公开(公告)号：US12166563B2

公开(公告)日：2024-12-10

申请号：US18476802

申请日：2023-09-28

Applicant: Apple Inc.

Inventor： Dhruv Khati ,  Shiva Krishna Narra ,  Sudhir K. Baghel ,  Sanjeevi Balasubramanian ,  Sebastian Balint Seeber ,  Anjaneyulu Maganti ,  Jeremiah Hsu ,  Venkateswara Rao Manepalli

IPC: H04B7/08 ,  G01S19/22 ,  G01S19/42

Abstract: Methods, devices, and apparatus to adapt operating parameters for satellite signal reception and transmission by a wireless device to mitigate effects of fading due to specular reflections are described herein. The wireless device measures received signal power levels and compares characteristics of the measurements over an observation duration to at least one fading criteria to determine whether to operate in a normal or adaptive mode. While operating in the adaptive mode, the wireless device alternates between high performance mode time periods and low performance mode time periods. The wireless device indicates to a ground station associated with the satellite in which operating mode the wireless device is operating via an uplink data message transmitted during a data cycle at the start of a high or low performance mode time period. The ground station schedules data transmissions accordingly during subsequent data cycles of the high or low performance mode time periods.

公开(公告)号：US20240147514A1

公开(公告)日：2024-05-02

申请号：US17770330

申请日：2021-05-08

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Oghenekome Oteri ,  Seyed Ali Akbar Fakoorian ,  Sudhir K. Baghel ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang

IPC: H04W72/542 ,  H04W72/56 ,  H04W74/0808

CPC classification number: H04W72/542 ,  H04W72/56 ,  H04W74/0825

Abstract: Techniques described herein may include new and enhanced solutions for several aspects of inter-UE communications. For example, techniques described herein may provide inter-UE coordination techniques for different types of resource sets, sensing operations for inter-UE communication, and how UEs involved in inter-UE communication may be determined. In additional, or alternative, examples, techniques described herein may provide solutions for post-collision schemes, including how certain resource sets may be applied, whether and how to jointly transmit post-collision and pre-collision indications, and how to determine the resources for post-collision indication.

公开(公告)号：US20240097740A1

公开(公告)日：2024-03-21

申请号：US17933239

申请日：2022-09-19

Applicant: Apple Inc.

Inventor： Sudhir K. Baghel ,  Seshu Tummala ,  Amol P. Bhatkar ,  Mehran T. Baghaei ,  Venkateswara Rao Manepalli ,  Nishant Pattanaik ,  Sudeep Bhattarai ,  Lohit Sarna ,  Jay P. Shah ,  Sebastian B. Seeber

IPC: H04B7/01 ,  H04W56/00 ,  H04W64/00

CPC classification number: H04B7/01 ,  H04W56/001 ,  H04W64/00

Abstract: Frequency spectrum of wireless transmission signals are allocated based on availability and regulatory requirements. To ensure transmission signals are within designated channel boundary, user equipment utilizes processing circuitry coupled to a transceiver to pre-compensate for estimated frequency shift at the time of transmissions. Certain guard bands are provided such that the actual transmission signals with the frequency pre-compensation are within the designated channel boundary. Additionally, or alternatively, the user equipment utilizes the processing circuitry to pre-compensate for estimated time shift based on a crystal drift using temperature measurement.

公开(公告)号：US20240031834A1

公开(公告)日：2024-01-25

申请号：US17871606

申请日：2022-07-22

Applicant: Apple Inc.

Inventor： Mehran T. Baghaei ,  Nishant Pattanaik ,  Sudhir K. Baghel ,  Lohit Sarna ,  Sudeep Bhattarai ,  Seshu Tummala ,  Venkateswara Rao Manepalli

IPC: H04W24/04 ,  H04W56/00 ,  H04B7/0408

CPC classification number: H04W24/04 ,  H04W56/001 ,  H04B7/0408

Abstract: An electronic device includes a transceiver and processing circuitry communicatively coupled to the transceiver and configured to transmit uplink signals to a secondary communication node in response to determining that an uplink beam of a primary communication node is non-functional while continuing to receive downlink signals from the primary communication node using a downlink beam. Using multi-beam coverage by multiple communication nodes provide more reliable communications for the electronic device when a beam of a communication node is non-functional.

公开(公告)号：US11843443B1

公开(公告)日：2023-12-12

申请号：US17235855

申请日：2021-04-20

Applicant: Apple Inc.

Inventor： Dhruv Khati ,  Shiva Krishna Narra ,  Sudhir K. Baghel ,  Sanjeevi Balasubramanian ,  Sebastian Balint Seeber ,  Anjaneyulu Maganti ,  Jeremiah Hsu ,  Venkateswara Rao Manepalli

IPC: H04B7/08 ,  G01S19/22 ,  G01S19/42

CPC classification number: H04B7/0894 ,  G01S19/22 ,  G01S19/428

Abstract: Methods, devices, and apparatus to adapt operating parameters for satellite signal reception and transmission by a wireless device to mitigate effects of fading due to specular reflections are described herein. The wireless device measures received signal power levels and compares characteristics of the measurements over an observation duration to at least one fading criteria to determine whether to operate in a normal or adaptive mode. While operating in the adaptive mode, the wireless device alternates between high performance mode time periods and low performance mode time periods. The wireless device indicates to a ground station associated with the satellite in which operating mode the wireless device is operating via an uplink data message transmitted during a data cycle at the start of a high or low performance mode time period. The ground station schedules data transmissions accordingly during subsequent data cycles of the high or low performance mode time periods.

公开(公告)号：US20250063603A1

公开(公告)日：2025-02-20

申请号：US18939255

申请日：2024-11-06

Applicant: Apple Inc.

Inventor： Chunxuan Ye ,  Zhibin Wu ,  Dawei Zhang ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Oghenekome Oteri ,  Sudhir K. Baghel ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang ,  Sigen Ye

IPC: H04W74/0808 ,  H04L1/08 ,  H04W72/25

Abstract: A receiving user equipment (UE) may be configured perform operations relating to sidelink communications with a transmitting UE. The receiving UE may establish a sidelink session with a transmitting UE, perform a local sensing, receive a Physical Sidelink Control Channel (PSCCH), a Physical Sidelink Shared Channel (PSSCH), and reserved multiple resources from the transmitting UE, whereby the transmitting UE reserves the reserved multiple resources. The receiving UE determines whether a coordination message is triggered and, in response to the coordination message being triggered, the receiving UE transmits the coordination message to the transmitting UE, the coordination message indicating whether a collision occurs among the reserved multiple resources.

公开(公告)号：US20240223261A1

公开(公告)日：2024-07-04

申请号：US18602958

申请日：2024-03-12

Applicant: Apple Inc.

Inventor： Sudhir K. Baghel ,  Sudeep Bhattarai ,  Amol P. Bhatkar ,  Seshu Tummala ,  Venkateswara Rao Manepalli ,  Mehran T. Baghaei ,  Lohit Sarna ,  Nishant Pattanaik ,  Jay P. Shah

IPC: H04B7/08 ,  H04W72/044 ,  H04W72/0446

CPC classification number: H04B7/088 ,  H04W72/0446 ,  H04W72/046

Abstract: User equipment includes one or more antennas, a receiver coupled to the one or more antennas, and processing circuitry coupled to the receiver and configured to cause the user equipment to receive downlink signals at each communication cycle using a predetermined beam in a beam time slot. Based on processed downlink signals and other relevant information the user equipment may determine a desired beam for the next communication cycle. If the desired beam is the same as the predetermined beam, the user equipment may continue using the predetermined beam at the next communication cycle. If the desired beam is different from the predetermined beam, the user equipment may switch to the desired beam at the next communication cycle. In this way, the user equipment may continue tracking a desired beam to maintain reliable data communications with a communication node.

公开(公告)号：US20240146399A1

公开(公告)日：2024-05-02

申请号：US17948065

申请日：2022-09-19

Applicant: Apple Inc.

Inventor： Sudeep Bhattarai ,  Lohit Sarna ,  Nishant Pattanaik ,  Seshu Tummala ,  Saurabh Deo ,  Sebastian B. Seeber ,  Venkateswara Rao Manepalli ,  Sudhir K. Baghel ,  Mehran T. Baghaei ,  Shahram Talakoub

IPC: H04B7/185 ,  H04B7/195

CPC classification number: H04B7/18513 ,  H04B7/195

Abstract: A communications system may include user equipment (UE) device, satellites, and a gateway. The UE and gateway may perform implicit handover in which the UE and gateway independently identify the same serving satellite using ephemeris data, without additional signaling overhead. The UE may also characterize its channel conditions. When insufficient, the UE may transmit an explicit handover message to the gateway via a different satellite visible to the UE. The explicit handover message may include a satellite identifier and a lock bit. The gateway may use the satellite identifier to convey wireless data with the UE via the different satellite during the next cycle. The gateway may use the lock bit to know how to perform handover away from the different cycle during subsequent cycles. In this way, the UE may direct handover, given that the gateway has no knowledge of the channel condition at the UE.