Sercomm small cell demonstrates clock synchronization with DOCSIS Timing Protocol
A critical challenge in providing small cell LTE/5G deployments with DOCSIS as a backhaul is clock synchronization. Time-Division LTE and advanced modes of 5G operation will not work without accurate clock synchronization. An accurate clock is also required for the BWR feature which helps reduce the latency on a DOCSIS mobile backhaul link by aligning the LTE upstream bandwidth scheduler with the DOCSIS upstream bandwidth scheduler.
A timing protocol, such as IEEE1588, over DOCSIS can be deployed to achieve clock synchronization. However, because DOCSIS has an asymmetrical upstream and downstream rate, the 1588 protocol “out of the box” will not work well because it assumes symmetry. Cisco helped lead a CableLabs® standardization effort called DTP (DOCSIS Timing Protocol) that solves the problem of transporting 1588 over a cable network.
Cisco, in partnership with Intel and Sercomm, has successfully demonstrated such a DTP system.
Furthermore, to show how a wireless system can be built over a DOCSIS backhaul, Cisco has partnered with Sercomm to connect a CBRS small cell to a DOCSIS backhaul.
www.sercomm.com
Cisco Blog: Cisco and Partners Present a Clock Synchronization for Small Cell DOCSIS Backhaul
If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :
