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7616965 |
Method and apparatus for calculating a device location
A method and apparatus for calculating a location of a device is provided. A likelihood of the device being located at a particular location point or a particular location floor is determined using...
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7616677 |
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 apparent...
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7613226 |
Method and apparatus for transferring signals in a wireless communication system
Data is transferred in a wireless communication system, such as a wireless spread spectrum communication system. A plurality of transmitting antennas are provided. Data is encoded to produce a...
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7613225 |
System and method for secure communication of collected amphibious data
A system for secure communication of collected data is provided. The system comprises a data dissemination subsystem, the data dissemination subsystem operable to store and disseminate collected...
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7613158 |
Method of quadrature spreading
The invention provides a method of quadrature spreading suited for use in a software implementation of a code division multiple access communication (CDMA) system. The method includes providing for...
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7609751 |
Method and apparatus to initiate communications between an unknown node and an existing secure network
A first node initiating communications with a second node already in a secure network sends a discovery burst having a preamble portion and a payload portion. The preamble portion is sent at a...
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7609750 |
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...
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7609749 |
Method and apparatus for generating non-recursive variable rate orthogonal spreading codes
A method for constructing and selecting non-recursive orthogonal variable spreading factor (OVSF) codes is provided. The method includes: defining a variable B=SF max /SF min , where SF max is a...
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7609748 |
Method, system and apparatus for maximizing a jammer's time-on-target and power-on-target
A system and method of electronic signal jamming employ a jamming signal transmitter, an electronic signal tuner and a controller. During a first time period, the transmitter transmits a jamming...
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7606567 |
Channel allocation for burst transmission to a diversity of satellites
A method for allocating transmission channels to devices configured to communicate short data packets to a diversity of non geostationary satellites is disclosed hereby. The method suggests a...
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7599665 |
Selection of radio resources in a wireless communication device
The invention relates to a method for selecting radio resources for a communication session in a wireless communication terminal. In order to facilitate the selection of quality of service between...
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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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7596166 |
Integrated circuit device including a spectrum spread clock generator, method for controlling the device, and ink-jet recording apparatus including the device
An integrated circuit device is provided including a plurality of circuit blocks which operate based on a clock signal. The quartz oscillation circuit outputs a first clock signal. A spectrum...
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7586977 |
Transmission power control method, mobile station, and radio network controller
A transmission power control method for controlling transmission power of an enhanced dedicated physical data channel for transmitting uplink user data, includes: storing, at a mobile station, a...
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7583745 |
Exploiting selection diversity in communications systems with non-orthonormal matrix and vector modulation
The invention relates to methods for scheduling at least one out of K transmission channels k with respective N t,k transmission interfaces and respective N r,k reception interfaces for the...
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7580400 |
Apparatus and method for generating preamble signal for cell identification in an orthogonal frequency division multiplexing system
Disclosed are an apparatus and a method for generating a preamble signal for cell identification in an OFDM mobile communication system. The method includes the steps of generating a Walsh code...
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7577180 |
Method and system for maintaining synchronization in low-power mode over a frequency hopping radio link
Systems and methods for maintaining synchronization of a base unit and a portable unit in a low-power mode are provided. The base unit and the portable unit communicate with each other via wireless...
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7555028 |
Method and system for defining additional spread spectrum channels within a coverage area of an existing wireless network
A method and system for defining additional spread spectrum channels within a coverage area already served by an existing wireless network. A first spread spectrum channel may be defined by a first...
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7551898 |
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 to...
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7539235 |
Matched filter for scalable spread spectrum communications systems
A spread spectrum communications system using long, scalable PN sequences to achieve variable communication rates using a low-complexity and scalable matched filter architecture to provide a large...
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7535950 |
Blind selected mapping techniques for crest factor reduction of forward link CDMA signals
Disclosed are apparatus that implement blind selected mapping techniques that provide for crest factor reduction of forward link CDMA signals. Communication signals are processed using a...
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7535822 |
Synchronization of remote units for a communication network
A method for maintaining the quality of transmission from a head end to a service unit in a telecommunications system that uses a multi-carrier transmission scheme with dynamic bandwidth allocation...
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7526011 |
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...
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7519104 |
Application of spreading codes to signals
A method for applying one or more code values to an input signal value to produce an output signal value in a CDMA communications scheme, wherein the code value or values may lie only either on or...
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7519103 |
Pre-phase error correction transmitter
A CDMA communication system includes a signal processor which encodes voice and nonvoice signals into data at various rates, e.g. data rates of 8 kbps, 16 kbps, 32 kbps, or 64 kbps as I and Q...
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7519102 |
Method of assignment and transmission of spread signals in direct sequence spread spectrum CDMA mobile communication system, mobile communication system, and transmitter, receiver and transmitter/receiver of mobile communication system
The present invention relates to a spreading signal assigning method and a signal transmitting method in a direct sequence CDMA mobile communication system, a mobile wireless communication system...
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7519101 |
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...
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7515627 |
System and method for ultra-wideband (UWB) communication transceiver
An ultra-wideband (UWB) transceiver for use in UWB communication includes a voltage-controlled oscillator (VCO) configured to periodically and sequentially generate a series of base frequencies...
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7512861 |
Method for determining identity of simultaneous events and applications to image sensing and A/D conversion
A method of encoding identity of events comprises: receiving an event bit pattern having bits representative of events, and determining a code from the event bit pattern, said code containing the...
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7508860 |
Pulse signal generator for ultra-wideband radio transception and radio transceiver having the same
Provided are a pulse signal generator for UWB radio transception and a radio transceiver having the same. The pulse signal generator includes: an envelope generator generating a plurality of...
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7496145 |
Method and apparatus for reducing transmitter peak power requirements with orthogonal code noise shaping
A method and apparatus for reducing peak transmitter power includes providing a set of orthogonal communication codes for a telecommunications system that includes a set of active user codes and a...
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7480266 |
Interference adaptation apparatus, systems, and methods
Apparatus and systems, as well as methods and articles, may operate to detect radio-frequency energy at a frequency associated with at least one wireless networking channel and to transmit a data...
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7480236 |
Multipoint-to-point communication using orthgonal frequency division multiplexing and identification codes
Systems for multipoint-to-point communication using orthogonal frequency division multiplexing and identification codes are provided. In one embodiment, a system comprises: a host unit; and a...
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7474688 |
System and method for detecting multiple direct sequence spread spectrum signals using a multi-mode searcher
System and method for detecting multiple direct sequence spread spectrum signals using a multi-mode searcher. A preferred embodiment comprises the specification of a hypothesis for a particular...
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7471736 |
Frequency based modulator compensation
In a transmitter, an upconverter converts a lower frequency signal to a higher frequency signal. Prior to the upconversion, a compensator compensates for at least gain/phase distortion that will be...
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7471657 |
Method and apparatus for processing a punctured pilot channel
The punctured pilot channel comprises information symbols of uncertain sign punctured into a sequence of pilot channel symbols of predetermined sign. The apparatus includes an information sign...
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7469124 |
Rate adaptive satellite communications
A system and method for transmitting data from a satellite to a terrestrial receiving station are provided. The system comprises a satellite including a rate adaptive data receiver. The system is...
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7463700 |
Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification
A wireless communication system ( 10 ). The system comprises a user station ( 12 ). The user station comprises despreading circuitry ( 22 ) for receiving and despreading a plurality of slots...
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7457371 |
Transmission signal generating circuit and radio base station communication apparatus using the same
A transmission signal generating circuit in a radio base station that employs spread processing circuits in order to output spread transmission signals. The signal generating circuit further...
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7447270 |
Method for controlling the data signal weighting in multi-element transceivers and corresponding devices and telecommunications network
The invention relates to a method for controlling the weighting of a data signal in the at least two antenna elements of a multi-element transceiver 1 of a telecommunications network, which data...
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7440492 |
Interference canceller for CDMA mobile stations
Parallel interference cancellers are connected in successive stages. In each canceller, multiple signal paths are provided for interference replica estimators to receive multiple CDMA channels. A...
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7440487 |
Method and system of transmitting words representing transmission parameters respectively allocated to mobile stations communicating with a base station in a mobile communication system
Method for transmitting a word representative of transmission parameters respectively allocated to the mobile stations in communication with a base station of a mobile telecommunication system,...
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7440486 |
Noise shaping technique for spread spectrum communications
A spread spectrum noise shaper uses a modulation technique to achieve a greater signal-to-noise or signal-to-interference ratio (SNR or SIR). The technique doubles the system SIR, in principle....
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7437161 |
Method of fast data transmission of mobile stations via the same base station
In the method of packet transmission, data packet fragments received from a first mobile station are sent to a second mobile station without assembling and re-fragmenting the received data packet...
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7433382 |
Spread spectrum based multichannel modulation for ultra wideband communications
A spread spectrum based multichannel modulation Ultra-Wideband (UWB) communication transceiver for indoor wireless operations is presented according to some embodiments. The spread spectrum based...
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7430232 |
Method and system for broadcasting a programme
Method and apparatuses for broadcasting and receiving a programme are presented. A programme is broadcast from a broadcasting system. Broadcast programme-associated data is transferred from a...
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7426177 |
Round trip delay adjustment in multipoint-to-point communication using orthogonal frequency division multiplexing
Systems and methods for bidirectional communication are provided. In one embodiment, a method for aligning communications from a plurality of remote units in a multipoint-to-point orthogonal...
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7424046 |
Spread spectrum clock signal generation system and method
A system and method for generating a clock signal having spread spectrum modulation. The method involves generating a clock signal by generating edge positions for edges of the clock signal from a...
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7424009 |
Method of mapping chips of a spread out symbol to sub-channels of a multi-carrier transmission network
The present invention concerns a method of mapping chips of a spread out symbol to sub-channels of a group of sub-channels of a Multi-Carrier transmission channel of a Multi-Carrier transmission...
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7420506 |
Cumulant-based discriminator for GNSS code alignment
Systems and methods for a cumulant-based discriminator for global navigation satellite system code alignment are provided. In one embodiment, a method for determining a misalignment between a GNSS...
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