Information processing device, information processing system, terminal device, and information processing method

Patent metadata

Field	Value
Publication number	US-2022190885-A1
Application number	US-201917598882-A
Country	US
Kind code	A1
Filing date	Apr 17, 2019
Priority date	Apr 17, 2019
Publication date	Jun 16, 2022
Grant date	—

Abstract

To reduce an influence of errors caused by a hardware configuration of an antenna device in controlling directivity of a radio signal in a more preferable manner.An information processing device includes a generation unit that generates control information for controlling directivity of a radio signal transmitted from an antenna device including a plurality of antenna elements, in which the generation unit acquires first information according to a measurement result of a phase of a radio signal transmitted from a first antenna element among the plurality of antenna elements, and second information according to a measurement result of a relative deviation between the phase of the radio signal transmitted from the first antenna element and a phase of a radio signal transmitted from a second antenna element different from the first antenna element, and generates the control information based on the first information and the second information.

First claim

1 . An information processing device, comprising:
a generation unit that generates control information for controlling directivity of a radio signal transmitted from an antenna device including a plurality of antenna elements, wherein the generation unit acquires first information according to a measurement result of a phase of a radio signal transmitted from a first antenna element among the plurality of antenna elements, and second information according to a measurement result of a relative deviation between the phase of the radio signal transmitted from the first antenna element and a phase of a radio signal transmitted from a second antenna element different from the first antenna element, and generates the control information based on the first information and the second information.

2 . The information processing device according to claim 1 , wherein
the first information includes information according to a measurement result of an amplitude of the radio signal transmitted from the first antenna element, and the second information includes information according to a measurement result of a relative deviation between the amplitude of the radio signal transmitted from the first antenna element and an amplitude of the radio signal transmitted from the second antenna element.

3 . The information processing device according to claim 1 , wherein the control information is generated based on the first information and the second information acquired for each attitude of the antenna device.

4 . The information processing device according to claim 1 , wherein the generation unit recognizes a timing at which a terminal device including the antenna device causing the antenna device to transmit the radio signal to the antenna device based on information notified from a communication device configured to be able to communicate with the terminal device.

5 . An information processing system, comprising:
a terminal device including an antenna device that includes a plurality of antenna elements; and an information processing device, which generates control information for controlling directivity of a radio signal by the antenna device, wherein the information processing device acquires first information according to a measurement result of a phase of a radio signal transmitted from a first antenna element among the plurality of antenna elements, and second information according to a measurement result of a relative deviation between the phase of the radio signal transmitted from the first antenna element and a phase of a radio signal transmitted from a second antenna element different from the first antenna element, and generates the control information based on the first information and the second information.

6 . The information processing system according to claim 5 , wherein
the first information includes information according to a measurement result of an amplitude of the radio signal transmitted from the first antenna element, and the second information includes information according to a measurement result of a relative deviation between the amplitude of the radio signal transmitted from the first antenna element and an amplitude of the radio signal transmitted from the second antenna element.

7 . The information processing system according to claim 5 , further comprising:
a communication device wirelessly communicating with the terminal device using a frequency band different from a frequency band in which the radio signal is transmitted, wherein the terminal device controls the transmission of the radio signal based on a control signal transmitted from the communication device.

8 . The information processing system according to claim 7 , wherein the terminal device corrects a frequency shift of the radio signal based on the control signal.

9 . The information processing system according to claim 7 , wherein
the communication device transmits a control signal to the terminal device, and notifies the information processing device of information on the control signal, the terminal device controls a transmission timing of the radio signal based on the control signal, and the information processing device recognizes the transmission timing based on the information on the control signal.

10 . The information processing system according to claim 5 , further comprising:
an attitude control device that controls an attitude of the terminal device, wherein the control information is generated based on the first information and the second information acquired for each attitude of the antenna device according to the attitude of the terminal device.

11 . The information processing system according to claim 5 , wherein
the terminal device includes the plurality of antenna devices, and the control information is generated based on the first information and the second information acquired for each of the plurality of antenna devices.

12 . A terminal device, comprising:
an antenna device including a plurality of antenna elements, and a control unit that controls directivity of a radio signal transmitted from the antenna device based on control information generated in advance, wherein the control information is generated based on first information according to a measurement result of a phase of a radio signal transmitted from a first antenna element among the plurality of antenna elements, and second information according to a measurement result of a relative deviation between the phase of the radio signal transmitted from the first antenna element and a phase of a radio signal transmitted from a second antenna element different from the first antenna element.

13 . The terminal device according to claim 12 , wherein
the first information includes information according to a measurement result of an amplitude of the radio signal transmitted from the first antenna element, and the second information includes information according to a measurement result of a relative deviation between the amplitude of the radio signal transmitted from the first antenna element and an amplitude of the radio signal transmitted from the second antenna element.

14 . An information processing method, by a computer, comprising:
acquiring first information according to a measurement result of a phase of a radio signal transmitted from a first antenna element among a plurality of antenna elements included in an antenna device, and second information according to a measurement result of a relative deviation between the phase of the radio signal transmitted from the first antenna element and a phase of a radio signal transmitted from a second antenna element different from the first antenna element; and generating control information for controlling directivity of a radio signal transmitted from the antenna device based on the first information and the second information.

Assignees

• Sony Group Corp

Inventors

• Nakayama Takashi

Classifications

• H04B7/06952

  Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping · CPC title

• H04B7/0617 Primary

  for beam forming · CPC title

• H04B17/12

  of transmit antennas, e.g. of the amplitude or phase · CPC title

• H04B7/06

  at the transmitting station · CPC title

• G01R29/105

  using anechoic chambers; Chambers or open field sites used therefor (test sites used for measuring on other objects than aerials G01R29/0828; wave absorbing devices H01Q17/00) · CPC title