Title:
ANGLE-OF-ARRIVAL POSITIONING SYSTEM FOR TRACKING OBJECTS
Document Type and Number:
Japanese Patent JP2020020801
Kind Code:
A
Abstract:
To provide a method and a system for mitigating the effects of RF energy reflections in RF-based identification and location-finding systems that are employing narrow-band ranging signals.SOLUTION: Systems and methods for determining UE locations within a wireless network by using reference signals of the wireless network are described. The disclosed systems and methods utilize a plurality of in-phase and quadrature (I/Q) samples generated from signals provided by receive channels associated with two or more antennas of the wireless system. Based on received reference signal parameters, the reference signal within the signals from each receive channel among the receive channels is identified. Based on the identified reference signal from each receive channel, an angle of arrival between a baseline of the two or more antennas and incident energy from the UE to the two or more antennas is determined. The angle of arrival is then used to calculate the location of the UE. The angle of arrival may be a horizontal angle of arrival and/or a vertical angle of arrival.SELECTED DRAWING: Figure 3B
Inventors:
TRUMAN PREVATT
Application Number:
JP2019166403A
Publication Date:
February 06, 2020
Filing Date:
September 12, 2019
Export Citation:
Assignee:
POLTE CORP
International Classes:
G01S5/04; H04W4/80; G01S7/02; H04B7/08; H04W4/029
Foreign References:
| WO2015116322A2 | 2015-08-06 | |||
| US6904079B2 | 2005-06-07 |
Attorney, Agent or Firm:
Takuji Yamada
Hiroshi Okabe
Hiroshi Okabe