MEASUREMENTS FOR INDOOR NAVIGATION

摘要

A method of obtaining and using access point signal information includes: receiving signals at a mobile device from a first set of access points during a passive measurement; and performing a first active measurement at the mobile device for the first set of the access points, including: sending at least one first communication each sent toward a respective one of the access points of the first set; and receiving at least one second communication each corresponding to, and responsive to, one of the at least one first communication and received from a corresponding one of the access points of the first set; where the passive measurement and the first active measurement is each performed repeatedly with the first set of the access points being reestablished at each repeat performance of the passive measurement, and with the passive measurement being performed less often than the first active measurement.

主权项

1. A method of obtaining and using access point signal information, the method comprising:
performing a passive measurement at a mobile device for signals from access points, the mobile device receiving signals from a first set of the access points during the passive measurement; and performing a first active measurement at the mobile device for the first set of the access points, the first active measurement including:
sending at least one first communication, with each first communication being sent toward a respective one of the access points of the first set of the access points; andreceiving at least one second communication each of which corresponds to, and is responsive to, one of the at least one first communication and is received from a corresponding one of the access points of the first set of the access points; wherein the passive measurement and the first active measurement is each performed repeatedly with the first set of the access points being reestablished at each repeat performance of the passive measurement, and with the passive measurement being performed less often than the first active measurement.