KR970055735A - Tone transceiving device and method for CDMA automatic call tester - Google Patents

Tone transceiving device and method for CDMA automatic call tester Download PDF

Info

Publication number
KR970055735A
KR970055735A KR1019950053632A KR19950053632A KR970055735A KR 970055735 A KR970055735 A KR 970055735A KR 1019950053632 A KR1019950053632 A KR 1019950053632A KR 19950053632 A KR19950053632 A KR 19950053632A KR 970055735 A KR970055735 A KR 970055735A
Authority
KR
South Korea
Prior art keywords
tone
digital signal
received
signal processing
processor
Prior art date
Application number
KR1019950053632A
Other languages
Korean (ko)
Other versions
KR0155329B1 (en
Inventor
한기철
임덕빈
정인명
이상천
서민식
Original Assignee
양승택
한국전자통신연구원
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 양승택, 한국전자통신연구원 filed Critical 양승택
Priority to KR1019950053632A priority Critical patent/KR0155329B1/en
Publication of KR970055735A publication Critical patent/KR970055735A/en
Application granted granted Critical
Publication of KR0155329B1 publication Critical patent/KR0155329B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

본 발명은 CDMA 이동통신 시스템의 기지국과 이동국간 호처리 용량 및 성능 시험을 위하여 필요한 시험장비인 CDMA 자동호 시험장치(MCS)의 접속장치중 톤 송수신카드에 관한 것으로 톤송수신용 카드는이동국이 통화상태로 된 후 통화품질을 확인하기 위하여 특정한 톤을 송수신한다.The present invention relates to a tone transmitting / receiving card of a connection device of a CDMA automatic call tester (MCS), which is a test equipment required for call processing capacity and performance test between a base station and a mobile station in a CDMA mobile communication system. After entering a state, a specific tone is transmitted and received to check the call quality.

미리 정해진 주파수의 톤을 카드내의 EPROM에 저장되어 있으며 정해진 주기에 따라 8비트의 D/A(Digial to Analog) 변환기를 통해 전송된다.Tones of a predetermined frequency are stored in the EPROM in the card and transmitted via an 8-bit digital-to-analog (D / A) converter at predetermined intervals.

수신된 톤은 10비트의 A/D(Analog to Digital) 변환기를 통해서 디지털 신호로 변환되어 32mese 단위로 FFT(Fast Fourier Transform)한다.The received tone is converted into a digital signal through a 10-bit analog-to-digital (A / D) converter, and is subjected to fast fourier transform (FFT) in 32mese units.

FFT처리된 결과로 수신된 톤이 송신한 톤과 일치되는지를 확인하여 통화품질을 측정한다.The quality of the call is measured by checking whether the received tone matches the transmitted tone as a result of FFT processing.

Description

씨디엠에이(CDMA) 자동호 시험기의 톤 송수신 장치 및 방법.Tone transmitting and receiving device and method of a CDMA automatic call tester.

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 적용되는 CDMA자동호 시험기의 구성도.1 is a block diagram of a CDMA automatic call tester according to the present invention.

제2도는 CDMA자동호 시험장치의 톤(Tone)송수신 카드 블럭 구성도.2 is a block diagram of a tone transmission / reception card block of a CDMA automatic call test apparatus.

Claims (4)

