WO2001093616A2 - Procede et systeme de commutation automatique et a distance de materiel de telecommunication - Google Patents

Procede et systeme de commutation automatique et a distance de materiel de telecommunication Download PDF

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Publication number
WO2001093616A2
WO2001093616A2 PCT/US2001/017350 US0117350W WO0193616A2 WO 2001093616 A2 WO2001093616 A2 WO 2001093616A2 US 0117350 W US0117350 W US 0117350W WO 0193616 A2 WO0193616 A2 WO 0193616A2
Authority
WO
WIPO (PCT)
Prior art keywords
signaling device
line
antenna
control box
switching
Prior art date
Application number
PCT/US2001/017350
Other languages
English (en)
Other versions
WO2001093616A3 (fr
Inventor
Roger Paul Savage
Kevin Zvokel
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
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 Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Priority to AU2001265130A priority Critical patent/AU2001265130A1/en
Publication of WO2001093616A2 publication Critical patent/WO2001093616A2/fr
Publication of WO2001093616A3 publication Critical patent/WO2001093616A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition

Definitions

  • the present invention is related to wireless telecommunications networks.
  • the present invention relates to cellular telephone networks. More particularly, the present invention relates to methods and systems for automatically switching telecommunications equipment during a maintenance exchange.
  • a typical cellular telephone network also includes a group of interconnected mobile switching centers, which operate in association with a gateway mobile switching center through which the cellular telephone network interconnects with a conventional public switched telephone network (PSTN).
  • PSTN public switched telephone network
  • at least one home location register (HLR) operates within the cellular telephone network.
  • the HLR stores network subscriber information, including the identified location of current mobile stations within the network.
  • a signal is sent to the home location register requesting routing information through the network to the called mobile station.
  • the home location register "looks up" the current location of the mobile station and contacts the currently serving mobile switching center to pre- route the call and retrieve a temporary location directory number, which is utilized to route the call through the cellular telephone network for delivery to the mobile station.
  • the serving mobile switching center retrieves from a visitor location register (VLR), the identification of the cell within which the called mobile station is currently located.
  • VLR visitor location register
  • the mobile switching center then instructs the base station associated with that particular cell to page the mobile station. Responding to the page, the mobile station requests assignment of a channel, and the network routes the call through the serving mobile switching center and over the assigned channel.
  • a method and system in a telecommunications network are presented for automatically and remotely switching telecommunications hardware during a maintenance exchange, wherein the telecommunications hardware includes data access lines and antenna devices.
  • an original signaling device is determined, wherein the original signaling device is connected to a data access line and an antenna device within a cell of the telecommunications network.
  • Such a signaling device includes devices such as data and RF signal systems.
  • a new signaling device is thereafter designated to replace the original signaling device.
  • the original signaling device and the new signaling device are linked to a switching mechanism.
  • the switching mechanism automatically and remotely switches the data access line and the antenna device from the original signaling device to the new signaling device. Switching is thereby permitted to automatically occur during an exchange of the original signaling device to the new signaling device within the cell of the telecommunications network. Such switching can be accomplished remotely.
  • the data access line typically is composed of a Tl data line.
  • the switching mechanism is configured as a control box that includes a power supply, one or more Tl switches connected to one or more Tl data line, one or more RF switches connected to one or more RF signal lines, and a control port for remotely and externally accessing the control box.
  • FIG. 1 depicts a block diagram illustrative of a telecommunications network in which a preferred embodiment of the present invention may be implemented
  • FIG. 2 illustrates a high-level block diagram illustrative of a system for automatically and remotely switching telecommunications hardware during a maintenance exchange
  • FIG. 3 depicts a high-level block diagram illustrative of an automatic swing box, in accordance with a preferred embodiment of the present invention
  • FIG. 4 illustrates a schematic diagram illustrating an automatic swing box, in accordance with a preferred embodiment of the present invention.
  • FIG. 1 a block diagram illustrates a telecommunications network 10 in which a preferred embodiment of the present invention may be implemented.
  • Telecommunications network 10 depicted in FIG. 1 is divided into a Switching System (SS) 22 and a Base Station System (BSS) 40.
  • SS Switching System
  • BSS Base Station System
  • Each of these systems contains a number of functional units, which process information and carry out operations of a functional telecommunications network.
  • the functional units themselves may be implemented utilizing various telecommunications hardware devices.
  • Switching System (SS) 22 is composed of a Visitor Location Register (VLR) 30, a Home Location Register (HLR) 28, an Authentication Center (AUC) 24, an Equipment Identity Register (EIR) 26, and a Mobile Switching Center (MSC) 27.
  • Base Station System (BSS) 40 is composed of a Base Station Controller (BSC) 46 and a Base Transceiver Station (BTS) 44.
  • An Operations and Maintenance Center (OMC) 48 is connected to equipment present within Switching System (SS) 22 and to BSS 40.
  • the dashed lines in FIG. 1 represent information transmission, while solid lines represent both call connections and information transmission.
  • Telecommunications network 10 illustrated in FIG. 1 may be realized as a network of neighboring radio cells, which together provide complete coverage for a service area.
  • the service area is the geographic area served by a given telecommunications supplier, and is the area in which the supplier stands ready to provide its service.
  • the service area of New York Telephone, for example, is most (but not all) of New York State.
  • Each cell contains a base station transceiver (BTS) operating on a set of radio channels. These channels differ from the channels utilized by neighboring cells in order to avoid interference.
  • BTS base station transceiver
  • Each base station controller controls a group of base station transceivers.
  • the base station controller controls well-known telecommunication functions, such as "Handover" and power control.
  • a number of base station controllers e.g., BSC 46
  • MSC 27 mobile switching center
  • PSTN Public Switched Telephone Network
  • MSC 27 also controls calls to and from an Integrated Services Digital Network (ISDN) 12, a Public Land Mobile Network (PLMN) 20, a Circuit Switched Public Data Network (CSPDN) 16, and also, various private networks such as, for example, a Packet Switched Public Data Network (PSPDN) 14.
  • ISDN Integrated Services Digital Network
  • PLMN Public Land Mobile Network
  • CSPDN Circuit Switched Public Data Network
  • PSPDN Packet Switched Public Data Network
  • HLR Home Location Register
  • HLR Home Location Register
  • the MSC area represents that portion of the telecommunications network covered by a single MSC.
  • the path through the network links to the MSC in the MSC area where the l o subscriber is currently located.
  • MS 42 sends location information, via MSC 27 and Visitor Location Register (VLR) 30, to an associated HLR, which permits MS 42 to receive calls.
  • VLR Visitor Location Register
  • AUC Authentication Center
  • HLR Home Location Register
  • HLR Home Location Register
  • Visitor Location Register (VLR) 30 is a database that contains information regarding all mobile stations currently located in the MSC area. When MS 42 roams in VLR.
  • the VLR connected to the MSC in that particular area requests data about the MS from Home Location Register (HLR) 28.
  • HLR Home Location Register
  • HLR 28 is updated within the MSC area in which MS 42 resides.
  • VLR Visitor Location Register
  • Visitor Location Register (VLR) 30 thus functions as a distributed HLR. Visitor Location Register (VLR) 30 also contains precise information about the location of the MS in the MSC area.
  • an exchange within PSTN 18 connects the call to an MSC equipped with a function commonly known as a "gateway" function.
  • an MSC having a "gateway” function is commonly referred to as a Gateway MSC (GMSC).
  • GMSC Gateway MSC
  • the MSC in telecommunications network 10 of FIG. 1 may be implemented as a Gateway MSC.
  • Most MSC's within GSM telecommunications networks function as Gateway MSC's.
  • the GMSC must find the location of the searched MS, which can be accomplished by interrogating the HLR where the MS is registered. The HLR then replies with the address of the current MSC area. Thereafter, the GMSC can re-route the call to the correct MSC. When the call reaches that MSC, the VLR will have additional information regarding the precise location of the MS. The call can then be switched through to completion.
  • the telecommunications network depicted in FIG. 1 may be implemented as a GSM-type network.
  • GSM Global System for Mobile communications
  • FIG. 2 illustrates a high-level block diagram illustrative of a system 50 for automatically and remotely switching telecommunications hardware during a maintenance exchange.
  • telecommunications hardware is represented functionally by blocks 62 and 64.
  • Block 62 symbolically represents "old equipment”
  • block 64 represents "new equipment.”
  • RBS Radio Base Station
  • FIG. 2 For example, Antennas 52 and 54 are originally connected to the older device, represented by block 62.
  • a Tl line 72 is also connected to the older device.
  • a telecommunications technician was required to manually switch Tl line 72 from the older device, represented by block 62, to the newer device, represented by block 64. The telecommunications technician was also required to manually switch antennas 52 and 54 from the older device to the newer device.
  • automatic switch 60 will route signals from the older equipment, represented by block 62 to the new equipment, represented by block 64.
  • Automatic switches 56 and 58 also respectively switch signals from the older equipment to the newer equipment. Automatic switching is accomplished remotely, thus eliminating the risk of switching a line incorrectly. Remote switching can be accomplished, for example, via dial-up access, paging or a combination thereof.
  • FIG. 3 depicts a high-level block diagram 80 illustrative of an automatic swing box, in accordance with a preferred embodiment of the present invention.
  • the configuration depicted in FIG. 2 comprises an "automatic swing box," a term utilized herein to describe a preferred embodiment of the present invention.
  • the automatic swing box described herein can be utilized during system change-outs or re-homing to automatically connect and reconnect antennas and/or Tl lines connected to RBS equipment within cell sites of telecommunications networks, such as the network described in FIG. 1 herein.
  • the automatic swing box reduces or effectively eliminates the errors resulting from the switching of lines incorrectly due to human error and minimizes wear and tear on equipment.
  • a control box 82 (i.e., an automatic swing box) includes a control port 88, a power supply 86, and a Tl switch 84.
  • the control port can be connected to a PSTN line 90, an external control 92, and a manual control 94.
  • Control box 82 is also connected to RF switches 96 and 98.
  • RF switches 96 and 98 can be "daisy chained" together as indicated at 100.
  • additional RF switches may be combined in a "daisy chain" configuration. In order to promote space efficiency, small RF switches may be utilized.
  • PSTN line 90 is connected to the Public Switched Telephone Network (PSTN), a worldwide-voice-telephone network accessible to those with standard telephone and access privileges. For example, an individual who wishes to access control box 82 via PSTN line can dial in.
  • PSTN Public Switched Telephone Network
  • a response tone then prompts the user to enter a pin number utilizing standard telephone numbers. When the pin number is entered, the user can then be prompted to choose a "A" side or "B" side.
  • the "A" side may, for example, represent the old RBS unit and the "B" side may represent the new RBS unit. If the user chooses the "B" side utilizing standard phone numbers on the telephone, the Tl and antenna lines are switched from the older RBS to the new RBS unit, thereby permitting such switching to occur remotely, without requiring the user to be physically present at the control box site.
  • Control Box 82 (i.e., the automatic swing box) is thus a switching mechanism for automatically and remotely switching data access lines, such as a Tl line connected to Tl switch 84 and/or an antenna device from the original signaling device to the new signaling device. In this manner, automatic and remote switching is permitted to occur during a maintenance exchange of the original signaling device to the new signaling device within a cell of a telecommunications network, such as the telecommunications network described in FIG. 1.
  • FIG. 4 illustrates a schematic diagram 110 illustrating an automatic swing box in accordance with a preferred embodiment of the present invention.
  • Main control box 112 is an automatic swing box for purposes of FIG. 4.
  • Main control box 112 is analogous to control box 82 depicted in FIG. 3.
  • Main control box 112 includes Tl relays 122, which are analogous to Tl switch 84 depicted in FIG. 3.
  • Tl relays 122 are connected to Tl control unit 114 and Tl control unit 116.
  • Tl control unit 114 is responsible for System A control while Tl control unit 116 is responsible System B control.
  • System A typically represents older telecommunications equipment while System B typically represents newer telecommunications equipment.
  • Main Tl lines 118 are connected to Tl relays 122.
  • Remote access 120 of main control box 112 can be accomplished via a PSTN line alone and/or with a pager device.
  • Main control box 122 is connected via line 140 to Remote RF Relay Boxes 130, 128, and 126.
  • Remote RF Relay Box 130 includes RF relay 135.
  • Remote RF Relay Box 128 includes RF relay 137.
  • Remote RF Relay Box 126 includes RF relay 139.
  • RF relay 135 is connected to receive antenna 134, while RF relay 137 is connected to transmit antenna 136.
  • RF relay 139 is linked to receive antenna 138.
  • System A RF Control 132 is linked to RF relay 135, RF relay 137, and RF relay 139.
  • System B RF Control 124 is connected to RF relay 139, RF relay 137, and RF relay 135.
  • Tl data line is described herein in the context of an illustrative embodiment of the present invention
  • other types of data access lines may be utilized in association with the present invention.
  • the present invention may be modified to function in association with Asynchronous Transfer Mode (ATM) data lines, well known in the telecommunications and networking arts.
  • ATM Asynchronous Transfer Mode
  • Other types of data access lines that may be utilized in association with the present invention include El data lines and Ethernet data lines.
  • E-l data lines for example, comprise the European equivalent of North American T-l data lines.
  • the data access lines described herein may also be configured as fiber optic data lines rather than T-l data lines.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

L'invention concerne un procédé et un système utilisés dans un réseau de télécommunication pour la commutation automatique et à distance de matériel de télécommunication au cours d'un échange de maintenance, le matériel de télécommunication comprenant des lignes d'accès aux données et des dispositifs d'antenne. Un dispositif de signalisation original, défini en premier lieu, est connecté à une ligne d'accès aux données et à un dispositif d'antenne dans une cellule d'un réseau de télécommunication. Un nouveau dispositif de signalisation est ensuite désigné pour remplacer le dispositif de signalisation original. Le dispositif de signalisation original et le nouveau dispositif de signalisation sont liés à un mécanisme de commutation automatique et à distance de la ligne d'accès aux données et du dispositif d'antenne, du dispositif de signalisation original au nouveau dispositif de signalisation, permettant ainsi de procéder à la commutation automatiquement et à distance au cours d'un échange entre le dispositif de signalisation original et le nouveau dispositif de signalisation dans la cellule du réseau de télécommunication. La ligne d'accès aux données est généralement composée d'une ligne de données T1. Le mécanisme de commutation est configuré comme un boîtier de commande et comprend une alimentation, un commutateur T1 connecté à la ligne de données T1, et un point d'accès de commande permettant d'accéder à distance et de l'extérieur au boîtier de commande.
PCT/US2001/017350 2000-05-31 2001-05-30 Procede et systeme de commutation automatique et a distance de materiel de telecommunication WO2001093616A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001265130A AU2001265130A1 (en) 2000-05-31 2001-05-30 Method and system for automatically and remotely switching telecommunications hardware

