Abstract
An apparatus and method for transmitting and receiving data in a wireless communication is provided. The method includes Low Density Parity Check (LDPC)-encoding LDPC information bits to generate a codeword determining a number (N punc) of bits to be punctured in parity bits of the codeword determining a number (Npunc-group) of parity bit groups in which all bits are punctured and puncturing the all bits within 0th to (Npunc-group?1)th parity bit groups indicated by a puncturing pattern wherein the puncturing pattern is defined as an order of the parity bit groups defined as 29 45 43 27 32 35 40 38 0 19 8 16 41 4 26 36 30 2 13 42 46 24 37 1 33 11 44 28 20 9 34 3 17 6 21 14 23 7 22 47 5 10 12 15 18 25 31 and 39.
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| Not Available | 04/07/2013 | ISLD-201306-005 | SAMSUNG |
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| Not Available | 10/07/2015 | ISLD-201506-015 | SAMSUNG |
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Specification Information
Specification Information
Technologies
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Technologies
Multiplexing
Product
Use Cases
Services
Claim
1. A method for an operation of a transmitter, the method comprising:
Low Density Parity Check (LDPC)-encoding LDPC information bits to generate a codeword;
determining a number (Npunc) of bits to be punctured in parity bits of the codeword;
determining a number (Npunc � group) of parity bit groups in which all bits are punctured; and
puncturing the all bits within 0th to (Npunc � group?1)th parity bit groups indicated by a puncturing pattern to create a punctured codeword,
wherein the puncturing pattern is defined as an order of the parity bit groups defined as 29, 45, 43, 27, 32, 35, 40, 38, 0, 19, 8, 16, 41, 4, 26, 36, 30, 2, 13, 42, 46, 24, 37, 1, 33, 11, 44, 28, 20, 9, 34, 3, 17, 6, 21, 14, 23, 7, 22, 47, 5, 10, 12, 15, 18, 25, 31 and 39.
2. The method of claim 1, wherein each of the parity bit groups includes a pre-defined number of bits which is a divisor of an interval in which a pattern of a column is repeated in a parity part matrix of the parity check matrix.
3. The method of claim 1, further comprising:
puncturing one or more bits in an Npunc � group th parity bit group additionally.
4. The method of claim 1, further comprising:
transmitting the punctured codeword.
5. A method for an operation of a receiver, the method comprising:
receiving a punctured codeword;
determining a number of bits punctured in Low Density Parity Check (LDPC) parity bits of the punctured codeword;
determining a number (Npunc � group) of parity bit groups in which all bits are punctured;
setting LDPC decoder input values corresponding to all parity bits within 0th to (Npunc � group?1)th parity bit groups in an LDPC codeword indicated by a puncturing pattern by a value representing punctured parity bits; and
setting LDPC decoder input values for the non-punctured remnant parity bits in the LDPC codeword according to reception values of the punctured codeword,
wherein the puncturing pattern is defined as an order of the parity bit groups defined as 29, 45, 43, 27, 32, 35, 40, 38, 0, 19, 8, 16, 41, 4, 26, 36, 30, 2, 13, 42, 46, 24, 37, 1, 33, 11, 44, 28, 20, 9, 34, 3, 17, 6, 21, 14, 23, 7, 22, 47, 5, 10, 12, 15, 18, 25, 31 and 39.
6. The method of claim 5, wherein each of the parity bit groups includes a pre-defined number of bits which is a divisor of an interval in which a pattern of a column is repeated in a parity part matrix of a parity check matrix.
7. The method of claim 5, further comprising:
setting LDPC decoder input values corresponding to some bits in the Npunc � group th parity bit group in the LDPC codeword by a value representing the punctured parity bits.
8. An apparatus for a transmitter, the apparatus comprising:
a coding unit for Low Density Parity Check (LDPC)-encoding LDPC information bits to generate a codeword;
a puncturing unit for determining a number (Npunc) of bits to be punctured in parity bits of the codeword, for determining a number (Npunc � group) of parity bit groups in which all bits are punctured, and for puncturing the all bits within 0th to (Npunc � group?1)th parity bit groups indicated by a puncturing pattern to create a punctured codeword; and
a transmitter for transmitting the punctured codeword,
wherein the puncturing pattern is defined as an order of the parity bit groups defined as 29, 45, 43, 27, 32, 35, 40, 38, 0, 19, 8, 16, 41, 4, 26, 36, 30, 2, 13, 42, 46, 24, 37, 1, 33, 11, 44, 28, 20, 9, 34, 3, 17, 6, 21, 14, 23, 7, 22, 47, 5, 10, 12, 15, 18, 25, 31 and 39.
9. The apparatus of claim 8, wherein each of the parity bit groups includes a pre-defined number of bits which is a divisor of an interval in which a pattern of a column is repeated in a parity word part matrix of the parity check matrix.
10. The apparatus of claim 8, wherein the puncturing unit punctures one or more bits in an Npunc � group th parity bit group additionally.
11. An apparatus for a receiver, the apparatus comprising:
a receiver for receiving a punctured codeword; and
a punctured bit restoring unit for determining a number of bits punctured in Low Density Parity Check (LDPC) parity bits of the punctured codeword, determining a number (Npunc � group) of parity bit groups in which all bits are punctured, setting LDPC decoder input values corresponding to all parity bits within 0th to (Npunc � group-1)th parity bit groups in the LDPC codeword indicated by a puncturing pattern by a value representing punctured parity bits, and for setting LDPC decoder input values for non-punctured remnant parity bits in the LDPC codeword according to reception values of a shortened and punctured codeword,
wherein the puncturing pattern is defined as an order of the parity bit groups defined as 29, 45, 43, 27, 32, 35, 40, 38, 0, 19, 8, 16, 41, 4, 26, 36, 30, 2, 13, 42, 46, 24, 37, 1, 33, 11, 44, 28, 20, 9, 34, 3, 17, 6, 21, 14, 23, 7, 22, 47, 5, 10, 12, 15, 18, 25, 31 and 39.
12. The apparatus of claim 11, wherein each of the parity bit groups includes a pre-defined number of bits which is a divisor of an interval in which a pattern of a column is repeated in a parity word part matrix of the parity check matrix.
13. The apparatus of claim 11, wherein the punctured bit restoring unit further sets LDPC decoder input values corresponding to some bits in the Npunc � group th parity bit group in the LDPC codeword by a value representing the punctured parity bits.
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