WO2011026413A1 - 一种家用基站的切换类型控制方法和系统 - Google Patents

一种家用基站的切换类型控制方法和系统 Download PDF

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Publication number
WO2011026413A1
WO2011026413A1 PCT/CN2010/076465 CN2010076465W WO2011026413A1 WO 2011026413 A1 WO2011026413 A1 WO 2011026413A1 CN 2010076465 W CN2010076465 W CN 2010076465W WO 2011026413 A1 WO2011026413 A1 WO 2011026413A1
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WIPO (PCT)
Prior art keywords
base station
handover
home
type
list
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PCT/CN2010/076465
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English (en)
French (fr)
Inventor
骆文
宋建全
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中兴通讯股份有限公司
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Publication of WO2011026413A1 publication Critical patent/WO2011026413A1/zh

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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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information

Definitions

  • the present invention relates to the field of home base station communication, and more particularly to a handover type control method and system for a home base station. Background technique
  • home base stations are usually installed in homes, office areas, and the like.
  • the home base station is a small, low-power base station with practical, convenient, low-power output.
  • FIG. 1 is a schematic structural diagram of a communication network including a home base station.
  • the home base station can access the authentication and accounting (AAA, Authentication, Authorization and Accounting) of the core network through the logical network element of the access gateway.
  • Server There can be a security gateway between the home base and the access gateway.
  • the security gateway can be set up with the access gateway or with the access gateway.
  • the main function of the security gateway is to ensure the link security between the home base station and the access gateway and the user data server.
  • the main functions of the access gateway include: verifying the security of the home base station, handling the registration of the home base station, performing operation and maintenance management on the home base station, configuring and controlling the home base station according to the operator's requirements, and between the core network and the home base station. Data exchange.
  • the AAA server is an important facility in the communication network. It is used to implement network operator control and management of data and users. It provides authentication and authorization and account services. It usually works in conjunction with network access control, gateway server, database and user information directory.
  • the main function of the anchor Authenticator is to provide access authentication service to the mobile terminal when the mobile terminal accesses the network; Responsible for managing and maintaining the context information of the mobile terminal.
  • the anchor authenticator can be placed in the access gateway.
  • the role of the anchor access gateway is to reside in the anchor data channel function, and data from or to the mobile terminal needs to access the gateway through the anchor.
  • Handover refers to the process in which a mobile terminal moves from a base station (serving base station) for which wireless service is currently provided to a new base station (target base station) and supports the wireless service provided by the new base station.
  • serving base station for which wireless service is currently provided to a new base station (target base station) and supports the wireless service provided by the new base station.
  • target base station Such a pair of serving base stations and target base stations are mutually opposite base stations.
  • the serving base station/target base station may be an ao base station or a home base station.
  • the handover related to the home base station includes multiple types, for example, the mobile terminal switches from the macro base station to the home base station, the mobile terminal switches from the home base station to the macro base station, and the mobile terminal is in two adjacent Switch between home base stations, etc.
  • the types of the base stations according to the home base station and the types of handovers related to the home base station may be referred to as handover types supported by the home base station.
  • the home base station is purchased by the user, and the home base station user must use the service provided by the home base station after signing the home base station with the operator.
  • These services include: the user accesses the mobile communication network through the home base station using his own mobile terminal, or the user's relatives and friends use their respective mobile terminals to access the mobile communication network through the home base station.
  • operators provide differentiated services to home base station users, such as providing different services to users based on the level of home base station users.
  • the network can control the user's home base station to provide services to several mobile terminals simultaneously. For example, for a high-level home base station user, the home base station can serve five mobile terminals simultaneously; and the low-level home base station can only serve one mobile terminal at a time.
  • the network can control the QoS level of the mobile terminal supporting the user's home base station service.
  • mobile terminals supporting their home base station services can enjoy the higher QoS guarantee provided by the network; and for low-level home base station users, mobile terminals supporting their home base station services need to withstand The network provides it with lower QoS guarantees.
  • the network can also control the degree of service continuity that the user's home base station can provide to the mobile terminal, that is, control the type of handover that the home base station can support, such as:
  • the home base station can provide all types of handovers to the mobile terminal; and for low-level home base station users, the home base station can only provide one of the above handover types to the mobile terminal (for example, Only the mobile terminal is switched from the home base station to the surrounding macro base station without supporting it to switch to another home base station, or even not providing the handover function to the mobile terminal at all.
  • the above network controls the type of handover supported by the home base station, which is simply referred to as handover type control.
  • handover type control the mobile terminal handover procedure based on the home base station system of FIG. 1 is as shown in FIG. 2, wherein the serving base station is a base station currently serving the mobile terminal, and the target base station is a base station that the mobile terminal can handover into (cut in).
  • the serving base station is a base station currently serving the mobile terminal
  • the target base station is a base station that the mobile terminal can handover into (cut in).
  • Step 201 In the handover preparation phase, the mobile terminal initiates a mobility request to the serving base station, where the request carries a candidate target base station selected by the group of mobile terminals.
  • Step 202 The serving base station sends a preparation handover request to each candidate target base station, where the request carries the identifier of the anchor authentication device of the mobile terminal.
  • Step 203 After receiving the preparation handover request, the candidate target base station exchanges context information related to the mobile terminal with an anchor authenticator (finding the corresponding anchor authenticator according to the identifier of the anchor authenticator).
  • Step 204 Pre-establishment of a registration data channel initiated by the candidate target base station between the candidate target base station and the anchor access gateway by the mobile terminal.
  • Step 205 The candidate target base station returns a preparation handover request response to the serving base station, where the indication Whether the candidate target base station supports the preparation of the handover request.
  • Step 206 The serving base station sends a mobile request response to the mobile terminal, where the one or more potential target base stations that the mobile terminal can cut in (supporting the candidate target base station preparing the handover request) are included.
  • Step 207 The serving base station sends a preparation handover confirmation message to the potential target base station.
  • the main object of the present invention is to provide a handover type control method and system for a home base station, which can implement a control function of a handover type supported by a network to a home base station in a handover procedure of a mobile terminal based on a home base station system.
  • a handover type control method for a home base station configured to configure a handover policy for the first base station and the second base station, the method further includes:
  • the first base station acquires the identifier of the second base station, and confirms the type of the second base station according to the obtained list of nearby base stations; the first base station performs according to the type of the second base station and the handover policy. Switch type control;
  • the first base station provides its own identifier to the second base station
  • the second base station confirms the type of the first base station according to the identifier of the first base station and the obtained list of nearby base stations; and the second base station performs the handover type according to the type of the first base station and the handover policy. control.
  • the second base station When the first base station is a target base station, the second base station is a serving base station; when the first base station is a serving base station, the second base station is a target base station;
  • the serving base station is a base station currently serving a mobile terminal;
  • the target base station is a mobile station The base station to be cut into by the mobile terminal;
  • the types of the first base station or the second base station include: a home base station and a macro base station.
  • a handover policy configuring, by the first base station and the second base station, a handover policy, where: configuring, by the network side entity, the handover policy to the first a base station or a second base station;
  • the network side entity includes at least one of the following: a configuration server, a policy control server, a home base station management system, and an ad hoc network server.
  • the handover policy is a handover type supported or not supported by the current base station, and includes:
  • the first base station confirms the type of the second base station, or the second base station confirms the type of the first base station, specifically:
  • the nearby base station list is a list of nearby macro base stations
  • the first base station determines that the identifier of the second base station exists in the nearby macro base station list, confirms that the second base station is a macro base station; otherwise, confirms that the second base station is a home base station;
  • the second base station determines that the identifier of the first base station exists in the nearby macro base station list, confirms that the first base station is a macro base station; otherwise, confirms that the first base station is a home base station;
  • the nearby base station list is a list of nearby home base stations
  • the first base station determines that the identifier of the second base station exists in a nearby home base station list, confirms that the second base station is a home base station; otherwise, confirms that the second base station is a macro base station;
  • the second base station determines that the identifier of the first base station exists in a list of nearby home base stations, confirms that the first base station is a home base station; otherwise, confirms that the first base station is a macro base station;
  • the neighboring base station list is a nearby macro base station list and a nearby home base station list
  • the first base station determines that the identity of the second base station exists in a nearby macro base station list or a nearby home base station list, if it exists in a nearby macro base station list. And confirming that the second base station is a macro base station; if it exists in a nearby home base station list, confirming that the second base station is a home base station;
  • the base station list confirms that the first base station is a home base station.
  • the first base station or the second base station acquires a list of nearby base stations, where specifically: the network side entity sends the identifiers of the macro base stations and/or the home base stations in the vicinity of the first base station or the second base station to the Obtaining, by the first base station or the second base station, the list of nearby macro base stations and/or a list of nearby home base stations;
  • the network side entity indicates, by using a corresponding identifier, a macro base station and/or a home base station in the neighboring base station list, in the neighboring base station list sent to the first base station or the second base station, And a part of the neighboring base station list is used as the neighboring macro base station list, and a part of the neighboring base station list of the home base station is used as the nearby home base station list;
  • the first base station or the second base station listens to the air interface broadcast message sent by the base station in the vicinity of the base station, and obtains the indication information of the base station type in the air interface broadcast message, to obtain a list of nearby macro base stations and/or a list of nearby home base stations.
  • the first base station When the first base station is the serving base station, and the second base station is the target base station, the first base station obtains the identifier of the second base station, which is specifically:
  • the mobile terminal When the mobile terminal initiates the handover request, the mobile terminal sends a mobile request to the first base station, where the mobile request carries the identifier of the second base station determined by the mobile terminal, and the first base station acquires the identifier of the second base station;
  • the first base station selects an adjacent base station as the second base station, and the first base station acquires an identifier of the second base station;
  • the first base station is a target base station, and when the second base station is a serving base station, the first base station acquires an identifier of the second base station, which is specifically:
  • the mobile station When the mobile terminal initiates the handover request, the mobile station sends a ranging request to the first base station, where the ranging request carries the identifier of the second base station, and the first base station acquires the identifier of the second base station.
  • the first base station is a serving base station, and when the second base station is a target base station, the first base station performs handover type control, specifically:
  • the first base station sends a preparation handover request to the second base station when determining that the current type of handover is supported according to the type of the second base station and the handover policy; the first base station uses its preparation handover request to set its own An identifier is provided to the second base station;
  • the first base station When it is determined that the current type of handover is not supported, the first base station deletes the identifier of the second base station from the candidate target base station list stored by itself.
  • the first base station is a serving base station, and when the second base station is a target base station, the second base station performs handover type control, specifically:
  • the second base station determines that the current type of handover is supported according to the type of the first base station and the handover policy, and determines that the handover request of the mobile terminal is accepted when it is determined that the preset precondition is met;
  • the method further includes: returning a successful preparation handover request response to the first base station;
  • the method further includes: returning a failed preparation handover request response to the first base station, and notifying the first indication by the indication carried in the failed preparation handover request response
  • One base station The second base station does not support the current type of handover.
  • the first base station is a target base station, and when the second base station is a serving base station, the first base station performs handover type control, specifically: The first base station sends a context information request to the second base station when determining that the current type of handover is supported according to the type of the second base station and the handover policy; the first base station requests itself through the context information request The identifier is provided to the second base station;
  • the first base station is a target base station, and when the second base station is a serving base station, the second base station performs handover type control, specifically:
  • the second base station returns a successful context information response to the first base station when determining that the current type of handover is supported according to the type of the first base station and the handover policy;
  • a failure of the context information response is returned to the first base station, and the first base station is notified by the indication carried in the failed context information response: the second base station does not support the current type of handover. .
  • the method further includes: when the first base station confirms that the preset precondition is met, returning a successful ranging response to the mobile terminal; When it is confirmed that the preset precondition is not met, returning a failed ranging response to the mobile terminal, rejecting the handover request of the mobile terminal;
  • the method further includes: the first base station returns a failed ranging response to the mobile terminal, and rejects the handover request of the mobile terminal.
  • a switching type control system for a home base station comprising: a configuration unit, a first base station, and a second base station, where
  • the configuration unit is configured to configure a handover policy for the first base station and the second base station; the first base station is configured to acquire an identifier of the second base station, and confirm the second according to the obtained list of nearby base stations
  • the type of the base station is further configured to perform handover type control according to the type of the second base station and the handover policy, and is further configured to provide the second base station with its own identifier;
  • the second base station is configured to acquire the identifier of the first base station, and confirm the type of the first base station according to the obtained list of nearby base stations; and further, according to the type of the first base station and the handover policy, Perform switching type control.
  • the second base station is the serving base station; when the first base station is the serving base station, the second base station is the target base station;
  • the serving base station is a base station currently serving a mobile terminal;
  • the target base station is a base station to which the mobile terminal is to be cut;
  • the types of the first base station or the second base station include: a home base station and a macro base station.
  • the system further includes a mobile terminal
  • the mobile terminal is configured to perform handover from the first base station to the second base station or from the second base station to the first base station according to the handover type control performed by the first base station and the second base station.
  • the system further includes a network side entity, configured to provide the neighboring base station list to the first base station or the second base station;
  • the first base station and the second base station respectively comprise a listening unit, which is configured to listen to an air interface broadcast message sent by a base station in the vicinity of the air, and obtain the indication information of the base station type in the air interface broadcast message to obtain a list of nearby base stations.
  • the serving base station and the target base station preferentially acquire the identity of the other party, and determine the type of the other party according to the list of nearby base stations stored by itself; and then, according to the type of the other party and the pre-configured
  • the switching policy is used to perform the control of the handover type.
  • the control function of the handover type supported by the network to the home base station in the mobile terminal handover procedure based on the home base station system can be implemented.
  • FIG. 1 is a schematic structural diagram of a communication network including a home base station
  • FIG. 2 is a schematic diagram of a handover procedure of a mobile terminal based on a home base station system in the prior art
  • FIG. 3 is a schematic flowchart of a handover type control method of a home base station according to the present invention
  • 4 is a schematic flowchart of Embodiment 1 of a method for controlling a handover type of a base station according to the present invention
  • FIG. 5 is a schematic flowchart of a second embodiment of a method for controlling handover type of a base station according to the present invention
  • FIG. 7 is a schematic structural diagram of a handover type control system of a home base station according to the present invention.
  • the switching type control method of the home base station of the present invention includes:
  • Step 301 Configure a handover policy for the first base station and the second base station.
  • Step 302 The first base station acquires the identifier of the second base station, and confirms the type of the second base station according to the obtained list of nearby base stations.
  • the first base station performs switching type control according to the type of the second base station and the handover policy.
  • Step 303 The first base station provides its own identifier to the second base station, and the second base station confirms the type of the first base station according to the identifier of the first base station and the obtained list of nearby base stations.
  • the second base station is configured according to the type and switching policy of the first base station. , Perform switching type control.
  • the second base station is the serving base station; when the first base station is the serving base station, the second base station is the target base station;
  • the serving base station is a base station currently serving the mobile terminal; the target base station is a base station to be cut by the mobile terminal.
  • the types of the first base station or the second base station include: a home base station and a macro base station.
  • the operator customizes a set of policies related to the handover type control, which is simply referred to as a handover policy.
  • the strategy may be represented by a bitmap. For:
  • bit 0x00 can be set to indicate that the mobile terminal is supported/not supported to switch from the macro base station to the home base station (at this time, the home base station serves as the target base station); setting bit 0x01 indicates that the mobile terminal is supported/not supported to switch from the home base station to the macro base station. (At this time, the home base station serves as a serving base station); Setting bit 0x02 indicates that the mobile terminal is supported/not supported to switch between the current home base station and another home base station (in this case, the current home base station can also serve as the target base station as the serving base station).
  • bits 0x00 and 0x01 are reserved, and the bits 0x02 and 0x03 are defined.
  • the setting bit 0x02 indicates that the mobile terminal is supported/not supported to switch from the current home base station to another home base station (at this time, the current home base station serves as the serving base station).
  • Setting bit 0x03 indicates that the mobile terminal is supported/not supported to switch from another home base station to the current home base station (at this time, the current home base station serves as the target base station).
  • the network side entity needs to send the policy to the handover control function of the home base station:
  • the network-side entity such as the network management system (ie, the home base station management system) or the self-organizing network function server (SON Server, Self Organizing Network Function Server) sends the policy to the home base station; of course, the home base station accesses the network as the base station. Thereafter, the network side entity sends the policy to the home base station.
  • the home base station it is also required to obtain, from the network side entity, an identifier of one or more base stations in the vicinity of the home base station, such as a base station identifier (BSID, Base Station Identifier), a network access identifier (NAI, Network Access Identifier), and the like.
  • BSID Base Station Identifier
  • NAI Network Access Identifier
  • the base station in the vicinity of the home base station refers to another base station that overlaps with the coverage of the home base station, or the distance from the home base station is less than a certain threshold, or is in the same area as the home base station.
  • the network side entity may send the macro base station or the home base station in the vicinity of the home base station to the home base station in the form of a list, and save it by the home base station.
  • the home base station has a list of nearby macro base stations or a list of nearby home base stations, and the list stores the identifiers of the macro base stations or the home base stations;
  • the network side entity sends the macro base station and the home base station in the vicinity of the home base station to the current home base station by using two lists, wherein one list stores the identifier of the macro base station near the home base station, and another list stores the Identification of other home base stations near the home base station; this
  • the home base station has a list of nearby macro base stations, and a list of nearby home base stations, the two lists being logically independent of the two lists;
  • the network side entity may add a corresponding identifier to the neighboring base station list of the home base station that is sent to the home base station (the identifier may be set as needed) to indicate which neighboring base stations in the list are macro base stations, and which neighbor base stations are located.
  • the neighboring base station list may be a neighbor (or neighboring cell) base station list, which includes identifiers of nearby macro base stations of the home base station and/or other nearby home base stations.
  • a partial list of nearby macro base stations in the neighboring base station list may be referred to as a nearby macro base station list; a partial list of nearby home base stations in the neighboring base station list is referred to as a nearby home base station list.
  • the list of nearby macro base stations and the list of nearby home base stations may be collectively referred to as a list of nearby base stations of the home base station.
  • the network side entity can transmit the above list of nearby base stations to the home base station in a variety of ways.
  • the network-side entity such as the configuration server, or the policy control server, or the network management system (ie, the home base station management system), or the self-organizing network server sends the foregoing list of nearby base stations.
  • the list of nearby macro base stations of the home base station does not change.
  • the base station can carry information indicating its own type (cell type) in the air interface broadcast message (such as the neighboring area broadcast message) sent by the base station, and the base station can indicate that it is a macro base station or a home base station by using the information.
  • the above-mentioned home base station may also acquire the base station type of the surrounding base station by listening to the air interface broadcast message sent by the base station nearby. Based on the detected base station type information, the above list of nearby macro base stations and/or a list of nearby home base stations can also be obtained.
  • the handover class of the home base station of the present invention will be described below through specific embodiments. Type control scheme.
  • FIG. 4 is a schematic flow chart of Embodiment 1 of a method for controlling a handover type of a home base station according to the present invention, including:
  • Step 401 The mobile terminal sends a mobile request to the serving base station.
  • the mobile terminal has been connected to the mobile communication network and is ready to perform the handover operation.
  • the mobile terminal initiates a handover request to the serving base station currently serving the mobile terminal.
  • the handover request is a mobile request, and the request carries a handover request.
  • a candidate target base station selected by the group of mobile terminals.
  • the mobile terminal can determine the above-mentioned set of candidate target base stations by measuring the surrounding wireless signal strength and quality.
  • the candidate target base stations may include one or more macro base stations and/or home base stations at the same time.
  • the set of candidate target base stations are carried in a mobile request in a list, where the identifiers of the candidate target base stations (such as BSID, NAI, etc.) may be stored in the list, so that the serving base station can acquire the candidate target base station.
  • the identifiers of the candidate target base stations such as BSID, NAI, etc.
  • the same set of identification methods may be used for setting the identifier in the nearby base station list and the identifier in the candidate target base station, such as using the BSID or the NAI.
  • Step 402 The serving base station obtains the identifier of the candidate target base station from the candidate target base station list, determines the type of the candidate target base station according to the list of nearby base stations already owned by the serving base station, and performs handover type control according to the handover policy.
  • the serving base station is a macro base station, it is not necessary to confirm the type of the candidate target base station, nor does it need to perform handover type control. By default, it supports the mobile terminal to perform the current type of handover, and directly performs step 403.
  • the serving base station is a home base station, and if the home base station locally only stores a list of nearby macro base stations, the home base station first traverses its locally stored list of nearby macro base stations, and determines whether the identifier of the candidate target base station exists nearby. In the macro base station list; if yes, it is determined that the candidate target base station is a macro base station; otherwise, the candidate target base station is determined to be a home base station.
  • the home base station locally only stores the list of nearby home base stations, the target of the candidate target base station When the knowledge exists in the list, it is determined that the candidate target base station is a home base station; otherwise, it is a macro base station. If the home base station locally saves the list of nearby home base stations and stores the list of nearby home base stations, the home base station determines whether the identifier exists in the nearby macro base station list or in the nearby home base station list according to the identifier of the candidate target base station. If it exists in the nearby macro base station list, it is determined that the candidate target base station is a macro base station; if it exists in the nearby home base station list, it is determined that the candidate target base station is a home base station.
  • the home base station may determine the type of the candidate target base station according to a preset processing method (generally customized by the operator): It is a macro base station or a home base station, or listens to the base station indicated by the identifier on the air interface to obtain its base station type, or directly returns an error, ends the flow, and the like.
  • a preset processing method generally customized by the operator: It is a macro base station or a home base station, or listens to the base station indicated by the identifier on the air interface to obtain its base station type, or directly returns an error, ends the flow, and the like.
  • the two lists may be two logically independent lists, or may exist in a nearby base station list.
  • the serving base station After confirming the type of the candidate target base station, the serving base station (home base station) performs handover type control, specifically:
  • the serving base station (home base station) according to the switching policy stored by itself, if the policy stipulates that the mobile terminal does not support the handover from the home base station to the macro base station, according to the type of the candidate target base station, if the candidate target base station is a macro base station, the serving base station will The candidate target base station is deleted from the candidate target base station list; if the candidate target base station is not a macro base station (ie, a home base station), the current serving base station supports this type of handover.
  • the serving base station deletes the candidate target base station from the candidate target base station list. If the candidate target base station is not a home base station (ie, a macro base station), the current serving base station supports this type of handover.
  • the handover policy specifies that the current serving base station supports the mobile terminal from the serving base station (home)
  • the candidate target base station home base station or macro base station;
  • the type of the candidate target base station conforms to the handover policy
  • the current serving base station supports the mobile terminal to perform the current type of handover.
  • Step 403 The serving base station sends a preparation handover request to the candidate target base station, where the request carries the identifier of the serving base station, and the identifier of the anchor identifier of the mobile terminal and the identifier of the anchor access gateway.
  • the serving base station may first send the preparation handover request to the relay access gateway, and then the relay access gateway will prepare the handover request. Forwarded to the candidate target base station.
  • Step 404 The candidate target base station acquires the identifier of the serving base station from the preparation handover request, determines the type of the serving base station according to the list of nearby base stations already owned by the candidate target base station, and performs handover type control according to the handover policy.
  • the candidate target base station is a home base station, it is not necessary to determine the type of the serving base station, and does not need to perform handover type control. By default, it supports the mobile terminal to perform the current type of handover, and directly performs step 405; Then, according to the method described in step 402, determining the type of the serving base station, for example: the candidate target base station first traverses its locally stored list of nearby macro base stations, and determines whether the identity of the serving base station exists in the list of nearby macro base stations; if yes, The serving base station is determined to be a macro base station; otherwise, the serving base station is determined to be a home base station.
  • the candidate target base station After confirming the type of the serving base station, the candidate target base station (home base station) performs handover type control, specifically:
  • the candidate target base station (home base station) according to the switching policy stored by itself, if the policy stipulates that the candidate target base station does not support the mobile terminal to handover from the macro base station to the home base station, according to the type of the serving base station, if the serving base station is a macro base station, the candidate The target base station will reject the above preparation handover request accordingly, and the process proceeds to step 407, by transmitting a failed preparation handover request response, the response carrying an indication for notifying the serving base station that the candidate target base station (home base station) does not support the type.
  • the candidate target base station rejects the handover request of the mobile terminal; if the serving base station If it is not a macro base station, the current candidate target base station supports the mobile terminal to perform the current type of handover. If the policy stipulates that the current candidate target base station (home base station) does not support the mobile terminal to switch from the home base station to the home base station, according to the type of the serving base station, if the serving base station is the home base station, the current candidate target base station does not support the mobile terminal to perform the current type.
  • the candidate target base station will reject the preparation handover request accordingly, and proceeds to step 407 to return a failed preparation handover request response to the serving base station, the response carrying an indication for informing the serving base station of the candidate target
  • the base station (home base station) does not support this type of handover; if the serving base station is not a home base station, the current candidate target base station supports the mobile terminal to perform the current type of handover.
  • the serving base station when performing step 408, the serving base station returns a failed mobile request response to the mobile terminal, rejecting the mobile terminal's current handover request; however, as long as there is a candidate The target base station accepts the current type of handover, and the serving base station does not return a failed mobile request response to the mobile terminal.
  • the handover policy specifies that the current candidate target base station supports the handover of the mobile terminal from the serving base station (macro base station, or home base station) to the home base station, the current candidate target base station supports the mobile terminal to perform the current type of handover.
  • the candidate target base station is a macro base station, it supports the mobile terminal to perform the current type of handover by default.
  • Step 405 The candidate target base station interacts with the anchor authenticator of the mobile terminal for the context information of the mobile terminal.
  • the candidate target base station may find an anchor authenticator corresponding to the mobile terminal by preparing an identifier of the anchor authenticator in the handover request.
  • the interaction of the context information of the mobile terminal in this step is a prior art, and details are not described herein again.
  • Step 406 The candidate target base station performs data channel pre-establishment for the mobile terminal between itself and the anchor access gateway of the mobile terminal.
  • the candidate target base station may find the identifier of the anchor access gateway in preparing the handover request. Go to the corresponding anchor access gateway.
  • the data channel pre-establishment is initiated by the candidate target base station. The implementation of this step is prior art, and details are not described herein again.
  • Step 407 The candidate target base station returns a preparation handover request response to the serving base station, where the response indicates whether the candidate target base station accepts the handover request of the mobile terminal.
  • the failed preparation request handover response carries an indication to inform the serving base station that the candidate target base station does not accept the handover request of the mobile terminal. : Switching of the current type is not supported.
  • the candidate target base station When the candidate target base station does not accept the handover request of the mobile terminal, there is another case: when the candidate target base station (macro base station or home base station) supports the current type of handover, it is also required to determine whether to accept the mobile terminal according to a preset precondition.
  • the handover request such as: whether the current candidate target base station has sufficient resources, whether the context information of the mobile terminal interacting with the anchor authenticator is valid, and whether the data channel pre-establishment is successful or the like.
  • the current candidate target base station if the current candidate target base station only satisfies the handover type of the present invention and does not satisfy any of the other conditions, the current candidate target base station does not accept the handover request of the mobile terminal.
  • the candidate target base station carries an indication by the failed preparation handover request response, and is used to notify the serving base station that the current candidate target base station does not accept the handover request of the mobile terminal.
  • the serving base station returns a failed mobile request response to the mobile terminal, rejecting the handover request; however, as long as one candidate target base station accepts the mobile Upon the request of the terminal, the serving base station will not return a failed mobile request response to the mobile terminal.
  • the candidate target base station accepts the handover request of the mobile terminal only when the handover type of the present invention and the other preset preconditions described above are satisfied. At this time, the candidate target base station transmits a successful preparation handover request response to the service base station.
  • Step 408 The serving base station returns a mobile request response to the mobile terminal.
  • the service base Since the serving base station sends a preparation handover request to a plurality of candidate target base stations, the service base is The station receives multiple preparation handover request responses from different candidate target base stations, including macro base stations and home base stations.
  • the serving base station After the serving base station collects the preparation handover request responses of all candidate target base stations, when it is confirmed that all candidate target base stations reject the handover request of the mobile terminal, the serving base station returns a failed mobile request response to the mobile terminal.
  • the service base station returns a successful mobile request response to the mobile terminal, informing the mobile terminal that it is ready to perform the handover, which includes the identity of one or more potential target base stations.
  • the potential target base station is the candidate target base station that receives the mobile terminal handover request obtained in step 407.
  • the identifier of the potential target base station may be formed into a list of potential target base stations and carried in the mobile request response; the mobile terminal confirms the target base station to be switched in according to the list.
  • Step 409 The serving base station sends a preparation handover confirmation to the potential target base station to prepare for performing handover of the subsequent mobile terminal from the serving base station to the potential target base station.
  • FIG. 5 is a schematic flow chart of Embodiment 2 of a method for controlling a handover type of a home base station according to the present invention, including:
  • Step 501 The serving base station is prepared to perform a handover operation of the mobile terminal.
  • the mobile terminal has accessed the serving base station, and the serving base station performs a handover operation according to the communication status decision of the mobile terminal.
  • the serving base station decides to switch the mobile terminal currently supporting its service to the base station with less peripheral load according to its own load condition.
  • the handover procedure of the mobile terminal in this embodiment is initiated by the serving base station instead of the mobile terminal.
  • the serving base station selects a neighboring group of base stations as candidate target base stations.
  • the identifiers of the candidate target base stations are grouped into one candidate target base station list and stored locally.
  • the adjacent base station refers to another base station that overlaps with the coverage of the serving base station, or the distance from the serving base station is less than a certain threshold, or is in the same area as the serving base station.
  • the processing from step 502 to step 509 is the same as step 402 to step 409, and details are not described herein again.
  • the serving base station returns a mobile notification to the mobile terminal.
  • FIG. 6 is a schematic flowchart of Embodiment 3 of a method for controlling a handover type of a home base station according to the present invention.
  • the embodiment is an uncontrolled handover procedure, that is, the mobile terminal directly sends a handover request to the candidate target base station, as shown in the figure, including:
  • Step 601 The mobile terminal sends a ranging request to the candidate target base station, and carries the identifier of the serving base station.
  • the mobile terminal has accessed the home base station system, and performs a handover operation based on the current serving base station in the home base station system; all neighboring base stations in the home base station system and the current serving base station can serve as candidate target base stations.
  • the mobile terminal directly sends a handover request to the candidate target base station to initiate a handover procedure.
  • the handover request is a ranging request to initiate an uncontrolled handover procedure.
  • Step 602 The candidate target base station acquires the identifier of the serving base station from the ranging request, determines the type of the serving base station according to the list of nearby base stations already owned by the candidate target base station, and performs handover type control according to the handover policy.
  • the type of the serving base station does not need to be determined, and the handover type control does not need to be performed, and step 603 is directly performed. If the candidate target base station is a home base station, the type of the serving base station is determined as described in step 404. I won't go into details here.
  • the candidate target base station (home base station) performs the handover type control, and the specific implementation is the same as step 404, and details are not described herein again.
  • step 603 if it is determined that the candidate target base station supports the current type of handover, step 603 is performed; if it is determined that the candidate target base station does not support the current type of handover, the jump proceeds to step 608, by sending a failure to the mobile terminal.
  • the ranging response rejects the mobile terminal from performing the current type of handover, ie rejecting the handover request of the mobile terminal.
  • Step 603 The candidate target base station sends a context information request to the serving base station to request the The identifier of the anchor authenticator of the mobile terminal and the identifier of the anchor access gateway also carry the identifier of the candidate target base station.
  • Step 604 The serving base station obtains the identifier of the candidate target base station from the context information request, determines the type of the candidate target base station according to the list of nearby base stations already owned by the serving base station, and performs handover type control according to the handover policy.
  • the serving base station is a macro base station, it is not necessary to determine the type of the serving base station, and the handover type control is not required to be performed, and step 605 is directly performed; if the candidate target base station is a home base station, the type of the serving base station is determined as described in step 404. I won't go into details here.
  • the serving base station (home base station) performs the handover type control, and the specific processing is the same as step 402, and details are not described herein again.
  • the serving base station does not support the mobile terminal to perform the current type of handover, and the serving base station returns a failed context information response to the candidate target base station, and the indication carried in the response informs the candidate target base station that it does not support this type of handover. Then, in step 608, the candidate target base station returns a failed ranging response to the mobile terminal, rejecting the handover request of the mobile terminal; if the serving base station supports the mobile terminal to perform the current type of handover, step 605 is performed.
  • Step 605 The serving base station returns a context information response to the candidate target base station.
