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1. 发明申请

US20190191398A1 Synchronisation of Wireless Base Stations 审中-公开
公开(公告)号：US20190191398A1
公开(公告)日：2019-06-20
申请号：US16281920
申请日：2019-02-21
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Stefano Ruffini , Stefano Stracca
IPC分类号： H04W56/00 , H04J3/06
CPC分类号： H04W56/002 , H04J3/0644 , H04J3/0655 , H04W56/001 , Y02D30/32
摘要： A transport network (20) is connected to a first wireless base station (3, 4) and to a second wireless base station (6). The first wireless base station comprises a remote radio unit (3) and a baseband processing unit (4) which are connected by the transport network (20). A node (16) of the transport network (20) receives a synchronous time division multiplexed communication signal which carries at least a first communication signal between the baseband processing unit (4) and the remote radio unit (3). The node (16) determines a frequency synchronisation signal from the synchronous time division multiplexed communication signal. The node (16) transmits the synchronous time division multiplexed communication signal to the remote radio unit (3) of the first wireless base station. The node (16) transmits the frequency synchronisation signal to the second wireless base station (6). The node (16) also assists with providing phase/time synchronisation to the second wireless base station (6).

2. 发明授权

US09883262B2 Optical network system, optical switch node, master node, and node 有权
公开(公告)号：US09883262B2
公开(公告)日：2018-01-30
申请号：US14407716
申请日：2013-06-13
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Kyota Hattori , Naoki Kimishima , Masahiro Nakagawa , Masaru Katayama , Akira Misawa
IPC分类号： H04J14/00 , H04Q11/00 , H04J14/02 , H04J14/08 , H04J3/08 , H04J3/06
CPC分类号： H04Q11/0005 , H04J3/0655 , H04J3/085 , H04J14/0212 , H04J14/0257 , H04J14/0267 , H04J14/0283 , H04J14/0284 , H04J14/0286 , H04J14/08 , H04Q2011/0033 , H04Q2011/0045 , H04Q2011/005 , H04Q2011/0086 , H04Q2213/1301
摘要： An optical network system includes a master node and a plurality of optical switch nodes, allowing the number of nodes without depending on the number of wavelengths. The master node is configured to: divide a wavelength path having an arbitrary wavelength into time slots each having a predetermined time period; and allocate the time slots to each of the optical switch nodes. Each of the optical switch nodes is configured to: synchronize the time slots based on information delivered from the master node; and thereby transmit or receive a data or performs route switching.

3. 发明申请

US20160344537A1 COMMUNICATION APPARATUS, COMMUNICATION METHOD, AND COMPUTER READABLE MEDIUM 有权
标题翻译：通信设备，通信方法和计算机可读介质
公开(公告)号：US20160344537A1
公开(公告)日：2016-11-24
申请号：US15112867
申请日：2014-05-23
申请人： Mitsubishi Electric Corporation
发明人： Daisuke OSAGAWA
IPC分类号： H04L7/00
CPC分类号： H04L7/0033 , H04J3/0655 , H04J3/0682 , H04L43/0852
摘要： A synchronous frame reception unit receives a synchronous frame describing a reference value for time synchronization with a management apparatus which is transmitted repeatedly from the management apparatus. A propagation delay computation unit computes, each time when the synchronous frame is received, a propagation delay of the synchronous frame. A propagation delay time period computation unit computes, each time when the propagation delay is computed, a propagation delay time period by adding a target value of a synchronous accuracy to the propagation delay. A propagation delays computation unit operates a logical OR operation of M pieces of propagation delay time periods computed for M pieces of synchronous frames which precede a latest synchronous frame. A synchronous determination unit decides, based on the propagation delay of the latest synchronous frame and a logical OR operation result of the M pieces of propagation delay time periods of the M pieces of synchronous frames, whether or not to use the reference value described in the latest synchronous frame for time synchronization with the management apparatus.
摘要翻译：同步帧接收单元从与管理装置重复发送的管理装置接收描述与时间同步的基准值的同步帧。传播延迟计算单元在每次接收到同步帧时计算同步帧的传播延迟。传播延迟时间计算单元通过将传播延迟的同步精度的目标值与传播延迟相加来计算传播延迟时间周期。传播延迟计算单元对于在最新的同步帧之前的M个同步帧计算的M个传播延迟时间段进行逻辑或运算。同步确定单元基于最新的同步帧的传播延迟和M个同步帧的M个传播延迟时间段的逻辑或运算结果来决定是否使用在同一帧中描述的参考值与管理装置进行时间同步的最新同步帧。

