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公开(公告)号：US20150043596A1
公开(公告)日：2015-02-12
申请号：US14449981
申请日：2014-08-01
Applicant: Texas Instruments Incorporated
Inventor： Jing Lin , Tarkesh Pande , Il Han Kim , Anuj Batra
CPC classification number: H04L5/0048 , H04B3/54 , H04B2203/5408 , H04L27/20 , H04L27/36 , H04W28/04 , H04W72/1263
Abstract: A method of encoding a first bit and a second bit for transmission on a transmission band is provided. The method includes: mapping, via a mapping component, the first bit and the second bit into a first symbol; mapping, via the mapping component, the first bit and the second bit into a second symbol; dividing, via a dividing component, the transmission band into subcarriers; allocating, via an allocating component, the first symbol to a first subcarrier of the subcarriers, allocating, via the allocating component, the second symbol to a second subcarrier of the subcarriers; and differentially encoding, via a differential encoder, the first symbol and the second symbol.
Abstract translation: 提供了一种在传输频带上对第一位和第二位进行编码以进行传输的方法。 该方法包括：经由映射组件将第一位和第二位映射成第一符号; 经由所述映射组件将所述第一位和所述第二位映射到第二符号中; 通过划分成分将传输频带划分成子载波; 经由分配组件将所述第一符号分配给所述子载波的第一子载波，经由所述分配组件将所述第二符号分配给所述子载波的第二子载波; 以及经由差分编码器对第一符号和第二符号进行差分编码。
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公开(公告)号：US20140112397A1
公开(公告)日：2014-04-24
申请号：US14056755
申请日：2013-10-17
Applicant: Texas Instruments Incorporated
Inventor： Anuj Batra , Tarkesh Pande , Il Han Kim
IPC: H04B3/54
CPC classification number: H04B3/542 , H04L27/2331 , H04L27/2613
Abstract: Embodiments of the invention provide a method for discriminating between two types of encoding schemes for the frame control header (FCH) used in G3-type narrow band OFDM communications. The two modes for encoding are Differential with respect to the previous Symbol (DS) and Differential with respect to the Preamble (DP). This mode is sometimes referred to as “coherent” mode
Abstract translation: 本发明的实施例提供了一种用于鉴别在G3型窄带OFDM通信中使用的帧控制报头（FCH）的两种类型的编码方案的方法。 编码的两种模式相对于先前的符号（DS）和差分相对于前导码（DP）是差分的。 这种模式有时被称为“相干”模式
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公开(公告)号：US12009961B2
公开(公告)日：2024-06-11
申请号：US17142607
申请日：2021-01-06
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Mostafa Sayed Ibrahim , Il Han Kim , Tarkesh Pande , Anuj Batra
IPC: H04L27/26 , H04B3/54 , H04B7/0413 , H04L5/00 , H04L7/04 , H04W74/0816 , H04L1/1867
CPC classification number: H04L27/2656 , H04B3/54 , H04B3/542 , H04B3/546 , H04B7/0413 , H04L5/0023 , H04L7/042 , H04L27/26 , H04L27/2602 , H04L27/2603 , H04L27/2613 , H04L27/2655 , H04L27/2663 , H04W74/0816 , H04L1/188
Abstract: A PLC network system and method operative with OFDM for generating MIMO frames with suitable preamble portions configured to provide backward compatibility with legacy PLC devices and facilitate different receiver tasks such as frame detection and symbol timing, channel estimation and automatic gain control (AGC), including robust preamble detection in the presence of impulsive noise and frequency-selective channels of the PLC network. A PLC device may include a delayed correlation detector and a cross-correlation detector operating in concert to facilitate preamble detection in one implementation.
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公开(公告)号：US20210160119A1
公开(公告)日：2021-05-27
申请号：US17142607
申请日：2021-01-06
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Mostafa Sayed Ibrahim , Il Han Kim , Tarkesh Pande , Anuj Batra
Abstract: A PLC network system and method operative with OFDM for generating MIMO frames with suitable preamble portions configured to provide backward compatibility with legacy PLC devices and facilitate different receiver tasks such as frame detection and symbol timing, channel estimation and automatic gain control (AGC), including robust preamble detection in the presence of impulsive noise and frequency-selective channels of the PLC network. A PLC device may include a delayed correlation detector and a cross-correlation detector operating in concert to facilitate preamble detection in one implementation.
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公开(公告)号：US10856124B2
公开(公告)日：2020-12-01
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
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.
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Patent Agency Ranking
公开(公告)号：US10686914B2
公开(公告)日：2020-06-16
申请号：US14836443
申请日：2015-08-26
Applicant: Texas Instruments Incorporated
Inventor： Wonsoo Kim , Mehul Soman , Anuj Batra
Abstract: A communication device in a network may receive a stream of frames from the network, in which each frame includes one or more beacon packets. A communication protocol being used by the network may be identified by tracking a preselected field within a sequence of beacon packets, in which the preselected field varies in a first known manner for a first protocol and in a second known manner for a second protocol. The communication device may then join to the network using the identified communication protocol to transmit and receive data.
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公开(公告)号：US10680861B2
公开(公告)日：2020-06-09
申请号：US15899310
申请日：2018-02-19
Applicant: Texas Instruments Incorporated
Inventor： Timothy Mark Schmidl , Srinath Hosur , Anuj Batra
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：US20190387531A1
公开(公告)日：2019-12-19
申请号：US16557002
申请日：2019-08-30
Applicant: Texas Instruments Incorporated
Inventor： Bradford James Campbell , Ariton E. Xhafa , Anuj Batra
IPC: H04W72/10
Abstract: A system and method for optimizing power consumption of energy harvesting nodes in a wireless sensor network. In one embodiment, a system includes a network coordinator. The network coordinator includes a wireless transceiver and a controller. The wireless transceiver is configured to provide access to the wireless sensor network. The controller is configured to determine whether a wireless device that is wirelessly communicating with the network coordinator is powered via energy harvesting. The controller is also configured to schedule, based on a determination that the wireless device is powered via energy harvesting, the wireless device to communicate via the wireless sensor network using a priority timeslot of a superframe of the wireless sensor network. The priority timeslot is a timeslot occurring in an initial portion of the superframe.
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公开(公告)号：US10405326B2
公开(公告)日：2019-09-03
申请号：US13951839
申请日：2013-07-26
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Bradford James Campbell , Ariton E. Xhafa , Anuj Batra
IPC: H04W72/10
Abstract: A system and method for optimizing power consumption of energy harvesting nodes in a wireless sensor network. In one embodiment, a system includes a network coordinator. The network coordinator includes a wireless transceiver and a controller. The wireless transceiver is configured to provide access to the wireless sensor network. The controller is configured to determine whether a wireless device that is wirelessly communicating with the network coordinator is powered via energy harvesting. The controller is also configured to schedule, based on a determination that the wireless device is powered via energy harvesting, the wireless device to communicate via the wireless sensor network using a priority timeslot of a superframe of the wireless sensor network. The priority timeslot is a timeslot occurring in an initial portion of the superframe.
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公开(公告)号：US10057745B2
公开(公告)日：2018-08-21
申请号：US15332138
申请日：2016-10-24
Applicant: Texas Instruments Incorporated
Inventor： Anuj Batra , Timothy M. Schmidl , Srinath Hosur , June Chul Roh
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.
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