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WO1998000992A3 - Improvements in or relating to a method and apparatus for determining symbol timing in a wireless communications system, also using a reusable control channel, and reducing power - Google Patents

Improvements in or relating to a method and apparatus for determining symbol timing in a wireless communications system, also using a reusable control channel, and reducing power Download PDF

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Publication number
WO1998000992A3
WO1998000992A3 PCT/US1997/011485 US9711485W WO9800992A3 WO 1998000992 A3 WO1998000992 A3 WO 1998000992A3 US 9711485 W US9711485 W US 9711485W WO 9800992 A3 WO9800992 A3 WO 9800992A3
Authority
WO
WIPO (PCT)
Prior art keywords
control channel
voice
wireless
reducing power
relating
Prior art date
Application number
PCT/US1997/011485
Other languages
French (fr)
Other versions
WO1998000992A2 (en
Inventor
Allen Jackson
David Hochman
Parminder Sikand
Rami Hadar
Jay Klein
Shmuel Arditi
Shmuel Bachinski
Yaron Knobel
Gadi Shor
Original Assignee
Harris Corp
Allen Jackson
David Hochman
Parminder Sikand
Rami Hadar
Jay Klein
Shmuel Arditi
Shmuel Bachinski
Yaron Knobel
Gadi Shor
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 US08/671,733 external-priority patent/US5870389A/en
Priority claimed from US08/672,269 external-priority patent/US5943325A/en
Priority claimed from US08/671,724 external-priority patent/US6023460A/en
Application filed by Harris Corp, Allen Jackson, David Hochman, Parminder Sikand, Rami Hadar, Jay Klein, Shmuel Arditi, Shmuel Bachinski, Yaron Knobel, Gadi Shor filed Critical Harris Corp
Priority to AU35890/97A priority Critical patent/AU3589097A/en
Priority to IL12763597A priority patent/IL127635A0/en
Priority to EP97932429A priority patent/EP0909520A2/en
Priority to JP50442098A priority patent/JP2001509974A/en
Publication of WO1998000992A2 publication Critical patent/WO1998000992A2/en
Publication of WO1998000992A3 publication Critical patent/WO1998000992A3/en

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
    • H04B7/2643—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
    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] 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 leader and terminal is follower
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower 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. Transmission Power Control [TPC] 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] 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
    • H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
    • 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
    • H04W84/16—WPBX [Wireless Private Branch Exchange]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Communication Control (AREA)

Abstract

A wireless communication system in which a base station communicates with plural mobile stations using a control channel and plural voice (or data) channels, and uses the control channel as a voice channel whenever the other voice channels are in use and a request is received from a mobile station for another voice channel. Also a method and apparatus for reducing power consumed by mobile, wireless units, such as personal communications systems or wireless PBX telephones, by reducing the frequency with which various circuits within the units are fully energized. During on-going voice communications between a base station and a wireless unit, the wireless unit reduces the frequency of its references to a control channel and may eliminate such references altogether. Moreover a method and apparatus for determining the timing of symbols within a multiple symbol telecommunicated message by evaluating signal characteristics in both the preamble and data portions of a message. Samples of a received signal are taken at a periodic basis and a predetermined characteristic of the signal is evaluated for each sample.
PCT/US1997/011485 1996-06-28 1997-06-30 Improvements in or relating to a method and apparatus for determining symbol timing in a wireless communications system, also using a reusable control channel, and reducing power WO1998000992A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU35890/97A AU3589097A (en) 1996-06-28 1997-06-30 Improvements in or relating to a method and apparatus for determining symbol timing in a wireless communications system, also using a reusable control channel, and reducing power
IL12763597A IL127635A0 (en) 1996-06-28 1997-06-30 Improvements in or relating to a method and apparatus for determining symbol timing in a wireless communications system also using a reusable control channel and reducing power
EP97932429A EP0909520A2 (en) 1996-06-28 1997-06-30 Improvements in or relating to a method and apparatus for determining symbol timing in a wireless communications system, also using a reusable control channel, and reducing power
JP50442098A JP2001509974A (en) 1996-06-28 1997-06-30 Method or apparatus for symbol timing determination in a wireless communication system using a reusable control channel and reducing power or improvements thereto

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US08/671,733 US5870389A (en) 1996-06-28 1996-06-28 Method and apparatus for reducing power consumption in wireless, mobile communicating devices
US08/672,269 1996-06-28
US08/671,724 1996-06-28
US08/671,733 1996-06-28
US08/672,269 US5943325A (en) 1996-06-28 1996-06-28 Method and apparatus for determining symbol timing in a wireless communications system
US08/671,724 US6023460A (en) 1996-06-28 1996-06-28 Wireless communications system and method using a reusable control channel
CA002259647A CA2259647A1 (en) 1996-06-28 1997-06-30 Improvements in or relating to a method and apparatus for determining symbol timing in a wireless communications system, also using a reusable control channel, and reducing power

Publications (2)

Publication Number Publication Date
WO1998000992A2 WO1998000992A2 (en) 1998-01-08
WO1998000992A3 true WO1998000992A3 (en) 1998-06-25

Family

ID=27427506

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/011485 WO1998000992A2 (en) 1996-06-28 1997-06-30 Improvements in or relating to a method and apparatus for determining symbol timing in a wireless communications system, also using a reusable control channel, and reducing power

Country Status (6)

