US 11,054,277 B2
Bloom filter multiple traffic-aware route encoding
Daniel Rolf, Berlin (DE); and Raul Cajias, Berlin (DE)
Assigned to HERE Global B.V., Eindhoven (NL)
Filed by HERE Global B.V., Eindhoven (NL)
Filed on May 22, 2019, as Appl. No. 16/419,540.
Prior Publication US 2020/0370918 A1, Nov. 26, 2020
Int. Cl. G01C 21/36 (2006.01); G06F 16/22 (2019.01); G06F 16/29 (2019.01); G01C 21/20 (2006.01)
CPC G01C 21/3691 (2013.01) [G01C 21/20 (2013.01); G06F 16/2255 (2019.01); G06F 16/29 (2019.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
determining, by one or more processors, a route from a starting segment to a target segment based on map data of a digital map, the route comprising a list of route segments to be traveled from the starting segment to the target segment, the route determined by a network apparatus comprising a processor, a memory storing a network version of the digital map, and a communication interface;
identifying, by the one or more processors, adjacent segments to the route, wherein an adjacent segment is a segment of the digital map that intersects the route and is not a route segment;
determining, by the one or more processors, an expected traffic delay for each adjacent segment based on traffic data;
separating, by the one or more processors, the adjacent segments into a plurality of delay groups based on the corresponding expected traffic delays;
generating, by the one or more processors, delay bloom filters, wherein each delay bloom filter encodes a map version agnostic identifier for the adjacent segments of one of the plurality of delay groups; and
providing the delay bloom filters and information identifying the route such that a mobile apparatus receives the delay bloom filters and the information identifying the route.