Likelihood of mobile device portal transition

A mobile device for using a probability of a portal transition, the mobile device comprising:

• at least one memory to store instructions;
• a receiver;
• and
• one or more processors to execute said instructions to:
• obtain an estimate of a location of said mobile device, the estimated location of said mobile device being in a first area identifiable by a first location context identifier;
• determine an indication of a probability that the mobile device subsequently transitions from said first area to a second area at a subsequent moment, said second area identifiable by a second location context identifier via a portal linking the first area and the second area, wherein said determination is based at least in part on a likelihood heat map;
• apply a threshold to said indication of said probability;
• and
• conditionally perform a scan at said receiver for signals transmitted by one or more transmitter devices corresponding to the second area responsive to said application of said threshold to the indication of the probability that the mobile device subsequently transitions to the second area via the portal.

A mobile device for using a probability of a portal transition, the mobile device comprising:

• means for obtaining an estimate of a location of said mobile device, the estimated location of said mobile device being in a first area identifiable by a first location context identifier;
• means for determining an indication of a probability that the mobile device subsequently transitions from said first area identifiable to a second area at a subsequent moment, said second area identifiable by a second location context identifier via a portal linking the first area and the second area, wherein said determination is based at least in part on a likelihood heat map;
• means for applying a threshold to said indication of said probability;
• and
• means for conditionally performing a scan for signals transmitted by one or more transmitter devices corresponding to the second area responsive to said application of said threshold to the indication of the probability that the mobile device subsequently transitions to the second area via the portal.

An article comprising:

• at least one non-transitory storage medium having stored thereon instructions executable by one or more processors of a mobile device to:
• obtain an estimate of a location of said mobile device, the estimated location of said mobile device being in a first area identifiable by a first location context identifier;
• determine an indication of a probability that a mobile device subsequently transitions from said first area to a second area at a subsequent moment, said second area identifiable by a second location context identifier via a portal linking the first area and the second area, wherein said determination is based at least in part on a likelihood heat map;
• apply a threshold to said indication of said probability;
• and
• conditionally perform a scan for signals transmitted by one or more transmitter devices corresponding to the second area responsive to said application of said threshold to the indication of the probability that the mobile device subsequently transitions to the second area via the portal.

A device for determining a heat map, the device comprising:

• at least one memory to store instructions;
• and
• one or more processors to execute said instructions to:
• access a non-transitory storage medium to obtain one or more features of a map of a first area identifiable by a first location context identifier;
• determine one or more indications of one or more probabilities of transitions from a first area identifiable by a first location context identifier to a second area identifiable by a second location context identifier, said transitions being at a subsequent moment and being via one or more portals, said determination being based, at least in part, on said one or more features of said map of the first area and one or more locations of the one or more portals and on a likelihood heat map,
• wherein the one or more indications of probabilities of transitions enable a determination of a particular probability that a mobile device transitions from the first area to the second area via a particular portal of the one or more portals based, at least partly, on a current position of the mobile device in the first area.