Multi-cell channel estimation method and device

A channel estimation, multi-cell technology, applied in electrical components, transmission systems, etc., can solve the problems of inability to calculate the channel estimation results of neighboring cells, and inability to accurately estimate the channel estimation results, so as to improve system capacity and throughput. The effect of improving performance

Active Publication Date: 2010-06-23
DATANG MOBILE COMM EQUIP CO LTD
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the prior art considers Only the signal of this cell is included, and the existing interference is not considered. Therefore, the existing technology cannot accurately estimate the channel estimation results of this cell, and cannot calculate the channel estimation results of neighboring cells.

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
  • Multi-cell channel estimation method and device
  • Multi-cell channel estimation method and device
  • Multi-cell channel estimation method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Embodiments of the present invention provide a multi-cell channel estimation method and device.

[0027] In order to enable those skilled in the art to better understand the solution of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation manners.

[0028] Taking the channel estimation method in the TD-SCDMA system as an example, the mathematical principle of the present invention will be described in detail below.

[0029] It is assumed that the system adopts the same-frequency networking scheme and has achieved synchronization. It is also assumed that an array antenna is equipped at the receiving end (such as a user terminal or a base station), and the receiving end knows the usage of each user window (ie Midamble code) of the current cell and the neighboring cell. The data symbols are agreed as follows:

[0030] U The number of multi-cells with the ...

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 relates to a multi-cell channel estimation method and a device. The embodiment of the multi-cell channel estimation method comprises the steps of obtaining a pilot training sequence of all users of a local cell and neighbor cells, and using the obtained pilot training sequence to construct a matrix; utilizing the pilot training matrix for calculating channel estimation results; and separating the channel estimation results of all users of all cells which correspond to a receiving antenna from the channel estimation results. The utilization of the invention can accurately calculate the channel estimation of the local call, calculate the channel estimation results of the neighbor cells, further effectively improve the channel estimation performance and improve the capacity andthe throughput of a system.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a multi-cell channel estimation method and device. Background technique [0002] In many communication systems, in order to improve transmission reliability, it is necessary to obtain the channel impulse response through the channel during signal transmission, that is, channel estimation. For example, in a TD-SCDMA system, in order to realize joint detection, beamforming and some measurement processes, the channel estimation process is essential. [0003] In many systems, channel estimation is often implemented through training sequences (such as midamble codes), which can suppress noise and interference in a targeted manner, thereby improving data detection performance. However, the training sequence used for channel estimation is also affected by noise and interference, which makes the channel estimation inaccurate. In particular, if the same-frequency ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/707
Inventor 吴柯维孙长果
Owner DATANG MOBILE COMM EQUIP CO LTD
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