Noise, Distortion, Or Unwanted Signal Detection (e.g., Quality Control, Etc.) Patents (Class 455/67.13)
  • Patent number: 8886236
    Abstract: A method includes computing a minimum sensitivity threshold value for a particular wireless device, configuring the particular wireless device to receive wireless signals with a signal strength higher than the minimum sensitivity threshold value, distributing the minimum sensitivity threshold value to other wireless devices, and configuring the other wireless devices based on the minimum sensitivity threshold value for the particular wireless device.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: November 11, 2014
    Assignee: Aruba Networks, Inc.
    Inventor: Subburajan Ponnuswamy
  • Patent number: 8879998
    Abstract: Disclosed is a device and method to automate the process of measuring RF noise, correlating measured noise with known sources, and making adjustments to the noise-measuring and reporting process. A wireless communication device is coupled to equipment at a fixed location, and transmits data about the operation of the equipment back to an operator, via a provider's network. Examples include fixed wireless terminals. A management entity aboard the wireless communication device performs the measurements via a transceiver and performs remedial actions when required, without requiring an onsite technician or remote assistance. The management entity may include a spectrum analyzer.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: November 4, 2014
    Assignee: AT&T Mobility II LLC
    Inventor: Scott D. Prather
  • Patent number: 8880002
    Abstract: A simulated radio channel is shifted with respect to a plurality of antenna elements coupled with an emulator for communicating with a device under test by using different directions for the simulated radio channel in an anechoic chamber.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: November 4, 2014
    Assignee: Elektrobit System Test Oy
    Inventors: Marko Falck, Pekka Kyösti, Petteri Heino, Jukka-Pekka Nuutinen, Jouni Saastamoinen
  • Patent number: 8880000
    Abstract: A first angle of arrival of a first signal from a second communication device to a first communication device is determined. A second angle of arrival of a second signal from a third communication device to the first communication device is determined. First coefficients to control an antenna array according to a first beam pattern is determined using (i) the first angle of arrival of the first signal and (ii) the second angle of arrival of the second signal. The first coefficients are for communicating with the second communication device. Second coefficients to control the antenna array according to a second beam pattern is determined using (i) the first angle of arrival of the first signal and (ii) the second angle of arrival of the second signal. The second coefficients are for communicating with the third communication device.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: November 4, 2014
    Assignee: Marvell International Ltd.
    Inventor: Cuifeng Zhou
  • Patent number: 8879997
    Abstract: Cross-polar discrimination (XPD) of a dual orthogonal cross-polarized antenna is maximized via a cross-coupling network between base station MIMO branches prior to connection to the base station antenna. In one embodiment, a cross coupling network combines each MIMO branch signal with an attenuated phase reversed (phase shifted) copy of the other MIMO branch signal. The amount of attenuation for each branch is equivalent to the cross polar suppression required for each antenna array. The cross-coupling can be applied at different stages of signal processing within a base station.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: November 4, 2014
    Assignee: Quintel Technology Limited
    Inventors: David Edwin Barker, David Sam Piazza, Stephen Thomas Newbold
  • Patent number: 8880017
    Abstract: A system includes a transceiver configured to receive a composite signal. The composite signal is a composite of a transmit signal and a receive signal. A replica transmitter is configured to generate a replica transmit signal based on the transmit signal. A transmit canceller is configured to recover the receive signal at least in part by resistively summing the composite signal and the replica transmit signal.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: November 4, 2014
    Assignee: Marvell International Ltd.
    Inventors: Pierte Roo, Sehat Sutardja
  • Patent number: 8879996
    Abstract: A method and system for allowing a client device to establish a direct communications session such as Wi-Fi Direct service using the 5 GHz band. In one embodiment, a client device first establishes a direct communications session, in the 2.4 GHz band with another client device, and then, based on the content used in that service, establishes a 5 GHz service if needed.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: November 4, 2014
    Assignee: Intel Corporation
    Inventors: Thomas J. Kenney, Eldad Perahia, Myron P. Hattig
  • Patent number: 8874175
    Abstract: In an embodiment, an apparatus includes a determiner, converter, adapter, and modifier. The determiner is configured to generate a representation of a difference between a first frequency at which a first signal is sampled and a second frequency at which a second signal is sampled, and the converter is configured to generate a second sample of the first signal at a second time in response to the representation and a first sample of the first signal at a first time. The adapter is configured to generate a sample of a modifier signal in response to the second sample of the first signal, and the modifier is configured to generate a modified sample of the second signal in response to a sample of the second signal and the sample of the modifier signal. For example, such an apparatus may be able to reduce the magnitude of an echo signal in a system having an audio pickup (e.g., a microphone) near an audio output (e.g., a speaker).
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: October 28, 2014
    Assignee: STMicroelectronics Asia Pacific Pte. Ltd.
    Inventors: Karthik Muralidhar, Sapna George, Saurav Sahu, Frank Teo
  • Patent number: 8874126
    Abstract: An apparatus and method for initial ranging in a wireless communication system including a heterogeneous network. An operation of a terminal includes selecting a serving cell considering a biased value of a base station applying range expansion. The operation also includes receiving ranging code classification information and threshold information associated with the serving cell. The operation further includes, if a channel quality with the serving cell is less than the threshold, selecting one a plurality of poor-expected-ranging codes indicated by the ranging code classification information, and performing initial ranging using the selected poor-expected-ranging code.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: October 28, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Su-Ryong Jeong, Sung-Eun Park, Hyun-Kyu Yu, Chi-Woo Lim, Shuangfeng Han
  • Patent number: 8874153
    Abstract: Interference to a received signal is reduced in a wireless network, the interference comprising intermodulation products of at least a first signal and a second signal. Delayed interference signals comprising simulated intermodulation products are generated on the basis of the first signal and the second signal using a range of differing delay values and each of the delayed interference signals is correlated with the received signal to produce data representing a correlation for each delayed interference signal. At least one delay value is selected in dependence on a the data representative of the correlations and an interference signal comprising simulated intermodulation products generated from the first signal and the second signal using the at least one delay value is combined with the received signal.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: October 28, 2014
    Assignee: Aceaxis Limited
    Inventors: David Damian Nicholas Bevan, Simon John Gale, Fiona Maihri Wilson
  • Patent number: 8873406
    Abstract: A RACH-related system resource optimization method and apparatus is provided for a wireless communication system. Specifically, a method is provided in a user equipment for optimizing a system resource related to a random access channel in a wireless communication system. A downlink channel condition and a transmission capability for performing random access to a base station based on a stored message size parameter are measured. The measured downlink channel condition and the measured transmission capability are reported. When a new message size parameter determined based on the reported downlink channel condition and the reported transmission capability is received, the stored message size parameter is updated with the new message parameter.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: October 28, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Kyeong In Jeong, Gert-Jan Van Lieshout
  • Patent number: 8874045
    Abstract: An isolation detecting device includes a signal receiver for receiving an attenuated RF signal and transmitting at least part of the attenuated RF signal to a power sensor for conversion into a voltage signal, an A/D converter for converting the voltage signal into a numerical value, and a processing module for determining a received transmission power of the attenuated RF signal with reference to the numerical value and at least one reference set, which contains a transmission power and a numerical value associated with a test RF signal, and for further determining an isolation value by subtracting the received transmission power from a preset transmission power at which an original RF signal resulting into the attenuated RF signal is transmitted.
    Type: Grant
    Filed: March 9, 2013
    Date of Patent: October 28, 2014
    Assignee: Wistron NeWeb Corp.
