JPS5741045A - Selective calling communication system - Google Patents

Selective calling communication system

Info

Publication number
JPS5741045A
JPS5741045A JP55116387A JP11638780A JPS5741045A JP S5741045 A JPS5741045 A JP S5741045A JP 55116387 A JP55116387 A JP 55116387A JP 11638780 A JP11638780 A JP 11638780A JP S5741045 A JPS5741045 A JP S5741045A
Authority
JP
Japan
Prior art keywords
mode
receiver
synchronizing
word
receiving operation
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
JP55116387A
Other languages
Japanese (ja)
Other versions
JPS6358417B2 (en
Inventor
Tatsuyuki Hori
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP55116387A priority Critical patent/JPS5741045A/en
Publication of JPS5741045A publication Critical patent/JPS5741045A/en
Publication of JPS6358417B2 publication Critical patent/JPS6358417B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

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

Abstract

PURPOSE:To reduce the power consumption and also to increase a response speed, by providing a means for changing the duty ratio of an intermittent receiving operation, on a receiver. CONSTITUTION:A selective calling signal is divided into plural groups G1-Gn, and is sent out in series. Each group contains a synchronizing word and plural calling words, and the synchronizing word is constituted of a frame synchronizing code and a group synchronizing code. A receiver executes an intermittent receiving operation of a mode B or a mode C as shown in the figure in accordance with said synchronizing code. In case of the mode C, the receiver becomes capable of receiving by the timing of the group G1 and Gk, and when a calling word is sent out by this timing from the transmission side, the response speed becomes two times as high as the mode B. Subsequently, the duty ratio of the intermittent receiving operation is changed over by writing in advance mode switching signals corresponding to the number of modes, in a P-ROM of the receiver, and selecting one of them in accordance with a signal from the transmission side.
JP55116387A 1980-08-26 1980-08-26 Selective calling communication system Granted JPS5741045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55116387A JPS5741045A (en) 1980-08-26 1980-08-26 Selective calling communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55116387A JPS5741045A (en) 1980-08-26 1980-08-26 Selective calling communication system

Publications (2)

Publication Number Publication Date
JPS5741045A true JPS5741045A (en) 1982-03-06
JPS6358417B2 JPS6358417B2 (en) 1988-11-15

Family

ID=14685755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55116387A Granted JPS5741045A (en) 1980-08-26 1980-08-26 Selective calling communication system

Country Status (1)

Country Link
JP (1) JPS5741045A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60145735A (en) * 1984-01-09 1985-08-01 Nec Corp Battery saving system
JPS60213154A (en) * 1984-04-09 1985-10-25 Kanda Tsushin Kogyo Kk Data communication system
JPS61281642A (en) * 1985-05-22 1986-12-12 Sanyo Electric Co Ltd Remote control equipment
JPS63180225A (en) * 1987-01-22 1988-07-25 Nippon Telegr & Teleph Corp <Ntt> Selective call receiver
US4783654A (en) * 1985-01-14 1988-11-08 Nec Corporation Radio paging system capable of transmitting common information and receiver therefor
US4818987A (en) * 1985-12-18 1989-04-04 Nec Corporation Selective paging receiver with message display
JPH0198332A (en) * 1987-10-09 1989-04-17 Nippon Telegr & Teleph Corp <Ntt> Radio selective call system
JPH01174027A (en) * 1987-12-28 1989-07-10 Matsushita Electric Ind Co Ltd Paging receiver
JPH02190035A (en) * 1989-01-19 1990-07-26 Fujitsu Ltd Radio call system
US5230084A (en) * 1990-12-06 1993-07-20 Motorola, Inc. Selective call receiver having extended battery saving capability
US5257019A (en) * 1989-11-03 1993-10-26 Motorola, Inc. Satellite selective call signalling system
JPH0946749A (en) * 1995-07-27 1997-02-14 Nec Corp Intermittent reception circuit and intermittent reception method in selective radio call receiver

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60145735A (en) * 1984-01-09 1985-08-01 Nec Corp Battery saving system
JPH0369454B2 (en) * 1984-04-09 1991-11-01 Kanda Tsushin Kogyo Kk
JPS60213154A (en) * 1984-04-09 1985-10-25 Kanda Tsushin Kogyo Kk Data communication system
US4783654A (en) * 1985-01-14 1988-11-08 Nec Corporation Radio paging system capable of transmitting common information and receiver therefor
JPS61281642A (en) * 1985-05-22 1986-12-12 Sanyo Electric Co Ltd Remote control equipment
US4818987A (en) * 1985-12-18 1989-04-04 Nec Corporation Selective paging receiver with message display
JPS63180225A (en) * 1987-01-22 1988-07-25 Nippon Telegr & Teleph Corp <Ntt> Selective call receiver
JPH0198332A (en) * 1987-10-09 1989-04-17 Nippon Telegr & Teleph Corp <Ntt> Radio selective call system
JPH01174027A (en) * 1987-12-28 1989-07-10 Matsushita Electric Ind Co Ltd Paging receiver
JPH02190035A (en) * 1989-01-19 1990-07-26 Fujitsu Ltd Radio call system
US5257019A (en) * 1989-11-03 1993-10-26 Motorola, Inc. Satellite selective call signalling system
US5230084A (en) * 1990-12-06 1993-07-20 Motorola, Inc. Selective call receiver having extended battery saving capability
JPH0946749A (en) * 1995-07-27 1997-02-14 Nec Corp Intermittent reception circuit and intermittent reception method in selective radio call receiver

Also Published As

Publication number Publication date
JPS6358417B2 (en) 1988-11-15

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