公开(公告)号：US20210051553A1

公开(公告)日：2021-02-18

申请号：US16976679

申请日：2018-03-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenrong WEI ,  Hao SONG ,  Shujun DANG ,  Caihua HUANG

IPC: H04W36/14 ,  H04W8/18 ,  H04W88/06

Abstract: This application provides a method for returning from a low-standard network to a high-standard network, to resolve a problem that a primary card of a terminal device in dual SIM dual standby single pass mode cannot return to the high-standard network after falling back from the high-standard network to the low-standard network during a data service. The method includes: detecting that a first subscriber identification module SIM card of the terminal device falls back from a first-standard network to a second-standard network; obtaining a registration status of a second SIM card, where the registration status includes an operator of the second SIM card and a network on which the second SIM card camps, and the first SIM card and the second SIM card enable the terminal device to work in the dual SIM dual standby single pass mode; obtaining a target standard network based on the registration status of the second SIM card; and registering the first SIM card with the target standard network.

公开(公告)号：US20220279390A1

公开(公告)日：2022-09-01

申请号：US17631546

申请日：2020-07-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xin ZHANG ,  Hao SONG ,  Tao LI

IPC: H04W36/00 ,  H04W36/32 ,  H04W36/36 ,  H04W8/18

Abstract: A method and an electronic device for operator network switching are provided and relate to the field of terminal technologies. A currently activated profile in an electronic device is a first profile. Specifically, the method includes: accessing, by the electronic device, a first operator network based on the first profile; detecting a second operation after disconnecting a connection to the first operator network in response to a first operation; searching for a network based on stored profiles in response to the second operation, to obtain network search results corresponding to the stored profiles; activating a second profile based on the network search results corresponding to the stored profiles; and accessing a second operator network based on the second profile. In this way, operator network switching is implemented.

公开(公告)号：US20230180111A1

公开(公告)日：2023-06-08

申请号：US17927574

申请日：2021-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui YANG ,  Xuyang DU ,  Hao SONG ,  Fenghui DOU ,  Hui JIN

IPC: H04W48/16 ,  H04W48/18

CPC classification number: H04W48/16 ,  H04W48/18

Abstract: This disclosure provides network search methods and electronic devices. One method includes: A terminal device accesses a network of a first communications radio access technology (RAT), determines that a network anomaly occurs, where the network anomaly includes: no network or a fall into a lower RAT and searches for a network of a target communications RAT, where the target communications RAT is a communications RAT that is not lower than the first communications RAT; and the terminal device is connected to the network of the target communications RAT.