    Inventor: Yung-Jinn Chen
  • Patent number: 8874034
    Abstract: Aspects of the invention may comprise managing operations of BLE interfaces and/or other radio interfaces in a wireless device to mitigate interference to communication via the BLE interfaces by the other radio interfaces. Operating parameters may be communicated between the BLE interfaces and the other radio interfaces to enable mitigating the interference to the BLE interfaces, and at least some of the BLE interfaces and/or the other radio interfaces may be configured based on the communicated operating parameters. The operating parameters may comprise adaptive frequency hopping (AFH) maps that may be adjusted to prevent use of common and/or used channels. The communication device may detect energy associated with BLE communication via scan of all or some of channels used for BLE communication. BLE communication may be predicted based on monitoring of frequency bands used during BLE communication, and/or monitoring of events that may trigger and/or occur during BLE communication.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: October 28, 2014
    Assignee: Broadcom Corporation
    Inventors: John S. Walley, Brima Babatunde Ibrahim, Steven Hall, Prasanna Desai, Yuan Zhuang
  • Patent number: 8867667
    Abstract: Systems, methods, and devices to enable monitoring of wireless networks are described herein. In some aspects, a low power receiver or a receiver operating in a low power mode scans for signals with a moderate or low duty cycle. If a signal identifying a device or user of the receiver, or a signal indicating that there will be a subsequent data communication, is received, a high power receiver or a receiver operating in a high power mode is activated to receive data communications.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: October 21, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Mohammad Hossein Taghavi Nasrabadi, Hemanth Sampath, Didier Johannes Richard Van Nee
  • Patent number: 8867656
    Abstract: When a determination is made that communication by an SM scheme is suitable, a setting unit performs switching from a communication level by an STC scheme to the communication level by the SM scheme, between the communication level at a first level of MCS by the space-time coding scheme and the communication level at a second level of MCS by the SM scheme. When a determination is made that communication by the SM scheme is unsuitable, the setting unit performs switching from the communication level by the STC scheme to the communication level by the spatial multiplexing scheme, between the communication level at a third level of MCS, which is higher than the first level, by the space-time coding scheme and a fourth level of the modulation scheme and the coding rate, which is higher than the second level, by the SM scheme.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: October 21, 2014
    Assignee: KYOCERA Corporation
    Inventor: Takeo Miyata
  • Patent number: 8867984
    Abstract: Techniques are disclosed for interference coordination in communication networks. For example, a method comprises the following steps. Input information is obtained from a communication network. The input information comprises existing power levels associated with transmitting nodes in the communication network, and existing channel information associated with receiving nodes in the communication network. A coordinated resource set of future transmitting times and future power levels associated with the transmitting nodes and future decoding times associated with the receiving nodes that reduce interference in the communication network is determined. The coordinated resource set determination comprises evaluating a cost function for a given range of interference values based on at least a portion of the input information. In a downlink scenario, the transmitting nodes may comprise base stations and relays, and the receiving nodes may comprise user equipment.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: October 21, 2014
    Assignee: Alcatel Lucent
    Inventors: Antonia M. Tulino, Gerard J. Foschini, Reinaldo A. Valenzuela
  • Patent number: 8868002
    Abstract: A method for surveying a site for installation of wireless access points is provided. A map of the site under survey is displayed. User input relating to the position of a first wireless device at the site is received. User input relating to the position of a second wireless device at the site is also received. Wireless signals broadcast by the second wireless device are measured using the first wireless device to obtain signal strength values corresponding to the strength of the wireless signals. Attenuation values based on the signal strength values are calculated and assigned to features on the map of the site under survey.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: October 21, 2014
    Assignee: Xirrus, Inc.
    Inventors: Jack Michael Horner, Dirk Ion Gates, Kurt Karl Sauter, Bruce Anthony Miller, Alexander Chernyakhovsky
  • Patent number: 8862076
    Abstract: There is provided a method of method of estimating a quality of a signal, the method in a first device comprising measuring a signal transmitted from a second device to a third device; determining a value of a metric from an autocorrelation function of the measured signal; and determining an estimate of the quality of the signal from the determined metric.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: October 14, 2014
    Assignee: Intel Corporation
    Inventor: Nicholas William Whinnett
  • Patent number: 8861499
    Abstract: Systems and techniques relating to wireless communication are described. A described technique includes transmitting a first signal wirelessly to a wireless communication device in accordance with a first transmit mode that is selected from a plurality of transmit modes; receiving a shortlist from the wireless communication device, the shortlist identifying a subset of the transmit modes, the subset of the transmit modes including two or more modes that are different from the first transmit mode; selecting a second transmit mode from the shortlist; transmitting a second signal wirelessly to the wireless communication device in accordance with the second transmit mode; and selectively cycling through any remaining modes of the shortlist based on a lack of reception of an acknowledgement to the second signal. The wireless communication device can be configured to generate the shortlist based on a channel quality analysis of a received version of the first signal.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: October 14, 2014
    Assignee: Marvell International Ltd.
    Inventors: Ravi Narasimhan, Hemanth Sampath
  • Patent number: 8862066
    Abstract: In order to settle a problem of suppressing degradation of a throughput of a communication system, a communication device is provided with a reception means which receives and accumulates a first datum which a first device transmits addressing a second device and a second datum which the second device transmits, a transmission means which transmits the first datum to the second device, a quality index acquisition means which acquires a first index which is a quality of communication between the first device and the second device and a second index which is a quality of communication between the communication device and the second device, and a judgment means which forces to transmit the accumulated first datum to the second device using the transmission means in the case of judging that the second index is better than the first index and a reception condition of the second datum shows that the second device does not receive normally the first datum.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: October 14, 2014
    Assignee: NEC Corporation
    Inventors: Yumi Hirano, Satoru Yamano
  • Patent number: 8862060
    Abstract: An electronic device may include sensitive circuitry such as radio-frequency receiver circuitry. A noise source may produce radio-frequency interference that can disrupt operation of the sensitive circuitry. The noise source may include a first transmitter such as a cellular telephone transmitter and as second transmitter such as a wireless local area network transmitter. Interference may be produced by simultaneous operation of the first and second transmitters. The radio-frequency receiver circuitry may be satellite navigation system receiver circuitry that includes one or more satellite navigation receivers. The impact of interference may be reduced by blanking the satellite navigation system receiver, by imposing a duty cycle limitation on the second transmitter, by switching between alternative receivers in the satellite navigation system receiver circuitry, by using an interference-dependent cross-correlation protection scheme, or by using a combination of these schemes.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: October 14, 2014
    Assignee: Apple Inc.
    Inventors: Robert W. Mayor, Joseph Hakim
  • Patent number: 8862085
    Abstract: A radio receiver apparatus includes a demodulator configured to output a decision variable indicative of a binary indicator signaled from a transmitter over a channel to the radio receiver apparatus. The radio receiver apparatus further includes a noise power estimator configured to generate noise power estimates indicative of noise experienced at the radio receiver apparatus. A binary indicator estimator is provided to generate an estimated binary indicator based on the decision variable and the noise power estimates.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: October 14, 2014
    Assignee: Intel Mobile Communications GmbH
    Inventors: Rajarajan Balraj, Thorsten Clevorn, Herbert Dawid
  • Patent number: 8862168
    Abstract: A base station device, method, and communication system are disclosed. The base station includes a covariance matrix obtaining unit forming a covariance matrix of an interference vector and a noise vector from received signals from multiple user equipment; a ratio calculation and comparison unit that calculates a relative ratio between the interference and the noise in the received signals based on the covariance matrix and compares the ratio with a predetermined threshold; an adjusting unit that reduces values of non-diagonal elements in the covariance matrix when the ratio is less than the predetermined threshold; an equalizer unit that performs equalization based on the covariance matrix using an Interference Rejection Combining algorithm when the ratio is greater than or equal to the predetermined threshold, and equalizes the received signals based on the adjusted covariance matrix using a Minimum Mean Square Error algorithm when the ratio is less than the predetermined threshold.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: October 14, 2014
    Assignee: Alcatel Lucent
    Inventors: Yalin Li, Wei Cao, Xun Fan, Lingfeng Lin, Chunting Li, Yong Wang
  • Publication number: 20140302796
    Abstract: A method of detecting downlink interference in a communications system may include selecting a set of user equipment for measuring interference and generating a downlink interference neighbor list for some or all of the user equipment in the set. Empty resource blocks that are common to base stations on each downlink interference neighbor list are identified, and signals that are received by the set of user equipment during the empty resource blocks are analyzed to detect interference. Certain aspects of the method may be practiced before or after an interference detection period. A system for detecting downlink interference is also provided.
    Type: Application
    Filed: February 26, 2014
    Publication date: October 9, 2014
    Applicant: Eden Rock Communications, LLC
    Inventors: Eamonn GORMLEY, Chaz IMMENDORF, Rekha MENON
  • Patent number: 8855692
    Abstract: A satellite communication system comprised of a hub and plurality of remote terminals, wherein the system is configured for frequency reuse, a method and apparatus for signal cancellation are disclosed. The disclosed method and apparatus enable the hub to extract return link signals overlaying a transmitted forward link signal, wherein the forward link signal is transmitted at a power level higher than that of the overlaying return link signals.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: October 7, 2014
    Assignee: Gilat Satellite Networks, Ltd.
    Inventors: Avihay Lachman, Yariv Hayoun
  • Patent number: 8855569
    Abstract: Systems and methods for communicating with a radio frequency (RF) device are disclosed herein. In particular, a method of the present disclosure includes: listening for a first hailing signal to be received on at least one hailing channel selected from a plurality of hailing channels, selecting at least one hailing channel based upon a system time and a node identification; determining a noise floor for the at least one hailing channel; and upon receiving a noise signal on the at least one hailing channel, adjusting the noise floor in response to the noise signal.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: October 7, 2014
    Assignee: Mueller International, LLC
    Inventors: David Edwin Splitz, William Charles Shoesmith, Robert Henry Grady
  • Patent number: 8849231
    Abstract: Systems and methods for adaptive power control are provided. In exemplary embodiments, a primary signal is received. A noise power level of the primary signal is then estimated. The noise power level may then be compared to at least one power threshold. Subsequently, a large power consuming system is controlled based on the comparison of the noise power level to the power threshold.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: September 30, 2014
    Assignee: Audience, Inc.
    Inventors: Carlo Murgia, Alex Afshar, David Klein
  • Patent number: 8848822
    Abstract: A feedback method for interference alignment in wireless network having K transmitters and K receivers, the method including: transmitting, by a transmitter n?1, a precoding vector of the transmitter n?1 (n being an integer between 2 and K?1) to a receiver n+1; calculating, by the receiver n+1, a precoding vector of a transmitter n using the precoding vector of the transmitter n?1; and transmitting, by the receiver n+1, the precoding vector of the transmitter n to the transmitter n.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: September 30, 2014
    Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Patent number: 8849326
    Abstract: A Coordinated MultiPoint (CoMP) cell controller performs network-centric link adaptation for User Equipment (UE) in the CoMP cell. The CoMP cell controller receives at least infrequent channel estimates from a UE in the CoMP cell, from which it estimates downlink channel and thermal noise at the UE. The CoMP cell controller is aware of the desired signal to be received at the UE, and the intra-CoMP cell interference to the UE caused by transmissions to other UEs in the CoMP cell. The CoMP cell receives from the UE reports of inter-CoMP cell interference caused by transmissions by other CoMP cells. Based on the downlink channel quality, the desired signal, the intra-CoMP cell interference, the inter-CoMP cell interference, and the thermal noise, the CoMP cell controller performs link adaptation by selecting modulation and coding schemes, and other transmission parameters, for an upcoming transmission duration (such as a TTI).
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: September 30, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Kambiz Zangi, Dennis Hui, Abdulrauf Hafeez
  • Patent number: 8849289
    Abstract: A method and apparatus for transferring to a second communication band and returning to an original communication band according to a channel state in a multiband communication system are provided. The method includes communicating with a peer device in a first band, determining a channel state of a second band, and transferring to the second band based on a result of the determination, thereby efficiently using a plurality of bands and thus improving a data transmission speed.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: September 30, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyuk-choon Kwon, Hae-young Jun, Ho-dong Kim, Soo-yeon Jung
  • Patent number: 8848598
    Abstract: A method may include distributing a interfered terminal; calculating an initial signal-to-interference power ratio and a data throughput of the interfered terminal; distributing interfering terminals and an interfering link base station; calculating a final transmitting power of the interfering terminal through power control between the interfering terminal and the interfering link base station; calculating a path loss and a collision factor between the interfered terminal and the interfering terminal; and calculating a final signal-to-interference power ratio and a data throughput of the interfered terminal. Accordingly, it is possible to analyze interference in consideration of a terminal use pattern in view of presence of hot spots, and to provide basic data for setting an effective emission transmitting power level of the terminal and a protection band between the terminals since the signal-to-interference power ratio and the data throughput can be calculated through interference analysis.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: September 30, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: Ho Kyung Son
  • Patent number: 8849210
    Abstract: For interference control, a sector m estimates interference observed from terminals in neighbor sectors and obtains an interference estimate. Sector m may generate an over-the-air (OTA) other-sector interference (OSI) report and/or an inter-sector (IS) OSI report based on the interference estimate. Sector m may broadcast the OTA OSI report to the terminals in the neighbor sectors. These terminals may adjust their transmit powers based on the OTA OSI report. Sector m may send the IS OSI report to the neighbor sectors, receive IS OSI reports from the neighbor sectors, and regulate data transmissions for terminals in sector m based on the received IS OSI reports. Sector m may control admission of terminals to sector m, de-assign admitted terminals, schedule terminals in sector m in a manner to reduce interference to the neighbor sectors, and/or assign the terminals in sector m with traffic channels that cause less interference to the neighbor sectors.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: September 30, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Murat Mese, Arak Sutivong, David Jonathan Julian
  • Patent number: 8849340
    Abstract: A method of operating a communication system such that the communication system comprises at least a macrocell base station and a femtocell base station that is within the coverage area of the macrocell base station. The communication system is configured to provide an indication of the noise rise or interference at the macrocell base station to the femtocell base station and the femtocell base station, in response thereto, adjusts a maximum permitted transmission power based on the indication.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: September 30, 2014
    Assignee: Intel Corporation
    Inventor: Nick Whinnett
  • Patent number: 8849209
    Abstract: A communications device may include a wireless radio frequency (RF) transceiver, and a controller coupled to the wireless RF transceiver. The controller may be configured to determine received signal characteristics and perform a spectral estimation operation associated with a frequency spectrum on the received signal characteristics, determine a channel selection method characteristic associated with a channel in the frequency spectrum including channels, generate statistical values for each channel based upon the received signal characteristics, and select a portion of the frequency spectrum for a signal to be transmitted by the wireless RF transceiver based upon the spectral estimation operation, the statistical values, and the channel selection method characteristic.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: September 30, 2014
    Assignee: Harris Corporation
    Inventors: John Wesley Nieto, William Nelson Furman, Eric Norman Koski
  • Patent number: 8848562
    Abstract: A method includes receiving an indication of current quality of service for a transmission received by user equipment from a base station. The method includes identifying target quality of service values for the transmission. A current FEC value and a current MCS value is identified for the transmission. An adjusted FEC value and an adjusted MCS value is determined based on the current FEC value and the current MCS value, the indication of current quality of service, and the target quality of service values. The method includes outputting the adjusted FEC value to a broadcast multicast service center for the transmission. The method also includes outputting the adjusted MCS value to the base station.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: September 30, 2014
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Lalit Kotecha, Sergio Aguirre
  • Patent number: 8849218
    Abstract: A radio base station controls an antenna by adjusting a radio parameter value of the radio base station, and notifies another radio base station of the adjustment of the radio parameter value. The radio base station receives information from the other radio base station. The information relates to an influence on a radio characteristic of a cell formed by the other radio base station. The radio characteristic is influenced by the adjustment of the radio parameter of the radio base station. The radio base station readjusts the radio parameter value of the radio base station based on the information. The information relates to the influence on the radio characteristic of the cell formed by the other radio base station.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: September 30, 2014
    Assignee: Fujitsu Limited
    Inventor: Teppei Oyama
  • Publication number: 20140287694
    Abstract: A method of measuring channel information using a terminal in a communication system, according to an embodiment of the present invention, includes the steps of: receiving channel measurement setup information from a base station; entering an idle mode in the state of communication with the base station; measuring information indicating according to the channel measurement setup information; and transmitting a signal including the measured information to the base station.
