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31. 发明授权

US06788731B2 Flexible correlation and queueing in CDMA communication systems 有权
标题翻译： CDMA通信系统中的灵活相关和排队
公开(公告)号：US06788731B2
公开(公告)日：2004-09-07
申请号：US10133149
申请日：2002-04-26
申请人： Yun Kim , David P. Gurney , Anthony R. Schooler , Zhuan Ye
发明人： Yun Kim , David P. Gurney , Anthony R. Schooler , Zhuan Ye
IPC分类号： H04L2730
CPC分类号： G06F17/15 , H04B1/707 , H04B1/7095 , H04B2201/709727
摘要： A programmable correlator for a communication system includes an input queue coupled with an analog-to-digital converter (ADC). The input queue includes a random access memory (RAM) wherein sampled data streams from the ADC are written into the RAM. The input queue has two banks of memory of width 2M. A flexible complex correlator is operable on M samples. The correlator is coupled to read M complex samples out of 2M samples from the input queue. A pseudo-noise (PN) crossbar unit operates to rotate a generated PN code to match a rotation of the input queue data in the complex correlator.
摘要翻译：用于通信系统的可编程相关器包括与模数转换器（ADC）耦合的输入队列。输入队列包括随机存取存储器（RAM），其中来自ADC的采样数据流被写入RAM。输入队列具有宽度为2M的两组存储器。灵活的复相关器可在M个样本上操作。相关器被耦合以从输入队列中读取2M个样本中的M个复杂样本。伪噪声（PN）交叉单元操作以旋转所产生的PN码以匹配复相关器中的输入队列数据的旋转。

32. 发明授权

US08903442B2 System and method for maintaining a backup radio operating parameter list in a secondary use communication system 有权
标题翻译：在二次使用通信系统中维护备用无线电操作参数列表的系统和方法
公开(公告)号：US08903442B2
公开(公告)日：2014-12-02
申请号：US13605654
申请日：2012-09-06
申请人： Ramandeep Ahuja , David P. Gurney
发明人： Ramandeep Ahuja , David P. Gurney
IPC分类号： H04B7/00 , H04L12/24 , H04W12/08 , H04W48/00 , H04W16/14 , H04W28/18 , H04W4/02
CPC分类号： H04W12/08 , H04L41/0681 , H04L41/12 , H04W4/02 , H04W16/14 , H04W28/18 , H04W48/00
摘要： A radio communication system (100) provides a radio air interface at a master node (102) for subscriber units associated with the master node. Among the subscriber units are several slave nodes (104, 106). The communication system has the ability to operate as a secondary user in unused spectrum portions of a frequency band otherwise reserved for primary operators. The master node accesses an authorization server (108) to obtain a list of unused channels in the region of the master node. Each slave node also contacts the authorization server to obtain a list of unused channels in the region where each respective slave node is located, via another network (118, 121). The unused channels common to the slave nodes and the master node are used to create a backup radio operating parameter list which is used by the master node if a fault occurs between the master node the authorization server.
摘要翻译：无线电通信系统（100）在与主节点相关联的用户单元的主节点（102）处提供无线电空中接口。在用户单元中有几个从节点（104,106）。通信系统具有作为次要用户操作的功能，该频段的频段的未使用频谱部分被保留给主要操作者。主节点访问授权服务器（108）以获得主节点区域中的未使用信道的列表。每个从节点还通过另一网络（118,121）与授权服务器联系以获得每个相应从节点所在区域中的未使用信道的列表。从节点和主节点共同使用的未使用的通道用于创建主节点授权服务器之间发生故障时主节点使用的备用无线电操作参数列表。

33. 发明授权

US08660498B2 Method for database driven channel quality estimation in a cognitive radio network 有权
标题翻译：认知无线电网络中数据库驱动信道质量估计的方法
公开(公告)号：US08660498B2
公开(公告)日：2014-02-25
申请号：US12493886
申请日：2009-06-29
申请人： David P. Gurney , Stephen L. Kuffner
发明人： David P. Gurney , Stephen L. Kuffner
IPC分类号： H04B17/00
CPC分类号： H04W52/367 , H04W16/14 , H04W52/228 , H04W52/243 , H04W52/281 , H04W52/283 , H04W72/082 , H04W72/10
摘要： A method of determining operating parameters for a secondary system transmitter is described. The transmitter characteristics, including location and operating frequency band, are provided to a geo-location database. The database determines the maximum allowable transmission power that meets various specifications for different channels and conveys the power and channel(s) to the transmitter. The database estimates channel incumbent signal strengths based on the transmitter location and primary and higher-priority secondary incumbent systems, estimates the splatter levels, determines whether adjacent and co-channel interference protection ratios are met, and adjusts the allowable power level accordingly. The database also estimates aggregate co- and adjacent channel primary and secondary incumbent system interference levels at the transmitter location and predicts channel quality for each allowable channel. The estimated levels are updated using measurements of actual levels at the transmitter location. The database dynamically allocates channels using the secondary system priorities.
摘要翻译：描述了确定次系统发射机的操作参数的方法。发射机特性，包括位置和工作频段，提供给地理位置数据库。数据库确定满足不同通道的各种规格的最大允许传输功率，并将功率和通道传送到发射机。数据库估计基于发射机位置和主要和更高优先级的次要现有系统的现有信号强度，估计飞溅电平，确定是否满足相邻和同频道干扰保护比，并相应地调整容许功率电平。数据库还估计在发射机位置处的总共和相邻信道主要和次要现有系统干扰电平，并且预测每个允许信道的信道质量。使用测量发射机位置的实际电平来更新估计电平。数据库使用辅助系统优先级动态分配通道。

34. 发明授权

US08589359B2 Method and apparatus for automatically ensuring consistency among multiple spectrum databases 有权
标题翻译：自动确保多个频谱数据库的一致性的方法和装置
公开(公告)号：US08589359B2
公开(公告)日：2013-11-19
申请号：US12889016
申请日：2010-09-23
申请人： David P. Gurney
发明人： David P. Gurney
IPC分类号： G06F17/30
CPC分类号： G06F17/30592 , G06F17/30442
摘要： An apparatus and method of providing accurate and consistent open spectrum results for secondary devices from different geo-location databases is presented. The results, which may be independently derived by each database, are independent of the database queried. The comparison permits some amount of latitude in spatial and temporal consistency between the databases as errors are only indicated if the temporal or spatial discrepancies are pervasive. In addition, large percentages of different locations showing discrepancies when compared also lead to corrective action being taken. Corrective actions that may be taken include forcing problematic databases to update, shunting requests by secondary devices in the problematic locations to acceptable databases or shutting down the problematic databases entirely.
摘要翻译：提出了一种为来自不同地理位置数据库的辅助设备提供准确一致的开放频谱结果的设备和方法。可能由每个数据库独立派生的结果与查询的数据库无关。该比较允许在数据库之间的空间和时间一致性的一定程度的纬度，因为仅当时间或空间差异是普遍的时才指示错误。此外，当比较时显示差异的不同位置的大百分比也导致采取纠正措施。可能采取的纠正措施包括强制有问题的数据库更新，将有问题的二级设备的请求分流到可接受的数据库，或完全关闭有问题的数据库。

35. 发明授权

US08254844B2 Method and apparatus for utilizing a transmission polarization to reduce interference with a primary incumbent signal 有权
标题翻译：用于利用透射极化以减少对初级在线信号的干扰的方法和装置
公开(公告)号：US08254844B2
公开(公告)日：2012-08-28
申请号：US12475004
申请日：2009-05-29
申请人： Stephen L. Kuffner , Gregory J. Buchwald , David P. Gurney
发明人： Stephen L. Kuffner , Gregory J. Buchwald , David P. Gurney
IPC分类号： H04B1/00 , H04B15/00
CPC分类号： H04B7/10 , H04B17/318
摘要： A mobile station (104) operates in a region where an incumbent operator (110) is transmitting. The secondary station transmits at a frequency similar to that of the incumbent operator's signal. The incumbent operator transmits using a particular polarization (113). To reduce interference, the secondary station selects one of a plurality of antennas of the secondary station which has a low matching polarization with that of the incumbent signal.
摘要翻译：移动台（104）在现有操作员（110）正在发送的区域中操作。次站以与现有操作员的信号相似的频率发送。现任操作员使用特定的偏振（113）进行发送。为了减少干扰，次站选择具有低匹配偏振的次站的多个天线中的一个与现有信号的天线相匹配。

36. 发明授权

US08213954B2 Method for addressing user location errors in a cognitive radio system 有权
标题翻译：在认知无线电系统中解决用户位置错误的方法
公开(公告)号：US08213954B2
公开(公告)日：2012-07-03
申请号：US11845940
申请日：2007-08-28
申请人： David P. Gurney , Wayne W. Chiou , Randy L. Ekl , Douglas H. Weisman
发明人： David P. Gurney , Wayne W. Chiou , Randy L. Ekl , Douglas H. Weisman
IPC分类号： H04W24/00
CPC分类号： H04W16/14 , H04W24/02
摘要： A cognitive radio (CR) system (102) includes CR units (108, 110) that determine and update location-based system operating parameters to avoid interference with other systems operating in the same frequency band. Operational Location Uncertainty region and Allowed Location Error regions can be applied. The CR unit trades off between both, available channels and maximum system operating parameters, such that as Location Uncertainty of the CR device increases, available CR channels and location-based CR system operating parameters decrease over a maximum network reach.
摘要翻译：认知无线电（CR）系统（102）包括CR单元（108,110），其确定和更新基于位置的系统操作参数，以避免与在相同频带中工作的其他系统的干扰。操作位置不确定区域和允许位置错误区域可以应用。 CR单元在两个可用信道和最大系统操作参数之间进行交易，使得当CR设备的位置不确定性增加时，可用CR信道和基于位置的CR系统操作参数在最大网络范围内减小。

37. 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。

38. 发明申请

US20100238798A1 SYSTEM AND METHOD FOR MAINTAINING A BACKUP RADIO OPERATING PARAMETER LIST IN A SECONDARY USE COMMUNICATION SYSTEM 有权
标题翻译：在二次使用通信系统中维护备份无线电操作参数表的系统和方法
公开(公告)号：US20100238798A1
公开(公告)日：2010-09-23
申请号：US12409472
申请日：2009-03-23
申请人： Ramandeep Ahuja , David P. Gurney
发明人： Ramandeep Ahuja , David P. Gurney
IPC分类号： H04W24/00 , H04B17/00 , H04L12/26 , H04J1/16 , G06F11/00
CPC分类号： H04W12/08 , H04L41/0681 , H04L41/12 , H04W4/02 , H04W16/14 , H04W28/18 , H04W48/00
摘要： A radio communication system (100) provides a radio air interface at a master node (102) for subscriber units associated with the master node. Among the subscriber units are several slave nodes (104, 106). The communication system has the ability to operate as a secondary user in unused spectrum portions of a frequency band otherwise reserved for primary operators, such as licensed broadcasters. The master node accesses an authorization server (108) to obtain a list of unused channels in the region of the master node. Each slave node also contacts the authorization server to obtain a list of unused channels in the region where each respective slave node is located, via another network (118, 121). The unused channels common to the slave nodes and the master node are used to create a backup radio operating parameter list which is used by the master node if a fault occurs between the master node the authorization server.
摘要翻译：无线电通信系统（100）在与主节点相关联的用户单元的主节点（102）处提供无线电空中接口。在用户单元中有几个从节点（104,106）。通信系统具有作为次要用户操作的能力，在频带的未使用频谱部分中，否则为主要运营商（例如许可广播者）保留。主节点访问授权服务器（108）以获得主节点区域中的未使用信道的列表。每个从节点还通过另一网络（118,121）与授权服务器联系以获得每个相应从节点所在区域中的未使用信道的列表。从节点和主节点共同使用的未使用的通道用于创建主节点授权服务器之间发生故障时主节点使用的备用无线电操作参数列表。

39. 发明申请

US20090197627A1 METHOD AND APPARATUS FOR CONTROLLING TRANSMIT POWER AND INCUMBENT PROTECTION IN A COGNITIVE RADIO SYSTEM 有权
标题翻译：用于控制发射功率的方法和装置和认知无线电系统中的有害保护
公开(公告)号：US20090197627A1
公开(公告)日：2009-08-06
申请号：US12024311
申请日：2008-02-01
申请人： Stephen L. Kuffner , Lawrence M. Ecklund , David P. Gurney
发明人： Stephen L. Kuffner , Lawrence M. Ecklund , David P. Gurney
IPC分类号： H04B7/00
CPC分类号： H04W52/30 , H04W16/14 , H04W52/243
摘要： A cognitive radio (CR) device (208 and/or 218) avoids interference with an incumbent (207) receiver by determining maximum allowed transmit power levels of the CR device based on estimates of the incumbent signal level and transmit splatter levels of the CR device. The CR device (208 and/or 218) avoids interference with the incumbent receiver while transmitting with maximum transmit power levels.
摘要翻译：认知无线电（CR）设备（208和/或218）通过基于现有信号电平的估计和CR设备的发射分散电平来确定CR设备的最大允许发射功率电平来避免对现有（207）接收机的干扰。 CR设备（208和/或218）在以最大发射功率电平发送的同时避免对现有接收机的干扰。

40. 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。

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