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Intermittent calibrator

A calibration device and intermittent technology, applied in the directions of space transmit diversity, communication between multiple stations, network planning, etc., can solve problems such as deviation and difficulty in communication with the base station device 10

Inactive Publication Date: 2002-07-10
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the received signal of the base station device 10 may become a signal with continuous deviations over a long period of time, making communication between the base station device 10 and the mobile station device 20 difficult.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] figure 2 A block diagram showing the structure of a communication system using the intermittent calibration device according to Embodiment 1 of the present invention. exist figure 2 In the figure, it is shown that the base station device 101 equipped with the intermittent calibration device of this embodiment performs CDMA wireless communication with the mobile station device 110, and the wireless signal generator for calibration (hereinafter referred to as 'CAL signal generator') 120 communicates with the base station device The device 101 transmits the status of a wireless signal for calibration (hereinafter referred to as a 'CAL signal'). Here, for simplicity of description, it is assumed that there is one mobile station device performing wireless communication with the base station device 101 , but the number of mobile station devices is not limited.

[0030] First, normal communication performed between the mobile station device 110 and the base station device ...

Embodiment 2

[0050] In this embodiment, a case will be described in which interleaving is used to further suppress the influence of interference caused by the CAL signal on each communication terminal apparatus. Below, refer to Figure 4 The intermittent calibration device of this embodiment will be described.

[0051] Figure 4 A block diagram showing the structure of a communication system using the intermittent calibration device according to Embodiment 2 of the present invention. for Figure 4 In and embodiment 1 ( figure 2 ) with the same structure as figure 2 The same reference numerals are used, and detailed descriptions thereof are omitted.

[0052] The basic structure of the CAL signal generator 320 is the same as that of the CAL signal generator 120 in the first embodiment. The difference between the CAL signal generator 320 and the CAL signal generator 120 lies in the following aspects. Figure 5 A schematic diagram showing an example of transmission timing of a CAL sig...

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Abstract

A base station (101) receives a communication signal subjected to spectrum spreading with a spreading code unique to the signal and transmitted from a mobile station unit (110), and CAL signals each subjected to spectrum spreading with a spreading code unique to the CAL signal, transmitted from a CAL radio signal generator (120) for a predetermined time for each unit frame, and multiplexed in the same frequency band. A / D convering / despreading sections (106, 107) extract the communication signal and the CAL signal from the received signal. A calibrating section (108) performs calibration using the CAL signals parallel with communication using the communication signal. An array synthesizing / signal processing section (109) demodulates the communication signal using the calibration results.

Description

technical field [0001] The present invention relates to a communication device for a CDMA mobile communication system, and more particularly to a communication device for performing calibration. Background technique [0002] Conventionally, in a wireless mobile communication system, a communication device including an array antenna is used. A communication device including the array antenna arranges a plurality of antennas in a spatially dispersed manner, and controls the directivity of a received signal based on information received by each of the antennas. Below, refer to figure 1 , a conventional communication device including an array antenna is described by taking the case where the communication device is mounted on a base station device as an example. [0003] figure 1 A diagram showing the configuration of a base station device, which is a conventional communication device including an array antenna, and the status of a radio communication ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q3/26H04B7/08H04B7/26H04J13/00H04W16/28H04W24/00H04W88/08
CPCH04B17/0062H04B1/707H04J2013/0037H04B17/21H04B2201/70701
Inventor 星野正幸宫和行平松胜彦
Owner PANASONIC CORP