Determination of demodulation reference signal and phase tracking reference signal parameters

    公开(公告)号:US10771221B2

    公开(公告)日:2020-09-08

    申请号:US16837423

    申请日:2020-04-01

    Abstract: Methods, systems, and devices for wireless communications are described. One method may include receiving radio resource control signaling configured with a first set of demodulation reference signal parameters for transmission of an uplink data channel of a type, receiving downlink control information of a format to activate the transmission of the uplink data channel, identifying a second set of demodulation reference signal parameters for transmission of the uplink data channel of the type based on the received downlink control information, and activating the transmission of the uplink data channel using the first and second set of demodulation reference signal parameters.

    FEEDBACK TRANSMISSIONS USING UPLINK SHARED CHANNEL

    公开(公告)号:US20200275476A1

    公开(公告)日:2020-08-27

    申请号:US16800644

    申请日:2020-02-25

    Abstract: Methods, systems, and devices for wireless communications provide for feedback transmissions using an uplink shared channel. A user equipment (UE) may transmit feedback to a base station using physical uplink shared channel (PUSCH) resources. The base station may transmit an uplink grant to the UE indicating a set of resources for uplink data transmissions. The base station may subsequently transmit a downlink grant for the UE. Based on monitoring resources indicated by the downlink grant, the UE may generate feedback indicating the success of receiving or decoding the PDSCH transmission. The UE may transmit the feedback to the base station on the PUSCH resources. In some cases, the UE may transmit both the feedback for the PDSCH transmission received after the uplink grant and for a second PDSCH transmission received prior to the uplink grant using PUSCH resources.

    SEARCH SPACE ACTIVATION FOR CHANNEL MONITORING
    275.
    发明申请

    公开(公告)号:US20200221431A1

    公开(公告)日:2020-07-09

    申请号:US16734250

    申请日:2020-01-03

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment may be configured to monitor a first set of decoding candidates within a first search space for receiving a physical downlink control channel message. A base station may identify downlink data for the user equipment and may transmit a signal to the user equipment. The user equipment may receive the signal within the first search space. In some cases, the signal may include a command for activating a second search space. The user equipment may monitor a second set of decoding candidates within the second search space based on receiving the signal. The user equipment communicate, with the base station, based on monitoring the first set of decoding candidates within the first search space and the second set of decoding candidates within the second search space.

    SIMULTANEOUS UPLINK TRANSMISSIONS USING SPATIAL MULTIPLEXING

    公开(公告)号:US20190280757A1

    公开(公告)日:2019-09-12

    申请号:US16293986

    申请日:2019-03-06

    Inventor: Wei Yang Yi Huang

    Abstract: A spatial multiplexing configuration may enable a user equipment (UE) to spatially multiplex two or more uplink channels of different types for simultaneous transmission. For example, a UE may receive an indication of a spatial multiplexing configuration from a base station. The UE may identify two or more uplink channels for simultaneous transmission on a same component carrier, where each uplink channel may be a different type. In such cases, the UE may spatially multiplex the two or more uplink channels on a same set of time/frequency resources on the component carrier in accordance with the spatial multiplexing configuration. The spatially multiplexed uplink channels may then be simultaneously transmitted by the UE on the set of resources, where the spatially multiplexed uplink channels may be simultaneously sent to the same base station or to different base stations. Additionally, different spatial parameters may be applied to each uplink channel.

    TRANSMIT POWER CONTROL COMMAND HANDLING ACROSS MULTIPLE DOWNLINK CONTROL INFORMATION

    公开(公告)号:US20190230597A1

    公开(公告)日:2019-07-25

    申请号:US16253211

    申请日:2019-01-21

    Abstract: A user equipment (UE) may apply transmit power control (TPC) commands and transmit uplink information based on received downlink control information (DCI). A UE may receive multiple DCI messages including multiple TPC commands for an uplink transmission. The power level for the uplink transmission may be adjusted based on the combination of TPC commands. For example, the TPC commands may be considered together (e.g., added, averaged, etc.), the latest TPC command may be used, etc. In some cases, a change in TPC command for an uplink transmission (e.g., from a previous TPC command for the uplink transmission indicated via other DCI) may indicate a change in one or more transmission attributes for the uplink transmission. In some cases, a UE may receive a grant for a prioritized transmission, resulting in discontinuous transmission (DTX) of a previous transmission, which may result in TPC modification by the UE.

    Dynamic triggering and skipping of channel state feedback (CSF)

    公开(公告)号:US12284542B2

    公开(公告)日:2025-04-22

    申请号:US17697407

    申请日:2022-03-17

    Abstract: Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for dynamically triggering or skipping channel state feedback (CSF). A method that may be performed by a user equipment (UE) includes receiving, from a network entity, a configuration indicating CSF reporting occasions, receiving a downlink (DL) transmission, and transmitting CSF on only some CSF reporting occasions after receiving the DL transmission when one or more trigger conditions are met. According to certain aspects, when one or more trigger conditions are not met, the UE skips at least some CSF reporting occasions.

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