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LTE RF transceiver circuit compatible with TDD and FDD

A technology of radio frequency transceiver circuit and radio frequency path, which is applied in the field of communication and can solve problems such as complex structure of LTE radio frequency transceiver circuit

Active Publication Date: 2017-10-27
COMBA TELECOM SYST CHINA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a simple structure compatible TDD and FDD LTE radio frequency transceiver circuit

Method used

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  • LTE RF transceiver circuit compatible with TDD and FDD
  • LTE RF transceiver circuit compatible with TDD and FDD
  • LTE RF transceiver circuit compatible with TDD and FDD

Examples

Experimental program
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Embodiment Construction

[0017] Such as figure 1 As shown, a LTE radio frequency transceiver circuit compatible with TDD and FDD includes an antenna 100, a selection component set, a duplex component 300, a filter component 400, an isolation component 500, a first radio frequency switch 600, a second radio frequency switch 700, a radio frequency receiving Circuit 800 and radio frequency transmitting circuit 900;

[0018] The selection component set includes a first selection component 210, a second selection component 220, a third selection component 230, a fourth selection component 240, a fifth selection component 250, a sixth selection component 260 and a seventh selection component 270, and each selection component in the selection component set The selection component is respectively provided with a first interface, a second interface and a third interface;

[0019] The antenna 100 is connected to the first interface of the first selection component 210, the second interface of the first selecti...

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Abstract

The invention provides an LTE RF (radio frequency) transceiver circuit compatible with TDD and FDD. The circuit comprises an antenna, a selection component set, a duplex module, a filtering module, an isolation module, an RF receiving circuit and an RF transmitting circuit. The selection component set comprises multiple selection modules. In a TDD mode, the first interface of each selection component is in conductive connection with a corresponding third interface. In an FDD mode, the first interface of each selection module in the selection component set is in conductive connection with a corresponding second interface. The LTE RF transceiving compatible with TDD and FDD can be realized without a complex circuit structure. In addition, for each interface of the selection module, different models of duplex modules, filtering modules, isolation modules, RF receiving circuits and RF transmitting circuits can be connected or replaced according to needs, and the LTE wireless transceiving requirements of multiple frequency applications under the TDD and FDD modes are satisfied.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an LTE (Long Term Evolution, Long Term Evolution) radio frequency transceiver circuit compatible with TDD (Time Division Duplexing, Time Division Duplexing) and FDD (Frequency Division Duplexing, Frequency Division Duplexing). Background technique [0002] With the development of 4G-LTE mobile communication networks, the demand for low-power hotspot coverage has increased sharply, and in the case of wireless spectrum diversification and different modes that can be selected, low-power The demand for an LTE radio frequency transceiver with low cost and small size is becoming more and more urgent. In order to save the design cost of RF hardware and reduce the design cycle of RF hardware, the RF transceiver of LTE communication equipment is not only required to be compatible with frequency division duplex mode and time division duplex mode, but also to support multiple operati...

Claims

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Application Information

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IPC IPC(8): H04B1/40H04L5/14
CPCH04B1/40H04B1/401H04L5/14H04L5/1469
Inventor 郑耀华钟伟东范莉
Owner COMBA TELECOM SYST CHINA LTD
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