  • the successful target information response is returned to the candidate target base station, carrying the identifier of the anchor authenticator and the identifier of the anchor access gateway for performing the context information interaction in subsequent steps 606 and 607. And when the data channel is pre-established.
  • Step 608 The target base station sends a ranging response message to the terminal, accepting or rejecting the handover request of the terminal.
  • the candidate target base station transmits a ranging response to the mobile terminal to inform the mobile terminal to accept or reject the handover request of the mobile terminal.
  • the candidate target base station rejects the handover request of the mobile terminal.
  • the candidate target base station further needs to determine whether it satisfies all preset preconditions, and if any one of them is not satisfied, The mobile terminal returns a failed ranging response, rejects the handover request of the mobile terminal; if satisfied, returns a successful ranging response to the mobile terminal, accepting the handover request of the mobile terminal.
  • Step 609 When the candidate target base station accepts the handover request of the mobile terminal, perform a handover operation of the subsequent mobile terminal from the serving base station to the target base station.
  • the serving base station and the corresponding target base station first determine the type of the other party based on the obtained list of nearby macro cellular base stations, and then perform handover type control.
  • the current serving base station home base station
  • the home base station belongs to the same user.
  • the macro base station attribute may be marked for the specific home base station in the nearby base station list of the current serving base station, or other preset tags may be used to prompt the current serving base station to execute.
  • the embodiments enumerated in the present invention only emphasize that the home base station needs to perform the handover type control described in the present invention, and it is assumed that the macro base station does not perform the operation.
  • the present invention is a switching strategy customized for a home base station, and a method for a home base station to acquire a list of nearby base stations is also applicable to a macro base station.
  • the operator can configure the corresponding handover strategy for the macro base station through the configuration server on the network side, or the policy control server, or the network management system, or the self-organizing network server, and the bitmap representation method can also be used.
  • the handover strategy applicable to the macro base station such as supporting/not supporting the handover of the mobile terminal from the current macro base station to the home base station (in this case, the macro base station serving as the serving base station); supporting/not supporting the handover of the mobile terminal from the home base station to the current macro base station (At this time, the macro base station serves as the target base station); Supports/does not support the mobile terminal at the current macro base station and other Acer bases Switch between stations, etc.
  • the macro base station may also obtain the above-mentioned list of nearby base stations of the present invention from the network side entity or by listening to the air interface broadcast message of the nearby base station.
  • the handover type control method of the present invention is also applicable to a macro base station based on a handover strategy customized for the macro base station and a list of nearby base stations acquired by the macro base station.
  • the present invention provides a handover type control system for a home base station, as shown in FIG. 7, comprising: a configuration unit 10, a first base station 20 and a second base station 30, wherein
  • the configuration unit 10 is configured to configure a handover policy for the first base station 20 and the second base station 30.
  • the first base station 20 is configured to acquire an identifier of the second base station 30, and confirm the type of the second base station 30 according to the obtained list of nearby base stations. It is further configured to perform handover type control according to the type and handover policy of the second base station 30; and provide the second base station 30 with its own identifier;
  • the second base station 30 is configured to obtain the identifier of the first base station 20, and confirm the type of the first base station 20 according to the obtained list of nearby base stations; and is further configured to perform handover type control according to the type of the first base station 20 and the handover policy.
  • the second base station 30 is the serving base station; when the first base station 20 is the serving base station, the second base station 30 is the target base station;
  • the serving base station is a base station currently serving the mobile terminal;
  • the target base station is a base station to be cut by the mobile terminal;
  • the types of the first base station 20 or the second base station 30 include: a home base station and a macro base station.
  • the system further includes a mobile terminal 40
