Patent ID: 8098770
Filing Date: 2012-01-17
Classification: H04L

Abstract:
1. A method for estimating channel noise power in binary phase shift keying (BPSK) modulated telecommunication, the method comprising: receiving over the channel a first known signal, the first known signal having an identified functional form; after receiving the first known signal, formulating a channel transfer function estimate for the channel, the channel transfer function estimate being based on the first known signal and including a channel estimation error; receiving over the channel a second BPSK signal, the second BPSK signal including noise having a power; equalizing the second BPSK signal using the transfer function estimate; and estimating the second BPSK signal noise power, the noise power being substantially independent of the channel estimation error;  wherein: the estimating comprises combining the second BPSK signal and the channel transfer function estimate into a combination having a combination noise power that corresponds to the second BPSK signal noise power; if the combination noise power is substantially equal to zero: the combination noise power depends on: