Signal segmentation method and CRC attachment method for reducing undetected error
First Claim
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1. A transmitting end device comprising:
- a processor configured to;
attach a first type error checking code to a first type signal block to produce a sequence,segment the sequence into one or more second type signal blocks when a length of the sequence is longer than a maximum code block size, wherein a number of blocks in the one or more second type signal blocks is determined based on a result of subtracting a length of a second type error checking code from the maximum code block size,attach the second type error checking code to each of the one or more second type signal blocks when the length of the sequence is longer than the maximum code block size, andprepare a transmission signal based on each of the one or more second type signal blocks; and
a transmitter configured to transmit the transmission signal to a receiving end device,wherein the first and second type error checking codes are first and second CRC (Cyclic Redundancy Check) codes, respectively,wherein a first CRC generation polynomial for generating one of the first and second CRC codes is;
g(x)=x24+x23+x6+x5+x+1, andwherein a second CRC generation polynomial for generating the other one of the first and second CRC codes has the same order as the first CRC generation polynomial, but has different terms from those of the first CRC generation polynomial.
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Abstract
The present invention provides for applying a cyclic redundancy check (CRC) to a data signal. The present invention includes attaching a first CRC to a first data signal block having a first length, segmenting the first data signal block attached with the first CRC into a plurality of second data signal blocks having a length shorter than the first length, respectively generating a second CRC for each second data signal block, and attaching the generated second CRC to the respective second data signal block. Moreover, the first CRC and second CRC may be generated from respectively different CRC generating polynomial equations.
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3 Claims
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1. A transmitting end device comprising:
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a processor configured to; attach a first type error checking code to a first type signal block to produce a sequence, segment the sequence into one or more second type signal blocks when a length of the sequence is longer than a maximum code block size, wherein a number of blocks in the one or more second type signal blocks is determined based on a result of subtracting a length of a second type error checking code from the maximum code block size, attach the second type error checking code to each of the one or more second type signal blocks when the length of the sequence is longer than the maximum code block size, and prepare a transmission signal based on each of the one or more second type signal blocks; and a transmitter configured to transmit the transmission signal to a receiving end device, wherein the first and second type error checking codes are first and second CRC (Cyclic Redundancy Check) codes, respectively, wherein a first CRC generation polynomial for generating one of the first and second CRC codes is;
g(x)=x24+x23+x6+x5+x+1, andwherein a second CRC generation polynomial for generating the other one of the first and second CRC codes has the same order as the first CRC generation polynomial, but has different terms from those of the first CRC generation polynomial. - View Dependent Claims (2, 3)
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Specification