Abstract: Techniques for facilitating device-to-device (D2D) communications using a high efficiency distributed channel access scheme are generally described herein. In some examples, a communication zone allocated for wireless D2D communications is divided into resource contention and scheduled transmission portions. The resource contention segment may be used to transmit a request message from a transmitting device to a receiving device (a request-to-send message), and transmit a response to the request message from the receiving device to the transmitting device (a clear-to-send message). The response can indicate a time for the data transmission to occur during the scheduled transmission segment. During the scheduled transmission segment, the scheduled data transmission and other D2D data transmissions among the various devices will be performed. In further examples, contention access techniques may be used during the resource contention segment to manage access to the resource channel.

Abstract: An eNodeB operable to perform Enhanced Interference Mitigation & Traffic Adaptation (eIMTA) is disclosed. The eNodeB can select a radio network temporary identifier (RNTI) that is used for eIMTA. The eNodeB can determine a periodicity for monitoring a physical downlink control channel (PDCCH) with the RNTI. The eNodeB can determine a set of subframes to monitor the PDCCH with the RNTI within the periodicity. The eNodeB can encode, for transmission to a user equipment (UE), the RNTI, the periodicity for monitoring the PDCCH with the RNTI, and the set of subframes to monitor the PDCCH with the RNTI.

Abstract: User equipment and base stations can enable access to secondary radio access technology (S-RAT), a cross radio access technology (RAT) scheduling between a primary RAT (P-RAT) and a secondary RAT (S-RAT) and/or cross-scheduling in a same RAT with different optimizations and use/partition for different applications (e.g., a regular partition with a carrier resource (referred to as P-RAT) and an additional resource partition/region for device-to-device (D2D) or machine-type-communication (MTC) application (referred to as S-RAT)). Cross-RAT/partition-scheduling can include when S-RAT is scheduled by P-RAT or when P-RAT is scheduled by S-RAT.

Abstract: Techniques, apparatus and methods are disclosed that enable reduced signaling overhead in a fifth generation (5G) wireless system. The system includes support for asynchronous uplink transmission, resource pool configuration, acknowledgement response and retransmission. For example, in a Type-1 transmission scheme, a user equipment (UE) selects one resource within the resource pool and transmits data in the uplink on the selected resource. In a Type-2 transmission scheme, a UE selects one resource within a scheduling request (SR) region in the resource pool, transmits the SR for the resource which contains the resource allocation for data transmission, and transmits the uplink data on the resource which is indicated in the SR information.

Abstract: An eNodeB (eNB), user equipment (UE) and method of providing a quasi-orthogonal multiple access (QOMA) resources are generally described. The UE receives allocation of orthogonal multiple access (OMA) and non-OMA (NOMA) resources. The UE transmits data up to a maximum NOMA rate and NOMA Modulation and Coding Scheme (MCS) using the NOMA resources without receiving an explicit transmission grant from the eNB. The eNB may allocate multiple NOMA regions associated with different maximum rates, MCSs, number of UEs, UE types, applications and sizes. If the data exceeds the NOMA conditions or the UE is unable to transmit data using the allocated NOMA resources or does not receive an acknowledgement from the eNB regarding reception of the transmitted data, the UE may request an explicit grant of the OMA resources from the eNB and, upon receiving an allocation of the OMA resources, subsequently transmit the data using the allocated OMA resources.

Abstract: Embodiments of a machine-type communication (MTC) User Equipment (UE) and methods for configuring a MTC UE using an evolved Node B (eNB) are generally described herein. A method for configuring a UE for communication performed by circuitry of an evolved Node B (eNB) may include broadcasting, from the eNB, a physical downlink control channel (PDCCH) transmission on a licensed band, transmitting, from the eNB to the UE, a physical broadcast channel (PBCH) transmission multiplexed with a machine-type communication (MTC) PBCH (M-PBCH) transmission, the M-PBCH transmission including a MTC master information block (M-MIB) in a MTC region of the licensed band, wherein the MTC region includes a subset of frequencies of the licensed band, and transmitting, from the eNB to the UE, a first data transmission on the MTC region in a downlink.

Abstract: Embodiments of an Evolved Node-B (eNB), User Equipment (UE), and methods for flexible duplex communication are generally described herein. The eNB may transmit a downlink control information (DCI) block to the UE during a group of time-division duplex (TDD) sub-frames. The eNB may further receive an uplink control information (UCI) block from the UE during the group of TDD sub-frames. A first candidate flexible duplex format for the TDD sub-frames may include a downlink control portion and an uplink control portion. A second candidate flexible duplex format for the TDD sub-frames may include a downlink control portion and may exclude uplink control portions.

Abstract: Embodiments described herein include devices, methods, and instructions for managing beam interpolation in massive multiple-input multiple-output (MIMO) communications. In one example embodiment, an evolved node B is configured to transmit to a UE using massive MIMO by transmitting multiple beamformed reference signals on multiple transmission beams each associated with a different plurality of antennas. The eNB receives beam interpolation information back from the UE, and then generates a data transmission that is sent to the UE using an interpolated transmission beam from a first and second transmission beam.

Abstract: Disclosed is a method of transmitting, from an enhanced Node B (eNB), an indication of an uplink/downlink (UL-DL) subframe configuration of a scheduling cell and a scheduled cell in a wireless time-division duplex (TDD) system. Embodiments include identifying the type of the UL-DL subframe configuration of the scheduling cell and determining a UL-DL subframe configuration to use for UL resource allocation of the scheduled cell. Other embodiments include identifying a reference UL-DL subframe configuration to use for UL resource allocation of the scheduled cell.

Abstract: Embodiments of user equipment and methods for improved uplink transmission power management and scheduling, are generally described herein. For example, in an aspect, a method of uplink power management is presented, the method includes determining whether a total desired transmission power exceeds a total configured maximum output power for a subframe. When the total desired transmission power exceeds the total configured maximum output power, the method includes allocating a minimum proactive power limitation to each serving cell, assigning a remaining power to one or more channels based on priority, and computing a total power assignment based on the allocating and the assigning.

Abstract: Various embodiments may be generally directed to techniques for transmitting and receiving one or more reference signals opportunistically within a window over an unlicensed carrier. Various embodiments provide techniques for determining a configuration of the window within an operating environment that may include one or more different radio access technologies (RATs). Various embodiments provide techniques for transmitting the one or more reference signals opportunistically within the window based on an availability of a wireless communications medium. Various embodiments provide techniques for receiving and recovering the one or more reference signals regardless of their location within the window, thereby improving communications in an unlicensed spectrum shared by a variety of different communication devices that may operate according to a variety of different communication protocols.

Abstract: Apparatus, systems, and methods to implement inter-beam mobility control in MIMO communication systems are described. In one example, apparatus of an evolved Node B (eNB) comprises circuitry to configure a periodic transmit (TX) beamforming process for a user equipment (UE), wherein a plurality of different TX beams are used in a plurality of different beamforming reference signals (BRS), receive, from the UE, a selected TX beam index which identifies a selected TX beam, and schedule subsequent transmissions to the UE on the selected TX beam. Other examples are also disclosed and claimed.

Abstract: Techniques are described for compressing the PUCCH resources reserved for acknowledging downlink data transmissions when those resources are implicitly signaled by EPDCCHs that schedule the downlink transmissions in TDD mode. An acknowledgement resource offset field transmitted in the EPDCCH is configured to correspond to one or more values that compress the region in PUCCH resource index space that would otherwise be reserved for the subframes of a bundling window.

Abstract: Disclosed herein are apparatuses, systems, and methods for reference signal design for initial acquisition, by receiving a first primary synchronization signal (PSS) and a first secondary synchronization signal (SSS) from a first transmit (Tx) beam, in first contiguous orthogonal frequency division multiplexing (OFDM) symbols of a downlink subframe. A UE can receive at least a second PSS and a second SSS from a second Tx beam in contiguous OFDM symbols of the downlink subframe. A UE can then detect beamforming reference signals (BRSs) corresponding to the first Tx beam and the second Tx beam, based on identification of physical cell ID information and timing information processed from the first PSS, the second PSS, the first SSS, and the second SSS. The UE can select the first Tx beam or the second Tx beam that was received with the highest power, based on the BRSs. Other embodiments are described.

Abstract: Described is an apparatus of a first User Equipment (UE) operable to communicate with on a wireless network. The apparatus may comprise a first circuitry, and a second circuitry. The first circuitry may be operable to establish a parameter set defining 5G Physical Downlink Control Channel (xPDCCH) transmission to the UE. The second circuitry may be operable to generate, for transmission to the UE, one or more messages including the parameter set.

Abstract: Generally discussed herein are systems, apparatuses, and methods that can provide a coverage enhancement to a coverage limited device. According to an example a method can include repeating a Physical Broadcast Channel (PBCH) data transmission multiple times over multiple sub-frames to a coverage limited Machine Type Communication (MTC) User Equipment (UE), or repeating the PBCH data transmission two or three times within one sub-frame to the coverage limited MTC UE.

Abstract: Embodiments of the present disclosure describe systems and methods for hybrid reference signal transmission in wireless communication. In some embodiments, an apparatus may include assignment logic to assign indices to a first set and a second set; identification logic to identify resource elements for a hybrid reference signal in accordance with a first rule for each index in the first set and in accordance with a second rule for each index in the second set, the second rule different from the first rule; and transmission logic to provide the hybrid reference signal for wireless transmission using a common transmission mode in the identified resource elements. Other embodiments may be described and/or claimed.

Abstract: The present disclosure describes embodiments of apparatuses, systems, and methods for that include and apply an association between one or more first antenna ports that carry Enhanced Physical Downlink Control Channel (EPDCCH) data and one or more second antenna ports that carry Physical Downlink Shared Channel (PDSCH) data in connection with machine type communications.

Abstract: Devices and methods of receiving a PDCCH-less xSIB are generally described. A UE receive a xPBCH that occurs in a 0th or a 25th subframe and an ePBCH in an ePBCH transmission block. The ePBCH has the xSIB and is received on different Tx beams. The ePBCH spans consecutive symbols on the same subcarrier and with the same ePBCH symbol. The frame number, subframe number and symbol number of the ePBCH is dependent on a subframe number and symbol number of the xPBCH. The number of beams received for a particular symbol is dependent on a total number of beams, a beam sweeping time for the beams and a transmission periodicity of the xPBCH and ePBCH. The UE also uses different OCCs to demodulate a DMRS from different APs, in a same PRB as the ePBCH.

Abstract: Methods, apparatuses, and systems are described related to interference averaging to generate feedback information and interference averaging to demodulate receives signals. In embodiments, an evolved Node B (eNB) may transmit interference averaging information to a user equipment (UE) including a time domain averaging indicator indicating a time domain averaging window to be used by the UE for averaging interference measurements in a time domain or a frequency domain averaging indicator to indicate a frequency domain averaging window to be used by the UE for averaging interference measurements in a frequency domain. Additionally, or alternatively, the eNB may transmit an interference resource group (IRG) indicator to the UE to indicate an IRG over which the UE is to perform interference averaging to facilitate demodulation of signals received by the UE from the eNB.