WO1995024103A2 - Realisation d'un rappel de registre dans un systeme de radiocommunications - Google Patents

Realisation d'un rappel de registre dans un systeme de radiocommunications Download PDF

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Publication number
WO1995024103A2
WO1995024103A2 PCT/FI1995/000098 FI9500098W WO9524103A2 WO 1995024103 A2 WO1995024103 A2 WO 1995024103A2 FI 9500098 W FI9500098 W FI 9500098W WO 9524103 A2 WO9524103 A2 WO 9524103A2
Authority
WO
WIPO (PCT)
Prior art keywords
subscriber
network element
subscriber unit
recall
unit
Prior art date
Application number
PCT/FI1995/000098
Other languages
English (en)
Other versions
WO1995024103A3 (fr
Inventor
Jussi Sarpola
Vesa HEIKKILÄ
Ari-Pekka Taskila
Hannu Asujamaa
Olli Liinamaa
Pekka Rusi
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Priority to AU17108/95A priority Critical patent/AU686332B2/en
Priority to JP7522546A priority patent/JP2889699B2/ja
Priority to EP95908982A priority patent/EP0746952A1/fr
Priority to US08/693,133 priority patent/US6073008A/en
Publication of WO1995024103A2 publication Critical patent/WO1995024103A2/fr
Publication of WO1995024103A3 publication Critical patent/WO1995024103A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/14—WLL [Wireless Local Loop]; RLL [Radio Local Loop]

Definitions

  • the invention relates to a method for accomplishing a register recall from a subscriber unit of a radio system providing a wireless local loop, the radio system comprising a subscriber network element and base stations to transmit telecommunication signals between the subscriber units and a public switched telephone network.
  • the invention also relates to a subscriber unit of a radio system providing a wireless local loop, the subscriber unit comprising a terminal equipment and an user interface.
  • the invention further relates to a subscriber network element of a radio system providing a wireless local loop, the subscriber network element having a data transfer connection with a telephone exchange and comprising means for establishing, via base stations, a radio connection to subscriber units located in the coverage area of the radio system, for transmitting telecommunication signals between the subscriber units and the exchange.
  • the invention relates to a WLL system, that is, a radio system providing a wireless local loop, in which system the subscriber units are connected by a radio connection via base stations and a subscriber network element to a public switched telephone network (PSTN) exchange.
  • PSTN public switched telephone network
  • a subscriber unit refers to the equipment the subscriber has for transmitting and receiving telecommunication signals, that is, in the case of the WLL subscriber unit, the subscriber unit comprises a WLL terminal equipment consisting of a radio part and a teleadapter, and a user interface, such as a telephone, a telefax terminal, a computer/modem combination or the like, connected to the terminal equipment .
  • Subscribers of the WLL system should have access to a register recall and subscriber facilities required thereby in the same way as the subscribers of a normal wired network. Also in the case of a loop dialling telephone, the restrictions for use should also be similar to those for subscribers of a wired network, that is, of the subscriber facilities requiring a recall only trace is operative.
  • the purpose of the present invention is to provide a register recall and subscriber facilities requiring it to subscribers of the WLL system.
  • This object is achieved with the method of the invention, which is characterized in that a register recall frame is transmitted from the subscriber unit in a conversation state of the unit to the subscriber network element, a message is awaited from the subscriber network element about receiving the frame, and diallings input from the user interface of the subscriber unit are tramsmitted on a speech path via the subscriber network element to the public switched telephone network.
  • the invention is based on the idea that the register recall and the facilities related thereto can be provided in a simple and fast manner when a recall frame and diallings following it are transmitted from a subscriber unit on a speech path, transmitted by a subscriber network element, to the fixed telephone network exchange so that the dialling in connection with the register recall frame can be analyzed at the exchange and the subscriber network element does not need to be able to analyze the dialling.
  • the method of the invention is thus making use of features already existing in fixed telephone network exchanges.
  • the most significant advantage of the method of the invention is that the register recall and the facilities required thereby can be provided to subscribers in a simple and reliable way without making any new requirements on the features of the subscriber network element or without raising the price significantly.
  • the invention also relates to a subscriber unit with which the method of the invention can be applied.
  • the subscriber unit of the invention is characterized in that the terminal equipment contains means for transmitting a register recall frame to the subscriber network element in response to a recall signal transmitted from the user interface, and means for transmitting diallings from the user interface on the speech path to the subscriber network element after receipt of a standby message.
  • the invention further relates to a subscriber network element with which the method of the invention can be applied and which is suitable to be used in connection with the subscriber unit of the invention.
  • the subscriber network element of the invention is characterized in that the subscriber network element comprises means responsive to a recall frame transmitted by a subscriber unit - for transmitting a standby message to the subscriber unit,
  • the WLL systems are generally based on a known cellular radio system in which the equipment of the WLL system has been developed by simplifying components of the cellular radio system, by removing features not needed in the WLL system.
  • the telephones of the cellular radio system used as a starting point could be used as subscriber units in the WLL system.
  • the subscriber network element of the invention preferabley comprises means for handling diallings transmitted also as digit frames because, for example, the specifications of the NMT-450i system define that diallings after a register recall frame are transmitted specifically as digit frames.
  • FIG. 1 is a block diagram of a WLL system
  • FIG 2 is a partial block diagram of the subscriber network element shown in Figure 1.
  • FIG. 1 is a block diagram of a part of a WLL system in which the method of the invention can be applied.
  • the WLL system in Figure 1 is based on an NMT- 450i system that has been simplified by removing unnecessary features .
  • Base stations 5 correspond to parts of the NMT-450i cellular radio system (Nordisk Mobil Kon) .
  • a subscriber unit 1 operates almost as a normal subscriber unit of the NMT-450i system.
  • calls can also be made with an ordinary mobile phone 9 of the NMT-450i system, provided that the network operator has programmed the subscriber network element 6 with a view to connecting calls for such a phone.
  • said NMT telephone 9 can only be used, however, in the radio coverage area of one base station 5, as the subscriber network element shown in the figure does not include handover means with which an ongoing call could be transferred between base stations 5.
  • the subscriber unit 1 shown in Figure 1 comprises a telephone 2 and a terminal equipment 3.
  • the telephone 2 is an ordinary telephone using voice frequency dialling connectable to a fixed telephone network.
  • the telephone 2 and the terminal equipment 3 are connected by a two-wire lead 4, through which signals can be transmitted between the terminal equipment and the telephone.
  • the terminal equipment 3 contains signal-processing means for adapting a speech path to a radio channel.
  • Such signal- processing means are, for example, a radio part, consisting of an antenna 8, a radio transmitter and a radio receiver, and a teleadapter that adapts the radio part to an ordinary telephone 2.
  • the subscriber unit 1 is connected by means of radio frequency signals via the antenna 8 to the base station 5 (the figure shows three base stations BS) , through which calls are transmitted to the subscriber network element 6 and further to the PSTN (Public Switched Telephone Network) , that is, to a fixed telephone network exchange 7.
  • the subscriber network element 6 is connected to a local exchange of the fixed telephone network with an open multiplexer connection of CCITT Q.512 V2 type using the 2 Mbit/s PCM system.
  • the terminal equipment 3 When a user of the telephone 2 in a conversation state presses the dial R (or dials 1 in the case of a telephone with loop dialling) , the terminal equipment 3 transmits a register recall frame and moves to a so called R state to wait for an acknowledgement utilizing time supervision. In the R state, the terminal equipment will not transmit the received telecommunication signals to the telephone 2.
  • the subscriber network element 6 acknowledges the reception of the recall frame directly by sending a standby message to the subscriber unit 1 via the radio path. Immediately after transmitting the standby message, the subscriber network element sends a message "dialling sufficient" to the subscriber unit whereupon the terminal equipment 3 returns to the conversation state.
  • FIG. 2 shows a partial block diagram of the subscriber network element 6 of Figure 1. Only those components of the subscriber network element that are needed for transmitting a register recall from the subscriber unit 1 or 9 in Figure 1 are shown in Figure 2.
  • a register recall frame as defined in the NMT specifications, sent by the subscriber unit 1 or 9 is transmitted from a base station 5 to a control unit 10 of the subscriber network element .
  • the control unit immediately acknowledges the reception of the frame by sending a message via the base station 5 to the subscriber unit. After this, the type of the subscriber unit that transmitted the frame is identified in an identification block 11.
  • the control block 10 transmits a register recall immediately to the PSTN exchange.
  • the exchange will not acknowledge the recall in any way, but will switch on a dialling tone which the subscriber network element transmits directly to the subscriber unit 1.
  • the user of the subscriber unit will hear the dialling tone, after which the user dials the number on the phone.
  • This dialling is transmitted in voice frequency directly on a speech path via the subscriber network element 6 to the PSTN exchange.
  • the control block 10 starts to receive single digit frames, as defined in the NMT specifications, transmitted from the mobile telephone 9 and forwarded via a base station 5 and to input the included digit information to a buffer 12.
  • a timer 13 measures the time passed since the previous digit was input to the buffer.
  • the control block 10 assumes that the dialling transmitted from the NMT telephone is received in whole whereupon the control block 10 transmits to the mobile phone 9 a message "dialling received" as defined in the NMT specifications, and to the PSTN exchange a register recall and the digits stored in the buffer 12, preferably as a voice frequency dialling.
  • the subscriber network element of the invention can also handle a register recall transmitted by a mobile telephone in the NMT-450i system, even though it does not include means for analyzing the dialling transmitted from the mobile telephone (by means of which an MTX exchange of the NMT- 450i system can for example determine when the dialling is received in whole) .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Procédé de réalisation d'un rappel de registre à partir d'une unité d'abonné (1) dans un système de radiocommunications mettant en ÷uvre une ligne d'abonné sans fil. Le système de radiocommunications comporte un élément (6) de réseau d'abonnés et des stations de base (5) pour transmettre des signaux de télécommunications entre les unités d'abonné (1) et un réseau téléphonique commuté public. Afin d'obtenir un rappel de registre simple et rapide, un bloc de rappel de registre est transmis par l'unité d'abonné (1) en mode conversationnel vers l'élément (6) de réseau d'abonnés, un message concernant la réception du bloc est attendu en provenance de l'élément (6) de réseau d'abonnés, et un signal d'entrée de numérotation en provenance de l'interface utilisateur (2) de l'unité d'abonné (1) est transmis sur une voie de conversation au réseau téléphonique commuté public, par l'intermédiaire de l'unité (6) de réseau d'abonnés. On a également prévu une unité d'abonné (1) et un élément (6) de réseau d'abonnés.
PCT/FI1995/000098 1994-02-23 1995-02-23 Realisation d'un rappel de registre dans un systeme de radiocommunications WO1995024103A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU17108/95A AU686332B2 (en) 1994-02-23 1995-02-23 Accomplishing a register recall in a radio system
JP7522546A JP2889699B2 (ja) 1994-02-23 1995-02-23 無線システムにおけるレジスタリコールの遂行
EP95908982A EP0746952A1 (fr) 1994-02-23 1995-02-23 Enregistrement de rappel dans un systeme radio
US08/693,133 US6073008A (en) 1995-02-23 1995-02-23 System for establishing a register recall during an active call in a radio system providing a wireless local loop

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI940857 1994-02-23
FI940857A FI97670C (fi) 1994-02-23 1994-02-23 Menetelmä rekisterin uudelleenkutsun aikaansaamiseksi radiojärjestelmässä, tilaajalaite ja tilaajaverkkoelementti

Publications (2)

Publication Number Publication Date
WO1995024103A2 true WO1995024103A2 (fr) 1995-09-08
WO1995024103A3 WO1995024103A3 (fr) 1995-10-19

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PCT/FI1995/000098 WO1995024103A2 (fr) 1994-02-23 1995-02-23 Realisation d'un rappel de registre dans un systeme de radiocommunications

Country Status (6)

Country Link
EP (1) EP0746952A1 (fr)
JP (1) JP2889699B2 (fr)
CN (1) CN1141713A (fr)
AU (1) AU686332B2 (fr)
FI (1) FI97670C (fr)
WO (1) WO1995024103A2 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996015638A1 (fr) * 1994-11-14 1996-05-23 Nokia Telecommunications Oy Element de reseau d'abonne
WO1997013381A1 (fr) * 1995-10-02 1997-04-10 Telefonaktiebolaget Lm Ericsson (Publ) Procede et appareil permettant d'obtenir une interface d'appel amelioree dans un systeme de communication cellulaire fixe
WO1997020445A1 (fr) * 1995-11-24 1997-06-05 Nokia Telecommunications Oy Procede d'etablissement d'une connexion de telecommunication sans fil
US5703933A (en) * 1995-05-31 1997-12-30 Telefonaktiebolaget Lm Ericsson (Publ.) Method and arrangement for establishing a connection in a telecommunications system
WO1997050262A2 (fr) * 1996-06-21 1997-12-31 Northern Telecom Limited Systeme et procede d'interfaçage d'un systeme classique de telephonie avec un systeme de telecommunications sans fils
WO1999012376A2 (fr) * 1997-09-01 1999-03-11 Nokia Networks Oy Procedure d'etablissement d'une liaison avec une ligne d'abonne radio
WO1999035861A2 (fr) * 1998-01-09 1999-07-15 Nokia Networks Oy Rappel du registre dans un systeme sans fil a boucle locale
US6073028A (en) * 1997-12-09 2000-06-06 Ericsson Inc. Method and apparatus for providing out of band dialed digit signaling for a caller interface in a fixed cellular communications system
US6199043B1 (en) 1997-06-24 2001-03-06 International Business Machines Corporation Conversation management in speech recognition interfaces
KR100394728B1 (ko) * 1999-05-19 2003-08-14 엘지전자 주식회사 무선 가입자망에서 가입자 정보 전송 제어 방법
US6892079B1 (en) 1997-09-01 2005-05-10 Nokia Networks Oy Procedure for setting up a call in a wireless local loop

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007856A1 (fr) * 1989-11-11 1991-05-30 Gpt Limited Procede d'enregistrement de telephone sans cordon
US5235598A (en) * 1992-01-30 1993-08-10 Motorola, Inc. Method for utilizing a control channel for both data and voice

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007856A1 (fr) * 1989-11-11 1991-05-30 Gpt Limited Procede d'enregistrement de telephone sans cordon
US5235598A (en) * 1992-01-30 1993-08-10 Motorola, Inc. Method for utilizing a control channel for both data and voice

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0746952A1 *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5933786A (en) * 1994-11-14 1999-08-03 Nokia Telecommunictions Oy Subscriber network element
WO1996015638A1 (fr) * 1994-11-14 1996-05-23 Nokia Telecommunications Oy Element de reseau d'abonne
US5703933A (en) * 1995-05-31 1997-12-30 Telefonaktiebolaget Lm Ericsson (Publ.) Method and arrangement for establishing a connection in a telecommunications system
US5724656A (en) * 1995-10-02 1998-03-03 Telefonaktiebolaget Lm Ericsson Method and apparatus for providing an improved caller interface in a fixed cellular communications system
WO1997013381A1 (fr) * 1995-10-02 1997-04-10 Telefonaktiebolaget Lm Ericsson (Publ) Procede et appareil permettant d'obtenir une interface d'appel amelioree dans un systeme de communication cellulaire fixe
AU720085B2 (en) * 1995-10-02 2000-05-25 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for providing an improved caller interface in a fixed cellular communications system
US5926764A (en) * 1995-11-24 1999-07-20 Nokia Telecommunications Oy Method for establishing a telecommunication connection
AU715322B2 (en) * 1995-11-24 2000-01-20 Nokia Telecommunications Oy A method for establishing a wireless telecommunication connection
WO1997020445A1 (fr) * 1995-11-24 1997-06-05 Nokia Telecommunications Oy Procede d'etablissement d'une connexion de telecommunication sans fil
US5983117A (en) * 1996-06-21 1999-11-09 Nortel Networks Corporation System and method for interfacing a standard telephony device to a wireless communication system
WO1997050262A3 (fr) * 1996-06-21 1998-02-19 Northern Telecom Ltd Systeme et procede d'interfaçage d'un systeme classique de telephonie avec un systeme de telecommunications sans fils
WO1997050262A2 (fr) * 1996-06-21 1997-12-31 Northern Telecom Limited Systeme et procede d'interfaçage d'un systeme classique de telephonie avec un systeme de telecommunications sans fils
US6199043B1 (en) 1997-06-24 2001-03-06 International Business Machines Corporation Conversation management in speech recognition interfaces
US6246990B1 (en) 1997-06-24 2001-06-12 International Business Machines Corp. Conversation management in speech recognition interfaces
WO1999012376A2 (fr) * 1997-09-01 1999-03-11 Nokia Networks Oy Procedure d'etablissement d'une liaison avec une ligne d'abonne radio
WO1999012376A3 (fr) * 1997-09-01 1999-06-10 Nokia Telecommunications Oy Procedure d'etablissement d'une liaison avec une ligne d'abonne radio
US6892079B1 (en) 1997-09-01 2005-05-10 Nokia Networks Oy Procedure for setting up a call in a wireless local loop
US6073028A (en) * 1997-12-09 2000-06-06 Ericsson Inc. Method and apparatus for providing out of band dialed digit signaling for a caller interface in a fixed cellular communications system
WO1999035861A3 (fr) * 1998-01-09 1999-09-10 Nokia Telecommunications Oy Rappel du registre dans un systeme sans fil a boucle locale
WO1999035861A2 (fr) * 1998-01-09 1999-07-15 Nokia Networks Oy Rappel du registre dans un systeme sans fil a boucle locale
US6720823B1 (en) 1998-01-09 2004-04-13 Nokia Corporation Register recall in a will system
KR100394728B1 (ko) * 1999-05-19 2003-08-14 엘지전자 주식회사 무선 가입자망에서 가입자 정보 전송 제어 방법

Also Published As

Publication number Publication date
WO1995024103A3 (fr) 1995-10-19
AU686332B2 (en) 1998-02-05
AU1710895A (en) 1995-09-18
CN1141713A (zh) 1997-01-29
FI940857A0 (fi) 1994-02-23
FI940857A (fi) 1995-08-24
FI97670B (fi) 1996-10-15
EP0746952A1 (fr) 1996-12-11
JP2889699B2 (ja) 1999-05-10
FI97670C (fi) 1997-01-27
JPH09508515A (ja) 1997-08-26

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