WO2012155713A1 - Système et procédé d'opération de commutation - Google Patents

Système et procédé d'opération de commutation Download PDF

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Publication number
WO2012155713A1
WO2012155713A1 PCT/CN2012/073612 CN2012073612W WO2012155713A1 WO 2012155713 A1 WO2012155713 A1 WO 2012155713A1 CN 2012073612 W CN2012073612 W CN 2012073612W WO 2012155713 A1 WO2012155713 A1 WO 2012155713A1
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WIPO (PCT)
Prior art keywords
handover
base station
access control
mme
home base
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PCT/CN2012/073612
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English (en)
Chinese (zh)
Inventor
祝建建
奚进
谢峰
翟恒星
Original Assignee
中兴通讯股份有限公司
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Publication of WO2012155713A1 publication Critical patent/WO2012155713A1/fr

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Classifications

    • 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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • 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 a wireless cellular communication system, and more particularly to a handover operation method and system. Background technique
  • the home base station (HeNB, Home eNB) is a small, low-power base station deployed in indoor places such as homes and offices.
  • the primary role of the home base station is to provide users with higher service rates and lower the cost of using high-rate services, while at the same time making up for the deficiencies of existing distributed cellular wireless communication systems.
  • the home base station network architecture in the Advanced Long Term Evolution (LTE) system introduced by the 3GPP, Third Generation Partnership Projects is shown in Figure 1.
  • the associated core network element includes a Mobility Management Entity (MME, Mobile Management Entity) and good service gateway months (S-GW, Serving Gateway) 0 MME ⁇ f concernedly user equipment (UE, User Equipment) Mobility Management Features.
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • the S-GW assumes the data routing process of the user plane, terminates the downlink data of the UE in the idle state, and manages and stores the E-UTRAN radio access bearer (ERAB) context of the UE.
  • E-UTRAN is composed of a HeNB and a Home Base Station Gateway (HeNB GW, HeNB Gateway).
  • the HeNB completes the connection with the core network element based on the core network interface protocol defined in the standard, and accesses the UE based on the air interface interface protocol defined in the standard. To a large extent, the HeNB does not differ from the functionality assumed by a normal macro base station (Macro eNB). Based on network planning requirements, in some deployment scenarios, a new network element may be entered between the HeNB and the core network element: HeNB GW, and the HeNB GW may assume part of the home base station management function.
  • FIG. 2 and FIG. 3 respectively show the switching operation procedure of the UE switching to the home base station based on the S1 interface and based on the X2 interface.
  • the following conditions are required to perform the X2 handover operation: The UE does not need the MME to perform the access control operation when switching between the source cell and the target cell.
  • the condition for performing the X2 handover operation is further limited to: the source base station (which may be a normal macro base station or a home base station), the cell (ie, the source cell) and the target cell (ie, the target cell)
  • the configured closed subscriber group identifier (CSG ID, Close Subscriber Group Identifier) is the same, or the target cell is in an open access working mode.
  • the signaling used in the X2 handover operation flow is mostly based on the X2 interface.
  • the X2 handover operation flow can make the handover operation complete faster. It can be seen from the operation flow in FIG. 2 that the existing S1 handover procedure is triggered by the source base station (which may be an eNB or a HeNB) to perform an access control decision operation performed by the MME to perform handover of the UE to the target home base station cell, and The MME notifies the target home base station of the decision result to continue the subsequent handover operation.
  • the source base station which may be an eNB or a HeNB
  • the signaling based on the S1 handover operation flow is transmitted based on the S1 interface, and the S1 handover operation flow in the existing system is triggered by the source base station transmitting a Handover Required message to the MME.
  • the MME performs the handover control, but also triggers the access control during the handover operation. If the MME performs the handover control by the target home base station, the handover operation may be completed by using the X2 interface and the S1 interface.
  • the required signaling transmission can reduce the signaling that needs to be transmitted through the core network relative to the signaling transmission in the existing S1 handover operation. However, there is currently no technical means to support the implementation of the handover operation mode. . Summary of the invention
  • the main purpose of the present invention is to provide a handover operation method and system, which can implement a decision that the target home base station side triggers the MME to perform handover access control, and combines the X2 connection.
