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    • 2. 发明授权
    • Method for mapping a coverage area
    • 映射覆盖区域的方法
    • US08229483B2
    • 2012-07-24
    • US12440325
    • 2006-09-06
    • Stefan Engström
    • Stefan Engström
    • H04W16/32
    • H04W16/18H04W16/20H04W16/22
    • A method for calculating path loss PL at a point P in a coverage area CA of an antenna at a cell site. The method comprises the steps: transmitting a signal from the antenna, the antenna having an effective antenna gain Gant, and measuring a received signal strength indicator RSSI of the transmitted signal by a receiving antenna at the point P. The method further comprises the steps: determining a dominant indirect radiation path between the antenna and the receiving antenna to establish the effective antenna gain Gant from the antenna in a direction of the dominant indirect radiation path, and calculating path loss PL at the point P using the established effective antenna gain Gant and measured received signal strength indicator RSSI. A method for mapping a coverage area, a method for simulating changes in a communication network and a system for cell planning.
    • 一种用于在小区站点的天线的覆盖区域CA中的点P处计算路径损耗PL的方法。 该方法包括以下步骤:从天线发送信号,天线具有有效的天线增益Gant,并且通过接收天线在点P测量发射信号的接收信号强度指示符RSSI。该方法还包括以下步骤: 确定天线和接收天线之间的主要间接辐射路径,以在主导间接辐射路径的方向上建立来自天线的有效天线增益Gant,以及使用建立的有效天线增益Gant来计算P点处的路径损耗PL,以及 测得的接收信号强度指标RSSI。 用于映射覆盖区域的方法,用于模拟通信网络中的变化的方法和用于小区规划的系统。
    • 6. 发明申请
    • Methods and Arrangements for Handling a Setup of an S1 Application Protocol Signalling Connection
    • 用于处理S1应用协议信令连接的设置的方法和安排
    • US20120252436A1
    • 2012-10-04
    • US13516504
    • 2009-12-16
    • Peter ÖstrupStefan EngströmPeter Werner
    • Peter ÖstrupStefan EngströmPeter Werner
    • H04W8/02
    • H04W60/00H04W48/17H04W76/10H04W92/045
    • The invention relates to a method in a Mobility Management Entity (10,11) for handling a setup of an S1 Application Protocol signalling connection between a first radio base station and the Mobility Management Entity (10,11) in a Long Term Evolution radio communications network. The Mobility Management Entity (10,11) receives an S1 Setup Request message from the first radio base station (12). Furthermore, the Mobility Management Entity (10,11) sends an S1 Setup Response message to the first radio base station (12) enabling the first radio base station to handle the setup of the S1 Application Protocol signalling connection. The S1 Setup Response message comprises an indication of at least one supported tracking area code of a tracking area, which tracking area is served by the Mobility Management Entity (10,11).
    • 本发明涉及移动性管理实体(10,11)中的方法,用于在长期演进无线电通信中处理第一无线电基站和移动性管理实体(10,11)之间的S1应用协议信令连接的建立 网络。 移动管理实体(10,11)从第一无线电基站(12)接收S1建立请求消息。 此外,移动管理实体(10,11)向第一无线电基站(12)发送S1建立响应消息,使得第一无线电基站能够处理S1应用协议信令连接的建立。 S1设置响应消息包括跟踪区域的至少一个支持的跟踪区域代码的指示,该跟踪区域由移动性管理实体(10,11)服务。
    • 7. 发明授权
    • Methods and appratus for estimating cell radius in a mobile telecommunications network
    • 用于估计移动电信网络中小区半径的方法和应用
    • US08188995B2
    • 2012-05-29
    • US11915054
    • 2005-05-25
    • Stefan Engström
    • Stefan Engström
    • G06F17/00
    • H04W16/18
    • Methods and arrangements for provide for an estimation of a cell radius in a mobile telecommunications network. The arrangement comprises a processor which estimates path loss by using an arbitrary path loss estimation method wherein at least a pre-defined cell radius is used as input. The use of the arbitrary path loss estimation method results in a path loss data file comprising values associated with signal strength for pixels within the cell defined by the first cell radius. The processor also estimates a first updated cell radius by excluding pixels having a signal strength below a predetermined threshold from the cell area having the pre-defined cell radius, wherein the first updated cell radius is the cell radius of the remaining cell area when the pixels are excluded.
    • 用于提供移动电信网络中的小区半径的估计的方法和装置。 该装置包括通过使用任意的路径损耗估计方法来估计路径损耗的处理器,其中至少使用预定义的小区半径作为输入。 使用任意路径损耗估计方法产生路径损耗数据文件,该路径损耗数据文件包括与由第一小区半径定义的小区内的像素的信号强度相关联的值。 处理器还通过从具有预定单元半径的单元区域排除具有低于预定阈值的信号强度的像素来估计第一更新单元半径,其中第一更新单元半径是当像素 被排除在外。
    • 8. 发明授权
    • Network configuration audit
    • 网络配置审核
    • US08175607B2
    • 2012-05-08
    • US12520013
    • 2006-12-18
    • Stefan Engström
    • Stefan Engström
    • H04W40/00H04W16/18
    • H04W16/18
    • A cell planning tool capable of determining the correctness of stored parameters regarding a cell site configuration, e.g., regarding the height of an antenna section or the output power. The correctness of the parameters is determined by importing a number of in-situ signal strength-measurements from measuring points located within the coverage area of said cell site and predicting the signal-strength at each of said measuring points, using said stored parameters. Thereafter, the difference between the imported and the corresponding predicted signal-strength is calculated for each measuring point, and a value indicating the correctness of the stored parameters is estimated, based on said calculated signal-strength differences.
    • 一种能够确定关于小区站点配置的存储参数的正确性的小区规划工具,例如关于天线部分的高度或输出功率。 通过从位于所述小区站点的覆盖区域内的测量点导入许多原位信号强度测量并使用所存储的参数预测每个所述测量点处的信号强度来确定参数的正确性。 然后,根据所计算出的信号强度差,计算每个测量点的导入和对应的预测信号强度之间的差值,并且估计表示所存储的参数的正确性的值。