Electronic device and method for indoor positioning

Patent metadata

Field	Value
Publication number	US-2021376891-A1
Application number	US-202017014424-A
Country	US
Kind code	A1
Filing date	Sep 8, 2020
Priority date	Jun 1, 2020
Publication date	Dec 2, 2021
Grant date	—

Abstract

An electronic device for indoor positioning includes an array antenna and a processor. The array antenna includes a plurality of antenna units. The array antenna receives a wireless signal transmitted from user equipment. Each of the antenna units receives the reception parameters of the wireless signal. The processor executes the following tasks: dividing the antenna units into a plurality of groups; combining the reception parameters of the antenna units included in each of the groups to generate a reception parameter matrix; and calculating a plurality of angles of arrival (AOA) from the UE to the plurality of the groups according to the reception parameter matrix.

First claim

What is claimed is:

1 . An electronic device, for indoor positioning, comprising:
an array antenna, comprising a plurality of antenna units, receiving a wireless signal transmitted from user equipment (UE); wherein each of the antenna units receives reception parameters of the wireless signal; a processor, configured to execute the following tasks: dividing the antenna units into a plurality of groups; combining the reception parameters received by the antenna units included in each of the groups to generate a reception parameter matrix; providing a multiple signal classification (MUSIC) module; and calculating a plurality of angles of arrival (AOA) from the UE to the plurality of the groups according to the reception parameter matrix.

2 . The electronic device as claimed in claim 1 , wherein the processor further executes the following task:
filtering the angles of arrival to remove the angles of arrival that suffer multipath interference.

3 . The electronic device as claimed in claim 1 , wherein the processor divides the antenna units in the same row of the array antenna into the same group, and divides the antenna units in the same column of the array antenna into the same group.

4 . The electronic device as claimed in claim 1 , wherein status data of the user equipment are included on the wireless signal; the processor further executes the following task:
determining whether the user equipment is in a stationary state or in a moving state according to the status data.

5 . The electronic device as claimed in claim 4 , wherein the processor combines the reception parameters of the antenna units included in each of the groups to generate the reception parameter matrix according to the stationary state or the moving state of the user equipment.

6 . A method for indoor positioning, applicable to an electronic device comprising an array antenna and a processor, wherein the array antenna comprises a plurality of antenna units, the method comprising:
receiving a wireless signal transmitted from user equipment (UE), wherein each of the antenna units receives the reception parameters of the wireless signal; dividing the antenna units into a plurality of groups; combining the reception parameters of the antenna units included in each of the groups to generate a reception parameter matrix; calculating a plurality of angles of arrival (AOA) from the UE to the plurality of the groups according to the reception parameter matrix.

7 . The method as claimed in claim 6 , wherein dividing the antenna units into the plurality of groups comprises dividing the antenna units in the same row of the array antenna into the same group, and dividing the antenna units in the same column of the array antenna into the same group.

8 . The method as claimed in claim 6 , the method further comprising:
filtering the angles of arrival to remove the angles of arrival that suffer from multipath interference.

9 . The method as claimed in claim 6 , wherein status data of the user equipment are included on the wireless signal; wherein the method further comprises:
determining whether the user equipment is in a stationary state or a moving state according to the status data.

10 . The method as claimed in claim 9 , the method further comprising:
combining the reception parameters of the antenna units included in each of the groups to generate the reception parameter matrix according to the stationary state or the moving state of the user equipment.

Assignees

• Quanta Comp Inc

Inventors

• Tseng Cheng-Yang
• Kao Po-Shan
• Tsao Jia-Yang
• Chang Yan-Cheng

Classifications

• G01C21/206

  specially adapted for indoor navigation · CPC title

• G01S5/04 Primary

  Position of source determined by a plurality of spaced direction-finders · CPC title

• H01Q21/065 Primary

  Patch antenna array · CPC title

• H04B7/086

  using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming · CPC title

• H01Q3/2605

  Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays · CPC title