Method for reducing the radiation load by a mobile radio terminal and a mobile radio terminal

A mobile wireless and mobile base station technology, applied in the directions of antennas, antenna parts, antenna supports/installation devices, etc., which can solve the problems of reducing total radiated power and affecting calibration, etc.

Inactive Publication Date: 2005-02-09
INFINEON TECH AG
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The German Open Specification DE 101 23 107 A1 discloses a mobile phone using a directional antenna whose main lobe can be calibrated to a fixed base station by measuring the received power direction, therefore, the total radiated power can be reduced by directional emission, however, in this method, interference effects can adversely affect the optimal antenna alignment due to the directional power measurement at the position of the fixed base station

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 reducing the radiation load by a mobile radio terminal and a mobile radio terminal
  • Method for reducing the radiation load by a mobile radio terminal and a mobile radio terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] According to the block diagram illustrated in Figure 1, a device according to the invention and a design based on a first exemplary embodiment are described as follows: An antenna 1 with controllable directivity characteristics, which is is bidirectionally electrically connected to an amplifier block (amplifierblock) 2, and the amplifier block 2 itself is bidirectionally connected to a wireless radio frequency transmitter / receiver circuit 3, which is also called an RF transceiver (RF -TRX), the RF transceiver 3 is also bidirectionally connected to a baseband processor 4 (BB processor), and the output variable from this processor is the bit error rate 5 (BER) of the received signal and the field strength 6 (RF signal), and these variables are supplied as input variables to an evaluation unit 7, the output of which is connected to an antenna adjustment device 8, which then supplies A control signal is sent to a control input terminal of the controllable antenna 1 .

[00...

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

In a method for alignment of an antenna (1) with an adjustable directional characteristic in a mobile station in a mobile radio system, the alignment process is based on determination of two variables as a function of the direction, with the first variable(6) being characteristic of the signal strength and the second variable (5)being characteristic of the signal quality , and their evaluation (7). Furthermore, it is possible to make use of position information and alignment information relating inter alia to satellite-based navigation systems, and to take account of the alignment of the user.

Description

technical field [0001] The invention relates to a method and a device for calibrating an antenna with an adjustable directivity characteristic in a mobile base station of a mobile radio system. Background technique [0002] According to the selected power level required, the mobile phone system will transmit through the transmission antenna up to 2W transmission power level, especially at the edge of the supply area of ​​a radio cell, or when the transmission system is interfered by multipath propagation , the network system management of the mobile phone will often select the highest power level for setting up and maintaining the connection. [0003] Unidirectional emissions can be detected by mobile telephones if the antenna is in the form of a (shortened) monopole antenna suitable for external connection to the telephone, and if there is no interference from the environment in the immediate vicinity of the antenna. Achievement, that is, emission in all directions. Howev...

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): H01Q1/12
CPCH01Q1/1257
Inventor J·芬克R·克龙伯格
Owner INFINEON TECH AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap