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Aperiodic channel state information (CSI) transmission method and device, base station and terminal

A technology of channel state information and transmission method, applied in base station and terminal, transmission method of aperiodic channel state information CSI, device field, can solve problems such as inability to guarantee reliable feedback of aperiodic CSI

Active Publication Date: 2020-07-14
DATANG MOBILE COMM EQUIP CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a transmission method, device, base station and terminal of aperiodic channel state information CSI, to solve the problem that the aperiodic CSI cannot be guaranteed in the prior art Issues with Reliable Feedback on PUCCH

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  • Aperiodic channel state information (CSI) transmission method and device, base station and terminal
  • Aperiodic channel state information (CSI) transmission method and device, base station and terminal
  • Aperiodic channel state information (CSI) transmission method and device, base station and terminal

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Embodiment Construction

[0102] 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.

[0103] The present invention aims at the problem that the reliable feedback of aperiodic CSI on PUCCH cannot be guaranteed in the existing technology, and provides a transmission method of aperiodic channel state information CSI, which is applied to a base station, such as figure 1 shown, including:

[0104] Step 11: sending at least two downlink control information DCIs to the terminal;

[0105] Wherein, at least two DCI-scheduled physical downlink shared channel PDSCH hybrid automatic repeat request confirmation HARQ-ACK uses the same physical uplink control channel PUCCH resource for feedback;

[0106] If one of the at least two DCIs indicates that the terminal reports aperiodic CSI, the aperiodic CSI and HARQ-ACK use the same PUCCH resource for feed...

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Abstract

Provided are an aperiodic channel state information (CSI) transmission method and device, a base station and a terminal. The transmission method comprises the following steps: issuing at least two pieces of downlink control information (DCI) to the terminal, wherein the hybrid automatic repeat request acknowledgement (HARQ-ACK) of the physical downlink shared channel (PDSCH) scheduled by the at least two DCI uses the same physical uplink control channel (PUCCH) resource for feedback; if one DCI in the at least two DCIs indicates that the terminal reports the aperiodic CSI, the aperiodic CSI and the HARQ-ACK use the same PUCCH resource for feedback, and a CSI trigger information domain of DCI issued after indicating that the terminal reports the DCI of the aperiodic CSI also indicates thatthe terminal reports the aperiodic CSI in the PUCCH resource. According to the method, the influence on the feedback information content when the UE misses one DCI triggering the aperiodic CSI reporting can be reduced or prevented, so that the reliable feedback of the aperiodic CSI on the PUCCH is ensured.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a transmission method, device, base station and terminal of aperiodic channel state information CSI. Background technique [0002] In the 5G system, Rel-16 (version 16) may support downlink DCI (downlink control information) to trigger aperiodic CSI (channel state information) to be transmitted through PUCCH (physical uplink control channel). There is no specific transmission scheme yet. Reliable feedback of aperiodic CSI on PUCCH cannot be guaranteed. Contents of the invention [0003] The purpose of the present invention is to provide a transmission method, device, base station and terminal of aperiodic channel state information CSI, so as to solve the problem in the prior art that reliable feedback of aperiodic CSI on PUCCH cannot be guaranteed. [0004] In order to solve the above technical problems, an embodiment of the present invention provides a method f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L1/00H04L1/18H04L5/00
CPCH04L1/0026H04L1/0027H04L5/0055H04L1/1812H04W72/23H04L1/18H04W72/04H04L1/00H04L5/00H04W28/16
Inventor 司倩倩高雪娟艾托尼
Owner DATANG MOBILE COMM EQUIP CO LTD
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