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

Channel estimation method and apparatus

A channel estimation and channel correlation matrix technology, which is applied in the field of channel estimation methods and devices, can solve problems such as large amount of calculation, high computational complexity, and difficulty in realizing channel estimation, and achieves the effect of reducing the complexity and the amount of computation.

Inactive Publication Date: 2011-05-04
HUAWEI TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the dimension of the filter coefficient vector is large, the computational complexity will be very high, and it is difficult to achieve channel estimation
[0020] Therefore, the current channel estimation method and device require a large amount of calculation

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 estimation method and apparatus
  • Channel estimation method and apparatus
  • Channel estimation method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0038] FIG. 1 is a schematic flowchart of a channel estimation method and device in an embodiment of the present invention. As shown in Figure 1, the method includes:

[0039] Step 101: Obtain an average signal-to-noise ratio constant.

[0040] In this step, the average signal-to-noise ratio constant is obtained according to the dynamic working range of the communication system or according to the modulation and coding mode and the corresponding working point of the communication system in the antenna mode. A uniform average signal-to-noise ratio constant may be set, or at least one average signal-to-noise ratio constant may be set, which is represented by an integer N here.

[0041] When N>1, according to the modulation and coding method and the conf...

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 discloses a channel estimation method and device. The method comprises: acquiring average signal-to-noise ratio constant, executing channel estimation by the average signal-to-noise ratio constant. The embodiment of the invention also discloses channel estimation device which comprises: acquiring module and channel estimation module. The embodiment can reduce calculated amount of channel estimation, thereby reduce complexity of implementing system.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a channel estimation method and device. Background technique [0002] In high-speed communication systems using multi-carrier transmission such as Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) and World Interoperability for Microwave Access (WiMAX, World Interoperability for MicrowaveAccess), the channel is often based on pilot frequency. Estimation, specifically: Insert some known pilot signals or training sequences at certain fixed positions of the signal at the transmitting end, and use these pilot signals or training sequences at the receiving end to perform channel estimation. Since each sub-carrier channel of a multi-carrier system has a two-dimensional structure of time domain and frequency domain, pilot symbols can be inserted in two directions of time axis and frequency axis at the same time when performing cha...

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 Patents(China)
IPC IPC(8): H04L25/03H04L27/34
Inventor 李航黄睿
Owner HUAWEI TECH 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