Abstract: Embodiments of a method of operation of a power control coordinator to control transmission power of a plurality of Device-to-Device (D2D) pairs that co-exist with a Cellular User Equipment (CUE) that communicates with a base station of a cellular communications network comprises obtaining, for a particular time slot, delayed Network State Information (NSI) feedback from at least some of the plurality of D2D pairs. The method further comprises computing transmission powers for the D2D pairs, respectively, for the particular time slot using On-Line Convex Optimization (OCO) to solve an optimization problem that maximizes a weighted sum data rate of D2D pairs with a constraint of maximum expected interference to the base station. The method further comprises providing, to each D2D pair, an indication of the computed transmission power for the D2D pair for the particular time slot.

Abstract: Embodiments of a method of operation of a power control coordinator to control transmission power of a plurality of Device-to-Device (D2D) pairs that co-exist with a Cellular User Equipment (CUE) that communicates with a base station of a cellular communications network comprises obtaining, for a particular time slot, delayed Network State Information (NSI) feedback from at least some of the plurality of D2D pairs. The method further comprises computing transmission powers for the D2D pairs, respectively, for the particular time slot using On-Line Convex Optimization (OCO) to solve an optimization problem that maximizes a weighted sum data rate of D2D pairs with a constraint of maximum expected interference to the base station. The method further comprises providing, to each D2D pair, an indication of the computed transmission power for the D2D pair for the particular time slot.

Abstract: A method and device for adjusting a channel precoding matrix for one or more users operating in a virtualized Massive Multi-Input Multi-Output (M-MIMO) wireless network managed by a neutral host. Each of the users receive wireless services from one or more service providers (SP). For each service provider, a set of N antennas are selected from all available antennas managed by the neutral host. Channel information for each user of each service provider is obtained. A precoding matrix from each SP is defined according to each SP channel and state information. If all channel state information (CSI) parameters are known, and if the CSI parameters are all known, a final precoding matrix based on the known CSI is derived, whereas if only a subset of CSI parameters are known, a final precoding matrix based on the known subset CSI parameters is derived.

Abstract: Systems and methods for file transfer by mobile user collaboration are provided. In some embodiments, a method of operation of a first wireless device for uploading a data file as multiple pieces to a destination network node in a wireless communications network includes dividing the data file into the multiple pieces; sending one or more pieces of the multiple pieces to one or more second wireless devices to be uploaded to the destination network node; and uploading one or more pieces via a Coordinated Multi-Point (CoMP) set of cooperating nodes in the wireless communication network. In this way, the first wireless device may be able to upload the data file to the destination network node faster than if the first wireless device uploads the entire date file directly.

Abstract: A method and device for adjusting a channel precoding matrix for one or more users operating in a virtualized Massive Multi-Input Multi-Output (M-MIMO) wireless network managed by a neutral host. Each of the users receive wireless services from one or more service providers (SP). For each service provider, a set of N antennas are selected from all available antennas managed by the neutral host. Channel information for each user of each service provider is obtained. A precoding matrix from each SP is defined according to each SP channel and state information. If all channel state information (CSI) parameters are known, and if the CSI parameters are all known, a final precoding matrix based on the known CSI is derived, whereas if only a subset of CSI parameters are known, a final precoding matrix based on the known subset CSI parameters is derived.

Abstract: A method and system for prioritized baseband processing in a wireless communication network is disclosed. Parameters affecting processing times for performing tasks associated with different user equipments are evaluated and the tasks are prioritized based on the evaluation. Each task is performed by the baseband processor at a time that is based on the priority assigned to the task.

Abstract: A base station node (BS) of a heterogeneous radio access network comprises a terminal locator (34) and a scheduler (36). The terminal locator (34) obtains an indication of location of a wireless terminal (30) in a cell served by the base station (BS), e.g., whether the wireless terminal (30) is in a center region (M) or an edge region (E) for the cell served by the base station node (BS). The scheduler (36) uses the indication of location to assign to the wireless terminal (30) a frequency of a frequency bandwidth usable by the heterogeneous radio access network. The scheduler (36) assigns a frequency from a partitioned portion of the frequency bandwidth if the cell served by the base station node is a micro cell and the wireless terminal is in an edge region of a micro cell. The scheduler (36) also assigns a frequency of the frequency bandwidth if the cell served by the base station node is a micro cell and the wireless terminal is in a center portion of the micro cell.

Abstract: A method of interference management of multiuser in-coverage device-to-device communications at a network node is presented. A WAN signal from a WAN device is received, the WAN signal being mixed with an interferer signal caused by a D2D communication between a transmitting D2D device and a receiving D2D device of a D2D pair. An attribute value difference between a first attribute value of the WAN signal and a second attribute value of the interferer signal is determined. If the attribute value difference does not meet a target difference, a transmission parameter of at least one of the WAN device and the transmitting D2D wireless device is controlled to adjust the difference to meet the target difference.

Abstract: A method for a network node for Device-to-Device (D2D) communication is provided. The method comprises identifying a D2D control condition for broadcasting a control signal to a group of D2D user devices. The method also comprises broadcasting the control signal to the group of D2D user devices, based on the identified control condition, wherein the control signal includes a resources history field indicative of a set of physical resources previously allocated to the group of D2D user devices. A method for a user device is also provided. The method comprises performing a D2D initialization procedure. The method further comprises receiving a D2D broadcast control signal from a network node.

Abstract: Systems and methods for interference and/or power reduction for multiple relay pairs using cooperative beamforming are provided. A method of operation of a network node in a cellular communications system includes determining beamforming weights for multiple subchannels for each of multiple relay nodes such that a parameter is minimized. The parameter is a maximum per subchannel interference and/or per relay power usage. Determining the beamforming weights includes determining a dual problem of the minimization of the parameter where a solution maximizing the dual problem will minimize the parameter; reformulating the dual problem into a semidefinite programming (SDP) problem; and determining if signal-to-noise ratio (SNR) constraints are active. If the SNR constraints are all active, the method includes determining optimal beamforming weights a first way and if the SNR constraints are not all active, determining optimal beamforming weights a second way.

Abstract: Systems and methods for file transfer by mobile user collaboration are provided. In some embodiments, a method of operation of a first wireless device for uploading a data file as multiple pieces to a destination network node in a wireless communications network includes dividing the data file into the multiple pieces; sending one or more pieces of the multiple pieces to one or more second wireless devices to be uploaded to the destination network node; and uploading one or more pieces via a Coordinated Multi-Point (CoMP) set of cooperating nodes in the wireless communication network. In this way, the first wireless device may be able to upload the data file to the destination network node faster than if the first wireless device uploads the entire date file directly.

Abstract: The present disclosure proposes a Virtual Shared Mobile (VSM) feature at eNodeB level, relay node, ore UE or device level that will allow multiple MTC devices to be grouped together and be presented to the rest of Mobile Network as one Virtual Shared Mobile (VSM). The MTC Application Servers will authenticate and manage individual MTC devices. This will decrease the number of devices that are managed by the mobile network and hence decreasing the control signalling volume. Devices belonging to the same Virtual Shared Mobile Group (VSMG) will use time division to share the same Radio Bearer (same IMSI) and hence decreasing the interference to the other UEs in the mobile network. Overall the disclosure will allow data gathering from a large number of MTC devices with limited impact on the Mobile Network.

Abstract: A heterogeneous radio access network (20) comprises a macro layer (22) including at least one macro base station (24) and a micro layer comprising at least one micro base station (26). In an example embodiment a base station node comprises a scheduler (40) and a communication interface (42). The scheduler (40) is configured to prepare a subframe for transmission over a radio interface by configuring the subframe to include a micro layer downlink control channel region in addition to a macro layer downlink control channel region. The communication interface (42) is configured to transmit at least the subframe over the radio interface.

Abstract: A wireless communication method and system are provided in which an uplink data stream that has uplink data associated with a user device is received. Channel performance data based at least in part on a portion of the uplink data stream is determined. A determination is made whether the channel performance data meets a predetermined performance level. The portion of the uplink data stream is discarded when the channel performance data does not meet the predetermined performance level. The portion of the uplink data stream is tagged for additional processing when the channel performance data meets the predetermined performance level.

Abstract: Presented is an apparatus and methods for determining if a determined systematic imbalance difference between a serving base station and one or more candidate base stations exceeds a threshold value and, if so, then using uplink information as part of a handover mechanism. The selective usage of uplink information in the handover mechanism can improve handover performance without unduly adding to complexity and signaling overhead.

Abstract: Idle mobile devices are used as cooperating devices to support coordinated multipoint transmission and reception for uplink and downlink communications between a primary mobile device and its serving base station. For uplink communications, the cooperating mobile devices receive the uplink transmission from the primary mobile device and retransmit the received data signal to the serving base station for the primary mobile device. For downlink communications, the cooperating mobile devices receive the downlink transmission from the serving base station and retransmit the received data signal to the primary mobile device.

Abstract: Systems and methods for interference and/or power reduction for multiple relay pairs using cooperative beamforming are provided. A method of operation of a network node in a cellular communications system includes determining beamforming weights for multiple of subchannels for each of multiple relay nodes such that a parameter is minimized. The parameter is a maximum per subchannel interference and/or per relay power usage. Determining the beamforming weights includes determining a dual problem of the minimization of the parameter where a solution maximizing the dual problem will minimize the parameter; reformulating the dual problem into a semidefinite programming (SDP) problem; and determining if signal-to-noise ratio (SNR) constraints are active. If the SNR constraints are all active, the method includes determining optimal beamforming weights a first way and if the SNR constraints are not all active, determining optimal beamforming weights a second way.

Abstract: Systems and methods for Mobile Relay Node (MRN) based Coordinated Multipoint (CoMP) operation in a cellular communications network are disclosed. In one embodiment, MRN based CoMP operation is utilized to provide interference mitigation for wireless devices, and preferably provide interference mitigation for cell edge wireless devices.

Abstract: Systems and methods for Mobile Relay Node (MRN) based Coordinated Multipoint (CoMP) operation in a cellular communications network are disclosed. In one embodiment, MRN based CoMP operation is utilized to provide interference mitigation for wireless devices, and preferably provide interference mitigation for cell edge wireless devices.

Abstract: Idle mobile devices are used as cooperating devices to support coordinated multipoint transmission and reception for uplink and downlink communications between a primary mobile device and its serving base station. For uplink communications, the cooperating mobile devices receive the uplink transmission from the primary mobile device and retransmit the received data signal to the serving base station for the primary mobile device. For downlink communications, the cooperating mobile devices receive the downlink transmission from the serving base station and retransmit the received data signal to the primary mobile device.