Transport Block Size in lte

The Modulation Coding Scheme (MCS) index is an existing industry metric based on several parameters of a Wi-Fi connection between a client device and a wireless access point, including data rate, channel width, and the number of antennas or spatial streams in the device.

In a nutshell, an MCS table is a lookup that can be used to find which data rate will be negotiated between two stations once all the connection parameters are known . For each possible combination of modulation, coding rate, number of spatial streams, channel width, and guard interval, there is a unique MCS index.16 Eyl 2020

CQI (Channel Quality Indication) – Instead of expressing the CQI as a received signal quality, the CQI expressed as a data rate that terminal (UE) can support under the actual radio conditions. SINR is used for calculating CQI. In LTE, CQI has only 15 codes. MCS parameter is assigned based on the CQI value .

MCS stands for Modulation and Coding Scheme and TBS stands for Transport Block Size. Introduction: 5G NR (New radio) is latest cellular wireless technology which follows 3GPP specifications similar to LTE. The entire protocol stack for UE and gNB (i.e. Base Station) is specified in 38 series of documents.