Abstract: Sequence numbers for data packets to be transmitted using bearers having bearer identifiers in a communications system are generated, wherein the sequence numbers are generated independently for each of the bearers used for transmitting the data packets. Last generated sequence numbers for each of the bearers identifiers are stored and held in a memory. When a sequence number for a data packet to be transmitted using a bearer out of the bearers which has been used before is to be generated the memory is checked on a last generated sequence number for the bearer with a previously used bearer identifier and the sequence number is generated in accordance therewith.

Abstract: In order to enable a home network operator to also control the issuing of certificates to a roaming subscriber, first information indicating whether or not it is allowed to issue a certificate to the subscriber is maintained in the subscription information. The first information is checked in response to a subscriber's certificate request received from the subscriber and the certificate is generated and delivered to the subscriber only if certificate issuance is allowed.

Abstract: This invention relates to a method for paging a mobile station (6-1 . . . 6-3) in a mobile radio system (1a; 1b) that comprises a plurality of base stations (3a-1, 3a-2; 3b-1, 3b-2; 3-1 . . . 3-3) each serving at least one cell (80-1 . . . 80-3) of said mobile radio system, said method comprising receiving (100) a data packet destined for said mobile station at one of said base stations during a dormant period of said mobile station, wherein it is unknown in which cell of said mobile radio system said mobile station is located during said dormant period; and taking action (103, 105) at said base station that received said data packet to page said mobile station in response to said received data packet in order to determine said cell in which said mobile station is located. The invention further relates to a corresponding computer program, computer program product, base station, mobile radio system and mobile station.

Abstract: Sequence numbers for data packets to be transmitted using bearers having bearer identifiers in a communications system are generated, wherein the sequence numbers are generated independently for each of the bearers used for transmitting the data packets. Last generated sequence numbers for each of the bearers identifiers are stored and held in a memory. When a sequence number for a data packet to be transmitted using a bearer out of the bearers which has been used before is to be generated the memory is checked on a last generated sequence number for the bearer with a previously used bearer identifier and the sequence number is generated in accordance therewith.

Abstract: A calculating method and a radio system comprising a set of emitters and a set of receivers and a measuring mechanism, which measure the time difference between the reception moments of signals transmitted by the transmitters while the receiver is receiving signals, and which calculate the geometrical time difference of the signals transmitted by the transmitters. The radio system includes a calculating mechanism, which forms the real time difference between the transmission moments of the signals transmitted by the transmitters as a function of time by of measuring the time difference of the signals transmitted by the transmitters as a function of time by of measuring the time difference of the signals received by the receiver and by of the geometrical time difference.

Abstract: A method provides a first network element (22) or a user equipment of a radio access system with a current value of at least one parameter (TS) during a change of access of the user equipment (20) from another network element (21) of a radio access system to the first network element (22). The parameter is required for creating headers for packets in which data of user equipment is transmitted. In order to guarantee continuous parameter values without jumps, the current parameter values (TS) are transmitted from the other network element (21), which knows the current parameter value, to the first network element (22) or to the user equipment, and that in addition, the network element (22) or the user equipment are synchronized to the other network element (21). The network element (22) or the user equipment then corrects the received parameter value (TS) based on the synchronization.

Abstract: In order to deliver to subscriber's user equipment network-specific information required for a service or for requesting a service in the mobile communication network, where the subscriber's user equipment is currently located, either at least part of the information required for the service is transmitted to the user equipment after the subscriber has been authenticated or the address of a network node is determined (2-9) on the basis of the subscriber's location information.

Abstract: In order to enable a home network operator to also control the issuing of certificates to a roaming subscriber, first information indicating whether or not it is allowed to issue a certificate to the subscriber is maintained in the subscription information. The first information is checked in response to a subscriber's certificate request received from the subscriber and the certificate is generated and delivered to the subscriber only if certificate issuance is allowed.

Abstract: The invention relates to a calculating method and a radio system comprising a set of emitters and a set of receivers and a measuring means, which measure the time difference between the reception moments of signals transmitted by the transmitters while the receiver is receiving signals, and which calculate the geometrical time difference of the signals transmitted by the transmitters. The radio system comprises a calculating means, which form the real time difference between the transmission moments of the signals transmitted by the transmitters as a function of time by means of measuring the time difference of the signals received by the receiver and by means of the geometrical time difference, in such a way that the calculating means and the geometrical time difference to the time difference based on the reception moments.

Abstract: The invention relates to a method of measuring a time difference and a radio system employing the method, the radio system comprising base stations, terminals, time difference units and a time difference centre. A real time difference RTD of the base station is formed on the basis of measurements carried out by the time difference units by means of an observed time difference OTD and a geometrical time difference GTD in the time difference centre as a function of time, in which case the moment of occurrence of the real time difference RTD measured is connected to the real time difference RTD of the base station.

Abstract: The invention relates to a method of measuring a time difference and a radio system employing the method, the radio system comprising base stations, terminals, time difference units and a time difference centre. A real time difference of the base station is formed on the basis of measurements carried out by the time difference units by means of an observed time difference and a geometrical time difference in the time difference centre as a function of time, in which case the moment of occurrence of the real time difference measured is connected to the real time difference RTD of the base station.

Abstract: The invention relates to a calculating method and a radio system comprising a set of emitters and a set of receivers and a measuring means, which measure the time difference between the reception moments of signals transmitted by the transmitted while the receiver is receiving signals, and which calculate the geometrical time difference of he signals transmitted by the transmitters. The radio system comprises a calculating means, which form the real time difference between the transmission moments of the signals transmitted by the transmitters as a function of time by means of measuring the time difference of the signals received by the receiver and by means of the geometrical time difference, in such a way that the calculating means and the geometrical time difference to the time difference based on the reception moments.