Patent ID: 8751810
Filing Date: 2014-06-10
Classification: H04L

Abstract:
1. A method for establishing shared information, the method comprising: determining a first estimated characteristic of a communication channel between a first node and a second node based, at least in part, on at least one initial signal transmitted from the first node to the second node; transmitting a first signal from the first node to the second node, wherein at least a portion of the first signal is modulated with a first data sequence generated at the first node according to the first estimated characteristic; receiving a second signal at the first node from the second node, wherein at least a portion of the second signal is modulated with a second data sequence generated at the second node according to a second estimated characteristic of the communication channel, wherein the second estimated characteristic is determined based, at least in part, on at least one initial signal transmitted from the second node to the first node; and determining shared information at the first node based, at least in part, on at least a portion of the first data sequence and at least a portion of the second data sequence.