Huawei Technologies Co., Limited

Huawei Device Co., Ltd.

Techtronic Cordless Gp

Hai Lian

Shujun Dang

Guoqiong Cao

Xiaoyun Jing

Xiaofei Zhao

Shenyun Zhang

Bin Huang

Li Qin Shen

Denis Gaston Fauteux

Haihong Lin

Fengguang Qiu

Weilin Gong

Bao Zhang

Hei Man Lee

Yuwei Fan

Ngai Cheung

Yinyuan Jia

Jingjing Yao

Dianwu Xu

Senling Lin

Dohoon Kim

In a battery charging system (), a charger () and a smart battery () enhance safety in recharging a cell () in the smart battery () by a power supply () of the charger (). The smart battery () is communicable with the charger (). If a communication failure occurs, the charger () disconnects the power supply () from the smart battery (). The smart battery () and the charger () share the same symmetric encryption key for encrypting and decrypting message data, allowing one party to determine if the other part is an authentic one. When the smart battery () finds that the charger () is not authentic, or vice versa, the power supply () and the cell () are disconnected. When the smart battery () finds that a no-charging condition occurs due to abnormality in the cell (), the smart battery () requests the charger () to stop charging, and also disconnects the cell () from the charger () even if the charger () fails to stop charging the smart battery ().

Smart battery, charger and battery charging system

This application provides a communication method and a terminal device. The terminal device includes a radio frequency transmit channel, a first SIM card interface, and a second SIM card interface. A method performed by the terminal device can include, when the terminal device needs to perform a first voice service, disconnecting the terminal device from the 5G network, and connecting the terminal device to a first LTE network by using the first SIM card. The method can also include performing the first voice service through the first LTE network, and receiving a first connection request from a second LTE network, where the first connection request is used to request the terminal device to perform a second voice service, and the second voice service is related to the second SIM card. Furthermore, the method can include responding to the first connection request by occupying the radio frequency transmit channel in a time division manner in a process of performing the first voice service.

Communication method and terminal device

This application discloses a call method and system, and a related apparatus. When a specific condition is met (for example, a callee fails to be paged), a network device forwards, to a VoIP server, a first call request to a target number, where the first call request is a call request initiated by a calling terminal to the target number, and the target number has been subscribed to a call forwarding service. Then the VoIP server parses a forwarding message from the network device to obtain a called number, searches, based on the called number, for the called terminal associated with the called number, and initiates a VoIP call to the called terminal, so that the callee in an out-of-service state (for example, there is no signal of an operator network or the callee is in an airplane mode) can still receive the call request from the caller.

System, method, and apparatus for transfer to VoIP call

A method includes determining a network that can be monitored by a terminal as a to-be-assessed network. The method includes determining whether an absolute value of a signal-energy-value change speed of the to-be-assessed network is greater than a preset speed threshold, where the preset speed threshold is greater than 0. The method includes shortening an energy assessment period when the absolute value of the signal-energy-value change speed is greater than the preset speed threshold. The method includes performing signal energy assessment on the to-be-assessed network by using the shortened energy assessment period.

Network assessment method and apparatus

A service control method, a terminal, and a network device. The method includes measuring, by a terminal, a service status of interaction between the terminal and a network and/or a moving speed of the terminal, and reporting, by the terminal, measured service status information and/or speed information to a network device such that the network device configures a network parameter of the terminal according to the service status information and/or the speed information. Therefore, a network throughput is improved, and terminal energy consumption is reduced.

Service control method, terminal, and network device

A service control method, a terminal, and a network device. The method includes measuring, by a terminal, a service status of interaction between the terminal and a network and/or a moving speed of the terminal; and reporting, by the terminal, measured service status information and/or speed information to a network device, so that the network device configures a network parameter of the terminal according to the service status information and/or the speed information. Therefore, a network throughput is improved, and terminal energy consumption is reduced.

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Shanghai, China

Hai Lian