WO2022007900A1 - Network switching circuit and customer premises equipment - Google Patents

Abstract

A network switching circuit and customer premises equipment: a networking circuit detects mobile network information in order to generate a mobile network detection signal and send same to a remote card feeding platform, receives a virtual identity identification signal generated by the remote card feeding platform on the basis of the mobile network detection signal, receives a corresponding mobile network signal on the basis of the virtual identity identification signal, and sends a mobile network signal by means of USB bus communication; a network interface circuit receives and transmits the mobile network signal; a master control circuit generates a high-speed serial bus communication signal and an original wired communication signal on the basis of the mobile network signal; a wireless network circuit generates a wireless network signal on the basis of the high-speed serial bus communication signal; and a wired network circuit generates a wired network communication signal on the basis of the original wired communication signal; dynamic handover of the network operator is implemented automatically on the basis of network quality in order to access a corresponding mobile network and convert same to a wireless network and a wired network for use, saving costs and enhancing the user experience of network use.

Description

A network switching circuit and customer front-end equipment

This application claims the priority of the Chinese Patent Application No. 202021331719.0 filed with the Chinese Patent Office on July 8, 2020, the entire contents of which are incorporated herein by reference.

technical field

The present application belongs to the field of communication technologies, and in particular relates to a network switching circuit and a customer front-end device.

Background technique

At present, traditional CPE equipment (Customer Premise Equipment, which is actually a mobile signal access device that receives mobile signals and forwards them with wireless WIFI signals) usually provides 1 to 2 card slots to correspond to Insert a limited number of SIM cards (usually 1 to 2) to enable the CPE device to access the mobile network of the network operator specified by the SIM card, and then convert the mobile network into a wireless WIFI network or wired network for customers to use. Before using this kind of CPE equipment that uses a physical SIM card to switch network operators, the user must know the network coverage of the mobile operator at the location and purchase the SIM card of the corresponding operator in advance. During the use process, the network of other operators cannot be dynamically replaced. , resulting in poor network quality and poor user experience when using the network.

Therefore, there is a problem in the traditional technical solution that when the network signal provided by the purchased SIM card is not good, the card cannot be automatically changed to access the network of a different network operator to improve the network quality.

technical problem

The purpose of this application is to provide a network switching circuit and a customer pre-installation device, aiming to solve the problem that the purchased SIM card cannot automatically change the card to access different network operators when the network signal provided by the purchased SIM card is not good in the traditional technical solution. network to improve network quality.

technical solutions

A first aspect of the embodiments of the present application provides a network switching circuit that is wirelessly connected to a remote card supply platform, and the network switching circuit includes:

The networking circuit is connected to the remote card supply platform, and is configured to detect the mobile network information of the location to generate a mobile network detection signal and send it to the remote card supply platform, and receive the remote card supply platform according to the The mobile network detects the virtual identity signal issued by the signal, and receives the corresponding mobile network signal according to the virtual identity signal, and sends the mobile network signal through USB bus communication;

a network interface circuit, connected to the networking circuit, configured to receive and transmit the mobile network signal;

a main control circuit, connected to the network interface circuit, and configured to generate a high-speed serial bus communication signal and an original wired communication signal according to the mobile network signal;

a wireless network circuit, connected to the main control circuit, and configured to generate a wireless communication signal according to the high-speed serial bus communication signal;

A wired network circuit, connected to the main control circuit, is configured to generate a wired network communication signal according to the original wired communication signal.

In one of the embodiments, the network switching circuit further includes:

The key circuit is connected to the main control circuit, and is configured to generate a key input signal according to a user operation; the key input signal is used to control the main control circuit to reset or power on and off.

In one embodiment, the wireless network circuit includes:

a wireless network control unit, connected to the main control circuit, and configured to generate a first wireless enable signal, a second wireless enable signal, a first wireless radio frequency signal, and a second wireless radio frequency signal according to the high-speed serial bus communication signal ;

a first radio frequency amplification and coupling unit, connected to the wireless network control unit, and configured to perform power amplification and radio frequency coupling on the first wireless radio frequency signal according to the first wireless enable signal to generate a first sub-wireless communication signal;

a second radio frequency amplification and coupling unit, connected to the wireless network control unit, and configured to perform power amplification and radio frequency coupling on the second wireless radio frequency signal according to the second wireless enable signal to generate a second sub-wireless communication signal; Wherein, the wireless communication signal includes the first sub-wireless communication signal and the second sub-wireless communication signal.

In one embodiment, the wired network circuit includes:

a first network transformer unit, connected to the main control circuit, and configured to generate a first sub-wired network communication signal and a second sub-wired network communication signal according to the original wired communication signal;

a first LAN wired network interface unit, connected to the first network transformer unit, and configured to transmit the first sub wired network communication signal;

A second LAN wired network interface unit, connected to the first network transformer unit, and configured to transmit the second sub wired network communication signal; wherein the wired network communication signal includes the first sub wired network communication signal and communicates signals with the second sub-wired network.

In one of the embodiments, the network switching circuit further includes:

a wired networking circuit, connected to the main control circuit, configured to access a wired external network signal, and generate a first wired network signal according to the wired external network signal;

The main control circuit is further configured to generate the high-speed serial bus communication signal and the original wired communication signal according to the first wired network signal.

In one embodiment, the wired networking circuit includes:

a WAN wired network interface unit, configured to transmit the wired external network signal;

A second network transformer unit, connected to the main control circuit and the WAN wired network interface unit, is configured to generate the first wired network signal according to the wired external network signal.

In one embodiment, the main control circuit includes: a main control chip; wherein the data negative signal terminal of the main control chip and the data positive signal terminal of the main control chip are connected to the network interface circuit in common, The first power supply terminal of the main control chip is connected to the first working DC, the second power terminal of the main control chip is connected to the second working DC, the ground terminal of the main control chip is connected to the power ground, and the main control chip is connected to the power ground. The first positive-phase transmitting end of the control chip, the first negative-phase transmitting end of the main control chip, the first positive-phase receiving end of the main control chip, and the first negative-phase receiving end of the main control chip are connected in common In the second network transformer unit, the second positive-phase transmitting end of the main control chip, the second negative-phase transmitting end of the main control chip, the second positive-phase receiving end of the main control chip, the main control chip The second negative-phase receiving end of the control chip, the third positive-phase transmitting end of the main control chip, the third negative-phase transmitting end of the main control chip, the third positive-phase receiving end of the main control chip, and the The third negative-phase receiving end of the main control chip is commonly connected to the first network transformer unit, the first positive-phase bus transmitting end of the main control chip, the first negative-phase bus transmitting end of the main control chip, the The first positive-phase bus receiving end of the main control chip, the first negative-phase bus receiving end of the main control chip, the first positive-phase bus output clock end of the main control chip, the first The negative-phase bus output clock terminal and the first output reset terminal of the main control chip are commonly connected to the wireless network circuit.

In one of the embodiments, the wireless network control unit adopts a wireless local area network system chip.

In one embodiment, the networking circuit adopts the M2 mobile Internet access module of GLMM18A02.

A second aspect of the embodiments of the present application provides a customer premises equipment, where the customer premises equipment includes the network switching circuit described in any one of the above.

beneficial effect

Compared with the prior art, the embodiment of the present application has the beneficial effects that: the above-mentioned network switching circuit detects mobile network information through the networking circuit to generate a mobile network detection signal and send it to the remote card supply platform, and receives the remote card supply platform according to the The mobile network detects the virtual identity signal generated by the signal, and receives the corresponding mobile network signal according to the virtual identity signal, and sends the mobile network signal through USB bus communication; the network interface circuit receives and transmits the mobile network signal; the main control circuit is based on the mobile network signal. The network signal generates a high-speed serial bus communication signal and an original wired communication signal; the wireless network circuit generates a wireless communication signal according to the high-speed serial bus communication signal; the wired network circuit generates a wired network communication signal according to the original wired communication signal; Dynamically switch network operators to access the mobile network with the best network quality in the location, and convert the accessed mobile network into a wireless network and a wired network for users to connect to the Internet. There is no need to purchase multiple SIM cards in advance, saving money The cost is improved, the convenience of switching the network and connecting to the network for Internet access is improved, the practicability of the network switching circuit is improved, and the user experience of using the network is improved.

Description of drawings

FIG. 1 is a schematic structural diagram of a network switching circuit according to an embodiment of the present application;

FIG. 2 is another schematic structural diagram of a network switching circuit according to an embodiment of the present application;

FIG. 3 is another schematic structural diagram of a network switching circuit according to an embodiment of the present application;

FIG. 4 is another schematic structural diagram of a network switching circuit according to an embodiment of the present application;

FIG. 5 is another schematic structural diagram of a network switching circuit according to an embodiment of the present application;

FIG. 6 is another schematic structural diagram of a network switching circuit according to an embodiment of the present application;

FIG. 7 is another schematic structural diagram of a network switching circuit provided by an embodiment of the present application;

FIG. 8 is an exemplary circuit schematic diagram of a network interface circuit in a network switching circuit provided by an embodiment of the present application;

FIG. 9 is an exemplary circuit schematic diagram of a main control circuit in a network switching circuit provided by an embodiment of the present application;

FIG. 10 is an exemplary circuit schematic diagram of a wired network circuit and a wired networking circuit in a network switching circuit provided by an embodiment of the present application.

Embodiments of the present invention

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the application and simplifying the description, rather than indicating or implying the indicated device. Or elements must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present application.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.

FIG. 1 shows a schematic structural diagram of a network switching circuit provided by the first embodiment of the present application. For the convenience of description, only the parts related to this embodiment are shown, and the details are as follows:

A network switching circuit is wirelessly connected to a remote card supply platform 100, and the network switching circuit includes:

The networking circuit 11 is connected to the remote card supply platform 100, and is configured to detect the mobile network information at the location to generate a mobile network detection signal and send it to the remote card supply platform 100, and receive the remote card supply platform 100 according to the mobile network detection. The virtual identification signal generated by the signal, and the corresponding mobile network signal is received according to the virtual identification signal, and the mobile network signal is sent through the USB bus communication mode; the network interface circuit 12 is connected with the networking circuit 11, and is configured to receive and transmit mobile network signal; the main control circuit 13, connected to the network interface circuit 12, is configured to generate high-speed serial bus communication signals and original wired communication signals according to the mobile network signal; the wireless network circuit 14, connected to the main control circuit 13, is configured to The high-speed serial bus communication signal generates a wireless communication signal; the wired network circuit 15, connected to the main control circuit 13, is configured to generate a wired network communication signal according to the original wired communication signal.

In a specific embodiment, the remote card supply platform 100 may be a cloud server or a remote card supply server, and stores a database in which the information of different network operators and the virtual SIM card data packets correspond one-to-one. Optionally, the networking circuit 11 uses an M2 mobile Internet access module that can be dynamically divided into cards, which is a MODEM module (ie, a modem module) with a built-in seed SIM card. After the network switching circuit is powered on and started, the seed SIM card in the networking circuit 11 uses the mobile network (such as one of 2G, 3G, 4G and 5G mobile networks) to network to establish a communication connection with the remote card supply platform 100 . The networking circuit 11 detects the mobile network information at the location in real time to generate a mobile network detection signal and send it to the remote card supply platform 100, wherein the mobile network information includes the mobile network operator information and the corresponding mobile network signal strength information, etc. The mobile network detection signal sends the mobile network operator information of the location and the mobile network signal strength information to the remote card supply platform 100 . The remote card supply platform 100 receives the mobile network detection signal, and analyzes the mobile network detection signal to obtain information such as the mobile network operator type and mobile network signal strength corresponding to the current location, and the mobile network operator included in the mobile network detection signal. Information and mobile networks can be of one type or of multiple types, such as the telecom mobile network provided by telecom operators and the China Unicom network provided by China Unicom operators. When the mobile network operator information and mobile network are one type, the remote The card supply platform 100 sends the corresponding virtual identity identification signal to the networking circuit 11 according to this kind of mobile network operator information, thereby sending the corresponding virtual SIM card data packet to the networking circuit 11, and the networking circuit 11 accesses the data through the virtual SIM card. The mobile network provided by the mobile network operator; when the mobile network operator information and the mobile network are multiple, the remote card supply platform 100 analyzes and compares the respective signal strengths of the multiple mobile networks, and selects a network with good signal quality (for example, a network The mobile network operator information corresponding to the mobile network with high signal stability and high network signal strength), send the virtual identification signal corresponding to the mobile network operator information to the networking circuit 11, so as to connect the mobile network with the best mobile network quality. The virtual SIM card data packet corresponding to the network operator is sent to the networking circuit 11, and the networking circuit 11 accesses the mobile network provided by the mobile network operator through the virtual SIM card data; that is, the remote card supply platform 100 detects the signal according to the mobile network. Obtain the mobile network operator information with the best mobile network signal quality at the current location, and send the corresponding virtual identity signal to the MODEM module according to the mobile network operator information, which is equivalent to assigning a virtual SIM card to the MODEM module. The mobile network signal sent by the network operator's base station corresponding to the virtual identity signal can be received through the virtual SIM card, and the accessed mobile network signal can be sent to the network interface circuit 12 by means of USB bus communication, and transmitted through the network interface circuit 12 to the main control circuit 13 . The main control circuit 13 generates a high-speed serial bus communication signal according to the mobile network signal and outputs it to the wireless network circuit 14, and the wireless network circuit 14 generates a wireless communication signal according to the high-speed serial bus communication signal, such as 2.4G WIFI wireless network signal and 5G WIFI wireless network signal Network signals, terminal devices (such as mobile phones, etc.) are connected to the Internet through 2.4G WIFI wireless network signals and 5G WIFI wireless network signals; at the same time, the main control circuit 13 generates the original wired communication signal according to the mobile network signal and outputs it to the wired network circuit 15 , the wired network circuit 15 generates a wired network communication signal according to the original wired communication signal, so as to be used by the wired network port device for wired network connection. Since the networking circuit 11 continuously detects the mobile network information of the location, when a certain mobile network signal accessed therein is unstable or the signal strength of the mobile network is weak, etc. resulting in poor network quality, the mobile network operator can be dynamically switched to access the network. A mobile network with good network quality, and converts the mobile network into a WIFI wireless network and a wired network for users to connect to the Internet.

