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User equipment and method and device for sending periodic CSI

A technology for user equipment and configuration information, which is applied in the information field and can solve problems such as failure to send CSI

Active Publication Date: 2021-04-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, when the uplink reporting subframe and the downlink measurement subframe are determined by the above two formulas to send CSI, since the TTI length of the uplink and downlink subframes is the same and is 1ms, if the uplink and downlink subframes are not 1ms transmission duration but different length of transmission time, the above two formulas cannot be used to determine the uplink subframe for reporting CSI and the downlink measurement subframe, resulting in the inability to send CSI

Method used

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  • User equipment and method and device for sending periodic CSI
  • User equipment and method and device for sending periodic CSI
  • User equipment and method and device for sending periodic CSI

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Embodiment Construction

[0147] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0148] This embodiment of the present application provides a method for sending periodic CSI, which can acquire and send CSI, such as figure 1 As shown, the method includes:

[0149] 101. The user equipment determines resources for uplink reporting of channel state information (CSI) according to transmission duration information.

[0150] Wherein, the resources required for uplink reporting of the CSI are resources corresponding to a non-1ms transmission duration or resources corre...

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Abstract

The present invention discloses user equipment, and a method and device for sending CSI, which relate to the technical field of information, and can send CSI when the transmission duration corresponding to an uplink subframe or a downlink subframe is a transmission duration that is not 1ms. The method comprises: the user equipment determining, according to transmission duration information, a resource for uplink reporting of channel state information (CSI), the resource required for uplink reporting of CSI being a resource corresponding to a non-1ms transmission duration or a resource corresponding to a 1ms transmission duration, and then sending CSI through the resource required for uplink reporting of CSI. The method and the device are suitable for determining resources required by uplink CSI reporting and downlink CSI measurement resources and sending the CSI when the transmission duration corresponding to the uplink subframe or the downlink subframe is not the transmission duration of 1ms.

Description

technical field [0001] The present application relates to the field of information technology, and in particular to a user equipment and a method and device for sending periodic CSI. Background technique [0002] The state of the wireless channel is usually constantly changing. In order to better adapt to the change of the channel state, the user equipment UE can report the channel state information (English full name: Channel State Information, English abbreviation: CSI) to the base station, so that the base station can according to the user The CSI reported by the device determines the modulation and coding scheme (English full name: modulation and Coding Scheme, English abbreviation: MCS). The resource for measuring CSI is the CSI reference resource. In the time domain, the CSI reference resource is defined as a single downlink subframe or special subframe frame n-n CQI_ref , so the user equipment needs to determine the reported uplink subframe and the downlink subframe ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L5/00H04W72/04
CPCH04L1/0026H04L5/0057H04W72/21H04W24/10H04W72/12
Inventor 刘哲张兴炜黎超孙迎花
Owner HUAWEI TECH CO LTD