公开(公告)号：US20150085784A1

公开(公告)日：2015-03-26

申请号：US14398236

申请日：2013-04-29

Applicant: Nokia Solutions and Networks Oy

Inventor： Ling Yu ,  Kari Veikko Horneman

IPC: H04W72/04 ,  H04W76/02

CPC classification number: H04W72/0406 ,  H04B2201/692 ,  H04W16/14 ,  H04W72/042 ,  H04W72/0453 ,  H04W76/10

Abstract: A technique, comprising: controlling a radio transmitter or radio transceiver of a device of a first radio system to transmit to a second radio system information about use of at least one radio resource for one or more transmissions outside the control of the second radio system, wherein said at least one radio resource is also usable for transmissions controlled by the second radio system.

Abstract translation: 一种技术，包括：控制第一无线电系统的设备的无线电发射机或无线电收发机以向第二无线电系统发送关于对第二无线电系统的控制之外的一个或多个传输的至少一个无线电资源的使用的信息， 其中所述至少一个无线电资源也可用于由第二无线电系统控制的传输。

公开(公告)号：US20120163508A1

公开(公告)日：2012-06-28

申请号：US12979133

申请日：2010-12-27

Applicant: STEPHEN L. KUFFNER ,  LAWRENCE M. ECKLUND

Inventor： STEPHEN L. KUFFNER ,  LAWRENCE M. ECKLUND

IPC: H04L27/04 ,  H04L27/06

CPC classification number: H04L27/06 ,  H04B2201/692 ,  H04L27/0006 ,  H04L27/04 ,  H04L27/364 ,  H04W16/14

Abstract: Communication devices and methods for transmitting and receiving a wideband signal using aggregated discontiguous narrowband channels in a band are presented. During transmission, a fold point is determined in which symmetric free channels are sufficient to transmit the signal. The signal is then synthesized by aggregating the data in the channels and transmitted using the fold point as the up-conversion modulation frequency. During reception, information regarding which channels are being used to provide data signals and which channels are occupied by interferers is received. This information is used to determine one or more fold points as the down-conversion modulation frequencies. The fold points are selected such that an image of each interferer falls on an unoccupied channel or a narrowband channel occupied by another interferer.

Abstract translation: 提出了使用频带中聚合的不连续窄带信道发送和接收宽带信号的通信设备和方法。 在传输期间，确定一个折叠点，其中对称的自由信道足以传输该信号。 然后通过聚合信道中的数据并使用折点作为上转换调制频率来发送该信号。 在接收期间，接收关于哪些信道被用于提供数据信号的信息以及哪些信道被干扰源占用。 该信息用于确定一个或多个折点作为下转换调制频率。 选择折点使得每个干扰源的图像落在未被占用的信道或由另一干扰源占用的窄带信道上。

公开(公告)号：US20110306375A1

公开(公告)日：2011-12-15

申请号：US12796683

申请日：2010-06-09

Applicant: Ranveer Chandra ,  Thomas Moscibroda ,  Xiaohui Wang

Inventor： Ranveer Chandra ,  Thomas Moscibroda ,  Xiaohui Wang

IPC: H04W72/04 ,  H04B7/212

CPC classification number: H04W24/00 ,  H04B2201/692 ,  H04J11/0056 ,  H04L5/0007 ,  H04L27/0006 ,  H04W72/00 ,  H04W72/0453 ,  H04W72/048

Abstract: There is provided a computer-implemented method for transmitting data over a wireless network using white spaces. A first white space transmission channel is determined for communicating with mobile client devices. Wireless communication takes place with the mobile client devices over the first white space transmission channel. If the first white space transmission channel becomes unavailable to one of the mobile client devices because of the presence of a primary user on the first white space transmission channel, a different white space transmission channel is determined for communicating with the mobile client device that is affected. The first white space transmission channel may become unavailable to the affected mobile client device, for example, because a primary user begins using the first white space transmission channel in proximity to the affected device. The primary user may be a wireless microphone. Thereafter, communication with the affected wireless device takes place on the different white space transmission channel, while unaffected devices continue to communicate on the first white space transmission channel. Also provided are an exemplary wireless base station and an exemplary mobile client device.

Abstract translation: 提供了一种用于通过无线网络使用空格来发送数据的计算机实现的方法。 确定用于与移动客户端设备通信的第一空白传输信道。 移动客户端设备通过第一个空白传输信道进行无线通信。 如果第一空白传输信道由于第一空白传输信道上的主用户的存在而变得不能用于移动客户端设备之一，则确定不同的空白传输信道用于与受影响的移动客户端设备进行通信 。 受影响的移动客户端设备的第一个空白传输信道可能变得不可用，例如，因为主用户开始在受影响的设备附近使用第一个空白传输信道。 主要用户可以是无线麦克风。 此后，与受影响的无线设备的通信发生在不同的空白传输信道上，而未受影响的设备在第一空白传输信道上继续通信。 还提供了示例性无线基站和示例性移动客户端设备。

公开(公告)号：US11949447B2

公开(公告)日：2024-04-02

申请号：US17288298

申请日：2019-11-12

Applicant: Analog Devices International Unlimited Company

Inventor： Andre Wolokita ,  Lance Doherty ,  Sean Williams ,  Gina Aquilano ,  Michael O'Brien ,  Cornelius O'Mahony

IPC: H04W72/53 ,  H04B1/715 ,  H04W72/50 ,  H04W72/542 ,  H04B1/7156

CPC classification number: H04B1/715 ,  H04W72/535 ,  H04W72/542 ,  H04B2001/7152 ,  H04B1/7156 ,  H04B2201/692

Abstract: A wireless communication system includes a network manager configured to wirelessly communicate with a plurality of wireless nodes of a wireless network. The network manager and at least one wireless node include a transceiver connected to transmit and receive wireless communication via an antenna. The network manager and/or the wireless node include a cognitive engine configured to receive information regarding an environment of the wireless network as input and, in response, generate configuration data as output. Subsequent communication on the wireless network is updated using the configuration data.

公开(公告)号：US20180191457A1

公开(公告)日：2018-07-05

申请号：US15397640

申请日：2017-01-03

Applicant: GANG WANG ,  XIN TIAN ,  ZHIHUI SHU ,  WENHAO XIONG ,  TIEN M. NGUYEN ,  KHANH D. PHAM ,  ERIK BLASCH ,  DAN SHEN ,  ZHONGHAI WANG ,  GENSHE CHEN

Inventor： GANG WANG ,  XIN TIAN ,  ZHIHUI SHU ,  WENHAO XIONG ,  TIEN M. NGUYEN ,  KHANH D. PHAM ,  ERIK BLASCH ,  DAN SHEN ,  ZHONGHAI WANG ,  GENSHE CHEN

IPC: H04K3/00 ,  H04B17/391 ,  H04B1/715 ,  H04B1/00

CPC classification number: H04K3/25 ,  H04B1/0028 ,  H04B1/715 ,  H04B7/19 ,  H04B17/345 ,  H04B17/391 ,  H04B2201/692 ,  H04B2201/71323 ,  H04L27/0006 ,  Y02D70/168 ,  Y02D70/446

Abstract: A systematic interferences mitigation design for protected satellite communications (SATCOM) is provided. An advanced channel coding is designed to provide coding gain for SATCOM even in the presence of synchronization errors due to the effect of radio frequency interferences (RFIs). A unified SATCOM system spectrum efficiency and energy efficiency method is developed with a unified interference model for SATCOM dynamic resource allocation (DRA). The SATCOM system DRA is designed with a game theoretic engine and optimizations providing traffic control, power control, and modulation and coding agile waveform adaptations. The interferences mitigation design is implemented with software defined radio USRP and GNU-radio to maintain communication link quality of services (QoS).