Country Link
EP (1) EP0909520A2 (en)
JP (1) JP2001509974A (en)
AU (1) AU3589097A (en)
CA (1) CA2259647A1 (en)
IL (1) IL127635A0 (en)
WO (1) WO1998000992A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9386426B2 (en) 2008-06-16 2016-07-05 Aristocrat Technologies Australia Pty Limited Messaging system and method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6453156B1 (en) 1998-09-24 2002-09-17 Ericsson Inc. Scanning radio receiver for a wireless communication system
DE102004014191A1 (en) * 2004-03-23 2005-10-20 Siemens Ag Method for signal transmission in a radio communication system
US7720179B2 (en) 2005-05-27 2010-05-18 Marvell World Trade Ltd. Method for timing detection
US8203464B2 (en) * 2009-09-01 2012-06-19 Harris Corporation Registration of a new node to a meter reading wireless mesh network and associated system

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EP0268375A2 (en) * 1986-11-18 1988-05-25 Nortel Networks Corporation Private cellular system
EP0283683A2 (en) * 1987-03-20 1988-09-28 Hitachi, Ltd. Portable wireless communication systems and method
WO1991007831A1 (en) * 1989-11-15 1991-05-30 Telefonaktiebolaget Lm Ericsson A method of determining sampling time points
GB2249922A (en) * 1990-08-09 1992-05-20 Matsushita Electric Industrial Co Ltd Dynamic channel allocation method
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WO1994023544A1 (en) * 1993-03-30 1994-10-13 Nokia Telecommunications Oy Method of searching for a signalling channel in a radio system
WO1995012258A1 (en) * 1993-10-29 1995-05-04 Pacific Communication Sciences, Inc. A frame structure using consecutive slot assignments for mobile communications
WO1995012957A1 (en) * 1993-11-04 1995-05-11 Ericsson Inc. Radio personal communications system
US5418838A (en) * 1992-10-26 1995-05-23 U.S. Philips Corporation Communications system, switching exchange and line card
EP0654952A2 (en) * 1993-11-23 1995-05-24 AT&T Corp. Method and apparatus for dynamic channel allocation for wireless communication
US5420911A (en) * 1991-08-29 1995-05-30 Telefonaktiebolaget L M Ericsson Cellular telephone for monitoring analog and digital control channels
GB2285556A (en) * 1993-12-23 1995-07-12 Motorola Ltd Personal base station
WO1995023487A1 (en) * 1994-02-24 1995-08-31 Gte Mobile Communications Service Corporation Cellular radiotelephone system with remotely programmed mobile stations
EP0690590A1 (en) * 1994-06-29 1996-01-03 Sony Corporation Communication apparatus for TDMA system with transmission of speech and control data
GB2290924A (en) * 1994-07-01 1996-01-10 Motorola Inc Establishing a communciation link between a portable radio and a base station
WO1997006620A1 (en) * 1995-08-08 1997-02-20 Philips Electronics N.V. Method of, and apparatus for, symbol timing recovery

Patent Citations (18)

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Publication number Priority date Publication date Assignee Title
EP0268375A2 (en) * 1986-11-18 1988-05-25 Nortel Networks Corporation Private cellular system
EP0283683A2 (en) * 1987-03-20 1988-09-28 Hitachi, Ltd. Portable wireless communication systems and method
WO1991007831A1 (en) * 1989-11-15 1991-05-30 Telefonaktiebolaget Lm Ericsson A method of determining sampling time points
GB2249922A (en) * 1990-08-09 1992-05-20 Matsushita Electric Industrial Co Ltd Dynamic channel allocation method
EP0529859A2 (en) * 1991-08-22 1993-03-03 Nortel Networks Corporation Radio link architecture for wireless communications systems
US5420911A (en) * 1991-08-29 1995-05-30 Telefonaktiebolaget L M Ericsson Cellular telephone for monitoring analog and digital control channels
EP0554093A2 (en) * 1992-01-29 1993-08-04 Kabushiki Kaisha Toshiba Radio telecommunication apparatus
US5418838A (en) * 1992-10-26 1995-05-23 U.S. Philips Corporation Communications system, switching exchange and line card
WO1994023544A1 (en) * 1993-03-30 1994-10-13 Nokia Telecommunications Oy Method of searching for a signalling channel in a radio system
WO1995012258A1 (en) * 1993-10-29 1995-05-04 Pacific Communication Sciences, Inc. A frame structure using consecutive slot assignments for mobile communications
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WO1995012957A1 (en) * 1993-11-04 1995-05-11 Ericsson Inc. Radio personal communications system
EP0654952A2 (en) * 1993-11-23 1995-05-24 AT&T Corp. Method and apparatus for dynamic channel allocation for wireless communication
GB2285556A (en) * 1993-12-23 1995-07-12 Motorola Ltd Personal base station
WO1995023487A1 (en) * 1994-02-24 1995-08-31 Gte Mobile Communications Service Corporation Cellular radiotelephone system with remotely programmed mobile stations
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SOLLENBERGER N R ET AL: "LOW-OVERHEAD SYMBOL TIMING AND CARRIER RECOVERY FOR TDMA PORTABLE RADIO SYSTEMS", IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 38, no. 10, 1 October 1990 (1990-10-01), pages 1886 - 1892, XP000176877 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9386426B2 (en) 2008-06-16 2016-07-05 Aristocrat Technologies Australia Pty Limited Messaging system and method

Also Published As

Publication number Publication date
EP0909520A2 (en) 1999-04-21
CA2259647A1 (en) 1998-01-08
IL127635A0 (en) 1999-10-28
WO1998000992A2 (en) 1998-01-08
JP2001509974A (en) 2001-07-24
AU3589097A (en) 1998-01-21

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