Device control method, device, and communication system

Patent metadata

Field	Value
Publication number	US-12316381-B2
Application number	US-202218074869-A
Country	US
Kind code	B2
Filing date	Dec 5, 2022
Priority date	Jun 4, 2020
Publication date	May 27, 2025
Grant date	May 27, 2025

Abstract

A communication system includes a first device and a second device connected through an electro-optical composite cable. The electro-optical composite cable includes an optical fiber and a power supply cable. The optical fiber is used to transmit a data signal. The power supply cable is used to transmit a direct current. The first device is configured to send a first alternating-current signal to the second device through the power supply cable. The second device is configured to switch a running status based on the first alternating-current signal.

First claim

What is claimed is:

1. A communication device comprising:
an optical port connected to an optical fiber of an electro-optical composite cable, the optical fiber configured to transmit a data signal; and
an electrical port configured to connect to a power supply cable of the electro-optical composite cable, the power supply cable configured to transmit a direct current,
wherein the communication device is configured to send a first alternating-current signal to a second device through the power supply cable, and wherein the first alternating-current signal indicates to the second device to switch a running status.

2. The communication device of claim 1 , wherein the communication device is further configured to:
receive, through the power supply cable, a second alternating-current signal from the second device, wherein the second alternating-current signal indicates a current running status of the second device; and
generate the first alternating-current signal based on the current running status.

3. The communication device of claim 2 , wherein the communication device is further configured to send a third alternating-current signal to the second device through the power supply cable, and wherein the third alternating-current signal enables querying for the current running status of the second device.

4. The communication device of claim 3 , wherein the first alternating-current signal, the second alternating-current signal, and the third alternating-current signal comply with a serial physical interface standard.

5. The communication device of claim 3 , wherein waveforms of the first alternating-current signal, the second alternating-current signal, and the third alternating-current signal are different from each other.

6. A communication device comprising:
an optical port connected to an optical fiber of an electro-optical composite cable, the optical fiber configured to transmit a data signal; and
an electrical port configured to connect to a power supply cable of the electro-optical composite cable, the power supply cable configured to transmit a direct current, and wherein the communication device is configured to:
receive, through the power supply cable, a first alternating-current signal from a first device; and
switch a running status in response to receiving the first alternating-current signal.

7. The communication device of claim 6 , further configured to send a second alternating-current signal to the first device through the power supply cable, and wherein the second alternating-current signal indicates a current running status of the communication device.

8. The communication device of claim 7 , further configured to receive, through the power supply cable, a third alternating-current signal from the first device, wherein the third alternating-current signal enables querying for the current running status of the communication device.

9. The communication device of claim 8 , further configured to generate the second alternating-current signal based on the third alternating-current signal.

10. The communication device of claim 8 , wherein the first alternating-current signal, the second alternating-current signal, and the third alternating-current signal comply with a serial physical interface standard.

11. The communication device of claim 8 , wherein waveforms of the first alternating-current signal, the second alternating-current signal, and the third alternating-current signal are different from each other.

12. The communication device of claim 8 , further comprising:
a plurality of power-consuming devices; and
a power management circuit configured to:
connect to the power supply cable and at least a part of the plurality of power-consuming devices;
continuously run in a power-on state before and after the communication device switches the running status;
the direct current and the first alternating-current signal transmitted on the power supply cable; and
supply power to at least the part of power-consuming devices or forbid supplying power to at least the part of power-consuming devices based on the first alternating-current signal to switch the running status of the communication device.

13. The communication device of claim 12 , wherein the at least the part of power-consuming devices comprises the optical port.

14. A device control method implemented by a first device, the device control method comprising:
sending a first alternating-current signal to a second device through a power supply cable of an electro-optical composite cable, the power supply cable configured to transmit a direct current and wherein the first alternating-current signal indicates to the second device to switch a running status.

15. The device control method of claim 14 , further comprising transmitting a data signal over an optical fiber of the electro-optical composite cable.

16. The device control method of claim 15 , further comprising receiving, through the power supply cable, a second alternating-current signal from the second device, wherein the second alternating-current signal indicates a current running status of the second device.

17. The device control method of claim 16 , further comprising generating the first alternating-current signal based on the current running status.

18. The device control method of claim 17 , further comprising sending a third alternating-current signal to the second device through the power supply cable, and wherein the third alternating-current signal enables querying for the current running status of the second device.

19. The device control method of claim 18 , wherein the first alternating-current signal, the second alternating-current signal, and the third alternating-current signal comply with a serial physical interface standard.

20. The device control method of claim 19 , wherein waveforms of the first alternating-current signal, the second alternating-current signal, and the third alternating-current signal are different from each other.

Assignees

• Huawei Tech Co Ltd

Inventors

• Lu Qing
• Yao Changxin
• Gu Chao
• Xiang Jian
• Fu Shiyong

Classifications

• H04B10/564

  Power control · CPC title

• H04B10/808

  Electrical power feeding of an optical transmission system · CPC title

• H04B10/25759 Primary

  Details of the reception of RF signal or the optical conversion before the optical fibre · CPC title

• H04L12/10 Primary

  Current supply arrangements · CPC title