Radio frequency front end circuit and mobile terminal equipment

Abstract

The invention provides a radio frequency front end circuit and mobile terminal equipment. The radio frequency front end circuit comprises a WCN antenna, a diversity reception antenna, a GPS radio frequency path, a WCN transceiver and a selector switch, wherein the WCN antenna is connected with the first end of the selector switch, the diversity reception antenna is connected with the second end ofthe selector switch, and the WCN transceiver is connected with the third end of the selector switch via the GPS radio frequency path; and when a GPS positioning function of the mobile terminal equipment is opened, the WCN antenna is used for receiving GPS signal when the selector switch is changed to be connected with the WCN antenna, and the diversity reception antenna is used for receiving theGPS signals when the selector switch is changed to be connected with the diversity reception antenna, the received GPS signals are transmitted to the WCN transceiver via the GPS radio frequency path.According to the technical scheme, the diversity reception antenna of the mobile terminal equipment is reused for receiving the GPS signals, so that the directionality of the GPS signals is effectively improved, and thus the reception quality of the GPS signals is improved.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular, to a radio frequency front-end circuit and a mobile terminal device. Background technique [0002] At present, with the popularization of mobile terminal equipment such as mobile phones and the increasingly wide application of positioning information, the requirements for positioning speed and accuracy of satellite positioning systems in complex scenarios are also getting higher and higher. The strength and quality of the GPS (Global Position System, Global Positioning System) signal received by the front-end radio frequency path pose challenges. [0003] GPS satellite signals are characterized by weak strength, low signal-to-noise ratio, and multipath effects. The receiver is sensitive to signal loss and noise. When the antenna directionality is not good, it is easy to cause the strength and signal-to-noise ratio of GPS signals to fluctuate. A drop of several dB wil...

AI Technical Summary

Problems solved by technology

[0002] At present, with the popularization of mobile terminal equipment such as mobile phones and the increasingly wide application of positioning information, the requirements for positioning speed and accuracy of satellite positioning systems in complex scenarios are also getting higher and higher. The strength and quality of the GPS (Global Position System, Global Positioning System) signal received by the front-end RF path poses challenges

[0003] GPS satellite signals are characterized by weak strength, low signal-to-noise ratio, and multipath effects. The receiver is sensitive to signal loss and noise. When the antenna directionality is not good, it is easy to cause the strength and signal-to-noise ratio of GPS signals to fluctuate. A drop of several dB, which has a great impact on the positioning quality

[0004] Existing mobile terminal equipment usually only has one GPS antenna, and ...

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