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公开(公告)号：US11419020B2
公开(公告)日：2022-08-16
申请号：US16805209
申请日：2020-02-28
发明人： Lixiang Xu , Hong Wang , Huarui Liang
摘要： Methods and apparatuses for verifying HeNB. A method reduces and/or avoids affecting the operator's network due to the attack from HeNB, and ensures the safety of the users who have accessed the network.
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公开(公告)号：US10779357B2
公开(公告)日：2020-09-15
申请号：US16570390
申请日：2019-09-13
发明人： Lixiang Xu , Hong Wang , Huarui Liang
摘要： Methods for avoiding handover failure are provided. The method includes determining, by a source Base Station (BS), to perform a handover of a User Equipment (UE); determining, by the source BS, whether a target BS connects with a user plane node serving the UE at the source BS; and releasing resources, when the target BS does not connect with the user plane node serving the UE at the source BS.
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公开(公告)号：US20200288357A1
公开(公告)日：2020-09-10
申请号：US16882306
申请日：2020-05-22
发明人： Lixiang XU , Hong Wang , Huarui Liang
摘要： A method for supporting fast recovery of a User Equipment (UE) includes performing, by a serving base station, UE context synchronization for one or more other base stations in a related small cell cluster when a UE accesses the serving base station, performing, by a base station that the UE performs a radio resource control (RRC) connection re-establishment, the RRC connection re-establishment for the UE according to UE context saved in a synchronization process. The present also discloses another method and system for supporting UE fast recovery. By applying the technical solution disclosed by the present disclosure, when the UE moves in a small cell scenario, the UE can be recovered quickly in the case of a failure, so as to avoid the UE returns to an idle mode, avoid data loss, guarantee business continuity, and improve UE experience.
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公开(公告)号：US20190222295A1
公开(公告)日：2019-07-18
申请号：US16363979
申请日：2019-03-25
发明人： Lixiang Xu , Hong Wang , Huarui Liang
CPC分类号： H04B7/14 , H04W24/02 , H04W36/0072 , H04W72/0413 , H04W72/042 , H04W76/11 , H04W76/27 , H04W88/10
摘要： A method enabling an relay node (RN) to support multiple wireless access techniques is provided, which includes: a mobility management element (MME) requests a DeNB to establish evolved radio access bearers (ERAB) of EUTRAN and indicates access network information that will be transmitted by each of the ERABs; the DeNB requests an RN to establish radio bearers (RB) and indicates the access network information that will be transmitted by each of the RBs. The above method makes fewer modifications to conventional networks and techniques, guarantees service quality provided for a UE accessing an LTE system, and enables an RN to support access of UEs using multiple access techniques.
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公开(公告)号：US09992713B2
公开(公告)日：2018-06-05
申请号：US14411862
申请日：2013-06-27
发明人： Huarui Liang , Hong Wang , Lixiang Xu
CPC分类号： H04W36/0077 , H04W8/082 , H04W36/12
摘要： Examples of the present disclosure provide a method for determining access control, applied in a handoff procedure of a UE. The method includes: if a current service is a LIPA@LN service, and if the UE is in a same local network before and after the handoff, keeping, by a node performing access control determination, service continuity of the LIPA@LN service; if the UE moves out of the local network after the handoff, deactivating, by the node performing the access control determination, the LIPA@LN service; if the current service is a SIPTO@LN only service or a SIPTO@CN@LN service, if the UE is in the same local network before and after the handoff, keeping, by the node performing the access control determination, the service continuity of the SIPTO@LN only service or the SIPTO@CN@LN service; if the UE moves out of the local network after the handoff, determining, by the node performing the access control determination, whether to keep the service continuity of the SIPTO@LN only service or the SIPTO@CN@LN service according to a network policy. According to the technical solution provided by the present disclosure, service continuity of the LIPA service or the SIPTO service can be maintained correctly.
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公开(公告)号：US09924353B2
公开(公告)日：2018-03-20
申请号：US14647381
申请日：2013-12-30
申请人： SAMSUNG ELECTRONICS CO., LTD. , BEIJING SAMSUNG TELECOMMUNICATIONS TECHNOLOGY RESEARCH CO., LTD.
发明人： Hong Wang , Huarui Liang , Lixiang Xu
CPC分类号： H04W12/04 , H04W72/0406
摘要： The present application discloses a method for configuring and transmitting a key, which includes that: a) a serving cell (PCell) of UE determines a key (KeNB) used by a SCell and transmits the KeNB to the SCell; and b) the PCell transmits configuration information for configuring the SCell to the UE after receiving a response message from the SCell, and receives a response message from the UE. Or, the method includes that: a SCell of UE transmits a cell key request to a MME and receives key information from the MME; and the SCell transmits the key information received from the MME to the UE, and receives a response message from the UE. By the present application, data of the SCell is transmitted after being encrypted, so as to avoid a case that the data is decoded by other users, and further guarantee the security of the data.
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公开(公告)号：US20180048454A1
公开(公告)日：2018-02-15
申请号：US15785230
申请日：2017-10-16
发明人： Hong Wang , Lixiang Xu , Huarui Liang
IPC分类号： H04L5/00
摘要： A system for configuring a UE-AMBR includes a MME to send the UE-AMBR to an eNB covering the serving cell of the UE, the eNB covering the serving cell of the UE establishes a radio access bearer of the UE on at least one secondary cell. The MME sends an AMBR of the UE in the primary eNB covering the serving cell of the UE and an AMBR of the UE in a secondary eNB to the primary eNB. The primary eNB sends the AMBR of the secondary eNB to the corresponding secondary eNB. The technical solutions of the present disclosure can make total rate of all non-GBR services of the UE be not larger than the UE-AMBR when the UE has multiple S1 bearers or one S1 bearer.
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8.发明申请公开(公告)号：US20150072686A1
公开(公告)日：2015-03-12
申请号：US14385492
申请日：2013-03-15
发明人： Lixiang Xu , Hong Wang , Huarui Liang , Xiaowan Ke
IPC分类号： H04W36/00
CPC分类号： H04W36/0061 , H04W36/04 , H04W84/045
摘要： The present invention discloses a method for supporting a handover to a closed subscriber group (CSG) cell or a hybrid cell in a mobile communication system, and the method includes: sending, by a radio access network (RAN), information indicating that authorized public land mobile network (PLMN) information changes to a user equipment (UE); sending, by the UE, all PLMN identifiers (IDs) broadcasted by a target CSG cell to a source RAN in a measurement report; and selecting, by the source RAN or a source core network(CN), a target PLMN for the UE.
摘要翻译： 本发明公开了一种在移动通信系统中支持向封闭用户组（CSG）小区或混合小区进行切换的方法，该方法包括：由无线接入网（RAN）发送指示授权公众 陆地移动网络（PLMN）信息改变为用户设备（UE）; 由UE将由目标CSG小区广播的所有PLMN标识符（ID）发送到测量报告中的源RAN; 以及由所述源RAN或源核心网（CN）选择所述UE的目标PLMN。
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公开(公告)号：US11039343B2
公开(公告)日：2021-06-15
申请号：US16834469
申请日：2020-03-30
发明人： Lixiang Xu , Hong Wang , Huarui Liang
摘要： A method for supporting indication of a failure event to a source access system is provided. The method includes notifying, by the source access system, information of a source cell to a target access system, routing, by the target access system, a message to the base station or the base station controller of the source access through a core network by use of the information of the source cell received from the source access system when the target access system needs to transmit a message to the source access system. By use of the method provided by the present disclosure, a problem of mobility robustness optimization (MRO) among different radio access technology (RAT) may be notified to the source access system, so as to avoid impact for a terminal, reduce operator configuration.
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公开(公告)号：US20210014743A1
公开(公告)日：2021-01-14
申请号：US17031807
申请日：2020-09-24
发明人： Lixiang XU , Hong Wang , Huarui Liang
摘要： A method for supporting fast recovery of a User Equipment (UE) includes performing, by a serving base station, UE context synchronization for one or more other base stations in a related small cell cluster when a UE accesses the serving base station, performing, by a base station that the UE performs a radio resource control (RRC) connection re-establishment, the RRC connection re-establishment for the UE according to UE context saved in a synchronization process. The present also discloses another method and system for supporting UE fast recovery. By applying the technical solution disclosed by the present disclosure, when the UE moves in a small cell scenario, the UE can be recovered quickly in the case of a failure, so as to avoid the UE returns to an idle mode, avoid data loss, guarantee business continuity, and improve UE experience.
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