Intel Corporation

Leland Stanford Junior University

Elementary IP LLC

Sumeet Sandhu

Eric A Jacobsen

Alexander A Maltsev

Minnie Ho

Ali Sadri

John S Sadowsky

Nageen Himayat

Adrian Paul Stephens

Ozgur Oyman

Duncan Kitchin

Lei Shao

Arogyaswami J Paulraj

Feng Xue

William J Chimitt

Qinghua Li

Alexei Vladimirovich Davydov

Stanley K Ling

Sumit Roy

Dhananjay Gore

Xintian Eddie Lin

Shilpa Talwar

Ehud Reshef

Mark D Yarvis

Jun Shi

Ada Shuk Yan Poon

Andrey Pudeyev

Shmuel Levy

Timothy F Cox

Keith A Holt

Hossein Alavi

W Steven Conner

Sergey Alexanderovich Tiraspolsky

David Cheung

Tami Lee

Rohit U Nabar

A method of analyzing text is performed at an electronic system that includes one or more processors and memory storing instructions for execution by the one or more processors. The method includes extracting terms from a corpus of text and generating a plurality of rankings of the extracted terms. Each ranking of the plurality of rankings is based on a respective metric of a plurality of metrics. The method further includes defining a set of terms, which includes selecting a number of top-ranked terms from each ranking of the plurality of rankings. The set of terms may be provided for display and/or used as search terms to perform a search.

Document term extraction based on multiple metrics

Various embodiments are described for a trained data transmission for communication systems. A training phase may include a first wireless station exchanging medium reservation messages with a second wireless station to reserve a medium and to select a data transmission parameter. The data transmission parameter may include a modulation scheme and a forward error correction (FEC) coding rate. At least one of the medium reservation messages may include a duration field indicating a duration for which the medium is reserved. A first data phase may include sending data from the first wireless station to the second wireless station according to the selected data transmission parameter. A second data phase may then be performed without first repeating the training phase. The second data phase may include transmitting data from the first wireless station to a second wireless station according to the data transmission parameter.

Trained data transmission for communication systems

The present application discloses device and system embodiments that address mobile device integration considerations for various categories of UV sensors, including cameras, photodiodes, and chemical sensors. The UV sensors may use the functionalities of the existing in-built sensors in conventional mobile devices, and/or integrate additional components specific to UV sensing. By optimally positioning the sensors, UV sensing and other collateral functionalities (e.g., charging a photovoltaic cell integrated with the mobile device) can be realized in parallel.

Mobile device based ultra-violet (UV) radiation sensing

A communication station uses a plurality of antennas for transmission of orthogonal frequency division multiplexed (OFDM) symbols. The communication station includes an interleaver to interleave a block of encoded bits of an associated input bit stream for use in generating an output bit stream having a desired code rate. The communication station also includes circuitry to modulate the bits of the output bit stream to generate complex-valued modulation symbols, circuitry to map the modulation symbols for transmit diversity to layers for each of the antennas based on a number of antennas used and to further map the modulation symbols for each antenna onto resource elements, circuitry to cyclically shift the mapped modulation elements, circuitry to provide the cyclically-shifted modulation symbols for transmission by an associated one of the antennas, and circuitry to add a cyclic prefix to the modulation symbols prior to transmission.

Communication station and method for transmitting OFDM symbols with cyclic-delay diversity (CDD)

An apparatus and associated methods for performing space-frequency interleaving in a multicarrier wireless communication system is generally described.

Apparatus and associated methods to perform space-frequency interleaving in a multicarrier wireless communication channel

An orthogonal-frequency division multiplexed (OFDM) transmitter is configured to transmit a data unit in accordance with a multiple-input multiple-output (MIMO) technique over a wideband channel comprising a 20 MHz channel and another channel using a plurality of spatially diverse antennas. The transmitter is further configured to include in the data unit, a parameter indicating a modulation and coding scheme and a parameter indicating number of spatial streams. Each of the spatial streams is encoded and beamformed for receipt by one or more different receiving stations.

MIMO transmitter and method for transmitting OFDM symbols

A system, apparatus, method and article to manage diversity for a wireless multicarrier communication system are described. An apparatus may include a diversity agent to couple to a transmitter, the diversity agent to convert a determined number of input bits into symbols, interleave the symbols across multiple spatial streams, and map the symbols to tones for each spatial stream. Other embodiments are described and claimed.

Techniques to enhance diversity for a wireless system

Embodiments of methods and apparatus for providing an integrated multi-hop routing and cooperative diversity system are generally described herein. Other embodiments may be described and claimed.

Methods and apparatus for providing an integrated multi-hop routing and cooperative diversity system

Briefly, in accordance with one embodiment of the invention, a wireless communication system may adaptively switch between a multiple input, multiple output mode and a spatial division, multiple access mode based at least in part on channel conditions and traffic conditions.

Adaptive signaling in multiple antenna systems

Various embodiments are described for a trained data transmission for communication systems.

Methods, protocols and systems for communicating in a multi-hop wireless mesh network may include explicitly providing information relating to backhaul wireless link qualities in multi-hop wireless mesh network to next generation subscriber stations in a first mode. In a second mode, embodiments are configured to implicitly provide indicia of multi-hop wireless link qualities to legacy subscriber stations by adjusting a transmit power of frames sent to the legacy subscriber stations. Other embodiments and variations are described in the detailed description.

Architecture, protocols and frame formats for wireless multi-hop relay networks

In a wireless network, a base station is configured to transmit downlink reference signals to allow a mobile device to derive a MIMO channel estimate.

Base station and method for transmitting downlink reference signals for MIMO channel estimation

A MIMO transmitter and method for transmitting a group of sequential OFDM symbols on a downlink channel using a plurality of antennas is disclosed herein. Groups of OFDM subcarriers are individually modulated in accordance with spatial-frequency subcarrier modulation assignments to generate groups of symbol-modulated subcarriers, corresponding symbol-modulated subcarriers are combined for transmission on each of a plurality of spatial channels, and beamforming is performed on the combined symbol-modulated subcarriers for transmission over the spatial channels. The channel comprises a plurality of the groups of the OFDM subcarriers and the OFDM subcarriers within each group of subcarriers and within each group of sequential OFDM symbols have the same spatial-frequency subcarrier modulation assignments. The spatial-frequency subcarrier modulation assignments for each group are determined based on feedback by a receiver, which is determined from spatial channel characteristics of the spatial channels.

MIMO transmitter for transmitting a group of sequential OFDM symbols using a plurality of antennas

An apparatus and associated methods to improve diversity gain while preserving channel throughput in a multicarrier communication channel are generally presented.

Growing community of inventors

San Jose, CA, United States of America

Sumeet Sandhu