Qualcomm Incorporated

Christopher Cooper Riddle

Jeffrey Alexander Levin

Nitin Kasturi

Serguei A Glazko

Parvathanathan Subrahmanya

Franklin Peter Antonio

Chih-Ping Hsu

Nate Chizgi

Prashant Udupa Sripathi

Atul Arvind Salvekar

Hyukjun Oh

Tom B Sherman

Siva Sandeep Dhandu

Sharad Deepak Sambhwani

Luca Blessent

Jon James Anderson

Daniel Fred Filipovic

Seong-Ook Jung

Da-shan Shiu

Messay Amerga

Lew G Chua-Eoan

Andrew Sendonaris

Charles James Persico

Thomas R Toms

Harish Venkatachari

Chunlei Shi

Boris Andreev

Angelica Wong

Alex Kuang-Hsuan Tu

Walid M Hamdy

Bruce A Judson

An-Swol Clement Hu

Justin Joseph Rosen Gagne

Alex Tu

Jeffrey Shabel

Robert Fuchs

Quaeed Motiwala

Jiangxin Chen

Srividya Kunisetti

Chandra Ramabhadra Murthy

Tien-Chien Chen

Shih-Yi Yeh

David P Oses

Thomas B Sherman

Thomas R Sherman

Jeffrey D Shabel

Disclosed are an apparatus and method for assessing decode reliability of voice, data and control channel transmissions. In an aspect, the apparatus and method are configured to receive one or more radio frames or parts of a frame on a downlink channel; demodulate the received one or more frames or parts of the frame; decode the demodulated one or more frames or parts of the frame; compute one or more demodulator-based metrics and one or more decoder-based metrics; combine the one or more demodulator-based metrics and the one or more decoder-based metrics using a reliability function that assesses reliability of the decoded one or more frames or parts of the frame; and accept or reject the decoded one or more frames or parts of the frame based on the assessment of the reliability of the decoded frames or parts of the frame.

Apparatus and method for assessing decode reliability of radio transmissions

Disclosed are methods and apparatus for reducing UE's power consumption by controlling early decoding boundary. In one aspect, a UE is configured to receive a data or voice frame from a base station. The UE selects one or more quality metrics for determining decoding boundary of the received frame and computes the selected one or more quality metrics. The UE then determines a decoding boundary for the frame based on one or more computed quality metrics. The UE then decodes the received frames at the determined decoding boundary and determines whether the decoding of the frame was successful. If the early decoding of the frame was successful, the UE may terminate reception of the frame. If the early decoding of the frame was unsuccessful, the UE may adjust the decoding boundary and decodes the frame at the adjusted boundary.

Apparatus and method for reducing UE's power consumption by controlling early decoding boundary

A data module operable in a wireless communication system is provided. The data module comprises a plurality of circuit components, one or more temperature sensors, and a thermal management unit. The temperature sensors are configured to determine the temperature of a corresponding circuit component. The thermal management unit is configured to determine one or more thermal characteristics of the data module based on the temperature determinations, and to generate one or more power control point signals indicating whether to adjust corresponding operating characteristics of a target component based on the determined thermal characteristics.

Thermal management for data modules

A method for managing energy usage of a wireless device during a data transfer in a wireless communication network comprises determining a data rate associated with the data transfer, determining data processing requirements for processing data at the determined data rate, and dynamically adjusting, based on the determined requirements, one or more data processing parameters corresponding to the data transfer.

Energy management for wireless devices

A method of a method of adjusting an intensity of a backlight of a display is disclosed. The method includes dimming a backlight that illuminates a display of an electronic device in response to a task initiated by a user. The method also includes, prior to the task completing, automatically adjusting an intensity of the backlight based on a progress of the task.

Adjusting backlight intensity based on a progress of a task

A wireless device achieves good performance using a crystal oscillator that is not compensated for temperature. The crystal oscillator provides a reference signal having a temperature dependent frequency error. A control unit estimates the frequency error (e.g., based on a received pilot) and provides a frequency error estimate. A clock generator generates a digital clock, which tracks chip timing, based on the reference signal and the frequency error estimate. A receiver frequency downconverts an input RF signal with a receive LO signal having the frequency error and provides an analog baseband signal. An ADC digitizes the analog baseband signal based on a sampling clock having the frequency error and provides ADC samples. A re-clocking circuit re-clocks the ADC samples based on a digital clock and provides data samples. A digital rotator frequency translates the data samples based on the frequency error estimate and provides frequency-translated samples centered near DC.

Wireless device with a non-compensated crystal oscillator

Techniques for detecting acquisition of a false channel in a wireless communication system are described. For false channel detection, a peak corresponding to a signal from a base station is initially detected. Frequency acquisition and time tracking of the peak are then performed. The frequency acquisition attempts to determine and correct downconversion frequency error. The time tracking attempts to follow the peak as it moves due to sample timing error and/or changes in channel conditions. Whether the signal is from a desired frequency channel or a false frequency channel is determined based on the time tracking. If a false channel is acquired, then the sampling timing will be either too slow or too fast, and the peak will move at a fast rate. A false channel may be detected based on the movement of the peak.

False channel detection for wireless communication

A device is disclosed that includes a first pin to supply power to a first power domain of an integrated circuit, a second pin to supply power to a second power domain of the integrated circuit, a switching regulator and a controller. The switching regulator is coupled to the first pin to provide a first regulated power supply to the first power domain and is coupled to the second pin to provide a second regulated power supply to the second power domain. The controller is coupled to the first pin and to the second pin to selectively reduce current flow to at least the second pin during a low power event.

System and method of power distribution control of an integrated circuit

Techniques are provided to control the transmit power for data transmission on multiple transport channels having different signal quality (SIR) targets. A single SIR target is maintained for all transport channels, and this SIR target is adjusted based only on active transport channels. For each update interval, a data processor processes at least one data block received in the current update interval on at least one of the transport channels and provides the status of each received data block. A controller increases the SIR target based on an up step if any received data block is erased and decreases the SIR target based on a down step if all received data blocks are good. If any received data block is erased, the down step used to adjust the SIR target may be set to the smallest down step size required by all transport channels with erased data blocks.

Power control for multiple transport channels in a wireless communication system

The frame of data is partitioned into a plurality of portions of data symbols. A plurality of channel elements is assigned to demodulate data symbols of correspondingly the plurality of portions of data symbols. The number of the plurality of portions of data symbols is higher in a case at high data rate than a case at low data rate.

Method and apparatus for efficient use of communication resources in a communication system

The reliability of transmit power control (TPC) commands received from a transmitter is determined based on a TPC target value. The TPC target value is derived based on a TPC threshold and possibly a weight, depending on the receiver implementation. A received TPC command is considered reliable if its absolute value exceeds the TPC target value. Received TPC commands deemed as unreliable are discarded and not used for power control. Multiple TPC target values, used for detecting UP and DOWN commands, may be derived with multiple scaling factors. For a receiver in soft handover and receiving TPC commands from multiple transmitters, a different TPC target value may be derived for each transmitter. The received TPC commands for each transmitter are compared against that transmitter's TPC target value. Received TPC commands deemed as unreliable are discarded and not combined.

Reliability determination and combining of power control commands received in a wireless communication system

A novel mobile unit which communicates with a new and advantageous base station. The mobile unit includes a system for generation of position information and a transceiver for transmitting the position information. In the preferred embodiment, the transceiver is a CDMA system and the system for generating position information includes an arrangement for receiving a GPS signal. In the preferred embodiment, a GPS assisted arrangement is employed which is adapted to receive a signal from an airborne platform as well as from a satellite based platform. The inventive base station is adapted to receive position information from a remote unit and provide a received position signal in response thereto. The novel base station is further equipped with a mechanism for directing a beam in response to the received position signal. In the illustrative embodiment, the mechanism for directing the beam is a smart antenna system including an antenna array and a beamforming network for driving the array to output the directed beam.

Method and apparatus for using position location to direct narrow beam antennas

The invention provides the ability to exploit redundancy characteristics of an equation set used to generate waveforms for wireless communication. In doing so, the invention can reduce the number of correlation values that need to be calculated in order to determine the most likely transmitted code word. In particular, the invention can exploit the redundancy characteristics of the equation set in a novel and unique fashion by separating the vector and calculating partial correlations for each separated portion of the vector. The techniques can drastically reduce the number of correlation values that need to be computed for demodulation, and can also reduce the total number of computations. In this manner, the demodulator of a wireless communication device can be simplified without negatively impacting performance.

Demodulating encoded data

A phase lock loop apparatus and method is disclosed. A typical apparatus includes a demodulator receiving a phase error signal from a comparator at a chip rate and providing a phase error update over a symbol period from the phase error signal wherein the chip rate is higher than the symbol rate. A phase discriminator produces a phase error output at the symbol rate from the phase error update based upon a signal modulation type. A loop filter produces one or more phase estimate parameters at a symbol rate from the phase error output and a numerically controlled oscillator (NCO) extrapolates a phase reference at a chip rate from the one or more phase estimate parameters at a symbol rate. The comparator produces the phase error signal to the demodulator based upon the phase reference and an incoming signal.

Decision directed suppressed carrier symbol-rate PLL with programmable phase discriminator and chip-rate phase extrapolation

A wireless communication device performance, such as standby time, is improved by adaptively allocating surplus system resources to change quick paging channel parameters at the system, such a system being for example, a base station. Adaptively adjusting the quick paging channel parameters allows available base station resources to be allocated to the quick paging channel, thereby enabling the wireless communication device to demodulate the quick paging channel more reliably. Parameters such as the number of quick paging channels, the data rate used by the paging channel, and the quick paging channel transmit power level are weighed and adjusted.

Techniques for adjusting parameters of a quick paging channel based on network load

Growing community of inventors

San Diego, CA, United States of America

Christopher Cooper Riddle