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7599663 |
Apparatus and method for measuring signal quality of a wireless communications link
An apparatus comprises a link interface to receive an OFDM symbol from a communications link. A signal-to-noise ratio estimation unit generates an estimate of a geometric signal-to-noise ratio for...
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7546104 |
Receiving apparatus and receiving circuit
The invention arranges an auxiliary antenna in the neighborhood of an antenna, and a voltage applied to the auxiliary antenna is changed based on the reception quality of a received signal received...
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7546088 |
Method and apparatus for blending an audio signal in an in-band on-channel radio system
A method for processing a composite digital audio broadcast signal to mitigate intermittent interruptions in the reception of the digital audio broadcast signal, the method comprising the steps of...
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7545773 |
Multiple media access control apparatus and methods
Embodiments of twin media access control apparatus and methods are generally described herein. Other embodiments may be described and claimed. The present arrangement provides for eliminating a...
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7542530 |
Apparatus and method for controlling a digital automatic gain controller in an orthogonal frequency division multiple access communication system
An apparatus and method for controlling a digital AGC in a communication system in which power changes significantly from frame to frame. In the digital AGC controlling apparatus, an SNR estimator...
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7536158 |
Impairment correlation estimation in a spread spectrum system
A method and apparatus derives an impairment correlation matrix to process signals received at a wireless receiver over multiple paths of a multi-path channel. The receiver includes first and...
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7536154 |
Reliability detection of channel quality indicator (CQI) and application to outer loop power control
A method for improving the reliability of a channel quality indicator (CQI) message in a wireless communications network begins with receipt of the CQI message. The CQI message is then decoded, and...
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7493092 |
Wireless transceiver having plural transmission methods
In a MIMO wireless transceiver, priority control that judges priority of transmit data and a transmission mode table are provided to control an option as to which transmission system SDM or STBC is...
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7489913 |
Method for controlling diversity receivers in a wireless communication device
A method for controlling diversity receivers in a wireless communication device includes the steps of: determining if the wireless communication device is experiencing poor coverage ( 220 ), using...
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7480517 |
Method of power control in a wireless communication system
A method of power control in a 3G wireless communication system ( 100 ) incorporating fast forward power control, may include setting an initial base station transmit power boundary ( 402 ) and an...
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7480493 |
Bit detection using code spectrum transform techniques for interference cancellation
Spreading code detection methods applying autoregressive spectrum estimation (ARSE) techniques to code division multiple access (CDMA) wireless communication systems allowing the subscriber device...
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7474644 |
Adaptive uplink/downlink timeslot assignment in a hybrid wireless time division multiple access/code division multiple access communication system
A hybrid time division duplex/code division multiple access communication system comprises a radio network controller coupled to a plurality of Node-Bs. The radio network controller comprises a...
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7463888 |
Wireless communication terminal and a method of communication using the wireless communication terminal
A wireless processing section has modulation/demodulation circuits which contain communication protocols used for a plurality of communication systems. A communication control section performs an...
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7463644 |
Self-configuring physical carrier sensing threshold adaptation
Apparatuses and methods for dynamically adjusting carrier sensing threshold levels in a wireless, such as CSMA, system. A station may use the carrier sensing measurement made in normal CSMA...
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7436793 |
System and method for effectively performing a transmit power adjustment procedure
A system and method for effectively performing a transmit power adjustment procedure in a wireless network includes a forward receiver that monitors a wireless forward link for forward data that is...
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7421261 |
Blind detection
The present invention relates to a blind detection of a received signal having at least one property, which initially is unknown to the receiver, however, limited to a finite set of alternatives...
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7408902 |
Method of using a radio network controller for controlling data bit rates to maintain the quality of radio links
A wireless communication method and system for controlling the current data bit rate of a radio link (RL) to maintain the quality of the RL. The system includes a core network (CN), a radio network...
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7394783 |
Device and methods for increasing wireless connection speeds
Systems and methods may operate to increase the throughput of a wireless connection by passing a wireless signal from a communications subsystem to an application subsystem for physical layer...
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7392016 |
Data transmission rate control
A method includes monitoring a variable-rate data communication channel to determine its signal-to-noise ratio, and adjusting the data transmission rate of the variable rate data communication...
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7389092 |
Circuitry for a receiving system with improved directivity and signal to noise ratio
A receive system, including special integrated circuits, for providing enhanced directivity in the form of a narrowed receive beam and a relatively small antenna with performance comparable to a...
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7386277 |
Communication system and method for increasing communication efficiency
A mobile communication system capable of increasing communication efficiency and a method therefor are provided, including a receiver for grouping n MCS levels (where n>0) into continuous m MCS...
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7369832 |
Receiving diversity apparatus and method of mobile station for high data rate type mobile communication system
A receiving diversity apparatus and method for a mobile station in an HDR mobile communication system measures C/I values of pilot channels on respective antennas, measures a C/I value of in-phase...
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7369823 |
Reception apparatus
A comparison circuit 13 x compares signals from demodulator circuits 11 a and 11 b and thereby compares the reception condition of the antennas 1 a and 1 b . The tuner circuit...
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7366663 |
Measuring a talking quality of a telephone link in a telecommunications network
For measuring the influence of noise on the talking quality of a telephone link in a telecommunications network, a talker speech signal (s(t)) and a degraded speech signal (s′(t)) are fed to an...
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7366263 |
Radio communication terminal and radio signal receiving method
When a radio communication terminal including an AGC receiver starts, a set gain of the AGC receiver is switched in a short updating period. At this time, the terminal switches among antennas, and...
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7366143 |
Diversity receiving radio base station with high reception sensitivity and high time slot utilization efficiency
The present invention aims to provide a radio base station that has equivalently high reception sensitivity without increasing the number of antenna elements while keeping the utilization...
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7366137 |
Signal-to-noise estimation in wireless communication devices with receive diversity
This disclosure is directed to techniques for estimating signal-to-noise ratio (SNR) of signals received by a wireless communication device. The techniques take advantage of spatial receive...
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7359689 |
Wireless receiving method
A wireless receiving method includes calculating a transmission channel response from a reception signal and a reference signal, determining reliabilities of a plurality of transmission channel...
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7353002 |
Measuring a talking quality of a communication link in a network
Device and method for measuring a talking quality of a communication link in a communications network ( 10 ). The device comprises measurement means ( 22; 31, 36 ) connected to the communication...
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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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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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7330707 |
Hetrodyne receiver and IC
In a heterodyne receiver, the effect of an image interference signal that occurs in a case where a low intermediate frequency is used is alleviated. Circuits ( 12 I), ( 12 Q), ( 13 I), ( 13 Q), and...
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7317760 |
System and method for finger and path management in receivers
System and method for managing finger and path resources. A preferred embodiment comprises receiving a delay profile, processing paths from the delay profile, placing the processed paths into a...
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7310503 |
Diversity reception device and diversity reception method
The circuit size of a diversity receiver for an orthogonal frequency division multiplexing signal is reduced, and the diversity effect is increased, by providing a power ratio comparator that...
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7292556 |
CDMA radio device and simple path estimating method employed therefor
A CDMA radio device is provided which is capable of reducing a hardware scale and providing more accurate path selection with low power consumptions. A down-sampling part outputs data of which...
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7277686 |
Antenna and frequency diversity receiving apparatus
An apparatus determines an optimal antenna and frequency combination by selecting the optimal antenna from among a plurality, N, of antennas associated with a receiver and also selects the optimal...
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7277679 |
Method and apparatus to provide multiple-mode spatial processing to a terminal unit
Methods and apparatuses, including computer program products, for spatial processing in a remote terminal unit. One embodiment is a wireless remote terminal receiver in a wireless terminal unit for...
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7277674 |
Data monitoring system and method using a single time axis with time information provided by a GPS receiver
A data monitoring system in communication network has the global position system (GPS) receiver, a packet data collecting device and a mobile station-packet data serving node monitoring system...
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7272372 |
Diversity antenna apparatus and diversity antenna control method
A diversity antenna apparatus has N (N is 3 or more integer) elements of antennas which receive radio signals, a priority storage unit configured to store priority data of the N elements of...
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7269397 |
Method and apparatus for measuring communications link quality
A method and apparatus for measuring communications link quality provides accurate on-chip estimation of the difficulty of achieving a particular bit error rate (BER) for a communications link. A...
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7269396 |
Method and device for suppressing multipath interference in a receiver for electromagnetic waves
A method and a device for a receiver for electromagnetic waves having at least two antennas are described; using this method and this device it is possible to effectively suppress multipath...
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7260370 |
Wireless communication system using a plurality of antenna elements with adaptive weighting and combining techniques
The present invention provides a method and system for operating a wireless communication system in which received signals from a plurality of antennas are weighted and combined with a beam forming...
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7254129 |
Wireless phone and wireless communication method
Disclosed are a wireless phone and a wireless communication method wherein communication quality estimation is made for both circuit switching and packet communication modes and sound of both the...
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7239885 |
Initial downlink transmit power adjustment for non-real-time services using dedicated or shared channel
A method for initial downlink transmit power adjustment for non-real time services in a wireless communications network begins by estimating an initial downlink transmit power level for...
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7236740 |
Data retransmission apparatus and method in a mobile communication system employing HARQ technique
A method and apparatus for retransmitting data in a mobile communication system wherein a receiver determines whether an initial data block received from a transmitter has an error. Upon detecting...
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7224726 |
System and method for terrestrial high-definition television reception
An adaptive receiver is disclosed for optimally receiving and processing signals. The receiver utilizes one or more memory blocks to store groups of incoming symbols. The groups of symbols are...
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7221412 |
Digital broadcasting receiver and channel information registration processing method in digital broadcasting receiver
Disclosed in a digital broadcasting receiver comprising first means for performing pre-scan processing for successively tuning in on channels previously set, to examine whether or not a received...
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7212793 |
Radio reception apparatus and radio reception method
A radio reception apparatus is a radio reception apparatus for demodulating a multicarrier signal modulated according to multicarrier modulation. It includes a plurality of antenna sections, each...
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7212749 |
Signal receiver having wide band amplification capability
An Improved Signal Receiver Having Wide Band Amplification Capability is disclosed. Also disclosed is a receiver that is able to receive and reliably amplify infrared and/or other wireless signals...
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7187912 |
Apparatus and method for wireless local area network (LAN) antenna selection
A radio frequency transceiver for a wireless local area network (LAN) may have two or more antennae. An active antenna that delivers a data-bearing signal having a signal quality at least as good...
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