WO2014029290A1 - 无线网络小区物理标识的分配方法及装置 - Google Patents

无线网络小区物理标识的分配方法及装置 Download PDF

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Publication number
WO2014029290A1
WO2014029290A1 PCT/CN2013/081452 CN2013081452W WO2014029290A1 WO 2014029290 A1 WO2014029290 A1 WO 2014029290A1 CN 2013081452 W CN2013081452 W CN 2013081452W WO 2014029290 A1 WO2014029290 A1 WO 2014029290A1
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base station
pci
cell
neighboring
neighboring base
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PCT/CN2013/081452
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English (en)
French (fr)
Inventor
康剑锋
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中兴通讯股份有限公司
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Publication of WO2014029290A1 publication Critical patent/WO2014029290A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for allocating a physical identifier of a wireless network cell.
  • PCI Cell Physical Identity
  • the present invention is directed to a method and apparatus for allocating a physical identification of a wireless network cell to solve the problem of PCI conflict or confusion in the network.
  • the present invention provides a method for allocating a wireless network cell physical identifier PCI, including: when allocating a PCI to a cell of a base station, counting the number of uses of all PCIs in the neighbor base station search range of the base station;
  • the PCI is allocated to the cell; otherwise, the other cells of the base station are not used, and the predetermined distance condition is met, and the neighboring base station of the base station and the base station The neighboring base stations of the neighboring base stations of the base station have no PCI used. Assigned to the cell.
  • the method further comprises: segmenting the PCI in advance, wherein one segment is written into the predetermined allocation list as an assignable PCI, and the other segment is used as a manually reserved PCI.
  • the method further comprises:
  • a manually reserved PCI is assigned to the cell when one of the following occurs:
  • the PCI in the allocation list is not used by other cells of the base station, but is used by the cell of the neighboring base station of the base station;
  • the PCI in the allocation list is not used by other cells of the base station, and is also not used by the cells of the neighboring base stations of the base station, but is used by the cells of the neighboring base stations of the neighboring base stations of the base station.
  • the neighboring base station search range refers to a preset range for searching the neighboring base stations around the base station, and the setting is to set the neighbor base station search range for each base station separately or set the neighbors for multiple base stations at the same time.
  • Base station search range is to set the neighbor base station search range for each base station separately or set the neighbors for multiple base stations at the same time.
  • the network is divided into multiple areas according to the degree of density of the base station, each area is represented by a square and the area is located through a square two diagonal end points.
  • the latitude and longitude of the base station is located in the square area, and the search range of the neighboring base station is the search radius of the base station in the square area; if the base station of the cell to which the PCI is to be allocated is located outside the square area,
  • the neighbor base station search range is the default search radius of the base station.
  • the satisfying the predetermined distance condition means that the distance between the base station and the neighboring base station is greater than a predetermined multiplexing distance.
  • the present invention also provides a radio network cell physical identifier PCI allocation device, including: a statistics module, configured to: when allocating a PCI to a cell of a base station, counting the number of times of using all PCIs in the neighbor base station search range of the base station ;
  • the allocation module is configured to: judge from the PCI with the least number of uses, if the number of uses of the PCI is 0, allocate the PCI to the cell; otherwise, select another cell of the base station that is not used, and meet the predetermined distance condition and the The neighboring base station of the base station and the neighboring base station of the neighboring base station of the base station are not used by the PCI, and are allocated to the cell.
  • the device further comprises:
  • the pre-allocation module is configured to: segment the PCI in advance, one of which is written as an assignable PCI write scheduled allocation list, and the other is used as a manually reserved PCI.
  • the allocation module is further configured to:
  • a manually reserved PCI is assigned to the cell when one of the following occurs:
  • the PCI in the allocation list is not used by other cells of the base station, but is used by the cell of the neighboring base station of the base station;
  • the PCI in the allocation list is not used by other cells of the base station, and is also not used by the cells of the neighboring base stations of the base station, but is used by the cells of the neighboring base stations of the neighboring base stations of the base station.
  • the neighboring base station search range refers to a preset range for searching the neighboring base stations around the base station, and the setting is to set the neighbor base station search range for each base station separately or set the neighbors for multiple base stations at the same time.
  • Base station search range is to set the neighbor base station search range for each base station separately or set the neighbors for multiple base stations at the same time.
