pre6GPhysicalChannel

Pre-6G physical channel symbols

Since R2026a

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    Syntax

    sym = pre6GPhysicalChannel(carrier,ch,cw)
    sym = pre6GPhysicalChannel(___,OutputDataType=odt)

    Description

    Add-On Required: This feature requires the 6G Exploration Library for 5G Toolbox add-on.

    sym = pre6GPhysicalChannel(carrier,ch,cw) returns physical channel symbols for 6G research and prototyping. carrier, ch, and cw are the carrier configuration parameters, physical channel configuration parameters, and codeword, respectively.

    example

    sym = pre6GPhysicalChannel(___,OutputDataType=odt) additionally specifies the data type of the output symbols.

    Examples

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    This example uses:

    Open Live Script

    Create a pre-6G carrier configuration object with default parameters. Set a batch size of five. Create an empty resource grid for the configuration and batch size.

    carrier = pre6GCarrierConfig;
B = 5;
grid = pre6GResourceGrid(carrier,1,BatchSize=B);

    Create a reference signal configuration object with default parameters. Get 0-based reference signal indices for the reference signal configuration.

    rs = pre6GReferenceSignalConfig;
rs.SymbolLocations = (0:7)';
rs.TimeDomainCDM = 8;
rsInd = pre6GReferenceSignalIndices(carrier,rs,BatchSize=B);

    Create a data channel configuration object. Use the reference signal indices as reserved resource elements for the physical channel configuration object.

    Get 0-based data indices and resource mapping information for the physical channel configuration.

    ch = pre6GPhysicalChannelConfig(ReservedRE=rsInd-1);
[dataInd,info] = pre6GPhysicalChannelIndices(carrier,ch,BatchSize=B);

    Generate a random codeword for the physical channel. Generate the data and reference signal symbols. Assign the data and reference symbols to the grid.

    cw = randi([0 1],[info.G,B]);
sym = pre6GPhysicalChannel(carrier,ch,cw);
rsSym = pre6GReferenceSignal(carrier,rs,BatchSize=B);
grid(rsInd) = rsSym;
grid(dataInd) = sym;

    Plot the resource element assignments for the first batch element.

    map = zeros(size(grid,1),size(grid,2));
map(dataInd(:,1,1)) = 1;
map(rsInd(:,1,1)+1) = 2;

figure;
image(map+1);
axis xy;
colormap([1 1 1; 0.3 0.3 1; 1 1 0]);
xlabel('OFDM Symbols');
ylabel('Subcarriers');
title('Physical Channel and Reference Signal Resource Elements');

    Figure contains an axes object. The axes object with title Physical Channel and Reference Signal Resource Elements, xlabel OFDM Symbols, ylabel Subcarriers contains an object of type image.

    Input Arguments

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    Carrier configuration parameters for a specific OFDM numerology, specified as a pre6GCarrierConfig object. This function uses only the NCellID property of the pre6GCarrierConfig object.

    Physical channel configuration parameters, specified as a pre6GPhysicalChannelConfig object. This function uses only these pre6GPhysicalChannelConfig object properties:

    Codeword bits, specified as a binary matrix of size G-by-B, where G is the number of coded bits (NRE × NLayers × Qm) and B is the batch size. NRE is the number of resource elements (REs) per layer, NLayers is the number of transmission layers, and Qm is the modulation order.

    Data Types: double | int8 | logical

    Output data type, specified as "single" or "double".

    Data Types: char | string

    Output Arguments

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    Physical channel symbols, returned as a complex matrix.

    Data Types: single | double
    Complex Number Support: Yes

    Extended Capabilities

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    Version History

    Introduced in R2026a

    See Also

    Functions

    Objects