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Assisted Partial Timing Support application brochure cover

Assisted Partial Timing Support

In order to overcome phase synchronization challenges in radio access networks, Assisted Partial Timing Support (APTS) was developed as a new concept integrating the benefits of GNSS- and network-based timing distribution. The main idea behind this approach is using GNSS as the primary time reference at cell site locations or at an aggregation point close to the cell sites, complemented by network-based timing distribution to assist and maintain the time base during holdover periods when GNSS tracking is not available. Precise and accurate clock behavior during holdover periods longer than 72 hours is consequently assured, significantly reducing the challenge of network operations.