Invention Grant
- Patent Title: Ultra wideband range extension
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Application No.: US16540301Application Date: 2019-08-14
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Publication No.: US11184810B2Publication Date: 2021-11-23
- Inventor: Vusthla Sunil Reddy , Alejandro J. Marquez , Indranil S. Sen , Manjit S. Walia , Peter M. Agboh , Shang-Te Yang , Xiaoming Yu
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel. P.C.
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04W64/00 ; H04W36/30 ; H04W76/15

Abstract:
Methods and apparatuses are presented to locate a wireless communication device. A target device may be out of range of a source device for normal ranging communications according to a first radio access technology (RAT), such as ultra wideband (UWB) communications. A source device may therefore modify communications according to the first RAT, to increase the transmit power, while removing the data payload. The target device may utilize the signal strength and angle of arrival of the modified communications to guide the user to move toward the source device, e.g., until the target device is within range to perform normal ranging communications. A second RAT, such as Bluetooth, may be used to communicate between the two devices while the target device is out of range of the first RAT. For example, the target device may use the second RAT to communicate to the source device to start/stop transmitting modified communications.
Public/Granted literature
- US20210051532A1 Ultra Wideband Range Extension Public/Granted day:2021-02-18
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