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

US06952591B2 Uplink power control algorithm 有权
标题翻译：上行电源控制算法
公开(公告)号：US06952591B2
公开(公告)日：2005-10-04
申请号：US09989335
申请日：2001-11-20
申请人： Kenneth C. Budka , Arnab Das , Kamala Murti , Yinglu Zhang
发明人： Kenneth C. Budka , Arnab Das , Kamala Murti , Yinglu Zhang
IPC分类号： H04B7/005 , H04Q7/20
CPC分类号： H04W52/265 , H04W52/24 , H04W52/36
摘要： In a system having a base station transmitter for transmitting data blocks to one or more mobile stations over a radio link, there is a method for determining an uplink transmit power level at which to transmit a current data block over a radio link from the mobile to the base transmitter station. The method evaluates airlink quality measurements in the radio link over a measurement interval, wherein each time a message is sent to the mobile station, it is evaluated whether a specified number of uplink blocks have transmitted by the mobile station since the start of the measurement interval. Based on the evaluated airlink quality measurement, the method determines the uplink transmit power level that the mobile should be using for the current block, and adjusts the transmit power level, if necessary, for the current block.
摘要翻译：在具有用于通过无线电链路将数据块发送到一个或多个移动站的基站发射机的系统中，存在一种用于确定通过无线电链路将当前数据块从移动台发送到上行链路发射功率电平的方法，基地发射台。该方法在测量间隔内对无线链路中的空中链路质量测量进行评估，其中，每次向移动台发送消息时，评估自测量间隔开始以来移动台是否发送了指定数量的上行链路块。基于评估的空中链路质量测量，该方法确定移动站应当为当前块使用的上行链路发射功率电平，并且如果需要，对当前块调整发射功率电平。

2. 发明授权

US07340267B2 Uplink power control algorithm 有权
标题翻译：上行电源控制算法
公开(公告)号：US07340267B2
公开(公告)日：2008-03-04
申请号：US10123131
申请日：2002-04-17
申请人： Kenneth C. Budka , Arnab Das , Yinglu Zhang
发明人： Kenneth C. Budka , Arnab Das , Yinglu Zhang
IPC分类号： H04B7/00
CPC分类号： H04W52/265 , H04W52/08 , H04W52/146
摘要： In a system having a base station transmitter for transmitting data blocks to one or more mobile stations over a radio link, there is a method for determining an uplink transmit power level at which to transmit a current data block over a radio link from the mobile to the base transmitter station. The method evaluates airlink quality measurements in the radio link over a measurement interval, wherein each time a message is sent to the mobile station, it is evaluated whether a specified number of uplink blocks have been transmitted by the mobile station since the start of the measurement interval. Based on the evaluated airlink quality measurement, the method determines the uplink transmit power level that the mobile should be using for the current block, and adjusts the transmit power level, if necessary, for the current block.
摘要翻译：在具有用于通过无线电链路将数据块发送到一个或多个移动站的基站发射机的系统中，存在一种用于确定通过无线电链路将当前数据块从移动台发送到上行链路发射功率电平的方法，基地发射台。该方法在测量间隔内评估无线电链路中的空中链路质量测量，其中每次向移动台发送消息时，评估自测量开始以来移动台是否已经发送了指定数量的上行链路块间隔。基于评估的空中链路质量测量，该方法确定移动站应当为当前块使用的上行链路发射功率电平，并且如果需要，对当前块调整发射功率电平。

3. 发明授权

US07313092B2 Apparatus and method for an overload control procedure against denial of service attack 有权
标题翻译：一种针对拒绝服务攻击的过载控制程序的装置和方法
公开(公告)号：US07313092B2
公开(公告)日：2007-12-25
申请号：US10261299
申请日：2002-09-30
申请人： Wing Cheong Lau , Yinglu Zhang
发明人： Wing Cheong Lau , Yinglu Zhang
IPC分类号： H04L12/22 , G06F11/00
CPC分类号： H04L63/1458 , H04L1/20
摘要： The present invention is a methodology to prioritize packets based on the conditional probability that given the values of attributes carried by packet, the packet is a legitimate one. We will call this the conditional legitimate probability of a packet from here onward. The conditional probability of each packet is evaluated based on Bayesian estimation technique. This is accomplished by comparing the attributes carried by an incoming packet against the “nominal” distribution of attributes of legitimate packet stream. Since an exact prioritization of packets based on their conditional legitimate probability would require offline, multiple-pass operations, e.g. sorting, we take the following alternative approach to realize an online, one-pass selectively dropping scheme. In particular, we maintain the cumulative distribution function (CDF) of the conditional legitimate probability of all incoming packets and apply a threshold-based selective dropping mechanism according to the conditional probability value computed for each incoming packet. To speed-up the computation of the conditional legitimate probability for each incoming packet, we may, as an alternative, use the logarithmic version of the equation to implement the Bayesian estimation process. Other features of the invention include: providing means to guarantee minimum throughput of particular (pre-configured) type(s) of packets; providing a. Filtering Mechanism to suppress the noise during estimation/maintenance of nominal attributes distribution; applying state-of-the-art efficient algorithm/data-structures for quantile and histogram building/updates; using the proven, industrial-strength load-shedding algorithms as a submodule in the overload control algorithm; and being amenable to practical implementation to support online, one-pass processing on high-speed communication links.
摘要翻译：本发明是一种基于给定由分组携带的属性的值的条件概率来分组的方法，该分组是合法的。我们将把这个来自这里的数据包的条件合法概率称为。基于贝叶斯估计技术对每个分组的条件概率进行评估。这通过将输入分组携带的属性与合法分组流的属性的“标称”分布进行比较来实现。由于基于其条件合法概率的分组的精确优先级将需要离线，多遍操作，例如，排序，我们采取以下替代方法来实现在线，一次选择性下降方案。特别地，我们维护所有传入分组的条件合法概率的累积分布函数（CDF），并且根据为每个输入分组计算的条件概率值应用基于阈值的选择性丢弃机制。为了加速每个传入分组的条件合法概率的计算，作为替代，我们可以使用方程的对数版本来实现贝叶斯估计过程。本发明的其他特征包括：提供用于保证特定（预配置）类型的分组的最小吞吐量的装置; 提供一个过滤机制，用于在名义属性分布的估计/维护期间抑制噪声; 应用最先进的有效算法/数据结构进行分位数和直方图构建/更新; 在过载控制算法中，采用成熟的工业强度卸载算法作为子模块; 并适应实际实施，支持高速通信链路上的在线一次处理。

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