NR-U与其他非授权频谱共存的下行信道填充方法

DL Channel Padding Method for Coexistence in NR-U and Other Unlicensed Spectrum

针对当5G非授权频谱与其他非授权频谱共存时,现有下行信道频域分配方法可能遇到的占有信道带宽(Occupied Channel Bandwidth,OCB)问题,提出了一种基于隔行填充伪数据的下行物理信道频域资源分配方法,并将分配颗粒度下调至物理资源块(Physical Resource Block,PRB)级别,满足了OCB规范要求,有助于非授权频谱共存,同时明显地降低了能耗,达到了节能的目的。最后,通过举例5 GHz非授权频段的计算数据分析,验证了所提方法的有效性。

To address the problem of OCB(Occupied Channel Bandwidth)that may be encountered by the existing downlink channel frequency domain allocation methods when 5G unlicensed spectrum coexists with other unlicensed spectrum,a downlink physical channel frequency domain resource allocation method based on interlaced padding pseudo-data is proposed,and the allocation granularity is lowered to PRB(Physical Resource Block)level to meet the requirements of OCB(Occupied Channel Bandwidth)specification,which contributes to the coexistence of unlicensed spectrum,and at the same time significantly reduces the energy consumption for energy saving purpose.Finally,the effectiveness of the method is verified by analyzing the calculation data in the unlicensed frequency band of 5GHz as an example.