Title:
マルチキャリア位相ベース定位のためのシステムおよび方法
Document Type and Number:
Japanese Patent JP7451823
Kind Code:
B2
Abstract:
A method for calculating a time-of-arrival of a multicarrier uplink signal includes: accessing a multicarrier reference signal including a subcarrier reference signal for each subcarrier frequency in a set of subcarrier frequencies; receiving the multicarrier uplink signal transmitted from a user device, the multicarrier uplink signal including a subcarrier uplink signal for each subcarrier frequency in the set of subcarrier frequencies; for each subcarrier frequency in the set of subcarrier frequencies, calculating a phase difference, in a set of phase differences, between the subcarrier reference signal for the subcarrier frequency and a subcarrier uplink signal for the subcarrier frequency; calculating a time-of-arrival of the multicarrier uplink signal at the transceiver based on the set of adjusted phase differences; and transmitting the time-of-arrival of the multicarrier uplink signal to a remote server.
Inventors:
Le, Jonathan
Chowdhury, Mainak
Kratz, Philip, A.
Chowdhury, Mainak
Kratz, Philip, A.
Application Number:
JP2023503161A
Publication Date:
March 18, 2024
Filing Date:
July 19, 2021
Export Citation:
Assignee:
Zainar, Inc.
International Classes:
G01S11/02; G01S5/06; G01S13/84
Domestic Patent References:
| JP2014513271A | ||||
| JP10239414A | ||||
| JP2019523864A |
Foreign References:
| WO2019051040A2 | ||||
| US20130293423 | ||||
| US20100240396 | ||||
| US20190253301 |
Attorney, Agent or Firm:
Kita Aoyama International Patent Attorney Corporation
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