Abstract: The invention relates to a telecommunications system comprising at least a plurality of SA-cells. The invention provides a method for a terminal to facilitate establishment of a data connection between the terminal and at least one of the SA-cells. The method includes steps of, while the terminal is in an idle mode, the terminal transmitting an information request message (IRM) for the plurality of SA-cells and receiving, from each SA-cell of one or more SA-cells of the plurality of SA-cells, a message comprising at least information indicative of a strength with which the each SA-cell received the IRM. The method further includes the step of, at least partially based on the messages received from the one or more SA-cells, the terminal selecting an SA-cell of the plurality of SA-cells for establishing the data connection between the terminal and the selected SA-cell.

Abstract: The disclosure relates to a method for discovery by a non-discoverable first public safety user equipment (PS UE), of a discoverable second PS UE in a public safety system comprising a telecommunications network providing a public safety spectrum for wireless access of the first PS UE and the second PS UE. The method can comprise for the first non-discoverable PS UE: transmitting synchronization information for the second PS UE; receiving at least one proximity announcement from the second PS UE in accordance with the transmitted synchronization information. The disclosure also relates to a non-discoverable public safety user device configured for performing the method, and relates to a PS server system arranged for assisting in the discovery of PS UEs.

Abstract: The disclosure relates to a transmission node and a method for wirelessly providing a number of data packets to a plurality of receivers in a cell of a transmission node of a cellular telecommunications system. The method comprises the steps of storing a number of network coded data packets at the transmission node and cyclically transmitting the stored network coded data packets from the transmission node to the plurality of receivers. The number of transmitted network coded data packets in a cycle is at least equal to the number of data packets to be provided to each receiver of the plurality of receivers and each network coded data packet is a linear combination of two or more data packets to be provided to each receiver.

Abstract: A method for allocating radio resources for a D2D communication between a first device and a second device is disclosed. The method includes identifying device(s) relevant for the D2D communication between the first and second devices, obtaining location information for the identified device(s), determining a value of a distance parameter for each of the identified devices using the location information obtained for the device and one or both of location information for the first device and location information for the second device, and allocating one or more radio resources for the D2D communication between the first device and the second device based on the determined value of the distance parameter.

Abstract: The invention relates to a wireless access telecommunications system comprising at least an SA-cell with which a terminal in an active mode is configured to have a data connection and an LA-cell on which the terminal in an idle mode is configured to camp. A method for the terminal to at least obtain LA-cell system information and SA-cell system information includes, when the terminal is in the active mode and an SA-cell radio interface of the terminal is enabled, the terminal receiving at least a part of the SA-cell system information for the terminal from the SA-cell via the SA-cell radio interface. The method further includes enabling an LA-cell radio interface of the terminal during one or more of a plurality of LA time periods and receiving at least a part of the LA-cell system information for the terminal from the LA-cell via the LA-cell radio interface.

Abstract: The present invention provides a random access procedure for establishment of a data connection between a terminal and a SA-cell in an energy-efficient network, such as e.g. a BCG2 network, wherein the total session setup time is shortened. An information request message (IRM) transmission from the mobile terminal is used for selecting the SA-cell that will serve the mobile terminal (i.e. set-up a data session with this SA-cell) and is simultaneously used for performing a ‘contention-free-like’ random-access procedure towards all candidate SA-cells. In this way performing a RACHSA procedure after selecting a SA cell becomes unnecessary, the random access time is shortened and the uplink resources (at the selected SA-cell) and the uplink transmissions from the terminal are more effectively used.

Abstract: The invention relates to a telecommunications system comprising at least a plurality of SA-cells. The invention provides a method for a terminal to facilitate establishment of a data connection between the terminal and at least one of the SA-cells. The method includes steps of, while the terminal is in an idle mode, the terminal transmitting an information request message (IRM) for the plurality of SA-cells and receiving, from each SA-cell of one or more SA-cells of the plurality of SA-cells, a message comprising at least information indicative of a strength with which the each SA-cell received the IRM. The method further includes the step of, at least partially based on the messages received from the one or more SA-cells, the terminal selecting an SA-cell of the plurality of SA-cells for establishing the data connection between the terminal and the selected SA-cell.

Abstract: The present invention provides a random access procedure for establishment of a data connection between a terminal and a SA-cell in an energy-efficient network, such as e.g. a BCG2 network, wherein the total session setup time is shortened. An information request message (IRM) transmission from the mobile terminal is used for selecting the SA-cell that will serve the mobile terminal (i.e. set-up a data session with this SA-cell) and is simultaneously used for performing a ‘contention-free-like’ random-access procedure towards all candidate SA-cells. In this way performing a RACHSA procedure after selecting a SA cell becomes unnecessary, the random access time is shortened and the uplink resources (at the selected SA-cell) and the uplink transmissions from the terminal are more effectively used.

Abstract: The invention relates to a telecommunications system comprising at least a plurality of SA-cells. The invention provides a method for a terminal to facilitate establishment of a data connection between the terminal and at least one of the SA-cells. The method includes steps of, while the terminal is in an idle mode, the terminal transmitting an information request message (IRM) for the plurality of SA-cells and receiving, from each SA-cell of one or more SA-cells of the plurality of SA-cells, a message comprising at least information indicative of a strength with which the each SA-cell received the IRM. The method further includes the step of, at least partially based on the messages received from the one or more SA-cells, the terminal selecting an SA-cell of the plurality of SA-cells for establishing the data connection between the terminal and the selected SA-cell.

Abstract: The disclosure relates to a method for discovery by a non-discoverable first public safety user equipment (PS UE), of a discoverable second PS UE in a public safety system comprising a telecommunications network providing a public safety spectrum for wireless access of the first PS UE and the second PS UE. The method can comprise for the first non-discoverable PS UE: transmitting synchronization information for the second PS UE; receiving at least one proximity announcement from the second PS UE in accordance with the transmitted synchronization information. The disclosure also relates to a non-discoverable public safety user device configured for performing the method, and relates to a PS server system arranged for assisting in the discovery of PS UEs.

Abstract: The disclosure relates to a method for discovery by a non-discoverable first public safety user equipment (PS UE), of a discoverable second PS UE in a public safety system comprising a telecommunications network providing a public safety spectrum for wireless access of the first PS UE and the second PS UE. The method can comprise for the first non-discoverable PS UE: transmitting synchronization information for the second PS UE; receiving at least one proximity announcement from the second PS UE in accordance with the transmitted synchronization information. The disclosure also relates to a non-discoverable public safety user device configured for performing the method, and relates to a PS server system arranged for assisting in the discovery of PS UEs.

Abstract: The disclosure relates to a transmission node and a method for wirelessly providing a number of data packets to a plurality of receivers in a cell of a transmission node of a cellular telecommunications system. The method comprises the steps of storing a number of network coded data packets at the transmission node and cyclically transmitting the stored network coded data packets from the transmission node to the plurality of receivers. The number of transmitted network coded data packets in a cycle is at least equal to the number of data packets to be provided to each receiver of the plurality of receivers and each network coded data packet is a linear combination of two or more data packets to be provided to each receiver.

Abstract: The invention relates to a mobile communication system. The mobile communication system includes a first base station configured to transmit at least part of a first data set of data segments arranged in a first sequence to a user terminal, and a second base station configured to transmit at least part of the first data set of data segments arranged in a second sequence to the user terminal, the second sequence of the first data set being an inverse of the first sequence of the first data set. The invention also relates to a coordination component, base station and user terminal for use in this system and to a method of arranging data segments in sequences performed by the coordination component. The invention further relates to a method of transmitting an acknowledgement, performed by the base station or by the user terminal.

Abstract: Mobile network (MN) for mobile devices (UE1, UE2), the mobile devices being arranged for exchanging communication data via the mobile network or, by selection, via a Device-To-Device [D2D] communication channel, the mobile network comprising a base station (ENB1) and a controller (010), wherein the controller (010) is arranged for: i) receiving an interception request from a lawful intercept controller (020), the interception request being indicative of a subscriber; ii) determining whether a target device associated with the subscriber participates in the D2D communication channel (D2D) based on D2D control data; and iii) if the target device is deemed to participate in the D2D communication channel (D2D), requesting the base station (ENB1) to intercept the communication data exchanged via the D2D communication channel (D2D); and wherein the base station (ENB1) is arranged for, in response to a request from the controller, intercepting radio signals (RS) of the D2D communication channel based on the D2D cont

Abstract: The disclosure relates to a method for discovery by a non-discoverable first public safety user equipment (PS UE), of a discoverable second PS UE in a public safety system comprising a telecommunications network providing a public safety spectrum for wireless access of the first PS UE and the second PS UE. The method can comprise for the first non-discoverable PS UE: transmitting synchronization information for the second PS UE; receiving at least one proximity announcement from the second PS UE in accordance with the transmitted synchronization information. The disclosure also relates to a non-discoverable public safety user device configured for performing the method, and relates to a PS server system arranged for assisting in the discovery of PS UEs.

Abstract: The invention relates to a telecommunications system comprising at least a plurality of SA-cells. The invention provides a method for a terminal to facilitate establishment of a data connection between the terminal and at least one of the SA-cells. The method includes steps of, while the terminal is in an idle mode, the terminal transmitting an information request message (IRM) for the plurality of SA-cells and receiving, from each SA-cell of one or more SA-cells of the plurality of SA-cells, a message comprising at least information indicative of a strength with which the each SA-cell received the IRM. The method further includes the step of, at least partially based on the messages received from the one or more SA-cells, the terminal selecting an SA-cell of the plurality of SA-cells for establishing the data connection between the terminal and the selected SA-cell.

Abstract: The present invention provides a random access procedure for establishment of a data connection between a terminal and a SA-cell in an energy-efficient network, such as e.g. a BCG2 network, wherein the total session setup time is shortened. An information request message (IRM) transmission from the mobile terminal is used for selecting the SA-cell that will serve the mobile terminal (i.e. set-up a data session with this SA-cell) and is simultaneously used for performing a ‘contention-free-like’ random-access procedure towards all candidate SA-cells. In this way performing a RACHSA procedure after selecting a SA cell becomes unnecessary, the random access time is shortened and the uplink resources (at the selected SA-cell) and the uplink transmissions from the terminal are more effectively used.

Abstract: The invention relates to a method for deactivation of at least one first cell of a plurality of cells in a telecommunications network. User devices in the at least one first cell are triggered to report measurement information regarding one or more second cells of the plurality of cells to the telecommunications network. The measurement information is received in the telecommunications network and analyzed in order to determine whether one or more user devices in the at least one first cell are eligible for being served by a second cell of the one or more second cells when the at least one first cell would be deactivated. When the one or more user devices are determined to be eligible for being served by the second cell of the one or more second cells, the one or more user devices are transferred and the at least one first cell is deactivated.

Abstract: The invention relates to a telecommunications system comprising at least a plurality of SA-cells. The invention provides a method for a terminal to facilitate establishment of a data connection between the terminal and at least one of the SA-cells. The method includes steps of, while the terminal is in an idle mode, the terminal transmitting an information request message (IRM) for the plurality of SA-cells and receiving, from each SA-cell of one or more SA-cells of the plurality of SA-cells, a message comprising at least information indicative of a strength with which the each SA-cell received the IRM. The method further includes the step of, at least partially based on the messages received from the one or more SA-cells, the terminal selecting an SA-cell of the plurality of SA-cells for establishing the data connection between the terminal and the selected SA-cell.

Abstract: A method for allocating radio resources for a D2D communication between a first device and a second device is disclosed. The method includes identifying device(s) relevant for the D2D communication between the first and second devices, obtaining location information for the identified device(s), determining a value of a distance parameter for each of the identified devices using the location information obtained for the device and one or both of location information for the first device and location information for the second device, and allocating one or more radio resources for the D2D communication between the first device and the second device based on the determined value of the distance parameter.