A method, system and device for sending and receiving transmission information
A technology for transmitting information and transmission blocks, applied in the field of wireless communication, can solve the problems of inconsistent HARQ understanding, inability to decode correctly on the user equipment side, affecting the downlink transmission performance of the system, etc., and achieve the effect of improving the downlink transmission performance of the system
Active Publication Date: 2017-02-08
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology
[0008] Embodiments of the present invention provide a method, system and device for sending and receiving transmission information, to solve the TDD uplink / downlink configuration dynamic change system in the prior art and to use different TDDs for cross-band carrier aggregation and different frequency bands In a system with uplink / downlink configuration, there will be inconsistencies in the understanding of the number of HARQ processes between the network side and the user equipment side, resulting in the failure of correct decoding on the user equipment side and affecting the downlink transmission performance of the system
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[0024] In the embodiment of the present invention, the user equipment and the base station determine the first process number and the second process number, wherein the first process number is smaller than the second process number, and the first process number and the second process number are positive integers, and the first process number is used for Determine the maximum buffer length of any coded block in the downlink transport block on carrier c during rate matching, and the second process number is used to determine the maximum storage quantity B of downlink transport blocks that fail to be decoded on carrier c and the downlink transport blocks that need to be stored The maximum storage length n of any encoded block in the transport block sb ; The user equipment performs rate matching processing on the downlink transmission block according to the first process number, and decodes the information after de-rate matching, and the base station performs rate matching processi...
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The embodiments of the present invention relate to the field of wireless communication technology, in particular to a method, system and device for transmitting and receiving transmission information, which are used to solve the problem in the prior art that there is an inconsistent understanding for the number of the HARQ processes between a network side and a user equipment side so that the result of decoding is incorrect in the user equipment side. The method provided by the embodiment of the application comprises that: the user equipment determines a first number of processes and a second number of processes, de-rate matches the downlink transmission block according to the first number of processes and decodes, wherein, the first number of processes is less than the second number of processes, the first number of processes is used to determine the maximum cache length of any coding block in downlink transmission blocks on a carrier when de-rate matching, the second number of processes is used to determine at least the storage number of downlink transmission blocks decoded unsuccessfully in the user equipment on the carrier, and at least the storage length of any coding block in downlink transmission blocks which is stored if the decoding is unsuccessful. Adopting the embodiments of the invention enables the user equipment to decode correctly.
Description
technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, system and equipment for sending and receiving transmission information. Background technique [0002] In an LTE (Long Term Evolution, Long Term Evolution) system, the code rate of the Turbo coder used in the traffic channel is 1 / 3. In order to improve encoding and decoding efficiency, when a transport block (Transport Block, TB) is larger than 6144 bits, the transport block is divided into code blocks to obtain multiple smaller code blocks (Code Block, CB). Each CB is independently encoded, and the encoding sequences of multiple CBs are concatenated to obtain the encoding sequence of the TB. [0003] The system bit stream, the first parity bit stream and the second parity bit stream output by the turbo encoder are respectively and independently interleaved, and then sequentially collected by the bit collection unit. First, the interleaved syste...
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IPC IPC(8): H04L1/00H04L1/06H04W88/02H04W88/08
CPCH04L1/1822H04L1/1835
Inventor 林亚男沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD