A multi-band mobile communication radio frequency transceiver
A radio frequency transceiver, mobile communication technology, applied in transmission systems, electrical components, etc., can solve problems such as high cost, high technical difficulty, and large volume, so as to reduce design complexity, solve high technical difficulty, and avoid RF combining with shunt effect
Active Publication Date: 2020-06-09
BEIJING INST OF AEROSPACE CONTROL DEVICES
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Problems solved by technology
[0007] In order to solve the problems of multi-band mobile communication transceivers in the prior art, especially multi-channel adjacent frequency bands, such as high technical difficulty, large size, and high cost, reduce the cost of multi-band mobile communication transceivers, especially analog filter devices such as combiners and filters. Design complexity, the present invention proposes a mobile communication radio frequency transceiver with multiple frequency bands, especially multiple adjacent frequency bands, and completes the branching and combining of multiple adjacent frequency band signals in the baseband processing part, thereby overcoming or solving the above problems
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[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0044] like figure 2 As shown, the present invention proposes a multi-band mobile communication radio frequency transceiver, including a baseband processing module 1 (n) (wherein, n=1, 2, 3...), a baseband radio frequency conversion module 2 (n) (wherein, n=1,2,3...), RF front-end module 3(n) (wherein, n=1,2,3...), multiplexer 4 and transceiver antenna 5;
[0045] In the receiving link, the transceiver antenna receives mobile communication signals and sends them to the multiplexer, the multiplexer filters out-of-band interference signals and spurious signals, performs frequency selection and branching, and sends them to the RF front-end module of the corresponding frequency band. The RF front-end module transmits the RF signal to the baseband RF conversion module after performing low-noise amplification, filtering, and gain control. The pro...
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A multi-band mobile communication radio frequency transceiver comprises a baseband processing module, a baseband radio frequency conversion module, a radio frequency front-end module, a multiplexer and a transceiver antenna. The multi-band mobile communication radio frequency transceiver comprises a baseband processing module, a baseband radio frequency conversion module, a radio frequency front-end module, a multiplexer and a transceiver antenna. In a receive link, the antenna receives the signal and sends it to the multiplexer for frequency selection and demultiplexing, then, it is sent intothe RF front-end module for low noise amplification, filtering and gain control, and is transmitted to the baseband RF conversion module for conversion into baseband signals. Finally, the baseband processing module performs frequency selective filtering to generate service data of a plurality of adjacent frequency bands, thereby completing the reception of mobile communication signals of the adjacent frequency bands. In a transmit link, the baseband processing module performs digital baseband combining on the service data of a plurality of adjacent frequency bands, a combined service data isgenerated and transmitted to a baseband radio frequency conversion module for conversion into radio frequency signals, which are then sent to a radio frequency front-end module for filtering, gain control and power amplification, which are sent to a multiplexer combination, and transmitted through a transmitting / receiving antenna to complete the transmission of mobile communication signals in adjacent frequency bands.
Description
technical field [0001] The invention relates to a multi-band mobile communication radio frequency transceiver, which belongs to the technical field of mobile communication. Background technique [0002] With the development of mobile communication, the information capacity and communication rate continue to increase, and the frequency bandwidth occupied by transmission is also increasing rapidly. However, the radio frequency spectrum is a non-renewable scarce resource. In order to maximize the utilization of spectrum resources and meet the needs of the 3GPP organization (3 rd The international communication frequency band standard formulated by the Generation Partnership Project, the country has divided and authorized the frequency spectrum, taking the Band3 transmission frequency band as an example, the three major operators of China Mobile, China Unicom, and China Telecom have respectively obtained 1805MHz~1830MHz, 1830MHz~1860MHz, The right to use 1860MHz~1880MHz. It i...
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IPC IPC(8): H04B1/00H04B1/40
CPCH04B1/005H04B1/40
Inventor 陈远航姚宜东刘晓滨李文王杰
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES