Inventor · disambiguated record
Fengjun Xi
Also filed as: XI FENGJUN
135 granted patents·50 pending applications·470 citations·filing 2009–2025
99Inventor score
Files withINTERDIGITAL PATENT HOLDINGS INC106IDAC HOLDINGS INC48INTERDIGITAL PATENT HOLDINGS7CAI LUJING4XI FENGJUN4
Top patents by PatentIndex Score
185 records- 0198US11374644B2Group-based beam managementIDAC HOLDINGS INC·Filed 2020·Granted Jun 28, 2022·9 cites·16 claims
- 0297US11770220B2PHY layer multiplexing of different types of traffic in 5G systemsINTERDIGITAL PATENT HOLDINGS INC·Filed 2021·Granted Sep 26, 2023·6 cites·16 claims
- 0397US11290998B2Random access in new radio (NR) and other beamforming systemsIDAC HOLDINGS INC·Filed 2020·Granted Mar 29, 2022·3 cites·22 claims
- 0497US10334475B2Short packet optimization in WLAN systemsINTERDIGITAL PATENT HOLDINGS INC·Filed 2016·Granted Jun 25, 2019·16 cites·14 claims
- 0596US11792846B2Method and apparatus for multi-user concurrent random access for wireless local area networks (WLANs)INTERDIGITAL PATENT HOLDINGS INC·Filed 2021·Granted Oct 17, 2023·2 cites·20 claims
- 0696US11683125B2Polar coding systems, procedures, and signalingIDAC HOLDINGS INC·Filed 2022·Granted Jun 20, 2023·3 cites·16 claims
- 0796US10477576B2Method and apparatus for multi-user concurrent random access for wireless local area networks (WLANs)INTERDIGITAL PATENT HOLDINGS INC·Filed 2016·Granted Nov 12, 2019·11 cites·18 claims
- 0896US8854976B2Method and apparatus for performing discontinuous reception and/or discontinuous transmission for a multi-carrier/multi-cell operationXI FENGJUN·Filed 2011·Granted Oct 7, 2014·28 cites·8 claims
- 0996US8358614B2Method and apparatus for handling uplink transmissions using multiple uplink carriersINTERDIGITAL PATENT HOLDINGS·Filed 2009·Granted Jan 22, 2013·35 cites·8 claims
- 1095US12068909B2Beam failure recoverySONY GROUP CORP·Filed 2023·Granted Aug 20, 2024·2 cites·16 claims
- 1195US11916680B2Sidelink resource sensing using feedback channelsINTERDIGITAL PATENT HOLDINGS INC·Filed 2020·Granted Feb 27, 2024·4 cites·16 claims
- 1295US11792772B2Systems and/or methods for providing enhanced PDCCH in a multiple carrier based and/or quasi-collated networkINTERDIGITAL PATENT HOLDINGS INC·Filed 2020·Granted Oct 17, 2023·3 cites·20 claims
- 1395US10638457B2Systems and/or methods providing ePDCCH in a multiple carrier based and/or quasi-collated networkINTERDIGITAL PATENT HOLDINGS INC·Filed 2017·Granted Apr 28, 2020·8 cites·14 claims
- 1495US9794913B2Systems and/or methods for providing EPDCCH in a multiple carrier based and/or quasi-collated networkINTERDIGITAL PATENT HOLDINGS INC·Filed 2013·Granted Oct 17, 2017·21 cites·30 claims
- 1595US8665990B2Method and apparatus for multi-antenna transmission in uplinkINTERDIGITAL PATENT HOLDINGS·Filed 2012·Granted Mar 4, 2014·15 cites·6 claims
- 1695US8514820B2Sending feedback for multiple downlink carriersCAI LUJING·Filed 2011·Granted Aug 20, 2013·36 cites·38 claims
- 1794US11777648B2Error check-based synchronization and broadcast channelINTERDIGITAL PATENT HOLDINGS INC·Filed 2021·Granted Oct 3, 2023·2 cites·14 claims
- 1894US11405820B2Short packet optimization in WLAN systemsINTERDIGITAL PATENT HOLDINGS INC·Filed 2019·Granted Aug 2, 2022·5 cites·14 claims
- 1994US11323206B2HARQ for advanced channel codesIDAC HOLDINGS INC·Filed 2020·Granted May 3, 2022·3 cites·20 claims
- 2094US11234267B2Method and apparatus for multi-user concurrent random access for wireless local area networks (WLANS)INTERDIGITAL PATENT HOLDINGS INC·Filed 2019·Granted Jan 25, 2022·6 cites·19 claims
- 2194US10848232B2Group-based beam managementIDAC HOLDINGS INC·Filed 2017·Granted Nov 24, 2020·9 cites·9 claims
- 2294US8355424B2Method and apparatus for multi-antenna transmission in uplinkINTERDIGITAL PATENT HOLDINGS·Filed 2010·Granted Jan 15, 2013·23 cites·6 claims
- 2393US12237928B2Sidelink resource sensing using feedback channelsINTERDIGITAL PATENT HOLDINGS INC·Filed 2024·Granted Feb 25, 2025·1 cites·18 claims
- 2493US11956113B2Efficient utilization of SSBs in new radio systemsSONY CORP·Filed 2021·Granted Apr 9, 2024·2 cites·18 claims
- 2593US11723049B2Beam management in a wireless networkINTERDIGITAL PATENT HOLDINGS INC·Filed 2018·Granted Aug 8, 2023·10 cites·20 claims
- 2693US11082286B2Beam failure recoverySONY CORP·Filed 2018·Granted Aug 3, 2021·6 cites·14 claims
- 2793US11070317B2Sub-block wise interleaving for polar coding systems, procedures, and signalingIDAC HOLDINGS INC·Filed 2018·Granted Jul 20, 2021·7 cites·20 claims
- 2893US9326283B2Reference signal configuration for extension carriers and carrier segmentsSHIN SUNG-HYUK·Filed 2012·Granted Apr 26, 2016·15 cites·18 claims
- 2992US12155450B2Group-based beam managementINTERDIGITAL PATENT HOLDINGS INC·Filed 2023·Granted Nov 26, 2024·1 cites·32 claims
- 3092US8700084B2Method and apparatus for power scaling for multi-carrier wireless terminalsPELLETIER BENOIT·Filed 2010·Granted Apr 15, 2014·9 cites·30 claims
- 3191US11671149B2Beam management for multi-TRPINTERDIGITAL PATENT HOLDINGS INC·Filed 2019·Granted Jun 6, 2023·5 cites·17 claims
- 3291US11082167B2Triggered transmission opportunity and multiple user ACK procedures in WLAN systemsINTERDIGITAL PATENT HOLDINGS INC·Filed 2016·Granted Aug 3, 2021·8 cites·20 claims
- 3391US10979274B2Efficient utilization of SSBs in new radio systemsSONY CORP·Filed 2018·Granted Apr 13, 2021·5 cites·12 claims
- 3491US10868657B2Wireless network configured to provide mixed servicesIDAC HOLDINGS INC·Filed 2017·Granted Dec 15, 2020·9 cites·17 claims
- 3590US12361517B2View-dependent multiple streaming for extended reality (XR) rendering offloadingQUALCOMM INC·Filed 2022·Granted Jul 15, 2025·1 cites·30 claims
- 3690US12040852B2Beam management for multi-TRPINTERDIGITAL PATENT HOLDINGS INC·Filed 2023·Granted Jul 16, 2024·1 cites·20 claims
- 3790US11888663B2Short packet optimization in WLAN systemsINTERDIGITAL PATENT HOLDINGS INC·Filed 2022·Granted Jan 30, 2024·1 cites·20 claims
- 3890US8571488B2Power control for closed loop transmit diversity and MIMO in uplinkCAI LUJING·Filed 2011·Granted Oct 29, 2013·10 cites·31 claims
- 3989US11784750B2HARQ for advanced channel codesINTERDIGITAL PATENT HOLDINGS INC·Filed 2022·Granted Oct 10, 2023·1 cites·23 claims
- 4089US10951291B2Systems and methods for beam managementIDAC HOLDINGS INC·Filed 2017·Granted Mar 16, 2021·6 cites·15 claims
- 4189US10790934B2HARQ for advanced channel codesIDAC HOLDINGS INC·Filed 2017·Granted Sep 29, 2020·5 cites·20 claims
- 4289US9515696B2Method for half-duplex FDD operation in LTE FDD networkINTERDIGITAL PATENT HOLDINGS INC·Filed 2013·Granted Dec 6, 2016·11 cites·17 claims
- 4389US9136990B2Method and apparatus for multiple carrier utilization in wireless communicationsINTERDITIGAL PATENT HOLDINGS INC·Filed 2013·Granted Sep 15, 2015·9 cites·16 claims
- 4488US10536196B2Multiple resource unit allocation for OFDMA WLANINTERDIGITAL PATENT HOLDINGS INC·Filed 2016·Granted Jan 14, 2020·8 cites·20 claims
- 4588US9143213B2Method and apparatus for multi-antenna transmission in uplinkINTERDIGITAL PATENT HOLDINGS·Filed 2014·Granted Sep 22, 2015·6 cites·6 claims
- 4687US12108448B2SS block methods and procedures for NR-UINTERDIGITAL PATENT HOLDINGS INC·Filed 2021·Granted Oct 1, 2024·1 cites·14 claims
- 4787US10506529B2Method and apparatus for power scaling for multi-carrier wireless terminalsINTERDIGITAL PATENT HOLDINGS INC·Filed 2017·Granted Dec 10, 2019·3 cites·6 claims
- 4887US2025125931A1Reference signal configuration for extension carriers and carrier segmentsINTERDIGITAL PATENT HOLDINGS INC·Filed 2024·Application pending·0 cites
- 4986US12316484B2Short packet optimization in WLAN systemsINTERDIGITAL PATENT HOLDINGS INC·Filed 2024·Granted May 27, 2025·0 cites·18 claims
- 5086US11765774B2Physical random access for NR-UINTERDIGITAL PATENT HOLDINGS INC·Filed 2019·Granted Sep 19, 2023·5 cites·19 claims
Showing the top 50 of 185 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →