Huawei introduces coherent CDMA metro optical transmission solution

Huawei has launched a new coherent CDMA metro optical transmission solution and prototype, the company said.

By integrating WDM technology, the prototype supports direct coupling and transmission of up to 2560 nodes and flexible service rate configuration from 6.25 Gbit/s to 200 Gbit/s for single nodes, providing a total convergence capacity of 16 Tbit/s. This provides a new solution for future flattened metro optical transmission.

With the rapid development of services such as 4K video, cloud, and mobile Internet services, future metro networks must meet various requirements including flat architecture, adjustable rates, flexible services, unified bearer, quick service provisioning, and low latency.

Huawei´s coherent CDMA metro optical transmission prototype supports access of 32 nodes on a single wavelength, to allow the same wavelength to be shared by multiple nodes by allocating different orthogonal spreading codes to each node. Data of each node is recovered using the corresponding spreading codes on the receiver.

As a result, a 200 Gbit/s (32 x 6.25 Gbit/s) capacity from 32 nodes can be transmitted over a single wavelength. By integrating WDM technology, the solution supports access of 2560 nodes over 80 wavelengths in the C band, providing a total capacity of 16 Tbit/s.

Huawei provides global information and communications technology (ICT) solutions provider. Founded in 1987, Huawei is a private company fully owned by its employees.