CN-224218390-U - Wireless communication module and wireless communication system

Abstract

The application relates to a wireless communication module and a wireless communication system, wherein the wireless communication module comprises a baseband chip, an M.2 connector and a power management unit, the baseband chip comprises a multiplexing functional module and an interface type selection pin, the multiplexing functional module is used for transmitting a high-speed serial computer expansion bus standard PCIe signal or a serial gigabit media independent interface SGMII signal according to a level state input by the interface type selection pin, the M.2 connector comprises an M.2 interface and a selection circuit, one end of the M.2 interface is connected with the multiplexing functional module, one end of the selection circuit is connected with the interface type selection pin, and a high level or a low level is output to the interface type selection pin through a connection state of the other end of the selection circuit, so that the wireless communication module is enabled to increase the compatibility of the SGMII interface beyond a PCIe interface defined by the original specification, and the compatibility and the product competitiveness of the wireless communication module are improved.

Inventors

• XU XIALIN

Assignees

• 深圳市广和通无线股份有限公司

Dates

Publication Date

20260508

Application Date

20250421

Claims (9)

1. 1. The wireless communication module is characterized by at least comprising a baseband chip, an M.2 connector and a power management unit; The baseband chip comprises a multiplexing functional module and an interface type selection pin, wherein the multiplexing functional module is used for transmitting a high-speed serial computer expansion bus standard PCIe signal or a serial gigabit media independent interface SGMII signal according to a level state input by the interface type selection pin; The M.2connector comprises an M.2 interface and a selection circuit, wherein the M.2 interface is connected with the multiplexing functional module, one end of the selection circuit is connected with the interface type selection pin, and high level or low level is output to the interface type selection pin through the connection state of the other end of the selection circuit; The power management unit is connected with the communication interface power supply end of the baseband chip and is used for supplying power to the communication interface and the communication interface core, wherein the communication interface comprises a PCIe interface and an SGMII interface.
2. 2. The wireless communication module of claim 1, wherein the selection circuit comprises a first resistor and a second resistor; The second end of the first resistor is connected with the interface type selection pin and the first end of the M.2 connector; The second end of the M.2 connector is used for connecting the first end of the second resistor, the second end of the second resistor is grounded, the interface type selection pin inputs high level when the connection state of the second end of the M.2 connector is that the first end of the second resistor is not connected, and the interface type selection pin inputs low level when the connection state of the second end of the M.2 connector is that the first end of the second resistor is connected.
3. 3. The wireless communication module of claim 1, wherein the power management unit comprises a first output port and a second output port, wherein the first output port is connected to a first core input of the baseband chip, the second output port is connected to a second core input of the baseband chip, wherein the output voltages of the first output port and the second output port are different, the first core input is connected to a PCIe core and an SGMII core, and the second core input is connected to the PCIe core and the SGMII core.
4. 4. The wireless communication module of claim 1, wherein the baseband chip further comprises a switch; The multiplexing functional module transmits PCIe signals under the action of the change-over switch when the interface type selection pin inputs high level, and transmits SGMII signals under the action of the change-over switch when the interface type selection pin inputs low level.
5. 5. The wireless communication module of claim 1, wherein the multiplexing functional module comprises nine multiplexing pins.
6. 6. The wireless communication module of claim 5, wherein when the interface type selection pin inputs a high level, the first multiplexing pin connects a negative terminal of a PCIe data transmit differential signal pair; The second multiplexing pin is connected with the positive end of the PCIe data transmission differential signal pair; the third multiplexing pin is connected with the negative end of the PCIe data receiving differential signal pair; The fourth multiplexing pin is connected with the positive end of the PCIe data receiving differential signal pair; The fifth multiplexing pin is connected with a PCIe interface reset signal; The sixth multiplexing pin is connected with a PCIe reference clock request signal; the seventh multiplexing pin is connected with the negative end in the PCIe reference clock differential signal; the eighth multiplexing pin is connected with a PCIe system wake-up signal; the ninth multiplexing pin is connected with the positive end in the PCIe reference clock differential signal.
7. 7. The wireless communication module of claim 5, wherein the first multiplexing pin is connected to a negative terminal of the SGMII transmit data differential signal pair when the interface type select pin inputs a low level; The second multiplexing pin is connected with the positive end of the SGMII transmitting data differential signal pair; The third multiplexing pin is connected with the negative end of the SGMII received data differential signal pair; the fourth multiplexing pin is connected with the positive end of the SGMII received data differential signal pair; the fifth multiplexing pin is connected with an SGMII reset signal; The seventh multiplexing pin is connected with an SGMII management data clock signal; the eighth multiplexing pin is connected with an SGMII interrupt signal; The ninth multiplexing pin is connected to the SGMII management data input output signal.
8. 8. The wireless communication module as set forth in claim 1, further comprising a radio frequency chip, an antenna, and a memory unit.
9. 9. A wireless communication system comprising the wireless communication module of any of claims 1-8.

