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    • 7. 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。
    • 8. 发明授权
    • Updating of neighbor cell information in a radio communications system
    • 在无线电通信系统中更新相邻小区信息
    • US09591534B2
    • 2017-03-07
    • US14425448
    • 2012-09-06
    • Stefan EngströmBo EhrenholmJohan MoePaul Schliwa-BertlingMikael SöderströmPatrik Wiman
    • Stefan EngströmBo EhrenholmJohan MoePaul Schliwa-BertlingMikael SöderströmPatrik Wiman
    • H04W36/00H04W24/02H04W16/14H04W48/16
    • H04W36/0083H04W16/14H04W24/02H04W48/16
    • Methods, network control nodes, network nodes and user equipments for assisting the updating of neighbor cell information when a new cell is introduced, or added, to an already existing radio access network are described in this disclosure. According to an example embodiment a signal is transmitted, from a first network control node 10 associated with RAN1 to a second network control node 20 associated with RAN2. This signal comprises a cell identity CI1, e.g. a Local Cell Identity LCI1, of the newly introduced cell C109, which is added to RAN1. Next, the second network control node 20 of RAN2 receives the signal comprising the cell identity CI1 of this newly introduced cell C109. In response, the second network control node 20 transmits, to at least one user equipment 30e associated with the RAN2, a signal comprising the received cell identity CI1 of the newly introduced cell C109 as well as a request to the at least one UE 30e associated with RAN2 to search for the newly introduced cell C109 of RAN1, which is controlled by network node 40.
    • 在本公开中描述了当将新小区引入或添加到已经存在的无线电接入网络时用于辅助邻居小区信息更新的网络控制节点,网络节点和用户设备。 根据示例实施例,从与RAN1相关联的第一网络控制节点10向与RAN2相关联的第二网络控制节点20发送信号。 该信号包括小区标识CI1,例如, 新引入的小区C109的本地小区标识LCI1,其被添加到RAN1。 接下来,RAN2的第二网络控制节点20接收包括该新引入的小区C109的小区标识CI1的信号。 作为响应,第二网络控制节点20向与RAN2相关联的至少一个用户设备30e发送包括新引入的小区C109的所接收小区标识CI1的信号,以及对至少一个UE 30e的相关请求 RAN2搜索由网络节点40控制的RAN1的新引入的小区C109。
    • 9. 发明申请
    • Determining Root Sequence
    • 确定根序列
    • US20140211606A1
    • 2014-07-31
    • US14239615
    • 2011-08-22
    • Petter BergmanStefan Engström
    • Petter BergmanStefan Engström
    • H04W36/08
    • H04W36/08H04W16/10H04W74/004H04W92/20
    • It is presented a method, executed in a root sequence determiner for a base station controlling a first cell, the first cell being associated with at least one root sequence used for cell differentiation on a random access channel. The method comprises the steps of: obtaining information on root sequences of neighbouring cells; when a root sequence conflict is found between the first cell and a neighbouring cell, here denoted a conflict cell, determining if the conflict cell is of a higher priority than the first cell, the priorities of the first cell and the conflict cell being based on properties of the respective cells; and when the conflict cell is of a higher priority than the first cell, finding a new root sequence for the first cell, avoiding the root sequences of the neighbouring cells.
    • 呈现一种方法,该方法在用于控制第一小区的基站的根序列确定器中执行,第一小区与用于随机接入信道上的小区区分的至少一个根序列相关联。 该方法包括以下步骤:获取关于相邻小区根序列的信息; 当在第一小区和相邻小区之间找到根序列冲突时,这里表示为冲突小区,确定冲突小区是否具有比第一小区更高的优先级,第一小区和冲突小区的优先级基于 各细胞的性质; 并且当冲突小区具有比第一小区更高的优先级时,找到第一小区的新根序列,避免相邻小区的根序列。
    • 10. 发明授权
    • 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布置
    • US08682320B2
    • 2014-03-25
    • US13516504
    • 2009-12-16
    • Peter ÖstrupStefan EngströmPeter Werner
    • Peter ÖstrupStefan EngströmPeter Werner
    • H04W4/00
    • 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。