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    • 2. 发明授权
    • Method and apparatus for synchronization in a passive optical network
    • 无源光网络同步的方法和装置
    • US08270832B2
    • 2012-09-18
    • US13335593
    • 2011-12-22
    • Yuanqiu LuoFrank Effenberger
    • Yuanqiu LuoFrank Effenberger
    • H04J14/00
    • H04J3/0605H04J3/0655H04Q11/0067
    • A method, apparatus and system for aligning frames in which an Optical Network Unit (ONU) receives a frame comprising frame delimitation information and synchronization-related information; performs a first verification based on a comparison of the frame delimitation information and a fixed pattern; performs a second verification based on a comparison of the synchronization-related information and a value associated with synchronization-related information in a previously received frame; proceeds to a synchronization state if both the first verification and the second verification are successful; and returns to a hunt state if either the first verification or the second verification fails.
    • 一种用于对准帧的方法,装置和系统,其中光网络单元(ONU)接收包括帧定界信息和同步相关信息的帧; 基于帧定界信息和固定模式的比较来执行第一验证; 基于先前接收到的帧中的同步相关信息和与同步相关信息相关联的值的比较来执行第二验证; 如果第一验证和第二验证都成功,则进入同步状态; 如果第一次验证或第二次验证失败,则返回到寻线状态。
    • 5. 发明授权
    • Method and apparatus for line coding
    • 线编码的方法和装置
    • US08432302B2
    • 2013-04-30
    • US12981739
    • 2010-12-30
    • Dongning FengWeiguang LiangDongyu GengJing LiFrank EffenbergerSergio BenedettoGuido Montorsi
    • Dongning FengWeiguang LiangDongyu GengJing LiFrank EffenbergerSergio BenedettoGuido Montorsi
    • H03M5/00
    • H03M5/145
    • The present invention provides a convolutional line coding method, including: constructing a sequence set, where the length of each sequence in the sequence set is n bits; selecting a balanced sequence in the sequence set, and obtaining source data of n−1 bits corresponding to the balanced sequence; performing Hamming distance detection for an unbalanced sequence in the sequence set to obtain source data of n−1 bits corresponding to the unbalanced sequence; sorting the balanced sequence and the unbalanced sequence according to an operation difference value, and generating a code table, where the source data of n−1 bits correspond to the sequence of n bits, and the code table is designed for line coding; and at time of encoding the source data of n−1 bits, obtaining a coding result of n bits according to a mapping relation in the code table.
    • 本发明提供一种卷积行编码方法,包括:构建序列集中的每个序列的长度为n位的序列集; 选择序列集中的平衡序列,获得对应于平衡序列的n-1个比特的源数据; 对所述序列集中的不平衡序列进行汉明距离检测,以获得与所述不平衡序列相对应的n-1个比特的源数据; 根据操作差值对平衡序列和不平衡序列进行排序,并生成代码表,其中n-1位的源数据对应于n位的序列,并且代码表被设计用于线路编码; 并且在对n-1位的源数据进行编码时,根据代码表中的映射关系获得n位的编码结果。
    • 8. 发明申请
    • BURST TRANSMISSION METHOD, AND RECEIVER RESETTING METHOD AND APPARATUS IN A PASSIVE OPTICAL NETWORK
    • BURST传输方法和接收器复位方法和被动光网络中的设备
    • US20110311235A1
    • 2011-12-22
    • US13210848
    • 2011-08-16
    • Jing LiDongning FengDongyu GengFrank Effenberger
    • Jing LiDongning FengDongyu GengFrank Effenberger
    • H04B10/06H04B10/04
    • H04B10/60H04J3/0608H04J3/1694H04J2203/0067H04Q11/0066H04Q11/0067
    • A burst transmission method and a receiver resetting method and apparatus in a Passive Optical Network (PON) are provided. A burst receiver resetting method in a PON includes: receiving a preamble sequence and synchronizing data; after synchronizing the data, continuing to receive the data, and matching a Burst Terminator (BT); and resetting a receiver after successfully matching the BT. Meanwhile, an apparatus for implementing the method and a corresponding burst data transmission method are provided. By using the burst receiver resetting method and apparatus in the PON and the corresponding burst transmission method at an Optical Network Unit (ONU) burst transmission end, a Reach Extender (RE) does not need to unpack upstream burst bandwidth allocation information carried in downstream data. Therefore, the complexity of the implementation of the RE is reduced, and the method is simple and effective.
    • 提供了一种无源光网络(PON)中的突发传输方法和接收机复位方法和装置。 PON中的突发接收机复位方法包括:接收前同步码序列和同步数据; 在同步数据之后,继续接收数据,并匹配突发终结器(BT); 并在成功匹配BT后重置接收机。 同时,提供了一种用于实现该方法和相应突发数据传输方法的装置。 通过在光网络单元(ONU)突发传输端使用PON中的突发接收机重置方法和装置以及对应的突发传输方法,接入扩展器(RE)不需要解压缩在下行数据中携带的上行突发带宽分配信息 。 因此,实施RE的复杂性降低,方法简单有效。