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A transceiver separation circuit, transceiver and wireless communication device

A technology for separating circuits and circuits, applied in electrical components, transmission systems, etc., can solve the problems of reducing the transmission efficiency of TDD mode communication equipment and increasing the loss of transmission channels

Active Publication Date: 2022-07-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above switching circuit introduces a switch on the main transmission channel, which increases the loss of the transmission channel and reduces the transmission efficiency of TDD mode communication equipment

Method used

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  • A transceiver separation circuit, transceiver and wireless communication device
  • A transceiver separation circuit, transceiver and wireless communication device
  • A transceiver separation circuit, transceiver and wireless communication device

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Embodiment Construction

[0048] In order to avoid the mutual interference between the transmit channel and the receive channel, the TDD mode communication device isolates the transceiver through the switch circuit. However, the existing switch circuit for transceiver isolation introduces a switch on the main transmission channel of the TDD mode communication device, which increases the loss of the transmission channel and reduces the transmission efficiency of the TDD mode communication device. In order to solve this problem in the prior art, the present application proposes a transceiver separation circuit, a transceiver, and a wireless communication device, which realizes transceiver isolation by not introducing a switch on the transmitting main channel.

[0049] In addition, it should be understood that in the description of this application, "plurality" refers to two or more than two; words such as "first" and "second" are only used for the purpose of distinguishing and describing, and should not b...

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PUM

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Abstract

A transceiver separation circuit, a transceiver and a wireless communication device, the transceiver separation circuit comprises: a transmission amplifier circuit, an impedance adjustment circuit and a reception amplifier circuit, the output end of the transmission amplifier circuit is connected to the first end of the impedance adjustment circuit, and the impedance adjustment circuit The second end of the circuit is connected to the input end of the receiving amplifying circuit, the second end of the impedance adjusting circuit and the input end of the receiving and amplifying circuit are also used to connect the antenna; the transmitting and amplifying circuit is used to amplify the first signal to be transmitted through the antenna; The amplifying circuit is used for amplifying the second signal received through the antenna, and when the antenna transmits the amplified first signal, the first impedance is in a high impedance state, and the first impedance is the impedance seen from the input port of the receiving amplifying circuit; The impedance adjustment circuit is configured to adjust the second impedance to a high impedance state when the antenna receives the second signal, and the second impedance is an impedance viewed from the second end of the impedance adjustment circuit.

Description

technical field [0001] The present application relates to the field of wireless communication technologies, and in particular, to a transceiver separation circuit, a transceiver, and a wireless communication device. Background technique [0002] Time division duplexing (TDD) technology is a full-duplex communication technology used in mobile communication systems, and signals are received and transmitted in different time slots of the same frequency channel. In order to avoid mutual interference between the transmitting channel and the receiving channel, the TDD mode communication device can be isolated from the transceiver through the switch circuit. [0003] The principle of transmitting and receiving isolation of TDD mode communication equipment through the switch circuit is as follows: figure 1 As shown, in the transmission time slot, the output port of the power amplifier (PA) at the transmitting end in the TDD mode communication device is connected to the antenna thro...

Claims

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Application Information

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IPC IPC(8): H04B1/40
CPCH04B1/44H04B1/0458H04B1/04H04B2001/0408
Inventor 孙捷曾志雄
Owner HUAWEI TECH CO LTD