公开(公告)号：US20180262309A1

公开(公告)日：2018-09-13

申请号：US15977092

申请日：2018-05-11

申请人： Wi-Fi One, LLC

发明人： Yutaka MURAKAMI ,  Masayuki ORIHASHI ,  Akihiko MATSUOKA

IPC分类号： H04L5/00 ,  H04W52/52 ,  H04B7/06 ,  H04L1/06 ,  H04L25/02 ,  H04L29/06 ,  H04L27/26 ,  H04L27/18 ,  H04L27/14 ,  H04L27/12 ,  H04L27/06 ,  H04L27/04 ,  H04B7/08 ,  H04B7/0413 ,  H04W72/04

CPC分类号： H04L5/0048 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0671 ,  H04B7/0689 ,  H04B7/0697 ,  H04B7/082 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/003 ,  H04L25/0204 ,  H04L25/0206 ,  H04L27/04 ,  H04L27/06 ,  H04L27/12 ,  H04L27/14 ,  H04L27/18 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2649 ,  H04L27/2657 ,  H04L27/2659 ,  H04L27/2691 ,  H04L27/2695 ,  H04L69/22 ,  H04W52/52 ,  H04W72/0453

摘要： A plurality of modulation signals is generated. Each of the plurality of modulation signals includes a pilot symbol sequence having a plurality of pilot symbols. Each pilot symbol sequence is inserted at a same temporal point in each modulation signal, and each pilot symbol in the pilot symbol sequence has a non-zero amplitude. A quantity of the plurality of pilot symbols in each pilot symbol sequence is greater than or equal to a quantity of the plurality of modulation signals to be transmitted. The plurality of modulation signals are transmitted in an identical frequency band from a plurality of antennas. Each of the transmitted plurality of modulation signals includes transmission data and one of the pilot symbol sequences.

公开(公告)号：US20170230225A1

公开(公告)日：2017-08-10

申请号：US15494666

申请日：2017-04-24

申请人： WI-FI ONE, LLC

发明人： Yutaka MURAKAMI ,  Masayuki ORIHASHI ,  Akihiko MATSUOKA

IPC分类号： H04L27/26 ,  H04L25/02 ,  H04B7/06

CPC分类号： H04L5/0048 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0671 ,  H04B7/0689 ,  H04B7/0697 ,  H04B7/082 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/003 ,  H04L25/0204 ,  H04L25/0206 ,  H04L27/04 ,  H04L27/06 ,  H04L27/12 ,  H04L27/14 ,  H04L27/18 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2649 ,  H04L27/2657 ,  H04L27/2659 ,  H04L27/2691 ,  H04L27/2695 ,  H04L69/22 ,  H04W52/52 ,  H04W72/0453

摘要： A radio transmission apparatus includes a first antenna, a second antenna, and circuitry configured, based on information associated with an estimated communications channel condition, to generate a single modulation signal or a plurality of modulation signals based on the estimated communications channel condition information, and to (i) transmit the single modulation signal from the first antenna or (ii) transmit the plurality of modulation signals which include different information from each other over an identical frequency band from the first antenna and the second antenna at an identical temporal point. The single modulation signal and the plurality of modulation signals contain parameter information indicating a number of modulation signals transmitted at the same time.

公开(公告)号：US20170195095A1

公开(公告)日：2017-07-06

申请号：US15467260

申请日：2017-03-23

申请人： Wi-Fi One, LLC

发明人： Yutaka MURAKAMI ,  Masayuki ORIHASHI ,  Akihiko MATSUOKA

IPC分类号： H04L5/00 ,  H04L27/12 ,  H04L25/02 ,  H04L27/18 ,  H04B7/06 ,  H04W52/52

CPC分类号： H04L25/0204 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0671 ,  H04B7/0689 ,  H04B7/0697 ,  H04B7/082 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/003 ,  H04L5/0048 ,  H04L25/0206 ,  H04L27/04 ,  H04L27/06 ,  H04L27/12 ,  H04L27/14 ,  H04L27/18 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2649 ,  H04L27/2657 ,  H04L27/2659 ,  H04L27/2691 ,  H04L27/2695 ,  H04L69/22 ,  H04W52/52 ,  H04W72/0453

摘要： A plurality of modulation signals is generated. Each of the plurality of modulation signals includes a pilot symbol sequence having a plurality of pilot symbols. Each pilot symbol sequence is inserted at a same temporal point in each modulation signal, and each pilot symbol in the pilot symbol sequence has a non-zero amplitude. A quantity of the plurality of pilot symbols in each pilot symbol sequence is greater than or equal to a quantity of the plurality of modulation signals to be transmitted. The plurality of modulation signals are transmitted in an identical frequency band from a plurality of antennas. Each of the transmitted plurality of modulation signals includes transmission data and one of the pilot symbol sequences.

