Preemption indications for new radio

    公开(公告)号:US11683145B2

    公开(公告)日:2023-06-20

    申请号:US17536471

    申请日:2021-11-29

    Applicant: Apple Inc.

    CPC classification number: H04L5/0053 H04L5/0064 H04L5/0094 H04W72/23 H04W76/27

    Abstract: Embodiments of dynamic multiplexing are described, including the transmission of preemption indication (PI) to indicate preemption of time-frequency resources. In some embodiments, a next Generation NodeB (gNB) is configured to transmit PIs in signaling to preempt an enhanced Mobile Broadband (eMBB) communications transmission with an ultra-reliable and low latency communications (URLCC) transmission. In some embodiments, a user equipment (UE) is configured to monitor a region of time-frequency resources, within a bandwidth part (BWP), for a PI. The PI indicates to the UE a portion of time-frequency resources that omit transmissions intended for the UE. In some embodiments, the gNB transmits the PI to the UE within preemption indication downlink control information (PI-DCI) in a physical downlink control channel (PDCCH) in a control resource set (CORESET). In some embodiments, the BWP is defined according to a frequency domain location, a bandwidth, and a subcarrier spacing for a given numerology.

    Enhanced PDCCH monitoring in new radio systems

    公开(公告)号:US11638246B2

    公开(公告)日:2023-04-25

    申请号:US17267091

    申请日:2019-08-08

    Applicant: Apple Inc.

    Abstract: Systems, apparatuses, methods, and computer-readable media are provided for a user equipment (UE) device that includes one or more processors configured to identify a search space for physical downlink control channel (PDCCH) candidates by: determining whether the search space is a group common search space or a UE specific search space; determining a number of PDCCH candidates per aggregation level (AL); determining a PDCCH monitoring periodicity and a PDCCH monitoring offset for the search space, each including a plurality of slots; determining monitored slots in the monitoring periodicity; determining, for each monitored slot, a monitoring pattern including a set of selected symbols; and determining a set of monitoring occasions corresponding to the set of selected symbols in each monitored slot of each monitoring periodicity. The one or more processors are configured to decode downlink signals received in the set of monitoring occasions to search for PDCCH information for the UE.

    Prioritized Messaging and Resource Selection in Vehicle-to-Vehicle (V2V) Sidelink Communication

    公开(公告)号:US20230099813A1

    公开(公告)日:2023-03-30

    申请号:US17993752

    申请日:2022-11-23

    Applicant: Apple Inc.

    Abstract: Embodiments of a Generation Node-B (gNB), User Equipment (UE) and methods for communication are generally described herein. The gNB may allocate a resource pool of physical resource blocks (PRBs) and sub-frames for vehicle-to-vehicle (V2V) sidelink transmissions. The gNB may receive, from a UE, an uplink control message that indicates that the UE requests a V2V sidelink transmission of a prioritized message. The gNB may select, for the V2V sidelink transmission of the prioritized message, one or more PRBs and one or more sub-frames. The gNB may transmit, to the UE and to other UEs, a downlink control message that indicates: the selected PRBs, the selected sub-frames, and that the other UEs are to mute sidelink transmissions in the selected PRBs in the selected sub-frames to enable the V2V sidelink transmission of the prioritized message.

    TCI and QCL configuration in 5G networks

    公开(公告)号:US11601824B2

    公开(公告)日:2023-03-07

    申请号:US17259057

    申请日:2019-08-07

    Applicant: Apple Inc.

    Abstract: User equipment (UE) includes processing circuitry coupled to memory. To configure the UE for multi-transmission reception point (TRP) reception, the processing circuitry is to decode radio resource control (RRC) signaling. The RRC signaling includes configuration information configuring a plurality of transmission configuration indication (TCI) states. A media access control (MAC) control element (CE) is decoded, where the MAC CE indicates multiple active TCI states of the configured plurality of TCI states. Multiple received beams are determined using the multiple active TCI states. Downlink information is decoded, where the downlink information originates from multiple TRPs and is received via the determined multiple receive beams associated with the multiple active TCI states.

    Systems and methods for physical channel repetition for low latency communication

    公开(公告)号:US11387942B2

    公开(公告)日:2022-07-12

    申请号:US16410095

    申请日:2019-05-13

    Applicant: Apple Inc.

    Abstract: An apparatus is configured for a next Generation NodeB (gNB). The apparatus comprises baseband circuitry and/or application circuitry which includes a radio frequency (RF) interface and one or more processors. The one or more processors are configured to determine a transmission mode for a user equipment (UE) device; dynamically determine a repetition level sequence for a physical downlink shared channel (PDSCH) based on a transmission time interval (TTI) and the transmission mode; generate repetition level signaling for the determined repetition level sequence; and provide the generated repetition level signaling to the RF interface for transmission to the UE device.

    Preemption Indications for New Radio

    公开(公告)号:US20220140977A1

    公开(公告)日:2022-05-05

    申请号:US17536471

    申请日:2021-11-29

    Applicant: Apple Inc.

    Abstract: Embodiments of dynamic multiplexing are described, including the transmission of preemption indication (PI) to indicate preemption of time-frequency resources. In some embodiments, a next Generation NodeB (gNB) is configured to transmit PIs in signaling to preempt an enhanced Mobile Broadband (eMBB) communications transmission with an ultra-reliable and low latency communications (URLCC) transmission. In some embodiments, a user equipment (UE) is configured to monitor a region of time-frequency resources, within a bandwidth part (BWP), for a PI. The PI indicates to the UE a portion of time-frequency resources that omit transmissions intended for the UE. In some embodiments, the gNB transmits the PI to the UE within preemption indication downlink control information (PI-DCI) in a physical downlink control channel (PDCCH) in a control resource set (CORESET). In some embodiments, the BWP is defined according to a frequency domain location, a bandwidth, and a subcarrier spacing for a given numerology.

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