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21. 发明授权

US08223699B2 Method and apparatus for detecting and identifying spectrum opportunities 有权
标题翻译：用于检测和识别频谱机会的方法和装置
公开(公告)号：US08223699B2
公开(公告)日：2012-07-17
申请号：US11694808
申请日：2007-03-30
申请人： Yadunandana N. Rao , Apoorv Chaudhri , Robert J. Corke , Trefor J. Delve , Daniel G. Prysby , Christopher G. Ware , Michael F. Zeleznik
发明人： Yadunandana N. Rao , Apoorv Chaudhri , Robert J. Corke , Trefor J. Delve , Daniel G. Prysby , Christopher G. Ware , Michael F. Zeleznik
IPC分类号： H04W4/00 , H04W72/00
CPC分类号： H04W16/14 , H04Q2213/13098 , H04W48/16
摘要： A method (20,200) and apparatus (10) for detecting and identifying spectrum opportunities, including the steps of communicating a location of at least one node (12) to at least one base station (14) (24), transmitting a list of at least one channel from the at least one base station (14) to the at least one node (12) (26), and sensing the at least one channel from the list by the at least one node (12) (34). The method (20,200) also includes the steps of determining if the at least one channel is in use, and if the at least one channel is in use, determining the user of the at least one channel that is in use (38).
摘要翻译：一种用于检测和识别频谱机会的方法（20,200）和装置（10），包括将至少一个节点（12）的位置传送到至少一个基站（14）（24）的步骤，从所述至少一个基站（14）到所述至少一个节点（12）（26）的至少一个信道，以及由所述至少一个节点（12）（34）从所述列表感测所述至少一个信道。所述方法（20,200）还包括确定所述至少一个信道是否在使用中的步骤，以及如果所述至少一个信道正在使用中，则确定所述至少一个正在使用的信道的用户（38）。

22. 发明授权

US08155033B2 Opportunistic spectrum sensing optimization for a communication system 有权
标题翻译：通信系统的机会性频谱感知优化
公开(公告)号：US08155033B2
公开(公告)日：2012-04-10
申请号：US11946306
申请日：2007-11-28
申请人： Apoorv Chaudhri , Yadunandana N. Rao
发明人： Apoorv Chaudhri , Yadunandana N. Rao
IPC分类号： H04B7/005
CPC分类号： H04W16/14
摘要： A combination of subscriber clustering and link interleaving provides a cognitive radio system (CR) 100 with opportunities to sense an incumbent system's spectrum on secondary basis. The CR system (100) uses clustering to identify out-of-band channels. The CR system (100) uses link interleaving during a second mode of operation to sense and detect any incumbent (120) on in-band channels. A list of out-band channels are sensed by clusters (0, 1, 2, 3) sequentially to generate a ranked list of potential channels for future use by the CR system. These out-of-band channels can be used opportunistically in case of in-band incumbent detection.
摘要翻译：用户聚类和链路交织的组合为认知无线电系统（CR）100提供了次要的感知现有系统频谱的机会。 CR系统（100）使用聚类来识别带外信道。 CR系统（100）在第二操作模式期间使用链路交织来感测和检测带内信道上的任何现有（120）。簇（1，2，3）依次检测出带外信道的列表，以产生用于将来由CR系统使用的潜在信道的排序列表。在带内现场检测的情况下，这些带外频道可以机会地使用。

23. 发明授权

US08150328B2 Method and apparatus for distributed sensing management and control within a cognitive radio network 有权
标题翻译：认知无线电网络内分布式感知管理和控制的方法和装置
公开(公告)号：US08150328B2
公开(公告)日：2012-04-03
申请号：US12212101
申请日：2008-09-17
申请人： Apoorv Chaudhri , Oleg Andric , Yadunandana N. Rao
发明人： Apoorv Chaudhri , Oleg Andric , Yadunandana N. Rao
IPC分类号： H04B17/00
CPC分类号： H04W16/14 , H04W24/10 , H04W72/06
摘要： A technique for spectrum sensing management and control for a secondary communication system seeking to utilize another communication system's spectrum is provided (600). Sensor control data is sent from a base station to subscriber units (604). Sensing measurements are taken and sent back to the base station for ranking (608) as sensed feedback information. Comparisons of the sensed feedback information are made to each other and to thresholds aligned with the types of measurements taken (610). An initial ranked channel list is generated (612). Weighting of the initial ranking list and secondary ranking list is followed by re-ranking the channels according to the weighting into a final ranking list (612). The final ranking list is transmitted to the mobile units to enable operation within the other communication system's spectrum within interfering with that system (614). The weighting is based on the type of sensing measurement taken as opposed to the channel.
摘要翻译：提供了一种用于寻求利用另一种通信系统频谱的二次通信系统的频谱感测管理和控制技术（600）。传感器控制数据从基站发送到用户单元（604）。采集感测测量并将其发送回基站，以便将其作为检测到的反馈信息进行排序（608）。对所感测的反馈信息进行比较，并且与所采取的测量类型对准的阈值（610）。生成初始排名的频道列表（612）。初始排名表和次级排名表的加权之后，根据权重将信道重新排列成最终排名表（612）。最终排名列表被发送到移动单元以使得能够在干扰该系统的其它通信系统的频谱内进行操作（614）。加权取决于与通道相反的感测测量类型。

