Abstract: The present invention relates to methods, apparatuses and a computer program product for carrier allocation. The invention includes defining change occasion for a base station for changing a component carrier. The invention further includes receiving, at a processor, from a first base station, information regarding carrier interference severeness between the first base station and a second base station, wherein the carrier interference severeness comprises at least one of an expected separately usable protected carrier number, the number of user equipments located in a common coverage area of the first and second base station, and the downlink traffic load related to the user equipments, and allocating carrier pattern for the first base station based on the received information.

Abstract: There are provided measures for cell clustering based configuration of flexible time division duplex communication, such as e.g. in layered heterogeneous network deployments.

Abstract: Systems and techniques for link condition reporting in multiple connection systems. A base station, such as a macro eNodeB (eNB) configures measurement objects and reporting objects for macro and local area links for a user device such as a user equipment (UE). The objects relating to the secondary links are configured for use when the user device is operating in a dual connection mode. Upon detection of a triggering event when the user device is in dual connection mode, the user device reports macro and secondary link information. In some embodiments of the invention, triggering may be based on events related to a specified frequency group, or may be direct measurements related to a specified frequency group.

Abstract: A method, apparatus and computer program product are provided for minimizing power consumption in a macro cell. A method and apparatus may establish a dual connection with a local area access point of a local area cell and a macro access point of a macro cell. The method and apparatus may also enter a power save mode in a macro cell by utilizing a first discontinuous reception (DRX) pattern in the macro cell in response to establishing the dual connection. The first DRX pattern may include a designated DRX active time period in which a communication device is designated to be active. The DRX active time period is aligned with a time period of a paging occasion of the apparatus.

Abstract: An apparatus and a method is provided, by which a first type cell is controlled, wherein a plurality of second type cells are located in the same area as the first type cell, wherein control signal transmission to at least one user equipment is carried out via the first type cell and data transmission to the at least one user equipment is carried out via one of a plurality of the second type cells, and handover of data transmission of a user equipment from a source cell being one of the plurality of second type cells to a target cell being another one of the plurality of second type cells is controlled. Moreover, also an apparatus and a method of e.g., a user equipment are provided, by which a handover of data transmission from a source cell being one of the plurality of second type cells to a target cell being another one of the plurality of second type cells is performed, while maintaining control signal transmission with the first type cell.

Abstract: Systems and techniques for link failure management in multiple connection systems. Upon detection of a link failure with a local area base station during a dual connection mode in which the user device is connected to a macro base station and a local area base station, a user device sends a failure indication and a measurement results report for serving and neighboring base stations to its serving macro base station, and selects a response to the failure based at least in part on evaluation information received from the macro base station. Upon detection of a link failure with a macro base station, the user device determines whether to reconnect to the macro base station or a different macro base station and whether to reconnect with the original local area base station or a different local area base station.

Abstract: Apparatus, methods, and computer programs that selectively transmit one or more local area buffer status reports by a macro base station over a macro link or transmit a macro buffer status report by a local area access point over a local area link in a dual connection deployment scenario in response to a cross link buffer status report trigger. The apparatus, methods and computer programs may include several cross buffer status reporting triggers. The user equipment may trigger cross buffer status reporting in response or incidental to one or more measurement events. The user equipment may also trigger cross buffer status reporting in response to or incidental to a link failure. The user equipment may also trigger cross buffer status reporting in response to receiving a request from an eNB.

Abstract: Embodiments include methods for providing information enabling a communication device operating in a hetnet comprised of an aggressor cell and one or more overlaid victim cells utilizing a common frequency spectrum, to at least partially cancel an interfering signal transmitted from the aggressor cell in order to more accurately measure one or more signals transmitted from a victim cell. Embodiments include methods for configuring the aggressor cell with information related to overlaid victim cells in the aggressor's coverage area, and methods for configuring a victim cell with information related to the aggressor's interference within the victim's extended coverage area. Embodiments also include methods for receiving measurements of a signal transmitted from a victim cell, and methods for making such measurements on the victim's signal utilizing the aggressor cell interference information.

Abstract: A wireless communication method of establishing and maintaining a cell cluster comprising at least one cell configured to communicate with at least one UE (User Equipment), comprising detecting a broadcast beacon signal. The method further comprises, in response to an absence of the broadcast beacon signal, assuming the role of a cluster head of a cluster having a specific intra-cell identifier, and broadcasting a beacon signal. In response to detecting the broadcast beacon signal and an absence of an intra-cell identifier, continuing to transmit and receive using a prior duplex communication configuration. Further, in response to detecting the broadcast beacon signal and a presence of the intra-cell identifier, joining the cell identified by the detected intra-cell identifier, and setting its intra-cell identifier based on the detected intra-cell identifier.

Abstract: A network controlling entity in a heterogeneous or local area network (such as a macro eNB) selects a set of network access nodes that share a common wake-up area code WUAC. The network controlling entity selects a transmission entity such as a motile terminal/UE and directs it to wirelessly transmit a signal on a given radio resource. The network controlling entity also informs each network access node within the set of the given radio resource on which they should listen for the signal. In various embodiments the network access nodes within the set can choose whether or not to listen for the signal and thus choose whether they will wakeup, or they can reply to the signal with a request for wakeup confirmation. In this manner WUAC-specific sets of small cells can be awakened only when needed for traffic offloading and thereby saving energy.

Abstract: A method, system, and computer program product that provides a two-index system for clusters of small cells in a wireless network. A first index is employed for access to and identification of a serving cell within a cluster of small cells. A second index indicates a group of small cells for determining mobility control. The first index may be derived from primary/secondary synchronization signals, or from frequency/time division multiplex signal position. The second index may be indicated in system/master information block signals or predefined as a plurality of small cells identified by the first index for each cell. Determination of physical cell identification is aided by providing a plurality of primary/secondary synchronization (PSS/SSS) signal alternating configurations with indicator, wherein a maximum number of configurations is predefined.

Abstract: A new random access procedure is introduced that does not use a timing advance for the uplink timing but instead uses the downlink timing for uplink timing. This is particularly viable when the propagation delay is short, for example with local area cells having a coverage range less than some predetermined threshold. From the mobile terminal's perspective it obtains downlink timing for a cell, transmits a scheduling request SR in a contention-based uplink resource, and in response to receiving an uplink resource allocation it transmits in the allocated uplink resource using the downlink timing. The terminal can get the configuration for that contention-based uplink resource from system information. From the uplink resource the terminal and network determines a SR-RNTI, which the network uses to address the uplink resource allocation and the terminal uses to find a pre-defined search space in which to look for that uplink resource allocation.

Abstract: A user equipment UE determines at least one first set SI of physical resource blocks PRBs, and detects downlink signaling within search spaces of set(s) SI. Through that downlink signaling the UE obtains a configuration for a downlink control channel, and that configuration indicates at least one second set S2 of PRBs and at least one search space specific for the UE which lies within S2. The UE utilizes the obtained configuration to monitor at least some of the search spaces of SI and the at least one search space specific for the UE of S2 for further downlink control signaling. Multiple implementations are detailed for how the UE gets SI. This invention is particularly useful for a configurable ePDCCH region in a stand-alone carrier where the UE is not able to get the new configuration from some other carrier such as a PCell whose configuration does not change.

Abstract: A method comprises controlling a mobile device comprising one or more wireless interfaces, one or more applications that require the mobile device to communicate wirelessly, and a database, to perform measuring power consumption during wireless communication in each of a plurality of circumstances in which one or more conditions are present for plural combinations of the one or more applications, and the one or more wireless interfaces and/or available access points, for each measurement of power consumption, recording in the database the measured power consumption (4.5) along with: information on the associated one or more conditions, and indicators identifying the one of the one or more applications and the one of the one or more wireless interfaces and/or access points (4.1), detecting a requirement of a first one of the one or more applications for wireless communication (4.

Abstract: A method, apparatus, and computer program product are provided to manage the establishment of a dual connection. A method according to an example embodiment may include causing a dual connection setup request message to be transmitted to a local area access point (LAAP) and causing a dual connection command to be transmitted to a user equipment (UE). The method further includes receiving a dual connection establishment complete message and causing resources associated with one or more split bearers to be released or suspended.

Abstract: An aggressor access node in a heterogeneous network sends to a victim access node a pattern of transmit power for designated low-interference subframes (e.g., LP-ABSs). Utilizing feedback information collected from the victim node which quantizes interference seen by user equipments (UEs) which are allocated at least some of those subframes, the aggressor node selects whether and how much to adjust transmit power for subsequent such subframes, then sends to the victim node a pattern of the adjusted transmit power for those subsequent subframes (e.g., an enhancement to relative narrowband transmit power RNTP). The victim node sends to UEs the pattern of transmit power and respective resource allocations in those designated low-interference subframes; then derives interference level per UE in those subframes based on channel quality indications received from the respective UEs; and sends to the aggressor access node feedback information which quantizes the derived interference levels.

Abstract: A method, apparatus, and computer program product are provided to manage handover procedures in a dual connection context. In the context of a method, a macro access point (MAP) may initiate a handover between a source and destination local area access point (LAAP) by causing a handover request to be transmitted to the destination LAAP. The method may further involve causing a handover command to be transmitted to a user equipment (UE), causing a data transfer inform message to be transmitted to the source LAAP, and receiving a UE context release message from the destination LAAP. In the context of another method, a LAAP may initiate a handover. The method may involve receiving a dual connection transfer request message from a source LAAP, receiving a dual connection transfer request acknowledge message from a destination LAAP and receiving a Path Switch Successful indication from a Mobility Management Entity.

Abstract: A method to coordinate ABS resource allocation to address inter-cell interference comprises sending a first message by a first eNB to a second eNB, the first message specifying an interference level and a target cell identifier of a target eNB; receiving, by the target eNB, a second message sent by the second eNB, the second message specifying a resource allocation and a target cell identifier of the target eNB; and the target eNB operating according to the resource allocation specified in the second message.

Abstract: An illumination device includes a wavelength conversion material layer with a first surface, which includes a wavelength conversion material and a scattering material; a light guide device located adjacent the wavelength conversion material layer on a side facing its first surface for directing an excitation light onto the first surface of the wavelength conversion material layer, and for directing a mixed light emitted from the first surface, which includes converted light and remaining excitation light not absorbed by the wavelength conversion material layer, into a light exit port. In this illumination device, the light guide device can collect the excitation light reflected by the wavelength conversion material layer effectively, which insures that adding scattering materials into the wavelength conversion material layer doesn't have a significant impact on the luminous efficiency of the illumination device, and resolves the conflict between color uniformity and luminous efficiency of the device.

Abstract: Provided are compounds having an inhibitory effect on sodium-dependent glucose cotransporter SGLT. The invention also provides pharmaceutical compositions, methods of preparing the compounds, synthetic intermediates, and methods of using the compounds, independently or in combination with other therapeutic agents, for treating diseases and conditions that are affected by SGLT inhibition.