SE9800988D0 - A method and apparatus in a cellular communications system - Google Patents

A method and apparatus in a cellular communications system

Info

Publication number
SE9800988D0
SE9800988D0 SE9800988A SE9800988A SE9800988D0 SE 9800988 D0 SE9800988 D0 SE 9800988D0 SE 9800988 A SE9800988 A SE 9800988A SE 9800988 A SE9800988 A SE 9800988A SE 9800988 D0 SE9800988 D0 SE 9800988D0
Authority
SE
Sweden
Prior art keywords
progress
voice
voice call
communications system
cellular communications
Prior art date
Application number
SE9800988A
Other languages
Swedish (sv)
Other versions
SE9800988L (en
Inventor
Patrik Lundqvist
Mats Cedervall
Original Assignee
Ericsson Telefon Ab L M
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 Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9800988A priority Critical patent/SE9800988L/en
Publication of SE9800988D0 publication Critical patent/SE9800988D0/en
Priority to ZA9901983A priority patent/ZA991983B/en
Priority to AU31793/99A priority patent/AU3179399A/en
Priority to PCT/SE1999/000464 priority patent/WO1999049691A2/en
Priority to ARP990101303A priority patent/AR018810A1/en
Priority to TW088106742A priority patent/TW424368B/en
Publication of SE9800988L publication Critical patent/SE9800988L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/14—Determining absolute distances from a plurality of spaced points of known location

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

In a wireless communication system including a number of base stations (102, 104, 106) for serving mobile stations (108) present in the system, the position of a mobile station during a voice call in progress is determined by performing time or angle measurements using a positioning signal between the mobile station and a required number of the base stations. Means (138, 152) are provided for detecting voice activity in the voice call in progress, and further means (111, 138, 152, 142) are provided for voice synchronizing the transmission of the positioning signal with a part of the voice call in progress having low or lacking voice activity.
SE9800988A 1998-03-24 1998-03-24 Methods and devices for cellular communication systems SE9800988L (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9800988A SE9800988L (en) 1998-03-24 1998-03-24 Methods and devices for cellular communication systems
ZA9901983A ZA991983B (en) 1998-03-24 1999-03-11 A method and apparatus in a cellular communication system.
AU31793/99A AU3179399A (en) 1998-03-24 1999-03-24 A method for positioning and an apparatus in a cellular communications system
PCT/SE1999/000464 WO1999049691A2 (en) 1998-03-24 1999-03-24 Method and apparatus for determining the position of a mobile station in a cellular communication system
ARP990101303A AR018810A1 (en) 1998-03-24 1999-03-24 A METHOD AND APPARATUS IN A CELLULAR COMMUNICATIONS PROVISION
TW088106742A TW424368B (en) 1998-03-24 1999-04-27 A method and apparatus in a cellular communications system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9800988A SE9800988L (en) 1998-03-24 1998-03-24 Methods and devices for cellular communication systems

Publications (2)

Publication Number Publication Date
SE9800988D0 true SE9800988D0 (en) 1998-03-24
SE9800988L SE9800988L (en) 1999-09-25

Family

ID=20410676

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9800988A SE9800988L (en) 1998-03-24 1998-03-24 Methods and devices for cellular communication systems

Country Status (6)

Country Link
AR (1) AR018810A1 (en)
AU (1) AU3179399A (en)
SE (1) SE9800988L (en)
TW (1) TW424368B (en)
WO (1) WO1999049691A2 (en)
ZA (1) ZA991983B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6295455B1 (en) 1999-06-11 2001-09-25 Telefonaktiebolaget Lm Ericsson (Publ) Methods and arrangements for locating a mobile telecommunications station
FR2809554B1 (en) * 2000-05-23 2002-08-16 Mitsubishi Electric Telecom Eu METHOD FOR SYNCHRONIZING AT LEAST ONE MOBILE STATION IN A MOBILE TELECOMMUNICATION NETWORK HAVING A MODIFIED SYNCHRONIZATION CHANNEL STRUCTURE
US7110774B1 (en) * 2000-10-27 2006-09-19 Intel Corporation Dual mode uplink/downlink location measurement and multi-protocol location measurement
DE10159226A1 (en) * 2001-11-27 2003-07-03 Ihp Gmbh Location determination system and method
US8169991B2 (en) 2004-04-30 2012-05-01 Symbol Technologies, Inc. Interference mitigation in mobile units having location transmitters

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9508884D0 (en) * 1995-05-02 1995-06-21 Telecom Sec Cellular Radio Ltd Cellular radio system
US5844522A (en) * 1995-10-13 1998-12-01 Trackmobile, Inc. Mobile telephone location system and method
AU733935B2 (en) * 1996-06-06 2001-05-31 Qualcomm Incorporated Using a signal with increased power for determining the position of a mobile subscriber in a CDMA cellular telephone system
US5945948A (en) * 1996-09-03 1999-08-31 Motorola, Inc. Method and apparatus for location finding in a communication system

Also Published As

Publication number Publication date
ZA991983B (en) 1999-09-27
TW424368B (en) 2001-03-01
SE9800988L (en) 1999-09-25
AR018810A1 (en) 2001-12-12
AU3179399A (en) 1999-10-18
WO1999049691A2 (en) 1999-09-30
WO1999049691A3 (en) 1999-11-11

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Legal Events

Date Code Title Description
NAV Patent application has lapsed