24. 发明授权

US07881726B2 Method and apparatus for spectrum sharing between an incumbent communications system and a cognitive radio system 有权
标题翻译：现有通信系统和认知无线电系统之间频谱共享的方法和装置
公开(公告)号：US07881726B2
公开(公告)日：2011-02-01
申请号：US11831601
申请日：2007-07-31
申请人： David P. Gurney , Apoorv Chaudhri , Yadunandana N. Rao , Matthew E. Simms
发明人： David P. Gurney , Apoorv Chaudhri , Yadunandana N. Rao , Matthew E. Simms
IPC分类号： H04Q7/20
CPC分类号： H04W16/14 , H04W24/04
摘要： Efficient frequency spectrum sharing between at least one incumbent communication system(s) (102, 152) and at least one cognitive radio (CR) system (105) is provided. The incumbent system's system parameters and CR system's operational requirements are copied to a mirrored database (106B). The mirrored database (106B) is controlled by a either a central authority (108) or a database manager having delegated authority (508). The mirrored database (106B) is accessed by the CR system (105). The mirrored database (106B) can be modified and updated by the central authority (108) or delegated database manager (508) to correct for interference detected in the incumbent system caused (152) by the cognitive radio system (105). The cognitive radio system (105) utilizes the updated mirrored database (106B) to avoid interfering with the incumbent system (102, 152) to determine CR system operating parameters thus enhancing the ability to share spectrum.
摘要翻译：提供至少一个现有通信系统（102,152）和至少一个认知无线电（CR）系统（105）之间的有效的频谱共享。现有系统的系统参数和CR系统的操作要求被复制到镜像数据库（106B）。镜像数据库（106B）由具有委托权限的中央管理机构（108）或数据库管理器（508）控制。镜像数据库（106B）由CR系统（105）访问。可以由中央管理机构（108）或委托的数据库管理器（508）修改和更新镜像数据库（106B），以校正由认知无线电系统（105）引起（152）在现有系统中检测到的干扰。认知无线电系统（105）利用更新的镜像数据库（106B）来避免干扰现有系统（102,152）来确定CR系统操作参数，从而提高共享频谱的能力。

25. 发明申请

US20090323835A1 METHOD AND APPARATUS FOR DETECTION OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) SIGNALS BY COGNITIVE RADIOS 有权
标题翻译：用于通过认知无线电探测正交频分复用（OFDM）信号的方法和装置
公开(公告)号：US20090323835A1
公开(公告)日：2009-12-31
申请号：US12165597
申请日：2008-06-30
申请人： Yadunandana N. Rao , Apoorv Chaudhri , Robert J. Corke
发明人： Yadunandana N. Rao , Apoorv Chaudhri , Robert J. Corke
IPC分类号： H04L27/28
CPC分类号： H04L5/0062 , H04L5/0007 , H04L27/0012
摘要： Efficient frequency spectrum sharing between at least one incumbent communication system(s) (102, 104) and at least one cognitive radio (CR) system (106, 108) is provided. The CR unit includes OFDM detection (216) for detecting the presence of OFDM signals which indicate the presence of an incumbent communication system within the shared spectrum. The CR system (106) updates channel occupancy information in response to the detected OFDM signals so as not to interfere with the incumbent communication systems (102, 104).
摘要翻译：提供了至少一个现有通信系统（102,104）和至少一个认知无线电（CR）系统（106,108）之间的有效的频谱共享。 CR单元包括用于检测表示共享频谱内现有通信系统的存在的OFDM信号的存在的OFDM检测（216）。 CR系统（106）响应于检测到的OFDM信号来更新信道占用信息，以便不干扰现有的通信系统（102,104）。

26. 发明申请

US20090034508A1 METHOD AND APPARATUS FOR SPECTRUM SHARING BETWEEN AN INCUMBENT COMMUNICATIONS SYSTEM AND A COGNITIVE RADIO SYSTEM 有权
标题翻译：无线通信系统与认证无线电系统之间的频谱分享方法与装置
公开(公告)号：US20090034508A1
公开(公告)日：2009-02-05
申请号：US11831601
申请日：2007-07-31
申请人： David P. Gurney , Apoorv Chaudhri , Yadunandana N. Rao , Matthew E. Simms
发明人： David P. Gurney , Apoorv Chaudhri , Yadunandana N. Rao , Matthew E. Simms
IPC分类号： H04L12/28
CPC分类号： H04W16/14 , H04W24/04
摘要： Efficient frequency spectrum sharing between at least one incumbent communication system(s) (102, 152) and at least one cognitive radio (CR) system (105) is provided. The incumbent system's system parameters and CR system's operational requirements are copied to a mirrored database (106B). The mirrored database (106B) is controlled by a either a central authority (108) or a database manager having delegated authority (508). The mirrored database (106B) is accessed by the CR system (105). The mirrored database (106B) can be modified and updated by the central authority (108) or delegated database manager (508) to correct for interference detected in the incumbent system caused (152) by the cognitive radio system (105). The cognitive radio system (105) utilizes the updated mirrored database (106B) to avoid interfering with the incumbent system (102, 152) to determine CR system operating parameters_thus enhancing the ability to share spectrum.
摘要翻译：提供至少一个现有通信系统（102,152）和至少一个认知无线电（CR）系统（105）之间的有效的频谱共享。现有系统的系统参数和CR系统的操作要求被复制到镜像数据库（106B）。镜像数据库（106B）由具有委托权限的中央管理机构（108）或数据库管理器（508）控制。镜像数据库（106B）由CR系统（105）访问。可以由中央管理机构（108）或委托的数据库管理器（508）修改和更新镜像数据库（106B），以校正由认知无线电系统（105）引起（152）在现有系统中检测到的干扰。认知无线电系统（105）利用更新的镜像数据库（106B）来避免干扰现有系统（102,152）来确定CR系统运行参数，这增加了共享频谱的能力。

27. 发明授权

US08451917B2 Method and apparatus for detection of orthogonal frequency division multiplexing (OFDM) signals by cognitive radios 有权
标题翻译：通过认知无线电检测正交频分复用（OFDM）信号的方法和装置
公开(公告)号：US08451917B2
公开(公告)日：2013-05-28
申请号：US12165597
申请日：2008-06-30
申请人： Yadunandana N. Rao , Apoorv Chaudhri , Robert J. Corke
发明人： Yadunandana N. Rao , Apoorv Chaudhri , Robert J. Corke
IPC分类号： H04K1/10
CPC分类号： H04L5/0062 , H04L5/0007 , H04L27/0012
摘要： Efficient frequency spectrum sharing between at least one incumbent communication system(s) (102, 104) and at least one cognitive radio (CR) system (106, 108) is provided. The CR unit includes OFDM detection (216) for detecting the presence of OFDM signals which indicate the presence of an incumbent communication system within the shared spectrum. The CR system (106) updates channel occupancy information in response to the detected OFDM signals so as not to interfere with the incumbent communication systems (102, 104).
摘要翻译：提供了至少一个现有通信系统（102,104）和至少一个认知无线电（CR）系统（106,108）之间的有效的频谱共享。 CR单元包括用于检测表示共享频谱内现有通信系统的存在的OFDM信号的存在的OFDM检测（216）。 CR系统（106）响应于检测到的OFDM信号来更新信道占用信息，以便不干扰现有的通信系统（102,104）。

28. 发明授权

US08204015B2 Method and apparatus for zone controller based dynamic spectrum allocation 有权
标题翻译：基于区域控制器的动态频谱分配方法和装置
公开(公告)号：US08204015B2
公开(公告)日：2012-06-19
申请号：US12474886
申请日：2009-05-29
申请人： Apoorv Chaudhri , Yadunandana N. Rao
发明人： Apoorv Chaudhri , Yadunandana N. Rao
IPC分类号： H04W4/00 , H04J1/00 , H04L12/413
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。

29. 发明授权

US08140085B2 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：US08140085B2
公开(公告)日：2012-03-20
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
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。

30. 发明授权

US08060104B2 Coexistence and incumbent protection in a cognitive radio network 有权
标题翻译：认知无线电网络中的共存和现有保护
公开(公告)号：US08060104B2
公开(公告)日：2011-11-15
申请号：US12131031
申请日：2008-05-30
申请人： Apoorv Chaudhri , David P. Gurney , Yadunandana N. Rao
发明人： Apoorv Chaudhri , David P. Gurney , Yadunandana N. Rao
IPC分类号： H04Q7/20
CPC分类号： H04W16/14 , H04W52/243 , H04W52/281 , H04W52/283 , H04W52/367 , H04W72/0453 , H04W72/0473
摘要： A method (300, 400) and a communication system (104, 106, 200) for dynamic RF spectrum allocation among a plurality of RF transmitters (108, 110, 112). A message can be received from a first communication system. The message can include a request (130) for available RF spectrum over which to transmit RF signals. The message can indicate a geographic location of a first non-incumbent transmitter (112) associated with the first communication system. Further, for the RF spectrum, a maximum power level can be determined at which the first non-incumbent transmitter may transmit without exceeding a threshold level of interference at least one focal point (134). A RF spectrum list (138) identifying at least the RF spectrum and the determined maximum power level can be communicated to the first communication system.
摘要翻译：一种用于多个RF发射机（108,110,112）中的动态RF频谱分配的方法（300,400）和通信系统（104,106,200）。可以从第一通信系统接收消息。消息可以包括用于发射RF信号的可用RF频谱的请求（130）。该消息可以指示与第一通信系统相关联的第一非现在发射机（112）的地理位置。此外，对于RF频谱，可以确定第一非现在发射机可以在哪个第一非现在发射机可以在不超过至少一个焦点（134）处的阈值干扰电平的情况下发射的最大功率电平。识别至少RF频谱和确定的最大功率电平的RF频谱列表（138）可被传送到第一通信系统。

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