CN108964675A - Multi-way selector switch and related products - Google Patents

Abstract

The embodiment of the application discloses a multi-path selection switch and a related product, which are applied to electronic equipment, wherein the electronic equipment comprises an antenna system and a radio frequency circuit, the antenna system comprises 4 antennas, the multi-path selection switch comprises n T ports and 4P ports, the n T ports comprise m first T ports and n-m second T ports, the electronic equipment supports a single-emitting mode, each first T port is fully connected with 4P ports, each second T port is connected with 2P ports in the 4P ports, the P ports connected with the second T ports supporting the signal receiving function of the same frequency band cover the 4P ports, and the P ports connected with each T port in the 4T ports in a signal receiving state are different; the multi-path selection switch is used for connecting the radio frequency circuit and the antenna system to realize the preset function of the electronic equipment in the frequency division multiplexing FDD system. The embodiment of the application is beneficial to improving the radio frequency index performance and functionality of the electronic equipment.

Description

Multi-way selector switch and related products

technical field

This application relates to the technical field of mobile terminals, in particular to a multi-way selection switch and related products.

Background technique

With the popularization and application of electronic devices such as smart phones, more and more applications can be supported by smart phones, and the functions are becoming more and more powerful. . Electronic equipment in the fourth-generation 4G mobile communication system generally adopts a single-antenna or dual-antenna radio frequency system architecture. Currently, the fifth-generation 5G mobile communication system new air interface NR system proposes electronic equipment that supports a 4-antenna radio frequency system architecture.

Contents of the invention

Embodiments of the present application provide a multiplexer and related products, in order to improve the index performance and functionality of the radio frequency of electronic equipment.

In the first aspect, the embodiment of the present application provides a multi-way selection switch, which is applied to electronic equipment, and the electronic equipment includes an antenna system and a radio frequency circuit, the antenna system includes 4 antennas, and the multi-way selection switch includes n T ports and 4 P ports, the n T ports include m first T ports and n-m second T ports, the electronic device supports single-shot mode, and each first T port is fully connected to the 4 P ports port, each second T port is connected to 2 P ports in the 4 P ports, and the P ports connected to multiple second T ports supporting the signal receiving function of the same frequency band cover the 4 P ports, and The P ports connected to each of the four T ports in the signal receiving state are different from each other, m is equal to 1 or 2 or 4, and n is an integer greater than or equal to 4;

The multiplex switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the electronic device in the frequency division multiplexing FDD system, and the preset function includes a first function and a second function , the first function is to support the function of sending 4-port SRS by rotating the sounding reference signal SRS among the transmitting antennas, and the second function is to support the function of receiving data by the 4 antennas at the same time.

In the second aspect, the embodiment of the present application provides a function control method, which is applied to electronic equipment, and the electronic equipment includes an antenna system, a radio frequency circuit, and a multiplexing switch, and the multiplexing switch includes n T ports and 4 P ports, the n T ports include m first T ports and n-m second T ports, the electronic device supports single-shot mode, each first T port is fully connected to the four P ports, each The two T ports are connected to 2 P ports in the 4 P ports, and the P ports connected to multiple second T ports that support the signal receiving function of the same frequency band cover the 4 P ports, and are in the signal receiving state The P ports connected to each T port in the 4 T ports are different from each other, m is equal to 1 or 2 or 4, and n is an integer greater than or equal to 4; the method includes:

The electronic device determines to execute a preset function, and the preset function includes a first function and a second function, and the first function is a function of supporting transmission of a sounding reference signal SRS between transmitting antennas and sending a 4-port SRS, The second function is the function of supporting the four antennas to receive data at the same time;

During the process of enabling the first function, the electronic device adjusts the matching between the 4 T ports currently occupied by the second function and the 4 P ports according to the P ports currently occupied by the first function state.

In a third aspect, an embodiment of the present application provides a radio frequency system, including an antenna system, a radio frequency circuit, and the multiplexing switch according to any one of the first aspect;

The multiplex switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the electronic device in the frequency division multiplexing FDD system, and the preset function includes a first function and a second function , the first function is to support the function of sending 4-port SRS by rotating the sounding reference signal SRS among the transmitting antennas, and the second function is to support the function of receiving data by the 4 antennas at the same time.

In a fourth aspect, an embodiment of the present application provides a wireless communication device, including an antenna system, a radio frequency circuit, and the multiplexing switch according to any one of the first aspect;

The multiplex switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the electronic device in the frequency division multiplexing FDD system, and the preset function includes a first function and a second function , the first function is to support the function of sending 4-port SRS by rotating the sounding reference signal SRS among the transmitting antennas, and the second function is to support the function of receiving data by the 4 antennas at the same time;

The wireless communication device includes at least any one of the following: electronic equipment and a base station.

It can be seen that in the embodiment of the present application, the electronic device includes an antenna system, a radio frequency circuit, and a multiplexing switch, the antenna system specifically includes 4 antennas, the multiplexing switch includes n T ports and 4 P ports, and the A multi-way selector switch is connected to the radio frequency circuit and the antenna system, since the second T port of the multi-way selector switch only needs to be connected to two P ports to realize the preset function in the FDD system, compared to all T ports For a fully connected switch, the number of switches can be effectively reduced, thereby reducing the insertion loss of the radio frequency link switch, improving the performance of the radio frequency index of the electronic device, and compared with the second T port that is only connected to a single P port, it can support FDD The preset function under the standard expands the functionality of the electronic device.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

Fig. 2 is a schematic structural diagram of a 4P4T fully connected switch provided by an embodiment of the present application;

Fig. 3 is a schematic structural diagram of a 4P4T simplified switch provided by an embodiment of the present application;

FIG. 4A is an example structure of a transmitting and receiving signal processing circuit and a receiving signal processing circuit provided by an embodiment of the present application;

FIG. 4B is an example structure of a multi-channel selector switch under n=4, m=1 and single-frequency single-shot mode provided by the embodiment of the present application;

FIG. 5A is an example structure of a transceiving signal integrated circuit and a receiving signal processing circuit provided by an embodiment of the present application;

FIG. 5B is an example structure of a multiplexer switch under n=4, m=1 and dual-frequency single-shot mode provided by the embodiment of the present application;

FIG. 5C is an example structure of a multiplexer switch under n=5, m=1 and dual-frequency single-shot mode provided by the embodiment of the present application;

FIG. 5D is an example structure of a multiplexer switch under n=6, m=1 and dual-frequency single-shot mode provided by the embodiment of the present application;

FIG. 5E is an example structure of a multiplexer switch under n=7, m=1 and dual-frequency single-shot mode provided by the embodiment of the present application;

Fig. 6A is an example structure of another radio frequency circuit provided by the embodiment of the present application;

FIG. 6B is an example structure of a multiplexer switch under n=5, m=2 and dual-frequency single-shot mode provided by the embodiment of the present application;

FIG. 6C is an example structure of a multiplexer switch under n=6, m=2 and dual-frequency single-shot mode provided by the embodiment of the present application;

FIG. 6D is an example structure of a multiplexer switch under n=7, m=2 and dual-frequency single-shot mode provided by the embodiment of the present application;

FIG. 6E is an example structure of a multiplexer switch under n=8, m=2 and dual-frequency single-shot mode provided by the embodiment of the present application;

FIG. 7 is an example structure of an antenna system provided by an embodiment of the present application;

FIG. 8 is an example structure of another antenna system provided by an embodiment of the present application;

FIG. 9 is a schematic flowchart of a function control method of an electronic device provided in an embodiment of the present application;

FIG. 10 is an example structure of a radio frequency system provided by an embodiment of the present application;

Fig. 11 is an example structure of a wireless communication device provided by an embodiment of the present application;

Fig. 12 is a schematic diagram of a wireless charging receiver that multiplexes the antenna of a wireless communication device provided by an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a circular array antenna composed of four antennas provided by an embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or devices.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

The electronic devices involved in the embodiments of this application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems in the 5G NR system, as well as various forms of User equipment (User Equipment, UE), mobile station (Mobile Station, MS), terminal device (terminal device), customer contract equipment (Customer Premise Equipment, CPE) or portable broadband wireless device (Mobile Wifi, MIFI), etc. For convenience of description, the devices mentioned above are collectively referred to as electronic devices.

At present, the SRS switching4 antenna transmission function of mobile phones is a mandatory option of China Mobile Communications Group CMCC in the "China Mobile 5G Scale Test Technology White Paper_Terminal", and it is optional in the 3rd Generation Partnership Project 3GPP. Its main purpose is In order for the base station to measure the uplink signals of the 4 antennas of the mobile phone, and then confirm the quality and parameters of the 4-channel channel, according to the channel reciprocity, the beamforming of the multiple-input multiple-output Massive MIMO antenna array for the downlink is performed according to the channel reciprocity, and finally the downlink 4x4MIMO Get the best data transfer performance.

In order to meet the requirements of simultaneous operation of 4-antenna SRS switching transmission and downlink 4X4MIMO functions in the FDD NR system and/or FDD LTE system, the radio frequency architecture with the simplified 4PnT antenna switch as the core proposed by the embodiment of this application, and 3P3T/DPDT Compared with multi-channel small switch switching schemes, the number of series switches in each path can be reduced (all or part of the switches are integrated into 4PnT switches), thereby reducing link loss and optimizing the overall transmission and reception performance of the terminal. The following describes the embodiments of the present application in detail.

Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of a multiplex switch 10 provided by an embodiment of the present application. The multiplex switch is applied to an electronic device 100, and the electronic device 100 includes an antenna system 20 and a radio frequency circuit 30. The antenna system 20 includes 4 antennas, the multiplex switch 10 includes n T ports and 4 P ports, the n T ports include m first T ports and n-m second T ports, the The electronic device supports single-shot mode, each first T port is fully connected to the 4 P ports, each second T port is connected to 2 P ports in the 4 P ports, and supports the signal receiving function of the same frequency band The P ports connected to the multiple second T ports cover the four P ports, and the P ports connected to each of the four T ports in the signal receiving state are different from each other, and m is equal to 1 or 2 or 4, n is an integer greater than or equal to 4;

The multiplexer 10 is used to connect the radio frequency circuit 30 and the antenna system 20 to realize the preset function of the electronic device 100 in the frequency division multiplexing FDD system, and the preset function includes the first function And the second function, the first function is to support the function of sending 4-port SRS by rotating the sounding reference signal SRS among the transmitting antennas, and the second function is to support the function of receiving data by the 4 antennas at the same time.

Wherein, the support for transmitting the SRS between transmitting antennas in rotation through the SRS, and the function of transmitting the 4-port SRS refers to the process in which the electronic device interacts with the base station through a rotation training mechanism to determine the channel quality corresponding to each antenna. The electronic device also includes a radio frequency transceiver, which is connected to the radio frequency circuit, and forms a radio frequency system of the electronic device together with the radio frequency circuit, the multiplex switch and the antenna system. When the electronic device is in the downlink 4*4 multiple-input multiple-output MIMO working mode, there is a one-to-one correspondence between T ports and P ports in the four downlink paths of the same frequency band. From the design principle, the four T ports supporting the receiving function in the same frequency band must be connected to the four P ports respectively, so as to ensure that the downlink four-way receiving function can be realized.

Wherein, the full English name of the P port in the present application is Port (polarization) port, the appellation used for the port connecting the antenna in the multiplex switch in the present application, and the full English name of the T port is Throw (throwing, throwing), in the present application The name used for the port connected to the radio frequency circuit in the multi-way switch, such as 4P4T switch.

Wherein, since only one of the n T ports is fully connected to the four P ports, each of the second T ports is only connected to two antennas for receiving. The way that each T port is fully connected to 4 P ports can reduce the number/volume/cost of built-in FETs in the 4PnT switch. Compared with the most simplified state where each port in the second T port is only connected to a single P port, in terms of function Expand support for the synchronization of SRS functions under the FDD system and downlink 4X4 MIMO functions, thereby improving applicability. This part is described in detail below.

For example, assuming that n=4, the multiplex switch is composed of field effect transistors, if each T port in the 4 T ports is fully connected to 4 P ports, then the multiplex switch as shown in Figure 2 An example structure diagram of a switch, the number of field effect transistors of the multiplex switch is 4+4*4*3+4=56; if only one T port of the four T ports is fully connected to the four P ports, Each of the remaining T ports is connected to 2 P ports, then the example structure diagram of the multi-way selection switch as shown in Figure 3, the number of field effect transistors of the multi-way selection switch is 4+(1*4+(4-1 )*2)*3+4=38.

For another example, assuming that n=5, the multiplex switch is composed of field effect transistors. If each of the five T ports is fully connected to four P ports, the field effect of the multiplex switch The number of tubes is 5+5*4*3+4=69; if only 1 T port among the 5 T ports is fully connected to 4 P ports, and each of the other T ports is connected to 2 P ports, then the number of The number of field effect transistors of the channel selection switch is 5+(1*4+(5-1)*2)*3+4=45.

It can be seen that by limiting the number of T ports that are fully connected to the four P ports among the T ports, the number of switches in the radio frequency system of the electronic device can be effectively reduced. That is to say, the number of the fully connected T ports has a great influence on the performance of the radio frequency system.

It can be seen that in the example of this application, the electronic equipment includes an antenna system, a radio frequency circuit, and a multiplexing switch, the antenna system specifically includes 4 antennas, the multiplexing switch includes n T ports and 4 P ports, and the multiplexing The switch connects the radio frequency circuit and the antenna system. Since the second T port of the multi-way selector switch only needs to be connected to two P ports to realize the preset function in the FDD system, compared with the fully connected T port As far as the switch is concerned, the number of switches can be effectively reduced, thereby reducing the insertion loss of the radio frequency link switch, improving the index performance of the radio frequency of the electronic device, and compared with the second T port that only connects to a single P port, it can support the FDD system. The preset function extends the functionality of the electronic device.

In a possible example, n is less than or equal to 10; each of the four P ports is connected to a corresponding antenna; each of the four P ports is connected to a corresponding antenna; the first The T port supports a signal transceiving function, and the second T port only supports a signal receiving function.

Among them, since the electronic device supports single-transmission mode, in the fifth-generation mobile communication new air interface 5G NR system, the electronic device supports at most dual-frequency single uplink UL2*2MIMO downlink DL4*4MIMO, that is, logically includes There are 8 signal receiving channels and 2 signal transmitting channels, so there are at most 10 T ports, so the value of n is less than or equal to 10.

Wherein, the supporting transceiver function refers to supporting a signal receiving function and a signal transmitting function.

It can be seen that in this example, since the multiplex switch is specifically composed of m first T-ports and n-m second T-ports, the multiplex switch reduces the number of switches compared to the form in which all T-ports are fully connected to P-ports, It can reduce the number of switches in the radio frequency system of electronic equipment and reduce path loss, thereby increasing the transmission power and receiving sensitivity, improving the data transmission rate in 5G NR, improving the uplink and downlink coverage of mobile phones, and reducing power consumption and cost.

