公开(公告)号：US20230011884A1

公开(公告)日：2023-01-12

申请号：US17929481

申请日：2022-09-02

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： June Chul Roh ,  Pierre Bertrand ,  Srinath Hosur ,  Vijay Pothukuchi ,  Mohamed Farouk Mansour

IPC: H04W72/04 ,  H03M13/29 ,  H04L1/00 ,  H03M13/15 ,  H03M13/00 ,  H04L1/18

Abstract: 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.

公开(公告)号：US20220378313A1

公开(公告)日：2022-12-01

申请号：US17883028

申请日：2022-08-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Dan Wang ,  June Chul Roh ,  Adeel Ahmad

IPC: A61B5/0507 ,  A61B5/00 ,  G01S7/41 ,  G01S7/35 ,  G01S13/89

Abstract: A mm-wave system includes transmission of a millimeter wave (mm-wave) signal by a plurality of transmitters to multiple objects, and receiving of return—mm-wave signals from the multiple objects by a plurality of receivers. A processor is configured to perform an algorithm to derive complex-valued samples and angle measurements from each receiver to identify one object from another object. The processor further extracts signal waveforms that correspond to each object and process the extracted signal waveforms to estimate breathing rate and heart rate of the identified object.

公开(公告)号：US11412937B2

公开(公告)日：2022-08-16

申请号：US15717756

申请日：2017-09-27

Applicant: Texas Instruments Incorporated

Inventor： Adeel Ahmad ,  Dan Wang ,  June Chul Roh

IPC: A61B5/00 ,  A61B5/0205 ,  A61B5/08 ,  A61B5/024 ,  A61B5/0507

Abstract: A mm-wave system includes transmission of a millimeter wave (mm-wave) signal by a plurality of transmitters to multiple objects, and receiving of return-mm-wave signals from the multiple objects by a plurality of receivers. A processor is configured to perform an algorithm to derive complex-valued samples and angle measurements from each receiver to identify one object from another object. The processor further extracts signal waveforms that correspond to each object and process the extracted signal waveforms to estimate breathing rate and heart rate of the identified object.

公开(公告)号：US10652867B2

公开(公告)日：2020-05-12

申请号：US16156153

申请日：2018-10-10

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： June Chul Roh ,  Pierre Bertrand ,  Srinath Hosur ,  Vijay Pothukuchi ,  Mohamed Farouk Mansour

IPC: H03M13/00 ,  H04W72/04 ,  H03M13/29 ,  H04L1/00 ,  H03M13/15 ,  H04L1/18 ,  H04H20/38

Abstract: 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.

公开(公告)号：US10230493B2

公开(公告)日：2019-03-12

申请号：US15462719

申请日：2017-03-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： June Chul Roh ,  Pierre Bertrand

IPC: H04L1/00 ,  H03M13/09 ,  H03M13/15 ,  H03M13/27 ,  H03M13/29 ,  H03M13/00 ,  H04L1/18 ,  H04L27/26 ,  H04W84/04

Abstract: A method for performing code block segmentation for wireless transmission using concatenated forward error correction encoding includes receiving a transport block of data for transmission having a transport block size, along with one or more parameters that define a target code rate. A number N of inner code blocks needed to transmit the transport block is determined. A number M—outer code blocks may be calculated based on the number of inner code blocks and on encoding parameters for the outer code blocks. The transport block may then be segmented and encoded according to the calculated encoding parameters.

公开(公告)号：US20190044530A1

公开(公告)日：2019-02-07

申请号：US16152754

申请日：2018-10-05

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Corina Ioana Ionita ,  June Chul Roh ,  Mohamed F. Mansour ,  Srinath Hosur

IPC: H03M5/18 ,  H04L27/36 ,  H04L1/00 ,  H03M13/25 ,  H04L25/49 ,  H03M13/13 ,  H03M13/15

CPC classification number: H03M5/18 ,  H03M13/13 ,  H03M13/152 ,  H03M13/251 ,  H03M13/255 ,  H04L1/0041 ,  H04L1/0058 ,  H04L25/4917 ,  H04L27/36 ,  H04L27/364

Abstract: 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.

公开(公告)号：US20190037379A1

公开(公告)日：2019-01-31

申请号：US16039412

申请日：2018-07-19

Applicant: Texas Instruments Incorporated

Inventor： Anuj Batra ,  Timothy M. Schmidl ,  Srinath Hosur ,  June Chul Roh

IPC: H04W4/80 ,  H04W52/36 ,  H04L29/06 ,  H04L27/26 ,  H04L27/18 ,  H04W74/08 ,  H04W72/04 ,  H04L27/20

Abstract: In at least some embodiments, a communication device includes a transceiver with a physical (PHY) layer. The PHY layer is configured for body area network (BAN) operations in a limited multipath environment based on a constant symbol rate for BAN packet transmissions and based on M-ary PSK, differential M-ary PSK or rotated differential M-ary PSK modulation. The PHY layer is configured to transmit and receive data in a frequency band selected from the group consisting of: 402-405 MHz, 420-450 MHz, 863-870 MHz, 902-928 MHz, 950-956 MHz, 2360-2400 MHz, and 2400-2483.5 MHz.

公开(公告)号：US09872130B2

公开(公告)日：2018-01-16

申请号：US15298829

申请日：2016-10-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Anuj Batra ,  Timothy M. Schmidl ,  Srinath Hosur ,  June Chul Roh

IPC: H04J1/00 ,  H04W4/00 ,  H04L27/18 ,  H04L27/20 ,  H04L29/06 ,  H04L27/26 ,  H04W52/36

CPC classification number: H04W4/80 ,  H04L27/18 ,  H04L27/20 ,  H04L27/2675 ,  H04L69/22 ,  H04W52/36 ,  H04W52/367 ,  H04W72/0453 ,  H04W74/0816

Abstract: In at least some embodiments, a communication device includes a transceiver with a physical (PHY) layer. The PHY layer is configured for body area network (BAN) operations in a limited multipath environment using M-ary PSK, differential M-ary PSK or rotated differential M-ary PSK. Also, the PHY layer uses a constant symbol rate for BAN packet transmissions.

公开(公告)号：US09510138B2

公开(公告)日：2016-11-29

申请号：US14709549

申请日：2015-05-12

Applicant: Texas Instruments Incorporated

Inventor： Anuj Batra ,  Timothy M. Schmidl ,  Srinath Hosur ,  June Chul Roh

IPC: H04W4/00 ,  H04L27/18 ,  H04L27/20 ,  H04L29/06 ,  H04L27/26

CPC classification number: H04W4/80 ,  H04L27/18 ,  H04L27/20 ,  H04L27/2675 ,  H04L69/22 ,  H04W52/36 ,  H04W52/367 ,  H04W72/0453 ,  H04W74/0816

Abstract: In at least some embodiments, a communication device includes a transceiver with a physical (PHY) layer. The PHY layer is configured for body area network (BAN) operations in a limited multipath environment based on a constant symbol rate for BAN packet transmissions and based on M-ary PSK, differential M-ary PSK or rotated differential M-ary PSK modulation. The PHY layer is configured to transmit and receive data in a frequency band selected from the group consisting of: 402-405 MHz, 420-450 MHz, 863-870 MHz, 902-928 MHz, 950-956 MHz, 2360-2400 MHz, and 2400-2483.5 MHz.

Abstract translation: 在至少一些实施例中，通信设备包括具有物理（PHY）层的收发器。 基于用于BAN分组传输的恒定符号速率并且基于M-ary PSK，差分M-ary PSK或旋转差分M-ary PSK调制，PHY层被配置用于在有限多径环境中的体区域网络（BAN）操作。 PHY层被配置为从选自以下的频带发送和接收数据：402-405MHz，420-450MHz，863-870MHz，902-928MHz，950-956MHz，2360-2400MHz ，和2400-2483.5MHz。

公开(公告)号：US09438304B2

公开(公告)日：2016-09-06

申请号：US14825714

申请日：2015-08-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： June Chul Roh ,  Anuj Batra ,  Sudipto Chakraborty ,  Srinath Hosur

IPC: H04B1/00 ,  H04B1/69 ,  H04B1/7176

CPC classification number: H04B1/69 ,  H04B1/7176 ,  H04B2001/6908

Abstract: A symbol modulation system applicable to a body area network is disclosed herein. The symbol modulation system includes a symbol mapper. The symbol mapper is configured to determine a time within a predetermined symbol transmission interval at which a transmission representative of the symbol will occur. The time is determined based on a value of a symbol and a value of a time-hopping sequence. The time is selected from a plurality of symbol value based time slots, and a plurality of time-hopping sequence sub-time-slots within each symbol value based time slot. The symbol mapper is configured to generate a single guard interval within the symbol transmission interval. The single guard interval is positioned to terminate the symbol transmission interval.