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Radio device, radio device calibration system, calibration method, and calibration program

一种无线装置、控制装置的技术，应用在无线电传输系统、分集/多天线系统、传输系统等方向，能够解决重新调整时钟等问题

Inactive Publication Date: 2005-07-13
HERA WIRELESS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even in such a fixed measurement format, a synchronization error of about several symbols may occur between the adaptive array wireless device 3010 and the measurement system due to, for example, long-term changes. In this case, readjustment may be necessary. clock problem

Method used

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  • Radio device, radio device calibration system, calibration method, and calibration program
  • Radio device, radio device calibration system, calibration method, and calibration program
  • Radio device, radio device calibration system, calibration method, and calibration program

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Embodiment Construction

[0095] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0096] figure 1 It is a schematic block diagram for explaining the configuration of the calibration system 1000 of the present invention for calibrating the adaptive array wireless device 1010 of the base station at the factory.

[0097] refer to figure 1 , the calibration system 1000 includes: an adaptive array wireless machine 1010 as a calibration object; a clock generator 1020 used to generate a reference clock during calibration; signal generators 1030.1 and 1030.2 used to generate modulated signals used during calibration; A spectrum analyzer 1040 for the power of the signal sent by the adaptive array wireless machine 1010; a power divider 1060 configured between the signal generators 1030.1 and 1030.2 and the adaptive array wireless machine 1010; used to selectively make the signal from the power distribution The node corresponding to the signal gen...

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Abstract

The adaptive array wireless machine (1010) has an A / D converter (1200.1-1200.n) for receiving signals from the array antenna and then converting the analog signal into a digital signal, and for receiving signals from the A / D converter ( 1200.1~1200.n) for downsampling the output of the downsampling device (1210.1~1210.n) and an adaptive array processing part ( 1250). The least squares error signal is output from the adaptive array processing unit (1250) corresponding to the timing adjustment signal to the downsampling device (1210.1-1210.n). Accordingly, it is possible to accurately perform the calibration process of the transmission directivity of the adaptive array wireless device.

Description

technical field [0001] The invention relates to a wireless device for adaptive array processing, a calibration system, a transmission directivity calibration method and a transmission directivity calibration program of the wireless device. Background technique [0002] In recent years, in the rapidly developing mobile communication system (for example, personal portable mobile phone system: hereinafter referred to as PHS), in order to improve the frequency utilization efficiency of radio waves, it is proposed that multiple A PDMA (Path Division Multiple Access: Path Division Multiple Access) method in which a wireless mobile terminal device (hereinafter referred to as a terminal) and a wireless base station device (hereinafter referred to as a base station) of a user implements spatial multiple access. [0003] This PDMA way adopts adaptive array technology. The so-called adaptive array processing is to calculate the weight vector composed of the reception coefficient (weig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q3/26H04B7/08H04B17/00
CPCH01Q3/267H04B7/0842H04B17/20H04B17/21
Inventor 土居义晴
Owner HERA WIRELESS
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