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1. 发明申请

WO2009005594A3 METHOD AND APPARATUS FOR EFFICIENT AGGREGATE COMPUTATION OVER DATA STREAMS 审中-公开
标题翻译：通过数据流有效聚合计算的方法和设备
公开(公告)号：WO2009005594A3
公开(公告)日：2009-06-04
申请号：PCT/US2008007575
申请日：2008-06-18
申请人： LUCENT TECHNOLOGIES INC , C N KANTHI , K V M NAIDU , RASTOGI RAJEEV , SATKIN SCOTT
发明人： C N KANTHI , K V M NAIDU , RASTOGI RAJEEV , SATKIN SCOTT
IPC分类号： G06F17/30
CPC分类号： G06F17/30463 , G06F17/30412 , G06F17/30454 , G06F17/30548 , G06F17/30864
摘要： Improved techniques are disclosed for processing data stream queries wherein a data stream is obtained, a set of aggregate queries to be executed on the data stream is obtained, and a query plan for executing the set of aggregate queries on the data stream is generated. In a first method, the generated query plan includes generating at least one intermediate aggregate query, wherein the intermediate aggregate query combines a subset of aggregate queries from the set of aggregate queries so as to pre-aggregate data from the data stream prior to execution of the subset of aggregate queries such that the generated query plan is optimized for computational expense based on a given cost model. In a second method, the generated query plan includes identifying similar filters in two or more aggregate queries of the set of aggregate queries and combining the similar filters into a single filter such that the single filter is usable to pre-filter data input to the two or more aggregate queries.
摘要翻译：公开了用于处理数据流查询的改进技术，其中获得数据流，获得要在数据流上执行的一组聚合查询，并且生成用于在数据流上执行聚合查询集合的查询计划。在第一种方法中，生成的查询计划包括生成至少一个中间聚合查询，其中中间聚合查询组合来自聚合查询集合的聚合查询的子集，以便在执行之前从数据流预先聚合数据聚合查询的子集，使得生成的查询计划针对基于给定成本模型的计算费用进行优化。在第二种方法中，生成的查询计划包括在聚合查询集合的两个或更多个聚合查询中识别相似过滤器，并将相似过滤器组合成单个过滤器，使得单个过滤器可用于预先过滤输入到两个或更多聚合查询。

2. 发明申请

WO2009005594A2 METHOD AND APPARATUS FOR EFFICIENT AGGREGATE COMPUTATION OVER DATA STREAMS 审中-公开
标题翻译：数据流中有效汇总计算的方法与装置
公开(公告)号：WO2009005594A2
公开(公告)日：2009-01-08
申请号：PCT/US2008/007575
申请日：2008-06-18
申请人： LUCENT TECHNOLOGIES INC. , C N, Kanthi , K V M, Naidu , RASTOGI, Rajeev , SATKIN, Scott
发明人： C N, Kanthi , K V M, Naidu , RASTOGI, Rajeev , SATKIN, Scott
IPC分类号： G06F17/30
CPC分类号： G06F17/30463 , G06F17/30412 , G06F17/30454 , G06F17/30548 , G06F17/30864
摘要： Improved techniques are disclosed for processing data stream queries wherein a data stream is obtained, a set of aggregate queries to be executed on the data stream is obtained, and a query plan for executing the set of aggregate queries on the data stream is generated. In a first method, the generated query plan includes generating at least one intermediate aggregate query, wherein the intermediate aggregate query combines a subset of aggregate queries from the set of aggregate queries so as to pre-aggregate data from the data stream prior to execution of the subset of aggregate queries such that the generated query plan is optimized for computational expense based on a given cost model. In a second method, the generated query plan includes identifying similar filters in two or more aggregate queries of the set of aggregate queries and combining the similar filters into a single filter such that the single filter is usable to pre-filter data input to the two or more aggregate queries.
摘要翻译：公开了用于处理数据流查询的改进技术，其中获得数据流，获得要在数据流上执行的一组聚合查询，并且生成用于在数据流上执行聚合查询集合的查询计划。在第一种方法中，生成的查询计划包括生成至少一个中间聚合查询，其中中间聚合查询组合来自聚合查询集合的聚合查询的子集，以便在执行之前从数据流预聚合数据聚合查询的子集，使得生成的查询计划基于给定的成本模型被优化用于计算开销。在第二种方法中，所生成的查询计划包括在集合查询集合的两个或多个聚合查询中识别类似的过滤器，并将类似的过滤器组合成单个过滤器，使得单个过滤器可用于预先过滤输入到两个或更多聚合查询。

