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

Method for identifying interfered mobile terminals and methods for avoiding interference

A mobile terminal and identification method technology, applied in wireless communication, electrical components, network planning, etc., can solve the problems of poor throughput performance and co-frequency interference of mobile terminals in macro cells, and achieve the effect of improving throughput performance and avoiding interference

Inactive Publication Date: 2011-08-03
HUAZHONG UNIV OF SCI & TECH
View PDF5 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a home / microcell base station communicates with its home / microcell mobile terminals, it will cause a lot of co-channel interference to the surrounding macro cell mobile terminals, and the throughput performance of the interfered macro cell mobile terminals is very poor
Therefore, how to identify interfered macro cell mobile terminals around home / femtocell base stations and how to avoid them from being interfered is still a challenging problem without reducing the spectrum utilization efficiency and the overall system capacity

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 identifying interfered mobile terminals and methods for avoiding interference
  • Method for identifying interfered mobile terminals and methods for avoiding interference
  • Method for identifying interfered mobile terminals and methods for avoiding interference

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention is described in more detail below by means of examples, but the following examples are only illustrative, and the protection scope of the present invention is not limited by these examples.

[0023] Such as figure 1 As shown, the method for identifying an interfered mobile terminal specifically includes the following steps:

[0024] Step 1 In each system frame, the home / femtocell base station senses the uplink spectrum to obtain the usage of uplink physical resource blocks.

[0025] The 3GPP LTE wireless cellular network consists of several cells, and each cell has a macro base station, several home / microcell base stations, several macrocell mobile terminals and several home / microcell mobile terminals. In the 3GPP LTE system, a physical resource block is defined as a unit of air interface physical resource allocation. One physical resource block is a physical resource with a frequency domain width of 180 kHz and a time length of 0.5 ms (one time ...

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 belongs to the technical field of wireless communication, and relates to a method for identifying interfered mobile terminals and methods for avoiding interference. In each system frame, a home / micro-cellular base station senses an uplink frequency spectrum to obtain an uplink physical resource block usage pattern; the home / micro-cellular base station transmits a signaling to a service macro base station via an X2 interface or an air interface, wherein the signaling comprises the uplink physical resource block usage pattern and a detected system wireless frame number; and the service macro base station searches for a history physical resource allocation database, and identifies macro cell mobile terminals using uplink physical resource blocks when the system wireless frame number is n, namely the interfered macro cell mobile terminals by comparison. The invention also provides two methods for avoiding the interference based on the identification method. By the method, the interfered macro cell mobile terminals nearby the home / micro-cellular base station can be identified in case of not reducing the frequency spectrum utilization ratio and the total system capacity, and the macro cell mobile terminals can be effectively prevented from being interfered so as to improve the throughput performance of the macro cell mobile terminals.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a method for identifying a mobile terminal interfered with by a home / microcell base station, and two interference avoidance methods based on the identification method. Background technique [0002] In a 3GPP Long Term Evolution (LTE for short) system, a macro base station and a home / femtocell base station in the same area use the same spectrum resource to communicate with their respective mobile terminals. A mobile terminal served by a macro base station is called a macro cell mobile terminal, and a mobile terminal served by a home / microcell base station is called a home / microcell mobile terminal. When a home / microcell base station communicates with its home / microcell mobile terminals, it will cause a lot of co-channel interference to the surrounding macrocell mobile terminals, and the throughput performance of the interfered macrocell mobile terminals ...

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): H04W16/14H04W72/04
Inventor 屈代明刘路江涛
Owner HUAZHONG UNIV OF SCI & TECH
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