Radio frequency communication system

Abstract

The present application provides a radio frequency communication system, comprising: a first power amplifier (PA), a first low noise amplifier (LNA), a second LNA, a first switch, a first filter, and a second filter. The first switch comprises a connecting end, a first switching end, and a second switching end; the first filter is connected to the connecting end of the first switch, an output end of the first PA is connected to the first switching end of the first switch, and an input end of the first LNA is connected to the second switching end of the first switch; the first switch is configured to connect the connecting end of the first switch to the first switching end of the first switch, or to connect the connecting end of the first switch to the second switching end of the first switch, so as to switch the first PA to a first transmit channel of the first filter and switch the first filter to a first receive channel of the first LNA; the second filter is connected to an input end of the second LNA to form a second receive channel. The radio frequency communication system provided by the present application can achieve flexible application of the spectrum of the radio frequency communication system.

Description

A radio frequency communication system

[0001] This application claims priority to the Chinese patent application No. 202410494299.4, filed on April 19, 2024, and entitled "A radio frequency communication system", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication, and more particularly, to a radio frequency communication system. BACKGROUND

[0003] With the evolution of IMT global mobile communication technology, the old spectrum allocation strategy may introduce new discussions to re-allocate new applications to support the continuous evolution of mobile communication technology.

[0004] The spectrum allocation strategy of the currently known radio frequency communication system is still frequency band specific. The frequency division duplex (FDD) frequency band is applied in the FDD communication mode, and the time division duplex (TDD) frequency band is applied in the TDD communication mode. Each frequency band segment must have an independent duplexer, filter, and corresponding switch and control circuit. For example, to support a traditional FDD frequency band, a dedicated duplexer is generally used to realize simultaneous transmission and reception at different frequencies. However, this specific frequency and duplex mode operation cannot be flexibly scheduled, which makes the spectrum allocation not flexible enough. Therefore, how to realize flexible spectrum application of the radio frequency communication system has become a problem to be solved. SUMMARY

[0005] The present application provides a radio frequency communication system capable of realizing flexible spectrum application of the radio frequency communication system.

[0006] In a first aspect, a radio frequency communication system is provided, comprising: a first power amplifier (PA), a first low noise amplifier (LNA), a second LNA, a first switch, a first filter, and a second filter. The first switch comprises a connection end, a first switching end, and a second switching end. The first filter is connected to the connection end of the first switch. The output end of the first PA is connected to the first switching end of the first switch. The input end of the first LNA is connected to the second switching end of the first switch. The first switch is used to connect the connection end of the first switch to the first switching end of the first switch or to connect the connection end of the first switch to the second switching end of the first switch, so as to switch a first transmission channel of the first PA to the first filter and a first reception channel of the first filter to the first LNA. The second filter is connected to the input end of the second LNA to form a second reception channel.

[0007] It should be understood that when the connection end of the first switch is connected with the first switching end of the first switch, the first transmitting channel of the first PA to the first filter and the second receiving channel of the second filter to the second LNA can work simultaneously in two frequency bands, that is, the radio frequency communication system supports working in the FDD Band1 mode; in addition, in the frequency band of the first filter, the first switch can switch the first transmitting channel of the first PA to the first filter and the first receiving channel of the first filter to the first LNA in different time slots, that is, the radio frequency communication system also supports the TDD communication mode of the TX frequency band.

[0008] The radio frequency communication system provided by the embodiments of the present application supports the TDD communication mode of the TX frequency band in the original FDD communication mode by adding the first switch and the first LNA, and realizes flexible application of the spectrum of the radio frequency communication system.

[0009] With reference to the first aspect, in some implementations of the first aspect, the radio frequency communication system further includes a second switch and a third switch, the second switch includes a connection end, a first switching end and a second switching end, the third switch includes a connection end, a first switching end and a second switching end, the output end of the first PA is connected with the connection end of the second switch, the first switching end of the first switch is connected with the first switching end of the second switch, the first switching end of the third switch is connected with the second switching end of the second switch, the input end of the second LNA is connected with the second switching end of the third switch, and the second filter is connected with the connection end of the third switch; the second switch is configured to connect the connection end of the second switch with the first switching end of the second switch or connect the connection end of the second switch with the second switching end of the second switch, so as to switch the first transmitting channel of the first PA to the first filter and the second transmitting channel of the first PA to the second filter; and the third switch is configured to connect the connection end of the third switch with the first switching end of the third switch or connect the connection end of the third switch with the second switching end of the third switch, so as to switch the second transmitting channel of the first PA to the second filter and the second receiving channel of the second filter to the second LNA.

[0010] The radio frequency communication system provided by the embodiments of the present application adds the second switch and the third switch, supports the TDD communication mode of the TX frequency band and the TDD communication mode of the RX frequency band in the original FDD communication mode, and realizes flexible application of the spectrum of the radio frequency communication system.

[0011] With reference to the first aspect, in some implementations of the first aspect, the radio frequency communication system further includes a first switch assembly and a first antenna module, and the first filter and the second filter are connected with the first antenna module through the first switch assembly.

[0012] With reference to the first aspect, in some implementations of the first aspect, the radio frequency communication system further includes a diversity receiving module, the diversity receiving module includes a fourth LNA, a fifth LNA, a fourth filter and a fifth filter, an input end of the fourth LNA is connected with the fourth filter to form a first diversity receiving channel, an input end of the fifth LNA is connected with the fifth filter to form a second diversity receiving channel; a frequency band of the fourth filter is the same as a frequency band of the first filter, and a frequency band of the fifth filter is the same as a frequency band of the second filter.

[0013] With reference to the first aspect, in some implementations of the first aspect, the radio frequency communication system further includes a second PA, a third LNA, a third filter and a fourth switch, the fourth switch includes a connection end, a first switching end and a second switching end, an output end of the second PA is connected with the first switching end of the fourth switch, an input end of the third LNA is connected with the second switching end of the fourth switch, and the third filter is connected with the connection end of the fourth switch; the fourth switch is configured to connect the connection end of the fourth switch with the first switching end of the fourth switch or connect the connection end of the fourth switch with the second switching end of the fourth switch, so as to switch a third transmitting channel of the second PA to the third filter and a third receiving channel of the third filter to the third LNA.

[0014] With reference to the first aspect, in some implementations of the first aspect, the radio frequency communication system further includes a first switch assembly and a first antenna module, the first filter, the second filter and the third filter are connected with the first antenna module through the first switch assembly.

[0015] With reference to the first aspect, in some implementations of the first aspect, the radio frequency communication system further includes a diversity receiving module, the diversity receiving module includes a fourth LNA, a fifth LNA, a sixth LNA, a fourth filter, a fifth filter and a sixth filter, an input end of the fourth LNA is connected with the fourth filter to form a first diversity receiving channel, an input end of the fifth LNA is connected with the fifth filter to form a second diversity receiving channel, and an input end of the sixth LNA is connected with the sixth filter to form a third diversity receiving channel; a frequency band of the fourth filter is the same as a frequency band of the first filter, a frequency band of the fifth filter is the same as a frequency band of the second filter, and a frequency band of the sixth filter is the same as a frequency band of the third filter.

[0016] With reference to the first aspect, in some implementations of the first aspect, the radio frequency communication system further includes a second switch assembly and a second antenna module, and the fourth filter, the fifth filter and the sixth filter are connected to the second antenna module through the second switch assembly.

[0017] With reference to the first aspect, in some implementations of the first aspect, the frequency band of the first filter is 1920-1980 MHz.

[0018] With reference to the first aspect, in some implementations of the first aspect, the frequency band of the second filter is 2110-2170 MHz.

[0019] With reference to the first aspect, in some implementations of the first aspect, the first switch is a single-pole double-throw switch or a multi-pole multi-throw switch.

[0020] With reference to the first aspect, in some implementations of the first aspect, the frequency band of the third filter is 1880-1920 MHz.

[0021] With reference to the first aspect, in some implementations of the first aspect, the radio frequency communication system further includes a modem and a radio frequency chip, and the input end of the first PA, the output end of the first LNA and the output end of the second LNA are connected to the radio frequency chip, and the radio frequency chip is connected to the modem.

[0022] The second aspect provides a radio frequency system, including: a first power amplifier (PA), a first low noise amplifier (LNA), a fifth switch, a sixth switch, a first filter and a second filter, the fifth switch includes a connection end, a first switching end and a second switching end, and the sixth switch includes a connection end, a first switching end and a second switching end; the output end of the first PA is connected to the connection end of the fifth switch, the first filter is connected to the first switching end of the fifth switch, the first switching end of the sixth switch is connected to the second switching end of the fifth switch, the input end of the first LNA is connected to the second switching end of the sixth switch, the second filter is connected to the connection end of the sixth switch, and the fifth switch is used to connect the connection end of the fifth switch to the first switching end of the fifth switch or the connection end of the fifth switch to the second switching end of the fifth switch, so as to switch a first transmission channel of the first PA to the first filter and a second transmission channel of the first PA to the second filter, and the sixth switch is used to connect the connection end of the sixth switch to the first switching end of the sixth switch or the connection end of the sixth switch to the second switching end of the sixth switch, so as to switch a second transmission channel of the first PA to the second filter and a first reception channel of the second filter to the first LNA.

[0023] It should be understood that when the connection end of the fifth switch is in communication with the first switching end of the fifth switch and the connection end of the sixth switch is in communication with the second switching end of the sixth switch, the first transmission channel of the first PA to the first filter and the first reception channel of the second filter to the first LNA can work simultaneously in two frequency bands, that is, the radio frequency communication system supports working in the FDD Band1 mode; meanwhile, in the frequency band of the second filter, when the connection end of the fifth switch is in communication with the second switching end of the fifth switch, the sixth switch switches the second transmission channel of the first PA to the second filter and the first reception channel of the second filter to the first LNA in different time slots, that is, the radio frequency communication system also supports the TDD communication mode of the RX frequency band.

[0024] The radio frequency communication system provided by the embodiments of the present application increases the fifth switch and the sixth switch, supports the TDD communication mode of the RX frequency band in the FDD communication mode, and realizes flexible application of the spectrum of the radio frequency communication system.

[0025] With reference to the second aspect, in some implementations of the second aspect, the radio frequency communication system further includes a seventh switch and a second LNA, the seventh switch includes a connection end, a first switching end and a second switching end, the first filter is connected with the connection end of the seventh switch, the first switching end of the fifth switch is connected with the first switching end of the seventh switch, and the second LNA is connected with the second switching end of the seventh switch; the seventh switch is configured to communicate the connection end of the seventh switch with the first switching end of the seventh switch or communicate the connection end of the seventh switch with the second switching end of the seventh switch, so as to switch the first transmission channel of the first PA to the first filter and the second reception channel of the first filter to the second LNA.

[0026] With reference to the second aspect, in some implementations of the second aspect, the radio frequency communication system further includes a first switch assembly and a first antenna module, and the first filter and the second filter are connected with the first antenna module through the first switch assembly.

[0027] With reference to the second aspect, in some implementations of the second aspect, the radio frequency communication system further includes a diversity reception module, the diversity reception module includes a fifth LNA and a fifth filter, an input end of the fifth LNA is connected with the fifth filter to form a second diversity reception channel; and the frequency band of the fifth filter is the same as the frequency band of the second filter.

[0028] With reference to the second aspect, in some implementations of the second aspect, the radio frequency communication system further comprises a second PA, a third LNA, a third filter and a fourth switch, the fourth switch comprises a connection end, a first switching end and a second switching end, an output end of the second PA is connected with the first switching end of the fourth switch, an input end of the third LNA is connected with the second switching end of the fourth switch, and the third filter is connected with the connection end of the fourth switch; the fourth switch is configured to connect the connection end of the fourth switch with the first switching end of the fourth switch or connect the connection end of the fourth switch with the second switching end of the fourth switch, so as to switch the third transmission channel of the second PA to the third filter and the third reception channel of the third filter to the third LNA.

[0029] With reference to the second aspect, in some implementations of the second aspect, the radio frequency communication system further comprises a first switch assembly and a first antenna module, and the first filter, the second filter and the third filter are connected with the first antenna module through the first switch assembly.

[0030] With reference to the second aspect, in some implementations of the second aspect, the radio frequency communication system further comprises a diversity reception module, the diversity reception module comprises a fourth LNA, a fifth LNA, a sixth LNA, a fourth filter, a fifth filter and a sixth filter, an input end of the fourth LNA is connected with the fourth filter to form a first diversity reception channel, an input end of the fifth LNA is connected with the fifth filter to form a second diversity reception channel, and an input end of the sixth LNA is connected with the sixth filter to form a third diversity reception channel; a frequency band of the fourth filter is the same as a frequency band of the first filter, a frequency band of the fifth filter is the same as a frequency band of the second filter, and a frequency band of the sixth filter is the same as a frequency band of the third filter.

[0031] With reference to the second aspect, in some implementations of the second aspect, the radio frequency communication system further comprises a second switch assembly and a second antenna module, and the fourth filter, the fifth filter or the sixth filter are connected with the second antenna module through the second switch assembly.

[0032] With reference to the second aspect, in some implementations of the second aspect, a frequency band of the first filter is 1920-1980MHz.

[0033] With reference to the second aspect, in some implementations of the second aspect, a frequency band of the second filter is 2110-2170MHz.

[0034] With reference to the second aspect, in some implementations of the second aspect, the fifth switch or the sixth switch is a single-pole double-throw switch or a multi-pole multi-throw switch.

[0035] With reference to the second aspect, in some implementations of the second aspect, the frequency band of the third filter is 1880-1920 MHz.

[0036] With reference to the second aspect, in some implementations of the second aspect, the radio frequency communication system further comprises a modem and a radio frequency chip, the input end of the first PA, the output end of the first LNA and the output end of the second LNA are connected with the radio frequency chip, and the radio frequency chip is connected with the modem.

[0037] The third aspect provides a radio frequency communication system, comprising: a first power amplifier (PA), a first low noise amplifier (LNA), an eighth switch, a ninth switch, a first filter and a second filter, the eighth switch comprises a connection end, a first switching end and a second switching end, the ninth switch comprises a connection end, a first switching end and a second switching end; the first filter is connected with the connection end of the eighth switch, the output end of the first PA is connected with the first switching end of the eighth switch, the first switching end of the ninth switch is connected with the second switching end of the eighth switch, the second filter is connected with the second switching end of the ninth switch, the input end of the first LNA is connected with the connection end of the ninth switch, and the eighth switch is used to connect the connection end of the eighth switch with the first switching end of the eighth switch or the connection end of the eighth switch with the second switching end of the eighth switch, so as to switch the first transmission channel of the first PA to the first filter and the first reception channel of the first filter to the first LNA, and the ninth switch is used to connect the connection end of the ninth switch with the first switching end of the ninth switch or the connection end of the ninth switch with the second switching end of the ninth switch, so as to switch the first reception channel of the first filter to the first LNA and the second reception channel of the second filter to the first LNA.

