WO1999018683A3 - Received signal strength determination methods and systems - Google Patents

Received signal strength determination methods and systems Download PDF

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Publication number
WO1999018683A3
WO1999018683A3 PCT/US1998/020457 US9820457W WO9918683A3 WO 1999018683 A3 WO1999018683 A3 WO 1999018683A3 US 9820457 W US9820457 W US 9820457W WO 9918683 A3 WO9918683 A3 WO 9918683A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal strength
compensated
received signal
systems
receiver
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.)
Ceased
Application number
PCT/US1998/020457
Other languages
French (fr)
Other versions
WO1999018683A2 (en
Inventor
Eric A Shull
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.)
Ericsson Inc
Original Assignee
Ericsson Inc
Ericsson GE Mobile Communications Holding 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 Inc, Ericsson GE Mobile Communications Holding Inc filed Critical Ericsson Inc
Priority to AU95924/98A priority Critical patent/AU9592498A/en
Priority to AT98949642T priority patent/ATE214527T1/en
Priority to EEP200000205A priority patent/EE200000205A/en
Priority to BR9812410-2A priority patent/BR9812410A/en
Priority to DE69804243T priority patent/DE69804243T2/en
Priority to HK01104878.8A priority patent/HK1034381B/en
Priority to EP98949642A priority patent/EP1032991B1/en
Publication of WO1999018683A2 publication Critical patent/WO1999018683A2/en
Publication of WO1999018683A3 publication Critical patent/WO1999018683A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Circuits Of Receivers In General (AREA)
  • Radio Transmission System (AREA)

Abstract

A signal strength for a received signal such as a radio signal transmitted over a communication network is determined. The signal strength measurement is compensated for non-linear characteristics of the receiver. The compensation is provided by taking two signal strength readings with the receiver set at two different, known, gain levels. The difference between the expected change in the signal strength and the change actually measured by the receiver is used to generate a compensated signal strength measurement. A table of compensation factors is generated for each signal strength which is also utilized in generating the compensated signal strength measurement. The compensated signal strength measurement reading is transmitted to the communication network for use in mobile assisted handover.
PCT/US1998/020457 1997-10-02 1998-09-29 Received signal strength determination methods and systems Ceased WO1999018683A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AU95924/98A AU9592498A (en) 1997-10-02 1998-09-29 Received signal strength determination methods and systems
AT98949642T ATE214527T1 (en) 1997-10-02 1998-09-29 RECEIVED SIGNAL STRENGTH DETERMINATION METHODS AND SYSTEMS
EEP200000205A EE200000205A (en) 1997-10-02 1998-09-29 Methods and systems for determining the received signal strength
BR9812410-2A BR9812410A (en) 1997-10-02 1998-09-29 Process and system for measuring the intensity of a received signal
DE69804243T DE69804243T2 (en) 1997-10-02 1998-09-29 RECEPTION SIGNAL STRENGTH DETERMINATION METHODS AND SYSTEMS
HK01104878.8A HK1034381B (en) 1997-10-02 1998-09-29 Received signal strength determination methods and systems
EP98949642A EP1032991B1 (en) 1997-10-02 1998-09-29 Received signal strength determination methods and systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/942,645 1997-10-02
US08/942,645 US6006077A (en) 1997-10-02 1997-10-02 Received signal strength determination methods and systems

Publications (2)

Publication Number Publication Date
WO1999018683A2 WO1999018683A2 (en) 1999-04-15
WO1999018683A3 true WO1999018683A3 (en) 1999-06-24

Family

ID=25478402

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/020457 Ceased WO1999018683A2 (en) 1997-10-02 1998-09-29 Received signal strength determination methods and systems

Country Status (10)

Country Link
US (1) US6006077A (en)
EP (1) EP1032991B1 (en)
CN (1) CN1110911C (en)
AT (1) ATE214527T1 (en)
AU (1) AU9592498A (en)
BR (1) BR9812410A (en)
DE (1) DE69804243T2 (en)
EE (1) EE200000205A (en)
ES (1) ES2171309T3 (en)
WO (1) WO1999018683A2 (en)

