公开(公告)号：US20210120450A1

公开(公告)日：2021-04-22

申请号：US17131247

申请日：2020-12-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenjie PENG ,  Kun YANG ,  Liwei QIU ,  Mingzeng DAI

IPC: H04W28/02 ,  H04W28/22

Abstract: This application discloses a signal transmission method. The method may include: A core network delivers two sets of QoS parameters to an access network device. The access network device selects one of the two sets of QoS parameters, and indicates the selected set of QoS parameters to the core network. An air interface rate required by the set of QoS parameters can be supported by a RAN. In this way, a QoS parameter applied to related UE, a related bearer, a related PDU session, or a related QoS flow can be effectively determined, and a board capability of an LTE base station does not need to be upgraded. In addition, the core network may set, based on a QoS parameter selected by a RAN side, a corresponding QoS management policy such as a rate adjustment policy, to facilitate data transmission between UE and the core network.

公开(公告)号：US20180167900A1

公开(公告)日：2018-06-14

申请号：US15894091

申请日：2018-02-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Man WANG ,  Henrik OLOFSSON ,  Liwei QIU

IPC: H04W56/00

CPC classification number: H04W56/001 ,  H04W56/00 ,  H04W56/004 ,  H04W88/08

Abstract: According to a synchronization method and apparatus provided in this application, a source station sends location information of the source station; and after obtaining a signal propagation delay that is calculated according to the location information of the source station and location information of a to-be-synchronized station, the to-be-synchronized station performs synchronization with the source station according to a synchronization reference time obtained by subtracting the propagation delay from a receiving time of a first network reference signal received from the source station. It can be learned that, in a process in which the to-be-synchronized station performs synchronization with the source station, the signal propagation delay between the to-be-synchronized station and the source station is used to compensate for the receiving time of the first network reference signal. Therefore, the consumed propagation delay can be subtracted from the synchronization reference time, so that synchronization accuracy is improved.

公开(公告)号：US20230084686A1

公开(公告)日：2023-03-16

申请号：US17989879

申请日：2022-11-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenjie PENG ,  Liwei QIU ,  Dongdong WEI

IPC: H04W28/02

Abstract: A communication method and apparatus. A first network element sends, to a second network element, N groups of QoS profiles corresponding to a first QoS flow, and then receives first indication information from the second network element, where the first indication information indicates one of the N groups of QoS profiles selected by the second network element for the first QoS flow. The first network element sends second indication information to a third network element, where the second indication information indicates the one of the N groups of QoS profiles selected for the first QoS flow.

公开(公告)号：US20200374320A1

公开(公告)日：2020-11-26

申请号：US16990317

申请日：2020-08-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： He LI ,  Jing CHEN ,  Liwei QIU ,  Chong LOU

IPC: H04L29/06 ,  H04W76/15 ,  H04W76/27 ,  H04W12/02

Abstract: Embodiments of this application provide a security protection method and apparatus, and an access network device, and relate to the field of communications technologies, to resolve a problem that user plane security protection cannot be enabled as required in the prior art. The method includes: receiving, by a first access network device, a first message from a second access network device, where the first message carries a user plane security policy, and the user plane security policy is used to indicate a type of user plane security protection to be enabled by the first access network device; and then determining, by the first access network device based on the user plane security policy, a user plane security algorithm and a user plane key corresponding to the user plane security algorithm.