JP2008118243A - Digital radio equipment and self-diagnosis method therefor - Google Patents

Digital radio equipment and self-diagnosis method therefor Download PDF

Info

Publication number
JP2008118243A
JP2008118243A JP2006297411A JP2006297411A JP2008118243A JP 2008118243 A JP2008118243 A JP 2008118243A JP 2006297411 A JP2006297411 A JP 2006297411A JP 2006297411 A JP2006297411 A JP 2006297411A JP 2008118243 A JP2008118243 A JP 2008118243A
Authority
JP
Japan
Prior art keywords
self
transmission
diagnosis
test data
reception
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2006297411A
Other languages
Japanese (ja)
Inventor
Atsushi Mase
敦 間瀬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Kokusai Electric Inc
Original Assignee
Hitachi Kokusai Electric Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Kokusai Electric Inc filed Critical Hitachi Kokusai Electric Inc
Priority to JP2006297411A priority Critical patent/JP2008118243A/en
Publication of JP2008118243A publication Critical patent/JP2008118243A/en
Pending legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Transmission In General (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To attain a self-diagnosis function utilizing leak radio waves in the transmission radio waves of digital radio equipment itself by matching a frequency in transmission and reception to a signal format, without having to significantly change the hardware and the software. <P>SOLUTION: In the digital radio equipment, test data are generated and modulated for transmission, the leaked test data are received for demodulation, an error in the received test data is determined for measuring a bit-error rate, and the measured bit-error rate is displayed. When the test data are transmitted and received, the frequency in the direct communication between mobile stations and the signal format are utilized for self-diagnosis. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description


本発明は、自己診断機能を備えたデジタル無線機およびその自己診断方法に関するものであり、特に、通信を行う相手無線機や試験装置を用いることなく、試験対象の無線機が単独で自分自身が正常に動作しているか否かを診断するテスト機能を有するデジタル無線機およびその自己診断方法に関するものである。

The present invention relates to a digital radio device having a self-diagnosis function and a self-diagnosis method thereof, and in particular, a radio device to be tested by itself without using a partner radio device or a test apparatus for communication. The present invention relates to a digital radio having a test function for diagnosing whether or not it is operating normally and a self-diagnosis method thereof.


従来の自己診断機能を有する無線機の一実施例を以下に説明する。

An example of a conventional radio having a self-diagnosis function will be described below.

図5は、従来の自己診断機能を有する無線機のブロック図を示す。同図において1はアンテナ、2は送受切り換えスイッチ、5は送信高周波部、6は変調部、7は送信フレーム処理部、10は音声コーデック部、11は送信音声処理部、12はマイク、13は受信高周波部、14は復調部、15は受信フレーム処理部、18は受信音声処理部、19はスピーカーである。

通常、送信時には、マイク12より入力された音声は、送信音声処理部11にてレベル調整され、音声コーデック10にてA/D返還される。恩セイコーデック10より出力されたデジタルのデータは、送信フレーム処理部7にてフレームフォーマットにしたがってエンコードされ、変調部4にて変調処理される。
FIG. 5 shows a block diagram of a radio having a conventional self-diagnosis function. In the figure, 1 is an antenna, 2 is a transmission / reception switch, 5 is a transmission high-frequency unit, 6 is a modulation unit, 7 is a transmission frame processing unit, 10 is an audio codec unit, 11 is a transmission audio processing unit, 12 is a microphone, and 13 is A reception high-frequency unit, 14 is a demodulation unit, 15 is a reception frame processing unit, 18 is a reception audio processing unit, and 19 is a speaker.

Usually, at the time of transmission, the level of the voice input from the microphone 12 is adjusted by the transmission voice processing unit 11 and A / D is returned by the voice codec 10. The digital data output from the security codec 10 is encoded by the transmission frame processing unit 7 in accordance with the frame format, and is modulated by the modulation unit 4.

変調部4にて変調処理された信号は、送信高周波部3にてに送信波となり送受切り換えスイッチ2を介してアンテナ1より送信される。   The signal modulated by the modulation unit 4 becomes a transmission wave in the transmission high-frequency unit 3 and is transmitted from the antenna 1 via the transmission / reception changeover switch 2.

受信時には、アンテナ1にて受信された信号は送受アンテナスイッチ2を介して受信高周波部13を通り、服兆部14にて受信データに復調される。   At the time of reception, the signal received by the antenna 1 passes through the reception high-frequency unit 13 through the transmission / reception antenna switch 2 and is demodulated into reception data by the sign unit 14.

受信データは受信フレーム処理部15にてデコード処理され、音声コーデック10にてD/A変換、受信音声処理部18にてレベル調整されてスピーカー19より復調された音声が出力される。   The reception data is decoded by the reception frame processing unit 15, D / A converted by the audio codec 10, level-adjusted by the reception audio processing unit 18, and demodulated audio is output from the speaker 19.

ここで、送受切り換えスイッチ2は送信高周波部5に、受信時は受信高周波部13に接続する。   Here, the transmission / reception changeover switch 2 is connected to the transmission high-frequency unit 5 and to the reception high-frequency unit 13 during reception.

一方、自己診断テストの時は、まず送信部と受信部の動作を同時に行うように制御し、送受切り換えスイッチ2は常時送信高周波部3に接続させる。

自己診断テスト時において、マイク12に周辺雑音が入力されると、通常そう神事と同様に送信音声処理部11、音声コーデック10、送信フレーム処理部7、変調部6、送信高周波部5、送受切り換えスイッチ2を介してアンテナ1より送信される。
この際、送受切り換えスイッチ2より漏洩した送信波は送信高周波部13に入力され、通常受信時と同様に復調処理部14、受信フレーム処理部15、音声コーデック10、受信音声処理部18を介してスピーカー19より周辺雑音の復調信号として出力される。ここで、この時スピーカー19より出力された周辺雑音は、再び、マイク12も入力され、上記過程を繰り返す。
On the other hand, at the time of the self-diagnosis test, first, control is performed so that the operations of the transmission unit and the reception unit are performed simultaneously, and the transmission / reception changeover switch 2 is always connected to the transmission high frequency unit 3.

When ambient noise is input to the microphone 12 during the self-diagnosis test, the transmission voice processing unit 11, the voice codec 10, the transmission frame processing unit 7, the modulation unit 6, the transmission high-frequency unit 5, and transmission / reception switching are performed in the same manner as a normal ritual. It is transmitted from the antenna 1 through the switch 2.
At this time, the transmission wave leaked from the transmission / reception changeover switch 2 is input to the transmission high-frequency unit 13 and passes through the demodulation processing unit 14, the reception frame processing unit 15, the audio codec 10, and the reception audio processing unit 18 as in normal reception. The signal is output from the speaker 19 as a demodulated signal of ambient noise. Here, the ambient noise output from the speaker 19 at this time is input to the microphone 12 again, and the above process is repeated.

これにより、ハウリングが生じ、スピーカー19よりビート音が出力される。   Thereby, howling occurs and a beat sound is output from the speaker 19.

このビート音を操作者が耳で確認することにより、無線機が正常に動作しているか否か判断することができる。

なお、自己診断テスト時には送信周波数と受信周波数を等しくし、同時に動作させる必要があるため、例えば、PLL周波数シンセサイザの原振動に使用している水晶発振器の出力を分配して、周波数混合器に局部発振信号として入力して送受を同時に行う方法などが考えられている。

従来の自己診断機能を有する無線機に関する技術としては、例えば特許文献1、特許文献2がある。

特開平09−135190号公報 特開2005−159847号公報
The operator can determine whether or not the wireless device is operating normally by checking the beat sound with the ear.

