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公开(公告)号：US11477242B2
公开(公告)日：2022-10-18
申请号：US16746479
申请日：2020-01-17
发明人： Zhongding Lei , Lichun Li , Haiguang Wang , Xin Kang
摘要： Embodiments of this application provide a network security management method and an apparatus. The method includes: receiving, by a first network device, a session request sent by a terminal device, where the session request is used to request establishment of a first session with a first data network, the session request includes first authentication information for the first session, and the first authentication information includes identifier information of the first data network; obtaining, by the first network device, second authentication information for a second session of the terminal device, where the second authentication information includes identifier information of a second data network to which the second session is connected; and if the identifier information of the first data network is the same as the identifier information of the second data network, authorizing the terminal device to establish the first session with the first data network.
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公开(公告)号：US11425202B2
公开(公告)日：2022-08-23
申请号：US16659334
申请日：2019-10-21
发明人： Lichun Li , Zhongding Lei , Bo Zhang
IPC分类号： H04L67/141 , H04L61/5007 , H04W84/04
摘要： Embodiments of a session processing method and a device relating to a data network are provided. The method includes a data-network network element in the data network receiving a data network access request sent by a session management function (SMF) network element of the data network, where the data network access request includes an identifier of user equipment UE and a session address to be used by the UE. The data-network network element sends a response message to the SMF, where the response message instructs the SMF to allow the UE to access the data network, so that the SMF establishes a data packet unit session of the UE. The data-network network element detects, based on the session address or the identifier of the UE, that the data packet unit session of the UE needs to be processed, generates a session processing request, and instructs, by using the session processing request, the SMF to process the data packet unit session of the UE.
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公开(公告)号：US20210111906A1
公开(公告)日：2021-04-15
申请号：US17129428
申请日：2020-12-21
发明人： Xin KANG , Yanjiang YANG , Haiguang WANG , Zhongding LEI
摘要： Embodiments of this application provide a pseudonym credential configuration method and apparatus. The method includes: receiving an identifier of a terminal device and information about N to-be-requested pseudonym credentials from the terminal device, sending N second request messages to a pseudonym credential generation server, and storing a tag of each second request message in association with the identifier of the terminal device in the registration server, so that the registration server can obtain, based on the tag, the identifier that is of the terminal device and that is associated with the tag; and generating N pseudonym credentials. The pseudonym credential generated in this application may enable a behavior investigation server to learn of a real identity of the terminal device.
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公开(公告)号：US20200310359A1
公开(公告)日：2020-10-01
申请号：US16900452
申请日：2020-06-12
发明人： Chao YUAN , Rui YU , Xuesong CHEN , Supeng LIU , Theng Tee YEO
摘要： A time-to-digital converter (TDC) is disclosed, which comprises a ring oscillator module and a digital error correction module. The ring oscillator module is configured to receive a sampling signal, an addressing signal, and a preset signal, and includes: a ring oscillator arranged with a plurality of inverters; a phase sampler configured to sample phase signals generated by the inverters for generating a first output signal; a counter clock generator configured to generate first and second clock signals; first and second counters configured to respectively generate first and second counter output signals; and a data sampler configured to sample the first and second counter output signals to respectively generate second and third output signals. The digital error correction module is arranged to process the first, second and third output signals for generating a digital signal.
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公开(公告)号：US20200275270A1
公开(公告)日：2020-08-27
申请号：US16874328
申请日：2020-05-14
发明人： Xin KANG , Haiguang WANG , JIE SHI
摘要： A method for devices without SIM card (SD) to communicate directly with a core network. The method may be performed in the following matter. The SD registers with the core network through a cellular device (MD) in order to obtain a credential for the SD. The credential comprises Access ID, key, and control parameters. The SD then performs a mutual authentication directly with the core network using the credential. If the SD authenticates successfully with the core network, the SD is granted access to the servers via the core network.
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公开(公告)号：US20190357039A1
公开(公告)日：2019-11-21
申请号：US16529470
申请日：2019-08-01
摘要： This document describes a system and method for a device to communicate efficiently and securely with another device by utilizing two different types of schemes for the generation of data to be transmitted and the handling of received data.
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公开(公告)号：US10484215B2
公开(公告)日：2019-11-19
申请号：US15965386
申请日：2018-04-27
发明人： Harya Wicaksana , Zhan Yu , Rui Yu
摘要： A system and method for an NFC card for use in asynchronous NFC card emulation mode transmission. The method comprises estimating carrier frequency offset between a carrier frequency of a NFC reader and a carrier frequency of the NFC card, adjusting digital baseband sampling of the baseband sample output at the NFC card emulation mode transmitter based on the estimated carrier frequency offset to obtain an adjusted baseband sample output and modulating a RF transmitter in the NFC card emulation mode transmitter based on the adjusted baseband sample output.
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公开(公告)号：US20190297083A1
公开(公告)日：2019-09-26
申请号：US16372668
申请日：2019-04-02
发明人： Lichun LI , Haiguang WANG , Xin KANG
摘要： A system for managing and distributing a blacklist of User Equipment IDs (UE IDs) in a network. The system comprises a number of groups of networks, each of the groups of networks comprise a blacklist server and a number of authentication servers. The system further comprises a Package Key Generator (PKG). The blacklist server is configured to: store a blacklist containing UE IDs that are not allowed to gain access to the network; transmit the blacklist to the plurality of authentication servers in the same group; receive a message; determine a content in the message is an order to add a new revoked UE ID to the blacklist; update the blacklist to include the new revoked UE ID; and send an update blacklist message to the plurality of authentication servers in the same group.
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29.发明授权公开(公告)号：US10282448B2
公开(公告)日：2019-05-07
申请号：US14921337
申请日：2015-10-23
发明人： Tsz Hon Yuen
摘要： A system and method for searching a symmetrically encrypted database for conjunctive keywords is provided. More particularly, the system and method provides means for searching a symmetrically encrypted database for conjunctive keywords by utilizing an encrypted index table and a Bloom filter. The encrypted index table contains encrypted keywords and their associated index pairs while the Bloom filter contains elements that represent encrypted identity-keyword pairs of the database.
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公开(公告)号：US20180324110A1
公开(公告)日：2018-11-08
申请号：US16032804
申请日：2018-07-11
发明人： Zhiguo GE , Naxin ZHANG
IPC分类号： H04L12/933 , H04L12/433 , H04L12/861 , H04L12/54
CPC分类号： H04L49/1546 , G06F13/4247 , H04L12/433 , H04L12/5601 , H04L49/1576 , H04L49/9005 , H04L2012/5674
摘要： This invention is related to an Express Traversal (EXTRA) Network on Chip (NoC) comprising a number of EXTRA routers. The EXTRA NoC comprises a Buffer Write and Route Computation (BW/RC) pipeline, a Switch Allocation-Local (SA-L) pipeline, a Setup Request (SR) pipeline, a Switch Allocation-Global (SA-G) pipeline, and a Switch Traversal and Link Traversal (ST/LT) pipeline. The BW/RC pipeline is configured to write an incoming flit to an input buffer(s) of a start EXTRA router and compute the route for the incoming head flit by selecting an output port to depart from the start EXTRA router. The SA-L pipeline is configured to arbitrate the start EXTRA router to choose an input port and an output port for a winning flit. The SR pipeline is configured to handle the transmission of a number of SR signals from the start EXTRA router to downstream EXTRA routers.
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