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Transmission and detection method of hybrid automatic repeat request information, terminal and base station

A hybrid automatic retransmission and transmission method technology, applied in the field of communication, can solve the problems of reduced receiving accuracy and reduced spectral efficiency

Pending Publication Date: 2019-07-12
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a transmission and detection method, terminal and base station of HARQ information, so as to solve the problem of reduced reception accuracy or reduced spectrum efficiency caused by the HARQ mode based on code block groups in the prior art

Method used

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  • Transmission and detection method of hybrid automatic repeat request information, terminal and base station
  • Transmission and detection method of hybrid automatic repeat request information, terminal and base station
  • Transmission and detection method of hybrid automatic repeat request information, terminal and base station

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Embodiment Construction

[0081] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0082] Such as figure 1 As shown, the embodiment of the present invention provides a transmission method of hybrid automatic repeat request HARQ information, which is applied to the terminal, including:

[0083] Step 11, receiving one or more transport blocks TB sent by the base station; wherein, each of the transport blocks TB includes multiple code block groups CBG, and each of the code block groups CBG includes one or more code block CBs.

[0084] It should be noted that the terminal is configured in a CBG-based HARQ mode.

[0085] Step 12, if the multiple code block groups contained in the transport block are all transmitted correctly, or, the multiple code block groups contained in the transport block are all transmitted incorrectly, determine that...

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Abstract

The invention provides a transmission and detection method of hybrid automatic repeat request information, a terminal and a base station. The method comprises the following steps: receiving one or more transmission blocks sent by the base station; if the plurality of code block groups contained in the transmission block are transmitted correctly or the plurality of code block groups contained in the transmission block are transmitted mistakenly, determining that the bit number of HARQ information of the transmission block is N1 bits; if the transmission block comprises a code block group whichis correctly transmitted and a code block group which is wrongly transmitted, determining that the bit number of HARQ information of the transmission block is N2 bits; wherein N2 is greater than or equal to the number of code block groups contained in one transmission block; feeding back HARQ information of the transmission block to the base station; according to the embodiment of the invention,the number of bits of uplink HARQ information can be reduced in a CBG-based HARQ mode, and the correct interpretation of the data receiving state of the terminal side by the base station side is not influenced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for transmission and detection of HARQ information, a terminal and a base station. Background technique [0002] In the LTE (Long Term Evolution) system, the transport block (TransportBlock, TB) received by the terminal in a certain downlink subframe will contain multiple code blocks (Code Block, CB), but the uplink HARQ (Hybrid Automatic Repeat Quest, HARQ) information is for the entire TB, that is, only 1-bit ACK / NACK information is fed back for the TB. If a CB in a TB is wrongly transmitted, all CBs in the entire TB need to be retransmitted. [0003] In the current 5G standardization process, in order to improve spectrum efficiency, a code block group (CBG-based) HARQ mode is introduced. A TB includes multiple CBGs, and a CBG includes one or more CBs. When some CBs in the TB are wrongly transmitted, it is only necessary to retransmit the CBG correspo...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04L1/18
CPCH04L1/1607H04L1/1812
Inventor 周伟倪吉庆
Owner CHINA MOBILE COMM LTD RES INST
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