WO2016141587A1 - 一种小区切换方法及装置 - Google Patents

一种小区切换方法及装置 Download PDF

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Publication number
WO2016141587A1
WO2016141587A1 PCT/CN2015/074100 CN2015074100W WO2016141587A1 WO 2016141587 A1 WO2016141587 A1 WO 2016141587A1 CN 2015074100 W CN2015074100 W CN 2015074100W WO 2016141587 A1 WO2016141587 A1 WO 2016141587A1
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Prior art keywords
cell
pci
target cell
target
type
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PCT/CN2015/074100
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English (en)
French (fr)
Inventor
陈斌
王琰
张霄龙
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华为技术有限公司
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Priority to PCT/CN2015/074100 priority Critical patent/WO2016141587A1/zh
Priority to CN201580036862.2A priority patent/CN106537982B/zh
Publication of WO2016141587A1 publication Critical patent/WO2016141587A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a cell handover method and apparatus.
  • Micro-base stations (Pico) are widely used in indoor network coverage scenarios to meet the growing demand for indoor network coverage capacity due to their low power and easy deployment.
  • a cell covered by a micro base station is referred to as a micro base station cell.
  • the same PCI in the PCI range may be used by multiple micro base station cells because the number of micro base station cells exceeds the specified physical cell identifier (PCI) range.
  • PCI physical cell identifier
  • the micro base station cell group includes a micro base station cell A and a micro base station cell B.
  • the micro base station cell A and the micro base station cell B included in the macro can multiplex the PCI in the PCI range.
  • the same PCI may be multiplexed by multiple micro base station cells, that is, the PCI configured by the micro base station cell conflicts, which may cause the UE to perform cell handover failure. problem.
  • the embodiment of the present invention provides a cell handover method and apparatus, to avoid a problem that a UE performs cell handover failure due to a PCI collision of a micro base station cell configuration.
  • a cell handover method includes:
  • the source cell receives the physical cell identifier PCI of the target cell reported by the user equipment UE;
  • the source cell determines a cell type of the target cell
  • the source cell determines that the cell type of the target cell is a micro base station cell, acquiring a global cell identifier CGI of the target cell;
  • the source cell uniquely identifies the target cell according to the CGI and instructs the UE to handover to the target cell.
  • the source cell determines a cell type of the target cell, including:
  • the source cell determines, according to the relationship between the cell type and the PCI range corresponding to the cell type, the cell type corresponding to the PCI range in which the PCI is reported by the UE as the cell type of the target cell.
  • the method before the source cell receives the physical cell identifier PCI of the target cell that is reported by the user equipment, the method further includes:
  • the source cell acquires a relationship between a cell type and a PCI range corresponding to the cell type
  • the relationship between the cell type and the PCI range corresponding to the cell type is configured based on the cell type of the cell and the PCI allocated for the cell.
  • the source cell receives the physical cell identifier PCI of the target cell that is reported by the user equipment UE, including:
  • the source cell receives the measurement report reported by the UE, and the measurement report includes the PCI of the target cell.
  • the source cell acquires a global cell identifier CGI of the target cell, including:
  • the source cell instructs the UE to report the CGI of the target cell
  • the source cell receives the CGI of the target cell reported by the UE.
  • the source cell is a macro base station cell, or a micro base station cell, or a pico base station Femto cell.
  • the source cell first determines the cell type of the target cell according to the PCI of the target cell reported by the UE, and after determining that the cell type of the target cell is a micro base station cell, according to the global cell identifier CGI of the target cell reported by the UE, The target cell is uniquely identified and the UE is instructed to switch to the target cell.
  • the cell handover method provided by the first aspect, in a scenario in which a plurality of micro base station cells are configured with a specified PCI range, if the target cell to which the UE is handed over is a micro base station cell, the same PCI may be used by multiple micro base stations. The cell is multiplexed, and the target cell that the UE is handed over cannot be identified by the PCI, that is, the UE performs cell handover failure due to the PCI collision of the micro base station cell configuration.
  • a cell switching apparatus provided by the present invention includes:
  • An acquiring unit configured to receive a physical cell identifier PCI of a target cell reported by the user equipment UE;
  • a processing unit configured to determine, according to the PCI received by the acquiring unit, a cell type of the target cell
  • the acquiring unit is further configured to: when the processing unit determines that the cell type of the target cell is a micro base station cell, acquire a global cell identifier CGI of the target cell;
  • the processing unit is further configured to uniquely identify the target cell according to the CGI acquired by the acquiring unit, and instruct the UE to switch to the target cell.
  • the processing unit determines the cell type of the target cell, specifically:
  • the processing unit determines, according to the relationship between the cell type and the PCI range corresponding to the cell type, the cell type corresponding to the PCI range in which the PCI received by the acquiring unit is located as the cell type of the target cell.
  • the acquiring unit is further configured to: before receiving the physical cell identifier PCI of the target cell reported by the user equipment UE:
  • the obtaining unit acquires a relationship between a cell type and a PCI range corresponding to the cell type
  • the relationship between the cell type and the PCI range corresponding to the cell type is configured based on the cell type of the cell and the PCI allocated for the cell.
  • the acquiring unit when the acquiring unit receives the physical cell identifier PCI of the target cell reported by the user equipment UE, the acquiring unit is specifically configured to:
  • the acquiring unit receives the measurement report reported by the UE, and the measurement report includes the PCI of the target cell.
  • the acquiring unit when acquiring the global cell identifier CGI of the target cell, is specifically configured to:
  • the acquiring unit instructs the UE to report the CGI of the target cell
  • the acquiring unit receives the CGI of the target cell reported by the UE.
  • the device is used for the source cell, the source cell is the macro base station cell, or the micro Base station cell, or pico base station Femto cell.
  • the processing unit determines the cell type of the target cell according to the PCI of the target cell reported by the UE received by the acquiring unit, and the processing unit determines that the cell type of the target cell is a micro base station cell. Then, according to the global cell identifier CGI of the target cell acquired by the acquiring unit, the target cell is uniquely identified, and the UE is instructed to switch to the target cell.
  • the cell switching apparatus provided by the second aspect, in a scenario in which a plurality of micro base station cells are configured with a specified PCI range, if the target cell to which the UE is handed over is a micro base station cell, the same PCI may be used by multiple micro base stations. The cell is multiplexed, and the target cell that the UE is handed over cannot be identified by the PCI, that is, the UE performs cell handover failure due to the PCI collision of the micro base station cell configuration.
  • FIG. 1 is a schematic diagram of a configuration relationship between a cell of a micro base station and a PCI range
  • FIG. 2 is a schematic flowchart of a cell handover method according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a cell handover method according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present invention.
  • micro base station cell when the UE is handed over from the source cell to the micro base station cell (target cell), since the same PCI may be multiplexed by multiple micro base station cells, if the source If the cell already has the same neighboring cell as the PCI of the target cell, the source cell cannot add the target cell as the neighboring cell.
  • the PCI configuration conflict problem of the micro base station cell will cause the UE to perform the cell handover failure.
  • the source cell first determines the cell type of the target cell according to the PCI of the target cell reported by the UE, and after determining that the target cell is a micro base station cell, according to the global cell of the target cell.
  • the Cell Global ID (CGI) uniquely identifies the target cell, and the source cell can add the target cell as the neighboring cell, and instructs the UE to switch to the target cell, thereby avoiding the PCI configuration conflict of the above-mentioned micro base station cell in the prior art.
  • the source cell cannot identify the UE that performs the cell handover failure caused by the target cell.
  • the source cell refers to the cell before the UE handover
  • the target cell refers to the cell after the UE is switched.
  • an embodiment of the present invention provides a cell handover method, including:
  • the source cell receives the physical cell identifier PCI of the target cell reported by the user equipment UE.
  • the source cell determines a cell type of the target cell.
  • the source cell uniquely identifies the target cell according to the CGI, and instructs the UE to switch to the target cell.
  • the method before the S201 source cell receives the physical cell identifier PCI of the target cell reported by the user equipment UE, the method further includes:
  • the source cell acquires a relationship between a cell type and a PCI range corresponding to the cell type.
  • the source cell pre-stores the relationship between the cell type and the PCI range corresponding to the cell type.
  • the relationship between the PCI range corresponding to the cell type and the cell type includes at least a correspondence between the micro base station cell (the cell type is a micro base station cell) and its corresponding PCI range.
  • the cell type may further include a macro base station cell, a pico base station Femto cell, and the like. Therefore, the relationship between the PCI type corresponding to the cell type and the cell type may further include: the macro base station cell and its corresponding PCI. Correspondence between ranges, and/or correspondence between pico base station cells and their corresponding PCI ranges.
  • the relationship between the PCI range corresponding to the cell type and the cell type is configured based on the cell type of the cell and the PCI range allocated for the cell during network planning. It should be noted that the relationship between the PCI range corresponding to the cell type and the cell type may also be configured based on experience. The configuration of the relationship between the PCI range corresponding to the cell type and the cell type is not limited to the method provided in this embodiment. .
  • the source cell in S202 determines, according to the relationship between the cell type and the PCI range corresponding to the cell type, the cell type corresponding to the PCI range in which the PCI is reported by the UE is the cell type of the target cell.
  • the source cell may determine the cell type of the target cell by using other methods, and is not limited to the method provided in this embodiment.
  • the source cell in S201 receives the physical cell identifier PCI of the target cell reported by the user equipment UE, and the source cell may receive the measurement report reported by the UE, and the measurement report includes the PCI of the target cell to receive the physical cell identifier of the target cell.
  • PCI Physical cell identifier
  • the source cell determines that the cell type of the target cell is a micro base station cell by searching for a relationship between the cell type and the PCI range corresponding to the cell type according to the PCI of the target cell reported by the UE.
  • the method for the source cell to receive the measurement report reported by the UE includes:
  • the source cell sends a report report request message to the UE
  • the source cell receives the measurement report reported by the UE, and the measurement report includes the PCI of the target cell.
  • the source cell of the target cell is determined by the S202 source cell.
  • the source cell indicates that the UE reports the CGI of the target cell, and the source cell receives the CGI of the target cell reported by the UE.
  • the source cell is configured to uniquely identify the target cell according to the CGI of the target cell reported by the UE, and then the source cell adds the target cell as a neighboring cell, and instructs the UE to switch to the target cell.
  • the global cell identifier CGI is used to identify an area covered by a cell (including a base station or a sector cell), and the CGI is identified by a Location Area Identification (LAI) and a cell.
  • the identification number (Cell) is composed of a Cell Identification Decoder (CID).
  • the LAI includes a Mobile Country Code (MCC), a Mobile Network Code (MNC), and a Location Area Code (LAC), that is, a CGI structure. For MCC+MNC+LAC+CID.
  • the UE sends the CGI of the target cell to the source cell in the non-connected state, and the UE reports the CGI of the target cell to the source cell in the state of connecting the source cell, causing the UE to disconnect from the source cell. Therefore, the UE is used in this embodiment.
  • Reporting the PCI of the target cell to the source cell the source cell uses the PCI, and the relationship between the cell type and the PCI range corresponding to the cell type to determine the cell type of the target cell, and further determines whether the UE needs to report the CGI of the target cell, that is, When the source cell determines that the cell type of the target cell is a micro base station cell, the UE is required to report the CGI of the target cell to uniquely identify the target cell by using the CGI.
  • the source cell is a macro base station cell, or a micro base station cell, or a pico base station Femto cell. It should be noted that the cell type of the source cell is not limited to the foregoing cell types provided in this embodiment.
  • the source cell sends a report report request message to the UE.
  • the UE reports a measurement report to the source cell, where the measurement report includes the PCI of the target cell.
  • the source cell determines, according to the relationship between the cell type and the PCI range corresponding to the cell type, that the cell type corresponding to the PCI range in which the PCI is reported by the UE is a micro base station cell.
  • the source cell instructs the UE to report the CGI of the target cell.
  • the UE reports the CGI of the target cell to the source cell.
  • the source cell uniquely identifies the target cell according to the CGI of the target cell reported by the UE.
  • the source cell instructs the UE to switch to the target cell.
  • the UE switches from the source cell to the target cell.
  • the cell switching method shown in FIG. 3 can be used.
  • the UE is switched from the source cell to the target cell.
  • the source cell first determines the cell type of the target cell according to the PCI of the target cell reported by the UE, and after determining that the cell type of the target cell is a micro base station cell, according to the global cell identifier CGI of the target cell reported by the UE, The target cell is uniquely identified and the UE is instructed to switch to the target cell.
  • the cell handover method provided in the first embodiment, in a scenario in which a plurality of micro base station cells are configured with a specified PCI range, if the target cell to which the UE is handed over is a micro base station cell, the same PCI may be used by multiple micro base stations. The cell is multiplexed, and the target cell that the UE is handed over cannot be identified by the PCI, that is, the UE performs cell handover failure due to the PCI collision of the micro base station cell configuration.
  • an embodiment of the present invention provides a cell switching apparatus, including:
  • the obtaining unit 401 is configured to receive a physical cell identifier PCI of the target cell reported by the user equipment UE;
  • the processing unit 402 is configured to determine, according to the PCI received by the obtaining unit 401, a cell type of the target cell;
  • the obtaining unit 401 is further configured to: when the processing unit 402 determines that the cell type of the target cell is a micro base station cell, acquire a global cell identifier CGI of the target cell;
  • the processing unit 402 is further configured to uniquely identify the target cell according to the CGI acquired by the obtaining unit 401, and instruct the UE to switch to the target cell.
  • the acquiring unit 401 before receiving the physical cell identifier PCI of the target cell reported by the user equipment UE, the acquiring unit 401 is further configured to:
  • the obtaining unit 401 acquires a relationship between the cell type and the PCI range corresponding to the cell type.
  • the relationship between the PCI range corresponding to the cell type and the cell type includes at least a correspondence between the micro base station cell (the cell type is a micro base station cell) and its corresponding PCI range.
  • the cell type may further include a macro base station cell, a pico base station Femto cell, and the like. Therefore, the relationship between the PCI range corresponding to the cell type and the cell type may further include: a correspondence between the macro base station cell and its corresponding PCI range, and / or, the correspondence between the pico base station cell and its corresponding PCI range relationship.
  • the relationship between the PCI range corresponding to the cell type and the cell type is configured based on the cell type of the cell and the PCI range allocated for the cell during network planning. It should be noted that the relationship between the PCI range corresponding to the cell type and the cell type may also be configured based on experience. The configuration of the relationship between the PCI range corresponding to the cell type and the cell type is not limited to the method provided in this embodiment. .
  • the processing unit 402 determines the cell type of the target cell
  • the cell type corresponding to the PCI range in which the PCI is received by the obtaining unit 401 is determined as the target cell according to the relationship between the cell type and the PCI range corresponding to the cell type. Cell type.
  • the acquiring unit 401 when receiving the physical cell identifier PCI of the target cell reported by the user equipment, may receive the measurement report reported by the UE, and the measurement report includes the PCI of the target cell to receive the physical cell identifier PCI of the target cell.
  • the processing unit 402 determines that the cell type of the target cell is a micro base station cell by searching the relationship between the cell type and the PCI range corresponding to the cell type according to the PCI of the target cell reported by the UE.
  • the acquiring unit 401 when the obtaining unit 401 receives the measurement report reported by the UE, the acquiring unit 401 is specifically configured to:
  • the obtaining unit 401 sends a report measurement report request message to the UE;
  • the obtaining unit 401 receives the measurement report reported by the UE, where the measurement report includes the PCI of the target cell.
  • the processing unit 402 determines that the cell type of the target cell is a micro base station cell
  • the acquiring unit 401 instructs the UE to report the CGI of the target cell
  • the acquiring unit 401 receives the CGI of the target cell reported by the UE.
  • the processing unit 402 uniquely identifies the target cell according to the CGI of the target cell reported by the UE, and further adds the target cell as a neighboring cell, and instructs the UE to switch to the target cell.
  • the global cell identifier CGI is used to identify an area covered by a cell (including a base station or a sector cell), and the CGI is composed of a location area identifier LAI and a cell identification code CID, where the LAI includes a mobile country code MCC, a mobile network code MNC, and a location area.
  • the number LAC, that is, the structure of the CGI is MCC+MNC+LAC+CID.
  • the acquiring unit 401 acquires the PCI of the target cell, and the processing unit 402 uses the PCI, and the cell type and the cell.
  • the relationship between the PCI ranges corresponding to the type, determining the cell type of the target cell, and further determining whether the UE needs to report the CGI of the target cell, that is, after the processing unit 402 determines that the cell type of the target cell is a micro base station cell, the acquiring unit 401 requests the UE.
  • the CGI of the target cell is reported, and the processing unit 402 uses the CGI to uniquely identify the target cell.
  • a cell switching apparatus provided in this embodiment is used for a source cell, where the source cell is a macro base station cell, or a micro base station cell, or a pico base station Femto cell. It should be noted that the cell type of the source cell is not limited to the foregoing cell types provided in this embodiment.
  • the processing unit 402 determines the cell type of the target cell according to the PCI of the target cell reported by the UE received by the acquiring unit 401, and the processing unit 402 determines the cell of the target cell according to the acquiring unit 401 and the processing unit 402. After the type is a micro base station cell, the target cell is uniquely identified according to the global cell identifier CGI of the target cell acquired by the acquiring unit 401, and the UE is instructed to switch to the target cell.
  • the same PCI may be used by multiple micro base stations.
  • the cell is multiplexed, and the target cell that the UE is handed over cannot be identified by the PCI, that is, the UE performs cell handover failure due to the PCI collision of the micro base station cell configuration.
  • an embodiment of the present invention provides a cell switching apparatus, including:
  • the transceiver 501 is configured to receive a physical cell identifier PCI of the target cell reported by the user equipment UE.
  • the processor 502 is configured to determine, according to the PCI received by the transceiver 501, a cell type of the target cell.
  • the transceiver 501 is further configured to: when the processor 502 determines that the cell type of the target cell is a micro base station cell, acquire a global cell identifier CGI of the target cell;
  • the processor 502 is further configured to uniquely identify the target cell according to the CGI acquired by the transceiver 501, and instruct the UE to switch to the target cell.
  • the processor 502 when determining the cell type of the target cell, is specifically configured to:
  • the processor 502 determines, according to the relationship between the cell type and the PCI range corresponding to the cell type, the cell type corresponding to the PCI range in which the PCI received by the transceiver 501 is located as the cell type of the target cell.
  • the transceiver 501 before receiving the physical cell identifier PCI of the target cell reported by the user equipment UE, the transceiver 501 is further configured to:
  • the transceiver 501 acquires a relationship between a cell type and a PCI range corresponding to the cell type;
  • the relationship between the cell type and the PCI range corresponding to the cell type is configured based on the cell type of the cell and the PCI allocated for the cell.
  • the transceiver 501 when receiving the physical cell identifier PCI of the target cell reported by the user equipment UE, the transceiver 501 is specifically configured to:
  • the transceiver 501 receives the measurement report reported by the UE, and the measurement report includes the PCI of the target cell.
  • the transceiver 501 when acquiring the global cell identifier CGI of the target cell, the transceiver 501 is specifically configured to:
  • the transceiver 501 instructs the UE to report the CGI of the target cell.
  • the transceiver 501 receives the CGI of the target cell reported by the UE.
  • a cell switching apparatus provided in this embodiment is used for a source cell, where the source cell is a macro base station cell, or a micro base station cell, or a pico base station Femto cell.
  • the transceiver 501 and the processor 502 in particular, the processor 502 first determines the cell type of the target cell according to the PCI of the target cell reported by the UE received by the transceiver 501, and the processor 502 determines the cell of the target cell. After the type is a micro base station cell, the target cell is uniquely identified according to the global cell identifier CGI of the target cell acquired by the transceiver 501, and the UE is instructed to switch to the target cell.
  • the cell switching apparatus provided in the third embodiment, it is possible to avoid that in a scenario where a plurality of micro base station cells are configured with a specified PCI range, if the target cell that the UE switches is a micro base station cell, the same PCI may be used by multiple micro base stations.
  • the cell is multiplexed, and the target cell that the UE is handed over cannot be identified by the PCI, that is, the UE performs cell handover failure due to the PCI collision of the micro base station cell configuration.
  • embodiments of the present invention may be provided as a method, system, or Computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明提供了一种小区切换方法及装置，以避免由于微基站小区配置的物理小区标识PCI冲突导致的用户设备UE执行小区切换失败的问题。本发明方法包括：源小区接收用户设备UE上报的目标小区的物理小区标识PCI；源小区确定目标小区的小区类型；当源小区确定目标小区的小区类型为微基站小区时，获取目标小区的全球小区识别码CGI；源小区根据CGI唯一识别目标小区，并指示UE切换至目标小区。

Description

一种小区切换方法及装置 技术领域
本发明涉及无线通信领域，尤其涉及一种小区切换方法及装置。
背景技术
微基站(Pico)凭借着其功率小、易部署等特点，被广泛用于室内网络覆盖场景中，来满足日益增长的室内网络覆盖容量需求。
微基站覆盖下的小区被称为微基站小区。在部署了多个微基站小区的场景中，由于微基站小区的数量超过指定的物理小区标识(Physical Cell Identifier，PCI)的范围，因此该PCI范围内的同一个PCI可能被多个微基站小区复用。用户设备(User Equipment，UE)从源小区切换至微基站小区(目标小区)时，若源小区已经存在与目标小区的PCI相同的相邻小区，则源小区无法添加目标小区作为相邻小区，这种PCI冲突问题将会导致UE执行小区切换失败。
例如，如图1所示，微基站小区组中包含微基站小区A和微基站小区B，微基站小区组配置的PCI范围包括PCI＝1、PCI＝2和PCI＝3，即微基站小区组中包含的微基站小区A和微基站小区B可以复用该PCI范围内的PCI。UE从宏基站小区移动到与该宏基站小区相邻的微基站小区A时，假设该宏基站小区已经存在相邻的微基站小区B，微基站小区B的PCI＝1，此时UE向宏基站小区上报微基站小区A的PCI＝1，宏基站小区无法添加微基站小区A作为相邻小区，UE无法切换至微基站小区A。
综上，在多个微基站小区配置指定的PCI范围的场景中，由于同一个PCI可能被多个微基站小区复用，即微基站小区配置的PCI发生冲突，可能导致UE执行小区切换失败的问题。
发明内容
本发明实施例提供了一种小区切换方法及装置，以避免由于微基站小区配置的PCI冲突导致的UE执行小区切换失败的问题。
第一方面，本发明提供的一种小区切换方法，包括：
源小区接收用户设备UE上报的目标小区的物理小区标识PCI；
源小区确定目标小区的小区类型；
当源小区确定目标小区的小区类型为微基站小区时，获取目标小区的全球小区识别码CGI；
源小区根据CGI唯一识别目标小区，并指示UE切换至目标小区。
结合第一方面，在第一种可能的实现方式中，源小区确定目标小区的小区类型，包括：
源小区根据小区类型与小区类型对应的PCI范围之间的关系，将UE上报的PCI所在的PCI范围对应的小区类型确定为目标小区的小区类型。
结合第一方面，在第二种可能的实现方式中，源小区接收用户设备UE上报的目标小区的物理小区标识PCI之前，该方法还包括：
源小区获取小区类型与小区类型对应的PCI范围之间的关系；
小区类型与小区类型对应的PCI范围之间的关系是基于小区的小区类型以及为小区分配的PCI配置的。
结合第一方面，在第三种可能的实现方式中，源小区接收用户设备UE上报的目标小区的物理小区标识PCI，包括：
源小区接收UE上报的测量报告，测量报告包括目标小区的PCI。
结合第一方面，在第四种可能的实现方式中，源小区获取目标小区的全球小区识别码CGI，包括：
源小区指示UE上报目标小区的CGI；
源小区接收UE上报的目标小区的CGI。
结合第一方面、第一方面的第一种至第四种可能的实现方式，在第一方 面的第五种可能的实现方式中，源小区为宏基站小区，或者微基站小区，或者微微基站Femto小区。
第一方面中，源小区先根据UE上报的目标小区的PCI确定该目标小区的小区类型，在确定目标小区的小区类型为微基站小区后，根据UE上报的目标小区的全球小区识别码CGI，唯一识别目标小区，并指示UE切换至目标小区。通过第一方面提供的一种小区切换方法，可以避免在多个微基站小区配置指定的PCI范围的场景中，若UE切换的目标小区为微基站小区，由于同一个PCI可能被多个微基站小区复用，无法通过PCI识别UE切换的目标小区，即由于微基站小区配置的PCI冲突导致的UE执行小区切换失败。
第二方面，本发明提供的一种小区切换装置，包括：
获取单元，用于接收用户设备UE上报的目标小区的物理小区标识PCI；
处理单元，用于根据获取单元接收的PCI，确定目标小区的小区类型；
获取单元，还用于当处理单元确定目标小区的小区类型为微基站小区时，获取目标小区的全球小区识别码CGI；
处理单元，还用于根据获取单元获取的CGI唯一识别目标小区，并指示UE切换至目标小区。
结合第二方面，在第一种可能的实现方式中，处理单元确定目标小区的小区类型时，具体用于：
处理单元根据小区类型与小区类型对应的PCI范围之间的关系，将获取单元接收的PCI所在的PCI范围对应的小区类型确定为目标小区的小区类型。
结合第二方面，在第二种可能的实现方式中，获取单元在接收用户设备UE上报的目标小区的物理小区标识PCI之前，还用于：
获取单元获取小区类型与小区类型对应的PCI范围之间的关系；
小区类型与小区类型对应的PCI范围之间的关系是基于小区的小区类型以及为小区分配的PCI配置的。
结合第二方面，在第三种可能的实现方式中，获取单元在接收用户设备UE上报的目标小区的物理小区标识PCI时，具体用于：
获取单元接收UE上报的测量报告，测量报告包括目标小区的PCI。
结合第二方面，在第四种可能的实现方式中，获取单元在获取目标小区的全球小区识别码CGI时，具体用于：
获取单元指示UE上报目标小区的CGI；
获取单元接收UE上报的目标小区的CGI。
结合第二方面、第二方面的第一种至第四种可能的实现方式，在第二方面的第五种可能的实现方式中，装置用于源小区，源小区为宏基站小区，或者微基站小区，或者微微基站Femto小区。
第二方面中，通过获取单元和处理单元，具体的，处理单元先根据获取单元接收的UE上报的目标小区的PCI确定目标小区的小区类型，处理单元在确定目标小区的小区类型为微基站小区后，根据获取单元获取的目标小区的全球小区识别码CGI，唯一识别目标小区，并指示UE切换至目标小区。通过第二方面提供的一种小区切换装置，可以避免在多个微基站小区配置指定的PCI范围的场景中，若UE切换的目标小区为微基站小区，由于同一个PCI可能被多个微基站小区复用，无法通过PCI识别UE切换的目标小区，即由于微基站小区配置的PCI冲突导致的UE执行小区切换失败。
附图说明
图1为一种微基站小区与PCI范围的配置关系示意图；
图2为本发明实施例提供的一种小区切换方法流程示意图；
图3为本发明实施例提供的一种小区切换方法流程示意图；
图4为本发明实施例提供的一种小区切换装置结构示意图；
图5为本发明实施例提供的一种小区切换装置结构示意图。
具体实施方式
在多个微基站小区配置指定的PCI范围的场景中，当UE从源小区切换至微基站小区(目标小区)时，由于同一个PCI可能被多个微基站小区复用，若源 小区已经存在与目标小区的PCI相同的相邻小区，则源小区无法添加目标小区作为相邻小区，这种微基站小区的PCI配置冲突问题将会导致UE执行小区切换失败。
本发明实施例提供的一种小区切换方法及装置中，源小区先根据UE上报的目标小区的PCI确定该目标小区的小区类型，在确定目标小区为微基站小区后，根据目标小区的全球小区识别码(Cell Global ID，CGI)唯一识别该目标小区，此时源小区便可以添加目标小区作为相邻小区，并指示UE切换至目标小区，避免现有技术中上述微基站小区的PCI配置冲突，源小区无法识别目标小区导致的UE执行小区切换失败。
本发明实施例中源小区是指UE切换前的小区，目标小区是指UE切换后的小区。
本发明实施例的序号仅代表实施例的顺序，并不代表实施例的优劣。
实施例一
如图2所示，本发明实施例提供了一种小区切换方法，包括：
S201、源小区接收用户设备UE上报的目标小区的物理小区标识PCI；
S202、源小区确定目标小区的小区类型；
S203、当源小区确定目标小区的小区类型为微基站小区时，获取目标小区的全球小区识别码CGI；
S204、源小区根据CGI唯一识别目标小区，并指示UE切换至目标小区。
本实施例中，在S201源小区接收用户设备UE上报的目标小区的物理小区标识PCI之前，该方法还包括：
源小区获取小区类型与小区类型对应的PCI范围之间的关系。
即源小区预先保存小区类型与小区类型对应的PCI范围之间的关系。
小区类型与小区类型对应的PCI范围之间的关系中至少包括：微基站小区(小区类型是微基站小区)与其对应的PCI范围之间的对应关系。小区类型还可以包括宏基站小区、微微基站Femto小区等，因此，小区类型与小区类型对应的PCI范围之间的关系中还可以包括：宏基站小区与其对应的PCI 范围之间的对应关系，和/或，微微基站小区与其对应的PCI范围之间的对应关系。
本实施例中，小区类型与小区类型对应的PCI范围之间的关系是基于小区的小区类型以及网络规划时为该小区分配的PCI范围配置的。需要说明的是，小区类型与小区类型对应的PCI范围之间的关系还可以基于经验进行配置，小区类型与小区类型对应的PCI范围之间的关系的配置并不局限于本实施例提供的方法。
本实施例中，S202中源小区根据小区类型与小区类型对应的PCI范围之间的关系，将UE上报的PCI所在的PCI范围对应的小区类型确定为目标小区的小区类型。
需要说明的是，本实施例中源小区还可以通过其他方法确定目标小区的小区类型，并不局限于本实施例中提供的方法。
本实施例中，S201中源小区接收用户设备UE上报的目标小区的物理小区标识PCI，源小区可以通过接收UE上报的测量报告，测量报告包括目标小区的PCI，来接收目标小区的物理小区标识PCI。使得源小区根据UE上报的目标小区的PCI，通过查找小区类型与小区类型对应的PCI范围之间的关系，确定目标小区的小区类型为微基站小区。
可选的，源小区接收UE上报的测量报告的方法包括：
源小区向UE发送上报测量报告请求消息；
源小区接收UE上报的测量报告，测量报告包括目标小区的PCI。
本实施例中，通过S202源小区确定目标小区的小区类型，源小区在确定的小区类型为微基站小区时，源小区指示UE上报目标小区的CGI，源小区接收UE上报的目标小区的CGI。使得源小区根据UE上报的目标小区的CGI唯一识别目标小区，进而源小区添加该目标小区作为相邻小区，并指示UE切换至目标小区。
其中，全球小区识别码CGI用于识别小区(包括基站或扇形小区)所覆盖的区域，CGI由位置区域标识(Location Area Identification，LAI)和小区 标识码(Cell Identification Decoder，CID)组成，LAI包括移动国家码(Mobile Country Code，MCC)、移动网络代码(Mobile Network Code，MNC)和位置区域号码(Location Area Code，LAC)，即CGI的结构为MCC+MNC+LAC+CID。
由于UE向源小区上报目标小区的CGI需要在非连接状态，UE在连接源小区的状态下向源小区上报目标小区的CGI会导致UE与源小区断开连接，因此，本实施例中通过UE向源小区上报目标小区的PCI，源小区利用该PCI，以及小区类型与小区类型对应的PCI范围之间的关系，确定目标小区的小区类型，进一步判断UE是否有必要上报目标小区的CGI，即源小区当确定目标小区的小区类型为微基站小区时，要求UE上报目标小区的CGI，来通过该CGI唯一识别目标小区。
本实施例中，源小区为宏基站小区，或者微基站小区，或者微微基站Femto小区。需要说明的是，源小区的小区类型并不局限于本实施例提供的上述几种小区类型。
下面通过源小区与UE的交互过程，详细说明当UE从源小区移动到目标小区后，本发明实施例提供的一种小区切换过程，如图3所示，具体步骤如下：
S301、源小区向UE发送上报测量报告请求消息；
S302、UE向源小区上报测量报告，测量报告包括目标小区的PCI；
S303、源小区根据小区类型与小区类型对应的PCI范围之间的关系，确定UE上报的PCI所在的PCI范围对应的小区类型为微基站小区；
S304、源小区指示UE上报目标小区的CGI；
S305、UE向源小区上报目标小区的CGI；
S306、源小区根据UE上报的目标小区的CGI，唯一识别目标小区；
S307、源小区指示UE切换至目标小区；
S308、UE从源小区切换至目标小区。
当UE从源小区移动到目标小区后，通过图3所示的小区切换方法，即可 实现UE从源小区切换至目标小区。
实施例一中，源小区先根据UE上报的目标小区的PCI确定该目标小区的小区类型，在确定目标小区的小区类型为微基站小区后，根据UE上报的目标小区的全球小区识别码CGI，唯一识别目标小区，并指示UE切换至目标小区。通过实施例一提供的一种小区切换方法，可以避免在多个微基站小区配置指定的PCI范围的场景中，若UE切换的目标小区为微基站小区，由于同一个PCI可能被多个微基站小区复用，无法通过PCI识别UE切换的目标小区，即由于微基站小区配置的PCI冲突导致的UE执行小区切换失败。
实施例二
与实施例一对应的，如图4所示，本发明实施例提供了一种小区切换装置，包括：
获取单元401，用于接收用户设备UE上报的目标小区的物理小区标识PCI；
处理单元402，用于根据获取单元401接收的PCI，确定目标小区的小区类型；
获取单元401，还用于当处理单元402确定目标小区的小区类型为微基站小区时，获取目标小区的全球小区识别码CGI；
处理单元402，还用于根据获取单元401获取的CGI唯一识别目标小区，并指示UE切换至目标小区。
本实施例中，获取单元401在接收用户设备UE上报的目标小区的物理小区标识PCI之前，还用于：
获取单元401获取小区类型与小区类型对应的PCI范围之间的关系。
小区类型与小区类型对应的PCI范围之间的关系中至少包括：微基站小区(小区类型是微基站小区)与其对应的PCI范围之间的对应关系。小区类型还可以包括宏基站小区、微微基站Femto小区等，因此，小区类型与小区类型对应的PCI范围之间的关系中还可以包括：宏基站小区与其对应的PCI范围之间的对应关系，和/或，微微基站小区与其对应的PCI范围之间的对应 关系。
本实施例中，小区类型与小区类型对应的PCI范围之间的关系是基于小区的小区类型以及网络规划时为该小区分配的PCI范围配置的。需要说明的是，小区类型与小区类型对应的PCI范围之间的关系还可以基于经验进行配置，小区类型与小区类型对应的PCI范围之间的关系的配置并不局限于本实施例提供的方法。
本实施例中，处理单元402确定目标小区的小区类型时，根据小区类型与小区类型对应的PCI范围之间的关系，将获取单元401接收的PCI所在的PCI范围对应的小区类型确定为目标小区的小区类型。
本实施例中，获取单元401接收用户设备UE上报的目标小区的物理小区标识PCI时，可以通过接收UE上报的测量报告，测量报告包括目标小区的PCI，来接收目标小区的物理小区标识PCI。使得处理单元402根据UE上报的目标小区的PCI，通过查找小区类型与小区类型对应的PCI范围之间的关系，确定目标小区的小区类型为微基站小区。
可选的，获取单元401接收UE上报的测量报告时，具体用于：
获取单元401向UE发送上报测量报告请求消息；
获取单元401接收UE上报的测量报告，测量报告包括目标小区的PCI。
本实施例中，在处理单元402确定目标小区的小区类型为微基站小区后，获取单元401指示UE上报目标小区的CGI，获取单元401接收UE上报的目标小区的CGI。使得处理单元402根据UE上报的目标小区的CGI唯一识别目标小区，进而源小区添加该目标小区作为相邻小区，并指示UE切换至目标小区。
其中，全球小区识别码CGI用于识别小区(包括基站或扇形小区)所覆盖的区域，CGI由位置区域标识LAI和小区标识码CID组成，LAI包括移动国家码MCC、移动网络代码MNC和位置区域号码LAC，即CGI的结构为MCC+MNC+LAC+CID。
由于UE向源小区上报目标小区的CGI需要在非连接状态，UE在连接源 小区的状态下向源小区上报目标小区的CGI会导致UE与源小区断开连接，因此，本实施例中通过获取单元401获取目标小区的PCI，处理单元402利用该PCI，以及小区类型与小区类型对应的PCI范围之间的关系，确定目标小区的小区类型，进一步判断UE是否有必要上报目标小区的CGI，即处理单元402确定目标小区的小区类型为微基站小区后，获取单元401要求UE上报目标小区的CGI，进而处理单元402利用该CGI唯一识别目标小区。
本实施例中提供的一种小区切换装置用于源小区，该源小区为宏基站小区，或者微基站小区，或者微微基站Femto小区。需要说明的是，源小区的小区类型并不局限于本实施例提供的上述几种小区类型。
实施例二中，通过获取单元401和处理单元402，具体的，处理单元402先根据获取单元401接收的UE上报的目标小区的PCI确定目标小区的小区类型，处理单元402在确定目标小区的小区类型为微基站小区后，根据获取单元401获取的目标小区的全球小区识别码CGI，唯一识别目标小区，并指示UE切换至目标小区。通过实施例二提供的一种小区切换装置，可以避免在多个微基站小区配置指定的PCI范围的场景中，若UE切换的目标小区为微基站小区，由于同一个PCI可能被多个微基站小区复用，无法通过PCI识别UE切换的目标小区，即由于微基站小区配置的PCI冲突导致的UE执行小区切换失败。
实施例三
与实施例一对应的，如图5所示，本发明实施例提供了一种小区切换装置，包括：
收发器501，用于接收用户设备UE上报的目标小区的物理小区标识PCI；
处理器502，用于根据收发器501接收的PCI，确定目标小区的小区类型；
收发器501，还用于当处理器502确定目标小区的小区类型为微基站小区时，获取目标小区的全球小区识别码CGI；
处理器502，还用于根据收发器501获取的CGI唯一识别目标小区，并指示UE切换至目标小区。
本实施例中，处理器502在确定目标小区的小区类型时，具体用于：
处理器502根据小区类型与小区类型对应的PCI范围之间的关系，将收发器501接收的PCI所在的PCI范围对应的小区类型确定为目标小区的小区类型。
本实施例中，收发器501在接收用户设备UE上报的目标小区的物理小区标识PCI之前，还用于：
收发器501获取小区类型与小区类型对应的PCI范围之间的关系；
小区类型与小区类型对应的PCI范围之间的关系是基于小区的小区类型以及为小区分配的PCI配置的。
本实施例中，收发器501在接收用户设备UE上报的目标小区的物理小区标识PCI时，具体用于：
收发器501接收UE上报的测量报告，测量报告包括目标小区的PCI。
本实施例中，收发器501在获取目标小区的全球小区识别码CGI时，具体用于：
收发器501指示UE上报目标小区的CGI；
收发器501接收UE上报的目标小区的CGI。
本实施例中提供的一种小区切换装置用于源小区，该源小区为宏基站小区，或者微基站小区，或者微微基站Femto小区。
实施例三中，通过收发器501和处理器502，具体的，处理器502先根据收发器501接收的UE上报的目标小区的PCI确定目标小区的小区类型，处理器502在确定目标小区的小区类型为微基站小区后，根据收发器501获取的目标小区的全球小区识别码CGI，唯一识别目标小区，并指示UE切换至目标小区。通过实施例三提供的一种小区切换装置，可以避免在多个微基站小区配置指定的PCI范围的场景中，若UE切换的目标小区为微基站小区，由于同一个PCI可能被多个微基站小区复用，无法通过PCI识别UE切换的目标小区，即由于微基站小区配置的PCI冲突导致的UE执行小区切换失败。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或 计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些 改动和变型在内。

Claims (12)

  1. 一种小区切换方法，其特征在于，包括：
    源小区接收用户设备UE上报的目标小区的物理小区标识PCI；
    所述源小区确定所述目标小区的小区类型；
    当所述源小区确定所述目标小区的小区类型为微基站小区时，获取所述目标小区的全球小区识别码CGI；
    所述源小区根据所述CGI唯一识别所述目标小区，并指示所述UE切换至所述目标小区。
  2. 如权利要求1所述的方法，其特征在于，所述源小区确定所述目标小区的小区类型，包括：
    所述源小区根据小区类型与所述小区类型对应的PCI范围之间的关系，将所述UE上报的PCI所在的PCI范围对应的小区类型确定为所述目标小区的小区类型。
  3. 如权利要求1所述的方法，其特征在于，所述源小区接收用户设备UE上报的目标小区的物理小区标识PCI之前，该方法还包括：
    所述源小区获取小区类型与所述小区类型对应的PCI范围之间的关系；
    所述小区类型与所述小区类型对应的PCI范围之间的关系是基于小区的小区类型以及为所述小区分配的PCI配置的。
  4. 如权利要求1所述的方法，其特征在于，所述源小区接收用户设备UE上报的目标小区的物理小区标识PCI，包括：
    所述源小区接收所述UE上报的测量报告，所述测量报告包括所述目标小区的PCI。
  5. 如权利要求1所述的方法，其特征在于，所述源小区获取所述目标小区的全球小区识别码CGI，包括：
    所述源小区指示所述UE上报所述目标小区的CGI；
    所述源小区接收所述UE上报的所述目标小区的CGI。
  6. 如权利要求1至5任一所述的方法，其特征在于，所述源小区为宏基站小区，或者微基站小区，或者微微基站Femto小区。
  7. 一种小区切换装置，其特征在于，包括：
    获取单元，用于接收用户设备UE上报的目标小区的物理小区标识PCI；
    处理单元，用于根据所述获取单元接收的所述PCI，确定所述目标小区的小区类型；
    所述获取单元，还用于当所述处理单元确定所述目标小区的小区类型为微基站小区时，获取所述目标小区的全球小区识别码CGI；
    所述处理单元，还用于根据所述获取单元获取的所述CGI唯一识别所述目标小区，并指示所述UE切换至所述目标小区。
  8. 如权利要求7所述的装置，其特征在于，所述处理单元确定所述目标小区的小区类型时，具体用于：
    所述处理单元根据小区类型与所述小区类型对应的PCI范围之间的关系，将所述获取单元接收的所述PCI所在的PCI范围对应的小区类型确定为所述目标小区的小区类型。
  9. 如权利要求7所述的装置，其特征在于，所述获取单元在接收用户设备UE上报的目标小区的物理小区标识PCI之前，还用于：
    所述获取单元获取小区类型与所述小区类型对应的PCI范围之间的关系；
    所述小区类型与所述小区类型对应的PCI范围之间的关系是基于小区的小区类型以及为所述小区分配的PCI配置的。
  10. 如权利要求7所述的装置，其特征在于，所述获取单元在接收用户设备UE上报的目标小区的物理小区标识PCI时，具体用于：
    所述获取单元接收所述UE上报的测量报告，所述测量报告包括所述目标小区的PCI。
  11. 如权利要求7所述的装置，其特征在于，所述获取单元在获取所述目标小区的全球小区识别码CGI时，具体用于：
    所述获取单元指示所述UE上报所述目标小区的CGI；
    所述获取单元接收所述UE上报的所述目标小区的CGI。
  12. 如权利要求7至10任一所述的装置，其特征在于，所述装置用于源小区，所述源小区为宏基站小区，或者微基站小区，或者微微基站Femto小区。
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