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    • 3. 发明授权
    • Method and device for sending upstream transfer frame in passive optical network
    • 在无源光网络中发送上行传输帧的方法和装置
    • US08259734B2
    • 2012-09-04
    • US13219075
    • 2011-08-26
    • Dongning FengDongyu GengJing LiWai Kong Raymond LeungFrank Effenberger
    • Dongning FengDongyu GengJing LiWai Kong Raymond LeungFrank Effenberger
    • H04L12/28
    • H04B10/27H04L7/041H04L7/046H04Q11/0067
    • The present invention relates to the Passive Optical Network (PON) technology, and a method for sending an upstream transfer frame in a PON is provided, so as to improve flexibility of a system and satisfy a requirement that an error probability is reduced as low as possible. The method includes: after success of link, sending a preamble according to an allocated time slot, sending a burst synchronization delimiter, and then sending successively a burst header, a Gigabit-Capable Passive Optical Network (GPON) Transmission Convergence (GTC) frame header, and GTC frame data. In the sent synchronization delimiter, the number of non-zeros is the same as the number of zeros, and in a delimiter sequence, the number of non-zeros on odd bits is equal to the number of zeros on even bits, and the number of non-zeros on even bits is equal to the number of zeros on odd bits, the number of zeros on the odd bits is N, the number of non-zeros on the odd bits is M, a relation |N−M|≦1 is satisfied, the number of zeros in a continuous zero group is X, the number of non-zeros in a continuous nonzero group is Y, and a relation |X−Y|≦1 is satisfied. A device for sending an upstream transfer frame in a passive optical network is further provided.
    • 本发明涉及无源光网络(PON)技术,并且提供了一种在PON中发送上行传输帧的方法,以提高系统的灵活性,并满足将误差概率降低到低至 可能。 该方法包括:在链路成功之后,根据分配的时隙发送前导码,发送突发同步定界符,然后连续发送突发报头,千兆位能力无源光网络(GPON)传输收敛(GTC)帧报头 ,和GTC帧数据。 在发送的同步分隔符中,非零的数量与零的数目相同,并且在分隔符序列中,奇数位上的非零数等于偶数位上的零数, 偶数位上的非零的数量等于奇数位上的零数,奇数位上的零数为N,奇数位上的非零数为M,关系| N-M |&nlE ; 1满足,连续零组中的零数为X,连续非零组中的非零数为Y,满足关系| X-Y |≦̸ 1。 还提供了一种用于在无源光网络中发送上游传送帧的设备。