An information transmission method, base station and terminal

An information transmission and base station technology, which is applied in the field of communication applications to achieve the effect of reducing downlink control overhead and transmission delay

Active Publication Date: 2021-07-27
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an information transmission method, base station and terminal to solve the problem of how to realize aperiodic CSI transmission when multiple downlink DCIs simultaneously indicate aperiodic CSI reporting in the same PUCCH resource

Method used

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  • An information transmission method, base station and terminal
  • An information transmission method, base station and terminal
  • An information transmission method, base station and terminal

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Embodiment Construction

[0137] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0138] Such as figure 1 As shown, an information transmission method is provided for an embodiment of the present invention, which is applied to a base station, including:

[0139] Step 101: Send the first downlink downlink control information DCI used to instruct the terminal to report the aperiodic channel state information CSI, and the hybrid automatic repeat request confirmation HARQ-ACK corresponding to the physical downlink shared channel PDSCH scheduled by the first downlink DCI The first downlink DCI indicates that the aperiodic CSI reported by the terminal is transmitted in the same physical uplink control channel PUCCH resource;

[0140] In this step, the downlink DCI includes a CSI trigger information field, and the CSI trigger information fi...

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Abstract

The present invention provides an information transmission method, a base station and a terminal to solve the problem of how to realize aperiodic CSI transmission when multiple downlink DCIs simultaneously indicate aperiodic CSI reporting in the same PUCCH resource. The method of the present invention: sending the first downlink DCI for instructing the terminal to report aperiodic CSI, the HARQ-ACK corresponding to the PDSCH scheduled by the first downlink DCI and the aperiodic CSI reported by the first downlink DCI indicating the terminal The CSI is transmitted in the same PUCCH resource; the HARQ-ACK and the aperiodic CSI sent by the terminal on the PUCCH resource are received. The present invention can transmit the aperiodic CSI through the PUCCH format, reduce the downlink control overhead, and reduce the transmission delay of the aperiodic CSI.

Description

technical field [0001] The present invention relates to the technical field of communication applications, in particular to an information transmission method, a base station and a terminal. Background technique [0002] In the NR Rel-15 system, aperiodic CSI (Channel State Information, channel state information) is transmitted through a PUSCH (Physical Uplink Shared Channel, physical uplink shared channel). The base station notifies the UE (User Equipment, user equipment) whether to perform aperiodic CSI reporting through the CSI request field in the DCI format 1_0. [0003] The CSI request field of DCI format 1_0 may be 0, 1, 2, 3, 4, 5 or 6 bits. When the CSI request is all 0, no CSI reporting is triggered. Otherwise, report the aperiodic CSI according to the high-layer configuration information. The base station may trigger aperiodic CSI reporting to be transmitted together with uplink data, or may only trigger aperiodic CSI reporting. The base station may use the pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/18H04L5/00
CPCH04L1/0026H04L1/1812H04L5/0055H04L5/0057H04L1/00H04L1/18H04L5/00
Inventor 司倩倩高雪娟
Owner DATANG MOBILE COMM EQUIP CO LTD
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