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ChenCao2016 / 5GNR_slot_detection

Let's see how fast and accurate we could detect 5G NR slot boundary
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12RB waveform frequency estimation is inaccurate #1

Open ChenCao2016 opened 4 years ago

ChenCao2016 commented 4 years ago

symbol 0 data EVM: 4.5460775414204635% symbol 1 data EVM: 3.5868168312898754% symbol 2 data EVM: 1.9538764695602073% symbol 3 data EVM: 0.19057517606488736% symbol 4 data EVM: 1.727200892141332% symbol 5 data EVM: 2.9323939803059638% symbol 6 data EVM: 4.494065448554236% symbol 7 data EVM: 4.8343168365048745% symbol 8 data EVM: 5.357635390772133% symbol 9 data EVM: 5.252260692667249% symbol 10 data EVM: 5.979180886906116% symbol 11 data EVM: 4.034757894496924% symbol 12 data EVM: 3.915473999143628% symbol 13 data EVM: 3.710913390806086%

ChenCao2016 commented 4 years ago

Because the signal is sparse, the frequency estimation using only CP is not accurate. (unless you have very long capture) Explore using data symbol in frequency domain to further estimate frequency error.