公开(公告)号：US10742249B2

公开(公告)日：2020-08-11

申请号：US16317703

申请日：2016-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan-Hao Lan ,  Hsingyu Lung ,  Chien-Jen Huang ,  Haw-Wei Shu ,  Chih-Wei Hsu

IPC: H04B1/3827 ,  H04B17/10 ,  G01R29/08 ,  H04W52/24 ,  H04W52/36

Abstract: 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.

公开(公告)号：US10164701B2

公开(公告)日：2018-12-25

申请号：US15559927

申请日：2015-04-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan-Hao Lan ,  Chien-Jen Huang ,  Hsingyu Lung ,  Haw-Wei Shu

IPC: H04B7/00 ,  H04B7/08 ,  H04W88/06 ,  H04W4/021

Abstract: 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−1 modems other than the first modem.

公开(公告)号：US20220077904A1

公开(公告)日：2022-03-10

申请号：US17299179

申请日：2018-12-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chih-Hua Chang ,  Chien-Jen Huang ,  Chien-Ming Lee ,  Yuan-Hao Lan

IPC: H04B7/06

Abstract: An antenna selection method includes selecting M1 antenna sets from CN−L1L2 antenna combinations, where L1 is a quantity of reserved antennas, a sum of L1 and L2 is equal to L, determining an antenna set with a maximum channel capacity, in M2 antenna sets, as a target antenna set to perform a preset-duration data transmission, where the M2 antenna sets are antenna sets formed by the M1 antenna sets and the L1 reserved antennas. The L1 reserved antennas include a maximum SNR in a target antenna set used in previous preset-duration data transmission. Each of the M2 antenna sets includes the L1 reserved antennas.

公开(公告)号：US10715232B2

公开(公告)日：2020-07-14

申请号：US16332702

申请日：2016-09-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haw-Wei Shu ,  Chien-Jen Huang ,  Yuan-Hao Lan

IPC: H04W4/00 ,  H04B7/06 ,  H04W72/10 ,  H04B7/08 ,  H04B1/403 ,  H04B1/00 ,  H04B7/0404 ,  H04B7/0413 ,  H04W68/02 ,  H04W72/08 ,  H04W88/06

Abstract: 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.

公开(公告)号：US20190356349A1

公开(公告)日：2019-11-21

申请号：US16317703

申请日：2016-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan-Hao Lan ,  Hsingyu Lung ,  Chien-Jen Huang ,  Haw-Wei Shu ,  Chih-Wei Hsu

IPC: H04B1/3827 ,  H04W52/36 ,  H04W52/24 ,  G01R29/08 ,  H04B17/10

Abstract: 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.

公开(公告)号：US20180138931A1

公开(公告)日：2018-05-17

申请号：US15566574

申请日：2015-04-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hsingyu Lung ,  Chien-Jen Huang ,  Yuan-Hao Lan ,  Shengchang Shangguan ,  Xinwei Chen

IPC: H04B1/00 ,  H04L27/00 ,  H04W88/06

CPC classification number: H04B1/0064 ,  H04B1/005 ,  H04B1/40 ,  H04L27/0002 ,  H04W88/06

Abstract: 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.

公开(公告)号：US12185091B2

公开(公告)日：2024-12-31

申请号：US17285636

申请日：2018-10-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haw-Wei Shu ,  Chien-Jen Huang ,  Hsingyu Lung

IPC: H04W36/00 ,  H04W28/24 ,  H04W36/30 ,  H04W36/32 ,  H04W88/06

Abstract: 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.

公开(公告)号：US20220232445A1

公开(公告)日：2022-07-21

申请号：US17285636

申请日：2018-10-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haw-Wei Shu ,  Chien-Jen Huang ,  Hsingyu Lung

IPC: H04W36/30 ,  H04W36/00 ,  H04W36/32 ,  H04W28/24

Abstract: A communications system switching method and a terminal device are provided. The method includes: establishing, by a terminal device, a connection to a first communications system, and running, by the terminal device, a first application; obtaining, by the terminal device, a QoS value of a second communications system; determining, by the terminal device 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; and if the QoS value of the second communications system meets the QoS requirement of the first application, disconnecting, by the terminal device, from the first communications system, and establishing a connection to the second communications system. In this manner, the terminal device can select a proper communications system based on a currently running application. This is relatively flexible and intelligent.

公开(公告)号：US10069520B2

公开(公告)日：2018-09-04

申请号：US15566574

申请日：2015-04-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hsingyu Lung ,  Chien-Jen Huang ,  Yuan-Hao Lan ,  Shengchang Shangguan ,  Xinwei Chen

IPC: H04B1/00 ,  H04W88/06 ,  H04L27/00

Abstract: 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.

公开(公告)号：US11362711B2

公开(公告)日：2022-06-14

申请号：US17299179

申请日：2018-12-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chih-Hua Chang ,  Chien-Jen Huang ,  Chien-Ming Lee ,  Yuan-Hao Lan

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/0413

Abstract: An antenna selection method includes selecting M1 antenna sets from CN-L1L2 antenna combinations, where L1 is a quantity of reserved antennas, a sum of L1 and L2 is equal to L, determining an antenna set with a maximum channel capacity, in M2 antenna sets, as a target antenna set to perform a preset-duration data transmission, where the M2 antenna sets are antenna sets formed by the M1 antenna sets and the L1 reserved antennas. The L1 reserved antennas include a maximum SNR in a target antenna set used in previous preset-duration data transmission. Each of the M2 antenna sets includes the L1 reserved antennas.