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

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）。

2. 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。

3. 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。

4. 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）。

5. 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）。

6. 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。

7. 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。

8. 发明授权

US06842432B2 Method for allocating channel resources in a distributed control channel system 有权
标题翻译：在分布式控制信道系统中分配信道资源的方法
公开(公告)号：US06842432B2
公开(公告)日：2005-01-11
申请号：US10315902
申请日：2002-12-10
申请人： Darrell James Stogner , Robert D. Logalbo , Scott M. Alazraki , Apoorv Chaudhri , Alan P. Conrad , Stan Jelavic
发明人： Darrell James Stogner , Robert D. Logalbo , Scott M. Alazraki , Apoorv Chaudhri , Alan P. Conrad , Stan Jelavic
IPC分类号： H04J3/16 , H04W72/04 , H04W72/12 , H04Q11/00
CPC分类号： H04W72/042 , H04J3/1682 , H04W4/06 , H04W8/26
摘要： An outbound message (200) identifies a slot type associated with each timeslot in a scheduling period. In one embodiment, the outbound message further identifies at least an address of a first subscriber group assigned to transmit in a first timeslot (206) if the slot type of the first timeslot is of a first type and an address of a second subscriber group assigned to transmit in a second timeslot (208) if the slot type of the second timeslot is of a second type, wherein the first type and the second type could be the same or different. In a second embodiment, the outbound message further identifies at least a group address associated with a plurality of subscriber units assigned to transmit in a first timeslot if the slot type of the first timeslot is of a first type. In yet a third embodiment, the outbound message further identifies an address of a first subscriber group assigned to transmit in a first timeslot if the slot type of the first timeslot is of the first type, and a second timeslot (210) of a second type.
摘要翻译：出站消息（200）在调度周期中识别与每个时隙相关联的时隙类型。在一个实施例中，如果第一时隙的时隙类型是第一类型，并且分配了第二用户组的地址，则出站消息进一步标识分配给在第一时隙（206）中发送的第一用户组的至少一个地址如果第二时隙的时隙类型是第二类型，则在第二时隙（208）中发送，其中第一类型和第二类型可以相同或不同。在第二实施例中，如果第一时隙的时隙类型是第一类型，则所述出站消息进一步标识与分配给在第一时隙中发送的多个订户单元相关联的组地址。在第三实施例中，如果第一时隙的时隙类型是第一类型，则出站消息进一步标识分配给在第一时隙中发送的第一用户组的地址，以及第二类型的第二时隙（210）。

9. 发明授权

US08768371B2 Method and apparatus for optimizing spectrum utilization by a cognitive radio network 有权
标题翻译：用于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：US08768371B2
公开(公告)日：2014-07-01
申请号：US13368104
申请日：2012-02-07
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
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，所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的辅助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

US08401030B2 Allocation of channels in a dedicated frequency spectrum on a secondary basis 有权
标题翻译：在专用频谱中进行次级分配信道
公开(公告)号：US08401030B2
公开(公告)日：2013-03-19
申请号：US12330037
申请日：2008-12-08
申请人： Apoorv Chaudhri , David P. Gurney , Roberto A. Perez , Yadunandana N. Rao
发明人： Apoorv Chaudhri , David P. Gurney , Roberto A. Perez , Yadunandana N. Rao
IPC分类号： H04W72/04 , H04M1/00
CPC分类号： H04W72/0406 , H04W28/06 , H04W52/0238 , H04W76/14 , H04W92/18 , Y02D70/1224 , Y02D70/1262 , Y02D70/142 , Y02D70/146 , Y02D70/164
摘要： Allocation of channels in a dedicated frequency spectrum on a secondary basis. A direct mode communication request (150) from a first wireless communication device (112) can be received and processed to determine whether there are one or more secondary communication channels over which direct mode communication may be implemented between the first wireless communication devices and other wireless communication devices (114, 116, 118) without violating at least one communication policy for the secondary communication channel. Use of a secondary communication channel can be assigned or denied. In addition, a direct mode communication request can be communicated from a wireless communication device to a base transceiver station (104) identifying one or more other communication devices for which direct mode communication is requested.
摘要翻译：在专用频谱中进行次级分配信道。可以接收并处理来自第一无线通信设备（112）的直接模式通信请求（150）并确定是否存在可以在第一无线通信设备和其他无线通信设备之间实现直接模式通信的一个或多个次要通信信道通信设备（114,116,118），而不违反用于次要通信信道的至少一个通信策略。可以分配或拒绝使用辅助通信通道。此外，直接模式通信请求可以从无线通信设备传送到识别要求直接模式通信的一个或多个其他通信设备的基站收发器（104）。

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