公开(公告)号：US08838162B2

公开(公告)日：2014-09-16

申请号：US13384447

申请日：2010-07-15

申请人： Chen Sun ,  Yohannes Alemseged Demessie ,  Ha Nguyen Tran ,  Hiroshi Harada

发明人： Chen Sun ,  Yohannes Alemseged Demessie ,  Ha Nguyen Tran ,  Hiroshi Harada

IPC分类号： H04B7/00 ,  H04W52/24

CPC分类号： H04W52/241 ,  H04W52/12 ,  H04W52/243

摘要： Provided is a power control method, etc., in cognitive radio communication, by which power control can be effectively performed without a large indirect cost. In the power control method, a target value of SNR is estimated on the basis of the control information relating to interference. Subsequently, communication power used for the cognitive radio communication is adjusted on the basis of the estimated target value of SNR. Thereby, power control can be effectively performed without a large indirect cost.

摘要翻译： 提供了一种在认知无线电通信中的功率控制方法等，可以在没有大的间接成本的情况下有效地执行功率控制。 在功率控制方法中，根据与干扰有关的控制信息来估计SNR的目标值。 随后，基于估计的SNR的目标值来调整用于认知无线电通信的通信功率。 由此，可以有效地执行功率控制，而不需要大的间接成本。

公开(公告)号：US20120135772A1

公开(公告)日：2012-05-31

申请号：US13383982

申请日：2010-07-12

申请人： Yohannes Alemseged Demessie ,  Ha Nguyen Tran ,  Chen Sun ,  Hiroshi Harada

发明人： Yohannes Alemseged Demessie ,  Ha Nguyen Tran ,  Chen Sun ,  Hiroshi Harada

IPC分类号： H04W72/04

CPC分类号： H04W16/14

摘要： In a cognitive radio communication device, before a communication link for the cognitive radio communication is established, a control channel which is a common channel which can be used by a plurality of cognitive radio communication devices is detected. By exchanging sensing information and sensing control information among the plurality of radio communication devices using the detected common channel, the information is shared. The plurality of cognitive radio communication devices share the sensing information and the sensing control information, and use the information for determining a channel used for spectrum monitoring and data communication, and the like.

摘要翻译： 在认知无线电通信装置中，在认知无线电通信的通信链路建立之前，检测作为多个认知无线电通信装置可以使用的公共信道的控制信道。 通过使用所检测的公共信道在多个无线电通信装置之间交换感测信息和感测控制信息，共享该信息。 多个认知无线电通信装置共享感测信息和感测控制信息，并且使用用于确定用于频谱监视和数据通信的信道的信息等。

公开(公告)号：US08874152B2

公开(公告)日：2014-10-28

申请号：US13580379

申请日：2011-02-22

申请人： Chen Sun ,  Ha Nguyen Tran ,  Yohannes Alemseged Demessie ,  Hiroshi Harada

发明人： Chen Sun ,  Ha Nguyen Tran ,  Yohannes Alemseged Demessie ,  Hiroshi Harada

IPC分类号： H04B15/00 ,  H04W16/14 ,  H04W72/08

CPC分类号： H04W16/14 ,  H04W72/082

摘要： Disclosed is a wireless communication system capable of avoiding interference even when a network including a secondary user coexists. The wireless communication system includes a primary user belonging to a first network, a first secondary user belonging to a second network, and a coexistence manager (CM). The coexistence manager (CM) acquires information relating to spectrum holes that are, at least temporarily, not in use by the primary user. In addition, the coexistence manager (CM) determines whether or not usage of the spectrum holes by the first secondary user causes interference. If the determination result is that interference is caused, coexistence manager (CM) notifies to this effect a second secondary user belonging to a third network, which differs from the second network.

