Multi-mode radio frequency receiving and processing chip and multi-mode terminal

A multi-mode radio frequency and processing chip technology, which is applied in the field of multi-mode radio frequency receiving and processing chips, multi-mode terminals and multi-mode terminal receiving signals, can solve the problem of occupying a large PCB area, and achieve the effect of reducing area and quantity

Inactive Publication Date: 2012-04-04
ZTE CORP
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[0007] The embodiment of the present invention provides a multi-mode radio frequency receiving and processing chip, a multi-mode terminal and a method for receiving sig

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  • Multi-mode radio frequency receiving and processing chip and multi-mode terminal
  • Multi-mode radio frequency receiving and processing chip and multi-mode terminal
  • Multi-mode radio frequency receiving and processing chip and multi-mode terminal

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[0037] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other arbitrarily if there is no conflict.

[0038] The embodiment of the present invention provides a multi-mode radio frequency receiving and processing chip, which is applied to the receiving channel of a multi-mode terminal. The multi-mode radio frequency receiving and processing chip includes a filter module, a frequency conversion processing module and an amplification module connected in sequence, wherein:

[0039] The filtering module is configured to receive signals in various modes and filter out-of-band noise of the signals;

[0040] The frequency conversion processing module is configured to perform mixing and frequency conver...

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Abstract

The invention provides a multi-mode radio frequency receiving and processing chip, a multi-mode terminal and a signal receiving method of the multi-mode terminal. The multi-mode radio frequency receiving and processing chip is applied to a receiving passageway of the multi-mode terminal and comprises a filtering module, a variable-frequency processing module and an amplifying module which are connected with one another in sequence, wherein the filtering module is used for receiving signals in respective modes and filtering out-of-band noise of the signal; the variable-frequency processing module is used for mixing and varying frequencies of the signals of filtering the out-of-band noise of the filtering module; and the amplifying module is used for amplifying and outputting the signal of the noise produced when the variable frequency of the variable-frequency processing module is filtered. When the multi-mode radio frequency receiving and processing chip and the multi-mode terminal including the same are adopted, the number of internal devices of the chip is effectively reduced, and occupied area of a PCB (Printed Circuit Board) is greatly reduced.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a multi-mode radio frequency receiving and processing chip, a multi-mode terminal and a method for receiving signals by the multi-mode terminal. Background technique [0002] At present, there are many different wireless communication systems in the field of telecommunications, each of which adopts its own communication standards, and the operating frequencies and operating modes of different communication standards are different. For example, the second-generation communication standard Global Mobile Communication system (Global System for Mobile Communication, GSM), and the third-generation communication standard Wideband Code Division Multiple Access (WCDMA) system that is being promoted globally. In order to enable the terminal to be used all over the world, it must support various communication standards at the same time. At present, the most commonly used terminal is a ter...

Claims

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Application Information

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IPC IPC(8): H04W88/06H04B1/16
CPCH04B1/0057H04B1/16H04B1/18H04B1/0053H04B1/1027
Inventor 杜天波房建民毛建华
Owner ZTE CORP
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