公开(公告)号：WO2008149958A3

公开(公告)日：2009-02-26

申请号：PCT/JP2008060402

申请日：2008-05-30

Applicant: PANASONIC CORP ,  OHMI SHINICHIRO ,  URABE YOSHIO

Inventor： OHMI SHINICHIRO ,  URABE YOSHIO

IPC: H04L12/403 ,  H04B3/54

CPC classification number: H04B3/54 ,  H04B2203/5408 ,  H04B2203/5445 ,  H04L5/0007 ,  H04L5/0044 ,  H04L12/4035 ,  H04L12/413

Abstract: A communication method in a communication system which includes a master apparatus and plural slave apparatuses including at least first, second and third slave apparatuses, that are connected to communication medium and are associated with plural cyclic slots including at least first and second slots for triggering data transmission after a latency time, wherein data transmissions of the first and the second slave apparatuses are triggered by the first slot; and data transmission of the third slave apparatus is triggered by the second slot, the method including: sensing the communication medium by the master apparatus; and modifying, by the master apparatus, the first slave apparatus so as to trigger the data transmission of the first slave apparatus by a third slot which differs from the first and the second slots when the data transmission of the first slave apparatus triggered by the first slot is sensed in the sensing process. The method is particularly useful in power line communications system and allows to avoid collisions therein.

Abstract translation: 一种通信系统中的通信方法，包括主设备和多个从设备，至少包括第一，第二和第三从设备，其连接到通信介质并且与多个循环槽相关联，所述多个循环槽包括用于触发数据的至少第一和第二槽 在等待时间之后的传输，其中第一和第二从设备的数据传输由第一时隙触发; 并且所述第三从属设备的数据传输由所述第二时隙触发，所述方法包括：通过所述主设备感测所述通信介质; 以及由所述主设备修改所述第一从设备，以便当由所述第一从设备触发的所述第一从设备的数据传输与所述第一和第二时隙不同的第三时隙触发所述第一从设备的数据传输时， 在感测过程中感测到槽。 该方法在电力线通信系统中特别有用，并且可以避免其中的冲突。

公开(公告)号：EP2270999A4

公开(公告)日：2015-01-07

申请号：EP09734243

申请日：2009-04-23

Applicant: PANASONIC CORP

Inventor： MATSUSHITA YOSUKE ,  FUJIWARA YUKI ,  HOMMA; HIDEKI ,  MORITA NAOKI ,  URABE YOSHIO

IPC: H04B3/54

CPC classification number: H04B3/54 ,  H04B3/544 ,  H04B2203/5445

公开(公告)号：DE60238228D1

公开(公告)日：2010-12-23

申请号：DE60238228

申请日：2002-05-08

Applicant: PANASONIC CORP

Inventor： MIYANAGA KENJI ,  YAMASAKI HIDETOSHI ,  URABE YOSHIO ,  TAKAI HITOSHI ,  MORI KENICHI

IPC: H04B7/08

公开(公告)号：JP2014127994A

公开(公告)日：2014-07-07

申请号：JP2012285861

申请日：2012-12-27

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： URABE YOSHIO ,  MORITA JUNICHI

IPC: H04W76/02 ,  H04L29/06

CPC classification number: H04W72/0453 ,  H04L29/06 ,  H04L69/28 ,  H04W36/0083 ,  H04W36/14 ,  H04W40/005 ,  H04W76/04

Abstract: PROBLEM TO BE SOLVED: To switch frequency bands to be used at high speed.SOLUTION: In switching frequency bands by a Fast Session Transfer (FST), a timeout value (Link Loss Time-out: LLT) is set on the basis of change of a communication state, a switching setting sequence including a step in which the set timeout value is transmitted to a radio station of a communication partner is performed, and the frequency bands are switched when the time of the timeout value elapses from the time when the switching setting sequence is completed. For example, a larger timeout value (LLT=T1) is set when connection is established, and the LLT is changed (LLT=T2-T4) on the basis of the state of the transmission data or change of a transmission path state, for example.

Abstract translation: 要解决的问题：以高速切换频带。解决方案：在快速会话传输（FST）切换频段中，根据更改设置超时值（Link Loss Time-out：LLT） 执行通信状态的切换设置顺序，其中，执行将设定的超时值发送到通信对方的无线站的步骤，并且当从超时值的时间起经过超时值的时间时切换频带 切换设置顺序完成。 例如，当建立连接并且基于传输数据的状态或传输路径状态的改变而LLT被改变（LLT = T2-T4）时，设置较大的超时值（LLT = T1），对于 例。

公开(公告)号：JP2012213027A

公开(公告)日：2012-11-01

申请号：JP2011077441

申请日：2011-03-31

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： URABE YOSHIO ,  ANDO KAZUHIRO ,  IRIE MASATAKA ,  TAKAHASHI HIROSHI

IPC: H04B17/00

CPC classification number: H04L27/2649 ,  H04B7/0828 ,  H04B17/327

Abstract: PROBLEM TO BE SOLVED: To provide a signal detection device and a signal detection method which make it possible to maintain the accuracy of signal detection even when a power level fluctuates greatly.SOLUTION: In a signal detection device 100, a multiplier 102 multiplies a first distribution signal having a received signal distributed thereto and a first multiplication signal together, and an integrator 104 integrates, by an integration period, the multiplication result obtained by the multiplier 102 to calculate a first correlation value. A multiplier 103 multiplies a second distribution signal having a received signal distributed thereto and a second multiplication signal together, and an integrator 105 integrates, by an integration period, the multiplication result obtained by the multiplier 103 to calculate a second correlation value. A delay unit 101 delays the first or the second distribution signal by time T1 to create the first multiplication signal and delays the same by time T2 (T2>T1) to create the second distribution signal. A determination unit 108 determines, based on the first and the second correlation values, whether there exists a signal to be detected which is a periodic signal in cycle T1 or a periodic signal in cycle T2.

Abstract translation: 要解决的问题：提供一种信号检测装置和信号检测方法，即使当功率电平波动很大时也能够保持信号检测的精度。 解决方案：在信号检测装置100中，乘法器102将具有分配给其的接收信号的第一分配信号和第一相乘信号相乘，积分器104将积分周期积分为由 乘法器102计算第一相关值。 乘法器103将具有分配给其的接收信号的第二分配信号和第二乘法信号相乘，并且积分器105通过积分周期积分乘法器103获得的相乘结果，以计算第二相关值。 延迟单元101通过时间T1延迟第一或第二分配信号以产生第一乘法信号，并且通过时间T2（T2> T1）延迟相同，以产生第二分配信号。 确定单元108基于第一和第二相关值确定是否存在作为周期T1中的周期性信号的检测信号或周期T2中的周期性信号。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2009050033A

公开(公告)日：2009-03-05

申请号：JP2008310051

申请日：2008-12-04

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： NAKAHARA HIDEKI ,  TANAKA KOICHIRO ,  MORI KENICHI ,  URABE YOSHIO ,  TAKAI HITOSHI

IPC: H04L27/22 ,  H04L7/033 ,  H04L7/04 ,  H04L27/00 ,  H04L27/233

CPC classification number: H04L7/041 ,  H04L7/0334 ,  H04L7/046 ,  H04L27/2332 ,  H04L2027/0036 ,  H04L2027/0067 ,  H04L2027/0095

Abstract: PROBLEM TO BE SOLVED: To stably calculate a correlation value for correcting a phase shift from a rear portion of a preamble portion in which a characteristic of a detected signal is stable, and perform phase correction with high accuracy. SOLUTION: A detected signal 111 contains a preamble portion which includes symbol alternations, followed by a unique word portion, and a data portion. A phase rotation section 104 corrects the phase of the detected signal 111 by using an effective correction value 118 calculated by a correction value determination section 103. Each time a symbol alternation is detected, a correction value calculation section 102 averages the phase shift in the detected signal 111 for a predetermined length, thereby calculating a correction value 115. A correction value determination section 103 stores a plurality of correction values 115 calculated in the correction value calculation section 102 in a chronological order. When the unique word portion is detected, the correction value determination section 103 retains a correction value which is arrived at by going back a predetermined number of correction values among the stored correction values, and outputs the correlation value as the effective correction value 118 to the phase rotation section 104. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了稳定地计算用于校正来自检测信号的特性的前导部分的后部的相移的相关值稳定，并且以高精度执行相位校正。 解决方案：检测信号111包含前导码部分，其包括符号替换，后跟唯一字部分和数据部分。 相位旋转部分104通过使用由校正值确定部分103计算出的有效校正值118来校正检测信号111的相位。每当检测到符号交替时，校正值计算部分102对所检测到的相位偏移进行平均化 信号111预定长度，从而计算校正值115.校正值确定部分103按时间顺序存储在校正值计算部分102中计算的多个校正值115。 当检测到唯一字部分时，校正值确定部分103保留通过在存储的校正值中返回预定数量的校正值而得到的校正值，并将相关值作为有效校正值118输出到 相位旋转部104.版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008301263A

公开(公告)日：2008-12-11

申请号：JP2007145973

申请日：2007-05-31

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： OMI SHINICHIRO ,  HONMA HIDEKI ,  URABE YOSHIO ,  OKAZAKI YOSHINORI ,  MATSUSHITA YOSUKE

IPC: H04L12/28

CPC classification number: H04L12/43 ,  H04L12/2838

Abstract: PROBLEM TO BE SOLVED: To provide a communication method capable of transmitting data periodically under limitations on delay while ensuring a QoS.
SOLUTION: Data frames PR1 to PR3 to be transmitted in response to data D1 to D3 have reservation information added to header portions Ph1 to Ph3. When the other PLC modem 100 receiving the data frame PR1 receives the header Ph1, it prohibits transmission only during a period Tv1 when the data frame PR1 and a reply frame Pa1 therefor are transmitted, and it also sets a reservation interval Rv1 for the next transmission which is obtained from the reservation information of the header Ph1 as a transmission prohibiting interval.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供能够在确保QoS的同时在延迟限制下周期性地发送数据的通信方法。 解决方案：响应于数据D1至D3发送的数据帧PR1至PR3具有添加到标题部分Ph1至Ph3的预留信息。 当接收到数据帧PR1的其他PLC调制解调器100接收到报头Ph1时，仅在发送数据帧PR1和其应答帧Pa1的期间Tv1期间禁止发送，并且还设置用于下一次发送的预约间隔Rv1 其作为发送禁止间隔从报头Ph1的预约信息获得。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2014179682A

公开(公告)日：2014-09-25

申请号：JP2013050666

申请日：2013-03-13

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： RYU IKETSU ,  NISHINO SHOICHI ,  KAWAHARA TOYOKI ,  NAKA TAKESHI ,  URABE YOSHIO ,  MORITA JUNICHI

IPC: H04W48/18 ,  H04B1/04 ,  H04W28/06 ,  H04W74/02

CPC classification number: H04W72/0453 ,  H04W72/10 ,  H04W74/02 ,  H04W74/0866 ,  H04W88/06

Abstract: PROBLEM TO BE SOLVED: To provide a transmitter capable of improving communication quality at the time of switching from millimeter wave communication to microwave communication.SOLUTION: The transmitter includes: a first transmitter unit for transmitting communication data using a first communication path that is band controlled using a dedicated band and a non-dedicated band; a second transmitter unit for transmitting communication data using a second communication path that is priority controlled on a priority-by-priority basis; a switchover control unit for switching between transmission by the first transmitter unit and transmission by the second transmitter unit; and a parameter setting unit for setting a communication parameter for performing communication using the second communication path, when switching from the transmission by the first transmitter unit to the transmission by the second transmitter unit.

Abstract translation: 要解决的问题：提供一种能够在从毫米波通信切换到微波通信时提高通信质量的发射机。解决方案：发射机包括：第一发射机单元，用于使用频带控制的第一通信路径发送通信数据 使用专用频带和非专用频段; 第二发送单元，用于使用优先级优先控制的第二通信路径发送通信数据; 切换控制单元，用于在第一发送单元的发送与第二发送单元的发送之间进行切换; 以及参数设定单元，用于当从第一发送单元的发送切换到第二发送单元的发送时，设定用于使用第二通信路径进行通信的通信参数。

公开(公告)号：JP2014120848A

公开(公告)日：2014-06-30

申请号：JP2012273276

申请日：2012-12-14

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： MORITA JUNICHI ,  URABE YOSHIO

IPC: H04W4/00 ,  H04W24/08 ,  H04W48/16 ,  H04W48/18 ,  H04W84/18 ,  H04W88/06

CPC classification number: H04L41/0668 ,  H04L43/0888 ,  H04L45/22 ,  H04W72/02 ,  H04W72/085 ,  H04W84/18

Abstract: PROBLEM TO BE SOLVED: To switch communication paths for data communication seamlessly to reduce overhead required for switching communication paths for wireless communication.SOLUTION: A transmission terminal 10 communicates with a reception terminal 30, using a first communication path (60 GHz band) and a second communication path (2.4 GHz band or 5 GHz band). A first communication path connection detection section 17 detects connection or disconnection of the first communication path with the reception terminal 30. A throughput measurement section 18 measures each throughput of the first communication path and the second communication path. A terminal control section 20, on the basis of detection results of connection or disconnection and each throughput of the first communication path and the second communication path, determines whether the communication paths for data transfer have been switched or not. A communication path switching section 13 switches the communication paths for data transfer to the first communication path or the second communication path.

Abstract translation: 要解决的问题：无缝地切换用于数据通信的通信路径，以减少切换用于无线通信的通信路径所需的开销。解决方案：传输终端10使用第一通信路径（60GHz频带）和 第二通信路径（2.4GHz频带或5GHz频带）。 第一通信路径连接检测部分17检测与接收终端30的第一通信路径的连接或断开。吞吐量测量部分18测量第一通信路径和第二通信路径的每个吞吐量。 终端控制部分20基于连接或断开的检测结果以及第一通信路径和第二通信路径的每个吞吐量，确定数据传送的通信路径是否已被切换。 通信路径切换部13将用于数据传送的通信路径切换到第一通信路径或第二通信路径。

公开(公告)号：JP2013192159A

公开(公告)日：2013-09-26

申请号：JP2012058608

申请日：2012-03-15

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： TAKAHASHI HIROSHI ,  URABE YOSHIO ,  ANDO KAZUHIRO ,  OKA NAOTO ,  IRIE MASATAKA

IPC: H04B1/16 ,  H04B7/10

CPC classification number: Y02B60/50

Abstract: PROBLEM TO BE SOLVED: To provide a signal detection device and a signal detection method that improve power detection sensitivity by reducing erroneous detection where noise is detected as a signal.SOLUTION: A power detection part 101 detects power of an inputted reception signal and, when detecting power exceeding a power detection threshold, outputs a trigger to a storage part 102. On being inputted the trigger, the storage part 102 stores a first reception signal. Also, when being inputted the next trigger, the storage part 102 outputs the stored first reception signal to a multiplier 103 and newly stores a second reception signal. The multiplier 103 multiplies the first reception signal and the second reception signal by each other. An integrator 104 integrates multiplication results outputted from the multiplier 103 for a predetermined period to thereby obtain a correlation value between the first reception signal and the second reception signal. An absolute value calculation part 105 calculates an absolute value of the correlation value outputted from the integrator 104. A determination part 106 determines, based on the absolute value of the correlation value outputted from the absolute value calculation part 105, whether there is a detection target signal or not.

Abstract translation: 要解决的问题：提供一种信号检测装置和信号检测方法，其通过减少检测到噪声的错误检测作为信号来提高功率检测灵敏度。解决方案：功率检测部分101检测输入的接收信号的功率，并且当 检测超过功率检测阈值的功率，将触发输出到存储部102.在输入触发时，存储部102存储第一接收信号。 此外，当输入下一个触发时，存储部102将存储的第一接收信号输出到乘法器103，并且新存储第二接收信号。 乘法器103将第一接收信号和第二接收信号彼此相乘。 积分器104将从乘法器103输出的相乘结果积分预定的周期，从而获得第一接收信号和第二接收信号之间的相关值。 绝对值计算部105计算从积分器104输出的相关值的绝对值。判定部106基于从绝对值计算部105输出的相关值的绝对值，判定是否存在检测对象 信号与否。