The network switching circuit of the embodiment of the present application can automatically switch network operators quickly and reliably according to the network quality to access the mobile network with the best network quality at the location, and convert the mobile network into a WIFI wireless network and a wired network for users to use For connecting to the Internet, there is no need to purchase multiple SIM cards in advance, which saves costs and improves the convenience of networking. At the same time, two-way WIFI wireless networks are generated according to the connected mobile network, which expands the frequency band supported by wireless WIFI and improves the user's network usage. Experience, improve the practicability of the network switching circuit.

Referring to FIG. 2 , in one embodiment, the network switching circuit further includes: a button circuit 16 .

The key circuit 16 is connected to the main control circuit 13 and is configured to generate key input signals according to user operations; the key input signals are used to control the main control circuit 13 to reset or turn on and off the machine.

In the specific implementation, the reset, startup or shutdown of the main control circuit 13 is controlled by the button circuit 16, wherein the button circuit 16 may include a plurality of buttons, and different buttons correspond to different functions, for example, the first button corresponds to the startup function, The second button corresponds to the reset function, and the third button corresponds to the shutdown function; or the button circuit 16 adopts one button, and realizes different functions such as startup, reset or shutdown through different button pressing durations, so as to save the number of components used and reduce the circuit volume. effect. Through the key circuit 16, the artificial controllability of the network switching circuit can be realized, the power consumption can be controlled, and the practicability of the network switching circuit can be improved.

Referring to FIG. 3 , in one embodiment, the network switching circuit further includes: a filter circuit 17 .

The filtering circuit 17 is connected to the network interface circuit 12 and the main control circuit 13, and is configured to perform filtering and noise reduction processing on the mobile network signal.

In the specific implementation, filtering and noise reduction processing is performed on the mobile network signal by the filtering circuit 17 to filter out the noise interference in the mobile network signal, so that a stable and reliable mobile network signal with low noise interference is output to the main control circuit 13 for mobile network signal processing. The conversion control between the WIFI wireless network signal and the wired network signal, and then output a stable and reliable wireless network and wired network for users to use, and improve the safety and reliability of the network switching circuit.

Referring to FIG. 4 , in one embodiment, the wireless network circuit 14 includes: a wireless network control unit 141 , a first radio frequency amplification and coupling unit 142 and a second radio frequency amplification and coupling unit 143 .

The wireless network control unit 141, connected with the main control circuit 13, is configured to generate the first wireless enable signal, the second wireless enable signal, the first wireless radio frequency signal and the second wireless radio frequency signal according to the high-speed serial bus communication signal; A radio frequency amplification and coupling unit 142, connected to the wireless network control unit 141, is configured to perform power amplification and radio frequency coupling on the first radio radio frequency signal according to the first radio enable signal to generate the first sub-wireless communication signal; the second radio frequency amplification and coupling The unit 143, connected with the wireless network control unit 141, is configured to perform power amplification and radio frequency coupling on the second wireless radio frequency signal according to the second wireless enable signal to generate the second sub-wireless communication signal; wherein, the wireless communication signal includes the first sub-wireless communication signal. The wireless communication signal and the second sub wireless communication signal.

In specific implementation, the wireless network control unit 141 , the first radio frequency amplifying and coupling unit 142 and the second radio frequency amplifying and coupling unit 143 can generate the first sub-wireless communication signal and the first sub-wireless communication signal from the high-speed serial bus communication signal from the main control circuit 13 . The two-sub wireless communication signal is to convert the mobile network to be accessed into two wireless networks, namely 2.4G WIFI wireless network and 5G WIFI wireless network. The radio frequency antenna is sent out for the user to connect to the wireless network, which broadens the frequency band of the wireless WIFI and enhances the strength of the wireless network signal. Optionally, the first radio frequency amplifying and coupling unit 142 and the second radio frequency amplifying and coupling unit 143 also include filters, which can perform filtering and noise reduction processing on the wireless communication signals output after power amplification and radio frequency coupling, so as to output stable and low noise. Interfering wireless communication signals are then transmitted through the 5G radio frequency antenna and the 2.4G radio frequency antenna respectively to improve the stability and reliability of the wireless network supply network.

In one embodiment, optionally, the wireless network control unit 141 adopts a wireless local area network system chip, such as a wireless WIFI dedicated chip QCA9886, which can generate the first wireless enable signal and the second wireless enable signal according to the high-speed serial bus communication signal. signal, the first radio frequency signal and the second radio frequency signal, thereby controlling the first radio frequency amplifying and coupling unit 142 and the second radio frequency amplifying and coupling unit 143 to generate and output two sets of 5G WIFI wireless networks and two sets of 2.4G WIFI wireless networks respectively, For users to use wireless Internet access, the wireless network quality is improved, and the user's network use experience is improved.

Referring to FIG. 5 , in one embodiment, the wired network circuit 15 includes: a first network transformer unit 151 , a first LAN wired network interface unit 152 and a second LAN wired network interface unit 153 .