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EP0967739A1 (en) * 1998-06-24 1999-12-29 ICO Services Ltd. Measurement of cellular environment in idle mode and transmission to central at beginning of call
US6453151B1 (en) * 1999-06-21 2002-09-17 Lucent Technologies, Inc. Method of reducing resource assignment overhead in wireless communication systems
DE69921374T2 (en) * 1999-08-23 2006-03-09 Fujitsu Ltd., Kawasaki COMMUNICATION SYSTEM, METHOD FOR FIELD STRENGTH COMPENSATION IN A COMMUNICATION SYSTEM AND BASE STATION AND DEVICE FOR A RADIO COMMUNICATION SYSTEM
EP1081979A1 (en) 1999-08-31 2001-03-07 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Subscriber station, network control means and method for carrying out inter-frequency measurements in a mobile communication system
US6845238B1 (en) 1999-09-15 2005-01-18 Telefonaktiebolaget Lm Ericsson (Publ) Inter-frequency measurement and handover for wireless communications
US6600917B1 (en) 1999-10-04 2003-07-29 Telefonaktiebolaget Lm Ericsson (Publ) Telecommunications network broadcasting of service capabilities
JP2001223600A (en) 2000-02-08 2001-08-17 Nec Saitama Ltd Wireless receiver and its reception level display method
US6654594B1 (en) * 2000-05-30 2003-11-25 Motorola, Inc. Digitized automatic gain control system and methods for a controlled gain receiver
EP1184841A1 (en) * 2000-08-31 2002-03-06 Siemens Aktiengesellschaft Speech controlled apparatus and method for speech input and speech recognition
US6853840B2 (en) * 2001-03-02 2005-02-08 Csi Wireless Llc System and method for enabling and disabling devices based on RSSI analysis
US7519372B2 (en) 2001-04-03 2009-04-14 At&T Mobility Ii Llc Methods and apparatus for mobile station location estimation
US7181218B2 (en) * 2001-04-10 2007-02-20 Telefonaktiebolaget Lm Ericsson (Publ) Commanding handover between differing radio access technologies
GB0217707D0 (en) 2002-07-31 2002-09-11 Koninkl Philips Electronics Nv System for locating a mobile unit
AU2003285138A1 (en) 2002-11-04 2004-06-07 Vivato Inc Directed wireless communication
CN1549644A (en) * 2003-05-23 2004-11-24 �ʼҷ����ֵ��ӹɷ����޹�˾ Multi-band and multi-mode mobile terminal in radio communication system
US7596372B2 (en) * 2004-06-14 2009-09-29 Warren Phillip D Apparatuses and methods for measuring signal strengths of wireless networks
US8121094B2 (en) * 2006-12-04 2012-02-21 Electronics And Telecommunications Research Institute Method for managing cross-layer handover
JP5018068B2 (en) * 2006-12-20 2012-09-05 日本電気株式会社 Mobile communication system, handover control method, radio base station, mobile station, and program
US9571713B2 (en) * 2008-12-05 2017-02-14 International Business Machines Corporation Photograph authorization system
US8634766B2 (en) 2010-02-16 2014-01-21 Andrew Llc Gain measurement and monitoring for wireless communication systems
US9507008B1 (en) * 2013-12-13 2016-11-29 Amazon Technologies, Inc. Location determination by correcting for antenna occlusion
CN105764083A (en) * 2014-12-18 2016-07-13 中兴通讯股份有限公司 RSSI compensation method, device and base station
CN106301616B (en) * 2016-08-12 2018-10-12 矽力杰半导体技术(杭州)有限公司 The acquisition methods and device of received signal strength indicator
US10545231B2 (en) * 2017-06-02 2020-01-28 Apple Inc. Compressing radio maps using different compression models
CN107808515B (en) * 2017-10-20 2023-12-26 北京智汇空间科技有限公司 Parking management method and system for shared bicycle
CN111092671B (en) * 2019-12-13 2021-09-28 Tcl移动通信科技（宁波）有限公司 Signal strength reporting method and device, storage medium and terminal equipment
WO2021207358A1 (en) * 2020-04-09 2021-10-14 Sensata Technologies, Inc. Lifetime battery tracking using a wireless interface
CN115142160B (en) * 2022-08-22 2023-12-19 无锡物联网创新中心有限公司 Identification method and related device for strong weak ring of yarn

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0601987A2 (en) * 1992-12-11 1994-06-15 Telefonaktiebolaget Lm Ericsson Method and apparatus for correcting a received signal strength indication in a radio receiver
EP0755133A2 (en) * 1995-07-21 1997-01-22 Kabushiki Kaisha Toshiba Method and apparatus for RSSI measurement in a digital radio system
EP0785640A1 (en) * 1996-01-17 1997-07-23 Nokia Mobile Phones Ltd. Method for extending the RSSI range and radio transceiver operating in accordance with this method

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US4227256A (en) * 1978-01-06 1980-10-07 Quadracast Systems, Inc. AM Broadcast tuner with automatic gain control
US4479253A (en) * 1982-01-18 1984-10-23 Rca Corporation Phaselock receiver with input signal measuring capability
US4578820A (en) * 1984-03-05 1986-03-25 General Electric Company Received signal strength indicator
US4580287A (en) * 1984-03-26 1986-04-01 Sprague Electric Company Radio receiver with logarithmic signal strength detector
US4619002A (en) * 1984-07-02 1986-10-21 Motorola, Inc. Self-calibrating signal strength detector
JPH04291524A (en) * 1991-03-20 1992-10-15 Matsushita Electric Ind Co Ltd Receiver
JP2988742B2 (en) * 1991-05-20 1999-12-13 株式会社東芝 Electric field strength detection circuit of wireless communication device
US5222104A (en) * 1991-12-30 1993-06-22 Motorola, Inc. Gain control circuit for radio transmitter
JPH07111484A (en) * 1993-08-20 1995-04-25 Hitachi Ltd Wireless communication device
FI96468C (en) * 1994-05-11 1996-06-25 Nokia Mobile Phones Ltd Controlling the handover of a mobile radio station and adjusting the transmission power in the radio communication system
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0601987A2 (en) * 1992-12-11 1994-06-15 Telefonaktiebolaget Lm Ericsson Method and apparatus for correcting a received signal strength indication in a radio receiver
EP0755133A2 (en) * 1995-07-21 1997-01-22 Kabushiki Kaisha Toshiba Method and apparatus for RSSI measurement in a digital radio system
EP0785640A1 (en) * 1996-01-17 1997-07-23 Nokia Mobile Phones Ltd. Method for extending the RSSI range and radio transceiver operating in accordance with this method

Also Published As

Publication number Publication date
EE200000205A (en) 2001-04-16
WO1999018683A2 (en) 1999-04-15
CN1110911C (en) 2003-06-04
ATE214527T1 (en) 2002-03-15
BR9812410A (en) 2000-08-29
DE69804243T2 (en) 2002-08-22
DE69804243D1 (en) 2002-04-18
CN1280721A (en) 2001-01-17
EP1032991B1 (en) 2002-03-13
ES2171309T3 (en) 2002-09-01
US6006077A (en) 1999-12-21
AU9592498A (en) 1999-04-27
HK1034381A1 (en) 2001-10-19
EP1032991A2 (en) 2000-09-06

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