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公开(公告)号：US20240422670A1
公开(公告)日：2024-12-19
申请号：US18815991
申请日：2024-08-27
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.
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公开(公告)号：US20230292263A1
公开(公告)日：2023-09-14
申请号：US18319069
申请日：2023-05-17
Applicant: Texas Instruments Incorporated
Inventor： Timothy M. Schmidl , Anuj Batra , Srinath Hosur
CPC classification number: H04W56/001 , H04L27/2613 , H04L27/2634 , H04W4/80 , H04L27/26132
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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公开(公告)号：US10944503B2
公开(公告)日：2021-03-09
申请号：US14930230
申请日：2015-11-02
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.
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公开(公告)号：US10116407B2
公开(公告)日：2018-10-30
申请号：US15690427
申请日：2017-08-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Tarkesh Pande , Anuj Batra , Il Han Kim
Abstract: An orthogonal frequency division multiplexing (OFDM) receiver includes detection logic, offset generation logic, tone erasure logic, and correction generation logic. The detection logic is configured to detect a signal containing a block of samples that includes a narrowband interferer from a communication channel. The offset generation logic is configured to align a frequency of the narrowband interferer to a center of a subcarrier frequency of the communication channel to produce an offset signal thereby introducing inter-carrier interference (ICI). The tone erasure logic is configured to remove the subcarrier frequency from the offset signal to produce an interferer erased offset signal. The correction generation logic is configured to remove the ICI to produce an interferer erased signal.
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公开(公告)号：US10103840B2
公开(公告)日：2018-10-16
申请号：US14952406
申请日：2015-11-25
Applicant: Texas Instruments Incorporated
Inventor： Yumin Zhang , Wenxun Qiu , Timothy Mark Schmidl , Anuj Batra
Abstract: A networking device includes a packet header protect generator, a transmitter, a receiver, a decoder and router. The transmitter transmits a data packet to the receiver. The data packet includes a data packet header. The packet header protection generator is arranged to toggle selected bits of a protected portion of the data packet header and generate a data integrity signature. The receiver receives the data packet and generates a received data integrity signature. The decoder computes a locally computed data integrity signature in response to the protected portion of the received data packet header. The locally computed data integrity signature is compared with the received data integrity signature. The router selects a portion of a routing path in response to whether a data packet forwarding destination includes a decoder arranged to compute a locally computed data integrity signature.
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Patent Agency Ranking
公开(公告)号：US20180176052A1
公开(公告)日：2018-06-21
申请号：US15899310
申请日：2018-02-19
Applicant: Texas Instruments Incorporated
Inventor： Timothy Mark Schmidl , Srinath Hosur , Anuj Batra
CPC classification number: H04L27/0012 , H04L27/2613
Abstract: A method of communicating in a wireless network including a plurality of nodes having communications devices including a first node, wherein at least one node utilizes a first physical layer (PHY) modulation, and at least one other node utilizes a second PHY modulation different from the first PHY modulation. The first node receives a PHY frame transmitted by one of the plurality of nodes, and identifies a PHY modulation type selected from the first PHY modulation and the second PHY modulation used in the PHY frame or to be used in a subsequently to be received PHY frame or frame portion. The first node decodes the PHY frame or the subsequently to be received PHY frame or frame portion using the PHY modulation type identified in the identifying step.
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公开(公告)号：US09584172B2
公开(公告)日：2017-02-28
申请号：US14821264
申请日：2015-08-07
Applicant: Texas Instruments Incorporated
Inventor： Wenxun Qiu , Timothy Mark Schmidl , Minghua Fu , Anuj Batra
CPC classification number: H04B1/123 , H03G3/3078 , H03G3/3089 , H03M3/042 , H04B7/0811 , H04B17/20 , H04L27/14
Abstract: A wireless network receiver includes a detection module that uses preamble data in a data frame for signal processing functions and the detection module is configured to adjust the number of preamble data bits that are used based on the power of a received signal.
Abstract translation: 无线网络接收机包括检测模块，该检测模块使用用于信号处理功能的数据帧中的前导码数据，并且检测模块被配置为基于接收信号的功率来调整所使用的前导码数据位的数量。
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公开(公告)号：US20160165436A1
公开(公告)日：2016-06-09
申请号：US15042634
申请日：2016-02-12
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Timothy M. Schmidl , Anuj Batra
IPC: H04W12/02
CPC classification number: H04W12/02 , H04L25/03866 , H04L27/2601
Abstract: An integrated circuit includes logic configured to generate scrambling sequences, each based on a different scrambling seed, for a smart-utility-network data packet communication. A Hamming distance between any two scrambling sequences is half the length of a PSDU of the data packet or greater.
Abstract translation: 集成电路包括被配置为产生扰频序列的逻辑，每个加扰序列基于不同的加扰种子，用于智能公用事业网络数据分组通信。 任何两个加扰序列之间的汉明距离是数据分组的PSDU的长度的一半或更大。
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公开(公告)号：US20160013812A1
公开(公告)日：2016-01-14
申请号：US14552710
申请日：2014-11-25
Applicant: Texas Instruments Incorporated
Inventor： Samantha Rose Summerson , Anuj Batra , June Chul Roh
CPC classification number: H03M13/235 , H03M13/23 , H03M13/2707 , H03M13/373 , H03M13/41
Abstract: A network coding method includes receiving a plurality of input packets each having a packet length. Encoding the plurality of input packets by applying a convolutional code across symbols in corresponding positions of the plurality of input packets obtaining a number of encoded packets. The number of encoded packets obtained being more than the number of input packets.
Abstract translation: 网络编码方法包括接收多个具有分组长度的输入分组。 通过在多个输入分组的相应位置的符号上应用卷积码来获得多个编码分组来对多个输入分组进行编码。 获得的编码数据包数量大于输入数据包的数量。
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30.发明申请公开(公告)号：US20150341084A1
公开(公告)日：2015-11-26
申请号：US14816671
申请日：2015-08-03
Applicant: Texas instruments incorporated
Inventor： Il Han Kim , Tarkesh Pande , Anuj Batra
IPC: H04B3/54
CPC classification number: H04B3/542 , H04B2203/5433 , H04B2203/5466
Abstract: Embodiments include methods of powerline communications using a preamble with band extension is provided. A method may include receiving a packet data unit PDU. Bit-level repetition is applied to at least a portion of the PDU to create a repeated portion. Interleaving is performed per a subchannel. Pilot tones are inserted in the interleaved portion. Each each data tone is modulated with respect to a nearest one of the inserted pilot tones. The PDU is transmitted over a power line
Abstract translation: 实施例包括使用带扩展的前置码的电力线通信的方法。 一种方法可以包括接收分组数据单元PDU。 位层重复被应用于PDU的至少一部分以产生重复的部分。 每个子信道执行交织。 引导音被插入交错部分。 每个数据音调相对于插入的导频音中最接近的一个进行调制。 PDU通过电力线传输
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