公开(公告)号：US10063334B2

公开(公告)日：2018-08-28

申请号：US15317114

申请日：2015-06-18

申请人： Kenneth Hann ,  Heikki Laamanen

发明人： Kenneth Hann ,  Heikki Laamanen

IPC分类号： H04J3/06 ,  H04W56/00

CPC分类号： H04J3/0641 ,  H04J3/0644 ,  H04J3/0658 ,  H04J3/0667 ,  H04W56/0015 ,  H04W56/002 ,  H04W56/006

摘要： A device and a method for generating a secondary timing signal that is synchronous with a primary timing signal are presented. The method comprises deriving (401) an auxiliary timing signal from an auxiliary signal received at a first site and correcting (402, 403) the timing phase of the auxiliary timing signal so as to obtain the timing phase for the secondary timing signal. The timing phase is corrected with the aid of the following a) a constant phase shift between the auxiliary timing signal and another auxiliary timing signal derived in a second site where both the primary timing signal and the auxiliary signal are available and b) a dynamic phase shift between the other auxiliary timing signal and the primary timing signal at the second site.

公开(公告)号：US09088376B2

公开(公告)日：2015-07-21

申请号：US11907810

申请日：2007-10-17

申请人： Mikko Laulainen ,  Kenneth Hann ,  Jorma Kausiala

发明人： Mikko Laulainen ,  Kenneth Hann ,  Jorma Kausiala

IPC分类号： H04J3/06

CPC分类号： H04J3/0661 ,  H04J3/065 ,  H04J3/0667

摘要： The invention relates to a method and a system for transferring timing messages in a digital data transfer system. In a solution according to the invention a timing message is transferred (101, 102, 103) within control data carried in a protocol data unit. The timing message is dependent on a transmission moment of the protocol data unit from a network element of the digital data transfer system. The control data is a synchronization status message (Ethernet-SSM) carried in an Ethernet-frame. Therefore, the number of such protocol data units that are dedicated only for timing purposes can be reduced.

摘要翻译： 本发明涉及一种用于在数字数据传输系统中传送定时消息的方法和系统。 在根据本发明的解决方案中，在协议数据单元中携带的控制数据内传送定时消息（101,102,103）。 定时消息取决于来自数字数据传输系统的网络元件的协议数据单元的传输时刻。 控制数据是以太网帧中承载的同步状态消息（Ethernet-SSM）。 因此，可以减少专用于定时目的的协议数据单元的数量。

公开(公告)号：US20120254677A1

公开(公告)日：2012-10-04

申请号：US13422333

申请日：2012-03-16

申请人： Kenneth HANN ,  Mikko LAULAINEN

发明人： Kenneth HANN ,  Mikko LAULAINEN

IPC分类号： G06F11/16

CPC分类号： H04L7/033 ,  H03L7/08

摘要： A device for controlling frequency synchronization includes a processor (101) for controlling a phase-controlled clock signal to achieve phase-locking between the phase-controlled clock signal and a reference clock signal, and for controlling a frequency-controlled clock signal so as to achieve frequency-locking between the frequency-controlled clock signal and the reference clock signal. The processor is also configured to monitor a deviation between the frequency- and phase-controlled clock signals, detect a change of circumstances such as temperature changes causing frequency drifting of the frequency-controlled clock signal, and replace or correct the frequency-controlled clock signal with or on the basis of the phase-controlled clock signal when both the monitored deviation and the detected change of circumstances show correlation confirming frequency drift of the frequency-controlled clock signal. Thus, the phase-controlled clock signal together with the information about possible changes in the circumstances is used for improving the quality of the frequency-controlled clock signal.

摘要翻译： 一种用于控制频率同步的装置包括：处理器（101），用于控制相位控制的时钟信号，以实现相位控制的时钟信号和参考时钟信号之间的相位锁定，并且用于控制频率控制的时钟信号，以便 实现频率控制时钟信号与参考时钟信号之间的频率锁定。 处理器还被配置为监视频率和相位控制的时钟信号之间的偏差，检测诸如导致频率控制的时钟信号的频率漂移的温度变化的情况的变化，并且更换或校正频率控制的时钟信号 当监视的偏差和检测到的环境变化都显示相关确认频率控制的时钟信号的频率漂移时，基于或基于相位控制的时钟信号。 因此，相位控制时钟信号连同关于环境可能变化的信息被用于提高频率控制的时钟信号的质量。

公开(公告)号：US20120128369A1

公开(公告)日：2012-05-24

申请号：US13300728

申请日：2011-11-21

申请人： Kenneth Hann

发明人： Kenneth Hann

IPC分类号： H04B10/00

CPC分类号： H03L7/07 ,  H04J3/047

摘要： A phase synchronized optical master-slave loop comprises at the slave-end a processor (105) configured to include a first timing signal into a bit stream to be transmitted to the master-end, detect a second timing signal from a bit stream received from the master-end, and calculate a phase difference between a regenerated phase signal and a reference phase signal on the basis of a transmission moment of the first timing signal, a first time-stamp indicating a reception moment of the first timing signal at the master-end, a reception moment of the second timing signal, and a second time-stamp indicating a transmission moment of the second timing signal from the master-end. The processor is configured to read the time stamps from the received bit stream that corresponds to a received light signal according to a reception line-code. Thus, conversion of data format is not necessary for the phase synchronization.

摘要翻译： 相位同步光学主从环包括在从端处的处理器（105），被配置为将第一定时信号包括在要发送到主端的比特流中，从从第一定时信号接收的比特流中检测第二定时信号 并且基于第一定时信号的传输力矩计算再生相位信号和参考相位信号之间的相位差，表示主机上的第一定时信号的接收力矩的第一时间戳 -end，第二定时信号的接收时刻，以及指示来自主端的第二定时信号的发送时刻的第二时间戳。 处理器被配置为根据接收线路码从接收到的比特流读取对应于接收到的光信号的时间戳。 因此，数据格式的转换对于相位同步是不必要的。

公开(公告)号：US07864813B2

公开(公告)日：2011-01-04

申请号：US12475985

申请日：2009-06-01

申请人： Jonas Lundqvist ,  Kenneth Hann ,  Heikki Laamanen ,  Mikko Laulainen

发明人： Jonas Lundqvist ,  Kenneth Hann ,  Heikki Laamanen ,  Mikko Laulainen

IPC分类号： H04J3/06

CPC分类号： H04L43/0852 ,  H04J3/0667 ,  H04L43/50

摘要： The invention relates to determining a quantity to be measured from a communication system, such as a transmission delay or the phase difference of clock times. Measurement messages are transmitted (501, 502) between the two areas of the communication system in both transmission directions. Values of the time difference are calculated (503) for the measurement messages transmitted in at least one of the transmission directions, each of which values is the difference between the instant of reception measured at the reception and the instant of transmission measured at the transmission of the measurement message. The values of the time difference are used to calculate (504) an estimate of the distribution of the time difference, on the basis of which an estimate of the minimum value of the time difference is calculated (504).

摘要翻译： 本发明涉及从通信系统确定要测量的数量，例如传输延迟或时钟时间的相位差。 测量消息在两个传输方向上在通信系统的两个区域之间传送（501,502）。 对于在至少一个发送方向上发送的测量消息，计算时差的值（503），其中每个传输方向的值是接收时测量的接收时刻与发送时测量的发送时刻之间的差 测量消息。 使用时差的值来计算（504）时间差分布的估计，基于该时间差的最小值的估计（504）。

公开(公告)号：US08856632B2

公开(公告)日：2014-10-07

申请号：US13422333

申请日：2012-03-16

申请人： Kenneth Hann ,  Mikko Laulainen

发明人： Kenneth Hann ,  Mikko Laulainen

IPC分类号： G06F11/00 ,  H04J3/06 ,  H04L7/00 ,  H04L7/033 ,  H03L7/08

CPC分类号： H04L7/033 ,  H03L7/08

摘要： A device for controlling frequency synchronization includes a processor for controlling a phase-controlled clock signal to achieve phase-locking with a reference clock signal, and for controlling a frequency-controlled clock signal so as to achieve frequency-locking with the reference clock signal. The processor is also configured to monitor a deviation between the frequency and phase-controlled clock signals, detect a change of circumstances such as temperature changes causing frequency drifting of the frequency-controlled clock signal, and replace or correct the frequency-controlled clock signal with, or on the basis of, the phase-controlled clock signal when both the monitored deviation and the detected change of circumstances show correlation confirming frequency drift of the frequency-controlled clock signal.

摘要翻译： 一种用于控制频率同步的装置包括一个处理器，用于控制相位控制的时钟信号以通过参考时钟信号实现锁相，并且用于控制频率控制的时钟信号，以便利用参考时钟信号实现频率锁定。 处理器还被配置为监视频率和相位控制的时钟信号之间的偏差，检测出导致频率漂移的频率控制时钟信号的温度变化等情况的变化，以及更换或校正频率控制的时钟信号 ，或者基于相位控制的时钟信号，当监视的偏差和检测到的环境变化都显示相关确认频率控制的时钟信号的频率漂移时。

公开(公告)号：US08731003B2

公开(公告)日：2014-05-20

申请号：US12688022

申请日：2010-01-15

申请人： Heikki Laamanen ,  Markus Hurme ,  Kenneth Hann ,  Jonas Lundqvist

发明人： Heikki Laamanen ,  Markus Hurme ,  Kenneth Hann ,  Jonas Lundqvist

IPC分类号： H04J3/06

CPC分类号： H04J3/0641 ,  H04J3/0667 ,  H04J3/0676 ,  H04J3/14

摘要： An arrangement for adjusting a clock signal in a network element of a communications network includes a processor device arranged to produce a control variable containing information about synchronization messages received from at least two other network elements. A situation in which the reception from a sending network element of synchronization messages of a good enough quality ceases will not significantly disturb the clock signal to be adjusted because only part of the control variable used for the adjustment depends on synchronization messages sent by an individual network element. In a preferred arrangement, the reference value of the control variable is changed in response to a situation where the reception from a sending network element of synchronization messages of a good enough quality ceases. Thus it is possible to reduce the change of the difference between the control variable and its reference value which further reduces disturbances caused in the clock signal to be adjusted.

摘要翻译： 用于调整通信网络的网络元件中的时钟信号的装置包括被配置为产生包含关于从至少两个其它网络元件接收的同步消息的信息的控制变量的处理器设备。 由于仅用于调整的控制变量的一部分取决于由各个网络发送的同步消息，否则来自具有足够好的质量的同步消息的发送网络元件的接收停止将不会显着地干扰要调整的时钟信号 元件。 在优选的布置中，控制变量的参考值响应于来自具有足够好质量的同步消息的发送网络元素的接收停止的情况而改变。 因此，可以减小控制变量与其参考值之间的差异的变化，这进一步减少了要调整的时钟信号引起的干扰。

公开(公告)号：US20080298525A1

公开(公告)日：2008-12-04

申请号：US12128008

申请日：2008-05-28

申请人： Kenneth HANN ,  Heikki Laamanen ,  Mikko Laulainen

发明人： Kenneth HANN ,  Heikki Laamanen ,  Mikko Laulainen

IPC分类号： H04L7/00

CPC分类号： H04L7/0008 ,  H04J1/00

摘要： The invention relates to a method and arrangement for transferring synchronizing information in a data transmission system including modem connections. The arrangement according to the invention comprises a modulator (207) that is arranged to generate an analog signal (222) modulated by synchronizing information, the frequency spectrum of said signal being located in a frequency range that falls outside the data transmission bands of the modem line connected to the network element. The arrangement includes a switching circuit (208) that is arranged to connect said analog signal to a data transmission cable (206) that forms part of said modem line connected to a network element. The arrangement includes a second switching circuit (209) that is arranged to receive said analog signal from a data transmission cable that forms part of the modem line connected to the second network element. The arrangement also includes a regenerator (209) that is arranged to regenerate said synchronizing information from said analog signal.

