DYNAMIC COEXISTENCE OF PHYSICAL SIDELINK FEEDBACK CHANNEL TRANSMISSIONS AND SIDELINK REFERENCE SIGNAL TRANSMISSIONS

    公开(公告)号:US20250055606A1

    公开(公告)日:2025-02-13

    申请号:US18786904

    申请日:2024-07-29

    Inventor: Daniel MEDINA

    Abstract: A method for dynamic coexistence of physical sidelink feedback channel (PSFCH) transmissions and standalone sidelink reference signal (RS) transmissions including at a first apparatus, determine a candidate resource set for transmission of a first RS, the candidate resource set including a plurality of candidate resources, wherein each of the plurality of candidate resources occurs within a PSFCH transmission occasion; receive sidelink control information (SCI) from at least one second apparatus indicating a reserved resource for transmission of data by the at least one second apparatus; determine, based at least on the reserved resource, at least one associated PSFCH resource for transmission of feedback to the at least one second apparatus; and determine whether to exclude at least one candidate resource from the candidate resource set based on whether the at least one candidate resource overlaps, at least partially, with the at least one associated PSFCH resource.

    Enhanced PSFCH Resource Mapping For Standalone Sidelink CSI-RS

    公开(公告)号:US20250039851A1

    公开(公告)日:2025-01-30

    申请号:US18357315

    申请日:2023-07-24

    Abstract: An apparatus comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: determine a first allocation comprising at least one of: a first time-domain allocation comprising at least one symbol within a slot associated with a first reference signal transmission, or a first frequency-domain allocation comprising at least one subcarrier within a physical resource block associated with the first reference signal transmission, or a first code-domain allocation comprising a sequence associated with the first reference signal transmission, or a first space-domain allocation comprising a beam associated with the first reference signal transmission; and determine a physical sidelink feedback channel transmission resource for a physical sidelink feedback channel transmission in response to the first reference signal transmission at least based on the determined first allocation.

    INDICATION OF RESOURCE CONFLICT
    4.
    发明公开

    公开(公告)号:US20230147201A1

    公开(公告)日:2023-05-11

    申请号:US18047939

    申请日:2022-10-19

    CPC classification number: H04W72/0406 H04W72/085

    Abstract: There is provided a method, comprising: receiving a first SCI from a first device indicating a first reserved radio resource for transmission by the first device; receiving a second SCI from a second device indicating a second reserved radio resource for transmission by the second device, the first and second reserved radio resource overlapping at least partially; determining a first and second received signal strength associated with the received first and second SCI respectively; determining at least one of a first MCS applied by the first device or a second MCS applied by the second device; determining, based on the first MCS and/or the second MCS, at least one threshold; and determining, based on the at least one threshold and the first and second received signal strengths, whether or not to transmit a resource conflict indication to at least one of the first device or the second device.

    INTER-UE COORDINATION IN GROUPCAST TRANSMISSIONS

    公开(公告)号:US20240267893A1

    公开(公告)日:2024-08-08

    申请号:US18559552

    申请日:2022-03-24

    CPC classification number: H04W72/04 H04L1/1812

    Abstract: Apparatus and method for inter-UE coordination in groupcast transmissions are provided. Solution comprises communicating (400) with a group of apparatuses in a group communication utilising sidelink transmission, where the group of apparatuses comprises a second apparatus configured to coordinate resource allocation for the group communication and at least one other first apparatus: transmitting (402), utilising a designated hybrid automatic repeat request process, an inter-UE coordination request. Positive or negative hybrid automatic repeat request acknowledgements are received (404) from the group of apparatuses in response to transmitting the inter-UE coordination request and monitoring of inter-UE coordination requests of the at least one other first apparatus are monitored (406) based on the received acknowledgements from the at least one other first apparatus

    NR SIDELINK RESOURCE SELECTION BASED ON OVERHEARD RESOURCE RECOMMENDATIONS

    公开(公告)号:US20240251428A1

    公开(公告)日:2024-07-25

    申请号:US18558901

    申请日:2022-05-04

    CPC classification number: H04W72/25 H04W72/563 H04W92/18

    Abstract: In accordance with example embodiments of the invention there is at least a method performed by an apparatus including performing determining, by a first user equipment of more than one user equipment of a communication network, a first set of candidate radio resources for sidelink transmission by the first user equipment or a second user equipment of the more than one user equipment; receiving from a third user equipment a second set of preferred radio resources for sidelink transmission by at least one of the second user equipment, the third user equipment, or a fourth user equipment other than the first user equipment of the more than one user equipment; identifying at least one radio resource from the first set of candidate radio resources that overlaps at least partially with a radio resource in the second set of preferred radio resources; determining a subset of the first set of candidate radio resources based at least in part on the identified at least one overlapping radio resource; and at least one of selecting from the determined subset one or more radio resources for sidelink transmission by the first user equipment or transmitting the determined subset to the second user equipment.

    RADIO RESOURCE RESERVATION FOR INTER-UE COORDINATION IN NR SIDELINK MODE 2

    公开(公告)号:US20240224368A1

    公开(公告)日:2024-07-04

    申请号:US18563737

    申请日:2022-06-06

    CPC classification number: H04W76/20 H04L1/08 H04W72/02 H04W72/52

    Abstract: Systems, methods, apparatuses, and computer program products for radio resource reservation for inter-UE coordination in NR sidelink mode 2. The method may include transmitting from a first user equipment to a second user equipment, a first coordination request to request a set of preferred or non-preferred radio resources for transmission by the first user equipment. The first coordination request may include at least a first resource indication value for indicating a first radio resource for transmission of a corresponding first coordination message by the second user equipment to the first user equipment. The method may also include receiving the corresponding first coordination message from the second user equipment transmitted on the first radio resource in response to the first coordination request.

    EFFICIENT SIGNALING OF SIDELINK RADIO RESOURCES

    公开(公告)号:US20240113821A1

    公开(公告)日:2024-04-04

    申请号:US18264382

    申请日:2022-02-16

    CPC classification number: H04L5/0044 H04W72/0453

    Abstract: Disclosed is a method for efficient signaling of sidelink radio resources. A first terminal device selects a subset of radio resources from a set of candidate radio resources. The first terminal device determines a set of resource indices for the subset of radio resources based at least partly on a pre-defined enumeration order of the set of candidate radio resources in time and frequency. The first terminal device determines a first resource indication value indicating at least the set of resource indices. The first terminal device transmits the first resource indication value to one or more second terminal devices.

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