KR970072773A - Method and apparatus for searching effective modem (SCU) of satellite communication system - Google Patents

Method and apparatus for searching effective modem (SCU) of satellite communication system Download PDF

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Publication number
KR970072773A
KR970072773A KR1019960011156A KR19960011156A KR970072773A KR 970072773 A KR970072773 A KR 970072773A KR 1019960011156 A KR1019960011156 A KR 1019960011156A KR 19960011156 A KR19960011156 A KR 19960011156A KR 970072773 A KR970072773 A KR 970072773A
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South Korea
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modem
scu
comparing
latch
communication system
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KR1019960011156A
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KR0183269B1 (en
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신영호
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유기범
대우통신 주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18519—Operations control, administration or maintenance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18517—Transmission equipment in earth stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18528—Satellite systems for providing two-way communications service to a network of fixed stations, i.e. fixed satellite service or very small aperture terminal [VSAT] system

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

본 발명은 인공위성을 이용한 통신 시스템에서 가입자간 통신에 필요한 유효(IDLE)모뎀을 검색함에 있어 먼저 소정 갯수 단위로 모뎀상태 데이터를 묶어 그 내부에 유효 모뎀이 있는지 여부를 확인한 후, 그 결과에 따라 세부적으로 각 모뎀별 사용가능 여부를 확인함으로써 유효모뎀검색을 보다 빠르게 실행할 수 있도록 된 위성통신 시스템의 유효모뎀 검색방법 및 그 장치에 관한 것으로 상기 중앙제어국은 모뎀의 이용상태가 저장되는 모뎀정보 저장수단과, 독출된 모뎀상태 데이터를 일시 저장하는 래치, 이 래치에 일시 등록된 데이터가 모두 제1레벨인지를 비교 판정하여 그 결과에 따라 소정 판정신호를 출력하는 비교판정수단 및 이 비교판정수단으로부터 출력되는 신호의 레벨에 따라 각 모뎀별 유효모뎀여부를 검색하도록 제어하는 제어수단을 포함하여 구성된 것을 특징으로 한다.In searching for an effective (IDLE) modem required for communication between subscribers in a communication system using a satellite, first, the modem status data is grouped in a predetermined number of units, and it is checked whether there is an effective modem in the modem. The modem control information is stored in the modem information storing means for storing the use state of the modem, and the modem control information is stored in the modem information storing means, A comparator for comparing the data temporarily stored in the latch to determine whether the data temporarily stored in the latch are all at the first level and outputting a predetermined determination signal in accordance with the comparison result; Control means for controlling the modem to detect whether or not the modem is effective according to the level of the signal .

Description

위성통신 시스템의 유효 모뎀(SCU) 검색방법 및 그 장치.Method and apparatus for searching for an effective modem (SCU) in a satellite communication system.

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제5도는 본 발명의 일실시예에 따른 위성 통신 시스템에 있어서의 네트워크제어부(40)의 구성을 나타낸 블럭 구성도, 제6도는 본 발명에 따른 위성통신 시스템의 유효 모뎀(SCU)검색 및 모뎀 할당 동작을 설명하기 위한 플로우챠트, 제7도는 본 발명의 2실시예에 따른 위성통신 시스템에 있어서의 네트워크제어부(40)의 구성을 나타낸 블럭 구성도, 제8도는 제7도에 도시된 모뎀상태 저장부(48)의 메모리 맵도.FIG. 5 is a block diagram showing the configuration of the network control unit 40 in the satellite communication system according to the embodiment of the present invention. FIG. 6 is a block diagram showing the configuration of the effective modem (SCU) 7 is a block diagram showing the configuration of the network control unit 40 in the satellite communication system according to the second embodiment of the present invention. FIG. 8 is a flowchart showing the configuration of the modem status storage The memory map of the portion 48 is also shown.

Claims (4)

각각 다수의 가입자와 결합되는 다수의 기지국을 인공위성을 통해 결합하여 임의의 기지국간에 통신을 실행 할 수 있도록 된 위성통신 시스템에 있어서, 임의의 기지국의 호출요구가 있게 되면 소정 바이트 단위의 모뎀상태정보를 일시에 독출하여 래치하는 모뎀상태정보래치단계와, 래치된 모뎀상태데이터가 모두'1'인지를비교판정하는 비교판정단계, 비교판정결과에 따라 각 모뎀별 유효모뎀 여부를 확인하는 유효모뎀여부확인단계를 포함하여 구성된 것을 특징으로 하는 위성통신 시스템의 유효 모뎀 검색방법.A satellite communication system in which a plurality of base stations each combined with a plurality of subscribers are combined through an artificial satellite to perform communication between arbitrary base stations, A comparing and judging step of comparing and judging whether the latched modem status data is '1' or not, a comparing and judging step of comparing whether the latched modem status data is '1' The method comprising the steps of: (a) 제1항에 있어서, 상기 모뎀상태정보래치단계 실행전에 1차적으로 정상동작 모뎀(SCU)을 가려내기 위한 정상모뎀 확인단계를 추가로 포함하여 구성된 것을 특징으로 하는 위성통신 시스템의 유효 모뎀 검색방법.2. The method of claim 1, further comprising a normal modem checking step of firstly removing a normal operation modem (SCU) before executing the modem status information latch step. 각각 다수의 가입자와 결합되는 다수의 기지국과, 각 기지국간의 통화채널을 제공하기 위한 인공위성 및 통화요구가 있는 기지국에 대해 사용가능한 모뎀(SCU)을 할당제어하는 중앙제어국을 구비한 위성통신 시스템에 있어서 상기 중앙제어국은 모뎀의 이용상태가 저장되는 모뎀정보 저장수단과 독출된 모뎀상태 데이터를 일시 저장하는 래치, 이 래치에 일시 등록된 데이터가 모두 제1레벨인지를 비교판정하여 그 결과에 따라 소정 판정신호를 출력하는 비교판정수단, 및 이 비교판정수단으로부터 출력되는 신호의 레벨에 따라 각 모뎀별 유효모뎀여부를 검색하도록 제어하는 제어수단을 포함하여 구성된 것을 특징으로 하는 위성통신 시스템의 유효 모뎀 검색장치.A satellite communication system including a plurality of base stations each associated with a plurality of subscribers, and a central control station for allocating and controlling a modem (SCU) usable for a base station having a satellite and a call request for providing a communication channel between each base station Wherein the central control station comprises: modem information storage means for storing the modem usage status; a latch for temporarily storing the modem status data read; and a memory for temporarily storing data temporarily registered in the latch, And a control means for controlling to search for an effective modem according to the level of the signal outputted from the comparison determination means, Search device. 제3항에 있어서, 정상동작 모뎀(SCU)을 별도로 관리하기 위해 모뎀의 정상 동작 상태 여부를 나타내는 동작상태 정보를 저장하는 모뎀상태 저장부를 추가로 포함하여 구성된 것을 특징으로 하는 위성통신 시스템의 유효 모뎀 검색장치.4. The system of claim 3, further comprising a modem state storage unit for storing operation state information indicating whether the modem is in a normal operation state for separately managing a normal operation modem (SCU) Search device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960011156A 1996-04-13 1996-04-13 An usable modem searching method of satellite communication system Expired - Fee Related KR0183269B1 (en)

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