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A harq feedback method for uplink data, terminal equipment and network equipment

A technology for terminal equipment and network equipment, applied in digital transmission systems, using return channels for error prevention/detection, transmission path sub-channel allocation, etc., can solve problems such as no solution, improve robustness, and overcome low efficiency Effect

Active Publication Date: 2022-01-18
CHINA ACADEMY OF INFORMATION & COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using this method, multiple HARQ processes can be assigned to the terminal at a time, but the downlink control information in the current 5G NR solution only indicates whether one HARQ process is new data
How does the network device give feedback when multiple HARQ processes are uplinked? There is no solution

Method used

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  • A harq feedback method for uplink data, terminal equipment and network equipment
  • A harq feedback method for uplink data, terminal equipment and network equipment
  • A harq feedback method for uplink data, terminal equipment and network equipment

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Embodiment Construction

[0037] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0038] The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0039] figure 1 It is a flow chart of an embodiment of the method of the present invention applied to a network device.

[0040] The embodiment of the present application propose...

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Abstract

The present application discloses a HARQ feedback method for uplink data, which is used in a mobile communication system. The downlink control channel contains second information and or third information; the second information includes information on uplink data channels from X terminal devices ACK / NACK feedback information, X is a positive integer; the third information includes parameters used to control the uplink data channel. The present application also proposes a terminal device and a network device applying the method. In order to solve the ACK / NACK feedback of multiple uplink HARQ processes, the present invention provides a solution for realizing the ACK / NACK information feedback of the base station for uplink data transmission for the terminal.

Description

technical field [0001] The present application relates to the technical field of mobile communication, and in particular to a HARQ feedback method for uplink data and a network device and a terminal device applying it. Background technique [0002] With the completion of the first version of the 5G New Radio (NR) standard, 5G will gradually expand to different fields. One of the important directions is the use of unlicensed frequency bands. Compared with licensed frequency bands, unlicensed frequency bands need to consider the coexistence of different systems, such as Wifi systems, LTE-based LAA systems, etc. In order to allow multiple systems to coexist harmoniously, regulators in various countries adopt mandatory listen-before-transmit technology (LBT) for the use of unlicensed frequency bands, that is, data can only be sent when the current channel is detected to be unoccupied. The problem with this mechanism is that some data cannot be guaranteed to be sent at a certai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L1/18H04L5/00
CPCH04L1/1607H04L1/1812H04L5/0053
Inventor 刘晓峰王志勤
Owner CHINA ACADEMY OF INFORMATION & COMM
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