Single encoder and decoder for forward error correction coding
Various embodiments disclosed herein provide for a transmitter that can adjust the size of an information block or segment the information block based on a forward error correction (FEC) code optimum efficiency. Certain FEC codes are more efficient at encoding and decoding longer information blocks and if an information block is shorter than a predetermined length, the transmitter can pad the information block with a group of null bits to lengthen the information block to increase the performance of encoding and decoding the information block. In some embodiments, the transmitter can segment the information block into a set of segments, and if the last segment is below the predetermined length, the transmitter can pad the last segment.
1. A transmitter, comprising:
a processor; and
a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
receiving an information block that comprises a first number of bits;
determining that the information block is less than a second number of bits, wherein the second number of bits is associated with a code rate of a forward error correction code, wherein the code rate of the forward error correction code is less than the second number by a predetermined amount;
padding the information block with a group of bits resulting in a padded information block, wherein a number of bits in the group of bits is a difference between the second number and the first number; and
transmitting the padded information block.
2. The transmitter of claim 1 , wherein the transmitting further comprises transmitting the padded information block to a mobile device.
3. The transmitter of claim 2 , wherein the operations further comprise:
transmitting a control signal indicating the number of bits in the group of bits.
4. The transmitter of claim 3 , wherein the control signal comprises a message authentication code header of the information block.
5. The transmitter of claim 1 , wherein the operations further comprise:
encoding the padded information block based on the forward error correction code.
6. The transmitter of claim 1 , wherein the information block is an information block segment.
7. The transmitter of claim 1 , wherein the operations further comprise:
determining that the code rate of the forward error correction code has changed.
8. The transmitter of claim 7 , wherein the operations further comprise:
in response to the determining that the code rate of the forward error correction code has changed, padding the information block with a different number of bits.
9. The transmitter of claim 7 , wherein the determining that the code rate of the forward error correction code has changed is based on control information received from the receiver.
10. The transmitter of claim 1 , wherein the group of bits is a group of null bits.
11. The transmitter of claim 1 , wherein the group of bits is a group of non-null bits.
12. A method, comprising:
receiving, by a transmitter device comprising a processor, an information block that comprises a first number of bits;
determining, by the transmitter device, that the first number of bits of the information block is less than a second number of bits associated with a code rate of a forward error correction code, wherein the code rate of the forward error correction code is set less than the second number of bits by a defined number of bits;
padding, by the transmitter device, the information block with a group of bits resulting in a padded information block, wherein a third number of bits in the group of bits of the padded information block is a difference between the second number and the first number; and
transmitting, by the transmitter device, the padded information block.
13. The method of claim 12 , wherein the transmitting further comprises transmitting the padded information block to a user equipment device.
14. The method of claim 13 , transmitting a control signal indicating the third number of bits in the group of bits.
15. The method of claim 14 , wherein the control signal comprises a message authentication code header of the information block.
16. The method of claim 12 , further comprising:
encoding, by the transmitter device, the padded information block based on the forward error correction code.
17. A non-transitory machine-readable storage medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations, comprising:
receiving an information block that comprises a first number of bits;
determining that the information block comprises less than a second number of bits associated with a code rate of a forward error correction code, wherein the code rate of the forward error correction code is less than the second number of bits by a predefined number of bits;
padding the information block with a group of bits resulting in a padded information block, wherein a third number of bits in the group of bits is a difference between the second number and the first number; and
transmitting the padded information block.
18. The non-transitory machine-readable storage medium of claim 17 , wherein the operations further comprise:
determining that the code rate of the forward error correction code has changed.
19. The non-transitory machine-readable storage medium of claim 18 , wherein the operations further comprise:
in response to the determining that the code rate of the forward error correction code has changed, padding the information block with a different number of bits.
20. The non-transitory machine-readable storage medium of claim 18 , wherein the determining that the code rate of the forward error correction code has changed is based on control information received from the receiver.