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8218681 OFDM transmitter and OFDM receiver  
An OFDM transmitter and receiver realizing high-speed cell search and having a reducible circuit scale. An OFDM transmitter includes an SCH inserting section for constructing a frame where a...
8208447 Pilot signal enhancements for a wireless communication system  
In a method and apparatus suitable to convey timely information for facilitating accurate reception of transmitted data, a pilot signal is modulated to convey information. The information may...
RE43494 Frequency look-ahead and link state history based scheduling in indoor wireless pico-cellular networks  
A method and apparatus of combating the problem of interference in master-slave time division duplex indoor wireless networks based on standards, such as the Bluetooth™ standard, is proposed. The...
8189695 Transmission method and transmission apparatus in an OFDM-CDMA communication system  
A OFDM-CDMA communication system that generates a plurality of subcarrier components by multiplying each of a plurality of transmission symbols by a channelization code whose length is N according...
8189647 Systems and methods for generating a codebook to encode embedded information  
A method for generating a codebook to encode embedded information is described. A distribution pattern of symbols is determined. A first number of codewords associated with the distribution...
8170079 Code division multiple access signaling for modulated reflector technology  
A method and apparatus for utilizing code division multiple access in modulated reflectance transmissions comprises the steps of generating a phase-modulated reflectance data bit stream; modifying...
8170143 Method and transmitting device for encoding data in a differential space-time block code  
A method and a corresponding transmitting device to encode data with a differential space-time block code. A code matrix is calculated recursively from a momentary data matrix with a previous code...
8170081 System and method for adjusting DIDO interference cancellation based on signal strength measurements  
A machine-implemented system and method are described for removing interference between adjacent distributed-input-distributed-output (DIDO) clusters comprising. For example, a method according to...
8160121 System and method for distributed input-distributed output wireless communications  
A system and method are described for dynamically adapting the communication characteristics of a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”). For example, a method...
8155224 Transmission method, transmission apparatus, and reception apparatus  
A transmission method for transmitting modulation signals of a plurality of channels to the same frequency band from a plurality of antennas. At the time when a symbol used for demodulation is...
8130814 Orthogonal code division multiplex CCK (OCDM-CCK) method and apparatus for high data rate wireless LAN  
Orthogonal Code Division Multiplexing (OCDM) transceiver system with Complementary Code Keying (CCK) and method for baseband OCDM-CCK encoding and decoding are provided. The OCDM-CCK method...
8130958 Transmit power control for wireless security  
The present invention provides a method for establishing a secure channel between wireless devices. The method involves reducing the transmit power of the devices in conjunction with placing the...
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...
8130856 Adjustable transmit diversity  
Systems and methods for adjustable transmit diversity (adjustable PSTD) are provided. A base station transmits information to a mobile station over two antennas. Using information received from...
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...
8126030 Multi-mode wireless communication device and method  
A multimode wireless communication device capable of communicating pursuant to first and second communication protocols, including a method wherein a determination is made (530) as to whether a...
8121174 Signal quality measurement system  
This disclosure relates to method, device and system for measuring signal quality in a communication system. An access point receives an uplink signal from a transmitter. The uplink signal...
8121172 Chirped surface acoustic wave (SAW) correlator/expander  
A surface acoustic wave (SAW) expander based transmitter and correlator based receiver comprises SAW devices that perform expander or correlator functions based on the types of signals inputted to...
8116695 Method, device and system of reduced peak-to-average-ratio communication  
Some embodiments include devices, methods and/or systems of reduced peak-to-average-ratio communication. An apparatus may include a transmitter to transmit a transmission corresponding to an input...
8116351 Downlink power control with limit to dynamic range using detection of downlink transmit power  
An apparatus and method is provided for dynamic range power control of a wireless downlink communication signal, such that target signal quality adjustments are held temporarily when it is...
8108749 Diversity combining iterative decoder  
An iterative decoder circuit includes an N number of sub-decoders, N−1 of the sub-decoders each being responsive to a baseband signal from one of M number of signal processing circuits. Each of...
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...
8102897 Direct sequence spread spectrum system and method with plural chipping rates  
Direct sequence spread spectrum communications can use composite codes and can operate at a plurality of different chipping rates. The composite codes can be formed using a plurality of component...
8098743 Pilot signal transmission method and radio communication system for enabling measurement of reception quality with high accuracy  
In a pilot signal transmission method for raising the SIR measurement accuracy for transmission power control during high-speed transmission and thus reducing the block error rate and improving...
8098776 Method and system for pre-equalization in a single weight spatial multiplexing MIMO system  
Certain aspects of the method may comprise receiving a plurality of spatially multiplexed communication signals from a plurality of transmit antennas at a base station. A plurality of vectors of...
8099058 Enhanced wideband transceiver  
A method for operating an integrated transceiver, comprising coupling an operating transmitter and an operating receiver within the integrated wideband receiver, inputting a signal into the...
8090004 Spectrum spread communication method and system using very weak power, and high frequency radio apparatus  
Provided is a high frequency radio apparatus for correcting a frequency of a carrier of the own apparatus in accordance with a frequency of a reception carrier when performing spread spectrum...
8085832 Segment-wise channel equalization based data estimation  
Data is estimated of a plurality of received spread spectrum signals by a wireless communication apparatus. The plurality of received communications are received in a shared spectrum. The received...
8081673 Systems and methods for processing spread spectrum signals  
Systems and methods are disclosed for processing at least two spread spectrum signals that at least partially overlap in time and in frequency. A main correlator bank with a trip detection...
8081724 Wireless network and wireless access terminals using SYNC—ID having increased granularity  
A wireless network comprising a plurality of base station capable of communicating with a plurality of mobile station in a coverage area of the wireless network. A first base station transmits an...
8078185 User group-based adaptive soft frequency reuse method to mitigate downlink interference for wireless cellular networks  
A novel soft fractional frequency reuse (FFR) technique is disclosed. The novel FFR technique includes reuse partition and power restriction, dynamic user grouping, channel quality indicator...
8077756 Signal transmitting method, transmitting apparatus, and receiving apparatus used for the signal transmitting method  
A disclosed signal transmitting method includes the steps of a) categorizing plural digital signals, obtained by performing A/D conversion on plural analog signals consecutively arranged in a time...
8073037 Base station apparatus and response signal receiving method  
A wireless communication apparatus capable of minimizing the degradation of the separation characteristic of response signals to be code-multiplexed. In the apparatus, a control part (209)...
8064550 Quadrature imbalance estimation using unbiased training sequences  
A system and method are provided for removing quadrature imbalance errors in received data. The method accepts an unbiased training sequence in a quadrature demodulation receiver. An unbiased...
8059695 Spread carrier self correcting codes  
A transmitter, receiver and communication technique. The transmitter is adapted to interleave a first pseudo-noise sequence with a second pseudo-noise sequence to provide a third pseudo-noise...
8054865 Methods and apparatus for masking and securing communications transmissions  
A secure information transmission system includes one or more transmitters and one or more receivers. The transmission waveform employed includes highly randomized, independent stochastic...
8054868 UWB transmitting/receiving apparatus, UWB transmitting/receiving terminal apparatus, and UWB transmitting/receiving system  
A UWB transmitting/receiving apparatus, a UWB transmitting/receiving terminal apparatus and a UWB transmitting/receiving system wherein a possibly reduced number of data retransmissions is...
8054866 MC-CDMA system, transmitter and receiver  
A MC-CDMA transmitter and an MC-CDMA receiver are provided, which use a novel orthogonal spreading code that allows an effect by a delay wave to appear in only a specific user. An MC-CDMA system...
8050704 Method for effectively transmitting synchronization channel and method for allocating transmission power for the same  
A method for effectively allocating a transmission power and a method for transmitting SCH are disclosed. In this case, the transmission power of the SCH, which is important for initial cell...
8045596 Apparatus and method for transmitting/receiving a signal in a communication system  
An apparatus for transmitting/receiving a signal in a communication system is provided. A Mobile Station (MS) spreads a transmission signal to generate a spreading signal, receives, from a Base...
8046214 Low complexity decoder for complex transform coding of multi-channel sound  
A multi-channel audio decoder provides a reduced complexity processing to reconstruct multi-channel audio from an encoded bitstream in which the multi-channel audio is represented as a coded...
8045536 Forward error correction scheme for high rate data exchange in a wireless system  
A transmitter/receiver system for high data transfer in a wireless communication system includes a physical layer processor that comprises an FEC coder, a demultiplexer and a plurality of modem...
8036287 Multi-carrier spread spectrum device using cyclic shift orthogonal keying, transmitter, receiver, and communication system thereof  
A multi-carrier spread spectrum device using cyclic shift orthogonal keying includes: a modulation unit for receiving a first part of data bits and transforming the first part of data bits to a...
8036259 Interactive wireless communication device  
A first communication apparatus sequentially generates a pulse sequence having pulse signals arranged based on the UWB communication system, performs a framing process to form a frame having at...
8031809 Template pulse generating circuit, communication device, and communication method  
A template pulse generating circuit that generates a template pulse used for detection of a received pulse in pulse communication includes an output mode switching circuit for switching an output...
8027372 Signal acquisition in a wireless communication system  
Each base station transmits a TDM pilot 1 having multiple instances of a pilot-1 sequence generated with a PN1 sequence and a TDM pilot 2 having at least one instance of a pilot-2 sequence...
8014436 Multi-dimensional signal of reduced peak-to-RMS ratio  
A transmitter and a method are described herein that can generate a radio signal with a reduced ratio of peak amplitude to root-mean-square amplitude which helps to improve the transmit efficiency...
RE42681 Wireless system with transmitter having multiple transmit antennas and combining open loop and closed loop transmit diversities  
A wireless communication system (40). The system comprises transmitter circuitry (42) comprising encoder circuitry (44) for receiving a plurality of symbols (Si). The system further comprises a...
8014439 Communication device and communication method  
A communication device selects an optimal modulation method even when a propagation path condition is changed. In the communication device, a second communication device has a transmission path...
8014437 Low-rate long-range mode for OFDM wireless LAN  
A system for implementing an orthogonal frequency division multiplexing scheme and providing an improved range extension. The system includes a transmitter for transmitting data to a receiver. The...