Transport block size determination for equal size code blocks

1. A wireless transmitter comprising processing circuitry operable to:

determine a transport block size, TBS, for a transport block to be communicated between the wireless transmitter and a wireless receiver via a physical channel transmission, the TBS determination using a formula accounting for cyclic redundancy check, CRC, bits wherein the formula is based on an approximate transport block size, TBS 0 , a number of code blocks, C, a number of CRC bits attached to the transport block, L 2 , and a number of CRC bits added to each of the C code blocks, L 3 ; and

transmit the transport block according to the determined TBS.

2. The wireless transmitter of claim 1 , wherein the formula is based on a comparison of TBS 0 plus a number of CRC bits attached to the transport block with a threshold size, Z.

3. The wireless transmitter of claim 2 , wherein the formula is based on a comparison of TBS 0 plus a number of CRC bits attached to the transport block with a threshold size, Z.

4. The wireless transmitter of claim 2 , wherein when TBS 0 plus a number of CRC bits attached to the transport block is greater than the threshold size, Z, the formula includes dividing TBS 0 +L 2 by C*A|, rounding up to the nearest integer, and multiplying the result by C*A, where A is a constant.

5. The wireless transmitter of claim 2 , wherein the formula includes determining C based on dividing TBS 0 plus L 2 by Z minus L 3 , and rounding up to the nearest integer.

6. The wireless transmitter of claim 1 , wherein the formula includes determining the TBS by subtracting L 2 .

7. The wireless transmitter of claim 2 , wherein when TBS 0 plus a number of CRC bits attached to the transport block is less than the threshold size, Z, the formula includes calculating A*ceil(TBS0/A) for a constant A.

8. The wireless transmitter of claim 4 , wherein A is 8.

9. The wireless transmitter of claim 2 , wherein L 2 is 24, L 3 is 24; and Z is one of 3840 and 8448.

10. The wireless transmitter of claim 1 , wherein the formula includes determining TBS 0 based on available transmission resources by determining the approximate transport block size based on a number of symbols available for transmission and a lookup table.

11. A method for use in a wireless transmitter, the method comprising:

determining a transport block size, TBS, for a transport block to be communicated between the wireless transmitter and a wireless receiver via a physical channel transmission, the TBS determination using a formula accounting for cyclic redundancy check, CRC, bits wherein the formula is based on an approximate transport block size, TBS 0 , a number of code blocks, C, a number of CRC bits attached to the transport block, L 2 , and a number of CRC bits added to each of the C code blocks, L 3 ; and

transmitting the transport block according to the determined TBS.

12. The method of claim 11 , wherein the formula is based on a comparison of TBS 0 plus a number of CRC bits attached to the transport block with a threshold size, Z.

13. The method of claim 12 , wherein when TBS 0 plus a number of CRC bits attached to the transport block is greater than the threshold size, Z, the formula includes dividing TBS 0 +L 2 by C, rounding up to the nearest integer, and multiplying the result by C.

14. A wireless receiver comprising processing circuitry operable to:

receive a wireless signal via a physical channel transmission from a wireless transmitter, the wireless signal corresponding to a transport block;

determine a transport block size, TBS, using a formula accounting for cyclic redundancy check, CRC, bits wherein the formula is based on an approximate transport block size, TBS 0 , a number of code blocks, C, a number of CRC bits attached to the transport block, L2, and number of CRC bits added to each of the C code bocks, L3; and

decode the wireless signal to obtain the transport block.