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

Antenna calibration method and device

A calibration method and antenna technology, applied in the directions of diversity/multi-antenna system, space transmit diversity, etc., can solve the problems of each channel error of coupling network and multi-channel radio frequency channel error, and achieve the effect of simple implementation and small modification.

Active Publication Date: 2011-09-21
DATANG MOBILE COMM EQUIP CO LTD
View PDF3 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0049] Therefore, when the calibration noise can be ignored, the error of each channel of the coupling network is the main reason for the error of the multi-channel RF channel after calibration.

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
  • Antenna calibration method and device
  • Antenna calibration method and device
  • Antenna calibration method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0076] In order to achieve the purpose of the present invention, the present invention discloses a method for antenna transmission calibration, figure 2 Shown is a block flow diagram of an antenna transmission calibration method, the method comprising the following steps:

[0077] S201: The baseband signal processor sends a calibration sequence through a transmitting radio frequency channel, the calibration sequence reaches the calibration channel through a receiving coupling network, and the calibration signal processor receives the ca...

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 an antenna transmission calibration method, which comprises that: a baseband signal processor transmits a calibration sequence by a transmission radio frequency channel, and a calibration signal processor receives the calibration sequence by a calibration channel; the calibration signal processor judges whether errors of coupling networks are required to be compensated or not according to the accuracy of a receiving coupling network, calculates a calibration coefficient by the received calibration sequence, and transmits the calculated calibration coefficient to the baseband signal processor; and the baseband signal processor performs coefficient compensation according to the calibration coefficient. The embodiment of the invention also discloses an antenna transmission calibration device, which comprises the baseband signal processor, the calibration signal processor, a coupling signal processor and a coupling data memory. The embodiment of the invention can take the errors among channels of the coupling networks into account in calibration, perform the error compensation on the coupling networks, and effectively improve the antenna calibration accuracy, thereby improving beamforming performance.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular, the present invention relates to a method and device for antenna calibration. Background technique [0002] Mobile and broadband have become the development direction of modern communication technology. How to eliminate the influence of co-channel interference, multiple access interference and multipath fading has become the main factor that people consider when improving the performance of wireless mobile communication systems. In recent years, smart antenna technology has become a research hotspot in the field of mobile communication. [0003] Smart antenna technology brings great advantages to mobile communication systems. For example, when using smart antennas, other baseband digital signal processing technologies, such as joint detection, interference cancellation, etc., are used in combination. The sum of the received signals, if the maximum power combining algor...

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): H04B7/06
Inventor 蒋峥孙长果于洋
Owner DATANG MOBILE COMM EQUIP 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