一种5G上行覆盖增强的方法

An Enhancement Method for 5G Uplink Coverage

为了高效地利用5G多时隙重复发送特性来提升上行小包数据传输的覆盖性能,提出了一种无线基站根据上行无线传输环境以及上行无线信号质量等信息自动调整时隙重复次数的方法。基站先根据无线传输环境确定上行数据解调门限,并基于该解调门限的动态区间建立上行覆盖质量等级与时隙重复次数的映射关系表;再根据终端是否移动、终端所处无线连接状态、上行数据传输时的BLER以及终端报告的PHR信息等,自适应地调整上行覆盖质量等级即自动调整上行时隙重复次数,从而合理使用资源以实现小包数据传输时的上行覆盖性能提升。

In order to improve the coverage performance of uplink small packet data transmission by efficiently utilizing 5G multislot retransmission characteristics,a method of automatically adjusting the number of slot repetitions is proposed for wireless base station(BS)according to uplink wireless transmission environments and uplink wireless signal quality.Firstly,a BS determines the uplink data demodulation threshold according to the wireless transmission environments and establishes the mapping relationship between the uplink coverage quality level and the number of slot repetitions based on the dynamic interval of the demodulation threshold.Then,the uplink coverage quality level is adaptively adjusted according to whether the terminal is mobile,the wireless connection state of the terminal,the BLER during uplink data transmission and the PHR information reported by the terminal.It means that the number of uplink slot repetitions is automatically adjusted and thus the resources are used rationally to improve the uplink coverage performance during small packet data transmission.