Abstract: The invention relates to a method for performing a selection of a public land mobile network identity in a shared network environment, in which environment at least two public land mobile network identities are available for providing circuit switched based service to a user equipment. The method includes determining a capability of the user equipment and selecting the public land mobile network identity at least partly on the basis of the capability of the user equipment among the at least two public land mobile network identities. Information on the capability of the user equipment is maintained in a database and in a step of determining the capability of the user equipment, the database is utilized. Furthermore, the invention relates to a network element and a system for implementing at least partly the method according to the invention.

Abstract: The invention relates to a mobile telecommunication system having an auxiliary routing arrangement comprising auxiliary radio channel units and monitoring circuit. The auxiliary radio channel units are arranged in the base station of the system and the monitoring circuit are arranged in the mobile telephone switch of the system. The monitoring circuit monitor the setting-up of each call in the mobile telephone switch and, when faults occur, the monitoring circuit are adapted switch off the transmitter function of an affected radio channel unit and to replace the affected radio channel unit with an auxiliary radio channel unit which is allocated a frequency essentially corresponding to the frequency of the affected radio channel unit. The automatic replacement of an affected radio channel unit with an auxiliary radio channel unit ensures that the traffic handling capacity of the system is essentially unchanged.

Abstract: The invention relates to a method and an arrangement in mobile telecommunications systems comprising, on the one hand, one or more cells operating with channels/frequencies, which cells belong to one or more base stations, and, on the other, one or more first and second mobile units, for producing one or more first representations of traffic intensity within one or more geographic areas. One or more second mobile units are provided with elements for measuring and evaluating signal strength. The measurements are carried out at a number of geographic positions on transmission from one or more first mobile units to a base station. In those cases where the signal strength exceeds a predetermined value, this value is stored, together with information on frequencies and geographic positions. One or more second representations of the traffic intensity in a respective geographic position are established in dependence on the number of stored values which have been obtained when measuring at the geographic positions.

Abstract: Method and arrangement for increasing the capacity in a mobile telephone system having mobile telephone exchanges (MTX), base stations (BS) and mobile stations (MS). The MTX:s handle the traffic within their traffic area via the base stations. MS:s mobile stations being at home are registered in a home location register and MS.S visiting the area are registered in a visitor location register. When the home location register is filled up, the system capacity is increased by selective MTX as home exchange, so that the MS is registered as visiting the visitor location register. MTX A, MTX B is preferably used as home exchange which only handles its home location register and associated functions, the radio traffic being handled via another MTX C which only handles its visitor location register and associated functions.