Huawei Technologies Co., Limited

Chien-Jen Huang

Yuan-Hao Lan

Haw-Wei Shu

Hsingyu Lung

Chih-Wei Hsu

Chien-Ming Lee

Chih-Hua Chang

Shengchang Shangguan

Xinwei Chen

Haw-wei Shu

Hsingyu Long

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

An antenna selection method includes selecting Mantenna sets from Cantenna combinations, where Lis a quantity of reserved antennas, a sum of Land Lis equal to L, determining an antenna set with a maximum channel capacity, in Mantenna sets, as a target antenna set to perform a preset-duration data transmission, where the Mantenna sets are antenna sets formed by the Mantenna sets and the Lreserved antennas. The Lreserved antennas include a maximum SNR in a target antenna set used in previous preset-duration data transmission. Each of the Mantenna sets includes the Lreserved antennas.

Antenna selection method and 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

Example methods and apparatus for configuring an antenna are disclosed. One method includes determining a communication status of each of a plurality of communications modules in a terminal device. An antenna use priority of each communications module is determined based on the communication status of the communications module. An antenna for each communications module is configured based on the antenna use priority of the communications module.

Antenna configuration method, terminal device, and antenna circuit

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.

Growing community of inventors

Shanghai, China

Chien-Jen Huang