Since it is necessary to equalize the transmission frequency and the reception frequency during the self-diagnosis test and operate them simultaneously, for example, the output of the crystal oscillator used for the original vibration of the PLL frequency synthesizer is distributed and the frequency mixer is locally A method of performing transmission and reception simultaneously by inputting as an oscillation signal is considered.

For example, there are Patent Document 1 and Patent Document 2 as technologies related to a conventional wireless device having a self-diagnosis function.

JP 09-135190 A JP 2005-159847 A


しかしながら、自身が送信した信号を受信するためには、送信と受信の周波数や信号フォーマットを同じくする必要があるため、ハードとソフトの変更が必要となってしまうという問題があった。

However, in order to receive a signal transmitted by itself, it is necessary to use the same frequency and signal format for transmission and reception, so there is a problem that hardware and software must be changed.

本発明は、このような従来の事情に鑑み為されたもので、少量のソフト変更で自己診断機能を実現することのできる自己診断機能付きデジタル無線機およびその自己診断方法を提供することにある。   The present invention has been made in view of such a conventional situation, and provides a digital radio with a self-diagnosis function capable of realizing a self-diagnosis function with a small amount of software change and a self-diagnosis method thereof. .


上記目的を達成するため、本発明に係るデジタル無線機は、音声入出力手段とデジタル変復調手段と自身の送信電波の漏洩電波を利用して自身の動作が正常であるか否かを自己診断する手段を有するデジタル無線機であって、自己診断を行う場合に送信テストデータを発生するテストデータ発生手段と、該送信テストデータに基づくデータを受信して自己診断を行うビット誤り率測定手段と、該ビット誤り率測定手段の測定結果を表示する表示手段と、移動局間直接通信機能とを備え、前記移動局間直接通信の周波数および信号フォーマットを利用して自己診断を行うことを特徴とする。

また、上記目的を達成するため、本発明に係るデジタル無線機における自己診断方法は、自身の送信電波の漏洩電波を利用して自身の動作が正常であるか否かを自己診断するデジタル無線機の自己診断方法において、テストデータを発生させ変調して送信し、漏洩した該テストデータを受信して復調し、受信した該テストデータの誤りを判定してビット誤り率を測定し、測定した該ビット誤り率を表示する自己診断方法であって、前記テストデータの送受信の際に、移動局間直接通信の周波数および信号フォーマットを利用して自己診断を行うことを特徴とする。

In order to achieve the above object, the digital radio according to the present invention self-diagnose whether or not its own operation is normal using the voice input / output means, the digital modulation / demodulation means, and the leaked radio wave of its own transmission radio wave. A digital radio having means for generating transmission test data when performing self-diagnosis, bit error rate measuring means for receiving data based on the transmission test data and performing self-diagnosis, A display means for displaying a measurement result of the bit error rate measuring means and a direct communication function between mobile stations, and self-diagnosis is performed using the frequency and signal format of the direct communication between mobile stations. .

In order to achieve the above object, a self-diagnosis method in a digital radio according to the present invention is a digital radio that self-diagnose whether or not its own operation is normal by using a leaked radio wave of its own radio wave. In the self-diagnosis method, the test data is generated, modulated and transmitted, the leaked test data is received and demodulated, the error of the received test data is determined, the bit error rate is measured, and the measured A self-diagnosis method for displaying a bit error rate, characterized in that self-diagnosis is performed using the frequency and signal format of direct communication between mobile stations when the test data is transmitted and received.


以上説明したように、本発明に係る自己診断機能付きデジタル無線機およびその自己診断方法によると、通信を行う相手無線機や試験装置を用いることなく、自身の送信波の漏洩電波を利用した自己診断機能において、単信のプレストーク通信である移動局間直接通信機能を利用することで、送信と受信の周波数の共通化および信号フォーマットの共通化を達成することができ、ハード変更や大きなソフト変更を必要とせずに無線機の自己診断機能を実現することができる。

As described above, according to the digital radio with a self-diagnosis function and the self-diagnosis method according to the present invention, the self radio using the leaked radio wave of its own transmission wave can be used without using a counterpart radio or a test device for communication. By using the direct communication function between mobile stations, which is a simplex press-talk communication, the diagnosis function can achieve common transmission and reception frequencies and common signal formats. The self-diagnosis function of the wireless device can be realized without requiring any change.


