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FI20050296A - Radiotelephone system for long distance subscribers - Google Patents

Radiotelephone system for long distance subscribers Download PDF

Info

Publication number
FI20050296A
FI20050296A FI20050296A FI20050296A FI20050296A FI 20050296 A FI20050296 A FI 20050296A FI 20050296 A FI20050296 A FI 20050296A FI 20050296 A FI20050296 A FI 20050296A FI 20050296 A FI20050296 A FI 20050296A
Authority
FI
Finland
Prior art keywords
modems
radiotelephone system
long distance
base station
sync signal
Prior art date
Application number
FI20050296A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI116766B (en
Inventor
David M Cooley
John D Kaewell
Mark A Lemmo
David Vessal
Joseph J Digiovanni
Scott D Kurtz
Michael W Regensburg
Eric Johns
Original Assignee
Interdigital Tech 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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of FI20050296A publication Critical patent/FI20050296A/en
Application granted granted Critical
Publication of FI116766B publication Critical patent/FI116766B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
    • 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
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • 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
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2656—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/14—WLL [Wireless Local Loop]; RLL [Radio Local Loop]
    • 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
    • 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
    • H04W88/02—Terminal devices
    • H04W88/021—Terminal devices adapted for Wireless Local Loop operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1607—Supply circuits
    • H04B1/1615—Switching on; Switching off, e.g. remotely
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • 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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H04W74/0891—Non-scheduled access, e.g. ALOHA using a dedicated channel for access for synchronized 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

The present invention provides a method of minimizing synchronization delay in a radiotelephone system between a modular subscriber cluster communicating with a common base station, the modular subscriber cluster receiving repetitive time slots from the base station and having a plurality of frequency-agile modems, the method comprising the steps of: synchronizing a selected one of the modems to a selected time slot of the received time slots; generating a frame sync signal from said selected modem; and distributing said frame sync signal to remaining ones of the plurality of modems.
FI20050296A 1993-09-30 2005-03-21 Radio telephone system for remote subscriber groups FI116766B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/129,444 US5546383A (en) 1993-09-30 1993-09-30 Modularly clustered radiotelephone system
US12944493 1993-09-30
PCT/US1994/008170 WO1995009511A2 (en) 1993-09-30 1994-07-21 Radiotelephone system for groups of remote subscribers
US9408170 1994-07-21

Publications (2)

Publication Number Publication Date
FI20050296A true FI20050296A (en) 2005-03-21
FI116766B FI116766B (en) 2006-02-15

Family

ID=22439974

Family Applications (6)

Application Number Title Priority Date Filing Date
FI961444A FI113605B (en) 1993-09-30 1996-03-29 Radio telephone system for remote subscriber groups
FI20040117A FI115692B (en) 1993-09-30 2004-01-28 Radiotelephone system for long distance subscribers
FI20050296A FI116766B (en) 1993-09-30 2005-03-21 Radio telephone system for remote subscriber groups
FI20051275A FI117781B (en) 1993-09-30 2005-12-12 Radio telephone system for remote subscriber groups
FI20061051A FI119091B (en) 1993-09-30 2006-11-30 Subscriber cluster unit for wireless communication system
FI20080285A FI20080285A (en) 1993-09-30 2008-04-15 Radio telephone system for remote subscriber groups

Family Applications Before (2)

Application Number Title Priority Date Filing Date
FI961444A FI113605B (en) 1993-09-30 1996-03-29 Radio telephone system for remote subscriber groups
FI20040117A FI115692B (en) 1993-09-30 2004-01-28 Radiotelephone system for long distance subscribers

Family Applications After (3)

Application Number Title Priority Date Filing Date
FI20051275A FI117781B (en) 1993-09-30 2005-12-12 Radio telephone system for remote subscriber groups
FI20061051A FI119091B (en) 1993-09-30 2006-11-30 Subscriber cluster unit for wireless communication system
FI20080285A FI20080285A (en) 1993-09-30 2008-04-15 Radio telephone system for remote subscriber groups

Country Status (17)

Country Link
US (8) US5546383A (en)
EP (2) EP0724815B1 (en)
JP (4) JP3596618B2 (en)
KR (1) KR100297011B1 (en)
AU (1) AU683683B2 (en)
BR (1) BR9407730A (en)
CA (1) CA2172972C (en)
DE (2) DE724815T1 (en)
DK (1) DK0724815T3 (en)
FI (6) FI113605B (en)
HU (1) HU215896B (en)
NO (2) NO315889B1 (en)
PL (1) PL175023B1 (en)
RO (3) RO119980B1 (en)
RU (2) RU2246185C2 (en)
UA (1) UA45326C2 (en)
WO (1) WO1995009511A2 (en)

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