Patent ID: 8675755
Filing Date: 2014-03-18
Classification: H04L

Abstract:
1. A method comprising: demodulating a received signal that includes a plurality of user signals, the plurality of user signals including at least a first user signal corresponding to a first user and a second user signal corresponding to a second user, wherein the first user signal corresponds to first user data that has been modulated independently of second user data corresponding to the second user signal, respective user data in each of at least one of the first user signal or the second user signal is encoded with a respective finite state machine encoder having a respective number of states S demodulating the received signal includes calculating distances between (i) each transmit symbol in the received signal and (ii) expected joint symbol values, wherein each expected joint symbol value corresponds to user data for multiple users including the first user and the second user; and jointly decoding, with a finite state machine decoder, user data in the received signal including the first user data and the second user data based on the calculated distances, wherein the finite state machine decoder has S