KR100679926B1 - Cable apparatus for mobile station testing device - Google Patents

Abstract

A cable apparatus for a mobile station testing device is provided to minimize influence due to an electromagnetic noise effect and improve accuracy of measurement by installing a shielding net. In a cable apparatus for a mobile station testing device, a USB(Universal Serial Bus) cable(450') connects a mobile station and a testing device by using USB communication. An audio cable(430') transmits an audio signal between the mobile station and the testing device. A non-standard connecting cable(460') performs serial communication between the testing device and the mobile station having a non-standard connecting terminal. An integrated covering(402') covers the USB cable(450'), the audio cable(430'), and the non-standard connecting cable(460') integrally. An electromagnetic wave shielding net(402a') is installed on a USB covering(456') which covers the USB cable(450'), an audio covering(437') which covers the audio cable(430'), and the integrated covering(402').

Description

Cable apparatus for mobile station testing equipment

1 is a schematic cross-sectional view of a cable apparatus for a conventional mobile station test equipment,

2 is a use state diagram of a cable device for mobile station test equipment of the present invention,

3 is a schematic cross-sectional view of the cable device for mobile station test equipment, taken along line A-A in FIG.

*** Explanation of symbols for the main parts of the drawing ***

100: mobile station, 400, 400 ': cable bundle,

402, 402 ': integral sheath,
402a ': shielded net,
430, 430 ': audio cable,

432: microphone jack plug, 434: speaker jack plug,

436: earphone jack plug, 437, 437 ': audio cladding,
437a ': shielded net,

delete

450, 450 ': USB cable, 452: connector on test equipment,

454: mobile station connector, 456, 456 ': USB sheath,

456a ': shielded net,

460, 460 ': non-standard connection cable, 462: connector on the test equipment,

464: mobile station connector

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable device for mobile station test equipment, and in particular, by appropriately shielding various cables connecting mobile stations to mobile station call quality test equipment for optimizing mobile communication networks. Cost cable device.

A mobile communication system is a mobile communication terminal called a mobile station, which is scattered in cell form throughout the country and wirelessly communicates with a base station connected to each other or another public telephone network or public data network and a wired dedicated communication network to transmit a voice or data signal. It is a system of giving and receiving. In this mobile communication system, test equipment for measuring the call quality while moving is proposed and actively used for the design of service coverage, the optimization and maintenance of the wireless network, and for this purpose, the mobile station and the test equipment are prepared in advance. It must be connected to the device.

1 is a schematic cross-sectional view of a cable apparatus for a conventional mobile station test equipment. As shown in FIG. 1, the cable bundle for the conventional mobile station test equipment is largely an audio cable 430 in which a line strip for a microphone signal, a line strip for a speaker signal, a line strip for grounding, and the like are enclosed by a single audio sheath 437. And a non-standard connection cable 460 comprising a USB cable 450 consisting of a pair of data line strips, a power line strip and a ground line strip, and various line strips for communication with a mobile station (not shown). It can be done by.

In the above-described configuration, the number of line strips inside the audio cable 430 may be appropriately added or subtracted according to the number of poles of the earphone jack plug, through which an audio signal in the form of an analog signal may be transmitted. And one end of the USB cable 450 may be connected to the standard connection terminal provided in the mobile station, the USB cable 450 is of a digital form according to various functions such as station number selection or call start and end desired by the test equipment It may be used to transmit control signals to the mobile station and to receive various types of information generated in the course of operation from the mobile station as digital data. The non-standard connection cable 460 is provided to connect to the mobile station when a non-standard connection terminal unique to the mobile station manufacturer is provided, not the standard connection terminal, and the digital signal is also transmitted through this. On the other hand, these audio cables 430, USB cables 450 and non-standard connection cables 470 are wrapped by a single integrated sheath 402 in consideration of simplicity or convenience of handling.

However, according to the cable apparatus for a mobile station test equipment as described above, even though the digital data is transmitted through the USB cable and the non-standard connection cable, the analog signal is transmitted through the audio cable. Since the shield of the audio cable or the USB cable is not shielded, there is a problem in that noise is introduced into the audio signal passing through the audio cable due to interference caused by signals passing through the non-standard connection cable or the USB cable.

In addition, USB cables deliver data at high speeds, so this interference to the audio cable is maximized. In addition, the integrated sheath that surrounds all of these cables is also not shielded, so external noise flows into the phone. There was a problem of poor nutrition to the measure of quality.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is provided by shielding the cover of the USB cable, the cover of the audio cable, and the outer cover of the mobile station test equipment using the USB cable and the audio cable or the non-standard connection cable. It is an object of the present invention to provide a cabling device for mobile station test equipment to minimize interference from noise sources or internal cables.

Cable apparatus for a mobile station test equipment of the present invention for achieving the above object is a USB cable for connecting the mobile station and the test equipment by USB communication; An audio cable for transferring an audio signal between the mobile station and the test equipment; A non-standard connection cable for serial communication between the mobile station having a non-standard connection terminal and the test equipment, and an integrated sheath covering all the cables, the USB sheath covering the USB cable, the audio cable It is made by installing an electromagnetic shielding network and an electromagnetic shielding covering the audio covering and the integrated covering.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the mobile station test equipment cable apparatus according to an embodiment of the present invention.

