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.