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58348300A 2000-05-31 2000-05-31
US09/583,483 2000-05-31

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WO2001093616A2 true WO2001093616A2 (fr) 2001-12-06
WO2001093616A3 WO2001093616A3 (fr) 2002-06-06

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5251249A (en) * 1990-11-26 1993-10-05 Northern Telecom Limited Method of upgrading a cellular network
US5752161A (en) * 1993-09-24 1998-05-12 Nokia Telecommunications Oy Method and apparatus for replacing a failed channel unit of a sectored base station, in a cellular radio system, with an additional channel unit
WO1999016270A1 (fr) * 1997-09-26 1999-04-01 Alcatel Usa Sourcing Lp Systeme de telecommunications integre

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5251249A (en) * 1990-11-26 1993-10-05 Northern Telecom Limited Method of upgrading a cellular network
US5752161A (en) * 1993-09-24 1998-05-12 Nokia Telecommunications Oy Method and apparatus for replacing a failed channel unit of a sectored base station, in a cellular radio system, with an additional channel unit
WO1999016270A1 (fr) * 1997-09-26 1999-04-01 Alcatel Usa Sourcing Lp Systeme de telecommunications integre

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Publication number Publication date
AU2001265130A1 (en) 2001-12-11
WO2001093616A3 (fr) 2002-06-06

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