UPLINK (UL) FREQUENCY-DIVISION DUPLEX (FDD) SUBFRAME

    公开(公告)号:US20190044691A1

    公开(公告)日:2019-02-07

    申请号:US16155777

    申请日:2018-10-09

    Abstract: Various aspects provide a subframe for uplink (UL) communication in a frequency-division duplex (FDD) configuration. Control information in the frequency range of the UL communication may include channel quality indicator (CQI) and acknowledgement (ACK) information. The CQI information may be provided prior to a demodulation reference signal (DMRS). The ACK information may be provided subsequent to another DMRS. The CQI information may be time-division multiplexed in a common frequency range as the ACK information. A sounding reference signal (SRS) may be provided as an initial symbol of the subframe. Some CQI information may be provided in two or more separate portions that are each prior to a separate DMRS. Some ACK information may be provided in two or more separate portions that are each subsequent to another separate DMRS.

    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).

    COMMUNICATION TECHNIQUES INVOLVING POLAR CODEWORDS WITH REDUCED REPETITION

    公开(公告)号:US20180375612A1

    公开(公告)日:2018-12-27

    申请号:US16017233

    申请日:2018-06-25

    Abstract: Certain aspects of the present disclosure provide techniques for an improved encoder for reducing repetition in polar codewords. An apparatus for wireless communication is provided. The apparatus includes at least one processor. The at least one processor is coupled with a memory. The at least one processor includes at least one encoder circuit configured to encode a set of information bits based on a cyclic redundancy check (CRC)-aided polar code to produce a codeword including polar encoded information bits and CRC bits. The at least one encoder circuit is configured to place one or more of the CRC bits at a start of the codeword and to set a value of the one or more CRC bits to a non-zero value. The apparatus includes a transmitter configured to transmit the codeword in accordance with a wireless technology across a channel via one or more antenna elements situated proximate the transmitter.

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