Nokia Telecommunications Oy

Juhani Jaamies

Hannu Vaitovirta

Esko Rautanen

Esko T Rautanen

The invention relates to a method for implementing transmission in a mobile network in which base stations (BTS) communicate through a transmission network with a base station controller (BSC) and through a radio path with mobile stations (MS). In order that the transmission of the fixed part of the mobile network may be implemented in a simpler way than heretofore, a common transmission link (TL) is established between several base stations and their common base station controller, a combining network element ( ) being located at least at one point of the transmission link in which network element signals arriving from different base stations are combined of the base station to which the time slot basis for incorporation into the time slots of the frame structure used on the transmission link in such a way that the signal from the frame of the common transmission link (TL) for the use of the radio channels dynamically in such a way that any one of several different radio channels can use a specific channel on the transmission link.

Data transmission in a mobile network

The invention relates to a implementing signalling in a telecommunications network, particularly in a mobile network. In the method, one network element (BSC) serves as a master element and several other network elements serve as slave elements (BTS1 . . . BTS4) sending a transmission request for signalling information to the master element which assigns transmission turns in accordance with received transmission requests. The signalling is implemented on a signalling channel common to the slave network elements, comprising at least one time slot of the transmission frame, or part of such a time slot. In order that the transmission requests might be forwarded to destination rapidly without unnecessarily occupying transmission capacity, in the transmission from the slave elements to the master element (a) the capacity of the signalling channel used is divided into a first subchannel on which transmission requests are sent and to a second subchannel on which actual signalling information is sent, and (b) the subchannel allocated to transmission requests is further divided between several different base stations in such a way that a predetermined bit from the same time slot of the transmission frame is assigned for the use of transmission requests of each base station, and thus several different slave elements can send a transmission request simultaneously to the master element.

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Espoo, Finland

Juhani Jaamies