WO1998030044A3 - Channel strength measurement shifting scheme - Google Patents

Channel strength measurement shifting scheme Download PDF

Info

Publication number
WO1998030044A3
WO1998030044A3 PCT/US1997/022139 US9722139W WO9830044A3 WO 1998030044 A3 WO1998030044 A3 WO 1998030044A3 US 9722139 W US9722139 W US 9722139W WO 9830044 A3 WO9830044 A3 WO 9830044A3
Authority
WO
WIPO (PCT)
Prior art keywords
radio channel
measurements
points
different
frame periods
Prior art date
Application number
PCT/US1997/022139
Other languages
French (fr)
Other versions
WO1998030044A2 (en
WO1998030044B1 (en
Inventor
Carl Bray Toot Jr
Keith William Anderson
Original Assignee
Ericsson Ge Mobile Inc
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 Ericsson Ge Mobile Inc filed Critical Ericsson Ge Mobile Inc
Priority to AU53706/98A priority Critical patent/AU735876B2/en
Priority to BR9713803-7A priority patent/BR9713803A/en
Priority to EP97950806A priority patent/EP0950332A2/en
Publication of WO1998030044A2 publication Critical patent/WO1998030044A2/en
Publication of WO1998030044A3 publication Critical patent/WO1998030044A3/en
Publication of WO1998030044B1 publication Critical patent/WO1998030044B1/en
Priority to HK00105421A priority patent/HK1026326A1/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085Hand-off measurements
    • H04W36/0094Definition of hand-off measurement parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/382Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information

Abstract

In a radiocommunication system including at least one base station and a mobile station connected across a first radio channel to the base station, the signal strengths of the first radio channel and neighboring radio channels are measured in the mobile station to determine whether reselection to a neighboring radio channel is necessary. Each radio channel is measured at various points in a frame period or in different frame periods, the measurements occurring in different time slots. The points at which the signal strength measurements of each radio channel are made may be rotated among the different frame periods, the measurements may be made at random points in the different frame periods, or the starting times of the measurements may be rotated among or occur randomly in the different frame periods. Alternately, the signal strengths of each radio channel may be measured at different points in a single frame period. The measurements of the signal strength of the each radio channel are averaged, and the averaged measurements are compared to determine whether reselection from the first radio channel to a neighboring radio channel is necessary.
PCT/US1997/022139 1996-12-30 1997-12-12 Channel strength measurement shifting scheme WO1998030044A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU53706/98A AU735876B2 (en) 1996-12-30 1997-12-12 Channel strength measurement shifting scheme
BR9713803-7A BR9713803A (en) 1996-12-30 1997-12-12 Process for measuring signal intensities of the first radio channel and neighboring radio channels at the mobile station in a radio communication system, and, radio communication system.
EP97950806A EP0950332A2 (en) 1996-12-30 1997-12-12 Channel strength measurement shifting scheme
HK00105421A HK1026326A1 (en) 1996-12-30 2000-08-30 Channel strength measurement shifting scheme.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/774,422 1996-12-30
US08/774,422 US5995498A (en) 1996-12-30 1996-12-30 Channel strength measurement shifting scheme

Publications (3)

Publication Number Publication Date
WO1998030044A2 WO1998030044A2 (en) 1998-07-09
WO1998030044A3 true WO1998030044A3 (en) 1998-10-29
WO1998030044B1 WO1998030044B1 (en) 1998-12-23

Family

ID=25101183

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/022139 WO1998030044A2 (en) 1996-12-30 1997-12-12 Channel strength measurement shifting scheme

Country Status (8)

Country Link
US (1) US5995498A (en)
EP (1) EP0950332A2 (en)
KR (1) KR20000069824A (en)
CN (1) CN1153498C (en)
AU (1) AU735876B2 (en)
BR (1) BR9713803A (en)
HK (1) HK1026326A1 (en)
WO (1) WO1998030044A2 (en)

