5G RedCap industrial communication terminal

Abstract

The utility model relates to the technical field of communication equipment, in particular to a 5G RedCap industrial communication terminal, which comprises a 5G baseband chip, a 5G radio frequency front end circuit and a peripheral circuit, the 5G radio frequency front end circuit and the peripheral circuit are electrically connected with the 5G baseband chip, an SDIO interface of the 5G baseband chip is connected with a WIFI module through an SDIO bus, a UART interface is connected with a GNSS module and a serial port communication module through a UART bus, an RGMII interface is connected with an Ethernet module through an RGMII bus, and the peripheral circuit is electrically connected with the 5G baseband chip. The USIM card interface is connected with an SIM card module. According to the utility model, the hardware design complexity can be effectively reduced, so that the cost of the terminal is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of communication equipment, and in particular to a 5G RedCap industrial communication terminal. Background Art

[0002] 5G industrial communication terminals are widely used in smart factories, smart power, rail transit, smart mines and other application scenarios. They can adapt to various device forms in the above scenarios. At present, 5G industrial communication terminals mainly use 5G communication modules based on 3GPP Release 15 and 3GPP Release 16. The communication speed of these two versions of 5G modules is high and the design is complex. At the same time, the industry usually adopts the hardware solution of processor + 5G module, which requires an additional processor. Overall, the current cost of 5G industrial communication terminals is much higher than that of 4G industrial communication terminals, which is an important reason hindering the large-scale use of 5G in the field of industrial communications. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the above-mentioned background technology and provide a 5G RedCap industrial communication terminal that can effectively reduce the complexity of hardware design and thus reduce the cost of the terminal.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A 5G RedCap industrial communication terminal includes a 5G baseband chip and a 5G radio frequency front-end circuit and a peripheral circuit electrically connected thereto. The SDIO interface of the 5G baseband chip is connected to a WIFI module via an SDIO bus, the UART interface is connected to a GNSS module and a serial communication module via a UART bus, the RGMII interface is connected to an Ethernet module via an RGMII bus, and the USIM card interface is connected to a SIM card module.

[0006] In a further solution, the SIM card module includes a SIM card switching circuit connected to the USIM card interface, and at least two SIM card slots connected to the SIM card switching circuit.

[0007] In a further solution, the IIC interface of the 5G baseband chip is connected to the RTC clock circuit via the IIC bus.

[0008] In a further solution, the IIC interface of the 5G baseband chip is connected to the watchdog circuit via the IIC bus.

[0009] In a further solution, the reset circuit of the watchdog circuit is connected to a voltage anomaly detection circuit, which performs voltage detection on the power module of the 5G baseband chip and sends a reset signal to the reset circuit when a voltage anomaly is detected.

[0010] In a further solution, the 5G baseband chip is connected to a FLASH storage chip via an address bus.

[0011] In a further solution, the Ethernet module has multiple Ethernet interfaces.

[0012] In a further solution, the 5G baseband chip is a 5G baseband chip of 3GPP Release 17 version.

[0013] The beneficial effects of the utility model are:

[0014] 1. By adopting the 5G baseband chip of 3GPP Release 17, the functions of various application scenarios of 5G industrial gateways are realized. While improving the capabilities of 5G native features that the old version does not have, it also reduces the complexity of hardware design, thereby reducing the cost of the solution;

[0015] 2. Some old versions of 5G chips can only expand the network port through PCIE or USB interface, which occupies the USB debugging interface on the one hand, and the conversion solution is costly on the other hand. The utility model adopts RGMII interface and RGMII bus to expand the Ethernet module, realizing multi-network port expansion at a lower cost, meeting the needs of multi-device access in application scenarios, and improving the utilization rate of equipment;

[0016] 3. Utilize the remaining computing power of the 5G baseband chip to carry out secondary development on the 5G baseband chip, expand various functional modules, realize various hardware functions of industrial communication terminals, have industrial communication capabilities, and save the cost of a processor. Compared with traditional solutions containing processors, the cost is reduced by about 40%. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the system structure of an embodiment of the utility model.

[0018] The figure includes: 5G baseband chip 1, 5G RF front-end circuit 2, WIFI module 3, GNSS module 4, serial communication module 5, RS232 chip 5.1, RS485 chip 5.2, Ethernet module 6, Ethernet control chip 6.1, network isolation transformer 6.2, Ethernet interface 6.3, SIM card module 7, SIM card switching circuit 7.1, SIM card slot 7.2, RTC clock circuit 8, watchdog circuit 9, reset circuit 9.1, voltage anomaly detection circuit 10, power module 11, FLASH storage chip 12. DETAILED DESCRIPTION

[0019] In order to enable ordinary technicians in the field to more clearly understand the purpose, technical solutions and advantages of the utility model, the utility model is further explained below in conjunction with the accompanying drawings and embodiments, but the utility model is not limited to the following embodiments.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] like Figure 1 As shown, the 5G RedCap industrial communication terminal (RedCap is the abbreviation of Reduced Capability, a lightweight technology) provided in this embodiment adopts a 5G baseband chip 1 based on the 3GPP Release 17 protocol version. The 5G baseband chip 1 is connected to a 5G RF front-end circuit 2 for accessing the operator's network, and peripheral circuits for ensuring the normal operation of the 5G baseband chip 1. The 5G RF front-end circuit 2 and the peripheral circuits are all existing technologies and will not be introduced in detail here.

