more favorable charging strategies and higher service quality assurance than other users. .
- the communication system can be divided into two parts: the access network and the core network.
- the core network is mainly responsible for terminal-to-network mobility management, session management, security management, policy and charging management, etc.
- the access network is mainly responsible for wireless resource management.
- the base station located in the access network communicates with the terminal through the air interface.
- the base station can be classified according to factors such as the signal coverage area, the number of users that can be accommodated, and the deployment scenario. For example, the base station can be classified into: a macro base station, a micro base station, a home base station, and the like.
- Home base stations are usually owned by individuals or groups and are typically deployed as dedicated resources for use in homes, groups, companies, or schools to provide services to specific users.
- the home base station can be controlled by a closed user group (CSG, Closed Subscriber Group) Family members access the CSG cell.
- CSG Closed Subscriber Group
- the subscriber of the CSG can initiate a service by accessing the network through any closed base station serving the CSG; the user not belonging to the CSG does not have the right to initiate a service through the closed mode base station serving the CSG.
- Different CSGs can be distinguished by different CSG IDs (CSG IDs), and the CSG list allowed by the user is used to record the CSG ID of the cell that the user is allowed to access.
- MME Mobility Management Entity
- the Mobility Management Entity (MME) of the core network can store a list of CSGs that the user is allowed to access.
- the terminal may be mis-switched, causing the operator's charging loss; and if the terminal is handed over to the CSG cell that it does not have access to, the terminal initiates secondary service in the CSG cell. A larger impact on the user experience. Summary of the invention
- An embodiment of the present invention provides a method for implementing handover control, a related device, and a communication system.
- the MME performs access control on a cell handover of a terminal according to a CSG access control rule, and can switch the terminal to a target that the user has access to. Community.
- the embodiment of the present invention provides a method for implementing handover control, including: receiving a first handover message, where the first handover message carries a terminal ready to switch to An identifier of the target cell, the target cell is a closed subscriber group CSG cell; acquiring an access mode of the target cell and/or a closed subscriber group identifier CSG ID information stored by the target base station or the target base station gateway; according to the target cell The access mode and/or the CSG ID are used to perform access control on the terminal.
- the embodiment of the present invention further provides a method for implementing handover control, including: receiving a handover request message, where the handover request message carries an access mode and/or a CSG ID of a target cell to which the terminal is ready to handover, the target The cell is a CSG cell; whether the access mode and/or the CSG ID of the target cell is the same as the access mode and/or the CSG ID of the target cell stored by the target base station or the target base station gateway; if different, sending to the MME
- the handover failure message carries the indication information that the handover fails.
- the embodiment of the present invention further provides a method for implementing handover control, including: receiving a location area list update request message, where the location area list update request message is sent by the terminal after being synchronized to the target cell, and the location area list is updated.
- the request message carries an access mode and/or a CSG ID of the target cell, where the target cell is a CSG cell, and the request message is carried according to the location area list update request message. The information carried is used to perform access control on the terminal.
- the embodiment of the present invention further provides a method for implementing handover control, including: receiving an access control request message sent by a base station or a base station gateway, where the access control request message carries an identifier of a target cell to which the terminal is ready to handover, And the access mode of the target cell and/or the closed user group identifier CSG ID, where the target cell is a CSG cell under the current cell base station; if the access mode of the target cell is a closed mode, detecting the Whether the CSG list that the terminal allows access has a record that matches the CSG ID of the target cell; if yes, sends an access control request response message to the base station or the base station gateway, where the access control request response message carries There are instructions to allow switching.
- the embodiment of the present invention further provides a mobility management entity, including: a receiving unit, configured to receive a first handover message, where the first handover message carries an identifier of a target cell to which the terminal is ready to handover, and the target cell a CSG cell; an acquiring unit, configured to acquire an access mode and/or CSG ID information of the target cell that is stored by the target base station or the target base station gateway; and an access control unit, configured to use, according to the access mode of the target cell, / or CSG ID to access control of the terminal.
- a mobility management entity including: a receiving unit, configured to receive a first handover message, where the first handover message carries an identifier of a target cell to which the terminal is ready to handover, and the target cell a CSG cell; an acquiring unit, configured to acquire an access mode and/or CSG ID information of the target cell that is stored by the target base station or the target base station gateway; and an access control unit, configured to use, according to the access mode of the target
- the embodiment of the present invention further provides an access network device, including: a receiving unit, configured to receive a handover request message, where the handover request message carries an access mode and/or a CSG ID of a target cell to which the terminal is ready to handover.
- the target cell is a CSG cell
- the comparing unit is configured to compare an access mode and/or a CSG ID of the target cell with an access mode and/or a CSG ID of the target cell stored by the target base station or the target base station gateway.
- the sending unit sends a handover failure message to the MME when the comparison unit is different, and the handover failure message carries the indication information of the handover failure.
- the embodiment of the present invention further provides a mobility management entity, including: a receiving unit, configured to receive a location area list update request message, where the location area list update request message is sent by the terminal after being synchronized to the target cell, where The location area list update request message carries the access mode and/or the CSG ID of the target cell, where the target cell is a CSG cell, and the access control unit is configured to update the information carried by the request message according to the location area list.
- the terminal performs access control.
- the embodiment of the present invention further provides a mobility management entity, including: a receiving unit, configured to receive an access control request message sent by a base station or a base station gateway, where the access control request message carries a target that the terminal is ready to switch to An identifier of the cell, and an access mode and/or a CSG ID of the target cell, where the target cell is a CSG cell under the current cell base station, and a detecting unit, configured to: when the access mode of the target cell is found to be a closed mode , detecting the CSG column that the terminal is allowed to access.
- a receiving unit configured to receive an access control request message sent by a base station or a base station gateway, where the access control request message carries a target that the terminal is ready to switch to An identifier of the cell, and an access mode and/or a CSG ID of the target cell, where the target cell is a CSG cell under the current cell base station
- a detecting unit configured to: when the access mode of the target cell is found to be
- a sending unit configured to send an access control request response message to the base station or the base station gateway when the detecting unit detects a matching record, where
- the access control request response message carries indication information that allows handover.
- the embodiment of the present invention further provides a communication system, including: the mobility management entity as described in the foregoing embodiment, or the access network device as described in the foregoing embodiment.
- the technical solution adopted by the embodiment of the present invention can bring the following beneficial effects:
- the MME performs access control on the terminal according to the access mode and/or CSG ID of the target cell, which can be as effective as possible.
- the terminal can be switched to the target cell to which the user has access, and the charging loss of the operator can be avoided as much as possible; after switching to the target cell, the terminal can initiate secondary service in the target cell.
- FIG. 1 is a schematic flowchart of a method for implementing handover control according to Embodiment 1 of the present invention
- FIG. 2 is a schematic flowchart of a method for implementing handover control according to Embodiment 2 of the present invention
- FIG. 4 is a schematic flowchart of a method for implementing handover control according to Embodiment 4 of the present invention
- FIG. 5 is a schematic flowchart of a method for implementing handover control according to Embodiment 5 of the present invention
- 6 is a schematic flowchart of a method for implementing handover control according to Embodiment 6 of the present invention
- FIG. 7 is a schematic flowchart of a method for implementing handover control according to Embodiment 7 of the present invention
- FIG. 9 is a schematic diagram of a mobility management entity according to Embodiment 9 of the present invention.
- FIG. 10 is a schematic diagram of a mobility management entity according to Embodiment 10 of the present invention.
- FIG. 11 is a schematic diagram of an access network device according to Embodiment 11 of the present invention. detailed description
- the embodiment of the present invention provides a method for implementing handover control, a related device, and a communication system, for the problem that the access authority is not controlled during the terminal handover process, and the handover may be invalid.
- the MME When performing cell handover, the MME performs access control on the terminal handover according to the CSG access control rule, and can switch the terminal to the target cell to which it has access as efficiently as possible.
- the source base station involved in the following embodiments may be: a home base station or a normal base station; the target base station may be: a home base station; and the target cell may be a CSG cell.
- the source MME and the target MME are different entities.
- the source MME and the target MME are the same entity, and messages sent between the source MME and the target MME are omitted.
- the handover request message related to the following embodiments may be: The Handover Required message, the Forward Relocation Request message may be: The Forward Relocation Request message, and the Forward Relocation Response message may be: a Forward Relocation Response message, and the handover request message may be a Handover
- the request, the handover request acknowledgement message may be: Handover Request Acknowledge message, handover preparation failure may be: Handover Preparation Failure message, handover command message may be: Handover Command message, handover request acknowledgement message may be: Handover Confirm message, handover failure
- the message may be: a Handover Failure message, a relocation cancellation request message may be: a Relocation Cancel Request message, and a Relocation Cancel Response message may be: a Relocation Cancel Response message.
- the access control information involved in the following embodiments may be: a CSG ID of a target cell, and/or an access mode of a target cell.
- FIG. 1 is a schematic flowchart of a method for implementing handover control according to Embodiment 1 of the present invention, which may specifically include:
- Step 110 Receive a first handover message, where the first handover message carries an identifier of a target cell to which the terminal is to be handed over, and the target cell is a CSG cell.
- the first handover message may be a handover requirement message or a forwarding relocation request message.
- Step 120 Acquire an access mode and/or CSG ID information of the target cell stored by the target base station or the target base station gateway.
- the manner in which the MME obtains the access mode and/or the CSG ID information of the target cell stored by the target base station or the target base station gateway may be arbitrary, for example, may be obtained through a command in an existing handover procedure, or may be obtained through a dedicated message.
- Step 130 Connect the terminal according to an access mode and/or a CSG ID of the target cell. Into control.
- the MME performs access control on the terminal according to the access mode and/or CSG ID of the target cell according to the CSG access control rule. If the terminal has access to the target cell, it is allowed to switch; if the terminal does not have access to the target cell, the handover process can be terminated.
- the MME when the terminal performs cell handover, the MME performs access control on the terminal according to the access mode and/or CSG ID of the target cell stored by the target base station or the target base station gateway, which can be more effective.
- the terminal switches to the target cell to which it has access, and tries to avoid causing the operator's charging loss. After switching to the target cell, the terminal can initiate secondary service in the target cell.
- Embodiment 2
- FIG. 2 is a schematic flowchart of a method for implementing handover control according to Embodiment 2 of the present invention, which may specifically include:
- Step 210 Receive a handover request message, where the handover request message carries an access mode and/or a CSG ID of a target cell to which the terminal is ready to handover, where the target cell is a CSG cell;
- the target base station or the target base station gateway may receive the handover request message sent by the MME.
- Step 220 Compare, whether the access mode and/or the CSG ID of the target cell is the same as the access mode and/or CSG ID of the target cell stored by the target base station or the target base station gateway;
- Step 230 If not, send a handover failure message to the MME, where the handover failure message carries indication information that the handover fails.
- the target base station or the target base station gateway performs authenticity verification on the access control information reported by the source base station, the source base station gateway, or the terminal, and can switch the terminal as efficiently as possible.
- the carrier's charging loss is avoided as much as possible; after switching to the target cell, the terminal can initiate secondary service in the target cell.
- This embodiment is an integrated embodiment.
- the UE actively reports the access mode and/or CSG ID of the target cell by using the measurement report, and the access mode and/or CSG ID of the target cell reported by the MME ⁇ UE is used for the UE. Perform access control.
- FIG. 3 is a schematic flowchart of a method for implementing handover control according to Embodiment 3 of the present invention, which may specifically include:
- Step 301 The UE reports a measurement report to the source base station.
- the UE When the measurement report reporting condition is met, the UE sends a measurement report to the source base station, and the measurement report includes
- the measurement result may include: identification information of the target cell to be tested, various parameter values for measuring signal quality, and the like.
- the UE may be a periodic reporting measurement report, and/or reported when the current cell signal quality is significantly degraded, and is not limited thereto.
- the identifier of the target cell may be: a physical cell identity (Physical Cell Identity), a global cell identity (Global Cell Identity), or a cell identity (Cell Identity) of the target cell.
- the target cell is a CSG cell, and the measurement result may further include: access control information, such as a CSG ID of the target cell and/or an access mode of the target cell, and the UE may obtain the foregoing access control information from the cell broadcast message.
- Step 302 The source base station sends a handover request message to the source MME.
- the foregoing handover requirement message may carry the following information: a handover type (for example, a normal cell to a CSG cell, or a CSG cell to a CSG cell, etc.), a handover reason (for example, resource optimization, load balancing, etc.), a target identifier, and a source base station to
- a handover type for example, a normal cell to a CSG cell, or a CSG cell to a CSG cell, etc.
- a handover reason for example, resource optimization, load balancing, etc.
- a target identifier for example, resource optimization, load balancing, etc.
- the target base station transparently transmits the access mode and/or CSG ID of the target cell reported by the UE.
- the target identifier may be a target base station identifier
- the transparent transmission container may include: a target cell identifier and the like.
- Step 303 The source MME determines whether the UE has the right to access the target cell.
- the source MME stores the mobility management context of the UE, and the UE mobility management context includes the CSG list that the UE allows to access. It can be considered that the CSG cells corresponding to the CSG IDs recorded in the CSG list are allowed.
- the UE accesses and initiates a service.
- the source MME may further check whether the allowed access CSG list of the UE matches the CSG ID of the target cell reported by the UE, if the access mode of the target cell reported by the UE is detected to be in the closed mode.
- the record, if any, can be considered that the UE has access to the target cell, and can continue the handover process; if not, the UE can be considered to have no right to access the target cell, and the source MME can directly send a handover preparation failure message to the source base station,
- the handover preparation failure message may carry information such as the reason for the handover failure, and end the handover process.
- the source base station may reselect the target cell for the UE, and start the handover process again.
- the normal MME process is performed, that is, the same handover procedure as that for switching to the normal cell is performed.
- the foregoing handover request message may not carry the access mode and the CSG ID information of the target cell, or The access mode information of the target cell is only carried, and is not limited thereto.
- the source MME may determine that the target cell is in an open mode by using a default manner.
- step 304 If the MME is not required to be relocated, the source MME and the target MME are the same entity, and the interaction message between the source MME and the target MME is omitted, and the process proceeds to step 305.
- Step 304 The source MME sends a forwarding relocation request message to the target MME.
- the foregoing forwarding relocation request message may carry the following information: a UE mobility management context, an access mode and/or a CSG ID of the target cell, a source base station to the target base station transparent transmission container, a target base station identifier, and the like.
- the source MME may not determine whether the UE has access to the target cell; but in this step, the target MME may determine according to the CSG access control rule. Whether the terminal has access to the target cell, if yes, the handover process is continued; if not, the UE is not allowed to access the target cell, and the source base station may be notified of the reason for the handover failure, and the handover process may be terminated.
- Step 305 The target MME sends a handover request message to the target base station.
- the foregoing handover request message may include: a handover type, a handover reason, a bearer list to be established, a source base station to a target base station transparent transmission container, an access mode of the target cell, and/or a CSG ID.
- Step 306 The target base station determines whether the UE meets the handover condition.
- the target base station can further verify the authenticity of the access mode and/or the CSG ID of the target cell reported by the terminal.
- the target base station stores the access mode and CSG ID of the target cell, and the target base station may first compare the received access mode and/or CSG ID of the target cell with the corresponding information stored by itself.
- the target base station gateway may also identify the authenticity of the access control information reported by the UE.
- the target base station may further determine whether the handover condition is met according to the handover preparation rule (for example, whether the current resource is sufficient, etc.), if the handover condition is not met, proceed to step 307; If yes, go to step 310.
- the handover preparation rule for example, whether the current resource is sufficient, etc.
- Step 307 The target base station sends a handover failure message to the target MME. If the target base station finds that the access control information reported by the UE is not true, or the current UE does not meet the handover condition, the target base station may send a handover failure message to the target MME, where the handover failure message may carry the reason for the handover failure, and the failure reason may be the UE. The reported access control information is not true, or the resources are insufficient.
- step 308 If the MME is not required to be relocated, the source MME and the target MME are the same entity, and the interaction message between the source MME and the target MME is omitted, and the process proceeds to step 309.
- the forward remapping response message may carry the reason for the handover failure, and the process proceeds to step 309.
- Step 309 The source MME sends a handover preparation failure message to the source base station.
- the reason for the handover failure may be carried in the handover preparation failure message, and the handover process is ended.
- the source base station may reselect the target cell for the UE, and start the handover process again.
- Step 310 The target base station sends a handover request acknowledgement message to the target MME.
- the target base station prepares a corresponding resource, and may send a handover request acknowledgement message to the target MME, where the handover request acknowledgement message may include the following information: handover type, successfully established bearer list, failed to be successfully established. Host list, etc.
- step 311 If the MME is not relocated, the source MME and the target MME are the same entity, and the interaction message between the source MME and the target MME is omitted.
- Step 311 The target MME sends a forwarding relocation response message to the source MME.
- the forward relocation response message may include the following information: the successfully established bearer list, the target base station to the source base station transparent container, and the like.
- Step 312 The source MME sends a handover command message to the source base station.
- Step 313 The source base station sends a handover command message to the UE.
- Step 314 The source network delivers context information and data to the target network, and the target network updates the bearer.
- Step 315 The UE synchronizes to the target cell, and sends a handover confirmation message to the target base station.
- the UE may also After the location area update is initiated, for example, the TAU (Tracking Area Update) e UE successfully switches to the target cell, the source network may delete the context and temporary bearer of the UE.
- the MME performs access control on the terminal according to the access mode and/or the CSG ID of the target cell, and can switch the terminal to the target that the user has access to.
- the cell in turn, relatively avoids the operator's charging loss; after switching to the target cell, the terminal can initiate secondary service in the target cell.
- the target base station or the target base station gateway verifies the authenticity of the access control information reported by the terminal, further ensuring the validity of the handover; the change of the handover procedure is small, and the implementation is relatively easy.
- the MME acquires an access mode and/or a CSG ID of a target cell stored by the target base station or the target base station gateway, and according to the acquired access mode and/or CSG of the target cell.
- the ID controls the access of the UE.
- FIG. 4 is a schematic flowchart of a method for implementing handover control according to Embodiment 4 of the present invention, which may specifically include:
- Step 401 The UE reports a measurement report to the source base station.
- the UE When the measurement report reporting condition is met, the UE sends a measurement report to the source base station, where the measurement report includes the measurement result, and the measurement result may include: identifier information of the target cell to be tested, various parameter values for measuring signal quality, and the like.
- Step 402 The source base station sends a handover request message to the source MME.
- the foregoing handover requirement message may carry the following information: handover type, handover reason, target identifier, source base station to target base station transparent transmission container, and selected location area identifier.
- the target identifier may be a target base station identifier
- the transparent transmission container may include: information such as an identifier of the target cell.
- Step 403 The source MME sends a forwarding relocation request message to the target MME.
- the foregoing forwarding relocation request message may carry the following information: a UE mobility management context, a source base station to a target base station transparent transmission container, a target base station identifier, and the like.
- Step 404 The target MME sends a handover request message to the target base station or the target base station gateway.
- the handover request message may include: a handover type, a handover reason, and a bearer column to be established. Table, source base station to target base station transparent transmission container, and the like.
- Step 405 The target base station determines whether the UE meets the handover condition.
- the target base station determines whether the handover condition is met according to the handover preparation rule (for example, whether the current resource is sufficient, etc.), if the handover condition is not satisfied, proceeds to step 406; if yes, proceeds to step 408.
- the handover preparation rule for example, whether the current resource is sufficient, etc.
- Step 406 The target base station sends a handover failure message to the target MME.
- the target base station may send a handover failure message to the target MME, where the handover failure message may carry the reason for the handover failure, and the failure reason may be insufficient resources or the like.
- step 407 If the MME is not relocated, the source MME and the target MME are the same entity, and the interaction message between the source MME and the target MME is omitted, and the process proceeds to step 411.
- Step 407 The target MME sends a forwarding relocation response message to the source MME.
- the forwarding remapping response message may carry the reason for the handover failure, and the process proceeds to step 411.
- Step 408 The target base station sends a handover request acknowledgement message to the target MME.
- the target base station prepares a corresponding resource, and may send a handover request acknowledgement message to the target MME, where the handover request acknowledgement message may include the following information: handover type, successfully established bearer list, failed to be successfully established. Bearer list, access mode of the target cell, and/or CSG ID, etc.
- the process proceeds to step 409. If the MME is not relocated, the source MME and the target MME are the same entity, and the interaction message between the source MME and the target MME is omitted.
- Step 409 The target MME sends a forwarding relocation response message to the source MME.
- Step 410 The source MME determines whether the UE has the right to access the target cell.
- the source MME may further detect, according to the CSG access control rule, whether the access mode of the received target cell is a closed mode, and further detecting whether the CSG list of the UE matches the CSG ID of the received target cell. If not, the UE can be considered as having no right to access the target cell, and the process proceeds to step 411. If yes, the UE can be considered to have access to the target cell, and the process proceeds to step 412.
- the process proceeds to step 412.
- the target MME may determine, according to the CSG access control rule, whether the UE has the right to access the target cell, and may forward the relocation response message by using the relocation response message. Notify the source MME.
- Step 411 The source MME sends a handover preparation failure message to the source base station.
- the reason for the handover failure may be carried in the handover preparation failure message, and the handover process is ended.
- the source base station may reselect the target cell for the UE, and start the handover process again.
- Step 412 The source MME sends a handover command message to the source base station.
- Step 413 The source base station sends a handover command message to the UE.
- Step 414 The source network delivers context information and data to the target network, and the target network updates the bearer.
- Step 415 The UE synchronizes to the target cell, and sends a handover confirmation message to the target base station.
- the access control information used by the MME for performing access control is stored by the target base station or the target base station gateway, and the access control information is authentic and effective, thereby ensuring the validity of the handover; the handover process is less changed, and the implementation is easier. .
- Embodiment 5
- the MME obtains an access mode and/or a CSG ID of the target cell from the target base station or the target base station gateway by using a dedicated message, and is small according to the acquired target.
- the access mode and/or CSG ID of the zone is used for access control of the UE.
- FIG. 5 is a schematic flowchart of a method for implementing handover control according to Embodiment 5 of the present invention, which may specifically include:
- Step 501 The UE reports a measurement report to the source base station.
- the UE When the measurement report reporting condition is met, the UE sends a measurement report to the source base station, where the measurement report includes the measurement result, and the measurement result may include: identifier information of the target cell to be tested, various parameter values for measuring signal quality, and the like.
- the foregoing handover requirement message may carry the following information: handover type, handover reason, target identifier, source base station to target base station transparent transmission container, and selected location area identifier.
- the target identifier may be a target base station identifier
- the transparent transmission container may include: information such as an identifier of the target cell.
- Step 503 The source MME sends an access control information request message to the target MME.
- the foregoing access control information request message may carry the following information: a source base station to a target base station transparent container, a target base station identifier, and the like.
- the source MME may first determine whether the access control information needs to be acquired, and if necessary, send an access control information request message to the target MME; if not, the handover may be performed according to the process of switching to the normal cell. For example, the source MME may determine, according to the handover type information carried in the foregoing handover requirement message, whether the access control information needs to be acquired, and if the handover type indicates that the handover to the CSG cell is performed, the access control information needs to be acquired; Switching to a normal cell does not require obtaining access control information.
- the access control information may be an access mode and/or a CSG ID of the target cell.
- Step 504 The target MME sends an access control information request to the target base station or the target base station gateway.
- step 506 if ⁇ is relocated, the process proceeds to step 506; if relocation ⁇ is not required, the source ⁇ and the target ⁇ are the same entity, and the interaction message of the source ⁇ and the target ⁇ is omitted, and the process proceeds to step 507.
- Step 506 The target sends an access control information response message to the source device.
- Step 507 The source ⁇ determines whether the UE has the right to access the target cell.
- the process proceeds to step 508.
- Step 508 The source MME sends a forwarding relocation request message to the target MME.
- Step 509 The target MME sends a handover request message to the target base station.
- the foregoing handover request message may include: a handover type, a handover reason, a bearer list to be established, a source base station to a target base station transparent transmission container, and the like.
- the target MME may obtain the access control information from the target base station or the target base station gateway, and determine the access authority of the UE according to the CSG access control rule according to the obtained access control information.
- the target MME determines the access authority of the UE, in step 503, the source MME sends a forwarding relocation request message to the target MME; the target MME sends the access control information to the target base station or the target base station gateway.
- the request message the target MME receives the access control information response message that is sent by the target base station or the target base station gateway and carries the access control information, and determines the access right P ⁇ of the UE.
- the target MME may send a handover request message to the target base station or the target base station gateway. If the UE does not have access to the target cell, the target MME may directly send a forwarding relocation request response message to the source MME, and may carry the handover failure in the message. Reasons, etc.
- Step 511 The target base station sends a handover failure message to the target MME.
- the target base station may send a handover failure message to the target MME, where the handover failure message may carry the reason for the handover failure, and the failure reason may be insufficient resources or the like.
- step 512 the process proceeds to step 512. If the MME is not relocated, the source MME and the target MME are the same entity, and the interaction message between the source MME and the target MME is omitted, and the process proceeds to step 513.
- the forwarding relocation response message may carry the reason for the handover failure, and the process proceeds to step 513.
- Step 513 The source MME sends a handover preparation failure message to the source base station or the source base station gateway.
- the handover preparation failure message may carry the reason for the handover failure, and the current handover procedure is terminated.
- the source base station may reselect the target cell for the UE, and start the handover process again.
- Step 514 The target base station sends a handover request acknowledgement message to the target MME.
- the target base station prepares a corresponding resource, and may send a handover request acknowledgement message to the target MME, where the handover request acknowledgement message may include the following information: handover type, successfully established bearer list, failed to be successfully established. Host list.
- the target base station gateway may also determine whether the current UE meets the handover condition.
- step 515 if the MME is relocated, proceed to step 515; if the MME is not relocated, the source
- the MME and the target MME are the same entity, and the interaction message between the source MME and the target MME is omitted, and the process proceeds to step 516.
- Step 515 The target MME sends a forwarding relocation response message to the source MME.
- Step 516 The source MME sends a handover command message to the source base station.
- Step 517 The source base station sends a handover command message to the UE.
- Step 518 The source network delivers context information and data to the target network, and the target network updates the bearer.
- the UE may also initiate the location area update, for example, the location area list update (TAU, Tracking Area Update) e UE successfully switches to the target cell, and the source network may Delete the context and temporary bearer of the UE.
- TAU Tracking Area Update
- the MME performs access control on the terminal according to the access mode and/or the CSG ID of the target cell, and can switch the terminal to the target that the user has access to. The cell, and then try to avoid causing the operator's charging loss; after switching to the target cell, the terminal can initiate secondary service in the target cell.
- the access control information used by the MME for access control is stored by the target base station or the target base station gateway, and the access control information is authentic and valid, thereby ensuring the validity of the handover.
- This embodiment is an integrated embodiment.
- the TAU process is initiated, and the MME performs access control on the UE according to the corresponding rule of the TAU process.
- FIG. 6 is a schematic flowchart of a method for implementing handover control according to Embodiment 6 of the present invention, which may specifically include:
- Step 601 Perform a standard handover preparation process.
- the UE When the measurement report reporting condition is met, the UE sends a measurement report to the source base station, the source base station selects the target cell, and performs a standard handover preparation procedure.
- Step 602 The source base station sends a handover command message to the UE.
- the source base station After the handover preparation is successful, the source base station sends a handover command message to the UE.
- Step 603 The UE synchronizes to the target cell, and sends a handover confirmation message to the target base station.
- the access mode of the target cell can be obtained from the target base station and/or
- Step 604 The UE sends a TAU request message to the target MME.
- the information carried in the foregoing TAU request message includes: an access mode of the target cell and/or CSG
- the target MME can obtain the UE mobility management context.
- the target MME may further detect, according to the CSG access control rule, whether the access mode of the received target cell is a closed mode, and further detecting whether the CSG list of the UE matches the CSG ID of the received target cell. If not, the UE is not allowed to access the target cell, and the process proceeds to step 605. If yes, the UE can be considered to have access to the target cell, and the process proceeds to step 607.
- the source MME may consider that the UE has the right to access the target cell, and then proceeds to step 607.
- the target MME sends a TAU reject message to the UE.
- the reason for the rejection can be carried in the TAU reject message, indicating that the reason for the rejection is that the user does not have access to the target cell and ends the process.
- Step 607 continue to execute the TAU process
- the TAU process is continued.
- Step 608 The source network delivers context information and data to the target network, and the target network updates the bearer.
- the MME uses the TAU process to perform access control on the terminal. If the terminal does not have access to the target cell, the current service of the terminal in the target cell can be forcibly interrupted. Try to avoid causing the operator's billing loss.
- TAU process is used for access control, which is easy to implement.
- the UE performs handover between different CSG cells under the same base station, and the MME performs access control on the UE according to the access mode and/or CSG ID of the target cell.
- FIG. 7 is a schematic flowchart of a method for implementing handover control according to Embodiment 7 of the present invention, which may specifically include:
- Step 701 The UE reports a measurement report to the base station.
- Step 702 The base station sends an access control request message to the MME.
- the base station selects a cell that meets the handover preparation condition (sufficient resources) as the target cell.
- the information carried in the foregoing access control request message may include: an access mode and/or a CSG ID of the target cell.
- the base station may first detect the access mode of the target cell, and if the access mode of the target cell is the closed mode, the information carried by the access control request message may only include the target cell.
- the UE may be considered to have access to the target cell, and then the process proceeds to step 705.
- the MME may further detect whether the CSG list of the UE matches the CSG ID of the received target cell, if the access mode of the received target cell is detected to be the closed mode according to the CSG access control rule.
- the record, if any, can be considered that the UE has access to the target cell; if not, the UE can be considered to have no right to access the target cell.
- the MME may be considered as having no right to access the target cell.
- the access mode of the target cell may be the closed mode. If the MME is in the closed mode, it is determined whether the UE has the right to access the target cell.
- Step 704 The MME sends an access control request response message to the base station.
- the information carried in the access control request response message may include: indication information indicating that the UE is allowed to handover to the target cell.
- the information carried in the access control request response message may include: a reason for the handover failure.
- Step 705 The base station sends a handover command message to the UE.
- the base station If the UE has access to the target cell, the base station sends a handover command message to the UE. If the UE does not have access to the target cell, the base station may reselect the target cell for the UE and initiate a new handover procedure.
- Step 706 The target cell synchronized by the UE, and sending a handover confirmation message to the base station.
- the MME when the terminal performs cell handover, the MME performs access control on the terminal according to the access mode and/or the CSG ID of the target cell, and can effectively switch the terminal to the right to access the terminal.
- the target cell tries to avoid causing the operator's charging loss.
- the terminal After switching to the target cell, the terminal can initiate secondary services in the target cell.
- the access control information used by the MME for performing access control is stored by the base station or the base station gateway, and the access control information is authentic and valid, and the validity of different cell handovers under the same base station is ensured.
- FIG. 8 is a schematic diagram of a mobility management entity according to Embodiment 8 of the present invention, which may include:
- the receiving unit 810 is configured to receive a first handover message, where the first handover message carries an identifier of a target cell to which the terminal is ready to switch, and the target cell is a CSG cell.
- the obtaining unit 820 is configured to acquire access mode and/or CSG ID information of the target cell stored by the target base station or the target base station gateway.
- the manner in which the foregoing obtaining unit 820 obtains the foregoing information may be any, for example, may be obtained by using a message in an existing switching process, or may be obtained by using a dedicated message.
- the access control unit 830 is configured to perform access control on the terminal according to an access mode and/or a CSG ID of the target cell.
- the access control unit 830 can perform access control on the terminal according to the CSG access control rule according to the access mode and/or the CSG ID of the target cell. If the terminal has access to the target cell, it is allowed to switch; if the terminal does not have access to the target cell, the handover process can be terminated.
- the obtaining unit 820 may include: a first sending subunit 821 and a first receiving subunit 822.
- the first sending subunit 821 is configured to send a handover request to the target base station or the target base station gateway.
- the first sending subunit 821 may send a handover request message to the target base station or the target base station gateway by using the intermediate device.
- the first receiving sub-unit 822 is configured to receive a handover request acknowledgement message sent by the target base station or the target base station gateway, where the handover request acknowledgement message carries an access mode and/or a CSG of the target cell stored by the target base station or the target base station gateway. ID.
- the first receiving subunit 822 can receive a handover request acknowledgement message sent by the target base station or the target base station gateway through the intermediate device.
- the acquiring unit 820 may further include: a second sending subunit 823, and a second receiving Subunit 824.
- a second sending sub-unit 823 configured to send a forwarding relocation response message to the target MME
- the second receiving sub-unit 824 is configured to receive a forwarding relocation response message sent by the target MME, where the forwarding relocation response message carries the target base station Or the access mode and/or CSG ID of the target cell stored by the target base station gateway.
- the access control unit 830 may include: a detecting subunit 831, a third transmitting subunit 832, and a fourth transmitting subunit 833.
- the detecting sub-unit 831 is configured to detect, in the CSG list that the terminal is allowed to access, whether the CSG ID of the target cell matches the CSG ID of the target cell, when the access mode of the target cell acquired by the acquiring unit is found to be in a closed mode. recording.
- the third sending subunit 832 is configured to send a handover command message to the source base station or the source base station gateway when the detecting subunit 831 detects that there is a matching record.
- the fourth sending sub-unit 833 is configured to send a handover preparation failure message to the source base station or the source base station gateway when the detecting sub-unit 831 detects that there is no matching record, where the handover preparation failure message carries the indication information of the handover failure.
- the obtaining unit 820 may further include: a fifth sending subunit 825 and a third receiving subunit 826.
- the fifth sending subunit 824 is configured to send an access control information request message to the target base station or the target base station gateway.
- the fifth receiving subunit 824 can send an access control information request message to the target base station or the target base station gateway through the intermediate device.
- the third receiving sub-unit 826 is configured to receive an access control information response message sent by the target base station or the target base station gateway, where the access control information response message carries an access mode of the target cell stored by the target base station or the target base station gateway. / or CSG ID.
- the third receiving subunit 824 can receive an access control information response message sent by the target base station or the target base station gateway through the intermediate device.
- the access control unit 830 may also include: a detecting subunit 831, a fourth transmitting subunit 833, and a sixth transmitting subunit 834.
- a sixth sending subunit 834 configured to: when the detecting subunit 831 detects a matching record, Sending a handover request message to the target base station or the target base station gateway;
- the obtaining unit 820 may further include: a seventh sending subunit 827 and a fourth receiving subunit 828.
- the seventh sending subunit 827 is configured to send an access control information request message to the target MME.
- the fourth receiving sub-unit 828 is configured to receive an access control information response message sent by the target MME, where the access control information response message carries an access mode of a target cell stored by the target base station or the target base station gateway, and/or CSG ID.
- the access control unit may further include: a detecting subunit 831, a fourth transmitting subunit 833, and an eighth transmitting subunit 835.
- the eighth sending sub-unit 835 is configured to send a relocation request message to the target MME when the detecting sub-unit 831 detects that there is a matching record.
- FIG. 9 is a schematic diagram of a mobility management entity according to Embodiment 9 of the present invention, which may include:
- the receiving unit 910 is configured to receive a TAU request message, where the TAU request message is sent by the terminal after being synchronized to the target cell, where the TAU request message carries an access mode and/or a CSG ID of the target cell, where the target The cell is a CSG cell.
- the receiving unit 1110 may receive a TAU request message sent by the terminal through the base station or the base station gateway.
- the access control unit 920 is configured to perform access control on the terminal according to the information carried in the TAU request message.
- the embodiment of the present invention further provides a mobility management entity.
- a mobility management entity according to Embodiment 10 of the present invention, which may include:
- the receiving unit 1010 is configured to receive an access control request message sent by the base station or the base station gateway, where The access control request message carries an identifier of a target cell to which the terminal is to be handed over, and an access mode and/or a CSG ID of the target cell, where the target cell is a CSG cell under the current cell base station;
- the detecting unit 1020 is configured to detect, when the access mode of the target cell is in the closed mode, whether there is a record matching the CSG ID of the target cell in the CSG list that the terminal is allowed to access;
- the sending unit 1030 is configured to send, when the detecting unit 1020 detects a matching record, an access control request response message to the base station or the base station gateway, where the access control request response message carries indication information that allows switching. And sending an access control request response message to the base station or the base station gateway, where the access control request response message carries the indication information of the handover failure, and the indication information may be that the terminal does not have access.
- FIG. 11 is a schematic diagram of an access network device according to Embodiment 11 of the present invention, which may include:
- the receiving unit 1110 is configured to receive a handover request message, where the handover request message carries an access mode and/or a CSG ID of a target cell to which the terminal is to be handed over, and the target cell is a CSG cell.
- the comparing unit 1120 is configured to compare whether the access mode and/or the CSG ID of the target cell is the same as the access mode and/or the CSG ID of the target cell stored by the target base station or the target base station gateway.
- the sending unit 1130 sends a handover failure message to the MME when the comparison unit 1120 is different, and the handover failure message carries the indication information of the handover failure.
- the access network device may further include:
- the detecting unit 1140 is configured to detect, according to the handover preparation rule, whether the terminal currently meets the handover condition when the comparison unit 1120 compares the same.
- the handover request acknowledgement message is sent to the MME, or when the detection unit 1140 detects that the terminal does not currently satisfy the handover condition, the handover failure message is sent to the MME, and the handover failure message carries the indication information of the handover failure.
- the access network device in this embodiment may be a base station or a base station gateway, and is not limited thereto.
- the embodiment of the present invention further provides a communication system, which may include: the mobility management entity according to the embodiment 8, or the mobility management entity according to the embodiment 9, or the method as described in the tenth embodiment.
- the MME performs access control on the terminal according to the access mode and/or the CSG ID of the target cell, and can switch the terminal to the target cell that the user has access to, as much as possible, thereby avoiding the carrier's charging loss as much as possible; After switching to the target cell, the terminal can initiate a secondary service in the target cell.
- the access control information used by the MME for performing access control may be stored by the target base station or the target base station gateway, or verified by the target base station or the target base station gateway, thereby ensuring the validity of the handover;
- Multiple entities in the network can perform access control, and the implementation is flexible and diverse.
- the program can be stored in a computer readable storage medium.
- the storage medium can include: ROM, RAM, disk or CD, etc.
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Description
切换控制的实现方法及相关设备
本申请要求了于 2009年 1月 19日提交中国专利局,申请号为 200910003076.9、 发明名称为 "切换控制的实现方法、 相关设备及通信***" 的中国申请的优 先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信技术领域, 具体涉及切换控制的实现方法, 相关设备及 通信***。 背景技术
随着移动通信技术的发展, 用户需求越来越呈现出多样化。 为了满足用 户多样化的需求, 家庭室内覆盖基站和企业级的内部覆盖基站, 以及其他一 些私有网络(Private Network)应运而生。 对于私有网络场景, 从网络对用户接 入权限限制的角度, 可以分为闭合模式和非闭合模式两种, 其中, 闭合模式 只允许部分特定签约用户接入和发起业务; 非闭合模式又可以分为开放模式 和混合模式, 其中, 开放模式可视为与公共小区相同的接入模式, 即允许没 有签约到该私有网络的用户接入和发起业务, 混合模式是指该私有网络可以 同时作为闭合模式和开放模式使用, 即对一部分特定签约用户作为闭合模式 使用, 对其他用户作为开放模式使用, 但特定签约用户与其他用户相比, 可 能有较优惠的计费策略和较高的服务质量保证。
通信***可以分为接入网和核心网两部分, 核心网主要负责终端到网络 的移动性管理、 会话管理、 安全管理、 策略和计费管理等; 接入网主要负责 无线资源管理等。 位于接入网的基站通过空中接口和终端通讯。 基站可以按 照其信号覆盖面积、 可以容纳的用户数量、 部署场景等因素分类, 例如可以 分为: 宏基站、 微基站、 家庭基站等。 家庭基站通常是个人或团体拥有, 一 般作为专属资源被部署在家庭、 团体、 公司或者学校等场所使用, 为一些特 定用户提供服务。
家庭基站可以通过闭合用户群组(CSG, Closed Subscriber Group )控制
家庭成员接入 CSG小区。 CSG的签约用户可以通过任意一个为该 CSG服务的闭 合模式的基站接入网络, 发起业务; 不属于该 CSG的用户无权通过为该 CSG 服务的闭合模式的基站发起业务。 不同的 CSG可以用不同的 CSG标识(CSG ID )来区分, 用户允许接入的 CSG列表用于记录允许用户接入的小区的 CSG ID。 核心网的移动性管理实体(MME, Mobility Management Entity )可以保 存用户允许接入的 CSG列表。
按照现有的切换流程, 可能会造成对终端的误切换, 造成运营商的计费 损失;且若将终端切换到其无权接入的 CSG小区,终端在该 CSG小区发起二 次业务, 会较大的影响用户体验。 发明内容
本发明实施例提供一种切换控制的实现方法、相关设备及通信***, MME 按照 CSG接入控制规则, 对终端的小区切换进行接入控制, 能够尽量将终端 切换到其有权接入的目标小区。
为实现上述发明目的, 本发明实施例通过以下技术方案具体实现: 本发明实施例提供一种切换控制的实现方法, 包括: 接收第一切换消息, 所述第一切换消息携带有终端准备切换到的目标小区的标识, 所述目标小区 为闭合用户组 CSG小区; 获取目标基站或目标基站网关存储的所述目标小区 的接入模式和 /或闭合用户组标识 CSG ID信息; 根据所述目标小区的接入模式 和 /或 CSG ID对所述终端进行接入控制。
此外, 本发明实施例还提供一种切换控制的实现方法, 包括: 接收切换 请求消息, 所述切换请求消息携带有终端准备切换到的目标小区的接入模式 和 /或 CSG ID, 所述目标小区为 CSG小区; 比较所述目标小区的接入模式和 / 或 CSG ID, 是否与目标基站或目标基站网关存储的目标小区的接入模式和 /或 CSG ID相同; 若不同, 则向 MME发送切换失败消息, 所述切换失败消息携带 有切换失败的指示信息。
此外, 本发明实施例还提供一种切换控制的实现方法, 包括: 接收位置 区列表更新请求消息, 所述位置区列表更新请求消息由终端在同步到目标小 区后发送, 所述位置区列表更新请求消息携带有所述目标小区的接入模式和 / 或 CSG ID, 所述目标小区为 CSG小区; 根据所述位置区列表更新请求消息携
带的信息对所述终端进行接入控制。
此外, 本发明实施例还提供一种切换控制的实现方法, 包括: 接收基站 或基站网关发送的接入控制请求消息, 所述接入控制请求消息携带有终端准 备切换到的目标小区的标识, 以及所述目标小区的接入模式和 /或闭合用户群 组标识 CSG ID, 所述目标小区为当前小区基站下的 CSG小区; 若所述目标小 区的接入模式为闭合模式, 则检测所述终端允许接入的 CSG列表中是否有与 所述目标小区的 CSG ID相匹配的记录; 若是, 则向所述基站或基站网关发送 接入控制请求回应消息, 所述接入控制请求回应消息携带有允许切换的指示 信息。
此外, 本发明实施例还提供一种移动性管理实体, 包括: 接收单元, 用 于接收第一切换消息, 所述第一切换消息携带有终端准备切换到的目标小区 的标识, 所述目标小区为 CSG小区; 获取单元, 用于获取目标基站或目标基 站网关存储的所述目标小区的接入模式和 /或 CSG ID信息; 接入控制单元, 用 于根据所述目标小区的接入模式和 /或 CSG ID对所述终端进行接入控制。
此外, 本发明实施例还提供一种接入网设备, 包括: 接收单元, 用于接 收切换请求消息, 所述切换请求消息携带有终端准备切换到的目标小区的接 入模式和 /或 CSG ID, 所述目标小区为 CSG小区; 比较单元, 用于比较所述目 标小区的接入模式和 /或 CSG ID, 是否与目标基站或目标基站网关存储的目标 小区的接入模式和 /或 CSG ID相同;发送单元,在所述比较单元比较出不同时, 向 MME发送切换失败消息, 所述切换失败消息携带有切换失败的指示信息。
此外, 本发明实施例还提供一种移动性管理实体, 包括: 接收单元, 用 于接收位置区列表更新请求消息, 所述位置区列表更新请求消息由终端在同 步到目标小区后发送, 所述位置区列表更新请求消息携带有所述目标小区的 接入模式和 /或 CSG ID, 所述目标小区为 CSG小区; 接入控制单元, 用于根据 所述位置区列表更新请求消息携带的信息对所述终端进行接入控制。
此外, 本发明实施例还提供一种移动性管理实体, 包括: 接收单元, 用 于接收基站或基站网关发送的接入控制请求消息, 所述接入控制请求消息携 带有终端准备切换到的目标小区的标识, 以及所述目标小区的接入模式和 /或 CSG ID, 所述目标小区为当前小区基站下的 CSG小区; 检测单元, 用于在发 现所述目标小区的接入模式为闭合模式, 则检测所述终端允许接入的 CSG列
表中是否有与所述目标小区的 CSG ID相匹配的记录; 发送单元, 用于在所述 检测单元检测到有匹配记录时, 向所述基站或基站网关发送接入控制请求回 应消息, 所述接入控制请求回应消息携带有允许切换的指示信息。
此外, 本发明实施例还提供一种通信***, 包括: 如上述实施例所述的 移动性管理实体, 或如上述实施例所述的接入网设备。
可以看出, 本发明实施例采用的技术方案可以带来如下有益效果: 在终 端进行小区切换时, MME会根据目标小区的接入模式和 /或 CSG ID对终端进 行接入控制, 能够尽量有效的将终端切换到其有权接入的目标小区, 进而能 够尽量避免造成运营商的计费损失; 在切换到目标小区后, 终端可以在目标 小区发起二次业务。 附图说明
为了更清楚地说明本发明实施例的技术方案, 下面将对实施例描述中所 需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发 明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动性的 前提下, 还可以根据这些附图获得其他的附图。
图 1是本发明实施例一提供的一种切换控制的实现方法流程示意图; 图 2是本发明实施例二提供的一种切换控制的实现方法流程示意图; 图 3是本发明实施例三提供的一种切换控制的实现方法流程示意图; 图 4是本发明实施例四提供的一种切换控制的实现方法流程示意图; 图 5是本发明实施例五提供的一种切换控制的实现方法流程示意图; 图 6是本发明实施例六提供的一种切换控制的实现方法流程示意图; 图 7是本发明实施例七提供的一种切换控制的实现方法流程示意图; 图 8是本发明实施例八提供的一种移动性管理实体示意图;
图 9是本发明实施例九提供的一种移动性管理实体示意图;
图 10是本发明实施例十提供的一种移动性管理实体示意图;
图 11是本发明实施例十一提供的一种接入网设备示意图。 具体实施方式
本发明实施例针对在终端切换过程中没有进行接入权限控制, 导致可能 切换无效的问题, 提供一种切换控制的实现方法、 相关设备及通信***, 终
端在进行小区切换时, MME按照 CSG接入控制规则, 对终端切换进行接入控 制, 能够尽量有效的将终端切换到其有权接入的目标小区。
以下通过具体实施例分别进行伴细说明。
下述实施例中涉及到的源基站可以是: 家庭基站或普通基站; 目标基站 可以是: 家庭基站; 目标小区可以是 CSG小区。 对于需要重定位 MME的情况, 源 MME和目标 MME为不同实体; 对于不需要重定位 MME的情况, 源 MME和 目标 MME为同一个实体, 源 MME和目标 MME之间互发的消息省略。
下述实施例中涉及到的切换需求消息可以是: Handover Required消息、转 发重定位请求消息可以是: Forward Relocation Request消息、 转发重定位响应 消息可以是: Forward Relocation Response消息、切换请求消息可以是 Handover Request: 消息、 切换请求确认消息可以是: Handover Request Acknowledge消 息、切换准备失败可以是: Handover Preparation Failure消息、切换命令消息可 以是: Handover Command消息、切换请求确认消息可以是: Handover Confirm 消息、 切换失败消息可以是: Handover Failure消息、 重定位取消请求消息可 以是: Relocation Cancel Request消息、重定位取消响应消息可以是: Relocation Cancel Response消息。
下述实施例中涉及到的接入控制信息可以是: 目标小区的 CSG ID, 和 /或 目标小区的接入模式。 实施例一、
参见图 1、 是本发明实施例一提供的一种切换控制的实现方法流程示意 图, 具体可以包括:
步骤 110、 接收第一切换消息, 所述第一切换消息携带有终端准备切换到 的目标小区的标识, 所述目标小区为 CSG小区;
第一切换消息可以是切换需求消息, 或者是转发重定位请求消息。
步骤 120、 获取目标基站或目标基站网关存储的所述目标小区的接入模式 和 /或 CSG ID信息;
MME获取目标基站或目标基站网关存储的目标小区的接入模式和 /或 CSG ID信息的方式可以是任意的, 例如, 可以通过现有切换流程中的命令获 取, 也可以通过专用的消息获取。
步骤 130、 根据所述目标小区的接入模式和 /或 CSG ID对所述终端进行接
入控制。
在终端切换过程中, MME根据目标小区的接入模式和 /或 CSG ID, 按照 CSG接入控制规则, 对终端进行接入控制。 若终端有权接入目标小区, 则允 许其切换; 若终端无权接入目标小区, 则可以终止切换流程。
可以看出, 本实施例中, 在终端进行小区切换时, MME会根据目标基站 或目标基站网关存储的目标小区的接入模式和 /或 CSG ID对终端进行接入控 制, 能够比较有效的将终端切换到其有权接入的目标小区, 尽量避免造成运 营商的计费损失; 在切换到目标小区后, 终端可以在目标小区发起二次业务。 实施例二、
参见图 2、 是本发明实施例二提供的一种切换控制的实现方法流程示意 图, 具体可以包括:
步骤 210、 接收切换请求消息, 所述切换请求消息携带有终端准备切换到 的目标小区的接入模式和 /或 CSG ID, 所述目标小区为 CSG小区;
可以是目标基站或目标基站网关接收 MME发送的切换请求消息。
步骤 220、 比较所述目标小区的接入模式和 /或 CSG ID, 是否与目标基站 或目标基站网关存储的目标小区的接入模式和 /或 CSG ID相同;
步骤 230、若不同, 则向 MME发送切换失败消息, 所述切换失败消息携带 有切换失败的指示信息。
可以看出, 本实施例中, 在终端进行小区切换时, 目标基站或者目标基 站网关对源基站、 源基站网关、 或终端上报的接入控制信息进行真实性验证, 能够尽量有效的将终端切换到其有权接入的目标小区, 进而尽量避免造成运 营商的计费损失; 在切换到目标小区后, 终端可以在目标小区发起二次业务。 实施例三、
本实施例为综合实施例, 在本实施例中, UE利用测量报告主动上报目标 小区的接入模式和 /或 CSG ID, MME ^UE上报的目标小区的接入模式和 /或 CSG ID对 UE进行接入控制。
参见图 3、 是本发明实施例三提供的一种切换控制的实现方法流程示意 图, 具体可以包括:
步骤 301、 UE向源基站上报测量报告;
当满足测量报告上报条件时, UE向源基站发送测量报告, 测量报告中包
含测量结果, 测量结果可以包括: 被测目标小区的标识信息, 各种衡量信号 质量的参数值等。 UE可以是周期性的上报测量报告, 和 /或在当前小区信号质 量明显下降时上报, 且不限于此。
其中, 上述目标小区的标识可以是: 目标小区的物理小区标识(Physical Cell Identity )、 全球小区标识 (Global Cell Identity), 或小区标识( Cell Identity ) 等。 由于目标小区是 CSG小区, 测量结果中还可以包括: 目标小区的 CSG ID 和 /或目标小区的接入模式等等接入控制信息, UE可以从小区广播消息中获得 上述接入控制信息。
步骤 302、 源基站向源 MME发送切换需求消息;
上述切换需求消息中可以携带如下信息: 切换类型 (例如: 普通小区到 CSG小区、 或 CSG小区到 CSG小区等)、 切换原因 (例如, 基于资源优化、 负 载均衡等), 目标标识、 源基站到目标基站透传容器、 UE上报的目标小区的接 入模式和 /或 CSG ID等。 其中, 目标标识可以是目标基站标识、 透传容器中可 以包括: 目标小区标识等信息。
步骤 303、 源 MME判断 UE是否有权限接入到目标小区;
正常情况下, 源 MME上存储有 UE的移动性管理上下文, UE移动性管理 上下文中包含有 UE允许接入的 CSG列表, 可以认为, 该 CSG列表中记录的各 个 CSG ID对应的 CSG小区都允许 UE接入和发起业务。
源 MME可以按照 CSG接入控制规则,如果检测出 UE上报的目标小区的接 入模式为闭合模式, 则进一步检测 UE的允许接入 CSG列表中是否有与 UE上报 的目标小区的 CSG ID相匹配的记录,若有,则可以认为 UE有权接入目标小区, 可以继续切换流程; 若没有, 则可以认为 UE无权接入目标小区, 源 MME可以 直接向源基站发送切换准备失败消息, 上述切换准备失败消息可以携带切换 失败的原因等信息, 并结束本次切换流程。 源基站在接收到切换准备失败消 息后, 可以为 UE重新选择目标小区, 再次启动切换流程。
源 MME如果检测出 UE上报的目标小区的接入模式为非闭合模式(例如, 开放模式、 或混合模式), 则执行正常的切换流程, 即执行与切换到普通小区 相同的切换流程。
优选的, 如果 UE通过测量报告上报的目标小区的接入模式为开放模式, 则上述切换需求消息中可以不携带目标小区的接入模式和 CSG ID信息, 或者
只携带目标小区的接入模式信息, 且不限于此, 源 MME可以采用默认的方式 确定出目标小区的为开放模式。
此外, 如果需要重定位 MME, 则进入步骤 304; 如果不需要重定位 MME, 则下述中的源 MME和目标 MME为同一个实体, 源 MME和目标 MME的交互消 息省略, 进入步骤 305。
步骤 304、 源 MME向目标 MME发送转发重定位请求消息;
上述转发重定位请求消息中可以携带如下信息: UE移动性管理上下文, 目标小区的接入模式和 /或 CSG ID、 源基站到目标基站透传容器, 目标基站标 识等等。
可选的, 如果需要进行 MME重定位, 则步骤 303中, 源 MME可以不对 UE 是否有权接入到目标小区进行判断;而可以在本步骤中,由目标 MME按照 CSG 接入控制规则, 判断终端是否有权接入到目标小区, 若有, 则继续切换流程; 若没有, 可以认为 UE无权接入目标小区, 并可以将切换失败的原因通知源基 站, 并可终止本次切换流程。
步骤 305、 目标 MME向目标基站发送切换请求消息;
上述切换请求消息可以包括: 切换类型、 切换原因、 需要建立的承载列 表、 源基站到目标基站透传容器, 目标小区的接入模式和 /或 CSG ID等。
步骤 306、 目标基站判断 UE是否满足切换条件;
优选的, 目标基站可以进一步的验证终端上报的目标小区的接入模式和 / 或 CSG ID的真实性。举例来说,目标基站中存储有目标小区的接入模式和 CSG ID, 目标基站可以先将接收到的目标小区的接入模式和 /或 CSG ID, 和自身存 储的相应信息进行比较。
可选的, 如果存在目标基站网关, 且目标基站网关中存储有目标小区的 接入模式和 CSG ID信息, 则也可以由目标基站网关来鉴别 UE上报的接入控制 信息的真实性。
若比较出不同, 表明 UE上报的接入控制信息不真实, 则进入步骤 307。 若比较出相同, 表明 UE上报的接入控制信息真实, 目标基站可以进一步 依据切换准备规则判断是否满足切换条件(例如, 当前资源是否充足等), 若 不满足切换条件, 则进入步骤 307; 若满足, 则进入步骤 310。
步骤 307、 目标基站向目标 MME发送切换失败消息;
若目标基站发现 UE上报的接入控制信息不真实,或当前 UE不满足切换条 件, 目标基站可以向目标 MME发送切换失败消息, 该切换失败消息中可以携 带切换失败的原因, 失败原因可以是 UE上报的接入控制信息不真实、 或者资 源不足等等。
此外, 如果重定位了 MME, 则进入步骤 308; 如果不需要重定位 MME, 则源 MME和目标 MME为同一个实体, 源 MME和目标 MME的交互消息省略, 进入步骤 309。
步骤 308、 目标 MME向源 MME发送转发重定位响应消息;
目标 MME若接收到目标基站发送切换失败消息, 则上述转发重定位响应 消息中可以携带切换失败的原因等, 进入步骤 309。
步骤 309、 源 MME向源基站发送切换准备失败消息;
上述切换准备失败消息中可以携带切换失败的原因等, 并结束本次切换 流程。 源基站在接收到切换准备失败消息后, 可以为 UE重新选择目标小区, 再次启动切换流程。
步骤 310、 目标基站向目标 MME发送切换请求确认消息;
若判断出满足切换条件, 则目标基站准备相应资源, 并可以向目标 MME 发送切换请求确认消息, 该切换请求确认消息中可以包括如下信息: 切换类 型, 成功建立的承载列表, 未能成功建立的承载列表等。
此外, 如果重定位了 MME, 则进入步骤 311 ; 如果没有重定位 MME, 源 MME和目标 MME即为同一个实体, 源 MME和目标 MME的交互消息省略, 则 进入步骤 312。
步骤 311、 目标 MME向源 MME发送转发重定位响应消息;
目标 MME若接收到目标基站发送切换请求确认消息, 则上述转发重定位 响应消息中可以包括如下信息: 成功建立的承载列表、 目标基站到源基站透 传容器等。
步骤 312、 源 MME向源基站发送切换命令消息;
步骤 313、 源基站向 UE发送切换命令消息;
步骤 314、源网络向目标网络传递上下文信息和数据, 目标网络更新承载。 步骤 315、 UE同步到目标小区, 向目标基站发送切换确认消息。
如果目标小区的位置区标识不在 UE保存的位置区标识列表中, UE还可以
发起位置区更新, 例如、 位置区列表更新 ( TAU, Tracking Area Update )e UE成功切换到目标小区后, 源网络可以删除 UE的上下文和临时承载等。 可以看出, 本实施例中, 在终端进行小区切换时, MME会根据目标小区 的接入模式和 /或 CSG ID对终端进行接入控制, 能够尽量将终端切换到其有权 接入的目标小区, 进而相对避免了运营商的计费损失; 在切换到目标小区后, 终端可以在目标小区发起二次业务。
进一步的, 目标基站或目标基站网关验证终端上报的接入控制信息的真 实性, 进一步的保证了切换的有效性; 对切换流程改动较小, 实现较容易。 实施例四、
本实施例为综合实施例, 在本实施例中, MME获取目标基站或目标基站 网关存储的目标小区的接入模式和 /或 CSG ID, 并根据获取的目标小区的接入 模式和 /或 CSG ID对 UE进行接入控制。
参见图 4、 是本发明实施例四提供的一种切换控制的实现方法流程示意 图, 具体可以包括:
步骤 401、 UE向源基站上报测量报告;
当满足测量报告上报条件时, UE向源基站发送测量报告, 测量报告中包 含测量结果, 测量结果可以包括: 被测目标小区的标识信息, 各种衡量信号 质量的参数值等。
步骤 402、 源基站向源 MME发送切换需求消息;
上述切换需求消息中可以携带如下信息: 切换类型、 切换原因、 目标标 识、 源基站到目标基站透传容器、 选择的位置区标识。 其中, 目标标识可以 是目标基站标识、 透传容器中可以包括: 目标小区的标识等信息。
此外, 如果需要重定位 MME, 则进入步骤 403; 如果不需要重定位 MME, 则下述中的源 MME和目标 MME为同一个实体, 源 MME和目标 MME的交互消 息省略, 进入步骤 404。
步骤 403、 源 MME向目标 MME发送转发重定位请求消息;
上述转发重定位请求消息中可以携带如下信息: UE移动性管理上下文, 源基站到目标基站透传容器, 目标基站标识等等。
步骤 404、 目标 MME向目标基站或目标基站网关发送切换请求消息; 上述切换请求消息可以包括: 切换类型、 切换原因、 需要建立的承载列
表、 源基站到目标基站透传容器等。
步骤 405、 目标基站判断 UE是否满足切换条件;
目标基站依据切换准备规则判断是否满足切换条件(例如, 当前资源是 否充足等), 若不满足切换条件, 则进入步骤 406; 若满足, 则进入步骤 408。
步骤 406、 目标基站向目标 MME发送切换失败消息;
若目标基站判断出当前 UE不满足切换条件, 目标基站可以向目标 MME 发送切换失败消息, 该切换失败消息中可以携带切换失败的原因, 失败原因 可以是资源不足等等。
此外, 如果重定位了 MME, 则进入步骤 407; 如果没有重定位 MME, 源 MME和目标 MME为同一个实体, 源 MME和目标 MME的交互消息省略, 进入 步骤 411。
步骤 407、 目标 MME向源 MME发送转发重定位响应消息;
目标 MME若接收到目标基站发送切换失败消息, 则上述转发重定位响应 消息中可以携带切换失败的原因等, 进入步骤 411。
步骤 408、 目标基站向目标 MME发送切换请求确认消息;
若判断出满足切换条件, 则目标基站准备相应资源, 并可以向目标 MME 发送切换请求确认消息, 该切换请求确认消息中可以包括如下信息: 切换类 型, 成功建立的承载列表, 未能成功建立的承载列表、 目标小区的接入模式 和 /或 CSG ID等。
可选的, 如果存在目标基站网关, 也可以由目标基站网关对当前 UE是否 满足切换条件进行判断。 上述切换请求确认消息中携带的目标小区的接入模 式和 /或 CSG ID信息,可以是目标基站添加的,也可以是目标基站网关添加的。
此外, 如果重定位了 MME, 则进入步骤 409; 如果没有重定位 MME, 源 MME和目标 MME即为同一个实体, 源 MME和目标 MME的交互消息省略, 则 进入步骤 410。
步骤 409、 目标 MME向源 MME发送转发重定位响应消息;
目标 MME若接收到目标基站发送切换请求确认消息, 则上述转发重定位 响应消息中可以包括如下信息: 成功建立的承载列表、 目标基站到源基站透 传容器、 目标小区的接入模式和 /或 CSG ID信息等。
步骤 410、 源 MME判断 UE是否有权限接入到目标小区;
源 MME可以按照 CSG接入控制规则, 如果检测出接收到的目标小区的接 入模式为闭合模式, 则进一步检测 UE的 CSG列表中是否有与接收到的目标小 区的 CSG ID相匹配的记录, 若没有, 则可以认为 UE无权接入目标小区, 进入 步骤 411 ; 若有, 则可以认为 UE有权接入目标小区, 进入步骤 412。
源 MME如果检测出 UE上报的目标小区的接入模式为非闭合模式(例如, 开放模式、 或混合模式), 则进入步骤 412。
可选的, 如果重定位了 MME, 则在步骤 409中, 也可以由目标 MME按照 CSG接入控制规则, 判断 UE是否有权限接入到目标小区, 并可以通过转发重 定位响应消息将判断结果通知源 MME。
步骤 411、 源 MME向源基站发送切换准备失败消息;
上述切换准备失败消息中可以携带切换失败的原因等, 并结束本次切换 流程。 源基站在接收到切换准备失败消息后, 可以为 UE重新选择目标小区, 再次启动切换流程。
步骤 412、 源 MME向源基站发送切换命令消息;
步骤 413、 源基站向 UE发送切换命令消息;
步骤 414、源网络向目标网络传递上下文信息和数据, 目标网络更新承载。 步骤 415、 UE同步到目标小区, 向目标基站发送切换确认消息。
如果目标小区的位置区标识不在 UE保存的位置区标识列表中, UE还可以 发起位置区更新, 例如、 位置区列表更新 ( TAU, Tracking Area Update )e UE成功切换到目标小区后, 源网络可以删除 UE的上下文和临时承载等。 可以看出, 本实施例中, 在终端进行小区切换时, MME会根据目标小区 的接入模式和 /或 CSG ID对终端进行接入控制, 能够尽量将终端切换到其有权 接入的目标小区, 能够尽量避免造成运营商的计费损失; 在切换到目标小区 后, 终端可以在目标小区发起二次业务。
进一步的, MME用于进行接入控制的接入控制信息是目标基站或目标基 站网关存储的, 接入控制信息真实有效, 进而保证了切换的有效性; 对切换 流程改动较小, 实现较容易。 实施例五、
本实施例为综合实施例, 在本实施例中, MME利用专用消息从目标基站 或目标基站网关获取目标小区的接入模式和 /或 CSG ID, 并根据获取的目标小
区的接入模式和 /或 CSG ID对 UE进行接入控制。
参见图 5、 是本发明实施例五提供的一种切换控制的实现方法流程示意 图, 具体可以包括:
步骤 501、 UE向源基站上报测量报告;
当满足测量报告上报条件时, UE向源基站发送测量报告, 测量报告中包 含测量结果, 测量结果可以包括: 被测目标小区的标识信息, 各种衡量信号 质量的参数值等。
步骤 502、 源基站向源 MME发送切换需求消息;
上述切换需求消息中可以携带如下信息: 切换类型、 切换原因、 目标标 识、 源基站到目标基站透传容器、 选择的位置区标识。 其中, 目标标识可以 是目标基站标识、 透传容器中可以包括: 目标小区的标识等信息。
此外, 如果需要重定位 MME, 则进入步骤 503; 如果不需要重定位 MME, 则下述中的源 MME和目标 MME为同一个实体, 源 MME和目标 MME的交互消 息省略, 进入步骤 504。
步骤 503、 源 MME向目标 MME发送接入控制信息请求消息;
上述接入控制信息请求消息中可以携带如下信息: 源基站到目标基站透 传容器, 目标基站标识等等。
进一步的, 源 MME可以先判断是否需要获取接入控制信息, 若需要, 则 向目标 MME发送接入控制信息请求消息; 若不需要, 则可以按照切换到普通 小区的流程进行切换。 举例来说, 源 MME可以根据上述切换需求消息携带的 切换类型信息, 判断是否需要获取接入控制信息, 若切换类型表明是切换到 CSG小区, 则需要获取接入控制信息; 若切换类型表明是切换到普通小区, 则不需要获取接入控制信息。 接入控制信息可以是目标小区的接入模式和 /或 CSG ID等。
步骤 504、目标 MME向目标基站或目标基站网关发送接入控制信息请求消 步骤 505、目标基站或目标基站网关向目标 MME发送接入控制信息回应消 目标基站或目标基站网关可以在接收到接入控制信息请求消息后, 向目 标 MME发送接入控制信息回应消息, 接入控制信息回应消息中可以携带目标
小区的接入模式和 /或 CSG ID。
此外, 如果重定位了 ΜΜΕ, 则进入步骤 506; 如果不需要重定位 ΜΜΕ, 源 ΜΜΕ和目标 ΜΜΕ为同一个实体, 源 ΜΜΕ和目标 ΜΜΕ的交互消息省略, 进 入步骤 507。
步骤 506、 目标 ΜΜΕ向源 ΜΜΕ发送接入控制信息回应消息;
步骤 507、 源 ΜΜΕ判断 UE是否有权限接入到目标小区;
源 ΜΜΕ可以按照 CSG接入控制规则, 如果检测出接收到的目标小区的接 入模式为闭合模式, 则进一步检测 UE的 CSG列表中是否有与接收到的目标小 区的 CSG ID相匹配的记录, 若有, 则可以认为 UE有权接入目标小区, 进入步 骤 508; 若没有, 则可以认为 UE无权接入目标小区, 进入步骤 513。
源 MME如果检测出 UE上报的目标小区的接入模式为非闭合模式(例如, 开放模式、 或混合模式), 则进入步骤 508。
步骤 508、 源 MME向目标 MME发送转发重定位请求消息;
上述转发重定位请求消息中可以携带如下信息: UE移动性管理上下文, 源基站到目标基站透传容器, 目标基站标识等等。
步骤 509、 目标 MME向目标基站发送切换请求消息;
上述切换请求消息可以包括: 切换类型、 切换原因、 需要建立的承载列 表、 源基站到目标基站透传容器等。
可选的, 也可以由目标 MME向目标基站或目标基站网关获取接入控制信 息, 并根据获取的接入控制信息, 按照 CSG接入控制规则, 对 UE的接入权限 进行判断。
举例来说, 若由目标 MME对 UE的接入权限进行判断, 则在步骤 503中, 源 MME向目标 MME发送转发重定位请求消息后; 目标 MME向目标基站或目 标基站网关发送接入控制信息请求消息, 目标 MME接收目标基站或目标基站 网关发送的携带有接入控制信息的接入控制信息回应消息, 并对 UE的接入权 P艮进行判断, 若 UE有权接入目标小区, 则目标 MME可以向目标基站或目标基 站网关发送切换请求消息; 若 UE无权接入目标小区, 则目标 MME可以直接向 源 MME发送转发重定位请求回应消息, 并可以在该消息中携带切换失败的原 因等。
步骤 510、 目标基站判断 UE是否满足切换条件;
目标基站依据切换准备规则判断是否满足切换条件(例如, 当前资源是 否充足等), 若不满足切换条件, 则进入步骤 511 ; 若满足, 则进入步骤 514。
步骤 511、 目标基站向目标 MME发送切换失败消息;
若目标基站判断出当前 UE不满足切换条件, 目标基站可以向目标 MME 发送切换失败消息, 该切换失败消息中可以携带切换失败的原因, 失败原因 可以是资源不足等等。
此外, 如果重定位了 MME, 则进入步骤 512; 如果没有重定位 MME, 源 MME和目标 MME为同一个实体, 源 MME和目标 MME的交互消息省略, 进入 步骤 513。
步骤 512、 目标 MME向源 MME发送转发重定位响应消息;
目标 MME若接收到目标基站发送切换失败消息, 则上述转发重定位响应 消息中可以携带切换失败的原因等, 进入步骤 513。
步骤 513、 源 MME向源基站或源基站网关发送切换准备失败消息; 上述切换准备失败消息中可以携带切换失败的原因等, 并结束本次切换 流程。 源基站在接收到切换准备失败消息后, 可以为 UE重新选择目标小区, 再次启动切换流程。
步骤 514、 目标基站向目标 MME发送切换请求确认消息;
若判断出满足切换条件, 则目标基站准备相应资源, 并可以向目标 MME 发送切换请求确认消息, 该切换请求确认消息中可以包括如下信息: 切换类 型, 成功建立的承载列表, 未能成功建立的承载列表。
可选的, 如果存在目标基站网关, 也可以由目标基站网关对当前 UE是否 满足切换条件进行判断。
此外, 如果重定位了 MME, 则进入步骤 515; 如果没有重定位 MME, 源
MME和目标 MME即为同一个实体, 源 MME和目标 MME的交互消息省略, 则 进入步骤 516。
步骤 515、 目标 MME向源 MME发送转发重定位响应消息;
目标 MME若接收到目标基站发送切换请求确认消息, 则上述转发重定位 响应消息中可以包括如下信息: 成功建立的承载列表、 目标基站到源基站透 传容器等。
步骤 516、 源 MME向源基站发送切换命令消息;
步骤 517、 源基站向 UE发送切换命令消息;
步骤 518、源网络向目标网络传递上下文信息和数据, 目标网络更新承载。 步骤 519、 UE同步到目标小区, 向目标基站发送切换确认消息。
如果目标小区的位置区标识不在 UE保存的位置区标识列表中, UE还可以 发起位置区更新, 例如、 位置区列表更新 ( TAU, Tracking Area Update )e UE成功切换到目标小区后, 源网络可以删除 UE的上下文和临时承载等。 可以看出, 本实施例中, 在终端进行小区切换时, MME会根据目标小区 的接入模式和 /或 CSG ID对终端进行接入控制, 能够尽量将终端切换到其有权 接入的目标小区, 进而尽量避免造成运营商的计费损失; 在切换到目标小区 后, 终端可以在目标小区发起二次业务。
进一步的, MME用于进行接入控制的接入控制信息是目标基站或目标基 站网关存储的, 接入控制信息真实有效, 进而保证了切换的有效性。 实施例六、
本实施例为综合实施例, 在本实施例中, 在 UE同步到目标小区后, 发起 TAU流程, MME按照 TAU流程的相应规则对 UE进行接入控制。
参见图 6、 是本发明实施例六提供的一种切换控制的实现方法流程示意 图, 具体可以包括:
步骤 601、 执行标准的切换准备流程;
当满足测量报告上报条件时, UE向源基站发送测量报告, 源基站选择目 标小区, 执行标准的切换准备流程。
步骤 602、 源基站向 UE发送切换命令消息;
切换准备成功后, 源基站向 UE发送切换命令消息。
步骤 603、 UE同步到目标小区, 向目标基站发送切换确认消息。
UE同步到目标小区后, 能够从目标基站获得目标小区的接入模式和 /或
CSG ID等信息。
步骤 604、 UE向目标 MME发送 TAU请求消息。
上述 TAU请求消息中携带的信息包括: 目标小区的接入模式和 /或 CSG
ID。
步骤 605、 目标 MME判断 UE是否有权限接入到目标小区;
在切换准备过程中, 目标 MME能够获得 UE移动性管理上下文。
目标 MME可以按照 CSG接入控制规则, 如果检测出接收到的目标小区的 接入模式为闭合模式, 则进一步检测 UE的 CSG列表中是否有与接收到的目标 小区的 CSG ID相匹配的记录, 若没有, 则可以认为 UE无权接入目标小区, 进 入步骤 605; 若有, 则可以认为 UE有权接入目标小区, 进入步骤 607。
源 MME如果检测出 UE上报的目标小区的接入模式为非闭合模式(例如, 开放模式、 或混合模式), 可以认为 UE有权接入目标小区, 则进入步骤 607。
606、 目标 MME向 UE发送 TAU拒绝消息;
TAU拒绝消息中可以携带拒绝原因, 指出拒绝原因是用户无权接入目标 小区, 并结束流程。
步骤 607、 继续执行 TAU流程;
若判断出 UE有权接入目标小区, 则继续执行 TAU流程。
步骤 608、源网络向目标网络传递上下文信息和数据, 目标网络更新承载。 步骤 609、 源网络可以删除 UE的上下文和临时承载等。
可以看出, 本实施例中, 在终端同步到目标小区后, MME利用 TAU流程 对终端进行接入控制, 若终端无权接入目标小区, 终端在目标小区的当前业 务可以被强制中断, 能够尽量避免造成运营商的计费损失。
进一步的, 采用 TAU流程进行接入控制, 实现较容易。 实施例七、
在本实施例中, UE在同一个基站下的不同 CSG小区之间进行切换, MME 根据目标小区的接入模式和 /或 CSG ID对 UE进行接入控制。
参见图 7、 是本发明实施例七提供的一种切换控制的实现方法流程示意 图, 具体可以包括:
步骤 701、 UE向基站上报测量报告;
当满足测量报告上报条件时, UE向基站发送测量报告, 测量报告中包含 测量结果, 测量结果可以包括: 被测目标小区的标识信息, 各种衡量信号质 量的参数值等。
步骤 702、 基站向 MME发送接入控制请求消息;
优选的, 基站选择满足切换准备条件(资源充足) 的小区作为目标小区。 上述接入控制请求消息携带的信息可以包括: 目标小区的接入模式和 /或 CSG ID等。
优选的, 基站可以先检测目标小区的接入模式, 若目标小区的接入模式 为闭合模式, 则上述接入控制请求消息携带的信息可以只包括目标小区的
CSG ID; 若检测出目标小区的接入模式为非闭合模式, 可以认为 UE有权接入 到目标小区, 则进入步骤 705。
步骤 703、 MME判断 UE是否有权限接入到目标小区;
举例来说, MME可以按照 CSG接入控制规则,如果检测出接收到的目标 小区的接入模式为闭合模式, 则进一步检测 UE的 CSG列表中是否有与接收到 的目标小区的 CSG ID相匹配的记录,若有,则可以认为 UE有权接入目标小区; 若没有, 则可以认为 UE无权接入目标小区。
源 MME如果检测出 UE上报的目标小区的接入模式为非闭合模式(例如, 开放模式、 或混合模式), 可以认为 UE无权接入目标小区。
若 MME只接收到目标小区的 CSG ID, 可以默认目标小区的接入模式为闭 合模式, 则按照闭合模式的情况, 判断 UE是否有权限接入到目标小区。
步骤 704、 MME向基站发送接入控制请求回应消息;
若 MME判断出 UE有权接入目标小区,则接入控制请求回应消息携带的信 息可以包括: 指示允许 UE切换到目标小区的指示信息。
若 MME判断出 UE有权接入目标小区,则接入控制请求回应消息携带的信 息可以包括: 切换失败的原因等。
步骤 705、 基站向 UE发送切换命令消息;
若 UE有权接入的目标小区, 则基站向 UE发送切换命令消息; 若 UE无权 接入目标小区, 基站可以重新为 UE选择目标小区, 发起新的切换流程。
步骤 706、 UE同步的目标小区, 并向基站发送切换确认消息。
可以看出, 本实施例中, 在终端进行小区切换时, MME会根据目标小区 的接入模式和 /或 CSG ID对终端进行接入控制, 能够有效的将终端切换到其有 权接入的目标小区, 尽量避免造成运营商的计费损失; 在切换到目标小区后, 终端可以在目标小区发起二次业务。
进一步的, MME用于进行接入控制的接入控制信息是基站或基站网关存 储的, 接入控制信息真实有效, 保证同一个基站下不同小区切换的有效性。
可以理解的是, 上述各个实施例中, 各个实体之间交互的部分或者全部 消息都可以通过中间设备进行转发。
实施例八、
相应的, 本发明实施例还提供一种移动性管理实体, 参见图八, 是本发 明实施例八提供的一种移动性管理实体示意图, 可以包括:
接收单元 810, 用于接收第一切换消息, 所述第一切换消息携带有终端准 备切换到的目标小区的标识, 所述目标小区为 CSG小区。
上述接收单元 810接收的第一切换消息可以是切换需求消息, 或者是转发 重定位请求消息。
获取单元 820, 用于获取目标基站或目标基站网关存储的所述目标小区的 接入模式和 /或 CSG ID信息。
上述获取单元 820获取上述信息的方式可以是任意的, 例如, 可以通过现 有切换流程中的消息获取, 也可以通过专用的消息获取。
接入控制单元 830, 用于根据所述目标小区的接入模式和 /或 CSG ID对所 述终端进行接入控制。
上述接入控制单元 830可以根据目标小区的接入模式和 /或 CSG ID, 按照 CSG接入控制规则, 对终端进行接入控制。 若终端有权接入目标小区, 则允 许其切换; 若终端无权接入目标小区, 则可以终止切换流程。
举例来说, 若所述接收单元 810具体用于接收切换需求消息或转发重定位 请求消息, 所述获取单元 820可以包括: 第一发送子单元 821、 第一接收子单 元 822。
第一发送子单元 821, 用于向目标基站或目标基站网关发送切换请求消 举例来说, 所述第一发送子单元 821可以通过中间设备向目标基站或目标 基站网关发送切换请求消息。
第一接收子单元 822, 用于接收目标基站或目标基站网关发送的切换请求 确认消息, 所述切换请求确认消息中携带有目标基站或目标基站网关存储的 目标小区的接入模式和 /或 CSG ID。
举例来说, 所述第一接收子单元 822可以通过中间设备接收目标基站或目 标基站网关发送的切换请求确认消息。
举例来说, 若所述接收单元 810具体用于接收切换需求消息, 且需要进行 MME重定位, 所述获取单元 820也可以包括: 第二发送子单元 823、 第二接收
子单元 824。
第二发送子单元 823, 用于向目标 MME发送转发重定位响应消息; 第二接收子单元 824,用于接收目标 MME发送的转发重定位响应消息,所 述转发重定位响应消息携带有目标基站或目标基站网关存储的目标小区的接 入模式和 /或 CSG ID。
接入控制单元 830可以包括: 检测子单元 831、 第三发送子单元 832、 第四 发送子单元 833。
检测子单元 831, 用于在发现所述获取单元获取的目标小区的接入模式为 闭合模式时, 检测所述终端允许接入的 CSG列表中是否有与所述目标小区的 CSG ID相匹配的记录。
第三发送子单元 832, 用于在所述检测子单元 831检测到有匹配记录时, 向源基站或源基站网关发送切换命令消息。
第四发送子单元 833, 用于在所述检测子单元 831检测到没有匹配记录时, 向源基站或源基站网关发送切换准备失败消息, 所述切换准备失败消息携带 有切换失败的指示信息。
举例来说, 若接收单元 810具体用于接收切换需求消息或转发重定位请求 消息, 所述获取单元 820也可以包括: 第五发送子单元 825和第三接收子单元 826。
第五发送子单元 824, 用于向目标基站或目标基站网关发送接入控制信息 请求消息。
举例来说, 所述第五接收子单元 824可以通过中间设备向目标基站或目标 基站网关发送接入控制信息请求消息。
第三接收子单元 826, 用于接收目标基站或目标基站网关发送的接入控制 信息响应消息, 所述接入控制信息响应消息携带有目标基站或目标基站网关 存储的目标小区的接入模式和 /或 CSG ID。
举例来说, 所述第三接收子单元 824可以通过中间设备接收目标基站或目 标基站网关发送的接入控制信息响应消息。
所述接入控制单元 830也可以包括:检测子单元 831、第四发送子单元 833、 第六发送子单元 834。
第六发送子单元 834, 用于在所述检测子单元 831检测到有匹配记录时,
向目标基站或目标基站网关发送切换请求消息;
举例来说, 若所述接收单元 810具体用于接收切换需求消息, 但需要进行 MME的重定位, 所述获取单元 820也可以包括: 第七发送子单元 827、 第四接 收子单元 828。
第七发送子单元 827, 用于向目标 MME发送接入控制信息请求消息。 第四接收子单元 828,用于接收所述目标 MME发送的接入控制信息回应消 息, 所述接入控制信息回应消息携带有目标基站或目标基站网关存储的目标 小区的接入模式和 /或 CSG ID。
所述接入控制单元也可以包括: 检测子单元 831、 第四发送子单元 833、 第八发送子单元 835。
第八发送子单元 835, 用于在所述检测子单元 831检测到有匹配记录时, 向所述目标 MME发转发重定位请求消息。
可以理解的是, 本实施例所述的移动性管理实体的各个模块所述的功能 可以 ^据实施例三至七所述的方法具体实现。
实施例九、
相应的, 本发明实施例还提供一种移动性管理实体, 参见图 9, 是本发明 实施例九提供的一种移动性管理实体示意图, 可以包括:
接收单元 910, 用于接收 TAU请求消息, 所述 TAU请求消息由终端在同步 到目标小区后发送, 所述 TAU请求消息携带有所述目标小区的接入模式和 /或 CSG ID, 所述目标小区为 CSG小区。
举例来说, 接收单元 1110可以通过基站或基站网关接收终端发送的 TAU 请求消息。
接入控制单元 920, 用于根据所述 TAU请求消息携带的信息对所述终端进 行接入控制。
可以理解的是, 本实施例所述的移动性管理实体的各个模块所述的功能 可以 ^据实施例六所述的方法具体实现。
实施例十、
相应的, 本发明实施例还提供一种移动性管理实体, 参见图 10, 是本发 明实施例十提供的一种移动性管理实体示意图, 可以包括:
接收单元 1010, 用于接收基站或基站网关发送的接入控制请求消息, 所
述接入控制请求消息携带有终端准备切换到的目标小区的标识, 以及所述目 标小区的接入模式和 /或 CSG ID, 所述目标小区为当前小区基站下的 CSG小 区;
检测单元 1020, 用于在发现所述目标小区的接入模式为闭合模式时, 检 测所述终端允许接入的 CSG列表中是否有与所述目标小区的 CSG ID相匹配的 记录;
发送单元 1030, 用于在所述检测单元 1020检测到有匹配记录时, 向所述 基站或基站网关发送接入控制请求回应消息, 所述接入控制请求回应消息携 带有允许切换的指示信息。 时, 向所述基站或基站网关发送接入控制请求回应消息, 该接入控制请求回 应消息携带有切换失败的指示信息, 该指示信息可以是指示终端无权接入。
可以理解的是, 本实施例所述的移动性管理实体的各个模块所述的功能 可以 ^据实施例七所述的方法具体实现。
实施例十一、
相应的, 本发明实施例还提供一种接入网设备, 参见图 11, 是本发明实 施例十一提供的一种接入网设备示意图, 可以包括:
接收单元 1110, 用于接收切换请求消息, 所述切换请求消息携带有终端 准备切换到的目标小区的接入模式和 /或 CSG ID, 所述目标小区为 CSG小区。
比较单元 1120, 用于比较所述目标小区的接入模式和 /或 CSG ID, 是否与 目标基站或目标基站网关存储的目标小区的接入模式和 /或 CSG ID相同。
发送单元 1130, 在所述比较单元 1120比较出不同时, 向 MME发送切换失 败消息, 所述切换失败消息携带有切换失败的指示信息。
所述接入网设备还可以包括:
检测单元 1140, 用于在所述比较单元 1120比较出相同时, 按照切换准备 规则, 检测终端当前是否满足切换条件。 切换条件时, 向 MME发送切换请求确认消息, 或在所述检测单元 1140检测出 终端当前不满足切换条件时, 向 MME发送切换失败消息, 所述切换失败消息 携带有切换失败的指示信息。
可以理解的是, 本实施例所述的接入网设备可以是基站、 基站网关, 且 不限于此。
可以理解的是, 本实施例所述的接入网设备的各个模块所述的功能可以 才艮据实施例三所述的方法具体实现。
相应的, 本发明实施例还提供一种通信***, 可以包括: 如实施例八所 述的移动性管理实体, 或如实施例九所述的移动性管理实体、 或如实施例十 所述的移动性管理实体, 或如实施例十一所述的基站。
需要说明的是, 对于前述的各方法实施例, 为了简单描述, 故将其都表 述为一系列的动作组合, 但是本领域技术人员应该知悉, 本发明并不受所描 述的动作顺序的限制, 因为依据本发明, 某些步骤可以采用其他顺序或者 同时进行。 其次, 本领域技术人员也应该知悉, 说明书中所描述的实施例 均属于优选实施例, 所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中, 对各个实施例的描述都各有侧重, 某个实施例中没 有详述的部分, 可以参见其他实施例的相关描述。
综上所述, 本发明实施例提供的技术方案中, 在终端进行小区切换时,
MME会根据目标小区的接入模式和 /或 CSG ID对终端进行接入控制, 能够尽 量有效的将终端切换到其有权接入的目标小区, 进而尽量避免造成运营商的 计费损失; 在切换到目标小区后, 终端可以在目标小区发起二次业务。
进一步的, MME用于进行接入控制的接入控制信息可以是目标基站或目 标基站网关存储的, 或者是由目标基站或目标基站网关验证了真实性的, 进 而可以保证切换的有效性; ***中的多个实体都可以进行接入控制, 实现方 式灵活多样。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步 骤是可以通过程序来指令相关的硬件来完成, 该程序可以存储于一计算机可 读存储介质中, 存储介质可以包括: ROM、 RAM, 磁盘或光盘等。
