Phase noise robust data modulation scheme

    公开(公告)号:US11265199B2

    公开(公告)日:2022-03-01

    申请号:US16901986

    申请日:2020-06-15

    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a transmitting device may identify one or more blocks of data for transmission to a receiving device. The transmitting device may map subsets of bits of the one or more blocks of data to a constellation of symbol points of a modulation order to obtain a set of symbols and may then transmit a signal including the set of symbols to a receiving device. In some systems, a receiving device may receive, from the transmitting device, the signal including the set of symbols associated with blocks of data. The receiving device may de-map the set of symbols according to a constellation of symbol points of a modulation order to obtain a plurality of sets of de-mapped data bits and decode a plurality of sets of de-mapped data bits to obtain the blocks of data.

    Automatic gain control for super-high order modulations

    公开(公告)号:US12256422B2

    公开(公告)日:2025-03-18

    申请号:US17745616

    申请日:2022-05-16

    Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for adapting or considering a receiver gain when using super-high order modulations for data transmissions. In one aspect, a network entity may transmit a tracking reference signal (TRS) in a first slot adjacent in time to a second slot allocated for one or more data transmissions associated with a high order modulation. A user equipment (UE) may receive the TRS and may adjust a receiver gain based on the TRS before receiving the one or more data transmissions associated with the high order modulation in the second slot. In another aspect, a UE may indicate (e.g., based on a receiver gain at the UE) a type of slot (e.g., shortened slot) or a maximum number of slots in which a network entity may transmit data transmissions with a high modulation order.

    Iterative phase-noise cancellation
    23.
    发明授权

    公开(公告)号:US12143258B2

    公开(公告)日:2024-11-12

    申请号:US17506616

    申请日:2021-10-20

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to a base station, a request for a data transmission that includes multiple subsets of data each associated with a different constellation granularity. In response to the request, the base station may encode the data transmission using multiple different constellation granularities and may transit the encoded data transmission to the UE. For example, the UE may receive the data transmission including a first subset of data that was encoded by the base station using a first constellation granularity and a second subset of data that was encoded by the base station using a second constellation granularity. The UE may then iteratively estimate phase-noises associated with respective subsets of data and perform phase-noise correction operations on the entire data transmission based on the estimated phase-noises.

    TECHNIQUES FOR CONTINUOUS BEAM SCANNING FOR INTEGRATED LENS ANTENNAS

    公开(公告)号:US20240305008A1

    公开(公告)日:2024-09-12

    申请号:US18181287

    申请日:2023-03-09

    Inventor: Ronen Shaked

    CPC classification number: H01Q15/02 H04B7/0695 H04B7/088

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a first measurement report to a network entity which includes a set of beam measurements corresponding to a set of beams of a beam codebook. The network entity may then perform a set of weighted measurement calculations to determine a first serving beam that is different from each of the set of beams of the existing beam codebook. The network entity may then transmit a first serving beam indication that instructs the UE to begin monitoring the first serving beam. The UE may then transmit a second measurement report to the network entity that includes a second set of beam measurements which includes measurements for the first serving beam. The network entity and the UE may then communicate via the first serving beam based on the measurements for the first serving beam satisfying a threshold.

    OVER THE AIR FREQUENCY DEPENDENT RESIDUAL SIDE BAND ESTIMATION

    公开(公告)号:US20240154756A1

    公开(公告)日:2024-05-09

    申请号:US18052858

    申请日:2022-11-04

    CPC classification number: H04L5/0051 H04L25/0256 H04W24/10

    Abstract: Aspects of the present disclosure also allow for a more efficient way to correct or compensate for IQ mismatch in an environment with multiple TX antennas and multiple IQ modulators. In these environments, a received signal is a beamformed signal which is a combination of all TX antennas passing through different channels and may be received in a single RX antenna. Specifically, the RX side may estimate the composite FDRSB for the TXs and signal back a composite FDRSB to allow the TX to use a single filter to compensate for the composite FDRSB. The composite FDRSB may correspond to the equivalent FDRSB received as a sum of the individual FDRSBS of each of the IQ modulators and IQ antennas at a base station.

    Frequency dependent residual side band correction

    公开(公告)号:US11924009B1

    公开(公告)日:2024-03-05

    申请号:US17930403

    申请日:2022-09-07

    CPC classification number: H04L27/04 H04L5/0098 H04L25/03006 H04L2025/03815

    Abstract: A network node may transmit a training signal for a UE on a plurality of sub-carriers, the training signal transmitted via multiple IQ modulators and multiple RF antenna panels and receive a feedback associated with an FDRSB based on the training signal. The network node may apply an FDRSB correction filter to at least one signal to be transmitted to the UE, and the FDRSB correction filter may be based on the feedback received from the UE. The training signal may include at least one tone transmitted on a first subset of sub-carriers of the plurality of sub-carriers, the first subset of sub-carriers being configured symmetric to a second subset of sub-carriers with respect to a center frequency of the plurality of sub-carriers, and the second subset of sub-carriers being free of the at least one tone of the training signal.

    AUTOMATIC GAIN CONTROL FOR SUPER-HIGH ORDER MODULATIONS

    公开(公告)号:US20230371059A1

    公开(公告)日:2023-11-16

    申请号:US17745616

    申请日:2022-05-16

    CPC classification number: H04W72/1231 H04W52/52 H04W72/1278 H04L5/0051

    Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for adapting or considering a receiver gain when using super-high order modulations for data transmissions. In one aspect, a network entity may transmit a tracking reference signal (TRS) in a first slot adjacent in time to a second slot allocated for one or more data transmissions associated with a high order modulation. A user equipment (UE) may receive the TRS and may adjust a receiver gain based on the TRS before receiving the one or more data transmissions associated with the high order modulation in the second slot. In another aspect, a UE may indicate (e.g., based on a receiver gain at the UE) a type of slot (e.g., shortened slot) or a maximum number of slots in which a network entity may transmit data transmissions with a high modulation order.

    CHANNEL STATE FEEDBACK USING DEMODULATION REFERENCE SIGNALS

    公开(公告)号:US20230291612A1

    公开(公告)日:2023-09-14

    申请号:US17690315

    申请日:2022-03-09

    CPC classification number: H04L25/0228 H04L5/0048 H04B7/0626

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may monitor for a demodulation reference signal (DMRS) according to a default precoder, where the DMRS is associated with channel state feedback (CSF) information. The UE may perform a channel estimation based on the DMRS, and transmit an uplink message indicating one or more candidate precoders, where the one or more candidate precoders are selected based on the channel estimation. The UE may receive a downlink message indicating a precoder of the one or more candidate precoders based on transmitting the uplink message. The UE may then communicate with a network entity in accordance with the indicated precoder based on receiving the downlink message.

    CHANNEL STATE FEEDBACK EXTENSIONS FOR MULTI-LEVEL CODING

    公开(公告)号:US20220255778A1

    公开(公告)日:2022-08-11

    申请号:US17169280

    申请日:2021-02-05

    Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit signaling that configures a wireless device to use a multi-level coding (MLC) procedure to communicate with a base station. Based on receiving the signaling, the wireless device may select a channel quality indicator (CQI) index from a set of CQI indices that are associated with an MLC procedure. In some examples, the wireless device selects the CQI index from a set of CQI indices that includes both bit-interleaved coded modulation (BICM)-based and MLC-based CQI indices. In other examples, the wireless device selects the CQI index from a set of CQI indices that includes solely MLC-based CQI indices. The wireless device may transmit the selected CQI index to the base station. And the base station may select a modulation and coding scheme for subsequent transmissions to the wireless device based on the received CQI index.

Patent Agency Ranking