Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may determine a set of groups of layers relating to a set of transport blocks (TBs) or a set of code division multiplexing (CDM) groups. The UE may group the layers such that the layers in each group have a minimal difference in signal-to-interference-plus-noise ratio (SINR) between the layers. The UE may select a different demodulation reference signal (DMRS) configuration for each of the set of groups of layers based on maximizing a communication efficiency metric for each group of layers. The UE may transmit an indication of the selected DMRS configurations for each group of layers to a base station via a field in a report. The base station may accordingly determine a DMRS configuration for each group of layers based on the DMRS configurations indicated by the UE.

Abstract: A message transmission method and a message transmission apparatus are provided. The message transmission method includes: obtaining, by a terminal, network congestion control configuration information; processing, by the terminal according to the network congestion control configuration information, a message generated by the terminal, and obtaining the processed message; and sending, by the terminal, the processed message. According to the method, a message generated by the terminal can be processed flexibly to relieve a network congestion problem in the Internet of vehicles.

Abstract: Systems and techniques are described that are directed to filter frequency response shift compensation, including compensating for shifting in the rejection band of the filter. Compensation for the shifting in the rejection band can include applying a pre-distortion to attenuate edge resource units (RUs), and applying PHY Protocol Data Unit (PPDU) scheduling schemes. For example, a PPDU scheduling scheme reduce bandwidth in the channel, thereby dropping the out of band RUs. Front ends provide feedback to a respective radio, which allows that radio to apply the appropriate pre-distortion. The front ends can include one or more filters enabling frequency domain coexistence between collocated radios operating in the differing Wi-Fi bands, and a coupler that provides the feedback indicating the frequency response shift to a radio. The radio can then apply a digital pre-distortion to compensate for the shifting in the rejection band.

Abstract: Radio equipment (10) is configured for tap separated channel estimation in a wireless communication system. The radio equipment (10) obtains a channel estimate (16) of a radio channel over which a reference signal (12) is received, and separates the channel estimate (16) into channel estimate components (20) that correspond to respective channel taps (22). The radio equipment (10) then compensates the channel estimate components (20) for Doppler shifts respectively associated with the channel taps (22) to which the channel estimate components (20) correspond. The radio equipment (10) processes the compensated channel estimate components (32) separately. Such processing comprises filtering, interpolating, and/or extrapolating. The radio equipment (10) then de-compensates the processed channel estimate components (34) for the respective Doppler shifts, and forms a combined channel estimate (42) of the radio channel by combining the de-compensated channel estimate components (38).

Abstract: According to some embodiments, a method is performed by a wireless device for transmitting uplink data. The method comprises determining a predetermined configuration according to which to transmit uplink data and one or more repetitions of the uplink data. The method further comprises determining a cyclic shift for one or more reference signals transmitted with the uplink data and the one or more repetitions of the uplink data. The method further comprises transmitting the uplink data, the one or more repetitions, and the one or more references signals to a network node. The uplink data and the one or more repetitions are transmitted according to the predetermined configuration. The one or more references signals are transmitted according to the cyclic shift.

Abstract: A communications device and method of communicating using a communications device is disclosed for performing device-to-device communications. The communications device is configured to determine in accordance with predetermined conditions whether the communications device is within a coverage area of a mobile communications network, and if the communications device is determined to be within the coverage area of the mobile communications network, to transmit or to receive signals via the wireless access interface to one or more other communications devices in accordance with device to device communications using communications resources of the wireless access interface allocated according to a first mode in which the mobile communications network performs resource allocation.

Abstract: In an aspect, a UE receives, from a network entity, a configuration of PRS or SRS-P resources for a positioning session, receives a configuration of at least one BWP from a serving BS, identifies a time-domain period for the positioning session where a set of parameters associated with the at least one BWP is to remain constant to achieve a first positioning accuracy requirement. The UE either performs positioning measurements on one or more of the PRS resources during the positioning session or transmits on one or more of the SRS-P resources during the positioning session. The UE determines an active BWP transition during the time-domain period from a first BWP to a second BWP that is associated with one or more changes to the set of parameters.

Abstract: A method and apparatus for restricting measurement based on result of a reference measurement in wireless communication system is provided. A wireless device, in a wireless communication system, receives configuration to perform a first measurement and a second measurement from a network, wherein the first measurement and the second measurement belong to different measurement categories. The wireless device performs the first measurement on unlicensed frequency. The wireless device determines whether to perform the second measurement on the unlicensed frequency based on result of the first measurement.

Abstract: Systems and methods are provided for transmitting buffer state report poll (BSRP) triggers from a WLAN device with a BSRP frequency that is based on an amount of pending data at the UL buffer of each station associated to the WLAN device. The BSRP frequency can further be based on a priority of the pending data at the UL buffer. The amount of pending data at the UL buffer can be compared to a threshold, the value of which can depend on the priority of the pending data, and the BSRP frequency can be based on the comparison.

Abstract: The present disclosure relates to a channel estimation method of a wireless communication device. The channel estimation method includes descrambling a pilot signal having a unit symbol, dividing the descrambled pilot signal, and estimating a channel value of the wireless communication device. The descrambled pilot signal may be divided into a plurality of frequency resources with a first frequency resource and a second frequency resource and generating a first signal chunk with the first frequency resource and a second signal chunk with the second frequency resource. The channel value of the wireless communication device may be estimated based on the first signal chunk and the second signal chunk.

Abstract: Apparatus, methods, and computer readable media for facilitating of measuring occasions for transmissions based on frequency division multiplexing and spatial division multiplexing are disclosed herein. An example method for wireless communication at a UE includes receiving, from a base station, a hopping pattern indication configuring a hopping pattern. The example method also includes measuring interference of respective CSI-RS transmitted to other UEs included in a UE group based on at least the hopping pattern indication. The example method also includes reporting the measured interference to the base station. An example method for wireless communication at a base station includes transmitting a hopping pattern indication to each of a plurality of UEs. The example method also includes transmitting reference signals for the plurality of UEs using the hopping pattern among multiple subbands, and receiving a report of interference measured by each of the plurality of UEs based on the reference signals.

Abstract: Certain aspects of the present disclosure provide techniques for capability information for sounding reference signal (SRS) improvements. An exemplary method generally includes determining a capability of the UE related to additional sounding reference signal (SRS) transmissions in a normal uplink (UL) subframe; transmitting, to a base station (BS), capability information indicating the determined capability of the UE; receiving SRS configuration information, wherein the SRS configuration information is based, at least in part, on the capability information; and transmitting at least one SRS in accordance with the SRS configuration information.

Abstract: Methods, systems, and devices are described for fountain hybrid automatic repeat request (HARD) for reliable low latency communication. A wireless device may transmit a data block based on a low latency operational mode. The device may then transmit a number of redundancy versions of the data block prior to determining whether an acknowledgement (ACK) has been received. In some examples the ACK may be an augmented ACK, which may be based on the number of redundancy versions received prior to successfully decoding the data block, and which may include an additional resource request. In some examples, the device may select an updated modulation and coding scheme (MCS) based on the augmented ACK. In some examples, the device may increase a number of frequency resources (e.g., component carriers) used for transmission based on the augmented ACK.

Abstract: Waveform-coding is applied to map successive on-off-keying (OOK) data bits onto successive multicarrier modulated symbols in time domain, wherein each multicarrier modulated symbol includes a set of sub-carriers in which alternating sub-carriers are set to non-zeros and zeros in frequency domain. The waveform coded multicarrier modulated symbols are up-converted to a carrier frequency to provide a data signal that is transmitted over a wireless channel.

Abstract: A wireless wideband transceiver may be able to communicate with multiple frequency-hopped spread-spectrum (FHSS) devices concurrently over multiple frequencies over a short range by including a plurality of digital chains corresponding to the FHSS physical channels, individually and dynamically compensated for in-phase/quadrature imbalance in the transmit and/or receive portion. To further improve communications the transceiver may also mitigate cross interference between adjacent channel signals that are received and/or transmitted simultaneously, avoid false reception and/or transmission of co-channel signals, delay respective FHSS channels transmissions relative to other channels transmissions, speed up connection to FHSS devices and coordinate Time Division Duplexing (TDD) operation according to application dependent TX/RX binary pattern.

Abstract: Apparatuses and methods for controlling a manner of delivering content to a content user in a mobile telecommunication network are provided. The content is sent to the content user using first a first transmission rate when the content user is in a first radio state and uses a first battery power, and then using a second transmission rate that is lower than the first transmission rate, when the content user is in a second radio state and uses a second battery power that is smaller than the first battery power. The sending is performed such as, (A) while delivering the content, an amount of the content already received by the content user to exceed an amount of the content used by the content user, and (B) to minimize an energy used by the content user during delivery.

Abstract: A mobile Internet-of-Things (IoT) edge device, comprising a reconfigurable processor unit including a substrate; a die stack coupled to the substrate and having a field-programmable gate array (FPGA) die element and a reconfigurable die element capable of serving as storage memory or as configuration memory based on configuration information; and a processor coupled to the substrate and configured to cooperate with the die stack for processing data; and a processor-independent connectivity unit coupled to the reconfigurable processor unit and including an antenna; a radio-frequency chip (RFIC) coupled to the antenna and configured to receive incoming signals and transmit outgoing signals over the antenna; circuitry configured to translate the incoming signals to incoming data or transmit the outgoing data to outgoing signals; and a system interface configured to transmit the incoming data to the reconfigurable processor unit for processing, and configured to receive the outgoing data from the reconfigurable p

Abstract: Provided are a method for transmitting configuration information and a terminal device, which may improve the data transmission performance between terminal devices in a Device to Device (D2D) system. The method includes that: a first terminal device sends a first sidelink transmission channel, the first sidelink transmission channel being configured to indicate at least one of the following configuration information: configuration information of a slot format, configuration information of a bandwidth part (BWP), configuration information of a synchronization resource on at least one carrier and configuration information of a synchronization resource on at least one BWP, and the configuration information indicated by the first sidelink transmission channel being used for communication between the first terminal device and a second terminal device.

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may transmit reference signals via a first antenna array of the first wireless device. The first wireless device may perform, according to a reporting configuration for self-interference at the first wireless device, a set of measurements on the reference signals received at a second antenna array of the first wireless device. The first wireless device may determine a priority associated with transmission of measurement reports associated with self-interference at the first wireless device. The first wireless device may then transmit, to a second wireless device and according to the reporting configuration, a measurement report including an indication of self-interference for full-duplex communications at the first wireless device that is based on performing the set of measurements on the reference signals, where the measurement report is transmitted in accordance with the determined priority.

Abstract: The present invention relates to a portable, affordable and user-friendly mobile RF radiation detection device. The device is composed of three major parts, namely, a sensor arrangement, a processing 5 unit, and a power supply. The sensor arrangement consists of a flexible sensor and an associated circuit element having few passive electrical components. The substrate of the sensor was made of nanoparticle treated flexible material preferably paper treated with the gold nanoparticles (AuNPs). The electrically conducting patches made 10 of conductive materials preferably silver pastes on the substrate are the key component in detecting the RF radiation from the mobile. The electrical signal generated by the RF sensor is sent to the processing unit, which further transmitted the signal to a mobile android application for displaying the result.