LTE channel measurement and feedback method

A technology for channel measurement and measurement information, applied in the field of LTE channel measurement and feedback, can solve the problem of large amount of calculation of the terminal, and achieve the effect of reducing the amount of calculation, the workload of calculation, and the requirements.

Inactive Publication Date: 2012-07-04
沈阳市联盛科技有限公司
View PDF5 Cites 53 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The present invention provides an LTE channel measurement and feedback method, which solves 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
  • LTE channel measurement and feedback method
  • LTE channel measurement and feedback method
  • LTE channel measurement and feedback method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0058] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0059] figure 2 It is a flowchart of an LTE channel measurement and feedback method in the present invention, such as figure 2 As shown,

[0060] Step 201: Step 1: The base station configures channel state information measurement pilot CSI-RS resources for each signal transmission point in a CoMP, and sends the configuration information of the CSI-RS resources to the terminal;

[0061] Step 202: According to the configuration information of the CSI-RS resource, the terminal performs a channel measurement operation on each signal transmission point in CoMP, and sorts according to the obtained signal-to-noise ratio; and transmits signals whose signal-to-noise ratio meets preset conditions Point feedback to the base station;

[0062] Step 203: The b...

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 invention discloses an LTE (Long Term Evolution) channel measurement and feedback method suitable for the CoMP (Coordinated Multi-Point) working mode. A base station configures CSI-RS resources for signal transmission points in the CoMP; a terminal performs channel measurement on the signal transmission points according to the CSI-RS resources, and feed the signal transmission points of which the signal-to-noise ratio satisfies the preset condition back to the base station; the base station selects the signal transmission points according to the feedback information of the terminal and the given working information of the base station side, and sets one or more measurement assumptions and corresponding CSI-RS resources; the terminal performs further channel measurement and feeds back the measurement information according to the measurement assumptions and the corresponding CSI-RS resources; and if the measurement information fed back by the terminal can not determine the resource dispatching mode, the terminal repeatedly performs measurement and feedback till the base station can determine the resource dispatching mode for resource dispatching. The method provided by the invention solves the problem in the prior art that the terminal has large calculated amount due to coexistence of various measurement assumptions.

Description

technical field [0001] The present invention relates to the field, in particular to an LTE channel measurement and feedback method. Background technique [0002] The Long Term Evolution (LTE, Long Term Evolution) project is an evolution of 3G, which improves and enhances the air access technology of 3G. Using OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multiple-Input Multiple-Out-put) as the only standards for its wireless network evolution. Under the 20MHz spectrum bandwidth, it can provide the peak rate of downlink 100Mbit / s and uplink 50Mbit / s. It improves the performance of cell edge users, increases cell capacity, and reduces system delay. [0003] In Rel 11, coordinated multi-point (CoMP, Coordinated multi-point) is a MIMO technology, through the cooperation of multiple signal transmission points, the original interference signal is changed into a signal that can help improve performance. As a branch of MIMO technology, CoMP has similarities with oth...

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): H04L1/00H04L5/00H04W72/04
Inventor 仲川卫瑞平周琳商志平常永宏
Owner 沈阳市联盛科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap