公开(公告)号：US20170117989A1

公开(公告)日：2017-04-27

申请号：US15377839

申请日：2016-12-13

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob BAEK ,  Woosuk KO ,  Sungryong HONG

IPC: H04L1/00 ,  H04L29/06 ,  H04L27/26 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04L1/0083 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/253 ,  H03M13/255 ,  H03M13/27 ,  H03M13/2707 ,  H03M13/271 ,  H03M13/2721 ,  H03M13/2778 ,  H03M13/6552 ,  H04B7/046 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0061 ,  H04L1/0065 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/0075 ,  H04L1/04 ,  H04L5/0007 ,  H04L5/0044 ,  H04L27/2649 ,  H04L65/4076 ,  H04L65/607 ,  H04L65/80 ,  H04L69/24

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, encoding, by an encoder, PLP(Physical Layer Pipe) data; time interleaving, by a time interleaver, the encoded PLP data; frame mapping, by a framer, the time interleaved PLP data onto at least one signal frames; frequency interleaving, by a frequency interleaver, data in the at least one signal frames; and waveform modulating, by a waveform module, the frequency interleaved data in the at least one signal frame and transmitting, by the waveform module, broadcast signals having the modulated data, wherein the frequency interleaving is conducted according to an interleaving mode, wherein the interleaving mode is determined based on a FFT (Fast Fourier Transform) size.

公开(公告)号：US09609092B2

公开(公告)日：2017-03-28

申请号：US15148216

申请日：2016-05-06

Applicant: APPLIED TRANSFORM, LLC

Inventor： Joon Bae Kim

IPC: H04W4/00 ,  H04L29/06 ,  H04L1/00 ,  H04L1/04 ,  H04L1/08 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04L12/741 ,  H04W84/12

CPC classification number: H04L69/22 ,  H04L1/0042 ,  H04L1/0056 ,  H04L1/0072 ,  H04L1/04 ,  H04L1/08 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2602 ,  H04L27/2608 ,  H04L45/74 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W84/12

Abstract: A wireless OFDM transceiver uses a method of utilizing subcarrier characteristics, such as phase and amplitude, to indicate the bandwidth of a transmitted packet. By using different subcarrier characteristics in the long training symbols of a packet at the transmitter, the packet is associated with different bandwidths. The different bandwidths are used in a wireless network where devices can communicate using different frequency bands that overlap one another and where one is wider than the other.

公开(公告)号：US09609091B2

公开(公告)日：2017-03-28

申请号：US15148164

申请日：2016-05-06

Applicant: APPLIED TRANSFORM, LLC

Inventor： Joon Bae Kim

IPC: H04W4/00 ,  H04L29/06 ,  H04L1/00 ,  H04L1/04 ,  H04L1/08 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04L12/741 ,  H04W84/12

CPC classification number: H04L69/22 ,  H04L1/0042 ,  H04L1/0056 ,  H04L1/0072 ,  H04L1/04 ,  H04L1/08 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2602 ,  H04L27/2608 ,  H04L45/74 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W84/12

Abstract: A wireless OFDM transceiver uses subcarrier characteristics, such as phase and amplitude, to detect the bandwidth of a received packet. By detecting different subcarrier characteristics in the long training symbols of a packet at the receiver, the packet is associated with different bandwidths. The different bandwidths are used in a wireless network where devices can communicate using different frequency bands that overlap one another and where one is wider than the other.

公开(公告)号：US20170019440A1

公开(公告)日：2017-01-19

申请号：US15056716

申请日：2016-02-29

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob BAEK ,  Woosuk KO ,  Sungryong HONG

IPC: H04L29/06 ,  H04L1/00 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04L1/0071 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0075 ,  H04L1/04 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2608 ,  H04L27/2628 ,  H04L27/2647 ,  H04L27/2692 ,  H04L65/4076 ,  H04L65/607 ,  H04L65/80 ,  H04L2001/0093 ,  H04W72/0446

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an encoder to encode service data, a frame builder to build at least one signal frame including the encoded service data, wherein a signal frame includes at least one preamble symbol and at least one sub-frame, a frequency interleaver to frequency interleave data in at least one of the preamble and a sub-frame in the at least one signal frame by using a different interleaving sequence generated based on an interleaving sequence and a symbol offset, a modulator to modulate the frequency interleaved data by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter to transmit the broadcast signals having the modulated data.

