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

Self-adaptive home base station power control method

A power control and femtocell technology, applied in power management, wireless communication, electrical components, etc., can solve the problems of not being able to fully utilize HeNB, difficulty adapting to interference suppression requirements, and performance limitations of small cells

Inactive Publication Date: 2012-07-04
UNIV OF ELECTRONIC SCI & TECH OF CHINA
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the research on the downlink interference suppression of non-CSG UEs outside the CSG list by the HeNB in ​​the micro cell working in the CSG mode focuses on the active interference control technology, that is, the HeNB uses a certain power control mechanism when it is powered on. Self-configured downlink transmit power is difficult to adapt to the interference suppression requirements in various scenarios, and the performance of the micro cell itself is greatly limited, and the technical characteristics of HeNB cannot be fully utilized

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
  • Self-adaptive home base station power control method
  • Self-adaptive home base station power control method
  • Self-adaptive home base station power control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Adaptive HeNB power control includes the following steps:

[0013] Step 1: After the HeNB is turned on, determine the maximum allowable transmit power and the minimum allowable transmit power, and use the maximum allowable transmit power to configure the initial transmit power;

[0014] Step 2: HeNB identifies whether the interference indication message has been received. The reception of the interference message can be realized by identifying the interference registration request sent by the interfered non-CSG UE or the uplink interference measurement information. If yes, go to step 2; if not, go to step 4;

[0015] Step 3: When the HeNB receives the interference indication message, it judges whether the timer T1 is running. If so, the HeNB maintains the current transmission power and restarts the timer T2; otherwise, the power is lowered by a specific step size Δ on the existing basis. down dB, restart timers T1 and T2, when the adjusted power is less than the minimu...

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 discloses a self-adaptive home base station power control method. Based on the high interference inhibition requirement on the CSGHeNB in an LTE heterogeneous network, interference on user non-CSGUE of a non-closed user group in the network can be reduced by adjusting the power of the HeNB in self-adaptive closed ring manner and performance loss of a micro cell can be reduced.

Description

technical field [0001] The invention belongs to the technical field of cross-layer interference suppression in a long-term evolution LTE heterogeneous network, and in particular relates to a power control method of a HeNB in ​​an LTE network. Background technique [0002] ITU has identified LTE-Advanced (including TD-LTE-Advanced) and 802.16m as the new generation of mobile communications (4G) international standards. As an evolution of LTE, LTE-Advanced allows operators to use new and wider frequency spectrum, providing higher data rate than 3G network, lower delay and flat IP architecture network. In order to further improve system performance at a lower cost, 3GPP has been committed to making improvements in various aspects within the LTE-Advanced framework, including higher-order MIMO technology, carrier aggregation technology and heterogeneous networks. Because in the enhanced 3G version and LTE network, the performance of the wireless link is already close to its theo...

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): H04W52/08H04W52/24H04W52/36
Inventor 熊文汇王振伟
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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