Inventor · disambiguated record
Chengjin Zhang
Also filed as: ZHANG CHENGJIN
38 granted patents·16 pending applications·249 citations·filing 2005–2025
97Inventor score
Files withQUALCOMM INC24BROADCOM CORP14ZHANG CHENGJIN6ZHENG JUN5CAPITALBIO EHEALTH SCIENCE & TECH BEIJING CO LTD1
Top patents by PatentIndex Score
54 records- 0197US7630337B2Method and system for an improved user group selection scheme with finite-rate channel state information feedback for FDD multiuser MIMO downlink transmissionBROADCOM CORP·Filed 2005·Granted Dec 8, 2009·90 cites·30 claims
- 0296US10412704B2Enhanced discontinuous reception design for a shared frequency bandQUALCOMM INC·Filed 2018·Granted Sep 10, 2019·13 cites·30 claims
- 0396US7515878B2Method and system for greedy user group selection with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedbackBROADCOM CORP·Filed 2005·Granted Apr 7, 2009·48 cites·20 claims
- 0495US10034269B2Enhanced discontinuous reception design for a shared frequency bandQUALCOMM INC·Filed 2017·Granted Jul 24, 2018·11 cites·18 claims
- 0590US7839842B2Method and system for a range reduction scheme for user selection in a multiuser MIMO downlink transmissionBROADCOM CORP·Filed 2005·Granted Nov 23, 2010·14 cites·21 claims
- 0689US7636553B2Double search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedbackBROADCOM CORP·Filed 2005·Granted Dec 22, 2009·15 cites·25 claims
- 0787US10212619B2Managing secondary cell connections in unlicensed spectrumQUALCOMM INC·Filed 2017·Granted Feb 19, 2019·6 cites·24 claims
- 0882US7826416B2Method and system for a simplified user group selection scheme with finite-rate channel state information feedback for FDD multiuser MIMO downlink transmissionBROADCOM CORP·Filed 2005·Granted Nov 2, 2010·8 cites·30 claims
- 0981US7899421B2Double search algorithm of user group selection for multiuser MIMO downlink transmissionBROADCOM CORP·Filed 2005·Granted Mar 1, 2011·7 cites·22 claims
- 1080US10999886B2Techniques for harmonization between CRS and DM-RS based transmission modes in unlicensed spectrumQUALCOMM INC·Filed 2016·Granted May 4, 2021·3 cites·48 claims
- 1178US7903609B2Method and system for an improved user group selection scheme with finite-rate channel state information feedback for FDD multiuser MIMO downlink transmissionBROADCOM CORP·Filed 2009·Granted Mar 8, 2011·5 cites·30 claims
- 1277US8233848B2Method and system for a greedy user group selection with range reduction in TDD multiuser MIMO downlink transmissionZHANG CHENGJIN·Filed 2011·Granted Jul 31, 2012·3 cites·18 claims
- 1376US7917100B2Method and system for a double search user group selection scheme with range in TDD multiuser MIMO downlink transmissionBROADCOM CORP·Filed 2005·Granted Mar 29, 2011·4 cites·24 claims
- 1475US12463462B2Multi-capacitor energy harvestingQUALCOMM INC·Filed 2024·Granted Nov 4, 2025·0 cites·9 claims
- 1573US8412128B2Method and system for a double search user group selection scheme with range reduction in TDD multiuser MIMO downlink transmissionZHENG JUN·Filed 2011·Granted Apr 2, 2013·2 cites·20 claims
- 1673US8150330B2Method and system for greedy user group selection with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedbackZHANG CHENGJIN·Filed 2009·Granted Apr 3, 2012·4 cites·20 claims
- 1770US10375685B2Secondary timing advance groups with only license assisted access secondary cellsQUALCOMM INC·Filed 2018·Granted Aug 6, 2019·1 cites·30 claims
- 1869US10952142B2Energy-efficient paging in wireless networksQUALCOMM INC·Filed 2017·Granted Mar 16, 2021·1 cites·30 claims
- 1967US8934432B2Method and system for a double search user group selection scheme with range reduction in TDD multiuser MIMO downlink transmissionZHENG JUN·Filed 2012·Granted Jan 13, 2015·1 cites·20 claims
- 2065US9197296B2Method and apparatus for maximum ratio transmission mobile transmit diversity systemFILIPOVIC DANIEL F·Filed 2010·Granted Nov 24, 2015·2 cites·41 claims
- 2164US8515360B2Method and system for greedy user group selection with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedbackZHANG CHENGJIN·Filed 2012·Granted Aug 20, 2013·1 cites·14 claims
- 2263US9236929B2Combined intelligent receive diversity (IRD) and mobile transmit diversity (MTD) with independent antenna switching for uplink and downlinkQUALCOMM INC·Filed 2014·Granted Jan 12, 2016·1 cites·72 claims
- 2363US8738053B2Method and system for finding a threshold for semi-orthogonal user group selection in multiuser MIMO downlink transmissionZHANG CHENGJIN·Filed 2005·Granted May 27, 2014·3 cites·21 claims
- 2463US2025338212A1Electronic tag systems downlink (dl) wakeup dataQUALCOMM INC·Filed 2024·Application pending·0 cites
- 2562US8121567B2Double search algorithm of user group selection for multiuser MIMO downlink transmissionZHENG JUN·Filed 2011·Granted Feb 21, 2012·1 cites·21 claims
- 2662US7917101B2Method and system for a greedy user group selection with range reduction in TDD multiuser MIMO downlink transmissionBROADCOM CORP·Filed 2005·Granted Mar 29, 2011·1 cites·21 claims
- 2762US2025324350A1Multi-energizer deployments for ambient internet of things (iot) devicesQUALCOMM INC·Filed 2024·Application pending·0 cites
- 2862US2025324303A1Ambient internet of things (iot) coexistence with electronic shelf label (esl)QUALCOMM INC·Filed 2024·Application pending·0 cites
- 2962US2025351103A1Techniques for local clock calibrationQUALCOMM INC·Filed 2025·Application pending·0 cites
- 3061US8918062B2Combined intelligent receive diversity (IRD) and mobile transmit diversity (MTD) with independent antenna switching for uplink and downlinkKOMNINAKIS CHRISTOS·Filed 2010·Granted Dec 23, 2014·1 cites·64 claims
- 3161US2024430799A1Advertising for batteryless tags using periodic advertisementQUALCOMM INC·Filed 2024·Application pending·0 cites
- 3260US2024283291A1Sensing-based radio frequency signal transmissionQUALCOMM INC·Filed 2024·Application pending·0 cites
- 3358US7936808B2Channel quantization for multiuser diversityBROADCOM CORP·Filed 2005·Granted May 3, 2011·1 cites·20 claims
- 3458US2025260262A1Signal rounds for energy harvesting-capable devicesQUALCOMM INC·Filed 2025·Application pending·0 cites
- 3558US2025358755A1Clock calibration using sine wavesQUALCOMM INC·Filed 2024·Application pending·0 cites
- 3658US2025350411A1Extended preamble for remote-to-device communicationsQUALCOMM INC·Filed 2025·Application pending·0 cites
- 3757US2025254637A1Timing synchronization for computing devicesQUALCOMM INC·Filed 2024·Application pending·0 cites
- 3856US2015180558A1Method and System for a Double Search User Group Selection Scheme With Range Reduction in TDD Multiuser MIMO Downlink TransmissionBROADCOM CORP·Filed 2014·Application pending·0 cites
- 3955US8891387B2UE based conditional enabling of ULTDMOHANTY BIBHU PRASAD·Filed 2011·Granted Nov 18, 2014·1 cites·29 claims
- 4054US9282450B2Method and system for a greedy user group selection with range reduction in TDD multiuser MIMO downlink transmissionBROADCOM CORP·Filed 2013·Granted Mar 8, 2016·0 cites·20 claims
- 4154US8045932B2Double search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedbackBROADCOM CORP·Filed 2009·Granted Oct 25, 2011·0 cites·20 claims
- 4253US8260229B2I-Q mismatch compensationMOTAMED MARIAM·Filed 2009·Granted Sep 4, 2012·1 cites·25 claims
- 4353US2025081141A1Scheduling and reporting for positioning using proximity devicesQUALCOMM INC·Filed 2023·Application pending·0 cites
- 4452US8521103B2Method and system for a greedy user group selection with range reduction in TDD multiuser MIMO downlink transmissionZHANG CHENGJIN·Filed 2012·Granted Aug 27, 2013·0 cites·20 claims
- 4552US2025261141A1Ambient internet-of-things queryingQUALCOMM INC·Filed 2025·Application pending·0 cites
- 4652US2013022001A1Method and System for a Range Reduction Scheme for User Selection in a Multiuser MIMO Downlink TransmissionBROADCOM CORP·Filed 2012·Application pending·0 cites
- 4750US10499255B2Discovery reference signal (DRS) search modes and mode switching techniquesQUALCOMM INC·Filed 2018·Granted Dec 3, 2019·0 cites·28 claims
- 4850US2025193637A1Energizer-aided positioning of ambient devices in an electronic shelf label (esl) systemQUALCOMM INC·Filed 2023·Application pending·0 cites
- 4949US8300723B2Channel quantization for multiuser diversityZHENG JUN·Filed 2011·Granted Oct 30, 2012·0 cites·20 claims
- 5049US8284769B2Method and system for a range reduction scheme for user selection in a multiuser MIMO downlink transmissionZHANG CHENGJIN·Filed 2010·Granted Oct 9, 2012·0 cites·18 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →