公开(公告)号：EP2151063A1

公开(公告)日：2010-02-10

申请号：EP07765929.0

申请日：2007-06-19

申请人： Nokia Corporation

发明人： HUTTUNEN, Anu ,  KAUNISTO, Risto ,  BELOGOLOVY, Andrey, V. ,  LYAKH, Mikhail, Y. ,  WALTHO, Alan, E.

IPC分类号： H04B1/10 ,  H04B1/16

CPC分类号： H04L12/2613 ,  H04B1/1027 ,  H04B1/1036 ,  H04B1/109 ,  H04J11/0066 ,  H04L27/2614 ,  H04L27/2647 ,  H04L43/026

摘要： A wideband signal comprising both a wanted signal and narrowband interference is received in a wideband receiver. The receiver comprises an interference detection unit comprising a set of sub-band filters. With the aid of the sub-band filters the received signal is processed to detect a sub-band containing the narrowband interference in time domain.

公开(公告)号：EP2382808A1

公开(公告)日：2011-11-02

申请号：EP09839075.0

申请日：2009-01-28

申请人： Nokia Corporation

发明人： PIHLAJA, Juha ,  HUTTUNEN, Anu

IPC分类号： H04W16/14 ,  H04W24/10

CPC分类号： H04W16/14 ,  H04W24/10

摘要： An apparatus configured to operate under cognitive radio principles. The apparatus includes a processor configured to perform spectrum sensing in the apparatus to produce spectrum sensing data; and first circuitry configured to share the spectrum sensing data with other apparata.

公开(公告)号：EP2260670A1

公开(公告)日：2010-12-15

申请号：EP09728615.7

申请日：2009-03-31

申请人： Nokia Corporation

发明人： HUTTUNEN, Anu ,  JUNELL, Jari ,  PIHLAJA, Juha

IPC分类号： H04W72/08

CPC分类号： H04W72/085 ,  H04W16/14 ,  H04W24/10

摘要： A cognitive radio determines a frequency channel of a spectrum, determines from a locally stored association of individual channels to either of at least two categories (e.g., in use and backup, other is a third category) a selected category for the determined frequency channel. From the selected category is determined a time at which to sense the determined frequency channel. The determined frequency channel is then sensed at the determined time and results of the sensing may be transmitted. Timers may be associated with each of the categories and adjusted based on density of cognitive nodes. A timer for the in use category is shortest, a timer for the other category is longest, and a timer for the backup category is between shortest and longest.

摘要翻译： 认知无线电bestimmt的频谱的频率信道，从个别信道来要么至少两个类别的本地存储关联确定性矿（例如，在使用和备用，另一个是第三类）一选择的类别为确定性开采频率信道。 从所选择的类别确定的开采在哪一个时间，以感测确定性开采频率信道。 确定性开采的频率信道，然后在所述确定性开采时间感测到的与感测的结果可能是反式mitted。 定时器可以与每个类别相关联，并且基于认知节点的密度调节。 用于在使用中将类定时器是最短的，对于其他类别的计时器是最长的，并且备份类定时器是最短和最长之间。

公开(公告)号：EP2220885A2

公开(公告)日：2010-08-25

申请号：EP08859103.7

申请日：2008-12-02

申请人： Nokia Corporation

发明人： HUTTUNEN, Anu ,  KIUKKONEN, Niko ,  KOIVUNEN, Visa

IPC分类号： H04W16/14

CPC分类号： H04W24/10 ,  H04W72/04

摘要： In a first time interval Tl a first frequency band FB is pseudorandomly selected from a designated spectrum, and a first analysis result is determined by sensing the first FB during the first Tl and then transmitted. In a second Tl a second FB is pseudorandomly selected from the designated spectrum, and a second analysis result is determined by sensing the second FB during the second Tl and then transmitted. Where multiple devices do this the entire spectrum is sensed, each band by a subset of devices that changes at each Tl, and so any unused or underutilized spectrum is searched by the collaborative spectrum sensing, which avoids propagation problems such as fading. Also, a central node can assure various collaborating users report different FBs in different TIs such that the subset of reporting users changes for at least one of the bands in each subsequent reporting Tl. Sensing and communication can be performed in different portions of the same network defined transmission time interval.