Device control method and system, and related apparatus

Patent metadata

Field	Value
Publication number	US-2022272563-A1
Application number	US-202017629015-A
Country	US
Kind code	A1
Filing date	Jul 20, 2020
Priority date	Jul 23, 2019
Publication date	Aug 25, 2022
Grant date	—

Abstract

A device control system is disclosed. The system includes a first mobile terminal and a second mobile terminal. After enabling a wireless hotspot function, the first mobile terminal establishes a wireless fidelity (Wi-Fi) connection to the second mobile terminal, and transmits data to the second mobile terminal in a MIMO Wi-Fi antenna working mode. The first mobile terminal may monitor a remaining battery level and/or a device temperature of the mobile terminal. When the remaining battery level is less than a first battery level threshold and/or the device temperature is greater than a first temperature threshold, the first mobile terminal switches the Wi-Fi antenna working mode as SISO, limits a maximum forwarding rate of a TCP packet or a UDP packet to a first rate, and/or no longer responds to a probe request. In this way, power consumption of the first mobile terminal is reduced.

First claim

1 . A device control system, comprising a first mobile terminal and a second mobile terminal, wherein
the first mobile terminal is configured to: after enabling a wireless hotspot function, establish a wireless fidelity (Wi-Fi) connection to the second mobile terminal, and transmit data to the second mobile terminal in a multiple-input multiple-output (MIMO) Wi-Fi antenna working mode in which a Wi-Fi antenna working mode is set to MIMO; monitor a remaining battery level and/or a device temperature of the first mobile terminal; and upon determining that the remaining battery level is less than a first battery level threshold and/or the device temperature is greater than a first temperature threshold, switch the Wi-Fi antenna working mode to single-input single-output (SISO), limit a maximum forwarding rate of a transmission control protocol (TCP) packet or a user datagram protocol (UDP) packet to a first rate, and/or stop responding to a probe request, and the second mobile terminal is configured to access the internet by using the first mobile terminal connected through Wi-Fi.

2 . The system according to claim 1 , wherein the first mobile terminal is further configured to:
upon determining that a quantity of terminal devices connected to the first mobile terminal through Wi-Fi reaches a specified value, stop responding to a probe request.

3 . The system according to claim 1 , wherein the first mobile terminal is further configured to:
upon determining that the remaining battery level is less than a second battery level threshold, limit the maximum forwarding rate of the TCP packet or the UDP packet to a second rate, wherein the second battery level threshold is less than the first battery level threshold, and the second rate is less than the first rate.

4 . The system according to claim 1 , wherein the first mobile terminal is further configured to:
upon determining that the device temperature is greater than a second temperature threshold, limit the maximum forwarding rate of the TCP packet or the UDP packet to a second rate, wherein the second temperature threshold is greater than the first temperature threshold.

5 . The system according to claim 1 , wherein the first mobile terminal is further configured to:
upon detecting that a preset high power consumption application is running, switch the Wi-Fi antenna working mode to SISO, limit the maximum forwarding rate of the TCP packet or the UDP packet to the first rate, and/or stop responding to the probe request.

6 . The system according to claim 1 , wherein the first mobile terminal is further configured to:
before switching the Wi-Fi antenna working mode to SISO, send a first switching request to the second mobile terminal; and the second mobile terminal is further configured to switch the Wi-Fi antenna working mode to SISO in response to the first switching request.

7 . The system according to claim 2 , wherein the specified value comprises a maximum access quantity supported by a Wi-Fi chip of the first mobile terminal.

8 . A chip system, comprising a processor and a wireless fidelity (Wi-Fi) chip, wherein the chip system is disposed in a first mobile terminal,
the Wi-Fi chip is configured to: after a wireless hotspot function is enabled, establish a wireless fidelity (Wi-Fi) connection to a second mobile terminal, and transmit data to the second mobile terminal in a multiple-input multiple-output (MIMO) Wi-Fi antenna working mode in which a Wi-Fi antenna working mode is set to MIMO; the processor is configured to: after the wireless hotspot function is enabled, indicate a power management module to monitor a remaining battery level of the first mobile terminal, and/or indicate a temperature sensor to monitor a device temperature of the first mobile terminal; and upon determining that the remaining battery level is less than a first battery level threshold and/or the device temperature is greater than a first device temperature threshold, send a first instruction to the Wi-Fi chip; and the Wi-Fi chip is further configured to: in response to the first instruction, switch the Wi-Fi antenna working mode to single-input single-output (SISO), limit a maximum forwarding rate of a TCP packet or a UDP packet to a first rate, and/or stop responding to a probe request.

9 . The chip system according to claim 8 , wherein the processor is further configured to:
upon determining that a quantity of terminal devices connected to the first mobile terminal through Wi-Fi reaches a specified value, send a second instruction to the Wi-Fi chip; and the Wi-Fi chip is further configured to stop responding to the probe request in response to the second instruction.

10 . The chip system according to claim 8 , wherein the processor is further configured to:
upon determining that the remaining battery level is less than a second battery level threshold, send a third instruction to the Wi-Fi chip; and the Wi-Fi chip is further configured to limit the maximum forwarding rate of the TCP packet or the UDP packet to a second rate in response to the third instruction, wherein the second battery level threshold is less than the first battery level threshold, and the second rate is less than the first rate.

11 . The chip system according to claim 8 , wherein the processor is further configured to:
upon determining that the device temperature is greater than a second temperature threshold, send a fourth instruction to the Wi-Fi chip; and the Wi-Fi chip is further configured to limit the maximum forwarding rate of the TCP packet or the UDP packet to a second rate in response to the fourth instruction, wherein the second temperature threshold is greater than the first device temperature threshold, and the second rate is less than the first rate.

12 . The chip system according to claim 8 , wherein the processor is further configured to:
upon detecting that a preset high power consumption application is running, send a fifth instruction to the Wi-Fi chip; and the Wi-Fi chip is further configured to: in response to the fifth instruction, switch the Wi-Fi antenna working mode to SISO, limit the maximum forwarding rate of the TCP packet or the UDP packet to the first rate, and/or stop responding to the probe request.

13 . The chip system according to claim 8 , wherein the processor is further configured to:
before the Wi-Fi chip switches the Wi-Fi antenna working mode to SISO, send a sixth instruction to the Wi-Fi chip; and the Wi-Fi chip is further configured to send a first switching request to the second mobile terminal in response to the sixth instruction, wherein the first switching request requests the second mobile terminal to switch the Wi-Fi antenna working mode to SISO.

14 . The chip system according to claim 9 , wherein the specified value comprises a maximum access quantity supported by the Wi-Fi chip.

15 . A device control method, comprising:
after enabling a wireless hotspot function, establishing, by a first mobile terminal, a wireless fidelity (Wi-Fi) connection to a second mobile terminal, and transmitting data to the second mobile terminal in a multiple-input multiple-output (MIMO) Wi-Fi antenna working mode in which a Wi-Fi antenna working mode is set to MIMO, wherein the second mobile terminal is configured to access the internet by using the first mobile terminal connected through Wi-Fi; monitoring, by the first mobile terminal, a remaining battery level and/or a device temperature of the first mobile terminal; and upon determining that the remaining battery level is less than a first battery level threshold and/or the device temperat

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhou Ming
• Lu Junxin
• Wang Shaolong

Classifications

• H04W76/14

  Direct-mode setup · CPC title

• H04W88/06

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title

• H04B7/0413

  MIMO systems · CPC title

• H04B7/0404

  the mobile station comprising multiple antennas, e.g. to provide uplink diversity · CPC title

• H04B7/0689

  using different transmission schemes, at least one of them being a diversity transmission scheme · CPC title