公开(公告)号：US20150063271A1

公开(公告)日：2015-03-05

申请号：US14535365

申请日：2014-11-07

申请人： WI-FI ONE, LLC

发明人： Yutaka MURAKAMI ,  Masayuki ORIHASHI ,  Akihiko MATSUOKA

IPC分类号： H04B7/06 ,  H04L27/26

CPC分类号： H04L25/0204 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0671 ,  H04B7/0689 ,  H04B7/0697 ,  H04B7/082 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/003 ,  H04L5/0048 ,  H04L25/0206 ,  H04L27/04 ,  H04L27/06 ,  H04L27/12 ,  H04L27/14 ,  H04L27/18 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2649 ,  H04L27/2657 ,  H04L27/2659 ,  H04L27/2691 ,  H04L27/2695 ,  H04L69/22 ,  H04W52/52 ,  H04W72/0453

摘要： A receiver receives, using a plurality of antennas, a multiplexed signal that includes (i) a first OFDM modulation signal with a subcarrier carrying a symbol including multiplex information and a subcarrier carrying a pilot symbol and a subcarrier carrying a data symbol and (ii) a second OFDM modulation signal with a subcarrier carrying a symbol including multiplex information and a subcarrier carrying the pilot symbol and a subcarrier carrying the data symbol. A decoder uses the symbol including multiplex information and decodes the data symbol.

摘要翻译： 接收机使用多个天线接收多路复用信号，该多路复用信号包括：（i）第一OFDM调制信号与携带包含复用信息的符号的副载波和携带导频符号的子载波和携带数据符号的子载波，以及（ii） 具有携带包含复用信息的符号的子载波的第二OFDM调制信号和承载导频符号的子载波以及承载数据符号的副载波。 解码器使用包括复用信息的符号并对数据符号进行解码。

公开(公告)号：US20200220687A1

公开(公告)日：2020-07-09

申请号：US16823490

申请日：2020-03-19

申请人： Wi-Fi One, LLC

发明人： Yutaka MURAKAMI ,  Masayuki ORIHASHI ,  Akihiko MATSUOKA

IPC分类号： H04L5/00 ,  H04B7/06 ,  H04L1/06 ,  H04L27/26 ,  H04L27/04 ,  H04L27/12 ,  H04L27/14 ,  H04L27/06 ,  H04L29/06 ,  H04L27/18 ,  H04L25/02 ,  H04W52/52

摘要： A radio transmission apparatus determines information indicative of an estimated communications channel condition and generates a single modulation signal or a plurality of modulation signals based on the estimated communications channel condition information. The single modulation signal is transmitted from a first antenna of a plurality of antenna or the plurality of modulation signals are transmitted from the first antenna and at least a second antenna of the plurality of antenna. The plurality of modulation signals include different information from each other and are transmitted over an identical frequency band and at an identical temporal point. The single modulation signal and the plurality of modulation signals contain parameter information indicating a number of modulation signals transmitted at the same time.

公开(公告)号：US20190199409A1

公开(公告)日：2019-06-27

申请号：US16293816

申请日：2019-03-06

申请人： Wi-Fi One, LLC

发明人： Yutaka MURAKAMI ,  Kiyotaka KOBAYASHI ,  Masayuki ORIHASHI ,  Akihiko MATSUOKA

IPC分类号： H04B7/0413 ,  H04B7/06 ,  H04L1/06

CPC分类号： H04B7/0413 ,  H04B7/0608 ,  H04B7/0613 ,  H04B7/0689 ,  H04B7/0697 ,  H04L1/06

摘要： A transmission apparatus includes processing circuitry that generates a first data sequence representing first data or a second data sequence representing second data different from the first data and selects the first data sequence as an output data sequence. A modulation scheme is determined from a plurality of modulation schemes, and the output data sequence is modulated with the determined modulation scheme. Transmission circuitry transmits the modulated output data sequence. A first time interval associated with selecting the first data sequence for the output data sequence is longer than a second time interval associated with determining the determined modulation scheme.

公开(公告)号：US20170078123A1

公开(公告)日：2017-03-16

申请号：US15363162

申请日：2016-11-29

申请人： Wi-Fi One, LLC

发明人： Yutaka MURAKAMI ,  Shinichiro TAKABAYASHI ,  Masayuki ORIHASHI ,  Akihiko MATSUOKA

IPC分类号： H04L27/12 ,  H04L1/00 ,  H04L27/34

CPC分类号： H04L27/12 ,  H04B1/38 ,  H04L1/0003 ,  H04L1/0006 ,  H04L27/206 ,  H04L27/34 ,  H04L27/3455

摘要： A transmission apparatus and method include modulating a transmission signal using a first modulation scheme selected from a plurality of modulation schemes to generate a first symbol sequence. A second symbol, generated using a phase shift keying (PSK) modulation scheme, is inserted in the first symbol sequence to generate a first modulation signal for transmission. A second modulation signal is received that includes a third symbol generated using a PSK modulation scheme and inserted in a second symbol sequence generated using a second modulation scheme selected from the plurality of modulation schemes. The third symbol is extracted from the received modulation signal. A transmission path associated with the received modulation signal is estimated using the third symbol. A received data signal from the second symbol sequence included in the received modulation signal is output using the estimated transmission path.

摘要翻译： 发送装置和方法包括使用从多个调制方案中选择的第一调制方案来调制发送信号，以生成第一符号序列。 使用相移键控（PSK）调制方案产生的第二符号被插入到第一符号序列中，以产生用于传输的第一调制信号。 接收第二调制信号，该第二调制信号包括使用PSK调制方案产生的第三符号，并插入到使用从多个调制方案中选择的第二调制方案产生的第二符号序列中。 从接收到的调制信号中提取第三符号。 使用第三符号来估计与接收的调制信号相关联的传输路径。 使用估计的传输路径输出来自包含在所接收的调制信号中的第二符号序列的接收数据信号。