DE3370422D1 - Method and apparatus for measuring the strength of a radio frequency signal - Google Patents

Method and apparatus for measuring the strength of a radio frequency signal

Info

Publication number
DE3370422D1
DE3370422D1 DE8383902772T DE3370422T DE3370422D1 DE 3370422 D1 DE3370422 D1 DE 3370422D1 DE 8383902772 T DE8383902772 T DE 8383902772T DE 3370422 T DE3370422 T DE 3370422T DE 3370422 D1 DE3370422 D1 DE 3370422D1
Authority
DE
Germany
Prior art keywords
signal
strength
signal strength
receiver
measuring
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.)
Expired
Application number
DE8383902772T
Other languages
English (en)
Inventor
Michael Mclaughlin
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of DE3370422D1 publication Critical patent/DE3370422D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
    • H04B7/0808—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching comparing all antennas before reception
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
DE8383902772T 1982-08-03 1983-08-02 Method and apparatus for measuring the strength of a radio frequency signal Expired DE3370422D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40512382A 1982-08-03 1982-08-03
PCT/US1983/001180 WO1984000653A1 (en) 1982-08-03 1983-08-02 Method and apparatus for measuring the strength of a radio frequency signal

Publications (1)

Publication Number Publication Date
DE3370422D1 true DE3370422D1 (en) 1987-04-23

Family

ID=23602370

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383902772T Expired DE3370422D1 (en) 1982-08-03 1983-08-02 Method and apparatus for measuring the strength of a radio frequency signal

Country Status (15)

Country Link
EP (1) EP0114890B1 (de)
JP (1) JPS59501530A (de)
KR (1) KR920001176B1 (de)
AT (1) ATE26052T1 (de)
AU (1) AU561186B2 (de)
CA (1) CA1209210A (de)
DE (1) DE3370422D1 (de)
DK (1) DK163700C (de)
FI (1) FI75958C (de)
HK (1) HK97489A (de)
IL (1) IL68987A (de)
MX (1) MX153718A (de)
NO (1) NO161890C (de)
SG (1) SG57689G (de)
WO (1) WO1984000653A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253971B (en) * 1984-10-30 1993-02-03 Secr Defence Improvements in or relating to ionospheric sounding
DE3508285C1 (de) * 1985-03-08 1992-03-26 Siemens Ag Funkueberleitstelle fuer ein Mobilfunknetz
JPH0278331A (ja) * 1988-09-14 1990-03-19 Nec Corp 移動通信用送受信装置
CA2012120C (en) * 1989-03-15 1994-10-18 Seiji Kondou Interference detection apparatus for use in digital mobile communications system
CA2072662A1 (en) * 1990-10-01 1992-04-02 Craig E. Rupp Single instruction data transfer method and apparatus
US5396224A (en) * 1991-11-22 1995-03-07 Hewlett-Packard Company Telemetered patient location system and method
CN108964738B (zh) * 2018-04-11 2021-09-28 莫志刚 一种用于轨道交通车地无线系统的车载天线系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1508349A (fr) * 1966-11-24 1968-01-05 Lannionaise D Electronique Soc Dispositif automatique de commutation d'antenne
US3564287A (en) * 1968-07-25 1971-02-16 Us Navy Maximum seeking zero order hold circuit
US3860872A (en) * 1970-02-05 1975-01-14 Pye Ltd Multiple receiver selection system
US3896375A (en) * 1974-02-06 1975-07-22 United Kingdom Government System for monitoring and indicating peak values of a time varying signal
US3973197A (en) * 1974-07-22 1976-08-03 Koehring Company Peak detector
FR2319905A1 (fr) * 1975-08-01 1977-02-25 Thomson Csf Dispositif de compression de bande et systeme radar comportant un tel dispositif
US4069455A (en) * 1976-11-11 1978-01-17 General Electric Company Arrangement for maintaining reception of a radio receiver on the stronger of two signals
FR2379820A1 (fr) * 1977-02-02 1978-09-01 Cit Alcatel Indicateur de puissance d'un signal
US4183087A (en) * 1978-03-07 1980-01-08 Hughes Aircraft Company Peak deviation sampling
JPS5630654A (en) * 1979-08-21 1981-03-27 Toyo Electric Mfg Co Ltd Peak value detection system
US4295099A (en) * 1979-09-05 1981-10-13 Honeywell Inc. Peak detector

Also Published As

Publication number Publication date
FI841285A0 (fi) 1984-03-30
IL68987A (en) 1986-12-31
NO161890C (no) 1989-10-04
MX153718A (es) 1986-12-22
DK176784A (da) 1984-04-03
KR840006078A (ko) 1984-11-21
AU561186B2 (en) 1987-04-30
JPS59501530A (ja) 1984-08-23
ATE26052T1 (de) 1987-04-15
HK97489A (en) 1989-12-15
SG57689G (en) 1989-12-29
NO841285L (no) 1984-04-02
AU1942483A (en) 1984-02-23
IL68987A0 (en) 1983-10-31
EP0114890A4 (de) 1984-10-11
NO161890B (no) 1989-06-26
FI75958B (fi) 1988-04-29
KR920001176B1 (ko) 1992-02-06
FI75958C (fi) 1988-08-08
DK163700B (da) 1992-03-23
EP0114890A1 (de) 1984-08-08
FI841285A (fi) 1984-03-30
EP0114890B1 (de) 1987-03-18
CA1209210A (en) 1986-08-05
DK163700C (da) 1992-08-10
DK176784D0 (da) 1984-04-03
WO1984000653A1 (en) 1984-02-16

Similar Documents

Publication Publication Date Title
DE69938606D1 (de) Beschleunigte abtastung von zellularen kanälen durch zellulare funktelefone
WO1998017021A3 (en) Apparatuses and methods for signal strength measurement in a wireless communication system
MY106895A (en) Multiple access handling in a cellular communications system
EP0987842A4 (de) Funkbasisstationsgerät und funkkommunikationsverfahren
NZ321268A (en) Apparatus and methods for signal strength measurement in a wireless communication system
CA2106063A1 (en) Apparatus and method for alternative radiotelephone system selection
CA2097587A1 (en) Gsm interference band selection and reduced power handover
WO2001071940A3 (en) Mobile radio communications apparatus and base station thereof, and method of antenna selection
JPS5068201A (de)
MY131653A (en) A method and apparatus for testing a base station in a time division multiple access radio communications system
EP0330222A3 (de) Verfahren und Vorrichtung zur Funkfrequenzumschaltung
RU2006140236A (ru) Способы и устройство выбора среди множества несущих с использованием одной цепи приемников, настроенной на одну несущую
US5214788A (en) Process and device for information transmission between radioelectric transceivers of the same network operating in frequency hopping
HK1041147A1 (zh) 轉移的定時
WO2000021226A3 (en) Method and arrangement for monitoring base station antenna condition
DE3370422D1 (en) Method and apparatus for measuring the strength of a radio frequency signal
EP0211366A3 (en) Mobile radio apparatus, such as a car radio or the like, in particular a vhf receiver
MX9805136A (es) Seleccion de antena de diversidad.
EP0977384A1 (de) Verfahren und Einrichtung für die Messung des Energiespektrums eines mobiles Handapparats
CA2176613A1 (en) Method and Apparatus for Adaptively Selecting an Antenna in a Mobile Radio Communications System
JPS57116443A (en) Radio communication device
RU2003108252A (ru) Способ определения местоположения подвижного объекта
JPS5769940A (en) Broad band antenna device for mobile communication
RU2003108251A (ru) Способ определения местоположения подвижного объекта

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee