COMMUNICATION STATION, OPTICAL COMMUNICATION SYSTEM, DATA TRANSMISSION METHOD, AND STORAGE MEDIUM

Abstract

Provided are a communication station, an optical communication system, a data transmission method, and a storage medium. The communication station is a first station including: a first reconfigurable optical add-drop multiplexing ROADM device, including a first port used to connect a cable in a first direction of a network; a second ROADM device connected to the first ROADM device and including a second port which may be used to connect a cable in a second direction of the network being different from the first direction; an optical protection device connected to each of the first and second ROADM devices and used to control the first station to transmit communication with a second station for a corresponding service in the first direction corresponding to the first ROADM device, or to transmit communication with the second station for a corresponding service in the second direction corresponding to the second ROADM device.

Description

Claims

1. A communication station, where the communication station is a first station and comprises: a first reconfigurable optical add-drop multiplexing (ROADM) device which includes a first port being capable of connecting a cable in a first direction of a network;a second ROADM device connected to the first ROADM device, which includes a second port being capable of connecting a cable in a second direction of the network, wherein the second direction is different from the first direction; andan optical protection device whose number is consistent with a number of a service type transmitted by the communication station;wherein the optical protection device is respectively connected to the first ROADM device and the second ROADM device, and is used to control the first station to perform communication of corresponding service with a second station in the first direction corresponding to the first ROADM device, or to perform communication of the corresponding service with the second station in the second direction corresponding to the second ROADM device.

2. The communication station according to claim 1, wherein the optical protection device comprises a transceiver which comprises: a service optical signal processing module used to send and receive service optical signals; andan optical switch including an input end connected to the service optical signal processing module, and an output end connected to the first ROADM device or the second ROADM device.

3. The communication station according to claim 1, wherein the first station further comprises: an optical power detector respectively connected between the optical protection device and the first ROADM device and between the optical protection device and the second ROADM device, and used for detecting a service optical signal transmitted in the first direction and/or the service optical signal transmitted in the second direction, wherein the detection result of the optical power detector is used to determine whether the communication with the second station transmitted in the first direction or the communication with the second station transmitted in the second direction is normal; andthe optical protection device is configured to control the first station to transmit communication for performing the corresponding service with the second station in the second direction when the communication with the second station is transmitted in the first direction or, to control the first station to transmit the communication for performing the corresponding service with the second station in the first direction when the communication with the second station is transmitted in the second direction.

4. The communication station according to claim 1, wherein the first ROADM device and the second ROADM device respectively comprise a flexible grid optical wavelength selective switch (WSS); and the flexible grid WSSs are respectively connected to the optical protection device in the first station, and are used to dynamically adjust wavelength channel intervals to send and receive service optical signals of different wavelengths.

5. An optical communication system comprising: at least two communication stations, wherein the at least two communication stations comprise a first station, and the first station comprises: a first reconfigurable optical add-drop multiplexing (ROADM) device which includes a first port being capable of connecting a cable in a first direction of a network;a second ROADM device connected to the first ROADM device, which includes a second port being capable of connecting a cable in a second direction of the network, wherein the second direction is different from the first direction; andan optical protection device whose number is consistent with a number of a service type transmitted by the communication station;wherein the optical protection device is respectively connected to the first ROADM device and the second ROADM device, and is used to control the first station to perform communication of corresponding service with the second station in the first direction corresponding to the first ROADM device, or to perform communication of the corresponding service with the second station in the second direction corresponding to the second ROADM device;wherein the communication is capable of being performed between the two communication stations in a first direction or a second direction, and the second direction is different from the first direction.

6. The system according to claim 5, wherein a network topology of the optical communication system comprises a ring network structure; and the first direction is clockwise and the second direction is counterclockwise, or the first direction is counterclockwise and the second direction is clockwise.

7. The system according to claim 5, wherein a network topology of the optical communication system comprises a mesh network structure; and the first direction and the second direction correspond to different optical links between two stations communicating with each other.

8. A data transmission method applied to a first station, comprising: detecting whether a communication abnormality occurs when communication with a second station for a corresponding service is transmitted in a first direction corresponding to a first ROADM device included in the first station; andwhen a communication abnormality is detected, switching the communication to a second direction corresponding to a second ROADM device included in the first station to transmit the communication with the second station for the corresponding service.

9. The method according to claim 8, wherein when a communication abnormality is detected, switching the communication to the second direction corresponding to the second ROADM device included in the first station to transmit the communication with the second station for the corresponding service, comprising: when the communication abnormality is detected, switching, by an optical protection device in the first station corresponding to the communication service, the communication in the first direction corresponding to the first ROADM device to the second direction corresponding to the two ROADM devices included in the first station to transmit communication with the second station corresponding to the service.

10. The method according to claim 8, wherein the method further comprises: according to the communication service, adjusting a flexible grid optical wavelength selection switch WSS of the first ROADM device or of the second ROADM device in the first station, for performing communication with the second station by a service optical signal corresponding to the service wavelength.

11. (canceled)

12. The optical communication system according to claim 5, wherein the optical protection device comprises a transceiver which comprises: a service optical signal processing module used to send and receive service optical signals; andan optical switch including an input end connected to the service optical signal processing module, and an output end connected to the first ROADM device or the second ROADM device.

13. The optical communication system according to claim 5, wherein the first station further comprises: an optical power detector respectively connected between the optical protection device and the first ROADM device and between the optical protection device and the second ROADM device, and used for detecting a service optical signal transmitted in the first direction and/or the service optical signal transmitted in the second direction, wherein a detection result of the optical power detector is used to determine whether the communication with the second station transmitted in the first direction or the communication with the second station transmitted in the second direction is normal; andthe optical protection device is configured to control the first station to transmit communication for performing the corresponding service with the second station in the second direction when the communication with the second station is transmitted in the first direction or, to control the first station to transmit the communication for performing the corresponding service with the second station in the first direction when the communication with the second station is transmitted in the second direction.

14. The optical communication system according to claim 5, wherein the first ROADM device and the second ROADM device respectively comprise a flexible grid optical wavelength selective switch (WSS); and the flexible grid WSSs are respectively connected to the optical protection device in the first station, and are used to dynamically adjust wavelength channel intervals to send and receive service optical signals of different wavelengths.