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Patent EP0433256A2 successfully refreshed from Google Patents.
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EP0433256A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Telecommunication combination comprising a switched telecommunication network and a portable radio terminal

Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1990-12-06
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Granted: —
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Expires: 2010-12-06
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Abstract

Abstract The invention relates to a communication method and a combination of a switched telecommunication network and connected to the network, a first automatic branch exchange or residential equipment for a subscriber, a second automatic branch exchange or residential equipment for a subscriber, possibly also a telepoint, and a portable radio terminal constituting part of a residential equipment or an extension to an automatic branch exchange, the portable radio terminal when served by a radio transceiver other than its residential or exchange radio transceiver uses the branch exchange or telepoint and the network for calling its residential base radio station or branch exchange and reporting serving branch exchange or telepoint or a temporary number to a location store, calls to the portable radio terminal thereafter being transferred by the residential equipment or branch exchange through the network to the branch exchande or telepoint in accordance with information in the location store, whereby the portable radio terminal may call and be called through the network and proximate branch exchange or telepoint.

Inventors

  • 👤 Alex Krister Raith
  • 👤 Bengt Yngve Persson
  • 👤 Dag E:Son Akerberg

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-26 21:51
CPC Classifications
H; H04; H04W; H04W92/00; H04W92/02; H04W84/00; H04W84/02; H04W84/04; H04W84/042; H04W84/10; H04W84/16

