Patent ID: 8085704

Claim:
A method in a mobile station for reporting measurements on ranging signal received by the mobile station from satellites, said ranging signals each comprising a stream of data bits spread by a spreading code, said method including the steps of for at least one of the received ranging signals: synchronizing the mobile station to data bit edges in the stream of data bits, wherein the synchronizing further comprises identifying data bit edge positions modulo a data bit length; measuring, by the mobile station, a position in time modulo the data bit length for the stream of data bits with respect to a selected point in time, wherein said measuring comprises determining the position in time with respect to said selected point in time for an adjacent bit edge in the stream of data bits by registering a number of whole and fractional chips from said selected point in time until a next course/acquisition (C/A) code boundary and an integer number of C/A code periods between said selected point in time and a closest preceding navigation bit edge; and transmitting a signal including data representing said measured position in time.