Timing adjustment techniques in wireless communications

    公开(公告)号:US11937219B2

    公开(公告)日:2024-03-19

    申请号:US17688500

    申请日:2022-03-07

    CPC classification number: H04W72/0446 H04L5/005 H04W72/23

    Abstract: Methods, systems, and devices for wireless communications are described that provide for timing adjustments that may be used in communications between wireless devices in a wireless communications system and signaling of such timing adjustments using physical layer signaling (e.g., layer 1 (L1) signaling). A first timing adjustment may be provided by a parent node to one or more associated child nodes that corresponds to a propagation delay between the parent node and its control node or a relay node through which the parent node communicates with a core network. In some cases, the physical layer signaling used to transmit the first timing adjustment may be a reference signal transmission, a downlink control information transmission, or any combination thereof.

    Delay bounds for scheduling priority and packet discard in an integrated access and backhaul network

    公开(公告)号:US11876722B2

    公开(公告)日:2024-01-16

    申请号:US17394331

    申请日:2021-08-04

    CPC classification number: H04L47/32 H04W88/18

    Abstract: A method, a computer-readable medium, and an apparatus are provided for wireless communication at an integrated access and backhaul (TAB) node. The TAB node receives a first delay parameter and a second delay parameter associated with a packet, the first delay parameter being associated with a discard determination for the packet and the second delay parameter being associated with scheduling the packet for transmission. The TAB node performs a discard decision for the packet based on the first delay parameter associated or schedules the packet for transmission to a second TAB node or a user equipment (UE) using a second delay parameter associated with the packet. A central unit (CU) of an TAB network may indicate, to an TAB node, the second delay parameter for scheduling a packet and the first delay parameter for determining whether to discard the packet.

    Gradual migration in an Integrated Access and Backhaul (IAB) network

    公开(公告)号:US11743757B2

    公开(公告)日:2023-08-29

    申请号:US17454572

    申请日:2021-11-11

    CPC classification number: H04W28/0263 H04W28/0226 H04W28/0231

    Abstract: Aspects of the present disclosure provide techniques for handover in an Integrated Access and Backhaul (IAB) network or other type of network. One example method which may be performed by a source base station (BS) includes: determining to migrate a child node from a first logical IAB-distributed unit (DU) of an IAB-node to a second logical IAB-DU of the IAB-node, wherein the first logical IAB-DU is associated with the source BS, and wherein the second logical IAB-DU is associated with a target BS; sending, to the target BS, context information of the child node served by the first logical IAB-DU in response to the determination; and indicating, to the target BS, a traffic mapping configuration at the IAB-node associated with the context information and a backhaul connection of the IAB-node.

    Enhanced context transfer of an integrated access and backhaul node

    公开(公告)号:US11711733B2

    公开(公告)日:2023-07-25

    申请号:US17318759

    申请日:2021-05-12

    CPC classification number: H04W36/0033 H04W40/22

    Abstract: Methods, systems, and devices for wireless communications are described. a first donor node may serve a relay node, which in turn may serve a child node. The first donor node may determine to transfer (e.g., via a handover procedure) the relay node to a second donor node. The first donor node may transmit a first context transfer request for the relay node to the second donor node, and may transmit a second context transfer request for the child node of the relay node to the second donor node. The first donor node may indicate a correlation between the two context transfers. The second donor node may identify the correlated context transfers, and may successfully perform a migration procedure for the relay node and any descendent devices or nodes based on the correlated context transfers.

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