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: The present invention relates to the technical field of communications, and disclosed are a mobile station locating method and device for a cluster system. The method includes: through a control channel, activating a location information uploading function of a mobile station which needs location tracking; over a location tracking data service channel, sending a location information request message to the mobile station, the location tracking data service channel being a service channel with the same frequency as and a different time slot from the control channel; over the location tracking data service channel, receiving a location information response message sent by the mobile station, the location information about the mobile station being carried in the location information response message; and according to the location information about the mobile station, determining the current location of the mobile station.

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: The present invention relates to devices, methods and computer program products concerning a communication link in, for example, a so-called unlicensed band.

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 data transmission method is provided. The method includes obtaining configuration information, wherein the configuration information indicates transmission resources of a random access preamble and payload data corresponding to the random access preamble, transmitting the random access preamble and the payload data at the transmission resources, modulating the payload data using a modulation scheme supporting asynchronous transmission, and receiving feedback information, wherein the feedback information comprises an indication which indicates whether the payload data is successfully received. Various examples of the present disclosure also describe a method for receiving data with space multiplexing which is applied to a base station side, and further describe a terminal and a base station.

Abstract: A method for adaptively adjusting a modulation coding scheme and a reference signal pattern. The method includes: determining a Modulation Coding and Reference Signal Pattern Scheme (MCPS) index according to channel status information, the MCPS being used for indicating a reference signal pattern, a modulation scheme and/or a modulation order and TBS; performing communication according to the reference signal pattern, modulation scheme and/or modulation order and TBS corresponding to the MCPS index. Another example of the present disclosure further provides a corresponding eNB, terminal and system. With examples of the present disclosure, the reference signal pattern and modulation coding scheme may be adaptively and jointly adjusted according to requirements to obtain the optimal transmission efficiency.

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: 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, 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: 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: It is provided a method, comprising camping on a first cell in a terminal mode, wherein, in the terminal mode, a mode-enabling downlink signal from the first cell is required; checking if a transition information about an intended transition of the first cell to a sleeping mode is received and if an apparatus performing the method camps in the terminal mode on the first cell, wherein in the sleeping mode of the first cell the mode-enabling downlink signal is not received from the first cell; transmitting a complaint to the first cell if the transition information is received and the apparatus camps in the terminal mode on the first cell.

Abstract: There is proposed a mechanism for controlling and conducting a discovery procedure of small cells or secondary cells located in a macro cell or primary cell. The discovery procedure is based on a discovery signal communicated via PDCH and based on a positioning reference signal (PRS). For configuring the signaling of the discovery signal, frequency domain multiplexing for splitting resources of the PRS in the frequency domain for increasing capacity, and/or usage of reserved communication resources for the signaling of the discovery signal are employed. Assistance information is provided to the UE for supporting the discovery of small cells.

Abstract: A method and a network side device for trunking communication are provided, and the method includes: in the frequency hopping synchronization of the trunking communication, sending a frequency hopping synchronization information frame to a mobile terminal intended to communication, wherein the frequency hopping synchronization information frame includes the frequency hopping synchronization information. The amount of the transmitted synchronization information is large, the time for establishing synchronization is short, and the confidentiality is strong; and the technical difficulty of the implementation is not high.

Abstract: A method for processing magnetostrictive guided wave detection signals, including: 1) obtaining an analysis signal by capturing an original magnetostrictive guided wave detection signal; 2) performing band-pass filtering on the analysis signal to obtain a signal, and initializing i to 0; 3) obtaining a group of signals x(i), x(i+1), . . . , x(i+M?1) using a rectangular window with a width of M; 4) forming a matrix A; 5) performing singular value decomposition on the matrix A to obtain a singular matrix B; 6) setting eigenvalues in the matrix B smaller than the median to 0 to obtain a matrix C, and performing inverse singular value transformation on the matrix C to obtain a matrix D; 7) recovering a group of processed signals from the matrix D and calculating energy z of the group of processed signals; and 8) setting i to (i+1) and repeating steps 3)-7) until i=N+1?M.

Abstract: The present disclosure provides a method for performing non-orthogonal communication by a terminal in a wireless communication system, the method including: monitoring scheduling signaling; receiving a multi-layer signal in non-orthogonal transmission according to the monitored scheduling signaling and demodulating the multi-layer signal if non-orthogonal transmission exists; and calculating and feeding back channel state information applied to the non-orthogonal transmission.

Abstract: A method, apparatus and computer program product are provided for enabling efficient allocation of discovery resources for device to device communications. An example method may comprise establishing a cellular network connection to an access point. The method may further comprise establishing a local area network connection to a user equipment. Additionally, the method may comprise either receiving offloaded data for the user equipment from the access point via the cellular network connection and relaying the offloaded data to the user equipment via the local area network connection, or receiving offloaded data for the access point from the user equipment via the local area network connection and relaying the offloaded data to the access point via the cellular network connection. Similar and related example methods, example apparatuses, and example computer program products are also provided.

Abstract: An apparatus and a method is provided by which it is determined that at least one user equipment should perform detection and/or measurements with respect to at least one network control node, the at least one network control node is instructed to send a predetermined aperiodic signal to the at least one user equipment, and the at least one user equipment is instructed to detect the predetermined aperiodic signal.

Abstract: The present application relates generally to use of radio resources in a radio access network (RAN) and, in more specific, Full-Duplex (FD) transmission on the same carrier. Due to the mobility of the UEs or the non-optimal grouping, two UEs belonging to different groups may be close to each other while performing transmission and cause serious transmission interferences to 5 each other. This is one of the problems which a method in accordance with the invention aims to solve. When the performing the method a RAN triggers a UE to measure 601 first interferences originated from a first group of UEs. Then the RAN triggers the same UE to measure 602 second interferences originated from a second group of the UEs. Finally, the RAN places 603 the UE into the first group, if the first interferences are higher than the second interferences. The both 10 groups of the UEs are composed of such user equipments which share a group-specific transmission pattern.