Cellular coverage in HERE Map Attributes API v8

This map/layer contains the mobile Internet cell coverage and signal strength data for all road links, worldwide.

To get attribute definitions and example data, go to this URL:

https://smap.hereapi.com/1/doc/layer.html?region=CELLULARSIGNALWORLD&layer=CELL_SIGNALS_FC1&apiKey={YOUR_API_KEY}

Route Matching API supports routing with cellular coverage in the response as well as cellular coverage optimized routing. To see the data used and learn how to use it for routing, see the Cellular Coverage demo.
Compared to the HERE data product "Cellular Signals", the Map Attributes API layer is slightly condensed and aggregated, to better serve the use cases "route paths with minimum connectivity gaps" and "plan downloads during route paths with sufficient bandwidth/quality".

** Very short signal variations along road section (below 100 meter) are averaged out (so won’t create a gap). ** Signal strengths 1,2,3 (excellent,good,fair) are aggregated to just 3 (fair) meaning “good enough”, while 4, 5, 6 and stay separate (poor, no observation but expected, no coverage, observed).

Usage example:

If 2G/3G signal is enough, the plotted route goes through a forest. It's faster, but it doesn't have 4G coverage.

If 4G signal is required, the route must go through the city as it's the fastest route with 4G coverage.