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7392020 |
Table reference type predistorter
The purpose of the present invention is to compensate the distortion of an amplifier by a predistorter which compensates the distortion of a power amplifier even when a frequency amplitude...
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7392015 |
Calibration methods and structures in wireless communications systems
Calibration methods and structures are provided for wireless communications devices that compensate across a signal bandwidth for relative gain and phase errors between spatial communication...
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7391806 |
Digital data exchange device in a CDMA system
The invention relates to a device for exchanging digital data between several sources and at least one hub in a CDMA system, characterized in that it comprises a number n of digital...
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7389099 |
Method and apparatus for canceling interference from high power, high data rate signals
A method and apparatus in a radio receiver for canceling interference from a high power, high data rate signal received in a combined signal that includes a contribution from the high power signal...
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7389086 |
Adaptive array antenna controller
An adaptive array antenna controller is disclosed that adaptively controls weighting coefficients of multiple antenna elements of an array antenna based on a digital signal outputted from an...
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7385944 |
Method of interference cancellation in communication systems
In a method of canceling interference, a base station selects a known highest data rate user transmission from a received first signal containing a group of user transmissions. The known highest...
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7383057 |
Cyclic transmit power adjustment scheme
The present invention provides cyclic power changing patterns for transmissions in different sectors of a cellular system. The cyclic power changing patterns define unique patterns in which...
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7383047 |
Interference-resistant wireless audio system and the method thereof
An interference-resistant method for a wireless audio system capable of transforming an audio signal into an RF signal includes transforming the audio signal into a PCM signal, appending a first...
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7382719 |
Scalable and backwards compatible preamble for OFDM systems
A method comprising encoding a plurality of signals according to a predetermined negation scheme and transmitting the plurality of signals, wherein each signal is transmitted by way of a wireless...
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7379749 |
Radio terminal apparatus and reception operation control program thereof
A base station transmits information in a downlink signal that identifies whether the base station is an adaptive array base station. If a terminal capable of performing diversity reception...
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7379724 |
Method and apparatus for classifying interference
A mobile communications terminal for use in a cellular communications system such as a CDMA system. The terminal includes an electronic circuit for receiving a wire-less communications signal...
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7376394 |
Method and system for wireless communications using anti-interference to increase data transmission rate
A method and system for wireless communications between a sender and a receiver enables effective blocking of interference signals by other senders and improving the channel capacity. The receiver...
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7376105 |
Source coding for interference reduction
A method of encoding a transmission signal to reduce multiple access interference at a receiver. A data source signal including a plurality of source symbols is received into a transmitter. The...
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7372802 |
Message communication via channels having strong fading
In a transmitting/receiving concept a redundancy-adding encoder is used in order to obtain two data streams for different transmitters. In the receiver, the receiving signal is sampled by a first...
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7369847 |
Fixed cell communication system with reduced interference
A communication system has a high altitude communication device that has an antenna for directing beams to a fixed cell pattern with a polarity of cells. A specific pattern of cells having the same...
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7369484 |
System and method for mitigating data flow control problems in the presence of certain interference parameters
A radar, or other repetitive interference, detection and data flow control system and method for RF data transmissions uses an RF detector and an omni directional antenna to detect radar or similar...
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7366507 |
Method and system for evaluating uplink inter-cell interference
Uplink inter-cell interference is evaluated by allocating positions to mobiles in the cell of interest (C 0 ) and in interfering cells, computing a value for inter-cell interference for this...
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7366476 |
Transmission power control method and controller
The object of the present invention to provide a transmission power control method which controls a transmission power of a downlink common channel so that the transmission power is adapted to a...
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7366475 |
Signal strength measurements in cellular telecommunication systems
A mobile station (MS) and method for estimating received signal strength of a radio signal from a neighboring cell in a cellular radio telecommunication network. The MS measures the received signal...
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7366472 |
Technology for creating a RF radiation-free environment
The invention relates to a method of rendering telecommunication devices ineffective, by creating a substantially radio frequency radiation-free environment by providing an interference generating...
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7366471 |
Mitigating interference between wireless systems
Two separate radio frequency networks may be operated within interference distance from one another in a way which mitigates the possibility of interference. Using received signal strength...
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7366470 |
Inter-modulation distortion compensation
An Inter-modulation distortion measurement and correction method which could be applied over a communication channel that is a combination of either or both analog and digital channels. This method...
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7366128 |
System and method for avoiding interference between two communications systems
A system and method for avoiding mutual interference between two communications system is disclosed. One embodiment of the invention provides a system that includes a fixed unit and a portable...
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7363040 |
Interference avoiding radio transmission unit
An object of this invention is to avoid interfering from a radio LAN transmission unit and being interfered. This invention relates a radio transmission unit for transmitting according to a second...
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7363011 |
Method and apparatus for estimating the impulse response of a radio channel based on a calculated correlation sequence
A method and a correspondingly operative radio receiver ( 10 ) (in either user equipment or a base transceiver station of a cellular telecommunication system) by which the radio receiver ( 10 ), in...
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7363008 |
Spectrum sharing in the unlicensed band
The invention provides methods for autonomous detection and adaptation with respect to an interfering signal on a frequency channel to assist a wireless device on a wireless network in choosing an...
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7362817 |
UWB (Ultra Wide Band) interference mitigation
UWB (Ultra Wide Band) interference mitigation. A novel solution is presented whereby various piconet operable devices are operated to support a relatively structured interference pattern. The...
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7359735 |
Radio communication apparatus and packet scheduling method
A radio communication apparatus enhances cell throughput by adaptive selection of spatially multiplexed channels in consideration of interferences in a local cell and reducing load for calculation...
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7359733 |
Beam synthesis method for downlink beamforming in FDD wireless communication system
A method for downlink beamforming in a frequency-division-duplex wireless communications system comprising a base station with an antenna array and terminals that are physically remote from said...
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7359676 |
Systems and methods for adaptively scanning for wireless communications
This application is directed to systems and methods for adaptively scanning for wireless communications. Scan data associated with scanning one or more wireless network channels based upon a scan...
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7359675 |
Methods and apparatus for high throughput multiple radio wireless cells and networks
Methods and apparatus for high throughput wireless cells and networks are described. The wireless cells may be equipped with multiple radios. Antennas may be arranged into overlapping and...
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7359351 |
Wireless audio/video equipment and channel selecting method thereof
An A/V equipment and a channel selecting method are disclosed, wherein the A/V equipment forms a wireless network by using information of each channel obtained by scanning each channel of a...
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7356346 |
Method of uplink scheduling for data communication
A method of scheduling data communication over an uplink. The method enables two or more users seeking to transmit data over the uplink to be scheduled in response to their path loss. The user...
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7356309 |
Directional coupler for communication system
An improved directional coupler that significantly reduces the signal degradation problems associated with distortion caused by circuit elements used to measure the transmitted power. In a selected...
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7352274 |
Remote keyless entry system
An easy-to-use remote keyless entry system is provided. To execute 2-way long distance communication at a low output and within a short time, transmission is effected while a data rate of a...
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7349505 |
Relayed communication with versatile self-interference cancellation
Methods, apparatuses, and systems are presented for providing self-interference cancellation in two-way relayed electromagnetic communication between a first and a second device through a relay...
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7349379 |
Channel normalization
Soft estimate normalization for weighted multiantenna high-order modulation data channel together with separate antenna pilot channels using averaging in first time slots of a transmission time...
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7349370 |
Method for managing neighbor nodes and setting a routing path in a mobile ad-hoc network environment and network apparatus using the same
A method and network apparatus for setting a routing path and managing a neighbor node in mobile ad hoc, network environment are provided. The method for setting a routing path in mobile ad hoc...
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7348843 |
Predistortion linearizer using cascaded lower-order linearizers
A predistortion linearizer for predistorting a radiofrequency (RF) signal includes a first third-order predistortion linearizer having an input for receiving the RF signal, and a second third-order...
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7346325 |
Receiver, receiving method and portable wireless apparatus
This invention provides a receiver in which the calibration time by repeated operations to correct phase mismatch and amplitude mismatch between I and Q signals can be reduced. The receiver...
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7346173 |
Method and circuit assemblage for influencing the treble reproduction of an audio signal
A method for influencing, e.g., for decreasing, the treble reproduction of an audio signal for reproduction obtained from a received signal, the received field strength and reception quality of the...
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7343544 |
Optical disk playback apparatus and data playback method therefor
An optical disk playback apparatus for playing back or reproducing main data and its associated sub-code which are read from an optical recording medium comprises an interleave RAM for storing the...
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7340265 |
Method and apparatus for transient frequency distortion compensation
Transient distortion is compensated for by multiplying an exponentially-decaying phase shift onto the distorted waveform. The exponentially decaying phase shift waveform is patterned after the...
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7340257 |
Maximum likelihood estimation of the channel coefficients and of the DC offset in a digital baseband signal of a radio receiver using the SAGE algorithm
The proposed iterative method concurrently calculates maximum likelihood estimated values for the channel coefficients (h 0 , . . . , h L ; θ h ) and the DC offset (d; θ d ) on the basis of a...
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7340236 |
System for operational coexistence of wireless communication technologies
The present invention provides a system for providing simultaneous operation of disparate wireless telecommunication technologies within a single device ( 102 ). The device comprises a plurality of...
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7339994 |
Method and apparatus for fast convergent power control in a spread spectrum communication system
A system and method for adjusting the power control target for a spread-spectrum communication system is disclosed. A preferred embodiment comprises correcting the power control target based upon...
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7336930 |
Interference cancellation in wireless relaying networks
In accordance with the invention, signal information representative of a first set of information to be transmitted more than one time over at least one link is stored as a priori known signal...
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7336929 |
Short range wireless communication system, portable terminal apparatus, and wireless communication apparatus
A portable terminal monitors a signal level of a short-range wireless signal from a wireless communication apparatus. If the signal level drops so low that a state of connection for short-range...
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7336698 |
Interference cancellation in receiver of radio system
The invention relates to a receiver in a spread spectrum system, comprising reception means for receiving a spread spectrum signal. The receiver comprises interference cancellation means configured...
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7333813 |
Methods and devices for assigning mobile devices to base stations in the presence of interference
Mobile devices are assigned to their correct base stations after taking into consideration interference from all other mobile devices. The resulting assignments are more efficient than previous...
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