Abstract: Offloading Mechanism Using Load-Dependent Offloading Criteria Various communication systems may benefit from load adjustments, such as on-loading or off-loading. For example, third generation partnership project, 3GPP, and wireless local area network, WLAN, systems may benefit from a load-dependent load adjustment mechanism. A method can include obtaining (110), at a user equipment, at least one load-dependent criteria for load-adjusting. The interworking rule can relate to a mobile net work and a local area network. The method can also include applying (120), by the user equipment, the at least one load-dependent criteria when load-adjusting.

Abstract: There are provided measures for uplink control information signaling in inter-site downlink carrier aggregation scenarios. Such measures exemplarily include obtaining uplink transmission resources for an uplink control information transmission on said primary carrier, deriving a receiving timing for said uplink control information transmission, detecting said uplink control information transmission on said primary carrier based on said uplink transmission resources and said receiving timing, and decoding uplink control information from said uplink control information transmission.

Abstract: A method comprising: receiving an uplink grant at a user equipment, the uplink grant comprising information; using the information to determine uplink subframe scheduling for a hybrid automatic repeat request procedure over a plurality of subframes; using the information to determine, for each transmission of the hybrid automatic repeat request procedure, whether to retransmit previously transmitted data or to transmit new data; and using the information to determine a modulation and coding scheme and a redundancy version for each transmission of the hybrid automatic repeat request procedure, in dependence on the determination of whether to retransmit previously transmitted data or to transmit new data; and the information received at the user equipment comprising information of at least one parameter which is common to each transmission of the hybrid automatic repeat request.

Abstract: There is provided a radio bearer to user equipment on a first component carrier by a first network node and on a second component carrier via a second network node connecting to the first network node. A control plane configuration message is transmitted that indicates an uplink component carrier of a network node that terminates an air-interface protocol linked to the first and/or the second component carrier. The uplink component carrier (it can be more than one) is then used for uplink transmission of data units that include information about reception of data units of the air-interface protocol.

Abstract: An apparatus and a method is provided, by which data is sent to and/or received from a first network control node and at least one second network control node by a carrier aggregation, uplink scheduling information is established and sending of the uplink scheduling information is managed individually for the first network control node and the at least one second network control node.

Abstract: The invention relates to an apparatus including at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: convey a radio resource reconfiguration message to a user device for carrying out secondary cell configuration for downlink data conveyance using inter-site carrier aggregation functionality, and obtain and/or convey information on completion of the secondary cell configuration and/or activate downlink data forwarding to a secondary cell node.

Abstract: A method including determining whether an apparatus is to operate in a first, second or third mode of operation; wherein said first mode of operation includes a first level of activity, said second mode of operation includes a second level of activity that is lower than said first level of activity, and said third mode of operation includes a third level of activity that is lower than said second level of activity; applying a first reference signal transmission regime when in said second mode of operation; and applying a second reference signal transmission regime when in said third mode of operation.

Abstract: A method, apparatus and computer program product are provided to receive, at a user equipment, an indication providing a cell location to which the user equipment, operating in a dual connectivity mode, should transmit a buffer status report for one or more bearers, the cell location being one of a first location, a second location, or a first location and second location and in response to being triggered, causing buffer status report to be transmitted to the location provided in the indication. In some embodiments, the bearer may be a split bearer. In some embodiments, the indication may be provided by RRC signaling, MAC signaling or physical layer signaling.

Abstract: Systems and techniques for changing between secondary cells in dual connectivity communication. A user device (110A) operating in dual connectivity with a master base station (102) and a source base station (106A) transmits a change request to a target secondary base station (106B), seeking a connection change to a target base station that is to be used as the secondary base station. The target base station (106B) notifies the master base station (102) of the change request, and the master base station performs changeover operations—for example, notifying the source base station (106A) that it is no longer to be used in dual connectivity with the user device (110A) making the request, and notifying the user device (110A) that the change request has been accepted, with the user device (110A) then proceeding to establish connection with the target secondary base station (106B).

