-
1.发明申请公开(公告)号：US20100137014A1
公开(公告)日：2010-06-03
申请号：US12327543
申请日：2008-12-03
申请人： Yadunandana N. Rao , Apoorv Chaudhri , Sudhir Rao
发明人： Yadunandana N. Rao , Apoorv Chaudhri , Sudhir Rao
IPC分类号： H04B7/00
CPC分类号： H04B7/0452 , H04W72/02
摘要： A cooperative sensing technique (300) operates by selecting a group of subscribers (302) from a secondary system, measuring a cooperative sensing metric (306) and then using the metric to identify an achievable spatial diversity gain for the group of selected subscribers (308). Once an achievable spatial diversity gain is determined for the group (308/412), it is compared to a required spatial diversity gain (310), and if the condition is met at (310), the validated group can begin spectrum sensing (314) to identify a vacant/suitable channel for operation. If the achievable spatial diversity gain is insufficient, then a new group of users is selected (312) within the secondary system and the process repeats itself.
摘要翻译： 协作感测技术（300）通过从次系统选择一组订户（302）来操作，测量协作感测度量（306），然后使用度量来识别所选择的用户组（308）的可实现的空间分集增益 ）。 一旦为组确定可实现的空间分集增益（308/412），则将其与所需的空间分集增益（310）进行比较，如果在（310）满足条件，则验证组可以开始频谱感测（314 ）来确定一个空的/合适的操作通道。 如果可实现的空间分集增益不足，则在辅助系统内选择一组新的用户（312），并且该过程重复。
-
公开(公告)号：US20100103924A1
公开(公告)日：2010-04-29
申请号：US12259228
申请日：2008-10-27
申请人： Yadunandana N. Rao , Apoorv Chaudhri , Sudhir Rao
发明人： Yadunandana N. Rao , Apoorv Chaudhri , Sudhir Rao
IPC分类号： H04L12/28
CPC分类号： H04W16/14 , H04W40/08 , H04W40/20 , H04W84/18 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y02D70/324 , Y02D70/38
摘要： A method (400) and system (100) for a wireless multi-hopping communication system is provided, wherein the system (100) includes an access point (102), a source node (CR1), and a plurality of nodes. The source node (CR1) is in communication with the access point (102), and configured to transmit a signal on at least one of a plurality of frequencies. The plurality of nodes are in communication with the access point (102) and the source node (CR1), and configured to transmit a signal on at least one of the plurality of frequencies, wherein the source node (CR1) and the plurality of nodes are adapted to determine a routing path utilizing at least one intermediate node (CR2) of the plurality of nodes and a transmitting frequency of the plurality of frequencies while reducing interference to a primary user of the transmitting frequency.
摘要翻译： 提供了一种用于无线多跳通信系统的方法（400）和系统（100），其中系统（100）包括接入点（102），源节点（CR1）和多个节点。 源节点（CR1）与接入点（102）通信，并且被配置为在多个频率中的至少一个频率上发送信号。 所述多个节点与所述接入点（102）和所述源节点（CR1）通信，并且被配置为在所述多个频率中的至少一个频率上发送信号，其中所述源节点（CR1）和所述多个节点 适于使用所述多个节点中的至少一个中间节点（CR2）和所述多个频率的发射频率来确定路由路径，同时减少对所述发射频率的主用户的干扰。
-
3.发明授权公开(公告)号：US08135424B2
公开(公告)日：2012-03-13
申请号：US12327543
申请日：2008-12-03
申请人： Yadunandana N. Rao , Apoorv Chaudhri , Sudhir Rao
发明人： Yadunandana N. Rao , Apoorv Chaudhri , Sudhir Rao
CPC分类号： H04B7/0452 , H04W72/02
摘要： A cooperative sensing technique (300) operates by selecting a group of subscribers (302) from a secondary system, measuring a cooperative sensing metric (306) and then using the metric to identify an achievable spatial diversity gain for the group of selected subscribers (308). Once an achievable spatial diversity gain is determined for the group (308/412), it is compared to a required spatial diversity gain (310), and if the condition is met at (310), the validated group can begin spectrum sensing (314) to identify a vacant/suitable channel for operation. If the achievable spatial diversity gain is insufficient, then a new group of users is selected (312) within the secondary system and the process repeats itself.
摘要翻译： 协作感测技术（300）通过从次系统选择一组订户（302）来操作，测量协作感测度量（306），然后使用度量来识别所选择的用户组（308）的可实现的空间分集增益 ）。 一旦为组确定可实现的空间分集增益（308/412），则将其与所需的空间分集增益（310）进行比较，如果在（310）满足条件，则验证组可以开始频谱感测（314 ）来确定一个空的/合适的操作通道。 如果可实现的空间分集增益不足，则在辅助系统内选择一组新的用户（312），并且该过程重复。
-
公开(公告)号：US08295893B2
公开(公告)日：2012-10-23
申请号：US12879053
申请日：2010-09-10
CPC分类号： H04W52/0216 , Y02D70/142 , Y02D70/164
摘要： Systems and methods for managing power consumption in a device include toggling an ON-OFF setting of apparatus, which controls a carrier detector. The toggling is carried out according to a first duty cycle having a fixed OFF-time duration and a first dwell time having a first dwell time duration during which the carrier detector performs radio frequency carrier detection function. The device receives at least one input that affects the radio frequency carrier detection function, and the first duty cycle is changed to a second duty cycle. The toggling is carried out according to the second duty cycle, which has the same fixed OFF-time duration of the first duty cycle and a second dwell time having a second dwell time duration that is longer than the first dwell time duration, during which the radio frequency carrier detection function is performed.
摘要翻译： 用于管理设备中的功率消耗的系统和方法包括切换控制载波检测器的设备的ON-OFF设置。 根据具有固定的关闭时间的第一占空比和具有载波检测器执行射频载波检测功能的第一驻留时间的第一驻留时间执行切换。 该装置接收影响射频载波检测功能的至少一个输入，并且将第一占空比改变为第二占空比。 根据第二占空比进行切换，第二占空比具有与第一占空比相同的固定的关闭时间持续时间和具有比第一停留时间长的第二停留时间的第二停留时间，在此期间， 执行射频载波检测功能。
-
公开(公告)号：US08131304B2
公开(公告)日：2012-03-06
申请号：US12414642
申请日：2009-03-30
IPC分类号： H04W72/00
摘要： A method of dynamically allocating RF communication channels to a wireless communication device (102). A plurality of dynamic spectrum allocation (DSA) channels (222, 224) can be identified. The DSA channels can be channels that are available to a non-incumbent user to be used for RF communications. Based on at least one required channel parameter, a DSA channel can be selected as a first channel to allocate to the wireless communication device. At least a second channel can be selected to allocate to the wireless communication device based on a spectral relationship between the first channel and the second channel to ensure that the first and second channels are separated by at least a minimum required frequency separation (216).
摘要翻译： 一种向无线通信设备（102）动态地分配RF通信信道的方法。 可以识别多个动态频谱分配（DSA）信道（222,224）。 DSA频道可以是非现有用户可用于RF通信的频道。 基于至少一个所需的信道参数，可以选择DSA信道作为分配给无线通信设备的第一信道。 可以基于第一信道和第二信道之间的频谱关系来选择至少第二信道来分配给无线通信设备，以确保第一和第二信道至少分离最小所需频率间隔（216）。
-
公开(公告)号：US08014337B2
公开(公告)日：2011-09-06
申请号：US12259228
申请日：2008-10-27
申请人： Yadunandana N. Rao , Apoorv Chaudhri , Surhir Rao
发明人： Yadunandana N. Rao , Apoorv Chaudhri , Surhir Rao
CPC分类号： H04W16/14 , H04W40/08 , H04W40/20 , H04W84/18 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y02D70/324 , Y02D70/38
摘要： A method (400) and system (100) for a wireless multi-hopping communication system is provided, wherein the system (100) includes an access point (102), a source node (CR1), and a plurality of nodes. The source node (CR1) is in communication with the access point (102), and configured to transmit a signal on at least one of a plurality of frequencies. The plurality of nodes are in communication with the access point (102) and the source node (CR1), and configured to transmit a signal on at least one of the plurality of frequencies, wherein the source node (CR1) and the plurality of nodes are adapted to determine a routing path utilizing at least one intermediate node (CR2) of the plurality of nodes and a transmitting frequency of the plurality of frequencies while reducing interference to a primary user of the transmitting frequency.
摘要翻译： 提供了一种用于无线多跳通信系统的方法（400）和系统（100），其中系统（100）包括接入点（102），源节点（CR1）和多个节点。 源节点（CR1）与接入点（102）通信，并且被配置为在多个频率中的至少一个频率上发送信号。 所述多个节点与所述接入点（102）和所述源节点（CR1）通信，并且被配置为在所述多个频率中的至少一个频率上发送信号，其中所述源节点（CR1）和所述多个节点 适于使用所述多个节点中的至少一个中间节点（CR2）和所述多个频率的发射频率来确定路由路径，同时减少对所述发射频率的主用户的干扰。
-
7.发明申请公开(公告)号：US20100303026A1
公开(公告)日：2010-12-02
申请号：US12474886
申请日：2009-05-29
IPC分类号： H04W4/00
CPC分类号： H04W16/14 , H04W72/082 , H04W88/18
摘要： The application discloses a method and apparatus for dynamic spectrum allocation to a secondary communication system seeking to operate within the spectrum of a regulated primary communication system. The method includes clustering a plurality of secondary devices based on an operating frequency utilized by each of the secondary devices. The method then includes assigning sensing opportunities to the plurality of clustered secondary devices. The method then includes, receiving sensing information from each of the clustered secondary devices. The sensing information indicates at least one of an occupied channel frequency and an unoccupied channel frequency in the spectrum. The method further includes determining at least one spectrum opportunity, in the spectrum, that is unoccupied by each of a plurality of primary devices based on the received sensing information, and allocating the at least one spectrum opportunity to at least one of the secondary devices.
摘要翻译： 本申请公开了一种用于动态频谱分配给寻求在受调节的主要通信系统的频谱范围内操作的辅助通信系统的方法和装置。 该方法包括基于每个辅助设备使用的工作频率对多个辅助设备进行聚类。 该方法然后包括将感测机会分配给多个群集二次设备。 该方法然后包括从每个群集二次设备接收感测信息。 感测信息指示频谱中的占用信道频率和未占用信道频率中的至少一个。 该方法还包括基于所接收的感测信息来确定频谱中至少一个频谱机会，其中多个主设备中的每一个未占用，并且将至少一个频谱机会分配给至少一个辅助设备。
-
8.发明授权Method for optimizing spatial diversity gain of a set of nodes used for cooperative sensing 有权用于优化用于协同感测的一组节点的空间分集增益的方法公开(公告)号：US08160004B2
公开(公告)日：2012-04-17
申请号：US12494742
申请日：2009-06-30
申请人： Yadunandana N. Rao , Apoorv Chaudhri , Surhir Rao
发明人： Yadunandana N. Rao , Apoorv Chaudhri , Surhir Rao
IPC分类号： H04W4/00 , H04W72/00 , G06F15/177 , G06F15/173 , H04B7/02
CPC分类号： H04W16/14
摘要： A group of nodes used for sensing in a cooperative sensing communication system (100) are selected from nodes (104-112) associated with a base station (102) operating in secondary communication mode. The group has a spatial diversity gain, as determined by a cooperative sensing index (306) that initially meets a minimum threshold. To optimize the spatial diversity gain, nodes not in the initial set are individually added to the set (408), and the index is recomputed (608). The additional node having the highest effect on spatial diversity is added to the group (614). To maintain group size, each of the original nodes is individually removed from the group (706) and the index is recomputed (708) with each initial node removed to determine which of the initial nodes provided the smallest spatial gain contribution, and is removed from the group (714).
摘要翻译： 在与辅助通信模式中工作的基站（102）相关联的节点（104-112）中选择用于协作感测通信系统（100）中的感测的一组节点。 该组具有由初始满足最小阈值的协作感测索引（306）确定的空间分集增益。 为了优化空间分集增益，不在初始集合中的节点被单独地添加到集合（408），并且重新计算索引（608）。 将对空间分集具有最高影响的附加节点添加到组（614）。 为了保持组大小，从组（706）中单独地移除每个原始节点，并且重新计算（708）每个初始节点的索引，以确定哪些初始节点提供最小的空间增益贡献，并从 该组（714）。
-
9.发明授权Narrowband system and method for defining narrowband wideband channels in unused wideband channels 有权用于在未使用的宽带信道中定义窄带信道的窄带系统和方法公开(公告)号：US08107887B2
公开(公告)日：2012-01-31
申请号：US12394955
申请日：2009-02-27
IPC分类号： H04B17/00
摘要： A narrowband communication system (100) includes a base station (102) and a plurality of subscriber units (104). The base station assigns one or more wideband channels to be measured to each subscriber unit (606). The subscriber units tune to their assigned wideband channels and perform narrowband measurements, then report the results to the base station (612). The base station then analyzes the measurement results (614) and selects available wideband channels to be divided into narrowband channels for use by the narrowband system.
摘要翻译： 窄带通信系统（100）包括基站（102）和多个用户单元（104）。 基站向每个用户单元（606）分配要测量的一个或多个宽带信道。 用户单元调谐到其分配的宽带信道并执行窄带测量，然后将结果报告给基站（612）。 然后，基站分析测量结果（614）并选择可分割成窄带信道的可用宽带信道以供窄带系统使用。
-
10.发明授权System and method for performing communication in a wireless communication network 有权用于在无线通信网络中执行通信的系统和方法公开(公告)号：US07937101B2
公开(公告)日：2011-05-03
申请号：US11844624
申请日：2007-08-24
申请人： Robert J. Corke , Apoorv Chaudhri , Trefor J. Delve , Ralf Hekmann , Daniel G. Prysby , Yadunandana N. Rao , Christopher G. Ware , Michael F. Zeleznik
发明人： Robert J. Corke , Apoorv Chaudhri , Trefor J. Delve , Ralf Hekmann , Daniel G. Prysby , Yadunandana N. Rao , Christopher G. Ware , Michael F. Zeleznik
IPC分类号： H04B7/02 , H04B7/00 , H04B7/216 , H04B7/212 , H04L1/02 , H04L12/28 , H04L12/56 , H04W72/00 , H04W4/00 , H04W40/00 , H04J1/00
CPC分类号： H04W72/02 , H04W72/0453 , H04W84/08
摘要： A wireless communication network is provided in which a plurality of radio devices achieve frequency diversity. By utilizing cognitive capability within the radio devices to iteratively select frequency sets, a lowest cardinality frequency set is generated and used to communicate amongst the plurality of radio devices. Each radio device can have different hardware, as the iterative selection of frequency set can take into account the different hardware capabilities of the radio devices.
摘要翻译： 提供了一种无线通信网络，其中多个无线电设备实现频率分集。 通过利用无线电设备内的认知能力来迭代地选择频率集合，生成最低基数频率集合并用于在多个无线电设备之间进行通信。 每个无线电设备可以具有不同的硬件，因为频率集合的迭代选择可以考虑到无线电设备的不同硬件能力。
-
-
-
-
-
-
-
-
-
搜索结果
45 条记录 (耗时 0.019 秒)
