Autonomous switching between single frequency network (SFN) and non-SFN scheme

    公开(公告)号:US12224815B2

    公开(公告)日:2025-02-11

    申请号:US17481065

    申请日:2021-09-21

    Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) may support communications with a set of transmission/reception points (TRPs). The UE may receive one or more signals from at least one TRP of the set of TRPs. The one or more signals may indicate a condition corresponding to the UE for the multi-TRP communications. The UE may determine the condition of the UE based on the one or more signals. The UE may communicate with one or more TRPs of the set of TRPs based on the one or more signals. For example, the UE may communicate with the one or more TRPs according to a multi-TRP communications configuration determined based on the condition of the UE.

    Model-based channel state information

    公开(公告)号:US12206611B2

    公开(公告)日:2025-01-21

    申请号:US17654381

    申请日:2022-03-10

    Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for tracking channel variations via a model-based representation of the channel. A first network entity may receive from a second network entity or transmit to the second network entity, a model configuration indicative of a model condition of a channel between the first network entity and the second network entity. The model configuration may be associated with one or more initial parameters. The first network entity may receive a reference signal from the second network entity to measure a condition of the channel between the first network entity and the second network entity, and transmit, to the second network entity, one or more updated parameters for the model configuration based on a measurement of the condition of the channel in comparison to the model condition of the channel based on the model configuration.

    Multi-beam CSI feedback
    3.
    发明授权

    公开(公告)号:US12184582B2

    公开(公告)日:2024-12-31

    申请号:US18477322

    申请日:2023-09-28

    Abstract: In multi-beam communication, the UE may assist in the scheduling of beams utilized during the multi-beam communication by improving the manner in which the quality of the beam is reported to the network. The apparatus may measure a signal received from a base station on at least one beam. The apparatus may detect a triggering event for providing CSI for the at least one beam. The apparatus may transmit an uplink transmission comprising a CSI report in response to detecting the triggering event. The apparatus may receive an uplink request from a UE for providing CSI for at least one beam. The apparatus may transmit an indication scheduling a CSI report in response to the uplink request. The apparatus may receive an uplink transmission from the UE comprising the CSI report for the at least one beam.

    Sidelink beam failure detection
    4.
    发明授权

    公开(公告)号:US12160856B2

    公开(公告)日:2024-12-03

    申请号:US18499335

    申请日:2023-11-01

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first node may transmit, to a second node on a beamformed link from the first node to the second node, a first signal, wherein the first node and the second node are associated with common timing; determine whether a second signal, based at least in part on the first signal, is received on a beamformed link from the second node to the first node; and transmit a third signal based at least in part on receiving the second signal or perform a sidelink beam failure recovery procedure based at least in part on determining that the second signal is not received. Numerous other aspects are provided.

    MULTIPLE TRANSMISSION AND RECEPTION POINT COHERENT JOINT TRANSMISSION CHANNEL STATE INFORMATION FEEDBACK

    公开(公告)号:US20240305343A1

    公开(公告)日:2024-09-12

    申请号:US18180729

    申请日:2023-03-08

    CPC classification number: H04B7/0626 H04L5/0048 H04L5/006

    Abstract: An example wireless communication device includes one or more processors, one or more transceivers, and memory. The one or more processors are configured to cause the wireless communication device to receive a respective reference signal from each of a plurality of transmission reception points (TRPs). The one or more processors are configured to cause the wireless communication device to transmit a first message comprising a recommended set of TRPs from among the plurality of TRPs for use in coherent joint transmission (CJT) based on the respective reference signals. The one or more processors are configured to transmit a second message comprising a channel state information (CSI) report based on a transmission hypothesis. The transmission hypothesis is based on the recommended set of TRPs or an override set of TRPs from among the plurality of TRPs for use in CJT.

    USER EQUIPMENT-ASSISTED PHASE RECOVERY FOR COHERENT JOINT TRANSMISSION

    公开(公告)号:US20240283522A1

    公开(公告)日:2024-08-22

    申请号:US18169940

    申请日:2023-02-16

    CPC classification number: H04B7/0848 H04L5/0048 H04W72/1268 H04W76/15

    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support UE-assisted phase recovery for CJT. In a first aspect, a method of wireless communication includes transmitting an indication of a phase alignment associated with a first network node and a second network node at a first user equipment (UE), receiving, from the first network node, a first CJT component after transmitting the indication of the phase alignment, and receiving, from the second network node, a second CJT component after transmitting the indication of the phase alignment, wherein a first phase of the first CJT component is aligned with a second phase of the second CJT component. Other aspects and features are also claimed and described.

    Techniques for unified physical downlink control channel configurations

    公开(公告)号:US12069681B2

    公开(公告)日:2024-08-20

    申请号:US17445412

    申请日:2021-08-19

    CPC classification number: H04W72/23 H04L1/08 H04L5/0053

    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, configuration information for a physical downlink control channel (PDCCH) associated with single frequency network (SFN) transmissions and PDCCH repetitions, wherein the configuration information indicates a first control resource set (CORESET) and a second CORESET, wherein the first CORESET is associated with a first transmission configuration indicator (TCI) state and the second CORESET is associated with a second TCI state. The UE may receive, from the base station and based at least in part on the reception of the configuration information, at least one of one or more SFN PDCCH messages or one or more PDCCH repetitions. Numerous other aspects are described.

    Default beam identification and beam failure detection in cross carrier scheduling

    公开(公告)号:US12015999B2

    公开(公告)日:2024-06-18

    申请号:US17895851

    申请日:2022-08-25

    CPC classification number: H04W72/044 H04W24/10 H04W72/23

    Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit a first downlink grant (e.g., a PDCCH transmission) for a first data transmission (e.g., a PDSCH transmission) over a first component carrier; the first data transmission over a second component carrier; and a second downlink grant (e.g., another PDCCH transmission) for a second data transmission (e.g., another PDSCH transmission) over the second component carrier. A user equipment (UE) receives the first data transmission over a first beam and may use the first beam for receiving the second data transmission. Additionally or alternatively, the UE may receive a configuration message indicating a set of TCI states for downlink data transmissions to the UE; identify one or more reference signals monitor for beam failure detection (BFD), identify one or more BFD beams, monitor the identified one or more reference signals; and selectively trigger a beam failure reporting procedure.

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