JPS57207443A - Exchanger system for satellite communication channel - Google Patents

Exchanger system for satellite communication channel

Info

Publication number
JPS57207443A
JPS57207443A JP9316981A JP9316981A JPS57207443A JP S57207443 A JPS57207443 A JP S57207443A JP 9316981 A JP9316981 A JP 9316981A JP 9316981 A JP9316981 A JP 9316981A JP S57207443 A JPS57207443 A JP S57207443A
Authority
JP
Japan
Prior art keywords
channel
station
control channel
calling
frequencies
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
JP9316981A
Other languages
Japanese (ja)
Inventor
Yasuhisa Shimada
Satoru Ono
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 JP9316981A priority Critical patent/JPS57207443A/en
Publication of JPS57207443A publication Critical patent/JPS57207443A/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
    • H04B7/208—Frequency-division multiple access [FDMA]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To simplify the method of exchange, and to make a device small-sized and light in weight, by commonly using transmission and reception frequencies for channel allocation in all terminal staions and connecting a channel with an arbitrary objective terminal station. CONSTITUTION:A frequency f0 is assigned to a common control channel 31 of a satellite 10 and frequencies fa-ff are assigned to the transmission of each earth station 1-6. When a call takes place, calling information is transmitted by using the channel 31 in frequency f0. All the stations 1-6 always receive the channel 31 and a called station receiving the calling information through the channel 31 transmits a confirming signal which informs the reception of the calling information by using the channels in the frequencies fa-ff. A calling station receiving the confirmation signal through the channels of fa-ff uses a frequency corresponding to the station number and starts communication. Thus, the common control channel is used for the calling station only, allowing to decrease and simplify the communication device for the common control channel, and the common use between the communication device for the control channel and the communication device can be attained.
JP9316981A 1981-06-17 1981-06-17 Exchanger system for satellite communication channel Pending JPS57207443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9316981A JPS57207443A (en) 1981-06-17 1981-06-17 Exchanger system for satellite communication channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9316981A JPS57207443A (en) 1981-06-17 1981-06-17 Exchanger system for satellite communication channel

Publications (1)

Publication Number Publication Date
JPS57207443A true JPS57207443A (en) 1982-12-20

Family

ID=14075062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9316981A Pending JPS57207443A (en) 1981-06-17 1981-06-17 Exchanger system for satellite communication channel

Country Status (1)

Country Link
JP (1) JPS57207443A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5675732A (en) * 1995-05-08 1997-10-07 Lucent Technologies Inc. Dynamic channel assignment for TCP/IP data transmitted via cable television channels by managing the channels as a single sub network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5675732A (en) * 1995-05-08 1997-10-07 Lucent Technologies Inc. Dynamic channel assignment for TCP/IP data transmitted via cable television channels by managing the channels as a single sub network

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