METHOD AND SYSTEM FOR PROVIDING SCRAMBLED CODED MULTIPLE ACCESS (SCMA)

摘要

A multiple access scheme is described. A first bit stream is scrambled from a first terminal according to a first scrambling signature. A second bit stream is scrambled from a second terminal according to a second scrambling signature, wherein the first bit stream and the second bit stream are encoded using a low rate code. The first scrambling signature and the second scrambling signature are assigned, respectively, to the first terminal and the second terminal to provide a multiple access scheme.

主权项

1. A method comprising:
scrambling a first bit stream from a first terminal according to a first scrambling signature; and scrambling a second bit stream from a second terminal according to a second scrambling signature, wherein the first bit stream and the second bit stream are encoded using a low rate forward error correction (FEC) code, and wherein the use of the first scrambling signature for the first bit stream and the second scrambling signature for the second bit stream serves to distinguish the first bit stream of the first terminal from the second bit stream of the second terminal to provide a multiple access scheme.