Radio frequency front-end system, signal transmission control method, and mobile terminal
First Claim
1. A radio frequency front-end system, comprising:
- a first antenna;
a second antenna;
a first switch coupled to the first antenna;
a first radio frequency circuit;
a first gating circuit coupled between the first radio frequency circuit and the first switch;
a second switch coupled to the second antenna and to the first switch;
a second radio frequency circuit;
a second gating circuit coupled between the second radio frequency circuit and the second switch, the second switch coupled between the second gating circuit and the second antenna; and
a controller coupled to the first switch, to the second switch, to the first radio frequency circuit, to the first gating circuit, to the second gating circuit, and to the second radio frequency circuit, the controller configured to;
acquire a transmission frequency band selected by the first radio frequency circuit; and
control the first switch and the second switch to connect the first radio frequency circuit to the second antenna, and to control the first switch and the second switch to cause the second radio frequency circuit to be disconnected from the second antenna, in response to determining that a frequency in the transmission frequency band is less than a preset frequency.
3 Assignments
0 Petitions
Accused Products
Abstract
Embodiments disclose a radio frequency front-end system and a signal transmission control method. The system includes a first antenna, a second antenna, a first radio frequency circuit, a second radio frequency circuit, and a controller. The controller is configured to acquire a transmission frequency band selected by the first radio frequency circuit, and when a frequency in the transmission frequency band selected by the first radio frequency circuit is less than a preset frequency, to control the first radio frequency circuit to connect to the second antenna. The controller is further configured to disconnect a connection between the second radio frequency circuit and the second antenna, or to maintain an open circuit state between the second radio frequency circuit and the second antenna.
8 Citations
13 Claims
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1. A radio frequency front-end system, comprising:
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a first antenna; a second antenna; a first switch coupled to the first antenna; a first radio frequency circuit; a first gating circuit coupled between the first radio frequency circuit and the first switch; a second switch coupled to the second antenna and to the first switch; a second radio frequency circuit; a second gating circuit coupled between the second radio frequency circuit and the second switch, the second switch coupled between the second gating circuit and the second antenna; and a controller coupled to the first switch, to the second switch, to the first radio frequency circuit, to the first gating circuit, to the second gating circuit, and to the second radio frequency circuit, the controller configured to; acquire a transmission frequency band selected by the first radio frequency circuit; and control the first switch and the second switch to connect the first radio frequency circuit to the second antenna, and to control the first switch and the second switch to cause the second radio frequency circuit to be disconnected from the second antenna, in response to determining that a frequency in the transmission frequency band is less than a preset frequency. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method in a radio frequency front-end system, wherein the radio frequency front-end system comprises a first antenna, a second antenna, a first radio frequency circuit, a second radio frequency circuit, a first gating circuit, a second gating circuit, and a controller, wherein the controller is coupled to a first switch, to a second switch, to the first radio frequency circuit, to the first gating circuit, to the second gating circuit, and to a second radio frequency circuit, wherein the first switch is coupled to a first antenna, wherein the first gating circuit is coupled between the first switch and the first radio frequency circuit, wherein the second switch is coupled to the second antenna and to the first switch, and wherein the second gating circuit is coupled between the second switch and the second radio frequency circuit, and wherein the method comprises:
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acquiring, by the controller, a transmission frequency band selected by a first radio frequency circuit; determining, by the controller, whether a frequency in the transmission frequency band is less than a preset frequency; and controlling the first switch and the second switch to connect the first radio frequency circuit to the second antenna, and to control the first switch and the second switch to cause the second radio frequency circuit to be disconnected from the second antenna, in response to determining that the frequency in the transmission frequency band is less than a preset frequency. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification