公开(公告)号：US20220390585A1

公开(公告)日：2022-12-08

申请号：US17821251

申请日：2022-08-22

Applicant: Apple Inc.

Inventor： Ayman NAGUIB ,  Robert BRUMLEY ,  Robert GOLSHAN

IPC: G01S13/76 ,  H04W74/06

Abstract: Methods performed by a first device. The methods include transmitting a first ranging poll to a plurality of second devices, receiving a polling response message from each of at least a first subset of the second devices, determining a propagation delay for each of the received polling response messages and determining a distance to each of the first subset of the second devices based on at least the respective propagation delays. The methods further include receiving a ranging poll from a second device, wherein the ranging poll is one of a multicast transmission or a broadcast transmission, determining a type of response to be transmitted to the second device based on at least a capability of the first device and transmitting a response of the determined type to the second device.

公开(公告)号：US20250088834A1

公开(公告)日：2025-03-13

申请号：US18826578

申请日：2024-09-06

Applicant: Apple Inc.

Inventor： Vignesh Babu MOORTHY ,  Andy WAGNER ,  Michelle Julia NG ,  Qiang CHEN ,  Richard ONG ,  Robert W. BRUMLEY ,  Robert GOLSHAN ,  Yann LY-GAGNON

IPC: H04W8/00 ,  H04W4/02

Abstract: An apparatus configured to initiate an operation to locate a target device, generate, for transmission to the target device, Bluetooth discovery signals for detecting a proximity of the target device, generate, for transmission to the target device at substantially a same time as the Bluetooth discovery signals, a discovery message via a network connection, detect a Bluetooth discovery response or a response to the discovery message from the target device and trigger an ultra-wideband (UWB) ranging operation based on detection of the Bluetooth discovery response or response to the discovery message.

公开(公告)号：US20240073856A1

公开(公告)日：2024-02-29

申请号：US18212550

申请日：2023-06-21

Applicant: Apple Inc.

Inventor： Jinjing JIANG ,  Robert GOLSHAN ,  Yong LIU ,  Alexander KREBS ,  Lochan VERMA ,  Xiliang LUO ,  Su Khiong YONG

IPC: H04W64/00 ,  H04L5/00 ,  H04W24/10

CPC classification number: H04W64/003 ,  H04L5/0048 ,  H04W24/10

Abstract: Embodiments are disclosed for one-to-many and many-to-many ranging using narrowband assisted (NBA)-multi-millisecond (MMS) ultra wideband (UWB) protocols. Some embodiments include an initiator device that communicates with many responder devices. For example, the initiator device can transmit a control/initialization poll message via NB signaling that identifies a ranging cycle, and transmit a first set of MMS segments corresponding to the control/initialization poll message. The initiator device can receive a plurality of report frames from two or more responder devices via NB signaling subsequent to transmitting the first set of MMS segments, and transmit within the ranging cycle, a ranging results report message based at least on the plurality of report frames via narrowband signaling.