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Uplink transmission method and device, communication method and device, base station, terminal and storage medium

A technology of transmission method and communication method, which is applied in the direction of transmission system, wireless communication, radio transmission system, etc., and can solve the problems of insufficient transmission flexibility, low system transmission efficiency, and affecting system performance, etc.

Pending Publication Date: 2019-10-22
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The uplink transmission, communication method, device, base station, terminal, and storage medium provided by the embodiments of the present invention mainly solve the technical problem of providing an uplink transmission scheme to solve the problem of insufficient transmission flexibility in the existing uplink scheduling-free transmission scheme. The problem of low transmission efficiency; at the same time, a communication scheme is provided to solve the problem that the system communication resources are not fully utilized in the existing communication scheme, which affects the system performance

Method used

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  • Uplink transmission method and device, communication method and device, base station, terminal and storage medium
  • Uplink transmission method and device, communication method and device, base station, terminal and storage medium
  • Uplink transmission method and device, communication method and device, base station, terminal and storage medium

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Embodiment 1

[0110]Grant-free scheduling-free transmission mode, which is mainly divided into two types, one is that the base station configures all transmission parameters semi-statically through the upper layer, including time / frequency domain resources, MCS (Modulation and Coding Scheme, modulation and coding scheme) and TBS (Transmission Block Size, transmission block size), etc., the terminal determines whether data transmission is required according to its own transmission requirements, and if so, performs data transmission according to the configured transmission parameters. The other is to increase the repeated transmission of transmission parameters on the basis of SPS. The parameters such as real-time / frequency domain resources, MCS and TBS are all indicated by the base station through the downlink control information of activated SPS.

[0111] However, in the above-mentioned uplink transmission scheme, the uplink transmission of the terminal still needs to be carried out complete...

Embodiment 2

[0149]With the explosive growth of communication demands, the spectrum resources are getting tighter and tighter. In order to meet the exponentially growing demand, additional spectrum needs to be added. Due to the limited amount of licensed spectrum, communication providers need to seek license-free spectrum, that is, unlicensed carriers to solve the problem. Compared with licensed carriers, unlicensed carriers have the advantages of free / low cost, low access requirements, resource sharing, more wireless access technologies, and more sites. At present, 3GPP technology has carried out project research on the transmission operation of unlicensed carriers. .

[0150] Usually, before using an unlicensed carrier for service transmission, LBT needs to be performed, and LBT is also called listen before talk, or clear channel assessment (Clear Channel Assessment, CCA). LBT processing refers to the process of detecting the carrier to be used for service transmission to determine whet...

Embodiment 3

[0166] In order to make those skilled in the art more aware of the various details of the uplink transmission method in Embodiment 1, this embodiment will further explain some of the details on the basis of the foregoing embodiments. This embodiment mainly uses autonomous transmission parameters including CBGTI as an example to illustrate:

[0167] After the terminal successfully executes LBT, the terminal can transmit one or more CBGs in a TB within a period, and at the same time, the terminal carries CBGTI information in the UCI information. Optionally, the CBGTI information is presented in the form of a bitmap to indicate to the base station The uplink transmission is for which or which CBGs in the TB. It should be understood that the CBGs transmitted in the same uplink transmission share the same HARQ process, and the terminal can also notify the base station of the HARQ process number, and at the same time indicate through the NDI information whether the HARQ process is a...

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Abstract

The embodiment of the invention provides an uplink transmission method and device, a communication method and device, a base station, a terminal and a storage medium. In order to solve the problems oflow uplink transmission flexibility and low transmission efficiency in the prior art, in the uplink transmission scheme provided by the embodiment of the invention, at least one autonomous transmission parameter can be determined for uplink transmission by a terminal side, and then the autonomous transmission parameter is sent to a base station, and uplink data is sent to the base station based on the autonomous transmission parameter. And after receiving the autonomous transmission parameters sent by the terminal, the base station detects and receives the data sent by the terminal based on the autonomous transmission parameters. Therefore, the terminal can flexibly perform data transmission according to the current available transmission resources without passively and deliberately waiting until the transmission resources meet the scheduling requirements of the base station, so that the transmission flexibility of the terminal side is greatly enhanced, and the system transmission efficiency and the utilization rate of the transmission resources are improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to an uplink transmission, a communication method, a device, a base station, a terminal, and a storage medium. Background technique [0002] In NR (New Radio, new air interface), uplink transmission mainly includes two modes, one is SUL (scheduled uplink transmission) mode, and the other is Grant-free scheduling-free uplink transmission. Unlicensed uplink data transmission of LTE introduces AUL (Autonomous Uplink Access) technology. However, in general, the existing uplink transmission scheme is not flexible enough, which leads to poor system transmission efficiency and underutilization of system resources, thus making the performance of the entire communication system underutilization and affecting user experience. [0003] Therefore, it is urgent to propose a new communication solution to solve the above problems, improve system performance, and enhance user experience on the te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W74/00H04W74/08H04W72/54
CPCH04W74/006H04W74/0808H04W72/21H04W74/004H04L27/0006H04B7/0695H04W72/1268H04W72/0446
Inventor 李新彩赵亚军杨玲徐汉青
Owner ZTE CORP
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