Patent application number | Description | Published |
20080219201 | Method of Clustering Devices in Wireless Communication Network - In a wireless communication network ( | 09-11-2008 |
20080225878 | Spectrum Management in Dynamic Spectrum Access Wireless Systems - A wireless system and method including a medium access control (MAC) layer adapted to transmit and receive spectrum management commands for wireless devices operating in restricted channels. | 09-18-2008 |
20080247376 | Beaconing Protocol for Ad-Hoc Networks - A distributed MAC protocol is provided that includes a superframe ( | 10-09-2008 |
20080253341 | Method for Improving Self-Coexistence of Wireless Communication Networks - Self-coexistence of first and second wireless communication networks ( | 10-16-2008 |
20080253347 | Notification of Incumbent Users in Dynamic Spectrum Access Wireless Systems - A wireless system and method including a medium access control (MAC) layer adapted to notify a wireless station of the presence or absence of an incumbent wireless are described. | 10-16-2008 |
20080253350 | Method and Device Using Randomized Hough Transform for Detecting Radio Systems with Periodic Emission Pattern - The invention includes a method and device for identifying opportunities to transmit in a radio network. The method and device listen for a first, second, and third period of time to detect first, second, and third busy slots. A processor recognizes a sequence of the first, second, and third busy slots as a function of time, performs a Randomized Hough Transform on the sequence, generates a histogram based on the Randomized Hough Transform, identifies peaks in the histogram, determines whether the peaks correspond to a known radar, and identifies an opportunity to transmit. | 10-16-2008 |
20080259811 | Spectrum Measurement Management for Dynamic Spectrum Access Wireless Systems - A wireless system ( | 10-23-2008 |
20080259895 | System and Method for an Ultra Wide-Band Medium Access Control Distributed Reservation Protocol | 10-23-2008 |
20090040986 | METHOD OF RECOVERING COMMUNICATION ACCESS IN DYNAMIC SPECTRUM ACCESS WIRELESS SYSTEMS - A wireless system and method including a medium access control (MAC) layer adapted to recover service in restricted channels. | 02-12-2009 |
20090252219 | METHOD AND SYSTEM FOR THE TRANSMISSION OF DIGITAL VIDEO OVER A WIRELESS NETWORK - An apparatus, system and method are provided for adaptive flow control of layered streaming video over wireless local area networks (WLANs). In one aspect prioritised and adaptive transmission mechanisms are provided based on buffer fullness and discarding visually less important packets so that future visually more important packets can reach the decoder in time. In another aspect, aggregated control is provided for all video applications as well as separate control for each video application. | 10-08-2009 |
20100157066 | DETECTION OF THE PRESENCE OF TELEVISION SIGNALS EMBEDDED IN NOISE USING CYCLOSTATIONARY TOOLBOX - A method for detecting the presence of a television signal embedded in a received signal including the television signal and noise is disclosed. Either first-order or second order cyclostationary property of the signals may be used for their detection. When the first-order cyclostationary property is used, the following method is used, the method comprising the steps of upsampling the received signal by a factor of N, performing a synchronous averaging of a set of M segments of the upsampled received signal, performing an autocorrelation of the signal; and detecting the presence of peaks in the output of the autocorrelation function. When the second order cyclostationary property of the signal is used, the method comprising the steps of delaying the received signal by a fixed delay (symbol time), multiplying the received signal with the delayed version, looking for a tone (single frequency) in the output. | 06-24-2010 |
20100246434 | NETWORK ENTRY AND DEVICE DISCOVERY FOR COGNITIVE RADIO NETWORKS | 09-30-2010 |
20110032912 | MAC PROTOCOL FOR MULTI-CHANNEL WIRELESS NETWORKS - A distributed coordination of a wireless network operating on different channels is provided by dispatching a device on each ‘home’ channel to regularly visit other ‘foreign’ channels to propagate and listen to broadcast information on these channels. The information in the broadcast packets transmitted on the home channel is relayed to the devices on the foreign channels by the dispatched device, as a ‘proxy device’ that operates on behalf of the other devices in the home channel. In a preferred embodiment, various aspects of this proxy process are optimized to reduce overhead and delays. Each channel is configured to distinguish home devices from foreign devices, to avoid contention between home and foreign devices. Acquired beacon slots on foreign channels are reserved to facilitate returning proxy devices. At the home channel, an anchor device alerts other devices of the proxy device's temporary absence and preserves the proxy device's beacon slot on the home channel. | 02-10-2011 |
20110170512 | COGNITIVE RADIO DEVICE AND METHOD FOR DETERMINING CHANNEL OCCUPANCY - A detector module ( | 07-14-2011 |