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

Method for determining pilot frequency pattern for mobile terminal in base station of multi-carrier MIMO system

A pilot pattern and mobile terminal technology, applied in modulation carrier systems, multi-frequency code systems, transmission systems, etc., can solve problems such as incompatibility, and achieve the effect of eliminating or reducing pilot signal interference

Active Publication Date: 2012-12-12
ALCATEL LUCENT SHANGHAI BELL CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] From this point of view, the existing pilot pattern design not only cannot solve the mutual interference of pilot signals between cells, but also is not suitable for the increasingly mature Co-MIMO technology. The industry urgently needs a novel method and device for determining pilot patterns to solve the above problems

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
  • Method for determining pilot frequency pattern for mobile terminal in base station of multi-carrier MIMO system
  • Method for determining pilot frequency pattern for mobile terminal in base station of multi-carrier MIMO system
  • Method for determining pilot frequency pattern for mobile terminal in base station of multi-carrier MIMO system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] figure 2 It is a schematic diagram of a cellular network commonly used in existing wireless communication networks. As shown in the figure, the respective cells (cells, ie, solid-line hexagons with Arabic numerals as geometric centers) under the jurisdiction of base station 1, base station 2, and base station 7 form network coverage. In existing wireless communication networks such as GSM networks, in order to increase network capacity, frequency multiplexing technology is often used. Frequency reuse technology means that wireless channels of the same carrier frequency cover different areas, and these areas using the same carrier frequency are separated by a certain distance to suppress co-channel interference within an acceptable range. In the early mobile communication systems, due to the lack of anti-same and adjacent frequency interference functions, a looser frequency reuse method was generally adopted. The more popular frequency reuse method is 7 / 21 multiplexing...

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

A technical solution of determining pilot signals for mobile terminals in the base station of a multi-carrier Multi-input Multi-output (MIMO) communication network is disclosed. The base station, according to the prestored multiplexing related information of multiple pilot patterns, determines pilot patterns for served mobile terminals from the multiple pilot patterns. According to the technical solution, the interference of pilot signals between neighbor cells can be eliminated or reduced based on the solution to the problem of the mutual interference of pilot signals among multiple users in the cell in the prior art.

Description

technical field [0001] The present invention relates to a method and a device for determining a pilot pattern in a communication network, in particular to a method and a device for determining a pilot pattern for a mobile terminal in a base station of a multi-carrier communication network based on MIMO (Multiple Input Multiple Output). Background technique [0002] As is well known to those skilled in the art, in broadband wireless communication networks, the problem of frequency selective fading caused by multipath effects is very prominent, and multi-carrier technology has significant advantages in overcoming the influence of multipath fading, so it is also in The field of broadband wireless communication has been more and more widely used. [0003] The basic principle of multi-carrier technology is to divide the high-rate information data into several low-speed information data through serial / parallel conversion, and then use an independent carrier modulation for each low...

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): H04L27/26H04L25/02
CPCH04L27/2613H04L5/0048H04L5/0023
Inventor 李栋吴克颖宋杨
Owner ALCATEL LUCENT SHANGHAI BELL 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