Positioning system, a network digital telephone handset to a telephone network, digital, and.Process for determining the position of a receiver in a mobile telephone network digital positioning system

摘要

"Positioning system, a network digital telephone handset to a telephone network, digital, and.Process for determining the position of a mobile positioning system receiver in a digital telephone network.The invention relates to determining the position of a mobile receiver 4 in a positioning system of digital telephone network.A first receiver 3 is at a known location and others are mobile.The process involves transmitting signals from a variety of sources 1, the transmission signals having a format.At least a portion which has a predetermined value or whose portion is repeated.The compensation of time of transmission signals received at each receiver 4 from a transmission source 1 relative to a reference clock of each receiver.It is determined by generating a reference signal locked to the reference clock.The reference signal has a format similar to that of the transmission signals and includes a portion identical to the predetermined values or repeated portion of the received signal.And compares the broadcasting signal received and the reference signal.The delay time between the respective signals received in the receivers 4, 5 is determined from its clearing time on, to thereby determine the position of the other receivers 4.