  • the port and the SI interface complete the signaling transmission required during the handover operation.
  • An embodiment of the present invention provides a handover operation method, where the method includes:
  • the source base station sends a handover request message to the target home base station through the X2 interface;
  • the target home base station After receiving the handover request message, the target home base station triggers an access control decision of the mobility management entity (MME) to perform a handover operation;
  • MME mobility management entity
  • the MME sends the result of the access control decision to the base station.
  • the handover request message includes: a globally unique identifier GUMMEL of the MME, and a monthly service identifier allocated by the MME to the UE when the source base station accesses the network.
  • the method further includes: the target home base station determining whether the MME is required to perform an access control decision of the handover operation; and the target cell belonging to the target home base station When the CSG ID of the source cell belonging to the source base station is different, and the target cell is not in the open access working mode, it is determined that the access control decision of the MME to perform the handover operation needs to be triggered.
  • the target base station triggers the MME to perform the access control decision of the handover operation by using the S1 interface, where: the target home base station sends the handover access to the corresponding MME through the S1 interface according to the GUMMEI included in the handover request message. Control request message.
  • the handover access control request message includes: a service identifier allocated by the MME to the UE when the source base station accesses the network, a CSG ID of the target home base station, and an allocation of the target home base station to the UE
  • the service identifies the eNB UE S1AP ID.
  • the handover access control request message further includes the GUMMEI;
  • the handover access control request message further includes an access working mode indication of the target cell.
  • the method further includes: the MME performing the access control decision, where:
  • the result of the access control decision includes: allowing the UE to switch to the target cell, and whether the UE switches to the target cell by membership;
  • the result of the access control decision includes: the UE is not allowed to switch to the target cell.
  • the MME sends the result of the access control decision to the base station, including:
  • the MME sends a handover access control response message to the target home base station of the handover operation by using the S1 interface;
  • the handover access control response message includes: a result of the access control decision, and a radio bearer that the MME determines that the UE has established.
  • the radio bearer list to be switched to the target home base station, and the monthly service identifier allocated by the MME to the UE when the UE accesses the network based on the target home base station;
  • the method also includes:
  • the target home base station After receiving the handover access control response message, the target home base station determines, according to the result of the access control decision, the radio bearer list, the current resource status of the target home base station, and the handover decision mechanism of the system configuration.
  • the radio bearer list is allowed to be switched to the radio bearer set of the target home base station; and the handover request response message carrying the radio bearer set is sent to the source base station through the X2 interface;
  • the source base station After receiving the handover request response message, the source base station controls the UE to switch from the source cell to the target cell according to the radio bearer set.
  • the MME sends the end of the access control decision If you go to the base station, include:
  • the MME sends a handover access control reject message or a handover access control response message indicating that the handover is rejected to the target home base station of the handover operation by using the SI interface.
  • the method further includes:
  • the target home base station After receiving the handover access control reject message or the handover access control response message carrying the information indicating that the handover is rejected, the target home base station sends a handover request rejection message to the source base station through the X2 interface, and Terminate the switching operation;
  • the source base station After receiving the handover request reject message, the source base station determines that the handover request of the UE to the target cell is rejected.
  • the MME sends the result of the access control decision to the base station, including:
  • the MME sends a handover access control reject message or carries a handover access control response message indicating that the handover is rejected to the target home base station through the S1 interface; and sends a message indicating that the UE handover to the target cell is rejected to the source base station;
  • the method also includes:
  • the target home base station After the target home base station receives the handover access control reject message or carries a handover access control response message indicating that the handover is rejected, the target home base station terminates the handover operation;
  • the source base station After receiving the message indicating that the UE handover to the target cell is rejected, the source base station determines that the handover of the UE to the target cell is unsuccessful.
  • the embodiment of the present invention further provides a switching operating system, including a source base station, a target home base station, and an MME, where:
  • the source base station is configured to send, by using an X2 interface, a handover request to the target home base station to cancel the target home base station, and after receiving the handover request message, trigger an access control decision of the MME to perform a handover operation.
  • the MME is configured to perform the access control decision, and send a result of the access control decision to a base station.
  • the target home base station is further configured to determine whether the MME is required to trigger an access control decision of the handover operation; and the CSG ID of the target cell belonging to the target home base station and the source cell belonging to the source base station If the target cell is not in the open access mode, it is determined that the MME needs to trigger the access control decision of the handover operation.
  • the target home base station is further configured to send a handover access control request message to the corresponding MME by using an S1 interface according to the globally unique identifier GUMMEI of the MME included in the handover request message, and trigger the MME to perform handover. Operational access control decision.
  • the MME When the MME performs the access control decision, it is further used to determine whether to allow the UE to handover to the target cell. When it is determined that the UE is allowed to handover to the target cell, it is determined whether the UE switches to the target cell by the member identity.
  • the source base station sends a handover request message to the target home base station through the X2 interface; after receiving the handover request message, the target home base station triggers the MME of the UE to perform the handover operation access through the S1 interface. Controlling the decision; the MME sends the result of the access control decision to the base station.
  • the decision of the target home base station side to trigger the MME to perform the handover access control is implemented, and the signaling transmission required during the handover operation is completed in conjunction with the X2 interface and the S1 interface, compared with the signaling in the existing S1 handover operation. Transmission can reduce the signaling that needs to be transmitted over the core network.
  • Figure 1 is a network diagram of a home base station network
  • FIG. 2 is a schematic diagram of a UE switching to a home base station cell based on an S1 handover operation procedure
  • FIG. 3 is a schematic diagram of a UE switching to a home base station cell according to an X2 handover operation procedure
  • FIG. 4 is a schematic flowchart of a handover operation according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a handover operation process for allowing a UE to switch according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a handover operation procedure in which the UE is not allowed to perform handover according to Embodiment 2 of the present invention
  • FIG. 7 is a schematic flowchart of a handover operation procedure in which the UE is not allowed to perform handover according to Embodiment 3 of the present invention.
  • the embodiment of the present invention proposes a new handover operation method, and the source base station is based on The X2 interface sends a handover request to the target home base station, and the target home base station requests the MME to perform an access control decision of the UE to the target home base station d and the area based on the S1 interface, and the MME controls the subsequent handover operation based on the result of the access control decision.
  • the method includes:
  • Step 401 The source base station sends a handover request message to the target home base station by using an X2 interface.
  • the source eNB determines that the MME serving the UE does not change during the handover operation, and sends a handover request message to the target home base station through the X2 interface.
  • the MME is the MME serving the UE when the UE accesses the network through the source base station. Unless otherwise stated, the MMEs described subsequently have this meaning.
  • the handover request message includes: a globally unique identifier of the MME, GUMMEI, and a service identifier allocated by the MME to the UE when the source base station accesses the network.
  • Step 402 After receiving the handover request message, the target home base station triggers an MME to perform an access control decision of the handover operation.
  • the target home base station After receiving the handover request message, the target home base station determines whether it is necessary to trigger the MME to perform an access control decision of the handover operation; when the target cell belonging to the target home base station and the source cell belonging to the source base station have different CSG IDs, and the target cell does not When the access mode is open, it is determined that the access control decision of the MME to perform the handover operation needs to be triggered.
  • the target home base station sends a handover access control request message to the corresponding MME through the S1 interface according to the GUMMEI included in the handover request message, and triggers the MME to perform an access control decision of the handover operation.
  • the handover access control request message includes: a service identifier allocated by the MME for the UE when the source base station accesses the network, a CSG ID of the target cell, and a monthly service identifier eNB UE S1AP ID allocated by the target home base station to the UE.
  • the handover access control request message further includes the GUMMEI;
  • the handover access control request message further includes an access working mode indication of the target cell.
  • Step 403 The MME sends the result of the access control decision to the base station.
  • the MME After receiving the handover access control request message, the MME performs an access control decision, where the MME determines whether the UE is allowed to handover to the target cell.
  • the result of the access control decision includes: allowing the UE to switch to the target cell, and whether the UE switches to the target cell by membership;
  • the result of the access control decision includes: The UE is not allowed to switch to the target cell.
  • the MME transmits the result of the above access control decision to the base station.
  • it may be sent to the target home base station, or may be simultaneously sent to the target home base station and the source base station, as follows:
  • the MME sends the result of the access control decision to the target home base station, including: the MME sends a handover access control response message to the target home base station through the S1 interface.
  • the handover access control response message includes: a result of the access control decision, the method further includes: determining, by the MME, a radio bearer list that needs to be handed over to the target home base station in the radio bearer that the UE has established, and the UE accessing the network based on the target home base station The service identifier assigned by the MME to the UE.
  • the target home base station After receiving the handover access control response message, the target home base station determines, according to the result of the access control decision, the radio bearer list, the current resource status of the target home base station, and the handover decision mechanism of the system configuration, that the radio bearer list is allowed to be switched to A radio bearer set of the target home base station; and transmitting, by using an X2 interface, a handover request response message carrying a radio bearer set to the source base station.
  • the source base station After receiving the handover request response message, the source base station controls the UE to switch from the source cell to the target cell according to the radio bearer set.
  • the MME When the UE is not allowed to switch to the target cell, the MME sends the result of the access control decision to the target home base station, which may be: the MME sends a handover access control reject message through the S1 interface, or carries the handover access control indicating the information that the handover is rejected. Respond to the message to the target home base station.
  • the target home base station which may be: the MME sends a handover access control reject message through the S1 interface, or carries the handover access control indicating the information that the handover is rejected. Respond to the message to the target home base station.
  • the target home base station After receiving the handover access control reject message or carrying the handover access control response message indicating that the handover is rejected, the target home base station terminates the handover operation and sends a handover request rejection message to the source base station through the X2 interface.
  • the source base station After receiving the handover request reject message, the source base station determines that the handover of the UE to the target cell is not successful.
  • the MME may send a handover access control reject message or a handover access control response message indicating that the handover is rejected to the target home base station through the S1 interface, and may also send the indication to the source base station that the UE handover to the target cell is rejected. Message.
  • the target home base station After receiving the handover access control reject message or carrying the handover access control response message indicating that the switch is rejected, the target home base station terminates the handover operation;
  • the source base station After receiving the message indicating that the UE handover to the target cell is rejected, the source base station determines that the handover of the UE to the target cell is unsuccessful.
  • the handover operation in the embodiment of the present invention refers to a handover operation of the UE from the source cell to the target cell.
  • Embodiment 1
  • the target home base station side triggers the MME to perform an access control decision of the handover operation, thereby improving the performance of the handover operation procedure.
  • the result of the access control decision is to allow the UE to handover to the target home base station.
  • Cell ie target cell
  • the switching process includes:
  • Steps 501 to 502 The source base station performs a handover operation of the UE based on the received measurement report of the UE, and determines a target home base station to which the handover target cell belongs.
  • the source eNB determines that the MME serving the UE does not change during the handover operation, and the source base station sends a handover request message to the target home base station through the X2 interface, that is, step 503 is performed.
  • Step 503 The source base station sends a handover request (HO Request) message to the target home base station to which the target cell belongs by using the X2 interface with the target home base station, where the message carries the global unique identifier of the MME: GUMMEI, and the UE is connected based on the source base station.
  • Step 504 After receiving the handover request message, the target home base station performs the following decision operation: determining whether the MME is required to perform an access control decision of the handover operation, specifically: if the target cell and the source cell have the same CSG ID or the target cell is In the open access working mode, the X2 handover operation procedure defined in the existing standard is used to respond to the handover request message of the source base station, and the subsequent handover operation procedure is completed; otherwise, step 505 is performed;
  • Step 505 If the CSG ID of the target cell and the source cell are different, and the target cell is not in the open access working mode, the target home base station determines that the access control decision of the MME is required to perform the handover operation, and the target home base station according to the The GUMMEI included in the handover request message sends a HO Access Control Request message to the corresponding MME through the S1 interface.
  • the handover access control request name of the message here is only for describing the embodiment, and any message that bears the same function as the handover access control request message is applicable to the embodiment of the present invention.
  • the handover access control request message includes the following information: the service identifier MME UE S1AP ID allocated by the target home base station from the handover request message to the UE, the CSG ID of the target home base station, and the service identifier allocated by the target home base station to the UE eNB S1AP ID;
  • the target home base station sends the handover access control request message
  • the peer network element that is connected through the S1 interface is the HeNB GW
  • the global access identifier of the MME needs to be carried in the handover access control request message: GUMMEI.
