Among the three options described in the introduction, this Recommendation limits the scope to the employed technologies to improve spectral efficiency for downstream and upstream over hybrid fibre/coax (HFC)-based networks. The requirements stated herein are intended to be technology neutral. Furthermore, this Recommendation defines the requirements for advanced digital cable transmission technologies on the physical layer, which includes modulation, channel coding, transmission schemes and frame structure for providing higher spectral efficiency.
ITU-T J.381-2012由国际电信联盟 IX-ITU 发布于 2012-09-01。
ITU-T J.381-2012 在中国标准分类中归属于: M42 通信线路设备。
* 在 ITU-T J.381-2012 发布之后有更新,请注意新发布标准的变化。
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