초록 ▼

The present invention relates to a mobile system, which includes a base station controller and at least a first and a second base station, which comprise switching means for switching transceiver units of the base stations onto a particular channel of a plurality of optional telecommunication channe

The present invention relates to a mobile system, which includes a base station controller and at least a first and a second base station, which comprise switching means for switching transceiver units of the base stations onto a particular channel of a plurality of optional telecommunication channels between the base station controller and the base stations. In order for the telecommunication channels to be utilized efficiently, the base station controller comprises control means, which allocate in connection with call set-up at least one of said telecommunication channels to the first or to the second base station for the duration of the call, and which transmit a predetermined message on the allocated channel to the base station to which the channel is allocated, the switching means of the first and, correspondingly, of the second base stations being responsive to said message for switching the transceiver units to the channel assigned by said message.

대표청구항 ▼

The invention claimed is: 1. A method comprising: arranging, in a mobile system between a base station controller and base stations, telecommunication channels which are available for a plurality of base stations but not permanently allocated to any base station, classifying said arranged telecommu

The invention claimed is: 1. A method comprising: arranging, in a mobile system between a base station controller and base stations, telecommunication channels which are available for a plurality of base stations but not permanently allocated to any base station, classifying said arranged telecommunication channels on the basis of their characteristics into at least two categories including primary telecommunication channels and secondary telecommunication channels, allocating in call set-up at least one of said primary telecommunication channels between the base station controller and the base stations to the base station handling the call if available, and otherwise allocating in call set-up at least one of said secondary telecommunication channels between the base station controller and the base stations to the base station handling the call, and controlling the base station controller to transmit information to the base station to indicate for the base station the telecommunication channel between the base station controller and the base station allocated thereto. 2. A method as claimed in claim 1, wherein said telecommunication channels are circuit-switched. 3. A method as claimed in claim 1, wherein said telecommunication channels are classified into categories on the basis of their data transmission capacity or quality such that the primary telecommunication channels have larger data transmission capacity or they are of better quality than the secondary telecommunication channels. 4. A system, comprising: a base station controller, a plurality of optional telecommunication channels, which are not permanently allocated to any base station, available between said base station controller and base stations, said optional telecommunication channels being classified on the basis of their characteristics into at least two categories including primary telecommunication channels and secondary telecommunication channels, at least a first and a second base station, which comprise transceiver units configured to establish a telecommunication connection by radio signals to the subscriber terminals located in the base station coverage area and a switching unit configured to switch the base station transceiver units onto a particular channel of said plurality of optional telecommunication channels between the base station controller and the base stations, the base station controller comprises a controller which in call set-up allocates at least one of said primary telecommunication channels between said base station controller and said base stations to the first or the second base station for the call if available, and otherwise allocates at least one of said secondary telecommunication channels between the base station controller and the first or second base station for the call and which transmit a predetermined message indicating the allocated telecommunication channel to the base station to whom the channel is allocated, and the switching unit of the first, and correspondingly, of the second base station are responsive to said message for switching the base station transceiver units to the telecommunication channel assigned by said message. 5. A system as claimed in claim 4, wherein said telecommunication channels are circuit-switched telecommunication channels. 6. A system as claimed in claim 4, wherein the primary telecommunication channels have larger data transmission capacity or they are of better quality than the secondary telecommunication channels. 7. A system as claimed in claim 4, wherein said message indicating the allocated telecommunication channel also indicates a radio channel to be used in the call to the transceiver unit of the base station. 8. A system as claimed in claim 4, wherein said system is a global system for mobile communications (GSM) system and said message consists of a CHANNEL ACTIVATION message in accordance with the GSM specifications part 08.58, to which is added information on the telecommunication channel allocated to the base station. 9. An apparatus, comprising: transceiver units configured to establish a telecommunication connection by radio signals to subscriber terminals located in a coverage area of the apparatus, and a switching unit configured to connect the transceiver units in call set-up to a base station controller via particular channels of a plurality of optional telecommunication channels which are classified on the basis of their characteristics into at least two categories which are classified on the basis of their characteristics into at least two categories including primary telecommunication channels and secondary telecommunication channels, and which are available between said base station controller and base stations of said system and which are not permanently allocated to any base station, said switching unit being responsive to a message received by the apparatus in conjunction with the call set-up for switching a particular transceiver unit onto the telecommunication channel between the base station controller and the apparatus indicated by the message for the call, said telecommunication channel being a primary telecommunication channel, if available, other wise a free secondary telecommunication channel. 10. An apparatus as claimed in claim 9, wherein said particular transceiver unit comprises an applying unit configured to apply a radio channel assigned by the message for the duration of the call to be established. 11. An apparatus comprising: means for a base station controller for communicating with base stations via a plurality of optional telecommunication channels, which are classified on the basis of their characteristics into at least two categories including primary telecommunication channels and secondary telecommunication channels, and which are not permanently allocated to any base station, between the apparatus and the base stations, and control means for a base station controller for allocating in call set-up at least one of said primary telecommunication channels between the apparatus and the base stations to a base station for a call if available, and otherwise for allocating at least one of said secondary telecommunication channels between the apparatus and the base stations for the call, and for transmitting a predetermined message indicating the allocated telecommunication channel to the base station to whom the channel is allocated. 12. An apparatus comprising: a communicating unit for a base station controller configured to communicate with base stations via a plurality of optional telecommunication channels, which are classified on the basis of their characteristics into at least two categories including primary telecommunication channels and secondary telecommunication channels, and which are not permanently allocated to any base station, between the apparatus and the base stations, and a controller for a base station controller configured to allocate in call set-up at least one of said primary telecommunication channels between the apparatus and the base station to a base station for a call if available, and otherwise for allocating at least one of said secondary telecommunication channels between the apparatus and the base station to a base station for a call and to transmit a predetermined message indicating the allocated telecommunication channel to the base stations to whom the channel is allocated. 13. A system comprising: base stations and telecommunication channels which are classified on the basis of their characteristics into at least two categories including primary telecommunication channels and the secondary telecommunication channels, and which are available for a plurality of base stations but not permanently allocated to any base station, between a base station controller and the base stations, allocating means for allocating in call set-up at least one of said primary telecommunication channels between the base station controller and the base stations to the base station handling the call if available, and otherwise for allocating in call set-up at least one of said secondary telecommunication channels between the base station controller and the base stations to the base station handling the call, and controlling means for controlling the base station controller to transmit information to the base station to indicate for the base station the telecommunication channel between the base station controller and the base stations allocated thereto. 14. An apparatus comprising: transceiver means for establishing a telecommunication connection by radio signals to subscriber terminals located in a coverage area of the apparatus, and switching means for connecting the transceiver means in call set-up to a base station controller via particular channels of a plurality of optional telecommunication channels available between said base station controller and base stations of said system and which are classified on the basis of their characteristics into at least two categories including primary telecommunication channels and secondary telecommunication channels and not permanently allocated to any base station, said switching means being responsive to a message received by the apparatus in conjunction with the call set-up for switching a particular transceiver means onto the telecommunication channel between the base station controller and the apparatus indicated by the message for the call, said telecommunication channel being a primary telecommunication channel, if available, otherwise a free secondary telecommunication channel. 15. An apparatus as claimed in claim 9, wherein said telecommunication channels are classified into categories on the basis of their data transmission capacity or quality such that the primary telecommunication channels have larger data transmission capacity or they are of better quality than the secondary telecommunication channels.