NB-IOT里的NDSCH,NPUSCH是什么意思？
时间：09-04
整理：3721RD
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关于NB-IOT的，里面看到NDSCH, NPUSCH, TBS不知道是什么意思，网上查了下没有能对上的。
刚开始接触，可能是常识，原文前面也没有解释。
原文如下
NDSCH peak data rate can be achieved by using the largest TBS of 680 bits and transmitting it over 3 ms [10]. This gives 226.7 kb/s peak layer 1 data rate. NPUSCH peak data rate can be achieved by using the largest TBS of 1000 bits and transmit- ting it over 4 ms [10]. This gives 250 kb/s peak layer 1 data rate. However, the peak throughputs of both downlink and uplink are lower than the above figures when the time offsets between DCI, NPDSCH/NPUSCH, and HARQ acknowledg- ment are taken into account.
刚开始接触，可能是常识，原文前面也没有解释。
原文如下
NDSCH peak data rate can be achieved by using the largest TBS of 680 bits and transmitting it over 3 ms [10]. This gives 226.7 kb/s peak layer 1 data rate. NPUSCH peak data rate can be achieved by using the largest TBS of 1000 bits and transmit- ting it over 4 ms [10]. This gives 250 kb/s peak layer 1 data rate. However, the peak throughputs of both downlink and uplink are lower than the above figures when the time offsets between DCI, NPDSCH/NPUSCH, and HARQ acknowledg- ment are taken into account.
参考LTE的定义。NDSCH ——NB Downlink Shared Channel ——窄带下行链路共享信道
NPUSCH——NB Physical Uplink Shared Channel —— 再带物理层上行两路共享信道
TBS —— transport block size —— 传输块大小