Inventor · disambiguated record
Zaifeng Zong
Also filed as: ZONG ZAIFENG
91 granted patents·80 pending applications·254 citations·filing 2007–2025
99Inventor score
Top patents by PatentIndex Score
171 records- 0197US11259220B2Handover method and apparatusHUAWEI TECH CO LTD·Filed 2020·Granted Feb 22, 2022·4 cites·20 claims
- 0296US11985589B2Method, device, and system for network switching involving network slice selectionHUAWEI TECH CO LTD·Filed 2020·Granted May 14, 2024·4 cites·14 claims
- 0396US11671816B2Mobility management method, apparatus, and systemHUAWEI TECH CO LTD·Filed 2021·Granted Jun 6, 2023·3 cites·25 claims
- 0496US11159933B2Mobility management method, apparatus, and systemHUAWEI TECH CO LTD·Filed 2020·Granted Oct 26, 2021·4 cites·20 claims
- 0595US12207128B2Reporting information sending method, apparatus, and systemHUAWEI TECH CO LTD·Filed 2022·Granted Jan 21, 2025·3 cites·19 claims
- 0695US11716667B2Handover method, device, and systemHUAWEI TECH CO LTD·Filed 2021·Granted Aug 1, 2023·2 cites·20 claims
- 0795US11558346B2Address management method and system, and deviceHUAWEI TECH CO LTD·Filed 2020·Granted Jan 17, 2023·5 cites·23 claims
- 0895US8799440B2Policy and charging control method and system for multi-PDN connections of single APNZHOU XIAOYUN·Filed 2009·Granted Aug 5, 2014·51 cites·17 claims
- 0994US11968694B2Communication method and apparatus, and deviceHUAWEI TECH CO LTD·Filed 2022·Granted Apr 23, 2024·2 cites·18 claims
- 1094US11812309B2Communications method, apparatus, and systemHUAWEI TECH CO LTD·Filed 2021·Granted Nov 7, 2023·2 cites·20 claims
- 1193US11870856B2Session establishment method and apparatusHUAWEI TECH CO LTD·Filed 2022·Granted Jan 9, 2024·1 cites·26 claims
- 1292US11533375B2Session establishment method and apparatusHUAWEI TECH CO LTD·Filed 2020·Granted Dec 20, 2022·2 cites·20 claims
- 1391US8326263B2Method for selecting policy and charging rules functionZHOU XIAOYUN·Filed 2008·Granted Dec 4, 2012·25 cites·9 claims
- 1490US11388762B2Method and apparatus for determining protocol data unit session service network elementHUAWEI TECH CO LTD·Filed 2020·Granted Jul 12, 2022·2 cites·20 claims
- 1589US11589270B2Session establishment method and system, and deviceHUAWEI TECH CO LTD·Filed 2020·Granted Feb 21, 2023·2 cites·29 claims
- 1689US11330069B2Service subscription method and system for reporting service change in communication systemHUAWEI TECH CO LTD·Filed 2020·Granted May 10, 2022·2 cites·20 claims
- 1789US11190602B2Communication method and communications deviceHUAWEI TECH CO LTD·Filed 2021·Granted Nov 30, 2021·2 cites·26 claims
- 1888US12425942B2Communication method and apparatus for sending a handover requestHUAWEI TECH CO LTD·Filed 2022·Granted Sep 23, 2025·1 cites·20 claims
- 1988US11528761B2Communication method and communications apparatusHUAWEI TECH CO LTD·Filed 2020·Granted Dec 13, 2022·2 cites·26 claims
- 2088US11134371B2Communication method and communications apparatusHUAWEI TECH CO LTD·Filed 2020·Granted Sep 28, 2021·2 cites·20 claims
- 2188US9380446B2Policy and charging control method supporting IP flow mobility in roaming scenarioZHOU XIAOYUN·Filed 2011·Granted Jun 28, 2016·12 cites·20 claims
- 2287US11895197B2Communication method and apparatusHUAWEI TECH CO LTD·Filed 2020·Granted Feb 6, 2024·2 cites·12 claims
- 2384US11564115B2Load balancing method and network elementHUAWEI TECH CO LTD·Filed 2021·Granted Jan 24, 2023·1 cites·20 claims
- 2483US11606726B2Detecting quality of service (QoS) of a serviceHUAWEI TECH CO LTD·Filed 2020·Granted Mar 14, 2023·2 cites·20 claims
- 2583US10834209B2Session establishment method and apparatusHUAWEI TECH CO LTD·Filed 2019·Granted Nov 10, 2020·2 cites·24 claims
- 2683US8621555B2Access control method and system for packet data network, PCRF entityZHOU XIAOYUN·Filed 2009·Granted Dec 31, 2013·11 cites·18 claims
- 2782US12192589B2Multicast service transmission method and apparatusHUAWEI TECH CO LTD·Filed 2022·Granted Jan 7, 2025·1 cites·20 claims
- 2882US11463920B2Communications method, apparatus, and systemHUAWEI TECH CO LTD·Filed 2020·Granted Oct 4, 2022·1 cites·20 claims
- 2981US8793396B2Method for deleting session information in DRAZHOU XIAOYUN·Filed 2008·Granted Jul 29, 2014·9 cites·18 claims
- 3081US8438290B2Method for selecting a policy and charging rules function entity in the non-roaming scenarioRUI TONG·Filed 2008·Granted May 7, 2013·11 cites·8 claims
- 3180US8855045B2Method and system for controlling establishment of local IP accessZHOU NA·Filed 2011·Granted Oct 7, 2014·6 cites·18 claims
- 3279US8811317B2Method for implementing local access and system thereofLIANG SHUANG·Filed 2010·Granted Aug 19, 2014·8 cites·8 claims
- 3379US8718653B2Method and terminal for association updateHU YING·Filed 2009·Granted May 6, 2014·8 cites·10 claims
- 3478US12302366B2Communication method and apparatus, and deviceHUAWEI TECH CO LTD·Filed 2024·Granted May 13, 2025·0 cites·20 claims
- 3578US9137652B2Method for implementing policy and charging control in a roaming sceneZHOU XIAOYUN·Filed 2009·Granted Sep 15, 2015·6 cites·13 claims
- 3678US8743752B2Method and apparatus for status transitionZHOU NA·Filed 2009·Granted Jun 3, 2014·8 cites·19 claims
- 3777US8769112B2Method and system for policy and charging control based on time periodZHOU XIAOYUN·Filed 2010·Granted Jul 1, 2014·5 cites·6 claims
- 3875US8605679B2Method for avoiding resource being released mistakenly during tracking area update or handover processZHU JINGUO·Filed 2007·Granted Dec 10, 2013·7 cites·10 claims
- 3974US11895715B2Method and apparatus for determining protocol data unit session service network elementHUAWEI TECH CO LTD·Filed 2022·Granted Feb 6, 2024·0 cites·20 claims
- 4073US12096207B2Network access authentication method and deviceZTE CORP·Filed 2023·Granted Sep 17, 2024·0 cites·9 claims
- 4173US2025203465A1Communication method and apparatusHUAWEI TECH CO LTD·Filed 2025·Application pending·0 cites
- 4272US12267735B2Communication method and apparatusHUAWEI TECH CO LTD·Filed 2022·Granted Apr 1, 2025·0 cites·20 claims
- 4372US12108289B2Session establishment method and system, and deviceHUAWEI TECH CO LTD·Filed 2023·Granted Oct 1, 2024·0 cites·26 claims
- 4472US12015682B2Service subscription method and system for reporting service change in communication systemHUAWEI TECH CO LTD·Filed 2022·Granted Jun 18, 2024·0 cites·12 claims
- 4572US8644799B2Charging system and methodRUI TONG·Filed 2010·Granted Feb 4, 2014·3 cites·30 claims
- 4671US11778458B2Network access authentication method and deviceZTE CORP·Filed 2022·Granted Oct 3, 2023·0 cites·9 claims
- 4771US9456006B2Method, device and system for session bindingBI YIFENG·Filed 2012·Granted Sep 27, 2016·4 cites·11 claims
- 4870US11930406B2Handover method and apparatusHUAWEI TECH CO LTD·Filed 2022·Granted Mar 12, 2024·0 cites·20 claims
- 4970US8943165B2Method for reselecting bearer binding and event report functionZHOU XIAOYUN·Filed 2009·Granted Jan 27, 2015·4 cites·20 claims
- 5069US11968743B2Communication method, communications device, and communications systemHUAWEI TECH CO LTD·Filed 2021·Granted Apr 23, 2024·0 cites·30 claims
Showing the top 50 of 171 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →