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Dual-mode radio frequency transceiver, filtering device and dual-mode terminal

A technology of a transceiver device and a filter device, which is applied in the field of mobile communication and can solve the problem of low integration of dual-mode radio frequency transceiver devices.

Inactive Publication Date: 2012-04-04
ZTE CORP
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a dual-mode radio frequency transceiver device, a filter device and a dual-mode terminal to solve the problem of low integration of existing dual-mode radio frequency transceiver devices

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  • Dual-mode radio frequency transceiver, filtering device and dual-mode terminal
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  • Dual-mode radio frequency transceiver, filtering device and dual-mode terminal

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Embodiment Construction

[0033] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0034] An embodiment of the present invention provides a dual-mode radio frequency transceiver device, which is applied to the receiving path of a dual-mode terminal. The multi-mode radio frequency transceiver device includes at least one low A noise amplifier (LNA): the LNA is configured to receive signals in corresponding frequency bands of the first mode signal and the second mode signal in a time-division multiplexed manner, amplify the received signals and output them.

[0035] Wherein, the first mode signal may be a Global System for Mobile Communications (GSM) signal, ...

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Abstract

The invention provides a dual-mode radio frequency transceiver, a filtering device and a dual-mode terminal. A multi-mode radio frequency transceiver at least comprises an LNA (Low-Noise Amplifier), wherein the LNA is provided for the same frequency band of a first mode signal and a second mode signal, is used for receiving signals of corresponding frequency bands of the first mode signal and the second mode signal in a time division multiplexing manner and outputting the received signal after amplification. As the LNA is a multiplexing LNA, the number of LNAs in the dual-mode radio frequency transceiver is reduced, so that the dual-mode radio frequency transceiver can be integrated to a larger extent, and layout space is increased; and therefore, a multi-mode terminal including the dual-mode radio frequency transceiver has higher integration, and the miniaturization of the terminal is more beneficial to being realized.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a dual-mode radio frequency transceiver device, a filtering device and a dual-mode terminal. Background technique [0002] At present, in the architecture scheme of the RF transceiver chip for dual-mode terminals, due to the inconsistent modulation and coding methods adopted by different countries and regions, such as the use of Code Division Multiple Access (CDMA), the use of broadband code division multiple access The access mode (Wideband Code Division Multiple Access, WCDMA) adopts frequency division multiple access, time division multiple access, Global System for Mobile Communications (GSM) modulation mode, etc. These coding methods are divided into several frequency bands such as 850, 900, 1800, and 1900. Therefore, in order to meet the needs of different countries and regions, in general, the RF transceiver chip contains multiple sets of low-noise amplifiers (LNA) to rec...

Claims

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Application Information

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IPC IPC(8): H04W88/06H04B1/40
CPCH04B1/06H04B1/0057H04B1/18
Inventor 房建民杜天波
Owner ZTE CORP
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