公开(公告)号：US09887768B1

公开(公告)日：2018-02-06

申请号：US12456281

申请日：2009-06-15

Applicant: John Thommana ,  Lizy Paul ,  Roy C. Moore ,  Neil R. Coonrod

Inventor： John Thommana ,  Lizy Paul ,  Roy C. Moore ,  Neil R. Coonrod

IPC: H04B17/00 ,  H04B7/26 ,  H04B17/391

CPC classification number: H04B7/2696 ,  H04B1/06 ,  H04B17/391 ,  H04B2201/692

Abstract: The present invention is a method for tactical spectrum harvesting via a cognitive communication device. The method may include monitoring a wireless communication frequency spectrum. The method may further include detecting active net communication transmissions. The active net communication transmissions may be transmitted via the monitored communication frequency spectrum by a plurality of active transmitting nets. The method may further include determining an identity of/identifying at least one active transmitting net included in the plurality of active transmitting nets. The method may further include synchronizing an internal time reference of the cognitive communication device with a time reference(s) of the identified active transmitting net(s). The method may further include determining an estimated future spectral occupancy for the identified active transmitting net(s) based on time data for the active net communication transmissions, cryptographic key data for the active transmitting nets, and algorithm data for the active transmitting nets.

公开(公告)号：US20170093603A1

公开(公告)日：2017-03-30

申请号：US15088431

申请日：2016-04-01

Applicant: The Board of Trustees of the University of Alabama

Inventor： Fei Hu ,  Mengcheng Guo

IPC: H04L27/00 ,  H04B1/7103

CPC classification number: H04L27/0006 ,  H04B1/69 ,  H04B1/7103 ,  H04B2201/692 ,  H04B2201/709709

Abstract: Systems and methods for cognitive radio spectrum sensing of a signal are disclosed herein. On exemplary method comprises applying a pre-defined cyclostationary feature to detect the presence of the signal; detecting the signal; detecting a spectrum associated with the signal; sampling randomly the detected signal from its cyclic frequency domain; and applying a compressive sensing algorithm to classify the signal based on the cyclostationary feature. The signal can be sparse in time, space, frequency, or code domains. Thereby, the systems and methods described in the present disclosure involve exploiting compressive sensing in a specific sparse domain (i.e., cyclic domain) and also utilize a cyclostationary feature based compressive spectrum sensing scheme to perform spectrum analysis.

公开(公告)号：US08761290B2

公开(公告)日：2014-06-24

申请号：US13133942

申请日：2011-01-28

Applicant: Ezekiel Kruglick

Inventor： Ezekiel Kruglick

IPC: H04B7/02

CPC classification number: H04B1/707 ,  H04B1/69 ,  H04B2001/6912 ,  H04B2201/692 ,  H04W16/14 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/40

Abstract: Technologies are generally described for cognitive radio spectrum sensing via Code Division Multiple Access (CDMA) receiver coding. A CDMA module in the front-end of a cognitive radio system may be used to sense spectrum. When the system is not decoding or transmitting signals, a modified CDMA receiver coding may replace a pseudorandom code used in decoding with relatively pure, non-random detection frequency to scan for energy from primary users of the spectrum. Multiplication of the received signal by spectrally pure codes in place of the CDMA code renders the CDMA processor effectively a scanning spectrum analyzer and may detect energy at multiple frequencies. The allocation of sub-bands and/or timing may be adjusted to account for the detected energy.

Abstract translation: 通常通过码分多址（CDMA）接收机编码来描述用于认知无线电频谱感测的技术。 认知无线电系统前端的CDMA模块可用于感测频谱。 当系统不解码或发送信号时，修改的CDMA接收机编码可以用相对纯的非随机检测频率代替用于解码的伪随机码，以扫描来自频谱的主要用户的能量。 通过频谱纯码代替CDMA码对接收信号的乘法使得CDMA处理器有效地实现了扫描频谱分析仪，并且可以检测多个频率的能量。 可以调整子带和/或定时的分配以考虑检测到的能量。