Wireless communication apparatus and antenna switching method thereof
AssigneeHTC Corporation
InventorsWei-Yang Wu, Tiao-Hsing Tsai
Life of this patent
Estimating the term…
Abstract
The invention provides an antenna switching method for a wireless communication apparatus. The wireless communication apparatus includes a first antenna, a second antenna, a first modem, a switch, and a second modem. The first modem generates a control signal; the switch is coupled to the first antenna, the second antenna, the first modem, and the second modem. The switch receives the control signal and performs switching according to the control signal to make the first antenna to be coupled to one of the first modem and the second modem, and to make the second antenna to be coupled to the other one of the first modem and the second modem.
Claims16
A wireless communication apparatus, comprising:
- a first antenna;
- a second antenna;
- a first modem, generating a control signal;
- a second modem;
- a switch, coupled to the first antenna, the second antenna, the first modem and the second modem, the switch receiving the control signal and performing switching according to the control signal, making the first antenna to be coupled to one of the first modem and the second modem, and making the second antenna to be coupled to the other one of the first modem and the second modem;
- a first power amplifier, coupled between the first modem and the switch, the first power amplifier receiving a first enabling signal to turn on or off according to the first enabling signal;
- and
- a second power amplifier, coupled between the second modem and the switch, the second power amplifier receiving a second enabling signal to turn on or off according to the second enabling signal, wherein the first enabling signal and the second enabling signal are generated by the first modem,
- wherein the second enabling signal has a higher priority than the third enabling signal, when both of the first and second modems are keeping running, the second enabling signal instructs to stop the second power amplifier and the second power amplifier is stopped regardless whether the third enabling signal is enabled or not.
An antenna switching method for a wireless communication apparatus, comprising:
- generating a control signal via a first modem;
- receiving the control signal via a switch which performs a switching action according to the control signal, making a first antenna to be coupled to one of the first modem and a second modem, and making a second antenna to be coupled to the other one of the first modem and the second modem;
- before the switch performs switching according to the control signal, generating the first enabling signal and the second enabling signal to respectively turn off a first power amplifier and a second power amplifier via the first modem, wherein the first power amplifier is coupled to the first modem, and the second power amplifier is coupled to the second modem;
- and
- after the switch completes switching, enabling the first power amplifier and the second power amplifier respectively by the first modem via the first enabling signal and the second enabling signal,
- wherein, when both of the first and second modems are keeping running, the second enabling signal instructs to stop the second power amplifier, and the second power amplifier is stopped regardless whether the third enabling signal is enabled or not.
Dependencies are inferred from the claim text.