[0038] It should be understood that when the connection end of the eighth switch is connected with the first switching end of the eighth switch and the connection end of the ninth switch is connected with the second switching end of the ninth switch, the first transmission channel of the first PA to the first filter and the second reception channel of the second filter to the first LNA can work at the same time under two frequency bands, that is, the radio frequency communication system supports working in the FDD Band1 mode; at the same time, under the frequency band of the first filter, when the connection end of the ninth switch is connected with the first switching end of the ninth switch, the eighth switch switches the first transmission channel of the first PA to the first filter and the first reception channel of the first filter to the first LNA in different time slots, that is, the radio frequency communication system also supports the TDD communication mode of the TX frequency band.

[0039] The radio frequency communication system provided by the embodiment of the present application adds the eighth switch and the ninth switch, supports the TDD communication mode of the TX frequency band in the original FDD communication mode, and realizes flexible application of the spectrum of the radio frequency communication system.

[0040] With reference to the third aspect, in some implementations of the third aspect, the eighth switch or the ninth switch is a single-pole double-throw switch or a multi-pole multi-throw switch. BRIEF DESCRIPTION OF DRAWINGS

[0041] FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the present application.

[0042] FIG. 2 is a schematic diagram of a radio frequency communication system according to an embodiment of the present application.

[0043] FIG. 3 is a schematic diagram of a radio frequency communication system according to an embodiment of the present application.

[0044] FIG. 4 is a schematic diagram of a radio frequency communication system according to an embodiment of the present application.

[0045] FIG. 5 is a schematic diagram of a radio frequency communication system according to an embodiment of the present application.

[0046] FIG. 6 is a schematic diagram of a radio frequency communication system according to an embodiment of the present application.

[0047] FIG. 7 is a schematic diagram of a radio frequency communication system according to an embodiment of the present application.

[0048] FIG. 8 is a schematic diagram of a radio frequency communication system according to an embodiment of the present application.

[0049] FIG. 9 is a schematic diagram of a radio frequency communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0050] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0051] FIG. 1 is a schematic diagram of an internal circuit of an electronic device according to an embodiment of the present application.

[0052] As shown in FIG. 1, the electronic device can include an application processor (AP), a baseband module, a digital-to-analog converter, a radio frequency module, and an antenna module.

[0053] The application processor can be used to run an open operating system and various applications on the operating system, and is responsible for the control of the entire system. In the process of transmitting signals to the outside, the application processor can transmit digital signals, such as voice signals, to the baseband module.

[0054] The baseband module can be used to encode and modulate the received digital signal, for example, in the process of transmitting the electrical signal to the outside, the baseband module encodes and modulates the digital signal to make the space occupied by the information in the digital signal smaller, and can resist the interference and attenuation in the channel, and improve the link performance.

[0055] The digital-to-analog converter can be used to convert the digital signal output by the baseband module into an analog signal for processing by the radio frequency module. Alternatively, the analog signal output by the radio frequency module can be converted into a digital signal for processing by the baseband module.

[0056] The radio frequency module can be used to modulate the frequency of the received electrical signal and amplify the power. For example, in the process of transmitting the electrical signal to the outside, the radio frequency module modulates the analog signal from a low frequency to a specified high frequency band to become a radio frequency signal that can be transmitted in the air, and amplifies the power of the radio frequency signal to meet the communication requirements.

[0057] The antenna module can be used to transmit the radio frequency signal processed by the radio frequency module to the outside, or receive the external electromagnetic wave signal and transmit it to the radio frequency module.

[0058] FIGS. 2 and 3 are schematic diagrams of a radio frequency communication system according to an embodiment of the present application. As shown in FIG. 2, the radio frequency communication system can include a modem, a radio frequency chip (RF IC), a radio frequency front-end circuit, and an antenna module.

[0059] The radio frequency chip can be used to modulate and demodulate the radio frequency signal, and can up-convert (increase the frequency of the radio frequency signal) and down-convert (decrease the frequency of the radio frequency signal) the radio frequency signal. The PA can be arranged on the transmission channel to amplify the power of the transmitted radio frequency signal. The LNA can be arranged on the receiving channel to amplify the power of the radio frequency signal received by the antenna module. The switch can be used to switch the radio frequency channel (transmission channel or receiving channel) connected to the antenna module at different time slots.

[0060] In one embodiment, as shown in FIG. 2, the radio frequency front-end circuit works in a frequency division dual (FDD) communication system. The radio frequency front-end circuit can not include a switch, and the transmission channel of the PA to the filter and the receiving channel of the filter to the LNA can be respectively electrically connected to different antenna units in the antenna module.

[0061] In the different electrical connection states of the switch shown in FIG. 3 (switching the antenna module to be electrically connected to the transmitting channel or the receiving channel), the radio frequency front-end circuit can work in a time division dual (TDD) communication system. For example, in a time slot corresponding to a transmitting signal, the switch is switched to the transmitting channel, so that the transmitting channel and the antenna module are electrically connected, and the radio frequency signal is transmitted to the antenna module through the transmitting channel and radiated to the outside. Alternatively, in a time slot corresponding to a receiving signal, the switch is switched to the receiving channel, so that the receiving channel and the antenna module are electrically connected, and the radio frequency signal received by the antenna module is transmitted to the radio frequency chip through the receiving channel for processing.

[0062] FIG. 4 is a schematic diagram of a radio frequency communication system, in which the radio frequency front-end circuit can work in both FDD mode and TDD mode. In the FDD mode, the PA and the LNA can be switched to be connected to the transmitting channel or the receiving channel of the antenna module in different time slots, and in the TDD mode, the PA and the LNA are switched to the transmitting channel or the receiving channel through the switch, and the duplexer is independently arranged. This makes it impossible to use the transmitting TX frequency band corresponding to the filter connected to the PA for receiving in the FDD mode, and it is impossible to use the receiving RX frequency band corresponding to the filter connected to the LNA for transmitting. The arrangement of the independent duplexer will increase the cost or the space, and the application of the spectrum in the radio frequency communication system is greatly limited. Therefore, the embodiment of the present application provides a radio frequency communication system, which can make the spectrum application more flexible.

[0063] FIG. 5 is a schematic diagram of a radio frequency communication system provided by the embodiment of the present application, and the radio frequency communication system is described in combination with FIG. 5.

[0064] The radio frequency communication system provided by the embodiment of the present application comprises a first PA 11, a first LNA 21, a second LNA 22, a first switch 100, a first filter 30, and a second filter 40. The first switch 100 comprises a connection end, a first switching end, and a second switching end, and the connection end 103 of the first switch is in communication with the first switching end 101 of the first switch or the second switching end 102 of the first switch.

[0065] The first filter 30 is connected to the connection end 103 of the first switch, the output end of the first PA 11 is connected to the first switching end 101 of the first switch, the input end of the first LNA 21 is connected to the second switching end 102 of the first switch, the first switch 100 can be used to switch the first transmitting channel of the first PA 11 to the first filter 30 and the first receiving channel of the first filter 30 to the first LNA 21, and the second filter 40 is connected to the input end of the second LNA 22 to form a second receiving channel.

[0066] It should be noted that when the connecting end 103 of the first switch 100 is connected to the first switching end 101 of the first switch 100, the first transmitting channel of the first PA 11 to the first filter 30 and the second receiving channel of the second filter 40 to the second LNA 22 can work simultaneously in two frequency bands, that is, the radio frequency communication system supports working in the FDD Band1 mode; in addition, in the frequency band of the first filter 30, the first switch 100 can switch the first transmitting channel of the first PA 11 to the first filter 30 and the first receiving channel of the first filter 30 to the first LNA 21 in different time slots, that is, the radio frequency communication system also supports the TDD communication mode of the TX frequency band.

[0067] The radio frequency communication system provided by the embodiment of the present application supports the TDD communication mode of the TX frequency band in the original FDD communication mode by adding the first switch 100 and the first LNA 21, and realizes flexible application of the spectrum of the radio frequency communication system.

[0068] In some embodiments, in combination with FIG. 5, the radio frequency communication system further includes a second PA 12, a third LNA 23, a fourth switch 400 and a third filter 50, the fourth switch 400 includes a connecting end, a first switching end and a second switching end, the connecting end 403 of the fourth switch 400 can be connected to the first switching end 401 of the fourth switch 400 or the second switching end 402 of the fourth switch 400, the output end of the second PA 12 is connected to the first switching end 401 of the fourth switch 400, the input end of the third LNA 23 is connected to the second switching end 402 of the fourth switch 400, the third filter 50 is connected to the connecting end 403 of the fourth switch 400, and the fourth switch 400 can be used to switch the third transmitting channel of the second PA 12 to the third filter 50 and the third receiving channel of the third filter 50 to the third LNA 23.

[0069] It should be understood that the radio frequency communication system provided by the embodiment of the present application also supports the TDD communication mode of the RX frequency band, that is, in the frequency band of the third filter 50, the fourth switch 400 can switch the third transmitting channel of the second PA 12 to the third filter 50 and the third receiving channel of the third filter 50 to the third LNA 23 in different time slots.

[0070] In some embodiments, in combination with the radio frequency communication system shown in Figure 5, the radio frequency communication system further comprises an antenna group, the antenna group comprises a first switch 100 component and a first antenna module 2000, the first filter 30, the second filter 40 or the third filter 50 is connected with the first antenna module 2000 through the switch component. The first switch component 1000 is used to simultaneously connect the first filter 30, the second filter 40 and the third filter 50 to different units of the first antenna module 2000, or the first switch component 1000 is used to switch the first filter 30 and the first antenna module 2000, or the second filter 40 and the first antenna module 2000, or the third filter 50 and the first antenna module 2000, which is not limited in the present application.

[0071] In some embodiments, the first filter 30, the second filter 40 or the third filter 50 can be connected with different antennas respectively, or the first filter 30, the second filter 40 are connected with the same antenna, and the third filter 50 is connected with a different antenna, which is not limited in the present application.

[0072] In some embodiments, the radio frequency chip of the radio frequency communication system is connected with the modem, and the input end of the first PA 11, the input end of the second PA 12, the output end of the first LNA 21, the output end of the second LNA 22 and the output end of the third LNA 23 are connected with the radio frequency chip.

[0073] In some embodiments, the radio frequency communication system further comprises a diversity reception module, the diversity reception module is used to perform specific combination processing on a plurality of mutually independent fading characteristic signals received by the receiving end, so as to reduce the signal level fluctuation.

[0074] Specifically, the diversity reception module comprises a fourth LNA 24, a fifth LNA 25, a fourth filter 60 and a fifth filter 70, wherein the input end of the fourth LNA 24 is connected with the fourth filter 60 to form a first diversity reception channel, and the input end of the fifth LNA 25 is connected with the fifth filter 70 to form a second diversity reception channel; the frequency band of the fourth filter 60 is the same as that of the first filter 30, and the frequency band of the fifth filter 70 is the same as that of the second filter 40.

[0075] In some embodiments, the diversity reception module further comprises a sixth LNA 26 and a sixth filter 80, the input end of the sixth LNA 26 is connected with the sixth filter 80 to form a third diversity reception channel, and the frequency band of the sixth filter 80 is the same as that of the third filter 50.

[0076] It should be understood that the diversity receiving channels of the diversity receiving module can correspond to the receiving channels of the main diversity receiving module of the radio frequency communication system. For example, the radio frequency communication system includes a first receiving channel of the first filter 30 to the first LNA 21 and a second receiving channel of the second filter 40 to the second LNA 22, and the diversity receiving module includes a first diversity receiving channel of the fourth filter 60 to the fourth LNA 24 and a second diversity receiving channel of the fifth filter 70 to the fifth LNA 25; for another example, the radio frequency communication system includes a first receiving channel of the first filter 30 to the first LNA 21, a second receiving channel of the second filter 40 to the second LNA 22, and a third receiving channel of the third filter 50 to the third LNA 23, and the diversity receiving module includes a first diversity receiving channel of the fourth filter 60 to the fourth LNA 24, a second diversity receiving channel of the fifth filter 70 to the fifth LNA 25, and a third diversity receiving channel of the sixth filter 80 to the sixth LNA 26. However, the embodiments of the present application are not limited thereto.

[0077] In some embodiments, the radio frequency communication system further includes a diversity antenna group, the diversity antenna group includes a second switch assembly 3000 and a second antenna module 4000, the output end of the fourth LNA 24, the output end of the fifth LNA 25, and the output end of the sixth LNA 26 are connected with the radio frequency chip, and the fourth filter 60, the fifth filter 70, and the sixth filter 80 are connected with the second antenna module 4000 through the second switch assembly 3000.

[0078] FIG. 6 is another radio frequency communication system provided by the embodiments of the present application, and the following description is made in combination with FIG. 6.

[0079] The radio frequency communication system provided by the embodiments of the present application includes a first PA 11, a first LNA 21, a second LNA 22, a first switch 100, a second switch 200, a third switch 300, a first filter 30, and a second filter 40. The first switch 100 includes a connection end, a first switching end, and a second switching end, the connection end 103 of the first switch is connected with the first switching end 101 or the second switching end of the first switch, the second switch 200 includes a connection end, a first switching end, and a second switching end, the connection end 203 of the second switch is connected with the first switching end 201 or the second switching end of the second switch, and the third switch 300 includes a connection end, a first switching end, and a second switching end, the connection end 303 of the third switch is connected with the first switching end 301 or the second switching end 302 of the third switch.

[0080] The first filter 30 is connected with the connection end 103 of the first switch, the first switching end 201 of the second switch is connected with the first switching end 101 of the first switch, the input end of the first LNA 21 is connected with the second switching end 102 of the first switch, the output end of the first PA 11 is connected with the connection end 203 of the second switch, the first switching end 301 of the third switch is connected with the second switching end 202 of the second switch, the input end of the second LNA 22 is connected with the second switching end 302 of the third switch, and the second filter 40 is connected with the connection end 303 of the third switch.

[0081] It should be understood that the first switch 100 is used for switching the first transmission channel of the first PA 11 to the first filter 30 and the first receiving channel of the first filter 30 to the first LNA 21, the second switch 200 is used for switching the first transmission channel of the first PA 11 to the first filter 30 and the second transmission channel of the first PA 11 to the second filter 40, and the third switch 300 is used for switching the second transmission channel of the first PA 11 to the second filter 40 and the second receiving channel of the second filter 40 to the second LNA 22.

[0082] It should be understood that when the connection end 103 of the first switch 100 and the connection end 203 of the second switch are both connected with the respective first switching ends, and the connection end 303 of the third switch is connected with the second switching end 302 of the third switch, the first transmission channel of the first PA 11 to the first filter 30 and the second receiving channel of the second filter 40 to the second LNA 22 can work simultaneously in the two frequency bands, that is, the radio frequency communication system supports working in the FDD Band1 mode; meanwhile, in the frequency band of the first filter 30, when the connection end 203 of the second switch is connected with the first switching end 201 of the second switch, the first switch 100 switches the first transmission channel of the first PA 11 to the first filter 30 and the first receiving channel of the first filter 30 to the first LNA 21 in different time slots, that is, the radio frequency communication system also supports the TDD communication mode of the TX frequency band; in the frequency band of the second filter 40, when the connection end 203 of the second switch is connected with the second switching end 202 of the second switch, the third switch 300 switches the second transmission channel of the first PA 11 to the second filter 40 and the second receiving channel of the second filter 40 to the second LNA 22 in different time slots, that is, the radio frequency communication system also supports the TDD communication mode of the RX frequency band.

