EP1014482A2 - Système et procédé pour la commande de l'antenne d'un réseau de radiotéléphonie mobile - Google Patents

Système et procédé pour la commande de l'antenne d'un réseau de radiotéléphonie mobile Download PDF

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Publication number
EP1014482A2
EP1014482A2 EP99125386A EP99125386A EP1014482A2 EP 1014482 A2 EP1014482 A2 EP 1014482A2 EP 99125386 A EP99125386 A EP 99125386A EP 99125386 A EP99125386 A EP 99125386A EP 1014482 A2 EP1014482 A2 EP 1014482A2
Authority
EP
European Patent Office
Prior art keywords
antennas
antenna
peripheral processors
peripheral
central processor
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.)
Withdrawn
Application number
EP99125386A
Other languages
German (de)
English (en)
Other versions
EP1014482A3 (fr
Inventor
Giorgio Cortiana
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.)
Siemens Holding SpA
Original Assignee
Siemens Information and Communication Networks SpA
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 Siemens Information and Communication Networks SpA filed Critical Siemens Information and Communication Networks SpA
Publication of EP1014482A2 publication Critical patent/EP1014482A2/fr
Publication of EP1014482A3 publication Critical patent/EP1014482A3/fr
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations

Definitions

  • the present invention relates to a system for the control of the antennas of a mobile radio telephone network, and in particular to a system enabling to check the orientation and other antenna operation parameters to the purpose of adapting their coverage field on the basis of possible variations of operating conditions of the network itself.
  • the present invention relates also to a control procedure realized through said system.
  • a mobile radio telephone network in particular cellular telephone communication, includes a plurality of towers spread on the territory, on which some antennas are installed, generally subdivided into three groups of four antennas each. Said antennas are arranged according to an orientation suitable to the best coverage of the territory surrounding each tower, for instance with an horizontal pointing angle reciprocally phase shifted by 120° for each one of the three groups of antennas.
  • This orientation as well as other parameters governing the operation of the antennas, such as for instance the transmission power and the width of the lobe of the radiated field, are determined on the basis of the characteristics of the surrounding territory, such as the population density, the orography, the presence of artificial obstacles, etc.
  • the determination of these parameters is implemented through sophisticated and complex procedures with the aid of electronic simulation and measuring instruments of the network in real conditions. Moreover, these procedures have recourse to the particular know-how acquired in the time by the network designers, who become constantly aware of service priorities, information supplied by the users, progress of the plants, etc.
  • Object of the present invention is to eliminate the above mentioned drawbacks through a system enabling to change in a simple and quick manner the antenna operation parameters, in particular their orientation.
  • Said object is attained through a system and a procedure whose main characteristics are specified in the first and the eighth claim, respectively.
  • the system according to the present invention allows to automatically check the operation parameters, and in particular the orientation, of all the antennas of a mobile radio telephone network, so to considerably reduce both the times and the complexity of the control and of the possible modification of parameters following changed operation conditions of the network.
  • system according to the present invention shows the undoubted advantage to be applied without particular problems to already existing mobile radio telephone networks, availing, where possible, of all the structures already installed and operating on the territory.
  • a mobile radio telephone network includes in a known way a plurality of antennas 1 for the reception and/or transmission of radio signals, installed on the tops of towers 2 or other high buildings, which are generally subdivided into three groups of four antennas, oriented according to three horizontal axis, reciprocally sloped by 120°.
  • the antenna 1 of each one of the three groups of four antennas are fixed according to parallel axis to an horizontal cross bar 3 and project on the ground a coverage field 4 whose form and extension depends on the vertical pointing angles ⁇ and on the horizontal one ⁇ , as well as on other operation parameters, in particular, transmission power and width of the lobe of the field radiated by each antenna.
  • a local control station 5 is located, commonly called from English BTS Base Transceiver Station, which includes a plurality of electrical and electronic equipment for the control of the operation of antenna 1 and of the flow of signals received and/or transmitted by the same.
  • the base transceiver stations 5 are in their turn connected through a network of telephone lines 6 to a plurality of base station controllers 7, commonly called BSC from English Base Station Controller, which perform the control of the base transceiver stations 5 connected to the same.
  • BSC base station controllers 7
  • one or more base station controllers 7 are connected to a switching centre 8, commonly called MSC from English Mobile Switching Center, which performs the connections with additional telephone lines, in particular with the fixed telephone network. All the base transceiver stations 5 and geographical ones 7, as well as the mobile switching center 8, are connected to an operating maintenance center 9, commonly called OMC from English Operating-Maintenance Center, in which all the information relevant to the operation of the mobile radio telephone network are gathered.
  • each antenna 1 can be rotated in horizontal direction according to an angle ⁇ and vertically sloped according to an angle ⁇ .
  • the free end of the angular support 10 is adequately pivoted at the end of a first threaded rod, which is operated in the longitudinal direction by an actuator preferably consisting of an electrical reduction gear of a servomechanism 13 fit with sensor of the digital type, capable to detect the correct position of said tale threaded rod.
  • the free end of an horizontal rod 14 integral with the vertical shaft 11 is also pivoted on the end of a second threaded rod, it too operated in longitudinal direction by an electrical reduction gear of an additional servomechanism 15 fit with digital sensor capable of detecting the correct position of said second threaded rod.
  • a peripheral electronic processor of the known type 17 located in the base transceiver station 5 transmits the control electrical signals for the operation of the electrical reduction gears of servomechanisms 13 and 15.
  • the peripheral processor 17 receives also the position signals transmitted by the sensors of servomechanisms 13 and 15 through additional electrical lines contained in the conduit 16, which contains also the lines carrying the signals transmitted and received by antennas 1 to the power unit 18 connected to lines 6 of the telephone network.
  • the peripheral processor 17 transmits also the electrical control signals of the transmission power and of the width of the lobe of the radiated field to the antennas 1.
  • the peripheral processor 17 includes in particular a modem 19 connected to a telephone line 20, which preferably does not belong to the group of lines 6, but is directly connected, for instance through a dedicated telephone line, to an additional modem of a central electronic processor (not visible in the figure) placed in the operating maintenance center 9.
  • the central processor of the operating maintenance center 9 periodically interrogates the peripheral processors 17 of all the control stations of the network.
  • This interrogation procedure includes in particular the transmission through the line 20 of a predefined code, which determines the enabling in the peripheral processor 17 of a program reading the position of the threaded rods of each servomechanism 13 and 15 through the relevant digital sensors.
  • the program of the peripheral processor 17 reads also the other antenna operation parameters 1 and sends all the values read to the central processor through the line 20.
  • the central processor calculates, on the basis of initial values stored in the memory it is fit with, the vertical and horizontal pointing angles of each antenna.
  • the central processor calculates the orientation and the other best operation parameters of each antenna and determines possible differences between said best values and the values obtained from the above mentioned interrogation procedure.
  • this correction procedure includes the enabling in the peripheral processors 17 of a program reading the data transmitted by the central processor through the line 20 and correspondingly operated the threaded rods of the servomechanisms 13 and/or 15 of the antennas 1 to re-position.
  • This program performs also, if necessary, the modification of the other antenna operation parameters 1.
  • the peripheral processors 17 involved in the same transmit the new values to the central processor as a confirmation of the corrections made. These values are stored in the memory of the central processor together with the current date and time.
  • this system is adaptet not only to position the antennas of a mobile radio telephone network in the best way, but is can also re-position said antennas should a permanent or temporary modification occur, of the data relevant to the territory covered by the network.
  • This modification can for instance be due to the failure of one or more antennas of a tower or to the sudden concentration of a high number of users in a given area of the territory.
  • the central processor of the system according to the present invention being informed of the new situation through the data supplied by the outside, for instance from the base transceiver stations 5, geographical control stations 7 or mobile switching center 8, recalculates the best values of the orientation and of the other antenna operation parameters 1, transmitting then appropriate control signals to the peripheral processors 17 in order to adequate the real values to the best values, as explained before. It is evident that in other embodiments of the present invention the peripheral processors 17 and the central processor can be located in positions different from the base transceiver stations 5 and from the operating maintenance center 9, for instance in the geographical control stations 7, mobile switching center 8 or in other places.
  • peripheral processors 17 and the central processor can take place through the same mobile radio telephone network controlled by the system according to the present invention.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
EP99125386A 1998-12-22 1999-12-20 Système et procédé pour la commande de l'antenne d'un réseau de radiotéléphonie mobile Withdrawn EP1014482A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI982780 IT1304083B1 (it) 1998-12-22 1998-12-22 Sistema e procedimento per il controllo delle antenne di una retedi telefonia radiomobile
ITMI982780 1998-12-22

Publications (2)

Publication Number Publication Date
EP1014482A2 true EP1014482A2 (fr) 2000-06-28
EP1014482A3 EP1014482A3 (fr) 2002-03-13

Family

ID=11381309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99125386A Withdrawn EP1014482A3 (fr) 1998-12-22 1999-12-20 Système et procédé pour la commande de l'antenne d'un réseau de radiotéléphonie mobile

Country Status (2)

Country Link
EP (1) EP1014482A3 (fr)
IT (1) IT1304083B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001031742A1 (fr) * 1999-10-28 2001-05-03 Qualcomm Incorporated Antenne sectorisee non stationnaire
FR2805119A1 (fr) * 2000-02-16 2001-08-17 Mitsubishi Electric Inf Tech Procede de repartition des communications au sein d'une cellule d'un reseau de radiocommunication, dispositif et station de base correspondants
JP2009533010A (ja) * 2006-04-06 2009-09-10 アンドリュー・コーポレーション セルラーアンテナ及びそのためのシステムと方法
EP2838158A4 (fr) * 2012-04-12 2015-10-14 Kmw Inc Antenne à commande de faisceau variable pour système de communication mobile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4779097A (en) * 1985-09-30 1988-10-18 The Boeing Company Segmented phased array antenna system with mechanically movable segments
US5214364A (en) * 1991-05-21 1993-05-25 Zenith Data Systems Corporation Microprocessor-based antenna rotor controller
WO1993012587A1 (fr) * 1991-12-13 1993-06-24 Nokia Telecommunications Oy Systeme radio cellulaire
WO1998048472A1 (fr) * 1997-04-18 1998-10-29 Telefonaktiebolaget Lm Ericsson Procede d'amelioration des parametres de performances d'une antenne et systeme antenne

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4779097A (en) * 1985-09-30 1988-10-18 The Boeing Company Segmented phased array antenna system with mechanically movable segments
US5214364A (en) * 1991-05-21 1993-05-25 Zenith Data Systems Corporation Microprocessor-based antenna rotor controller
WO1993012587A1 (fr) * 1991-12-13 1993-06-24 Nokia Telecommunications Oy Systeme radio cellulaire
WO1998048472A1 (fr) * 1997-04-18 1998-10-29 Telefonaktiebolaget Lm Ericsson Procede d'amelioration des parametres de performances d'une antenne et systeme antenne

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001031742A1 (fr) * 1999-10-28 2001-05-03 Qualcomm Incorporated Antenne sectorisee non stationnaire
FR2805119A1 (fr) * 2000-02-16 2001-08-17 Mitsubishi Electric Inf Tech Procede de repartition des communications au sein d'une cellule d'un reseau de radiocommunication, dispositif et station de base correspondants
EP1126736A1 (fr) * 2000-02-16 2001-08-22 Mitsubishi Electric Information Technology Centre Europe Procédé de répartition des communications au sein d'une cellule d'un réseau de radiocommunication, dispositif et station de base correspondants
US7136675B2 (en) 2000-02-16 2006-11-14 Mitsubishi Denki Kabushiki Kaisha Method of distributing communications within a cell of a radio-communication network, and a corresponding device and base station
JP2009533010A (ja) * 2006-04-06 2009-09-10 アンドリュー・コーポレーション セルラーアンテナ及びそのためのシステムと方法
EP2838158A4 (fr) * 2012-04-12 2015-10-14 Kmw Inc Antenne à commande de faisceau variable pour système de communication mobile
US9917361B2 (en) 2012-04-12 2018-03-13 Kmw Inc. Variable beam control antenna for mobile communication system

Also Published As

Publication number Publication date
ITMI982780A1 (it) 2000-06-22
IT1304083B1 (it) 2001-03-07
EP1014482A3 (fr) 2002-03-13

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