本発明の一実施例を図1を用いて説明する。

An embodiment of the present invention will be described with reference to FIG.

図1は本発明の第一の実施例を示すブロック図である。図1において、1はアンテナ、2は送受切り換えスイッチ、3は送信出力制御部(例えば、可変アッテネータ)、4は出力制御量記憶部(アッテネータ制御量記憶部)、5は送信高周波部、6は変調部、7は送信フレーム処理部、8はテストデータ発生部、9は送信データ切り換えスイッチ、10は音声コーデック部、11は送信音声処理部、12はマイク、13は受信高周波部、14は復調部、15は受信フレーム処理部、16は受信データ切り換えスイッチ、17はビット誤り率測定部、18は受信音声処理部、19はスピーカー、20は表示部、21は受信電界強度検出部である。

通常時は、送信出力制御部3は減衰なしに設定されており、送信フレーム処理部7は送信データ切り換えスイッチ9を介して音声コーデック10に、受信フレーム処理部15はスイッチ受信データ切り換え16を介して音声コーデック10に接続している。また送受切り換えスイッチ2は、送信時は送信出力制御部3に、受信時は受信高周波部13に接続する。

一方、自己診断テスト時には、送信出力制御部3は出力制御量記憶部4に記憶されている減衰量に設定され、送信フレーム処理部7は送信データ切り換えスイッチ9によりテストデータ発生部8に、受信フレーム処理部15は受信データ切り換えスイッチ16により誤りビット判定部17に接続される。また、送受切り換えスイッチ2はアンテナ1と送信出力制御部3が接続されるように制御してハード的には常に送信状態とする一方、動作は送信動作と受信動作を同時に行うように制御する。この時、送信の漏れ電波を受信するために送信と受信の周波数設定を合わせるとともに、自身が送信したデータを受信して復調するために信号フォーマットも合わせる必要があるため、通信モードを移動局間直接通信にする。

ここで、図2、図3および図4を用いて移動局間直接通信について説明する。図2には無線システムの一例を示し、図3には信号フォーマットの例として、市町村デジタル移動通信システム(ARIB STD-T79)の基地局通信の通信チャネルの信号フォーマットを示し、図4には移動局間直接通信の通信チャネルの信号フォーマットを示す。

まず、図2において、201は基地局無線装置、202、203および204は移動局である。基地局201と移動局202が行っている基地局通信では下り無線キャリアf1(移動局無線端末の受信周波数)と上り無線キャリアf2(移動局無線端末の送信周波数)のように送信と受信で異なる周波数を使用するのに対し、移動局203と204が行っている移動局間直接通信の場合は、移動局直接通信用キャリアf3の1波でお互いの通信を行っており、送信と受信で同じ周波数を使用している。

次に、図3と図4に示す信号フォーマットにおいて、図3の基地局通信では上り通信(移動局無線端末の送信)用と下り通信(移動局無線端末の受信)用で異なった信号フォーマットを使用しているのに対し、移動局間直接通信の場合は図4に示すように1種類の信号フォーマットでお互いの通信を行っており、送信と受信で同じ信号フォーマットを使用している。

自己診断テスト時の動作は、ます、テストデータ発生部8にて任意のテスト信号(例えばPN符号等)を発生し、送信データ切り換えスイッチ9を介して送信フレーム処理部7に出力する。送信フレーム処理部7は入力されたテスト信号を信号フォーマットに従ってエンコード処理を行い、エンコードされたデータは変調部6にて変調処理される。変調部6にて変調された信号は送信高周波部5を通り、送信出力制御部3で任意のレベルに調整され、送受切り換えスイッチ2を介してアンテナ1より送信される。この時送受切り換えスイッチ2にて漏洩した送信波は受信高周波13に入力され受信される。受信高周波部13にて受信された信号は復調部14にて復調、受信フレーム処理部15にてデコードされ受信データとなる。受信フレーム処理部15より出力された受信データは受信データ切り換えスイッチ16を介してビット誤り率測定部17に入力され、誤り率が計算される。ビット誤り率測定部17にて計算されたビット誤り率は表示部20に表示される。また、同時に高周波部13の出力は受信電界強度検出部21に入力され、この時の受信電界強度が表示部20に表示される。

ここで、出力制御量記憶部4には、出荷前の初期調整時に上記の自己診断テスト時と同様の動作を行い、表示部20に表示されるビット誤り率、または受信電界強度が任意の値となる時の送信出力制御部3の制御値を記憶しておく。

つまり、送信高周波部5および受信高周波部13の無線高周波部に部品の経年劣化等による変調精度や受信感度等の性能劣化がなければ、自己診断テストを行った際に表示部20に表示されるビット誤り率と受信電界強度は初期調整時の任意値になるはずであり、任意値とならなかった場合には、無線高周波部に性能劣化があることが分かる。

本発明の実施の形態によれば、ハード変更や大きなソフト変更をせずに、送信と受信の周波数および信号フォーマットを合わせて、デジタル無線機における自身の送信電波の漏洩電波を利用した自己診断機能を実現する。
FIG. 1 is a block diagram showing a first embodiment of the present invention. In FIG. 1, 1 is an antenna, 2 is a transmission / reception changeover switch, 3 is a transmission output control unit (for example, a variable attenuator), 4 is an output control amount storage unit (attenuator control amount storage unit), 5 is a transmission high-frequency unit, and 6 is Modulation unit, 7 is a transmission frame processing unit, 8 is a test data generation unit, 9 is a transmission data changeover switch, 10 is an audio codec unit, 11 is a transmission audio processing unit, 12 is a microphone, 13 is a reception high-frequency unit, and 14 is demodulated , 15 is a received frame processing unit, 16 is a received data changeover switch, 17 is a bit error rate measuring unit, 18 is a received voice processing unit, 19 is a speaker, 20 is a display unit, and 21 is a received electric field strength detecting unit.

In normal times, the transmission output control unit 3 is set without attenuation, the transmission frame processing unit 7 is transmitted to the voice codec 10 via the transmission data switching switch 9, and the reception frame processing unit 15 is switched via the switch reception data switching 16. Connected to the audio codec 10. The transmission / reception changeover switch 2 is connected to the transmission output control unit 3 during transmission and to the reception high-frequency unit 13 during reception.

On the other hand, during the self-diagnosis test, the transmission output control unit 3 is set to the attenuation amount stored in the output control amount storage unit 4, and the transmission frame processing unit 7 is received by the test data generation unit 8 by the transmission data changeover switch 9. The frame processing unit 15 is connected to the error bit determination unit 17 by the reception data changeover switch 16. The transmission / reception changeover switch 2 is controlled so that the antenna 1 and the transmission output control unit 3 are connected to be always in a transmission state in hardware, while the operation is controlled so that the transmission operation and the reception operation are performed simultaneously. At this time, it is necessary to match the transmission and reception frequency settings in order to receive transmission leakage radio waves, and also to match the signal format to receive and demodulate the data transmitted by itself. Direct communication.

Here, direct communication between mobile stations will be described with reference to FIG. 2, FIG. 3, and FIG. Fig. 2 shows an example of a radio system. Fig. 3 shows a signal format of a communication channel for base station communication of a municipal digital mobile communication system (ARIB STD-T79). Fig. 4 shows an example of a signal format. The signal format of the communication channel of direct communication between stations is shown.

