PUSCH 5G

MCS (Modulation and Coding Scheme ) defines how many useful bits can be transmitted per Resource Element (RE). MCS depends on radio link quality. The better quality the higher MCS and the more useful data can be transmitted.

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.

Phase shift keying: 5G technology implements quadrature phase shift keying, QPSK as the lowest order modulation format . Although this will provide the slowest data throughput it will also provide the most robust link and as such it can be used when signal levels are low or when interference is high.

For example, for 2 spatial streams, and an 80 MHz channel, to get an MCS of 5 you need at least 24 dBM of SNR or -60 RSSI .16 Eyl 2020