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| Number | Title | Issue Date |
| 8185058 | Radio coexistence mechanism for variable data rate radio links A device has a radio transmitter for a first radio link such as a Bluetooth link, having a coexistence controller arranged to communicate with a co-located other radio transmitter for another radio link, to enable both radio links to use potentially conflicting tran... | 05/22/2012 |
| 8175537 | Method and arrangement for noise floor estimation In a method of complexity reduced noise floor estimation in a wireless communications system, determining (S1), for a respective of at least a subset of a plurality of power grid points /c, a product of complementary cumulative distribution functions, each su... | 05/08/2012 |
| 8170492 | Methods and arrangements for noise rise estimation A received total wideband power in a wireless communications system is measured (202) a number of times during a time interval. A site communication throughput is determined (204) and processed (206) into a time averaged site communication throu... | 05/01/2012 |
| 8165530 | Method for transmitting channel information in multiple antenna system A method for transmitting channel information in a multi-antenna system, the method includes calculating channel quality information (CQI) with respect to each mode, comparing the CQI with respect to each mode to a threshold value with respect to each mode, and tran... | 04/24/2012 |
| 8145137 | Methods and arrangements for noise rise estimation A received total wideband power (61A) in a wireless communications system is measured a number of times during a time interval. Preferably, also code powers ((C/I)i) are measured, directly or indirectly. A probability distribution of a first power ... | 03/27/2012 |
| 8131222 | Method and apparatus for detection and prevention of crosstalk in a multiple tuner receiver Receivers using multiple tuners may introduce crosstalk between signals provided to the tuners. The disclosed embodiments relate to a method and apparatus for detecting and preventing crosstalk. A method is described that includes providing a signal to a first signa... | 03/06/2012 |
| 8112042 | Wireless communication device capable of measuring quality of wireless signal at variable time intervals A wireless communication device is disclosed in which signal quality values C[t] of a wireless signal received by the wireless communication device is successively measured at variable time intervals Δt, mean value μ of the successively-measured signal quality val... | 02/07/2012 |
| 8099057 | Spectrum sharing using cognitive radios Base stations and mobile devices have limited radio frequency spectrum through which they may communicate. Moreover, this spectrum is usually owned by a party having proprietary control. In order to allow for spectrum sharing, cognitive base stations (CBS) may be co... | 01/17/2012 |
| 8095076 | Methods and systems for low-complexity channel estimator in OFDM / OFDMA systems The present disclosure proposes a method for channel estimation with excellent accuracy for a large variety of channel conditions and with low computational complexity. The method represents a specific combination of a plurality of linear channel estimation schemes.... | 01/10/2012 |
| 8095077 | Signal power estimation Two versions of the auto-covariance matrix of a received signal are obtained. One version is dependent upon the fraction of the power of a transmission site that goes into the wanted signals and a value is sought for this fraction that produces a good match between ... | 01/10/2012 |
| 8090323 | Reverse link optimized channel quality estimation A device associated with a network receives feedback information associated with a data channel, and determines whether a condition in the data channel is changing based on the feedback information associated with the data channel. The device also calculates an impl... | 01/03/2012 |
| 8086187 | Developing and analyzing a communication system In one aspect, a method to simulate performance of a communication system includes providing a list of interference components to a user, receiving from the user selections of interference components from the list of the interference components, performing an analys... | 12/27/2011 |
| 8073395 | Channel sensing based on self-signal suppression A method and apparatus for channel sensing in a wireless communication device is provided. A self-signal intentionally transmitted to a first wireless device by another wireless communication device is detected in a signal received by the first wireless device. An o... | 12/06/2011 |
| 8045927 | Signal detection in multicarrier communication system A signal detection scheme is provided. According to the provided signal detection scheme, a received signal is correlated in a frequency domain with a reference signal. Additionally, the reception power of the received signal is calculated and the correlation value ... | 10/25/2011 |
| 8032087 | Method of detecting interference in a communication signal A method of detecting at least a radar signal in an incoming signal received by a wireless communication system, comprising the steps of obtaining a measurement of said incoming signal during a measurement duration proportional to a known pulse duration of a known r... | 10/04/2011 |
| 8023901 | Method and apparatus for deciding channel quality indicator in wireless communication system Provided are a method and an apparatus for deciding a channel quality indicator (CQI) in a wireless communication system. The method includes randomly generating CQI values encoded into genotypes to form an initial genetic group; evaluating fitnesses using the CQI v... | 09/20/2011 |
| 8005433 | Methods and arrangements for noise rise estimation A received total wideband power (61A) in a wireless communications system is measured a number of times during a time interval. Preferably, also code powers ((C/I)i) are measured, directly or indirectly. A probability distribution of a first power quantity ( | 08/23/2011 |
| 8000657 | Method and system for relaying data in a mobile communication system A method and system for relaying data in a mobile communication system are provided, in which a Relay Station (RS) configures a routing table using Link Quality Information (LQI) exchanged among Relay Stations (RSs) in a cell, determines a relay path referring to th... | 08/16/2011 |
| 7991361 | Method and system for single weight (SW) antenna system for single channel (SC) MIMO system for WCDMA Methods and systems for processing signals in a receiver are disclosed herein and may comprise receiving WCDMA signals via M receive antennas, tracking a plurality of received clusters within the received WCDMA signals, and estimating a complex phase and amplitude o... | 08/02/2011 |
| 7979032 | Estimating statistical properties of noise in modulated data carrier signals Methods, systems and apparatus for estimating statistical properties of noise in modulated data carrier signals represented by modulated data symbols are disclosed. The method comprises generating an instantaneous estimate of the statistical property of noise from t... | 07/12/2011 |