First, in FIG. 2, 201 is a base station radio apparatus, and 202, 203 and 204 are mobile stations. In base station communication performed by the base station 201 and the mobile station 202, transmission and reception are different as in a downlink radio carrier f1 (reception frequency of the mobile station radio terminal) and an uplink radio carrier f2 (transmission frequency of the mobile station radio terminal). In the case of direct communication between mobile stations performed by the mobile stations 203 and 204 while using the frequency, communication is performed with one wave of the mobile station direct communication carrier f3. The frequency is used.

Next, in the signal formats shown in FIG. 3 and FIG. 4, in the base station communication of FIG. 3, different signal formats are used for uplink communication (transmission of mobile station radio terminal) and downlink communication (reception of mobile station radio terminal). In contrast, in the case of direct communication between mobile stations, communication is performed with one signal format as shown in FIG. 4, and the same signal format is used for transmission and reception.

As an operation during the self-diagnosis test, an arbitrary test signal (for example, a PN code) is first generated by the test data generation unit 8 and output to the transmission frame processing unit 7 via the transmission data changeover switch 9. The transmission frame processing unit 7 encodes the input test signal according to the signal format, and the encoded data is modulated by the modulation unit 6. The signal modulated by the modulation unit 6 passes through the transmission high-frequency unit 5, is adjusted to an arbitrary level by the transmission output control unit 3, and is transmitted from the antenna 1 via the transmission / reception changeover switch 2. At this time, the transmission wave leaked by the transmission / reception selector switch 2 is input to the reception high frequency 13 and received. The signal received by the reception high-frequency unit 13 is demodulated by the demodulation unit 14 and decoded by the reception frame processing unit 15 to be received data. The reception data output from the reception frame processing unit 15 is input to the bit error rate measurement unit 17 via the reception data changeover switch 16, and the error rate is calculated. The bit error rate calculated by the bit error rate measuring unit 17 is displayed on the display unit 20. At the same time, the output of the high frequency unit 13 is input to the received electric field strength detecting unit 21, and the received electric field strength at this time is displayed on the display unit 20.

Here, the output control amount storage unit 4 performs the same operation as the above self-diagnosis test during initial adjustment before shipment, and the bit error rate or the received electric field strength displayed on the display unit 20 is an arbitrary value. The control value of the transmission output control unit 3 at this time is stored.

In other words, if there is no performance degradation such as modulation accuracy and reception sensitivity due to aging degradation of parts in the transmission high-frequency unit 5 and the reception high-frequency unit 13, they are displayed on the display unit 20 when the self-diagnosis test is performed. The bit error rate and the received electric field strength should be arbitrary values at the time of initial adjustment. If the bit error rate and the received electric field intensity do not become arbitrary values, it can be seen that there is performance degradation in the radio high frequency unit.

According to the embodiment of the present invention, the self-diagnosis function using the leaked radio wave of its own transmission radio wave in the digital radio unit by combining the transmission and reception frequencies and signal formats without changing hardware or making large software changes. Is realized.

具体的には、テストデータを発生させ変調して送信し、漏洩した該テストデータを受信して復調し、受信した該テストデータの誤りを判定してビット誤り率を測定し、測定した該ビット誤り率を表示するデジタル無線機であって、前記テストデータの送受信の際に、移動局間直接通信の周波数および信号フォーマットを利用して自己診断を行う。   Specifically, test data is generated, modulated and transmitted, the leaked test data is received and demodulated, an error in the received test data is determined, a bit error rate is measured, and the measured bit A digital radio that displays an error rate, and performs self-diagnosis using the frequency and signal format of direct communication between mobile stations when transmitting and receiving the test data.

以上のように、移動局間直接通信の機能を利用することで、送信と受信の周波数および信号フォーマットを容易に合わせることができるため、ハード変更や大きなソフト変更を必要とせずに自己診断機能を有するデジタル無線機およびその自己診断方法を達成することができる。   As described above, by using the direct communication function between mobile stations, the frequency and signal format of transmission and reception can be easily matched, so the self-diagnostic function can be implemented without requiring hardware changes or large software changes. It is possible to achieve a digital radio having the same and a self-diagnosis method thereof.


本発明の一実施例に係る自己診断機能付きデジタル無線機のブロック図である。 無線システムの一例を示す図である。 基地局通信の信号フォーマットを示す図である。 移動局間直接通信の信号フォーマットを示す図である。 自己診断機能を有する無線機のブロック図の一例である。

It is a block diagram of a digital radio with a self-diagnosis function according to an embodiment of the present invention. 1 is a diagram illustrating an example of a wireless system. It is a figure which shows the signal format of base station communication. It is a figure which shows the signal format of the direct communication between mobile stations. It is an example of a block diagram of a radio having a self-diagnosis function.

符号の説明Explanation of symbols


1:アンテナ、2:送受切り換えスイッチ、5:送信高周波部、6:変調部、7:送信フレーム処理部、8:テストデータ発生部、9:送信データ切り換えスイッチ、10:音声コーデック、11:送信音声処理部、12:マイク、13:受信高周波部、14:復調部、15:受信フレーム処理部、16:受信データ切り換えスイッチ、17:誤りビット判定部、18:受信音声処理部、19:スピーカー、20:表示部、21:受信電界強度検出部、201:基地局無線装置、202、203、204:無線端末

1: antenna, 2: transmission / reception switching switch, 5: transmission high-frequency unit, 6: modulation unit, 7: transmission frame processing unit, 8: test data generation unit, 9: transmission data switching switch, 10: audio codec, 11: transmission Audio processing unit, 12: microphone, 13: reception high frequency unit, 14: demodulation unit, 15: reception frame processing unit, 16: reception data changeover switch, 17: error bit determination unit, 18: reception audio processing unit, 19: speaker , 20: display unit, 21: received electric field strength detection unit, 201: base station radio apparatus, 202, 203, 204: radio terminal

Claims (2)

音声入出力手段とデジタル変復調手段と自身の送信電波の漏洩電波を利用して自身の動作が正常であるか否かを自己診断する手段を有するデジタル無線機であって、
自己診断を行う場合に送信テストデータを発生するテストデータ発生手段と、
該送信テストデータに基づくデータを受信して自己診断を行うビット誤り率測定手段と、
該ビット誤り率測定手段の測定結果を表示する表示手段と、
移動局間直接通信機能と、
を備え、前記移動局間直接通信の周波数および信号フォーマットを利用して自己診断を行うことを特徴とするデジタル無線機。
A digital radio having a voice input / output means, a digital modulation / demodulation means, and means for self-diagnosis of whether or not its own operation is normal using a leaked radio wave of its own transmission radio wave,
Test data generation means for generating transmission test data when performing self-diagnosis,
Bit error rate measuring means for receiving data based on the transmission test data and performing self-diagnosis;
Display means for displaying the measurement result of the bit error rate measuring means;
A direct communication function between mobile stations;
And a self-diagnosis using the frequency and signal format of the direct communication between the mobile stations.
自身の送信電波の漏洩電波を利用して自身の動作が正常であるか否かを自己診断するデジタル無線機の自己診断方法において、
テストデータを発生させ変調して送信し、漏洩した該テストデータを受信して復調し、受信した該テストデータの誤りを判定してビット誤り率を測定し、測定した該ビット誤り率を表示する自己診断方法であって、
前記テストデータの送受信の際に、移動局間直接通信の周波数および信号フォーマットを利用して自己診断を行うことを特徴とするデジタル無線機の自己診断方法。
In the self-diagnosis method of a digital radio that self-diagnose whether its own operation is normal using the leaked radio wave of its own transmission radio wave,
Test data is generated, modulated and transmitted, the leaked test data is received and demodulated, the error of the received test data is determined, the bit error rate is measured, and the measured bit error rate is displayed A self-diagnosis method,
A self-diagnosis method for a digital radio, wherein self-diagnosis is performed using the frequency and signal format of direct communication between mobile stations when transmitting and receiving the test data.
JP2006297411A 2006-11-01 2006-11-01 Digital radio equipment and self-diagnosis method therefor Pending JP2008118243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006297411A JP2008118243A (en) 2006-11-01 2006-11-01 Digital radio equipment and self-diagnosis method therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006297411A JP2008118243A (en) 2006-11-01 2006-11-01 Digital radio equipment and self-diagnosis method therefor

