公开(公告)号：US20140105313A1

公开(公告)日：2014-04-17

申请号：US14052913

申请日：2013-10-14

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 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

公开(公告)号：US20130266081A1

公开(公告)日：2013-10-10

申请号：US13859705

申请日：2013-04-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Tarkesh Pande ,  Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Il Han Kim

IPC: H04B3/54

CPC classification number: H04B3/54 ,  H04B2203/5408 ,  H04B2203/5416

Abstract: Embodiments of methods and systems for using both new and older modulation schemes in PLC networks—thereby supporting legacy systems—are disclosed. In one embodiment, common frames that need to be understood by all nodes to support the network will be sent two or more times using different modulation techniques. For example, all broadcast frames, such as beacon requests, beacons, and route requests may be transmitted once with differential modulation and once with coherent modulation. In one configuration, the beacons with differential modulation may be transmitted in one beacon period, and the beacons with coherent modulation may be transmitted in another beacon period. In another configuration, the differential and coherent beacons for a particular tone mask are transmitted one after the other and before any other tone mask beacon is transmitted.

Abstract translation: 公开了在PLC网络中使用新的和较旧的调制方案的方法和系统的实施例，从而支持传统系统。 在一个实施例中，需要被所有节点理解以支持网络的公共帧将使用不同的调制技术被发送两次或更多次。 例如，诸如信标请求，信标和路由请求之类的所有广播帧可以用差分调制发送一次，并且可以用相干调制一次。 在一种配置中，具有差分调制的信标可以在一个信标周期中发送，并且具有相干调制的信标可以在另一个信标周期中发送。 在另一种配置中，用于特定音调掩码的差分和相干信标一个接一个地发送，并且在任何其它音调掩码信标被发送之前传输。

公开(公告)号：US11848643B2

公开(公告)日：2023-12-19

申请号：US18053405

申请日：2022-11-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Il Han Kim ,  Xiaolin Lu

IPC: H02J3/00 ,  H02S50/00 ,  H02S40/32 ,  H02S40/34 ,  H02J3/38 ,  H02J3/46

CPC classification number: H02S50/00 ,  H02J3/38 ,  H02J3/381 ,  H02J3/388 ,  H02J3/466 ,  H02S40/32 ,  H02S40/34 ,  H02J2300/26 ,  Y02E10/56

Abstract: A photovoltaic system with an inverter, at least one solar panel for providing electrical power, and electrical wiring for coupling electrical power from the at least one solar panel to the inverter. Also included is a transmitter for transmitting a messaging protocol along the electrical wiring, where the protocol includes a multibit wireline signal. Also included is circuitry for selectively connecting the electrical power from the at least one solar panel along the electrical wiring to the inverter in response to the messaging protocol.

公开(公告)号：US11818643B2

公开(公告)日：2023-11-14

申请号：US17517700

申请日：2021-11-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton Xhafa ,  Jianwei Zhou ,  Xiaolin Lu ,  Il Han Kim ,  Kaichien Tsai

IPC: H04W40/02 ,  H04W36/00 ,  H04L49/201 ,  H04W8/26 ,  H04L12/18 ,  H04W74/08 ,  H04W72/20 ,  H04W72/27 ,  H04W72/30 ,  H04W92/20 ,  H04W76/15 ,  H04W84/18

CPC classification number: H04W40/023 ,  H04L12/189 ,  H04L49/201 ,  H04W8/26 ,  H04W36/0033 ,  H04W72/20 ,  H04W72/27 ,  H04W72/30 ,  H04W74/0808 ,  H04W76/15 ,  H04W84/18 ,  H04W92/20

Abstract: A network includes a mobile network node (MNN) that includes a mobile node communications manager (MNCM) to facilitate wireless communications to a plurality of stationary network nodes (SNNs) in a wireless network via a wireless network protocol. The MNCM utilizes a multicast address received over the wireless network. The multicast address is assigned to a predetermined network time slot to communicate uplink data from the MNN to the SNNs. The MNN receives downlink data via a separate predetermined network address and time slot assigned to a given SNN.

公开(公告)号：US20230336209A1

公开(公告)日：2023-10-19

申请号：US17952551

申请日：2022-09-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Xiaolin Lu ,  Janwei Zhou ,  Il Han Kim

IPC: H04B1/7156 ,  H04L9/40 ,  H04L9/06 ,  H04W12/037 ,  H04W12/0471

CPC classification number: H04B1/7156 ,  H04L63/061 ,  H04L9/0631 ,  H04L63/0442 ,  H04L63/0823 ,  H04W12/037 ,  H04W12/0471 ,  H04B1/713

Abstract: A network includes a first wireless node that communicates over a wireless network connection. The first wireless node includes a first encryption engine that processes a first initialization data set and a current transmit sequence associated with a current communication to generate a next transmit sequence that is employed to communicate with a second wireless node that derives a next received sequence that corresponds to the next transmit sequence to process a subsequent communication.

公开(公告)号：US20230012741A1

公开(公告)日：2023-01-19

申请号：US17933245

申请日：2022-09-19

Applicant: Texas Instruments Incorporated

Inventor： Wonsoo Kim ,  Il Han Kim ,  Jianwei Zhou

IPC: H04W72/00 ,  H04W72/12 ,  H04L67/1097

Abstract: A selected network element is arranged for distributed transmission resource allocation conflict reduction. The selected network element receives a transmission from one of a first other network element and a second other network element and identifies at least one transmission resource indicated by the received transmission as being reserved by the first other network element and the second other network element. The selected network element stores an indication of each of the at least one identified transmission resource. In response to reading the stored indications, the selected network element selects a different transmission resource that is different from the transmission resource indicated by the stored indications. The selected network element transmits a transmission from the selected network element using the selected different transmission resource.

公开(公告)号：US11546450B2

公开(公告)日：2023-01-03

申请号：US17355231

申请日：2021-06-23

Applicant: Texas Instruments Incorporated

Inventor： Anand G. Dabak ,  Badri N Varadarajan ,  Il Han Kim ,  Tarkesh Pande

IPC: H04L69/22 ,  H04B3/30 ,  H04B10/11 ,  H04B3/54 ,  H04B1/69

Abstract: Methods for building, transmitting, and receiving frame structures in power line communications (PLC) are described. Various techniques described herein provide a preamble design using one or more symbols. One or more preamble symbols may be interspersed within a header portion of a PLC frame to facilitate estimation of a frame boundary and/or sampling frequency offset, for example, in the presence of impulsive noise.

公开(公告)号：US20220158689A1

公开(公告)日：2022-05-19

申请号：US17665537

申请日：2022-02-06

Applicant: Texas Instruments Incorporated

Inventor： Il Han Kim ,  ANAND G. Dabak ,  Tarkesh Pande

IPC: H04B3/54

Abstract: In a powerline communications (PLC) network having a first node and at least a second node on a PLC channel utilizing a band including a plurality of tones, based on at least one channel quality indicator (CQI), the first node allocates for a tone map response payload only a single (1) power control bit for each of a plurality of subbands having two or more tones. The power control bit indicates a first power state or a second power state. The first node transmits a frame including the tone map response payload to the second node. The second node transmits a frame having boosted signal power for the tones in the subbands which have the first power state compared to a lower signal power for the tones in the subbands which have the second power state.

公开(公告)号：US11197222B2

公开(公告)日：2021-12-07

申请号：US15703668

申请日：2017-09-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton Xhafa ,  Jianwei Zhou ,  Xiaolin Lu ,  Il Han Kim ,  Kaichien Tsai

IPC: H04W40/02 ,  H04W74/08 ,  H04W36/00 ,  H04W72/04 ,  H04L12/931 ,  H04W8/26 ,  H04W72/00 ,  H04L12/18 ,  H04W92/20 ,  H04W76/15 ,  H04W84/18

Abstract: A network includes a mobile network node (MNN) that includes a mobile node communications manager (MNCM) to facilitate wireless communications to a plurality of stationary network nodes (SNNs) in a wireless network via a wireless network protocol. The MNCM utilizes a multicast address received over the wireless network. The multicast address is assigned to a predetermined network time slot to communicate uplink data from the MNN to the SNNs. The MNN receives downlink data via a separate predetermined network address and time slot assigned to a given SNN.

公开(公告)号：US10425127B2

公开(公告)日：2019-09-24

申请号：US15601063

申请日：2017-05-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mehul Soman ,  Il Han Kim

IPC: H04B3/54 ,  H04L7/00 ,  H04L27/26 ,  H04L7/04 ,  H04L5/00

Abstract: A method of operating a communication system is disclosed. The method includes forming a data frame having plural orthogonal frequency division multiplex (OFDM) symbols. A first set of preamble subcarriers is allocated to at least one of the OFDM symbols. A second set of data subcarriers is allocated to said at least one of the OFDM symbols.