Abstract: Measuring in a cellular telecommunication system the position of active mobile stations and the service, in terms of bit rate, they use. The first figure shows a number of users, four black dots having a voice connection with low bit rate and two users O having packet switched connection with a much higher bit rate. In the second figure the bit rate used is taken into consideration and, as shown by the greater area of the packet switched users, a more true picture of the traffic density is created. If the cell tends to get overloaded, requiring a cell split, the site X of a new base station will be shifted to the right comparing the second figure with the first.

Abstract: Measuring in a cellular telecommunication system the position of active mobile stations and the service, in terms of bit rate, they use. The first figure shows a number of users, four black dots having a voice connection with low bit rate and two users O having packet switched connection with a much higher bit rate. In the second figure the bit rate used is taken into consideration and, as shown by the greater area of the packet switched users, a more true picture of the traffic density is created. If the cell tends to get overloaded, requiring a cell split, the site X of a new base station will be shifted to the right comparing the second figure with the first.

Abstract: In the invention interfering mobile stations (MS1, MS2) are identified in a base station (BS), measuring the signal strength of the mobile stations, by the training sequence code they use during normal communication with a serving base station. In an evaluation unit (E) the received training sequence is correlated with a known training sequence (TSC) and when there is a match a signal (SSS) is produced corresponding to the signal strength of the strongest of the interfering mobile stations (MS1 or MS2). The invention may be used in a Virtual Singel System (VSC) used for indoor cellular telecommunication.

Abstract: A test transmitter for verifying the positioning of antennas in a mobile telecommunications system and a method for manufacturing such a test transmitter that is particularly suited for indoor use are presented. A mobile terminal is modified so that it can transmit in the downlink frequency band, and preferably so that it can transmit one or more of the signal types used for downlink signalling in the mobile telecommunications system.

Abstract: A system for comparing subjective dialogue quality in mobile telephone systems that include at least one mobile telephone exchange operating with a number of base stations, and at least one mobile radio unit for communicating with a respective base station. A first representation of the subjective dialogue quality that is experienced by a user of a first connection in the mobile telephone system is provided and compared with a representation produced for a second connection in a mobile telephone system. The system includes a transmitter for transmitting at least one predetermined and stored speech message that constitutes a second representation of a correct dialogue quality, and second means, including speech recognition means, for receiving and evaluating the speech message transmitted. The receiver produces in accordance with the recognizable parts of the speech message, a third representation of a dialogue quality experienced the user of the system.

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.