摘要翻译： 本发明涉及用于在包括调制解调器连接的数据传输系统中传送同步信息的方法和装置。 根据本发明的装置包括调制器（207），其被配置为产生通过同步信息调制的模拟信号（222），所述信号的频谱位于落在调制解调器的数据传输频带之外的频率范围内 线连接到网元。 该装置包括一个切换电路（208），它被设置成将所述模拟信号连接到形成连接到网络元件的所述调制解调器线路的一部分的数据传输电缆（206）。 该装置包括第二切换电路（209），其被配置为从构成连接到第二网络元件的调制解调器线路的一部分的数据传输电缆接收所述模拟信号。 该装置还包括再生器（209），其被设置为从所述模拟信号再生所述同步信息。

公开(公告)号：US20170134108A1

公开(公告)日：2017-05-11

申请号：US15317114

申请日：2015-06-18

申请人： Kenneth HANN ,  Heikki LAAMANEN

发明人： Kenneth HANN ,  Heikki Laamanen

IPC分类号： H04J3/06 ,  H04W56/00

CPC分类号： H04J3/0641 ,  H04J3/0644 ,  H04J3/0658 ,  H04J3/0667 ,  H04W56/0015 ,  H04W56/002 ,  H04W56/006

摘要： A device and a method for generating a secondary timing signal that is synchronous with a primary timing signal are presented. The method comprises deriving (401) an auxiliary timing signal from an auxiliary signal received at a first site and correcting (402, 403) the timing phase of the auxiliary timing signal so as to obtain the timing phase for the secondary timing signal. The timing phase is corrected with the aid of the following a) a constant phase shift between the auxiliary timing signal and another auxiliary timing signal derived in a second site where both the primary timing signal and the auxiliary signal are available and b) a dynamic phase shift between the other auxiliary timing signal and the primary timing signal at the second site.

公开(公告)号：US09213317B2

公开(公告)日：2015-12-15

申请号：US12254361

申请日：2008-10-20

申请人： Mikko Laulainen ,  Kenneth Hann

发明人： Mikko Laulainen ,  Kenneth Hann

IPC分类号： H04J3/06 ,  G04G7/00 ,  H04W56/00

CPC分类号： G04G7/00 ,  H04J3/0658 ,  H04J3/0667 ,  H04W56/0035 ,  H04W56/0055

摘要： The invention relates to transferring of a time of day value between network elements of a data transfer network. It has been surprisingly detected that the phase reference signals available to various network elements can be utilized in the synchronization of time of day values between these network elements. In the solution according to the invention, a first network element sends to a second network element a difference variable (401, 402, 403) that indicates how much the timing phase of the time of day value maintained in the first network element differs from the timing phase of the phase reference signal available to the first network element. In the second network element that receives the message, an estimate of the time of day value is formed (404, 405) based on the difference variable and the timing phase of the phase reference signal available to the second network element.

摘要翻译： 本发明涉及在数据传送网络的网元之间传送时间值。 惊奇地发现，可以在各种网络元件之间的时间值的同步中使用可用于各种网络元件的相位参考信号。 在根据本发明的解决方案中，第一网络元件向第二网络元件发送一个差异变量（401,402,403），该差异变量指示在第一网元中保持的时间值的定时相位与 相位参考信号的定时相位可用于第一网络元件。 在接收到该消息的第二网元中，基于第二网元可用的差分变量和相位参考信号的定时相位，形成时间值估计（404,405）。