Method and apparatus for code block division

Abstract

A method and apparatus for code block division are provided. The method may include/ the following acts. A reference information block length of a code block is determined according to an obtained division related parameter. A maximum information block length is determined according to the reference information block length and a hardware parameter. A Transport Block (TB) having a length greater than the maximum information block length may be divided into two or more code blocks according to the obtained division related parameter, the hardware parameter and the determined maximum information block length. An information length after code block division is less than the determined maximum information block length.

What is claimed is: 
     
         1 . A method for code block division, comprising:
 dividing a Transfer Block (TB) having a length greater than a maximum information block length into two or more code blocks;   generating check data blocks by performing block encoding on the two or more code blocks;   obtaining encoded code blocks by performing, for each of the two or more code block, the following operations:
 adding redundancy check (CRC) bits, 
 performing channel encoding, and 
 performing rate matching; 
   deleting a part of bits at any position of each encoded code block and a part of bits at any position of each check data block;   performing code block cascading on the encoded code blocks from which the part of bits are deleted, and on the check data blocks from which the part of bits are deleted, wherein the code block cascading is performed by:
 connecting in series bits of the encoded code blocks from which the part of bits has been deleted and bits of the check data blocks from which the part of bits has been deleted; and 
 putting the check data blocks from which the part of bits has been deleted behind the encoded code blocks from which the part of bits has been deleted. 
   
     
     
         2 . The method of  claim 1 , wherein the maximum information block length is obtained from a transmission mode indication. 
     
     
         3 . The method of  claim 1 , wherein the maximum information block length is obtained from a downlink control information (DCI) format. 
     
     
         4 . The method of  claim 1 , wherein the maximum information block length is obtained from a radio network temporary identifier (RNTI). 
     
     
         5 . The method of  claim 1 , wherein the maximum information block length is determined according to at least a maximum number of orthogonal frequency division multiplexing (OFDM) symbols allowed to be occupied by each code block in a time domain, and a number of frequency-domain subcarriers occupied by a transmission signal that includes the TB. 
     
     
         6 . A wireless communication apparatus, comprising:
 a processor configured to:
 divide a Transfer Block (TB) having a length greater than a maximum information block length into two or more code blocks; 
 generate check data blocks by performing block encoding on the two or more code blocks; 
 obtain encoded code blocks by performing, for each of the two or more code block, the following operations:
 add redundancy check (CRC) bits, 
 perform channel encoding, and 
 perform rate matching; 
 
 delete a part of bits at any position of each encoded code block and a part of bits at any position of each check data block; 
 perform code block cascading on the encoded code blocks from which the part of bits are deleted, and on the check data blocks from which the part of bits are deleted, wherein the code block cascading is performed by the processor configured to:
 connect in series bits of the encoded code blocks from which the part of bits has been deleted and bits of the check data blocks from which the part of bits has been deleted; and 
 put the check data blocks from which the part of bits has been deleted behind the encoded code blocks from which the part of bits has been deleted. 
 
   
     
     
         7 . The wireless communication apparatus of  claim 6 , wherein the maximum information block length is obtained from a transmission mode indication. 
     
     
         8 . The wireless communication apparatus of  claim 6 , wherein the maximum information block length is obtained from a downlink control information (DCI) format. 
     
     
         9 . The wireless communication apparatus of  claim 6 , wherein the maximum information block length is obtained from a radio network temporary identifier (RNTI). 
     
     
         10 . The wireless communication apparatus of  claim 6 , wherein the maximum information block length is determined according to at least a maximum number of orthogonal frequency division multiplexing (OFDM) symbols allowed to be occupied by each code block in a time domain, and a number of frequency-domain subcarriers occupied by a transmission signal that includes the TB. 
     
     
         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:
 dividing a Transfer Block (TB) having a length greater than a maximum information block length into two or more code blocks;   generating check data blocks by performing block encoding on the two or more code blocks;   obtaining encoded code blocks by performing, for each of the two or more code block, the following operations:
 adding redundancy check (CRC) bits, 
 performing channel encoding, and 
 performing rate matching; 
   deleting a part of bits at any position of each encoded code block and a part of bits at any position of each check data block;   performing code block cascading on the encoded code blocks from which the part of bits are deleted, and on the check data blocks from which the part of bits are deleted, wherein the code block cascading is performed by:
 connecting in series bits of the encoded code blocks from which the part of bits has been deleted and bits of the check data blocks from which the part of bits has been deleted; and 
 putting the check data blocks from which the part of bits has been deleted behind the encoded code blocks from which the part of bits has been deleted. 
   
     
     
         12 . The non-transitory computer readable storage media of  claim 11 , wherein the maximum information block length is obtained from a transmission mode indication. 
     
     
         13 . The non-transitory computer readable storage media of  claim 11 , wherein the maximum information block length is obtained from a downlink control information (DCI) format. 
     
     
         14 . The non-transitory computer readable storage media of  claim 11 , wherein the maximum information block length is obtained from a radio network temporary identifier (RNTI). 
     
     
         15 . The non-transitory computer readable storage media of  claim 11 , wherein the maximum information block length is determined according to at least a maximum number of orthogonal frequency division multiplexing (OFDM) symbols allowed to be occupied by each code block in a time domain, and a number of frequency-domain subcarriers occupied by a transmission signal that includes the TB.