FEEDBACK FOR VISIBLE LIGHT COMMUNICATION TRANSMISSIONS

    公开(公告)号:US20250070874A1

    公开(公告)日:2025-02-27

    申请号:US18684085

    申请日:2021-10-26

    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, a downlink visible light communication (VLC) transmission. The UE may receive, from the base station, a downlink New Radio (NR) radio frequency (RF)-based communication (RFC) transmission, wherein a frame structure associated with the downlink VLC transmission is asynchronous with a frame structure associated with the downlink NR RFC transmission. The UE may transmit, to the base station via an uplink RF transmission based at least in part on a lack of support for an uplink VLC transmission at the UE, acknowledgement or negative acknowledgement (ACK/NACK) feedback associated with one or more of the downlink VLC transmission or the downlink NR RFC transmission. Numerous other aspects are described.

    FEEDBACK FOR TYPE II CHANNEL STATE INFORMATION

    公开(公告)号:US20250056593A1

    公开(公告)日:2025-02-13

    申请号:US18780063

    申请日:2024-07-22

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may perform channel state information (CSI) measurements on one or more reference signal transmissions from a base station; determine, based at least in part on the CSI measurements, a set of non-zero linear combination complex coefficients for weighting and co-phasing for a linear combination of a plurality of frequency domain basis vectors and a plurality of spatial domain basis vectors; and transmit a CSI feedback, wherein a first part of the CSI feedback includes at least an indication of a number of the set of non-zero linear combination complex coefficients with regard to all layers of a communication link between the UE and the base station. Numerous other aspects are provided.

    METHOD AND APPARATUS FOR SYNCHRONIZATION FOR RACH AND SDT IN SSB-LESS DL BWP

    公开(公告)号:US20240406896A1

    公开(公告)日:2024-12-05

    申请号:US18697414

    申请日:2022-12-02

    Abstract: Methods, apparatuses, and computer-readable medium for synchronization for RACH and SDT are provided. An example method may include receiving a configuration for a first DL and UL BWP pair including information indicative of at least one of a CORESET, a SS set, and a set of UL resource occasions for a RA procedure or a SDT procedure. The example method may further include initiating at least one of the RA procedure or the SDT procedure in the first DL and UL BWP pair. The example method may further include performing time or frequency synchronization during the RA procedure or the SDT procedure, using a SSB of a serving cell configured in a second DL BWP or a DL reference signal of the serving cell configured in the second DL BWP.

    CHANNEL ESTIMATION BASED BEAM DETERMINATION IN HOLOGRAPHIC MULTIPLE-IN MULTIPLE-OUT SYSTEM

    公开(公告)号:US20240405811A1

    公开(公告)日:2024-12-05

    申请号:US18560864

    申请日:2021-07-05

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a first indication that the UE is within a distance threshold (e.g., in the near field) of multiple-in multiple-out (MIMO) communications from the base station. The UE may communicate with the base station via signaling including a second indication of antenna panel information of at least one of the UE or the base station, the communication based on the UE being within the distance threshold. The UE may receive, from the base station, a first beamformed signal on one or more first beams within the distance threshold, and the CE may receive, from the base station, one or more second beamformed signals on a second beam within the distance threshold, the second beam based on a channel response matrix that is estimated from the second indication and the first beamformed signal.

    METHOD AND APPARATUS FOR POSITION ESTIMATION USING MOBILE ANCHOR

    公开(公告)号:US20240377497A1

    公开(公告)日:2024-11-14

    申请号:US18291898

    申请日:2021-09-21

    Abstract: The position of a target user equipment (UE) is determined using a set of Reference Signal Time Difference (RSTD) measurements that includes at least three RSTD measurements generated at different times by the target UE. Each RSTD measurement is produced based on positioning reference signals (PRS) transmitted by a stationary anchor entity and corresponding PRS transmitted by a moving mobile anchor entity. At least two anchor-to-anchor receive-transmit (RxTx) time difference measurements are generated by an anchor entity, wherein each anchor-to-anchor RxTx time difference measurement is associated with the RSTD measurements, and there are fewer anchor-to-anchor RxTx time difference measurements than RSTD measurements. The position estimate of the target UE is determined based on the set of RSTD measurements and the at least two anchor-to-anchor RxTx time difference measurements.

    CONFIGURING PARAMETERS OF A RECONFIGURABLE SURFACE

    公开(公告)号:US20240364387A1

    公开(公告)日:2024-10-31

    申请号:US18291141

    申请日:2021-09-17

    CPC classification number: H04B7/04013 H04L5/0048 H04W72/20

    Abstract: Methods, systems, and devices for wireless communications are described. For instance, a base station may transmit, to a user equipment (UE), control signaling indicating a configuration for transmitting a reference signal for reconfigurable surface configuration. The base station may receive, via a reconfigurable surface, the reference signal based on transmitting the control signaling. For instance, the reconfigurable surface may reflect the reference signal to the base station using a first configuration of the reconfigurable surface. The base station may transmit, to a controller of the reconfigurable surface, a set of parameters for configuring the reconfigurable surface to a second configuration for communications between the base station and the UE based on receiving the reference signal via the reconfigurable surface.

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