CHALLENGES
Since 5G TDD requires full timing support in every intermediate node all the way out to the base station, PTP cannot be used to deliver time over leased lines or infrastructure that is not PTP enabled. For most operators this is a fundamental challenge and may require significant CAPEX investments. Precision TimeNet delivers PTP over any infrastructure including leased lines.
PTP with partial timing support cannot cope with high delay variations and other network impairments which makes it unsuitable for providing the high accuracy required in 5G TDD. This forces operators to upgrade or replace all nodes in the network to enable full timing support driving cost and complexity. Precision TimeNet is designed to handle high delay variations and packet loss delivering accurate time within the 5G TDD requirements of ±1,5 µs absolute time error.
PTP with partial timing support cannot cope with asymmetries in the network. Asymmetries appear regularly in the network for instance during protection or routing changes. Therefore, it cannot be used over non-PTP enabled infrastructure or leased lines. Precision TimeNet is designed to detect and compensate for asymmetries in the network enabling accurate time delivery over any infrastructure.
Europe – Mobile operator
ÜMIT ÖNAL
CEO of Türk Telekom
