Multi-way switch, radio frequency system, and wireless communication device

1. A multi-way switch, comprising:

nine T ports and four P ports, and the nine T ports comprising one first T port coupled with all of the four P ports;

the multi-way switch being configured to be coupled with a radio frequency circuit and an antenna system of a wireless communication device;

the wireless communication device operable in a dual-frequency single-transmit mode; and

the antenna system comprising four antennas corresponding to the four P ports;

wherein the nine T ports further comprise eight second T ports, each of the eight second T ports is coupled with one corresponding P port of the four P ports, and the eight second T ports comprise four second ports supporting reception at a first frequency band and four second ports supporting reception at a second frequency band, wherein the first frequency band does not overlap with the second frequency band;

the four second ports supporting reception at the first frequency band are coupled with different P ports, and the four second ports supporting reception at the second frequency band are coupled with different P ports;

the four P ports are configured to be coupled in one-to-one correspondence with the four antennas; and

the first T port supports transmission at the first frequency band and the second frequency band.

2. The multi-way switch of claim 1 , wherein

the radio frequency circuit comprises a radio frequency transceiver, a transmitter circuit, and eight receiver circuits;

the transmitter circuit comprises a first transmit path supporting transmission at the first frequency band and a second transmit path supporting transmission at the second frequency band and coupled with the first transmit path supporting transmission at the first frequency band; and

the eight receiver circuits comprise four receiver circuits supporting signal processing at the first frequency band and four receiver circuits supporting signal processing at the second frequency band.

3. The multi-way switch of claim 2 , wherein the transmitter circuit and the eight receiver circuits are integrated in one independent circuit module.

4. The multi-way switch of claim 2 , wherein

the transmitter circuit and the eight receiver circuits are integrated in two independent circuit modules; and

the two independent circuit modules comprise a first independent circuit module and a second independent circuit module, the first independent circuit module comprises at least the transmitter circuit, and the second independent circuit module comprises at least two of the eight receiver circuits.

5. The multi-way switch of claim 2 , wherein

the transmitter circuit and the eight receiver circuits are integrated in three independent circuit modules;

the three independent circuit modules comprise a first independent circuit module, a second independent circuit module, and a third independent circuit module; and

the first independent circuit module comprises at least transmitter circuit, the second independent circuit module comprises at least two of the eight receiver circuits, and the third independent circuit module comprises at least two of the eight receiver circuits.

6. The multi-way switch of claim 2 , wherein

the transmitter circuit and the eight receiver circuits are integrated in four independent circuit modules;

the four independent circuit modules comprise a first independent circuit module, a second independent circuit module, a third independent circuit module, and a fourth independent circuit module; and

the first independent circuit module comprises at least transmitter circuit, the second independent circuit module comprises at least two of the eight receiver circuits, the third independent circuit module comprises at least two of the eight receiver circuits, and the fourth independent circuit module comprises at least two of the eight receiver circuits.

7. The multi-way switch of claim 2 , wherein

the transmitter circuit and the eight receiver circuits are integrated in five independent circuit modules;

the five independent circuit modules comprise a first independent circuit module, a second independent circuit module, a third independent circuit module, a fourth independent circuit module, and a fifth independent circuit module; and

the first independent circuit module comprises the transmitter circuit, the second independent circuit module, the third independent circuit module, the fourth independent circuit module, and the fifth independent circuit module each comprise two of the eight receiver circuits.

8. The multi-way switch of claim 2 , wherein

the transmitter circuit comprises a first power amplifier operable at the first frequency band, a second power amplifier operable at the second frequency band, a first filter allowing the first frequency band to pass through, a second filter allowing the second frequency band to pass through, a coupler, and a selector switch;

the first power amplifier has an input port coupled with a corresponding first transmit port of the radio frequency transceiver and an output port coupled with an input port of the first filter;

the second power amplifier has an input port coupled with a corresponding second transmit port of the radio frequency transceiver and an output port coupled with an input port of the second filter;

the coupler has a first input port coupled with an output port of the first filter, a second input port coupled with an output port of the second filter, a first output port coupled with a first fixed port of the selector switch, and a second output port coupled with a second fixed port of the selector switch; and

the selector switch has a selector port configured to be coupled with the first T port.

9. The multi-way switch of claim 2 , wherein

the receiver circuit supporting signal processing at the first frequency band comprises a first low noise amplifier operable at the first frequency band and a first filter allowing the first frequency band to pass through;

the first filter has an input port configured to be coupled with the one corresponding T port of the four second T ports supporting reception at the first frequency band and an output port coupled with an input port of the first low noise amplifier;

the first low noise amplifier has an output port coupled with a corresponding receive port of the radio frequency transceiver supporting reception at the first frequency band;

the receiver circuit supporting signal processing at the second frequency band comprises a second low noise amplifier operable at the second frequency band and a second filter allowing the second frequency band to pass through;

the second filter has an input port configured to be coupled with the one corresponding T port of the four second T ports supporting reception at the second frequency band and an output port coupled with an input port of the second low noise amplifier; and

the second low noise amplifier has an output port coupled with a corresponding receive port of the radio frequency transceiver supporting reception at the second frequency band.

