US Patent No: 8,175,118
Number of patents in Portfolio can not be more than 2000
Efficient physical layer preamble format
Stats
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May 8, 2012
Issued date -
May 15, 2009
filing date -
12/466,997
serial no -
In Force
status
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Abstract
A method of generating a data unit preamble includes generating a first field associated with at least one of packet synchronization information or frame boundary indication, and generating a second field associated with channel estimation, including generating a first channel estimation sequence (CES) symbol and generating a second CES symbol, so that at least one of 1) a sequence in the first field serves as a cyclic prefix of the first CES symbol, 2) a beginning portion of the second CES symbol serves as a cyclic postfix of the first CES symbol, or 3) an ending portion of the first CES symbol serves as a cyclic prefix of the second CES symbol.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 2009/0285,241 Efficient Physical Layer Preamble Format | 4 | 2009 | |
| 2009/0285,319 Efficient Physical Layer Preamble Format | 4 | 2009 | |
| 2009/0285,339 Apparatus for Generating Spreading Sequences and Determining Correlation | 4 | 2009 | |
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| 7,046,748 Channel estimation sequence and method of estimating a transmission channel which uses such a channel estimation sequence | 4 | 2004 | |
| 7,616,622 Synchronization signal for synchronizing base stations | 8 | 2005 | |
| 7,254,193 Channel estimation sequence and method of estimating a transmission channel which uses such a channel estimation sequence | 4 | 2005 | |
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| 2005/0195,906 Low peak-to-average ratio preamble, and associated method, for packet radio communication system | 5 | 2005 | |
| 2009/0125,792 METHOD AND APPARATUS FOR PREAMBLE CREATION AND COMMUNICATION IN A WIRELESS COMMUNICATION NETWORK | 13 | 2008 | |
| 2010/0157,907 METHOD AND APPARATUS FOR SIGNALING TRANSMISSION CHARACTERISTICS IN A WIRELESS COMMUNICATION NETWORK | 5 | 2010 | |
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| 2009/0163,143 METHOD FOR DETERMINING AND COMPENSATING TRANSCEIVER NON-IDEALITIES | 6 | 2008 | |
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| 2009/0175,261 METHOD AND APPARATUS FOR GENERATING PREAMBLE OF DATA PACKET | 5 | 2008 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Nov 8, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 8, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 8, 2023 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |