-
公开(公告)号：US20210250859A1
公开(公告)日：2021-08-12
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
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.
-
公开(公告)号：US11026170B2
公开(公告)日：2021-06-01
申请号：US13951798
申请日：2013-07-26
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ariton E. Xhafa , Bradford James Campbell , Anuj Batra , Srinath Hosur
IPC: H04W52/02
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.
-
公开(公告)号：US20210160003A1
公开(公告)日：2021-05-27
申请号：US17165520
申请日：2021-02-02
Applicant: Texas Instruments Incorporated
Inventor： Samantha Rose Summerson , Anuj Batra , Srinath Hosur , Georgios Angelopoulos
Abstract: 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.
-
公开(公告)号：US10813064B2
公开(公告)日：2020-10-20
申请号：US16044074
申请日：2018-07-24
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.
-
公开(公告)号：US10512097B2
公开(公告)日：2019-12-17
申请号：US16024039
申请日：2018-06-29
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).
-
Patent Agency Ranking
公开(公告)号：US10469099B2
公开(公告)日：2019-11-05
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
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：US10334569B2
公开(公告)日：2019-06-25
申请号：US14297145
申请日：2014-06-05
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： June Chul Roh , Pierre Bertrand , Srinath Hosur , Vijay Pothukuchi , Mohamed Farouk Mansour
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.
-
公开(公告)号：US10136418B2
公开(公告)日：2018-11-20
申请号：US15236276
申请日：2016-08-12
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.
-
公开(公告)号：US10135460B2
公开(公告)日：2018-11-20
申请号：US14503547
申请日：2014-10-01
Applicant: Texas Instruments Incorporated
Inventor： Corina Ioana Ionita , June Chul Roh , Mohamed F. Mansour , Srinath Hosur
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：US20180332550A1
公开(公告)日：2018-11-15
申请号：US16044074
申请日：2018-07-24
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Timothy M. Schmidl , Anuj Batra , Srinath Hosur
CPC classification number: H04W56/001 , H04L27/2613 , H04L27/2634 , H04W4/80
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.
-
-
-
-
-
-
-
-
-
Search Results
103
records
(took 0.024 seconds)
