JPS5754440A - Encryption control system in mobile communication system - Google Patents

Encryption control system in mobile communication system

Info

Publication number
JPS5754440A
JPS5754440A JP55129130A JP12913080A JPS5754440A JP S5754440 A JPS5754440 A JP S5754440A JP 55129130 A JP55129130 A JP 55129130A JP 12913080 A JP12913080 A JP 12913080A JP S5754440 A JPS5754440 A JP S5754440A
Authority
JP
Japan
Prior art keywords
station
encryption
mobile set
zone
channel
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
JP55129130A
Other languages
Japanese (ja)
Other versions
JPS5911211B2 (en
Inventor
Takeshi Hattori
Hiroshi Inaba
Toshio Suzuki
Kensho Yoshikawa
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 JP55129130A priority Critical patent/JPS5911211B2/en
Publication of JPS5754440A publication Critical patent/JPS5754440A/en
Publication of JPS5911211B2 publication Critical patent/JPS5911211B2/en
Expired 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

Landscapes

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

Abstract

PURPOSE:To keep encryption even if a mobile set makes zone transfer during call, by storing the presence/absence of encryption information in channel switching memories provided with a radio line control station, corresponding to a mobile set. CONSTITUTION:When a mobile set M starts a call at a zone 1 and requests encryption, the encryption request signal is transmitted to a radio base station A. The station A transmits the use of encryption by the mobile set to a radio line control station D through intra-station line 4. The station D stores the information of presence of encryption of a memory for channel switching during a call. When the mobile set M transfers from the zone 1 to a zone i, the control for channel switching is made at the station D, a vacant channel is designated at a ratio base station I and the mobile set M switches the channel to a new channel. In this case, the station transmits the information to the station I when the mobile set M uses encryption. Thus, the mobile set M can keep encryption.
JP55129130A 1980-09-19 1980-09-19 Confidential control method in mobile communication system Expired JPS5911211B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55129130A JPS5911211B2 (en) 1980-09-19 1980-09-19 Confidential control method in mobile communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55129130A JPS5911211B2 (en) 1980-09-19 1980-09-19 Confidential control method in mobile communication system

Publications (2)

Publication Number Publication Date
JPS5754440A true JPS5754440A (en) 1982-03-31
JPS5911211B2 JPS5911211B2 (en) 1984-03-14

Family

ID=15001833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55129130A Expired JPS5911211B2 (en) 1980-09-19 1980-09-19 Confidential control method in mobile communication system

Country Status (1)

Country Link
JP (1) JPS5911211B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2656155B2 (en) * 1990-07-20 1997-09-24 エリクソン インコーポレイテッド Resynchronization of encryption system during handoff

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2656155B2 (en) * 1990-07-20 1997-09-24 エリクソン インコーポレイテッド Resynchronization of encryption system during handoff

Also Published As

Publication number Publication date
JPS5911211B2 (en) 1984-03-14

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