b-1-GHz with 10 MHz FDD, 3.5 GHz with 100 MHz TDD, and 28 GHz with 800 MHz TDD. The corresponding subcarrier spac- ings are 15, 30, and 120 kHz. The downlink modulation is assumed to be 256-QAM for sub-1-GHz and 3.5 GHz cases and 64-QAM for the mmWave case. The uplink modula- tion is assumed to be 64-QAM. Multiple Input Multiple Output (MIMO) capability is assumed to be four streams in the downlink for mid-bands, dual stream in the down- link at low FDD bands and at mmWave, and single stream in the uplink. Each slot is 10 5G Performance Data rate = Bandwidth.Antenna streams. symbol Spectrum Bandwidth Peak rate >50 GHz 5 GHz TDD 2x2/4x4 50/100 Gbps 24-39 GHz 800 MHz TDD 2x2/4x4 8/16 Gbps 2.5-5.0 GHz 100 MHz TDD 2 Gbps <2.7 GHz 20 MHz FDD 0.4 Gbps <1 GHz 10 MHz FDD 0.1 Gbps Figure 10.1 Approximate peak data rates as a function of bandwidth and antennas. Table 10.4 Peak data rate calculations. Sub-1-GHz FDD 2.5-5.0 GHz TDD 24-39 GHz TDD Bandwidth 10 MHz 100 MHz 800 MHz (2 X 400 MHz) Subcarrier spacing 15 kHz 30 kHz 120 kHz Number of PRBs Modulation Downlink 256-QAM Downlink 256-QAM Downlink 64-QAM Uplink 64-QAM Uplink 64-QAM Uplink 64-QAM Downlink 2 X 2 Downlink 4 X 4 Downlink 2 X 2 Uplink no MIMO Uplink no MIMO Uplink no MIMO PDCCH symbols 1 symbol for full 1 symbol using 50% 1 symbol using 50% bandwidth bandwidth bandwidth DMRS symbols Not considered Not considered Not considered TDD radio Downlink 1.0 (FDD) Downlink 0.74 Downlink 0.74 Uplink 1.0 (FDD) Uplink 0.23 Uplink 0.23 Coding rate Peak rate downlink 111 Mbps 1.80 Gbps 5.2 Gbps Peak rate uplink 42 Mbps 0.104 Gbps 0.80 Gbps PRB, Physical Resource Block; MIMO, Multiple Input Multiple Output; PDCCH, Physical Downlink Control Channel; SSB, Synchronization Signal Block. assumed to carry one Physical Downlink Control Channel (PDCCH) symbol and one Demodulation Reference Signal (DMRS) symbol. PDCCH is assumed to use the whole bandwidth for the sub-1-GHz case and 50% of the bandwidth for higher frequencies. Broadcast and synchronization channels are not considered i