Redundancy version configuration for URLLC DCI format

    公开(公告)号:US11979886B2

    公开(公告)日:2024-05-07

    申请号:US17331214

    申请日:2021-05-26

    CPC classification number: H04W72/23

    Abstract: Example implementations include a method, apparatus and computer-readable medium of wireless communication, including receiving a configuration of one or more downlink control information (DCI) formats to include a single bit for a redundancy version field. The implementations further include receiving a radio resource control (RRC) message indicating selectable redundancy versions. Additionally, the implementations further include detecting a DCI based on the one or more DCI formats including the single bit for the redundancy version field, the DCI scheduling a transmission. Additionally, the implementations further include selecting a redundancy version from the selectable redundancy versions based on the single bit. Additionally, the implementations further include encoding or decoding the transmission based on the redundancy version.

    Preemption for sidelink communications

    公开(公告)号:US11974294B2

    公开(公告)日:2024-04-30

    申请号:US17313913

    申请日:2021-05-06

    CPC classification number: H04W72/23 H04W72/1268 H04W74/0808 H04W76/14

    Abstract: Methods, systems, and devices for wireless communications are described that provide for sidelink preemption. In some examples, a base station may transmit a preemption indication to instruct a user equipment (UE) to refrain from transmitting on a set of resources. In some examples, the preemption indication may be transmitted to a UE through a relay UE, which may adjust timing or resources of the preemption indication, include receipt or generation info of the preemption indication, or refrain from transmitting the preemption indication. Additionally, or alternatively, one or more sidelink UEs may infer a preemption indication from an uplink cancellation indication, and may refrain from performing sidelink communications based on the preemption indication.

    TECHNIQUES FOR ENHANCED SOUNDING REFERENCE SIGNAL MULTIPLEXING

    公开(公告)号:US20240137256A1

    公开(公告)日:2024-04-25

    申请号:US18048778

    申请日:2022-10-20

    CPC classification number: H04L27/2613 H04L5/0051

    Abstract: Techniques and devices for wireless communications are described. A user equipment (UE) may receive a configuration from a network entity for multiplexing a reference signal with a data signal in time and in frequency or for multiplexing the reference signal in a Doppler domain. The UE may receive an assignment of multiple time-frequency resources from the network entity for transmission of the reference signal. The UE may multiplex the reference signal across the assigned time-frequency resources in accordance with the received configuration. The UE may transmit the multiplexed reference signal to the network entity.

    Techniques for reference signal bundling in sidelink channels

    公开(公告)号:US11968142B2

    公开(公告)日:2024-04-23

    申请号:US17405899

    申请日:2021-08-18

    CPC classification number: H04L5/0048 H04L25/0202 H04W92/18

    Abstract: Methods, systems, and devices for wireless communication are described, including techniques for utilizing implicit or explicit signaling to indicate a cancellation of demodulation reference signal (DMRS) bundling. A first user equipment (UE) may perform DMRS bundling across physical sidelink channels transmitted to a second UE to enable the second UE to perform joint channel estimation. In some examples, based on a detected change, either at the first UE or the second UE, the first UE may signal to the second UE that the DMRS bundling is canceled. In some examples, the detected change may be a resource allocation change, a physical channel configuration change, a change in a quasi-colocation (QCL) relationship at the first UE, or a change in a transmission configuration indicator (TCI) state at the first UE. Additionally or alternatively, the first UE or the second UE may request the cancellation based on detected changes.

    SUPPORT OF LOW LATENCY TRANSMISSIONS IN SIDELINK

    公开(公告)号:US20240114541A1

    公开(公告)日:2024-04-04

    申请号:US17952035

    申请日:2022-09-23

    CPC classification number: H04W72/1231 H04B17/318 H04W72/1242 H04W72/1278

    Abstract: Methods, systems, and devices for wireless communications are described. Sidelink communications between user equipments (UE)s may include services that demand low latency and high reliability, such as extended reality (XR) and ultra-reliable low latency communications (URLLC). Given the latency demands for XR and URLLC, XR and URLLC may be higher priority than other communications types. A UE may determine that data for transmission over sidelink has a high priority level based on a remaining packet delay budget associated with the data. UEs may monitor for sidelink transmissions in accordance with network configured discontinuous reception (DRX) cycles. The DRX cycles configured by the network for sidelink communications, however, may not match with the periodicity of XR traffic. For XR communications, the transmitting UE may indicate an offset to apply to a DRX cycle such that the receiving UE may adjust the DRX cycle to match the periodicity of the XR communications.

    CODED SIDELINK FEEDBACK FOR IMPROVED RELIABILITY

    公开(公告)号:US20240106570A1

    公开(公告)日:2024-03-28

    申请号:US17953180

    申请日:2022-09-26

    CPC classification number: H04L1/0073 H04L1/0013 H04L1/201 H04W76/14

    Abstract: Methods, systems, and devices for wireless communications are described herein. A user equipment (UE) may generate a set of feedback bits corresponding to sidelink messages received via one or more sidelink channels. The UE may transmit a first sidelink message via a first feedback resource of a physical sidelink feedback channel occasion. The first sidelink message may include a first subset of the feedback bits. The UE may transmit at least two additional sidelink feedback messages via respective feedback resources. The first additional sidelink feedback message may include the first subset of feedback bits and a second subset of feedback bits encoded using an erasure coding function.

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