UNIFIED TRANSMISSION CONFIGURATION INDICATION FOR MULTIPLE TRANSMISSION RECEPTION POINTS

    公开(公告)号:US20250055616A1

    公开(公告)日:2025-02-13

    申请号:US18721146

    申请日:2022-02-11

    Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive signaling identifying a configuration for the UE to communicate with a first transmission reception point (TRP) and a second transmission reception point. The UE may receive a single downlink control message that includes one or more transmission configuration indicators, the one or more transmission configuration indicators indicating a first transmission configuration indicator state for the first TRP and a second transmission configuration indicator state for the second transmission reception point. The UE may communicate with at least one of the first TRP or the second TRP according to the one or more transmission configuration indicators based on receiving the single downlink control message.

    REFERENCE SIGNAL COMMUNICATION IN THE PRESENCE OF UNIFIED TRANSMISSION CONFIGURATION INDICATOR STATES

    公开(公告)号:US20250038934A1

    公开(公告)日:2025-01-30

    申请号:US18715645

    申请日:2022-01-19

    Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) that has been configured with two transmission configuration indicator (TCI) states may determine which TCI state of the two the UE is to apply to reference signal resources. A base station may configure a set of TCI states and activate a subset of the TCI states, and may indicate one or two of the activated TCI states for communication on a channel for a time period. The base station may transmit an indication of which of the two TCI states the UE is to apply for reference signal resources. The UE may determine which of the two TCI states to use for reference signal resources based on one or more rules, which may be based on identifiers (e.g., based on comparing identifiers for reference signal resources, reference signal resource sets, or groups of reference signal resources).

    DETERMINING DEFAULT UNIFIED TRANSMISSION CONFIGURATION INDICATOR STATES

    公开(公告)号:US20240414735A1

    公开(公告)日:2024-12-12

    申请号:US18717964

    申请日:2022-03-02

    Abstract: Methods, systems, and devices for wireless communications are disclosed. A user equipment (UE) may receive control signaling scheduling downlink messages and indicating one or more transmission configuration indicator (TCI) states for reception of the one or more downlink messages during multiple transmission and reception point (mTRP) operation. The UE may identify that the downlink messages are scheduled for reception prior to an end of an offset window associated with processing the one or more TCI states. The UE may select one or more default unified TCI states to receive the downlink messages based on one or more conditions or parameters. The UE may receive the one or more downlink messages via the selected one or more default unified TCI states based on an arrival of the one or more downlink messages occurring prior to the end of the offset window.

    TIMING FOR APERIODIC SOUNDING REFERENCE SIGNAL (SRS) TRANSMISSIONS

    公开(公告)号:US20240324031A1

    公开(公告)日:2024-09-26

    申请号:US18574991

    申请日:2021-09-01

    CPC classification number: H04W76/10 H04B7/0626 H04L5/0051

    Abstract: This disclosure provides systems, methods and apparatus for aperiodic sounding reference signal (SRS) transmissions. In some aspects, a user equipment (UE) or a network entity may determine one or more time intervals for sounding reference signal (SRS) transmissions from a type of link, such as a link with another UE or a link with the network entity, used to communicate control signaling that triggers the SRS transmissions for the UE. A time interval in which the UE may not expect to transmit SRSs after receiving the control signaling, a time interval between the control signaling and the associated SRSs, a time interval between the control signaling and reception of one or more channel state information reference signals (CSI-RSs) used for precoding the SRSs, or any combination thereof, may be increased by an additional offset when the control signaling triggering the SRSs is received via the cooperative link.

    Antenna switching for reference signals

    公开(公告)号:US12068825B2

    公开(公告)日:2024-08-20

    申请号:US18002250

    申请日:2020-08-21

    CPC classification number: H04B7/0628

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to indicate to a base station a distribution of transmit antennas and receive antennas across a set of antenna panels, and the base station may configure resource sets for reference signal transmissions from the antenna panels based on the indicated distribution. In a first example, the UE may be configured to indicate a respective number of transmit antennas and receive antennas at each antenna panel. In a second example, the UE may be configured to indicate a sum of transmit antennas and a sum of receive antennas across all antenna panels, along with information on how the transmit antennas and receive antennas are distributed. Based on the indication, the base station may configure resource sets for reference signal transmission on sets of ports in resources of the resource sets.

    Precoder indication in downlink control information

    公开(公告)号:US12057913B2

    公开(公告)日:2024-08-06

    申请号:US17758926

    申请日:2020-01-31

    CPC classification number: H04B7/0639 H04B7/0404

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information that identifies a first precoder indicator selected from a set of precoder indicators and a second precoder indicator selected from a subset of the set of precoder indicators. The UE may communicate using multiple antenna panels based at least in part on the first precoder indicator and the second precoder indicator. Numerous other aspects are provided.

    TECHNIQUES FOR DETERMINING COMMUNICATION PARAMETERS FOR BEAM SWITCHING

    公开(公告)号:US20240204851A1

    公开(公告)日:2024-06-20

    申请号:US18554975

    申请日:2021-06-08

    CPC classification number: H04B7/0686 H04W72/046 H04W72/23

    Abstract: Techniques for wireless communications are described. A first device may communicate with a second device using a first beam. Based on communicating with the second device, the first device may indicate a reference signal associated with a different beam to indicate that the different beam associated with the reference signal is preferred for subsequent communications. The reporting device may switch to the different beam based on transmitting the indication of the reference signal. Based on switching to the different beam, the reporting device may determine a communication parameter based on the indicated reference signal and communicate with the scheduling device using the second beam based on the determined communication parameter.

    Pathloss reference signal update for multiple beams

    公开(公告)号:US11985604B2

    公开(公告)日:2024-05-14

    申请号:US17823436

    申请日:2022-08-30

    CPC classification number: H04W52/146 H04W52/54

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first control message indicating an uplink power control configuration for the UE. The uplink power control configuration may be associated with a power control identifier and a resource set identifier. The UE may receive a second control message that schedules an uplink message for the UE. The second control message may indicate the resource set identifier and the power control identifier for transmission of the uplink message. The UE may determine a transmit power for the uplink message based on a set of power control parameters, the set of power control parameters corresponding to the resource set identifier and the power control identifier. The UE may transmit the uplink message using a resource set associated with the resource set identifier and in accordance with the determined transmit power.

    SEPARATE HYBRID AUTOMATIC RECEIPT REQUEST ACKNOWLEDGEMENT FOR DOWNLINK TRANSMISSIONS

    公开(公告)号:US20240056262A1

    公开(公告)日:2024-02-15

    申请号:US18264721

    申请日:2021-04-16

    CPC classification number: H04L5/0053 H04W72/232 H04L5/001

    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support separate hybrid automatic receipt request (HARQ) acknowledgement by member user equipments (UEs) cooperating as a virtual UE for downlink transmissions. In a first aspect, a virtual UE may detect a downlink transmission, wherein the virtual UE includes two or more member UEs in communication with each other and configured to cooperate in communications with the serving base station. The virtual UE may generate one or more acknowledgement codebooks configured to indicate an acknowledgement status by the virtual UE. The virtual UE may attempt to decode the downlink transmission and report an acknowledgment indicator that reflects the result of the decoding. The acknowledgment indicator includes an acknowledgement state selected from an acknowledgement codebook associated with the member UE. Other aspects and features are also claimed and described.

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