| 7953374 | Scheduling methods and systems for wireless multi-hop relay communications A scheduling method for a wireless multi-hop relay communication system, wherein the communication system includes a base station dominating a plurality of relay stations, the scheduling method including separating the plurality of relay stations into N groups, N be... | 05/31/2011 |
| 7949306 | Distortion reduction calibration Techniques are disclosed for compensating for second-order distortion in a wireless communication device. In a zero-intermediate frequency (IF) or low-IF architecture, IM2 distortion generated by the mixer (20) results in undesirable distortion levels in the ... | 05/24/2011 |
| 7945213 | Transient RF detector and recorder A portable device for detecting a radio frequency transmission of electromagnetic radiation includes a housing; a controller situated within the housing; memory communicatively connected to the controller; an antenna connected to the controller and configured to rec... | 05/17/2011 |
| 7941101 | Apparatus and method of removing interference noise in personal communication terminal Apparatus and method for removing interference noise in a personal communication terminal. A function of removing interference noise is adapted to the personal communication terminal, and adjustment parameters for removing interference noises are continuously set to... | 05/10/2011 |
| 7907907 | Cooperative link characterization and MCS selection by wireless terminal and network for improved system performance RF communications received by a wireless terminal from a servicing base station are used to determine the downlink quality report and implement link adaptation decisions. This involves first implementing an initial transmission scheme between the servicing base stat... | 03/15/2011 |
| 7907908 | Radio access point testing apparatus and method of testing radio access point A reception sensitivity is measured at a high precision. An access terminal function portion includes the transmitter part and receiver part of a communication terminal in a radio communication system. A path switch part effects switching to connect the input ends o... | 03/15/2011 |
| 7907906 | Mobile station The present invention, focusing on the fact that sometimes the channel (HS-SCCH) which notifies that data is to be transmitted will be received but it will be misdetected that there was a notification addressed to the receiving station, is to effectively utilize the... | 03/15/2011 |
| 7873324 | Apparatus and method for E-HICH/E-RGCH processing, metric estimation and detection Apparatus and method for processing a received pilot to obtain noise estimation of a pilot channel and processing a received first signal channel, separately from a second signal channel that is orthogonal to the first signal channel, to obtain a signal level of the... | 01/18/2011 |
| 7873323 | Method of estimating inter-modulation distortion In the method, positions of a plurality of transmitting sources within a proximity of a base station are determined. A received signal spectrum of signals received at the base station from the plurality of transmitting sources are simulated. Inter-modulation distort... | 01/18/2011 |
| 7869768 | Techniques for controlling speaker volume of a portable communications device A technique is directed to controlling speaker volume of a speaker of a portable communications device (e.g., a cellular telephone, a cordless hand phone, a combination of a cellular phone and a hands-free ear piece, etc.). The technique involves receiving an enviro... | 01/11/2011 |
| 7865146 | Transmission power balancing in multi-hop communication systems The present application relates to a wireless communication system and related methods and apparatuses for transmitting a signal from a source apparatus to a destination apparatus, via at least one intermediate apparatus. In particular, the present invention relates... | 01/04/2011 |
| 7848707 | Systems and methods for suppressing radio interference from a noise source via active filtering Systems and methods are provided for suppressing radio interference from a noise source having an operating frequency. One system includes memory for storing a threshold signal strength, a re-configurable filter for selectively filtering signals of a harmonic of the... | 12/07/2010 |
| 7801490 | Interference based scheduling using cognitive radios Disclosed are systems and methods which implement communication scheduling to reduce service level variance associated with interference. In providing communication scheduling according to embodiments, mult-channel coverage may be provided throughout all portions of... | 09/21/2010 |
| 7796951 | Detection of lightning A lightning detector for lightning detection and a lightning detection method, wherein the lightning detector includes a Digital Radio Mondiale (DRM) digital broadcasting system receiver having an analog front-end and a digital base-band; wherein with the analog fro... | 09/14/2010 |
| 7787827 | Preamble detection Detecting a signal included receiving a modulated waveform, and processing a first quantized signal generated from the waveform to produce a second quantized signal. The second quantized signal is a representation of the first quantized signal with lower resolution ... | 08/31/2010 |
| 7773951 | Method and apparatus for generating channel quality information for wireless communication A method and apparatus for generating channel quality information, such as may be used for transmit link adaptation, provide different operating modes, such as a first mode that may be used when propagation channel estimates are not reliable, and a second mode that ... | 08/10/2010 |
| 7773950 | Benign interference suppression for received signal quality estimation A receiver circuit suppresses effects of “benign” impairment from the calculation of received signal quality estimates, such that the estimate depends primarily on the effects of non-benign impairment. For example, a received signal may be subject to same-cell a... | 08/10/2010 |
| 7756483 | Adaptive channel quality estimation algorithm to support link adaptation RF communications received by a wireless terminal from a servicing base station are used to determine the channel quality such as reported bit error probability (BEP). The RF communications may be in the form of RF bursts that are part of a data frame. An estimated ... | 07/13/2010 |
| 7756482 | Scheduling method for wireless multihop relay communication systems and system thereof A scheduling technique for wireless multihop relay communication systems is provided. With spatial separation caused by the shadowing effect of surrounding buildings, a base station and its relay stations in a single cell are divided into several groups by following... | 07/13/2010 |
| 7729664 | Technique for reducing interference to radio operations on a computing device During a telephony session, a determination is made on a mobile computing device that one or more designated conditions exist by which radio interference generated from the mobile computing device is to be reduced. In response, a power state of a set of one or more ... | 06/01/2010 |
