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lteUCIEncode

PUCCH format 2, 2a, and 2b transmission UCI encoding

Syntax

Description

example

cw = lteUCIEncode(ucibits) returns a column vector of coded UCI bits, cw, resulting from processing of control information, ucibits. ucibits is a column vector of CQI/PMI or RI bits (UCI), representing the CQI/PMI or RI information fields described in TS 36.212, Section 5.2.3.3 [1]. ucibits should be a vector containing up to 13 bits. For PUCCH formats 2a and 2b with extended cyclic prefix, this vector should also contain the appended 1 or 2 HARQ-ACK bits for joint encoding.

The UCI processing is defined in TS 36.212, Section 5.2.3 [1], and consists of a (20,A) block code, where A is the number of bits in ucibits. The coded bit vector, cw, is 20 bits long.

Examples

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Encode UCI bits representing RI=3 using two bits. According to TS 36.212, Table 5.2.2.6-6 this maps to the set of input bits [1; 0].

cw = lteUCIEncode([1;0])
cw =

  20×1 int8 column vector

   1
   1
   1
   1
   1
   1
   1
   1
   1
   1
   1
   1
   1
   1
   1
   1
   1
   1
   1
   1

Input Arguments

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Control information bits, specified as a logical vector of length 1 to 13. This vector contains the CQI/PMI or RI logical bits (UCI), representing the CQI/PMI or RI information fields. It should be up to 13 bits in length. For PUCCH formats 2a and 2b with extended cyclic prefix, this vector should also contain the appended 1 or 2 HARQ-ACK bits for joint encoding.

Data Types: logical

Output Arguments

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Coded UCI bits, returned as a 20-by-1 integer column vector. The coded bit vector is 20 bits long.

Data Types: int8

References

[1] 3GPP TS 36.212. "Multiplexing and channel coding." 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA). URL: http://www.3gpp.org.

Introduced in R2014a

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