公开(公告)号：US20250028016A1

公开(公告)日：2025-01-23

申请号：US18770486

申请日：2024-07-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vishnu Vardhan Ratnam ,  Wei Sun ,  Bilal Sadiq ,  Hao Chen ,  Kyeong Jin Kim ,  Shunyao Wu ,  Boon Loong Ng ,  Jianzhong Zhang

IPC: G01S5/02 ,  G01S5/04 ,  G01S5/14

Abstract: A method includes obtaining range estimates and carrier phase estimates from each of multiple anchors. The method also includes, in response to determining that a trilateration technique is to be performed, (i) obtaining improved range estimates using the carrier phase estimates and (ii) determining a first location estimate of a target device using the trilateration technique and the improved range estimates. The method also includes, in response to determining that a triangulation technique is to be performed, (i) obtaining differential range estimates using the carrier phase estimates and (ii) determining a second location estimate of the target device using the triangulation technique and the differential range estimates. The method also includes combining the first location estimate and the second location estimate to determine an overall location estimate of the target device.

公开(公告)号：US20250076484A1

公开(公告)日：2025-03-06

申请号：US18808995

申请日：2024-08-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vishnu Vardhan Ratnam ,  Wei Sun ,  Bilal Sadiq ,  Hao Chen ,  Shunyao Wu ,  Boon Loong Ng ,  Jianzhong Zhang

IPC: G01S13/74

Abstract: Methods and apparatuses for negotiating a carrier-phase measurement interval in FTM protocol. A method of wireless communication performed by a first STA, the method comprising: negotiating, with a second STA, a duration of a time window for performing carrier-phase (CP) ranging; negotiating, with the second STA, a desired maximum speed of the first STA to be tracked; and negotiating, with the second STA, one or more inter-packet time parameters for use within the time window based on the desired maximum speed of the first STA to be tracked.

公开(公告)号：US20240430842A1

公开(公告)日：2024-12-26

申请号：US18523844

申请日：2023-11-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wei Sun ,  Shunyao Wu ,  Hao Chen ,  Vishnu Vardhan Ratnam ,  Jianzhong Zhang

IPC: H04W64/00 ,  H04B7/06 ,  H04W72/02 ,  H04W72/0453

Abstract: Methods and apparatuses for operating multiple carriers in a wireless communication system. A method for a first network entity comprises: identifying a plurality of carrier frequencies for measuring carrier phases from a set of predefined carrier frequencies; estimating, based on the measured carrier phase, a distance between the first network entity and a second network entity using a carrier ranging operation that is performed between the first network entity and the second network entity; selecting, based on the estimated distance, historical information, a variation of measured distance, and channel status information, at least one carrier frequency from the plurality of carrier frequencies to refine distance measurement; and transmitting, to and receive from the second network entity, signals over the selected at least one carrier frequency.