Notification and acquisition of ETWS/CMAS in connected mode for UEs in CE

    公开(公告)号:US12041524B2

    公开(公告)日:2024-07-16

    申请号:US17441447

    申请日:2020-03-26

    Applicant: Apple Inc.

    CPC classification number: H04W4/90

    Abstract: Methods, systems, apparatus, and computer programs, for warning system notifications and acquisition. In one aspect, the method includes actions of receiving, by user equipment (UE) and from an access node, data indicating the presence of a PDSCH broadcast, configuring, by the UE and based on the received data, a narrowband (NB) to receive transport blocks in PDSCH, and receiving, by the UE, one or more transport blocks broadcast in PDSCH using the NB, the one or more transport blocks including the warning system information.

    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.

    RS (reference signal) sequence generation and mapping and precoder assignment for NR (new radio)

    公开(公告)号:US11601315B2

    公开(公告)日:2023-03-07

    申请号:US17531879

    申请日:2021-11-22

    Applicant: Apple Inc.

    Abstract: Systems, methods, and circuitries are disclosed for determining Precoding Resource Block Groups (PRGs). In one example, a processor of a base station (BS) is configured to determine a plurality of PRGs that includes a number N consecutive Physical Resource Blocks (PRBs) over which a same precoder assignment is used, starting from a reference PRB. The plurality PRGs include a first boundary PRG, a second boundary PRG, and one or more other PRGs. The first boundary PRG is located at an upper boundary of a bandwidth part. The first boundary PRG comprises fewer than N PRBs when the upper boundary of the bandwidth part is not aligned with a PRG boundary. The second boundary PRG comprises fewer than N PRBs when a lower boundary of the bandwidth part is not aligned with a PRG boundary. A downlink data channel is transmitted to a UE in accordance with the precoder assignments.

    Hybrid Automatic Repeat Request (HARQ) Based on Codeblock Groups in New Radio Systems

    公开(公告)号:US20230007635A1

    公开(公告)日:2023-01-05

    申请号:US17903376

    申请日:2022-09-06

    Applicant: Apple Inc.

    Abstract: Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may receive a physical downlink control channel (PDCCH) that schedules a physical downlink shared channel (PDSCH) in a slot, and on a component carrier (CC) of a plurality of CCs. The PDCCH may include a total downlink assignment index (DAI) and a counter DAI for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback of the PDSCH. The total DAI may indicate a total number of pairs of CCs and slots for the HARQ-ACK feedback. The UE may encode the HARQ-ACK feedback to include a bit that indicates whether the PDSCH is successfully decoded. A size of the HARQ-ACK feedback may be based on the total DAI, and a position of the bit may be based on the counter DAI.

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