3. 发明申请

WO2012137029A1 QOS AWARE MULTI RADIO ACCESS POINT FOR OPERATION IN TV WHITESPACES 审中-公开
标题翻译： QOS AWARE多功能无线电接入点，用于在电视机中进行操作
公开(公告)号：WO2012137029A1
公开(公告)日：2012-10-11
申请号：PCT/IB2011/001043
申请日：2011-04-08
申请人： ALCATEL LUCENT , DEB, Supratim , GUPTA, Piyush , C N, Kanthi , SRINIVASAN, Vikram
发明人： DEB, Supratim , GUPTA, Piyush , C N, Kanthi , SRINIVASAN, Vikram
IPC分类号： H04W72/04
CPC分类号： H04W16/14 , H04W16/10 , H04W72/0453 , H04W72/085 , H04W72/087
摘要： QoS aware multi radio access point for operation in TV whitespaces is disclosed. The present invention relates to operation of access points and, particularly, to operation of access points in TV whitespaces. The AP is configured to intelligently choose the radios, determine available whitespaces in the spectrum and allocate radios to the available whitespaces in the spectrum. The method determines clients that need to be serviced by the AP and assigns each client associated with AP to one of the radios. In addition, the method also takes care of QoS requirements for different services and hence every service is addressed to satisfy its QoS requirements. The method ensures that there is maximum utilization of available whitespace spectrum by accounting for the spectrum specific characteristics. The method considers bands for operation are spread across the spectrum and allocates the clients based on the availability of bands throughout the spectrum.
摘要翻译：公开了在电视空白中操作的QoS感知多无线接入点。本发明涉及接入点的操作，特别涉及电视空间中接入点的操作。 AP被配置为智能地选择无线电，确定频谱中的可用空白，并将频谱中的可用空格分配无线电。该方法确定AP需要服务的客户端，并将与AP关联的每个客户端分配给其中一个无线电设备。另外，该方法还可以满足不同业务的QoS要求，从而满足其QoS要求。该方法通过考虑频谱特性来确保可用空白频谱的最大利用。该方法将波段的操作分散在频谱上，并根据频谱范围内的频带的可用性来分配客户端。

4. 发明申请

WO2012130749A1 BANDWIDTH ALLOCATION IN THE TELEVISION WHITESPACE SPECTRUM 审中-公开
标题翻译：电视白光谱中的带宽分配
公开(公告)号：WO2012130749A1
公开(公告)日：2012-10-04
申请号：PCT/EP2012/055185
申请日：2012-03-23
申请人： ALCATEL LUCENT , SRINIVASAN, Vikram , DEB, Supratim , C N, Kanthi , GUPTA, Piyush
发明人： SRINIVASAN, Vikram , DEB, Supratim , C N, Kanthi , GUPTA, Piyush
IPC分类号： H04W72/04
CPC分类号： H04W28/20 , H04W16/14 , H04W72/082
摘要： Systems and methods for beaconing and management in bandwidth adaptive wireless networks are disclosed. The present invention relates to bandwidth allocation for access points and, more particularly, to bandwidth allocation for access points in wireless networks. The method employs mechanisms for beaconing and management to associate clients with Access Point (AP). The beaconing mechanism allows the client to discover part of the spectrum over which an AP operates efficiently. Periodic beacon messages are sent by AP to the client over the bandwidth of operation of the channel. The client then sends a client association request and gets associated with the AP. Further, critical information is conveyed to the AP in the beacon message. The AP further allocates the client to one of its radios of operation. The system is configured to handle disruptions and switching the AP to different parts of the spectrum during such disruptions.
摘要翻译：公开了带宽自适应无线网络中的信标和管理的系统和方法。本发明涉及接入点的带宽分配，更具体地说，涉及无线网络中接入点的带宽分配。该方法采用信标和管理机制将客户端与接入点（AP）相关联。信标机制允许客户端发现AP有效运行的频谱的一部分。周期性信标消息由AP通过信道的操作带宽发送给客户端。然后，客户端发送客户端关联请求，并与AP关联。此外，在信标消息中将关键信息传送给AP。 AP进一步将客户端分配到其一个无线电操作。该系统被配置为在这种中断期间处理中断并将AP切换到频谱的不同部分。

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