  • the mobile terminal 40 is configured to perform handover from the first base station 20 to the second base station 30, or from the second base station 30 to the first base station 20 according to the handover type control performed by the first base station 20 and the second base station 30;
  • the system may further comprise a network side entity 50 for the first base station 20 or the second base Station 30 provides a list of nearby base stations;
  • the first base station 20 and the second base station 30 may respectively include a listening unit for intercepting the air interface broadcast message sent by the base station in the vicinity of the air, and obtaining the indication information of the base station type in the air interface broadcast message to obtain a list of nearby base stations.

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Abstract

本发明公开了一种家用基站的切换类型控制方法和系统，为第一基站和第二基站配置切换策略，该方法还包括：第一基站获取第二基站的标识，并依据获取的附近基站列表确认第二基站的类型；第一基站依据第二基站的类型和切换策略，执行切换类型控制；第一基站将自身的标识提供给第二基站；第二基站依据第一基站的标识和获取的附近基站列表确认第一基站的类型；第二基站依据第一基站的类型和切换策略，执行切换类型控制。通过本发明，能够在基于家用基站系统的移动终端切换流程中实现网络对家用基站所支持的切换类型的控制功能。

Description

一种家用基站的切换类型控制方法和系统 技术领域
本发明涉及家用基站通信领域， 特别是指一种家用基站的切换类型控 制方法和系统。 背景技术
为了给移动用户提供更高的业务速率并降低使用高速率服务所需要的 费用， 同时， 为了弥补已有分布式蜂窝无线通信系统覆盖的不足， 通常会 在家庭、 办公区域等场所设置家用基站。 家用基站是一种小型、 低功率的 基站， 具有实用、 便捷、 低功率输出等优点。
图 1是包含家用基站的通信网络结构示意图， 如图 1所示， 家用基站 可以通过接入网关这个逻辑网元接入到核心网的鉴权授权计费 （ AAA , Authentication、 Authorization and Accounting )月良务器。 家用基占和接入网 关之间可以存在一个安全网关。 安全网关可以与接入网关合设也可以与接 入网关分设。 安全网关的主要作用是保障家用基站和接入网关、 用户数据 服务器之间的链路安全。
接入网关的主要功能包括： 验证家用基站的安全性、 处理家用基站的 注册、 对家用基站进行运行维护管理、 根据运营商的要求对家用基站进行 配置和控制、 在核心网和家用基站之间进行数据交换。
AAA服务器是通信网络中的重要设施， 用于实现网络运营商对数据、 用户的控制和管理， 提供认证授权及账户服务， 通常与网络访问控制、 网 关服务器、 数据库以及用户信息目录等协同工作。
锚点鉴权器（AA, Anchor Authenticator ) 的主要功能是在移动终端入 网时向移动终端提供接入鉴权服务； 在移动终端入网以后、 退网之前， 负 责管理和维护移动终端的上下文信息。 通常锚点鉴权器可以放置在接入网 关中。
锚点接入网关的作用是驻留锚点数据通道功能， 来自或者发往移动终 端的数据都需要通过该锚点接入网关。
支持移动终端在两个相邻基站之间的切换是目前移动通信的一个重要 功能， 也是实现保障移动终端业务连续的重要前提。 切换是指移动终端从 当前为其提供无线服务的基站 （服务基站）移动到一个新的基站 （目标基 站） 下， 并支持该新的基站提供的无线服务的过程。 这样的一对服务基站 和目标基站互为彼此的对端基站。
在一个含有家用基站的移动通信网中， 服务基站 /目标基站可以是宏基 站， 也可以是家用基站。 根据家用基站的对端基站的类型， 与家用基站相 关的切换包含多种类型， 例如， 移动终端从宏基站切换到家用基站、 移动 终端从家用基站切换到宏基站、 移动终端在两个临近的家用基站之间切换 等。 可以将上述根据家用基站的对端基站的类型， 与家用基站相关的切换 包含的多种类型， 称为家用基站支持的切换类型。
家用基站由用户购置， 且该家用基站用户必须为家用基站与运营商签 约之后， 才能使用家用基站提供的服务。 这些服务包括： 用户使用自己的 移动终端通过该家用基站接入到移动通信网络、 或者用户的亲戚、 朋友使 用他们各自的移动终端通过该家用基站接入到移动通信网络。
一般， 运营商都会向家用基站用户提供差异性服务， 如根据家用基站 用户的级别， 向用户提供不同的服务。 网络可以控制该用户的家用基站同 时向几个移动终端提供服务。 比如， 对于高级别的家用基站用户， 其家用 基站可以同时服务五个移动终端； 而低级别的家用基站则只能一次服务一 个移动终端。
网络可以控制支持该用户的家用基站服务的移动终端的 QoS级别。 比 如， 对于高级别的家用基站用户， 支持其家用基站服务的移动终端可以享 受网络为其提供的较高的 QoS保障； 而对于低级别的家用基站用户， 支持 其家用基站服务的移动终端需要承受网络为其提供的较低的 QoS保障。
网络还可以控制该用户的家用基站能向移动终端提供何种程度的业务 连续保障， 即控制该家用基站所能支持的切换类型， 比如：
对于高级别的家用基站用户， 其家用基站能向移动终端提供上述所有 类型的切换； 而对于低级别的家用基站用户， 其家用基站只能向移动终端 提供上述切换类型中的一种 （比方说， 只支持移动终端从该家用基站切换 到周围的宏基站上， 而不支持它切换到另外一个家用基站上）， 甚至根本不 向移动终端提供切换功能。
上述网络对家用基站所支持的切换类型的控制， 简称为切换类型控制。 现有技术中， 基于图 1家用基站系统的移动终端切换流程如图 2所示， 其中， 服务基站为当前正在为移动终端提供服务的基站， 目标基站是移动 终端可切换进入（切入） 的基站， 这样的目标基站可以有一个或者多个， 服务基站和目标基站都可以是家用基站， 具体步骤描述如下：
步骤 201 , 在切换准备阶段， 移动终端向服务基站发起移动请求， 请求 中携带一组移动终端选择的候选目标基站。
步骤 202,服务基站向每个候选目标基站都发送一个准备切换请求， 该 请求中携带移动终端的锚点鉴权器的标识。
步骤 203 , 在收到准备切换请求以后， 候选目标基站与锚点鉴权器（根 据锚点鉴权器的标识找到对应的锚点鉴权器）之间交换与该移动终端相关 的上下文信息。
步骤 204,由候选目标基站发起为该移动终端在候选目标基站与锚点接 入网关之间的注册数据通道预建立。
步骤 205 ,候选目标基站向服务基站返回准备切换请求响应， 其中指示 了该候选目标基站是否支持准备切换请求。
步骤 206,服务基站向移动终端发送移动请求响应， 其中包含一个或者 多个该移动终端可以切入的潜在目标基站 （支持准备切换请求的候选目标 基站）。
步骤 207, 服务基站向潜在目标基站发送准备切换确认消息。
从图 2 的流程可以看出， 现有的切换流程未考虑切换类型控制问题， 因此， 现有技术中的切换流程不能实现网络控制家用基站所支持的切换类 型的功能。 发明内容
有鉴于此， 本发明的主要目的在于提供一种家用基站的切换类型控制 方法和系统， 能够在基于家用基站系统的移动终端切换流程中实现网络对 家用基站所支持的切换类型的控制功能。
为达到上述目的， 本发明的技术方案是这样实现的：
一种家用基站的切换类型控制方法， 为第一基站和第二基站配置切换 策略， 该方法还包括：
所述第一基站获取所述第二基站的标识， 并依据获取的附近基站列表 确认所述第二基站的类型； 所述第一基站依据所述第二基站的类型和所述 切换策略， 执行切换类型控制；
所述第一基站将自身的标识提供给所述第二基站；
所述第二基站依据所述第一基站的标识和获取的附近基站列表确认所 述第一基站的类型； 所述第二基站依据所述第一基站的类型和所述切换策 略， 执行切换类型控制。
其中， 所述第一基站为目标基站时， 所述第二基站为服务基站； 所述 第一基站为服务基站时， 所述第二基站为目标基站；
所述服务基站为当前为移动终端提供服务的基站； 所述目标基站为移 动终端要切入的基站；
所述第一基站或第二基站的类型包括： 家用基站和宏基站。
为所述第一基站和第二基站配置切换策略， 具体为： 为所述第一基站 和第二基站分别配置相应的切换策略， 并由网络侧实体将所述切换策略发 送给所述第一基站或第二基站；
所述网络侧实体包括以下至少之一： 配置服务器、 策略控制服务器、 家用基站管理系统、 自组织网络服务器。
所述切换策略为当前基站支持或不支持的切换类型， 包括：
支持或不支持移动终端从家用基站切换到宏基站；
和 /或支持或不支持移动终端从宏基站切换到家用基站；
和 /或支持或不支持移动终端在家用基站之间切换；
和 /或支持或不支持移动终端从当前家用基站切换到另一个家用基站； 和 /或支持或不支持移动终端从另一个家用基站切换到当前家用基站。 第一基站确认第二基站的类型， 或者所述第二基站确认第一基站的类 型， 具体为：
所述附近基站列表为附近宏基站列表时，
所述第一基站判定所述第二基站的标识存在于附近宏基站列表时， 确 认所述第二基站为宏基站； 反之， 确认所述第二基站为家用基站；
所述第二基站判定所述第一基站的标识存在于附近宏基站列表时， 确 认所述第一基站为宏基站； 反之， 确认所述第一基站为家用基站；
所述附近基站列表为附近家用基站列表时，
所述第一基站判定所述第二基站的标识存在于附近家用基站列表时， 确认所述第二基站为家用基站； 反之， 确认所述第二基站为宏基站；
所述第二基站判定所述第一基站的标识存在于附近家用基站列表时， 确认所述第一基站为家用基站； 反之， 确认所述第一基站为宏基站； 所述附近基站列表为附近宏基站列表和附近家用基站列表时， 所述第一基站判断所述第二基站的标识存在于附近宏基站列表或附近 家用基站列表中， 若存在于附近宏基站列表， 则确认所述第二基站为宏基 站； 若存在于附近家用基站列表， 则确认所述第二基站为家用基站；
所述第二基站判断所述第一基站的标识存在于附近宏基站列表或附近 家用基站列表中， 若存在于附近宏基站列表， 则确认所述第一基站为宏基 站； 若存在于附近家用基站列表， 则确认所述第一基站为家用基站。
所述第一基站或第二基站获取附近基站列表， 具体为： 网络侧实体将 所述第一基站或第二基站附近的宏基站、 和 /或家用基站的标识以列表的形 式发送给所述第一基站或第二基站， 得到所述附近宏基站列表和 /或附近家 用基站列表；
或者， 所述网络侧实体在向所述第一基站或第二基站下发的临近基站 列表中， 通过相应的标识来指示所述临近基站列表中的宏基站和 /或家用基 站， 将所述宏基站的部分临近基站列表作为所述附近宏基站列表， 将所述 家用基站的部分临近基站列表作为所述附近家用基站列表；
或者， 所述第一基站或第二基站侦听自身附近的基站发出的空口广播 消息， 获取所述空口广播消息中基站类型的指示信息， 得到附近宏基站列 表和 /或附近家用基站列表。
所述第一基站为服务基站， 第二基站为目标基站时， 所述第一基站获 取第二基站的标识， 具体为：
移动终端发起切换请求时， 向所述第一基站发送移动请求， 所述移动 请求中携带由移动终端确定的所述第二基站的标识， 所述第一基站获取所 述第二基站的标识；
或者， 服务基站发起移动终端的切换请求时， 所述第一基站选择临近 的基站作为所述第二基站， 所述第一基站获取所述第二基站的标识； 所述第一基站为目标基站， 所述第二基站为服务基站时， 所述第一基 站获取第二基站的标识， 具体为：
移动终端发起切换请求时， 向所述第一基站发送测距请求， 所述测距 请求中携带所述第二基站的标识， 所述第一基站获取所述第二基站的标识。
所述第一基站为服务基站， 第二基站为目标基站时， 所述第一基站执 行切换类型控制， 具体为：
所述第一基站依据所述第二基站的类型和所述切换策略， 判定支持当 前类型的切换时， 向所述第二基站发送准备切换请求； 第一基站通过所述 准备切换请求将自身的标识提供给所述第二基站；
判定不支持当前类型的切换时， 所述第一基站将所述第二基站的标识 从自身存储的候选目标基站列表中删除。
所述第一基站为服务基站， 第二基站为目标基站时， 所述第二基站执 行切换类型控制， 具体为：
所述第二基站依据所述第一基站的类型和所述切换策略， 判定支持当 前类型的切换， 并在判定满足预设的前置条件时， 判定接受所述移动终端 的切换请求；
判定不支持当前类型的切换时， 判定拒绝所述移动终端的切换请求。 第二基站判定接受所述移动终端的切换请求时， 该方法进一步包括： 向所述第一基站返回成功的准备切换请求响应；
第二基站判定拒绝所述移动终端的切换请求时， 该方法进一步包括： 向所述第一基站返回失败的准备切换请求响应， 通过所述失败的准备切换 请求响应中携带的指示告知所述第一基站： 第二基站不支持当前类型的切 换。
所述第一基站为目标基站， 第二基站为服务基站时， 所述第一基站执 行切换类型控制， 具体为： 所述第一基站依据所述第二基站的类型和所述切换策略， 判定支持当 前类型的切换时， 向所述第二基站发送上下文信息请求； 第一基站通过所 述上下文信息请求， 将自身的标识提供给所述第二基站；
判定不支持当前类型的切换时， 向所述移动终端发送失败的测距响应， 拒绝移动终端的切换请求。
所述第一基站为目标基站， 第二基站为服务基站时， 所述第二基站执 行切换类型控制， 具体为：
第二基站依据所述第一基站的类型和所述切换策略， 判定支持当前类 型的切换时， 向所述第一基站返回成功的上下文信息响应；
判定不支持当前类型的切换时， 向所述第一基站返回失败的上下文信 息响应， 通过所述失败的上下文信息响应中携带的指示告知所述第一基站： 第二基站不支持当前类型的切换。
所述第二基站返回成功的上下文信息响应时， 该方法进一步包括： 所述第一基站确认满足预设的前置条件时， 向所述移动终端返回成功 的测距响应； 所述第一基站确认不满足预设的前置条件时， 向所述移动终 端返回失败的测距响应， 拒绝所述移动终端的切换请求；
所述第二基站返回失败的上下文信息响应时， 该方法进一步包括： 所 述第一基站向所述移动终端返回失败的测距响应， 拒绝所述移动终端的切 换请求。
一种家用基站的切换类型控制系统， 该系统包括： 配置单元， 第一基 站和第二基站， 其中，
所述配置单元， 用于为所述第一基站和第二基站配置切换策略； 所述第一基站， 用于获取所述第二基站的标识， 并依据获取的附近基 站列表确认所述第二基站的类型； 还用于依据所述第二基站的类型和所述 切换策略， 执行切换类型控制； 还用于向所述第二基站提供自身的标识； 所述第二基站， 用于获取所述第一基站的标识， 并依据获取的附近基 站列表确认所述第一基站的类型； 还用于依据所述第一基站的类型和所述 切换策略， 执行切换类型控制。
所述第一基站为目标基站时， 所述第二基站为服务基站； 所述第一基 站为服务基站时， 所述第二基站为目标基站；
所述服务基站为当前为移动终端提供服务的基站； 所述目标基站为移 动终端要切入的基站；
所述第一基站或第二基站的类型包括： 家用基站和宏基站。
该系统进一步包括移动终端；
所述移动终端， 用于依据第一基站和第二基站执行的切换类型控制， 执行从第一基站到第二基站、 或从第二基站到第一基站的切换。
该系统进一步包括网络侧实体， 用于向所述第一基站或第二基站提供 所述附近基站列表；
所述第一基站和第二基站分别包括侦听单元， 用于侦听自身附近的基 站发出的空口广播消息， 获取所述空口广播消息中基站类型的指示信息， 得到附近基站列表。
本发明的切换类型控制方案中， 在切换的准备阶段， 服务基站和目标 基站首选获取对方的标识， 并结合自身存储的附近基站列表来判定对方的 类型； 然后， 依据对方的类型以及预先配置的切换策略， 来执行切换类型 的控制， 如此， 可以实现基于家用基站系统的移动终端切换流程中实现网 络对家用基站所支持的切换类型的控制功能。 附图说明
图 1为包含家用基站的通信网络结构示意图；
图 2为现有技术中基于家用基站系统的移动终端切换流程示意图； 图 3为本发明家用基站的切换类型控制方法流程示意图； 图 4为本发明用基站的切换类型控制方法实施例一的流程示意图； 图 5为本发明用基站的切换类型控制方法实施例二的流程示意图； 图 6为本发明用基站的切换类型控制方法实施例三的流程示意图； 图 7为本发明家用基站的切换类型控制系统的结构示意图。 具体实施方式
下面结合附图和具体实施例对本发明的技术方案进一步详细阐述。 本发明家用基站的切换类型控制方法， 如图 3所示， 包括：
步骤 301 , 为第一基站和第二基站配置切换策略。
步骤 302, 第一基站获取第二基站的标识， 并依据获取的附近基站列表 确认第二基站的类型； 第一基站依据第二基站的类型和切换策略， 执行切 换类型控制。
步骤 303 , 第一基站将自身的标识提供给第二基站， 第二基站依据第一 基站的标识和获取的附近基站列表确认第一基站的类型； 第二基站依据第 一基站的类型和切换策略， 执行切换类型控制。
其中， 第一基站为目标基站时， 第二基站为服务基站； 第一基站为服 务基站时， 第二基站为目标基站；
服务基站为当前为移动终端提供服务的基站； 目标基站为移动终端要 切入的基站。
第一基站或第二基站的类型包括： 家用基站和宏基站。
在移动终端执行切换操作之前， 针对每一个家用基站， 运营商都会为 其定制一组与切换类型控制相关的策略， 简称为切换策略， 较佳地， 可以 用位图的形式表示该策略， 具体为：
根据需要，可以设置位 0x00表示支持 /不支持移动终端从宏基站切换到 家用基站 （此时， 该家用基站作为目标基站）； 设置位 0x01表示支持 /不支 持移动终端从家用基站切换到宏基站 （此时， 该家用基站作为服务基站）； 设置位 0x02表示支持 /不支持移动终端在当前家用基站与另外一个家用基 站之间切换（此时， 当前家用基站即作为服务基站也可以作为目标基站）。
或者， 保留上述位 0x00以及位 0x01的定义， 增加位 0x02、 位 0x03定 义：设置位 0x02表示支持 /不支持移动终端从当前家用基站切换到另外一个 家用基站 （此时， 当前家用基站作为服务基站）； 设置位 0x03表示支持 /不 支持移动终端从另一个家用基站切换到当前家用基站 （此时， 当前家用基 站作为目标基站）。
完成切换策略的定制后， 需要由网络侧实体将该策略发送到家用基站 的切换控制功能中： 较佳地， 在家用基站执行初始化上电入网的过程中， 由配置服务器、 或者策略控制服务器、 或者网管系统（即家用基站管理系 统）、或者自组织网络服务器 ( SON Server, Self Organizing Network Function Server )等网络侧实体将策略发送给家用基站； 当然， 也可以在家用基站接 入网络作为基站工作以后， 再由上述的网络侧实体将策略发送给家用基站。
对于上述的家用基站， 还需要从网络侧实体处获取该家用基站附近的 一个或者多个基站的标识， 如基站标识 （BSID , Base Station Identifier ) 、 网络接入标识（NAI, Network Access Identifier )等。 所谓家用基站附近的 基站是指与该家用基站的覆盖范围重叠， 或者与该家用基站的距离小于一 定阔值， 或者与该家用基站同处于一个区域的其他基站。
网络侧实体可以将该家用基站附近的宏基站或者家用基站以列表的形 式发送给家用基站， 并由家用基站保存。 此时， 该家用基站拥有一个附近 宏基站列表或者一个附近家用基站列表， 列表中保存的是宏基站或者家用 基站的标识；
或者， 网络侧实体用两个列表将该家用基站附近的宏基站和家用基站 发送给当前家用基站， 其中一个列表保存的是该家用基站附近的宏基站的 标识， 另一个列表则保存的是该家用基站附近的其他家用基站的标识； 此 时该家用基站拥有一个附近宏基站列表， 和一个附近家用基站列表， 这两 个列表是逻辑上独立的两个列表；
或者， 网络侧实体可以在向家用基站下发的该家用基站的临近基站列 表中增加相应的标识 （该标识可以根据需要进行设置）用以表明该列表中 哪些临近基站是宏基站， 哪些临近基站是家用基站； 所述临近基站列表可 以是一个邻居 （或邻区）基站列表， 其中包含了该家用基站的附近宏基站 和 /或附近其他家用基站的标识。 可以将临近基站列表中附近宏基站的部分 列表称之为附近宏基站列表； 将临近基站列表中附近家用基站的部分列表 称之为附近家用基站列表。
上述的附近宏基站列表和附近家用基站列表可以统称为该家用基站的 附近基站列表。
网络侧实体可以通过多种方法将上述的附近基站列表发送到家用基 站。 例如， 在家用基站执行初始化上电入网的过程中， 由配置服务器、 或 者策略控制服务器、 或者网管系统（即家用基站管理系统） 、 或者自组织 网络服务器等网络侧实体将上述的附近基站列表发送给该家用基站； 其中， 宏基站由运营商部署， 一般情况下， 家用基站的附近宏基站列表不会发生 变化。
目前， 基站在其发出的空口广播消息 （如邻区广播消息） 中可携带指 示自身类型的信息 （小区类型， Cell Type ) , 利用该信息， 基站可以指明 自身是宏基站或者是家用基站。 此时， 上述家用基站也可以依靠侦听自己 附近基站发出的空口广播消息来获取其周围基站的基站类型。 根据侦听到 的基站类型信息， 也可以获得上述的附近宏基站列表和 /或附近家用基站列 表。
基于上述切换策略的定制， 以及附近基站列表的获取， 特别是附近宏 基站列表的获取， 下面通过具体的实施例来说明本发明家用基站的切换类 型控制方案。
图 4所示为本发明家用基站的切换类型控制方法实施例一的流程示意 图， 包括：
步骤 401 , 移动终端向服务基站发送移动请求。
移动终端已经接入了移动通信网络中， 并准备执行切换操作； 在切换 准备阶段， 移动终端向当前为其服务的服务基站发起切换请求， 该实施例 中切换请求为移动请求， 请求中携带一组移动终端选择的候选目标基站。
一般地， 移动终端可以通过测量周边的无线信号强度以及质量等方式 来确定上述的一组候选目标基站。 这组候选目标基站中可以同时包含一个 或者多个宏基站和 /或家用基站。 较佳地， 将这一组候选目标基站以列表的 形式携带在移动请求中， 该列表中存储的可以是各个候选目标基站的标识 (如 BSID、 NAI等）， 如此服务基站可以获取候选目标基站的标识。
需要指出的是， 可以设置附近基站列表中的标识和候选目标基站中的 标识釆用同一套标识方法， 如都使用 BSID、 或者 NAI。
步骤 402 , 服务基站从候选目标基站列表中获取候选目标基站的标识， 依据服务基站已经拥有的附近基站列表判断候选目标基站的类型， 并依据 切换策略执行切换类型控制。
若该服务基站是一个宏基站， 则不必确认候选目标基站的类型， 也不 需要执行切换类型控制， 默认其支持移动终端执行当前类型的切换， 而直 接执行步骤 403。
若该服务基站是一个家用基站， 且若该家用基站本地只保存了附近宏 基站列表， 则， 该家用基站首先遍历其本地保存的附近宏基站列表， 并判 断候选目标基站的标识是否存在于附近宏基站列表中； 若存在， 则判定该 候选目标基站为宏基站； 反之， 判定该候选目标基站为家用基站。
若该家用基站本地只保存了附近家用基站列表， 则候选目标基站的标 识存在于该列表中时， 判定该候选目标基站为家用基站； 反之为宏基站。 若该家用基站本地除了保存有附近宏基站列表， 还保存有附近家用基 站列表时， 该家用基站依据候选目标基站的标识， 判断该标识是存在于附 近宏基站列表中还是存在于附近家用基站列表中； 若存在于附近宏基站列 表中， 则判定该候选目标基站为宏基站； 若存在于附近家用基站列表中， 则判定该候选目标基站为家用基站。
倘若该标识既不存在于附近宏基站列表， 也不存在于附近家用基站列 表， 则该家用基站可以依据预设的处理方法 （一般由运营商定制） 来判定 该候选目标基站的类型： 如默认其为宏基站或家用基站， 或者在空口上侦 听该标识指代的基站以获取其基站类型， 或者直接返回错误， 结束流程等。
