InterDigital Inc (IDCC)

[Gamco]

United States Patent 8,995,554
Haghighat , et al. March 31, 2015

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Method and apparatus for reducing interference in space frequency block coding communication


Abstract
A method and apparatus of reducing interference in space frequency block coding (SFBC) communication are disclosed. SFBC encoding is performed on at least one pair of symbols. The symbols are assigned to subcarriers in accordance with a frequency assignment pattern assigned to a cell. Different frequency assignment patterns are assigned to neighboring cells. Cells in the network may be divided into a plurality of groups and a different frequency assignment pattern may be assigned to each group of cells. The frequency assignment pattern may be defined such that subcarriers mapped to a pair of symbols in one cell are interlaced to subcarriers mapped to a pair of symbols in a neighbor cell. Alternatively, the frequency assignment pattern may be defined such that subcarriers mapped to a pair of symbols in one cell are shifted in a neighbor cell.


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Inventors: Haghighat; Afshin (Ile-Bizard, CA), Li; Yingxue (San Diego, CA)
Applicant: Name City State Country Type

InterDigital Technology Corporation
Wilmington
DE
US

Assignee: InterDigital Technology Corporation (Wilmington, DE)

Family ID: 1000001008458
Appl. No.: 14/169,868
Filed: January 31, 2014

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Prior Publication Data

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Document Identifier Publication Date
US 20140146912 A1 May 29, 2014


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Related U.S. Patent Documents

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Application Number Filing Date Patent Number Issue Date
13532267 Jun 25, 2012 8670498
12117373 Jun 26, 2012 8208574
60916741 May 8, 2007


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Current U.S. Class: 375/267; 375/259; 375/260; 375/295; 375/299; 375/316; 375/347
Current CPC Class: H04L 27/28 (20130101); H04L 1/0606 (20130101); H04B 1/38 (20130101); H04L 5/0023 (20130101)
Current International Class: H04B 7/02 (20060101)
Field of Search: ;375/267,260,259,347,299,295,316

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