Signaling for enabling full-duplex communications in the presence of a timing advance

    公开(公告)号:US12177800B2

    公开(公告)日:2024-12-24

    申请号:US17851410

    申请日:2022-06-28

    Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a user equipment (UE) may receive a control signal allocating downlink resources and uplink resources, where the uplink resources puncture the downlink resources and are allocated for transmitting feedback control information. The UE may generate an uplink signal containing the feedback control information and one or more cancelation tones for canceling interference between a downlink signal and the uplink signal in accordance with a timing advance value. Additionally, or alternatively, the UE may generate an uplink signal including the feedback control information, where the uplink signal contains uplink symbols and cyclic extensions appended to the uplink symbols, and the cyclic extensions may be based on the timing advance value. The UE may transmit, while receiving downlink data on the downlink resources, the uplink signal including the feedback control information using the set of uplink resources.

    RATELESS POLAR CODES
    4.
    发明公开

    公开(公告)号:US20240313887A1

    公开(公告)日:2024-09-19

    申请号:US18183835

    申请日:2023-03-14

    CPC classification number: H04L1/0057

    Abstract: Methods, systems, and devices for wireless communication are described. A first wireless device may transmit, to a second wireless device, a codeword corresponding to a set of information bits encoded using a polar code, and the second wireless device may obtain a first set of log likelihood ratios (LLRs) based on performing a first decoding operation on the codeword. In cases that the first wireless device identifies a failure of the second wireless device to decode one or more of the information bits, the first wireless device may retransmit a subset of the information bits to the second wireless device independently of the polar code. The second wireless device may then attempt to decode the codeword a second time using the polar code and based on a combination of a first set of LLRs and a second set of LLRs corresponding to the subset of the information bits.

    Envelope tracking for wideband signals using filter bank processing

    公开(公告)号:US12069594B2

    公开(公告)日:2024-08-20

    申请号:US17453800

    申请日:2021-11-05

    CPC classification number: H04W52/52 H04W24/08

    Abstract: Certain aspects of the present disclosure provide techniques for envelope tracking schemes for a node in a wireless communication network. One aspect provides a method for wireless communication by a transmitter device. The method generally includes: combining envelopes associated with subbands of an input signal to be amplified for transmission based on a combination function; amplifying, via an amplifier, the input signal to generate a transmission signal, the input signal being amplified based on a combined envelope signal, representing the combination of the envelopes, received at a supply input of the amplifier; and transmitting the transmission signal to a receiver device.

    SCHEMES FOR CHANNEL AWARE TONE RESERVATION CONTENTION WITH REFERENCE SIGNALS

    公开(公告)号:US20240260085A1

    公开(公告)日:2024-08-01

    申请号:US18161803

    申请日:2023-01-30

    CPC classification number: H04W74/0816

    Abstract: Methods, systems, and devices for wireless communications are described. The techniques described herein relate to schemes for channel aware tone reservation (CATR) contention with a reference signal. A network entity determines, based on a reference signal pattern, a reference signal resource element within a first slot of a channel for transmitting a reference signal. The network entity determines, based on a CATR pattern, an initial CATR resource element. The CATR pattern is based on a channel frequency response of the channel. The network entity determines a CATR resource element based on the reference signal resource element, the initial CATR resource element, and a resource element scheme of multiple resource element schemes. The multiple resource element schemes resolve a contention between an overlap of the reference signal resource element and the initial CATR resource element. The network entity transmits an indication of the CATR resource element to a user equipment.

    Signaling for a dynamic demodulation reference signal mode

    公开(公告)号:US11973709B2

    公开(公告)日:2024-04-30

    申请号:US17332332

    申请日:2021-05-27

    CPC classification number: H04L5/0048 H04W72/51

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, an indication to operate in a dynamic demodulation reference signal (DMRS) mode, wherein the dynamic DMRS mode includes a use of dynamic DMRS configurations without an explicit indication of DMRS resource locations for the dynamic DMRS configurations. The UE may receive, from the base station based at least in part on receiving the indication to operate in the dynamic DMRS mode, a DMRS using a first dynamic DMRS configuration. Numerous other aspects are described.

    Over the air reliable digital pre-distortion

    公开(公告)号:US11888670B1

    公开(公告)日:2024-01-30

    申请号:US17869774

    申请日:2022-07-20

    CPC classification number: H04L27/2623 H04B1/0475 H04B2001/0425

    Abstract: Methods, systems, and devices for wireless communications are described. Techniques provide for reliable signal processing and amplification of downlink signals. A network entity may apply a digital pre-distortion (DPD) process to a signal for transmission to a user equipment (UE) and may apply a crest factor reduction (CFR) process to the output of the DPD process. The output of the CFR process may be amplified by a power amplifier and transmitted via a downlink transmission to the UE. The CFR process limits the peak power of the signal provided to the power amplifier (e.g., to a configured level), thereby reducing the peak to average power ratio (PAPR) of the signal provided to the power amplifier. The DPD process may compensate for non-linearities of the power amplifier. A training procedure for the DPD process may account for the CFR process applied after the DPD process.

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