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JPS57173235A - System and device for circuit control - Google Patents

System and device for circuit control

Info

Publication number
JPS57173235A
JPS57173235A JP56058442A JP5844281A JPS57173235A JP S57173235 A JPS57173235 A JP S57173235A JP 56058442 A JP56058442 A JP 56058442A JP 5844281 A JP5844281 A JP 5844281A JP S57173235 A JPS57173235 A JP S57173235A
Authority
JP
Japan
Prior art keywords
station
fixed
circuit
mobile station
fixed stations
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
JP56058442A
Other languages
Japanese (ja)
Other versions
JPS6355820B2 (en
Inventor
Shuji Murakami
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 JP56058442A priority Critical patent/JPS57173235A/en
Publication of JPS57173235A publication Critical patent/JPS57173235A/en
Publication of JPS6355820B2 publication Critical patent/JPS6355820B2/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
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To simplify the constitution of a mobile communication system by deciding on what fixed station the system is to be connected through a circuit on a mobile station side. CONSTITUTION:Fixed stations 21-24 are connected to a center station 20 through a common transmission line 26. In the figure, 25 is a mobile station connected to one of the fixed stations 21-24 through the circuit. Those fixed stations generate individual spectral diffusion codes whose mutual relation is less in at least a signal arrival ranged, and carriers are modulated by the codes and transmitted. The mobile station reversely diffuses all of spectral diffusion codes received and then demodulated to select one of the reversely diffused signals which has maximum intensity, and then sends a circuit connection request signal to one of fixed station which has sent the selected maximum- intensity signal.
JP56058442A 1981-04-20 1981-04-20 System and device for circuit control Granted JPS57173235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56058442A JPS57173235A (en) 1981-04-20 1981-04-20 System and device for circuit control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56058442A JPS57173235A (en) 1981-04-20 1981-04-20 System and device for circuit control

Publications (2)

Publication Number Publication Date
JPS57173235A true JPS57173235A (en) 1982-10-25
JPS6355820B2 JPS6355820B2 (en) 1988-11-04

Family

ID=13084505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56058442A Granted JPS57173235A (en) 1981-04-20 1981-04-20 System and device for circuit control

Country Status (1)

Country Link
JP (1) JPS57173235A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04267638A (en) * 1990-11-07 1992-09-24 Hughes Aircraft Co Improved cellular telephone service using diffusion spectral transmission

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5060104A (en) * 1973-09-27 1975-05-23
JPS55133152A (en) * 1979-04-04 1980-10-16 Nippon Telegr & Teleph Corp <Ntt> Mobile radio callout system
JPS55135436A (en) * 1979-04-10 1980-10-22 Nippon Telegr & Teleph Corp <Ntt> Mobile communication circuit control system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5060104A (en) * 1973-09-27 1975-05-23
JPS55133152A (en) * 1979-04-04 1980-10-16 Nippon Telegr & Teleph Corp <Ntt> Mobile radio callout system
JPS55135436A (en) * 1979-04-10 1980-10-22 Nippon Telegr & Teleph Corp <Ntt> Mobile communication circuit control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04267638A (en) * 1990-11-07 1992-09-24 Hughes Aircraft Co Improved cellular telephone service using diffusion spectral transmission

Also Published As

Publication number Publication date
JPS6355820B2 (en) 1988-11-04

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