Patent · US Expired

Frequency offset estimation for communication systems method and device for inter symbol interference

US6990156B2 · kind B2 · utility

2Cited by
2References
25Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 30, 2002
Grant dateJan 24, 2006
Priority date
Expiry dateMar 6, 2024

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L2027/0065
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A frequency offset estimation based on state-based differential accumulation and the device thereof are disclosed. The concept of the sate-based operation is introduced by mathematical derivations. The knowledge of received data symbols and timing is utilized. Then the detailed operations are also given by both equations and conceptual descriptions. It is unnecessary to estimate the channel jointly or concurrently, while the differential operation over the received samples of the same state is performed. Such operation is obviously much simpler and easier to implement in VLSI than all the other techniques.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.