Phase tracking reference signal design for single-carrier waveform with multiple data layers

    公开(公告)号:US12149464B2

    公开(公告)日:2024-11-19

    申请号:US17305426

    申请日:2021-07-07

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, information indicating at least one of a power amplifier sharing configuration or a phase noise sharing configuration for a plurality of layers of a single-carrier communication. The UE may receive, from the base station, a phase tracking reference signal (PTRS) configuration for the plurality of layers based at least in part on at least one of the power amplifier sharing configuration or the phase noise sharing configuration. The UE may perform the single-carrier communication in accordance with the PTRS configuration.

    Uplink reference signal spatial relation identification techniques

    公开(公告)号:US12081476B2

    公开(公告)日:2024-09-03

    申请号:US17893483

    申请日:2022-08-23

    CPC classification number: H04L5/0048 H04W76/10

    Abstract: Methods, systems, and devices for wireless communications are described in which spatial relations for one or more uplink reference signal transmissions, such as sounding reference signal (SRS) transmissions, may be configured and a particular spatial relation indicated in a medium access control (MAC) control element (CE). A base station may configure a pool of available spatial relations for use in SRS transmissions, and the MAC-CE may indicate which spatial relation of the set of available spatial relations is to be used. In other cases, the MAC-CE may provide all of the spatial relation information for an associated SRS transmission. The UE, responsive to receiving the MAC-CE, may transmit a SRS to the base station using the indicated spatial relation.

    Indication to update uplink and downlink beams

    公开(公告)号:US12063085B2

    公开(公告)日:2024-08-13

    申请号:US17119710

    申请日:2020-12-11

    CPC classification number: H04B7/0617 H04L5/0048 H04W72/20 H04W72/046

    Abstract: Apparatus, methods, processing systems, and computer readable mediums enable L1 (physical layer) and L2 (medium access control (MAC) layer) inter-cell mobility. More specifically, rules and operations performed during L1/L2 based cell handover operations. A user equipment (UE) is configured to receive, from a network entity of a source cell via at least one of L1 or L2 signaling, a handover command for the UE to handover from the source cell to a target cell. The UE determines at least one transient period during which the UE is served by both the source cell and the target cell, and performs the handover while communicating with the source cell and target cell during the transient period.

    MACHINE LEARNING BASED TIMING ADVANCE UPDATES
    256.
    发明公开

    公开(公告)号:US20240236894A9

    公开(公告)日:2024-07-11

    申请号:US18048728

    申请日:2022-10-21

    CPC classification number: H04W56/0045 H04W24/08

    Abstract: Methods, systems, and devices for wireless communications at a user equipment (UE) are described. A UE may identify one or more measurement parameters to use for input in a machine learning (ML) model. In some cases, the measurement parameters may include reference signal received power measurements or a past set of timing advance (TA) values for a specific node. The UE may predict the TA based on inputting the measurement parameters into the ML model. The UE may transmit an uplink communication from the UE to a network entity using the TA predicted from the ML model. In some examples, the UE may transmit a capability report to indicate that the UE may support autonomous update of the TA based on the predictions of the TA values produced from the ML model.

    Beamforming in multicast communications

    公开(公告)号:US12022476B2

    公开(公告)日:2024-06-25

    申请号:US17098653

    申请日:2020-11-16

    Abstract: This disclosure provides methods, devices and systems for beamforming in wireless communications. Some implementations more specifically relate to beamforming configurations for multicast communications. A transmitting device may transmit multicast data to multiple receiving devices, concurrently, via a physical downlink shared channel (PDSCH). The PDSCH may be preceded by a physical downlink control channel (PDCCH). The PDCCH may provide scheduling information for the PDSCH, including a multicast beam associated with the PDSCH and a timing offset or delay between the PDCCH and the PDSCH. A receiving device may determine that the PDSCH contains multicast data based on an indication in the PDCCH. To receive the PDSCH, each receiving device may tune its antennas in a direction of the scheduled multicast beam or a default beam based on the delay between the PDCCH and the PDSCH.

    Multiple TRP PDSCH scheduling using DCI without TCI field

    公开(公告)号:US12016019B2

    公开(公告)日:2024-06-18

    申请号:US17450274

    申请日:2021-10-07

    CPC classification number: H04W72/1273 H04W72/02 H04W72/044 H04W72/23

    Abstract: Aspects presented herein may enable a UE and/or a base station to identify a TCI state for each of the multiple TRPs when the DCI does not include a TCI state. For examples, aspects presented herein may enable the UE and/or the base station to identify TCI states from different TRPs based at least in part on one of a default beam rule, the TCI state used for transmitting PDCCH, or the TCI state used for transmitting previous/last PDSCH. In one aspect, an apparatus receives a single DCI from one TRP of a base station or multiple DCIs from multiple TRPs of the base station that do not contain a TCI state. Then the apparatus receive PDSCH from the multiple TRPs of the base station based on a TCI state in which the PDSCH is to be transmitted from each of the multiple TRPs of the base station.

    Prioritizations during beam failure recovery

    公开(公告)号:US11950113B2

    公开(公告)日:2024-04-02

    申请号:US17453938

    申请日:2021-11-08

    CPC classification number: H04W24/04

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine, during a beam failure recovery period, that a configured control resource set at least partially overlaps with a beam failure recovery control resource set. The UE may configure, based at least in part on the at least partial overlap, a receive beam to receive the beam failure recovery control resource set. The UE may receive a control signal over the beam failure recovery control resource set during the beam failure recovery period.

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