Abstract: A method for use in a user equipment, including transferring data to the base station of a first cell (A1); sending an uplink scheduling request to the base station of a second cell (A3) in dependence on the condition that the user equipment has sufficient transmission power for performing inter-site carrier aggregation (A2); receiving an uplink resource allocation message from the base station of the second cell (A5) if the load of the second cell satisfies predetermined conditions (A4); transferring data to the base stations of the first and second cells via carrier aggregation (A6).

Abstract: Various example embodiments are disclosed herein. A technique is provided for detecting, by a secondary base station (BS), a trigger condition in a wireless network, the wireless network including a mobile station (MS) that is connected to both a master base station (master BS) and a secondary base station (secondary BS), and sending a protocol data unit (PDU) status report from the secondary BS to the master BS in response to the secondary BS detecting the trigger condition, the PDU status report identifying one or more PDUs or portions thereof for further transmission to the MS.

Abstract: Provided are methods, corresponding apparatuses, and computer program products for a fast handover. A method comprises generating, at a source base station serving a user equipment, a first message and a second message including security information for security communication between a target base station and the user equipment after a fast handover. The method also comprises transmitting simultaneously, from the source base station, the first and second messages respectively to the target base station and the user equipment. With the claimed inventions, a fast X2 handover procedure is complemented and becomes more feasible with proposed security handlings, making it possible to decrease the service interruption during X2 handover for users and hence improve the user experiences.

Abstract: Apparatus, methods, computer program products, systems and circuits are provided that allow for persistent uplink and downlink resource allocations. A method includes: allocating resources to a user equipment for a data flow over a plurality of time intervals with a single signaling event at a wireless network radio network layer; and informing the user equipment of the allocated resources.

Abstract: A method including receiving signals at a first frequency and at a second frequency; and switching between the first frequency and the second frequency during one of a plurality of subframes within a radio frame for transmission subsequent to said receiving.

Abstract: In an LTE-A mobile communications system, provision of additional random access resources, called “shadow” PRACH, that are available to User Equipments, UEs, for a contention-free access procedure during handover. eNBs provide information on PRACH resources, broadcasting a first set of resources available for contention-based and contention-free random access and indicating via the X2 interface to neighbouring eNBs such additional PRACH resources, together with corresponding preambles, which are in turn indicated via dedicated signalling to UEs during a handover procedure.

Abstract: According to embodiments of the invention, an apparatus is provided which includes a connection unit configured to send and/or receive data to and/or from a secondary network control node, a processor configured to establish a configuration preparation message for the secondary network control node for preparing a carrier aggregation in which data to a user equipment is transmitted by at least two component carriers, and in which at least one first component carrier is provided between the apparatus and the user equipment and at least one second component carrier is provided between the secondary network control node and the user equipment, wherein the configuration preparation message includes configuration preparation information for the carrier aggregation, and the connection unit is configured to send the configuration preparation message to the secondary network control node.

Abstract: An apparatus at least one processor, and at least one memory for storing instructions to be executed by the processor, wherein the at least one memory and the instructions are configured to, with the at least one processor, cause the apparatus at least: to create at least one pool of communication resources for a fast handover procedure, wherein at least one set of communication resources is allocated to a pool of communication resources, and to cause a transmission of information indicating the content of the at least one pool of communication resources to a neighboring cell for allocating the pool of communication resources to the neighboring cell.

Abstract: Various communication systems may benefit from synchronized physical layer reconfiguration among user equipment, macrocell and small cell in macrocell-assisted small cell deployments. A method may include dynamically changing a physical layer configuration of transmission of uplink control information in a network. The method may also include applying the dynamic change of the physical layer configuration between at least one user equipment and at least two transmitting devices The method may also include performing random access channel procedures for a physical layer reconfiguration between at least one user equipment and at least two transmitting devices.

Abstract: A method includes receiving at least one reference signal from a first cell in a less active state and at least one reference signal from a second cell in a less active state within a same or different sub frames of a set of sub frames, wherein said at least one reference signal from the first base station is associated with different resource elements of said set of sub frames to those associated with the at least one reference signal from the second cell.

Abstract: A method may include receiving access network selection information from a user equipment and providing network selection information in dependence on said requested access network selection function information.