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公开(公告)号：US12096357B2
公开(公告)日：2024-09-17
申请号：US18322705
申请日：2023-05-24
Applicant: Texas Instruments Incorporated
Inventor： Ariton E. Xhafa , Bradford James Campbell , Anuj Batra , Srinath Hosur
IPC: H04W52/02
CPC classification number: H04W52/0216 , Y02D30/70
Abstract: 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.
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公开(公告)号：US12004164B2
公开(公告)日：2024-06-04
申请号：US18118019
申请日：2023-03-06
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： June Chul Roh , Pierre Bertrand , Srinath Hosur , Vijay Pothukuchi , Mohamed Farouk Mansour
IPC: H04W72/21 , H03M13/00 , H03M13/15 , H03M13/29 , H04L1/00 , H04L1/1812 , H04H20/38 , H04W72/0446
CPC classification number: H04W72/21 , H03M13/1515 , H03M13/2966 , H03M13/611 , H04L1/0041 , H04L1/0057 , H04L1/0061 , H04L1/0064 , H04L1/0071 , H04L1/0076 , H04L1/1812 , H03M13/618 , H03M13/635 , H04H20/38 , H04W72/0446
Abstract: 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.
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公开(公告)号：US11700577B2
公开(公告)日：2023-07-11
申请号：US17242872
申请日：2021-04-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ariton E. Xhafa , Bradford James Campbell , Anuj Batra , Srinath Hosur
IPC: H04W52/02
CPC classification number: H04W52/0216 , Y02D30/70
Abstract: 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.
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公开(公告)号：US11438882B2
公开(公告)日：2022-09-06
申请号：US16872135
申请日：2020-05-11
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： June Chul Roh , Pierre Bertrand , Srinath Hosur , Vijay Pothukuchi , Mohamed Farouk Mansour
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.
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公开(公告)号：US20210037491A1
公开(公告)日：2021-02-04
申请号：US17072232
申请日：2020-10-16
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Timothy M. Schmidl , Anuj Batra , Srinath Hosur
Abstract: 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.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10770971B2
公开(公告)日：2020-09-08
申请号：US16428525
申请日：2019-05-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Gary Franklin Chard , Ariel Dario Moctezuma , Hasibur Rahman , Alex Kwasi Nyavor Titriku , Srinath Hosur
Abstract: A system includes an inductor and a first switch coupled between a first end of the inductor and a voltage supply node. The system also includes a second switch coupled between the first end of the inductor and a negative output supply node. The system also includes a third switch coupled between a second end of the inductor and a positive output supply node. The system also includes a fourth switch coupled between the second end of the inductor and a ground node. The system also includes a controller 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 involving the first switch, and a second rest state involving the fourth switch.
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公开(公告)号：US20200077418A1
公开(公告)日：2020-03-05
申请号：US16679929
申请日：2019-11-11
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ariton E. Xhafa , Soon-Hyeok Choi , Srinath Hosur , Yanjun Sun
Abstract: 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).
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公开(公告)号：US10292030B2
公开(公告)日：2019-05-14
申请号：US15786823
申请日：2017-10-18
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Anuj Batra , Timothy M. Schmidl , Srinath Hosur , June Chul Roh
IPC: H04W4/00 , H04W4/80 , H04L27/18 , H04L27/20 , H04L29/06 , H04L27/26 , H04W52/36 , H04W72/04 , H04W74/08
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.
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公开(公告)号：US20190053224A1
公开(公告)日：2019-02-14
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
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.
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公开(公告)号：US10015810B2
公开(公告)日：2018-07-03
申请号：US14920625
申请日：2015-10-22
Applicant: Texas Instruments Incorporated
Inventor： Ariton E. Xhafa , Soon-Hyeok Choi , Srinath Hosur , Yanjun Sun
CPC classification number: H04W72/1215 , H04W4/80 , H04W84/12 , H04W84/18 , H04W88/06
Abstract: 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).
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