Process for establishing communications between a first radio station and a second radio station and between a mobile station and a mobile station and a base station and positioning system to deduce on a mobile station, an approximation of at least one among distance and propagation delay

摘要

Patent of Invention: "PROCESSES FOR ESTABLISHING COMMUNICATIONS BETWEEN A FIRST RADIO STATION AND A SECOND RADIO STATION AND BETWEEN A MOBILE STATION AND A BASE STATION AND POSITION DETERMINATION SYSTEM TO DETECT A STIMULATION IN A STIMULATING STIMULATION, A STIMULATION IN A STIMULATING STIMULATION. WITHIN DISTANCE AND PROPAGATION DELAY ". In a mobile radiotelephone system employing TDMA or CDMA, mobile units (5, 7) must often determine the synchronization and approximate power required for transmissions to a base station. The information disseminated by base stations allows the mobile station to approximate its distance from each base station (1) based on a received average signal strength and thus determine the approximate location of the sector. The disseminated information may include the average radial distribution of MU signal strength versus MV distance. From the information disseminated, the mobile station (5, 7) determines the loss of propagation for a transfer to the base station and the appropriate energy level and synchronization for the transfers. Therefore, the mobile station (5, 7) transmits signals to the base station (1) at the given signal synchronization and at the determined energy level.