公开(公告)号：US20250097898A1

公开(公告)日：2025-03-20

申请号：US18570009

申请日：2023-04-13

Applicant: Honor Device Co., Ltd.

Inventor： Haibo LI

IPC: H04W68/02 ,  H04L65/1016 ,  H04L65/1104

Abstract: A called terminal device camping on a 5th generation (5G) standalone (SA) network receives a paging message. The called terminal device may start a first timer when detecting that a data radio bearer (DRB) for transmitting Internet Protocol (IP) multimedia subsystem (IMS) data is established, and detect whether IMS data is received in an on period of the first timer. If the first timer expires and the called terminal device does not receive INVITE or other IMS data, it is considered that the network is abnormal and therefore the IMS data (such as INVITE) cannot be received. In this case, the called terminal device may actively fall back to long term evolution (LTE) to receive an incoming call. In this way, the called terminal device can receive an INVITE message or a paging message in an IMS domain on the LTE, thereby avoiding a failed incoming call.

公开(公告)号：US20240284316A1

公开(公告)日：2024-08-22

申请号：US18570402

申请日：2022-09-07

Applicant: HONOR DEVICE CO., LTD.

Inventor： Haibo LI ,  Chao XUE

IPC: H04W48/16 ,  H04W48/20 ,  H04W76/10

CPC classification number: H04W48/16 ,  H04W48/20 ,  H04W76/10

Abstract: This application provides a call processing method and an apparatus, which are used in an electronic device. The electronic device that is called or initiates a call camps on a first cell of an LTE network after being redirected form a 5G network to the LTE network. The first cell belongs to a tracking area. The method includes: after tracking area update fails, searching, in response to identifying an abnormal signaling flow, for an available cell that does not belong to a tracking area, and initiating the tracking area update in the available cell to attempt to establish a call. Therefore, it is attempted to establish a call in the available cell that does not belong to the tracking area, which can improve a possibility of successfully establishing a call after the redirection from the 5G network to the LTE network.

公开(公告)号：US20250056643A1

公开(公告)日：2025-02-13

申请号：US18712116

申请日：2022-09-07

Applicant: Honor Device Co., Ltd.

Inventor： Haibo LI

IPC: H04W76/19 ,  H04L65/1016 ,  H04W60/04 ,  H04W68/02 ,  H04W76/20

Abstract: This application relates to the communications field, and discloses a call receiving method and a communication apparatus to improve a success rate of being called of a terminal device in a stand alone (SA) mode. A terminal device receives a call message from a network in a new radio (NR) domain, where the call message is for requesting to call the terminal device, and the terminal device is in a stand alone (SA) mode. The terminal device falls back, if the terminal device does not receive expected information from the network within a first time period after a preset call procedure, to a long term evolution (LTE) domain after the first time period to receive a call.