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    • 1. 发明授权
    • Methods and arrangements in optical network
    • 光网络中的方法和布置
    • US08861964B2
    • 2014-10-14
    • US13583971
    • 2010-03-29
    • Ling ChenShuyou Dong
    • Ling ChenShuyou Dong
    • H04B17/00H04J14/00H04J3/06H04Q11/00
    • H04Q11/0067G06F1/14H04J3/0655H04Q2011/0079
    • Methods and arrangements for time distribution in an optical network system in the upstream direction. The information of a selected time reference frame and a calculated time stamp value of the frame based on a real-time clock of the optical line terminal (OLT) is sent from the OLT to the optical network unit (ONU) via the optical distribution network (ODN). When the time reference frame is sent to the ONU from the OLT via the ODN, the ONU records the arrival time of the frame based on a time reference made by the real-time clock of the ONU. The time difference between the arrival time and the time stamp value is calculated whereupon the OLT is informed of the calculated time difference. The OLT adjusts the real-time clock of the OLT in accordance with the time difference.
    • 光网络系统在上游方向的时间分布方法和布置。 基于光线路终端(OLT)的实时时钟的所选择的时间参考帧和所计算的时间戳值的信息经由光分配网络从OLT发送到光网络单元(ONU) (ODN)。 当通过ODN将时间参考帧从OLT发送到ONU时,ONU基于由ONU的实时时钟作出的时间参考记录帧的到达时间。 计算到达时间和时间戳值之间的时间差,然后通知OLT计算出的时间差。 OLT根据时差调整OLT的实时时钟。
    • 2. 发明申请
    • METHODS AND ARRANGEMENTS IN OPTICAL NETWORK
    • 光网络中的方法和布置
    • US20130004160A1
    • 2013-01-03
    • US13583971
    • 2010-03-29
    • Ling ChenShuyou Dong
    • Ling ChenShuyou Dong
    • H04B10/08
    • H04Q11/0067G06F1/14H04J3/0655H04Q2011/0079
    • Methods and arrangements for time distribution in an optical network system in the upstream direction. The information of a selected time reference frame and a calculated time stamp value of the frame based on a real-time clock of the optical line terminal (OLT) is sent from the OLT to the optical network unit (ONU) via the optical distribution network (ODN). When the time reference frame is sent to the ONU from the OLT via the ODN, the ONU records the arrival time of the frame based on a time reference made by the real-time clock of the ONU. The time difference between the arrival time and the time stamp value is calculated whereupon the OLT is informed of the calculated time difference. The OLT adjusts the real-time clock of the OLT in accordance with the time difference.
    • 光网络系统在上游方向的时间分布方法和布置。 基于光线路终端(OLT)的实时时钟的所选择的时间参考帧和所计算的时间戳值的信息经由光分配网络从OLT发送到光网络单元(ONU) (ODN)。 当通过ODN将时间参考帧从OLT发送到ONU时,ONU基于由ONU的实时时钟作出的时间参考记录帧的到达时间。 计算到达时间和时间戳值之间的时间差,然后通知OLT计算出的时间差。 OLT根据时差调整OLT的实时时钟。
    • 4. 发明申请
    • DEVICES AND METHODS FOR FLOW CONTROL OF MESSAGES IN A PASSIVE OPTICAL NETWORK (PON) AND METHODS THEREIN
    • 无源光网络(PON)中的信息流控制的装置和方法及其方法
    • US20150188750A1
    • 2015-07-02
    • US14409354
    • 2012-06-20
    • Ling ChenLaith Said
    • Ling ChenLaith Said
    • H04L12/24H04B10/27
    • H04B10/07H04B10/272H04B2210/071H04L41/06H04L41/0604H04L43/16H04L47/266H04Q11/0067H04Q2011/0088
    • A method in an Optical Line Terminal (OLT) device for transmitting a flow control message to an Optical Network Unit/Terminal (ONU/T) device in a Passive Optical Network (PON) access network is provided. The OLT device is configured to receive alarm and/or Attribute Value Change (AVC) messages from the ONU/T device. The OLT device is also configured to temporarily store the alarm and/or AVC messages in a message queue. The OLT device generates a flow control message indicating that the ONU/T device is to stop transmitting alarm and/or AVC messages to the OLT device, when the number of alarm and/or AVC messages in the message queue exceeds a first threshold. Then, the OLT device transmits the flow control message to the ONU/T device(s). An OLT device for transmitting a flow control message to an ONU/T device, and an ONU/T device and related method for receiving a flow control message are also provided.
    • 提供了一种用于向无源光网络(PON)接入网络中的光网络单元/终端(ONU / T)设备发送流量控制消息的光线路终端(OLT)装置中的方法。 OLT设备被配置为从ONU / T设备接收报警和/或属性值改变(AVC)消息。 OLT设备还被配置为将报警和/或AVC消息临时存储在消息队列中。 当消息队列中的报警和/或AVC消息的数量超过第一阈值时,OLT设备生成指示ONU / T设备停止向OLT设备发送报警和/或AVC消息的流控制消息。 然后,OLT装置向ONU / T装置发送流量控制消息。 还提供了用于向ONU / T设备发送流控制消息的OLT设备,以及用于接收流控制消息的ONU / T设备及相关方法。
    • 8. 发明授权
    • Method and system for scanning in WLAN
    • 在WLAN中扫描的方法和系统
    • US08503390B2
    • 2013-08-06
    • US12442312
    • 2007-09-19
    • Ling Chen
    • Ling Chen
    • H04L12/56
    • H04W24/00H04W8/26H04W36/06H04W48/08H04W84/12H04W88/08
    • The embodiments disclose a method for scanning in a radio communication system, in particular in a WLAN (Wireless Local Area Network), including transmitting by a MS on all channels a probe message containing the IP address of the original AP of the MS and an MAC address of the MS; switching to the original channel; transmitting a response inquiry message to the original AP; and receiving a probe response message within a predetermined period, wherein, if the AP of the probe message received on the channel is not the original AP, then the AP transmits the probe response message containing the MAC address to the original AP according to the IP address; and the original AP buffers the probe response message received, and transmits the probe response message to the MS according to the MAC address after the response inquiry message sent by the MS has been received. The embodiments further disclose a scanning system in a WLAN. By using the method and system, not only the time delay during the scanning is reduced, but also the network security is improved and the difficulty for realization is decreased.
    • 实施方式公开了一种用于在无线电通信系统中扫描的方法,特别是在无线局域网(Wireless Local Area Network,无线局域网))中,包括由MS在所有信道上发送包含MS的原始AP的IP地址的探测消息和MAC MS地址; 切换到原来的频道; 向原始AP发送响应查询消息; 并且在预定时段内接收探测响应消息,其中如果在所述信​​道上接收到的所述探测消息的所述AP不是所述原始AP,则所述AP根据所述IP向所述原始AP发送包含所述MAC地址的所述探测响应消息 地址; 并且原始AP缓冲所接收到的探测响应消息,并且在已经接收到MS发送的响应查询消息之后,根据MAC地址向MS发送探测响应消息。 实施例进一步公开了WLAN中的扫描系统。 通过使用该方法和系统,不仅可以减少扫描时间延迟,而且可以提高网络安全性,降低实现难度。