Abstract:
Some demonstrative embodiments include devices, systems and methods of multi-user uplink transmission. For example, an apparatus may include a transmitter to transmit a multi-user (MU) downlink transmission to a plurality of wireless stations; a receiver to receive from the plurality of wireless stations a plurality of acknowledgement (ACK) frames, at least one ACK frame from at least one wireless station including an uplink scheduling request indicating uplink resources requested by the wireless station; and a scheduler to schedule an uplink transmission from the at least one wireless station based on the uplink scheduling request, the transmitter to transmit at least one scheduling frame including scheduling information of the scheduled uplink transmission.
Abstract:
A communication method, the method comprising: establishing, by a first devive, a wireless device-to-device connection; receiving, by the first device, one or more core contents of a social network via a wireless network; and transferring, by the first device, the one or more core contents of the social network via the wireless device-to-device connection.
Abstract:
Some demonstrative embodiments include devices, systems and methods of multi-user uplink transmission. For example, an apparatus may include a transmitter to transmit a multi-user (MU) downlink transmission to a plurality of wireless stations; a receiver to receive from the plurality of wireless stations a plurality of acknowledgement (ACK) frames, at least one ACK frame from at least one wireless station including an uplink scheduling request indicating uplink resources requested by the wireless station; and a scheduler to schedule an uplink transmission from the at least one wireless station based on the uplink scheduling request, the transmitter to transmit at least one scheduling frame including scheduling information of the scheduled uplink transmission.
Abstract:
Novel adaptive silencing schemes for device-to-device (D2D) discovery based on loading conditions in a discovery zone are disclosed herein. These adaptive silencing schemes can be used to mitigate interference and data collisions in networks where D2D connections can be formed. In some embodiments, a silencing factor is used to probabilistically determine whether a user equipment (UE) will transmit one or more D2D discovery signals in the discovery zone. Loading conditions in a current discovery zone can be estimated using several different approaches and metrics described herein. The silencing factor can be increased or decreased for a subsequent discovery zone based on the values of one or more of the metrics described herein for the current discovery zone.
Abstract:
Described is an apparatus of an Evolved Node-B (eNB) operable to communicate with a User Equipment (UE) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to initiate a Listen-Before-Talk (LBT) procedure on a bandwidth of the wireless network, the bandwidth being unlicensed spectrum. The second circuitry may be operable to generate a transmission if the LBT procedure indicates that the bandwidth is idle, the transmission comprising a Physical Random Access Channel (PRACH) preamble portion and a message portion.
Abstract:
Technology for a wideband coverage enhancement (WCE) user equipment (UE) and a next generation node B (gNB) operable for communication in a MulteFire cell is disclosed. The WCE UE can identify selected resource blocks containing an enhanced physical downlink control channel (ePDCCH), wherein the selected resource blocks are identified using a master information block (MIB). The WCE UE can decode an ePDCCH transmission from the gNB. The WCE UE can identify a system information block MulteFire (SIB-MF) scheduled via the ePDCCH to allow the SIB-MF to be decoded.
Abstract:
Technology for a next generation node B (gNB) operable for frequency hopping in MulteFire communications is disclosed. The gNB can perform a clear channel assessment (CCA) for a selected hopping frequency. The gNB can identify a next hopping frequency in a set of hopping frequencies when an energy detection of the CCA is greater than a selected threshold. The gNB can encode data for a downlink transmission at a selected dwell time of a determined hopping frequency in the set of hopping frequencies when an energy detection of the CCA is less than a selected threshold.
Abstract:
Described is an apparatus of a User Equipment (UE). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to establish that Downlink (DL) transmissions from a second Evolved Node-B (eNB) will interfere in one or more subframes with Uplink (UL) transmissions from the UE to a first eNB. The second circuitry may be operable to modulate a UL transmission power based upon the established interference condition.
Abstract:
Machines or networked devices such as internet of things (IoT) devices operate to generate an unlicensed IoT (U-IoT) communication or enhanced Machine Type Communication (eMTC) based on frequency hopping operations on different channels. An anchor channel can be configured to carry system information and paging messages for the U-IoT/eMTC communication on the different channels. The system information and paging messages can include essential system information such as a system information block MulteFire (SIB-MF) message. Physical channels can be configured to enable component carriers anchored to a long term evolution (LTE) licensed band, and entirely comprise unlicensed carrier components that are unanchored to any LTE component carrier in a standalone configuration to enable transmission of the U-IoT communication in standalone communications in an unlicensed band.
Abstract:
Disclosed are apparatuses for communication devices. An apparatus for a communication device includes control circuitry configured to determine a discrete Fourier transform (DFT) of a constant amplitude zero autocorrelation waveform (CAZAC) sequence appended with zeros in the time domain to generate a frequency domain interpolated CAZAC sequence. The control circuitry is also configured to determine an inverse discrete Fourier transform (IDFT) of the frequency domain interpolated CAZAC sequence to generate a demodulation reference signal (DMRS), and cause the DMRS to be transmitted through a cellular data network. An apparatus for a communication device includes control circuitry configured to perform a Fourier transform on a received DMRS to obtain a resulting signal, and use the resulting signal as a reference to demodulate orthogonal frequency-division multiplexing (OFDM) symbols. The control circuitry is also configured to perform a minimum mean squares estimation (MMSE) channel estimation on the resulting signal.