8100 LTE RA v4.80/CS8 IT v1.80
TB Size(transport block size) defines how many bits MAC layer transfers to Physical layer per TTI (Transmission Time Interval, defined as 1ms). Note: TM1/TM2 can carry 1 TB Size per TTI, TM3/TM4 can carry 2 TB Size per TTI (two code word).
Theoretically speaking, data throughput is TB Size/TTI(1ms) for TM1/TM2, 2*TB Size/TTI for TM3/TM4. To get maximum rate, we need choose maximum TB Size. TB Size is affected by bandwidth, modulation and allocated RB, and we can figure out maximum TB Size on CS8 IT GUI.
e.g. we want to figure out the maximum data throughput for 5MHz bandwidth.
15MHz and 20MHz bandwidth throughput is not verified on CS8 IT v1.80. They will be officially supported from next commercial CS8 IT release (v2.0 or higher).