Description

Wireless communication module and wireless communication system Technical Field The present application relates to the field of communications technologies, and in particular, to a wireless communication module and a wireless communication system. Background The wireless communication module is widely applied to the industry of Internet of things (Internet of Things, IOT for short) such as power grids, internet of vehicles and the like at present. The wireless communication module adopting the m.2 interface is more widely applied to the Mobile Broadband (MBB) market such as personal computers PC, customer premise equipments CPE, and the like because of the relatively uniform and detachable pin definition and structure size. For example, CPE application is implemented by converting cellular signals to WIFI or internet access. The interface signals involved in the type of network interface chip currently popular in the market are high-speed Serial computer expansion bus standard (PERIPHERAL COMPONENTINTERCONNECT EXPRESS, PCIe for short) and Serial Gigabit media independent interface (SGMII for short) MEDIA INDEPENDENT INTERFACE. According to the PCI Express m.2specification protocol, the m.2 interface defines only two high-speed interfaces, namely Universal Serial Bus (USB) and PCIe, and therefore cannot satisfy applications employing the SGMII interface. Disclosure of utility model The application provides a wireless communication module and a wireless communication system, which are used for solving the problem of increasing the compatibility of an SGMII interface besides a PCIe interface defined by an original M.2 specification. In a first aspect, the present application provides a wireless communication module, the wireless communication module at least including a baseband chip, an m.2 connector, and a power management unit; The baseband chip comprises a multiplexing functional module and an interface type selection pin, wherein the multiplexing functional module is used for transmitting a high-speed serial computer expansion bus standard PCIe signal or a serial gigabit media independent interface SGMII signal according to a level state input by the interface type selection pin; The M.2connector comprises an M.2 interface and a selection circuit, wherein the M.2 interface is connected with the multiplexing functional module, one end of the selection circuit is connected with the interface type selection pin, and high level or low level is output to the interface type selection pin through the connection state of the other end of the selection circuit; The power management unit is connected with the communication interface power supply end of the baseband chip and is used for supplying power to the communication interface and the communication interface core, wherein the communication interface comprises a PCIe interface and an SGMII interface. Optionally, the selection circuit includes a first resistor and a second resistor; The second end of the first resistor is connected with the interface type selection pin and the first end of the M.2 connector; The second end of the M.2 connector is used for connecting the first end of the second resistor, the second end of the second resistor is grounded, the interface type selection pin inputs high level when the connection state of the second end of the M.2 connector is that the first end of the second resistor is not connected, and the interface type selection pin inputs low level when the connection state of the second end of the M.2 connector is that the first end of the second resistor is connected. Optionally, the power management unit includes a first output port and a second output port, the first output port is connected to a first core input end of the baseband chip, the second output port is connected to a second core input end of the baseband chip, output voltages of the first output port and the second output port are different, the first core input end is connected to a PCIe core and an SGMII core, and the second core input end is connected to the PCIe core and the SGMII core. Optionally, the baseband chip further includes a switch; The multiplexing functional module transmits PCIe signals under the action of the change-over switch when the interface type selection pin inputs high level, and transmits SGMII signals under the action of the change-over switch when the interface type selection pin inputs low level. Optionally, the multiplexing functional module includes nine multiplexing pins. Optionally, when the interface type selection pin inputs a high level, the first multiplexing pin is connected with a negative terminal of the PCIe data transmission differential signal pair; The second multiplexing pin is connected with the positive end of the PCIe data transmission differential signal pair; the third multiplexing pin is connected with the negative end of the PCIe data receiving differential signal pair; The fourth multiplexing pin is connected