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Method, equipment, device and storage medium for measuring and reporting channel state information (CSI)

A technology of channel state information and measurement configuration, applied in the field of communication, can solve the problems of lack, data scheduling needs to be optimized, air interface data transmission rate decline, etc.

Active Publication Date: 2021-07-30
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the UE performs RRC connection recovery, RRC connection re-establishment, SCG addition, PSCell change, and BWP switch, the network device cannot immediately perform effective data scheduling due to the lack of CSI measurement results reported by the UE, so it needs to wait for the UE to complete CSI measurement and reporting. It will cause the air interface data transmission rate to drop
[0005] How to implement fast data scheduling on PSCell, PCell and BWP switch needs to be optimized

Method used

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  • Method, equipment, device and storage medium for measuring and reporting channel state information (CSI)
  • Method, equipment, device and storage medium for measuring and reporting channel state information (CSI)
  • Method, equipment, device and storage medium for measuring and reporting channel state information (CSI)

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0399] Example 1: After the terminal device receives the signaling or message sent by the base station to the terminal under the above 5 situations 1-5, it can perform CSI measurement and report according to the first measurement configuration. For example, after the terminal equipment receives the handover signaling sent by the base station, the RRC connection reestablishment message, the RRC connection restoration message, the first RRC reconfiguration message after the RRC connection reestablishment message, and the first RRC reconfiguration message after the RRC connection restoration message message, SCG synchronous reconfiguration message, dedicated signaling notifying the terminal device to perform BWP handover, and when the BWP deactivation timer expires, CSI measurement and reporting are performed according to the first measurement configuration.

example 2

[0400] Example 2: The terminal device activates the first measurement configuration when it reaches the preset subframe position where it starts to perform CSI measurement according to the first measurement configuration, and performs CSI measurement and reporting on the specified BWP according to the first measurement configuration.

[0401] In this embodiment of the present application, the preset position of the subframe where CSI measurement starts to be performed according to the first measurement configuration may be pre-configured in the terminal device. For example, the base station will determine to start to measure according to The position of the subframe for CSI measurement in the first measurement configuration is sent to the terminal device, and the terminal device saves the subframe in which CSI measurement is started according to the first measurement configuration after receiving the subframe position for starting CSI measurement according to the first measureme...

example 3

[0405] Example 3: When the terminal device receives the dedicated signaling sent by the network device, it performs CSI measurement and reporting according to the first measurement configuration on the specified BWP; where the dedicated signaling is used to instruct the terminal device to activate the first measurement configuration and start CSI For measurement, the dedicated signaling is RRC signaling, DCI signaling or MAC CE signaling.

[0406] The content included in the first measurement configuration is further introduced below.

[0407] The first measurement configuration includes at least one or more combinations of the following:

[0408] Configuration information of CSI measurement resources;

[0409] CSI reports configuration information;

[0410] Valid duration; wherein, the valid duration is used to indicate the duration during which the terminal device can perform CSI measurement and report according to the first measurement configuration; it is used to activat...

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PUM

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Abstract

The present application discloses a method and device for measuring and reporting channel state information (CSI), which are used to improve the utilization rate of wireless resources. Wherein, the channel state information CSI measurement and reporting method includes: the terminal device is on the specified part of the bandwidth BWP, and performs CSI measurement according to the first measurement configuration within the specified time to obtain the CSI measurement result; the terminal device is on the specified BWP Reporting the CSI measurement result to a network device; wherein, the terminal device performs CSI measurement according to a second measurement configuration outside the specified time.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular to a method and device for measuring and reporting channel state information (CSI). Background technique [0002] Obtaining channel state information (Channel State Information, CSI) through channel measurement is crucial to improving the transmission quality of wireless communication. [0003] In the Long Term Evolution (LTE) system, the bandwidth of the terminal device is consistent with the system bandwidth. When performing channel measurement, the terminal device uses the reference signal (RS) transmitted by the network device to access the cell. The CSI is obtained through measurement, and the obtained CSI is fed back to the network device. The network device then processes the transmitted signal based on the CSI and sends it to the terminal device. [0004] In the LTE system, the bandwidth of the terminal equipment is consistent with ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04B7/06H04W24/08H04W76/19
CPCH04W24/10H04B7/0626H04W24/08H04W76/19H04W72/0453H04W36/0094H04W72/542H04W36/00837H04W36/0058H04W36/0072H04W72/044H04W72/23
Inventor 许萌梁靖傅婧
Owner DATANG MOBILE COMM EQUIP CO LTD