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7636381 |
System and method for distributed input-distributed output wireless communications
A system for dynamically adapting the communication characteristics of a multiple antenna system (MAS) with multi-user (MU) transmissions (defined with the acronym MU-MAS), such as a...
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7633994 |
System and method for distributed input-distributed output wireless communications
A system for compensating for in-phase and quadrature (I/Q) imbalances for multiple antenna systems (MAS) with multi-user (MU) transmissions (defined with the acronym MU-MAS), such as...
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RE41027 |
Systems and methods to compensate a frequency
A satellite vehicle compensation system ( 100 ) predicts the motion of two satellite vehicles and enhances the predictions with real-time updates of one or both of the vehicles. Using feedback...
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7623879 |
Method and device for controlling radio access
A method for controlling a number of simultaneous radio connections in a communication device is presented. The control of a number of simultaneous radio connections is carried out in the...
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7599420 |
System and method for distributed input distributed output wireless communications
A system and method are described for compensating for frequency and phase offsets in a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”). For example, a method...
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7590388 |
Method and arrangement for noise variance and SIR estimation
A method and arrangement for noise variance and SIR estimation in a UTRAN Node B or User Equipment estimates the SIR (SIR (l) . . . SIR (K) ) at the output of a detector by using an estimate...
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7590392 |
Transmitter compensation
In some embodiments, a chip with a transmitter having a transmitter driver is provided. Also provided is a general compensation circuit coupled to the transmitter to generally compensate the...
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7587211 |
Method and system for adaptive multi rate (AMR) and measurements downlink adaptation
Various aspects of a method and system for adaptive multi rate and measurements adaptation may include a processor that enables computation of at least one signal level measurement for at least one...
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7586891 |
Communication network optimization tool
A method for converging on a route through a radio frequency (RF) communications network, that includes multiple nodes, includes (a) identifying all RF links between each node in the RF...
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7573945 |
System and method for joint maximal ratio combining using time-domain based signal processing
A spatial signal processing system and method are provided to optimize the received signal-to-noise ratio (SNR) at a first radio communication device based on the transmit filter at another radio...
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7567609 |
Space-time multiuser detector in mobile communication system and method thereof
A space-time multiuser detector simultaneously reduces multiple access interference (MAI) and multipath channel distortion (MCD) that are disadvantages of mobile communication systems. The...
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7561629 |
Multicarrier receiver and transmitter with delay correcting function
A multicarrier receiver that receives N carrier frequencies therein comprises N A/D converters each of which analog-digital converts a receive signal at a sample rate fs for each carrier, N...
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7552050 |
Speech recognition system and method utilizing adaptive cancellation for talk-back voice
A voice recognition system includes an adaptive filter and a subtractor. The adaptive filter generates a simulated talk-back voice y(n) by setting a filter coefficient simulating a transfer system...
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7545886 |
Method and apparatus for eye-opening based optimization
An eye opening measurement technique, that does not interrupt a receiver's normal operation, is used as a metric for optimizing any selected parameters of the receiver's operation. If eye opening...
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7539459 |
Active noise cancellation system, arrangement, and method
Noise of a noise-producing object may be at least partially cancelled by a system that emits sound at a polarity substantially opposite to a polarity of detected noise and includes a member having...
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7529548 |
Method and system for adapting a wireless link to achieve a desired channel quality
Adapting a wireless communications link between a transmitter and a receiver involves reducing the RF bandwidth of an uplink communications channel to achieve a desired channel quality. The RF...
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7525942 |
Method and apparatus for detecting interference using correlation
A system and/or a method for detecting interference using correlation may be used in a communication system to protect against, or to report the presence of, narrowband interference, which has...
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7522928 |
Dynamic EMI (electromagnetic interference) management
In one embodiment, a method is provided. The method may include determining if electromagnetic interference (EMI) is emitted by a device in one or more regions of an electromagnetic spectrum...
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7515920 |
Communication terminal unit, cell-search method, and program
In carrying out a cell search, the received-signal level (RSSI) at each frequency is measured in the first place, by implementing asynchronous detection in steps of a predetermined frequency-step...
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7508751 |
Method and apparatus for transmitting uplink fast feedback information in an OFDMA communication system
An apparatus and method for transmitting uplink fast feedback information using a fast feedback channel in an orthogonal frequency division multiple access (OFDMA) communication system. A channel...
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7493130 |
Synchronizing over a number of synchronization mechanisms using flexible rules
Two computer systems in a network each have a local store that contains a copy of a data item that is to be synchronized. One of the computer systems may be, for example, a mobile device while the...
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7489657 |
Determination and use of adaptive thresholds for received messages
A method is disclosed that includes measuring, during a measurement period, values corresponding to noise and interference signals received from a channel. The measurement period coincides with a...
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7486933 |
Multi-path interference removing for wireless relay system apparatus and method using by same channel frequency
Embodies of peripheral a wireless relay system apparatus and method for a multi-path interference removing using by same channel frequency is shown and described, which purpose of the present...
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7477635 |
Platform noise mitigation in OFDM receivers
Techniques and structures are presented for use in mitigating the effects of platform noise within a wireless device.
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7477876 |
Variable rate channel quality feedback in a wireless communication system
A channel quality feedback method for wireless transmission is described in which the rate for reporting channel quality information from a mobile station to a base station is variable as a...
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7471934 |
Transmitter method, apparatus, and frequency plan for minimizing spurious energy
A translational-loop transmitter includes a local oscillator (LO) generator for generating first and second LO signals, a modulator for generating a modulated reference signal using the second LO...
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7466989 |
Synchronization method for terminal-to-terminal direct communication in time division duplex mobile communication system
A method for the terminal-to-terminal direct communication in the TDMA mobile communication system includes the following steps when making use of the uplink timeslots of the normal communication:...
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7460829 |
Wireless communication system
A wireless communication system capable of keeping a level of a wireless signal received by a relay apparatus within a predetermined dynamic range. In a control apparatus, a transmitting section...
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7460879 |
Mobile communication system, mobile terminal, transmit power control method in a mobile terminal, and program
A method of performing transmit power control is performed based on ISCP which a mobile terminal calculates from a downlink received signal. A transmission/reception unit of the mobile terminal...
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7447511 |
Method and device for equalizing mode selection
A method and a device for equalizing mode selection are disclosed. The method comprises steps of: providing first sampling pulses in response to an equalized signal; providing second sampling...
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7444169 |
Wireless base station apparatus and wireless communication control method
A wireless base station apparatus ( 100 ) used in a wireless communications system includes a statistical processing unit ( 140 ) that performs statistical processing on downlink radio quality...
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7444121 |
Methods and apparatuses for reducing interference using frequency division multiple access
Methods, systems, and apparatuses are described which are capable of mitigating interference between piconets. Devices on a piconet may detect a certain degree of interference. When this...
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7440508 |
System and method for cellular communications
A a system for allocating subcarriers to subscribers, comprising a subcarriers allocation controller, connected to a subcarrier modulation unit in a transmitter and to a subcarrier demodulation...
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7440766 |
Method for employing multipath propagation in wireless radio communications
A method of employing multipath propagation in wireless radio communications uses an omnidirectional transmitting/receiving antenna at one end of a transmission link to send an interrogating signal...
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7433348 |
Time division multiplexing protocol for wireless networks
A multi-node time division multiplexing (TDM) system is disclosed. The improved method and apparatus utilizes an asynchronous synchronization packet (ASP) to synchronize the timing in all the nodes...
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7430426 |
Apparatus, and associated method, for selectably delaying synchronization of database copies in a radio communication system
Apparatus, and an associated method, for selectably delaying performance of synchronization operations in which database copies are placed in match with one another. A user of a mobile node at...
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7428280 |
Receiving apparatus and transceiver
The present invention has a N pieces of receiving antennas, a propagation path characterization estimator, a weight generator for interference canceller, an array processing interference canceller,...
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7426374 |
Combination of high-side and low-side current sensing in system for providing power over communication link
A system for supplying power to a load over a communication link has high-side current sensing circuitry for measuring a high-side current value, low-side current sensing circuitry for measuring a...
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7421280 |
Wireless network and wireless access terminals using enhanced SYNC—ID parameter
A mobile station capable of determining a SYNC_ID parameter for a base station serving said mobile station comprises: (i) a memory capable of storing prefix information and an associated SYNC_ID...
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7421279 |
Method, system and apparatus for improving reception in multiple access communication systems
An apparatus, system and method for improving the SNR of a desired signal received at a receiver in a multiple access communication system is disclosed. The apparatus, system and method subtracts...
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7406327 |
System that adapts power for minimizing the total amount of transmitted power within a wireless communications network and related method
A system adapts power for minimizing the total amount of transmitted power in a wireless communications network. A transmit station transmits a communications signal requesting a response from...
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7380028 |
Robust delivery of video data
The systems and methods described herein relate to the robust delivery of data. A transmitter (e.g. a server or RF broadcaster) passes parameters to a receiver and/or client enabling operation of a...
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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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7362828 |
Method of and system for optimizing the capacity of a digital communication system in presence of both internal and external noise
A method of optimizing a communication system for receiving and processing an input communication signal includes selecting a first noise margin m to be applied against an external noise present on...
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7352712 |
System and method for detecting a delay in a computer network
Described is a system comprising a computing device, a wireless computing unit and a network management arrangement (“NMA”). The NMA receives a first signal and a second signal from the...
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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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7346310 |
Method for verifying anti-scrambling efficiency of a communication system
A method for the verification of anti-jamming in a communications system comprises several sensors or adaptive antennas, comprising at least the following steps:
estimating the mean power...
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7343170 |
System and method for allowing nodes in a wireless communication network to access multiple channels
A method for allowing a node in a wireless communication network to access time slot assignment information on multiple channels includes assigning the node to a first channel associated with a...
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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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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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