CN219643939U

CN219643939U - Portable CPE device

Info

Publication number: CN219643939U
Application number: CN202321349490.7U
Authority: CN
Inventors: 母林桂
Original assignee: Shenzhen Jieke Digital Co ltd
Current assignee: Shenzhen Jieke Digital Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-09-05
Anticipated expiration: 2033-05-30

Abstract

The utility model relates to the technical field of communication equipment, and particularly discloses a mobile CPE device which is adaptable to various use occasions and stable in signal, comprising a main chip, a 4/5G module, a first DC-DC chip, a Type-C interface, a PD protocol chip, a voltage detection circuit and a power supply switching circuit, wherein the 4/5G module is connected with the main chip and converts a 4/5G signal into a USB3.0 data signal, and the RJ45 input port, the RJ45 output port and the WIFI 2.4/5G signal port are connected with the main chip; the first DC-DC chip is connected with the main chip; the Type-C interface is connected with the first DC-DC chip, the second DC-DC chip and the MOS tube; the PD protocol chip is connected with the Type-C interface and the main chip; the voltage detection circuit is connected with the Type-C input voltage and the main chip and inputs detection voltage; the power supply switching circuit is connected with the Type-C input voltage and the main chip and switches the working mode.

Description

Portable CPE device

Technical Field

The present utility model relates to the technical field of communication devices, and in particular, to a mobile CPE device.

Background

The CPE (Customer Premises Equipment), the customer premise equipment, is a device for receiving and forwarding mobile signals, and also for directly converting broadband signals or mobile signals into Wi-Fi signals. At present, all CPE products on the market need to be connected with an external power supply through a DC socket, and generally can be placed in a fixed place and cannot move in a large range, so that the CPE products are only suitable for being used in indoor places such as families and small offices, and if the CPE products go out or travel, MIFI (Mobile WIFI) products are often required to be used for replacement, but due to insufficient performance of the MIFI, signals are weak, and the receiving of Mobile signals by users is affected to a certain extent.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a mobile CPE device that is adaptable to a variety of use situations and that is stable in signals.

The mobile CPE device comprises a main chip, a 4/5G module, a first DC-DC chip, a Type-C interface, a PD protocol chip, a voltage detection circuit and a power supply switching circuit, wherein the 4/5G module is connected with the main chip and used for converting a 4/5G mobile signal into a USB3.0 data signal, and the RJ45 input port, the RJ45 output port and the WIFI 2.4/5G signal port are connected with the main chip; the Type-C interface is connected with the first DC-DC chip and the power supply switching circuit and is used for accessing an external power supply and a PD protocol; the PD protocol chip is respectively connected and communicated with the Type-C interface and the main chip; the voltage detection circuit is connected with the main chip and the Type-C interface respectively and inputs detection voltage; and the power supply switching circuit is connected with the main chip and the Type-C interface respectively and is used for switching the working mode.

In one embodiment, the voltage detection circuit includes a voltage high-low detection sub-circuit and a voltage input detection sub-circuit.

In one embodiment, the power supply switching circuit includes a second DC-DC chip and a MOS transistor, and level conversion is performed between the second DC-DC chip, the MOS transistor, and the main chip by using a triode.

In one embodiment, the PD protocol chip is model number HUSB238 and the triode is model number 2N3904.

In one embodiment, the mobile CPE device further includes a USB3.0 interface connected to the host chip and the 4/5G module, respectively.

In one embodiment, the mobile CPE device further includes a memory module connected to the main chip, the memory module including DDR3 memory and FLASH memory.

In one embodiment, the mobile CPE device further includes a display screen and a display driver module coupled to the display screen.

In one embodiment, the display driver module is communicatively coupled to the master chip via an SPI bus.

In one embodiment, the mobile CPE device further includes a USB2.0 interface and a crystal oscillator connected to the main chip.

In one embodiment, the mobile CPE device further includes an indication/key interface connected to the main chip, and an LED light and key connected to the indication/key interface.

The mobile CPE device is implemented, the charging interface is designed to be a Type-C interface, and the PD protocol chip, the voltage detection circuit and the power supply switching circuit are arranged to adjust the voltage receivable by the CPE device so as to adapt to the voltage input of 5-12V in a wide range, so that devices such as a charger, an automobile cigar lighter and the like are adopted for supplying power, and the mobile CPE device can be used for transmitting mobile signals in outdoor or in-car scenes and the like while meeting indoor use, and stable transmission and reception of the mobile signals in multiple scenes are met.

Drawings

Fig. 1 is a schematic block diagram of a mobile CPE device according to an embodiment of the present utility model;

fig. 2 is a block diagram of the overall mobile CPE device according to an embodiment of the present utility model;

fig. 3 is a power block diagram of a mobile CPE device in accordance with one embodiment of the present utility model.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1-3, the present utility model discloses a mobile CPE device with stable signals, which is adaptable to various use situations, the mobile CPE device includes a main chip 100 (i.e. the CPU in fig. 2), a 4/5G module 200 connected to the main chip 100 and used for converting a 4/5G mobile signal into a USB3.0 data signal, an RJ45 input port 300, an RJ45 output port 400 and a WIFI 2.4/5G signal port 500 connected to the main chip 100, a WIFI module connected to the WIFI 2.4/5G signal port 500, and a memory module 600 connected to the main chip 100, wherein the memory module 600 includes a DDR3 memory 610 and a FLASH memory 620. Further, the mobile CPE device further includes a USB3.0 interface 210 connected to the main chip 100 and the 4/5G module 200, respectively, and the USB3.0 interface 210 is used for transmitting mobile signals of the 4/5G module 200. In this embodiment, the main chip 100, the DDR3 memory 610, the FLASH memory 620, the 4/5G module 200, the RJ45 input port 300, the RJ45 output port 400, and the WIFI 2.4/5G signal port 500 together form a basic routing system of the CPE device, which can run on the Android, linux and IOS systems. The CPE device includes two network connection paths, one is connected to the RJ45 input port 300 (i.e., RJ45 (wan) port) through a network cable, and is connected to the main chip 100 through a network transformer between the RJ45 input port 300 and the main chip 100 to transmit signals to the main chip 100; the other is that the 4/5G module 200 is connected to the 4/5G base station of the operator through a 4/5G antenna, and the 4/5G module 200 performs communication based on a 4/5G network to complete the functions of wireless receiving, transmitting, baseband signal processing and the like.

Specifically, when receiving a wireless network signal, the 4/5G module 200 receives the 4/5G signal through an antenna, processes the 4/5G signal, converts the 4/5G signal into USB3.0 data (or USB data), and then transmits the USB3.0 data to the main chip 100 through the USB3.0 interface 210; the USB data is routed and forwarded through the inside of the main chip 100, and is output from the RJ45 output port 400 (i.e., RJ45 (lan) port), or the USB data is converted into the ppie data through the main chip, and is transmitted to a terminal device (such as a computer or a mobile phone) through the air interface in the form of a WIFI 2.4/5G signal through the WIFI 2.4/5G signal port 500, so that the terminal device can be connected to the Internet and surf the Internet.

When receiving signals through the cable, the cable network signals enter the main chip 100 (i.e. the CPU) through the RJ45 input port 300 (i.e. the RJ45 (wan) port), are routed and forwarded inside the main chip 100, are output from the RJ45 output port 400 (i.e. the RJ45 (lan) port), or are converted into Pcie data, and are transmitted to the terminal equipment (such as a computer or a mobile phone) through the WIFI 2.4/5G signal port 500 in the form of WIFI 2.4/5G signals through air interface transmission, so that the terminal equipment can be connected to the Internet and surfing the Internet.

It should be further noted that, in this embodiment, the mobile CPE device further includes a display screen 800 and a display driving module 810 connected to the display screen 800. Display driver module 810 is communicatively coupled to main chip 100 via an SPI bus. In this embodiment, the display driving module 810 is a screen driving chip of model ST7789, which is mainly used for driving the TFT display screen 800 to work, where the display screen 800 is used for displaying the quality of 4G/5G signals, WIFI signals, downlink speed, running mode and time, so that we can know the running condition of the CPE device, such as the signal quality and network speed of the CPE, at any time when using outdoors.

Because the traditional CPE devices in the market all adopt external power supply, a 12V/1.5A adapter is usually used and is connected with the power supply through a DC socket, the use of the DC socket limits the CPE devices not to move randomly, and restricts the use situations of the CPE devices, such as the CPE devices not to be used in the open air or in a movable space (such as an automobile car). In this regard, the mobile CPE device of the present embodiment further includes a power supply system 700 connected to the main chip 100, the power supply system 700 including a first DC-DC chip 710 (i.e., DC-DC1 in fig. 3), a Type-C interface 720, a PD protocol chip 730, a voltage detection circuit 740, and a power switching circuit 750; the first DC-DC chip 710 supplies power to the main chip 100, the DDR3 memory, the FLASH memory, the WIFI module, and the display driving module 810, the Type-C interface 720 is connected with the first DC-DC chip 710 and the power switching circuit 750 and is used for accessing an external power source and a PD protocol, the PD protocol chip 730 is connected with and communicates with the Type-C interface 720 and the main chip 100, the voltage detection circuit 740 is connected with and inputs detection voltages to the main chip 100 and the Type-C interface 720, and the power switching circuit 750 is connected with and is used for switching operation modes with the main chip 100 and the Type-C interface 720. In this embodiment, the voltage detection circuit 740 includes a voltage high-low detection sub-circuit and a voltage input detection sub-circuit, that is, the voltage detection circuit 740 is used for detecting voltage input and voltage detection; the power supply switching circuit 750 includes a second DC-DC chip 751 (i.e., DC-DC2 in fig. 3) and a transistor and a MOS transistor 752, and the first DC-DC chip is further configured to supply power to the second DC-DC chip 751 and the MOS transistor 752, where level conversion is performed between the second DC-DC chip 751, the MOS transistor 752 and the main chip 100 by the transistor. Preferably, a first triode 754 is connected between the second DC-DC chip 751 and the main chip 100, and a second triode 753 is connected between the mos transistor 752 and the main chip 100; the PD protocol chip 730, also known as a PD spoofing chip, is a chip that supports PD protocol power and is capable of providing a variety of different power inputs for switching. In this embodiment, the PD protocol chip 730 is model number HUSB238, and the triode 753 is model number 2N3904.

Specifically, in connection with fig. 1-3, in this embodiment, the power supply of the system includes two modes, one is that the power adapter (12V/1.5A) supplies power, and the other is that the external charger (5V/2A) supplies power, and the main chip 100 sets the GPIO0 as the input port and the GPIO1 as the output port. When the power adapter is plugged in, the input voltage is 12V, the first DC-DC chip 710 outputs three voltages of 3.8V, 3.3V and 1.5V and directly works, and outputs the voltages to supply power to the main chip 100, the 4/5G module 200, the storage module 600, the WIFI module 500 and the display driving module 810; the main chip 100 starts to operate, and when a 12V voltage is input, the voltage detection circuit 740 outputs a high level and transmits to the main chip 100 through the GPIO0, and when the main chip 100 detects that the GPIO0 is a high level, the main chip 100 sets the GPIO1 to a low level; when GPIO1 is at a low level, the high level is output in an inverted phase through triode 753N 3904, and MOS tube 752 does not work; GPIO1 outputs high level through triode 754N 3904 in reverse phase, and the 12V-to-5V chip (namely the second DC-DC chip) works. The 5V voltage mainly supplies power to the USB2.0, 4/5G modules and the PA of the WIFI, and the CPE device works normally. Under this condition, when the cigar lighter on the automobile and the common fast-charging power adapter are used for supplying power to the CPE device, the PD protocol chip 730 is arranged in the CPE device, and the PD protocol chip 730 can fix the input voltage at 12V/1.5A.

When the charger is used for supplying power, the input voltage is 5V. The first DC-DC chip 710 outputs three voltages of 3.8V, 3.3V and 1.5V to directly operate, and outputs each voltage to supply power to the main chip 100, the 4/5G module 200, the storage module 600, the WIFI module 500 and the display driving module 810; the main chip 100 starts to operate; when 5V voltage is input, the voltage detection circuit 740 outputs a low level and transmits the low level to the main chip 100 through the GPIO0, when the main chip 100 detects that the GPIO0 is low level, the main chip 100 sets the GPIO1 to high level, when the GPIO1 is high level, the transistor 753 level converts, the MOS transistor 752 operates, the GPIO1 outputs a low level in reverse phase through the transistor 754 2n3904, and the 12V to 5V chip (i.e., the second DC-DC chip) does not operate. 5V is output through MOS tube 752 to supply power to the PAs of USB2.0, 4/5G module and WIFI module 500, and at this time, the CPE device is in a low power consumption mode.

The embodiment can meet the 5-12V wide power supply voltage input by adjusting the power supply mode of the CPE device; therefore, when the user cannot use the external power supply, the charger baby can be used for supplying power to the CPE device; when the vehicle is driven out, a cigar lighter in the vehicle can be used for supplying power to the CPE; in indoor places such as houses, hotels and offices, the power adapter of the device can be used, and the power of the mobile phone and the tablet personal computer can be used for supplying power to the CPE, so that the charging wire can be shared with the mobile phone and the tablet personal computer when the device is out, the power supply difficulty of the CPE device is reduced, and the device is suitable for being used in indoor places and can meet the requirement of outdoor or in-vehicle use.

In one embodiment, the mobile CPE device further includes a USB2.0 interface and a crystal oscillator connected to the main chip 100. The USB2.0 interface is used for externally connecting USB equipment so as to realize the downloading data storage of the CPE device or the upgrading of the machine; the crystal oscillator is used for generating an oscillation frequency to form a system clock of the CPE device. Further, the mobile CPE device further includes an indication/key interface connected to the main chip 100, and an LED lamp and a switch connected to the indication/key interface, where the key is used to switch the function of the CPE device, and the LED lamp is used to display the working state of the CPE device.

The mobile CPE device is implemented by designing the charging interface as the Type-C interface 720, setting the PD protocol chip 730, the voltage detection circuit 740 and the power supply switching circuit 750, and adjusting the voltage receivable by the CPE device to adapt to the voltage input of a wide range of 5-12V so as to supply power by adopting devices such as a charger, an automobile cigar lighter and the like, and can be used for transmitting mobile signals in outdoor or in-car scenes while meeting indoor use, thereby meeting the stable transmission and reception of the mobile signals in multiple scenes.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The mobile CPE device comprises a main chip, a 4/5G module, an RJ45 input port, an RJ45 output port and a WIFI 2.4/5G signal port, wherein the 4/5G module is connected with the main chip and used for converting a 4/5G mobile signal into a USB3.0 data signal, and the RJ45 input port, the RJ45 output port and the WIFI 2.4/5G signal port are connected with the main chip; the Type-C interface is connected with the first DC-DC chip and the power supply switching circuit and is used for accessing an external power supply and a PD protocol; the PD protocol chip is respectively connected and communicated with the Type-C interface and the main chip; the voltage detection circuit is connected with the main chip and the Type-C interface respectively and inputs detection voltage; and the power supply switching circuit is connected with the main chip and the Type-C interface respectively and is used for switching the working mode.

2. The mobile CPE apparatus of claim 1 wherein the voltage detection circuit comprises a voltage high-low detection sub-circuit and a voltage input detection sub-circuit.

3. The mobile CPE apparatus of claim 1 wherein the power switching circuit comprises a second DC-DC chip and a MOS transistor, the second DC-DC chip, the MOS transistor and the main chip being level shifted by a transistor.

4. A mobile CPE device according to claim 3, characterized in that the PD protocol chip is model number busb 238 and the triode is model number 2N3904.

5. The mobile CPE apparatus of claim 1 further comprising USB3.0 interfaces connected to the main chip and the 4/5G module, respectively.

6. The mobile CPE apparatus of claim 1 further comprising a memory module coupled to the main die, the memory module comprising DDR3 memory and FLASH memory.

7. The mobile CPE apparatus of claim 1 further comprising a display screen and a display driver module coupled to the display screen.

8. The mobile CPE device of claim 7 wherein the display driver module is communicatively coupled to the main die via an SPI bus.

9. The mobile CPE apparatus of claim 1 further comprising a USB2.0 interface and a crystal oscillator connected to the main chip.

10. The mobile CPE device of claim 1 further comprising an indication/key interface coupled to the main chip and an LED light and key coupled to the indication/key interface.