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1. 发明授权

US06285874B1 Cell identification based on distance 有权
标题翻译：基于距离的小区识别
公开(公告)号：US06285874B1
公开(公告)日：2001-09-04
申请号：US09196167
申请日：1998-11-20
申请人： Sverker Magnusson , Håkan Olofsson , Katarina Isaksson , Stephan Trzeciak
发明人： Sverker Magnusson , Håkan Olofsson , Katarina Isaksson , Stephan Trzeciak
IPC分类号： H04Q720
CPC分类号： H04W16/00 , H04W16/10 , H04W36/08 , H04W48/08
摘要： The present invention relates generally to the problem of determining the identity of a cell for e.g. cell handoff or automatic frequency planning, and more particularly to the problem of determining the true identity of a cell when only the transmission frequency and a non-unique identity code is known. A candidate list is created for each cell. This candidate list is created based on a function of various elements e.g. distance, transmission power, cell type, and antenna placement. The cells are then ranked on the candidate list based on this function. When a particular frequency/code combination is detected, the candidate list is then consulted, and the highest ranking cell with the same frequency/code combination is chosen as being the signal source. In an alternative embodiment the neighbor cell list is used to create the candidate list. If there are no matches on this list for the detected frequency/code combination, then the neighbors of the cells on the candidate list are also added to the candidate list which is then checked for a match.
摘要翻译：本发明一般涉及确定例如细胞的细胞的身份的问题。小区切换或自动频率规划，更具体地说，涉及当仅知道传输频率和非唯一性身份码时确定小区的真实身份的问题。为每个单元格创建候选列表。基于各种元素的功能创建该候选列表。距离，发射功率，小区类型和天线放置。然后，基于该功能，将这些单元列在候选列表上。当检测到特定的频率/代码组合时，然后查询候选列表，并且选择具有相同频率/代码组合的最高等级的单元作为信号源。在替代实施例中，相邻小区列表用于创建候选列表。如果检测到的频率/代码组合在该列表上没有匹配，则候选列表中的单元格的邻居也被添加到候选列表，然后检查匹配。

2. 发明授权

US6137991A Estimating downlink interference in a cellular communications system 失效
标题翻译：估计蜂窝通信系统中的下行链路干扰
公开(公告)号：US6137991A
公开(公告)日：2000-10-24
申请号：US940648
申请日：1997-09-30
申请人： Katarina Isaksson
发明人： Katarina Isaksson
IPC分类号： H04W16/18 , H04B7/26
CPC分类号： H04W16/18
摘要： A method is disclosed whereby a cellular network's Broadcast Control Channel Allocation BA lists are modified so that the mobile terminals in the network can measure downlink interference on predetermined Broadcast Control Channel Frequencies BCCH frequencies. These measurements can be made in all cells where the mobile terminals are located and then reported back to the base station. The base station maps the reported measurements to corresponding cells, and uses the mapping to produce a cell-to-cell interdependency matrix. For the preferred embodiment, the matrix describes the difference in path loss between cells. This path loss information can be used to derive downlink Carrier to Interference Ratio C/I Carrier to Adjacent Ratio or C/A ratios between cells (or combinations of those ratios) and thus an estimate of the downlink interference in the frequencies assigned to the same cells. Consequently, the downlink interference in the network can be taken into account when new frequencies are to be selected for each cell, which can be used to increase the overall quality of the network (in terms of the C/I).
摘要翻译：公开了一种方法，由此蜂窝网络的广播控制信道分配BA列表被修改，使得网络中的移动终端可以测量预定广播控制信道频率BCCH频率的下行链路干扰。这些测量可以在移动终端所在的所有小区中进行，然后被报告给基站。基站将报告的测量结果映射到相应的小区，并使用映射来产生一个单元间的相互依赖矩阵。对于优选实施例，矩阵描述了小区之间的路径损耗差异。该路径损耗信息可以用于导出小区之间的下行链路载波与干扰比C / I载波与相邻比率或C / A比（或这些比率的组合），并且因此估计分配给该小区的频率中的下行链路干扰细胞。因此，当为每个小区选择新的频率时，可以考虑网络中的下行链路干扰，这可以用于增加网络的总体质量（就C / I而言）。

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