JPS5710544A - Satellite communication system and communication satellite device - Google Patents

Satellite communication system and communication satellite device

Info

Publication number
JPS5710544A
JPS5710544A JP8476180A JP8476180A JPS5710544A JP S5710544 A JPS5710544 A JP S5710544A JP 8476180 A JP8476180 A JP 8476180A JP 8476180 A JP8476180 A JP 8476180A JP S5710544 A JPS5710544 A JP S5710544A
Authority
JP
Japan
Prior art keywords
memory
satellite
synchronizing
changeover
data
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.)
Granted
Application number
JP8476180A
Other languages
Japanese (ja)
Other versions
JPS6151453B2 (en
Inventor
Toshitsune Hotsuta
Yukio Takimoto
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8476180A priority Critical patent/JPS5710544A/en
Priority to US06/275,706 priority patent/US4398291A/en
Priority to EP81104866A priority patent/EP0042623B1/en
Priority to DE8181104866T priority patent/DE3164139D1/en
Publication of JPS5710544A publication Critical patent/JPS5710544A/en
Publication of JPS6151453B2 publication Critical patent/JPS6151453B2/ja
Granted 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
    • H04B7/2046—SS-TDMA, TDMA satellite switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

PURPOSE:To enable the format change of an earth station, without causing short break of signal during relay, by making format change in synchronizing with the superframe of a satellite. CONSTITUTION:An output of receivers 9-12 receiving a reception signal is inputted to a switch matrix 17, transmitters 13-16 are connected in time division with a memory data of a connection control section 18 and the synchronizing window transmitting the synchronizing burst and the data window transmitting the data burst are formed. Further, the switch matrix 17 is changed over with the memory content of the section 18. When this memory switching command is received, the memory changeover is made at the head of the superframe immediately after the reception. On the other hand, a line managing station announces in advance that the memory changeover of satellites is made to each earth station by using the controlling data line, and transmits the control signal so that the changeover at the satellites is made with the same superframe.
JP8476180A 1980-06-23 1980-06-23 Satellite communication system and communication satellite device Granted JPS5710544A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP8476180A JPS5710544A (en) 1980-06-23 1980-06-23 Satellite communication system and communication satellite device
US06/275,706 US4398291A (en) 1980-06-23 1981-06-22 Satellite communication system for switching formats with reference to super-frame time slots
EP81104866A EP0042623B1 (en) 1980-06-23 1981-06-23 Satellite communication system for switching formats with reference to super-frame time slots
DE8181104866T DE3164139D1 (en) 1980-06-23 1981-06-23 Satellite communication system for switching formats with reference to super-frame time slots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8476180A JPS5710544A (en) 1980-06-23 1980-06-23 Satellite communication system and communication satellite device

Publications (2)

Publication Number Publication Date
JPS5710544A true JPS5710544A (en) 1982-01-20
JPS6151453B2 JPS6151453B2 (en) 1986-11-08

Family

ID=13839659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8476180A Granted JPS5710544A (en) 1980-06-23 1980-06-23 Satellite communication system and communication satellite device

Country Status (1)

Country Link
JP (1) JPS5710544A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007511974A (en) * 2003-11-19 2007-05-10 韓國電子通信研究院 Apparatus and method for switch control of satellite repeater for multi-beam communication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007511974A (en) * 2003-11-19 2007-05-10 韓國電子通信研究院 Apparatus and method for switch control of satellite repeater for multi-beam communication

Also Published As

Publication number Publication date
JPS6151453B2 (en) 1986-11-08

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