What is the upstream frequency bandwidth if four DOCSIS 3.0 carriers of maximum bandwidth are bonded?

To determine the upstream frequency bandwidth when four DOCSIS 3.0 carriers are bonded, we first need to understand the frequency allocation for each carrier. In DOCSIS 3.0, each upstream carrier can support a maximum bandwidth of 6.4 MHz. When bonding multiple carriers together, the bandwidth is additive.

Thus, for four bonded carriers, the total upstream frequency bandwidth can be calculated by multiplying the number of carriers (4) by the maximum bandwidth of each carrier (6.4 MHz):

4 carriers x 6.4 MHz/carrier = 25.6 MHz.

This calculation shows that the upstream bandwidth for four bonded DOCSIS 3.0 carriers is indeed 25.6 MHz. This value is critical for network design and optimization in DOCSIS systems, as it directly influences the amount of data that can be transmitted upstream, which is essential for applications such as video uploads, online gaming, and other interactive services that require significant upstream capacity.