JP2009089439A

5G,4G

Title

SYNCHRONIZATION IN MULTI-CARRIER WAVE CDMA SYSTEM

Application Number:

JP20090005822

Publication Date:

23-04-2009

Current Assignee:

Family ID:

Application Date:

14-01-2009

Declaring Company:

Publication Country:

US

Priority Date:

17-10-2001

Title

SYNCHRONIZATION IN MULTI-CARRIER WAVE CDMA SYSTEM

Application Number:

JP20090005822

Family ID:

Publication Country:

US

Publication Date:

23-04-2009

Application Date:

14-01-2009

Priority Date:

17-10-2001

Current Assignee:

Declaring Company:

Abstract  Abstract

PROBLEM TO BE SOLVED: To provide a method and an apparatus for performing acquisition synchronization and cell selection within an MIMO-OFDM communication system.

SOLUTION: A coarse synchronization is performed for deciding a search window. Then fine synchronization is performed for measuring correlation between subsets of signal samples. A first signal sample among the signal samples exists within the search window and has a well-known value. The correlation is performed in a frequency area of a reception signal. In a multi output OFDM system each antenna of an OFDM transmitter has a unique well-known value. The well-known value is transmitted as a pair of continuous pilot symbol wherein each pair of pilot symbols is transmitted by the same subset as sub-carrier wave frequency within an OFDM frame.

COPYRIGHT: (C)2009JPO&INPIT

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.