TECHNIQUES FOR EXTENDING AN OFDM WAVEFORM FOR MULTIPLEXING

    公开(公告)号:US20190036751A1

    公开(公告)日:2019-01-31

    申请号:US15952596

    申请日:2018-04-13

    Abstract: Aspects of the present disclosure provide systems, methods, and apparatuses for implementing the multiplexing of different orthogonal frequency-division multiplexing (OFDM) waveforms using a transmitter and receiver configured to process different types of signals without a need for distinct hardware structures. In one example, aspects of the present disclosure may include a transmitter configured to transmit both a first type of discrete fourier transform (DFT)-spread OFDM waveform and a second type of DFT-spread OFDM waveform that may be multiplexed over the wireless channel. In some aspects, the transmitter may modify the numerology of the zero-tail DFT-spread OFDM waveform to match the numerology of other OFDM waveforms (e.g., OFDM waveform with zero-guard or a single carrier DFT-spread OFDM with zero-guard).

    SHORT BURST CHANNEL DESIGN AND MULTIPLEXING
    53.
    发明申请

    公开(公告)号:US20180367272A1

    公开(公告)日:2018-12-20

    申请号:US16010001

    申请日:2018-06-15

    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for short uplink burst designs. In some cases, one sequence, from a plurality of sequences, may be transmitted in multiple tones of at least one short burst symbol conveying at least one bit of information. The plurality of sequences may have the same values at a first set of common tone locations for demodulation reference signals (DMRS) and groups of sequences from the plurality of sequences may be identified, each sequence in a group having a second set of common tone locations for DMRS.

    SEQUENCE BASED UPLINK CONTROL INFORMATION DESIGN FOR NEW RADIO

    公开(公告)号:US20180351724A1

    公开(公告)日:2018-12-06

    申请号:US15991727

    申请日:2018-05-29

    Abstract: The present disclosure generally relates to methods, and apparatus for implementing the methods, for using sequence based uplink control information in 5G New Radio wireless communications. The method may include a user equipment (UE) may construct a signal based at least on resource assignment information received from a base station. The resource assignment information received by the UE may indicate frequency resources, a base sequence index, and a shift index. In a non-limiting example, the resource assignment information may include frequency resource assignment information related to one or more clusters. In implementations in which the frequency resource information includes a plurality of clusters, each of the plurality of clusters use a different base sequence and may use the same or different cyclic shifts. These sequences may be multiplexed in a non-orthogonal manner. The UE may use the resource assignment information to transmit the constructed signal to the base station.

    UPLINK POWER CONTROL IN NEW RADIO (NR)
    55.
    发明申请

    公开(公告)号:US20180332542A1

    公开(公告)日:2018-11-15

    申请号:US15979008

    申请日:2018-05-14

    CPC classification number: H04W52/146 H04W52/248 H04W52/325 H04W52/367

    Abstract: Aspects of the present disclosure implement techniques for power control management between the base station and the UE to support multiple waveforms and services. In one example, the power control management system may implement independent power control loops for each waveform and service (e.g., eMBB, uRLLC, etc.) supported by the wireless communication system. For example, the base station may transmit a first power control command to a UE for first waveform (e.g., CP-OFDM) or service (e.g., eMBB) and a second power control command to the UE for the second waveform (DFT-OFDM) or service (e.g., uRLLC). Features of the present disclosure may also implement techniques that allow the base station to transmit a single power control command for configuring the power control for a plurality of waveforms or services. Upon receiving the power control commands, the UE may configure the transmission power for uplink traffic based on the power control commands.

    CONFIGURABLE INTRA-SLOT FREQUENCY HOPPING FOR A VARIABLE LENGTH UPLINK CONTROL CHANNEL

    公开(公告)号:US20180323932A1

    公开(公告)日:2018-11-08

    申请号:US15970646

    申请日:2018-05-03

    Abstract: The duration of variable length uplink control channels may vary over a wide range. Transmissions related to overhead may take up a larger percentage of symbols for shorter durations of the variable length uplink control channel. Disabling intra-slot hopping may be beneficial to decrease overhead (as a percentage). The apparatus may be an apparatus for wireless communication. The apparatus may include a transmitter or receiver and a processing system. The processing system may be configured to determine whether or not to use intra-slot frequency hopping for a variable length uplink control channel, and communicate information to the transmitter for transmission over the variable length uplink control channel or receive information from the receiver. The information may be received over the variable length uplink control channel, the information transmitted by the transmitter or received by the receiver based on the determination of whether or not to use intra-slot frequency hopping.

    TECHNIQUES FOR REDUCING ADJACENT CHANNEL LEAKAGE-POWER RATIO

    公开(公告)号:US20180316531A1

    公开(公告)日:2018-11-01

    申请号:US15961489

    申请日:2018-04-24

    Abstract: Adjacent channel leakage-power ratio (ACLR) can be reduced at a transmitter of a device. A modulated signal can be mapped into a plurality of tone sets in a frequency domain, wherein the plurality of tone sets include a first, a second, and a third set of tones. The first and the third set of tones can be converted in the frequency domain to a fourth and a fifth set of tones, respectively, in a time domain. A zero padding of one or more symbols associated with the fourth and the fifth set of tones can be performed to output a sixth and a seventh set of tones, respectively. The sixth and the seventh set of tones can be converted to an eighth and a ninth set of tones, respectively, in the frequency domain. The eighth and the ninth set of tones can be processed for transmitting to another wireless device.

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