Multi-frame synchronization for parallel channel transmissions

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United States of America Patent

APP PUB NO 20010000701A1
SERIAL NO

09737645

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention comprises a method and apparatus for synchronizing data frames from a wide bandwidth data stream which is divided up and transmitted across a plurality of parallel channels in a mobile telephone system. Prior to transmitting the data frames, a transmit synchronizer synchronizes data frames aligned in the same position in different parallel channels by inserting a common bit from a repeating PN synchronization sequence into the aligned data frames. Upon receiving the data frames at a destination, a receive synchronizer extracts the synchronization bit from each data frame. A series of sequential bits from each parallel channel is compared against the original PN synchronization sequence to identify the position of each data frame relative to the other data frames and reconstructs the original wide bandwidth data stream.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)STOCKHOLM12205

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anderson, Per-Olof Stockholm, SE 3 180
Bakhuizen, Martin Kista, SE 4 84
Carneheim, Caisa Cary, NC 3 84
Malm, Lars Solna, SE 3 74

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Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
LATTICE SEMICONDUCTOR CORPORATION (1)
7532646 Distributed multiple-channel alignment scheme 1 2005
 
JPMORGAN CHASE BANK, N.A. (1)
* 7042854 Method and apparatus for acquiring a synchronization signal 3 2001
 
MICROSOFT TECHNOLOGY LICENSING, LLC (10)
* 7543148 Audio watermarking with covert channel and permutations 9 2000
7197368 Audio watermarking with dual watermarks 43 2003
* 2004/0059,581 Audio watermarking with dual watermarks 9 2003
7266697 Stealthy audio watermarking 91 2004
* 2004/0204,943 Stealthy audio watermarking 36 2004
7206649 Audio watermarking with dual watermarks 141 2004
* 2005/0055,214 Audio watermarking with dual watermarks 5 2004
7552336 Watermarking with covert channel and permutations 3 2004
* 2005/0108,542 Watermarking with covert channel and permutations 19 2004
8878041 Detecting beat information using a diverse set of correlations 0 2009
* Cited By Examiner