Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Channel state information feedback method and equipment thereof

A technology of channel state information and state information, which is applied in the direction of preventing/detecting errors through diversity reception, and can solve the problem that the user terminal cannot feed back channel state information to the transmitting node.

Active Publication Date: 2014-08-27
HONOR DEVICE CO LTD
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a channel state information feedback method and device, which solves the problem that in a multi-antenna transceiver system, when the antenna of the transmitting node is deployed as a planar antenna array, the user terminal cannot feed back the downlink channel state information to the transmitting node The problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Channel state information feedback method and equipment thereof
  • Channel state information feedback method and equipment thereof
  • Channel state information feedback method and equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0083] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0084] The embodiments of the present invention are applied to a multi-antenna transmitting node sending downlink data to a multi-antenna UE through an air interface. The UE receiver performs downlink CSI measurement on the reference signal, and after the measurement is completed, the UE feeds back the measured downlink CSI information to the transmitting node through the uplink channel. It is mainly applied to when the antenna of the transmitting node is depl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention provides a channel state information feedback method and equipment thereof and relates to the field of a wireless communication system. According to the invention, the problem that a user terminal cannot feed downlink channel state information back to an emission node when an antenna of the emission node is configured to a planar antenna array in a multi-antenna transmit-receive system is solved. The method specifically contains the following steps: the user terminal US sends rank indication (RI) information and precoding type indication (PTI) information to the emission node, wherein antenna configuration of the emission node contains a planar array antenna; and precoding indication PMI information and channel quality indication (CQI) information in a first antenna direction and / or second antenna direction are sent to the emission node, wherein the first antenna direction and the second antenna direction comprise but are not limited to a horizontal direction and a vertical direction of the planar array antenna. The method provided by the invention is applied to information feedback.

Description

technical field [0001] The present invention relates to the field of wireless communication systems, in particular to a channel state information feedback method and device Background technique [0002] In a new-generation multi-antenna wireless communication system, such as a Long Term Evolution (LTE for short) system, a multiple input output (Multiple Input Multiple Output, MIMO for short) technology is a widely used technology. The key of MIMO technology is that multi-antenna transmitters perform spatial multiplexing or diversity transmission for multi-antenna receivers. Diversity transmission can improve the signal-to-noise ratio of the signal received by the receiver, and multiplexing can increase the number of available spatial parallel layers (number of layers), thereby increasing the capacity of the channel. In the two multi-antenna technology of diversity and multiplexing, it is not necessary to further improve the signal-to-noise ratio of the received signal under...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L1/06
Inventor 黎超
Owner HONOR DEVICE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com