10. The multi-way switch of claim 1 , wherein the multi-way switch is configured to be coupled with the radio frequency circuit and the antenna system of the wireless communication device to implement a preset function of the wireless communication device, and the preset function is a function of transmitting a sounding reference signal (SRS) through the four antennas in turn.

11. The multi-way switch of claim 1 , wherein

the four antennas comprise a first antenna, a second antenna, a third antenna, and a fourth antenna; and

the first antenna, the second antenna, the third antenna, and the fourth antenna are antennas operable at a fifth generation new radio (5G NR) frequency band.

12. The multi-way switch of claim 1 , wherein

the four antennas comprise a first antenna, a second antenna, a third antenna, and a fourth antenna;

the first antenna and the fourth antenna are antennas operable at a long term evolution (LTE) frequency band and a 5G NR frequency band; and

the second antenna and the third antenna are antennas only operable at the 5G NR frequency band.

13. The multi-way switch of claim 12 , wherein the antenna system further comprises a first combiner and a second combiner, wherein

the first combiner has a first port coupled with the first antenna, a second port configured to be coupled with a first receive path in LTE 4×4 multiple-input multiple-output (MIMO) configuration of the wireless communication device, and a third port configured to be coupled with a corresponding P port of the multi-way switch; and

the second combiner has a first port coupled with the fourth antenna, a second port configured to be coupled with a second receive path in the LTE 4×4 MIMO configuration of the wireless communication device, and a third port configured to be coupled with a corresponding P port of the multi-way switch.

14. The multi-way switch of claim 12 , wherein the antenna system further comprises a first single-pole double-throw (SPDT) switch and a second SPDT switch, wherein

the first SPDT switch has a first port coupled with the first antenna, a second port configured to be coupled with a first receive path in LTE 4×4 multiple-input multiple-output (MIMO) configuration of the wireless communication device, and a third port configured to be coupled with a corresponding P port of the multi-way switch; and

the second SPDT switch has a first port coupled with the fourth antenna, a second port configured to be coupled with a second receive path in the LTE 4×4 MIMO configuration of the wireless communication device, and a third port configured to be coupled with a corresponding P port of the multi-way switch.

15. A radio frequency system, comprising an antenna system, a radio frequency circuit, and a multi-way switch coupled with the radio frequency circuit and the antenna system of a wireless communication device;

the multi-way switch comprising nine T ports and four P ports, and the nine T ports comprising one first T port and eight second T ports, the first T port being coupled with all of the four P ports and each second T port being coupled with one corresponding P port of the four P ports;

the wireless communication device operable in a dual-frequency single-transmit mode;

the antenna system comprising four antennas corresponding to the four P ports; and

the multi-way switch being configured to implement a preset function of transmitting a sounding reference signal (SRS) through the four antennas in turn;

wherein the nine T ports further comprise eight second T ports, each of the eight second T ports is coupled with one corresponding P port of the four P ports, and the eight second T ports comprise four second ports supporting reception at a first frequency band and four second ports supporting reception at a second frequency band, wherein the first frequency band does not overlap with the second frequency band;

the four second ports supporting reception at the first frequency band are coupled with different P ports, and the four second ports supporting reception at the second frequency band are coupled with different P ports;

the four P ports are configured to be coupled in one-to-one correspondence with the four antennas; and

the first T port supports transmission at the first frequency band and the second frequency band.

16. The radio frequency system of claim 15 , wherein

the radio frequency circuit comprises a radio frequency transceiver, a transmitter circuit, and eight receiver circuits;

the transmitter circuit comprises a first transmit path supporting transmission at the first frequency band and a second transmit path supporting transmission at the second frequency band and coupled with the first transmit path supporting transmission at the first frequency band; and

the eight receiver circuits comprise four receiver circuits supporting signal processing at the first frequency band and four receiver circuits supporting signal processing at the second frequency band.

17. A wireless communication device, comprising an antenna system, a radio frequency transmitter, a radio frequency circuit coupled with the radio frequency transmitter, and a multi-way switch coupled with the radio frequency circuit and the antenna system;

the multi-way switch comprising nine T ports and four P ports, and the nine T ports comprising one first T port coupled with all of the four P ports;

the wireless communication device operable in a dual-frequency single-transmit mode;

the antenna system comprising four antennas corresponding to the four P ports; and

the multi-way switch being configured to implement a preset function of transmitting a sounding reference signal (SRS) through the four antennas in turn;

wherein the nine T ports further comprise eight second T ports, each of the eight second T ports is coupled with one corresponding P port of the four P ports, and the eight second T ports comprise four second ports supporting reception at a first frequency band and four second ports supporting reception at a second frequency band, wherein the first frequency band does not overlap with the second frequency band;

the four second ports supporting reception at the first frequency band are coupled with different P ports, and the four second ports supporting reception at the second frequency band are coupled with different P ports;

the four P ports are configured to be coupled in one-to-one correspondence with the four antennas; and

the first T port supports transmission at the first frequency band and the second frequency band.