公开(公告)号：US10952275B2

公开(公告)日：2021-03-16

申请号：US16188213

申请日：2018-11-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongping Zhang ,  Qinghai Zeng

IPC: H04W76/27 ,  H04W76/20 ,  H04W48/08 ,  H04W48/16

Abstract: This application provides method and apparatus for RRC state control. An access network device obtains RRC connected inactive state indication information of UE. When the UE leaves an RRC connected state, the access network device determines, based on the RRC connected inactive state indication information, that the UE enters an RRC connected inactive state or an RRC idle state, so that the access network device can control, based on a state of the UE, the UE to enter an appropriate RRC state, thereby reducing signaling overheads and improving system performance.

公开(公告)号：US10721657B2

公开(公告)日：2020-07-21

申请号：US15938248

申请日：2018-03-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mingzeng Dai ,  Hongping Zhang ,  Qinghai Zeng

IPC: H04W36/18 ,  H04W36/00 ,  H04W36/08 ,  H04W76/19 ,  H04W76/28 ,  H04W76/18 ,  H04W76/27 ,  H04W88/08

Abstract: The invention discloses a method of obtaining user equipment context information that includes: receiving, by a first base station, a first radio resource control (RRC) connection establishment request sent by a user equipment (UE), where the first RRC connection establishment request carries connection status information before the UE sends the first RRC connection establishment request; determining, by the first base station according to the connection status information, whether the first base station meets a condition for requesting the UE context information; if the first base station determines that the first base station does not meet the condition for requesting the UE context information, sending, by the first base station, the UE context information establishment request to a mobility management entity (MME); and receiving, by the first base station, a response message sent by the MME for responding to the UE context information establishment request, where the response message carries the UE context information.

公开(公告)号：US20190327656A1

公开(公告)日：2019-10-24

申请号：US16460594

申请日：2019-07-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lifeng HAN ,  Hongping Zhang ,  Qufang Huang ,  Qinghai Zeng

IPC: H04W36/08 ,  H04W72/12 ,  H04W36/00

Abstract: A method for a handover of a mobile station performed by a source base station and a target base station. The target base station receives a handover request message, from the source base station, in which includes QoS information of the mobile device, radio bearer identifier information of the source base station, and a first mapping relationship between a flow and a radio bearer of the source base station, the target base station acknowledges with a handover acknowledgement message. Therefore resource preparation at the target base station during a handover procedure is improved.

公开(公告)号：US10425876B2

公开(公告)日：2019-09-24

申请号：US15598128

申请日：2017-05-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mingzeng Dai ,  Yi Guo ,  Qinghai Zeng ,  Hongping Zhang

IPC: H04W36/00 ,  H04W36/38 ,  H04W36/28

Abstract: Embodiments of the present invention provide a data forwarding method, device, and communications system, which relate to the field of communications and can achieve accuracy and continuity of data transmission during carrier aggregation for cells between base stations. The method includes: sending, by a primary base station, a first message to a secondary base station, where the first message is used to instruct the secondary base station to perform handover, and the first message includes an identifier of a target base station; confirming, by the primary base station, that the secondary base station forwards data to the target base station; and sending, by the primary base station, a second message to a user equipment, where the second message is used to instruct the user equipment to acquire the data from the target base station. The embodiments of the present invention are used for data forwarding.

公开(公告)号：US10412582B2

公开(公告)日：2019-09-10

申请号：US15595626

申请日：2017-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongping Zhang

IPC: H04W12/04 ,  H04W76/15 ,  H04W92/20 ,  H04L5/00

Abstract: Embodiments of the invention disclose a method for security communication of carrier aggregation between base stations, which method comprises receiving, by a user equipment, a first message to add a cell controlled by a secondary base station as a service cell sent by a primary base station; and creating, by the user equipment, a security key for communication with cells controlled by the secondary base station according to security context of the primary base station and the first message. Embodiments of the invention further disclose the corresponding user equipment and base stations. Implementation of the method and apparatus according to the present invention makes it possible to effectively protect security of data transmission of the air interface and to avoid attacks on air interface security.

公开(公告)号：US10341924B2

公开(公告)日：2019-07-02

申请号：US14564936

申请日：2014-12-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qufang Huang ,  Hongping Zhang ,  Mingzeng Dai

IPC: H04W36/08 ,  H04W36/28 ,  H04W36/00 ,  H04W12/04 ,  H04W72/04

Abstract: Embodiments of the present invention disclose a primary secondary cell change method and a base station. The primary secondary cell change method in the embodiments of the present invention includes: determining, by a primary base station, to change a first primary secondary cell served by a secondary base station, and selecting a second primary secondary cell from cells served by the secondary base station; sending, by the primary base station, a first message to the secondary base station, which is used to request the secondary base station to change the primary secondary cell, where the first message includes an identity of the second primary secondary cell; and sending, by the primary base station, a second message to a user equipment UE, which is used to request the UE to use the second primary secondary cell.

公开(公告)号：US20190141585A1

公开(公告)日：2019-05-09

申请号：US16239320

申请日：2019-01-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mingzeng Dai ,  Jian Zhang ,  Qinghai Zeng ,  Yi Guo ,  Hongping Zhang

IPC: H04W36/00 ,  H04W36/12 ,  H04W12/04 ,  H04W76/15

Abstract: A method of distributing a security key context, where the method includes receiving, by a mobility management entity, a first indication from a primary base station, where the first indication is used for requesting a path switch from the mobility management entity and indicating that the path switch is triggered by carrier aggregation between base stations, processing the path switch according to the first indication, keeping, according to the first indication, the security key context for the path switch unchanged, and sending a second indication to the primary base station to indicate the primary base station to keep the security key context unchanged, or sending a third indication to the primary base station to indicate the primary base station to acquire a quantity of times of reversal of a next hop chaining counter in the security key context.

公开(公告)号：US20190124515A1

公开(公告)日：2019-04-25

申请号：US16220711

申请日：2018-12-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongping Zhang ,  Le Yan ,  Mingzeng Dai ,  Qinghai Zeng ,  Yi Guo

IPC: H04W12/10 ,  H04W12/04 ,  H04W12/00 ,  H04W76/15 ,  H04W88/02

Abstract: The present application provides a data transmission method in a wireless communication system. A first security parameter indication is introduced into uplink data on a first bearer, and a base station can determine, based on the first security parameter indication in the uplink data, whether first security processing of the uplink data is performed using a first security parameter or a second security parameter, so as to select a corresponding security parameter to perform second security processing; and a second security parameter indication is introduced into downlink data, and UE can determine, based on the second security parameter indication in the downlink data, whether the first security processing of the data is performed using the first security parameter or the second security parameter, so as to select a corresponding security parameter to perform the second security processing.

公开(公告)号：US20170142707A1

公开(公告)日：2017-05-18

申请号：US15420981

申请日：2017-01-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Zhang ,  Hongping Zhang ,  Qinghai Zeng ,  Yan Wang ,  Liangliang Zhang

IPC: H04W72/04 ,  H04W52/36 ,  H04L5/00 ,  H04W52/14

CPC classification number: H04W72/0413 ,  H04L5/0035 ,  H04W52/04 ,  H04W52/146 ,  H04W52/365 ,  H04W72/0426 ,  H04W72/0453 ,  H04W72/0473 ,  H04W76/40 ,  H04W88/02 ,  H04W88/08

Abstract: By using a method for coordination between base stations, one base station allocates a resource to user equipment in a better manner with reference to resource configuration information saved in the base station and resource configuration information of another base station. The method provided in the embodiments of the present invention includes: acquiring, by a first base station, resource configuration information of a first cell, where the first cell is a cell served by the first base station; receiving resource configuration information of a second cell sent by a second base station, where the second cell is a cell served by the second base station; and allocating a resource to user equipment according to the resource configuration information of the first cell and the resource configuration information of the second cell, so that the user equipment communicates with the first cell and the second cell.

公开(公告)号：US09591541B2

公开(公告)日：2017-03-07

申请号：US14723255

申请日：2015-05-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junhui Zhao ,  Hongping Zhang ,  Qinghai Zeng ,  Tao Zhong

IPC: H04W36/22 ,  H04W36/00 ,  H04W36/14

CPC classification number: H04W36/22 ,  H04W36/0066 ,  H04W36/14

Abstract: The present invention discloses a migration method and an apparatus, which relate to the field of communications technologies and are invented for implementation of proper configuration of different network resources. The method includes: sending, by a base station of a first network, information to a user equipment, where the information is used for: migrating, by the user equipment, from a second network to the first network, where the user equipment is in an idle state relative to the first network; or determining, by the user equipment, whether to migrate from the first network to the second network, where the first network is a 3GPP network, and the second network is a non-3GPP network. The present invention is mainly applied to a process of network migration of the user equipment.

Abstract translation: 本发明公开了一种迁移方法和装置，其涉及通信技术领域，并且被发明用于实现不同网络资源的适当配置。 该方法包括：由第一网络的基站向用户设备发送信息，其中所述信息用于：由用户设备从第二网络迁移到第一网络，其中用户设备处于 相对于第一网络的空闲状态; 或者由用户设备确定是否从第一网络迁移到第二网络，其中第一网络是3GPP网络，并且第二网络是非3GPP网络。 本发明主要应用于用户设备的网络迁移过程。