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Uplink HARQ information transmission and detection method, terminal and base station

A technology of a transmission method and a detection method, which is applied in the direction of transmission modification based on link quality, error prevention/detection using a return channel, transmission system, etc., and can solve the problem of increasing the number of bits of uplink HARQ information and reducing the accuracy of uplink HARQ information , affecting the uplink coverage of the cell and other issues, to achieve the effect of improving uplink coverage, reducing the number of bits, and improving accuracy

Inactive Publication Date: 2019-08-13
CHINA MOBILE COMM LTD RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If each TB is configured with CBG-basedHARQ mode, the direct cascading method will greatly increase the number of bits in the uplink HARQ information, and the increase in the number of bits in the uplink HARQ information will reduce the accuracy of uplink HARQ information reception, thus affecting Uplink coverage of the cell
However, using HARQ bundling will reduce the number of bits of HARQ information, but it will reduce the spectral efficiency of the system.

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  • Uplink HARQ information transmission and detection method, terminal and base station
  • Uplink HARQ information transmission and detection method, terminal and base station
  • Uplink HARQ information transmission and detection method, terminal and base station

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Embodiment Construction

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0056] In the following embodiments, the terminal is configured in the CBG-based HARQ mode and the terminal needs to feed back HARQ information of M (wherein, M is an integer greater than or equal to 1) TB as an example for illustration.

[0057] refer to figure 1 , figure 1 It is a schematic flowchart of a method for transmitting uplink HARQ information according to Embodiment 1 of the p...

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Abstract

The invention provides an uplink HARQ information transmission and detection method, a terminal and a base station. The transmission method comprises the following steps of: generating an uplink HARQinformation sequence for the M transmission blocks, wherein the uplink HARQ information sequence comprises an HARQ bit sequence and a feedback state bit sequence which are cascaded, the HARQ bit sequence comprises ACK / NACK information of each transmission block, the type of the ACK / NACK information of the transmission block is the ACK / NACK information based on the whole transmission block or the ACK / NACK information based on each code block group in the transmission block, the feedback state bit sequence comprises a feedback state bit of each transmission block, and the feedback state bit is determined by the type of the ACK / NACK information of the transmission blocks, M is an integer greater than or equal to 1; and sending the uplink HARQ information sequence to the base station. Therefore, the bit number of the uplink HARQ information is reduced, and the uplink coverage range is expanded.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method for transmitting and detecting uplink Hybrid Automatic Repeat reQuest (HARQ for short) information, a terminal and a base station. Background technique [0002] In the Long Term Evolution (LTE for short) system, the Transport Block (TB for short) received by the terminal in a certain downlink subframe contains multiple code blocks (CodeBlock, CB for short). The TB sends uplink HARQ information, that is, only 1-bit Acknowledgment / Negative Acknowledgment (ACK / NACK for short) information is generated 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 standardization process of the fifth-generation mobile communication technology (5G for short), in order to improve spectrum efficiency, a Code Block Group-based (CBG-based) HARQ mode is introduced. One TB includes multiple Code...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/16H04L1/00
CPCH04L1/0038H04L1/1607H04L1/1812
Inventor 周伟倪吉庆崔春风
Owner CHINA MOBILE COMM LTD RES INST