  • the switch access control request message needs to carry the access working mode indication of the target cell; and the target cell operates in the closed access working mode, and the signaling can be saved.
  • the processing of the overhead If the handover access control request message does not carry the access working mode indication of the target cell, the message implicitly indicates that the target cell is in the closed access working mode. It should be understood that other processing methods that enable the network element receiving the handover access control request message to infer the target cell access mode of operation can be used.
  • Step 506 When the handover access control request message arrives at the MME, the MME may search for the context of the corresponding UE based on the MME UE S1AP ID included in the message, and perform MME mapping of the MME UE S1AP ID through the context of the UE to determine the corresponding UE identifier. , such as IMSI, etc.; acquiring CSG information of the UE from the core network according to the UE identifier obtained by the mapping;
  • the access control decision of the handover operation performed by the MME includes: the MME determines whether to allow the UE to handover to the target cell based on the CSG registration information of the UE, the CSG ID of the target home base station, and the access working mode of the target cell; further, allowing the UE to switch
  • the membership information of the UE is determined, that is, whether the UE is handed over to the target cell by using the membership; and the radio bearer list that needs to be handed over to the target home base station in the radio bearer that the UE has established may be further determined.
  • the specific implementation of the access control decision of the handover operation performed by the MME is a prior art, and details are not described herein again.
  • Step 507 After completing the access control decision of the handover operation, the MME sends the S1 interface. Sending a handover control response (HO Access Control ACK) message to the target home base station, where the message carries the result of the access control decision, and may carry the radio that needs to be handed over to the target base station in the radio bearer established by the MME.
  • the value of the bearer list and the UE based on the target home UE S1AP ID may be the same as or different from the value of the service identifier MME UE SIAP ID allocated by the MME to the UE when the source base station accesses the network.
  • the handover access control response name of the message here is only for describing the embodiment, and any message that bears the same function as the handover access control response message is applicable to the embodiment of the present invention.
  • the result of the access control decision includes: the UE may switch to the target cell, and the UE may switch to the identity information of the target cell (ie, the UE switches to the target cell with or without membership).
  • Step 508 After receiving the handover access control response message, the target home base station needs to switch to the radio bearer list of the target base station and the target family in the radio bearer that the UE has established based on the result of the access control decision in the message.
  • the current resource status of the base station and the handover decision mechanism of the system configuration are used to determine a radio bearer set in the radio bearer list that is allowed to be handed over to the target home base station.
  • the target home base station sends a handover request response message (HO REQUEST ACK) message to the source base station through the X2 interface, where the message carries the radio bearer set and the target of the UE that is allowed to be handed over to the target home base station determined by the target home base station.
  • HO REQUEST ACK handover request response message
  • Step 509 After receiving the handover request response message, the source base station, based on the handover related result included in the message, includes: a radio bearer set that is allowed to be handed over to the target base station, and a radio parameter required for the UE to switch to the target cell, The UE is controlled to switch from the source cell to the target cell.
  • Step 510 After the UE completes the synchronization required for the handover to the target cell and the operation related to the handover of the network, the target home base station sends a path conversion request message to the MME (Path Switch Request), the content contained in the message can be encapsulated according to the X2 switching operation procedure described in the existing standard or modified according to requirements.
  • the existing Path Switch Request message includes the cell without the aforementioned HO ACCESS CONTROL. Some or all of the IEs are already included in the REQUEST message.
  • Subsequent steps 511 to 514 may be performed according to the X2 handover operation procedure defined in the standard or may be modified according to requirements. For example, if the existing Path Switch Request ACK message contains a cell, the foregoing HO ACCESS CONTROL ACK message is not included. Some or all of the IEs included.
  • the target home base station side triggers the MME to perform an access control decision of the handover operation, thereby improving the performance of the handover operation procedure.
  • the result of the access control decision is to reject the UE handover to the target cell.
  • the process includes:
  • steps 601 ⁇ 606 is the same as steps 501 ⁇ 506, and is not described here.
  • Step 607 the scenario in which the handover operation is rejected is described in this embodiment. Therefore, when the structure of the access control decision performed by the MME is that the UE cannot be handed over to the target cell, the MME sends a handover access control rejection through the S1 interface.
  • HO Access Control Reject message to the target home base station; here, it should be noted that the handover access control reject name of the message here is only for describing the embodiment, and any message that bears the same function as the handover access control reject message is the implementation. Examples include scope.
  • Step 608 After receiving the handover access control reject message, the target home base station sends a handover request rejection (HO Reject) message to the source base station that initiates the handover operation through the X2 interface, and terminates the handover operation.
  • HO Reject handover request rejection
  • the source base station After receiving the handover request reject message, the source base station determines that the handover of the UE to the target cell is not successful. In addition, the new target cell and the target home base station to which it belongs are selected.
  • the handover access control reject message sent by the MME may also be a handover access control response message carrying information indicating that the handover is rejected.
  • the target home base station side triggers the MME to perform an access control decision of the handover operation, thereby improving the performance of the handover operation procedure.
  • the result of the access control decision is to reject the UE handover to the target cell.
  • Step 707 When the structure of the access control decision performed by the MME is that the UE cannot be handed over to the target cell, the MME sends a HO Access Control Reject message to the target home base station through the S1 interface; and the MME sends the source base station to the source base station. Sending a message indicating that the UE is handed over to the target cell is rejected, where the message includes the service identifier MME UE S1AP ID allocated by the MME to the UE when the source base station accesses the network, and the service identifier eNB UE S1AP ID allocated by the source base station to the UE .
  • the target home base station After receiving the handover access control reject message, the target home base station terminates the handover operation. After receiving the message indicating that the UE handover to the target cell is rejected, the source base station determines that the handover of the UE to the target cell is unsuccessful, and then selects a new target. The cell and the target home base station to which it belongs.
  • the handover access control reject message sent by the MME may also be a handover access control response message carrying information indicating that the handover is rejected.
  • the embodiment of the present invention further provides a handover operation system, including a source base station, a target home base station, and an MME, where:
  • a source base station configured to send a handover request message to the target home base station by using the X2 interface, where the target home base station is configured to trigger an access control decision of the MME to perform the handover operation after receiving the handover request message;
  • MME configured to perform an access control decision, and perform a handover operation according to a result of the access control decision For control.
  • the target home base station is further configured to determine whether an MME is required to perform an access control decision of the handover operation; when the target cell belonging to the target home base station and the source cell belonging to the source base station have different CSG IDs, and the target cell is not When the access mode is open, it is determined that the access control decision of the MME to perform the handover operation needs to be triggered.
  • the target home base station is further configured to send a handover access control request message to the corresponding MME through the S1 interface according to the global unique identifier GUMMEI of the MME included in the handover request message, and trigger the MME to perform an access control decision of the handover operation.
  • the MME when performing the access control decision, is further used to determine whether the UE is allowed to handover to the target cell. When it is determined that the UE is allowed to handover to the target cell, it is determined whether the UE switches to the target cell by membership.

Abstract

La présente invention se rapporte à un procédé d'opération de commutation qui comprend les étapes suivantes : une station de base source envoie un message de demande de commutation à un nœud B évolué (eNB) domestique cible au moyen d'une interface X2 ; le nœud eNB domestique provoque, lors de la réception du message de demande de commutation, l'exécution par une entité de gestion de mobilité (MME pour Mobility Management Entity) d'une détermination de contrôle d'accès d'une opération de commutation ; et l'entité MME envoie le résultat de la détermination de contrôle d'accès à la station de base. La présente invention se rapporte également à un système d'opération de commutation. La présente invention permet qu'un côté nœud eNB domestique cible provoque l'exécution, par une entité MME, d'une détermination de contrôle d'accès de commutation.
PCT/CN2012/073612 2011-08-02 2012-04-06 Système et procédé d'opération de commutation WO2012155713A1 (fr)

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CN106304060B (zh) * 2015-05-22 2020-11-17 中兴通讯股份有限公司 支持封闭成员组的双连接系统中的切换方法及系统
CN105263170B (zh) * 2015-09-16 2017-09-29 合肥浩瀚深度信息技术有限公司 一种lte系统内部s1接口切入流程和切出流程的关联方法
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