Time-coherent global network

Details Time-coherent global network Time-coherent global network

H - Electricity

04

Q

H04Q 3/52 (2006.01) H04B 10/20 (2006.01) H04J 14/02 (2006.01)

Patent

CA 2676868

A network of global coverage, scalable to hundreds of petabits per second, comprises bufferless switch units each of dimension nxn, n > 1, arranged in a matrix of v columns and v rows, v > 1, interconnecting a maximum of vxn edge nodes. Each edge node has v upstream channels to v switch units in v different columns and v downstream channels from v switch units in v different rows. All upstream channels to a switch unit are time-locked to the switch unit, thus enabling coherent switching at the switch unit. The switch units are preferably fast-switching optical nodes. Alternatively, the switch units may comprise fast-switching optical nodes each of dimension mxm, arranged in a first µxµ matrix, and latent space switches each of dimension nxn, n > 1, arranged in a second vxv matrix, v > 1, where µxm=vxn. An edge node time locks to each optical node and each latent space switch to which it connects.

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