JPS572139A - Satellite communication system - Google Patents

Satellite communication system

Info

Publication number
JPS572139A
JPS572139A JP7552680A JP7552680A JPS572139A JP S572139 A JPS572139 A JP S572139A JP 7552680 A JP7552680 A JP 7552680A JP 7552680 A JP7552680 A JP 7552680A JP S572139 A JPS572139 A JP S572139A
Authority
JP
Japan
Prior art keywords
small
station
circuit
size
signal
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
JP7552680A
Other languages
Japanese (ja)
Inventor
Shigeo Nakajima
Masato Mori
Shunichiro Egami
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP7552680A priority Critical patent/JPS572139A/en
Publication of JPS572139A publication Critical patent/JPS572139A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H04B7/204—Multiple access
    • H04B7/212—Time-division multiple access [TDMA]
    • H04B7/2121—Channels assignment to the different stations
    • H04B7/2123—Variable assignment, e.g. demand assignment

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To realize unification of circuit quality for each small-size earth station from a base station and in a range of a prescribed transmission power, by ceding a part of the time slot number to be given to a small-size station of a high circuit quality and thus allotting it extra to the time slot of a small-size station of a low circuit quality CONSTITUTION:At a base station, the signal received through a terminal 5 from a small-size station is demodulated by a demodulating circuit 6, and a control signal containing the circuit quality signal sent from the small-size station is separated from the information signal to be delivered to terminals 8 and 9, respectively. On the other hand, the slot number and the control signal designating the position of the slot number are supplied to a multiplex ratio circuit 2 from a time slot and time slot position designating signal generating circuit 10 and based on the circuit quality information signal of a terminal 8. Thus both the position and number of time slots are controlled in multiplexing of the signal that is applied to terminals 1-1-1-N for a small-size station.
JP7552680A 1980-06-06 1980-06-06 Satellite communication system Pending JPS572139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7552680A JPS572139A (en) 1980-06-06 1980-06-06 Satellite communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7552680A JPS572139A (en) 1980-06-06 1980-06-06 Satellite communication system

Publications (1)

Publication Number Publication Date
JPS572139A true JPS572139A (en) 1982-01-07

Family

ID=13578753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7552680A Pending JPS572139A (en) 1980-06-06 1980-06-06 Satellite communication system

Country Status (1)

Country Link
JP (1) JPS572139A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631172A (en) * 1984-05-08 1986-12-23 Nadagawa Corrosion Protecting Co., Ltd. Aluminum alloys for galvanic anode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631172A (en) * 1984-05-08 1986-12-23 Nadagawa Corrosion Protecting Co., Ltd. Aluminum alloys for galvanic anode

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