AUTONOMOUS TIMING ADVANCE COMPENSATION FOR AIR-TO-GROUND COMMUNICATION

    公开(公告)号:US20240236897A9

    公开(公告)日:2024-07-11

    申请号:US18546556

    申请日:2021-04-19

    CPC classification number: H04W56/0045 H04B7/18502

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an aerial user equipment (UE) may measure a first offset associated with a downlink frame based at least in part on a time when a downlink signal is received from a terrestrial base station. The aerial UE may determine a second offset corresponding to a starting time for the downlink frame at the terrestrial base station. The aerial UE may transmit an uplink message in an uplink frame using a timing advance that is based at least in part on a value of the first offset and a value of the second offset relative to a starting time associated with a global navigation satellite system frame duration. Numerous other aspects are described.

    CHANNEL STATE FEEDBACK FOR RECEIVE ANTENNA SWITCHING

    公开(公告)号:US20230224134A1

    公开(公告)日:2023-07-13

    申请号:US17802409

    申请日:2020-04-29

    CPC classification number: H04L5/0057 H04L5/0048

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a base station may perform one or more operations for receive antenna switching. For example, a UE may receive a set of reference signals from a base station using one or more ports of the UE. Based on receiving the set of reference signals, the UE may generate channel state information (CSI) associated with a set of antenna ports. In some cases, the UE may generate CSI based on receiving a configuration indicating the set of antenna ports. The UE may transmit, to the base station, a CSI report including the CSI information associated with the set of antenna ports and an indication of the associated antenna ports. The base station may receive the CSI report and may communicate with the UE using a set of precoders associated with the set of indicated antennas ports.

    DEMODULATION REFERENCE SIGNALING FOR SELECTIVE CHANNELS

    公开(公告)号:US20230216636A1

    公开(公告)日:2023-07-06

    申请号:US17998251

    申请日:2020-06-17

    CPC classification number: H04L5/0051 H04L25/0224

    Abstract: Methods, systems, and devices for wireless communications are described. A communication device, which may be a user equipment (UE), may receive a message including an indication of a set of demodulation reference signal (DMRS) candidates for a data channel. The data channel may be a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in some examples. The UE may determine a set of parameters associated with the set of DMRS candidates based on the received message. The set of parameters may correspond to a radio frequency spectrum subband or a radio frequency spectrum band associated with the data channel. The UE may estimate one or more characteristics of the data channel using the set of parameters associated with the set of DMRS candidates to perform wireless communication (e.g., PDSCH reception, PUSCH transmission).

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