Radio-locating process of a ground station mobile station in a mobile communication system in which a ground station communicates with mobile stations

摘要

"RADIO-LOCATION PROCESS OF A MOBILE EARTH STATION STATION IN A MOBILE COMMUNICATION SYSTEM IN WHICH A MOBILE STATION COMMUNICATION STATION". A radio-locating process assigns a single digital address to mobile stations (12) with each single digital address being mapped to an orthogonal signal set that is then transmitted to all mobile stations (12). Each mobile station 12 then correlates an orthogonal signal function received against an orthogonal function corresponding to its address. More particularly, each orthogonal signal set comprises a binary orthogonal signal set such as a Rademacher - Walsh function set. Other well-known orthogonal function sets may be employed. For example, an m bit address can be divided into binary sequences g and each sequence is then uniquely mapped to orthogonal functions of power of 2 to m / g.