2 is a state diagram of use of the cable apparatus for mobile station test equipment of the present invention. As shown in FIG. 2, the cable apparatus for mobile station test equipment of the present invention includes a USB cable 450 ′, a mobile station 100, and a test equipment for largely connecting the mobile station 100 and the test equipment (not shown) by USB communication. And an audio cable 430 'that carries an audio signal therebetween and a non-standard connection cable 460' that is responsible for serial communication between the mobile station 100 having a non-standard connection terminal and the test equipment. Are wrapped together by a single integrated sheath 402 '.

In the above-described configuration, one end of the audio cable 430 'is provided with an earphone jack plug 436 inserted into the earphone jack of the mobile station 100, and the other end is connected to the microphone jack of the test equipment (not shown) The plug 432 and a speaker jack plug 434 connected to the speaker jack (not shown) are provided. One end of the USB cable 450 'is provided with a test equipment side connector 452 connected to, for example, a USB port of the test equipment, and the other end of the mobile station connector 454 connected to a standard connection terminal of the mobile station 100. ) Is installed. One end of the non-standard connection cable 460 ′ is also provided with a test equipment side connector 462 connected to the corresponding port of the test equipment, and the other end of the mobile station side connector 464 connected with the non-standard connection terminal of the mobile station 100. Is installed.

3 is a schematic cross-sectional view of the cable device for mobile station test equipment, taken along line A-A in FIG. As shown in Fig. 3, the cable bundle for the mobile station test equipment of the present invention is largely an audio cable in which a line strip for a microphone signal, a line strip for a speaker signal, a line strip for grounding, and the like are enclosed by a single audio sheath 437 '. (430 '), a pair of data line strips, power line strips and ground line strips, etc., wrapped by a single USB sheath 456' to communicate with the USB cable 450 'and the mobile station 100 It can be made by including a non-standard connection cable 460 'consisting of a variety of line strips required.

In the above-described configuration, the number of line strips inside the audio cable 430 'may be appropriately added or subtracted according to the number of poles of the earphone jack plug 436, through which an audio signal in the form of an analog signal is transmitted. Could be. And one end of the USB cable 450 'may be connected to the standard connection terminal provided in the mobile station 100, such USB cable 450' is a variety of functions such as station number selection or call start and end desired by the test equipment The control signal of the digital form according to the present invention to the mobile station 100, and may be used to receive a variety of information generated in the operation process from the mobile station 100 as digital data. The non-standard connection cable 460 ′ is provided to connect to the mobile station 100 when a non-standard connection terminal unique to the mobile station manufacturer is provided instead of the standard connection terminal, and thus digital data is transmitted.

On the other hand, these audio cables 430 ', USB cable 450' and non-standard connection cable 460 'are enclosed by a single integrated sheath 402' in consideration of simplicity or convenience of handling. Furthermore, in the present invention, a shield (shield) made of a metal wire inside the USB sheath 456 'to prevent the USB cable 450' inside the integrated sheath 402 'from affecting the audio cable 430'. 456a ') is being installed. Furthermore, the digital signal through the non-standard connection cable 460 'may affect the audio cable 430'. To prevent this, a shielding (shield) network made of metal wires is provided inside the audio sheath 437 '. 437a 'is provided. Furthermore, a shielding (shield) network 402a 'made of metal wires is also provided inside the integrated sheath 402' to ensure electromagnetic shielding for the USB cable 450 'and the audio cable 430'. It is desirable to.

According to the present invention as described above, the electromagnetic wave shielding network 437a 'is installed in the audio shielding 437' of the audio cable 430 'wrapped inside the integrated shielding body 402' provided with the electromagnetic shielding network. By doing so, it is possible to minimize the influence of the audio signal by the electromagnetic waves emitted from the built-in USB cable 450 'and the non-standard connection cable 460', and furthermore, the USB sheath 456 of the USB cable 450 '. Also, by installing the electronic shielding network 456a ', it is possible to minimize the digital control signal through the electromagnetic wave radiated from the non-standard connection cable 460'.

The cable apparatus for mobile station test equipment of the present invention is not limited to the above-described embodiments, and can be variously modified and implemented within the range permitted by the technical idea of the present invention.

According to the cable apparatus for mobile station test equipment of the present invention as described above, by installing a shielding network in the integrated sheath, the audio sheath and the USB sheath of the cable bundle, each cable is caused by electromagnetic noise introduced from the outside or the inside. The affected phenomenon can be minimized, thereby improving the accuracy of the measurement.

Claims (1)

A USB cable for connecting the mobile station and the test equipment by USB communication; An audio cable for transferring an audio signal between the mobile station and the test equipment; A non-standard connection cable for serial communication between the mobile station having the non-standard connection terminal and the test equipment; and It consists of an integrated sheath that wraps all the cables together, And a USB sheath covering the USB cable, an audio sheath surrounding the audio cable, and an electromagnetic shielding network installed on the integrated sheath.

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