초록 ▼

The data communications systems disclosed herein accommodates terminals having different throughput capabilities by flexibly allocating cyclicly rotated phases of a common pseudo-noise (P/N) code. Throughput capabilities of the terminals are expressible in multiples of a preselected minimum throughp

The data communications systems disclosed herein accommodates terminals having different throughput capabilities by flexibly allocating cyclicly rotated phases of a common pseudo-noise (P/N) code. Throughput capabilities of the terminals are expressible in multiples of a preselected minimum throughput rate so that a single respective code phase is assigned to any terminal operating at the minimum throughput rate while a plurality of sequential consecutive phases are assigned to each terminal having a capability greater than the minimum throughput rate. One or more unassigned phases are provided between phases assigned to different terminals. Any terminal operating at the minimum throughput rate utilizes all time slot intervals in a predetermined frame interval while terminals of greater capability are assigned time slots in accordance with the amount of data traffic to be carried by that terminal and the number of code phases assigned thereto.

대표청구항 ▼

[ What is claimed is:] [1.] A method for providing data communications between terminals having different throughput capabilities, the throughput capabilities being expressible in multiples of a preselected minimum throughput rate, said method comprising:establishing a frame interval comprising a pl

[ What is claimed is:] [1.] A method for providing data communications between terminals having different throughput capabilities, the throughput capabilities being expressible in multiples of a preselected minimum throughput rate, said method comprising:establishing a frame interval comprising a plurality of time slot intervals, with each time slot interval comprising a predetermined plurality of symbol intervals, the number of symbol intervals being essentially equal to the number of symbols which can be transmitted or received during a time slot interval at said preselected minimum throughput rate;establishing at least one pseudo noise (P/N) code, said code comprising a predetermined multiplicity of chips, said code being usable by cyclic rotation in each bit interval at a number of different phases corresponding to said predetermined multiplicity;assigning a single respective phase to any terminal operating at said minimum throughput rate;assigning a plurality of sequential consecutive phases to terminals having capabilities greater than said minimum throughput rate; andassigning, to each terminal of capability greater than said minimum throughput, a number of time slots in accordance with the amount of data traffic to be carried by that terminal and the number of code phases assigned to that terminal, any terminals operating at said preselected minimum throughput rate utilizing all time slots.