SSBurst.SSBurstTansmitted bitmap (5G Toolbox)

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Jean-Aicard Fabien 2020-2-3

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https://ww2.mathworks.cn/matlabcentral/answers/503449-ssburst-ssbursttansmitted-bitmap-5g-toolbox

评论： Youssef Rawy 2021-2-11

In your example for nrPDSCH performance, the bitmap is 4 bits. For 3 to 6GHz where L is 8 bit, should I set it to 8 bits 1(on) 0 (off). For above 6GHz, L should be 64 bits, how is the tructure handle is it 64 bits i.e. [1 1 1xxxx......] or is it two structure of 8 bits each as in the RRC specification one for group and one within each group?

Thanks, Jean-Aicard

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Answer 1

Smruti Prava Panda 2020-2-12

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https://ww2.mathworks.cn/matlabcentral/answers/503449-ssburst-ssbursttansmitted-bitmap-5g-toolbox#answer_415126

In NRPDSCH Throughput (nrPDSCH performance) example while changing the value for SSBTransmitted bits,you need to change BlockPattern too.

'Case A' 'Case B' 'Case C' are supported when L is ‘4’ or ‘8’ bits

'Case D' 'Case E' are supported when L is ‘64’ bits

I think you can try for 3 to 6 GHZ where L is 8 bits you can set SSBTransmitted to 8 bits and for above 6GHZ L is 64 bits, you can set SSBTransmitted to 64 bits i.e.[ 1 1 1xxxx] and can change the BlockPattern too.

For Further details refer to NR PDSCH Throughput Example

https://www.mathworks.com/help/5g/examples/nr-pdsch-throughput.html

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Youssef Rawy 2021-2-11

Yes, this is indeed correct according to 3GPP. But, I have a question here. As you are working on F1 Range below 6 GHz, how would you know that L is 4 or 8 for case A, B and C for this example for PDSCH Throughput. For this example is set as L is 4 bits with 51 Resource Block and SCS 30kHz, so this set 20 MHz from 3GPP F1 Range Table. The question is how do you know the carrier frequecy in that case. I see that it is below 3 GHz, so you used L is 4 bits. How do you know that is below 3 GHz?

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