CSI reporting method and device, storage medium and user terminal

A technology of parameter value and transmission point, applied in the field of storage media, CSI reporting method and device, and user terminal, which can solve problems such as inability to adapt to Multi-TRP

Active Publication Date: 2020-07-07
SPREADTRUM SEMICON (NANJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above discarding rules are only applicable to the case of a single transmission point (Transfer Point, TRP). UCI) contains the CSI feedback information of N TRPs, and the UE needs to report the CSI information to multiple TRPs
[0006] Howev

Method used

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  • CSI reporting method and device, storage medium and user terminal
  • CSI reporting method and device, storage medium and user terminal
  • CSI reporting method and device, storage medium and user terminal

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Embodiment Construction

[0035] In the prior art, the UE reports the CSI to the network side to inform the current channel condition, and when the number of bits of the CSI information is greater than the preset number of bearer bits, part of the CSI information will be discarded.

[0036] Specifically, a Type I CSI reporting manner or a Type II CSI reporting manner may be selected. Among them, the parameters reported by Type I CSI may include CRI, RI, PMI, and CQI, wherein, when RI is greater than 4, there may be CQIs of two transport blocks (Transport Block, TB); the parameters reported by Type II CSI may include RI , CQI, the number of wideband non-zero amplitude coefficients in each layer, and PMI.

[0037] Referring to Table 1, Table 1 is a table of CSI information carried by PUCCH resources and PUSCH resources.

[0038] Table 1

[0039]

[0040] The CSI may include periodic CSI (period CSI, P-CSI), aperiodic CSI (aperiodic CSI, AP-CSI) and semi-persistent CSI (Semi-period CSI, SP-CSI).

[...

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Abstract

Disclosed are a CSI reporting method and device, a storage medium and a user terminal. The method comprises: determining CSI information to be reported to N transmission points, the CSI information comprising N CRI parameter values, N RI parameter values, PMI parameter values of the N transmission points and CQI parameter values of the N transmission points; if the bit number of the CSI information is greater than a preset bearing bit number, sequentially discarding a part of parameter values in the CSI information according to a preset discarding sequence; and reporting the remaining part inthe CSI information to the N transmission points, wherein the N CRI parameter values are in one-to-one correspondence with the N transmission points, the N RI parameter values are in one-to-one correspondence with the N transmission points, the PMI parameter values of the N transmission points are in one-to-one correspondence with the N transmission points, and the CQI parameter values of the N transmission points are in one-to-one correspondence with the N transmission points. According to the scheme, the invention can better adapt to Multi-TRP scenes in 5G NR R16.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a CSI reporting method and device, a storage medium, and a user terminal. Background technique [0002] In the 5G New Radio (NR) technology R15 standard, the user terminal (User Equipment, UE) reports channel state information (Channel state information, CSI) to the network side (such as the base station) to inform the current channel conditions, so that The network side changes the transmission strategy to optimize scheduling. [0003] Specifically, a Type 1 (Type I) CSI reporting manner or a Type 2 (Type II) CSI reporting manner may be selected. Wherein, the parameters reported by Type I CSI may include Channel State Information-Reference Signal Resource Indicator (CRI), Rank Indicator (Rank Indicator, RI), Precoding Matrix Indicator (Pre-coding matrix indicator, PMI) and channel quality information (Channel Quality Information, CQI); the parameters repor...

Claims

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Application Information

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IPC IPC(8): H04L5/00
CPCH04L5/0057
Inventor 王钰华苗润泉王化磊杨毅蔡红亮
Owner SPREADTRUM SEMICON (NANJING) CO LTD
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