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：US20120239962A1

公开(公告)日：2012-09-20

申请号：US13419478

申请日：2012-03-14

申请人： Kenneth HANN ,  Mikko LAULAINEN ,  Heikki LAAMANEN ,  Jonas LUNDQVIST

发明人： Kenneth HANN ,  Mikko LAULAINEN ,  Heikki LAAMANEN ,  Jonas LUNDQVIST

IPC分类号： G06F1/10

CPC分类号： H04J3/0664 ,  H04L7/08

摘要： A device for controlling a clock signal generator includes a processor (101) for forming at least two mutually different control quantities on the basis of reception moments of timing messages such as time stamps, where the reception moments are expressed as time values based on a first clock signal and the timing messages are transmitted in accordance with a second clock signal. The processor also calculates a weighted sum of the control quantities, and controls the clock signal generator with the weighted sum so as to synchronize the first clock signal and the second clock signal. The control quantities may represent, for example, a filtered value of observed phase-errors, a phase-error corresponding to a minimum observed transfer delay, and phase-errors corresponding to a given portion of the delay distribution. Using the weighted sum of the mutually different control quantities improves the utilization of the information content of the timing messages.

摘要翻译： 用于控制时钟信号发生器的装置包括：处理器（101），用于基于诸如时间戳的定时消息的接收时刻形成至少两个相互不同的控制量，其中接收时刻表示为基于第一 时钟信号和定时消息根据第二时钟信号发送。 处理器还计算控制量的加权和，并且以加权和控制时钟信号发生器，以使第一时钟信号和第二时钟信号同步。 控制量可以表示例如观察到的相位误差的滤波值，对应于最小观察到的传输延迟的相位误差，以及对应于延迟分布的给定部分的相位误差。 使用相互不同的控制量的加权和提高了定时消息的信息内容的利用率。

公开(公告)号：US20090296795A1

公开(公告)日：2009-12-03

申请号：US12475985

申请日：2009-06-01

申请人： Jonas LINDQVIST ,  Kenneth HANN ,  Heikki LAAMANEN ,  Mikko LAULAINEN

发明人： Jonas LINDQVIST ,  Kenneth HANN ,  Heikki LAAMANEN ,  Mikko LAULAINEN

IPC分类号： H04B17/00

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：US20100183036A1

公开(公告)日：2010-07-22

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：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：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：US20120300889A1

公开(公告)日：2012-11-29

申请号：US13477399

申请日：2012-05-22

申请人： Kenneth HANN ,  Mikko LAULAINEN

发明人： Kenneth HANN ,  Mikko LAULAINEN

IPC分类号： H04L7/04

CPC分类号： H04J3/0664 ,  H03L7/08

摘要： A device for controlling frequency synchronization includes a processor for controlling a frequency-controlled clock signal on the basis of received timing messages so as to achieve frequency-locking between the frequency-controlled clock signal and a reference clock signal. For the purpose of finding such timing messages which have experienced similar transfer delays and thus are suitable for the frequency control, the processor is configured to control a phase-controlled clock signal on the basis of the timing messages so as to achieve phase-locking between the phase-controlled clock signal and the reference clock signal, and to select the timing messages to be used for the frequency control on the basis of phase-error indicators related to the phase control. Thus, the phase-controlled clock signal is an auxiliary clock signal that is utilized for performing the frequency control.

摘要翻译： 用于控制频率同步的装置包括：处理器，用于基于接收到的定时消息来控制频率控制的时钟信号，以便实现频率控制的时钟信号和参考时钟信号之间的频率锁定。 为了找到已经经历类似的传输延迟并因此适合于频率控制的定时消息，处理器被配置为基于定时消息来控制相位控制的时钟信号，以便实现相位锁定 相位控制时钟信号和参考时钟信号，并且基于与相位控制相关的相位误差指示来选择要用于频率控制的定时消息。 因此，相位控制时钟信号是用于执行频率控制的辅助时钟信号。

公开(公告)号：US20090109954A1

公开(公告)日：2009-04-30

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

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）。

公开(公告)号：US20080310441A1

公开(公告)日：2008-12-18

申请号：US11845876

申请日：2007-08-28

申请人： Kenneth HANN

发明人： Kenneth HANN

IPC分类号： H04L12/56

CPC分类号： H01R27/02 ,  H01R29/00 ,  H01R31/005 ,  H01R2201/04 ,  H04J3/1623

摘要： A physical data transmission port in a network element of a data network, suited for realizing for instance both an electric packet switched Ethernet connection and an electric time slot switched E1/T1 connection. It has surprisingly been found out that the electric connector (101) and connected circuits provided in the network element can be arranged to support more than one wiring standard. For example the generally used RJ connector can be arranged to support both the RJ45 wiring standard and the RJ48c wiring standard, in which case, with the electric connector (101), there can be realized a physical data transmission port that is suited for realizing both an 10/100 Ethernet connection and an E1/T1 connection.

摘要翻译： 数据网络网元中的物理数据传输端口，适用于实现例如电包交换以太网连接和电时隙交换E1 / T1连接。 令人惊奇地发现，电连接器（101）和设置在网元中的连接电路可以被布置成支持多于一个布线标准。 例如，通常使用的RJ连接器可以配置为支持RJ45接线标准和RJ48c接线标准，在这种情况下，通过电连接器（101），可以实现适合实现两者的物理数据传输端口 10/100以太网连接和E1 / T1连接。