Network architecture, optical communication network and use of md-wss

Abstract

Provides network architecture for optical communication networks (optical communication networks configured according to the network architecture) and the use of MD‑WSS. The network includes at least a first ODN, an MD-WSS with a plurality of ports, and at least a first node. The first ODN (120) is connected to one (105) of the ports of the MD‑WSS (100), and the first node (110) is connected to the other (101) of the ports of the MD‑WSS (100), wherein the MD‑WSS The ports (101‑108) of (100) are paired such that the port (105) connected to the first ODN (120) is paired with the port (101) connected to the first node (110) such that the port (101) connected to the first ODN Signals originating at (120) are routed by default to the first node (110), and signals originating from the first node (110) are routed by default to the first ODN (120).

Description

technical field [0001] The present disclosure relates to wireless communications, and more particularly to optical communications and network architectures and the use of optical communications networks and multi-directional wavelength selective switches MD-WSS configured in accordance with the network architectures. Background technique [0002] With the deployment of small cells, an important challenge is to provide connectivity to small cell sites. Several operators consider fixed access infrastructure with its deep penetration as an important approach for providing connectivity to small cell sites. Current fixed access networks are mainly based on copper (xDSL, Digital Subscriber Line), but deployment of fiber via fiber to the home / building / curbside (FTTH / FTTB / FTTC) is becoming more common. This opens an interest in using optical technology for providing small cell connectivity. [0003] There are several scenarios on how fixed access infrastructure can be exploited fo...

AI Technical Summary

Problems solved by technology

The current optical access network provides limited flexibility for optimizing network resource utilization (such as implementing OLT sleep mode for optical line terminals)

Additionally, migrations and upgrades often cause service interruptions and require careful planning (due to limited possibilities for rerouting incoming traffic during service windows)

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