上述家用基站中同时保存有附近宏基站列表和附近家用基站列表时， 这两个列表即可以是逻辑上独立的两个列表， 也可以共同存在于一个附近 基站列表中。
在确认了候选目标基站的类型以后， 服务基站 （家用基站）执行切换 类型控制， 具体为：
服务基站 (家用基站 )根据自身存储的切换策略， 如果策略规定不支 持移动终端从家用基站切换到宏基站， 则根据候选目标基站的类型， 若候 选目标基站是宏基站， 则该服务基站将该候选目标基站从候选目标基站列 表中删除； 若候选目标基站不是宏基站 （即为家用基站） ， 则当前服务基 站支持此种类型的切换。 如果策略规定不支持移动终端从当前家用基站切 换到另一个家用基站， 则根据候选目标基站的类型， 若候选目标基站为家 用基站， 则该服务基站将该候选目标基站从候选目标基站列表中删除； 若 候选目标基站不是家用基站 （即为宏基站） ， 则当前服务基站支持此种类 型的切换。
反之， 如果切换策略规定当前服务基站支持移动终端从服务基站 （家 用基站）切换到候选目标基站（家用基站或者宏基站；)， 且候选目标基站的 类型符合切换策略时， 则当前服务基站支持移动终端执行当前类型的切换。
步骤 403 ,服务基站向候选目标基站发送一个准备切换请求， 该请求中 携带服务基站的标识， 以及移动终端的锚点鉴权器的标识和锚点接入网关 的标识。
一般地， 如果服务基站无法直接将准备切换请求发送到候选目标基站， 那么， 服务基站可以将该准备切换请求先发送到中继接入网关上， 再由该 中继接入网关将准备切换请求转发到候选目标基站上。
步骤 404,候选目标基站从准备切换请求中获取服务基站的标识，依据 该候选目标基站已经拥有的附近基站列表判断服务基站的类型， 并依据切 换策略执行切换类型控制。
若候选目标基站是宏基站， 则可不必判断服务基站的类型， 也不需要 执行切换类型控制， 默认其支持移动终端执行当前类型的切换， 而直接执 行步骤 405; 若候选目标基站是家用基站， 则依照步骤 402中描述的方法， 判断服务基站的类型， 例如： 候选目标基站首先遍历其本地保存的附近宏 基站列表， 并判断服务基站的标识是否存在于附近宏基站列表中； 若存在， 则判定服务基站为宏基站； 反之， 判定服务基站为家用基站。
在确认了服务基站的类型以后， 候选目标基站 （家用基站）执行切换 类型控制， 具体为：
候选目标基站 （家用基站）根据自身存储的切换策略， 如果策略规定 该候选目标基站不支持移动终端从宏基站切换到家用基站上， 则根据服务 基站的类型， 若服务基站是宏基站， 该候选目标基站将据此拒绝上述准备 切换请求， 跳转执行步骤 407, 通过发送失败的准备切换请求响应， 该响应 携带一个指示， 用于告知服务基站该候选目标基站 （家用基站） 不支持此 种类型的切换， 即该候选目标基站拒绝移动终端的切换请求； 若服务基站 不是宏基站， 则当前候选目标基站支持移动终端执行当前类型的切换。 如果策略规定当前候选目标基站 （家用基站） 不支持移动终端从家用 基站切换到家用基站上， 则根据服务基站的类型， 若服务基站为家用基站， 则当前候选目标基站不支持移动终端执行当前类型的切换， 此时， 该候选 目标基站将据此拒绝上述准备切换请求，跳转到步骤 407, 向服务基站返回 失败的准备切换请求响应， 该响应携带一个指示， 用于告知服务基站该候 选目标基站 （家用基站） 不支持此种类型的切换； 若服务基站不是家用基 站， 则当前候选目标基站支持移动终端执行当前类型的切换。
这里， 如果所有的候选目标基站都不支持当前类型的切换， 则在执行 步骤 408 时， 服务基站向移动终端返回失败的移动请求响应， 拒绝移动终 端此次的切换请求； 但是， 只要有一个候选目标基站接受了当前类型的切 换， 服务基站就不会向移动终端返回失败的移动请求响应。
反之， 如果切换策略规定当前候选目标基站支持移动终端从服务基站 (宏基站、 或者家用基站）切换到家用基站， 则当前候选目标基站支持移 动终端执行当前类型的切换。
需要指出的是， 如果候选目标基站为宏基站， 则默认其支持移动终端 执行当前类型的切换。
步骤 405 ,候选目标基站与移动终端的锚点鉴权器交互该移动终端的上 下文信息。
其中， 候选目标基站可以通过准备切换请求中的锚点鉴权器的标识找 到移动终端对应的锚点鉴权器。 该步骤中移动终端的上下文信息的交互为 现有技术， 此处不再赘述。
步骤 406,候选目标基站在自身与移动终端的锚点接入网关之间为该移 动终端进行数据通道预建立。
其中， 候选目标基站可以通过准备切换请求中锚点接入网关的标识找 到对应的锚点接入网关。 数据通道预建立由候选目标基站发起， 该步骤的 实现为现有技术， 此处不再赘述。
步骤 407,候选目标基站向服务基站返回准备切换请求响应， 该响应指 示了该候选目标基站是否接受移动终端的切换请求。
从步骤 404可知， 当候选目标基站（家用基站） 不支持当前类型的切 换时， 就通过失败的准备切换请求响应携带一个指示， 以告知服务基站该 候选目标基站不接受移动终端的切换请求的原因： 不支持当前类型的切换。
候选目标基站不接受移动终端的切换请求时， 还有一种情况： 候选目 标基站 （宏基站或家用基站）在支持当前类型的切换时， 还需要依据预设 的前置条件来判定是否接受移动终端的切换请求， 如： 当前候选目标基站 是否有足够的资源、 和锚点鉴权器交互的移动终端的上下文信息是否有效、 以及上述数据通道预建立是否成功等等。 根据实际的运营策略， 如果当前 候选目标基站只满足本发明的切换类型， 而不满足上述其他条件中的任意 一种， 则当前候选目标基站也不会接受移动终端的切换请求， 此时， 该候 选目标基站通过失败的准备切换请求响应携带一个指示， 用于告知服务基 站当前候选目标基站不接受移动终端的切换请求的原因。
如果所有的候选目标基站都不接受移动终端的切换请求， 则在执行步 骤 408 时， 服务基站向移动终端返回失败的移动请求响应， 拒绝其切换请 求； 但是， 只要有一个候选目标基站接受了移动终端的请求， 则服务基站 就不会向移动终端返回失败的移动请求响应。
只有同时满足本发明的切换类型和上述其他预设的前置条件时， 该候 选目标基站才会接受移动终端的切换请求。 此时， 候选目标基站向服务基 站发送成功的准备切换请求响应。
步骤 408, 服务基站向移动终端返回移动请求响应。
由于服务基站向多个候选目标基站发送了准备切换请求， 此时服务基 站会收到多条准备切换请求响应， 这些响应来自不同的候选目标基站， 其 中包括宏基站和家用基站。
服务基站在搜集到所有候选目标基站的准备切换请求响应以后， 当确 认所有候选目标基站都拒绝移动终端的切换请求时， 服务基站向移动终端 返回失败的移动请求响应。
只要有不少于一个候选目标基站接受了移动终端的切换请求， 服务基 站就会向移动终端返回成功的移动请求响应， 告知移动终端准备执行切换， 其中包含一个或者多个潜在目标基站的标识。
所谓潜在目标基站为经过步骤 407得到的接受移动终端切换请求的候 选目标基站。
较佳地， 可以将潜在目标基站的标识组成一个潜在目标基站列表， 携 带在移动请求响应中； 移动终端根据该列表， 确认自身要切入的目标基站。
步骤 409,服务基站向潜在目标基站发送准备切换确认， 以为执行后续 移动终端从服务基站到潜在目标基站的切换做准备。
图 5 所示为本发明家用基站的切换类型控制方法实施例二的流程示意 图， 包括：
步骤 501 , 服务基站准备执行移动终端的切换操作。
该流程中， 移动终端已经接入服务基站中， 服务基站根据移动终端的 通信状况决策执行切换操作。 服务基站根据自身的负荷情况， 决定将当前 支持其服务的移动终端切换到周边负荷较小的基站上， 由此可见该实施例 中移动终端的切换过程是由服务基站发起的， 而不是由移动终端自身发起 的； 在此过程中， 服务基站选取临近的一组基站作为候选目标基站。 较佳 地， 将候选目标基站的标识组成一个候选目标基站列表存储在本地。 所谓 临近的基站是指与该服务基站的覆盖范围重叠， 或者与该服务基站的距离 小于一定阔值， 或者与该服务基站同处于一个区域的其他基站。 步骤 502至步骤 509的处理同步骤 402至步骤 409, 此处不再赘述。 需要指出的是， 步骤 508中服务基站向移动终端返回的是移动通知。 图 6是本发明家用基站的切换类型控制方法实施例三的流程示意图， 该实施例是不受控制的切换流程， 即指移动终端直接向候选目标基站发送 切换请求， 如图所示， 包括：
步骤 601 , 移动终端向候选目标基站发送测距请求，携带服务基站的标 识。
在该流程中， 移动终端已经接入家用基站系统， 并基于家用基站系统 中当前的服务基站开始执行切换操作； 该家用基站系统中与当前服务基站 的所有临近的基站都可以作为候选目标基站， 移动终端直接向候选目标基 站发送切换请求以发起切换过程， 该实施例中切换请求为测距请求， 以发 起一个不受控制的切换过程。
步骤 602,候选目标基站从测距请求中获取服务基站的标识，依据该候 选目标基站已经拥有的附近基站列表判断服务基站的类型， 并依据切换策 略执行切换类型控制。
若候选目标基站是宏基站， 则不必判断服务基站的类型， 也不需要执 行切换类型控制， 直接执行步骤 603; 若候选目标基站是家用基站， 则判断 服务基站的类型同步骤 404所述， 此处不再赘述。
在确认了服务基站的类型以后， 候选目标基站 （家用基站）执行切换 类型控制， 具体实现同步骤 404, 此处不再赘述。 但是， 与步骤 404不同的 是， 如果判定候选目标基站支持当前类型的切换， 则执行步骤 603 ; 如果判 定候选目标基站不支持当前类型的切换， 则跳转执行步骤 608, 通过向移动 终端发送失败的测距响应， 拒绝移动终端执行当前类型的切换， 即拒绝移 动终端的切换请求。
步骤 603 ,候选目标基站向服务基站发送上下文信息请求， 用以请求该 移动终端的锚点鉴权器的标识、 和锚点接入网关的标识等信息， 同时还携 带该候选目标基站的标识。
步骤 604,服务基站从上下文信息请求中获取候选目标基站的标识，依 据该服务基站已经拥有的附近基站列表判断该候选目标基站的类型， 并依 据切换策略执行切换类型控制。
若服务基站是宏基站， 则不必判断服务基站的类型， 也不需要执行切 换类型控制， 而直接执行步骤 605; 若候选目标基站是家用基站， 则判断服 务基站的类型同步骤 404所述， 此处不再赘述。
在确认了候选目标基站的类型以后， 服务基站 （家用基站）执行切换 类型控制， 具体处理同步骤 402, 此处不再赘述。
需要指出的是， 服务基站不支持移动终端执行当前类型的切换， 则服 务基站向候选目标基站返回失败的上下文信息响应， 通过该响应中携带的 指示告知候选目标基站其不支持此种类型的切换， 然后跳转执行步骤 608 , 候选目标基站向移动终端返回失败的测距响应， 拒绝移动终端的切换请求； 如果服务基站支持移动终端执行当前类型的切换， 则执行步骤 605。
步骤 605 , 服务基站向候选目标基站返回上下文信息响应。
当服务基站支持当前类型的切换时， 向候选目标基站返回成功的上下 文信息响应， 携带锚点鉴权器的标识、 和锚点接入网关的标识， 以供后续 步骤 606和 607执行上下文信息交互、 和数据通道预建立时应用。
步骤 606至步骤 607的处理同步骤 405至步骤 406, 此处不再赘述。 步骤 608, 目标基站发送测距响应消息给终端，接受或者拒绝终端的切 换请求。
候选目标基站发送测距响应给移动终端， 以告知移动终端接受或者拒 绝移动终端的切换请求。
需要指出的是， 候选目标基站拒绝移动终端的切换请求的情况还有一 种： 在候选目标基站和服务基站都支持当前类型的切换时， 并在步骤 607 之后， 候选目标基站还需要判定其是否满足所有预设的前置条件， 如果不 满足其中的任意一条， 则向移动终端返回失败的测距响应， 拒绝移动终端 的切换请求； 如果满足， 则向移动终端返回成功的测距响应， 接受移动终 端的切换请求。
步骤 609, 在候选目标基站接受移动终端的切换请求时， 执行后续移动 终端从服务基站到目标基站的切换操作。
在上述的几个实施例中， 都是由服务基站以及对应的目标基站首先根 据获取的附近宏蜂窝基站列表来判断对方的类型， 再执行切换类型控制的。 在实际应用中， 可能会出现下述情况： 当前服务基站 （家用基站） 只允许 移动终端在其周边的一个或几个特定的家用基站之间切换（如当前服务基 站和这一个或几个特定家用基站同属于一个用户） ， 此时， 可以在当前服 务基站的附近基站列表中， 为上述特定的家用基站标记上宏基站属性， 或 者使用其他预设的标记， 用以提示当前服务基站在执行切换类型控制时， 将上述特定的家用基站作为宏基站来进行处理。
需要指出的是， 本发明所列举的实施例中仅强调了家用基站需要执行 本发明所述的切换类型控制， 而假设宏基站不执行该操作。 在实际的应用 中， 基于运营商的需求， 本发明为家用基站定制的切换策略， 以及家用基 站获取附近基站列表的方法也适用于宏基站。
此时， 运营商可以通过网络侧的配置服务器、 或者策略控制服务器、 或者网管系统、 或者自组织网络服务器等实体为宏基站配置相应的切换策 略， 同样也可以釆用位图表示的方法， 具体的适用于宏基站的切换策略， 如支持 /不支持移动终端从当前宏基站切换到家用基站 （此时， 该宏基站作 为服务基站）； 支持 /不支持移动终端从家用基站切换到当前宏基站（此时， 该宏基站作为目标基站） ； 支持 /不支持移动终端在当前宏基站和其他宏基 站之间进行切换等。
同样地， 宏基站也可以从网络侧实体处， 或者通过侦听附近基站的空 口广播消息来获取本发明上述的附近基站列表。
基于为宏基站定制的切换策略， 以及宏基站获取的附近基站列表， 本 发明的切换类型控制方法也适用于宏基站。
为了实现上述控制方法， 本发明提供了一种家用基站的切换类型控制 系统， 如图 7所示， 包括： 配置单元 10, 第一基站 20和第二基站 30, 其 中，
配置单元 10, 用于为第一基站 20和第二基站 30配置切换策略； 第一基站 20,用于获取第二基站 30的标识， 并依据获取的附近基站列 表确认第二基站 30的类型； 还用于依据第二基站 30的类型和切换策略， 执行切换类型控制； 并向第二基站 30提供自身的标识；
第二基站 30,用于获取第一基站 20的标识， 并依据获取的附近基站列 表确认第一基站 20的类型； 还用于依据第一基站 20的类型和切换策略， 执行切换类型控制。
第一基站 20为目标基站时， 第二基站 30为服务基站； 第一基站 20为 服务基站时， 第二基站 30为目标基站；
服务基站为当前为移动终端提供服务的基站； 目标基站为移动终端要 切入的基站；
第一基站 20或第二基站 30的类型包括： 家用基站和宏基站。
该系统进一步包括移动终端 40
移动终端 40, 用于依据第一基站 20和第二基站 30执行的切换类型控 制，执行从第一基站 20到第二基站 30、 或从第二基站 30到第一基站 20的 切换；
该系统进一步还可以包括网络侧实体 50,用于向第一基站 20或第二基 站 30提供附近基站列表；
第一基站 20和第二基站 30分别可以包括一个侦听单元， 用于侦听自 身附近的基站发出的空口广播消息， 获取所述空口广播消息中基站类型的 指示信息， 得到附近基站列表。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种家用基站的切换类型控制方法， 其特征在于， 为第一基站和第 二基站配置切换策略， 该方法还包括：
所述第一基站获取所述第二基站的标识， 并依据获取的附近基站列表 确认所述第二基站的类型； 所述第一基站依据所述第二基站的类型和所述 切换策略， 执行切换类型控制；
所述第一基站将自身的标识提供给所述第二基站；
所述第二基站依据所述第一基站的标识和获取的附近基站列表确认所 述第一基站的类型； 所述第二基站依据所述第一基站的类型和所述切换策 略， 执行切换类型控制。
2、 根据权利要求 1所述家用基站的切换类型控制方法， 其特征在于， 所述第一基站为目标基站时， 所述第二基站为服务基站； 所述第一基站为 服务基站时， 所述第二基站为目标基站；
所述服务基站为当前为移动终端提供服务的基站； 所述目标基站为移 动终端要切入的基站；
所述第一基站或第二基站的类型包括： 家用基站和宏基站。
3、 根据权利要求 1所述家用基站的切换类型控制方法， 其特征在于， 为所述第一基站和第二基站配置切换策略， 具体为： 为所述第一基站和第 二基站分别配置相应的切换策略， 并由网络侧实体将所述切换策略发送给 所述第一基站或第二基站；
所述网络侧实体包括以下至少之一： 配置服务器、 策略控制服务器、 家用基站管理系统、 自组织网络服务器。
4、 根据权利要求 1所述家用基站的切换类型控制方法， 其特征在于， 所述切换策略为当前基站支持或不支持的切换类型， 包括：
支持或不支持移动终端从家用基站切换到宏基站； 和 /或支持或不支持移动终端从宏基站切换到家用基站；
和 /或支持或不支持移动终端在家用基站之间切换；
和 /或支持或不支持移动终端从当前家用基站切换到另一个家用基站； 和 /或支持或不支持移动终端从另一个家用基站切换到当前家用基站。
5、 根据权利要求 1所述家用基站的切换类型控制方法， 其特征在于， 第一基站确认第二基站的类型， 或者所述第二基站确认第一基站的类型， 具体为：
所述附近基站列表为附近宏基站列表时，
所述第一基站判定所述第二基站的标识存在于附近宏基站列表时， 确 认所述第二基站为宏基站； 反之， 确认所述第二基站为家用基站；
所述第二基站判定所述第一基站的标识存在于附近宏基站列表时， 确 认所述第一基站为宏基站； 反之， 确认所述第一基站为家用基站；
所述附近基站列表为附近家用基站列表时，
所述第一基站判定所述第二基站的标识存在于附近家用基站列表时， 确认所述第二基站为家用基站； 反之， 确认所述第二基站为宏基站；
所述第二基站判定所述第一基站的标识存在于附近家用基站列表时， 确认所述第一基站为家用基站； 反之， 确认所述第一基站为宏基站；
所述附近基站列表为附近宏基站列表和附近家用基站列表时， 所述第一基站判断所述第二基站的标识存在于附近宏基站列表或附近 家用基站列表中， 若存在于附近宏基站列表， 则确认所述第二基站为宏基 站； 若存在于附近家用基站列表， 则确认所述第二基站为家用基站；
所述第二基站判断所述第一基站的标识存在于附近宏基站列表或附近 家用基站列表中， 若存在于附近宏基站列表， 则确认所述第一基站为宏基 站； 若存在于附近家用基站列表， 则确认所述第一基站为家用基站。
6、 根据权利要求 1所述家用基站的切换类型控制方法， 其特征在于， 所述第一基站或第二基站获取附近基站列表， 具体为： 网络侧实体将所述 第一基站或第二基站附近的宏基站、 和 /或家用基站的标识以列表的形式发 送给所述第一基站或第二基站， 得到所述附近宏基站列表和 /或附近家用基 站列表；
或者， 所述网络侧实体在向所述第一基站或第二基站下发的临近基站 列表中， 通过相应的标识来指示所述临近基站列表中的宏基站和 /或家用基 站， 将所述宏基站的部分临近基站列表作为所述附近宏基站列表， 将所述 家用基站的部分临近基站列表作为所述附近家用基站列表；
或者， 所述第一基站或第二基站侦听自身附近的基站发出的空口广播 消息， 获取所述空口广播消息中基站类型的指示信息， 得到附近宏基站列 表和 /或附近家用基站列表。
7、 根据权利要求 1至 6中任一项所述家用基站的切换类型控制方法， 其特征在于，
所述第一基站为服务基站， 第二基站为目标基站时， 所述第一基站获 取第二基站的标识， 具体为：
移动终端发起切换请求时， 向所述第一基站发送移动请求， 所述移动 请求中携带由移动终端确定的所述第二基站的标识， 所述第一基站获取所 述第二基站的标识；
或者， 服务基站发起移动终端的切换请求时， 所述第一基站选择临近 的基站作为所述第二基站， 所述第一基站获取所述第二基站的标识；
所述第一基站为目标基站， 所述第二基站为服务基站时， 所述第一基 站获取第二基站的标识， 具体为：
移动终端发起切换请求时， 向所述第一基站发送测距请求， 所述测距 请求中携带所述第二基站的标识， 所述第一基站获取所述第二基站的标识。
8、 根据权利要求 1至 6中任一项所述家用基站的切换类型控制方法， 其特征在于， 所述第一基站为服务基站， 第二基站为目标基站时， 所述第 一基站执行切换类型控制， 具体为：
所述第一基站依据所述第二基站的类型和所述切换策略， 判定支持当 前类型的切换时， 向所述第二基站发送准备切换请求； 第一基站通过所述 准备切换请求将自身的标识提供给所述第二基站；
判定不支持当前类型的切换时， 所述第一基站将所述第二基站的标识 从自身存储的候选目标基站列表中删除。
9、 根据权利要求 1至 6中任一项所述家用基站的切换类型控制方法， 其特征在于， 所述第一基站为服务基站， 第二基站为目标基站时， 所述第 二基站执行切换类型控制， 具体为：
所述第二基站依据所述第一基站的类型和所述切换策略， 判定支持当 前类型的切换， 并在判定满足预设的前置条件时， 判定接受所述移动终端 的切换请求；
判定不支持当前类型的切换时， 判定拒绝所述移动终端的切换请求。
10、 根据权利要求 9所述家用基站的切换类型控制方法， 其特征在于， 第二基站判定接受所述移动终端的切换请求时， 该方法进一步包括： 向所 述第一基站返回成功的准备切换请求响应；
第二基站判定拒绝所述移动终端的切换请求时， 该方法进一步包括： 向所述第一基站返回失败的准备切换请求响应， 通过所述失败的准备切换 请求响应中携带的指示告知所述第一基站： 第二基站不支持当前类型的切 换。
11、 根据权利要求 1至 6中任一项所述家用基站的切换类型控制方法， 其特征在于， 所述第一基站为目标基站， 第二基站为服务基站时， 所述第 一基站执行切换类型控制， 具体为：
所述第一基站依据所述第二基站的类型和所述切换策略， 判定支持当 前类型的切换时， 向所述第二基站发送上下文信息请求； 第一基站通过所 述上下文信息请求， 将自身的标识提供给所述第二基站；
判定不支持当前类型的切换时， 向所述移动终端发送失败的测距响应， 拒绝移动终端的切换请求。
12、 根据权利要求 1至 6中任一项所述家用基站的切换类型控制方法， 其特征在于， 所述第一基站为目标基站， 第二基站为服务基站时， 所述第 二基站执行切换类型控制， 具体为：
第二基站依据所述第一基站的类型和所述切换策略， 判定支持当前类 型的切换时， 向所述第一基站返回成功的上下文信息响应；
判定不支持当前类型的切换时， 向所述第一基站返回失败的上下文信 息响应， 通过所述失败的上下文信息响应中携带的指示告知所述第一基站： 第二基站不支持当前类型的切换。
13、根据权利要求 12所述家用基站的切换类型控制方法，其特征在于， 所述第二基站返回成功的上下文信息响应时， 该方法进一步包括：
所述第一基站确认满足预设的前置条件时， 向所述移动终端返回成功 的测距响应； 所述第一基站确认不满足预设的前置条件时， 向所述移动终 端返回失败的测距响应， 拒绝所述移动终端的切换请求；
所述第二基站返回失败的上下文信息响应时， 该方法进一步包括： 所 述第一基站向所述移动终端返回失败的测距响应， 拒绝所述移动终端的切 换请求。
14、 一种家用基站的切换类型控制系统， 其特征在于， 该系统包括： 配置单元， 第一基站和第二基站， 其中，
所述配置单元， 用于为所述第一基站和第二基站配置切换策略； 所述第一基站， 用于获取所述第二基站的标识， 并依据获取的附近基 站列表确认所述第二基站的类型； 还用于依据所述第二基站的类型和所述 切换策略， 执行切换类型控制； 还用于向所述第二基站提供自身的标识； 所述第二基站， 用于获取所述第一基站的标识， 并依据获取的附近基 站列表确认所述第一基站的类型； 还用于依据所述第一基站的类型和所述 切换策略， 执行切换类型控制。
15、根据权利要求 14所述家用基站的切换类型控制系统，其特征在于， 所述第一基站为目标基站时， 所述第二基站为服务基站； 所述第一基站为 服务基站时， 所述第二基站为目标基站；
所述服务基站为当前为移动终端提供服务的基站； 所述目标基站为移 动终端要切入的基站；
所述第一基站或第二基站的类型包括： 家用基站和宏基站。
16、根据权利要求 14所述家用基站的切换类型控制系统，其特征在于， 该系统进一步包括移动终端；
所述移动终端， 用于依据第一基站和第二基站执行的切换类型控制， 执行从第一基站到第二基站、 或从第二基站到第一基站的切换。
17、根据权利要求 14所述家用基站的切换类型控制系统，其特征在于， 该系统进一步包括网络侧实体， 用于向所述第一基站或第二基站提供 所述附近基站列表；
所述第一基站和第二基站分别包括侦听单元， 用于侦听自身附近的基 站发出的空口广播消息， 获取所述空口广播消息中基站类型的指示信息， 得到附近基站列表。
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