Huawei Technologies Co., Limited

Hsingyu Lung

Chien-Jen Huang

Haw-Wei Shu

Yuan-Hao Lan

Shengchang Shangguan

Yanzong Zhong

Chaodi Song

Chih-Wei Hsu

Hao Song

Lei Fu

Xinwei Chen

Haw-wei Shu

Tianyi Hou

A communications system switching method and a terminal device establish, by the terminal device, a connection to a first communications system, run a first application, obtain a QoS value of a second communications system, determine based on a preset policy and a QoS requirement of the first application, whether the QoS value of the second communications system meets the QOS requirement of the first application. When the QoS value of the second communications system meets the QOS requirement of the first application, the terminal device disconnects from the first communications system and establishes a connection to the second communications system.

Communications system switching method and terminal device

A method for triggering a search for a high-RAT network includes when it is detected that a WI-FI of a terminal device is disconnected, a terminal device moves out of an elevator, or a terminal device moves to another location with a better signal, the terminal device is triggered to start background searching for a network, and attempt to camp on and register with the high-RAT network.

Method for quickly searching for high-RAT network, and terminal device

A method for controlling a specific absorption rate (SAR) of a wireless communications device and a wireless communications device, and the wireless communications device includes a first antenna and a second antenna. The method includes transmitting, by the wireless communications device, a radio frequency signal using the first antenna, and stopping using the first antenna and starting transmitting the radio frequency signal using the second antenna when transmit power of the first antenna is greater than first preset power and a first time period elapses to enable the wireless communications device to meet an SAR standard. There is no backoff of antenna transmit power in a process of controlling the SAR of the wireless communications device. Therefore, communication quality of the wireless communications device is ensured while the SAR standard is met.

Method for controlling specific absorption rate of wireless communications device and wireless communications device

An measurement method and a terminal, where the method includes: determining, by a first antenna selection module in terminal, at least two measured antennas, setting the at least two measured antennas as a first measurement antenna, adding the first measurement antenna to an occupied antenna set; determining measurement duration of the first measurement antenna; performing a measurement operation on the first measurement antenna; determining, by a second antenna selection module, a second measurement antenna and measurement duration of the second measurement antenna based on the occupied antenna set and the measurement duration of the first measurement antenna, adding the second measurement antenna to the occupied antenna set; performing a measurement operation on the second measurement antenna; and determining, a measurement result of the first measurement antenna and a measurement result of the second measurement antenna when the measurement duration of the first measurement antenna ends.

Antenna measurement method and terminal

An antenna measurement method and a terminal, where the method includes determining, by a first antenna selection circuit in a terminal, at least two measured antennas, setting the at least two measured antennas as a first measurement antenna, adding the first measurement antenna to an occupied antenna set, determining measurement duration of the first measurement antenna, performing a measurement operation on the first measurement antenna, determining, by a second antenna selection circuit, a second measurement antenna and measurement duration of the second measurement antenna based on the occupied antenna set and the measurement duration of the first measurement antenna, adding the second measurement antenna to the occupied antenna set, performing a measurement operation on the second measurement antenna, and determining a measurement result of the first measurement antenna and a measurement result of the second measurement antenna.

An antenna allocation method and a terminal for modems to receive a signal with a good antenna includes allocating a first antenna to a first modem; and if it is determined that the first modem satisfies a preset state, allocating the first antenna to any one of N&#x2212;1 modems other than the first modem.

Antenna allocation method and terminal

A multimode terminal includes a first modem chip, a second modem chip, a switch connected to both the modem chips, and at least two antennas connected to the switch. The first modem chip includes an antenna selection apparatus configured to select an optimum antenna for the first modem chip, control the switch to connect the first modem chip to the optimum antenna of the first modem chip, determine an optimum antenna of the second modem chip according to a related parameter value of a signal received or transmitted by the second modem chip, and control the switch to connect the second modem chip to the optimum antenna of the second modem chip. The second modem chip includes a measurement apparatus configured to measure the related parameter value of the signal received or transmitted by the second modem chip.

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Shanghai, China

Hsingyu Lung