4. 发明申请

US20160164745A1 Robust Techniques for Upstream Communication Between Subscriber Stations and a Base Station 审中-公开
公开(公告)号：US20160164745A1
公开(公告)日：2016-06-09
申请号：US15011193
申请日：2016-01-29
申请人： Broadcom Corporation
发明人： Thomas J. QUIGLEY , Jonathan S. Min , Lisa V. Denney , Henry Samueli , Sean F. Nazareth , Feng Chen , Fang Lu , Christopher R. Jones
IPC分类号： H04L12/24 , H04L25/03 , H04L5/00 , H04L12/28 , H04L1/00 , H04B1/10
CPC分类号： H04L41/142 , H04B1/1027 , H04B1/1036 , H04J3/0655 , H04J3/0682 , H04L1/0003 , H04L1/0009 , H04L1/0045 , H04L1/0061 , H04L1/203 , H04L5/003 , H04L5/1446 , H04L12/2801 , H04L25/03019 , H04L25/03057 , H04L25/03343 , H04L27/0014 , H04L27/2601 , H04L27/34 , H04L2025/03808 , H04W72/085 , Y02D50/10
摘要： A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.

5. 发明申请

US20160112185A1 METHOD AND APPARATUS FOR CONFIGURING ONU AS IEEE1588 MASTER CLOCK IN PON 审中-公开
标题翻译：用于在PON中配置ONU作为IEEE1588主时钟的方法和装置
公开(公告)号：US20160112185A1
公开(公告)日：2016-04-21
申请号：US14894624
申请日：2014-07-10
申请人： ALCATEL LUCENT
发明人： Qin YIN , Xiao CHEN , Xili ZHANG , Jianhua ZHU
IPC分类号： H04L7/00 , H04B10/27
CPC分类号： H04L7/0075 , H04B10/27 , H04J3/0655 , H04L7/0008
摘要： A method for making IEEE 1588 master clock configuration for an ONU in a PON includes creating a PTP port on a UNI of the ONU, and generating a corresponding PTP port ME for the PTP port to indicate that the UNI is operating in a master clock mode; generating a 1588 master clock configuration data ME based on PTP port MEs of all PTP ports in the ONU, to store profiles of all PTP ports used as master clock devices; and generating a clock data set ME according to the 1588 master clock configure data ME, to indicate clock source information of all PTP ports used as master clock devices.
摘要翻译：在PON中为ONU制造IEEE 1588主时钟配置的方法包括在ONU的UNI上创建PTP端口，并为PTP端口生成相应的PTP端口ME，以指示UNI以主时钟模式工作 ; 根据ONU中所有PTP端口的PTP端口ME生成1588主时钟配置数据ME，存储用作主时钟设备的所有PTP端口的配置文件; 并根据1588主时钟配置数据ME生成时钟数据集ME，以指示用作主时钟器件的所有PTP端口的时钟源信息。

6. 发明授权

US09264213B2 Time synchronization method for communication system, slave station apparatus, master station apparatus, control device, and program 有权
标题翻译：通信系统，从站设备，主站设备，控制设备和程序的时间同步方法
公开(公告)号：US09264213B2
公开(公告)日：2016-02-16
申请号：US13976188
申请日：2012-02-06
申请人： Seiji Kozaki , Kenichi Nakura , Yoshifumi Hotta , Jun Mizuguchi
发明人： Seiji Kozaki , Kenichi Nakura , Yoshifumi Hotta , Jun Mizuguchi
IPC分类号： H04L7/00 , H04J3/06 , H04L12/24 , H04Q11/00
CPC分类号： H04L7/0075 , H04B10/032 , H04B10/272 , H04J3/0641 , H04J3/0655 , H04J3/0667 , H04Q11/0067 , H04Q2011/0081
摘要： A time synchronization method for a communication system configured to perform protection switching, the communication system including a first network in which a master station and a slave station are connected via plural physical lines including a working line and a backup line and a second network connected to the slave station, the method including a time synchronization in which the slave station executes, when not detecting a communication failure of a downlink signal transmitted from the master station, synchronization processing for synchronizing, based on a clock of the slave station and timing information, time information transmitted to the second network with time information included in a time synchronization command and suppresses, when detecting a communication failure or receiving a switching notification from the master station apparatus, a synchronization error due to a difference between the clock of the slave station and the timing information.
摘要翻译：一种被配置为执行保护切换的通信系统的时间同步方法，所述通信系统包括第一网络，其中主站和从站经由包括工作线路和备用线路的多条物理线路连接，并且第二网络连接到从站，在不检测从主站发送的下行链路信号的通信故障时，包括从站执行的时间同步的方法，用于基于从站的时钟和定时信息同步的同步处理，在时间同步命令中包含时间信息发送到第二网络的时间信息，并且当检测到通信故障或从主站装置接收到切换通知时，抑制由于从站的时钟与时钟之间的差异导致的同步误差时间信息。

7. 发明授权

US09236966B2 Clock synchronization for a machine control system 有权
标题翻译：机器控制系统的时钟同步
公开(公告)号：US09236966B2
公开(公告)日：2016-01-12
申请号：US11289456
申请日：2005-11-30
申请人： Anthony D. McNealy , Alan L. Ferguson
发明人： Anthony D. McNealy , Alan L. Ferguson
IPC分类号： G06F15/16 , H04J3/06
CPC分类号： H04J3/0638 , H04J3/0655 , H04J3/0661
摘要： A clock synchronized control system includes a controller configured to control at least one function of a work machine. The controller may also be configured to select a clock source from among a plurality of external clock sources based on a predetermined order. The controller may be further configured to obtain information from the selected clock source. The controller may also be configured to use the obtained information to affect the at least one function of the work machine.
摘要翻译：时钟同步控制系统包括被配置为控制作业机器的至少一个功能的控制器。控制器还可以被配置为基于预定顺序从多个外部时钟源中选择时钟源。控制器还可以被配置为从所选择的时钟源获得信息。控制器还可以被配置为使用获得的信息来影响作业机器的至少一个功能。

8. 发明授权

US09112612B2 Relay device, station-side optical communication device, communication system, and bandwidth allocation method 有权
标题翻译：中继设备，站侧光通信设备，通信系统和带宽分配方法
公开(公告)号：US09112612B2
公开(公告)日：2015-08-18
申请号：US13819781
申请日：2010-12-27
申请人： Jun Mizuguchi , Yoshifumi Hotta , Koshi Sugimura
发明人： Jun Mizuguchi , Yoshifumi Hotta , Koshi Sugimura
IPC分类号： H04B10/29 , H03J3/06 , H04Q11/00 , H04J3/06
CPC分类号： H04B10/29 , H04J3/0655 , H04Q11/0067 , H04Q11/0071 , H04Q2011/0064 , H04Q2011/0088
摘要： A relay device that relays communication between a low-speed communication device performing uplink 1 G transfer and a high-speed communication device performing uplink 10 G transfer and a station-side optical communication device, wherein the relay device includes a low-speed reception unit that converts an optical signal received from the low-speed communication device to an electric signal, a buffer that buffers the electric signal, and a high-speed transmission unit that transmits, to the station-side optical communication device, a bandwidth allocation request requesting bandwidth allocation for communication from its own unit to the station-side optical communication device, and within a transmission permitted time period allocated by the station-side optical communication device, reads an electric signal stored in the buffer, converts the electric signal to an optical signal having a communication speed of 10 G, and transmits the optical signal.
摘要翻译：一种中继设备，用于中继执行上行链路G传送的低速通信设备与执行上行链路10G传输的高速通信设备和站侧光通信设备之间的通信，其中所述中继设备包括低速接收单元其将从低速通信装置接收的光信号转换为电信号，缓冲电信号的缓冲器以及向站台光通信装置发送请求的带宽分配请求的高速发送部用于从其单元到站侧光通信设备的通信的带宽分配，并且在由站侧光通信设备分配的传输允许时间段内，读取存储在缓冲器中的电信号，将电信号转换为光信号的通信速度为10G，并发送光信号。

9. 发明授权

US09042737B2 Clock and data recovery unit and power control method therefor and PON system 有权
标题翻译：时钟和数据恢复单元及其功率控制方法和PON系统
公开(公告)号：US09042737B2
公开(公告)日：2015-05-26
申请号：US13985128
申请日：2012-02-21
申请人： Naruto Tanaka
发明人： Naruto Tanaka
IPC分类号： H04B10/00 , H04L7/00 , H03L7/08 , H04B10/272 , H04J3/06 , H04W52/02 , H04L7/033 , H04J14/02
CPC分类号： H03L7/0802 , H03L7/0807 , H03L7/113 , H04B10/272 , H04J3/0655 , H04J14/0247 , H04J14/0252 , H04J14/0267 , H04J14/0282 , H04L7/0079 , H04L7/033 , H04W52/0287 , Y02D70/00
摘要： In the present invention, wasted power consumption caused when a clock and data recovery unit in an optical network unit in a PON system is activated from a power-saving state is reduced and rapid, secure communication is performed. A clock and data recovery unit includes a phase-locked loop that can be set to normal mode or power-saving mode and that includes a voltage-controlled oscillator and recovers a clock signal and a data signal from input signals. The clock and data recovery unit includes a reference clock multiplier circuit that multiplies a reference clock signal and outputs the multiplied reference clock signal; and a frequency training loop that includes the same voltage-controlled oscillator and performs synchronous oscillation training by the voltage-controlled oscillator using the reference clock multiplier circuit before the phase-locked loop transitions from power-saving mode to normal mode.
摘要翻译：在本发明中，由PON系统中的光网络单元中的时钟和数据恢复单元从功率节省状态激活时引起的浪费的功耗减少，并且执行快速，安全的通信。时钟和数据恢复单元包括可以被设置为正常模式或省电模式的锁相环，并且包括压控振荡器并且从输入信号恢复时钟信号和数据信号。时钟和数据恢复单元包括参考时钟倍增器电路，其将参考时钟信号相乘并输出相乘的参考时钟信号; 以及包括相同的压控振荡器的频率训练回路，并且在从锁定环路从功率节省模式转换到正常模式之前，使用参考时钟乘法器电路由压控振荡器执行同步振荡训练。

10. 发明申请

US20140369342A1 NODE AND METHOD FOR COMMUNICATION CONTROL 有权
标题翻译：用于通信控制的节点和方法
公开(公告)号：US20140369342A1
公开(公告)日：2014-12-18
申请号：US14474683
申请日：2014-09-02
申请人： FUJITSU LIMITED
发明人： Taiji Kondo , Takao Ito , Takahiro Koharagi , Satoshi Ikeda , Mitsuaki Yasuoka , Kobun Nakajima , Satoshi Kurosawa , Shigemasa Matsubara , Naoto Miyauchi
IPC分类号： H04W56/00 , H04J3/06
CPC分类号： H04W56/001 , H04J3/0655 , H04W56/0015 , H04W56/002 , H04W56/0035 , H04W84/18
摘要： A node includes a time difference measurement unit and a time setting unit. The time difference measurement unit measures a time difference between a first time based on latest received time information and a second time based on second-latest received time information. The time setting unit calculates an adjustment time difference when the time difference exceeds an allowable range of error that is smaller than an allowable range of maintainable communication, sets a time obtained by adding the adjustment time difference and the second time to the time of the node when the adjustment time difference is within the allowable range of maintainable communication, and sets a time obtained by adding a time difference corresponding to the allowable range of maintainable communication and the second time to the time of the node when the adjustment time difference exceeds the allowable range of maintainable communication.
摘要翻译：节点包括时差测量单元和时间设置单元。该时间差测量单元基于最新的接收时间信息测量第一时间之间的时间差和基于第二时间接收的时间信息的第二时间。时间设定单元计算出当时间差超过容许允许范围的可允许范围时的调整时间差，设定通过将调整时间差与第二时间相加而得到的时间当调整时间差在可维护通信的允许范围内时，并且当调节时间差超过允许的范围时，将与可维护通信的可允许范围相对应的时间差和第二时间设置为节点时间可维护的通信范围。

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