    Type: Application
    Filed: October 10, 2012
    Publication date: September 25, 2014
    Inventors: Sang Bum Kim, Soeng Hun Kim
  • Patent number: 8843073
    Abstract: Techniques for radio resource measurement (RRM) that support directionality, as well as scheduled media access techniques are described. For instance, a measurement request may be transmitted from a first device to a second device. This measurement request directs the second device to take one or more measurements of a wireless channel. Various characteristics for the one or more measurements may be included in the measurement request. For example, the measurement request may indicate at least one directional parameter and at least one timing parameter for the one or more measurements. In response to the request, the first device receives a measure report that includes measured values for each of the one or more measurements.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: September 23, 2014
    Assignee: Intel Corporation
    Inventors: Carlos Cordeiro, Praveen Gopalakrishnan
  • Patent number: 8843166
    Abstract: A method for interference alignment in wireless network having 3 transmitters and 3 receivers which are equipped with M antennas is provided. The method comprising: transmitting, performed by each of the 3 transmitters, a pilot signal known to the 3 receivers; estimating, performed by each of the 3 receivers, each channel from transmitter; transmitting, performed by each of the 3 receivers, feedback information to target transmitter; and determining, performed by transmitter 2 and transmitter 3, a precoding vector; wherein a degree of freedom (DoF) of a transmitter 1 is (M/2??), a DoF of the transmitter 2 or the transmitter 3 is M/2.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: September 23, 2014
    Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Patent number: 8843071
    Abstract: A method for controlling interference in a Near Field Communication (NFC) network including a plurality of connections for direct communication between terminals is provided. The method includes receiving a signal transmitted by a first terminal through a first connection for direct communication with the first terminal, and measuring received power for the signal, measuring received power for each of interference signals upon receiving the interference signals caused by communication through connections other than the first connection among the plurality of connections, calculating a first Signal-to-Interference Ratio (SIR) using the received power for the signal and the received power for each of interference signals, and determining to one of maintain and release setup for each of the connections other than the first connection, if the first SIR is less than a threshold.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: September 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Pil-Yong Hwang, Yung-Soo Kim, Jong-Hyung Kwun
  • Patent number: 8843101
    Abstract: A wearable device for detecting a user state is disclosed. The wearable device includes an accelerometer for measuring an acceleration of a user, a magnetometer for measuring a magnetic field associated with the user's change of orientation, a microphone for receiving audio, a memory for storing the audio, and at least one processor communicatively connected to the accelerometer, the magnetometer, the microphone, and the memory. The processor is identified to declare a measured acceleration as a suspected user state, and to categorize the suspected user state based on the stored audio as one of an activity of daily life (ADL), a confirmed user state, or an inconclusive event.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: September 23, 2014
    Assignee: Numera, Inc.
    Inventors: Ram David Adva Fish, Henry Messenger, Leonid Baryudin, Soroush Salehian Dardashti, Evgenia Goldshtein
  • Patent number: 8843169
    Abstract: Described herein are various technologies pertaining to scheduling data transfer between a mobile computing device and a base station in a cellular network. A signal quality value for a signal over which data is to be transferred is computed, and transfer of data is scheduled based upon the signal quality value. If the signal quality value is above a threshold, a wireless radio of the mobile computing device is caused to commence data transfer or continue data transfer. If the signal quality value is below the threshold, and the data need not be immediately transferred, then the wireless radio is caused to transition to an idle state or remain in an idle state.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: September 23, 2014
    Assignee: Microsoft Corporation
    Inventors: Vishnu Navda, Ramachandran Ramjee, Sahil Suneja, Ananth Balashankar
  • Patent number: 8843079
    Abstract: A communication apparatus that identifies a fault of a radio link between a radio terminal and a radio base station includes according to an aspect of the present invention: a statistical information acquisition unit configured to acquire statistical information indicating a state of the radio link between the radio terminal and the radio base station from at least one of the radio terminal and the radio base station; and a fault identification unit configured to identify a fault of the radio link based on an acquired statistical information from among a plurality of faults associated with a plurality of statistical information beforehand.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: September 23, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Seijiro Yoneyama
  • Publication number: 20140273876
    Abstract: A reception apparatus includes a plurality of reception circuits that receive transmission signals, a plurality of local oscillation circuits that respectively supply the plurality of reception circuits with local oscillation signals, and a control unit that controls tunings in the plurality of reception circuits. When at least one reception circuit among the plurality of reception circuits is not used to receive the transmission signals, the control unit searches for an interference wave using the unused reception circuit.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 18, 2014
    Applicant: Sony Corporation
    Inventors: Hiroyuki Shimizu, Tomonori Nakajima
  • Publication number: 20140273874
    Abstract: A communications terminal may include: a plurality of antennas; and a transmitter configured to transmit a signal on an antenna of the plurality of antennas, wherein the transmitter further may be configured to transmit a delayed signal on another antenna of the plurality of antennas, and wherein the delayed signal may be generated by delaying the signal by a time delay.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Thorsten Clevorn, Herbert Dawid
  • Publication number: 20140273878
    Abstract: A method for obtaining sensor data about a remote target using one or more pre-existing sensors located in the vicinity of the remote target. The method includes the steps of identifying a remote target of interest, identifying one or more pre-existing target systems with one or more sensors located in the vicinity of the remote target, instructing the identified sensors to obtain sensor data and transmit the data over a communications network without detection, receiving the transmitted sensor data, and analyzing the received sensor data to create information about the remote target.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicant: SRC, INC.
