US2011013715A1

5G,4G

Title

METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET

Application Number:

US20100840230

Publication Date:

20-01-2011

Current Assignee:

LG

Family ID:

Application Date:

20-07-2010

Publication Country:

US

Priority Date:

05-01-2007

Declaring Company:

Abstract  Abstract

A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset calculates the number of cyclic shifts per group according to the calculated distance and establishes the cyclic shift (CS)-applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence so that it can greatly reduce the number of the detection errors and the false alarm rate. And if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level the present invention can minimize the influence of a frequency offset on a high-mobility cell.

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

Implicitly disclosed patent

Basis patent

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