Systems and methods for physical downlink control channel candidate selection

    公开(公告)号:US12003435B2

    公开(公告)日:2024-06-04

    申请号:US17421584

    申请日:2020-01-11

    Applicant: Apple Inc.

    CPC classification number: H04L5/0035 H04W72/02 H04W72/044 H04W72/23 H04W76/15

    Abstract: Disclosed are systems and methods of selecting physical downlink control channel (PDCCH) candidates for non-coherent joint transmission (NC-JT) in a wireless network. For instance, first and second sets of ControlResourceSet and SearchSpace parameters can be configured for a UE. The first and second sets of ControlResourceSet and SearchSpace parameters are configured on a first downlink (DL) component carrier to enable NC-JT. A control channel element (CCE) limit can be determined for the first and second sets of ControlResourceSet and SearchSpace parameters. One or more PDCCH candidates can then be selected for the first and second sets of ControlResourceSet and SearchSpace parameters based at least in part on the determined CCE limits. NC-JT communication including at least a first communication from a first transmission and reception point (TRP), and a second communication from a second TRP can then be received.

    Closed loop power control for PUSCH

    公开(公告)号:US11997609B2

    公开(公告)日:2024-05-28

    申请号:US17439868

    申请日:2020-05-01

    Applicant: Apple Inc.

    CPC classification number: H04W52/146 H04W52/08 H04W72/1268 H04W72/23

    Abstract: Systems, devices, and techniques for transmit power control (TPC) in wireless communication systems are described. A described technique performed by a user equipment (UE) includes receiving downlink control information (DCI) messages corresponding to respective physical uplink shared channel (PUSCH) transmission occasions; determining power control adjustment states for the PUSCH transmission occasions; and transmitting in the PUSCH transmission occasions in accordance with the power control adjustment states. Determining the power control adjustment states can include selectively applying TPC accumulation. Determining the power control adjustment states can include determining whether a first PUSCH transmission occasion occurs out-of-order with respect to a second PUSCH transmission occasion based on an arrival ordering of the DCI messages, where the first PUSCH transmission occasion occurs before the second PUSCH transmission occasion.

    DOWNLINK CONTROL CHANNEL SIGNALING FOR UL COEXISTENCE OF MULTIPLE SERVICE TYPES

    公开(公告)号:US20220159701A1

    公开(公告)日:2022-05-19

    申请号:US17438672

    申请日:2020-05-01

    Applicant: Apple Inc.

    Abstract: Systems, devices, and techniques for controlling uplink transmissions including cancelling previously scheduled transmissions are described. A described technique includes receiving, by a user equipment (UE), a configuration information that provides a search space set configuration associated with a control resource set (CORESET) to monitor for an uplink cancellation indication; receiving, by the UE, scheduling information that schedules one or more uplink transmissions; monitoring, by the UE via a physical downlink control channel (PDCCH), for the uplink cancellation indication based on the configuration information; receiving, by the UE via the PDCCH, a downlink control information (DCI) message that comprises the uplink cancellation indication; and cancelling, by the UE, at least part of the one or more uplink transmissions in response to the uplink cancellation indication.

    CLOSED LOOP POWER CONTROL FOR PUSCH

    公开(公告)号:US20220150839A1

    公开(公告)日:2022-05-12

    申请号:US17438678

    申请日:2020-05-01

    Applicant: Apple Inc.

    Abstract: Systems, devices, and techniques for transmit power control (TPC) in wireless communication systems are described. A described technique performed by a user equipment (UE) includes signaling that enables transmit power control (TPC) accumulation; receiving, by the UE, downlink control information (DCI) messages corresponding to respective physical uplink shared channel (PUSCH) transmission occasions; determining, by the UE, power control adjustment states for the PUSCH transmission occasions; and transmitting, by the UE, in the PUSCH transmission occasions in accordance with the power control adjustment states. Determining the power control adjustment states can include selectively applying TPC accumulation to one or more of the power control adjustment states based on a determination that at least one of the PUSCH transmission occasions is out-of-order based on an arrival ordering of the DCI messages.

    TIME SYNCHRONIZATION ACCURACY ENHANCEMENTS

    公开(公告)号:US20240389039A1

    公开(公告)日:2024-11-21

    申请号:US18669751

    申请日:2024-05-21

    Applicant: Apple Inc.

    Abstract: A device of a New Radio (NR) User Equipment (UE), a system, a method and a machine-readable medium. The device includes a radio frequency (RF) interface, and a processing circuitry coupled to the RF interface, the processing circuitry to: decode a message from a NR Node B (gNodeB), the message corresponding to a unicast message or to a broadcast message and being received through a Universal Mobile Telecommunications System (UMTS) interface (Uu interface), the message further including reference time information; and determine a reference time from the reference time information, the reference time to be used by higher layers of the UE.

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