以上对本发明实施例所提供的一种切换控制的实现方法, 相关设备及通 信***进行了详细介绍, 本文中应用了具体个例对本发明的原理及实施方式 进行了阐述, 以上实施例的说明只是用于帮助理解本发明的方法及其核心思 想; 同时, 对于本领域的一般技术人员, 依据本发明的思想, 在具体实施方 式及应用范围上均会有改变之处, 综上所述, 本说明书内容不应理解为对本 发明的限制。
Claims
1、 一种切换控制的实现方法, 其特征在于, 包括:
接收第一切换消息, 所述第一切换消息携带有终端准备切换到的目标小区 的标识, 所述目标小区为闭合用户组 CSG小区, 并获取目标基站或目标基站网 关存储的所述目标小区的接入模式和 /或闭合用户组标识 CSG ID信息;
根据所述目标小区的接入模式和 /或 CSG ID信息对所述终端进行接入控制。
2、 根据权利要求 1所述的切换控制的实现方法, 其特征在于,
所述获取目标基站或目标基站网关存储的所述目标小区的接入模式和 /或 CSG ID信息, 包括:
向目标基站或目标基站网关发送切换请求消息;
接收所述目标基站或目标基站网关发送的切换请求确认消息, 所述切换请 求确认消息中携带有所述目标基站或目标基站网关存储的所述目标小区的接入 模式和 /或 CSG ID信息。
3、 根据权利要求 1所述的方法, 其特征在于,
所述获取目标基站或目标基站网关存储的所述目标小区的接入模式和 /或 CSG ID信息, 包括:
向目标移动管理实体 MME发送转发重定位请求消息;
接收目标 MME发送的转发重定位响应消息, 所述转发重定位响应消息携带 有目标基站或目标基站网关存储的所述目标小区的接入模式和 /或 CSG ID。
4、 根据权利要求 1所述的方法, 其特征在于,
所述根据所述目标小区的接入模式和 /或 CSG ID对所述终端进行接入控制, 包括:
检测所述终端允许接入的 CSG列表中是否有与所述目标小区的 CSG ID相匹 配的记录;
若是, 则向源基站或源基站网关发送切换命令消息;
若否, 则向源基站或源基站网关发送切换准备失败消息, 所述切换准备失 败消息携带有切换失败的指示信息。
5、 根据权利要求 1所述的方法, 其特征在于,
所述获取所述目标基站或目标基站网关存储的目标小区的接入模式和 /或闭 合用户组标识 CSG ID信息, 包括:
获取所述终端上报的测量报告, 所述测量报告包括所述目标小区的接入模 式和 /或 CSG ID信息;
所述根据所述目标小区的接入模式和 /或 CSG ID信息对所述终端进行接入 控制, 包括:
检测所述终端允许接入的 CSG列表中的是否有与所述目标小区的 CSG ID相 匹配的 i己录;
若是, 则继续进行切换流程;
若否, 则返回携带有用于指示切换失败的指示信息。
6、 根据权利要求 5所述的方法, 其特征在于, 当检测所述终端允许接入的 CSG列表中的有与所述目标小区的 CSG ID相匹配的记录时,
所述方法进一步包括:
所述源移动管理实体向所述目标基站或目标基站网关发送所述目标小区的 接入模式和 /或 CSG ID信息;
所述目标基站或目标基站网关验证所述目标小区的接入模式和 /或 CSG ID 信息的真实性,
若真实, 则继续进行切换流程,
若不真实, 则返回携带有用于指示切换失败的指示信息;
或
所述方法进一步包括:
所述源移动管理实体向目标基站或目标基站网关发送切换请求消息, 所述 切换请求消息包括所述目标小区的接入模式和 /或 CSG ID信息,
所述目标基站或目标基站网关验证所述目标小区的接入模式和 /或 CSG ID 信息的真实性,
若真实, 则继续进行切换流程;
若不真实, 则返回携带有用于指示切换失败的指示信息。
7、 根据权利要求 1所述的方法, 其特征在于,
所述获取所述目标小区的接入模式和 /或 CSG ID信息, 包括:
向目标基站或目标基站网关发送接入控制信息请求消息, 所述接入控制信 息请求消息用于请求获取接入控制信息;
接收目标基站或目标基站网关发送的接入控制信息响应消息, 所述接入控
制信息响应消息携带有目标基站或目标基站网关存储的所述目标小区的接入模 式和 /或 CSG ID信息。
8、 根据权利要求 7所述的方法, 其特征在于,
所述根据所述目标小区的接入模式和 /或 CSG ID对所述终端进行接入控制, 包括:
检测所述终端允许接入的 CSG列表中的是否有与所述目标小区的 CSG ID相 匹配的 i己录;
若是, 则向目标基站或目标基站网关发送切换请求消息;
若否, 则向源基站或源基站网关发送切换准备失败消息, 所述切换准备失 败消息携带有用于指示切换失败的指示信息。
9、 根据权利要求 1所述的方法, 其特征在于,
所述获取所述目标小区的接入模式和 CSG ID信息, 包括:
向目标 MME发送接入控制信息请求消息, 所述接入控制信息请求消息用于 请求获取接入控制信息;
接收所述目标 MME发送的接入控制信息回应消息, 所述接入控制信息回应 消息携带有目标基站或目标基站网关存储的所述目标小区的接入模式和 /或 CSG
ID。
10、 根据权利要求 9所述的方法, 其特征在于,
所述根据所述目标小区的接入模式和 /或 CSG ID对所述终端进行接入控制, 包括:
检测所述终端允许接入的 CSG列表中是否有与所述目标小区的 CSG ID相匹 配的记录;
若是, 则向所述目标 MME发送转发重定位请求消息;
若否, 则向源基站或源基站网关发送切换准备失败消息, 所述切换准备失 败消息携带有切换失败的指示信息。
11、 一种切换控制的实现方法, 其特征在于, 包括:
接收基站或基站网关发送的接入控制请求消息, 所述接入控制请求消息携 带有终端准备切换到的目标小区的标识, 以及所述目标小区的接入模式和 /或闭 合用户群组标识 CSG ID, 所述目标小区为所述基站下的 CSG小区;
若所述目标小区的接入模式为闭合模式, 则检测所述终端允许接入的 CSG
列表中是否有与所述目标小区的 CSG ID相匹配的记录;
若是, 则向所述基站或基站网关发送接入控制请求回应消息, 所述接入控 制请求回应消息携带有允许切换的指示信息。
12、 一种移动性管理实体, 其特征在于, 包括:
接收单元, 用于接收第一切换消息, 所述第一切换消息携带有终端准备切 换到的目标小区的标识, 所述目标小区为 CSG小区;
获取单元, 用于获取目标基站或目标基站网关存储的所述目标小区的接入 模式和 /或 CSG ID信息;
接入控制单元, 用于根据所述目标小区的接入模式和 /或 CSG ID信息对所述 终端进行接入控制。
13、 根据权利要求 12所述的移动性管理实体, 其特征在于, 所述接收单元 具体用于接收切换需求消息或转发重定位请求消息, 所述获取单元包括:
第一发送子单元, 用于向所述目标基站或目标基站网关发送切换请求消息; 第一接收子单元, 用于接收所述目标基站或目标基站网关发送的切换请求 确认消息, 所述切换请求确认消息中携带有目标基站或目标基站网关存储的所 述目标小区的接入模式和 /或 CSG ID信息。
14、 根据权利要求 12所述的移动性管理实体, 其特征在于, 所述接收单元 具体用于接收切换需求消息, 若需要进行 MME重定位, 所述获取单元包括: 第二发送子单元, 用于向目标 MME发送转发重定位请求消息;
第二接收子单元, 用于接收目标 MME发送的转发重定位响应消息, 所述转 发重定位响应消息携带有目标基站或目标基站网关存储的所述目标小区的接入 模式和 /或 CSG ID。
15、 根据权利要求 12至 14任一项所述的移动性管理实体, 其特征在于, 所 述接入控制单元包括:
检测子单元, 用于检测所述终端允许接入的 CSG列表中是否有与所述目标 小区的 CSG ID相匹配的记录;
第三发送子单元, 用于在所述检测子单元检测到有匹配记录时, 向源基站 或源基站网关发送切换命令消息;
第四发送子单元, 用于在所述检测子单元检测到没有匹配记录时, 向源基 站或源基站网关发送切换准备失败消息, 所述切换准备失败消息携带有切换失
败的指示信息。
16、 根据权利要求 12所述的移动性管理实体, 其特征在于, 所述接收单元 具体用于接收切换需求消息或转发重定位请求消息, 所述获取单元包括:
第五发送子单元, 用于向目标基站或目标基站网关发送接入控制信息请求 消息;
第三接收子单元, 用于接收目标基站或目标基站网关发送的接入控制信息 响应消息, 所述接入控制信息响应消息携带有目标基站或目标基站网关存储的 所述目标小区的接入模式和 /或 CSG ID。
17、 根据权利要求 16所述的移动性管理实体, 其特征在于, 所述接入控制 单元包括:
检测子单元, 用于检测所述终端允许接入的 CSG列表中是否有与所述目标 小区的 CSG ID相匹配的记录;
第六发送子单元, 用于在所述检测子单元检测到有匹配记录时, 向目标基 站或目标基站网关发送切换请求消息;
第四发送子单元, 用于在所述检测子单元检测到没有匹配记录时, 向源基 站或源基站网关发送切换准备失败消息, 所述切换准备失败消息携带有用于指 示切换失败的指示信息。
18、 根据权利要求 12所述的移动性管理实体, 其特征在于, 所述接收单元 具体用于接收切换需求消息, 若需要进行 MME的重定位, 所述获取单元包括: 第七发送子单元, 用于向目标 MME发送接入控制信息请求消息;
第四接收子单元, 用于接收所述目标 MME发送的接入控制信息回应消息, 所述接入控制信息回应消息携带有目标基站或目标基站网关存储的所述目标小 区的接入模式和 /或 CSG ID。
19、 根据权利要求 18所述的移动性管理实体, 其特征在于, 所述接入控制 单元包括:
检测子单元, 用于检测所述终端允许接入的 CSG列表中是否有与所述目标 小区的 CSG ID相匹配的记录;
第八发送子单元, 用于在所述检测子单元检测到有匹配记录时, 向所述目 标 MME发转发重定位请求消息;
第四发送子单元, 用于在所述检测子单元检测到有匹配记录时,, 则向源基
站或源基站网关发送切换准备失败消息, 所述切换准备失败消息携带有切换失 败的指示信息。
20、 根据权利要求 12所述的移动性管理实体, 其特征在于,
所述获取单元, 具体用于获取所述终端上报的测量报告, 所述测量报告包 括所述目标小区的接入模式和 /或 CSG ID信息;
所述接入控制单元, 具体用于检测所述终端允许接入的 CSG列表中的是否 有与所述目标小区的 CSG ID相匹配的记录;
若是, 则继续进行切换流程;
若否, 则返回携带有用于指示切换失败的指示信息。
21、 根据权利要求 20所述的移动性管理实体, 其特征在于, 所述移动管理 实体还包括:
向向所述目标基站或目标基站网关发送所述目标小区的接入模式和 /或 CSG ID信息的单元, 所述目标基站或目标基站网关验证所述目标小区的接入模式和 / 或 CSG ID信息的真实性,
若真实, 则继续进行切换流程,
若不真实, 则返回携带有用于指示切换失败的指示信息;
或
所述源移动管理实体向目标基站或目标基站网关发送切换请求消息的单 元, 所述切换请求消息包括所述目标小区的接入模式和 /或 CSG ID信息,
所述目标基站或目标基站网关验证所述目标小区的接入模式和 /或 CSG ID 信息的真实性,
若真实, 则继续进行切换流程;
若不真实, 则返回携带有用于指示切换失败的指示信息。
22、 一种移动性管理实体, 其特征在于, 包括:
接收单元, 用于接收基站或基站网关发送的接入控制请求消息, 所述接入 控制请求消息携带有终端准备切换到的目标小区的标识, 以及所述目标小区的 接入模式和 /或 CSG ID, 所述目标小区为所述基站下的 CSG小区;
检测单元, 用于在发现所述目标小区的接入模式为闭合模式时, 检测所述 终端允许接入的 CSG列表中是否有与所述目标小区的 CSG ID相匹配的记录; 发送单元, 用于在所述检测单元检测到有匹配记录时, 向所述基站或基站
网关发送接入控制请求回应消息 , 所述接入控制请求回应消息携带有允许切换 的指示信息。
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EP2389032A1 (en) | 2011-11-23 |
CN103200631A (zh) | 2013-07-10 |
EP2389032A4 (en) | 2012-02-01 |
CN101784086A (zh) | 2010-07-21 |
EP2744265A1 (en) | 2014-06-18 |
CN103200631B (zh) | 2016-01-27 |
EP2744265B1 (en) | 2016-04-06 |
CN101784086B (zh) | 2013-04-17 |
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