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Methods and arrangements in a wireless communication system for producing signal structure with cyclic prefix
Ericsson Research, Isafjordsgatan 14E, 164 93 Kista, Sweden.
2008 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

NOVELTY - The processing method involves transmitting a first symbol of sequence preceded by first cyclic-prefix. A second symbol of the sequence preceded by a second cyclic-prefix is transmitted. The second symbol comprises the samples of the first symbol shifted so that the last sample of the first symbol and the first sample of the second cyclic prefix are cyclically consecutive. USE - Processing method for producing signal structure with cyclic prefix in wireless communication system. ADVANTAGE - Allows handling of very large signal delay spreads in any system using cyclic-prefix insertion. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a transmitting unit; and (2) a receiving unit. DESCRIPTION OF DRAWING(S) - The drawing shows the schematic diagram of the placement of two Fast Fourier transform windows giving signal to noise ratio enhancements of the signal through combining. Extended symbol (500) Effective cyclic-prefix duration (501) Fast Fourier transform windows (502,503) Extracted signals (504,505) Combines extracted signals (506)

Place, publisher, year, edition, pages
Keyword [en]
National Category
Communication Systems Signal Processing Telecommunications
URN: urn:nbn:se:kth:diva-74252ISI: 2009S39659OAI: diva2:490150
EP 2286562-B1 (2011-11-16)

JP5156128-B2 (2013-03-06)

Available from: 2012-02-03 Created: 2012-02-02 Last updated: 2013-08-06Bibliographically approved

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Larsson, Peter
Communication SystemsSignal ProcessingTelecommunications

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