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8135099 |
Method for detecting transmission symbols in multiple antenna system
The present invention relates to a transmission symbol detection method in a multiple antenna system. In the present invention, when a channel matrix is estimated through channel estimation, a...
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8135079 |
Apparatus and method of estimating signal-to-noise ratio
The present invention relates an apparatus and method of estimating a signal-to-noise ratio (SNR) of a received signal when the received signal has a timing offset. An apparatus for estimating a...
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8135084 |
Multiantenna receiving device
A multiantenna receiving device is provided to make it possible to cope with both improvement in error rate characteristic and simplification in structure. The multiantenna receiving device is...
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8135057 |
Reconfigurable chip level equalizer architecture
A reconfigurable chip level equalizer having circuitry that restores signal orthogonality and eliminates channel interference for a wireless transmitted signal. In at least some embodiments, the...
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8135085 |
Method of transmitting using phase shift-based precoding and an apparatus for implementing the same in a wireless communication system
According to one embodiment, a method for transmitting signals to a receiver, performed by a transmitter including a plurality of antennas, includes: selecting a precoding matrix based on a...
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8135091 |
Method and system for communication in a wireless network
The present application discloses a number of inventions directed to method(s), apparatus and/or networks and systems adapted to track time varying channels, adapted to synchronize packets arriving...
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8132067 |
OFDM receiving apparatus and OFDM receiving method
An OFDM receiving apparatus has N sets of reception and demodulation units which input one segment broadcasting signals of ground digital broadcasting received with N sets of antennas and...
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8130696 |
Transmitting an information signal over antennas
An information signal is spread with a first spreading sequence producing a first spread signal for transmission over a first antenna. The information signal is spread with the first spreading...
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8130850 |
Wireless transmission device
A method and device for managing the use of antennas in a multiple antenna wireless transmission system for OFDM signals. The method includes defining a utility function which comprises a...
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8130846 |
System and method for single-carrier space-frequency block coded transmission over frequency selective and fast fading channels
A single carrier transmission scheme which utilizes space-frequency block coding and frequency domain equalization (SF-SCFDE) is proposed for frequency selective and fast fading channel. It is...
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8130819 |
Encoding uplink acknowledgments to downlink transmissions
A portable device, such as a mobile terminal or user equipment, for encoding uplink acknowledgments to downlink transmissions. The portable device includes a receiver configured to receive a...
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8130820 |
Method and apparatus for interference cancellation in a wireless communications system
Successive interference cancellation is performed with improved computational efficiency while offering performance approaching that of full CRC-based successive interference cancellation. In a...
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8130861 |
Radio communication apparatus and radio communication method
A radio communication apparatus and an associated method are provided. The apparatus includes a receiving unit configured to receive first data and second data, which are transmitted from a...
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8126095 |
Maximum ratio combining architectures for optimal complementary code keying receiver design
A multi input multi output (MIMO) receiver for receiving signals having a plurality of equalizers being responsive to aligned signals for processing the same to generate a plurality of equalized...
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8126098 |
Multi-rake receiver
A wireless receiver includes M antennas that each receive a wireless signal. N rake receiver modules receive the wireless signals from the M antennas and combine multipath components of the...
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8126417 |
Data processing device with beam steering and/or forming antennas
A data processing device for processing signals received via a wireless link. The data processing device including a first beam steering and/or forming antenna arranged on the data processing...
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8125886 |
System, apparatus, and method for spatial multiplexing with symbol spreading
The present invention provides a system (400), device (200, 300), and method (200) for a spatial multiplexing (SMX) transmission scheme combined with symbol spreading and rotation using a...
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8126097 |
Method and system for cluster processing using conjugate gradient-based MMSE equalizer and multiple transmit and/or receive antennas for HSDPA, STTD, closed-loop and normal mode
A system and method for processing signals are disclosed. The method may include performing by one or more processors and/or circuits in a wireless device that includes a plurality of transmit...
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8126080 |
Hardware implementation of space-time block codes
The present invention is related to a circuit for encoding at least two input symbols by means of a space-time block code, comprising a plurality of multiplexers, each arranged to receive the input...
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8126504 |
Method of controlling wireless communication system and wireless communication system
A method of controlling a wireless communication system including a plurality of communication devices is disclosed. In the method, firstly, one of the communication devices establishes a fixed...
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8126096 |
System, apparatus, and method for multi-band OFDM systems with receiver antenna selection per sub-band
The present invention provides a system (300-400), apparatus (300-400), and method for an energy-based antenna selection technique in which the antenna that observes the largest SNR averaged over...
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8126040 |
Device and method for calibrating MIMO systems
A device and method for calibrating MIMO systems are disclosed. In one aspect, a calibration circuit comprises at least a first and a second input/output port, each arranged for being connected to...
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8121234 |
Multi-dimensional detector for receiver of MIMO system
Provided are a multi-dimensional detector for a receiver of an MIMO system and a method thereof. The multi-dimensional detector includes a first symbol detecting unit for calculating symbol...
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8121203 |
Ranging code detection
A ranging code present in a transmission from a transmitter to a receiver can be detected, and hence a time offset can be determined. For each of the possible ranging codes in a transmitted signal,...
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8121209 |
Concatenation-assisted symbol-level combining for MIMO systems with HARQ and/or repetition coding
Systems and methods are provided for decoding signal vectors in multiple-input multiple-output (MIMO) systems, where the receiver has received one or more signal vectors from the same transmitted...
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8121176 |
Iterative interference canceler for wireless multiple-access systems with multiple receive antennas
This invention teaches to the details of an interference canceling receiver for canceling intra-cell and inter-cell interference in coded, multiple-access, spread spectrum transmissions that...
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8121227 |
Reception device
It is possible to demodulate a plurality of modulated signals transmitted from a plurality of antennas by using a comparatively small-size circuit with a preferable error ratio characteristic....
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8121235 |
Dimension reduction for codebook search
Systems are provided for searching for a codeword from a plurality of codewords in a codebook for use in precoding, for example, as used in a multiple-input multiple-output (MIMO) transmission...
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8121184 |
Wireless receiver
A wireless receiver receiving a signal from a wireless transmitter which includes a plurality of transmission antennas and transmits data to which first phase rotation for controlling the maximum...
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8121211 |
Adaptive switching techniques for hybrid automatic repeat request systems
An adaptive transmission selection technique is provided. A retransmission scheme is selected for a multiple-input-multiple-output wireless system. A plurality of communication techniques is...
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8116259 |
Method and system for diversity processing based on antenna switching
Methods and systems for diversity processing based on antenna switching are disclosed. Aspects of one method may include switching among a plurality of antennas in a multi-antenna wireless terminal...
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8116403 |
Wireless transmission device and wireless transmission method
A wireless transmission device of the present invention includes n (where n is an integer of two or more) transmission antennas and a delay imparting section for delaying transmission signals...
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8116353 |
Spread spectrum modulator and demodulator
A spread spectrum modulator converts input sequences composed of digital symbols into n≧2 spread-spectrum sequences. The spread spectrum modulator can generate spreading code and can combine the s...
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8116414 |
Diversity receiver and diversity reception method
An orthogonal signal from a modulated signal of the digital terrestrial broadcast is produced. Then, an adder carrier-combines the orthogonal signal and an interpolated signal into an interpolated...
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8116404 |
Diversity receiver and method for controlling power thereof
The present disclosure provides a diversity receiver. The diversity receiver includes a plurality of tuners, a plurality of demodulators operatively coupled to the plurality of tuners and a...
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8116410 |
Communication signal decoding and soft demapping methods and systems
Symbol detection and soft dempapping methods and systems are provided. Individual subset symbol detection according to an embodiment of the invention involves identifying a search subset of a...
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8111743 |
Wireless transmitter
A wireless transmitter includes: a plurality of transmission antennas; and a phase rotating unit which adds phase rotation to signals which are respectively input to the plurality of transmission...
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8111782 |
Apparatus and method for transmitting/receiving data in a multi-antenna system, and system using the same
A data reception apparatus and method for generating and transmitting feedback information in a multi-antenna system using grouped antennas, and a data transmission apparatus and method for...
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8107569 |
Method and apparatus for channel bonding using a multiple-beam antenna
A system is provided that enhances the throughput and reliability of wireless communications by providing multi-beam user terminals that exhibit directional discrimination. Multiple wireless...
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8107560 |
Method and apparatus for interference cancellation in communication signal processing
A method and apparatus blindly detects a received signal's modulation type characterizing an impairment component of the received signal for each postulated modulation type by determining spatial...
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8107544 |
Method and apparatus for feedback in closed loop transmitting
A method an apparatus is described for providing feedback for closed-loop transmitting with multiple transmit and receive antennas. The method includes a first step 900 of providing a codebook...
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8107510 |
Method and apparatus for non-cooperative coexistence between wireless communication protocols
A method and apparatus of reducing interference between wireless communication protocols is disclosed. The method comprises reducing interference between a first wireless communication protocol...
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8107567 |
Method and system for SFBC/STBC in a diversity transmission system using Alamouti codes
Aspects of a system for SFBC and/or STBC in a diversity transmission system using a plurality of Alamouti codes may include a transmitting station that enables reception of signals via a wireless...
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8107570 |
Space time block coded transmit antenna diversity for WCDMA
A mobile communication system is designed with an input circuit coupled to receive a first plurality of signals (rj(i+τj), i=0−N−1) during a first time (T0-T1) from an external source and coup...
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8107906 |
Transceiver with receive and transmit path performance diversity
Methods and apparatus for implementing a wireless communication transceiver having receive path performance diversity. The transceiver implements a plurality of signal paths that can be configured...
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8107550 |
Methods for precoding signals for transmission in wireless MIMO system
Methods discussed herein provide more efficient precoding matrices for precoding signals prior to transmission. The methods discussed herein improve throughput in wireless MIMO systems. Methods...
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8102957 |
Method and apparatus for identification of transmission antenna diversity in a receiver
In a method for identification of a multiple antenna transmission mode in a radio receiver, at least two antenna-decoupled data streams (s0, s1) are produced by means of an antenna decoupling unit...
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8102956 |
Smart antenna solution for mobile handset
A mobile terminal with smart antennas, comprises a plurality of groups of radio frequency signal processing modules (300), for transforming received multi-channel radio frequency signals to...
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8098756 |
MIMO antenna apparatus capable of diversity reception using one radiating conductor
A MIMO antenna apparatus is provided with: an upper housing having slits; first feed points through which the upper housing itself is excited as first antennas; second feed points through which the...
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8098746 |
Apparatus and method for transmitting/receiving data in a closed-loop multi-antenna system
An apparatus and method for transmitting/receiving data in a closed-loop multi-antenna system. A receiver receives a plurality of data streams from a plurality of transmit antennas of a...
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