Code position modulation system and method for multiple user satellite communications

A non-multiplexing method of code position modulation multiple access (CPMMA) communications, the method comprising the steps of:

• defining a maximal length code (MLC) having "n" number of chips C.sub.0 through C.sub.n ;
• defining a time period having "n" number of subperiods t.sub.i beginning at times t.sub.0 through t.sub.n, each subperiod having at least one code chips;
• assigning said "n" subperiods to an "n" number of different user transmitters;
• transmitting for respective users said MLC in chip sequence such that a first chip of said MLC starts within said time period and within their assigned subperiods, wherein a correlation peak of each transmitter's code falls within an assigned subperiod as seen at a master/hub receiver and enabling a continuous sending of code from each transmitter with non-overlapping correlation peaks that are discriminable from one another;
• modulating for respective users the transmission of each MLC in chip sequence in respective subperiods such that a particular chip c.sub.m that begins in a particular subperiod is controlled by a data-to-be-transmitted, the modulation and transmitting being such that the c.sub.m through c.sub.n chip are immediately followed by the chips C.sub.0 through C.sub.m-1.