USER EQUIPMENT BASED TIMING ADVANCE MEASUREMENTS

    公开(公告)号:US20250113265A1

    公开(公告)日:2025-04-03

    申请号:US18887710

    申请日:2024-09-17

    Abstract: Systems, methods, apparatuses, and computer program products for user equipment based timing advance measurements. The method may include receiving a layer 1/layer 2 triggered mobility configuration for one or more candidate target cells, wherein UE-based TA measurement is enabled for a plurality of cells comprising the one or more candidate target cells and performing user equipment-based timing advance measurements for the plurality of cells according to a first user equipment-based timing advance measurements behavior during a layer 1/layer 2 triggered mobility procedure. An indication to enable a second user equipment-based timing advance measurements behavior may be received. User equipment-based timing advance measurements for the plurality of cells according to the second user equipment-based timing advance measurements behavior based on the indication may be performed.

    METHOD AND APPARATUS FOR IMPROVED DETERMINATION OF TIMING ADVANCES

    公开(公告)号:US20250056457A1

    公开(公告)日:2025-02-13

    申请号:US18793283

    申请日:2024-08-02

    Abstract: A user equipment (UE) may receive, from a first network entity, an indication of a configuration for the UE to report, to the first network entity, an estimate of a first timing advance value for a second network entity. The UE may determine the estimate of the first timing advance value. The UE may transmit, to the first network entity, the estimate of the first timing advance value for the second network entity or a reference signal time difference associated with the estimate of the first timing advance value. The UE may receive, from the first network entity, an indication of an error value associated with the estimate of the first timing advance value. The UE may determine a second timing advance value based on the estimate of the first timing advance value and the error value. The UE may transmit communications using the second timing advance value.

    CONFIGURATION AND TRANSMISSION OF CHANNEL STATE INFORMATION REFERENCE SIGNAL

    公开(公告)号:US20240146485A1

    公开(公告)日:2024-05-02

    申请号:US17979533

    申请日:2022-11-02

    CPC classification number: H04L5/0057 H04W36/0058

    Abstract: Systems, methods, apparatuses, and computer program products for configuration and transmission of a channel state information reference signal (CSI-RS). A method may include forwarding, to a network element, synchronization signal block measurements of a target cell along with synchronization signal block indices. The method may also include requesting the network element to provide a channel state information reference signal configuration for a channel state information reference signal index whose source reference signal corresponds to at least one of the synchronization signal block indices. The method may further include receiving the channel state information reference signal configuration from the network element. In addition, the method may include transmitting the channel state information reference signal configuration to a user equipment. Further, the method may include receiving a measurement report on the channel state information reference signal index according to the channel state information reference signal configuration.

    MANAGING COEXISTENCE OF USER EQUIPMENT-BASED AND RANDOM ACCESS CHANNEL-BASED TIMING ADVANCE VALUES

    公开(公告)号:US20250126635A1

    公开(公告)日:2025-04-17

    申请号:US18911617

    申请日:2024-10-10

    Abstract: A method is provided that includes receiving a configuration of selection criteria for a timing advance (TA) of a target cell, acquired by respective acquisition schemes including a user equipment (UE)-based acquisition scheme and a random access channel (RACH)-based acquisition scheme. The method includes acquiring a UE-based TA value according to the UE-based acquisition scheme, and transmitting a random access preamble to the target cell that is configured to acquire a RACH-based TA value according to the RACH-based acquisition scheme. The method includes receiving a cell-switch command from a serving cell to trigger a cell switch to the target cell, after the UE-based TA value and the RACH-based TA value are acquired. And the method includes accessing the target cell using a TA value selected from the UE-based TA value and the RACH-based TA value, based on the configuration.

    POWER RAMPING PROCEDURE
    8.
    发明申请

    公开(公告)号:US20250056427A1

    公开(公告)日:2025-02-13

    申请号:US18797523

    申请日:2024-08-08

    Abstract: Example embodiments of the present disclosure relate to methods, devices, apparatuses and computer readable storage medium for power ramping procedure. In a method, a first apparatus performs a first random access transmission with a transmission power determined based on a power ramping counter. The first random access 5 transmission is associated with a first random access procedure initiated by a physical downlink control channel (PDCCH) order. The first apparatus stores a value of the power ramping counter.

    TCI STATE ACTIVATION AND INDICATION METHOD
    9.
    发明公开

    公开(公告)号:US20240340719A1

    公开(公告)日:2024-10-10

    申请号:US18430101

    申请日:2024-02-01

    CPC classification number: H04W36/0072 H04W36/08

    Abstract: An apparatus configured to: receive an indication to activate one or more transmission configuration indication states associated with at least one of: a source cell, or at least one target cell; and update a list of activated transmission configuration indication states based, at least partially, on the received indication. An apparatus configured to: transmit, to a user equipment, an indication to activate one or more transmission configuration indication states associated with at least one of: a source cell, or at least one target cell; and transmit, to the user equipment, an indication of a codepoint value of a list of activated transmission configuration indication states.

    APPARATUS, METHOD, AND COMPUTER PROGRAM
    10.
    发明公开

    公开(公告)号:US20240284369A1

    公开(公告)日:2024-08-22

    申请号:US18440406

    申请日:2024-02-13

    CPC classification number: H04W56/0045 H04B17/328 H04W24/10 H04W76/10

    Abstract: There is provided a method, computer program, and apparatus for causing an apparatus for a first access node to perform: establishing a connection towards a user equipment via a serving cell supported by the first access node; instructing the user equipment to obtain a first timing advance value for a target cell supported by a second access node, wherein the first timing advance value indicates a timing for transmitting uplink transmissions to the target cell; receiving, from the second access node, an indication that the first timing advance value is or will soon be invalid; and determining whether to instruct the user equipment to obtain a second timing advance value for the target cell in dependence on the received indication, the second timing advance value being obtained later in time than the first timing advance value.

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