Qualcomm Incorporated

Varun Amar Reddy

Krishna Kiran Mukkavilli

Sony Akkarakaran

Alexandros Manolakos

Pooria Pakrooh

Bala Ramasamy

Le Nguyen Luong

Systems and techniques are described herein for extended reality. For instance, a method for extended reality is provided. The method may include providing common virtual content for display at a first device, the common virtual content viewable at a second device; receiving, at the first device, a radio-frequency (RF) signal from the second device; making one or more measurements of the RF signal; determining relative-position information associated with the first device and the second device based on the one or more measurements; determining that a relative-position condition is satisfied based on the relative-position information; and modifying the common virtual content for display by at least the first device based on the relative-position condition being satisfied.

Multi-user extended-reality content

This disclosure provides systems, methods, and devices for wireless communication that support enhanced ESL position determination and ESL position based notifications. In a first aspect, a method of wireless communication includes obtaining first position information for an asset of one or more assets associated with an electronic shelf label system based on first wireless information, and the first position information is associated with a first time. The method also includes obtaining second position information for the asset based on second wireless information, and the second position information is associated with a second time. The method further includes determining a notification for the asset based on the first position information, the second position information, the first time, and the second time. Other aspects and features are also claimed and described.

Electronic shelf label (ESL) position based notifications

This disclosure provides systems, methods, and devices for Electronic Shelf Label (ESL) systems that support positioning of ESL devices. In a first aspect, a method includes: determining known positions of a first subset of ESL devices; receiving positioning measurements for each ESL device in a second subset of ESL devices; estimating a first position of each ESL device in the second subset based on the positioning measurements received for that ESL device and the known positions of the first subset; determining a positioning error associated with the first position of each ESL device in the second subset; and estimating a second position of each ESL device in the second subset based on the positioning error and additional positioning measurements received for that ESL device. Other aspects and features are also claimed and described.

Self-positioning of electronic shelf label (ESL) devices through inter-ESL links

In some implementations, a current synchronization reference anchor for the group of RF positioning anchors may obtain metric information from each radio frequency (RF) positioning anchor of the group of RF positioning anchors. The current synchronization reference anchor may select the new synchronization reference anchor from the group of RF positioning anchors based at least in part on the metric information.

Distributed time synchronization for time difference of arrival (TDOA) using ultra-wideband (UWB)

Techniques are provided for authenticating a user based on ranging and biometric information. An example method for transmitting a ranging signal from a mobile device includes receiving biometric information from a user with the mobile device, generating a ranging signal including an indication of the biometric information with the mobile device, and transmitting the ranging signal with the mobile device.

Ranging with biometric information

In some implementations, a first ultra-wideband (UWB) device may determine a respective time offset for each scrambled timestamp sequence (STS) in a series of STS used for ranging in a UWB ranging session between the first UWB device and the second UWB device, wherein the respective time offset for each STS in the series of STS is determined in accordance with time offset information shared between the first UWB device and the second UWB device. The first UWB device may transmit the series of STS via UWB radio frequency (RF) signals during the UWB ranging session, wherein each STS in the series of STS is transmitted with the respective time offset.

Time offsets in ultra-wideband (UWB) ranging

In some implementations, a ultra-wideband (UWB) device comprises a Global Anchor for a network of UWB anchors having a plurality of clusters and initiator anchors (Init-Anchors). The Global Anchor may obtain metric information comprising a centrality metric value of each Init-Anchor from information communicated to the Global-Anchor in a first control phase. The Global Anchor may determine a slot schedule for a second control phase, wherein: determining the slot schedule is based on the centrality metric values of the plurality of Init-Anchors; the slot schedule comprises an allocation of time slots of the second control phase among the plurality of Init-Anchors for wireless radio frequency (RF) communication; and the allocation of time slots includes a first set of time slots for upstream communication followed by a second set of time slots for downstream communication. The Global Anchor may send the slot schedule to an Init-Anchor of the plurality of Init-Anchors.

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San Diego, CA, United States of America

Varun Amar Reddy