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Data transmission method and device

A data transmission method and data technology, applied in the field of communication, can solve the problem that terminal equipment cannot perform scheduling-free transmission, etc.

Active Publication Date: 2020-11-17
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After the terminal device performs scheduled transmission, there is a problem that the Hybrid Automatic Repeat reQuest (HARQ) process is blocked, and the terminal device cannot perform scheduling-free transmission

Method used

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

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Embodiment Construction

[0062] The embodiments of the present application can be applied to wireless communication systems. It should be noted that the wireless communication systems mentioned in the embodiments of the present application include but are not limited to: Narrow Band-Internet of Things (NB-IoT), Global Mobile Communication system (Global System for Mobile Communications, GSM), enhanced data rate for GSM Evolution system (Enhanced Data rate for GSM Evolution, EDGE), wideband code division multiple access system (Wideband Code Division Multiple Access, WCDMA), code division multiple access 2000 system (Code Division Multiple Access, CDMA2000), time division synchronous code division multiple access system (Time Division-Synchronization Code Division Multiple Access, TD-SCDMA), long term evolution system (Long Term Evolution, LTE) system and the fifth generation mobile communication (the 5th Generation mobile communication technology, 5G) system.

[0063] The communication device involved...

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Abstract

This application provides a data transmission method and an apparatus. The method includes: receiving first indication information sent by a network device, where the first indication information includes identifier information of a first HARQ process and information about a first resource; sending first data of the first HARQ process on the first resource based on the first indication information; sending data of the first HARQ process based on an instruction of the network device within a preset time after the first data is sent; and sending data of the first HARQ process on a second resource after the preset time ends, where the second resource is used for scheduling-free transmission. Therefore, after a terminal device performs scheduling transmission, a HARQ process can be prevented from being blocked, so that the terminal device can continue to perform scheduling-free transmission.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a data transmission method and device. Background technique [0002] The 3rd Generation Partnership Project (3GPP) defines three frame structures in the Long Term Evolution (LTE) system, one of which is FS3 (Framestructure 3), and the uplink and downlink are all in one Spectrum resources, with flexible uplink and downlink subframe ratios, are mainly used in licensed assisted access (LAA) cells and in unlicensed (unlicensed) frequency bands. In these unlicensed frequency bands, all terminal devices or network devices ensure coexistence and fair sharing of these frequency bands through a listen before talk (LBT) mechanism. LBT can be understood as channel idle detection, and terminal devices or network devices are transmitting Before sending data, channel idle detection is required, and data can only be sent when the channel is detected to be idle. After the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18
CPCH04L1/1812H04L1/1887H04L1/1822H04L1/1864H04L1/1874H04L1/188H04L1/189H04L1/18H04L5/00H04W12/10H04L1/1819H04L1/1835H04W28/0278H04W52/365H04W76/11H04W80/02
Inventor 酉春华赵力
Owner XFUSION DIGITAL TECH CO LTD