An embodiment of the present invention discloses a method, apparatus and system for modulation format switching over a passive optical network, wherein the method comprises: OLT supports all uplink modulation formats and/or downlink modulation formats to send registered messages to the optical network unit, respectively; OLT receives the first message reported by the optical network unit, the first message comprising Uplink modulation format capability and/or downlink modulation format capability; OLT determines the target uplink modulation format and/or target downlink modulation format of the optical network unit based on the first message, notifying the optical network unit to switch to the target uplink modulation format and/or target downlink modulation format. This makes it possible to support PON systems with multiple modulation formats, increase the reporting ability of ONU's modulation formats, and realize the switching of modulation modes after ONU registration and registration.
【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:李胜平,叶志成,吴徐明,
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
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