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8401052 Method for detecting signals based on despreading and method for transmitting signals for the same  
A method for detecting signals based on despreading and a signal transmitting method for the same are provided. Signals are spread according to the size of at least one spreading band, which is...
8401099 Method of transmitting control signal in wireless communication system  
A method of transmitting a control signal in a wireless communication system includes allocating a first sequence to spread a first control signal in a radio resource, allocating a second sequence...
8391336 Variable length ranging and direction-finding signals constructed from bandlimited kernels and sparse spreading sequences  
To generate a pulse for ranging, a kernel is convolved with a spreading sequence. The spreading sequence is parametrized by one or more ordered (length, sparsity) pairs, such that the first...
8385385 Permission-based secure multiple access communication systems  
Systems (100) and methods for selectively controlling access to multiple data streams which are communicated using a shared frequency spectrum and spreading code. The methods involve forming a...
8385470 Coding a signal with a shuffled-Hadamard function  
A method can include receiving, at an electronic transmitter device, for communication to an electronic receiver device, a first data value corresponding to one of a plurality of predetermined...
8379777 Multicode transmission using walsh hadamard transform  
A symbol sequence contained in a received signal comprising a cyclic convolution of a Walsh code multiplexed signal and a channel impulse response of a multipath channel is detected using Walsh...
8374218 Combining signals with a shuffled-hadamard function  
A method can include receiving, at a transmitter, during a symbol time that comprises a plurality of chip times, a data value for each of a plurality of distinct data channel inputs. During each...
8374217 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Permission-based multiple access communications systems
 
Systems (100) and methods (400) for selectively controlling access to multiple data streams which are communicated using a shared frequency spectrum and shared spreading codes. The methods involve...
8369793 Channel-dependent scheduling and link adaptation  
A mobile terminal measures interference over multiple measurement periods and generates interference probability data based on the statistical distribution of the interference measured. The...
8369380 Transmitter, receiver, and mobile communication system  
A transmitter includes: spread code multiplying means that multiplies a symbol indicating a reference signal by spread code to generate a chip sequence after spreading; chip pattern generation...
8363696 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...
8359041 System and method for adaptively controlling feedback information  
A system and method for adaptively controlling feedback information according to a loading condition of a communications cell is provided. A method comprises receiving an indication from a base...
8355666 Apparatus and method for interference-adaptive communications  
In embodiments, an adaptive tone erasure technique is applied to orthogonal frequency division multiplexing (OFDM) communications, such as ECMA-368 standard ultra-wideband (UWB) communications. A...
8351484 Communications system employing chaotic spreading codes with static offsets  
Methods for code-division multiplex communications. The method involve generating orthogonal or statistically orthogonal chaotic spreading codes (CSC1, . . . , CSCK) having different static...
8345597 Systems and methods for detecting spread spectrum signals in an area of interest  
Systems and methods are provided for detecting and geo-locating a target transmitting a CDMA or other spread-spectrum signal within an area of interest. Targets are identified by...
8340160 Dynamic combining threshold for a rake receiver  
Described is a method that includes receiving a signal through a channel; considering at least one channel-related criterion and, in response to the considered at least one channel-related...
8340587 Channel quality feedback mechanism and method  
Methods and apparatus are presented for improving the feedback of channel information to a serving base station, which allows a reduction in the reverse link load while allowing the base station...
8331478 Transmit diversity using low code rate spatial multiplexing  
A system is provided for transmitting a low code rate spatially multiplexed channel on multiple antennas. The system includes a transmitter and a processor. The processor is configured such that...
8331417 Energy efficiency in wireless communication systems  
Wireless communication systems and methods utilize one or more remote terminals, one or more base terminals, and a communication channel between the remote terminal(s) and base terminal(s). The...
8331342 Apparatus and method for switching between single user and multi-user MIMO operation in a wireless network  
A base station for use in a wireless network, wherein the base station transmits in a downlink to a plurality of subscriber stations using a plurality of antennas according to a multiple input,...
8331419 Efficient physical layer preamble format  
A method for generating a preamble of a data unit for transmission via a communication channel includes generating a first field of the preamble using one of a first sequence or a second sequence,...
8325783 Spreading code optimization based on quality factors  
What is disclosed is a method of operating a communication system. The method includes receiving a request to initiate a communication session with a wireless communication device, wherein the...
8325782 Method and apparatus for using empty time slots for spread spectrum encoding  
Communication circuitry uses a combination of Pseudo-Noise (PN) coded and non-PN coded transmission periods to represent different data values. In one embodiment, a number of data values are...
8320483 Radio transmission apparatus, radio reception apparatus, radio transmission-reception system, and method thereof  
A radio transmission apparatus for transmitting a first radio signal and a second radio signal with different communication system, the apparatus includes: a first transmission unit which...
8320434 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...
8315317 Radio communication system, transmitter, receiver and radio communicating method  
A radio communication system having a radio transmitter and a radio receiver and adopting multiple carrier modulation and code spreading modulation methods is disclosed. The radio communication...
RE43812 Multiple-input multiple-output (MIMO) spread-spectrum system and method  
A system and method for transmitting a plurality of spread-spectrum signals over a communications channel having fading. The plurality of spread-spectrum signals are radiated by a plurality of...
8306092 Spreading sequences with dual low correlation windows for quasi-synchronous code-division multiple-access communications  
Sequence generation in wireless communication is provided for sequences having good aperiodic correlation properties. In particular, dual window quasi-Barker sequences are generated that possess...
8306091 Method and arrangements for noise rise estimation  
An arrangement (90) for noise rise estimation in a wireless communication system comprises a power measuring means (45) for measuring received total wideband power. A means (52) for computing...
8300744 Apparatus for rejecting image in receiver  
The present invention relates to an apparatus for rejecting images in a receiver. The apparatus of the present invention relates to an apparatus for rejecting image signals in a receiver of a...
8295324 Method of processing a digital signal derived from a direct-sequence spread spectrum signal and a receiver  
Complex digital data values derived from a DSSS signal, in particular, a GNSS signal, are delivered to a general purpose microprocessor at a rate of 8 MHz and chip sums over eight consecutive data...
8295415 Interference characterisation and removal  
A method of evaluating the usage in a received signal of codes from a tree of codes that can be used to orthogonalise communications signals, the method including testing to determine if a given...
8279967 CDM signal transmitter with modulators reduced in number and a method therefor  
A code division multiplex signal transmitter includes an operational circuit, a modulator unit and a multiplexer. The operational circuit adds up input transmission data on channels to produce...
8275019 Transmitting and receiving schemes for multiuser single-carrier space time spreading with frequency domain equalization  
Examples are disclosed for transmitting and receiving schemes for multiuser single-carrier space time spreading (STS) with frequency domain equalization.
8270455 Wireless communication system  
In a wireless communication system, a portable device and an in-vehicle device wirelessly communicate with each other by a spread spectrum method. The in-vehicle device transmits a synchronization...
8265118 Code-modulated path-sharing multi-signal systems  
Described herein are code-modulated multi-signal systems. In one embodiment, a multi-signal system receives multiple input signals and code-modulates each input signal with a unique code to...
8259773 Method and apparatus for multiplexing code division multiple access and single carrier frequency division multiple access transmissions  
The present invention provides a method and apparatus for multiplexing code division and frequency division transmissions. One embodiment of the method includes accessing at least one first symbol...
8254974 Method for facilitating transmission of data in a communication system  
A method for facilitating transmission of data in a communication system is provided herein. In operation, a base radio of a plurality of base radios combines status information corresponding to a...
8254514 Early-late gate timing recovery  
An early-late gate based ADC timing approach is described for performing early-late gate timing recovery despite the presence of multipath signal distortion. Multipath conditions may severely...
8249883 Channel extension coding for multi-channel source  
A multi-channel audio decoder reconstructs multi-channel audio of more than two physical channels from a reduced set of coded channels based on correlation parameters that specify a full power...
8243774 System and method for information scrambling in a wireless communication system  
The present disclosure relates generally to a system and method for scrambling in a wireless communication system. In one example, the method includes receiving a bit group representing at least a...
8238483 Signaling of dedicated reference signal (DRS) precoding granularity  
A method for communication includes receiving in a receiver signals, which include one or more dedicated reference signals and are transmitted from a transmitter over a communication channel in...
8238407 High-frequency wireless peripheral device with auto-connection and auto-synchronization  
Automatic establishment of a connection between a human interface device and a host transceiver unit. A marriage ID is exchanged in a synchronization step. The marriage ID being used by both the...
8238406 Time-hopping sequence for burst mode communications  
A method consisting of determining, by a symbol mapper, whether a previous burst position is below a threshold, wherein the previous burst position defines a location within a previous symbol. A...
8233565 Method and system for high speed wireless data transmission between communication devices  
Herein described are at least a method and a system for transmitting high speed wireless data from a first communication device to a second communication device. The method comprises using a first...
8228164 Remote control system for car-mounted device  
A remote control system for a car-mounted device capable of realizing communication performance required for a keyless function and communication performance required for a smart function while...
8229012 Structured codebook for 4TX multiple antenna systems  
Methods and apparatus are disclosed for applying successive multi-rank beamforming strategies (e.g., successive precoding strategies) for the design of precoders over a set of parallel channels....
8223817 Method and arrangement for frequency hopping in wireless communication systems with carriers of varying bandwidth  
The present invention relates to frequency hopping in wireless communication systems utilizing single-carriers with varying bandwidth. Frequency hopping is made possible by dividing the available...
8223818 Integrated circuit for response signal spreading  
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)...
8223821 Uplink signal detection in RF repeaters  
A method for detecting an IS-95 signal without knowledge of a spreading code for the IS-95 signal is provided. A received baseband signal is rotated through a plurality of phase-shifts. For each...