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 768 words
A combination of a public switched telecommunication network, a portable radio terminal, a first automatic branch exchange or subscriber residential equipment connected to the telecommunication network, a second automatic branch exchange or subscriber residential equipment connected to the telecommunication network, and possibly also a telepoint radio station or telepoint transceiver controller with telepoint radio transceivers connected to the telecommunication network; the telecommunication network comprising a network subscriber store for information on network subscribers including network subscriber numbers of any branch exchange and telepoint station and residential equipment in the combination, means for connecting subscriber equipment to the network, and means for setting up calls to and from connected subscriber equipment in accordance with information in the network subscriber store; each branch exchange comprising an exchange switch, an exchange radio transceiver connected to the switch for radio communication with portable radio terminals, and an extension location store for information on portable radio terminals constituting extension terminals to the branch exchange; each subscriber residential equipment comprising a residential base radio station connected to the network and a portable radio terminal, the residential base radio station comprising a residential radio transceiver for radio communication with the portable radio terminal and a residential location store for information on the portable radio terminal constituting part of the same subscriber residential equipment; said telepoint radio station comprising a telepoint radio transceiver for radio communication with portable radio terminals, means for receiving an access request from and forwarding a call from a served portable radio terminal to the telecommunication network, means for paging a served radio terminal called by the telecommunication network, and means for forwarding a call from the telecommunication network to a paged and responding served portable radio terminal; said telepoint radio transceviver comprising means for paging of a portable radio terminal upon request by the telepoint transceiver controller, means for receiving and forwarding to the telepoint transceiver controller responses to paging, and means for receiving access requests from portable radio terminals and forwarding them to the telepoint transceiver controller; said telepoint transceiver controller comprising means for receiving a call from the telecommunication network to a portable terminal and initiating a broadcast paging of the portable terminal from all telepoint radio transceivers connected to the telepoint transceiver controller, means for receiving a response to a paging via a telepoint radio transceiver or a portable radio terminal access request via a telepoint radio transceiver, means for forwarding a call from a portable radio terminal via a connected serving telepoint radio transceiver to the telecommunication network, and means for forwarding a call from the telecommunication network via a connected serving telepoint radio transceiver to a portable radio terminal; said portable radio terminal comprising means for transmitting radio signals to be received by an exchange radio transceiver or a telepoint radio transceiver or a residential radio transceiver, means for receiving radio signals transmitted by an exchange radio transceiver or a telepoint radio transceiver or a residential radio transceiver, means for determining from received radio signals information on the identity of transmitting transceiver or branch exchange or telepoint or residential radio station of transmitting transceiver, if any, and means for choosing as serving transceiver a transceiver of appropriate received radio signals, if any; said portable radio terminal or each of said telepoint radio station and telepoint transceiver controller and private branch exchange comprising means for calling via the network the residential radio station of the portable or the branch exchange to whom the portable radio terminal constitutes an extension and reporting to the residential location store or to the extension location store the identity of choosen radio transceiver or branch exchange or telepoint of choosen radio transceiver when other than a transceiver of the residential radio station or the branch exchange to which the portable radio terminal constitutes an extension; in which combination a call to a portable radio terminal constituting part of a residential subscriber equipment or an extension to a private branch exchange being set up by the telecommunication network to the residential radio station or the branch exchange in accordance with information on the portable radio terminal in the network subscriber store; and, when receiving a call from the network to a portable radio terminal having been reported to the residential location store or the extension location store as being served by a an other radio transceiver the residential radio station or the branch exchange, forwarding the call back to the telecommunication network as a call to the private automatic branch exchange or the telepoint radio station comprising the serving radio transceiver, the call comprising information on the identity of the portable radio terminal.
Claim 2
Dependent Claim 98 words
A combination according to claim 1 comprising a branch exchange or a telepoint radio station or a telepoint transceiver controller having plural extension numbers for temporary use by visiting portable radio terminals not normally constituting extensions to the branch exchange, the branch exchange or telepoint radio station or telepoint transceiver controller allotting a vacant extension number to a visiting portable radio terminal to be served by a transceiver of the branch exchange or telepoint; and the location stores of the visiting terminals being informed on the identity of the choosen transceiver indirectly by reporting the allotted extension number.
Claim 3
Dependent Claim 81 words
A combination according to claim 2 wherein the branch exchange or the telepoint transceiver controller or telepoint radio station comprises means for paging visiting portable radio terminals having allotted extension numbers of the telepoint; means for withdrawing from use allotted extension numbers of visiting portable radio terminals not responding to paging; and means for setting up a call through the switched network for cancelling the information on the allotted extension number of the visiting portable radio terminal not responding to paging.
Claim 4
Dependent Claim 90 words
A combination according to claim 1 comprising a telepoint radio station having means for storing identities of served portable radio terminals, means for paging served portable radio terminals in order to check the presense of served portable radio terminals, means for waiting for answers to its paging from paged served portable radio terminals, and means for setting up a call through the switched network for informing the location store of a non answering previously served portable radio terminal that the portable radio terminal is no longer served by the telepoint.
Claim 5
Dependent Claim 93 words
A combination according to claim 1 comprising a telepoint transceiver controller having means for storing identities of served portable radio terminals, means for initiating broadcast paging of served portable radio terminals in order to check the accessability of served portable radio terminals, means for waiting for answers to the broadcast paging from paged served portable radio terminals, and means setting up a call through the switched network for informing the location store of a non answering previously served portable radio terminal that the portable radio terminal is no longer served by the telepoint.
Claim 6
Independent Claim 627 words
A method of setting up a call to a portable terminal in a combination of a public switched telecommunication network, a portable radio terminal, a first automatic branch exchange or subscriber residential equipment connected to the telecommunication network, a second automatic branch exchange or subscriber residential equipment connected to the telecommunication network, and possibly also a telepoint connected to the telecommunication network; the telecommunication network comprising means for connecting subscriber equipment to the network, a network subscriber store for information on network subscribers including network subscriber number of said branch exchange and residential equipment and telepoint in the combination, and means for setting up calls to and from connected subscriber equipment in accordance with information in the network subscriber store; said branch exchanges comprising an exchange switch, exchange radio transceivers connected to the switch for radio communication with portable radio terminals, and an extension location store for information on portable radio terminals constituting extension terminals to the branch exchange; said telepoint comprising a telepoint radio transceiver for radio communication with portable radio terminals; said subscriber residential equipment comprising a residential base radio station connected to the network and a portable radio terminal, the residential base radio station comprising a residential radio transceiver for radio communication with the portable radio terminal and a residential location store for information on the portable radio terminal constituting part of the same subscriber residential equipment; each portable radio terminal comprising means for transmitting radio signals to be received by an exchange radio transceiver or a telepoint radio transceiver or a residential radio station, means for receiving radio signals transmitted by an exchange radio transceiver or a telepoint radio transceiver or a residential radio transceiver; the method comrising the steps of: receiving radio signals at a portable radio terminal and determining from received radio signals information on the identity of transmitting transceiver or the branch exchange or residential radio station or telepoint of transmitting transceiver, if any; choosing at a portable radio terminal as its serving transceiver a transceiver of appropriate radio signals, if any; transmitting information on the identity of the portable radio terminal with radio signals from the portable radio terminal to its serving transceiver when other than that of its residential radio station or the exchange radio transceivers of the branch exchange to whom the portable radio terminal constitutes an extension; storing the identity of served portable radio terminals received with radio signals at serving telepoint or branch exchange when other than the branch exchange to whom the portable radio terminal constitutes an extension; allotting at serving telepoint or branch exchange a temporary extension number to served portable radio terminals with reported identity; setting up a call from serving telepoint or branch exchange through the network to the residential radio station of the portable or the branch exchange to whom the portable radio terminal constitutes an extension and reporting to the residential or extension location store the allotted temporary extension number of the portable when the choosen radio transceiver is other than one of the residential radio station or the branch exchange to whom the portable radio terminal constitutes an exchange; setting up any call to a portable radio terminal constituting part of a residential subscriber equipment or an extension to a private branch exchange through the telecommunication network to the residential radio station or the branch exchange in accordance with information on the portable radio terminal in the network subscriber store; and when receiving at a residential equipment or branch exchange a call via the network to a portable radio terminal having been reported to the location store as being served by an other radio transceiver then forwarding the call through the network as a call to the branch exchange or the telepoint comprising the reported temporary extension number.
Claim 7
Dependent Claim 82 words
A method according to claim 6 comprising the further steps of: paging from a branch exchange or telepoint visiting portable radio terminals having been allotted temporary extension numbers; withdrawing from use allotted extension numbers of visiting portable radio terminals not responding to the paging; and setting up of a call through the switched network for cancelling the temporary extension number in the location store of the residential base station or branch exchange of the visiting portable radio terminal not responding to paging.
Claim 8
Independent Claim 577 words
A method of setting up a call to a portable terminal in a combination of a public switched telecommunication network, a portable radio terminal, a first automatic branch exchange or subscriber residential equipment connected to the telecommunication network, a second automatic branch exchange or subscriber residential equipment connected to the telecommunication network, and possibly also a telepoint connected to the telecommunication network; the telecommunication network comprising means for connecting subscriber equipment to the network, a network subscriber store for information on network subscribers including network subscriber number of said branch exchange and residential equipment and telepoint in the combination, call transfer means including a call transfer store for receiving from subscribers information on other network subscriber numbers where they want their calls, and means for setting up calls to and from connected subscriber equipment in accordance with information in the network subscriber store and call transfer store; said branch exchanges comprising an exchange switch and exchange radio transceivers connected to the switch for radio communication with portable radio terminals; said telepoint comprising a telepoint radio transceiver for radio communication with portable radio terminals; said subscriber residential equipments comprising a residential base radio station connected to the network and a portable radio terminal, the residential base radio station comprising a residential radio transceiver for radio communication with the portable radio terminal; each portable radio terminal comprising means for transmitting radio signals to be received by an exchange radio transceiver or a telepoint radio transceiver or a residential radio transceiver, means for receiving radio signals transmitted by an exchange radio transceiver or a telepoint radio transceiver or a residential radio transceiver; the method comrising the steps of: receiving at a portable radio terminal radio signals from a transceiver and determining from received radio signals information on the identity of transmitting transceiver or the branch exchange or residential radio station or telepoint of transmitting transceiver, if any; choosing at a portable radio terminal as its serving transceiver a transceiver of appropriate radio signals, if any; transmitting the information on the identity of the portable radio terminal with radio signals from the portable radio terminal to its serving transceiver when other than that of its residential radio station or the exchange radio transceivers of the branch exchange to whom the portable radio terminal constitutes an extension; allotting a temporary extension number at serving telepoint or branch exchange to served portable having reported information on its identity; setting up a call from serving telepoint or branch exchange through the network to the call transfer means and reporting to the call transfer means the allotted temporary extension number of the served portable radio terminal when the choosen radio transceiver is other than one of the residential radio station or the branch exchange to whom the portable radio terminal constitutes an exchange; setting up any call to a portable radio terminal constituting part of a residential subscriber equipment or an extension to a private branch exchange through the telecommunication network to the residential radio station or the branch exchange in accordance with information on the portable radio terminal in the network subscriber store if no temporary extension number is reported to the call transfer store; and when receiving a call to a portable radio terminal having been allotted a temporary extension number reported to the call transfer means of the switched network, then forwarding the call through the network to the subscriber having a network subscriber number corresponding to the reported temporary extension number.
Claim 9
Dependent Claim 82 words
A method according to claim 8 comprising the further steps of: paging from a branch exchange or telepoint visiting portable radio terminals having been allotted temporary extension numbers; withdrawing from use allotted extension numbers of visiting portable radio terminals not responding to the paging; and setting up of a call through the network to the call transfer means of the network for cancelling in the call transfer store the temporary extension number of the visiting portable radio terminal not responding to paging.
Claim 10
Independent Claim 659 words
A method of communication in a combination of a public switched telecommunication network, a portable radio terminal, a first automatic branch exchange or subscriber residential equipment connected to the telecommunication network, a second automatic branch exchange or subscriber residential equipment connected to the telecommunication network, and possibly also a telepoint connected to the telecommunication network; the telecommunication network comprising means for connecting subscriber equipment to the network, a network subscriber store for information on network subscribers including network subscriber number of said branch exchange and residential equipment and telepoint in the combination, and means for setting up calls to and from connected subscriber equipment in accordance with information in the network subscriber store; each of said branch exchanges comprising an exchange switch, exchange radio transceivers connected to the switch, and an extension location store for information on portable radio terminals constituting extension terminals to the branch exchange; one subscriber residential equipment comprising a residential base radio station connected to the network and a portable radio terminal, the residential base radio station comprising a residential radio transceiver for radio communication with the portable radio terminal and an answering machine; said telepoint comprising a telepoint radio transceiver for radio communication with portable radio terminals; the portable radio terminal comprising means for transmitting radio signals to be received by an exchange radio transceiver or a telepoint radio transceiver or a residential radio transceiver, means for receiving radio signals transmitted by an exchange radio transceiver or a telepoint radio transceiver or a residential radio transceiver; the method comprising the steps of: receiving at a portable radio terminal radio signals from a radio transceiver, if ant, and determining from received radio signals information on the identity of transmitting transceiver or the branch exchange or residential radio station or telepoint to which the transmitting transceiver belongs, if any; choosing at a portable radio terminal as its serving transceiver a transceiver of appropriate received radio signals, if any; transmitting information on the identity of the portable radio terminal with radio signals from the portable radio terminal to its serving transceiver when other than that of its residential radio station or the exchange radio transceivers of the branch exchange to whom the portable radio terminal constitutes an extension; allotting a temporary extension number at serving telepoint or branch exchange to served portable radio terminal having reported information on identitys; setting up a call from serving telepoint or branch exchange through the network to the residential radio station of the portable or the branch exchange to whom the portable radio terminal constitutes an extension and reporting to the answering machine or to the extension location store the allotted temporary extension number of the served portable radio terminal when the choosen radio transceiver is other than one of the residential radio station or the branch exchange to whom the oportable radio terminal constitutes an exchange; setting up a call to a portable radio terminal constituting part of a residential subscriber equipment or an extension to a private branch exchange through the telecommunication network to the residential radio station or the branch exchange in accordance with information on the portable radio terminal in the network subscriber store; when receiving at a residential radio station a call through the network to a portable radio terminal constituting part of the residential subscriber equipment and having been allotted a temporary extension number reported to the residential radio station, answering the call with the answering machine of the residential radio station and giving the reported allotted temporary number to the called party with the answering machine; and when receiving at a branch exchange a call through the network to a portable radio terminal constituting an extension to the branch exchange and having been allotted a temporary extension number reported to the exchange location store, forwarding with the branch exchange the call back to the telecommunication network as a call to the subscriber having a network subscriber number corresponding to the reported temporary extension number.

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