The first network transformation unit 151, connected to the main control circuit 13, is configured to generate the first sub-wired network communication signal and the first sub-wired network communication signal according to the original wired communication signal; the first LAN wired network interface unit 152, and the first sub wired network communication signal; A network transformation unit 151 is connected and configured to transmit the first sub wired network communication signal; a second LAN wired network interface unit 153 is connected to the first network transformation unit 151 and configured to transmit the second sub wired network communication signal; wherein , the wired network communication signal includes a first sub wired network communication signal and a second sub wired network communication signal.

In a specific implementation, the original wired communication signal output by the main control circuit 13 can be converted into a multi-channel wired network communication signal through the network transformation unit 151 and output, for example, the first network transformation unit 151 in the embodiment of the present application The original wired communication signal output by the circuit 13 is converted into two wired network communication signals, and transmitted through the first LAN wired network interface unit 152 and the second LAN wired network interface unit 153 respectively, wherein the first sub wired network communication signal and The second sub wired network communication signals are all LAN wired network communication signals. Both the first LAN wired network interface unit 152 and the second LAN wired network interface unit 153 include LAN wired network interface components. Optionally, the first LAN wired network interface unit 152 and the second LAN wired network interface unit 153 both include network indicator lights, which can indicate the presence or absence of the wired network and the fault state, for example, when outputting a wired network communication signal, The green indicator is on, the yellow indicator is on when the wired network communication signal is not output, or the yellow indicator is on when the network is faulty. This embodiment can output different types of wired network communication signals, and indicate the state of the wired network communication signals, so that the user can timely and intuitively understand the result of the dynamic switching access from the mobile network to the wired network, and is convenient for network switching fault query and troubleshooting. deal with.

Referring to FIG. 6 , in one embodiment, the network switching circuit further includes: a wired networking circuit 18 .

The wired networking circuit 18, connected to the main control circuit 13, is configured to access the wired external network signal, and generate the first wired network signal according to the wired external network signal; the main control circuit 13 is also configured to generate a high-speed serial line according to the first wired network signal Row bus communication signals and raw wired communication signals.

In a specific implementation, the wired networking circuit 18 can be used to connect to an external network (also called a public network), that is, to connect equipment of a broadband operator. network signal, and generates a first wired network signal according to the wired external network signal, and outputs the first wired network signal to the main control circuit 13 . The main control circuit 13 generates a high-speed serial bus communication signal and an original wired communication signal according to the first wired network signal, and outputs them to the wireless network circuit 14 and the wired network circuit 15 respectively. The high-speed serial bus communication signal is subjected to wireless network conversion control and processing through the wireless network circuit 14, thereby generating and outputting wireless communication signals, such as 5G WIFI wireless network signals and 2.4G WIFI wireless network signals, for users to use wireless Internet access; The wired network circuit 15 performs conversion processing on the original wired communication signal to generate and output two wired network communication signals, such as two wired LAN wired network communication signals, for the user to use for wired network connection.

Referring to FIG. 7 , in one embodiment, the wired networking circuit 18 includes: a WAN wired network interface unit 181 and a second network transformer unit 182 .

The WAN wired network interface unit 181 is configured to transmit wired external network signals; the second network transformation unit 182 is connected to the main control circuit 13 and the WAN wired network interface unit 181, and is configured to generate the first wired network signal according to the wired external network signals .

In a specific implementation, the WAN wired network interface unit 181 includes a WAN wired network interface to access wired external network signals provided by external network equipment, such as broadband network signals provided by equipment of a broadband network operator. The second network transformation unit 182 converts the wired external network signal to generate the first wired network signal and outputs it to the main control circuit 13, and the main control circuit 13 generates the high-speed serial bus communication signal and the original wired communication according to the first wired network signal The signals are output to the wireless network circuit 14 and the wired network circuit 15 respectively, so as to perform wireless network conversion and wired network conversion, so as to meet the needs of users for network connection.

Referring to FIG. 8, in one embodiment, the network interface circuit 12 includes: a bus interface connector J1; wherein, the 36th pin of the bus interface connector J1 and the 38th pin of the bus interface connector J1 are connected to The main control circuit 13 is used for transmitting the mobile network signal to the main control circuit 13 .

In a specific implementation, the bus interface connector J1 can be a Mini PCIe connector, which can transmit mobile network signals to the main control circuit 13 in a bus communication manner. Optionally, the network interface circuit 12 may also transmit control signals such as wake-up and power-on/off.

Optionally, the networking circuit 11 adopts an M2 mobile Internet access module with a model of GLMM18A02. Combined with the remote card supply platform 100, it can automatically and dynamically switch the network operator according to the network quality to access the operation network operator with the best network quality at the location. You don’t need to purchase multiple SIM cards in advance.

Referring to FIG. 9, in one embodiment, the main control circuit 13 includes: a main control chip U1; wherein the data negative signal terminal USB_DM of the main control chip U1 and the data positive signal terminal USB_DP of the main control chip U1 are connected to the network in common In the interface circuit 12, the first power terminal VDD of the main control chip U1 is connected to the first working DC, the second power terminal AVDD of the main control chip U1 is connected to the second working DC, and the ground terminal EPAD of the main control chip U1 is connected to the power ground , the first positive-phase transmitting end TXP1 of the main control chip U1, the first negative-phase transmitting end TXN1 of the main control chip U1, the first positive-phase receiving end RXP1 of the main control chip U1, and the first negative-phase receiving end of the main control chip U1 The terminal RXN1 is commonly connected to the second network transformer unit 182, the second positive-phase transmitting terminal TXP2 of the main control chip U1, the second negative-phase transmitting terminal TXN2 of the main control chip U1, and the second positive-phase receiving terminal of the main control chip U1 RXP2, the second negative-phase receiving terminal RXN2 of the main control chip U1, the third positive-phase transmitting terminal TXP3 of the main control chip U1, the third negative-phase transmitting terminal TXN3 of the main control chip U1, and the third positive-phase transmitting terminal of the main control chip U1 The receiving end RXP3 and the third negative-phase receiving end RXN3 of the main control chip U1 are jointly connected to the first network transformer unit 151, the first positive-phase bus transmitting end PCIE_TX_P of the main control chip U1, and the first negative-phase bus of the main control chip U1 The bus transmitting end PCIE_TX_N, the first positive-phase bus receiving end PCIE_RX_P of the main control chip U1, the first negative-phase bus receiving end PCIE_RX_N of the main control chip U1, the first positive-phase bus output clock end PCIE_CK_OUT_P of the main control chip U1, the main control chip U1 The first negative-phase bus output clock terminal PCIE_CK_OUT_N of the chip U1 and the first output reset terminal PCIE_RST_L_OUT of the main control chip U1 are connected to the wireless network circuit 14 in common.

In the specific implementation, filtering and noise reduction processing is performed on the first working DC power connected to the first power supply terminal VDD of the main control chip U1 through the capacitor C5, and the second power supply terminal AVDD connected to the second power supply terminal AVDD of the main control chip U1 is connected through the capacitor C4 through the capacitor C4. The working DC power is filtered and noise-reduced, so as to realize the power supply with low noise interference to the main control chip U1, and improve the stability and reliability of the main control chip U1. The first positive-phase bus transmitting end PCIE_TX_P of the main control chip U1, the first negative-phase bus transmitting end PCIE_TX_N of the main control chip U1, the first positive-phase bus receiving end PCIE_RX_P of the main control chip U1, and the first negative-phase bus of the main control chip U1. The phase bus receiving end PCIE_RX_N is connected to the wireless network circuit 14 after being connected in series with capacitors C6, C7, C8 and C9 respectively, and performs filtering and noise reduction processing on the bus communication signals through the capacitors C6, C7, C8 and C9. The first positive phase bus output clock terminal PCIE_CK_OUT_P of the main control chip U1 is connected to the first terminal of the resistor R5 and the first terminal of the resistor R4, and the first negative phase bus output clock terminal PCIE_CK_OUT_N of the main control chip U1 is connected to the second terminal of the resistor R5. The terminal is connected to the first terminal of the resistor R6, the second terminal of the resistor R4 and the first terminal of the capacitor C11 are connected to the wireless network circuit 14, and the second terminal of the resistor R6 and the first terminal of the capacitor C10 are connected to the wireless network circuit. 14. The second end of the capacitor C11 and the second end of the capacitor C10 are connected to the power supply ground, and the bus output clock signal is filtered and noise-reduced through the resistor R5, the resistor R4, the capacitor C11, the resistor R6 and the capacitor 10, and then output to the In the wireless network control unit 141 of the wireless network circuit 14 . The first output reset terminal PCIE_RST_L_OUT output bus of the main control chip U1 outputs a reset signal to the wireless network control unit 141 of the wireless network circuit 14 . The high-speed serial bus communication signal includes a bus communication signal, a bus output clock signal and a bus output reset signal. The high-speed serial bus communication signal output by the main control chip U1 is filtered and noise-reduced, and then output to the wireless network control unit 141 of the wireless network circuit 14 for conversion control of the wireless network signal, thereby improving the conversion of mobile network to wireless network. stable reliability.

The data negative signal end USB_DM of the main control chip U1 is connected to the first end of the resistor R2 and the first end of the capacitor C2, the first end of the resistor R3 and the first end of the capacitor C3 are connected to the data positive signal end USB_DP of the main control chip U1 The second end of the resistor R2 and the second end of the resistor R3 are connected to the network interface circuit 12 in common, the second end of the capacitor C2 is connected to the power ground, and the second end of the capacitor C3 is connected to the power ground. The mobile network signal is filtered and noise-reduced through the resistor R2, the capacitor C2, the resistor R3 and the capacitor C3 to filter out the noise interference and electromagnetic interference in the mobile network signal, so that the high-precision, stable and reliable mobile network signal is output to the main control. The circuit 13 performs network conversion processing, and then outputs stable and reliable wireless network signals and wired network signals for users to connect to the network, thereby improving the stability and reliability of the network switching circuit.

Optionally, the wireless network control unit 141 adopts the wireless WIFI dedicated chip QCA9886, and the high-speed serial bus communication signal output by the main control chip U1 is filtered and noise-reduced, and then output to the QCA9886 for wireless network conversion control, which can stably and reliably output the first signal. The wireless enable signal, the second wireless enable signal, the first wireless radio frequency signal and the second wireless radio frequency signal, and then the first radio frequency amplification and coupling unit 142 performs power amplification on the first wireless radio frequency signal according to the first wireless enable signal, The radio frequency coupling and filtering and noise reduction are processed to generate the first sub-wireless communication signal (for example, a 5G WIFI wireless network signal), and the second radio frequency amplification and coupling unit 143 performs power amplification and radio frequency on the second radio frequency signal according to the second wireless enable signal. Coupling to generate a second sub-wireless communication signal (such as 2.4G WIFI wireless network signal), thus forming two-way four-group wireless network (ie, two sets of 5G WIFI wireless network and two sets of 2.4G WIFI wireless network) for users to wirelessly The use of the Internet enhances the signal strength of the wireless network, improves the quality of the wireless network, and improves the user's network experience.

In one of the embodiments, please refer to FIG. 10 . FIG. 10 shows a schematic circuit diagram of the wired network circuit 15 and the wired network circuit 18 . The second network transformer unit 182 includes a first network transformer U01, the first network transformer unit 151 includes a second network transformer U02 and a third network transformer U03; the WAN wired network interface unit 181 includes a WAN wired network interface connector J01 , the first LAN wired network interface unit 152 includes a first LAN wired network interface connector J02, and the second LAN wired network interface unit 153 includes a second LAN wired network interface connector J03. Specifically, the first network transformer U01 converts the wired external network signal (for example, the broadband network signal provided by the broadband network operator) accessed by the WAN wired network interface connector J01 to generate the first wired network signal and output it to the main control circuit The main control chip U1 of 13, the main control chip U1 generates and outputs the high-speed serial bus communication signal and the original wired communication signal according to the first wired network signal. The wireless network control unit 141 in the wireless network circuit 14 performs wireless network conversion control on the high-speed serial bus communication signal, and combines the first radio frequency amplifying and coupling unit 142 and the second radio frequency amplifying and coupling unit 143 to realize the wired external network to be accessed. The signal is converted into two wireless communication signals for the user to use for wireless network connection; the second network transformer U01 and the third network transformer U01 in the first network transformer unit 151 convert the original wired communication signal into the first sub-wired network The communication signal and the communication signal of the second sub-wired network, so as to output two LAN wired networks for the user to connect the wired network. Optionally, the first network transformer U01, the second network transformer U02, and the third network transformer U03 are network transformers whose model is TMSEMI1102NL.

A second aspect of the present application provides a customer premises equipment, the customer premises equipment includes the network switching circuit described in any one of the above.

In the specific implementation, the customer front-end equipment is the CPE equipment. Through the network switching circuit, the corresponding network operator can be dynamically switched according to the signal quality of the mobile network where the equipment is located to dynamically switch to the mobile network with the best network quality. The external broadband network and the mobile network for switching access provide two-way WIFI wireless network and two-way wired network (such as two LAN wired network) for users to connect to the Internet, realize dynamic switching of mobile network, and provide stable and high-quality wired network Network and wireless networks ensure that users can use high-quality networks at any time, and improve users’ network experience; at the same time, CPE equipment broadens the frequency band of wireless networks, making network switching and networking more efficient and convenient when users use CPE equipment, no need to care about the location. Covering the coverage of mobile network operators, there is no need to purchase SIM cards in advance, saving costs.

Those skilled in the art can clearly understand that, for the convenience and conciseness of the description, only the division of the above-mentioned functional units, modules and circuits is used as an example for illustration. Units, modules and circuits are completed, that is, the internal structure of the device is divided into different functional units or modules or circuits to complete all or part of the functions described above. Each functional unit, module, and circuit in the embodiment may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. It can be realized in the form of hardware, and can also be realized in the form of software functional units. In addition, the specific names of the functional units, modules, and circuits are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present application.

In the foregoing embodiments, the description of each embodiment has its own emphasis. For parts that are not described or described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in the application. within the scope of protection.

