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A csi reporting method and terminal equipment

A terminal equipment and reporting technology, applied in the information field, can solve problems such as incomplete CSI reporting, downlink resource scheduling restrictions, and reduced downlink resource utilization.

Active Publication Date: 2021-01-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In addition, because there may be insufficient CSI resources, currently the UE will no longer report the CSI report corresponding to the low-priority CSI reporting configuration according to the size of the CSI resource and the existing priority rules, but some of the high-priority CSI reported The CSI report corresponding to the reporting configuration may be incomplete due to the hole punching problem. Because the CSI report corresponding to the high-priority CSI reporting configuration obtained by the base station is incomplete, through these incomplete CSI reports, the base station will The UE's downlink resource scheduling will be limited, reducing the utilization of downlink resources

Method used

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  • A csi reporting method and terminal equipment
  • A csi reporting method and terminal equipment
  • A csi reporting method and terminal equipment

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Embodiment Construction

[0068] The application will be described in further detail below in conjunction with the accompanying drawings.

[0069]Various aspects are described herein in connection with terminals and / or base stations. A terminal refers to a device that provides voice and / or data connectivity to a user, including a wireless terminal or a wired terminal. The wireless terminal may be a handheld device with a wireless connection function, or other processing device connected to a wireless modem, and a mobile terminal that communicates with one or more core networks via a wireless access network. Wireless terminals may be, for example, mobile telephones (or "cellular" telephones) and computers with mobile terminals. As another example, the wireless terminal may also be a portable, pocket, hand-held, computer built-in or vehicle-mounted mobile device. For another example, the wireless terminal may be a mobile station (mobile station), an access point (access point), or a part of a user equi...

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Abstract

A CSI reporting method and a terminal device, the method comprising: a terminal device receiving a number M of channel state information (CSI) reporting configurations and first CSI-RS resource configurations related to each CSI reporting configuration issued by a base station, and first signaling; for a first CSI-RS resource related to any one CSI reporting configuration, the terminal device determining a second CSI-RS resource corresponding to the CSI reporting configuration according to the first signaling; the terminal device determining a priority sequence of the M CSI reporting configurations according to the first CSI-RS resource and the second CSI-RS resource corresponding to each CSI reporting configuration; the terminal device sending a CSI report to the base station according to the priority sequence. The present method resolves incompleteness in CSI reports reported by a current terminal device, limiting a base station scheduling a downlink resource for a UE, and lowering downlink resource utilization.

Description

technical field [0001] The present application relates to the field of information technology, and in particular to a method for reporting CSI and a terminal device. Background technique [0002] Wireless channel conditions are usually constantly changing, for example, UE moves from an area with good channel conditions to an area with poor channel conditions; or UE moves on a street with tall buildings on both sides, then the street along the direction of signal propagation The signal will increase, while on the street perpendicular to the direction of propagation the signal will decrease. In order to better adapt to changes in the wireless channel, the base station sends a channel state information reference signal (channel state information-RS, CSI-RS) to the UE, and each CSI-RS will be carried on a specific time-frequency resource, that is, CSI-RS RS resource (CSI-RS resource). The UE can report the channel state to the base station through channel state information (Ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/02H04W24/10H04W72/12
CPCH04W24/02H04W24/10H04W28/00H04W72/12
Inventor 刘显达刘鹍鹏李雪茹
Owner HUAWEI TECH CO LTD