专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07230973B2 Multi-user detection method with accelerated sphere decoding 失效
标题翻译：加速球体解码的多用户检测方法
公开(公告)号：US07230973B2
公开(公告)日：2007-06-12
申请号：US10421912
申请日：2003-04-24
申请人： Loïc Brunel
发明人： Loïc Brunel
IPC分类号： H04B1/69 , H04B1/707
CPC分类号： H04L25/03331 , H04B1/71057 , H04L25/03242 , H04L25/03299 , H04L27/22
摘要： A method is provided for detecting a plurality of symbols (dk(i)) transmitted by or for a plurality K of users, each symbol belonging to a modulation constellation. Filtering of a received signal is performed for supplying a vector (z) each component of which being related to a user. The closest neighbor of the vector is searched among candidates belonging to a lattice of points generated by the modulation constellations. The search is limited to a volume centered around the vector and is carried out by sequentially selecting a coordinate (bk) of a candidate for each dimension of the vector. The components of the vector are recorded according to an ordering rule prior to the search, the ordering rule being chosen so as to eliminate a higher rate of candidates for a first dimension than for a subsequent dimension to be searched.
摘要翻译：提供了一种用于检测由多个K个用户发送或针对多个用户发送的多个符号（d SUB（i））的方法，每个符号属于调制星座图。执行接收信号的滤波，以提供与用户相关的每个分量的矢量（z）。在属于由调制星座生成的点的格子的候选中搜索向量的最近邻。搜索被限制为以向量为中心的体积，并且通过顺序地选择矢量的每个维度的候选者的坐标（b> k N）来执行。根据搜索之前的排序规则来记录向量的分量，选择排序规则，以消除第一维的候选比对于要搜索的后续维的更高的候选。

2. 发明授权

US06987818B2 Simplified method of detection by spheres when there is a low signal to noise ratio 失效
标题翻译：当信噪比低时，通过球体进行简化的检测方法
公开(公告)号：US06987818B2
公开(公告)日：2006-01-17
申请号：US10029953
申请日：2001-12-31
申请人： Loïc Brunel
发明人： Loïc Brunel
IPC分类号： H03D1/00
CPC分类号： H04B1/7105 , H04B1/7093 , H04B1/71057 , H04L25/03993 , H04L25/061 , H04L27/38
摘要： Method of detecting a plurality of symbols transmitted by or to a plurality of users from a received signal, each symbol of a user belonging to a modulation constellation, the detection method using a lattice of points generated by the said modulation constellations, the said plurality of symbols of the different users being represented by a point amongst a subset of points in the said lattice, the said constellation and the received signal being represented by a point characteristic of this signal, referred to as the received point, translated from a point in the said constellation by a noise vector, the method including a step of orthogonal projection of the received point onto an affine subspace, referred to as a projection subspace, parallel to or merged with an affine subspace delimiting the constellation, and a step of seeking the closest neighbor to the point thus projected amongst the points in the constellation.
摘要翻译：从接收信号中检测由多个用户发送的多个符号的多个符号的方法，属于调制星座的用户的每个符号，使用由所述调制星座产生的点的格子的检测方法，不同用户的符号由所述格子中的点子集中的点表示，所述星座图和接收信号由该信号的点特征表示，称为接收点，从所述星座由噪声矢量表示，所述方法包括将接收点正交投影到与划分星座图的仿射子空间平行或与之合并的仿射子空间（称为投影子空间）的步骤，以及寻找最接近的相邻于在星座中的点之间所预测的点。

3. 发明授权

US08615266B2 Method and a device for adjusting the transmission power of signals 失效
标题翻译：用于调整信号传输功率的方法和装置
公开(公告)号：US08615266B2
公开(公告)日：2013-12-24
申请号：US12692960
申请日：2010-01-25
申请人： Hervé Bonneville , Loïc Brunel , Damien Castelain , Nicolas Gresset , Mourad Khanfouci , David Mottier
发明人： Hervé Bonneville , Loïc Brunel , Damien Castelain , Nicolas Gresset , Mourad Khanfouci , David Mottier
IPC分类号： H04B7/00
CPC分类号： H04W52/50 , H04W52/244 , H04W52/262
摘要： The present invention concerns a method for adjusting the transmission power of signals transferred by or to a first base station, the first base station being located in the cell of a second base station, the first base station: transfers a first message to the second base station, receives a message comprising information representative of the path between the first base station and the second base station, receives messages transferred by the second base station to mobile terminals, information comprised in at least one message enabling the determination of the coverage of the second base station, computing a metric from both information, adjusting, according to the computed metric, the transmission power of the signals transferred by the first base station to at least a mobile terminal and/or the transmission power of the signals transferred to the first base station by at least one mobile terminal.
摘要翻译：本发明涉及一种用于调整由第一基站传送或传输给第一基站的信号的发射功率的方法，所述第一基站位于第二基站的小区中，所述第一基站：将第一消息传送到所述第二基站接收包括表示第一基站和第二基站之间的路径的信息的消息，将由第二基站传送的消息接收到移动终端，包括在至少一个消息中的信息能够确定第二基站的覆盖范围基站，从两个信息计算一个度量，根据所计算的度量，调整由第一基站传送到至少一个移动终端的信号的传输功率和/或传送到第一基站的信号的传输功率至少有一个移动终端站。

4. 发明授权

US06717979B2 Method for estimating a direction of arrival 有权
标题翻译：估计到达方向的方法
公开(公告)号：US06717979B2
公开(公告)日：2004-04-06
申请号：US10126543
申请日：2002-04-22
申请人： Alexandre Ribeiro Dias , Loïc Brunel
发明人： Alexandre Ribeiro Dias , Loïc Brunel
IPC分类号： H04B1707
CPC分类号： G06K9/0057 , G01S3/74
摘要： A method for estimating a direction of arrival of a signal transmitted by a signal source and received by an antenna array. The method estimates the covariance matrix of the signals received by the antennas of the array and derives therefrom a direction of arrival. The received signals are correlated with a reference signal transmitted by the source prior to being submitted to the covariance matrix estimation.
摘要翻译：一种用于估计由信号源发送并由天线阵列接收的信号的到达方向的方法。该方法估计由阵列的天线接收的信号的协方差矩阵，并从其导出到达方向。所接收的信号在被提交到协方差矩阵估计之前与源发送的参考信号相关。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式