KR100290182B1 - Method and apparatus for checking speech path for wireless local loop system - Google Patents

Abstract

PURPOSE: A method and an apparatus for checking a speech path for a wireless local loop system are provided to check various sound data by enabling an operator to check a state of a relevant speech path through a speaker of a speech path checking device, and by enabling the operator to select and listen a recorded announcement broadcasting transmission message according to the operator's control command. CONSTITUTION: A speech path checking device is connected to a speech path of a cell controller(ST1). A main processor judges whether a recorded announcement broadcasting transmission message is received(ST2). In case that the message is received, the main processor drives and controls a recorded announcement device in a signal generator(ST3). The main processor judges whether channel data inputted from an operator are received(ST4). In case that the data are received, the main processor transmits the channel data to the speech path checking device(ST5). It is judged whether calling checking completion data are received(ST6). The main processor initializes an operation of the cell controller(ST7).

Description

Method for inspecting a channel for a wireless subscriber network system and apparatus therefor.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless local loop (WLL) system. More particularly, the present invention relates to a method for inspecting a call path for a wireless subscriber network system and an apparatus thereof, by which an audible sound can be confirmed. .

In general, in the case of a PSTN network or an Internet network, since the wired network is configured, in order to provide a communication service to a specific subscriber, it is necessary to combine the communication network and the subscriber through a wire. However, if the subscribers are located in a mountainous area or the like, combining the subscribers by wires will cause a great economic loss.

Therefore, recently, a so-called wireless subscriber network system for wirelessly coupling a specific subscriber to a wired network such as a PSTN network has been developed and spread.

1 is a block diagram showing the configuration of a general wireless subscriber network system currently commercialized.

In FIG. 1, reference numeral 1 denotes a subscriber access device for coupling a specific subscriber, which is capable of combining various communication terminals such as a telephone device 2 and a facsimile 3 and a personal computer 4, and also a part thereof. In the case of a subscriber access device, there is also a structure configured to connect an ISDN terminal.

In the drawing, reference numeral 5 denotes a base station which is coupled to the subscriber access device 1 by radio to provide a wireless communication line to the subscriber access device 1, which is connected to the subscriber access device 1 in a CDMA manner. To be combined. In addition, each base station 5 is able to accommodate a total of 80 channels, for example, to provide a communication channel to at least 64 subscriber access devices 1 simultaneously.

In the drawing, reference numeral 6 denotes a base station controller which performs a control process such as controlling a wireless subscriber network system and providing a communication channel to each subscriber access device, for example, 16 base stations (5 _{1 to} 5 _16). It is configured to accommodate). In addition, the base station controller 6 is coupled to the base station 5 through the E1 link and the LAPD protocol, and the PSTN network and the Internet through the WLL gateway 7 and the data communication matching device 8. It is coupled to the packet network.

In addition, in the wireless subscriber network system, one base station controller manages a plurality of base stations, and each base station allocates a channel to correspond to the number of subscribers that can be accommodated simultaneously. The channel to be made becomes limited.

That is, in the base station, data transmission and reception operations are performed through a sub high way (shw), and the sub highway (shw) is configured to divide and use the channel so as to correspond to the number of subscribers that can be simultaneously accommodated.

On the other hand, after the call is established by the subscriber in the call path within the base station controller, the established call is continuously maintained until the subscriber of the home country or another country performs the call cancellation request, and thus the abnormal state of the call path is frequently monitored.

However, in the conventional test method, since the call path is tested on the basis of predetermined test data stored in the memory, it is not only impossible to test by audible, but also difficult to test using various data.

Accordingly, the present invention has been made in view of the above circumstances, and connects the recording guide device provided in the signal generator provided in the base station controller of the wireless subscriber network system with the call path to be tested, the call path monitor device and the speaker. It is an object of the present invention to provide a method and apparatus for checking a call path for a wireless subscriber network system that can audibly verify whether or not a recording guide broadcast is normally transmitted and received on a specific channel of an arbitrary SHW.

1 is a system configuration diagram showing an overall configuration of a general wireless subscriber network system.

2 is a block diagram showing an internal configuration of a base station controller 60 according to an embodiment of the present invention.

Figure 3 is a block diagram showing the internal configuration of the inspection apparatus 100 in the call shown in FIG.

Fig. 4 is an operation flowchart for explaining the operation of the apparatus shown in Fig. 2;

5 is a block diagram showing the internal configuration of the apparatus for inspecting a call path according to a second embodiment of the present invention.

**** Brief description of the main parts of the drawing ****

60: base station controller, 61: base station connection unit,

62: transcoder, 63: time switch,

64: relay line matching device, 65: network synchronization unit,

66: signal generator, 67: main processor,

68: IPCU, 100: call path inspection device,

101: input buffer, 102: SHW / channel selector,

103: D / A converter, 104: speaker,

105: power supply unit.

According to a first aspect of the present invention for realizing the above object, a method for inspecting a call path for a wireless subscriber network system includes: a data storage step of storing data applied through SHW of a call path to be inspected; The SHW data selection step of outputting data stored and applied through the corresponding SHW stored in the data storage step based on the SHW information, and the data output from the SHW data selection step based on the inspection channel information applied by the inspector. And a channel data selection step of selecting data of a corresponding channel, and a data output step of analog-converting the data selected in the channel data selection step and outputting the same through a speaker.

In addition, according to the second aspect of the present invention for realizing the above object, the apparatus for inspecting a call path for a wireless subscriber network system is provided from an SHW / channel selecting means for selecting a SHW and channel information to be tested, and an SHW from a call path. And an input buffer for outputting data stored and applied from the SHW based on the SHW information applied from the SHW / channel selector, and based on channel information applied from the SHW / channel selector. D / A converting means for selecting and converting only the data of the corresponding channel inputted from the input buffer, a speaker for converting and outputting an analog signal applied from the D / A converting means into an audible sound, and the operation of the entire inspection apparatus using this call. Characterized in that configured to include a power supply for applying power for.

According to the present invention having the above-described configuration, the operator can not only inspect the call path based on the recording guidance message transmitted as an audible sound through the speaker of the call inspection device, the operator's control command By selecting and listening to the recording guide message according to, it is possible to perform a test on a variety of voice data.

In addition, it is possible to easily check a currency even on a different currency path.

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings.

2 is a block diagram showing an internal configuration of a base station controller 60 to which a call path inspection apparatus according to the present invention is applied.

In the figure, reference numeral 61 denotes a base station access unit for accessing a base station, which converts each channel input through the transcoder 62, which will be described later, into an E1 data type of 2.048 MHz, and transmits the same to the base station. The data input from the base station is transmitted to the transcoder 62 based on the predetermined control signal.

Further, reference numeral 62 denotes a transcoder which compresses / expands input data and removes echo of voice data, and 63 denotes data input from the transcoder 62 based on a predetermined control signal. To parallel / parallel conversion to switch to the relay line matching device 64 or the signal generator 66 to be described later, and parallel / serial conversion of data input from the relay line matching device to the transcoder 62, Or a time switching unit for transmitting to the signal generator 66.

Also, reference numeral 64 is a relay line matching device for accessing a subscriber network to be connected to a wireless subscriber network system, which is combined with a general switching network such as a public switched telephone network (PSTN) network or a data switching network such as an internet network. do.

On the other hand, reference numeral 65 denotes a clock signal based on data applied from the relay line matching device 64, and a network synchronizer 66 for applying the clock signal to the base station and the base station controller, 66 based on a predetermined control signal. It is a signal signaling unit that generates a busy signal, DTMF signal, etc., and sends a recording guide function.

Reference numeral 67 denotes a main processor for controlling the overall operation of the base station controller 60 based on a control command input from a base station operating apparatus (not shown), and reference numeral 68 denotes the main processor through an IPC channel. A processor interface IPCU (Inter Processor Communication Unit) for data transmission and reception between a processor 67 and a processor in each device of the base station controller 60.

In addition, reference numeral 100 denotes a call path inspection apparatus for inspecting the connected call path by sending out an audible sound transmitted and received through the connected call path.

On the other hand, Figure 3 is a block diagram showing the internal configuration of the communication path inspection apparatus 100 shown in FIG.

In the figure, reference numeral 101 denotes an input buffer for storing data inputted from the SHW in connection with the SHW on the call path, and 102 denotes an SHW / channel for selecting the corresponding SHW and channel based on the SHW and channel information applied from the main processor. The channel selector 103 selects the corresponding channel of the corresponding SHW applied from the input buffer 101 based on the SHW / channel information applied from the SHW / channel selector 102, and selects the selected channel of the selected SHW. D / A converter that converts PCM data into analog signals and outputs them.

Also, reference numeral 104 denotes a speaker for converting and outputting an analog signal applied from the D / A converter 103 into an audible sound, and 105 denotes a power supply unit for supplying power for the operation of the entire inspection apparatus in the present call. It converts AC voltage applied through ± 5V DC voltage and outputs it.

Next, the operation of the device having the above configuration will be described with reference to the operation flowchart shown in FIG.

First, when the call path inspection apparatus 100 is physically connected to the call path of the base station controller 6 (ST1), the data on the call path is transmitted through the SHW (Sub Highway) of the connected call path. ) Are all stored in the input buffer 101 inside.

Subsequently, the main processor 67 determines whether or not a recording announcement broadcast transmission message inputted for the test by the operator has been received (ST2). The processor 67 controls the recording guide device in the signal generator 66 to drive and transmit the recording guide message on the call path (ST3).

Subsequently, the main processor 67 determines whether the test SHW and channel data inputted for the test by the operator are received from the operator (ST4). If the result shows that the SHW and channel data are received by the operator, The processor 67 transmits the received SHW channel data to the test apparatus 100 through a call (ST5).

On the other hand, when the SHW and channel information is supplied from the main processor 67 to the SHW / channel selector 102 in the call path inspection apparatus 100, the SHW / channel selector 102 is input from the main processor 67. SHW information is sent to the input buffer 101. In addition, the input buffer 101 selects a corresponding SHW coupled with the input buffer 101 by using the SHW information received from the SHW / CH channel selector 102, and then selects D / A data applied from the selected SHW. It is sent to the converter 103.

In addition, the SHW / channel selector 102 transmits the channel information received from the main processor 67 to the D / A converter 103, and the D / A converter 103 applies it from the input buffer 101. By converting the PCM data of the corresponding channel only to the analog signal based on the channel information applied from the SHW / channel selector 102 to the analog signal, and sends to the speaker 104, for the particular channel of the specific SHW The check operation is performed by the call.

Thereafter, when the call inspection end data is received due to an operator's command or disconnection of the call path inspection apparatus 100 from the call path (ST6), the main processor 67 is the base station controller 60 for the call path inspection function. ) Is initialized (ST7).

That is, according to the embodiment, the control data is applied to the signal generating device to drive and control the recording guide device on the basis of the operator's call command by the operator of the call path tester, thereby recording on the call path of the base station controller. The announcement broadcast data is transmitted, the announcement broadcast data is input through the call path inspection device physically coupled to the call path to be examined, and the announcement broadcast data applied to the SHW and channel selected by the operator is converted into an analog signal. The speaker outputs the audio signal.

Therefore, the operator can check the call path based on the recording guidance message transmitted as an audible sound through the speaker of the call inspection device to the state of the corresponding call path.

In addition, by selecting and listening to the recording guide message according to the operator's control command, it is possible to perform a test on a variety of voice data.

However, in the first embodiment, there are the following problems.

That is, in the present wireless subscriber network system, a transcoder 62 for compressing and outputting an input PCM signal into an ADPCM signal and converting the input ADPCM signal into a PCM signal is provided. The PCM signal and the ADPCM signal are mixed in the communication path.

Therefore, in the first embodiment, only the inspection operation is performed by a call of a specific type of signal, for example, a PCM signal, so that the inspection operation cannot be performed on the communication path to which the ADPCM signal is transmitted in the present wireless subscriber network system. There is a problem.

Accordingly, in the second embodiment of the present invention, a method for inspecting a call path in a wireless subscriber network system which enables the inspection operation to be performed on any call path of the base station and the base station controller of the system regardless of the form of the signal on the call path. The object is to provide a device.

In addition, in the present wireless subscriber network system, the frame synchronization signal and the clock signal of each device are not provided identically, but the frame synchronization signal and the 16 MHz clock, the frame synchronization signal and the 4 MHz clock, the frame synchronization signal and Since three types of frame synchronization signals and clock signals of 2MHz clock are provided, the test path test method in a wireless subscriber network system capable of performing inspection operation by converting the frame synchronization signal and clock signal of a test channel into a predetermined format. And another object thereof.

Next, a second embodiment according to the present invention will be described with reference to the drawings.

FIG. 5 is a block diagram showing the internal structure of the call path connecting apparatus 200 according to the second embodiment of the present invention, and the same reference numerals are assigned to the parts performing the same functions as those shown in FIG. The detailed description is omitted.

In FIG. 5, reference numeral 201 denotes a SHW selector which receives SHW information applied from the main processor 67 and applies it to the input buffer 101, and 202 denotes a selected SHW applied from the input buffer 101. It is a data selector for selecting the output path based on the data status information applied from the main processor 67.

On the other hand, reference numeral 203 is a data conversion unit for converting the ADPCM data applied from the data conversion unit 202 into PCM data and outputting, and 204 is a D / A conversion unit (for channel information applied from the main processor 67). And a channel selector for converting and outputting the frame synchronization signal and the clock signal on the same path as the selected SHW to the specific frame synchronization signal and the clock signal based on the synchronization information applied from the main processor 67. As a result, the synchronization signal converted and outputted from the channel selector is used as an operation synchronization signal of the data converter 203 and the D / A converter 103.

Next, the operation of the communication path inspection apparatus 200 shown in FIG.

First, the inspector selects the channel to be tested in the system, authorizes the SHW, channel information, and synchronization information of the channel to the main processor through the operator terminal, and tests the test announcement data for the test. It will be controlled to send through the furnace.

In the above state, when the input terminal of the present passage test apparatus 200 is connected to the call passage to be examined, all the data applied from the SHW of the connected call passage are stored in the input buffer 101.

In addition, when the SHW information to be inspected from the main processor 67 is applied to the SHW selector 201, the SHW selector 201 selects the corresponding SHW based on the SHW information applied from the main processor 67. The SHW selection signal is applied to the input buffer 101. In the input buffer 101, only data applied from the corresponding SHW to the data selection unit 202 based on the SHW selection signal received from the SHW selection unit 201. Will be authorized.

The data selection unit 202 selects the output path of the data input based on the data status information applied from the main processor 67. For example, the status information on the PCM data is set to " 0 " In the case where the status information for the "1" is set, if the status information supplied from the main processor 67 is "0", the PCM data applied from the input buffer 101 is output to the D / A converter 103. When the state information applied from the main processor 67 is ″ 1 ″, the ADPCM data applied from the input buffer 101 is output to the data converter 203.

Thereafter, the data converter 203 converts the input ADPCM data into PCM data and outputs it to the D / A converter 103. In the D / A converter 103, channel information applied from the channel selector 204 is used. Based on this, only the data of the corresponding channel is converted into an analog signal and output to the speaker 104.

At this time, the channel information applied to the D / A converter 103 is the channel information to be applied from the main processor 67 to the channel selector 204, and the data converter 203 and the D / A converter 103 The frame synchronizing signal and the clock signal are also provided by the channel selector 204. The channel selecting unit 204 uses the frame synchronizing signal and the clock signal transmitted on the same path as the communication path to be tested. The frame synchronization signal and the clock signal, which are received through the main processor 67 and are input based on the synchronization information applied from the main processor 67, are converted into, for example, a 2 MHz frame synchronization signal and a clock signal.

In addition, the synchronization information applied from the main processor 67 to the channel selector 204 is a signal indicating the state of three types of frame synchronization signals and clock signals used in the present wireless subscriber network system, for example, two bits of information. The frame synchronization signal and the clock signal information of the currently input data are applied.

That is, according to the second embodiment of the present invention, in the wireless subscriber network system to which the present invention is applied, the speaker of the call inspection apparatus is freely selected by selecting a call path through which ADPCM data or PCM data is transmitted. It can be checked by the state of the audible sound output through.

On the other hand, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the technical gist of the present invention.

As described above, according to the present invention, the operator can not only inspect the state of the corresponding call path through the speaker of the call path inspection device, but also select and listen to the recording guidance message according to the operator's control command. The inspection can be performed on various voice data.

In addition, according to the present invention, it is possible to easily check a call even on a call path having a different form of data.

Claims (9)

A data storage step of storing data authorized through the SHW in the currency to be examined; A SHW data selection step of outputting data stored and authorized through the corresponding SHW stored in the data storage step based on the inspection SHW information authorized by the inspector; A channel data selection step of selecting data of a corresponding channel from data output in the SHW data selection step based on inspection channel information applied by an inspector; And a data output step of analog converting the data selected in the channel data selection step and outputting the data through a speaker. The method of claim 1, The data applied to the call path is a broadcast recording message applied from a wireless subscriber network system, and a test path test method in a wireless subscriber network system, characterized in that the examiner selectively tests various broadcast recording messages. The method of claim 1, A data selection step of selecting and outputting data stored and applied from the corresponding SHW stored in the data storage step based on the SHW data applied from the SHW selection step; A data output path setting step of setting an output path according to whether data applied from the data selection step is compressed or not; A data conversion step of decompressing the compressed data applied from the data output path setting step; And an analog signal conversion step of converting the data of the corresponding channel into an analog signal based on the inspection channel information applied by the inspector and outputting the analog signal to the speaker. The method of claim 3, wherein The data output path setting step selects an output path to perform an analog conversion step when the data applied from the data selection step is PCM data, and performs a data conversion step when the data applied from the data selection step is ADPCM data. And after performing, selecting an output path to perform an analog conversion step. SHW / channel selection means for selecting the SHW and channel information to be tested, An input buffer for storing data applied from the SHW to the call and outputting data stored and applied from the corresponding SHW based on the SHW information applied from the SHW / channel selector; D / A conversion means for selecting and converting only the data of the corresponding channel inputted from the input buffer based on the channel information applied from the SHW / channel selector; A speaker for converting and outputting an analog signal applied from the D / A converting means into an audible sound; The apparatus for testing a call path for a wireless subscriber network system, characterized in that it comprises a power supply unit for supplying power for the operation of the entire call path inspection device. The method of claim 5, The data applied to the call channel is a broadcast recording message applied from a wireless subscriber network system, and the test channel test apparatus in the wireless subscriber network system, characterized in that the user selectively tests various broadcast recording messages. The method of claim 5, Data selecting means for selecting an output path according to whether or not the data applied from the input buffer is compressed; Data conversion means for decompressing and compressing the compressed data applied from the data selection means, and outputting the converted data; And a D / A converting means for analog converting and outputting data applied from said data converting means or said data selecting means. The method of claim 7, wherein And a frame synchronization signal and a clock signal of a channel to be tested are converted into a specific frame synchronization signal and a clock signal and applied as a synchronization signal of the data conversion means and the D / A conversion means. The method of claim 7, wherein The data selecting means outputs to the D / A conversion means when the data applied from the input buffer is PCM data and to the data conversion means when the data applied from the input buffer is ADPCM data. Approach for testing the call path for wireless subscribers.