Texas Instruments Corporation

Other

University of Minnesota

Srinath Hosur

Anuj Batra

Anand Ganesh Dabak

Timothy M Schmidl

June Chul Roh

Deric Wayne Waters

Mohamed Farouk Mansour

Sundararajan Sriram

David Patrick Magee

Pierre Bertrand

Manish Goel

Michael Oliver Polley

Alan Gatherer

Ariton E Xhafa

Nirmal Chindhu Warke

Srikanth Gummadi

Eko Nugroho Onggosanusi

Baher S Haroun

Yanjun Sun

Sudipto Chakraborty

Jaiganesh Balakrishnan

Xiaolin Lu

Marco Corsi

Tarik Muharemovic

Siraj Akhtar

Muhammad Zubair Ikram

Naftali Sommer

Badri N Varadarajan

Gary Franklin Chard

Aris Papasakellariou

Tarkesh Pande

Swaminathan Sankaran

William Robert Krenik

Shivaling S Mahant-Shetti

Venugopal Gopinathan

Hassan Omar Ali

Daniel Wajcer

Ahmed H Tewfik

Hirohisa Yamaguchi

Vijay Pothukuchi

Henry Stephen Eilts

David James Love

Soon-Hyeok Choi

Martin J Izzard

Ariel Dario Moctezuma

Corina Ioana Ionita

David L Milliner

Bradford James Campbell

Goutam Dutta

Hasibur Rahman

Dennis Rauschmayer

Everest Huang

Samantha Rose Summerson

Doron Burshtein

Oren Peles

Georgios Angelopoulos

June Chui Roh

Alex Kwasi Nyavor Titriku

Charles M Branch

Donald Phillip Shaver

Zigang Yang

Susan Yim

Ashish Khandelwal

Lars Jorgensen

Mitchell D Swanson

Charles Sestok

Taejoon Kim

Hassan Pooya Forghani-Zadeh

Eric Baissus

Brad Kramer

Rafi Dalla Torre

Peter Murphy

Shigenori Kinjo

Nathan R Belk

Timothy M Schmidt

JuneChul Roh

Jun Chul Roh

Matthew R Webb

Rao P Venkatasadasiva

Jin Meng Ho

Micahel T Direnzo

Lars Morten Jorgensen

A method includes receiving a first plurality of symbols comprising complex portions. The method further includes applying conjugate symmetry to the first plurality of symbols, producing a second plurality of symbols comprising no complex portions. The method further includes transforming the second plurality of symbols using an inverse fast Fourier transform, producing a third plurality of symbols. The method further includes interpolating the third plurality of symbols, generating a short training field comprising at least one real portion of the third plurality of symbols, generating a long training field comprising at least one real portion of the third plurality of symbols, and transmitting the short training field and long training field in a WPAN.

Short and long training fields

A system and method for reducing energy consumption in a wireless network. In one embodiment, a system includes a network coordinator configured to manage access to a wireless network. The network coordinator includes a controller. The controller is configured to define a channel hopping list that specifies on which channel a beacon signal is transmitted in each slot frame of the wireless network. The controller is also configured to set a number of time slots in each slot frame based on a length of the channel hopping list. The controller is further configured to transmit a first beacon signal in each slot frame on a channel specified by the channel hopping list. The number of slots in each slot frame causes the first beacon signal to be transmitted on a same channel in each slot frame.

Beacon scheduling for wireless networks

A method for communicating over a wireless backhaul channel comprising generating a radio frame comprising a plurality of time slots, wherein each time slot comprises a plurality of symbols in time and a plurality of sub-carriers in a system bandwidth, broadcasting a broadcast channel signal comprising a transmission schedule to a plurality of remote units in a number of consecutive sub-carriers centered about a direct current (DC) sub-carrier in at least one of the time slots in the radio frame regardless of the system bandwidth, and transmitting a downlink (DL) control channel signal and a DL data channel signal to a first of the remote units, wherein the DL data channel signal is transmitted by employing a single carrier block transmission scheme comprising a Discrete Fourier Transform (DFT) spreading for frequency diversity.

NLOS wireless backhaul downlink communication

A method for uplink (UL) wireless backhaul communication at a wireless backhaul remote unit in a radio access network comprising receiving a configuration for radio frames and a transmission schedule through a downlink (DL) physical layer broadcast channel, wherein the transmission schedule comprises a transmission allocation for the remote unit, generating a UL data frame, wherein generating the UL data frame comprises performing forward error correction (FEC) encoding on a data bit stream to generate a plurality of FEC codewords, wherein performing the FEC encoding comprises performing Reed Solomon (RS) encoding on the data bit stream to generate a plurality of RS codewords, performing byte interleaving on the RS codewords, and performing Turbo encoding on the byte interleaved RS codewords to generate one or more Turbo codewords, wherein each Turbo codeword is encoded from more than one RS codeword, and transmitting the UL data frame according to the transmission allocation.

NLOS wireless backhaul uplink communication

A method for communicating in a wireless sensor network (WSN) is described. Using control logic, a first wireless transceiver is caused to transmit a wireless packet to a node in a wireless sensor network. The control logic bases its causing on a transmission coinciding with a break in transmission for a second wireless network, such that the transmission from the first wireless transceiver does not coincide with transmissions made on the second wireless network. Time synchronized channel hopping (TSCH) slot frames for wireless packet transmission in the wireless sensor network are caused to be time offset if the first wireless transceiver is utilizing TSCH. Wake up sequence transmissions for the wireless sensor network are caused to be time offset if the first wireless transceiver is utilizing coordinated sampled listening (CSL).

Coexistence of wireless sensor networks with other wireless networks

A system and method for providing error control coding for backhaul applications are disclosed. Data is first encoded using Reed-Solomon (RS) coding. The output RS blocks are then turbo coded. The size of the output RS blocks is selected to match the input of the turbo encoder. The bits from the RS blocks may be interleaved to create the input turbo blocks. Cyclic Redundancy Check (CRC) parity bits may be added to the data prior to RS coding.

Forward error control coding

An inductor has first and second terminals. A first switch is coupled between the first terminal and a voltage supply terminal. A second switch is coupled between the first terminal and a negative output supply terminal. A third switch is coupled between the second terminal and a positive output supply terminal. A fourth switch is coupled between the second terminal and a ground terminal. A controller is coupled to the first, second, third and fourth switches. The controller is configured to provide: an inductor charge mode; a positive boost mode; a negative boost mode; a first rest state in which the controller closes the first switch and opens the second, third and fourth switches; and a second rest state in which the controller closes the fourth switch and opens the first, second and third switches.

Single-input multiple-output (SIMO) converter having a controller with switchable rest states

Embodiments of the invention provide a system and method for chip to chip communications in electronic circuits. In one embodiment, a networking device includes an input port circuit having a transmitter circuit coupled one or more transmitter antennas, wherein the input port circuit transmits a data packet to a first output port circuit using millimeter wave signals. The networking device includes output port circuits including at least the first output port circuit, each of the output port circuits having a receiver circuit coupled to one or more receiver antennas. The networking device includes a beamforming circuit coupled to the one or more transmitter antennas of the input port circuit, wherein the beamforming circuit causes the one or more transmitter antennas to transmit an antenna beam directed at the one or more receiver antennas of the first output port circuit.

Wireless chip-to-chip switching

A network coding system. A packet decoding engine receives a number of received packets. A packet repository is coupled to the decoding engine to temporarily store the received packets. The packet decoding engine is configured to generate a decoding matrix by forming a sub-matrix by selecting columns of a network code matrix that have indices that are the same as the indices of the encoded packets that correspond to the selected received packets. The packet decoding engine is also configured to invert the sub-matrix to form the decoding matrix and multiply the received packet matrix by the decoding matrix to generate a recovered matrix where each column corresponds to a decoded packet.

Networking coding system in a network layer

A method includes receiving multiple bits to be transmitted. The method also includes applying a first binary alphabet polar code to a first subset of the multiple bits to generate first encoded bits. The first encoded bits are associated with a first bit level of a multilevel coding scheme. The method further includes generating one or more symbols using the first encoded bits and bits associated with a second bit level of the multilevel coding scheme. The first binary alphabet polar code is associated with a first coding rate. In addition, the method could include applying a second binary alphabet polar code to a second subset of the multiple bits to generate second encoded bits. The second encoded bits are associated with the second bit level. The second binary alphabet polar code is associated with a second coding rate such that the bit levels have substantially equal error rates.

Apparatus and method for multilevel coding (MLC) with binary alphabet polar codes

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Plano, TX, United States of America

Srinath Hosur