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

Beam division multiple access system and method for mobile communication system

A mobile communication system, beam division multiple access technology, applied in the field of beam division multiple access system, can solve the problems that the base station cannot receive signals at the same time, and it is difficult to adaptively change the antenna beam direction, so as to solve the internal cellular interference and maximize the radiation efficiency to solve the effect of performance degradation

Inactive Publication Date: 2009-09-23
KOREA ADVANCED INST OF SCI & TECH
View PDF0 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem with this space division method. Due to the characteristics of the parabolic antenna, the base station cannot receive signals from multiple directions at the same time, and it is difficult to adaptively change the beam direction of the antenna.

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
  • Beam division multiple access system and method for mobile communication system
  • Beam division multiple access system and method for mobile communication system
  • Beam division multiple access system and method for mobile communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] A beam division multiple access system and method for a mobile communication system according to a preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

[0029] An embodiment of the present invention proposes a method for increasing system capacity by utilizing location information of a mobile station in a mobile communication system, which is called "Beam Division Multiple Access" (Beam Division Multiple Access; hereinafter referred to as BDMA). The BDMA technology of the invention divides the antenna beam according to the position of the mobile station to realize multiple access of the mobile station, thereby greatly improving the capacity of the system.

[0030] BDMA can be embodied by pointing a beam pattern at a specific location using a phasearray antenna to generate beams through beam forming. Mobile stations sharing the same beam achieve multiple access by using common multiple access techniques such ...

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 present invention is related to a beam division multiple access system and a method thereof. The base station according to the present invention comprises a initial mobile station information receiver for receiving initial mobile station information that a mobile station omnidirectionally transmits in an initial communication step, a mobile station location and speed detector for detecting a location and a moving speed of the mobile station from the initial mobile station information, a downlink beam generator for generating a downlink beam based on the location and the moving speed of the mobile station transferred from the mobile station location and speed detector, and adjusting at least one of a width and a direction of each the downlink beam, and a downlink beam transmitter for transmitting the downlink beam generated by the downlink beam generator to the mobile station through a phase array antenna.

Description

technical field [0001] The present invention relates to the multiple access technology of the mobile communication system, in particular to a beam division multiple access system and its method, which simultaneously adopts beam forming technology and multiple beam forming modes in a cell to allow multiple access. Background technique [0002] In a mobile communication system, it is necessary to use limited frequency and time to realize communication. For this reason, a multiple access technology is required. Examples of typical multiple access technologies developed to the present include frequency division multiple access (Frequency Division Multiple Access; hereinafter referred to as "FDMA"), time division multiple access (Time Division Multiple Access; hereinafter referred to as "TDMA"), code division multiple access Access (Code Division Multiple Access; hereinafter referred to as "CDMA"), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Mult...

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): H04B7/04
CPCH04B7/0697H04B7/0695H04B7/088H04W64/006H04B7/0817
Inventor 赵东浩李雄燮曺唔铉李浩员柳希政吴泳锡李勇勋
Owner KOREA ADVANCED INST 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