公开(公告)号：US20230040503A1

公开(公告)日：2023-02-09

申请号：US17968273

申请日：2022-10-18

Applicant: Aviat U.S., Inc.

Inventor： Tadej Markovic ,  Janez Mihelic

IPC: H04J3/06 ,  H04L7/033 ,  H04L27/26 ,  H04W56/00

Abstract: An example system comprising a first transceiver configured to receive a request airframe from a second transceiver over a wireless link, the request airframe including a first time indication indicating a first time TS1, a second time indication indicating a second time TS2 that the request airframe was received, generate a respond airframe and including a third time indication indicating a third time TS3 that the respond airframe is transmitted to the second transceiver, transmit the respond airframe to the second transceiver, provide a timestamp information request to second transceiver, receive a timestamp information response, the timestamp information response including a fourth time indication indicating a fourth time TS4, calculate a counter offset using the first time, second time, third time and fourth time as follows: counter ⁢ offset = ( TS ⁢ 1 + TS ⁢ 4 - TS ⁢ 3 - TS ⁢ 2 ) 2 , calculate a phase offset based on the counter offset, and correct a phase of the first transceiver.

公开(公告)号：US11476963B2

公开(公告)日：2022-10-18

申请号：US17121491

申请日：2020-12-14

Applicant: Aviat U.S., Inc.

Inventor： Tadej Markovic ,  Janez Mihelic

IPC: H04J3/06 ,  H04W56/00 ,  H04L7/033 ,  H04L27/26

Abstract: An example system comprising a first transceiver configured to receive a request airframe from a second transceiver over a wireless link, the request airframe including a first time indication indicating a first time TS1, a second time indication indicating a second time TS2 that the request airframe was received, generate a respond airframe and including a third time indication indicating a third time TS3 that the respond airframe is transmitted to the second transceiver, transmit the respond airframe to the second transceiver, provide a timestamp information request to second transceiver, receive a timestamp information response, the timestamp information response including a fourth time indication indicating a fourth time TS4, calculate a counter offset using the first time, second time, third time and fourth time as follows: counter ⁢ ⁢ offset = ( TS ⁢ ⁢ 1 + TS ⁢ ⁢ 4 - TS ⁢ ⁢ 3 - TS ⁢ ⁢ 2 ) 2 , calculate a phase offset based on the counter offset, and correct a phase of the first transceiver.

公开(公告)号：US20210152268A1

公开(公告)日：2021-05-20

申请号：US17121491

申请日：2020-12-14

Applicant: Aviat U.S., Inc.

Inventor： Tadej Markovic ,  Janez Mihelic

IPC: H04J3/06 ,  H04W56/00 ,  H04L7/033 ,  H04L27/26

Abstract: An example system comprising a first transceiver configured to receive a request airframe from a second transceiver over a wireless link, the request airframe including a first time indication indicating a first time TS1, a second time indication indicating a second time TS2 that the request airframe was received, generate a respond airframe and including a third time indication indicating a third time TS3 that the respond airframe is transmitted to the second transceiver, transmit the respond airframe to the second transceiver, provide a timestamp information request to second transceiver, receive a timestamp information response, the timestamp information response including a fourth time indication indicating a fourth time TS4, calculate a counter offset using the first time, second time, third time and fourth time as follows: counter   offset = ( TS   1 + TS   4 - TS   3 - TS   2 ) 2 , calculate a phase offset based on the counter offset, and correct a phase of the first transceiver.

公开(公告)号：US10855569B2

公开(公告)日：2020-12-01

申请号：US16566747

申请日：2019-09-10

Applicant: Aviat U.S., Inc.

Inventor： Janez Mihelic ,  Tadej Markovic

IPC: H04L12/26 ,  H04L12/855 ,  H04L27/26 ,  H04J3/06 ,  H04W56/00

Abstract: An example method comprises receiving, by a first PHY of a first transceiver, a timing packet, timestamping, by the first transceiver, the timing packet and providing the timing packet to a first intermediate node, determining a first offset between the first intermediate node and the first transceiver, updating a first field within the timing packet with the first offset between the first intermediate node and the first transceiver, the offset being in the direction of the second transceiver, receiving the timing packet by a second transceiver, the timing packet including the first field, information within the first field being at least based on the first offset, determining a second offset between the second transceiver and an intermediate node that provided the timing packet to the second transceiver and correcting a time of the second transceiver based on the information within the first field and the second offset.