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LTE - Create Synchronization Signals

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In this example,  the primary and secondary synchronization signals are created and mapped to a resource grid.

Set up the cell-wide settings. Create a structure and specify the cell-wide settings as its fields.

enb.NDLRB = 9;
enb.CyclicPrefix = ‘Normal‘;
enb.CellRefP = 1;
enb.NCellID = 1;
enb.NSubframe = 0;
enb.DuplexMode = ‘FDD‘;

Generate the PSS symbols n with the cell-wide settings specified.

pss = ltePSS(enb);

Next, generate the PSS indices. These indices map the PSS complex symbols to the subframe resource grid. Using the specified cell-wide settings and antenna number. In this case, since only one antenna port is used, specify antenna as 0.

antenna = 0;
pssIndices = ltePSSIndices(enb, antenna);

Generate the SSS symbols with the cell-wide settings specified.

sss = lteSSS(enb);

Next, generate the SSS indices. These indices map the SSS complex symbols to the subframe resource grid. Providing the cell-wide settings enb and the antenna port number antenna.

antenna = 0;
sssIndices = lteSSSIndices(enb, antenna);

Generate the subframe resource grid .  An empty resource grid for one subframe is created.

subframe = lteDLResourceGrid(enb);

Finally, map the PSS and SSS symbols directly to the resource grid using the generated indices. Show the synchronization symbols mapped in RE grid.

subframe(pssIndices) = pss;
subframe(sssIndices) = sss;
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Reference,

　　1. TS 36.211

　　2. MathWorks

原文：https://www.cnblogs.com/zzyzz/p/13246595.html

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