WO2011134348A1 - Procédé de traitement de transfert pour station de base et équipement pour station de base - Google Patents

Procédé de traitement de transfert pour station de base et équipement pour station de base Download PDF

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Publication number
WO2011134348A1
WO2011134348A1 PCT/CN2011/072679 CN2011072679W WO2011134348A1 WO 2011134348 A1 WO2011134348 A1 WO 2011134348A1 CN 2011072679 W CN2011072679 W CN 2011072679W WO 2011134348 A1 WO2011134348 A1 WO 2011134348A1
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WO
WIPO (PCT)
Prior art keywords
base station
service
handover
information
request message
Prior art date
Application number
PCT/CN2011/072679
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English (en)
Chinese (zh)
Inventor
时洁
陈卓
王燕
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华为技术有限公司
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Publication of WO2011134348A1 publication Critical patent/WO2011134348A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a base station handover processing method and a base station device. Background technique
  • the prior art can place multiple small base stations within a cellular network coverage.
  • a small number of base stations can be deployed in a network coverage such as an office building or a campus network.
  • These small base stations can provide specific service services for user equipment (User Equipment, hereinafter referred to as UE) with access rights, and small base stations are connected to
  • the UE provides local services such as data services with confidential information or company conference calls.
  • these small base stations can access the wireless communication network in a wired manner.
  • the source base station currently accessed by the UE may select the target base station according to the measurement result of the UE, and send a handover request message to the mobile management equipment (Mobile Management Equipment, hereinafter referred to as MME).
  • the handover request message carries the Closed Subscriber Group Identification (CSG ID) of the target base station.
  • CSG ID Closed Subscriber Group Identification
  • the CSG whitelist of the UE may be stored in the MME.
  • the MME may detect whether the CSG ID carried in the handover request message is in the CSG white list of the saved UE.
  • the target base station the MME may initiate a handover request to the target base station, so that the UE switches from the source base station to the target base station.
  • the embodiment of the invention provides a base station handover processing method and a base station device.
  • An embodiment of the present invention provides a base station handover processing method, including:
  • a first target base station capable of providing a first service in a neighboring base station is determined, and the user equipment is switched to the first target base station, where the first service is a service currently provided to the user equipment.
  • An embodiment of the present invention provides another method for processing a base station handover, including:
  • the handover success response message is fed back to the source base station to instruct the source base station to perform handover processing on the user equipment.
  • An embodiment of the present invention provides a base station device, including:
  • a first determining module configured to determine, according to the measurement information of the user equipment, a process of initiating a handover process
  • the first processing module configured to determine a first target base station that can provide the first service in the neighboring base station, and switch the user equipment to The first target base station, the first service is a service currently provided to the user equipment.
  • An embodiment of the present invention provides another base station device, including:
  • the second receiving module is configured to receive a handover request message sent by the source base station that is currently accessed by the user equipment, where the handover request message includes the service information that the source base station provides the first service for the user equipment;
  • a second sending module configured to: if the service capability corresponding to the service information of the first service is provided, feed back a handover success response message to the source base station, to instruct the source base station to perform handover processing on the user equipment.
  • the source base station when the source base station performs handover, may determine the first target base station according to the service information that the source base station itself provides the first service for the UE, so that the determined first target base station is also The service service corresponding to the first service can be provided, so that after the UE is handed over to the first target base station, the first target base station can continue to provide the service service corresponding to the first service to the UE to avoid the phenomenon of service interruption.
  • Embodiment 1 is a flowchart of Embodiment 1 of a method for processing a base station handover according to the present invention
  • FIG. 2 is a schematic structural diagram of an application scenario of a base station handover processing method according to Embodiment 1 of the present invention
  • FIG. 3 is a flowchart of Embodiment 2 of a base station handover processing method according to the present invention
  • Embodiment 4 is a flowchart of Embodiment 3 of a method for processing a base station handover according to the present invention
  • FIG. 5 is a flowchart of Embodiment 4 of a method for processing handover of a base station according to the present invention
  • Embodiment 6 is a flowchart of Embodiment 5 of a method for processing a base station handover according to the present invention
  • Embodiment 7 is a flowchart of Embodiment 6 of a method for processing handover of a base station according to the present invention.
  • Embodiment 8 is a flowchart of Embodiment 7 of a method for processing a base station handover according to the present invention.
  • Embodiment 8 is a flowchart of Embodiment 8 of a method for processing handover of a base station according to the present invention.
  • Embodiment 9 is a flowchart of Embodiment 9 of a method for processing a base station handover according to the present invention.
  • Embodiment 1 is a schematic structural diagram of Embodiment 1 of a base station device according to the present invention.
  • Embodiment 2 is a schematic structural diagram of Embodiment 2 of a base station device according to the present invention.
  • Embodiment 3 of a base station device is a schematic structural diagram of Embodiment 3 of a base station device according to the present invention.
  • Embodiment 4 of a base station device is a schematic structural diagram of Embodiment 4 of a base station device according to the present invention.
  • Embodiment 5 is a schematic structural diagram of Embodiment 5 of a base station device according to the present invention.
  • 16 is a schematic structural diagram of Embodiment 6 of a base station device according to the present invention
  • 17 is a schematic structural diagram of Embodiment 7 of a base station device according to the present invention
  • Embodiment 8 of a base station device according to the present invention is a schematic structural diagram of Embodiment 8 of a base station device according to the present invention.
  • FIG. 19 is a schematic structural diagram of Embodiment 1 of a base station handover processing system according to the present invention.
  • FIG. 20 is a schematic structural diagram of Embodiment 2 of a base station handover processing system according to the present invention. detailed description
  • FIG. 1 is a flowchart of Embodiment 1 of a method for processing handover of a base station according to the present invention. As shown in FIG. 1 , the method in this embodiment may include:
  • Step 101 Determine, according to the measurement information of the user equipment, initiate a handover process.
  • the UE may send measurement information to the source base station to which it accesses, and the measurement information may cause the source base station to determine whether handover processing is required for the UE.
  • the source base station may initiate a handover processing procedure.
  • the source base station in this embodiment may be a home base station (Home eNB, hereinafter referred to as HeNB) that provides services for the UE.
  • Home eNB home base station
  • Step 102 Determine a first target base station that can provide the first service in the neighboring base station, and switch the user equipment to the first target base station, where the first service is a service currently provided to the user equipment.
  • the P-GW is connected, so that the source base station can provide the UE with the service provided by the P-GW.
  • the first service in this embodiment is a service that the source base station can provide services for the UE, that is, a service corresponding to the service provided by the P-GW.
  • the service information of the first service may be an IP address of the P-GW, or identifier information such as ID information, and the first embodiment is not limited in this embodiment.
  • the specific information of the service information may be used, but the identifier of the first service that can identify the source base station may be used, and the method for obtaining the identifier is not limited in this embodiment.
  • the source base station HeNB may be a gateway through the HeNB (hereinafter referred to as The HeNB-GW or the Mobility Management Entity (MME) obtains the identifier, and may also obtain the identifier through the monthly service gateway (hereinafter referred to as S-GW).
  • the source base station may select the target base station according to the service information of the first service. Specifically, there may be multiple base stations under one network coverage, and these base stations may be connected to different P-GWs, and these P-GWs may provide different service services, so that base stations connected to different P-GWs can The UE provides different business services.
  • the P-GW connected to one or some of the base stations is the same as the P-GW connected to the source base station. Therefore, the base station or the base station has the same service capability as the source base station, and the base stations may be the embodiment.
  • Target base station in . For example, in a specific implementation process, each target base station can maintain a capability information table, where the capability information table can store service information that the neighboring base stations can provide.
  • the source base station currently accessed by the UE may determine, according to the capability information table, a target base station corresponding to the first service that the source base station currently provides for the UE.
  • the so-called neighboring base station refers to a base station that is geographically close to the source base station.
  • the source base station may determine that the target base station may be one or more according to the first service. If the determined target base station is one, the source base station may determine that the target base station is capable of maintaining the UE service. The contiguous first target base station, the source base station may initiate a handover process, and switch the UE to the determined first target base station. If there are multiple target base stations determined, the source base station may select one of the target base stations. The target base station initiates a handover process as the first target base station.
  • the method for selecting the first target base station from the multiple target base stations may be any manner in the prior art, for example, selecting the base station with the strongest signal among the plurality of target base stations as the first target base station, or selecting the least load among the plurality of target base stations.
  • the base station serves as the first target base station and will not be described again.
  • the source base station In the process of selecting the first target base station for the UE, the source base station fully considers the local server to which the UE is currently connected, so that the UE can continue to use the service after the UE switches from the source base station to the first target base station. There will be no business interruptions.
  • FIG. 2 is a schematic structural diagram of an application scenario of a base station handover processing method according to Embodiment 1 of the present invention.
  • three small base stations HeNB A, HeNB B, and HeNB are deployed in the same local area network, for example, an enterprise internal network.
  • the three small base stations have the same CSG ID, that is, the UE inside the enterprise network can access any of the three small base stations.
  • HeNB A and HeNB C are both connectable to P-GW B, and HeNB B can be connected to P-GW A. It should be noted that only the logic of HeNB B and P-GW A is shown in FIG. 2 .
  • a schematic diagram of the connection between the HeNB B and the P-GW A can be logically connected through the HeNBGW, the MME, and the S-GW.
  • the UE currently accesses the source base stations HeNB A, HeNB B and HeNB C are neighboring base stations of the source base station HeNB A. Therefore, the UE currently uses the service provided by P-GW B.
  • the HeNB A can select the target base station according to the authority of the UE. Since the CSG IDs of HeNB B and C are both in the UE list, the candidate target base stations are HeNB B and HeNB C.
  • the principle of the source base station handover is signal strength priority
  • the HeNB A will handover the UE to the HeNB B.
  • HeNB B cannot provide P-GW B-based services.
  • the UE cannot continue to use the P-GW B-based service, and thus the service is interrupted.
  • HeNB A when the UE leaves HeNB A, HeNB A can select a target base station for the UE. Since the HeNB A and the HeNB C can be connected to the P-GW B, the service information of the HeNB A and the HeNB C are the same. Therefore, the HeNB A can determine the HeNB B and the HeNB C according to the first service that the UE itself currently provides for the UE. Only HeNB C has the service capability corresponding to the first service. Therefore, the determined target base station has only HeNB C, so that HeNB A will handover the UE to HeNB C without switching to HeNB B. Since the HeNB C can provide the P-GW B-based service, after the handover, the UE can continue to use the P-GW B-based service, thereby avoiding the phenomenon of service interruption.
  • the source base station may determine the first target base station according to the first service that the source base station itself provides for the UE, so that the determined first target base station can also provide The service service corresponding to the first service, so that after the UE is handed over to the first target base station, the first target base station can continue to provide the service service corresponding to the first service to the UE to avoid the phenomenon of service interruption.
  • FIG. 3 is a flowchart of Embodiment 2 of a method for processing handover of a base station according to the present invention. As shown in FIG. 3, the method in this embodiment may include:
  • Step 201 Obtain service information that the neighboring base station can provide for the user equipment.
  • the source base station may obtain service information that the neighboring base station can provide for the UE before performing handover on the UE.
  • the source base station may maintain a capability information table, where the capability information table includes the correspondence between the service information that the neighboring base station of the source base station can provide for the UE and the neighboring base stations, and the source base station itself It is able to know that its own business information is the business information of the first business.
  • the step 201 may be performed in multiple triggering manners, for example, when the preset period arrives, when the UE accesses the network, or when it detects that the UE moves frequently.
  • the corresponding relationship may be stored for the first time, and the corresponding relationship may be updated when the service information of the subsequent neighboring base station changes.
  • Step 202 Determine, according to measurement information of the user equipment, a process of initiating a handover process.
  • Step 202 is similar to the implementation principle of step 101, and details are not described herein again.
  • Step 203 Determine a first target base station corresponding to the first service in the neighboring base station, and switch the user equipment to the first target base station.
  • the source base station may determine the first target base station corresponding to the first service in the neighboring base station according to the pre-acquisition relationship, and the implementation principle of step 203 is similar to that of step 102. Narration.
  • the source base station may store or update the correspondence between the service information of the neighboring base station of the source base station and the neighboring base station before initiating the handover to the UE, and perform the cutting on the UE.
  • the corresponding relationship may be queried, and the first target base station is determined according to the first service that the source base station itself provides for the UE, so that the determined first target base station can also provide the service service corresponding to the first service, thereby enabling the UE
  • the target base station can continue to provide the UE with the service service corresponding to the first service, so as to avoid the phenomenon of service interruption.
  • Embodiment 3 is a flowchart of Embodiment 3 of a method for processing handover of a base station according to the present invention. As shown in FIG. 4, the method in this embodiment may include:
  • Step 301 Send a first information collection request message to the neighboring base station, and receive a first information collection response message fed back by the neighboring base station, where the first information collection response message includes the service information.
  • the source base station may actively collect the service information of the neighboring base stations from the neighboring base stations before the UE performs the handover process, that is, which local P-GWs can be connected to the neighboring base stations.
  • the source base station may send the first information collection request message to the neighboring base station through the X2 interface.
  • the HeNB A may send the first information collection request message to the HeNB B and the HeNB C through the X2 interface.
  • the neighboring base station may feed back the first information collection response message to the source base station, where the first information collection response message includes the service information.
  • the HeNB B and the HeNB C may send a first information collection response message to the HeNB A, where the HeNB B sends the service information carried in the first information collection response message.
  • the IP address of the P-GW A or the identification information of the service that can be represented by the P-GW A, and the service information carried in the first information collection response message sent by the HeNB C may be the IP address of the P-GW B or Any identification information capable of indicating the service provided by the P-GW B. It should be noted that the P-GW in this embodiment may be a private P-GW that provides local services.
  • Step 302 Determine a correspondence between the service information and the neighboring base station.
  • the source base station may determine the adjacent base. The correspondence between the stations and the service information of these neighboring base stations. Optionally, the source base station may store the correspondence for later use.
  • Step 303 Determine, according to the measurement information of the user equipment, initiate a handover process.
  • Step 304 Determine, according to the correspondence, a first target base station corresponding to the first service in the neighboring base station.
  • Step 305 Switch the user equipment to the first target base station.
  • steps 303 to 305 are similar to the implementation principles of steps 202 to 203 shown in FIG. 3, and are not described herein again.
  • the source base station may actively send a collection request to the neighboring base station through the X2 interface before initiating the handover to the UE, so as to obtain the correspondence between the service information of the neighboring base station of the source base station and the neighboring base station.
  • the corresponding relationship may be queried, and the first target base station that the source base station itself provides for serving the UE is determined, so that the determined first target base station can also provide the service service corresponding to the first service.
  • the first target base station can continue to provide the UE with the service service corresponding to the first service, so as to avoid the phenomenon of service interruption.
  • FIG. 5 is a flowchart of Embodiment 4 of a method for processing handover of a base station according to the present invention. As shown in FIG. 5, the method in this embodiment may include:
  • Step 401 Send a second information collection request message to the base station gateway, and receive a second information collection response message that is sent by the base station gateway, where the second information collection response message includes services of each neighboring base station acquired by the base station gateway. information.
  • the difference between this embodiment and the embodiment shown in FIG. 4 is that, in this embodiment, there is no X2 interface between the source base station and the neighboring base station, and the source base station and the neighboring base station can be connected through the base station gateway.
  • the source base station may send a first information collection request message to the neighboring base station through the base station gateway.
  • HeNB A may use HeNB-GW to HeNB B and HeNB C send a first information collection request message.
