INTER-DEVICE COMMUNICATION
    61.
    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

    申请人: Apple Inc.

    IPC分类号: H04W74/08 H04W76/14 H04W72/04

    摘要: 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

    申请人: Apple Inc.

    摘要: 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.

    SYSTEMS AND METHODS FOR CONFIGURING TRANSMISSION POWER LEVEL BASED ON BODY PROXIMITY

    公开(公告)号:US20230132977A1

    公开(公告)日:2023-05-04

    申请号:US17747525

    申请日:2022-05-18

    申请人: Apple Inc.

    IPC分类号: H04B1/3827 H04W52/38

    摘要: A first transmission power level based on a radio frequency exposure limit and a second transmission power level based on the first transmission power level and a probability of detection of a body by a body proximity sensor are determined, where it is ensured that an average usage of the first and second transmission power levels over time does not exceed the transmission power limit, determined based on radio frequency exposure limits. A transmission power gain is determined based on a difference between the first and second transmission power level based on the probability of detection, and a false alarm rate of the body by the body proximity sensor. The transmission power gain may be used as a performance indicator to select from multiple first and second transmission power gains. First and second transmission power gains corresponding to the selected transmission power gain may be stored and applied during transmission.

    CELL RESELECTION AND MEASUREMENT IN A HIGH-SPEED MODE IN WIRELESS COMMUNICATIONS

    公开(公告)号:US20230116740A1

    公开(公告)日:2023-04-13

    申请号:US17441689

    申请日:2021-01-13

    申请人: Apple Inc.

    IPC分类号: H04W36/32 H04W36/00

    摘要: The present application relates to devices and components including apparatus, systems, and methods to perform cell reselection. In an example, timing requirements for synchronization signal processing are defined based on a beam sweeping capability of the device. Synchronization signals are received and processed according to the timing requirements to complete a cell reselection procedure. In another example, location data of the device is used to look up a database of cell identifiers. A cell identifier is determined based on the look-up and a cell reselection procedure is performed using the cell identifier.

    DYNAMICALLY BEAMFORMED CONTROL CHANNEL FOR BEAMFORMED CELLS

    公开(公告)号:US20220352943A1

    公开(公告)日:2022-11-03

    申请号:US17859363

    申请日:2022-07-07

    申请人: Apple Inc.

    摘要: Disclosed herein are apparatuses, systems, and methods using or implementing dynamic beamforming in control channels, by transmitting downlink control channels to user equipment (UEs) in a number of orthogonal frequency division multiplexing (OFDM) symbols of a downlink subframe. A first OFDM symbol of the number of OFDM symbols can be transmitted using first beamforming parameters in a first direction, and a second OFDM symbol of the number of OFDM symbols can be transmitted using second beamforming parameters different from the first beamforming parameters and in a second direction different from the first direction. The number of OFDM symbols used, as well as other parameters, can be dynamically adjusted in subsequent subframes. Other embodiments are described.

    Systems and Methods for Multi-PxSCH Scheduling in Unlicensed Channels

    公开(公告)号:US20220346125A1

    公开(公告)日:2022-10-27

    申请号:US17724848

    申请日:2022-04-20

    申请人: Apple Inc.

    摘要: A base station (BS) and a user equipment (UE) establish a wireless link. The BS transmits first downlink control information (DCI) to the UE over an unlicensed spectrum during a first channel occupancy time (COT). The first DCI schedules a plurality of shared channel communications, which may be physical uplink shared channel (PUSCH) communications or physical downlink shared channel communication (PDSCH) communications. The first DCI also schedules an acknowledgment message for one or more of the plurality of shared channel communications. The scheduling indicated by the first DCI may include cross-COT scheduling, where one or more communications are scheduled in a second COT or outside of a COT. The UE and the BS perform the plurality of shared channel communications according to scheduling indicated by the first DCI.