CA2496569A1 - Radiotelephone system for groups of remote subscribers - Google Patents

Radiotelephone system for groups of remote subscribers Download PDF

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Publication number
CA2496569A1
CA2496569A1 CA002496569A CA2496569A CA2496569A1 CA 2496569 A1 CA2496569 A1 CA 2496569A1 CA 002496569 A CA002496569 A CA 002496569A CA 2496569 A CA2496569 A CA 2496569A CA 2496569 A1 CA2496569 A1 CA 2496569A1
Authority
CA
Canada
Prior art keywords
modems
time slot
calls
powered
base station
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
CA002496569A
Other languages
French (fr)
Other versions
CA2496569C (en
Inventor
David M. Cooley
Joseph J. Digiovanni
John D. Kaewell
Scott D. Kurtz
Mark A. Lemmo
Michael W. Regensburg
David Vessal
Eric Johns
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.)
InterDigital Technology Corp
Original Assignee
Interdigital Technology Corporation
David M. Cooley
Joseph J. Digiovanni
John D. Kaewell
Scott D. Kurtz
Mark A. Lemmo
Michael W. Regensburg
David Vessal
Eric Johns
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
Priority claimed from US08/129,444 external-priority patent/US5546383A/en
Application filed by Interdigital Technology Corporation, David M. Cooley, Joseph J. Digiovanni, John D. Kaewell, Scott D. Kurtz, Mark A. Lemmo, Michael W. Regensburg, David Vessal, Eric Johns filed Critical Interdigital Technology Corporation
Priority claimed from CA002350879A external-priority patent/CA2350879C/en
Publication of CA2496569A1 publication Critical patent/CA2496569A1/en
Application granted granted Critical
Publication of CA2496569C publication Critical patent/CA2496569C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • 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)
  • Time-Division Multiplex Systems (AREA)

Abstract

A power-conserving time division multiple access (TDMA) radiotelephone system is disclosed in which a cluster of subscriber stations, remote from a base station, employs a common pool of frequency-agile modems each of which digitally synthesizes, on a time slot-by-time slot basis, the different channel-identifying intermediate needed to support communications between several of the subscriber stations and the base station. Power conservation is facilitated inter alia by controlling the assignment of modems to calls, maintaining unassigned modems in a powered-down state and by controlling the number of calls using the same time slot. Delay in assigning a powered-down modem to a call is eliminated by making available to all modems the highest quality synchronization information obtained by any of the active modems.
CA002496569A 1993-09-30 1994-07-21 Radiotelephone system for groups of remote subscribers Expired - Lifetime CA2496569C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/129,444 1993-09-30
US08/129,444 US5546383A (en) 1993-09-30 1993-09-30 Modularly clustered radiotelephone system
CA002350879A CA2350879C (en) 1993-09-30 1994-07-21 Radiotelephone system for groups of remote subscribers

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002350879A Division CA2350879C (en) 1993-09-30 1994-07-21 Radiotelephone system for groups of remote subscribers

Publications (2)

Publication Number Publication Date
CA2496569A1 true CA2496569A1 (en) 1995-04-06
CA2496569C CA2496569C (en) 2008-09-23

Family

ID=34394950

Family Applications (3)

Application Number Title Priority Date Filing Date
CA002496569A Expired - Lifetime CA2496569C (en) 1993-09-30 1994-07-21 Radiotelephone system for groups of remote subscribers
CA002494336A Abandoned CA2494336A1 (en) 1993-09-30 1994-07-21 Radiotelephone system for groups of remote subscribers
CA002493967A Expired - Lifetime CA2493967C (en) 1993-09-30 1994-07-21 Radiotelephone system for groups of remote subscribers

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA002494336A Abandoned CA2494336A1 (en) 1993-09-30 1994-07-21 Radiotelephone system for groups of remote subscribers
CA002493967A Expired - Lifetime CA2493967C (en) 1993-09-30 1994-07-21 Radiotelephone system for groups of remote subscribers

Country Status (1)

Country Link
CA (3) CA2496569C (en)

Also Published As

Publication number Publication date
CA2493967C (en) 2009-01-20
CA2496569C (en) 2008-09-23
CA2494336A1 (en) 1995-04-06
CA2493967A1 (en) 1995-04-06

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20140721