公开(公告)号：US20100315947A1

公开(公告)日：2010-12-16

申请号：US12525939

申请日：2007-02-05

申请人： Karl Torbjorn Wigren

发明人： Karl Torbjorn Wigren

IPC分类号： H04J13/00 ,  H04L12/26

CPC分类号： H04W52/343 ,  H04B17/327 ,  H04W28/02

摘要： A method for providing load reference data in a CDMA system comprises measuring of received total wideband power and of received scheduled enhanced uplink power. State variables are selected corresponding to cell power quantities and measurement functions are selected corresponding to the measured received total wideband power and the measured received scheduled enhanced uplink power. A probability distribution for a first power quantity—related to the selected state variables—is estimated. A conditional probability distribution of a noise floor measure is computed based on the estimated probability distribution for the first power quantity. Load reference data is provided based on the computed conditional probability distribution of the noise floor measure. In a preferred embodiment, the first power quantity is a measure of the difference between received total wideband power and received scheduled enhanced uplink power. The load reference data can be used in e.g. enhanced uplink scheduling or admission control.

摘要翻译： 一种用于在CDMA系统中提供负载参考数据的方法包括测量所接收的总宽带功率和接收的调度增强上行链路功率。 对应于小区功率量选择状态变量，并且对应于测量的接收总宽带功率和测量的接收到的调度增强上行链路功率来选择测量功能。 估计与所选状态变量相关的第一功率量的概率分布。 基于第一功率量的估计概率分布来计算噪声本底测量的条件概率分布。 基于噪声基底测量的计算条件概率分布提供负载参考数据。 在优选实施例中，第一功率量是接收到的总宽带功率与接收的调度增强上行链路功率之差的度量。 负载参考数据可以用于例如 增强上行调度或准入控制。

公开(公告)号：US07692582B2

公开(公告)日：2010-04-06

申请号：US11912991

申请日：2005-04-29

申请人： Karl Torbjorn Wigren ,  Mans Persson

发明人： Karl Torbjorn Wigren ,  Mans Persson

IPC分类号： G01S1/01

CPC分类号： G01S19/06 ,  G01S19/258

摘要： A method, an apparatus and a computer program for providing assistance data for satellite based positioning of mobile stations operating in a first cell of a cellular radio communication system utilizing ranging signals transmitted by satellites. A sequence of assistance data for positioning of a mobile station operating in the first cell is generated (306) by including in said sequence assistance data associated with individual satellites in a set of at least four satellites. At least one of said set of satellites and the order in which assistance data associated with individual satellites occurs in said sequence of assistance data is selected (305) utilizing control data associated with the first cell and reflecting local obstructions in the first cell or its immediate surroundings affecting reception of said ranging signals in the first cell. The invention also includes a method, an apparatus and a computer program for updating (311) said control data utilizing information derived from positionings of mobile stations in the first cell.

摘要翻译： 一种方法，装置和计算机程序，用于提供用于卫星定位的辅助数据，所述移动站利用由卫星发射的测距信号在蜂窝无线电通信系统的第一小区中工作。 通过在至少四颗卫星的一组中以与所述单个卫星相关联的所述序列的方式包括辅助数据来生成用于在第一小区中操作的移动台的定位的辅助数据序列（306）。 使用与第一小区相关联的控制数据并且反映第一小区中的局部障碍物或其立即的（a），选择所述卫星组中的至少一个和辅助数据与辅助数据相关联的顺序发生在所述辅助数据序列中 影响第一小区中所述测距信号的接收的环境。 本发明还包括一种方法，装置和计算机程序，用于利用从第一小区中的移动站的定位得到的信息来更新（311）所述控制数据。

公开(公告)号：US20100009683A1

公开(公告)日：2010-01-14

申请号：US12346128

申请日：2008-12-30

申请人： Johan BOLIN ,  Karl Torbjorn WIGREN

发明人： Johan BOLIN ,  Karl Torbjorn WIGREN

IPC分类号： H04W36/00 ,  H04W4/00

CPC分类号： H04W8/26 ,  H04J11/0069

摘要： Methods and systems for obscuring network topologies are described. Cell re-planning techniques can be used to modify cell identities to obscure a relationship between nodes in a communication system and their geographical location. One or more algorithms can be used to operate on, e.g., cell plan lists, cell neighbor lists and/or cell identities.

摘要翻译： 描述了用于模糊网络拓扑的方法和系统。 小区重新规划技术可用于修改小区标识，以掩盖通信系统中的节点与其地理位置之间的关系。 一个或多个算法可以用于例如细胞计划列表，小区邻居列表和/或小区标识。

公开(公告)号：US20080227400A1

公开(公告)日：2008-09-18

申请号：US12064854

申请日：2005-08-26

申请人： Karl Torbjorn Wigren

发明人： Karl Torbjorn Wigren

IPC分类号： H04B17/00

CPC分类号： H04B1/7097 ,  H04B17/26 ,  H04B17/327 ,  H04B17/382

摘要： A received total wideband power (61A) in a wireless communications system is measured a number of times during a time interval. Preferably, also code powers ((C/I)i) are measured, directly or indirectly. A probability distribution of a first power quantity (63A, 63B), typically total received power is estimated from the set of measurements, preferably using Kalman filtering techniques, and preferably also a probability distribution of a second power quantity (62A, 62B) related to noise and interference signals. A conditional probability distribution of a noise rise measure to be determined is based at least on the probability distribution of the total power (63A, 63B). From that conditional probability distribution, a value of the noise rise measure is calculated. In a preferred embodiment, the noise rise measure is based on a quotient between total power and a noise floor, and the conditional probability distribution of the noise rise is therefore based on a conditional probability distribution of noise floor quantity (64). The conditional probability distribution of the noise floor quantity (64) is in turn based on the probability distribution of the extreme value of a second power quantity (62A, 62B) related to noise and interference signals and a prior determined probability distribution of a noise power floor.

摘要翻译： 无线通信系统中接收到的总宽带功率（61A）在一段时间间隔内被测量次数。 优选地，还直接或间接地测量代码权（（C / I）i）。 优选使用卡尔曼滤波技术来估计第一功率量（63A，63B）的概率分布（通常为总接收功率），并且优选地也是第二功率量（62A，63B）的概率分布 B）与噪声和干扰信号有关。 要确定的噪声上升测量的条件概率分布至少基于总功率的概率分布（63A，63B）。 从该条件概率分布，计算噪声上升量的值。 在优选实施例中，噪声上升测量基于总功率和噪声底限之间的商，因此噪声上升的条件概率分布基于噪声基底量的条件概率分布（64）。 基于与噪声和干扰信号相关的第二功率量（62A，62B）的极值的概率分布，以及先前确定的噪声和干扰信号的概率分布，噪声本底数量（64）的条件概率分布依次为 噪音电源楼。