[0022] The 5G baseband chip 1 has a built-in 1Gbit Ram, 3 UART interfaces, 1 RGMII interface, 2 IIC interfaces, 1 SPI interface, 1 SDIO interface, 1 USB2.0 interface, 1 PCIE interface, 1 USIM card interface, and multiple GPIO control interfaces.

[0023] In the application scenario, the industrial communication terminal (i.e., industrial gateway) requires WIFI data connection, GNSS positioning, multiple network ports, and multiple industrial interfaces. The SDIO interface of the 5G baseband chip 1 of this embodiment is connected to the WIFI module 3 via the SDIO bus, thereby expanding the WIFI AP and STA communication capabilities. The UART interface of the 5G baseband chip 1 is connected to the GNSS module 4 via the UART bus to expand the GNSS positioning capability. The UART interface is connected to the serial communication module 5 via the UART bus. The serial communication module 5 is provided with an RS232 chip 5.1 and an RS485 chip 5.2 and necessary peripheral circuits to expand the RS232 and RS485 communication capabilities. The 5G baseband chip 1 is connected to a FLASH storage chip 12 via the address bus to expand the storage space.

[0024] Due to the harsh working environment of the industrial gateway, this embodiment also adopts the watchdog reset and voltage detection anomaly detection functions to improve the stability of the product during operation. Specifically: the IIC interface of the 5G baseband chip 1 connects the watchdog circuit 9 and the RTC clock circuit 8 for timing reset through the IIC bus, the watchdog chip of the watchdog circuit 9 is fed by one of the GPIO control interfaces of the 5G baseband chip 1, and the reset circuit 9.1 of the watchdog circuit 9 is connected to the voltage anomaly detection circuit 10, which performs voltage detection on the power module 11 of the 5G baseband chip 1, and sends a reset signal to the reset circuit 9.1 when a voltage anomaly is detected.

[0025] In this embodiment, the USIM card interface of the 5G baseband chip 1 is connected to a SIM card module 7, and the SIM card module 7 is provided with at least one SIM card slot 7.2. After inserting the SIM card into the card slot, the corresponding operator network can be accessed. When the selected 5G baseband chip 1 only supports one USIM card interface, a SIM card switching circuit 7.1 can be set at the front end of two or more SIM card slots 7.2, and different SIM card slots 7.2 are switched to be connected to the USIM card interface through the SIM card switching circuit 7.1, so as to realize the dual-card / multi-card single standby function.

[0026] In this embodiment, the RGMII interface of the 5G baseband chip 1 is connected to the Ethernet module 6 via the RGMII bus. The Ethernet control chip 6.1 of the Ethernet module 6 is connected to the RGMII bus. The back end is separated into multiple Ethernet interfaces 6.3 ( Figure 1 There are 4 Ethernet interfaces in 6.3), which solves the problem of multi-network port device access.

[0027] In this embodiment, the 5G baseband chip 1 and each module, watchdog circuit, voltage anomaly detection circuit, RTC clock circuit, etc. can all adopt existing technologies and can be implemented by purchasing existing electronic devices.

[0028] In this embodiment, the 5G baseband chip 1 is the core component of data processing, responsible for receiving and processing data from each module and sending data to each module. At the same time, it also accesses the operator network through the 5G RF front-end circuit 2 for data transmission and reception.

[0029] The above is only a preferred embodiment of the utility model. For those skilled in the art, the utility model can be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A 5G RedCap industrial communication terminal, comprising a 5G baseband chip (1) and a 5G radio frequency front-end circuit (2) electrically connected thereto, and a peripheral circuit, characterized in that: The SDIO interface of the 5G baseband chip (1) is connected to a WIFI module (3) via an SDIO bus, the UART interface is connected to a GNSS module (4) and a serial communication module (5) via a UART bus, the RGMII interface is connected to an Ethernet module (6) via an RGMII bus, and the USIM card interface is connected to a SIM card module (7).

2. A 5G RedCap industrial communication terminal according to claim 1, characterized in that: The SIM card module (7) comprises a SIM card switching circuit (7.1) connected to a USIM card interface, and at least two SIM card slots (7.2) connected to the SIM card switching circuit (7.1).

3. A 5G RedCap industrial communication terminal according to claim 1, characterized in that: The IIC interface of the 5G baseband chip (1) is connected to the RTC clock circuit (8) via the IIC bus.

4. A 5G RedCap industrial communication terminal according to claim 1, characterized in that: The IIC interface of the 5G baseband chip (1) is connected to the watchdog circuit (9) via the IIC bus.

5. A 5G RedCap industrial communication terminal according to claim 4, characterized in that: The reset circuit (9.1) of the watchdog circuit (9) is connected to a voltage anomaly detection circuit (10), which performs voltage detection on a power module (11) of the 5G baseband chip (1) and sends a reset signal to the reset circuit (9.1) when a voltage anomaly is detected.

6. A 5G RedCap industrial communication terminal according to claim 1, characterized in that: The 5G baseband chip (1) is connected to a FLASH storage chip (12) via an address bus.

7. A 5G RedCap industrial communication terminal according to claim 1, characterized in that: The Ethernet module (6) has a plurality of Ethernet interfaces (6.3).

8. A 5G RedCap industrial communication terminal according to any one of claims 1 to 7, characterized in that: The 5G baseband chip (1) is a 5G baseband chip (1) of 3GPP Release 17 version.

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