Validity Report
Basic Report
US10291454B2 — Pilot pattern design for a STTD scheme in an OFDM system
Priority Date: 2000-07-05, Publication Date: 2019-05-14, Current Assignee: Redwood Technologies LLCReport Generated: 2022-01-26
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Patent Id
Score
Title
Patent Type
Publication Date
Priority Date
Search Efficiency
Original Assignee
Current Assignee
US7027464B1●●●●●OFDM signal transmission scheme  and OFDM signal transmitter/receiverGRANT2006-04-111999-07-30GreatPanasonic CorpInterDigital Patent Holdings Inc
US6810020B2●●●●●Apparatus and method for measuring bit error rate in an OFDM communication systemGRANT2004-10-262000-01-28GreatSamsung Electronics Co LtdSamsung Electronics Co Ltd
US7149253B2●●●●●Wireless communicationGRANT2006-12-122000-03-21GreatTexas Instruments IncIntel Corp
US6647003B1●●●●●Channel estimation unit  and CDMA receiver and CDMA transceiver with channel estimation unitGRANT2003-11-111997-11-21GreatNTT Mobile Communications Networks IncNTT Docomo Inc
US6567374B1●●●●●Data and pilot mapping in an OFDM systemGRANT2003-05-201998-02-18GreatSony International Europe GmbHSony Deutschland GmbH
EP1158709A1●●●●●SIGNAL FORMAT IN MULTI-CARRIER CDMA TRANSMISSION SYSTEMGRANT2001-11-282000-01-05GreatNTT Docomo IncNTT Docomo Inc
EP1170916A1●●●●●Channel estimator for OFDM systemGRANT2002-01-092000-07-05GreatSony International Europe GmbHSony Deutschland GmbH
EP0938208A1●●●●●Multicarrier transmission  compatible with the existing GSM systemGRANT1999-08-251998-02-22GreatSony International Europe GmbHSony Deutschland GmbH
US5867478A●●●●●Synchronous coherent orthogonal frequency division multiplexing system  method  software and deviceGRANT1999-02-021997-06-20GreatMotorola IncGoogle Technology Holdings LLC
US6954481B1●●●●●Pilot use in orthogonal frequency division multiplexing based spread spectrum multiple access systemsGRANT2005-10-112000-04-18GreatFlarion Technologies IncQualcomm Inc
EP1290809A1●●●●●APPARATUS AND METHOD FOR TRANSMISSION DIVERSITY USING MORE THAN TWO ANTENNASGRANT2003-03-122000-05-25GreatSamsung Electronics Co LtdSamsung Electronics Co Ltd
EP1133841A1●●●●●SYSTEM AND METHOD FOR COMPENSATING TIMING ERROR USING PILOT SYMBOL IN OFDM/CDMA COMMUNICATION SYSTEMGRANT2001-09-191999-09-29GreatSamsung Electronics Co LtdSamsung Electronics Co Ltd
US7414962B2●●●●●OFDM diversity transmissionGRANT2008-08-192000-04-18GreatSony Deutschland GmbHDRNC Holdings Inc
US6853689B1●●●●●Method and apparatus for channel estimation with transmit diversityGRANT2005-02-081999-07-15GreatTelefonaktiebolaget LM Ericsson ABOptis Wireless Technology LLC, Cluster LLC
EP1168654B1●●●●●Pilot channel power measurement means for a mobile station in asynchronous CDMA communication systemGRANT2006-08-162000-06-28GreatSamsung Electronics Co LtdSamsung Electronics Co Ltd
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Predictive Analytics

Composite Research Score (1-10)
5
  MODERATE
Art VolumeLOW
Tech ComplexityINTRICATE
Priority DateEARLY
Tech DiversityNARROW
Expert Services Estimate$2,550 — $3,000
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Possible Classes
329
Recommended Classes
83
Government Assigned Classes
11
CPC
Title
Score
H04L27/2613Structure of the reference signals | per se●●●●●
H04L5/0048Allocation of pilot signals  i.e. of signals known to the receiver●●●●●
H04B7/04using two or more spaced independent antennas●●●●●
H04L27/26Systems using multi-frequency codes | (ref: H04L27/32)|  takes precedence●●●●●
H04L25/0204of multiple channels●●●●●
H04B7/0684using different training sequences per antenna●●●●●
H04L27/261Details of reference signals | (ref: H04L27/262)|  takes precedence●●●●●
H04L25/0224using sounding signals●●●●●
H04B7/0413MIMO systems●●●●●
H04L27/2601Multicarrier modulation systems●●●●●
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