Intel Corporation

Nokia Corporation

Alan Edward Waltho

Jeffrey Schiffer

Andrey Vladimirovich Belogolovy

Anu Huttunen

Mikhail Yurievich Lyakh

Risto Heikki Kaunisto

Xintian Eddie Lin

Seh Kwa

Andrew W Martwick

Michael J Schaffer

Allen W Bettner

Kevin P Slattery

David Q Xu

Ravid Shmuel

Qinghua Li

Robert Dale Cavin

Prosenjit Ghosh

Risto Heikki Sakari Kaunisto

Christopher B Rogers

Al Bettner

A method is disclosed for mitigating narrowband interference within a system for wideband communications. The method can include separating a wideband signal into a plurality of sub bands, detecting energy levels in the sub-bands, and activating a control signal if the energy levels of the sub-bands differ by a predetermined amount. Such a difference in energy levels can indicate that narrowband interference is present and interference mitigation features can be activated. In another embodiment, a system is disclosed that has a band splitter and a plurality of energy level detectors to detect energy differences in the sub bands. Other embodiments are also disclosed.

Arrangements for narrow band interference detection

In some embodiments a method is disclosed for detecting periodic interference and predicting future interference times. The method can include detecting an arrival time of a first occurrence of interference and detecting an arrival time of a second occurrence of interference. The method can include transmitting preemptive interference mitigation control signals that anticipate future arrival times of interference. A system is disclosed that includes a periodicity detector, an interference profiler and a mitigation control module. The system can provide interference mitigation features to a data recovery system. Other embodiments are disclosed.

Arrangements for acquiring and using data obtained from received interference to facilitate data recovery

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.

Interference in communication devices

A method is disclosed for interference mitigation which can include receiving a signal having a data component, an interfering component and a time period and creating a first plurality of digitized data that represents at least a portion of the interfering component. The method can also include generating a polynomial equation that is related to the at least a portion of the interfering component and generating a second plurality of digital data that represents a data vector of the received signal. The method can further subtract the polynomial equation from the received signal to cancel at least a portion of the interfering component to provide an interference mitigated signal representing the data component.

Arrangements for interference mitigation utilizing estimation

A method is disclosed that includes receiving a signal having a data vector component and an interfering component and creating a first set of digitized data that represents the interfering component. The method can also generate a polynomial equation based on the first set of digitized data and generate a second set of digitized data that represents a data vector component of the received signal. The polynomial equation can be subtracted from the received signal to cancel at least a portion of the interfering component and provide an interference mitigated signal representing the data vector component. An error in the interference mitigated signal can be determined and the interference mitigated component can be recalculated based on the error. Other embodiments are also disclosed.

Arrangements for interference mitigation utilizing recursive estimation

An antenna may comprise a first loop, a second loop, and a third loop, which are arranged to have a common intersection point on an axis that is common to the first, second, and the third loop. The first, second, and the third loop are mutually separated by an angle of separation to form a triple crossed loop antenna. The triple crossed loop antenna may provide omni-directional radiation pattern over wide band of frequency.

Omnidirectional wideband antenna

Methods and apparatus relating to reducing exposure of radio devices to interference through adaptive selection of repetitive symbols are described. In an embodiment, a symbol may be selected for transmission to a display based on the operating frequency of a wireless device receiver. Other embodiments are also described and claimed.

Reducing exposure of radio devices to interference through adaptive selection of repetitive symbols

Apparatus and systems, as well as methods and articles, may operate to distinguish between sources of signals transmitted with a pilot carrier based upon a variance in a peak-to-peak amplitude of a sum of a received pilot carrier and a delayed received pilot carrier.

Transmission distinguishing apparatus, systems, and methods

Controlling a signal transmitted from a device in a vacant channel in a spectrum.

Method and apparatus for managing communications

A wireless device dynamically controls a power level for each channel in a transmission spectrum. The power level is adjusted based on characteristics of signals received in the adjacent channels which results in the wireless device working at maximum ranges consistent with not causing interference to other users of the spectrum.

Mitigating interference to nearby radio systems based on characterization of adjacent channels

Methods and apparatus relating to reducing exposure of radio devices to interference through adaptive selection of repetitive symbols are described. In an embodiment, a symbol may be selected for transmission to a display based on the operating frequency of a wireless device receiver. Other embodiments are also described.

Interference within a wireless apparatus is mitigated by adjusting one or more transmission characteristics associated with an interconnect of the apparatus. In at least one embodiment, the interconnect is a PCI Express interconnect.

Interference mitigation by adjustment of interconnect transmission characteristics

A system, apparatus, method and article to distribute media information are described. The apparatus may include a transceiver to receive digital information representing media information. The apparatus may further include a processor to couple to the transceiver, the processor to select a modulation technique based on a receiver type and an ultra-high frequency channel using a cognitive algorithm. The transceiver may transmit the media information over the channel using the modulation technique. Other embodiments are described and claimed.

Media distribution system

An apparatus and a system, as well as a method and an article, may include shifting a digital baseband signal upward along a frequency spectrum by an amount greater than its bandwidth to provide an elevated frequency digital baseband signal, which in turn may be selected as a single-sideband signal after an image reject mixer is used to further shift the elevated frequency digital baseband signal, and modest filtering techniques are used to reject unwanted sidebands and any carrier that is present.

Signal generation apparatus, systems, and methods

An apparatus and method for WGIO phase modulation are described. In one embodiment, the method includes the receipt of a high-speed data stream, encoded according to an 8/10code. Once received, a symbol rate of the data stream is reduced by a predetermined amount. Finally, once the symbol rate is reduced, a square wave carrier is phase modulated, using the reduced data rate data stream to generate a WGIO signal having double side band spectrum distributed either side of the square wave carrier. Accordingly, in one embodiment, a 3GIO signal may be phase modulated in order to fall within a spectrum that is not currently occupied by a wireless protocol, including, for example, Wireless Local Area Network (WLAN), Wireless Wide Area Networks (WWAN), global positioning systems (GPS), or the like in order to prevent interference therebetween.

Growing community of inventors

San Jose, CA, United States of America

Alan Edward Waltho