一种下行数据帧的传输方法和设备技术

本发明专利技术的实施例提供一种下行数据帧的传输方法，所述方法用于无源光网络PON系统，包括：OLT设备生成下行数据帧，所述下行数据帧包括帧头和净荷，所述帧头包括物理同步序列Psync字段，所述Psync字段用于识别所述下行数据帧，其中，在所述Psync字段的值为第一值时，所述Psync字段还用于指示净荷数据受到前向纠错FEC的保护，在所述Psync字段的值为第二值时，所述Psync字段还用于指示所述净荷数据不受FEC的保护；所述OLT设备将所述下行数据帧发送出去。本发明专利技术实施例可以降低FEC指示状态的误码率，提高FEC指示状态的可靠性。

A Downlink Data Frame Transmission Method and Equipment

An embodiment of the present invention provides a downlink data frame transmission method for a passive optical network PON system, which includes: OLT device generates downlink data frames, the downlink data frames include frame headers and payloads, the frame headers include physical synchronization sequence Psync fields, and the Psync fields are used to identify the downlink data frames, in which the value of the Psync fields is the first value. When the Psync field is used to indicate that the payload data is protected by forward error correction FEC, and when the value of the Psync field is the second value, the Psync field is also used to indicate that the payload data is not protected by FEC; the OLT device transmits the downlink data frame. The embodiment of the invention can reduce the bit error rate of the FEC indicating state and improve the reliability of the FEC indicating state.

【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。

【技术保护点】
PCT国内申请，权利要求书已公开。

【技术特征摘要】
【国外来华专利技术】PCT国内申请，...

【专利技术属性】
技术研发人员：高波，聂世玮，景磊，王振平，
申请(专利权)人：华为技术有限公司，
类型：发明
国别省市：广东,44