Methods and Apparatus for SRS Transmission and Signaling

    公开(公告)号:US20240031103A1

    公开(公告)日:2024-01-25

    申请号:US18481452

    申请日:2023-10-05

    CPC classification number: H04L5/0051 H04L5/0094

    Abstract: According to embodiments, a user equipment (UE) receives control information for a first sounding reference signal (SRS). The control information indicates at least a first frequency resource in a carrier, a frequency-domain shift parameter, a PF value, and a frequency-domain offset value. Based on the control information, the UE transmits the first SRS on a first partial frequency sounding resource within the first frequency resource in the carrier. A resource starting physical resource block (PRB) of the first frequency resource is in accordance with the frequency-domain shift parameter. A bandwidth of the first partial frequency sounding resource is based on at least the PF value and a bandwidth of the first frequency resource. A partial frequency sounding resource starting PRB of the first partial frequency sounding resource is based at least on the resource starting PRB of the first frequency resource and the frequency-domain offset value.

    METHODS AND APPARATUS FOR ENHANCEMENT OF SRS

    公开(公告)号:US20250167937A1

    公开(公告)日:2025-05-22

    申请号:US19029834

    申请日:2025-01-17

    Abstract: According to embodiments, a network device configures for a first sounding reference signal (SRS) resource. The first SRS resource is associated with a first transmission parameter defined on a set of values. The network device configures for the first SRS resource, hopping of the first transmission parameter on a first subset of values of the set of values. The network device receives first SRSs on the first SRS resource. The first SRSs have the first transmission parameter hopping according to the first subset of values.

    METHODS AND APPARATUS FOR SECONDARY CELL (SCELL) ACTIVATION AND DEACTIVATION

    公开(公告)号:US20240063991A1

    公开(公告)日:2024-02-22

    申请号:US18501639

    申请日:2023-11-03

    CPC classification number: H04L5/0098 H04L5/0048 H04L5/0057

    Abstract: According to embodiments, a UE receives a first signaling including a first configuration of a first CSI-RS for tracking for an SCell. The first configuration is associated with a first ID. The UE receives a second signaling including a second configuration of an RS for fast SCell activation of the SCell. The second configuration is associated with a second ID. The second configuration includes the first ID. The UE receives a MAC CE message including an SCell activation command indicating to activate the SCell and the second ID. The UE receives the RS for the fast SCell activation of the SCell. The RS includes a first burst of the first CSI-RS for tracking. The UE performs SCell activation for activating the SCell based at least on the RS upon receiving the SCell activation command. The UE sends a report indicating that the SCell is activated for the UE.

    Methods and Apparatus for Configuration of Sounding Reference Signals

    公开(公告)号:US20230179372A1

    公开(公告)日:2023-06-08

    申请号:US18164885

    申请日:2023-02-06

    CPC classification number: H04L5/0051

    Abstract: A method implemented by an access node includes transmitting, by the access node to a user equipment (UE), a control information message scheduling a physical downlink shared channel (PDSCH), the control information message comprising at least one parameter for the PDSCH and a sounding reference signal (SRS) request field; receiving, by the access node from the UE, a SRS transmission in accordance with the at least one parameter for the PDSCH and the SRS request field transmitted in the control information message; and transmitting, by the access node to the UE, the scheduled PDSCH in accordance with the at least one parameter for the PDSCH transmitted in the control information message.

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