    Inventor: Marcello M. DiStasio
  • Publication number: 20140273875
    Abstract: A wireless station includes: a receiver configured to receive information on a reception quality from a wireless communication apparatus that is connected to the wireless station; and a processor coupled to the receiver and configured to: calculate, based on the reception quality, an index value indicating a difference between a signal-to-interference ratio in the wireless communication apparatus and transmission power of the wireless station, calculate a statistical amount of the index value calculated with regard to each of the plurality of reception qualities, and determine the transmission power in accordance with the statistical amount.
    Type: Application
    Filed: January 10, 2014
    Publication date: September 18, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Nobukazu Fudaba, Junji Otonari
  • Publication number: 20140273877
    Abstract: Performance of WiFi devices, including WiFi access points are affected by a variety of parameters, including the location of setup of device and nearby sources of interference. Optimization of WiFi setup is enabled via quality metrics observed by the WiFi device and provided to the user. The system enables a user to change conditions that affect connection performance, such as the location of the WiFi access point, while the system automatically measures performance for each set of conditions. The system can then determine for the user which set of conditions provides the system with optimized WiFi connection performance. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Sony Computer Entertainment Inc.
    Inventor: Gregory A. Corson
  • Patent number: 8838046
    Abstract: A hybrid FDM/TDM solution for in-device coexistence interference avoidance is proposed. A user equipment (UE) comprises a first radio transceiver and a second co-located radio transceiver. The UE detects coexistence interference between the two radios based on radio signal measurement. The UE sends an IDC interference indicator to its serving base station (eNB). The UE also reports IDC information including recommendation for FDM and TDM configurations to the eNB. The eNB receives the IDC interference indicator and evaluates whether to trigger FDM-based solution to mitigate the coexistence interference. The eNB also evaluates whether to trigger TDM-based solution to mitigate coexistence interference. The evaluation is based on the recommended FDM and TDM configurations. The eNB may trigger FDM-based solution, TDM-based solution, or FDM and TDM solution based on the evaluation results of the feasibility and effectiveness of each solution.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: September 16, 2014
    Assignee: Mediatek Inc.
    Inventors: I-Kang Fu, Chieh-Chao Liu
  • Patent number: RE45203
    Abstract: An apparatus and method for transmitting/receiving data in a mobile communication system using multiple antennas are provided. A receiver estimates a fading channel of received data, selects a weight set relative to a maximum data transmission rate from at least one weight set with elements of a plurality of orthogonal weight vectors, and transmits feedback information including the selected weight set and channel-by-channel state information to a transmitter. The transmitter demultiplexes data to be transmitted on a basis of the feedback information into at least one sub-data stream, multiplies each sub-data stream by an associated weight, and transmits the data.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: October 21, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Kyu Han, Dae-Gyun Kim, Hwan-Joon Kwon, Dong-Hee Kim, Youn-Sun Kim, Yu-Chul Kim, Cheol Mun