  • FIG. 1 is a schematic flow chart of an embodiment of a method according to the present invention.
  • FIG. 2 is a schematic flow chart of an embodiment of a preferred method in the present invention.
  • FIG. 3 is a schematic diagram of a neighboring base station according to an embodiment of the present invention.
  • Figure 4 is a schematic view showing the structure of an embodiment of the apparatus in the present invention. Preferred embodiment of the invention
  • FIG. 1 is a schematic flowchart of a method according to an embodiment of the present invention, which may specifically include:
  • Step 101 When it is required to allocate a PCI to a cell of the base station, count the number of times of using all the PCIs in the neighbor base station search range of the base station;
  • Step 102 judge from the PCI with the least number of uses, if the number of uses of the PCI is 0, allocate the PCI to the cell; otherwise, select another cell of the base station that is not used, and meet the predetermined distance condition and the neighbor of the base station The base station and the neighboring base stations of the neighboring base stations of the base station are not used by the PCI, and are allocated to the cell.
  • FIG. 2 is a schematic flowchart of a preferred method embodiment of the present invention.
  • the self-configuring network management device needs to segment the PCI in advance, and one segment is allocated as an assignable PCI write. In the list, another segment is used as a manually reserved PCI, and the neighboring base station search range is determined, and the method may specifically include:
  • Step 201 For a certain cell X of the base station X to which the PCI is to be allocated, the self-configured network management device counts the number of times of all PCIs in the allocation list in the neighboring base station search range of the base station X;
  • Step 202 Starting from the PCI with the least number of uses, determining whether the number of uses of the PCI is 0, if yes, go to step 208; if no, go to step 203;
  • Step 203 Perform the following processing on the base station using the PCI in sequence:
  • Step 204 Determine whether the distance between the base station Y and the base station X where the cell X is located is greater than a predetermined multiplexing distance (set according to a specific situation, for example, the degree of density of the base station). If yes, go to step 205; if not, the PCI is unavailable. Go to step 209;
  • Step 205 Determine whether the base station Y is the base station X where the cell X is located. If not, execute step 206; if yes, the PCI is unavailable, go to step 209;
  • Step 206 According to the neighbor base station information of the base station X, determine whether the base station Y is the neighboring base station of the base station X where the cell X is located. If not, go to step 207; if yes, the PCI is unavailable, go to step 209;
  • Step 207 Determine whether the base station Y is the neighboring base station of the neighboring base station of the base station X where the cell X is located. If not, go to step 208; if yes, the PCI is unavailable, go to step 209; Step 208: Determine whether the base station using the PCI has been traversed:
  • the PCI is selected as the PCI of the cell X, and the self-configured network management device displays that the cell uses the PCI and the number of uses of the PCI; otherwise, the next base station that uses the PCI (for example, the base station Z) Starting from step 205 until the PCI is selected for use;
  • Step 209 Determine whether all PCIs in the allocation list have been traversed:
  • the PCI selection fails, and the manually reserved PCI is selected.
  • the self-configured network management device displays that the cell uses the manually reserved PCI. If the traversal is not completed, the next PCI in the allocation list starts from step 202. carried out.
  • the self-configuring network management device searches for neighboring base stations of all base stations according to latitude and longitude, when determining whether it is a base station, it is actually determining whether there are other base stations between the two base stations, that is, whether there are other base stations between the two base stations. Cell blocking of the base station.
  • the base station X is located in the search area, the distance between the base station X and other base stations in the area is calculated, and the shortest distance is a neighbor base station of the base station X.
  • Whether the other base station is a neighboring base station needs to be determined according to the neighboring base station determining method, as shown in FIG. 3 .
  • angle ⁇ is configurable. In fact, it is to judge whether the angle between the straight line ⁇ and ⁇ and the angle between the straight line ⁇ and ⁇ are less than ⁇ . If it is less than ⁇ , then ⁇ is not the neighboring base station of X, otherwise it is the neighboring base station of X.
  • the neighboring base station search range refers to a preset range for searching neighboring base stations around the base station.
  • the neighbor base station search range may be separately set for each base station or set for multiple base stations at the same time.
  • the neighboring base station search range if the neighbor base station search range is set for a plurality of base stations at the same time, the network is divided into a plurality of areas according to the degree of density of the base station when the station is deployed, each area is represented by a square and the area is located through a square The latitude and longitude of the two diagonal endpoints is indicated; if the base station of the cell to which the PCI is to be allocated is located in the square area, the neighboring base station search range is the search radius of the base station in the square area; Located outside the square area, the neighbor base station search range is the default search radius of the base station.
