公开(公告)号：US12184388B2

公开(公告)日：2024-12-31

申请号：US17686470

申请日：2022-03-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chengchen Zhang ,  Lin Shu ,  Wenfu Wu

IPC: H04W4/40 ,  H04B7/185 ,  H04W8/08 ,  H04W24/04 ,  H04W60/00 ,  H04W84/06

Abstract: This application discloses an abnormal offline state determining method and a related apparatus. The method includes: An access and mobility management function network element (AMF) obtains location information when an uncrewed aerial vehicle enters or leaves an offline state. If a location indicated by the location information is outside a target offline area, the AMF marks a state of the uncrewed aerial vehicle as an abnormal offline state. The AMF sends a state identifier of the abnormal offline state to an unmanned aircraft system traffic management network element (UTM). Therefore, the location information when the uncrewed aerial vehicle enters or leaves the offline state is used to determine whether the uncrewed aerial vehicle is in the abnormal offline state, so that accuracy of determining the abnormal offline state of the uncrewed aerial vehicle can be improved to some extent.

公开(公告)号：US12016063B2

公开(公告)日：2024-06-18

申请号：US17356735

申请日：2021-06-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chengchen Zhang ,  Wenfu Wu ,  Zaifeng Zong

IPC: H04W76/11 ,  H04B7/185 ,  H04W4/40

CPC classification number: H04W76/11 ,  H04B7/18506 ,  H04W4/40

Abstract: A communication method and apparatus. According to the communication method, a session management function (SMF) receives a first message sent by a first terminal apparatus. The first message is used to request the SMF to establish a first session for the first terminal apparatus. The first message is further used to indicate that the first session is used for communication between the first terminal apparatus and a second terminal apparatus. The first terminal apparatus and the second terminal apparatus belong to a same unmanned aerial vehicle communication system. Then, the SMF sends address information of the first terminal apparatus to a first management network element based on the first message. This provides a possibility of exchanging address information of terminal apparatuses in an unmanned aerial vehicle communication system.

公开(公告)号：US11528770B2

公开(公告)日：2022-12-13

申请号：US16952632

申请日：2020-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lin Shu ,  Chengchen Zhang

IPC: H04W76/25 ,  H04W8/08 ,  H04W48/16

Abstract: A session management method performed by a session management network element includes receiving a first request message, where the first request message is used to request to establish a first session for a terminal, determining to establish the first session as an always-on session, where the always-on session is a session for which user-plane resources are activated when the terminal is transitioned from an idle mode to a connected mode, and sending a first response message to the terminal, where the first response message is used to indicate that the session management network element accepts to establish the first session, the first response message comprises first indication information, and the first indication information is used to indicate that the first session is an always-on session.

公开(公告)号：US20220361286A1

公开(公告)日：2022-11-10

申请号：US17814320

申请日：2022-07-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chengchen Zhang ,  Lin Shu

IPC: H04W76/32

Abstract: Embodiments of this application provide a session processing method and apparatus. When a quantity of sessions of a terminal device that each have an activated user plane connection is not less than a quantity threshold, the terminal device determines to deactivate a user plane connection of at least one first session, where the sessions that each have the activated user plane connection include the at least one first session. The terminal device sends a first request message to a first network element, where the first request message includes indication information, and the indication information indicates to deactivate the user plane connection of the at least one first session.

公开(公告)号：US20220225471A1

公开(公告)日：2022-07-14

申请号：US17708803

申请日：2022-03-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chengchen Zhang ,  Lin Shu ,  Wenfu Wu

IPC: H04W76/30 ,  H04W76/10 ,  H04W4/42 ,  B64C39/02

Abstract: The present invention discloses a flight area management method for an uncrewed aerial vehicle and a related apparatus. The method includes: An access and mobility management function AMF obtains flight area exception information of an uncrewed aerial vehicle, where the flight area exception information indicates that the uncrewed aerial vehicle is not located in a normal flight area. The AMF sends a flight area exception notification message to an uncrewed aerial system traffic management UTM, where the flight area exception notification message is used to indicate that the uncrewed aerial vehicle is not located in the normal flight area. When flight area exception occurs on the uncrewed aerial vehicle, using the UTM to control the uncrewed aerial vehicle can improve controlling safety for the uncrewed aerial vehicle.