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Data transmission method and related device

A technology for data transmission and terminal equipment, which is applied in digital transmission systems, transmission systems, and error prevention/detection using return channels. HARQ process number and other issues to achieve the effect of reducing complexity

Active Publication Date: 2019-01-15
HUAWEI TECH CO LTD
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  • Claims
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Problems solved by technology

[0008] The embodiment of the present application provides a data transmission method and related equipment. By determining various correspondences among HARQ process numbers, redundancy versions, and authorization-free transmission resources, it solves the problem that the base station cannot Determine the HARQ process number used by the terminal device to send data, which in turn causes the problem that it cannot be decoded, and realizes that the base station can successfully demodulate the data when receiving the unlicensed transmission data, and at the same time reduce the complexity of the receiver

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  • Data transmission method and related device
  • Data transmission method and related device

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Embodiment Construction

[0042] The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application, and are not intended to limit the present application.

[0043] The following will clearly describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0044] It should be understood that in current cellular communication systems, such as Global System for Mobile Communication (referred to as "GSM") system, Wideband Code Division Multiple Access (referred to as "WCDMA") system, long-term In a comm...

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Abstract

The present application provides a data transmission method and a related device. The method includes that a network device generates a configuration message, wherein the configuration message includes one or more hybrid automatic repeat request (HARQ) process numbers, each of the HARQ process numbers corresponds to one or more license-exempt transmission resources, and the configuration message is used for configuring one or more license-exempt transmission resources for a terminal device in each time-domain period; and the network device transmits the configuration message to the terminal device. The data transmission method solves the problem that a base station, because of incorrectly determining the number of data retransmission times, cannot determine the HARQ process number used bythe terminal device to transmit data so as to cause decoding incapability. The base station can successfully demodulate the data when receiving the license-exempt transmission data. The complexity ofa receiver is reduced.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a data transmission method and related equipment. Background technique [0002] Ultra Reliability and Low Latency Communication (URLLC) scenario is one of the application scenarios of 5G communication. In URLLC, the reliability and low delay characteristics of data transmission need to be satisfied at the same time. In order to meet the requirement of low latency, a new transmission mechanism was proposed and became a technology of 5G communication. In this application, this new transmission mechanism is called Grant-free transmission mechanism, but it can also be other similar names. The basic idea is that when the terminal equipment has new data arriving, it does not need to report Request resources, but directly use pre-allocated resources to send the data to the base station. The base station receives the data sent by the terminal device on pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/18H04W72/04
CPCH04L1/0052H04L1/1864H04W72/04
Inventor 吴艺群徐修强陈雁
Owner HUAWEI TECH CO LTD
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