Wireless communication circuit and device

Abstract

The present invention provides a wireless communication circuit and device. The wireless communication circuit includes a baseband controller, a first RF transceiver, a second RF transceiver, a first RF component, a second RF component, a first antenna, a second antenna, a third antenna, a fourth antenna, at least one fifth antenna and a WiFi controller; the first RF component includes at least four different RF paths, and the second RF component includes at least four different RF paths; the first RF transceiver, the second RF transceiver and the WiFi controller are respectively connected to the baseband controller; the first RF component is electrically connected to the first antenna, the second antenna and the first RF transceiver; the second RF component is electrically connected to the third antenna, the fourth antenna and the second RF transceiver; the WiFi controller is electrically connected to each fifth antenna. The wireless communication circuit and device can simultaneously meet the user's requirements for WiFi, high-speed LTE and support for multiple frequency bands.

Description

Technical Field

[0001] The present invention relates to the field of communications, and in particular to a wireless communication circuit and device. Background Art

[0002] LTE (Long Term Evolution) and WiFi (Wireless Fidelity) are two widely used wireless communication methods. Currently, LTE base stations and WiFi routers are usually two products, and customers need to purchase both products and deploy them at the same time.

[0003] LTE usually only supports a maximum bandwidth of 20Mhz, has a low communication rate, and only supports one frequency band, which cannot meet the needs of users for WiFi, high-speed LTE, and support for multiple frequency bands at the same time. Therefore, how to meet the needs of users for WiFi, high-speed LTE, and support for multiple frequency bands at the same time is an urgent problem to be solved. Summary of the invention

[0004] In view of this, the purpose of the present invention is to overcome the problem in the prior art that it is impossible to simultaneously meet the needs of user WiFi, high-speed LTE and support multiple frequency bands, and to provide a wireless communication circuit and device.

[0005] The present invention provides the following technical solutions:

[0006] In a first aspect, an embodiment of the present invention provides a wireless communication circuit, wherein the wireless communication circuit includes a baseband controller, a first RF transceiver, a second RF transceiver, a first RF component, a second RF component, a first antenna, a second antenna, a third antenna, a fourth antenna, at least one fifth antenna and a WiFi controller; the first RF component includes at least four different RF paths, and the second RF component includes at least four different RF paths; the first RF transceiver, the second RF transceiver and the WiFi controller are electrically connected to the baseband controller respectively; the first RF component is electrically connected to the first antenna, the second antenna and the first RF transceiver; the second RF component is electrically connected to the third antenna, the fourth antenna and the second RF transceiver; the WiFi controller is electrically connected to each of the fifth antennas.

[0007] In an optional implementation, the TXD AC0 pin of the baseband controller is connected to the BB_TX1 pin of the first RF transceiver; the BB RX0 pin of the baseband controller is connected to the BB RX1 pin of the first RF transceiver; the TXD AC1 pin of the baseband controller is connected to the BB_TX2 pin of the first RF transceiver; the BB RX1 pin of the baseband controller is connected to the BB RX2 pin of the first RF transceiver; the TXD AC2 pin of the baseband controller is connected to the BB_TX1 pin of the second RF transceiver; the BB RX2 pin of the baseband controller is connected to the BB RX1 pin of the second RF transceiver; the TXD AC3 pin of the baseband controller is connected to the BB_TX2 pin of the second RF transceiver; the BB RX3 pin of the baseband controller is connected to the BB RX2 pin of the second RF transceiver; the BB RX5 pin of the baseband controller is connected to the BB RXNL pin of the second RF transceiver; and the PCIE pin of the baseband controller is connected to the WiFi controller.

[0008] In an optional embodiment, the first RF component includes a first RF path for transmitting a first RF signal, a second RF path for receiving the first RF signal, a third RF path for receiving a second RF signal or a third RF signal, and a fourth RF path for transmitting the second RF signal or the third RF signal; the first RF path is connected to the RX1_LB pin of the first RF transceiver, and the first RF path includes a first RF switch, a first filter, a second RF switch, and a first duplexer; the first antenna is connected to the first connection end of the first RF switch, the second antenna is connected to the second connection end of the first RF switch, the common end of the first RF switch is connected to the first connection end of the first filter, the second connection end of the first filter is connected to the common end of the second RF switch, the first connection end of the second RF switch is connected to the first connection end of the first duplexer, and the second connection end of the first duplexer is connected to the RX1_LB pin of the first RF transceiver; the second RF path is connected to the TX1_LB pin of the first RF transceiver, and the second RF path includes a first power amplifier, a first coupler, the first duplexer, the second RF switch, the first filter, and the first RF switch; the TX1_LB pin of the first RF transceiver is connected to the input end of the first power amplifier, and the output end of the first power amplifier The first RF path is connected to the input end of the first coupler, the first output end of the first coupler is connected to the third connection end of the first duplexer, the first connection end of the first duplexer is connected to the first connection end of the second RF switch, the common end of the second RF switch is connected to the second connection end of the first filter, the first connection end of the first filter is connected to the common end of the first RF switch, the first connection end of the first RF switch is connected to the first antenna, and the second connection end of the first RF switch is connected to the second antenna; the third RF path is connected to the TX1_MB pin of the first RF transceiver, and the third RF path includes a second power amplifier, a second coupler, a second duplexer, the second RF switch, the first filter and the first RF switch; the TX1_MB pin of the first RF transceiver is connected to the input end of the second power amplifier, the output end of the second power amplifier is connected to the input end of the second coupler, the first output end of the second coupler is connected to the first connection end of the second duplexer, the second connection end of the second duplexer is connected to the second connection end of the second RF switch, the common end of the second RF switch is connected to the second connection end of the first filter, the first connection end of the first filter is connected to the common end of the first RF switch, the first connection end of the first RF switch is connected to the first antenna, and the second connection end of the first RF switch is connected to the second antenna;The fourth RF path is connected to the RX1_MB pin of the first RF transceiver, and the fourth RF path includes the first RF switch, the first filter, the second RF switch and the second duplexer; the first antenna is connected to the first connection end of the first RF switch, the second antenna is connected to the second connection end of the first RF switch, the common end of the first RF switch is connected to the first connection end of the first filter, the second connection end of the first filter is connected to the common end of the second RF switch, the second connection end of the second RF switch is connected to the second connection end of the second duplexer, and the third connection end of the second duplexer is connected to the RX1_MB pin of the first RF transceiver; the first RF switch is used to select the first antenna or the second antenna to send and receive signals; the second RF switch is used to select the type of RF signal received or sent. ;

[0009] In an optional embodiment, the first RF component also includes a third RF switch, and the first RF component is connected to the DPD / PDET1 pin of the first RF transceiver; the first connection end of the third RF switch is connected to the second output end of the first coupler, the second connection end of the third RF switch is connected to the second output end of the second coupler, and the common end of the third RF switch is connected to the DPD / PDET1 pin of the first RF transceiver.

[0010] In an optional implementation, the fifth RF path is connected to the TX1_UHB pin of the second RF transceiver, and the fifth RF path includes a third power amplifier, a third coupler, a fourth RF switch and a second filter; the TX1_UHB pin of the second RF transceiver is connected to the input end of the third power amplifier, the output end of the third power amplifier is connected to the first connection end of the third coupler, the second connection end of the third coupler is connected to the first connection end of the fourth RF switch, the common end of the fourth RF switch is connected to the first connection end of the second filter, and the second connection end of the second filter is connected to the third antenna; the sixth RF path is connected to the RX1_UHB pin of the second RF transceiver, and the sixth RF path includes the second filter, the fourth RF switch and the third filter; the third antenna is connected to the second connection end of the second filter, the first connection end of the second filter is connected to the common end of the fourth RF switch, the second connection end of the fourth RF switch is connected to the first connection end of the third filter, and the second connection end of the third filter is connected to the RX1_UHB pin of the second RF transceiver; the seventh RF path is connected to the TX2_UHB pin of the second RF transceiver, and the seventh RF path is connected to the TX3_UHB pin of the second RF transceiver, and the seventh RF path is connected to the TX4_UHB pin of the second RF transceiver, and the seventh RF path is connected to the TX5_UHB pin of the second RF transceiver, and the seventh RF path is connected to the TX6_UHB pin of the second RF transceiver, and the seventh RF path is connected to the TX7_UHB pin of the second RF transceiver, and the seventh RF path is connected to the TX8_UHB pin of the second RF transceiver, and the seventh RF path is connected to the TX9_UHB pin of the second The seventh RF path includes a fourth power amplifier, a fourth coupler, a fifth RF switch and a fourth filter; the TX2_UHB pin of the second RF component is connected to the input end of the fourth power amplifier, the output end of the fourth power amplifier is connected to the first connection end of the fourth coupler, the second connection end of the fourth coupler is connected to the first connection end of the fifth RF switch, the common end of the fifth RF switch is connected to the first connection end of the fourth filter, and the second connection end of the fourth filter is connected to the fourth antenna; the second RF component is connected to the RX2_UHB pin of the second RF transceiver, and the eighth RF path includes the fourth filter, the fifth RF switch and the fifth filter; the fourth antenna is connected to the second connection end of the fourth filter, the first connection end of the fourth filter is connected to the common end of the fifth RF switch, the second connection end of the fifth RF switch is connected to the first connection end of the fifth filter, and the second connection end of the fifth filter is connected to the RX2_UHB pin of the second RF transceiver; the fourth RF switch is used to control the reception and transmission of RF signals between the second RF transceiver and the third antenna; the fifth RF switch is used to control the reception and transmission of RF signals between the second RF transceiver and the fourth antenna.

[0011] In an optional implementation, the second RF component is electrically connected to a DPD / PDET1 pin of the second RF transceiver and a DPD / PDET2 pin of the second RF transceiver.

[0012] In an optional embodiment, the wireless communication circuit also includes a quartz crystal oscillator, a frequency division circuit and a GPS receiver; the RF pin of the GPS receiver is connected to the GPS pin of the baseband controller; the quartz crystal oscillator is connected to the CLK pin of the baseband controller, the CLK pin of the GPS receiver and the CLK pin of the first RF transceiver through the frequency division circuit, and the frequency division circuit is used to provide a first clock signal for the baseband controller, the GPS receiver and the first RF transceiver respectively; the quartz crystal oscillator is connected to the second RF transceiver, and the quartz crystal oscillator is used to provide a second clock signal for the second RF transceiver, and the second clock signal is twice the first clock signal.

[0013] In an optional implementation, a radio frequency front-end module is disposed between the WiFi controller and each of the fifth antennas.

[0014] In an optional implementation, the DDR3 EBI0 pin of the baseband controller is connected to a double data rate memory; and the SDCC1 pin of the baseband controller is connected to a Flash memory.

[0015] In a second aspect, an embodiment of the present invention further provides a wireless communication device, comprising the wireless communication circuit as described in the first aspect.

[0016] The embodiments of the present invention have the following advantages:

[0017] An embodiment of the present invention provides a wireless communication circuit, wherein the wireless communication circuit includes a baseband controller, a first RF transceiver, a second RF transceiver, a first RF component, a second RF component, a first antenna, a second antenna, a third antenna, a fourth antenna, at least one fifth antenna and a WiFi controller; the first RF component includes at least four different RF paths, and the second RF component includes at least four different RF paths; the first RF transceiver, the second RF transceiver and the WiFi controller are electrically connected to the baseband controller respectively; the first RF component is electrically connected to the first antenna, the second antenna and the first RF transceiver; the second RF component is electrically connected to the third antenna, the fourth antenna and the second RF transceiver; the WiFi controller is electrically connected to each of the fifth antennas. Through a baseband controller, the technical effect of simultaneously supporting the reception and transmission of LTE signals and WiFi signals and reducing costs is achieved; through at least four different RF paths in the first RF component and at least four different RF paths in the second RF component, the technical effect of the wireless communication circuit simultaneously supporting multiple frequency bands is achieved; through the WiFi controller, the baseband controller, the second RF transceiver and the second RF component, the authorized assisted access function of the wireless communication circuit is realized, thereby achieving the technical effect of high-speed LTE.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic diagram of the structure of a wireless communication circuit provided in an embodiment of the present application is shown;

[0021] Figure 2 A schematic diagram showing the structure of another wireless communication circuit provided in an embodiment of the present application is shown;

[0022] Figure 3 A schematic diagram of a connection structure between a first radio frequency component and a first radio frequency transceiver in a wireless communication circuit provided in an embodiment of the present application is shown;

[0023] Figure 4A schematic diagram of a connection structure between a second radio frequency component and a second radio frequency transceiver in a wireless communication circuit provided in an embodiment of the present application is shown;

[0024] Figure 5 A schematic diagram of the connection structure of a power supply circuit inside a power supply device in a wireless communication circuit provided in an embodiment of the present application is shown.

[0025] Description of main component symbols:

[0026] 1000-wireless communication circuit; 100-baseband controller; 200-first RF component; 250-first antenna; 350-second antenna; 450-third antenna; 550-fourth antenna; 203-first RF switch; 204-first filter; 205-second RF switch; 206-first duplexer; 207-first coupler; 208-first power amplifier; 209-second duplexer; 210-second coupler; 211-second power amplifier; 212-third RF switch; 300-second RF component; 302-second filter; 303-fourth RF switch; 304-third coupler; 305-third power amplifier ; 306-third filter; 307-fourth power amplifier; 308-fourth coupler; 309-fifth RF switch; 310-fourth filter; 312-fifth filter; 400-first RF transceiver; 500-second RF transceiver; 600-WiFi controller; 650-fifth antenna; 700-RF front-end module; 750-quartz crystal oscillator; 800-frequency division circuit; 850-GPS receiver; 900-double data rate memory; 950-Flash memory; 970-power supply device; 971-power adapter; 972-first controller; 973-second controller; 974-third controller. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of the template are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] Example 1

[0033] Please refer to Figure 1 , Figure 1 A schematic structural diagram of a wireless communication circuit provided in an embodiment of the present application is shown.

[0034] The wireless communication circuit 1000 includes a baseband controller 100, a first RF transceiver 400, a second RF transceiver 500, a first RF component 200, a second RF component 300, a first antenna 250, a second antenna 350, a third antenna 450, a fourth antenna 550, at least one fifth antenna 650 and a WiFi controller 600; the first RF component 200 includes at least four different RF paths, and the second RF component 300 includes at least four different RF paths; the first RF transceiver 400, the second RF transceiver 500 and the WiFi controller 600 are electrically connected to the baseband controller 100 respectively; the first RF component 200 is electrically connected to the first antenna 250, the second antenna 350 and the first RF transceiver 400; the second RF component 300 is electrically connected to the third antenna 450, the fourth antenna 550 and the second RF transceiver 500; the WiFi controller 600 is electrically connected to each of the fifth antennas 650.

[0035] Specifically, the wireless communication circuit includes at least one fifth antenna 650. The specific number of the fifth antenna 650 can be set according to actual needs. In this embodiment, three fifth antennas 650 are used as an example. It is worth noting that the performance will be reduced as one fifth antenna 650 is reduced.

[0036] Preferably, the baseband controller 100 is a FSM9955 chip, the first RF transceiver 400 is a FTR8900 chip, the second RF transceiver 500 is a FTR89500 chip, and the WiFi controller is a QCA9880 chip.

[0037] In this embodiment, a baseband controller is used to simultaneously support the reception and transmission of LTE signals and WiFi signals, thereby achieving a technical effect of reducing costs; at least four different RF paths in the first RF component and at least four different RF paths in the second RF component are used to achieve a technical effect of the wireless communication circuit simultaneously supporting multiple frequency bands; the WiFi controller, the baseband controller, the second RF transceiver and the second RF component are used to achieve the authorized assisted access function of the wireless communication circuit, thereby achieving the technical effect of high-speed LTE.

[0038] Please refer to Figure 2 , Figure 2 A schematic structural diagram of another wireless communication circuit provided in an embodiment of the present application is shown.

[0039] In an optional implementation, the TXD AC0 pin of the baseband controller 100 is connected to the BB_TX1 pin of the first RF transceiver 400; the BB RX0 pin of the baseband controller 100 is connected to the BB RX1 pin of the first RF transceiver 400; the TXD AC1 pin of the baseband controller 100 is connected to the BB_TX2 pin of the first RF transceiver 400; the BB RX1 pin of the baseband controller 100 is connected to the BB RX2 pin of the first RF transceiver 400; the TXD AC2 pin of the baseband controller 100 is connected to the BB_TX1 pin of the second RF transceiver 500; the BB RX2 pin of the baseband controller 100 is connected to the BB RX1 pin of the second RF transceiver 500; the TXDAC3 pin of the baseband controller 100 is connected to the BB_TX2 pin of the second RF transceiver 500; the BB RX3 pin of the baseband controller 100 is connected to the BB RX2 pin of the second RF transceiver 500; The RX5 pin is connected to the BB RXNL pin of the second RF transceiver 500 ; and the PCIE pin of the baseband controller 100 is connected to the WiFi controller 600 .

[0040] In an optional embodiment, the wireless communication circuit 1000 also includes a quartz crystal oscillator 750, a frequency division circuit 800 and a GPS receiver 850; the RF pin of the GPS receiver 850 is connected to the GPS pin of the baseband controller 100; the quartz crystal oscillator 750 is electrically connected to the CLK pin of the baseband controller 100, the CLK pin of the GPS receiver 850 and the CLK pin of the first RF transceiver 400 through the frequency division circuit 800, and the frequency division circuit 800 is used to provide a first clock signal to the baseband controller 100, the GPS receiver 850 and the first RF transceiver 400 respectively; the quartz crystal oscillator 750 is connected to the second RF transceiver 500, and the quartz crystal oscillator 750 is used to provide a second clock signal to the second RF transceiver 500, and the second clock signal is twice the first clock signal.

[0041] Specifically, the quartz crystal oscillator 750 is a voltage-controlled temperature compensated crystal oscillator (VCTCXO) with a frequency of 38.4 MHz, and the voltage-controlled temperature compensated crystal oscillator provides a second clock signal of 38.4 MHz for the second RF transceiver 500. The frequency division circuit 800 is a 74LVC1G80 chip, and the 74LVC1G80 chip divides the frequency of 38.4 MHz into a first clock signal of 19.2 MHz, so that the quartz crystal oscillator 750 provides a first clock signal of 19.2 MHz for the baseband controller 100, the GPS receiver 850 and the first RF transceiver 400 through the frequency division circuit. The GPS receiver 850 realizes the synchronization of the baseband controller 100 with the satellite time.

[0042] In an optional implementation, a radio frequency front-end module is disposed between the WiFi controller and each of the fifth antennas.

[0043] Specifically, the RF front-end module 700 (RF Front-End Modules, FEM) is a highly integrated RF device that integrates PA (Power Amplifier, power amplifier), LNA (Low Noise Amplifier, low noise amplifier) ​​and RF switch into one chip. The RF front-end module 700 has the advantages of improving integration and reducing costs, and has the functions of PA and LNA.

[0044] In an optional implementation, the DDR3 EBI0 pin of the baseband controller 100 is connected to the double data rate memory 900 ; and the SDCC1 pin of the baseband controller 100 is connected to the Flash memory 950 .

[0045] In an optional embodiment, the MTP PWR pin of the baseband controller 100, the PWR pin of the first RF transceiver 400, and the PWR pin of the second RF transceiver 500 are respectively connected to a power supply device 970, and the power supply device 970 is used to provide power for the baseband controller 100, the first RF transceiver 400, and the second RF transceiver 500.

[0046] Please refer to Figure 3 , Figure 3 A schematic diagram of the connection structure between a first radio frequency component and a first radio frequency transceiver in a wireless communication circuit provided in an embodiment of the present application is shown.

[0047] In an optional embodiment, the first RF component 200 includes a first RF path for transmitting a first RF signal, a second RF path for receiving the first RF signal, a third RF path for receiving a second RF signal or a third RF signal, and a fourth RF path for transmitting the second RF signal or the third RF signal.

[0048] The first RF path is connected to the RX1_LB pin of the first RF transceiver 400, and the first RF path includes a first RF switch 203, a first filter 204, a second RF switch 205 and a first duplexer 206; the first antenna 250 is connected to the first connection end of the first RF switch 203, the second antenna 350 is connected to the second connection end of the first RF switch 203, the common end of the first RF switch 203 is connected to the first connection end of the first filter 204, the second connection end of the first filter 204 is connected to the common end of the second RF switch 205, the first connection end of the second RF switch 205 is connected to the first connection end of the first duplexer 206, and the second connection end of the first duplexer 206 is connected to the RX1_LB pin of the first RF transceiver 400.

[0049] The second RF path is connected to the TX1_LB pin of the first RF transceiver 400, and the second RF path includes a first power amplifier 208, a first coupler 207, the first duplexer 206, the second RF switch 205, the first filter 204 and the first RF switch 203; the TX1_LB pin of the first RF transceiver 400 is connected to the input end of the first power amplifier, the output end of the first power amplifier 208 is connected to the input end of the first coupler 207, the first output end of the first coupler 207 is connected to the third connection end of the first duplexer 206, the first connection end of the first duplexer 206 is connected to the first connection end of the second RF switch 205, the common end of the second RF switch 205 is connected to the second connection end of the first filter 204, the first connection end of the first filter 204 is connected to the common end of the first RF switch 203, the first connection end of the first RF switch 203 is connected to the first antenna 250, and the second connection end of the first RF switch 203 is connected to the second antenna 350.

[0050] The third RF path is connected to the TX1_MB pin of the first RF transceiver 400, and the third RF path includes a second power amplifier 211, a second coupler 210, a second duplexer 209, the second RF switch 205, the first filter 204 and the first RF switch 203; the TX1_MB pin of the first RF transceiver 400 is connected to the input end of the second power amplifier 211, the output end of the second power amplifier 211 is connected to the input end of the second coupler 210, the first output end of the second coupler 210 is connected to the first connection end of the second duplexer 209, the second connection end of the second duplexer 209 is connected to the second connection end of the second RF switch 205, the common end of the second RF switch 205 is connected to the second connection end of the first filter 204, the first connection end of the first filter 204 is connected to the common end of the first RF switch 203, the first connection end of the first RF switch 203 is connected to the first antenna 250, and the second connection end of the first RF switch 203 is connected to the second antenna 350.

[0051] The fourth RF path is connected to the RX1_MB pin of the first RF transceiver 400, and the fourth RF path includes the first RF switch 203, the first filter 204, the second RF switch 205 and the second duplexer 209; the first antenna 250 is connected to the first connection end of the first RF switch 203, the second antenna 350 is connected to the second connection end of the first RF switch 203, the common end of the first RF switch 203 is connected to the first connection end of the first filter 204, the second connection end of the first filter 204 is connected to the common end of the second RF switch 205, and the second connection end of the second RF switch 205 is connected to the second connection end of the second duplexer 209; the third connection end of the second duplexer 209 is connected to the RX1_MB pin of the first RF transceiver 400.

[0052] The first RF switch 203 is used to select the second antenna 350 or the first antenna 250 to send or receive signals; the second RF switch 205 is used to select the type of RF signal to be received or sent.

[0053] Specifically, the first antenna 250 may be a built-in antenna, and the second antenna 350 may be an external antenna; the first antenna 250 and the second antenna 350 may both be built-in antennas; the first antenna 250 and the second antenna 350 may both be external antennas. The first antenna 250 and the second antenna 350 may be set according to actual needs.

[0054] Preferably, the first RF signal is band 13, the second RF signal is band 4, and the third RF signal is band 66. Because band 4 and band 66 overlap in frequency, that is, band 66 includes band 4, the RF paths of band 4 and band 66 can be shared.

[0055] In an optional embodiment, the first RF component 200 also includes a third RF switch 212, and the first RF component 200 is connected to the DPD / PDET1 pin of the first RF transceiver 400; the first connection end of the third RF switch 212 is connected to the second output end of the first coupler 207, the second connection end of the third RF switch 212 is connected to the second output end of the second coupler 210, and the common end of the third RF switch 212 is connected to the DPD / PDET1 pin of the first RF transceiver 400.

[0056] Specifically, the first coupler 207 and the second coupler 210 both output a radio frequency signal, and the third radio frequency switch 212 is used to select the radio frequency signal for digital pre-distortion processing (Digital Pre-Distortion, DPD). The first connection end of the third radio frequency switch 212 is connected to the second output end of the first coupler 207, the second connection end of the third radio frequency switch 212 is connected to the second output end of the second coupler 210, and the common end of the third radio frequency switch 212 is connected to the DPD / PDET1 pin of the first radio frequency transceiver 400, so that the radio frequency signal output by the first coupler 207 and the radio frequency signal output by the second coupler 210 can both achieve the technical effect of digital pre-distortion processing.

[0057] In this embodiment, the baseband controller 100 controls the first RF component 200 to output different RF signals, that is, the baseband controller 100 controls the first RF component 200 so that the first antenna 250 receives any one of the first RF signal, the second RF signal and the third RF signal, or the second antenna 350 sends any one of the first RF signal, the second RF signal and the third RF signal, thereby achieving the technical effect that the wireless communication circuit supports multiple frequency bands at the same time.

[0058] Please refer to Figure 4 , Figure 4 A schematic diagram of the connection structure between a second radio frequency component and a second radio frequency transceiver in a wireless communication circuit provided in an embodiment of the present application is shown.

[0059] In an optional embodiment, the first RF component 200 also includes a third RF switch 212, and the first RF component 200 is connected to the DPD / PDET1 pin of the first RF transceiver 400; the first connection end of the third RF switch 212 is connected to the second output end of the first coupler 207, the second connection end of the third RF switch 212 is connected to the second output end of the second coupler 210, and the common end of the third RF switch 212 is connected to the DPD / PDET1 pin of the first RF transceiver 400.

[0060] Specifically, the first coupler 207 and the second coupler 210 output a radio frequency signal respectively, and the third radio frequency switch 212 is used to select the radio frequency signal processed by digital pre-distortion (Digital Pre-Distortion, DPD), and transmit the radio frequency signal to the DPD / PDET1 pin of the first radio frequency transceiver 400 to achieve the technical effect of digital pre-distortion processing.

[0061] In an optional implementation, the second RF component 300 includes a fifth RF path and a seventh RF path for receiving a fourth RF signal, and a sixth RF path and an eighth RF path for transmitting the fourth RF signal.

[0062] The fifth RF path is connected to the TX1_UHB pin of the second RF transceiver 500, and the fifth RF path includes a third power amplifier 305, a third coupler 304, a fourth RF switch 303 and a second filter 302; the TX1_UHB pin of the second RF transceiver 500 is connected to the input end of the third power amplifier 305, the output end of the third power amplifier 305 is connected to the first connection end of the third coupler 304, the second connection end of the third coupler 304 is connected to the first connection end of the fourth RF switch 303, the common end of the fourth RF switch 303 is connected to the first connection end of the second filter 302, and the second connection end of the second filter 302 is connected to the third antenna 450.

[0063] The sixth RF path is connected to the RX1_UHB pin of the second RF transceiver 500, and the sixth RF path includes the second filter 302, the fourth RF switch 303 and the third filter 306; the third antenna 450 is connected to the second connection end of the second filter 302, the first connection end of the second filter 302 is connected to the common end of the fourth RF switch 303, the second connection end of the fourth RF switch 303 is connected to the first connection end of the third filter 306, and the second connection end of the third filter 306 is connected to the RX1_UHB pin of the second RF transceiver 500.

[0064] The seventh RF path is connected to the TX2_UHB pin of the second RF transceiver 500, and the seventh RF path includes a fourth power amplifier 307, a fourth coupler 308, a fifth RF switch 309 and a fourth filter 310; the TX2_UHB pin of the second RF transceiver 500 is connected to the input end of the fourth power amplifier 307, the output end of the fourth power amplifier 307 is connected to the first connection end of the fourth coupler 308, the second connection end of the fourth coupler 308 is connected to the first connection end of the fifth RF switch 309, the common end of the fifth RF switch 309 is connected to the first connection end of the fourth filter 310, and the second connection end of the fourth filter 310 is connected to the fourth antenna 550.

[0065] The eighth RF path is connected to the RX2_UHB pin of the second RF transceiver 500, and the eighth RF path includes the fourth filter 310, the fifth RF switch 309 and the fifth filter 312; and the second RF component 300 is connected to the RX2_UHB pin of the second RF transceiver 500, the fourth antenna 550 is connected to the second connection end of the fourth filter 310, the first connection end of the fourth filter 310 is connected to the common end of the fifth RF switch 309, the second connection end of the fifth RF switch 309 is connected to the first connection end of the fifth filter 312, and the second connection end of the fifth filter 312 is connected to the RX2_UHB pin of the second RF transceiver 500.

[0066] The fourth RF switch 303 is used to control the reception and transmission of RF signals between the second RF transceiver 500 and the third antenna 450 ; the fifth RF switch 309 is used to control the reception and transmission of RF signals between the second RF transceiver 500 and the fourth antenna 550 .

[0067] In this embodiment, the fifth RF path and the seventh RF path are both used to receive the fourth RF signal, and the sixth RF path and the eighth RF path are both used to transmit the fourth RF signal. It can be understood that the number of RF paths used to receive or transmit the fourth RF signal is usually an even number of two, four or more, and if one RF path for receiving or transmitting is missing, the performance will be reduced.

[0068] Preferably, the fourth radio frequency signal is band 46.

[0069] In an optional implementation, the second RF component 300 is electrically connected to a DPD / PDET1 pin of the second RF transceiver 500 and a DPD / PDET2 pin of the second RF transceiver 500 .

[0070] Specifically, the third coupler 304 outputs a RF signal to the DPD / PDET1 pin of the second RF transceiver, and the fourth coupler 308 outputs a RF signal to the DPD / PDET2 pin of the second RF transceiver to achieve the technical effect of digital predistortion processing of the RF signal.

[0071] Please refer to Figure 5 , Figure 5 A schematic diagram of the connection structure of a power supply circuit inside a power supply device in a wireless communication circuit provided in an embodiment of the present application is shown.

[0072] In an optional embodiment, the power supply device 970 includes a power adapter 971, a first controller 972, a second controller 973 and a third controller 974; the power adapter 971 is connected to the first connection end of the first controller 972, the second connection end of the first controller 972 is connected to the second controller 973, the third connection end of the first controller 972 is connected to the third controller 974, and the third controller 974 is electrically connected to the MTP PWR pin of the baseband controller 100, the PWR pin of the first RF transceiver 400 and the PWR pin of the second RF transceiver 500.

[0073] Preferably, the first controller 972 is an MP8770 chip, the second controller 973 is an MP8009 chip, and the third controller 974 is a PMF9900 chip. The power supply device 970 can be powered by a power adapter or by Power Over Ethernet (POE).

[0074] An embodiment of the present invention provides a wireless communication circuit, wherein the wireless communication circuit includes a baseband controller 100, a first RF transceiver 400, a second RF transceiver 500, a first RF component 200, a second RF component 300, a second antenna 350, a first antenna 250, a third antenna 450, a fourth antenna 550, at least one fifth antenna 650 and a WiFi controller 600; the first RF component 200 includes at least four different RF paths, and the second RF component 300 includes at least four different RF paths; the first RF transceiver 400, the second RF transceiver 500 and the WiFi controller 600 are electrically connected to the baseband controller 100 respectively; the first RF component 200 is electrically connected to the second antenna 350, the first antenna 250 and the first RF transceiver 400; the second RF component 300 is electrically connected to the third antenna 450, the fourth antenna 550 and the second RF transceiver 500; the WiFi controller 600 is electrically connected to each of the fifth antennas 650. Through a baseband controller 100, the technical effect of simultaneously supporting the reception and transmission of LTE signals and WiFi signals and reducing costs is achieved; through at least four different RF paths in the first RF component 200 and at least four different RF paths in the second RF component 300, the technical effect of the wireless communication circuit simultaneously supporting multiple frequency bands is achieved; through the WiFi controller 600, the baseband controller 100, the second RF transceiver 500 and the second RF component 300, the authorized assisted access function of the wireless communication circuit is achieved, thereby achieving the technical effect of high-speed LTE.

[0075] Example 2

[0076] An embodiment of the present invention further provides a wireless communication device, comprising the wireless communication circuit as described in the above-mentioned embodiment 1.

[0077] The wireless communication device provided in the embodiment of the present invention has the same technical features as the wireless communication circuit provided in the above-mentioned embodiment 1, and therefore can also solve the same technical problems and achieve the same technical effects.

[0078] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the wireless communication circuit described above can refer to the corresponding process of the wireless communication circuit 1000 provided in Example 1, and will not be repeated here.

[0079] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0080] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0081] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A wireless communication circuit, characterized in that: It includes a baseband controller, a first radio frequency transceiver, a second radio frequency transceiver, a first radio frequency component, a second radio frequency component, a first antenna, a second antenna, a third antenna, a fourth antenna, at least one fifth antenna and a WiFi controller; The first radio frequency component includes at least four different radio frequency paths, and the second radio frequency component includes at least four different radio frequency paths; The first RF transceiver, the second RF transceiver and the WiFi controller are electrically connected to the baseband controller respectively; The first RF component is electrically connected to the first antenna, the second antenna, and the first RF transceiver; The second RF component is electrically connected to the third antenna, the fourth antenna, and the second RF transceiver; The WiFi controller is electrically connected to each of the fifth antennas; Wherein, the TXD AC0 pin of the baseband controller is connected to the BB_TX1 pin of the first RF transceiver; The BB RX0 pin of the baseband controller is connected to the BB RX1 pin of the first RF transceiver; The TXD AC1 pin of the baseband controller is connected to the BB_TX2 pin of the first RF transceiver; The BB RX1 pin of the baseband controller is connected to the BB RX2 pin of the first RF transceiver; The TXD AC2 pin of the baseband controller is connected to the BB_TX1 pin of the second RF transceiver; The BB RX2 pin of the baseband controller is connected to the BB RX1 pin of the second RF transceiver; The TXD AC3 pin of the baseband controller is connected to the BB_TX2 pin of the second RF transceiver; The BB RX3 pin of the baseband controller is connected to the BB RX2 pin of the second RF transceiver; The BB RX5 pin of the baseband controller is connected to the BB RXNL pin of the second RF transceiver; The PCIE pin of the baseband controller is connected to the WiFi controller; The first RF component includes a first RF path for transmitting a first RF signal, a second RF path for receiving the first RF signal, a third RF path for receiving a second RF signal or a third RF signal, and a fourth RF path for transmitting the second RF signal or the third RF signal; The first RF path is connected to the RX1_LB pin of the first RF transceiver, and the first RF path includes a first RF switch, a first filter, a second RF switch and a first duplexer; the first antenna is connected to the first connection end of the first RF switch, the second antenna is connected to the second connection end of the first RF switch, the common end of the first RF switch is connected to the first connection end of the first filter, the second connection end of the first filter is connected to the common end of the second RF switch, the first connection end of the second RF switch is connected to the first connection end of the first duplexer, and the second connection end of the first duplexer is connected to the RX1_LB pin of the first RF transceiver; The second RF path is connected to the TX1_LB pin of the first RF transceiver, and the second RF path includes a first power amplifier, a first coupler, the first duplexer, the second RF switch, the first filter and the first RF switch; the TX1_LB pin of the first RF transceiver is connected to the input end of the first power amplifier, the output end of the first power amplifier is connected to the input end of the first coupler, the first output end of the first coupler is connected to the third connection end of the first duplexer, the first connection end of the first duplexer is connected to the first connection end of the second RF switch, the common end of the second RF switch is connected to the second connection end of the first filter, the first connection end of the first filter is connected to the common end of the first RF switch, the first connection end of the first RF switch is connected to the first antenna, and the second connection end of the first RF switch is connected to the second antenna; The third RF path is connected to the TX2_MB pin of the first RF transceiver, and the third RF path includes a second power amplifier, a second coupler, a second duplexer, the second RF switch, the first filter and the first RF switch; the TX2_MB pin of the first RF transceiver is connected to the input end of the second power amplifier, the output end of the second power amplifier is connected to the input end of the second coupler, the first output end of the second coupler is connected to the first connection end of the second duplexer, the second connection end of the second duplexer is connected to the second connection end of the second RF switch, the common end of the second RF switch is connected to the second connection end of the first filter, the first connection end of the first filter is connected to the common end of the first RF switch, the first connection end of the first RF switch is connected to the first antenna, and the second connection end of the first RF switch is connected to the second antenna; The fourth RF path is connected to the RX2_MB pin of the first RF transceiver, and the fourth RF path includes the first RF switch, the first filter, the second RF switch and the second duplexer; the first antenna is connected to the first connection end of the first RF switch, the second antenna is connected to the second connection end of the first RF switch, the common end of the first RF switch is connected to the first connection end of the first filter, the second connection end of the first filter is connected to the common end of the second RF switch, the second connection end of the second RF switch is connected to the second connection end of the second duplexer, and the third connection end of the second duplexer is connected to the RX2_MB pin of the first RF transceiver; The first radio frequency switch is used to select the first antenna or the second antenna to send or receive signals; The second radio frequency switch is used to select the type of radio frequency signal received or sent; The first RF component further includes a third RF switch, the first RF component is connected to the DPD / PDET1 pin of the first RF transceiver; the first connection end of the third RF switch is connected to the second output end of the first coupler, the second connection end of the third RF switch is connected to the second output end of the second coupler, and the common end of the third RF switch is connected to the DPD / PDET1 pin of the first RF transceiver; The second RF component includes a fifth RF path and a seventh RF path for receiving a fourth RF signal and a sixth RF path and an eighth RF path for transmitting the fourth RF signal; The fifth RF path is connected to the TX1_UHB pin of the second RF transceiver, and the fifth RF path includes a third power amplifier, a third coupler, a fourth RF switch and a second filter; the TX1_UHB pin of the second RF transceiver is connected to the input end of the third power amplifier, the output end of the third power amplifier is connected to the first connection end of the third coupler, the second connection end of the third coupler is connected to the first connection end of the fourth RF switch, the common end of the fourth RF switch is connected to the first connection end of the second filter, and the second connection end of the second filter is connected to the third antenna; The sixth RF path is connected to the RX1_UHB pin of the second RF transceiver, and the sixth RF path includes the second filter, the fourth RF switch and the third filter; the third antenna is connected to the second connection end of the second filter, the first connection end of the second filter is connected to the common end of the fourth RF switch, the second connection end of the fourth RF switch is connected to the first connection end of the third filter, and the second connection end of the third filter is connected to the RX1_UHB pin of the second RF transceiver; The seventh RF path is connected to the TX2_UHB pin of the second RF transceiver, and the seventh RF path includes a fourth power amplifier, a fourth coupler, a fifth RF switch and a fourth filter; the TX2_UHB pin of the second RF transceiver is connected to the input end of the fourth power amplifier, the output end of the fourth power amplifier is connected to the first connection end of the fourth coupler, the second connection end of the fourth coupler is connected to the first connection end of the fifth RF switch, the common end of the fifth RF switch is connected to the first connection end of the fourth filter, and the second connection end of the fourth filter is connected to the fourth antenna; The eighth RF path is connected to the RX2_UHB pin of the second RF transceiver, and the eighth RF path includes the fourth filter, the fifth RF switch and the fifth filter; the fourth antenna is connected to the second connection end of the fourth filter, the first connection end of the fourth filter is connected to the common end of the fifth RF switch, the second connection end of the fifth RF switch is connected to the first connection end of the fifth filter, and the second connection end of the fifth filter is connected to the RX2_UHB pin of the second RF transceiver; The fourth RF switch is used to control the reception and transmission of RF signals between the second RF transceiver and the third antenna; The fifth RF switch is used to control the reception and transmission of RF signals between the second RF transceiver and the fourth antenna; The second RF component is electrically connected to a DPD / PDET1 pin of the second RF transceiver and a DPD / PDET2 pin of the second RF transceiver.

2. The wireless communication circuit according to claim 1, characterized in that: It also includes a quartz crystal oscillator, a frequency division circuit, and a GPS receiver; The RF pin of the GPS receiver is connected to the GPS pin of the baseband controller; The quartz crystal oscillator is connected to the CLK pin of the baseband controller, the CLK pin of the GPS receiver and the CLK pin of the first radio frequency transceiver through the frequency division circuit, and the frequency division circuit is used to provide a first clock signal for the baseband controller, the GPS receiver and the first radio frequency transceiver respectively; The quartz crystal oscillator is connected to the second RF transceiver, and is used to provide a second clock signal for the second RF transceiver, where the second clock signal is twice the first clock signal.

3. The wireless communication circuit according to claim 1, characterized in that: A radio frequency front-end module is arranged between the WiFi controller and each of the fifth antennas.

4. The wireless communication circuit according to claim 1, characterized in that: The DDR3 EBI0 pin of the baseband controller is connected to a double data rate memory; The SDCC1 pin of the baseband controller is connected to the Flash memory.

5. A wireless communication device, characterized in that: The wireless communication circuit comprises the wireless communication circuit as claimed in any one of claims 1 to 4.

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