摘要翻译： 公开了即使当包括次要用户的网络共存时也能够避免干扰的无线通信系统。 无线通信系统包括属于第一网络的主用户，属于第二网络的第一辅助用户，以及共存管理器（CM）。 共存管理器（CM）获取与至少暂时不被主要用户使用的频谱孔相关的信息。 此外，共存管理器（CM）确定第一次要用户的频谱孔的使用是否导致干扰。 如果确定结果是引起干扰，则共存管理器（CM）通知属于第三网络的与第二网络不同的第二次要用户。

公开(公告)号：US20120322476A1

公开(公告)日：2012-12-20

申请号：US13580379

申请日：2011-02-22

申请人： Chen Sun ,  Ha Nguyen Tran ,  Yohannes Alemseged Demessie ,  Hiroshi Harada

发明人： Chen Sun ,  Ha Nguyen Tran ,  Yohannes Alemseged Demessie ,  Hiroshi Harada

IPC分类号： H04B15/00 ,  H04W60/00 ,  H04W92/02

CPC分类号： H04W16/14 ,  H04W72/082

摘要： Disclosed is a wireless communication system capable of avoiding interference even when a network including a secondary user coexists. The wireless communication system includes a primary user belonging to a first network, a first secondary user belonging to a second network, and a coexistence manager (CM). The coexistence manager (CM) acquires information relating to spectrum holes that are, at least temporarily, not in use by the primary user. In addition, the coexistence manager (CM) determines whether or not usage of the spectrum holes by the first secondary user causes interference. If the determination result is that interference is caused, coexistence manager (CM) notifies to this effect a second secondary user belonging to a third network, which differs from the second network.

摘要翻译： 公开了即使当包括次要用户的网络共存时也能够避免干扰的无线通信系统。 无线通信系统包括属于第一网络的主用户，属于第二网络的第一辅助用户，以及共存管理器（CM）。 共存管理器（CM）获取与至少暂时不被主要用户使用的频谱孔相关的信息。 此外，共存管理器（CM）确定第一次要用户的频谱孔的使用是否导致干扰。 如果确定结果是引起干扰，则共存管理器（CM）通知属于第三网络的与第二网络不同的第二次要用户。

公开(公告)号：US20120135780A1

公开(公告)日：2012-05-31

申请号：US13384447

申请日：2010-07-15

申请人： Chen Sun ,  Yohannes Alemseged Demessie ,  Ha Nguyen Tran ,  Hiroshi Harada

发明人： Chen Sun ,  Yohannes Alemseged Demessie ,  Ha Nguyen Tran ,  Hiroshi Harada

IPC分类号： H04W52/24

CPC分类号： H04W52/241 ,  H04W52/12 ,  H04W52/243

摘要： Provided is a power control method, etc., in cognitive radio communication, by which power control can be effectively performed without a large indirect cost. In the power control method, a target value of SNR is estimated on the basis of the control information relating to interference. Subsequently, communication power used for the cognitive radio communication is adjusted on the basis of the estimated target value of SNR. Thereby, power control can be effectively performed without a large indirect cost.

摘要翻译： 提供了一种在认知无线电通信中的功率控制方法等，可以在没有大的间接成本的情况下有效地执行功率控制。 在功率控制方法中，根据与干扰有关的控制信息来估计SNR的目标值。 随后，基于估计的SNR的目标值来调整用于认知无线电通信的通信功率。 由此，可以有效地执行功率控制，而不需要大的间接成本。

公开(公告)号：US08917685B2

公开(公告)日：2014-12-23

申请号：US13635437

申请日：2011-03-15

申请人： Gabriel Porto Villardi ,  Chen Sun ,  Yohannes Alemseged Demessie ,  Ha Nguyen Tran ,  Hiroshi Harada

发明人： Gabriel Porto Villardi ,  Chen Sun ,  Yohannes Alemseged Demessie ,  Ha Nguyen Tran ,  Hiroshi Harada

IPC分类号： H04W4/00 ,  H04W16/14 ,  H04W28/04 ,  H04B7/212

CPC分类号： H04W16/14

摘要： Disclosed is a wireless communication system and the like that can avoid interference even if a plurality of networks coexist. The wireless communication system includes a primary user, cluster head equipment, and a secondary user. The cluster head equipment is for providing a local area network to a cluster region containing the abovementioned primary user. Also, the cluster head equipment contains: an acquisition means that acquires one or both—of information regarding the primary user and information regarding a primary signal—and the like; and a transmission means that transmits information to the secondary user. Then, using this wireless communication system, the secondary user performs cognitive wireless communication or the like on the basis of the information received from the transmission means of the cluster head equipment.

摘要翻译： 公开了即使多个网络共存也能够避免干扰的无线通信系统等。 无线通信系统包括主用户，群集头设备和次用户。 集群头设备用于向包含上述主用户的集群区域提供局域网。 此外，集群头设备包括：获取装置，其获取关于主用户的一个或两个信息以及关于主信号的信息等; 以及向第二用户发送信息的发送装置。 然后，使用该无线通信系统，次要用户根据从簇头设备的发送装置接收到的信息进行认知无线通信等。

公开(公告)号：US08849338B2

公开(公告)日：2014-09-30

申请号：US13384453

申请日：2010-07-16

申请人： Chen Sun ,  Yohannes Alemseged Demessie ,  Ha Nguyen Tran ,  Hiroshi Harada

发明人： Chen Sun ,  Yohannes Alemseged Demessie ,  Ha Nguyen Tran ,  Hiroshi Harada

IPC分类号： H04B7/00 ,  H04W16/14 ,  H04W72/08

CPC分类号： H04W16/14 ,  H04W72/082

摘要： There is disclosed a channel adjusting method capable of suppressing the occurrence of interference between a cognitive pilot channel (CPC) and an auxiliary control channel (ACS) in cognitive wireless communications. According to the channel adjusting method for use in cognitive wireless communications, initially, a connection using a cognitive pilot channel (CPC) is set up. Thereafter, it is determined whether or not a spectrum sensing channel (ACS) is to be utilized. If yes, it is then determined whether or not any interference occurs between the spectrum sensing channel (ACS) and the set-up cognitive pilot channel (CPC). This allows an adjustment to be performed such that no interference occurs between the cognitive pilot channel (CPC) and the spectrum sensing channel (ACS).

摘要翻译： 公开了能够抑制认知无线通信中的认知导频信道（CPC）与辅助控制信道（ACS）之间的干扰的发生的信道调整方法。 根据用于认知无线通信的信道调整方法，首先建立了使用认知导频信道（CPC）的连接。 此后，确定是否要使用频谱感测通道（ACS）。 如果是，则确定在频谱感测信道（ACS）和建立认知导频信道（CPC）之间是否发生任何干扰。 这允许执行调整，使得在认知导频信道（CPC）和频谱感测信道（ACS）之间不发生干扰。

公开(公告)号：US08724753B2

公开(公告)日：2014-05-13

申请号：US13386688

申请日：2010-07-21

申请人： Yohannes Alemseged Demessie ,  Chen Sun ,  Ha Nguyen Tran ,  Hiroshi Harada

发明人： Yohannes Alemseged Demessie ,  Chen Sun ,  Ha Nguyen Tran ,  Hiroshi Harada

IPC分类号： H04B7/10

CPC分类号： H04B1/7163 ,  H04W52/0229 ,  H04W88/06

摘要： Provided is a spectrum sensor for cognitive wireless communication whereby it is possible to improve communication efficiency. In a cognitive wireless communication system, a spectrum sensor senses spectra in multiple frequency bands. A spectrum sensor is configured to be able to operate in one operation mode selected from among a spectrum sensing mode for sensing spectra, and a communication mode for communicating with a wireless communication device. Further, the spectrum sensor is provided with a controller for controlling the operation mode. The controller switches between the above-mentioned operation modes during the symbol period of an ultra-wideband physical layer (UWB PHY).

