DEMODULATION REFERENCE SIGNAL (DMRS) AND SOUNDING REFERENCE SIGNAL (SRS) BUNDLING UNDER UPLINK TIMING ADVANCE (TA)

    公开(公告)号:US20210337570A1

    公开(公告)日:2021-10-28

    申请号:US17301972

    申请日:2021-04-20

    Abstract: Wireless communication devices, systems, and methods related to bundling of uplink communication signals under timing advance (TA) conditions are provided. For example, a method of wireless communication performed by a user equipment can include receiving, from a base station, a timing advance (TA), wherein the TA is scheduled to be implemented by the user equipment at a first time, the first time being after a start of a first uplink communication of a group of bundled uplink communications scheduled with phase coherence and before a start of a second uplink communication of the group of bundled uplink communications; determining whether to implement the TA at the first time or a second time, the second time being after transmission of the second uplink communication; and implementing the TA based on the determining

    RESOURCE MAPPING FOR RANDOM ACCESS REPETITIONS USING A SAME SPATIAL FILTER

    公开(公告)号:US20250119953A1

    公开(公告)日:2025-04-10

    申请号:US18836173

    申请日:2022-04-06

    Abstract: The described techniques enable repeated physical random access channel (PRACH) preamble transmissions across multiple random access occasions (ROs) using a same spatial filter. A user equipment (UE) may transmit a PRACH preamble across multiple ROs, where each RO is associated with a same synchronization signal block (SSB) or channel state information reference signal (CSI-RS). In such cases, the PRACH repetitions may be transmitted in ROs in accordance with a mapping rule: first, in increasing order of frequency resource index; second, in increasing order of a time resource index; third, in increasing order of PRACH slot indices; and fourth, in increasing order of PRACH association period indices. Additionally, or alternatively, the PRACH repetitions may be transmitted in ROs in accordance with a mapping rule: first, in increasing order of time resource index; second, in increasing order of PRACH slot indices; and third, in increasing order of PRACH association period indices.

    TIME-DOMAIN COMPRESSION CONSIDERATIONS FOR ACCUMULATED CHANNEL STATE INFORMATION REPORTS

    公开(公告)号:US20250030469A1

    公开(公告)日:2025-01-23

    申请号:US18708449

    申请日:2022-01-10

    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a plurality of downlink transmissions from a base station. The UE may identify a channel state information (CSI) trigger event. The UE may transmit an accumulated CSI report comprising CSI for each downlink transmission of the plurality of downlink transmissions in accordance with the CSI trigger event, wherein a quantization level of the CSI for each downlink transmission in the accumulated CSI report is based at least in part on a time between the downlink transmission and the CSI trigger event.

    FREQUENCY-SELECTIVE UPLINK PRECODING
    49.
    发明公开

    公开(公告)号:US20240291529A1

    公开(公告)日:2024-08-29

    申请号:US18572684

    申请日:2021-08-27

    CPC classification number: H04B7/0456 H04L5/0053

    Abstract: Methods, systems, and devices for wireless communication are described. In some systems, a base station may transmit subband uplink precoding information to a user equipment (UE). The base station may transmit a first control message to the UE to indicate a set of downlink resources for a downlink message associated with the subband uplink precoding information for the UE. The base station may transmit a second control message to the UE to indicate a set of uplink resources for an uplink message. The base station may transmit the downlink message to the UE via the set of downlink resources indicated by the first control message. The downlink message, the second control message, or both may include the subband uplink precoding information for the UE. The UE may transmit an uplink message to the base station via the set of uplink resources using the subband uplink precoding information.

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