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FI103851B (en) * 1996-09-18 1999-09-30 Nokia Telecommunications Oy A method for facilitating measurement of a transmission level and a base station
FI106182B (en) * 1996-11-27 2000-11-30 Nokia Networks Oy A method for improving connection quality and system capacity in a cellular radio system and a cellular radio system
CN1106726C (en) * 1996-12-20 2003-04-23 西门子公司 Mobile radio apparatus and process for determining the receiving field intensity
US6625132B1 (en) 1997-11-13 2003-09-23 Nortel Networks Ltd Idle intersystem roaming determination and system reselection in a CDMA wireless communication system
US6243371B1 (en) * 1997-12-16 2001-06-05 At&T Corp. Method and apparatus for interference avoidance in a wireless communication system
US6728228B1 (en) * 1999-09-20 2004-04-27 Telefonaktiebolaget Lm Ericsson (Publ) Method and system for measuring and reporting received signal strength
EP1156609A1 (en) * 2000-05-15 2001-11-21 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Transmission quality measurement in a communication network
US7801158B2 (en) * 2000-10-16 2010-09-21 Verizon Communications Inc. Congestion and thru-put visibility and isolation
GB2379582A (en) * 2001-09-11 2003-03-12 Nokia Corp Power level detection for mobile communications
JP2003119136A (en) * 2001-10-10 2003-04-23 Mutsuyuki Kochi Differentiation inducing agent composition for malignant cell and use thereof
US7302265B1 (en) 2005-03-16 2007-11-27 Sprint Spectrum L.P. Method of selecting carrier frequency for call origination
WO2010013477A1 (en) * 2008-07-31 2010-02-04 三洋電機株式会社 Report method and access control device
WO2010013493A1 (en) * 2008-07-31 2010-02-04 三洋電機株式会社 Notifying method, and access control device
US8180824B2 (en) 2009-02-23 2012-05-15 Trane International, Inc. Log collection data harvester for use in a building automation system
US8325648B1 (en) 2009-04-29 2012-12-04 Sprint Spectrum L.P. Methods and systems for assigning a wireless communication device to a carrier frequency
US8320313B1 (en) 2009-06-19 2012-11-27 Sprint Spectrum L.P. Method and system for carrier frequency management based on slot contention
US9219571B2 (en) * 2010-04-13 2015-12-22 Qualcomm Incorporated Aperiodic CQI reporting in a wireless communication network
US8798013B1 (en) 2011-03-25 2014-08-05 Sprint Spectrum L.P. Method and system for management of data transmission in timeslots
WO2013136125A1 (en) * 2012-03-15 2013-09-19 Nokia Corporation Determining an identification of a cell

Citations (4)

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Publication number Priority date Publication date Assignee Title
EP0458768A1 (en) * 1990-05-23 1991-11-27 Telefonaktiebolaget L M Ericsson A method for determining the transmission quality of a home traffic connection in a mobile radio system
US5353288A (en) * 1990-09-03 1994-10-04 Alcatel N.V. Device for selecting reception signals as a function of their power
EP0685974A1 (en) * 1994-06-01 1995-12-06 Nortel Networks Corporation Dual stage approach for evaluating a received signal in a communications system
US5493563A (en) * 1993-07-26 1996-02-20 Motorola, Inc. Method and apparatus for mobile assisted handoff in a communication system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4718081A (en) * 1986-11-13 1988-01-05 General Electric Company Method and apparatus for reducing handoff errors in a cellular radio telephone communications system
GB9012044D0 (en) * 1990-05-30 1990-07-18 British Telecomm Cellular radio
US5375123A (en) * 1993-02-05 1994-12-20 Telefonakitebolaget L. M. Ericsson Allocation of channels using interference estimation
US5729539A (en) * 1996-05-03 1998-03-17 Motorola, Inc. Method of scheduling signal quality measurements in a TDMA communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458768A1 (en) * 1990-05-23 1991-11-27 Telefonaktiebolaget L M Ericsson A method for determining the transmission quality of a home traffic connection in a mobile radio system
US5353288A (en) * 1990-09-03 1994-10-04 Alcatel N.V. Device for selecting reception signals as a function of their power
US5493563A (en) * 1993-07-26 1996-02-20 Motorola, Inc. Method and apparatus for mobile assisted handoff in a communication system
EP0685974A1 (en) * 1994-06-01 1995-12-06 Nortel Networks Corporation Dual stage approach for evaluating a received signal in a communications system

Also Published As

Publication number Publication date
WO1998030044A2 (en) 1998-07-09
AU5370698A (en) 1998-07-31
BR9713803A (en) 2000-01-25
AU735876B2 (en) 2001-07-19
US5995498A (en) 1999-11-30
CN1247679A (en) 2000-03-15
EP0950332A2 (en) 1999-10-20
CN1153498C (en) 2004-06-09
HK1026326A1 (en) 2000-12-08
KR20000069824A (en) 2000-11-25

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