一种5G NR大动态范围基带信号回传方法

A Large Dynamic Range Front Haul Interface on 5G NR Base Station

5G系统中,由于带宽的增加,调度更加灵活,以及更高的频谱利用效率,都决定了空口中信号的动态范围也有较大提高。对此,提出一种基于数字自动增益控制(Digital Automatic Gain Control,DAGC)大动态范围的上行数据处理方法,瞬时功率动态范围达到135 dB。即使在压缩后,瞬时动态范围也有117 dB,从而保证基站可以更健壮、更高效地服务各种近、中、远点用户。

In the 5G system,due to the increase of bandwidth,more flexible scheduling,and higher spectral efficiency,the dynamic range of signals in the air port has also been greatly improved.Therefore,this paper proposes an uplink data processing method based on Digital Automatic Gain Control(DAGC)with a large dynamic range.The dynamic range of instantaneous power reaches 135dB.Even after compression,the instantaneous dynamic range is 117 dB,which ensures that the base station can more robustly and efficiently serve various near,medium,and far users.