Sidelink Control Information Processing
    591.
    发明公开

    公开(公告)号:US20230144397A1

    公开(公告)日:2023-05-11

    申请号:US17053278

    申请日:2019-11-07

    Applicant: Apple Inc.

    Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a vehicle-to-everything (V2X) capable wireless device configured to perform sidelink cellular communications. The wireless device performs sidelink communications using a two-stage sidelink control information (SCI) protocol including Stage 1 SCI messaging carried on a physical sidelink control channel (PSCCH), and Stage 2 SCI messaging carried on a physical sidelink shared channel (PSSCH). The SCI messaging may be encoded using polar codes. Channel interleaving is utilized on the SCI to interleave the SCI between two or more layers of a MIMO transmission system. Scrambling for Stage 2 SCI messaging is performed based on the result of a cyclic redundancy check (CRC) performed on Stage 1 SCI messaging. Collisions between sidelink HARQ feedback to be transmitted to a base station and other transmissions are avoided based on a priority analysis of the sidelink HARQ feedback.

    INTER-DEVICE COMMUNICATION
    592.
    发明公开

    公开(公告)号:US20230141742A1

    公开(公告)日:2023-05-11

    申请号:US17901022

    申请日:2022-09-01

    Applicant: Apple Inc.

    CPC classification number: H04W74/0841 H04W76/14 H04W72/0446

    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for communications between user equipment. One of the methods includes receiving, by a first device and from a second device, sidelink control information indicating a resource reservation for a single-slot resource for the second device to use to communicate with the first device; determining, by the first device and based at least in part on the sidelink control information, whether a potential resource collision exists when the first device is scheduled to communicate with another device using the single-slot resource or when the single-slot resource is reserved by another device; and in response to determining that the potential resource collision exists, sending, by the first device and within a predetermined number of slots from a reference slot, a collision message to cause the second device to determine another single-slot resource to use to communicate with the first device.

    TECHNOLOGIES IN MULTI-PDSCH TRANSMISSION IN A WIRELESS NETWORK

    公开(公告)号:US20230140729A1

    公开(公告)日:2023-05-04

    申请号:US17947945

    申请日:2022-09-19

    Applicant: Apple Inc.

    Abstract: In an example method, a user equipment (UE) device receives a slot of data from a base station (BS). The UE device determines a quality of a wireless channel between the BS to the UE device, including determining (i) a metric for a interval extending from a sequentially first symbol of the slot of data to a symbol immediately preceding the first subset of symbols, (ii) a metric for an interval extending from the sequentially first symbol of the slot of data to a sequentially last symbol of the first subset of symbols, (iii) a metric for an interval extending from the sequentially first symbol of the slot of data to a symbol immediately preceding the second subset of symbols, and/or (iv) a metric for an interval extending from the sequentially first symbol of the slot of data to a sequentially last symbol of the second subset of symbols.

    Common Analog Beam Steering for Band Groups

    公开(公告)号:US20230110967A1

    公开(公告)日:2023-04-13

    申请号:US16978559

    申请日:2019-09-06

    Applicant: Apple Inc.

    Abstract: Apparatuses, systems, and methods for a wireless device and a cellular base station to support common analog beam steering for band groups. The wireless device may provide an indication of analog beam steering capability of the wireless device to the cellular base station. For example, the wireless device may support a limited number of analog beams for each of one or more band groups. The cellular base station may select beam configuration information for the wireless device based at least in part on the indication of analog beam steering capability of the wireless device. This may include selecting a common beam for multiple component carriers for the wireless device based on the wireless device’s analog beam steering capability. The cellular base station may provide the beam configuration information to the wireless device.

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