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1. 发明申请

US20100137014A1 METHOD TO IMPROVE DIVERSITY GAIN IN A COOPERATIVE SPECTRUM SENSING NETWORK 有权
标题翻译：提高合作频谱感知网络中多样性增益的方法
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。

2. 发明申请

US20100103924A1 METHOD AND SYSTEM FOR WIRELESS MULTI-HOPPING COMMUNICATION 有权
标题翻译：无线多路通信通信方法与系统
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

US08135424B2 Method to improve diversity gain in a cooperative spectrum sensing network 有权
标题翻译：提高合作频谱感知网络分集增益的方法
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
IPC分类号： H04B7/00 , H04B15/00
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。

4. 发明授权

US08160004B2 Method for optimizing spatial diversity gain of a set of nodes used for cooperative sensing 有权
标题翻译：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）。

5. 发明授权

US08107887B2 Narrowband system and method for defining narrowband wideband channels in unused wideband channels 有权
标题翻译：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
申请人： Yadunandana N. Rao , Apoorv Chaudhri , Geetha K. Thampi
发明人： Yadunandana N. Rao , Apoorv Chaudhri , Geetha K. Thampi
IPC分类号： H04B17/00
CPC分类号： H04W24/10 , H04W8/005 , H04W16/14 , H04W64/00 , H04W72/00 , H04W72/04
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。

6. 发明授权

US07937101B2 System and method for performing communication in a wireless communication network 有权
标题翻译：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。

7. 发明申请

US20100329180A1 METHOD FOR OPTIMIZING SPATIAL DIVERSITY GAIN OF A SET OF NODES USED FOR COOPERATIVE SENSING 有权
标题翻译：用于合作感知的一组节点优化空间多样性的方法
公开(公告)号：US20100329180A1
公开(公告)日：2010-12-30
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： H04W84/02
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，并且重新计算索引（708），每个初始节点被去除以确定哪些初始节点提供最小的空间增益贡献，并且从该组（714）。

8. 发明申请

US20100248631A1 DYNAMIC SPECTRUM ALLOCATION (DSA) IN A COMMUNICATION NETWORK 有权
标题翻译：通信网络中的动态频谱分配（DSA）
公开(公告)号：US20100248631A1
公开(公告)日：2010-09-30
申请号：US12414642
申请日：2009-03-30
申请人： Apoorv Chaudhri , Yadunandana N. Rao
发明人： Apoorv Chaudhri , Yadunandana N. Rao
IPC分类号： H04B17/00
CPC分类号： H04W72/06 , H04W16/10 , H04W16/14 , H04W28/18
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）。

9. 发明申请

US20100081449A1 METHOD AND APPARATUS FOR OPTIMIZING SPECTRUM UTILIZATION BY A COGNITIVE RADIO NETWORK 有权
标题翻译：通过认知无线电网络优化频谱利用的方法和装置
公开(公告)号：US20100081449A1
公开(公告)日：2010-04-01
申请号：US12241821
申请日：2008-09-30
申请人： Apoorv Chaudhri , David P. Gurney , Stephen L. Kuffner , Yadunandana N. Rao , Matthew E. Simms
发明人： Apoorv Chaudhri , David P. Gurney , Stephen L. Kuffner , Yadunandana N. Rao , Matthew E. Simms
IPC分类号： H04W72/00 , H04W72/08 , H04W72/06
CPC分类号： H04W72/082 , H04W4/02 , H04W8/205 , H04W16/14 , H04W48/20 , H04W72/02
摘要： A technique for a secondary communication system to utilize spectrum designated to another (or primary) communication system is provided. By ranking a plurality of secondary base stations based on base station transmit power, calculated required transmit power and path loss, a set of criteria is developed for selecting a highest ranked secondary base station for operation within a primary's spectrum. The ranking may be adapted based on mobility of the secondary's subscriber; and as such the secondary system communicates within the primary's spectrum using the adaptively ranked base stations. Channel selection may also be ranked. The technique and apparatus allows a cognitive radio (CR) network to operate within an incumbent network's spectrum.
摘要翻译：提供了一种次要通信系统利用指定给另一（通信）通信系统的频谱的技术。通过基于基站发射功率，计算的所需发射功率和路径损耗对多个次基站进行排序，开发了用于选择最高等级次级基站以在主频谱内操作的一组标准。可以基于辅助用户的移动性来调整排名; 并且因此次级系统使用自适应排名的基站在主频谱内进行通信。频道选择也可能被排名。该技术和装置允许认知无线电（CR）网络在现有网络的频谱范围内运行。

10. 发明授权

US08295893B2 System and method for managing power consumption in a device 有权
标题翻译：用于管理设备中的功耗的系统和方法
公开(公告)号：US08295893B2
公开(公告)日：2012-10-23
申请号：US12879053
申请日：2010-09-10
申请人： Yadunandana N. Rao , Scott M. Alazraki , Apoorv Chaudhri
发明人： Yadunandana N. Rao , Scott M. Alazraki , Apoorv Chaudhri
IPC分类号： H04B1/38 , H04M1/00
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。

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