Patent ID: 9338691
Filing Date: 2016-05-10
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A method for encoding a transport block in a wireless communication system, the method comprising: determining, by a transmitter, a size of the transport block; attaching, by the transmitter, a first cyclic redundancy check (CRC) code to the transport block having the determined size to produce a first CRC-attached transport block; segmenting, by the transmitter, the first CRC-attached transport block into a plurality of code blocks when a size of the first CRC-attached transport block is larger than a maximum code block size; attaching, by the transmitter, a second CRC code to each of the plurality of code blocks to produce a plurality of second CRC-attached code blocks; and encoding, by the transmitter, the second CRC-attached code blocks by a turbo-encoder, wherein the size of the transport block is determined from among a plurality of first predetermined transport block sizes, wherein the size of the transport block is determined based on a 256 quadrature amplitude modulation (QAM) scheme, a size of an allocated resource, and a number of layers, wherein the plurality of the first predetermined transport block sizes includes 305976 bits, 324336 bits, and 391656 bits when the transport block is mapped to four-layer spatial multiplexing, and wherein the size of the transport block is determined from among a plurality of second predetermined transport block sizes to satisfy that a size of the first CRC-attached transport block is equal to an internal interleavers size of the turbo-encoder when the size of the first CRC-attached transport block is smaller than or equal to the maximum code block size.