Two-Way Relay Preamble Design for Carrier Frequency Offset Estimation

Inventors: 
Patrick Fung Ho Wang, Sun Sumei, Ho Chin Keong
Patent number: 
182720 (2013-07-31)
Strategic Thrust: 
Communications
Description: 
This technology discloses a structure for the preambles used in two-way relay networks, and the means for their generation, by which the carrier frequency offsets (CFO) between nodes can be accurately estimated. By using a designated blockwise linear filter, the self-interference in the relayed training signal can be effectively mitigated, and a wide variety of estimators can in turn be applied for robust CFO estimation at low cost.