[0083] The radio frequency communication system provided by the embodiment of the present application adds the first switch 100, the first LNA 21, the second switch 200 and the third switch 300, supports the TDD communication mode of the TX frequency band and the TDD communication mode of the RX frequency band in the original FDD communication mode, and realizes flexible application of the spectrum of the radio frequency communication system.

[0084] In some embodiments, in combination with FIG. 6, the radio frequency communication system further comprises a second PA 12, a third LNA 23, a fourth switch 400, and a third filter 50, the fourth switch 400 comprises a connection end, a first switching end, and a second switching end, the connection end 403 of the fourth switch can be connected to the first switching end 401 of the fourth switch or the second switching end 402 of the fourth switch, the output end of the second PA 12 is connected to the first switching end 401 of the fourth switch, the input end of the third LNA 23 is connected to the second switching end 402 of the fourth switch, and the third filter 50 is connected to the connection end 403 of the fourth switch, and the fourth switch 400 can be used to switch the third transmission channel of the second PA 12 to the third filter 50 and the third reception channel of the third filter 50 to the third LNA 23.

[0085] It should be understood that the radio frequency communication system provided by the embodiments of the present application also supports another TDD communication mode of RX frequency band, that is, the fourth switch 400 can switch the third transmission channel of the second PA 12 to the third filter 50 and the third reception channel of the third filter 50 to the third LNA 23 in different time slots under the frequency band of the third filter 50.

[0086] In some embodiments, in combination with FIG. 6, the radio frequency communication system further comprises an antenna group, the antenna group comprises a first switch assembly 1000, a first antenna module 2000, the first filter 30, the second filter 40, or the third filter 50 is connected to the first antenna module 2000 through the switch assembly.

[0087] In some embodiments, the first filter 30, the second filter 40, or the third filter 50 can be connected to different antennas respectively, or the first filter 30, the second filter 40, and the same antenna are connected, and the third filter 50 and different antennas are connected, and the embodiments of the present application are not limited thereto.

[0088] In some embodiments, the radio frequency communication system further comprises a modem, and the radio frequency chip is connected to the modem, and the input end of the first PA 11, the input end of the second PA 12, the output end of the first LNA 21, the output end of the second LNA 22, and the output end of the third LNA 23 are connected to the radio frequency chip.

[0089] In some embodiments, the radio frequency communication system further comprises a diversity reception module, the diversity reception module comprises a fourth LNA 24, a fifth LNA 25, a fourth filter 60, and a fifth filter 70, wherein the input end of the fourth LNA 24 is connected to the fourth filter 60 to form a first diversity reception channel, the input end of the fifth LNA 25 is connected to the fifth filter 70 to form a second diversity reception channel, the frequency band of the fourth filter 60 is the same as the frequency band of the first filter 30, and the frequency band of the fifth filter 70 is the same as the frequency band of the second filter 40.

[0090] In some embodiments, the diversity receiving module further comprises a sixth LNA 26 and a sixth filter 80, an input end of the sixth LNA 26 is connected with the sixth filter 80 to form a third diversity receiving channel, and a frequency band of the sixth filter 80 is the same as that of the third filter 50.

[0091] In some embodiments, the radio frequency communication system further comprises a diversity antenna group, the diversity antenna group comprises a second switch assembly 3000 and a second antenna module 4000, an output end of the fourth LNA 24, an output end of the fifth LNA 25, and an output end of the sixth LNA 26 are connected with the radio frequency chip, and the fourth filter 60, the fifth filter 70, and the sixth filter 80 are connected with the second antenna module 4000 through the second switch assembly 3000.

[0092] FIG. 7 is another radio frequency communication system provided by the embodiments of the present application, and the radio frequency communication system is described as follows in combination with FIG. 7.

[0093] The radio frequency communication system provided by the embodiments of the present application comprises a first PA 11, a first LNA 21, a fifth switch 500, a sixth switch 600, a first filter 30, and a second filter 40. The fifth switch 500 comprises a connection end, a first switching end, and a second switching end, the connection end 503 of the fifth switch is connected with the first switching end 501 or the second switching end 502 of the fifth switch, the sixth switch 600 comprises a connection end, a first switching end, and a second switching end, and the connection end 603 of the sixth switch is connected with the first switching end 601 or the second switching end of the sixth switch.

[0094] Specifically, the output end of the first PA 11 is connected with the connection end 503 of the fifth switch, the first filter 30 is connected with the first switching end 501 of the fifth switch, the first switching end 601 of the sixth switch is connected with the second switching end 502 of the fifth switch, the input end of the first LNA 21 is connected with the second switching end 602 of the sixth switch, and the second filter 40 is connected with the connection end 603 of the sixth switch.

[0095] It should be understood that the fifth switch 500 is used to switch a first transmitting channel of the first PA 11 to the first filter 30 and a second transmitting channel of the first PA 11 to the second filter 40, and the sixth switch 600 is used to switch the second transmitting channel of the first PA 11 to the second filter 40 and a first receiving channel of the second filter 40 to the first LNA 21.

[0096] It should be noted that when the connection end 503 of the fifth switch is connected to the first switching end 501 of the fifth switch and the connection end 603 of the sixth switch is connected to the second switching end 602 of the sixth switch, the first transmission channel of the first PA 11 to the first filter 30 and the first reception channel of the second filter 40 to the first LNA 21 can work simultaneously in two frequency bands, that is, the radio frequency communication system supports working in the FDD Band1 mode; at the same time, in the frequency band of the second filter 40, when the connection end 503 of the fifth switch is connected to the second switching end 502 of the fifth switch, the sixth switch 600 switches the second transmission channel of the first PA 11 to the second filter 40 and the first reception channel of the second filter 40 to the first LNA 21 in different time slots, that is, the radio frequency communication system also supports the TDD communication mode of the RX frequency band.

[0097] The radio frequency communication system provided by the embodiment of the present application increases the fifth switch 500 and the sixth switch 600, supports the TDD communication mode of the RX frequency band in the FDD communication mode, and realizes flexible application of the spectrum of the radio frequency communication system.

[0098] In some embodiments, in combination with FIG. 7, the radio frequency communication system further includes a second PA 12, a third LNA 23, a fourth switch 400 and a third filter 50, the fourth switch 400 includes a connection end, a first switching end and a second switching end, the connection end 403 of the fourth switch can be connected to the first switching end 401 of the fourth switch or the second switching end 402 of the fourth switch, the output end of the second PA 12 is connected to the first switching end 401 of the fourth switch, the input end of the third LNA 23 is connected to the second switching end 402 of the fourth switch, and the third filter 50 is connected to the connection end 403 of the fourth switch. The fourth switch 400 can be used to switch the third transmission channel of the second PA 12 to the third filter 50 and the third reception channel of the third filter 50 to the third LNA 23.

[0099] It should be understood that the radio frequency communication system provided by the embodiment of the present application also supports another TDD communication mode of the RX frequency band, that is, in the frequency band of the third filter 50, the fourth switch 400 can switch the third transmission channel of the second PA 12 to the third filter 50 and the third reception channel of the third filter 50 to the third LNA 23 in different time slots.

[0100] In some embodiments, in combination with FIG. 7, the radio frequency communication system further includes an antenna group, the antenna group includes a first switch assembly 1000 and a first antenna module 2000, and the first filter 30, the second filter 40 or the third filter 50 is connected to the first antenna module 2000 through the first switch assembly 1000.

[0101] In some embodiments, the radio frequency communication system further comprises a modem, the radio frequency chip is connected with the modem, and the input end of the first PA 11, the input end of the second PA 12, the output end of the first LNA 21 and the output end of the third LNA 23 are connected with the radio frequency chip.

[0102] In some embodiments, the radio frequency communication system further comprises a diversity receiving module, the diversity receiving module comprises a fifth LNA 25 and a fifth filter 70, wherein the input end of the fifth LNA 25 is connected with the fifth filter 70 to form a first diversity receiving channel, and the frequency band of the fifth filter 70 is the same as that of the second filter 40.

[0103] In some embodiments, the diversity receiving module further comprises a sixth LNA 26 and a sixth filter 80, the input end of the sixth LNA 26 is connected with the sixth filter 80 to form a second diversity receiving channel, and the frequency band of the sixth filter 80 is the same as that of the third filter 50.

[0104] In some embodiments, the radio frequency communication system further comprises a diversity antenna group, the diversity antenna group comprises a second switch assembly 3000 and a second antenna module 4000, the output end of the fifth LNA 25 and the output end of the sixth LNA 26 are connected with the radio frequency chip, and the fifth filter 70 and the sixth filter 80 are connected with the second antenna module 4000 through the second switch assembly 3000.

[0105] FIG. 8 is another radio frequency communication system provided by the embodiments of the present application, and the radio frequency communication system is described as follows in combination with FIG. 8.

[0106] The radio frequency communication system provided by the embodiments of the present application comprises a first PA 11, a first LNA 21, a second LNA 22, a fifth switch 500, a sixth switch 600, a seventh switch 700, a first filter 30 and a second filter 40. The fifth switch 500 comprises a connection end, a first switching end and a second switching end, the connection end 503 of the fifth switch is connected with the first switching end 501 or the second switching end of the fifth switch, the sixth switch 600 comprises a connection end, a first switching end and a second switching end, the connection end 603 of the sixth switch is connected with the first switching end 601 or the second switching end of the sixth switch, and the seventh switch 700 comprises a connection end, a first switching end and a second switching end, the connection end 703 of the seventh switch is connected with the first switching end 701 or the second switching end 702 of the seventh switch.

[0107] The first filter 30 is connected with the connection end 703 of the seventh switch, the first switching end 501 of the fifth switch is connected with the first switching end 701 of the seventh switch, the input end of the second LNA 22 is connected with the second switching end 702 of the seventh switch, the output end of the first PA 11 is connected with the connection end 503 of the fifth switch, the first switching end 601 of the sixth switch is connected with the second switching end 502 of the fifth switch, the input end of the first LNA 21 is connected with the second switching end 602 of the sixth switch, and the second filter 40 is connected with the connection end 603 of the sixth switch.

[0108] It should be understood that the fifth switch 500 is used for switching the first transmission channel of the first PA 11 to the first filter 30 and the second transmission channel of the first PA 11 to the second filter 40, the sixth switch 600 is used for switching the second transmission channel of the first PA 11 to the second filter 40 and the second receiving channel of the second filter 40 to the first LNA 21, and the seventh switch 700 is used for switching the first transmission channel of the first PA 11 to the first filter 30 and the first receiving channel of the first filter 30 to the second LNA 22.

[0109] The radio frequency communication system provided in the embodiment of the present application is the same as the radio frequency communication system provided in FIG. 3, supports the TDD communication mode of the TX frequency band and the TDD communication mode of the RX frequency band in the original FDD communication mode, and realizes flexible application of the spectrum of the radio frequency communication system. Some possible embodiments of the radio frequency communication system provided in the embodiment of the present application are the same as the foregoing embodiments, and thus are not described herein.

[0110] FIG. 9 is another radio frequency communication system provided in the embodiment of the present application, and the radio frequency communication system is described as follows in combination with FIG. 9.

[0111] The radio frequency communication system provided in the embodiment of the present application comprises a first PA 11, a first LNA 21, an eighth switch 800, a ninth switch 900, a first filter 30 and a second filter 40. The eighth switch 800 comprises a connection end, a first switching end and a second switching end, the connection end 803 of the eighth switch is connected with the first switching end 801 of the eighth switch or the second switching end 802 of the eighth switch, the ninth switch 900 comprises a connection end, a first switching end and a second switching end, and the connection end 903 of the ninth switch is connected with the first switching end 901 of the ninth switch or the second switching end 902 of the ninth switch.

[0112] The first filter 30 is connected with the connection end 803 of the eighth switch, the output end of the first PA 11 is connected with the first switching end 801 of the eighth switch, the first switching end 901 of the ninth switch is connected with the second switching end 802 of the eighth switch, the second filter 40 is connected with the second switching end 902 of the ninth switch, and the input end of the first LNA 21 is connected with the connection end 903 of the ninth switch.

[0113] It should be understood that the eighth switch 800 is used to switch the first transmitting channel of the first PA 11 to the first filter 30 and the first receiving channel of the first filter 30 to the first LNA 21, and the ninth switch 900 is used to switch the first receiving channel of the first filter 30 to the first LNA 21 and the second receiving channel of the second filter 40 to the first LNA 21.

[0114] It should be noted that when the connecting end 803 of the eighth switch is connected to the first switching end 801 of the eighth switch and the connecting end 903 of the ninth switch is connected to the second switching end 902 of the ninth switch, the first transmitting channel of the first PA 11 to the first filter 30 and the second receiving channel of the second filter 40 to the first LNA 21 can work simultaneously in two frequency bands, that is, the radio frequency communication system supports working in the FDD Band1 mode; at the same time, in the frequency band of the first filter 30, when the connecting end 903 of the ninth switch is connected to the first switching end 901 of the ninth switch, the eighth switch 800 switches the first transmitting channel of the first PA 11 to the first filter 30 and the first receiving channel of the first filter 30 to the first LNA 21 in different time slots, that is, the radio frequency communication system also supports the TDD communication mode of the TX frequency band.

[0115] The radio frequency communication system provided by the embodiment of the present application increases the eighth switch 800 and the ninth switch 900, supports the TDD communication mode of the TX frequency band in the original FDD communication mode, and realizes flexible application of the spectrum of the radio frequency communication system.

[0116] In some embodiments, in combination with FIG. 9, the radio frequency communication system further includes a second PA 12, a third LNA 23, a fourth switch 400 and a third filter 50, the fourth switch 400 includes a connecting end, a first switching end and a second switching end, the connecting end 403 of the fourth switch can be connected to the first switching end 401 of the fourth switch or the second switching end 402 of the fourth switch, the output end of the second PA 12 is connected to the first switching end 401 of the fourth switch, the input end of the third LNA 23 is connected to the second switching end 402 of the fourth switch, the third filter 50 is connected to the connecting end 403 of the fourth switch, and the fourth switch 400 can be used to switch the third transmitting channel of the second PA 12 to the third filter 50 and the third receiving channel of the third filter 50 to the third LNA 23.

[0117] It should be understood that the radio frequency communication system provided by the embodiment of the present application also supports the TDD communication mode of the RX frequency band, that is, in the frequency band of the third filter 50, the fourth switch 400 can switch the third transmitting channel of the second PA 12 to the third filter 50 and the third receiving channel of the third filter 50 to the third LNA 23 in different time slots.

[0118] In some embodiments, in combination with the radio frequency communication system shown in FIG. 9, the radio frequency communication system further comprises an antenna group, the antenna group comprising the first switch assembly 1000, the first switch assembly 1000 and the first antenna module 2000, the first filter 30, the second filter 40 or the third filter 50 being connected to the first antenna module 2000 through the switch assembly.

[0119] In some embodiments, the first filter 30, the second filter 40 or the third filter 50 can be connected to different antennas respectively, or the first filter 30, the second filter 40 are connected to the same antenna, and the third filter 50 is connected to a different antenna, which is not limited in the embodiments of the present application.

[0120] In some embodiments, the radio frequency communication system further comprises a modem, the radio frequency chip being connected to the modem, and the input end of the first PA 11, the input end of the second PA 12, the output end of the first LNA 21, the output end of the second LNA 22 and the output end of the third LNA 23 being connected to the radio frequency chip.

[0121] In some embodiments, the radio frequency communication system further comprises a diversity receiving module, the diversity receiving module comprising a fourth LNA 24, a fifth LNA 25, a fourth filter 60 and a fifth filter 70, wherein the input end of the fourth LNA 24 is connected to the fourth filter 60 to form a first diversity receiving channel, and the input end of the fifth LNA 25 is connected to the fifth filter 70 to form a second diversity receiving channel; the frequency band of the fourth filter 60 is the same as that of the first filter 30, and the frequency band of the fifth filter 70 is the same as that of the second filter 40.

[0122] In some embodiments, the diversity receiving module further comprises a sixth LNA 26 and a sixth filter 80, the input end of the sixth LNA 26 being connected to the sixth filter 80 to form a third diversity receiving channel, and the frequency band of the sixth filter 80 is the same as that of the third filter 50.

[0123] In some embodiments, the radio frequency communication system further comprises a diversity antenna group, the diversity antenna group comprising a second switch assembly 3000 and a second antenna module 4000, the output end of the fourth LNA 24, the output end of the fifth LNA 25 and the output end of the sixth LNA 26 being connected to the radio frequency chip, and the fourth filter 60, the fifth filter 70 and the sixth filter 80 being connected to the second antenna module 4000 through the second switch assembly 3000.

[0124] In some embodiments, the frequency band of the first filter 30 is 1920-1980MHz, the frequency band of the second filter 40 is 2110-2170MHz, and the frequency band of the third filter 50 is 1880-1920MHz, but the embodiments of the present application are not limited thereto.

[0125] In some embodiments, the fourth filter 60 has a frequency band of 1920-1980MHz, the fifth filter 70 has a frequency band of 2110-2170MHz, and the sixth filter 80 has a frequency band of 1880-1920MHz, but the embodiments of the present application are not limited thereto.

[0126] In some embodiments, the total number of frequency bands used by the filters of the diversity receiving module is less than or equal to the total number of frequency bands used by the filters of the main receiving module, wherein the main receiving module comprises the aforementioned first PA 11, the first LNA 21, the second LNA 22, the first switch 100, the first filter 30, and the second filter 40, and the main receiving module can further comprise the aforementioned second PA 12, the third LNA 23, the fourth switch 400, and the third filter 50, and the main receiving module can further comprise the aforementioned second switch 200, the third switch 300, the fifth switch 500, the sixth switch 600, the seventh switch 700, the eighth switch 800, and the ninth switch 900.

[0127] In some embodiments, the first switch 100, the second switch 200, the third switch 300, the fourth switch 400, the fifth switch 500, the sixth switch 600, the seventh switch 700, the eighth switch 800, or the ninth switch 900 is a single-pole double-throw switch or a multi-pole multi-throw switch, but the embodiments of the present application are not limited thereto.

[0128] In some embodiments, the first switch assembly 1000 or the second switch assembly 3000 comprises a single-pole double-throw switch or a multi-pole multi-throw switch, but the embodiments of the present application are not limited thereto.

[0129] In some embodiments, the first switch assembly 1000 can also be connected to other frequency bands, and the second switch assembly 3000 can also be connected to other frequency bands, and the embodiments of the present application do not make specific limitations thereon.

[0130] Those skilled in the art can clearly understand that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0131] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device, and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0132] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. For example, the described device embodiments are merely schematic. The division of the units is merely logical function division. There can be other division manners in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0133] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0134] In addition, each functional unit in the various embodiments of the present application can be integrated into a processing unit, or each unit can be a physically separate unit, or two or more units can be integrated into a unit.

[0135] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application can be embodied in the form of a software product, and the computer software product is stored in a storage medium, and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0136] The above is merely specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A radio frequency communication system, characterized by The radio frequency communication system comprises: a first power amplifier (PA), a first low noise amplifier (LNA), a second LNA, a first switch, a first filter and a second filter, the first switch comprises a connection end, a first switching end and a second switching end, the first filter is connected with the connection end of the first switch, the output end of the first PA is connected with the first switching end of the first switch, and the input end of the first LNA is connected with the second switching end of the first switch, the first switch is used for connecting the connection end of the first switch with the first switching end of the first switch or connecting the connection end of the first switch with the second switching end of the first switch, so as to switch the first transmission channel of the first PA to the first filter and the first receiving channel of the first filter to the first LNA, the second filter is connected with the input end of the second LNA to form a second receiving channel.

2. The radio frequency communication system of claim 1, wherein, The radio frequency communication system further comprises a second switch and a third switch, the second switch comprises a connection end, a first switching end and a second switching end, and the third switch comprises a connection end, a first switching end and a second switching end, the output end of the first PA is connected with the connection end of the second switch, the first switching end of the first switch is connected with the first switching end of the second switch, and the first switching end of the third switch is connected with the second switching end of the second switch, the input end of the second LNA is connected with the second switching end of the third switch, and the second filter is connected with the connection end of the third switch; the second switch is used for connecting the connection end of the second switch with the first switching end of the second switch or connecting the connection end of the second switch with the second switching end of the second switch, so as to switch the first transmission channel of the first PA to the first filter and the second transmission channel of the first PA to the second filter; the third switch is used for connecting the connection end of the third switch with the first switching end of the third switch or connecting the connection end of the third switch with the second switching end of the third switch, so as to switch the second transmission channel of the first PA to the second filter and the second receiving channel of the second filter to the second LNA.

3. A radio frequency communication system as claimed in claim 1 or 2, characterized in that, The radio frequency communication system further comprises a first switch assembly and a first antenna module, the first filter and the second filter are connected with the first antenna module through the first switch assembly.

4. The radio frequency communication system of claim 1, wherein, The radio frequency communication system further comprises a diversity receiving module, and the diversity receiving module comprises a fourth LNA, a fifth LNA, a fourth filter and a fifth filter, the input end of the fourth LNA is connected with the fourth filter to form a first diversity receiving channel, and the input end of the fifth LNA is connected with the fifth filter to form a second diversity receiving channel; the frequency band of the fourth filter is the same as that of the first filter, and the frequency band of the fifth filter is the same as that of the second filter.

5. A radio frequency communication system as claimed in claim 1 or 2, characterized in that The radio frequency communication system further comprises a second PA, a third LNA, a third filter and a fourth switch, The fourth switch comprises a connection end, a first switching end and a second switching end, an output end of the second PA is connected with the first switching end of the fourth switch, an input end of the third LNA is connected with the second switching end of the fourth switch, and the third filter is connected with the connection end of the fourth switch; The fourth switch is used for connecting the connection end of the fourth switch with the first switching end of the fourth switch or connecting the connection end of the fourth switch with the second switching end of the fourth switch, so as to switch the third transmitting channel of the second PA to the third filter and the third receiving channel of the third filter to the third LNA.

6. The radio frequency communication system of claim 5, wherein, The radio frequency communication system further comprises a first switch assembly and a first antenna module, The first filter, the second filter and the third filter are connected with the first antenna module through the first switch assembly.

7. The radio frequency communication system of claim 5, wherein, The radio frequency communication system further comprises a diversity receiving module, the diversity receiving module comprises a fourth LNA, a fifth LNA, a sixth LNA, a fourth filter, a fifth filter and a sixth filter, An input end of the fourth LNA is connected with the fourth filter to form a first diversity receiving channel, an input end of the fifth LNA is connected with the fifth filter to form a second diversity receiving channel, and an input end of the sixth LNA is connected with the sixth filter to form a third diversity receiving channel; The frequency band of the fourth filter is the same as that of the first filter, the frequency band of the fifth filter is the same as that of the second filter, and the frequency band of the sixth filter is the same as that of the third filter.

8. The radio frequency communication system of claim 7, wherein, The radio frequency communication system further comprises a second switch assembly and a second antenna module, The fourth filter, the fifth filter and the sixth filter are connected with the second antenna module through the second switch assembly.

9. The radio frequency communication system of any one of claims 1 to 8, characterized in that, The frequency band of the first filter is 1920-1980MHz.

10. The radio frequency communication system of any one of claims 1 to 8, characterized in that, The frequency band of the second filter is 2110-2170MHz.

11. The radio frequency communication system of any one of claims 1 to 10, wherein, The first switch is a single-pole double-throw switch or a multi-pole multi-throw switch.

12. The radio frequency communication system of claim 5, wherein, The frequency band of the third filter is 1880-1920MHz.

13. The radio frequency communication system of any one of claims 1 to 12, characterized in that, The radio frequency communication system further comprises a modem and a radio frequency chip, An input end of the first PA, an output end of the first LNA and an output end of the second LNA are connected with the radio frequency chip, and the radio frequency chip is connected with the modem.

14. A radio frequency communication system, characterized by Comprise: a first power amplifier (PA), a first low noise amplifier (LNA), a fifth switch, a sixth switch, a first filter and a second filter, The fifth switch comprises a connection end, a first switching end and a second switching end, and the sixth switch comprises a connection end, a first switching end and a second switching end; An output end of the first PA is connected with the connection end of the fifth switch, the first filter is connected with the first switching end of the fifth switch, the first switching end of the sixth switch is connected with the second switching end of the fifth switch, an input end of the first LNA is connected with the second switching end of the sixth switch, and the second filter is connected with the connection end of the sixth switch, The fifth switch is configured to connect the connection end of the fifth switch with the first switching end of the fifth switch or connect the connection end of the fifth switch with the second switching end of the fifth switch, so as to switch the first PA to the first transmission channel of the first filter and the second PA to the second transmission channel of the second filter. The sixth switch is configured to connect the connection end of the sixth switch with the first switching end of the sixth switch or connect the connection end of the sixth switch with the second switching end of the sixth switch, so as to switch the first PA to the second transmission channel of the second filter and the second filter to the first reception channel of the first LNA.

15. The radio frequency communication system of claim 14, wherein, The radio frequency communication system further comprises a seventh switch and a second LNA, The seventh switch comprises a connection end, a first switching end and a second switching end, the first filter is connected with the connection end of the seventh switch, the first switching end of the fifth switch is connected with the first switching end of the seventh switch, and the second LNA is connected with the second switching end of the seventh switch; The seventh switch is configured to connect the connection end of the seventh switch with the first switching end of the seventh switch or connect the connection end of the seventh switch with the second switching end of the seventh switch, so as to switch the first PA to the first transmission channel of the first filter and the first filter to the second reception channel of the second LNA.

16. The radio frequency communication system of claim 14 or 15, characterized in that The radio frequency communication system further comprises a first switch assembly and a first antenna module, The first filter and the second filter are connected with the first antenna module through the first switch assembly.

17. The radio frequency communication system of claim 14, wherein, The radio frequency communication system further comprises a diversity reception module, and the diversity reception module comprises a fifth LNA and a fifth filter, The input end of the fifth LNA is connected with the fifth filter to form a first diversity reception channel; The frequency band of the fifth filter is the same as the frequency band of the second filter.

18. The radio frequency communication system of claim 14 or 15, wherein, The radio frequency communication system further comprises a second PA, a third LNA, a third filter and a fourth switch, The fourth switch comprises a connection end, a first switching end and a second switching end, the output end of the second PA is connected with the first switching end of the fourth switch, the input end of the third LNA is connected with the second switching end of the fourth switch, and the third filter is connected with the connection end of the fourth switch; The fourth switch is configured to connect the connection end of the fourth switch with the first switching end of the fourth switch or connect the connection end of the fourth switch with the second switching end of the fourth switch, so as to switch the second PA to the third transmission channel of the third filter and the third filter to the third reception channel of the third LNA.

19. The radio frequency communication system of claim 18, wherein, The radio frequency communication system further comprises a first switch assembly and a first antenna module, The first filter, the second filter and the third filter are connected with the first antenna module through the first switch assembly.

20. The radio frequency communication system of claim 18, wherein, The radio frequency communication system further comprises a diversity reception module, and the diversity reception module comprises a fourth LNA, a fifth LNA, a sixth LNA, a fourth filter, a fifth filter and a sixth filter, An input end of the fourth LNA is connected with the fourth filter to form a first diversity receiving channel, an input end of the fifth LNA is connected with the fifth filter to form a second diversity receiving channel, and an input end of the sixth LNA is connected with the sixth filter to form a third diversity receiving channel. The fourth filter has the same frequency band as the first filter, the fifth filter has the same frequency band as the second filter, and the sixth filter has the same frequency band as the third filter.

21. The radio frequency communication system of claim 20, wherein, The radio frequency communication system further comprises a second switch assembly and a second antenna module, The fourth filter, the fifth filter or the sixth filter is connected with the second antenna module through the second switch assembly.

22. The radio frequency communication system of any one of claims 14 to 21, wherein, The frequency band of the first filter is 1920-1980MHz.

23. The radio frequency communication system of any one of claims 14-21, wherein, The frequency band of the second filter is 2110-2170MHz.

24. The radio frequency communication system of any one of claims 14-23, wherein, The fifth switch or the sixth switch is a single-pole double-throw switch or a multi-pole multi-throw switch.

25. The radio frequency communication system of claim 18, wherein, The frequency band of the third filter is 1880-1920MHz.

26. A radio frequency communication system, characterized by Comprise: A first power amplifier (PA), a first low noise amplifier (LNA), an eighth switch, a ninth switch, a first filter and a second filter, The eighth switch comprises a connection end, a first switching end and a second switching end, and the ninth switch comprises a connection end, a first switching end and a second switching end; The first filter is connected with the connection end of the eighth switch, the output end of the first PA is connected with the first switching end of the eighth switch, the first switching end of the ninth switch is connected with the second switching end of the eighth switch, the second filter is connected with the second switching end of the ninth switch, and the input end of the first LNA is connected with the connection end of the ninth switch, The eighth switch is used to connect the connection end of the eighth switch with the first switching end of the eighth switch or connect the connection end of the eighth switch with the second switching end of the eighth switch, so as to switch the first transmitting channel of the first PA to the first filter and the first receiving channel of the first filter to the first LNA, The ninth switch is used to connect the connection end of the ninth switch with the first switching end of the ninth switch or connect the connection end of the ninth switch with the second switching end of the ninth switch, so as to switch the first receiving channel of the first filter to the first LNA and the second receiving channel of the second filter to the first LNA.

27. The radio frequency communication system of claim 26, wherein, The eighth switch or the ninth switch is a single-pole double-throw switch or a multi-pole multi-throw switch.

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