公开(公告)号：US20200008118A1

公开(公告)日：2020-01-02

申请号：US16566638

申请日：2019-09-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lifeng HAN ,  Hongping ZHANG ,  Qinghai ZENG ,  Qufang HUANG ,  Yinghao GUO

IPC: H04W36/08 ,  H04W36/30 ,  H04W68/00 ,  H04W76/11 ,  H04W80/08

Abstract: This application provides a reflective QoS flow characteristic-based communications method and apparatus. In the method, an access-network network element sends first information to a core-network network element, where the first information is used to indicate whether a data packet has a reflective QoS flow characteristic; and the access-network network element determines, based on the first information, whether there is a need to send a QoS flow identifier to a terminal. In this way, signaling overheads are reduced.

公开(公告)号：US20190327665A1

公开(公告)日：2019-10-24

申请号：US16460711

申请日：2019-07-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tingting GENG ,  Hongping ZHANG ,  Qinghai ZENG ,  Yalin LIU ,  Yi GUO

IPC: H04W48/10 ,  H04W4/06 ,  H04W72/00

Abstract: One example communication method includes a distributed unit (DU) receives a first indicator from a central unit (CU), where the first indicator is used to indicate that first system information is to be broadcast by the DU, the first system information is obtained by the DU from the CU and stored at the DU previously. The DU broadcasts a second indicator and the first system information, where the second indicator indicates that the first system information is being broadcast.

公开(公告)号：US20180220341A1

公开(公告)日：2018-08-02

申请号：US15938248

申请日：2018-03-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mingzeng DAI ,  Hongping ZHANG ,  Qinghai ZENG

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

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：US20180206248A1

公开(公告)日：2018-07-19

申请号：US15919237

申请日：2018-03-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongping ZHANG ,  Le YAN ,  Mingzeng DAI ,  Qinghai ZENG ,  Jing LIU

IPC: H04W72/08 ,  H04W36/26 ,  H04W72/04 ,  H04W88/12

CPC classification number: H04W72/085 ,  H04W36/26 ,  H04W72/042 ,  H04W76/19 ,  H04W76/27 ,  H04W76/30 ,  H04W88/12

Abstract: Embodiments of the present invention provide an RRC connection method and an apparatus. The method includes: receiving, by a terminal, a deactivation indication message sent by a first base station, where the deactivation indication message carries indication information relating to mobility control of the terminal, and the first base station is a serving base station of the terminal; and releasing, by the terminal, an RRC connection according to the deactivation indication message, reserving context information of the terminal, and entering an inactive state. In this solution, the context information of the terminal does not need to be released, so that when entering a connected state again, the terminal does not need to obtain the context information again, thereby reducing signaling overheads.

公开(公告)号：US20170257812A1

公开(公告)日：2017-09-07

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: H04W36/38

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：US20170251362A1

公开(公告)日：2017-08-31

申请号：US15595626

申请日：2017-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongping ZHANG

IPC: H04W12/04 ,  H04W92/20 ,  H04W76/02 ,  H04L5/00

CPC classification number: H04W12/04 ,  H04L5/001 ,  H04L5/0098 ,  H04L2463/061 ,  H04W76/15 ,  H04W92/20

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：US20140308956A1

公开(公告)日：2014-10-16

申请号：US14307187

申请日：2014-06-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongping ZHANG ,  Qinghai ZENG

IPC: H04W36/00

CPC classification number: H04W36/0072 ,  H04W56/0045 ,  H04W56/0055

Abstract: The present invention provides a method for determining a timing advance group of a serving cell, including: determining, by a source base station of a user equipment, a target base station that the user equipment is to be handed over to; sending auxiliary information for determining a timing advance group of a target serving cell of the user equipment to the target base station; receiving the timing advance group of the target serving cell of the user equipment that is determined by the target base station according to the auxiliary information; and sending the timing advance group to the user equipment. Implementation of the method provided by the present invention can avoid timing advance grouping performed on a secondary carrier after handover, and reduce data transmission interruption or delay incurred by the handover, thereby improving quality of service of a communications service.

Abstract translation: 本发明提供一种用于确定服务小区的定时提前组的方法，包括：由用户设备的源基站确定要移交的用户设备的目标基站; 向所述目标基站发送用于确定所述用户设备的目标服务小区的定时提前组的辅助信息; 根据辅助信息，接收由目标基站确定的用户设备的目标服务小区的定时提前组; 并将定时提前组发送给用户设备。 本发明提供的方法的实现可以避免在切换之后对辅载波进行的定时提前分组，并减少切换引起的数据传输中断或延迟，从而提高通信服务的服务质量。

公开(公告)号：US20140308921A1

公开(公告)日：2014-10-16

申请号：US14314837

申请日：2014-06-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongping ZHANG

IPC: H04W12/04

CPC classification number: H04W12/04 ,  H04L5/001 ,  H04L5/0098 ,  H04L2463/061 ,  H04W76/15 ,  H04W92/20

Abstract: This invention discloses 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. This invention further discloses 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.

Abstract translation: 本发明公开了一种用于基站之间的载波聚合的安全通信的方法，该方法包括：由用户设备接收第一消息，将由辅基站控制的小区添加为由主基站发送的服务小区; 以及由所述用户设备创建用于根据所述主基站和所述第一消息的安全上下文与由所述辅助基站控制的小区进行通信的安全密钥。 本发明还公开了相应的用户设备和基站。 根据本发明的方法和装置的实现使得有可能有​​效地保护空中接口的数据传输的安全性并避免对空中接口的安全性的攻击。