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    Method, Apparatus and System for Key Derivation
    2.
    发明申请
    Method, Apparatus and System for Key Derivation 审中-公开
    方法，仪器和系统的关键推导

    公开(公告)号：US20130079014A1

    公开(公告)日：2013-03-28

    申请号：US13667944

    申请日：2012-11-02

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Min Huang ,  Jing Chen ,  Aiqin Zhang ,  Xiaohan Liu

    IPC: H04W36/08

    CPC classification number: H04W36/08 ,  H04W12/04 ,  H04W36/0038 ,  H04W36/0088 ,  H04W76/27

    Abstract: A method, an apparatus and a system for key derivation are disclosed. The method includes the following steps: a target base station) receives multiple keys derived by a source base station, where the keys correspond to cells under control of the target base station; the target base station selects a key corresponding to the target cell after knowing a target cell that a user equipment (UE) wants to access. An apparatus for key derivation and a communications system are also provided.

    Abstract translation: 公开了一种用于密钥推导的方法，装置和系统。 该方法包括以下步骤：目标基站）接收由源基站导出的多个密钥，其中密钥对应于目标基站的控制下的小区; 目标基站在知道用户设备（UE）想要访问的目标小区之后，选择与目标小区相对应的密钥。 还提供了用于密钥推导的装置和通信系统。

    METHOD, DEVICE, AND SYSTEM FOR DERIVING KEYS
    4.
    发明申请
    METHOD, DEVICE, AND SYSTEM FOR DERIVING KEYS 有权

    公开(公告)号：US20220150062A1

    公开(公告)日：2022-05-12

    申请号：US17583013

    申请日：2022-01-24

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Aiqin Zhang ,  Jing Chen ,  Xiaoyu Bi

    IPC: H04L9/08 ,  H04W12/041

    Abstract: Method, device, and system for deriving keys are provided in the field of mobile communications technologies. The method for deriving keys may be used, for example, in a handover process of a User Equipment (UE) from an Evolved Universal Terrestrial Radio Access Network (EUTRAN) to a Universal Terrestrial Radio Access Network (UTRAN). If a failure occurred in a first handover, the method ensures that the key derived by a source Mobility Management Entity (MME) for a second handover process of the UE is different from the key derived for the first handover process of the UE. This is done by changing input parameters used in the key derivation, so as to prevent the situation in the prior art that once the key used on one Radio Network Controller (RNC) is obtained, the keys on other RNCs can be derived accordingly, thereby enhancing the network security.

    Policy control method and related apparatus and system
    5.
    发明授权
    Policy control method and related apparatus and system 有权

    公开(公告)号：US10212090B2

    公开(公告)日：2019-02-19

    申请号：US14939758

    申请日：2015-11-12

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Aiqin Zhang

    IPC: H04L12/813 ,  H04W76/12 ,  H04W76/02 ,  H04L12/24 ,  H04M15/00 ,  H04L12/66 ,  H04L29/06 ,  H04L12/407 ,  H04L12/64

    Abstract: This application discloses a policy control method, including: after a gateway is connected to a network, receiving a first gateway access identifier; selecting a PCRF entity for the gateway accordingly, and establishing a first session for the gateway to implement policy control on the gateway; when a mobile terminal or a fixed-line device is connected to the network through the gateway to perform service data flow access, receiving a second gateway access identifier; if the second gateway access identifier and the first gateway access identifier are the same, selecting, for a service data flow of the mobile terminal or the fixed-line device, a same PCRF entity, and establishing a second session to implement policy control on the service data flow of the mobile terminal or the fixed-line device. The foregoing manner is used to prevent incorrect policy control from causing an exception.

    METHOD, APPARATUS AND SYSTEM FOR MARKING SERVICE DATA PACKET
    6.
    发明申请
    METHOD, APPARATUS AND SYSTEM FOR MARKING SERVICE DATA PACKET 有权
    用于标记服务数据包的方法，装置和系统

    公开(公告)号：US20150016299A1

    公开(公告)日：2015-01-15

    申请号：US14502524

    申请日：2014-09-30

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Aiqin Zhang ,  Weisheng Jin

    IPC: H04L12/26 ,  H04L12/14 ,  H04L29/08

    CPC classification number: H04L43/028 ,  H04L12/1407 ,  H04L47/2408 ,  H04L67/14

    Abstract: A method, an apparatus and a system for marking a service data packet are provided. A traffic detection function TDF is requested to detect a data flow description or data flow starting or ending information corresponding to a service application type. The detected data flow description or a data flow starting or ending information report, transmitted by the TDF, is received. A data packet marking rule is generated according to the data flow description or the data flow starting or ending information report. A session modification message carrying the data packet marking rule is transmitted to a bearer binding function entity BBF for the BBF to map a data flow identified by the session modification message to a bearer according to the session modification message, and mark a GTP-U header according to the data packet marking rule.

    Abstract translation: 提供了一种用于标记服务数据分组的方法，装置和系统。 请求流量检测功能TDF检测对应于服务应用类型的数据流描述或数据流开始或结束信息。 由TDF发送的检测到的数据流描述或数据流开始或结束信息报告被接收。 根据数据流描述或数据流开始或结束信息报告生成数据包标记规则。 携带数据分组标记规则的会话修改消息被发送到用于BBF的承载绑定功能实体BBF，以根据会话修改消息将由会话修改消息标识的数据流映射到承载，并标记GTP-U报头 根据数据包标记规则。

    Method, Network Element, and Mobile Station for Negotiating Encryption Algorithms
    9.
    发明申请
    Method, Network Element, and Mobile Station for Negotiating Encryption Algorithms 审中-公开
    方法，网元和移动台协商加密算法

    公开(公告)号：US20150104020A1

    公开(公告)日：2015-04-16

    申请号：US14550734

    申请日：2014-11-21

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Jing Chen ,  Yongfeng Deng ,  Aiqin Zhang ,  Jun Qin

    IPC: H04L29/06 ,  H04W12/04

    CPC classification number: H04L63/0457 ,  G06F21/34 ,  G06F21/602 ,  G06F2221/2103 ,  G06F2221/2107 ,  G06F2221/2111 ,  H04L9/12 ,  H04L63/0428 ,  H04L63/062 ,  H04L63/205 ,  H04W12/02 ,  H04W12/04 ,  H04W12/06 ,  H04W12/08

    Abstract: A method, network element, and mobile station (MS) are disclosed. The method includes: obtaining information that a plug-in card of the MS does not support a first encryption algorithm; deleting the first encryption algorithm from an encryption algorithm list permitted by a core network element according to the information that the plug-in card of the MS does not support the first encryption algorithm; sending the encryption algorithm list excluding the first encryption algorithm to an access network element, so that the access network element selects an encryption algorithm according to the encryption algorithm list excluding the first encryption algorithm and the MS capability information sent from the MS and sends the selected encryption algorithm to the MS. By using the method, network element, and MS, errors due to the fact that the plug-in card of the MS does not support an encryption algorithm may be avoided during the encryption process.

    Abstract translation: 公开了一种方法，网元和移动台（MS）。 该方法包括：获得MS的插件卡不支持第一加密算法的信息; 根据MS的插件卡不支持第一加密算法的信息，从核心网元允许的加密算法列表中删除第一加密算法; 将不包括第一加密算法的加密算法列表发送到接入网元，使得接入网元根据除了第一加密算法之外的加密算法列表和从MS发送的MS能力信息选择加密算法，并发送所选择的 加密算法到MS。 通过使用该方法，网元和MS，由于MS的插件卡不支持加密算法的事实可能在加密处理期间被避免。

    Method, device, and system for deriving keys
    10.
    发明授权
    Method, device, and system for deriving keys 有权

    公开(公告)号：US12219055B2

    公开(公告)日：2025-02-04

    申请号：US17583013

    申请日：2022-01-24

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Aiqin Zhang ,  Jing Chen ,  Xiaoyu Bi

    IPC: H04L9/08 ,  H04L9/40 ,  H04W12/041 ,  H04W36/00 ,  H04W88/14

    Abstract: Method, device, and system for deriving keys are provided in the field of mobile communications technologies. The method for deriving keys may be used, for example, in a handover process of a User Equipment (UE) from an Evolved Universal Terrestrial Radio Access Network (EUTRAN) to a Universal Terrestrial Radio Access Network (UTRAN). If a failure occurred in a first handover, the method ensures that the key derived by a source Mobility Management Entity (MME) for a second handover process of the UE is different from the key derived for the first handover process of the UE. This is done by changing input parameters used in the key derivation, so as to prevent the situation in the prior art that once the key used on one Radio Network Controller (RNC) is obtained, the keys on other RNCs can be derived accordingly, thereby enhancing the network security.

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