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: A first method comprises transmitting (101) a preamble in a first time interval in a first frequency resource, transmitting (103) a first portion or a first copy of data in the first frequency resource in a second time interval, and transmitting (105) a second portion or second copy of the data in a second frequency resource in the second time interval. The second time interval succeeds the first time interval and the second frequency resource is separate from the first frequency resource. A second method comprises listening (111) for transmission of a preamble, transmitting (115) data in a second time interval succeeding a first time interval upon determining that the preamble was not received in the first time interval, and refraining (113) from transmitting data in the second time interval upon determining that the preamble was received in the first time interval.

Abstract: A method comprises listening (151) for transmission of a preamble by a transmitting device to a recipient and receiving (153) data in a second time interval upon receiving the preamble in a first time interval. The second time interval succeeds the first time interval. The method further comprises listening (155) for transmission by the recipient of a message, e.g. a NACK, indicating that data transmitted in the second time interval was not successfully received by the recipient and retransmitting (157) the data in a fourth time interval upon receiving the message in a third time interval.

Abstract: A method of scheduling transmissions to client devices comprises receiving feedback (f1a-f3d) about a plurality of candidate downlink frequency resources (91-94) from a plurality of client devices and/or measuring channel qualities of a plurality of candidate uplink frequency resources (95-98) from receptions of transmissions, e.g. of the feedback, by the plurality of client devices. The method further comprises selecting a subset (92) of the plurality of candidate downlink frequency resources and/or a subset (96) of the plurality of the candidate uplink frequency resources based on the received feedback and/or the measured channel qualities. The method further comprises scheduling transmissions (dd1-3) to the client devices on the selected subset of candidate downlink frequency resources and/or transmissions (ud1-3) from the client devices on the selected subset of uplink frequency resources.

Abstract: A data processing system for a cellular communications network is disclosed. The network is configured to enable communication with a user equipment. The data processing system is configured to control the operation mode of the communications re network f to serve the user equipment. Herein the operation mode is characterized by a set of one or more values of respective one or more network performance parameters. The data processing system comprises a storage system and a processor. The storage system is suitable for storing geographical information indicative of a geographical region. The geographical region is independent of the cellular configuration of the cellular communications network. The processor is configured to perform a number of steps. One step comprises obtaining location information indicative of a location of the user equipment.

Abstract: A receiving system (1) is configured to determine reception antenna weights for a plurality of antennas and/or antenna elements for each transmitting system of a plurality of transmitting systems (11, 22-65) for receiving wireless signals using receive beamforming. The receiving system is further configured to determine a schedule for receiving the wireless signals. The schedule indicates a resource allocation for each of the transmitting systems. The resource allocation specifies an allocated time period. The receiving system is also configured to inform each transmitting system of the resource allocation and, for each resource allocation in the schedule, receive a plurality of instances of a wireless signal via the antennas and/or antenna elements and combine the instances by using an antenna configuration which is based on at least reception antenna weights determined in relation to a transmitting system associated with the resource allocation.

Abstract: A method comprises listening (151) for transmission of a preamble by a transmitting device to a recipient and receiving (153) data in a second time interval upon receiving the preamble in a first time interval. The second time interval succeeds the first time interval. The method further comprises listening (155) for transmission by the recipient of a message, e.g. a NACK, indicating that data transmitted in the second time interval was not successfully received by the recipient and retransmitting (157) the data in a fourth time interval upon receiving the message in a third time interval.

Abstract: A first method comprises transmitting (101) a preamble in a first time interval in a first frequency resource, transmitting (103) a first portion or a first copy of data in the first frequency resource in a second time interval, and transmitting (105) a second portion or second copy of the data in a second frequency resource in the second time interval. The second time interval succeeds the first time interval and the second frequency resource is separate from the first frequency resource. A second method comprises listening (111) for transmission of a preamble, transmitting (115) data in a second time interval succeeding a first time interval upon determining that the preamble was not received in the first time interval, and refraining (113) from transmitting data in the second time interval upon determining that the preamble was received in the first time interval.

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 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: A receiving system (1) is configured to determine reception antenna weights for a plurality of antennas and/or antenna elements for each transmitting system of a plurality of transmitting systems (11, 22-65) for receiving wireless signals using receive beamforming. The receiving system is further configured to determine a schedule for receiving the wireless signals. The schedule indicates a resource allocation for each of the transmitting systems. The resource allocation specifies an allocated time period. The receiving system is also configured to inform each transmitting system of the resource allocation and, for each resource allocation in the schedule, receive a plurality of instances of a wireless signal via the antennas and/or antenna elements and combine the instances by using an antenna configuration which is based on at least reception antenna weights determined in relation to a transmitting system associated with the resource allocation.

Abstract: The client device (1) of the invention is configured to receive service information from a first network device (19) in a first communication network, determine time periods (71) from the service information and transmit client information to a second network device (11) in a second communication network. The time periods indicate when the client device is unavailable for receiving transmissions from the second network device and the client information identifies the time periods. The second network device is configured to receive the client information from the client device, determine exclusion time periods (72) from the client information, prepare transmission of a data unit (61, 63) to the client device, schedule transmission of the data unit at a time outside the exclusion time periods, and transmit the data unit to the client device at the scheduled time.

Abstract: The invention relates to a method for establishing a communication service with a user equipment in the coverage area of a base station is disclosed. The base station is part of a telecommunication system comprising a plurality of base stations connected to a core network containing a connection information database. In the method, at least one communication identifier is received by the base station of the user equipment in the coverage area of the base station after the base station has processed information indicative of a disconnection between the base station and the connection information database, e.g. a disconnection between the base station and the core network. The received at least one communication identifier is stored in a local storage associated with the base station. The communication service is established via the base station using the communication identifier from the local storage.

Abstract: The invention relates to a method for establishing a communication service with a user equipment in the coverage area of a base station is disclosed. The base station is part of a telecommunication system comprising a plurality of base stations connected to a core network containing a connection information database. In the method, at least one communication identifier is received by the base station of the user equipment in the coverage area of the base station after the base station has processed information indicative of a disconnection between the base station and the connection information database, e.g. a disconnection between the base station and the core network. The received at least one communication identifier is stored in a local storage associated with the base station. The communication service is established via the base station using the communication identifier from the local storage.

Abstract: A system (1) is configured to select candidate sets of cell groups from a collection of sets of cell groups and arrange transmission of one or more messages to multiple mobile devices (11-15). The one or more messages specify at least one cell group per candidate set of cell groups for each of the mobile devices. The system is further configured to receive responses to the one or more messages. The responses comprise feedback from each of the mobile devices on the specified cell groups. The system is further configured to select one or more sets of cell groups from the candidate sets based on the received responses. A mobile device is configured to perform measurements on the specified cell groups after receipt of the one or more messages and to transmit the feedback in dependence on the measurements.

Abstract: A system (1) is configured to associate each of multiple sets of cell groups to at least one of multiple successive time periods and for each successive time period, associate each of multiple mobile devices (11-15) to one cell group of the set associated with the time period. The system is further configured to arrange transmission of one or more messages to the mobile devices, the messages instructing each mobile device to participate during each of the successive time periods in a cell group and control multiple base stations (21-25) to form, during each of the successive time periods, the cell groups. The system is also configured to determine and/or receive sets of performance indicator values relating to actual transmissions between the mobile devices and the base stations during the successive time periods, and select one set of the sets of cell groups based on the performance indicator values.

Abstract: A method of scheduling transmissions to client devices comprises receiving feedback (f1a-f3d) about a plurality of candidate downlink frequency resources (91-94) from a plurality of client devices and/or measuring channel qualities of a plurality of candidate uplink frequency resources (95-98) from receptions of transmissions, e.g. of the feedback, by the plurality of client devices. The method further comprises selecting a subset (92) of the plurality of candidate downlink frequency resources and/or a subset (96) of the plurality of the candidate uplink frequency resources based on the received feedback and/or the measured channel qualities. The method further comprises scheduling transmissions (dd1-3) to the client devices on the selected subset of candidate downlink frequency resources and/or transmissions (ud1-3) from the client devices on the selected subset of uplink frequency resources.

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: 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 invention relates a method and system for assessing coverage of a wireless access network within a desired area via cooperating wireless access networks and terminals capable of measurement and reporting across the different wireless access networks. The cooperation refers to, among other things, the ability of obtaining coverage assessment for one of the wireless access networks using results of the measurements collected at one of the other wireless access networks. In this manner, more accurate and complete coverage assessment may be obtained, relative to the prior art approaches.