ltePUCCH1DRSIndices
PUCCH format 1 DRS resource element indices
Syntax
Description
Examples
Generate PUCCH Format 1 DM-RS Indices
Generate PUCCH format 1 DM-RS RE indices for a 1.4 MHz bandwidth and PUCCH resource index 0. Use default values for all other parameters.
Initialize UE-specific and channel configuration structures. Generate PUCCH format 1 DM-RS indices.
ue.NULRB = 6;
ue.CyclicPrefixUL = 'Normal';
chs.ResourceIdx = 0;
chs.DeltaShift = 1;
chs.CyclicShifts = 0;
chs.ResourceSize = 0;
ind = ltePUCCH1DRSIndices(ue,chs);
ind(1:4)
ans = 4x1 uint32 column vector
145
146
147
148
Generate PUCCH Format 1 DM-RS Indices for Two Antennas
Generate the PUCCH format 1 DM-RS indices for two transmit antenna paths.
Initialize UE-specific and channel configuration structures. Generate PUCCH1 DRS indices and information outputs.
ue.NULRB = 6;
ue.CyclicPrefixUL = 'Normal';
chs.ResourceIdx = [0 4];
chs.ResourceSize = 0;
chs.DeltaShift = 1;
chs.CyclicShifts = 0;
[ind,info] = ltePUCCH1DRSIndices(ue,chs);
Because there are two antennas, the DM-RS indices are output as a two-column vector, and the info
output structure contains two elements. View ind
and the size of info
to confirm this.
ind(1:6,:)
ans = 6x2 uint32 matrix
145 1153
146 1154
147 1155
148 1156
149 1157
150 1158
size(info)
ans = 1×2
1 2
View the contents of the two info
structure elements.
info(1)
ans = struct with fields:
PRBSet: [0 5]
RBIdx: 0
info(2)
ans = struct with fields:
PRBSet: [0 5]
RBIdx: 0
Generate PUCCH Format 1 DM-RS Indices for Two Antennas Varying Indexing Style
Generate the PUCCH format 1 DM-RS indices for two transmit antenna paths, and output in subscript indexing form.
Initialize UE-specific and channel configuration structures, and the indexing option parameter. Generate PUCCH1 DM-RS indices and information outputs.
ue.NULRB = 6; ue.CyclicPrefixUL = 'Normal'; chs.ResourceIdx = [0 4]; chs.ResourceSize = 0; chs.DeltaShift = 1; chs.CyclicShifts = 0; opts = {'sub'}; [ind,info] = ltePUCCH1DRSIndices(ue,chs,opts);
Using 'sub' indexing style, the indices are output in [subcarrier, symbol, antenna] subscript form. View the midpoint of ind and observe the antenna index change.
size(ind)
ans = 1×2
144 3
ind(70:74,:)
ans = 5x3 uint32 matrix
70 12 1
71 12 1
72 12 1
1 3 2
2 3 2
size(info)
ans = 1×2
1 2
Because there are two antennas, the info output structure contains two elements. View one of the info
structure elements.
info(1)
ans = struct with fields:
PRBSet: [0 5]
RBIdx: 0
Input Arguments
ue
— UE-specific settings
structure
UE-specific settings, specified as a structure containing these fields.
NULRB
— Number of uplink resource blocks
integer from 6 to 110
Number of uplink resource blocks, specified as an integer from 6 to 110.
Data Types: double
CyclicPrefixUL
— Cyclic prefix length for uplink channels
'Normal'
(default) | 'Extended'
| optional
Cyclic prefix length for uplink channels, specified as 'Normal'
or 'Extended'
.
Data Types: char
| string
chs
— Channel transmission configuration
structure
Channel transmission configuration, specified as a structure containing these fields.
ResourceIdx
— PUCCH resource indices
0 (default) | 0,...,2047 | integer | vector of integers | optional
PUCCH resource indices, specified as an integer or a vector of integers. Values range from 0 to 2047. These indices determine the physical resource blocks, cyclic shift and orthogonal cover used for transmission. (). Define one index for each transmission antenna.
Data Types: double
ResourceSize
— Size of resources allocated to PUCCH format 2
0 (default) | 0,...,98 | integer | optional
Size of resources allocated to PUCCH format 2, specified as an integer from 0 to 98. This parameter affects the location of this transmission. ()
Data Types: double
DeltaShift
— Delta shift
1 (default) | 2 | 3 | optional
Delta shift, specified as 1, 2, or 3. (Δshift)
Data Types: double
CyclicShifts
— Number of cyclic shifts used for format 1
0 (default) | optional | 0,...,7 | integer
Number of cyclic shifts used for format 1 in resource blocks (RBs) with a mixture of format 1 and format 2 PUCCH, specified as an integer from 0 to 7. ()
Data Types: double
Data Types: struct
opts
— Output format options for resource element indices
character vector | cell array of character vectors | string array
Output format options for resource element indices, specified as a character vector, cell
array of character vectors, or string array. For convenience, you can
specify several options as a single character vector or string scalar by a
space-separated list of values placed inside the quotes. Values for
opts
when specified as a character vector include
(use double quotes for string) :
Category | Options | Description |
---|---|---|
Indexing style |
| The returned indices are in linear index style. |
| The returned indices are in | |
Index base |
| The returned indices are one-based. |
| The returned indices are zero-based. |
Example: 'ind 1based'
, "ind 1based"
,
{'ind','1based'}
, or ["ind","1based"]
specify
the same formatting options.
Data Types: char
| string
| cell
Output Arguments
ind
— Resource element indices
integer column vector | three-column integer matrix
Resource element indices, returned as an integer column vector
or a three-column integer matrix. By default the indices are returned
in one-based linear indexing form that can directly index elements
of a resource matrix. These indices are ordered according to PUCCH
format 1 DRS modulation symbol mapping. The opts
input
offers alternative indexing formats. The indices for each antenna
are in the columns of ind
, with the number of
columns determined by the number of PUCCH resource indices specified
in chs
.
ResourceIdx
.
Example: [145,146,147,...]
Data Types: uint32
info
— PUCCH format 1 DRS information
structure array
PUCCH format 1 DRS information, returned as a structure array with elements corresponding to each transmit antenna and containing these fields.
PRBSet
— Indices occupied by PRB in each slot of subframe
nonnegative integer vector
Indices occupied by PRB in each slot of the subframe, returned as a nonnegative integer vector. The indices are zero-based.
Example: [0,5]
Data Types: double
RBIdx
— PUCCH logical resource block index
nonnegative integer
PUCCH logical resource block index, returned as a nonnegative integer. (m)
Data Types: double
Data Types: struct
Version History
Introduced in R2014a
See Also
ltePUCCH1
| ltePUCCH1Decode
| ltePUCCH1Indices
| ltePUCCH1DRS
| ltePUCCH2DRSIndices
| ltePUCCH3DRSIndices
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