Abstract translation: 公开了一种用于发送广播信号的方法和装置。 用于发送广播信号的装置，该装置包括：编码器，对服务数据进行编码;帧构建器，用于构建至少一个包括经编码的服务数据的信号帧，其中，信号帧包括至少一个前导符号和至少一个子帧 频率交织器，用于通过使用基于交织序列和符号偏移产生的不同交织序列对所述至少一个信号帧中的所述前同步码和子帧中的至少一个频率交织数据;调制器，用于调制频率 通过OFDM（正交频分复用）方案的交织数据和发射机发送具有调制数据的广播信号。

公开(公告)号：US09544174B2

公开(公告)日：2017-01-10

申请号：US14982685

申请日：2015-12-29

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04L27/2627 ,  H04L1/0041 ,  H04L1/0058 ,  H04L1/0071 ,  H04L1/04 ,  H04L5/0007 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/2604 ,  H04L27/2626 ,  H04L27/2628 ,  H04L27/2633 ,  H04L27/2647 ,  H04L27/265

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding service data, a mapper for mapping the encoded service data into a plurality of OFDM (Orthogonal Frequency Division Multiplex) symbols to build at least one signal frame, a frequency interleaver for frequency interleaving data in the at least one signal frame by using a different interleaving-seed which is used for every OFDM symbol pair comprised of two sequential OFDM symbols, a modulator for modulating the frequency interleaved data by an OFDM scheme and a transmitter for transmitting the broadcast signals having the modulated data.

Abstract translation: 公开了一种用于发送广播信号的方法和装置。 用于发送广播信号的装置包括用于对服务数据进行编码的编码器，用于将编码的服务数据映射成多个OFDM（正交频分复用）符号以构建至少一个信号帧的映射器，用于频率交织数据的频率交织器 所述至少一个信号帧通过使用用于由两个顺序OFDM符号组成的每个OFDM符号对而使用的不同交织种子，用于通过OFDM方案调制频率交织数据的调制器和用于发送具有 调制数据。

公开(公告)号：US09544093B2

公开(公告)日：2017-01-10

申请号：US14846055

申请日：2015-09-04

Applicant: InterDigital Technology Corporation

Inventor： Jaeyoung Kwak ,  Chang-Soo Koo ,  Robert L. Olesen ,  Aykut Bultan ,  Fatih Ozluturk

IPC: H04L1/06 ,  H04B7/04 ,  H04B7/06 ,  H04L1/04 ,  H04L27/26 ,  H04L5/00 ,  H04L1/00 ,  H04L25/02

CPC classification number: H04L1/0606 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0697 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/04 ,  H04L5/0007 ,  H04L25/0248 ,  H04L27/2601 ,  H04L27/2626 ,  H04L27/2647

Abstract: A method and apparatus for combining space-frequency block coding (SFBC) in a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system is described herein. A transmitter, according to one embodiment, may include four antennas and circuitry configured to transmit in an OFDM symbol time period using both frequency diversity and SFBC. For frequency diversity at least one first data element may be repeated producing at least two second data elements and the two second data elements are transmitted using different subcarriers. For space frequency block coding, a pair of third data elements may be space frequency block coded producing four fourth data elements. The four fourth data elements may be transmitted using two subcarriers and only two of the four antennas.

Abstract translation: 本文描述了用于在多输入多输出（MIMO）正交频分复用（OFDM）系统中组合空频块编码（SFBC）的方法和装置。 根据一个实施例的发射机可以包括四个天线和配置成在OFDM符号时间周期内使用频率分集和SFBC两者进行发送的电路。 对于频率分集，可以重复产生至少两个第二数据元素的至少一个第一数据元素，并且使用不同的子载波来发送两个第二数据元素。 对于空间频率块编码，一对第三数据元素可以是空间频率块编码，产生四个第四数据元素。 四个第四数据元素可以使用两个子载波发送，并且仅四个天线中的两个。

公开(公告)号：US20170005845A1

公开(公告)日：2017-01-05

申请号：US15265265

申请日：2016-09-14

Applicant: LG ELECTRONICS INC.

Inventor： Sangchul MOON ,  Seoyoung BACK ,  Woosuk KO

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/04

CPC classification number: H04L27/2626 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/068 ,  H04B7/0697 ,  H04L1/0041 ,  H04L1/0058 ,  H04L1/0071 ,  H04L1/04 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0053 ,  H04L25/03891 ,  H04L2001/0093 ,  H04W52/322 ,  H04W52/42

Abstract: A broadcast signal transmitter according to one embodiment of the present invention comprises: an input signal generating unit which generates a first input signal and a second input signal; a MIMO encoder which performs MIMO processing of the first input signal and the second input signal to output a first transmission signal and a second transmission signal; and a first OFDM generator and a second OFDM generator which performs OFDM modulation of the first transmission signal and OFDM modulation of the second transmission signal. The MIMO processing applies a MIMO matrix to the first input signal and the second input signal. The MIMO matrix changes phases using a phase rotation matrix, and adjusts power of the first input signal and second input signal using parameter a, wherein the parameter is set to different values in accordance with the modulation types of the first input signal and second input signal.

Abstract translation: 根据本发明的一个实施例的广播信号发射机包括：输入信号产生单元，其生成第一输入信号和第二输入信号; MIMO编码器，其执行所述第一输入信号和所述第二输入信号的MIMO处理，以输出第一发送信号和第二发送信号; 以及执行第一发送信号的OFDM调制和第二发送信号的OFDM调制的第一OFDM发生器和第二OFDM生成器。 MIMO处理将MIMO矩阵应用于第一输入信号和第二输入信号。 MIMO矩阵使用相位旋转矩阵改变相位，并且使用参数a调整第一输入信号和第二输入信号的功率，其中根据第一输入信号和第二输入信号的调制类型将参数设置为不同的值 。

公开(公告)号：US09531527B2

公开(公告)日：2016-12-27

申请号：US14377803

申请日：2013-02-18

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Jiwoong Jang ,  Jaehoon Chung

IPC: H04L5/14 ,  H04L5/00 ,  H04J11/00 ,  H04W72/02 ,  H04W76/02 ,  H04W92/18 ,  H04L1/04

CPC classification number: H04L5/1469 ,  H04J11/003 ,  H04L1/04 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0073 ,  H04W72/02 ,  H04W76/14 ,  H04W92/18

Abstract: A method for transmitting a signal by a first user equipment (UE) configured to perform device-to-device (D2D) communication in a wireless communication system includes transmitting a signal on a subframe for D2D communication to a second UE configured to perform D2D communication, wherein at least one OFDM symbol from among OFDM symbols contained in the subframe includes a repetition signal.

Abstract translation: 一种用于通过被配置为在无线通信系统中执行设备到设备（D2D）通信的第一用户设备（UE）发送信号的方法包括：向被配置为执行D2D通信的第二UE发送用于D2D通信的子帧上的信号 其中，包含在所述子帧中的OFDM符号中的至少一个OFDM符号包括重复信号。

公开(公告)号：US20160255177A1

公开(公告)日：2016-09-01

申请号：US15148164

申请日：2016-05-06

Applicant: APPLIED TRANSFORM, LLC

Inventor： Joon Bae KIM

IPC: H04L29/06 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04L69/22 ,  H04L1/0042 ,  H04L1/0056 ,  H04L1/0072 ,  H04L1/04 ,  H04L1/08 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2602 ,  H04L27/2608 ,  H04L45/74 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W84/12

Abstract: A wireless OFDM transceiver uses subcarrier characteristics, such as phase and amplitude, to detect the bandwidth of a received packet. By detecting different subcarrier characteristics in the long training symbols of a packet at the receiver, the packet is associated with different bandwidths. The different bandwidths are used in a wireless network where devices can communicate using different frequency bands that overlap one another and where one is wider than the other.

Abstract translation: 无线OFDM收发器使用诸如相位和幅度的子载波特性来检测接收到的分组的带宽。 通过在接收机处检测分组的长训练符号中的不同子载波特性，该分组与不同的带宽相关联。 不同的带宽在无线网络中使用，其中设备可以使用彼此重叠的不同频带并且其中一个比另一个更宽。

公开(公告)号：US20160218842A1

公开(公告)日：2016-07-28

申请号：US15093553

申请日：2016-04-07

Applicant: Adaptix, Inc.

Inventor： Xiaodong Li ,  Hui Liu ,  Kemin Li ,  Wenzhong Zhang

IPC: H04L5/00 ,  H04W72/04 ,  H04B17/336 ,  H04L12/803 ,  H04J11/00 ,  H04W72/08

CPC classification number: H04L5/0035 ,  H04B17/336 ,  H04B17/345 ,  H04J11/00 ,  H04J11/003 ,  H04J11/005 ,  H04L1/0003 ,  H04L1/0005 ,  H04L1/0009 ,  H04L1/0011 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0079 ,  H04L1/04 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0042 ,  H04L5/0046 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0073 ,  H04L5/0082 ,  H04L5/0094 ,  H04L5/023 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2601 ,  H04L27/2602 ,  H04L47/125 ,  H04W24/08 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/082 ,  H04W72/085 ,  H04W74/04

Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.