Method and apparatus for code block division

1. A method for code block division, comprising:

determining a maximum information block length according to a division related parameter; and

dividing a Transport Block (TB) having a length greater than the maximum information block length into two or more code blocks;

wherein an information length after code block division is less than the determined maximum information block length;

wherein the determining the maximum information block length according to the division related parameter comprises:

determining a reference information block length of a code block according to the division related parameter; and

determining the maximum information block length according to the reference information block length and a hardware parameter;

wherein dividing the TB having a length greater than the maximum information block length into two or more code blocks comprises dividing the TB having a length greater than the maximum information block length into two or more code blocks according to the division related parameter and the determined maximum information block length;

wherein when the division related parameter comprises at least one of a physical channel resource parameter or a spectral efficiency parameter,

the spectral efficiency parameter comprises any one or more of the following parameters: a modulation scheme (M) of a transmission signal, a coding rate (R) of a TB, and a number (N layer ) of spatial layers occupied by the transmission signal, and

the physical channel resource parameter comprises a number (N tb ) of Orthogonal Frequency Division Multiplexing (OFDM) symbols occupied by the TB in a time domain and a number (N subcarrier ) of frequency-domain subcarriers occupied by the transmission signal; and

wherein the determining the reference information block length comprises: determining the reference information block length (K R ) of the code block according to the physical channel resource parameter and the spectral efficiency parameter.

2. The method as claimed in claim 1 , wherein the division related parameter comprises at least one of the physical channel resource parameter, the spectral efficiency parameter or the hardware parameter.

3. The method as claimed in claim 1 , wherein

the reference information block length K R of the code block is obtained based on a following formula: K R =N cb ·N subcarrier ·M·R·N layer ;

where the number (N subcarrier ) of frequency-domain subcarriers occupied by the transmission signal is equal to a product of a number (N RB ) of Resource Blocks (RB) occupied by the transmission signal and a number (N SP ) of subcarriers comprised in each RB.

4. The method as claimed in claim 1 ,

wherein when the division related parameter comprises a physical channel resource parameter, the physical channel resource parameter comprises the number (N tb ) of OFDM symbols occupied by the TB in the time domain and a maximum number (N cb ) of OFDM symbols allowed to be occupied by each code block in the time domain;

wherein the division related parameter further comprises a size (B) of the TB and a length (L) of a Cyclic Redundancy Check (CRC) of each code block;

determining the reference information block length (K R ) of the code block comprises:

determining the reference information block length (K R ) of the code block according to the size (B) of the TB, the length (L) of the CRC of each code block and the physical channel resource parameter.

5. The method as claimed in claim 4 , wherein the reference information block length (K R ) of the code block is obtained based on a following formula:

K

R

=

B

·

N

cb

N

tb

+

L

.

6. An apparatus for code block division, comprising a hardware processor being configured to:

determine a maximum information block length according to a division related parameter; and

divide a Transport Block (TB) having a length greater than the maximum information block length into two or more code blocks;

wherein an information length after code block division is less than the determined maximum information block length;

wherein the maximum information block length according to the division related parameter is determined by:

determining a reference information block length of a code block according to a division related parameter; and

determining the maximum information block length according to the reference information block length and a hardware parameter;

wherein the TB having a length greater than the maximum information block length is divided into two or more code blocks according to the division related parameter and the determined maximum information block length; and

wherein when the division related parameter comprises at least one of a physical channel resource parameter or a spectral efficiency parameter,

the spectral efficiency parameter comprises any one or more of the following parameters: a modulation scheme (M) of a transmission signal, a coding rate (R) of a TB, and a number (N layer ) of spatial layers occupied by the transmission signal, and

the physical channel resource parameter comprises a number (N tb ) of Orthogonal Frequency Division Multiplexing (OFDM) symbols occupied by the TB in a time domain and a number (N subcarrier ) of frequency-domain subcarriers occupied by the transmission signal; and

wherein the reference information block length (K R ) of the code block is determined according to the physical channel resource parameter and the spectral efficiency parameter.

7. The apparatus as claimed in claim 6 , wherein the division related parameter comprises at least one of the physical channel resource parameter, the spectral efficiency parameter or the hardware parameter.

8. The apparatus as claimed in claim 6 , wherein

the reference information block length K R of the code block is obtained based on a following formula: K R =N cb ·N subcarrier ·M·R·N layer ;

where the number (N subcarrier ) of frequency-domain subcarriers occupied by the transmission signal is equal to a product of a number (N RB ) of Resource Blocks (RB) occupied by the transmission signal and a number (N SP ) of subcarriers comprised in each RB.

9. The apparatus as claimed in claim 6 ,

wherein when the division related parameter comprises a physical channel resource parameter, the physical channel resource parameter comprises the number (N tb ) of OFDM symbols occupied by the TB in the time domain and a maximum number (N cb ) of OFDM symbols allowed to be occupied by each code block in the time domain;

wherein the division related parameter further comprises a size (B) of the TB and a length (L) of a Cyclic Redundancy Check (CRC) of each code block;

determining the reference information block length (K R ) of the code block comprises:

determining the reference information block length (K R ) of the code block according to the size (B) of the TB, the length (L) of the CRC of each code block and the physical channel resource parameter.

10. The apparatus as claimed in claim 9 , wherein the reference information block length (K R ) of the code block is obtained based on a following formula:

K

R

=

B

·

N

cb

N

tb

+

L

.

11. A non-transitory computer readable storage media comprising instructions for code block division, wherein the instructions configure a processor to perform a method comprising:

determining a maximum information block length according to a division related parameter; and

dividing a Transport Block (TB) having a length greater than the maximum information block length into two or more code blocks;

wherein an information length after code block division is less than the determined maximum information block length;

wherein the maximum information block length according to the division related parameter is determined by:

determining a reference information block length of a code block according to a division related parameter; and

determining the maximum information block length according to the reference information block length and a hardware parameter;

wherein the TB having a length greater than the maximum information block length is divided into two or more code blocks according to the division related parameter and the determined maximum information block length; and

wherein when the division related parameter comprises at least one of a physical channel resource parameter or a spectral efficiency parameter,

the spectral efficiency parameter comprises any one or more of the following parameters: a modulation scheme (M) of a transmission signal, a coding rate (R) of a TB, and a number (N layer ) of spatial layers occupied by the transmission signal, and

the physical channel resource parameter comprises a number (N tb ) of Orthogonal Frequency Division Multiplexing (OFDM) symbols occupied by the TB in a time domain and a number (N subcarrier ) of frequency-domain subcarriers occupied by the transmission signal; and

wherein the reference information block length (K R ) of the code block is determined according to the physical channel resource parameter and the spectral efficiency parameter.

12. The non-transitory computer readable storage media as claimed in claim 11 , wherein the division related parameter comprises at least one of the physical channel resource parameter, the spectral efficiency parameter or the hardware parameter.

13. The non-transitory computer readable storage media as claimed in claim 11 , wherein

the reference information block length K R of the code block is obtained based on a following formula: K R =N cb ·N subcarrier ·M·R·N layer ;

where the number (N subcarrier ) of frequency-domain subcarriers occupied by the transmission signal is equal to a product of a number (N RB ) of Resource Blocks (RB) occupied by the transmission signal and a number (N SP ) of subcarriers comprised in each RB.

14. The non-transitory computer readable storage media as claimed in claim 11 ,

wherein when the division related parameter comprises a physical channel resource parameter, the physical channel resource parameter comprises the number (N tb ) of OFDM symbols occupied by the TB in the time domain and a maximum number (N cb ) of OFDM symbols allowed to be occupied by each code block in the time domain;

wherein the division related parameter further comprises a size (B) of the TB and a length (L) of a Cyclic Redundancy Check (CRC) of each code block;

determining the reference information block length (K R ) of the code block comprises:

determining the reference information block length (K R ) of the code block according to the size (B) of the TB, the length (L) of the CRC of each code block and the physical channel resource parameter.

15. The non-transitory computer readable storage media as claimed in claim 14 , wherein the reference information block length (K R ) of the code block is obtained based on a following formula:

K

R

=

B

·

N

cb

N

tb

+

L

.