16개의 CDMA이동국(10)과 내부 슬롯에 통신카드가 실장되어 접속장치와 연결되는 IBM-PC를 사용한 운용장치(30)와 운용장치의 RS232C 직렬통신포트와 연결되어 16개의 이동국을 제어하고 명령어 전송을 하는 이중포트 SRAM(41)가 내장된 제어카드(40) 및 톤 송수신장치(50)를 구성된 접속장치(20)를 포함하여 구성된 CDMA자동호 시험장치에 있어서, 상기 접속장치(20)내의 톤 송수신장치는, 상기 이중포트 SRAM(41)로부터 저농된 명렁어에 따라 상기 16개의 이동국에서 사용되는 톤을 실시간으로 디지탈 처리하는 디지탈 신호처리프로세서(51)와, 상기 16개의 이동국으로부터 수신된 신호와D/A변환기(54)를 통해 변환되어 이동국으로 전송될 신호를 음성대역 시호로 제한하여송수신하기 위한 음성대역필터(55)와, 상기 디지탈 신호처리 프로세서(51)에서 디지탈 처리된 신호를 소정 주파수로 샘플링 처리하여 아날로그 신호로 출력하는 D/A변환기(54)와, 상기 음성대역필터(55)를 통과한 수신 톤의 통화품질을 분석하기 위해 수신된 톤에 해당한 아날로그 신호를 디지탈 신호로 변환하여 상기 디지탈 신호처리 프로세서(51)에서 출력하는 A/D변환기(53)와 상기 디지탈 신호ㅓ리 프로세서(51)에 제공될 여러가지의 톤에 해당되는 값이 테이블로 만들어진 주 프로그램이 내장되는 제1메모리(56)와 디지탈 신호처리 프로세서(51)에 제공될 음성을 디지탈로 변환하여 내장함으로써 녹음된 음성을 전송할 때 사용하는 제2메모리(57)와 상기 디지탈 신호처리 프로세서(51)에 전송할 톤을 일시 저장하거나 상기 디지탈 신호처리 프로세서(51)로부터 수신된 톤을 급속 퓨리에 변환(FFT;Fast Fourier Transform)에 의해 처리하기 위해 임시로 사용하는 제3메모리(58)와, 상기 디지탈 신호처리 프로세서(51)에서 처리된 데이타를 표시하는 제1표시기(59)와, 상기 디지탈 신호처리 프로세서(51)를 통해 수신되는 톤의 상태를 표시하는 제2표시기(60), 와 상기 디지탈 신호처리 프로세서(51)를 통해 송신되는 톤의 상태를 표시하는 제 3표시기(61)로 구성된 것을 특징으로 하는 CDMA자동호 시험기의 톤 송수신장치.16 CDMA mobile stations 10 and communication cards are mounted in the internal slots and connected to the operating device 30 using the IBM-PC connected to the connecting device and the RS232C serial communication port of the operating device to control 16 mobile stations and transmit commands. A CDMA automatic call test apparatus comprising a control card 40 having a built-in dual port SRAM 41 and a connection device 20 including a tone transceiver 50, wherein the tone in the connection device 20 is provided. The transceiver includes a digital signal processor 51 for digitally processing the tones used in the 16 mobile stations in real time according to the low concentration of the dual port SRAM 41, and the signals received from the 16 mobile stations. The digital signal processing processor 51 and the digital signal processing processor 51 and the digital signal processing processor 51 and the digital signal processing processor 51 for converting the signal to be transmitted to the mobile station converted by the D / A converter 54 to the voice band time signal D / A converter 54 sampling and outputting an analog signal at a constant frequency and an analog signal corresponding to the received tone to analyze the call quality of the received tone passing through the voice band filter 55 A / D converter 53 and a value corresponding to various tones to be provided to the digital signal processing processor 51 are converted into the digital signal processing processor 51 and outputted from the digital signal processing processor 51. By converting the voice to be provided to the first memory 56 and the digital signal processor 51 into a digital signal, the second memory 57 and the digital signal processor 51 are used to transmit the recorded voice. A third memo that temporarily stores a tone or temporarily uses a tone received from the digital signal processor 51 for processing by a Fast Fourier Transform (FFT). (58), a first indicator (59) for displaying data processed by the digital signal processing processor (51), and a second indicator for displaying a state of a tone received through the digital signal processing processor (51). 60), and a tone transmitting / receiving device of a CDMA automatic call tester, comprising: a third indicator (61) for displaying a state of a tone transmitted through the digital signal processing processor (51). 프로세서 내부 메모리 및 외부 메모리(RAM)를 체크하고, 입/출력 설정, 인터럽트를 인에이블시키고, 외부 타이머를 인에이블시키는 제1단계와, 외부에서 인터럽트가 발생되었는지를 검사하는 제2단게와, 상기 제2단계에 의해 인터럽트가 발생할 경우 소정시간의 타이머 인터럽트인가를 판단하는 제3단계와 상기 제3단계에서 타이머 인터럽트일 경우 상기 소정시간의 인터럽트를 처리하고, A/D, D/A변환을 수행한 후 상기 인터럽트발생여부를 다시 확인하는 제4단계와, 상기 제3단계에서 타이머 인터럽트가 아닐 경우 이중 포트 메모리(RAM)에서 발생된 외부 인터럽트를 처리하고제어카드에서 전송된 명령을 내부 메모리에 저장하는 제5단계와, 상기 제2단게에서 인터럽트가 발생되지 않았을 경우 제어카드에서 전송된 명령어가 수신되었는지를 확인하는 제6단계와, 상기 제6단계의 확인결과 제어카드에서 명령이 수신될 경우 수신 명령어에 해당하는 톤 및 녹음된 음성에 대한 처리를 하고 응답 메시지를 구성하여 제어카드로 전송하고 각 이동국별 상태를 저장하는 제7단계와, 256개의 데이타 A/D변환이 완료되었는지를 확인하는 제8단계와, 상기 A/D변환이 완료될 경우 이동국의 상태가 톤 수신상태인가를 판단하는 제9단계와 상기 제9단계의 판단에 의해 이동국이 통화상태이면 256포인트 급속 퓨리에 변환(FFT)를 실행하여 정의된 톤에 따라 수신결과를 확인하여 내부 메모리에 저장하는 제10단계로 이루어지는 것을 특징으로 하는 CDMA 자동호 시험기의 톤 송수신 방법.A first step of checking processor internal memory and external memory (RAM), enabling input / output settings, interrupts, and enabling an external timer, a second step of checking whether an interrupt has occurred externally, and A third step of determining whether the timer is interrupted for a predetermined time when the interrupt occurs in the second step; and processing the interrupt for the predetermined time and performing A / D and D / A conversion when the timer is interrupted in the third step. After the step 4 to check whether the interrupt occurs again, and if it is not the timer interrupt in the third step to process the external interrupt generated in the dual port memory (RAM) and stores the command transmitted from the control card in the internal memory And a fifth step of checking whether a command transmitted from the control card has been received when the interrupt is not generated in the second step. If the command is received from the control card of the sixth step, processing is performed on the tone and the recorded voice corresponding to the received command, constructs a response message, transmits it to the control card, and stores the state for each mobile station. A seventh step, an eighth step of checking whether 256 data A / D conversions are completed, and a ninth step of judging whether the state of the mobile station is a tone reception state when the A / D conversion is completed; If the mobile station is in the call state by the judgment of the step, the CDMA automatic call tester comprising the tenth step of performing 256-point fast Fourier transform (FFT) to check the received result according to the defined tone and storing it in the internal memory. Tone transceiving method. 제2항에 있어서 일정톤의 전송은 오프-타임이 0이 아닌 경우, 착신 이동국이 먼저 톤을 온-타임동안 송신하고 오프-타임이 지난후에 발신 이동국이 전송하며 수신 톤 검출이 지속되는 동안 계속해서 실행하는 것을 특징으로 하는 CDMA자동호 시험기의 톤 송수신장치.3. The transmission of a fixed tone according to claim 2, wherein, if the off-time is not zero, the called mobile station first transmits the tone for on-time, and after the off-time passes, the originating mobile station transmits and continues while receiving tone detection continues. Tone transceiver of a CDMA automatic call tester, characterized in that the execution. 제2항에 있어서 일정 톤의 전송은 오프-타임이 0인 경우에 착신 이동국과 발신 이동국이 동시에 송신하고 톤-오프 명령이 수신될 때까지 전송하는 것을 특징으로 하는 CDMA 자동호 시험기의 톤 송수신 방법.The tone transmitting / receiving method of claim 2, wherein the transmission of a predetermined tone is performed when the called mobile station and the calling mobile station transmit simultaneously when the off-time is 0 and until a tone-off command is received. . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950053632A 1995-12-21 1995-12-21 Apparatus for and mehtod of tone transceiving in cdma mobile call simulator KR0155329B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950053632A KR0155329B1 (en) 1995-12-21 1995-12-21 Apparatus for and mehtod of tone transceiving in cdma mobile call simulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950053632A KR0155329B1 (en) 1995-12-21 1995-12-21 Apparatus for and mehtod of tone transceiving in cdma mobile call simulator

Publications (2)

Publication Number Publication Date
KR970055735A true KR970055735A (en) 1997-07-31
KR0155329B1 KR0155329B1 (en) 1998-11-16

Family

ID=19442519

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950053632A KR0155329B1 (en) 1995-12-21 1995-12-21 Apparatus for and mehtod of tone transceiving in cdma mobile call simulator

Country Status (1)

Country Link
KR (1) KR0155329B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100978810B1 (en) * 2008-06-19 2010-08-30 한국철도공사 Tester for a One to One Matching Type Frequency Transmitting and Receiving Card

Also Published As

Publication number Publication date
KR0155329B1 (en) 1998-11-16

Similar Documents

Publication Publication Date Title
WO1998026616A3 (en) Communications system and method for testing of a communications apparatus
KR970055735A (en) Tone transceiving device and method for CDMA automatic call tester
JPS55105465A (en) Test system for remote station subscriber
CN202424822U (en) Device for testing calling and answering functions of mobile phone
US7787876B1 (en) Method and system for mobile call testing using contactless ring detection
KR970009010A (en) Automatic test method of mobile communication device and device
KR100251828B1 (en) Method for synchronizing between the devices measuring speech quality in the mobile telecommunication environment
KR960027606A (en) Protocol inspection device in mobile communication system
KR930015546A (en) Relay line test apparatus and method for analog characteristic test of trunk line between stations
SE9602862L (en) Improvements in, or relating to, the measurement of the quality of telecommunications connections
KR200210047Y1 (en) Base station transmit / receive performance check system using directional coupler
KR920007487B1 (en) Universial signal transceiving circuit pack
KR100227612B1 (en) Inspection apparatus of voice channel in vms system
JPH02311061A (en) Subscriber line test system
KR960013102A (en) Test method of digital currency exchange
CN114866161A (en) Detection system for ship AIS carrier sensing function
KR970056531A (en) Communication device for connection between communication line and personal computer by air interface
JP2783249B2 (en) Incoming call signal branching method and apparatus
JPH0235351B2 (en)
KR940013051A (en) Tester of Cellular Base System
KR0119149Y1 (en) Private exchange
KR930022798A (en) Method and device for functional test of private subscriber station extension
KR960016196A (en) Signal relay device and method for radiotelephone
KR950022629A (en) Self-diagnosis test method of digital key phone
JPH06152561A (en) Transmitter-receiver for tdma-tdd radio communication equipment

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20070702

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee