公开(公告)号：US12279282B2

公开(公告)日：2025-04-15

申请号：US17434106

申请日：2020-03-20

Applicant: Apple Inc.

Inventor： Lili Wei ,  Qian Li ,  Dawei Ying ,  Gang Xiong ,  Geng Wu

IPC: H04W72/27 ,  H04W72/0446

Abstract: Systems, methods, and circuitries are provided for communicating DU resource configuration information of a child IAB node to a parent IAB node. An example method includes identifying distributed unit (DU) resource configuration information for an IAB node device functioning as an IAB node in the IAB network, wherein the IAB node is associated with a parent IAB node, and transmitting the DU resource configuration information to the parent IAB node.

公开(公告)号：US12267160B2

公开(公告)日：2025-04-01

申请号：US17420407

申请日：2020-01-08

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Gang Xiong ,  Yujian Zhang ,  Guotong Wang

IPC: H04L1/00 ,  H04L5/00 ,  H04L27/26 ,  H04W88/06 ,  H04L5/10 ,  H04W72/044 ,  H04W76/11 ,  H04W76/27 ,  H04W80/08

Abstract: A user equipment wireless communication device in a wireless communication environment receives a signal from the network that includes a radio network temporary ID. From the radio network temporary ID, the user equipment is capable of determining whether a phase tracking reference signal is present based on the radio network temporary ID. If any of these are identified by the radio network temporary ID, then the user equipment determines that a phase tracking reference signal is present. After the user equipment has determined that the phase tracking reference signal is present, the user equipment can then determine which phase tracking reference signal antenna ports are to be used based on the values of the transmitted precoding matrix indicator value and the transmit rank indicator.

公开(公告)号：US12256436B2

公开(公告)日：2025-03-18

申请号：US17441181

申请日：2020-05-04

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Gang Xiong ,  Hong He ,  Sergey Sosnin

IPC: H04W52/16 ,  H04W52/36 ,  H04W72/12 ,  H04W72/1268 ,  H04W74/08 ,  H04W74/0833

Abstract: A user equipment (UE) implementing power control for a 2-step random access channel (RACH) procedure is provided. The UE determines a first transmission power of a physical random access channel (PRACH) preamble to be used during a 2-step RACH procedure. The UE determines a second transmission power of a physical uplink shared channel (PUSCH) transmission to be used during the 2-step RACH procedure based on the first transmission power of the PRACH preamble. The UE then performs the 2-step RACH procedure based on the first transmission power of the PRACH preamble and the second transmission power of the PUSCH transmission. The UE switches to a 4-step RACH procedure from the 2-step RACH procedure based on a determination that the PRACH preamble was successfully detected and the PUSCH transmission was falsely detected, and performs the 4-step RACH procedure based on the first transmission power of the PRACH preamble.

公开(公告)号：US12213180B2

公开(公告)日：2025-01-28

申请号：US17607511

申请日：2020-04-30

Applicant: Apple Inc.

Inventor： Lopamudra Kundu ,  Gang Xiong ,  Yongjun Kwak

IPC: H04W74/0833 ,  H04W16/14 ,  H04W74/0808

Abstract: Systems, methods, and circuitries are provided for adjusting random access channel occasions support operation in unlicensed spectrum. In one example, a method includes determining a set of preconfigured random access channel (RACH) occasions (ROs) that includes a plurality of successive ROs; deriving an set of adjusted ROs by inserting a time gap between ROs in the set of preconfigured ROs; and transmitting a physical random access channel (PRACH) preamble in at least one RO in the set of adjusted ROs.

公开(公告)号：US12206476B2

公开(公告)日：2025-01-21

申请号：US18448051

申请日：2023-08-10

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Yuan Zhu ,  Gang Xiong ,  Ralf Bendlin ,  Jong-Kae Fwu

IPC: H04B7/06 ,  H04B7/0408 ,  H04B7/0456 ,  H04L5/00 ,  H04W72/0446 ,  H04W74/0833 ,  H04W84/04

Abstract: Apparatus, systems, and methods to implement receive beamforming in communication systems are described. In one example, apparatus of an evolved Node B (eNB) comprising processing circuitry to receive, from a user equipment (UE), a beamforming reference signal received power (BRS-RP) measurement and in response to the BRS-RP measurement, configure a downlink (DL) transmit (Tx) beamforming and a receiving (Rx) beamforming process on the UE. Other examples are also disclosed and claimed.

公开(公告)号：US12200512B2

公开(公告)日：2025-01-14

申请号：US17436125

申请日：2020-03-26

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Gang Xiong ,  Yujian Zhang ,  Seau S. Lim

IPC: H04W24/04 ,  H04W74/0833

Abstract: Techniques discussed herein can facilitate beam failure recovery (BFR) for a Secondary Cell (SCell) or Primary SCell (PSCell). One example embodiment comprises an apparatus configured to be employed in a User Equipment (UE), comprising: one or more processors configured to: generate a Physical Random Access Channel (PRACH) associated with a beam failure recovery request (BFRQ); generate a Physical Uplink Shared Channel (PUSCH) message associated with the BFRQ, wherein the PUSCH message comprises at least one Medium Access Control (MAC) Control Element (CE) that comprises one or more of an index associated with a cell for which beam failure was detected or an index associated with a new beam; and process a Physical Downlink Shared Channel (PDSCH) as a random access response (RAR) associated with the PRACH and the PUSCH message.

公开(公告)号：US12192038B2

公开(公告)日：2025-01-07

申请号：US17418150

申请日：2020-03-13

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Alexei Davydov ,  Gregory Morozov ,  Guotong Wang ,  Dae Won Lee ,  Gang Xiong ,  Sameer Pawar ,  Jie Zhu

IPC: H04J13/00 ,  H04L5/00 ,  H04L27/26

Abstract: Communication in a wireless network using a phase-tracking reference signal (PT-RS) for orthogonal frequency division multiplexing (OFDM) includes determining one or more PT-RS groups of adjacent subcarriers in a resource allocation for a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH), encoding data to be transmitted by the PUSCH or the PDSCH in data subcarriers within the resource allocation for the PUSCH or the PDSCH, and encoding phase-tracking reference signals within the one or more PT-RS groups of adjacent subcarriers.

公开(公告)号：US12177847B2

公开(公告)日：2024-12-24

申请号：US17414486

申请日：2020-01-09

Applicant: Apple Inc.

Inventor： Lopamudra Kundu ,  Gang Xiong ,  Yongjun Kwak ,  Yingyang Li

IPC: H04W72/04 ,  H04B1/713 ,  H04L1/1812 ,  H04W72/21

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for use in a wireless network for resource allocation during initial access. Some embodiments are directed to an apparatus including processor circuitry and radio front circuitry. The processor circuitry can be configured to determine, in accordance with a predetermined requirement, multiple physical resource blocks (PRBs) to be used for transmitting a physical uplink control channel (PUCCH) before a dedicated PUCCH resource configuration. The radio front end circuitry coupled with the processor circuitry can be configured to transmit the PUCCH using the determined PRBs and before the dedicated PUCCH resource configuration. The dedicated PUCCH resource configuration can include initial access before Radio Resource Control (RRC) connection setup.

公开(公告)号：US12149463B2

公开(公告)日：2024-11-19

申请号：US17279948

申请日：2019-09-27

Applicant: Apple Inc.

Inventor： Lopamudra Kundu ,  Bishwarup Mondal ,  Gang Xiong ,  Yongjun Kwak ,  Daewon Lee

IPC: H04L5/00 ,  H04W74/0808

Abstract: The present invention discloses one or more computer-readable media comprising instructions to: determine SRS resource allocation information to configure uplink resources for an SRS, the uplink resources to include a plurality of bandwidth ranges within a sounding bandwidth; perform a LET procedure in individual bandwidth ranges of the plurality of bandwidth ranges to detect at least one bandwidth range available for the SRS; and generate the SRS for transmission within the at least one bandwidth range.

公开(公告)号：US12143846B2

公开(公告)日：2024-11-12

申请号：US18467407

申请日：2023-09-14

Applicant: APPLE INC.

Inventor： Yongjun Kwak ,  Gang Xiong ,  Hong He ,  Yujian Zhang ,  Debdeep Chatterjee ,  Honglei Miao ,  Bharat Shrestha

IPC: H04W24/08 ,  H04L5/00 ,  H04W72/12 ,  H04W76/28 ,  H04W84/04 ,  H04W88/02

Abstract: Technology for a user equipment (UE), operable for monitoring a physical downlink control channel (PDCCH) is disclosed. The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein the predetermined monitoring occasion has a periodicity of P slots or P symbols with an offset Os. The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein Os has an offset with respect to a first slot in subframe number zero (SFN #0). The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein P is a positive integer greater than zero.