  • Adjacent base stations are connected After receiving the first information collection request message, the first information collection response message may be fed back to the source base station by using the base station gateway, where the first information collection response message includes the service information.
  • the HeNB B and the HeNB C may send a first information collection response message to the HeNB A through the HeNB-GW, where the HeNB B sends the first message.
  • the service information carried in the information collection response message may be the IP address of the P-GW A or any identifier information indicating the service provided by the P-GW A, and the HeNB C sends the service information carried in the first information collection response message. It may be the IP address of the P-GW B or any identification information capable of indicating the service provided by the P-GW B.
  • Step 402 Determine a correspondence between the service information and the neighboring base station.
  • the source base station After receiving the first information collection response message fed back by the neighboring base station, the source base station can determine the correspondence between the neighboring base stations and the service information of the neighboring base stations. Optionally, the source base station may store the correspondence for later use.
  • Step 403 Determine, according to the measurement information of the user equipment, the process of initiating the handover process.
  • Step 404 Determine, according to the correspondence, a first target base station corresponding to the first service in the neighboring base station.
  • Step 405 Switch the user equipment to the first target base station.
  • steps 403 to 405 are similar to the implementation principles of steps 303 to 305 shown in FIG. 4, and are not described herein again.
  • the source base station may actively send a collection request to the neighboring base station through the base station gateway before initiating the handover to the UE, so as to obtain the correspondence between the service information of the neighboring base station of the source base station and the neighboring base station.
  • the corresponding relationship may be queried, and the first target base station that the source base station itself provides for serving the UE is determined, so that the determined first target base station can also provide the service service corresponding to the first service.
  • the first target base station can continue to provide the UE with the service service corresponding to the first service, so as to avoid the phenomenon of service interruption.
  • FIG. 6 is a flowchart of Embodiment 5 of a method for processing handover of a base station according to the present invention. As shown in FIG. 7, the method in this embodiment may include:
  • Step 501 Receive an interaction update indication message sent by the operation management and maintenance entity, send the service information of the first service to the neighboring base station, and receive the service information sent by the neighboring base station.
  • the operation management maintenance (OAM) entity may trigger the source base station and the neighboring base station to exchange their respective service information, so that the network can be obtained between the source base station and the neighboring base station. Service information of each internal base station.
  • the OAM entity may send an interaction update indication message to the source base station and the neighboring base station, where the source base station may send the service information of the first service that is itself served by the UE to the neighboring base station, and the neighboring base station It is also possible to transmit their respective service information to the source base station.
  • the OAM may send an update update indication message to the source base station HeNB A and the neighboring base stations HeNB B and HeNB C of the source base station through the X2 interface. Then, HeNB A, HeNB B, and HeNB C can exchange their respective service information in pairs.
  • the HeNB A, the HeNB B, and the HeNB C can communicate with the OAM through the base station gateway.
  • the OAM may send an interaction update indication message to the base station gateway to trigger the base station gateway to forward the interaction update indication message to the HeNB A, the HeNB B, and the HeNB C, so that the source base station and the neighboring base station can independently interact with each other.
  • the base station gateway may collect the service information of the source base station and the neighboring base station in advance, and after receiving the interactive update indication message sent by the OAM, may send the collected service information to the source base station and the neighboring base station.
  • the base station gateway may send the collected service information of the HeNB B and the HeNB C to the HeNB A, and send the collected service information of the HeNB A and the HeNB B to the HeNB C, and collect the collected HeNB A and The service information of the HeNB C is sent to the HeNB B. Therefore, the source base station HeNB A can obtain the service information of its neighboring base stations HeNB B and HeNB C.
  • Step 502 Determine a correspondence between the service information and the neighboring base station. After receiving the service information of the neighboring base station sent by the base station gateway, the source base station can determine the correspondence between the neighboring base stations and the service information of the neighboring base stations. Optionally, the source base station may store the correspondence for later use.
  • Step 503 Determine, according to the measurement information of the user equipment, the process of initiating the handover process.
  • Step 504 Determine, according to the correspondence, a first target base station corresponding to the first service in the neighboring base station.
  • Step 505 Switch the user equipment to the first target base station.
  • steps 503-505 are similar to the implementation principles of steps 303-305 shown in FIG. 4, and are not described herein again.
  • the base station gateway may send the collected service information to the source base station and its neighboring base station under the trigger of the OAM entity, or instruct the source base station and its neighboring base stations to exchange respective service information, so that the source base station can Before the handover is initiated to the UE, the correspondence between the service information of the neighboring base station of the source base station and the neighboring base station is obtained.
  • the corresponding relationship may be queried, and the first target base station that the source base station itself provides for serving the UE is determined, so that the determined first target base station can also provide the service service corresponding to the first service.
  • the first target base station can continue to provide the UE with the service service corresponding to the first service, so as to avoid the phenomenon of service interruption.
  • FIG. 7 is a flowchart of Embodiment 6 of a method for processing handover of a base station according to the present invention. As shown in FIG. 7, the method in this embodiment may include:
  • Step 601 Determine, according to the measurement information of the user equipment, initiate a handover process.
  • Step 601 of this embodiment is similar to the implementation principle of step 101 shown in FIG. 1, and details are not described herein again.
  • the method for processing the base station handover is that the source base station obtains the service information of the neighboring base station before the handover process is performed on the UE, so as to ensure the continuity of the service used by the UE when the UE performs the handover process.
  • the source base station does not need to know the service information of the neighboring base station in advance, but attempts to switch the UE to a target base station in the process of performing handover processing on the UE.
  • the service information of the feedback from the base station is used to determine whether to decide to handover the UE to the target base station to ensure the continuity of the service used by the UE.
  • Step 602 The source base station sends a first handover request message to one of the neighboring base stations, where the first handover request message includes service information of the first service.
  • the source base station may send a first handover request message to one of the target base stations of the multiple neighboring base stations, where the first handover request message may include service information of the first service of the source base station.
  • the neighboring base station that receives the first handover request message can learn the service information of the source base station according to the service information of the first service, that is, which P-GW the source base station provides for the UE.
  • Step 603 The target base station determines whether it has the same service capability as the service information of the first service. If yes, step 604 is performed; otherwise, step 602 is performed.
  • the target base station may determine, according to the service information of the first service, whether it can provide the UE with the same service service provided by the source base station to the UE. If the target base station has the capability to connect to the P-GW connected to the source base station, the target base station may feed back the handover success response message to the source base station, and if the target base station cannot establish a connection with the P-GW connected to the source base station, the target The base station can feed back the handover failure response message to the source base station.
  • Step 604 The target base station sends a handover success response message to the source base station, where the source base station switches the UE to the target base station.
  • the target base station is the first target base station determined by the source base station, that is, the target base station capable of ensuring UE service continuity.
  • the source base station switches the UE to the first target base station determined in step 604, the service continuity used by the UE can be guaranteed.
  • the source base station then performs the above steps 602 and 603 to attempt to transmit a first handover request message to other target base stations in the neighboring base station until the UE is handed over to the first target base station having the same service information as the source base station.
  • the source base station HeNB A in FIG. 2 may first send a first handover request to the HeNB B.
  • the message may carry the service information of the P-GW B, such as IP address information.
  • HeNB B has the ability to connect with P-GW A. Therefore, HeNB B can determine its own service information, which cannot provide P-GW B-based service service for the UE. Therefore, the HeNB B sends a handover failure to the source base station HeNB A.
  • the HeNB A then sends a first handover request message to the HeNB C, where the request message may carry the IP address information of the P-GW B, and the HeNB C can connect with the P-GW B. Therefore, the HeNB C can determine itself.
  • the service information which can provide the P-GW B-based service service for the UE, therefore, the HeNB C sends a handover success response message to the source base station HeNB A. After receiving the handover success response message, the source base station HeNB A can handover the UE to the HeNB C. Therefore, after switching to the HeNB C, the UE can continue to use the P-GW B-based service service without service interruption.
  • the source base station uses the polling manner to query the service information of the neighboring base station, but the embodiment does not limit which source base station sends the handover request message to the target base station in the neighboring base station. Which target base station is sent a handover request message.
  • the source base station may also send a first handover request message to the neighboring base station, where the first handover request message includes service information of the first service; Receiving the handover response message fed back by the neighboring base station, the source base station may determine that the base station corresponding to the handover success response message in the handover response message is the first base station, and therefore the first base station is a target capable of ensuring the service continuity of the UE after the handover.
  • the base station may be a target base station or a plurality of target base stations; and then the source base station switches the user equipment to the first target base station in the first base station.
  • a person skilled in the art may select a first target base station to perform handover processing on the UE from the at least one first base station, for example, select a base station with the smallest load, and the like.
  • the determining, by the first service, the first target base station according to the first service serving the user equipment includes: sending a first handover request message to the neighboring base station, where the first handover request message includes the first service Receiving a handover success response message fed back by at least one of the first base stations, the first base station having a closed subscriber group corresponding to the service information of the first service a number; determining a first target base station from the at least one first base station.
  • the source HeNB may select the base station that is the CSG-ID of the source HeNB that provides the local service as the first target base station for handover when performing handover processing on the UE.
  • the process in which the source base station sends the first handover request message to the neighboring base station and the process in which the neighboring base station feeds back the handover response message to the source base station may also perform forwarding processing through the base station gateway, and the implementation principle thereof Similar to the above process, it will not be described here.
  • the source base station may, in the process of performing base station handover on the UE, attempt to send the handover request to one of the neighboring base stations or all of the target base stations in the neighboring base station, and determine the service information through the feedback. Whether the target base station can also provide the service service corresponding to the first service, so that after the UE switches to the first target base station in the target base station, the first target base station can continue to provide the UE with the service service corresponding to the first service. To avoid business interruptions.
  • the service request message is sent to one of the neighboring base stations by the forwarding of the user equipment, where the service request message includes service information of the first service, and is received by the user equipment. a service request response message fed back by the target base station according to the service information of the first service; if the service request response message is a success response message, the target base station is used as the first target base station; otherwise, the device is re-passed Transmitting, by the user equipment, a service request message to another target base station in the neighboring base station, until the first target base station is successfully determined from the neighboring base station; or sending a service request to the neighboring base station by forwarding by the user equipment a message, the service request message includes the service information of the first service, and the service request response message fed back by the neighboring base station is received by the user equipment, and the first service can be determined according to the service request response message. At least one first base station and determining the at least one A first base station target base station. .
  • FIG. 8 is a flowchart of Embodiment 7 of a method for processing handover of a base station according to the present invention. As shown in FIG. 8, the method in this embodiment may include:
  • Step 701 Determine, according to the measurement information of the user equipment, initiate a handover processing procedure.
  • Step 702 Send an information acquisition request message to the base station gateway, where the information acquisition request message includes service information of the first service.
  • the base station gateway may collect the service information of the base station adjacent to the source base station in advance, or pre-store the service information of all the base stations in the base station gateway.
  • the source base station may send an information acquisition request message to the base station gateway to request the base station gateway to feed back the identity information of the base station corresponding to the service information of the first service included in the information acquisition request message.
  • Step 703 Receive identification information of at least one first base station corresponding to the first service that is sent by the base station gateway.
  • the base station gateway may acquire the first base station corresponding to the first service by using a query or the like according to the service information of the first service, so that the determined first base station can provide the UE with the same service service provided by the source base station to the UE. . After the base station gateway determines, the identity information of the first base station can be sent to the source base station.
  • the first base station may be one or more.
  • Step 704 Switch the user equipment to the first target base station in the first base station according to the identifier information of the first base station.
  • a person skilled in the art may select, by using the prior art, the first target base station to perform handover processing on the UE, for example, selecting a base station with the smallest load or the highest signal strength as the first target base station.
  • the source base station may send an information acquisition request message to the base station gateway, so that the base station gateway can feed back the identifier information of the first base station corresponding to the first service of the source base station to the source base station, so that the source base station can A base station selects and determines that the first target base station performs a base station handover process on the UE. Therefore, after the UE switches to the first target base station, the first target base station can continue to provide the UE with the service service corresponding to the first service, thereby avoiding the service.
  • the phenomenon of interruption is a base station gateway.
  • FIG. 9 is a flowchart of Embodiment 8 of a method for processing handover of a base station according to the present invention. As shown in FIG. 9, the method in this embodiment may include:
  • Step 801 Determine, according to the measurement information of the user equipment, initiate a handover processing procedure.
  • Step 802 Send a second handover request message to the neighboring base station, where the second handover request message includes a closed user group number, where the idle bit of the closed user group number includes the service information of the first service.
  • Step 803 Receive a handover response message fed back by the neighboring base station, and determine, according to the handover response message, the first base station that has the service capability corresponding to the first service.
  • the CSG-ID can be flexibly utilized to identify the relationship between the base station and its service information, that is, the base station having the same service information can be configured with the same CSG-ID or the same CSG-ID-segment flag, or implicitly CSG-ID with the same business information.
  • the source base station performs the handover of the UE
  • the first base station corresponding to the first service is caused by the service information of the first service carried in the idle bit of the CSG-ID included in the second handover request message sent to the neighboring base station.
  • the handover successful response can be fed back, so that the source base station knows which neighboring base stations can serve as the target base station.
  • Step 804 Switch the user equipment to a first target base station in the first base station.
  • a person skilled in the art may select, by using the prior art, that the first target base station performs handover processing on the UE, for example, selecting a base station with the smallest load or the highest signal strength, and the like.
  • the source base station may carry the service information of the first service of the source base station to the idle bit passing the CSG ID, so that the first base station corresponding to the first service in the neighboring base station may feed back the handover response to the source base station.
  • the source base station may select, from the first base station, the first target base station to perform base station handover processing on the UE. Therefore, after the UE switches to the first target base station, the first target base station can continue to provide the UE with the first service.
  • FIG. 10 is a flowchart of Embodiment 9 of the base station handover processing method of the present invention. As shown in FIG. 10, the method in this embodiment may include:
  • Step 901 Receive a handover request message sent by a source base station currently accessed by the user equipment, where the handover request message includes service information of the source base station.
  • This embodiment may be a processing procedure of a neighboring base station corresponding to Embodiment 6 of the base station handover processing method of the present invention shown in FIG.
  • the source base station does not need to know the neighbors in advance.
  • the service information of the base station in the process of performing handover processing on the UE, attempts to handover the UE to a certain target base station, and determines whether to decide to handover the UE to the base station to ensure the UE uses the service by using the feedback service information of the base station. Continuity. Therefore, the source base station may send a handover request message to one of the plurality of neighboring base stations or to the plurality of neighboring base stations, where the handover request message may include the service information of the source base station.
  • the neighboring base station After receiving the handover request message, the neighboring base station can learn the service information of the source base station according to the service information, that is, which P-GW the source base station is connected to.
  • the neighboring base station may determine, according to the service information, whether it can provide the UE with the same service service provided by the source base station to the UE.
  • Step 902 If the service capability corresponding to the service information of the source base station is provided, the handover success response message is fed back to the source base station to instruct the source base station to switch the user equipment according to the handover success response message. deal with.
  • the neighboring base station may feed back the handover success response message to the source base station, if the neighboring node
  • the base station and the source base station can connect different P-GWs, and the base station can feed back the handover failure response message to the source base station, and can not feed back any message to the source base station.
  • the source base station may use the polling manner to query which base station in the neighboring base station to switch to the UE. Once determined, the source base station may directly The UE switches to the determined neighboring base station. If the source base station sends a handover request message to multiple neighboring base stations at a time in step 901, there may be multiple neighboring base stations that feed back the handover success response message to the source base station.
  • the source base station needs to One of the neighboring base stations selects one target base station to perform handover processing on the UE, and the selection criterion of the specific source base station selects one target base station from the plurality of adjacent base stations, which can be implemented by using the prior art.
  • the process in which the source base station sends the handover request message to the neighboring base station and the process in which the neighboring base station feeds back the handover response message to the source base station may also perform the forwarding process through the base station gateway, and the implementation principle thereof is as follows. The process is similar and will not be described here.
  • the source base station may, in the process of performing base station handover on the UE, attempt to send the handover request to one of the neighboring base stations or all the base stations in the neighboring base station, and the service information fed back by the neighboring base station is used.
  • the target base station Determining whether the base station can also provide the service service corresponding to the first service, so that after the UE is handed over to the target base station, the target base station can continue to provide the service service corresponding to the first service to the UE, thereby avoiding the phenomenon of service interruption. .
  • FIG. 11 is a schematic structural diagram of Embodiment 1 of a base station device according to the present invention.
  • the base station device in this embodiment may include: a first determining module 11 and a first processing module 12, where the first determining module 11 is configured according to The measurement information of the user equipment is determined to initiate a handover process.
  • the first processing module 12 is configured to determine a first target base station that can provide the first service in the neighboring base station, and switch the user equipment to the first target base station.
  • the first service is a service currently provided to the user equipment.
  • the base station device in this embodiment may be used to perform the method in the method embodiment shown in FIG. 1 , and the implementation principle is similar, and details are not described herein again.
  • the base station device may determine, according to the first service that the source base station itself provides for the UE, the first target base station, so that the determined first target base station can also provide the first service corresponding to the first service. After the UE is switched to the first target base station, the first target base station can continue to provide the service service corresponding to the first service to the UE to avoid the phenomenon of service interruption.
  • FIG. 12 is a schematic structural diagram of Embodiment 2 of a base station device according to the present invention.
  • the base station device of the present embodiment further includes: a first acquiring module 13 according to the base station device shown in FIG.
  • the obtaining module 13 is configured to obtain service information that the neighboring base station can provide for the user equipment.
  • the base station device in this embodiment may be used to perform the method in the method embodiment shown in FIG. 3, and the implementation principle and effect are similar, and details are not described herein again.
  • FIG. 13 is a schematic structural diagram of Embodiment 3 of a base station device according to the present invention.
  • the base station device in this embodiment is based on the base station device shown in FIG. 12, and further, the first obtaining module 13 includes: a unit 131 and a first receiving unit 132, where the first sending unit 131 is configured to The neighboring base station sends a first information collection request message; the first receiving unit 132 is configured to receive the first information collection response message fed back by the neighboring base station, where the first information collection response message includes the service information.
  • the base station device can be used to perform the method in the method embodiment shown in FIG. 4, and the implementation principle and effect are similar, and details are not described herein again.
  • the first sending unit 131 is configured to send a second information collection request message to the base station gateway, where the first receiving unit 132 is configured to receive a second information collection response message that is sent by the base station gateway, where the second information collection response message includes The business information.
  • the base station device can be used to perform the method in the method embodiment shown in FIG. 5, and the implementation principle and effect are similar, and details are not described herein again.
  • FIG. 14 is a schematic structural diagram of Embodiment 4 of a base station device according to the present invention.
  • the base station device in this embodiment is based on the base station device shown in FIG. 12, and further, the first obtaining module 13 includes: The unit 133 and the second sending unit 134, where the second receiving unit 133 is configured to receive an interaction update indication message sent by the operation management and maintenance entity, and receive the service information sent by the neighboring base station; The neighboring base station sends the service information of the first service.
  • the second receiving unit 133 is configured to receive the service information of the neighboring base station that is sent by the base station gateway after receiving the interaction update indication message sent by the operation management and maintenance entity.
  • the base station device in this embodiment may be used to perform the method in the method embodiment shown in FIG. 6, and the implementation principle and effect are similar, and details are not described herein again.
  • FIG. 15 is a schematic structural diagram of Embodiment 5 of a base station device according to the present invention.
  • the base station device in this embodiment is based on the base station device shown in FIG. 11.
  • the first processing module 12 includes: The unit 121, the third receiving unit 122, and the third processing unit 123, where the third sending unit 121 is configured to send a first handover request message to one of the neighboring base stations, where the first handover request message includes the a service information of the first service; the third receiving unit 122 is configured to receive a handover response message that is sent by the one target base station according to the service information of the first service;
  • the element 123 is configured to: if the handover response message is a handover success response message, use the one target base station as the first target base station, and otherwise, instruct the third sending unit to re-route to another target base station in the neighboring base station.
  • the first handover request message is sent until the first target base station is successfully determined from the neighboring base stations.
  • the third sending unit 121 is configured to send a first handover request message to the neighboring base station, where the first handover request message includes service information of the first service, and the third receiving unit 122 is configured to receive the adjacent a handover response message fed back by the base station;
  • the third processing unit 123 is configured to determine, according to the handover response message, at least one first base station capable of providing the first service, and determine a first target base station in the at least one first base station.
  • the base station device in this embodiment may be used to perform the method in the method embodiment shown in FIG. 7, and the implementation principle and function are similar, and details are not described herein again.
  • FIG. 16 is a schematic structural diagram of Embodiment 6 of a base station device according to the present invention.
  • the base station device in this embodiment is based on the base station device shown in FIG. 11.
  • the first processing module 12 includes: The unit 124, the fourth receiving unit 125, and the fourth processing unit 126, wherein the fourth sending unit 124 is configured to send an information acquisition request message to the base station gateway, where the information acquisition request message includes service information of the first service;
  • the receiving unit 125 is configured to receive, by the base station, the identifier information of the at least one first base station that can provide the first service, and the fourth processing unit 126 is configured to: according to the identifier information of the at least one first base station, Determining a first target base station in the at least one first base station.
  • the base station device in this embodiment may be used to perform the method in the method embodiment shown in FIG. 8 , and the implementation principle and function are similar, and details are not described herein again.
  • FIG. 17 is a schematic structural diagram of Embodiment 7 of a base station device according to the present invention.
  • the base station device in this embodiment is based on the base station device shown in FIG. 11.
  • the first processing module 12 includes: The unit 127, the fifth receiving unit 128, and the fifth processing unit 129, wherein the fifth sending unit 127 is configured to send a second handover request message to the neighboring base station, where the second handover request message includes a closed user group number, The idle bit of the closed user group number includes the service information of the first service;
  • the receiving unit 128 is configured to receive a handover response message that is sent by the neighboring base station, where the fifth processing unit 129 is configured to determine, according to the handover response message, at least one first base station that can provide the first service; A first target base station is determined in a first base station.
  • the fifth sending unit 127 is configured to send a first handover request message to the neighboring base station, where the first handover request message includes service information of the first service, and the fifth receiving unit 128 is configured to receive the neighbor base station.
  • the base station device in this embodiment may be used to perform the method in the method embodiment shown in FIG. 9 , and the implementation principle and effect are similar, and details are not described herein again.
  • FIG. 18 is a schematic structural diagram of Embodiment 8 of a base station device according to the present invention.
  • the base station device in this embodiment includes: a second receiving module 21 and a second sending module 22, where the second receiving module 21 is configured to receive a handover request message sent by the source base station currently accessed by the user equipment, where the handover request message includes the service information that the source base station provides the first service for the user equipment, and the second sending module 22 is configured to The service capability corresponding to the service information of the service is forwarded to the source base station, and the handover success response message is sent to the source base station to instruct the source base station to perform handover processing on the user equipment.
  • the base station device in this embodiment may be used to perform the method in the method embodiment shown in FIG. 10, and the implementation principle and function are similar, and details are not described herein again.
  • FIG. 19 is a schematic structural diagram of Embodiment 1 of a base station handover processing system according to the present invention.
  • the system in this embodiment includes: a source base station device 1 and a target base station device 2, where the source base station device 1 is used according to the user equipment.
  • the measurement information determines a process of initiating a handover process; determining a first target base station in the neighboring base station capable of providing the first service, and switching the user equipment to the first target base station, where the first service is currently provided to the The service of the user equipment; the target base station device 2 is configured to provide service information to the source base station device.
  • the source base station device 1 can be implemented by using any one of the structures in FIG. 11 to FIG.
  • the implementation principle and function are similar, and will not be described here.
  • FIG. 20 is a schematic structural diagram of Embodiment 2 of a base station handover processing system according to the present invention.
  • the system in this embodiment further includes: base station gateway device 3, base station gateway device 3, based on the system shown in FIG. And collecting the service information of the target base station device, and sending the collected service information to the source base station device.
  • the system of the present embodiment is different from the system shown in FIG. 19 in that the source base station device 1 and the target base station device 2 can communicate with each other through the base station gateway device 3.
  • the implementation principle and effect are similar, and will not be described again.
  • the base stations in all the above embodiments may be various types of small base stations, such as Pico (a type of small base station), Femto (a type of small base station), or a HeNB (Home eNB, a home base station).
  • Pico a type of small base station
  • Femto a type of small base station
  • HeNB Home eNB, a home base station
  • the embodiments of the present invention are applicable to an enterprise network application scenario, and different base stations of an enterprise network often have different functions. For example, different base stations in an enterprise network may have the ability to access different gateways or have different access rights to facilitate management of the enterprise network.
  • the terminal uses the technical solution of the embodiment of the present invention to switch between different base stations of the enterprise network, which can improve the handover success rate and avoid or reduce the situation that the target base station cannot serve the terminal.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

L'invention, qui appartient au domaine de la technologie des communications, concerne un procédé de traitement de transfert pour station de base et un équipement pour station de base. Le procédé comporte les étapes consistant à : confirmer le lancement d'une procédure de traitement de transfert en fonction d'informations de mesures d'un équipement d'utilisateur ; confirmer une première station de base de destination capable d'assurer un premier service actuellement assuré à l'équipement d'utilisateur parmi des stations de base voisines ; et transférer l'équipement d'utilisateur à la première station de base de destination. Les modes de réalisation de la présente invention permettent de faire en sorte que le service utilisé par l'équipement d'utilisateur ne soit pas interrompu au cours du transfert de l'équipement d'utilisateur d'une station de base d'origine à une station de base de destination.
PCT/CN2011/072679 2010-04-29 2011-04-12 Procédé de traitement de transfert pour station de base et équipement pour station de base WO2011134348A1 (fr)

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