公开(公告)号：US11152994B1

公开(公告)日：2021-10-19

申请号：US16884762

申请日：2020-05-27

Applicant: Apple Inc.

Inventor： Weidong Yang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Ismael Gutierrez Gonzalez ,  Wei Zeng ,  Wei Zhang ,  Yuchul Kim ,  Yushu Zhang

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/0413

Abstract: The systems, methods, and apparatuses can receive one or more communication signals traversing through a communication channel. The systems, methods, and apparatuses can estimate one or more known parameters, characteristics, and/or attributes of the communication channel, for example, scattering, fading, and/or power decay over distance, through a process referred to as channel estimation. The systems, methods, and apparatuses can develop various channel coefficients, for example, amplitudes and/or phases, describing the channel response of the communication channel at discrete intervals of time, also referred to as taps. The systems, methods, and apparatuses can assign taps to various priorities and, thereafter, utilize these priorities to selectively include their corresponding channel coefficients in a CSI report or exclude their corresponding channel coefficients from the CSI report.

公开(公告)号：US20210251015A1

公开(公告)日：2021-08-12

申请号：US17174315

申请日：2021-02-11

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Haitong Sun ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Hong He ,  Jie Cui ,  Oghenekome Oteri ,  Weidong Yang ,  Wei Zeng ,  Yang Tang ,  Yuchul Kim ,  Yuqin Chen ,  Yushu Zhang

IPC: H04W74/08 ,  H04W72/04 ,  H04W76/27

Abstract: The implementations disclosed provide apparatus, systems, and methods for channel structure construction for a two-step random access channel (RACH) using a new radio (NR) user equipment (UE) wireless device. The wireless device includes one or more computer processors configured to generate a physical RACH (PRACH) preamble mapped to a physical uplink shared channel (PUSCH) resource unit. The PRACH preamble is associated with a preamble group indicating a configuration of the PUSCH. The preamble group has a size indicated by radio resource control (RRC) signaling performed by the wireless device. A message is encoded including the PRACH preamble and a payload carried by the PUSCH. The configuration of the PUSCH includes parameters for decoding the message. The wireless device couples communicatively to a base station using the PUSCH. The message is transmitted to the base station. The base station decodes the message based on the parameters of the PUSCH configuration.

公开(公告)号：US20250142504A1

公开(公告)日：2025-05-01

申请号：US18837318

申请日：2022-02-11

Applicant: APPLE INC.

Inventor： Jie Cui ,  Manasa Raghavan ,  Dawei Zhang ,  Yang Tang ,  Chunhai Yao ,  Qiming Li ,  Xiang Chen ,  Hong He ,  Yushu Zhang ,  Fangli Xu

IPC: H04W56/00 ,  H04B17/318 ,  H04W76/28

Abstract: Systems and methods for performing timing advance (TA) validation at a user equipment (UE) for a TA to be used when transmitting a configured grant small data transmission (CG-SDT). Mechanisms for bounding one or more measurement windows during which one or more synchronization signal blocks are measured during a reference signal received power (RSRP) measurement method of the TA validation are discussed, and may be set using information corresponding to timing drift due to relativistic effects, clock differences between a UE and a base station, and/or information about a UE discontinuous reception (DRX) cycle. Further, time interval limitations between various events attendant to such an RSRP measurement method are discussed as being determined using information corresponding to timing drift due to relativistic effects, clock differences between a UE and a base station, information about a DRX cycle used at the UE, and/or a maximum TA timer duration.

公开(公告)号：US12284670B2

公开(公告)日：2025-04-22

申请号：US17759788

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Yuqin Chen ,  Chunhai Yao ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Yushu Zhang ,  Zhibin Wu

IPC: H04W74/00 ,  H04W74/0808 ,  H04W74/0833

Abstract: The exemplary embodiments relate to a user equipment (UE) delivering an indication of one or more uplink listen-before-talk (LBT) failures to a network. The UE may identify a predetermined condition corresponding to one or more uplink listen-before-talk (LBT) failures associated with a special cell (SpCell). The UE is triggered to provide an indication of uplink LBT failure associated with the SpCell to the network based on the predetermined condition. Next, the UE may determine a type of message that is to be used to deliver the indication of uplink LBT failure associated with the SpCell to the network. The UE may transmit the type of message including the indication of uplink LBT failure associated with the SpCell to the network. Subsequently, the UE may determine that the network received the indication of uplink LBT failure associated with the SpCell.

公开(公告)号：US12273906B2

公开(公告)日：2025-04-08

申请号：US17439024

申请日：2020-10-12

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yushu Zhang ,  Huaning Niu ,  Hong He ,  Wei Zeng ,  Chunxuan Ye ,  Oghenekome Oteri ,  Sigen Ye ,  Dawei Zhang ,  Chunhai Yao ,  Jie Cui ,  Yang Tang

IPC: H04W72/542 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23

Abstract: A cellular base station (BS) which transmits more flexible downlink control information (DCI) to the UE, and a UE capable of receiving and processing a received DCI message. The DCI message may have a DCI format of 0_1 or 0_2 and further may comprise an UL-SCH set to 0, a CSI request field of all 0s and an SRS request field having a nonzero value. The DCI message may indicate to the UE that the UE should: 1) transmit an aperiodic SRS corresponding to SRS request; and 2) that the UE should not transmit on the PUSCH. The DCI may include existing fields that specify either a slot offset or beam information useable when transmitting the aperiodic SRS. The base station may also generate a DCI message with an SRS trigger that is targeted to a plurality of UEs in a group, or a plurality of groups of UEs, for greater efficiency.