摘要翻译： 提供了一种用于认知无线通信的频谱传感器，由此可以提高通信效率。 在认知无线通信系统中，频谱传感器感测多个频带中的频谱。 频谱传感器被配置为能够在从用于感测光谱的频谱感测模式中选择的一种操作模式中操作，以及用于与无线通信设备进行通信的通信模式。 此外，光谱传感器设置有用于控制操作模式的控制器。 控制器在超宽带物理层（UWB PHY）的符号周期期间在上述操作模式之间切换。

公开(公告)号：US20120140793A1

公开(公告)日：2012-06-07

申请号：US13386688

申请日：2010-07-21

申请人： Yohannes Alemseged Demessie ,  Chen Sun ,  Ha Nguyen Tran ,  Hiroshi Harada

发明人： Yohannes Alemseged Demessie ,  Chen Sun ,  Ha Nguyen Tran ,  Hiroshi Harada

IPC分类号： H04B1/69

CPC分类号： H04B1/7163 ,  H04W52/0229 ,  H04W88/06

摘要： Provided is a spectrum sensor for cognitive wireless communication whereby it is possible to improve communication efficiency. In a cognitive wireless communication system, a spectrum sensor senses spectra in multiple frequency bands. A spectrum sensor is configured to be able to operate in one operation mode selected from among a spectrum sensing mode for sensing spectra, and a communication mode for communicating with a wireless communication device. Further, the spectrum sensor is provided with a controller for controlling the operation mode. The controller switches between the above-mentioned operation modes during the symbol period of an ultra-wideband physical layer (UWB PHY).

摘要翻译： 提供了一种用于认知无线通信的频谱传感器，由此可以提高通信效率。 在认知无线通信系统中，频谱传感器感测多个频带中的频谱。 频谱传感器被配置为能够在从用于感测光谱的频谱感测模式中选择的一种操作模式中进行操作，以及用于与无线通信设备进行通信的通信模式。 此外，光谱传感器设置有用于控制操作模式的控制器。 控制器在超宽带物理层（UWB PHY）的符号周期期间在上述操作模式之间切换。

公开(公告)号：US09049648B2

公开(公告)日：2015-06-02

申请号：US12889798

申请日：2010-09-24

申请人： Kentaro Ishizu ,  Homare Murakami ,  Goh Miyamoto ,  Ha Nguyen Tran ,  Stanislav Filin ,  Chen Sun ,  Yohannes Alemseged Demessie ,  Hiroshi Harada

发明人： Kentaro Ishizu ,  Homare Murakami ,  Goh Miyamoto ,  Ha Nguyen Tran ,  Stanislav Filin ,  Chen Sun ,  Yohannes Alemseged Demessie ,  Hiroshi Harada

IPC分类号： H04W4/00 ,  H04W48/18 ,  H04L5/00 ,  H04B7/005 ,  H04W24/00 ,  H04W48/10

CPC分类号： H04W48/18 ,  H04B7/005 ,  H04L5/0032 ,  H04L5/0035 ,  H04L5/0064 ,  H04L5/0092 ,  H04W24/00 ,  H04W48/10

摘要： Object: To provide a mechanism and a function of a system that can determine a communication method and the like effectively utilizing frequency resources, considering priority of each communication, in a cognitive communication network system of a frequency shared type or the like assuming that a given frequency band is shared by a plurality of systems in use.Solution: In a configuration in which a cognitive communication network system has a plurality of radio access networks 23 and a superior communication network 10 that provides a common platform at least to the radio access networks, in a plurality of base stations 23a on at least a part of the radio access network 23, base-station state obtaining means 232 that collect information relating to a state of the base station itself in the base station or a communication state and base-station communication reconfiguration managing means 231 that reconfigure at least one of either a selection of the base station to be used in the communication or a communication condition in the base station on the basis of the information collected by the base-station state obtaining means are provided.

摘要翻译： 对象：提供一种系统的机制和功能，可以在频率共享类型的认知通信网络系统等中考虑每个通信的优先级，有效地利用频率资源来确定通信方法等，假定给定 频带由正在使用的多个系统共享。 解决方案：在认知通信网络系统具有多个无线电接入网络23和至少向无线电接入网络提供公共平台的优越通信网络10的配置中，在多个基站23a中至少一个 无线电接入网络23的一部分，基站状态获取装置232，其收集与基站中的基站本身的状态有关的信息或通信状态，以及基站通信重配置管理装置231，其重新配置以下各项中的至少一个： 提供基于由基站状态获取装置收集的信息来选择要在通信中使用的基站或基站中的通信条件。