Terminal and power charching method thereof

Patent metadata

Field	Value
Publication number	US-2016112078-A1
Application number	US-201514885798-A
Country	US
Kind code	A1
Filing date	Oct 16, 2015
Priority date	Oct 17, 2014
Publication date	Apr 21, 2016
Grant date	—

Abstract

Disclosed herein are a terminal and a power charging method thereof. The terminal may include: an information transmitter generating a first signal corresponding to an uplink signal transmitted to a base station; and a power harvester receiving a self-interference signal generated by the first signal and charging power using the self-interference signal.

First claim

What is claimed is:

1 . A terminal comprising:
an information transmitter generating a first signal corresponding to an uplink signal transmitted to a base station; and a power harvester receiving a self-interference signal generated by the first signal and charging power using the self-interference signal.

2 . The terminal of claim 1 , further comprising:
a first band pass filter passing through a band corresponding to the uplink signal; a second band pass filter passing through a band corresponding to a downlink signal received from the base station; a distributor transmitting the first signal to the first band pass filter and transmitting the self-interference signal to the power harvester; and an information receiver decoding a signal passing through the second band pass filter.

3 . The terminal of claim 1 , further comprising:
an information receiver decoding a downlink signal received from the base station; a distributor transmitting the first signal through an antenna and transmitting the self-interference signal to the power harvester; and a switch switching between the antenna and the distributor or between the antenna and the information receiver.

4 . The terminal of claim 3 , wherein:
the terminal is operated in a time division half duplex scheme; when the terminal is in a transmitting mode, the switch connects between the antenna and the distributor; and when the terminal is in a receiving mode, the switch connects the antenna and the information receiver.

5 . The terminal of claim 1 , further comprising:
an information receiver decoding a downlink signal received from the base station; a distributor transmitting the first signal through an antenna and transmitting the self-interference signal to the power harvester; and a first switch switching between the distributor and the power harvester or between the distributor and the information receiver.

6 . The terminal of claim 5 , wherein:
when the terminal is operated in an in-band full duplex scheme, the first switch connects between the distributor and the information receiver; and when the terminal is operated in a time division half duplex scheme and is in a transmitting mode, the first switch connects between the distributor and the power harvester and the self-interference signal is input to the power harvester through the distributor.

7 . The terminal of claim 6 , wherein
when the terminal is operated in the time division half duplex scheme and is in a receiving mode, the first switch connects between the distributor and the receiver.

8 . The terminal of claim 6 , wherein:
when the terminal is within a first distance from the base station, the terminal is operated in the in-band full duplex scheme; and when the terminal is at a second distance farther than the first distance from the base station, the terminal is operated in the time division half duplex scheme.

9 . The terminal of claim 1 , wherein
the power harvester includes: a battery unit storing power; and an energy harvester converting the self-interference signal into a form chargeable in the battery unit and outputting the converted self-interference signal to the battery unit.

10 . The terminal of claim 9 , wherein
the energy harvester includes: a diode rectifying the self-interference signal; and a low pass filter passing through only a low frequency signal in a diode output.

11 . The terminal of claim 1 , wherein
the power harvester charges power using a power signal transmitted from the base station.

12 . A method for charging power by a terminal transmitting an uplink signal to a base station and receiving a downlink signal from the base station, comprising:
generating a first signal corresponding to the uplink signal; extracting a self-interference signal from the first signal; and charging power using the self-interference signal.

13 . The method of claim 12 , further comprising:
determining whether the terminal is within a predetermined distance from the base station, wherein when the terminal is within the predetermined distance, the terminal is operated in an in-band full duplex scheme; and when the terminal is not within the predetermined distance, the terminal is operated in a time division half duplex scheme.

14 . A terminal comprising:
an information transmitter generating a first signal corresponding to an uplink signal transmitted to a base station; an information receiver decoding a downlink signal received from the base station; a power harvester charging power using a self-interference signal generated by the first signal; and a switch switching between the antenna and the power harvester or between the antenna and the information receiver depending on a mode.

15 . The terminal of claim 14 , wherein
the mode includes a transmitting mode and a receiving mode, and when the terminal is operated in a time division half duplex scheme and is in a transmitting mode, the first switch connects between the antenna and the power harvester and the self-interference signal is input to the power harvester.

16 . The terminal of claim 14 , further comprising
a distributor positioned between the antenna and the switch and positioned between the antenna and the information transmitter, wherein the self-interference signal is input to the power harvester through the distributor and the switch.

17 . The terminal of claim 14 , wherein:
when the terminal is within a first distance from the base station, the terminal is operated in the in-band full duplex scheme; and when the terminal is at a second distance farther than the first distance from the base station, the terminal is operated in the time division half duplex scheme.

Assignees

• Korea Electronics Telecomm

Inventors

• Ju Hyung Sik
• Chang Kapseok
• Kim Seon-Ae

Classifications

• H04B1/525

  with means for reducing leakage of transmitter signal into the receiver · CPC title

• H02J50/20

  using microwaves or radio frequency waves · CPC title

• H02J7/34

  Parallel operation in networks using both storage and other DC sources, e.g. providing buffering (H02J7/14 takes precedence) · CPC title

• H02J7/025

  Electricity · mapped topic

• H04B1/10 Primary

  Means associated with receiver for limiting or suppressing noise or interference · CPC title