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发明公开
CN108112017A 一种增强NB-IoT覆盖范围的上行链路算法、存储介质 无效 - 驳回

一种增强NB-IoT覆盖范围的上行链路算法、存储介质
摘要：
本发明提供一种增强NB‑IoT覆盖范围的上行链路算法，包括针对内环的链路适配和针对外环的链路适配；内环链路适配包括：在传输周期T内，将所有传输的ACK和NACK均作为差错块计算BLER，如果BLER大于设定的低阈值，则在该传输周期T结束时，对信息重传次数增加设定增加量；如果BLER小于设定的高阈值，则在该传输周期T结束时，对信息重传次数减少设定减少量；外环链路适配包括：设定传输过程中的快速升级事件和紧急降级事件，传输过程中，当快速升级事件被触发时，当前MCS的级别增加设定的MCS增加量；当紧急降级事件被触发时，当前MCS的级别减少设定的MCS减少量。与现有重传的方法相比，平均可节省14.29％的活跃时间和14.01％的资源消耗。
摘要（英）：

The invention provides an uplink algorithm capable of widening the NB-IoT coverage range. The uplink algorithm comprises the steps of inner ring link adaption, wherein in a transmission period T, alltransmitted ACKs and NACKs are taken as error blocks to calculate the BLER, if the BLER is higher than a set low threshold, the information retransmission number is increased by the set increment whenthe transmission period T ends, and if the BLER is lower than a set high threshold, the information retransmission number is decreased by the set decrement when the transmission period T ends; and outer ring link adaption, wherein a quick level rising event and an emergency level dropping event in the transmission process are set, and in the transmission process, the level of a current MCS is increased by the set MCS increment when the quick level rising event is triggered, and the level of the current MCS is decreased by the set MCS decrement when the emergency level dropping event is triggered. Compared with an existing retransmission method, 14.29% of active time and 14.01% of resource consumption can be saved in average.

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