21-03-2019 дата публикации
Номер: US20190089484A1
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Embodiments of this application provide a communications method and apparatus. The method includes: obtaining an input sequence of rate matching, wherein the input sequence is a retransmission sequence corresponding to a transport block, the input sequence comprises M code block groups, a value of M is less than a quantity of code block groups obtained after the transport block is segmented, and the M code block groups comprise Ccode blocks; and performing rate matching on the Ccode blocks, wherein a length of an output sequence of rate matching of each of the Ccode blocks satisfies the following conditions: when j≤C−γ−1, E=N·Q·└G′/C┘; when j>C−γ−1, E=N·Q·┌G′/C┐. The method may be applicable to a system in which transmission is performed based on a code block group, and resources are fully used as many as possible, thereby improving performance. 1. A method for rate matching of a sequence in a communications apparatus , comprising:{'sub': 't', 'obtaining an input sequence of rate matching, which is a retransmission sequence corresponding to a transport block, wherein the input sequence comprises M code block groups, a value of M is less than a quantity of code block groups obtained after the transport block is segmented, and the M code block groups comprise Ccode blocks; and'}{'sub': t', 't', 't', 'L', 'm', 't', 't', 'L', 'm', 't, 'performing rate matching on the Ccode blocks to obtain Coutput sequences of rate matching, wherein a length of an output sequence of rate matching satisfies: when j≤C−γ−1, E=N·Q·└G′/C┘; or when j>C−γ−1, E=N·Q·┌G′/C┐,'}{'sub': L', 'm', 't', 'm', 'L, 'wherein G′=G/(N·Q), γ=G′ mod C, Qis a modulation order, Nis a quantity of data flows, G is a quantity of available bits used for transmitting the transport block and j is a code block number.'}2. The method according to claim 1 , wherein before the performing rate matching on the Ccode blocks claim 1 , the method further comprises:{'sub': j', 'j', 't', 'w', 'IR, 'sup': th', 'th, 'obtaining a ...
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