Publications (1)

Publication Number Publication Date
JP2008118243A true JP2008118243A (en) 2008-05-22

Family

ID=39503845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006297411A Pending JP2008118243A (en) 2006-11-01 2006-11-01 Digital radio equipment and self-diagnosis method therefor

Country Status (1)

Country Link
JP (1) JP2008118243A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011071914A (en) * 2009-09-28 2011-04-07 Fujitsu Ltd Communication device
CN115842608A (en) * 2023-02-20 2023-03-24 北京中天星控科技开发有限公司 Data link transmission performance test control method, system, equipment and storage medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011071914A (en) * 2009-09-28 2011-04-07 Fujitsu Ltd Communication device
CN115842608A (en) * 2023-02-20 2023-03-24 北京中天星控科技开发有限公司 Data link transmission performance test control method, system, equipment and storage medium

Similar Documents

Publication Publication Date Title
JP5303611B2 (en) Mobile communication terminal test apparatus and mobile communication terminal test method
JP4718606B2 (en) Communication device including integrated digital camera operating at different frequencies and associated method
JP2008118243A (en) Digital radio equipment and self-diagnosis method therefor
KR100312032B1 (en) Character service method for cellular phone
JP2007208349A (en) Testing system for radio
JP2000083000A (en) Measuring system for communication equipment
JP5269940B2 (en) COMMUNICATION SYSTEM, TRANSMISSION DEVICE, RECEPTION DEVICE, AND COMMUNICATION METHOD
JP5331091B2 (en) COMMUNICATION SYSTEM, TRANSMISSION DEVICE, RECEPTION DEVICE, AND COMMUNICATION METHOD
JP4261503B2 (en) Wireless communication device and output adjustment method for wireless communication device
JP5350351B2 (en) COMMUNICATION SYSTEM, TRANSMISSION DEVICE, RECEPTION DEVICE, AND COMMUNICATION METHOD
JP2005159847A (en) Digital radio equipment and operation check method therefor
JP2001308828A (en) Method and device for arranging confidentiality in radio equipment
JP4798107B2 (en) Communication circuit measurement evaluation method and measurement evaluation system apparatus
JPH1093489A (en) Radio communication equipment and diversity reception method
KR20010004498A (en) Apparatus and method for automatic controlling audio and radio signal in mobile communication terminal
JP2007266869A (en) Wireless lan terminal, maintenance and inspection of the wireless lan terminal
JP3990353B2 (en) Inspection method of communication equipment having voice output function
KR100322014B1 (en) Baseband Analog Chipset Performance Test Apparatus and Method for Digital Cellular Terminal
KR20040043338A (en) mobile communication terminal having a musical instrument tuning function and controlling method therefore
US20060105726A1 (en) Leakage electromagnetic wave communication device
KR100539898B1 (en) Method for forwarding transmission of data in the mobile terminal
KR20140049286A (en) Apparatus, system and method for transmitting single wave standard time using multi-modulation and time-slicing mode
WO2006115024A1 (en) Mobile terminal equipped with tv
KR20060061018A (en) Mobile phone for preventing signal loss
KR20070056511A (en) Portable phone having function of detecting wireless microphone