  • the present invention may also be implemented in the process. It is not necessary to set the search range, and all the base stations are set to be in the same neighbor base station search area by default, so that the PCI in the search area of the neighbor base station is not conflicted or confused; or the PCI segmentation is not required, that is, all the PCI is allocated.
  • FIG. 4 is a schematic structural diagram of an apparatus according to an embodiment of the present invention, which may specifically include:
  • the pre-allocation module 40 is configured to pre-stage the PCI, wherein one segment is written into the predetermined allocation list as an assignable PCI, and the other segment is used as a manually reserved PCI.
  • the statistic module 41 is configured to collect, when the PCI of the cell to be used by the base station is allocated, the number of times of using all the PCIs in the neighboring base station search range of the base station;
  • the allocation module 42 is configured to determine from the least used PCI, if the number of uses of the PCI is 0, the PCI is allocated to the cell; otherwise, the other cells of the base station are selected to be unused, and the predetermined distance condition is met and the A PCI that is not used by the neighboring base station of the base station and the neighboring base station of the neighboring base station of the base station is allocated to the cell; and the manually reserved PCI is allocated to the cell when the following occurs:
  • the self-configured network management device searches according to the latitude and longitude When the neighboring base stations of all base stations determine whether they are neighboring base stations, it is actually determining whether there are other base stations between the two base stations, that is, whether there are cell blockings of other base stations between the cells of the two base stations.
  • the base station X is located in the search area, the distance between the base station X and other base stations in the area is calculated, and the shortest distance is a neighboring base station of the station X.
  • the other base station is a neighboring base station needs to be determined according to the neighboring base station determination method, as shown in FIG. 3 .
  • the angle ⁇ is configurable. In fact, it is to judge the angle between the straight line ⁇ and ⁇ , and whether the angle between the straight line ⁇ and ⁇ is less than ⁇ . If it is less than ⁇ , then ⁇ is not the neighboring base station of X, otherwise it is the neighboring base station of X.
  • the neighboring base station search range refers to a preset range for searching neighboring base stations around the base station.
  • the neighbor base station search range may be separately set for each base station or set for multiple base stations at the same time.
  • the neighboring base station search range if the neighbor base station search range is set for a plurality of base stations at the same time, the network is divided into a plurality of areas according to the degree of density of the base station when the station is deployed, each area is represented by a square and the area is located through a square
  • the embodiments of the present invention provide a method and a device for allocating a physical identifier of a wireless network cell, that is, ensuring that the physical identifier of the cell is allocated to the base station quickly and effectively, and at the same time making up for the shortage of physical identification resources, especially for large
  • the allocation of the physical identification of the cell at the time of opening the station is more significant.
  • the embodiment of the invention ensures that the physical identifier of the cell is allocated to the base station quickly and effectively, and the shortage of the physical identification resource is compensated.

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

一种无线网络小区物理标识PCI的分配方法及装置,其中方法包括:当需要给基站的小区分配PCI时,在该基站的邻基站搜索范围内统计所有PCI的使用次数;从使用次数最少的PCI开始进行判断,如果该PCI的使用次数为0,则将该PCI分配给该小区;否则选择该基站其他小区没有使用,且满足预定距离条件并且该基站的邻基站以及该基站的邻基站的邻基站均没有使用的PCI,分配给该小区。上述方案保证了快速有效的为基站分配到小区物理标志,同时弥补了物理标识资源的不足。

Description

无线网络小区物理标识的分配方法及装置
技术领域
本发明涉及通讯技术领域, 尤其涉及一种无线网络小区物理标识的分配 方法及装置。
背景技术
PCI (小区物理标识)是无线小区的一个重要配置参数, 它复合一个正 交序列和伪随机序列号而得到, 共有 504个物理标识。
由于 PCI数量有限,现实组网过程中不可避免的要对这些 PCI进行复用, 这就可能产生一定的冲突或混淆。 当网络中存在 PCI冲突时, 小区间的信号 会相互干扰, 导致基站和终端对 信号解调的成功率下降, 影响业务的质量。 更甚者会导致终端无法接入, 引起 用户的投诉。 当网络中存在 PCI混淆时, 会影响切换的成功率, 导致部分用户 切换失败, 影响严重的 PCI 混淆, 同 样会导致用户的大量投诉。
目前, 对于如何给小区分配 PCI才能避免网络中出现 PCI冲突或混淆, 尚未有完善的解决方案。 发明内容
鉴于上述的分析, 本发明旨在提供一种无线网络小区物理标识的分配方 法及装置, 用以解决网络中出现 PCI冲突或混淆的问题。
本发明的目的主要是通过以下技术方案实现的:
本发明提供了一种无线网络小区物理标识 PCI的分配方法, 包括: 当需要给基站的小区分配 PCI时, 在该基站的邻基站搜索范围内统计所 有 PCI的使用次数;
从使用次数最少的 PCI开始进行判断, 如果该 PCI的使用次数为 0, 则 将该 PCI分配给该小区; 否则选择该基站其他小区没有使用, 且满足预定距 离条件并且该基站的邻基站以及该基站的邻基站的邻基站均没有使用的 PCI, 分配给该小区。
优选地, 该方法还包括: 预先对 PCI进行分段, 其中一段作为可分配的 PCI写入预定分配列表中, 另一段作为人工预留的 PCI。
优选地, 该方法还包括:
当发生以下情况之一时, 将人工预留的 PCI分配给该小区:
所述分配列表中的所有 PCI已被该基站的其他小区使用;
所述分配列表中尚有 PCI没有被该基站的其他小区使用, 但是被该基站 的邻基站的小区所使用;
所述分配列表中尚有 PCI没有被该基站的其他小区使用, 并且也没有被 该基站的邻基站的小区使用,但是被该基站的邻基站的邻基站的小区所使用。
优选地, 所述邻基站搜索范围是指预先设定的对该基站周边的邻基站进 行搜索的范围, 其设置时单独为每个基站设定邻基站搜索范围或者同时为多 个基站设定邻基站搜索范围。
优选地, 如果同时为多个基站设定邻基站搜索范围, 则根据基站的疏密 程度把网络划分为多个区域, 每个区域用一个方形表示并且该区域位置通过 方形两个对角线端点的经纬度表示; 如果待分配 PCI的小区所在基站位于方 形区域内, 则所述邻基站搜索范围即为该方形区域内该基站的搜索半径; 如 果待分配 PCI的小区所在基站位于方形区域外, 则所述邻基站搜索范围即为 该基站缺省的搜索半径。
优选地, 所述满足预定距离条件是指该基站与邻基站之间的距离大于预 定复用距离。
本发明还提供了一种无线网络小区物理标识 PCI的分配装置, 包括: 统计模块, 设置为: 在需要给基站的小区分配 PCI时, 在该基站的邻基 站搜索范围内统计所有 PCI的使用次数;
分配模块, 设置为: 从使用次数最少的 PCI开始进行判断, 如果该 PCI 的使用次数为 0, 则将该 PCI分配给该小区; 否则选择该基站其他小区没有 使用, 且满足预定距离条件并且该基站的邻基站以及该基站的邻基站的邻基 站均没有使用的 PCI, 分配给该小区。 优选地, 该装置还包括:
预分配模块,设置为:预先对 PCI进行分段,其中一段作为可分配的 PCI 写入预定分配列表中, 另一段作为人工预留的 PCI。
优选地, 所述分配模块还设置为:
当发生以下情况之一时, 将人工预留的 PCI分配给该小区:
所述分配列表中的所有 PCI已被该基站的其他小区使用;
所述分配列表中尚有 PCI没有被该基站的其他小区使用, 但是被该基站 的邻基站的小区所使用;
所述分配列表中尚有 PCI没有被该基站的其他小区使用, 并且也没有被 该基站的邻基站的小区使用,但是被该基站的邻基站的邻基站的小区所使用。
优选地, 所述邻基站搜索范围是指预先设定的对该基站周边的邻基站进 行搜索的范围, 其设置时单独为每个基站设定邻基站搜索范围或者同时为多 个基站设定邻基站搜索范围。
本发明的其他特征和优点将在随后的说明书中阐述, 并且, 部分的从说 明书中变得显而易见, 或者通过实施本发明而了解。 本发明的目的和其他优 点可通过在所写的说明书、 权利要求书、 以及附图中所特别指出的结构来实 现和获得。 附图概述
图 1为本发明中, 方法实施例的流程示意图;
图 2为本发明中, 优选方法实施例的流程示意图;
图 3为本发明实施例中, 邻基站的示意图;
图 4为本发明中, 装置实施例的结构示意图。 本发明的较佳实施方式
下面结合附图来具体描述本发明的优选实施例, 其中, 附图构成本申请 一部分, 并与本发明的实施例一起用于阐释本发明的原理。 首先, 结合附图 1到 3对本发明实施例所述方法进行详细说明。
如图 1所示, 图 1为本发明实施例所述方法的流程示意图, 具体可以包 括:
步骤 101 : 当需要给基站的小区分配 PCI时, 在该基站的邻基站搜索范 围内统计所有 PCI的使用次数;
步骤 102: 从使用次数最少的 PCI开始进行判断, 如果该 PCI的使用次 数为 0, 则将该 PCI分配给该小区; 否则选择该基站其他小区没有使用, 且 满足预定距离条件并且该基站的邻基站以及该基站的邻基站的邻基站均没有 使用的 PCI, 分配给该小区。
如图 2所示,图 2为本发明优选的方法实施例的流程示意图,在进行 PCI 的分配前, 自配置网管装置需要预先对 PCI进行分段, 其中一段作为可分配 的 PCI写入预定分配列表中, 另一段作为人工预留的 PCI, 同时确定邻基站 搜索范围, 则该方法具体可以包括:
步骤 201 : 针对待分配 PCI的基站 X的某小区 X, 自配置网管装置统计 基站 X的邻基站搜索范围内, 预定分配列表中所有 PCI的使用次数;
步骤 202: 从使用次数最少的 PCI开始, 判断该 PCI的使用次数是否为 0, 如果是, 转到步骤 208; 如果否, 执行步骤 203;
步骤 203: 依次对使用该 PCI的基站进行如下处理:
步骤 204: 判断基站 Y与小区 X所在基站 X的距离是否大于预定复用距 离 (根据具体情况设定, 例如基站的疏密程度) , 如果是, 执行步骤 205; 如果否, 该 PCI不可用, 转到步骤 209;
步骤 205: 判断基站 Y是否为小区 X所在的基站 X, 如果不是, 执行步 骤 206; 如果是, 该 PCI不可用, 转到步骤 209;
步骤 206: 根据基站 X的邻基站信息, 判断该基站 Y是否为小区 X所在 基站 X的邻基站, 如果不是, 执行步骤 207; 如果是, 该 PCI不可用, 执行 步骤 209;
步骤 207: 判断基站 Y是否为小区 X所在基站 X的邻基站的邻基站, 如 果不是, 执行步骤 208; 如果是, 该 PCI不可用, 转到步骤 209; 步骤 208: 判断使用该 PCI的基站是否已遍历完:
如果完成, 说明该 PCI可用, 选择该 PCI作为小区 X的 PCI, 自配置网 管装置显示该小区使用的是该 PCI以及该 PCI的使用次数; 否则, 对下一个 使用该 PCI的基站(例如基站 Z )从第步骤 205开始执行, 直到选择到可以 使用的 PCI;
步骤 209: 判断分配列表中的所有 PCI是否已遍历完:
如果遍历完, 说明本次 PCI选择失败, 选用人工预留的 PCI, 自配置网 管装置显示小区使用的是人工预留的 PCI; 如果没有遍历完, 对分配列表中 的下一个 PCI从步骤 202开始执行。
其中, 自配置网管装置根据经纬度搜索所有基站的邻基站时, 其在判断 是否是部基站时实际上就是判断两个基站之间是否有其它基站, 也就是两个 基站的小区之间是否有其它基站的小区阻隔。 当基站 X位于搜索区域内时, 计算基站 X和区域内其他基站之间的距离,距离最短的就是基站 X的一个邻 基站。
其他基站是否是邻基站需要根据邻基站判定方法确定,具体如图 3所示。 从距离 X次远的站 Y开始, 只要有基站位置在基站 X与基站 Y之间的菱形 区域内, 即认为两个基站之间有其它基站, 这两个基站就不是邻基站。 其中 角度 α是可以配置的。 实际上就是判断直线 ΧΖ、 ΧΥ之间的夹角, 以及直线 ΥΖ、 ΥΧ之间的夹角是否都小于 α。 如果小于 α,那么 Υ就不是 X的邻基站, 否则就是 X的邻基站。
邻基站搜索范围是指预先设定的对该基站周边的邻基站进行搜索的范围, 在确定邻基站搜索范围时, 可以单独为每个基站设定邻基站搜索范围或者同 时为多个基站设定邻基站搜索范围; 如果同时为多个基站设定邻基站搜索范 围, 则根据基站的布站时的疏密程度把网络划分为多个区域, 每个区域用一 个方形表示并且该区域位置通过方形两个对角线端点的经纬度表示; 如果待 分配 PCI的小区所在基站位于方形区域内, 则所述邻基站搜索范围即为该方 形区域内该基站的搜索半径; 如果待分配 PCI的小区所在基站位于方形区域 外, 则所述邻基站搜索范围即为该基站缺省的搜索半径。
以上为本发明优选的方法实施例, 实际上, 本发明在实现过程中, 也可 以不用设置搜索范围, 设定所有的基站都默认在同一个邻基站搜索区域内, 这样可以保证该邻基站搜索区域内的 PCI不冲突或混淆; 也可以不用对 PCI 分段, 即用所有的 PCI进行分配。
接下来结合附图 4对本发明实施例所述装置进行详细说明。
如图 4所示, 图 4为本发明实施例所述装置的结构示意图, 具体可以包 括:
预分配模块 40 , 用于预先对 PCI进行分段, 其中一段作为可分配的 PCI 写入预定分配列表中, 另一段作为人工预留的 PCI。
统计模块 41 , 用于在需要给基站的小区分配 PCI时, 在该基站的邻基站 搜索范围内统计所有 PCI的使用次数;
分配模块 42 , 用于从使用次数最少的 PCI开始进行判断, 如果该 PCI 的使用次数为 0 , 则将该 PCI分配给该小区; 否则选择该基站其他小区没有 使用, 且满足预定距离条件并且该基站的邻基站以及该基站的邻基站的邻基 站均没有使用的 PCI, 分配给该小区; 对于发生以下情况, 则将人工预留的 PCI分配给该小区:
分配列表中的所有 PCI已被该基站的其他小区使用;
分配列表中尚有 PCI没有被该基站的其他小区使用, 但是被该基站的邻 基站的小区所使用;
分配列表中尚有 PCI没有被该基站的其他小区使用, 并且也没有被该基 站的邻基站的小区使用, 但是被该基站的邻基站的邻基站的小区所使用; 自配置网管装置根据经纬度搜索所有基站的邻基站时, 其在判断是否是 邻基站时实际上就是判断两个基站之间是否有其它基站, 也就是两个基站的 小区之间是否有其它基站的小区阻隔。 当基站 X位于搜索区域内时, 计算基 站 X和区域内其他基站之间的距离, 距离最短的就 ^^站 X的一个邻基站。
其他基站是否是邻基站需要根据邻基站判定方法确定,具体如图 3所示。 从距离 X次远的站 Y开始, 只要有基站位置在基站 X与基站 Y之间的菱形 区域内, 即认为两个基站之间有其它基站, 这两个基站就不是邻基站。 其中 角度 α是可以配置的。 实际上就是判断直线 ΧΖ、 ΧΥ之间的夹角, 以及直线 ΥΖ、 ΥΧ之间的夹角是否都小于 α。 如果小于 α,那么 Υ就不是 X的邻基站, 否则就是 X的邻基站。
邻基站搜索范围是指预先设定的对该基站周边的邻基站进行搜索的范 围,在确定邻基站搜索范围时,可以单独为每个基站设定邻基站搜索范围或 者同时为多个基站设定邻基站搜索范围;如果同时为多个基站设定邻基站搜 索范围,则根据基站的布站时的疏密程度把网络划分为多个区域,每个区域 用一个方形表示并且该区域位置通过方形两个对角线端点的经纬度表示;如 果待分配 PCI 的小区所在基站位于方形区域内, 则所述邻基站搜索范围即 为该方形区域内该基站的搜索半径; 如果待分配 PCI 的小区所在基站位于 方形区域外, 则所述邻基站搜索范围即为该基站缺省的搜索半径。
综上所述, 本发明实施例提供了一种无线网络小区物理标识的分配方法 及装置, 即保证了快速有效的为基站分配到小区物理标志, 同时弥补了物理 标识资源的不足, 尤其对大规模开站时的小区物理标识的分配, 效果更为显 著。
以上所述, 仅为本发明较佳的具体实施方式, 但本发明的保护范围并不 局限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可 轻易想到的变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明 的保护范围应该以权利要求书的保护范围为准。
工业实用性 本发明实施例有益效果如下:
本发明实施例保证了快速有效的为基站分配到小区物理标志, 同时弥补 了物理标识资源的不足。

Claims

权 利 要 求 书
1、 一种无线网络小区物理标识 PCI的分配方法, 包括:
当需要给基站的小区分配 PCI时, 在该基站的邻基站搜索范围内统计所 有 PCI的使用次数;
从使用次数最少的 PCI开始进行判断, 如果该 PCI的使用次数为 0, 则 将该 PCI分配给该小区; 否则选择该基站其他小区没有使用, 且满足预定距 离条件并且该基站的邻基站以及该基站的邻基站的邻基站均没有使用的 PCI, 分配给该小区。
2、 根据权利要求 1所述的方法, 还包括: 预先对 PCI进行分段, 其中 一段作为可分配的 PCI写入预定分配列表中, 另一段作为人工预留的 PCI。
3、 根据权利要求 2所述的方法, 还包括:
当发生以下情况之一时, 将人工预留的 PCI分配给该小区:
所述分配列表中的所有 PCI已被该基站的其他小区使用;
所述分配列表中尚有 PCI没有被该基站的其他小区使用, 但是被该基站 的邻基站的小区所使用;
所述分配列表中尚有 PCI没有被该基站的其他小区使用, 并且也没有被 该基站的邻基站的小区使用,但是被该基站的邻基站的邻基站的小区所使用。
4、根据权利要求 1所述的方法, 其中, 所述邻基站搜索范围是指预先设 定的对该基站周边的邻基站进行搜索的范围,其设置时单独为每个基站设定 邻基站搜索范围或者同时为多个基站设定邻基站搜索范围。
5、根据权利要求 4所述的方法, 其中, 如果同时为多个基站设定邻基站 搜索范围,则根据基站的疏密程度把网络划分为多个区域,每个区域用一个 方形表示并且该区域位置通过方形两个对角线端点的经纬度表示;如果待分 配 PCI 的小区所在基站位于方形区域内, 则所述邻基站搜索范围即为该方 形区域内该基站的搜索半径; 如果待分配 PCI 的小区所在基站位于方形区 域外, 则所述邻基站搜索范围即为该基站缺省的搜索半径。
6、根据权利要求 1所述的方法, 其中, 所述满足预定距离条件是指该基 站与邻基站之间的距离大于预定复用距离。
7、 一种无线网络小区物理标识 PCI的分配装置, 包括:
统计模块, 设置为: 在需要给基站的小区分配 PCI时, 在该基站的邻基 站搜索范围内统计所有 PCI的使用次数;
分配模块, 设置为: 从使用次数最少的 PCI开始进行判断, 如果该 PCI 的使用次数为 0, 则将该 PCI分配给该小区; 否则选择该基站其他小区没有 使用, 且满足预定距离条件并且该基站的邻基站以及该基站的邻基站的邻基 站均没有使用的 PCI, 分配给该小区。
8、 根据权利要求 7所述的分配装置, 还包括:
预分配模块,设置为:预先对 PCI进行分段,其中一段作为可分配的 PCI 写入预定分配列表中, 另一段作为人工预留的 PCI。
9、 根据权利要求 8所述的方法, 其中, 所述分配模块还设置为: 当发生以下情况之一时, 将人工预留的 PCI分配给该小区:
所述分配列表中的所有 PCI已被该基站的其他小区使用;
所述分配列表中尚有 PCI没有被该基站的其他小区使用, 但是被该基站 的邻基站的小区所使用;
所述分配列表中尚有 PCI没有被该基站的其他小区使用, 并且也没有被 该基站的邻基站的小区使用,但是被该基站的邻基站的邻基站的小区所使用。
10、 根据权利要求 7所述的装置, 其中, 所述邻基站搜索范围是指预先 设定的对该基站周边的邻基站进行搜索的范围, 其设置时单独为每个基站设 定邻基站搜索范围或者同时为多个基站设定邻基站搜索范围。
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