Claims (10)

1. A network switching circuit is wirelessly connected to a remote card supply platform, characterized in that the network switching circuit comprises:

   The networking circuit is connected to the remote card supply platform, and is configured to detect the mobile network information of the location to generate a mobile network detection signal and send it to the remote card supply platform, and receive the remote card supply platform according to the The mobile network detects the virtual identity signal issued by the signal, and receives the corresponding mobile network signal according to the virtual identity signal, and sends the mobile network signal through USB bus communication;

   a network interface circuit, connected to the networking circuit, configured to receive and transmit the mobile network signal;

   a main control circuit, connected to the network interface circuit, and configured to generate a high-speed serial bus communication signal and an original wired communication signal according to the mobile network signal;

   a wireless network circuit, connected to the main control circuit, and configured to generate a wireless communication signal according to the high-speed serial bus communication signal;

   A wired network circuit, connected to the main control circuit, is configured to generate a wired network communication signal according to the original wired communication signal.
2. The network switching circuit of claim 1, wherein the network switching circuit further comprises:

   The key circuit is connected to the main control circuit, and is configured to generate a key input signal according to a user operation; the key input signal is used to control the main control circuit to reset or power on and off.
3. The network switching circuit of claim 1, wherein the wireless network circuit comprises:

   a wireless network control unit, connected to the main control circuit, and configured to generate a first wireless enable signal, a second wireless enable signal, a first wireless radio frequency signal, and a second wireless radio frequency signal according to the high-speed serial bus communication signal ;

   a first radio frequency amplification and coupling unit, connected to the wireless network control unit, and configured to perform power amplification and radio frequency coupling on the first wireless radio frequency signal according to the first wireless enable signal to generate a first sub-wireless communication signal;

   a second radio frequency amplification and coupling unit, connected to the wireless network control unit, and configured to perform power amplification and radio frequency coupling on the second wireless radio frequency signal according to the second wireless enable signal to generate a second sub-wireless communication signal; Wherein, the wireless communication signal includes the first sub-wireless communication signal and the second sub-wireless communication signal.
4. The network switching circuit of claim 1, wherein the wired network circuit comprises:

   a first network transformer unit, connected to the main control circuit, and configured to generate a first sub-wired network communication signal and a second sub-wired network communication signal according to the original wired communication signal;

   a first LAN wired network interface unit, connected to the first network transformer unit, and configured to transmit the first sub wired network communication signal;

   A second LAN wired network interface unit, connected to the first network transformer unit, and configured to transmit the second sub wired network communication signal; wherein the wired network communication signal includes the first sub wired network communication signal and communicates signals with the second sub-wired network.
5. The network switching circuit of claim 1, wherein the network switching circuit further comprises:

   a wired networking circuit, connected to the main control circuit, configured to access a wired external network signal, and generate a first wired network signal according to the wired external network signal;

   The main control circuit is further configured to generate the high-speed serial bus communication signal and the original wired communication signal according to the first wired network signal.
6. The network switching circuit of claim 5, wherein the wired networking circuit comprises:

   a WAN wired network interface unit, configured to transmit the wired external network signal;

   A second network transformer unit, connected to the main control circuit and the WAN wired network interface unit, is configured to generate the first wired network signal according to the wired external network signal.
7. The network switching circuit according to claim 1, wherein the main control circuit comprises: a main control chip; wherein, the data negative signal terminal of the main control chip and the data positive signal terminal of the main control chip share a common connected to the network interface circuit, the first power supply terminal of the main control chip is connected to the first working DC, the second power terminal of the main control chip is connected to the second working DC, and the ground terminal of the main control chip Connected to the power ground, the first positive-phase transmitting end of the main control chip, the first negative-phase transmitting end of the main control chip, the first positive-phase receiving end of the main control chip, and the The first negative-phase receiving end is commonly connected to the second network transformer unit, the second positive-phase transmitting end of the main control chip, the second negative-phase transmitting end of the main control chip, and the second negative-phase transmitting end of the main control chip. The positive-phase receiving end, the second negative-phase receiving end of the main control chip, the third positive-phase transmitting end of the main control chip, the third negative-phase transmitting end of the main control chip, the The third positive-phase receiving end and the third negative-phase receiving end of the main control chip are connected to the first network transformer unit, the first positive-phase bus transmitting end of the main control chip, the third negative-phase receiving end of the main control chip a negative-phase bus sending end, a first positive-phase bus receiving end of the main control chip, a first negative-phase bus receiving end of the main control chip, a first positive-phase bus output clock end of the main control chip, The first negative-phase bus output clock terminal of the main control chip and the first output reset terminal of the main control chip are commonly connected to the wireless network circuit.
8. The network switching circuit according to claim 3, wherein the wireless network control unit adopts a wireless local area network system chip.
9. The network switching circuit of claim 1, wherein the networking circuit adopts an M2 mobile Internet access module of GLMM18A02.
10. A customer premises equipment, characterized in that the customer premises equipment comprises the network switching circuit according to any one of the preceding claims 1 to 9.