公开(公告)号：US12256454B2

公开(公告)日：2025-03-18

申请号：US17755483

申请日：2019-11-04

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Chunhai Yao ,  Clive E. Rodgers ,  Dawei Zhang ,  Haijing Hu ,  Haitong Sun ,  Wei Zeng ,  Yuqin Chen ,  Yushu Zhang ,  Zhibin Wu

IPC: H04W76/19 ,  H04W16/28 ,  H04W72/1263 ,  H04W72/56 ,  H04W74/0833

Abstract: A user equipment (UE) is connected to a wireless network and operates in a carrier aggregation (CA) state that includes a first connection to a primary cell and a second connection to a secondary cell. The UE determines a beam failure has occurred for one of the first connection or the second connection and initiates a beam failure recovery (BFR) operation. The BFR operation includes transmitting, to the primary cell, a BFR Medium Access Control (MAC) Control Element (CE).

公开(公告)号：US12256369B2

公开(公告)日：2025-03-18

申请号：US17441636

申请日：2020-08-05

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang

IPC: H04W72/0446 ,  H04L1/08 ,  H04L5/14 ,  H04W16/14

Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing transmission of nominal repetitions of data over an unlicensed spectrum. One or more nominal repetitions of data are to be transmitted by a user equipment (UE) over an unlicensed spectrum used for both uplink and downlink transmissions. The one or more nominal repetitions of the data are segmented into multiple actual repetitions of portions of the data. The UE identifies an orphan symbol in an actual repetition of the multiple actual repetitions of portions of the data, and determines a filler symbol to replace the orphan symbol in the actual repetition. In addition, the UE transmits the multiple actual repetitions including the filler symbol in replacement of the orphan symbol to a base station over the unlicensed spectrum.

公开(公告)号：US12245209B2

公开(公告)日：2025-03-04

申请号：US17439680

申请日：2020-10-16

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Dawei Zhang ,  Huaning Niu ,  Oghenekome Oteri ,  Chunhai Yao ,  Chunxuan Ye ,  Hong He ,  Sigen Ye ,  Weidong Yang ,  Yushu Zhang ,  Wei Zeng

IPC: H04W72/0453 ,  H04W72/02 ,  H04W72/23

Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing downlink and uplink scheduling in communication above 52.6 GHz. For example, some aspects of this disclosure relate to a base station. The base station includes a transceiver configured to communicate over a wireless network with a user equipment (UE) and a processor communicatively coupled to the transceiver. The processor determines that the communication between the base station and the UE is in a frequency range above 52.6 GHz. In response to the determination, the processor disables a frequency main resource assignment (FDRA), modifies a Resource Block Group (RBG) size, or modifies a Resource Indication Value (RIV) determination. The processor generates a Downlink Channel Indicator (DCI) based at least on one or more of the disabled FDRA, the modified RBG size, or the modified RIV determination. The processor transmits, using the transceiver, the DCI to the UE.

公开(公告)号：US12245191B2

公开(公告)日：2025-03-04

申请号：US17442539

申请日：2020-05-14

Applicant: Apple Inc.

Inventor： Hong He ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Jie Cui ,  Oghenekome Oteri ,  Wei Zeng ,  Weidong Yang ,  Yang Tang ,  Yuchul Kim ,  Yushu Zhang

IPC: H04W68/02 ,  H04W24/08 ,  H04W74/0816 ,  H04W76/28

Abstract: Some aspects of this disclosure include apparatuses and methods for implementing mechanisms for downlink control information between an electronic device (for example, a UE) and a network for cell detection and measurement. For example, some aspects relate to an electronic device including a transceiver and a processor communicatively coupled to the transceiver. The processor monitors one or more paging occasions within a discontinuous repetition cycle (DRX) and can make a determination of one or more paging occasions within the DRX to not monitor. Each paging occasion may include a transmission by the network of downlink control information for one or more paging messages.

公开(公告)号：US12244544B2

公开(公告)日：2025-03-04

申请号：US17787691

申请日：2021-09-03

Applicant: APPLE INC.

Inventor： Wei Zeng ,  Dawei Zhang ,  Seyed Ali Akbar Fakoorian ,  Yushu Zhang ,  Haitong Sun ,  Hong He ,  Chunhai Yao ,  Sigen Ye ,  Chunxuan Ye ,  Weidong Yang ,  Oghenekome Oteri

IPC: H04L5/14

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for signaling cross-division duplex configurations. One of the methods includes identifying, by a first device and for a first link with a second device, a switch in a first bandwidth part to a second bandwidth part for the first link, the first link associated with a second link having a third bandwidth part; determining, by the first device, whether a bandwidth band between the second bandwidth part and the third bandwidth part satisfies a threshold guard band; and selectively determining to maintain the third bandwidth part for the second link or to switch the third bandwidth part to a fourth bandwidth part for the second link using a result of the determination whether the bandwidth band between the second bandwidth part and the third bandwidth part satisfies the threshold guard band.