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Method and apparatus for reporting channel state information in wireless communication system

A technology of wireless communication system and state information, applied in radio transmission system, diversity/multi-antenna system, transmission system, etc., can solve problems such as resource shortage

Active Publication Date: 2021-03-16
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coverage of mobile communication systems has been extended to data services as well as voice services, and at present, the explosive growth of services has caused a shortage of resources, and since users expect relatively high-speed services, advanced mobile communication systems are required

Method used

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  • Method and apparatus for reporting channel state information in wireless communication system
  • Method and apparatus for reporting channel state information in wireless communication system
  • Method and apparatus for reporting channel state information in wireless communication system

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no. 1 example

[0647] The remaining layers can be configured as in Equation 18 below.

[0648] [Equation 18]

[0649]

[0650] In the first embodiment 1, when R-X layers are configured by beam selection, a method for expressing one layer will be described as an example.

[0651] In the case of the first embodiment, for each polarization a different DFT beam corresponding to the WB PMI index is selected (b k ≠b k′ ), and corresponds to one polarization as QPSK (2 bits) or 8-PSK (3 bits) and SB direction as in-phase information (φ k ) of 1 bit {1, j} may be reported to the base station.

[0652] k represents the kth layer, and X

[0653] [Equation 19]

[0654]

[0655] In Equation 18, In the first embodiment 1, a Walsh cover code can be used for one layer constituted by the same DFT beam, and orthogonality can be ensured, and it can be increased to a maximum of two layers.

[...

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Abstract

The present invention relates to a method, performed by a terminal, for reporting channel state information (CSI) in a wireless communication system and an apparatus therefor. According to the presentinvention, the terminal may receive first configuration information related to report of the CSI from a base station, and may report the CSI to the base station on the basis of the first configuration information. The first configuration information may include resource setting information related to a physical uplink shared channel (PUCCH) resource for reporting the CSI, and the PUCCH resource may be set per at least one uplink bandwidth part (UL BBW).

Description

technical field [0001] The present disclosure relates to a wireless communication system, and more particularly, to a method for transmitting and receiving channel state information in a wireless communication system and an apparatus thereof. Background technique [0002] Mobile communication systems have been developed to provide voice services while securing users' activities. However, the coverage of mobile communication systems has been extended to data services as well as voice services, and currently, the explosive growth of traffic has caused a shortage of resources, and since users expect relatively high-speed services, advanced mobile communication systems are required. [0003] The requirements of the next generation mobile communication system include accommodating explosive data traffic, a significant increase in transmission rate per user, accommodation of a significantly increased number of connected devices, very low end-to-end delay, and high energy efficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0456H04B7/06
CPCH04B7/0478H04B7/0486H04B7/063H04B7/0469H04L5/0048
Inventor 朴海旭金亨泰姜智源李相林
Owner LG ELECTRONICS INC
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