In a possible example, the single-shot mode includes a single-frequency single-shot mode and a dual-frequency single-shot mode.

Among them, the single-frequency single-transmission mode refers to the working mode in which the maximum capability of the electronic device can support a single-frequency band, UL single transmission path or DL4 reception path, and the dual-frequency single-transmission mode refers to the maximum capability of the electronic device that can support dual-frequency bands, UL single transmission path, etc. The working mode of the transmit path or the DL4 receive path.

In a possible example, the multi-way switch includes n first switch transistors, (m*4+(n-m)*2)*3 second switch transistors, and 4 third switch transistors, and the first One switch tube corresponds to the T port, the third switch tube corresponds to the P port, and every three second switch tubes are connected in series to form a switch subunit between the T port and the P port, and the The two second switch tubes at both ends of the switch subunit are respectively connected to one T port and one P port, the second switch tube in the middle of the switch subunit is grounded, each first switch tube, each of the first switch tubes The gates of the two switch tubes and each of the third switch tubes are connected to the switch control chip.

In the specific implementation, since the parasitic parameters have too much influence on the performance of other conducting ports in the multi-channel selection switch if there is no grounding when the switch subunit is disconnected, the switch subunit is set to 3 switch tubes here, among which 3 The two switch tubes can be connected to a common source. When disconnected, the two switch tubes on both sides are disconnected, and the middle switch tube is grounded.

Among them, the concepts of the connection between the T port and the P port in the multi-way selection switch and the full connection described in the embodiment of the application all refer to the connection between the T port in the multi-way selection switch and the P port through the switch subunit. state. The first, second, and third switch tubes may be metal oxide semiconductor MOS tubes, etc., and the electronic device may be connected to the gate of each MOS tube in the first, second, and third switch tubes through the port of the switch control chip, and the switch The control chip can adopt a mobile industry processor interface MIPI interface, and the electronic device controls the signal of the drive port of the switch control chip to control the connection status between any T port and P port.

It can be seen that in this example, since the switch subunit of the multi-way selector switch includes three second switch tubes, and the second switch tube in the middle is grounded, it is possible to avoid the parasitic parameters of the current switch tube from affecting the performance of other conduction ports in the off state. influence, improve the stability of switch control.

In a possible example, the single-shot mode is a single-frequency single-shot mode, m=1; the radio frequency circuit of the electronic device logically includes 1 transmission signal processing circuit and 4 reception signal processing circuits; The transmitting signal processing circuit and the 1 receiving signal processing circuit are connected in parallel through a duplexer to form a transmitting and receiving signal processing circuit to form a transmitting and receiving signal processing circuit, and the duplexer is used to combine transmitting signals and receiving signals in the same frequency band to realize the The equipment transmits and receives simultaneously on different frequency points under the FDD system;

The radio frequency circuit is physically composed of at least one independent circuit module;

The signal transceiving port of the at least one independent circuit module is used to connect to the first T port, and the signal receiving port of the at least one independent circuit module is used to connect to the second T port.

Wherein, the signal transceiving port is a port of the transmitting and receiving signal processing circuit close to the multiplexer switch, and the signal receiving port is a port of the receiving signal processing circuit close to the multiplexer switch.

It can be seen that in this example, since the radio frequency processing circuit can form a transmitting and receiving signal processing circuit through a duplexer in parallel with a transmitting signal processing circuit and a receiving signal processing circuit, thereby combining transmitting signals and receiving signals in the same frequency band, realizing the electronic The equipment transmits and receives simultaneously at different frequency points under the FDD system, thereby expanding the functionality of the electronic equipment.

In this possible example, as shown in FIG. 4A, the transceiver signal processing circuit includes a power amplifier PA, a low noise amplifier LNA, a duplexer, and a power coupler coupler, and the radio frequency transceiver is connected to the input port of the PA. and the output port of the LNA, the output port of the PA and the input port of the LNA are connected to the duplexer, the duplexer is connected to the coupler, and the coupler is connected to the first T port;

The receiving signal processing circuit includes a low noise amplifier LNA and a filter filter, the radio frequency transceiver is connected to the output port of the LNA, the input port of the LNA is connected to the filter, and the filter is connected to the second T port .

It can be seen that in this example, both the transmitting and receiving signal processing circuit and the receiving signal processing circuit support their corresponding functions in a relatively simplified manner, which is conducive to modularization and cost reduction, and improves the configuration efficiency of the radio frequency system in electronic equipment.

In this possible example, n=4, the at least one independent circuit module includes k independent circuit modules, k=1 or 2 or 3 or 4.

Wherein, as shown in FIG. 4B, in the case of single-frequency single-shot, n=4, m=1, the number of switching tubes of the multiplexer switch is 4+(1*4+(4-1)*2) *3+4=38, Nx indicates the frequency band supported by electronic equipment, such as n77 (3.3-4.2GHz), n78 (3.3-3.8GHz), n79 (4.4GHz-4.99GHz) in the 5G NR system, etc., TRX indicates The port that supports the function of signal transmission and reception, TX indicates the port that supports the function of signal transmission, and RX indicates the port that supports the function of signal reception. The structure shown in this drawing is only an example, and the structure of the multi-channel selection switch can also be in other forms. Here Not uniquely limited.

Wherein, when k=1, the sending and receiving signal processing circuit and the 3 receiving signal processing circuits are arranged in the same independent circuit module;

When k=2, the transceiver signal processing circuit and the 3-way received signal processing circuit are arranged in 2 independent circuit modules, such as the first independent circuit module is provided with the transceiver signal processing circuit, and the second independent circuit module is provided with the The receiving signal processing circuit and the like described in the 3rd way are not uniquely limited here;

When k=3, the transceiver signal processing circuit and the 3-way received signal processing circuit are arranged in 3 independent circuit modules, such as the first independent circuit module is provided with the transceiver signal processing circuit, and the second independent circuit module is provided with 2 One-way receiving signal processing circuit, the third independent circuit module is provided with one-way receiving signal processing circuit, which is not uniquely limited here;

When k=4, the sending and receiving signal processing circuit and the 3 receiving signal processing circuits are arranged in 4 independent circuit modules.

It can be seen that in this example, the physical form of the radio frequency circuit adapted to the 4P4T multiplexer can be various, and can be flexibly configured according to needs.

In a possible example, the single-shot mode is a dual-frequency single-shot mode, m=1; the radio frequency circuit of the electronic device logically includes 2 transmission signal processing circuits and 8 reception signal processing circuits; each A transmitting signal processing circuit and a receiving signal processing circuit supporting the same frequency band are connected in parallel through a duplexer to form a transmitting and receiving signal processing circuit, and two transmitting and receiving signal processing circuits in different frequency bands are connected in parallel through a switch to form a transmitting and receiving signal integrated circuit. The device is used to combine the transmitting signal and receiving signal of the same frequency band, so as to realize the simultaneous operation of the electronic device transmitting and receiving at different frequency points under the FDD system;

The radio frequency circuit is physically composed of at least one independent circuit module;

The signal transceiving port of the at least one independent circuit module is used to connect to the first T port, and the signal receiving port of the at least one independent circuit module is used to connect to the second T port.

Wherein, the signal transceiving port is a port of the transceiving signal integrated circuit close to the multiplex switch, and the signal receiving port is a port of the received signal processing circuit close to the multiple select switch.

It can be seen that in this example, since the radio frequency processing circuit can form a transmitting and receiving signal processing circuit through a duplexer in parallel with a transmitting signal processing circuit and a receiving signal processing circuit, thereby combining transmitting signals and receiving signals in the same frequency band, realizing the electronic The equipment transmits and receives simultaneously at different frequency points under the FDD system, and the 2-way transceiver signal processing circuits corresponding to the two frequency bands can realize frequency band selection by switching switches, which is beneficial to expand the functionality of electronic equipment.

In this possible example, as shown in FIG. 5A, the transceiver signal integrated circuit includes a first power amplifier PA, a first low noise amplifier LNA, a first duplexer, a second power amplifier PA, a second low noise amplifier LNA, a second duplexer, a power coupler coupler, and a switch (such as a single-pole double-throw SPDT switch), the radio frequency transceiver is connected to the input port of the first PA, the input port of the second PA, the The output port of the first LNA, the output port of the second LNA, the output port of the first PA and the input port of the first LNA are connected to the first duplexer, and the output port of the second PA The input port of the second LNA is connected to the second duplexer, the first duplexer and the second duplexer are connected to the coupler, the coupler is connected to the switching switch, and the switching A switch is connected to the first T port;

The receiving signal processing circuit includes a low noise amplifier LNA and a filter filter, the radio frequency transceiver is connected to the output port of the LNA, the input port of the LNA is connected to the filter, and the filter is connected to the second T port ; Or, the 2-way receiving signal processing circuits of different frequency bands are connected in parallel through a switch to form a receiving signal integrated circuit, and the receiving signal integrated circuit includes a first LNA, a first filter, a second LNA, a second filter, and a switch. The radio frequency transceiver is connected to the output port of the first LNA and the output port of the second LNA, the input port of the first LNA is connected to the first filter, and the input port of the second LNA is connected to the first filter. Two filters, the first filter and the second filter are connected to the switch, and the switch is connected to the second T port.

Wherein, since the PAs in the multi-channel transmission signal processing circuit do not work simultaneously under the FDD standard and single-transmission mode, multiple PAs of the multi-channel transmission signal processing circuit can be set in the same independent circuit module.

It can be seen that in this example, the integrated circuits for transmitting and receiving signals and the processing circuits for receiving signals support their corresponding functions in a relatively simplified manner, which is beneficial to modularization and cost reduction, and improves the configuration efficiency of radio frequency systems in electronic equipment.

In this possible example, n=4, the at least one independent circuit module includes k independent circuit modules, k=1 or 2 or 3 or 4.

Wherein, as shown in FIG. 5B, in the case of dual frequency single transmission, n=4, m=1, the number of switch tubes of the multiplexer switch is 4+(1*4+(4-1)*2) *3+4=38, Nx represents the first frequency band supported by the electronic device, Ny represents the second frequency band supported by the electronic device, such as n77 (3.3-4.2GHz) and n78 (3.3GHz) in the 5G NR system ～3.8GHz), n79(4.4GHz～4.99GHz), etc. TRX indicates the port supporting signal sending and receiving function, TX indicates the port supporting signal transmitting function, RX indicates the port supporting signal receiving function, the structure shown in this figure is only For example, the structure of the multi-way selector switch can also be in other forms, which are not limited here.

Among them, the 6 receiving signal processing circuits except the 2 receiving signal processing circuits of the transceiver signal integrated circuit are divided into 3 groups of receiving circuits, and each group of receiving circuits includes 2 receiving signal processing circuits of different frequency bands, and by switching The switches are connected in parallel, and an example circuit structure is shown in Figure 5A.

Wherein, when k=1, the integrated circuit for sending and receiving signals and the three groups of receiving circuits are arranged in the same independent circuit module;

When k=2, the integrated circuit for sending and receiving signals is set in one independent circuit module, at least one set of receiving circuits among the three sets of receiving circuits is set in another independent circuit module, and the sending and receiving is set as the first independent circuit module For the signal integrated circuit, the second independent circuit module is equipped with 3 sets of receiving circuits, which are not limited here;

When k=3, the integrated circuit for sending and receiving signals is set in one independent circuit module, and at least two sets of receiving circuits among the three sets of receiving circuits are set in another two independent circuit modules, such as the first independent circuit module sets the sending and receiving For the signal integrated circuit, the second independent circuit module is provided with 2 sets of receiving circuits, and the third independent circuit module is provided with 1 set of receiving circuits, which is not limited here;

When k=4, the integrated circuit for sending and receiving signals and the three groups of receiving circuits are respectively arranged in four independent circuit modules.

It can be seen that, in this example, in the case of n=4 and m=1, the number of switch tubes of the multi-way switch is reduced, the cost is reduced, the insertion loss is reduced, and the radio frequency performance is improved.

In this possible example, n=5, the at least one independent circuit module includes k independent circuit modules, and k is an integer greater than or equal to 1 and less than or equal to 5.

Wherein, as shown in FIG. 5C, in the case of dual-frequency single-shot, n=5, and m=1, the number of switching tubes of the multiplexer switch is 5+(1*4+(5-1)*4) *3+4=69, Nx represents the first frequency band supported by the electronic device, Ny represents the second frequency band supported by the electronic device, such as n77 (3.3-4.2GHz) and n78 (3.3GHz) in the 5G NR system ～3.8GHz), n79(4.4GHz～4.99GHz), etc. TRX indicates the port supporting signal sending and receiving function, TX indicates the port supporting signal transmitting function, RX indicates the port supporting signal receiving function, the structure shown in this figure is only For example, the structure of the multiplex switch may also be in other forms, which are not limited here.

Wherein, the 6-way receiving signal processing circuits except the 2-way receiving signal processing circuits of the transceiver signal integrated circuit are divided into 4 groups of receiving circuits, and the 4 groups of receiving circuits are connected to 4 second T ports, and the 4 groups of receiving circuits There are 2 sets of receiving circuits in the circuit, each of which includes 1 receiving signal processing circuit, and the remaining 2 receiving circuits each include 2 receiving signal processing circuits of different frequency bands, and are connected in parallel through switches to form the receiving signal integrated circuit. The example circuit structure is detailed See Figure 5A.

Wherein, when k=1, the integrated circuit for sending and receiving signals and the four groups of receiving circuits are arranged in the same independent circuit module;

When k=2, the integrated circuit for sending and receiving signals is set in one independent circuit module, at least one of the four sets of receiving circuits is set in another independent circuit module, and the integrated circuit for sending and receiving signals is set as the first independent circuit module circuit, the second independent circuit module is equipped with 4 sets of receiving circuits, and there is no unique limitation here;

When k=3, the integrated circuit for sending and receiving signals is set in one independent circuit module, at least two of the four sets of receiving circuits are set in another two independent circuit modules, and the integrated circuit for sending and receiving signals is set as the first independent circuit module circuit, the second independent circuit module is provided with 2 sets of receiving circuits, and the third independent circuit module is provided with 2 sets of receiving circuits, and there is no unique limitation here;

When k=4, the integrated circuit for sending and receiving signals is arranged in one independent circuit module, and at least three of the four sets of receiving circuits are arranged in another three independent circuit modules.

It can be seen that in this example, in the case of dual-frequency single-transmission, n=5, m=1, the number of switch tubes of the multi-way switch is reduced, the cost is reduced, the insertion loss is reduced, and the radio frequency performance is improved.

In this possible example, n=6, the at least one independent circuit module includes k independent circuit modules, and k is an integer greater than or equal to 1 and less than or equal to 6.

Wherein, as shown in FIG. 5D, in the case of dual-frequency single-shot, n=6, m=1, the number of switching tubes of the multi-way switch is 6+(1*4+(6-1)*2) *3+4=52, Nx represents the first frequency band supported by the electronic device, Ny represents the second frequency band supported by the electronic device, such as n77 (3.3-4.2GHz), n78 (3.3GHz) in the 5G NR system ～3.8GHz), n79(4.4GHz～4.99GHz), etc. TRX indicates the port supporting signal sending and receiving function, TX indicates the port supporting signal transmitting function, RX indicates the port supporting signal receiving function, the structure shown in this figure is only For example, the structure of the multiplex switch may also be in other forms, which are not limited here.

Wherein, the 6 receiving signal processing circuits except the 2 receiving signal processing circuits of the transceiver signal integrated circuit are divided into 5 groups of receiving circuits, and the 5 groups of receiving circuits are connected to 5 second T ports, and the 5 groups of receiving circuits There are 4 groups of receiving circuits in the circuit, each of which includes 1 receiving signal processing circuit, and the remaining 1 group of circuits includes 2 receiving signal processing circuits of different frequency bands, which are connected in parallel through a switch. The example circuit structure is shown in Figure 5A.

Wherein, when k=1, the integrated circuit for sending and receiving signals and five groups of receiving circuits are set in the same independent circuit module;

When k=2, the integrated circuit for sending and receiving signals is set in one independent circuit module, at least one of the five sets of receiving circuits is set in another independent circuit module, and the integrated circuit for sending and receiving signals is set as the first independent circuit module circuit, the second independent circuit module is equipped with 5 sets of receiving circuits, and there is no unique limitation here;

When k=3, the integrated circuit for sending and receiving signals is arranged in one independent circuit module, at least two of the five groups of receiving circuits are arranged in another two independent circuit modules, and the integrated circuit for sending and receiving signals is set as the first independent circuit module circuit, the second independent circuit module is provided with 4 sets of receiving circuits, and the third independent circuit module is provided with 1 set of receiving circuits, which is not uniquely limited here;

When k=4, the integrated circuit for sending and receiving signals is arranged in one independent circuit module, and at least three of the five groups of receiving circuits are arranged in another three independent circuit modules.

It can be seen that in this example, when n=6 and m=1, the number of switch tubes of the multi-way switch is reduced, the cost is reduced, the insertion loss is reduced, and the radio frequency performance is improved.

In this possible example, n=7, the at least one independent circuit module includes k independent circuit modules, and k is an integer greater than or equal to 1 and less than or equal to 7.

Wherein, as shown in FIG. 5E, in the case of dual-frequency single-shot, n=7, m=1, the number of switch tubes of the multi-way switch is 7+(1*4+(7-1)*2) *3+4=59, Nx represents the first frequency band supported by the electronic device, Ny represents the second frequency band supported by the electronic device, such as n77 (3.3-4.2GHz) and n78 (3.3GHz) in the 5G NR system ～3.8GHz), n79(4.4GHz～4.99GHz), etc. TRX indicates the port supporting signal sending and receiving function, TX indicates the port supporting signal transmitting function, RX indicates the port supporting signal receiving function, the structure shown in this figure is only For example, the structure of the multiplex switch may also be in other forms, which are not limited here.

Wherein, the 6 receiving signal processing circuits other than the 2 receiving signal processing circuits of the transceiver signal integrated circuit are respectively connected to the 6 second T ports.

Wherein, when k=1, the integrated circuits for transmitting and receiving signals and the six receiving signal processing circuits are arranged in the same independent circuit module;

When k=2, the integrated circuit for sending and receiving signals is set in one independent circuit module, at least one of the six receiving signal processing circuits is set in another independent circuit module, and the sending and receiving is set as the first independent circuit module In the signal integrated circuit, the second independent circuit module is equipped with 6 receiving signal processing circuits, which are not limited here;

When k=3, the transceiver signal integrated circuit is arranged in one independent circuit module, and at least two of the six received signal processing circuits are arranged in another two independent circuit modules, as the first independent circuit module sets the transceiver In the signal integrated circuit, the second independent circuit module is provided with 3 receiving signal processing circuits, and the third independent circuit module is provided with 3 receiving signal processing circuits, and there is no unique limitation here;

When k=4, the integrated circuit for sending and receiving signals is arranged in one independent circuit module, and at least three of the six receiving signal processing circuits are arranged in another three independent circuit modules.

It can be seen that in this example, in the case of n=7 and m=1, the number of switch tubes of the multi-way switch is reduced, the cost is reduced, the insertion loss is reduced, and the radio frequency performance is improved.

In a possible example, the single-shot mode is a dual-frequency single-shot mode, m=2; the radio frequency circuit of the electronic device logically includes 2 transmission signal processing circuits and 8 reception signal processing circuits; each One transmission signal processing circuit and one reception signal processing circuit supporting the same frequency band are connected in parallel through a duplexer to form a transmission and reception signal processing circuit, and the duplexer is used to combine transmission signals and reception signals in the same frequency band to realize the electronic device Simultaneous work of transmitting and receiving on different frequency points under the FDD system;

The radio frequency circuit is physically composed of at least one independent circuit module;

The signal transceiving port of the at least one independent circuit module is used to connect to the first T port, and the signal receiving port of the at least one independent circuit module is used to connect to the second T port.

Wherein, the signal transceiving port is a port of the transceiving signal processing circuit close to the multiplex switch, and the signal receiving port is a port of the receive signal processing circuit close to the multiple select switch.

It can be seen that in this example, since the radio frequency processing circuit can form a transmitting and receiving signal processing circuit through a duplexer in parallel with a transmitting signal processing circuit and a receiving signal processing circuit, thereby combining transmitting signals and receiving signals in the same frequency band, realizing the electronic The equipment transmits and receives simultaneously at different frequency points under the FDD system, which is beneficial to expand the functionality of the electronic equipment.

In this possible example, as shown in FIG. 6A, the transceiver signal processing circuit includes a power amplifier PA, a low noise amplifier LNA, a duplexer, and a power coupler coupler, and the radio frequency transceiver is connected to the input port of the PA. and the output port of the LNA, the output port of the PA and the input port of the LNA are connected to the duplexer, the duplexer is connected to the coupler, and the coupler is connected to the first T port;

The receiving signal processing circuit includes a low noise amplifier LNA and a filter filter, the radio frequency transceiver is connected to the output port of the LNA, the input port of the LNA is connected to the filter, and the filter is connected to the second T port ; Or, the 2-way receiving signal processing circuits of different frequency bands are connected in parallel through a switch to form a receiving signal integrated circuit, and the receiving signal integrated circuit includes a first LNA, a first filter, a second LNA, a second filter, and a switch. The radio frequency transceiver is connected to the output port of the first LNA and the output port of the second LNA, the input port of the first LNA is connected to the first filter, and the input port of the second LNA is connected to the first filter. Two filters, the first filter and the second filter are connected to the switch, and the switch is connected to the second T port.

It can be seen that in this example, both the transmitting and receiving signal processing circuit and the receiving signal processing circuit support their corresponding functions in a relatively simplified manner, which is conducive to modularization and cost reduction, and improves the configuration efficiency of the radio frequency system in electronic equipment.

In this possible example, n=5, the at least one independent circuit module includes k independent circuit modules, and k is an integer greater than or equal to 1 and less than or equal to 5.

Wherein, as shown in FIG. 6B, in the case of dual frequency single transmission, n=5, m=2, the number of switch tubes of the multiplexer switch is 5+(2*4+(5-2)*2) *3+4=51, Nx represents the first frequency band supported by the electronic device, Ny represents the second frequency band supported by the electronic device, such as n77 (3.3-4.2GHz) and n78 (3.3GHz) in the 5G NR system ～3.8GHz), n79(4.4GHz～4.99GHz), etc. TRX indicates the port supporting signal sending and receiving function, TX indicates the port supporting signal transmitting function, RX indicates the port supporting signal receiving function, the structure shown in this figure is only For example, the structure of the multi-way selector switch can also be in other forms, which are not limited here.

Wherein, the 6 receiving signal processing circuits except the 2 receiving signal processing circuits of the 2 receiving and transmitting signal processing circuits are divided into 3 groups of receiving circuits, and the 3 groups of receiving circuits are connected to the ports of 3 second Ts, and the 3 groups Each group of receiving circuits in the receiving circuit includes 2 receiving signal processing circuits of different frequency bands, which are connected in parallel through switching switches to form the receiving signal integrated circuit. An example circuit structure is shown in Figure 6A.

Wherein, when k=1, 2 channels of sending and receiving signal processing circuits and 3 groups of receiving circuits are arranged in the same independent circuit module;

When k=2, the 2-way transceiver signal processing circuit and 3 groups of receiving circuits are arranged in 2 independent circuit modules, such as the first independent circuit module is provided with the 2-way transceiver signal processing circuit, and the second independent circuit module is provided with 3 The group receiving circuit is not uniquely limited here;

When k=3, the 2-way transceiver signal processing circuit and 3 groups of receiving circuits are arranged in 3 independent circuit modules, such as the first independent circuit module is provided with the 2-way transceiver signal processing circuit, and the second independent circuit module is provided with 2 A group of receiving circuits, the third independent circuit module is equipped with a group of receiving circuits, and there is no unique limitation here;

When k=4, the 2 channels of sending and receiving signal processing circuits and 3 groups of receiving circuits are arranged in 4 independent circuit modules.

It can be seen that in this example, in the case of n=5 and m=2, the number of switching tubes of the multi-way switch is reduced, and the number of modules can be arbitrarily configured within the range of the number of T ports, reducing cost and insertion loss, and improving radio frequency performance .

In this possible example, n=6, the at least one independent circuit module includes k independent circuit modules, and k is an integer greater than or equal to 1 and less than or equal to 6.

Wherein, as shown in FIG. 6C, in the case of dual-frequency single-shot, n=6, m=2, the number of switch tubes of the multi-way switch is 6+(2*4+(6-2)*2) *3+4=58, Nx represents the first frequency band supported by the electronic device, Ny represents the second frequency band supported by the electronic device, such as n77 (3.3-4.2GHz) and n78 (3.3GHz) in the 5G NR system ～3.8GHz), n79(4.4GHz～4.99GHz), etc. TRX indicates the port supporting signal sending and receiving function, TX indicates the port supporting signal transmitting function, RX indicates the port supporting signal receiving function, the structure shown in this figure is only For example, the structure of the multi-way selector switch can also be in other forms, which are not limited here.

Wherein, the 6 receiving signal processing circuits except the 2 receiving signal processing circuits of the 2 transmitting and receiving signal processing circuits are divided into 4 groups of receiving circuits, and the 4 groups of receiving circuits are connected to 4 second T ports, and the 4 groups of receiving circuits There are 2 sets of receiving circuits in the circuit, each of which includes 1 receiving signal processing circuit, and the remaining 2 receiving circuits each include 2 receiving signal processing circuits of different frequency bands, and are connected in parallel through switching switches to form the receiving signal integrated circuit. The example circuit structure is detailed See Figure 6A.

Wherein, when k=1, 2 channels of sending and receiving signal processing circuits and 4 groups of receiving circuits are arranged in the same independent circuit module;

When k=2, the 2-way transceiver signal processing circuit and 4 groups of receiving circuits are arranged in 2 independent circuit modules, such as the first independent circuit module is provided with the 2-way transceiver signal processing circuit, and the second independent circuit module is provided with 4 The group receiving circuit is not uniquely limited here;

When k=3, the 2-way transceiver signal processing circuit and 4 groups of receiving circuits are arranged in 3 independent circuit modules, such as the first independent circuit module is provided with the 2-way transceiver signal processing circuit, and the second independent circuit module is provided with 2 One group of receiving circuits, the third independent circuit module is provided with two groups of receiving circuits, and there is no unique limitation here;

When k=4, the 2 channels of sending and receiving signal processing circuits and 4 groups of receiving circuits are arranged in 4 independent circuit modules.

It can be seen that in this example, in the case of n=6 and m=2, the number of switching tubes of the multi-way switch is reduced, and the number of modules can be arbitrarily configured within the range of the number of T ports, reducing costs and reducing insertion loss, and improving radio frequency performance .

In this possible example, n=7, the at least one independent circuit module includes k independent circuit modules, and k is an integer greater than or equal to 1 and less than or equal to 7.

Wherein, as shown in FIG. 6D, in the case of dual-frequency single-shot, n=7, m=2, the number of switch tubes of the multi-way switch is 7+(2*4+(7-2)*2) *3+4=65, Nx represents the first frequency band supported by the electronic device, Ny represents the second frequency band supported by the electronic device, such as n77 (3.3-4.2GHz) and n78 (3.3GHz) in the 5G NR system ～3.8GHz), n79(4.4GHz～4.99GHz), etc. TRX indicates the port supporting signal sending and receiving function, TX indicates the port supporting signal transmitting function, RX indicates the port supporting signal receiving function, the structure shown in this figure is only For example, the structure of the multi-way selector switch can also be in other forms, which are not limited here.

Wherein, the 6 receiving signal processing circuits except the 2 receiving signal processing circuits of the 2 transmitting and receiving signal processing circuits are divided into 5 groups of receiving circuits, and the 5 groups of receiving circuits are connected to 5 second T ports, and the 5 groups of receiving circuits There are 4 groups of receiving circuits in the circuit, each of which includes 1 receiving signal processing circuit, and the remaining 1 group of circuits includes 2 receiving signal processing circuits of different frequency bands, which are connected in parallel through switching switches to form a receiving signal integrated circuit. The example circuit structure is shown in Figure 6A.

Wherein, when k=1, 2 channels of sending and receiving signal processing circuits and 5 groups of receiving circuits are arranged in the same independent circuit module;

When k=2, the 2-way transceiver signal processing circuit and 5 groups of receiving circuits are arranged in 2 independent circuit modules, such as the first independent circuit module is provided with the 2-way transceiver signal processing circuit, and the second independent circuit module is provided with 5 The group receiving circuit is not uniquely limited here;

When k=3, the 2-way transceiver signal processing circuit and 5 groups of receiving circuits are arranged in 3 independent circuit modules, such as the first independent circuit module is provided with the 2-way transceiver signal processing circuit, and the second independent circuit module is provided with 3 One group of receiving circuits, the third independent circuit module is provided with two groups of receiving circuits, and there is no unique limitation here;

When k=4, the 2 channels of sending and receiving signal processing circuits and 5 groups of receiving circuits are arranged in 4 independent circuit modules.

It can be seen that in this example, in the case of n=7 and m=2, the number of switch tubes of the multi-way switch is reduced, and the number of modules can be arbitrarily configured within the range of the number of T ports, which reduces costs and reduces insertion loss, and improves radio frequency performance .

In this possible example, n=8, the at least one independent circuit module includes k independent circuit modules, and k is an integer greater than or equal to 1 and less than or equal to 8.

Wherein, as shown in FIG. 6E, in the case of dual-frequency single-shot, n=8, m=2, the number of switch tubes of the multi-way switch is 8+(2*4+(8-2)*2) *3+4=72, Nx represents the first frequency band supported by the electronic device, Ny represents the second frequency band supported by the electronic device, such as n77 (3.3-4.2GHz), n78 (3.3GHz) in the 5G NR system ～3.8GHz), n79(4.4GHz～4.99GHz), etc. TRX indicates the port supporting signal sending and receiving function, TX indicates the port supporting signal transmitting function, RX indicates the port supporting signal receiving function, the structure shown in this figure is only For example, the structure of the multi-way selector switch can also be in other forms, which are not limited here.

Wherein, the 6 receiving signal processing circuits other than the 2 receiving signal processing circuits of the transmitting and receiving signal processing circuit are respectively connected to the 6 second T ports.

Wherein, when k=1, the 2-way sending and receiving signal processing circuits and the 6-way receiving signal processing circuits are arranged in the same independent circuit module;

When k=2, the 2-way transceiver signal processing circuit and the 6-way receiving signal processing circuit are arranged in 2 independent circuit modules, such as the first independent circuit module is provided with the 2-way transceiver signal processing circuit, and the second independent circuit module Set up 6 channels of receiving signal processing circuits, which are not uniquely limited here;

When k=3, the 2-way transceiver signal processing circuit and the 6-way receiving signal processing circuit are arranged in 3 independent circuit modules, such as the first independent circuit module is provided with the 2-way transceiver signal processing circuit, and the second independent circuit module Set 4 channels of receiving signal processing circuits, and the third independent circuit module is equipped with 2 channels of receiving signal processing circuits, and there is no unique limitation here;

When k=4, the 2 channels of receiving and receiving signal processing circuits and the 6 channels of receiving signal processing circuits are arranged in 4 independent circuit modules.

It can be seen that in this example, in the case of n=8 and m=2, the number of switching tubes of the multi-way switch is reduced, and the number of modules can be arbitrarily configured within the range of the number of T ports, reducing cost and insertion loss, and improving radio frequency performance .

In a possible example, the four antennas include 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 all Antennas that support the 5G NR band.

Wherein, the 5G NR frequency band may include, for example, 3.3GHz-3.8GHz, 4.4GHz-5GHz.

In a possible example, the four antennas include a first antenna, a second antenna, a third antenna, and a fourth antenna, and the first antenna and the fourth antenna are antennas supporting LTE frequency bands and 5G NR frequency bands , the second antenna and the third antenna are antennas that only support the 5G NR frequency band.

Among them, the first and fourth antennas are used to support DL 4x4 MIMO of individual frequency bands on LTE terminals. Its two receiving antennas are shared with 5G NR antennas. The LTE frequency band may include, for example, 1880-1920 MHz and 2496-2690 MHz.

In a possible example, as shown in FIG. 7, the antenna system further includes a first combiner and a second combiner, wherein the first port of the first combiner is used to connect the first An antenna, the second port of the first combiner is used to connect the first receive path in the LTE 4x4 MIMO of the electronic device, and the third port of the first combiner is used to connect the multiple channels Select the corresponding P port in the switch; the first port of the second combiner is used to connect the fourth antenna, and the second port of the second combiner is used to connect to the LTE 4x4MIMO of the electronic device The second receiving path of the second combiner, the third port of the second combiner is used to connect to the corresponding P port in the multiplexer.

Wherein, the LTE 4*4MIMO is a downlink LTE receiving circuit, which may be defined as a third receiving path. Because the current LTE already has 2 channels of reception. When supporting LTE 4x4 MIMO, the third and fourth receiving channels will be added.

Among them, the electronic device will reserve one antenna with better performance for the main set in the circuit to receive PRX for standby use according to the actual situation of the four antennas, and the first T port in the switch has the function of sending and receiving, that is, it can be used for TX and The PRX function can switch antennas arbitrarily, so there is no need to restrict the connection port of the shared antenna here.

In a possible example, as shown in FIG. 8 , the antenna system further includes a first single-pole double-throw SPDT switch and a second SPDT switch, wherein the first port of the first SPDT switch is used to connect the first An antenna, the second port of the first SPDT switch is used to connect to the first receiving path in the LTE 4x4MIMO of the electronic device, and the third port of the first SPDT switch is used to connect to the multiplexer switch The corresponding P port; the first port of the second SPDT switch is used to connect the fourth antenna, and the second port of the second SPDT switch is used to connect the second antenna in the LTE 4x4MIMO of the electronic device In the receiving path, the third port of the second SPDT switch is used to connect to the corresponding P port of the multiplex switch.

Please refer to FIG. 9. FIG. 9 is a schematic flowchart of a function control method provided by an embodiment of the present application, which is applied to electronic equipment, and the electronic equipment includes an antenna system, a radio frequency circuit, and a multi-way selection switch. The multi-way selection switch Including n T ports and 4 P ports, the n T ports include m first T ports and n-m second T ports, the electronic device supports single-shot mode, and each first T port is fully connected to the 4 P ports, each second T port is connected to 2 P ports in the 4 P ports, and the P ports connected to multiple second T ports supporting the signal receiving function of the same frequency band cover the 4 P ports port, and the P ports connected to each T port in the 4 T ports in the signal receiving state are different from each other, m is equal to 1 or 2 or 4, and n is an integer greater than or equal to 4; the method includes:

S901. The electronic device determines to execute a preset function, and the preset function includes a first function and a second function, and the first function is to support sending a 4-port SRS by sending a sounding reference signal SRS in rotation between transmitting antennas function, the second function is to support the function of simultaneously receiving data by the four antennas;

S902. During the process of enabling the first function, the electronic device adjusts the relationship between the 3 T ports and the 4 T ports currently occupied by the second function according to the P port currently occupied by the first function. the matching state between 3 P ports among the 3 P ports, and the 3 T ports are 3 T ports among the 4 T ports except the single first T port currently used by the first function, The 3 P ports are 3 P ports of the 4 P ports except the P port occupied by the single first T port currently used by the first function.

Among them, the electronic device performs the first and second functions, which can meet the functional requirements in the 5G NR FDD standard system.

It can be seen that in the embodiment of the present application, the electronic device can realize the preset function in the 5G NR FDD standard system through the radio frequency system built on the basis of the multi-way selection switch, and because the structure of the multi-way selection switch is simplified and the control is efficient, it is beneficial to improve the electronic equipment. Complete the real-time and efficiency of preset functions.

The following takes the multi-way switch as shown in FIG. 4B as an example to describe the switching process between the T port and the P port in the embodiment of the present application in detail. Assume that in the initial state of the multi-way switch, the 4 T ports are connected to 4 P ports in parallel, that is, T1 is connected to P1, T2 is connected to P2, T3 is connected to P3, T4 is connected to P4, and the 4 P ports are respectively connected to 4 antennas. When it is determined to enable the preset function, the electronic device can send and receive signals through the T1 and P1 paths (the path is pre-conducted as a receiving path) during the first detection period during the process of enabling the SRS to perform signal reception and the first In the channel quality detection of the antenna, in the first detection period, since the P ports corresponding to T2, T3 and T4 are not occupied, no switching occurs in this period.

Secondly, the electronic device can control T1 and P2 to turn on and transmit signals in the second detection cycle to perform channel detection of the second antenna for signal reception. In this cycle, P2 corresponding to the original T2 is occupied. In order to maintain the signal receiving function of T2, T2 needs Switch connection to P1.

Again, the electronic device can control T1 and P3 to conduct signal reception and third antenna channel detection in the third detection cycle. In this cycle, P3 corresponding to the original T3 is occupied. In order to maintain the signal receiving function of T3, T3 needs Switch connection to P2.

Finally, the electronic device can control T1 and P4 to conduct signal reception and fourth antenna channel detection in the fourth detection cycle. In this cycle, P4 corresponding to the original T4 is occupied. In order to maintain the signal reception function of T4, T4 needs Switch connection to P3.

So far, the electronic device has completed the SRS detection process, and T1 is connected to P4 for signal reception, T2 is connected to P1 for signal reception, T3 is connected to P2 for signal reception, and T4 is connected to P3 for signal reception.

Please refer to FIG. 10. FIG. 10 is a schematic structural diagram of a radio frequency system provided by an embodiment of the present application. The radio frequency system includes an antenna system, a radio frequency circuit, and the multiplexer switch described in any of the above embodiments;

The multiplex switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the electronic device in the frequency division multiplexing FDD system, and the preset function includes a first function and a second function , the first function is to support the function of sending 4-port SRS by rotating the sounding reference signal SRS among the transmitting antennas, and the second function is to support the function of receiving data by the 4 antennas at the same time.

Please refer to FIG. 11. FIG. 11 is a schematic structural diagram of a wireless communication device provided by an embodiment of the present application. The wireless communication device includes an antenna system, a radio frequency circuit, and the multiplexing switch described in any of the above-mentioned embodiments;

The multiplex switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the electronic device in the frequency division multiplexing FDD system, and the preset function includes a first function and a second function , the first function is to support the function of sending 4-port SRS by rotating the sounding reference signal SRS among the transmitting antennas, and the second function is to support the function of receiving data by the 4 antennas at the same time;

The wireless communication device includes at least any one of the following: electronic equipment and a base station.

In addition, as shown in Figure 12, the four antennas in the antenna system described in the embodiment of the present application can also be multiplexed by the wireless charging receiver of the electronic device. Specifically, the wireless charging receiver includes a receiving antenna, a receiving The control circuit, the receiving antenna is matched with the transmitting antenna of the wireless charging transmitter (resonant at the same or similar frequency, and the energy is transmitted by wireless transmission in the form of radiative resonant magnetic coupling), and the receiving control circuit passes the loop array antenna The energy is converted into direct current DC output to charge the battery, and the receiving control circuit can dynamically adjust the frequency of the loop array antenna and match it with the frequency of the transmitting antenna of the wireless charging transmitter to achieve paired charging, or, real-time and wireless charging Transmitters interact with frequency ranges to achieve "exclusive encryption" wireless charging mode.

Wherein, the receiving antenna may be an antenna composed of at least one antenna among the four antennas (in the case of multiple antennas, the antennas are gated by a switch).

For example: as shown in Figure 13, the receiving antenna is a circular array antenna composed of the above four antennas, and the four antennas specifically include antenna 1, antenna 2, antenna 3, and antenna 4, where antenna 1 and antenna 4 support LTE and 5G The NR frequency band, antenna 2 and antenna 3 only support the 5G NR frequency band, the port of antenna 1 and the port of antenna 4 are used as the ports of the ring array antenna, and the adjacent antennas are connected by a gating circuit 170 with an isolation function. The pass circuit 170 includes a spacer 171 and a switch 172. The spacer 171 is a conductor, and the switch 172 is also connected to the controller. The electronic device can connect the switch 172 of each pass circuit 170 in the wireless charging mode to form a circular array antenna to receive energy. . By adding spacers 171 between the antennas, the gating circuit 170 on the one hand reduces the mutual coupling between the multiple antennas of the electronic device in the normal communication mode, improves the isolation between the multiple antennas, and optimizes the performance of the antennas. On the one hand, multiple antennas can be connected in series to form a loop array antenna through the switch 171, so as to better match the transmitting antenna to transmit energy. In addition, since the antenna 1 and antenna 4 are stronger than the antenna 2 and antenna 3, the loop array antenna set in this way can be Minimize energy transmission losses as much as possible.

The above is the implementation of the embodiment of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the embodiment of the present application, some improvements and modifications can also be made. These improvements and modifications are also It is regarded as the scope of protection of this application.

Claims (20)

1. A multiplex switch, characterized in that it is applied to electronic equipment, the electronic equipment includes an antenna system and a radio frequency circuit, the antenna system includes 4 antennas, and the multiplex switch includes n T ports and 4 P ports, the n T ports include m first T ports and n-m second T ports, the electronic device supports single-shot mode, each first T port is fully connected to the 4 P ports, each A second T port is connected to 2 P ports in the 4 P ports, and the P ports connected to multiple second T ports that support the signal receiving function of the same frequency band cover the 4 P ports, and are in the signal receiving mode. The P ports connected to each of the four T ports in the state are different from each other, m is equal to 1 or 2 or 4, and n is an integer greater than or equal to 4; The multiplex switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the electronic device in the frequency division multiplexing FDD system, and the preset function includes a first function and a second function , the first function is to support the function of sending 4-port SRS by rotating the sounding reference signal SRS among the transmitting antennas, and the second function is to support the function of receiving data by the 4 antennas at the same time. 2. The multiplex switch according to claim 1, wherein n is less than or equal to 10; each P port in the 4 P ports is connected to a corresponding antenna; the first T port supports signal transceiving function , the second T port only supports signal receiving function. 3. The multiplexer switch according to claim 1 or 2, wherein the single-shot mode includes a single-frequency single-shot mode and a dual-frequency single-shot mode. 4. The multiplexer switch according to any one of claims 1-3, wherein the multiplexer switch comprises n first switch tubes, (m*4+(n-m)*2)*3 A second switch tube and four third switch tubes, the first switch tube corresponds to the T port, the third switch tube corresponds to the P port, and every three second switch tubes are connected in series to form the The switch subunit between the T port and the P port, the two second switch tubes at both ends of the switch subunit are respectively connected to a T port and a P port, and the second switch tube in the middle of the switch subunit The switch tubes are grounded, and the gates of each of the first switch tubes, each of the second switch tubes, and each of the third switch tubes are connected to a switch control chip. 5. The multiplexing switch according to any one of claims 1-4, wherein the single-shot mode is a single-frequency single-shot mode, m=1; the radio frequency circuit of the electronic device is logically It includes 1 transmission signal processing circuit and 4 reception signal processing circuits; the transmission signal processing circuit and 1 reception signal processing circuit are connected in parallel through a duplexer to form a transceiver signal processing circuit, and the duplexer is used to combine the same frequency band Transmitting signals and receiving signals, so as to realize the simultaneous operation of the electronic device transmitting and receiving at different frequency points under the FDD system; The radio frequency circuit is physically composed of at least one independent circuit module; The signal transceiving port of the at least one independent circuit module is used to connect to the first T port, and the signal receiving port of the at least one independent circuit module is used to connect to the second T port. 6. multiplexer switch according to claim 5, is characterized in that, described transceiver signal processing circuit comprises power amplifier PA, low noise amplifier LNA, duplexer and power coupler coupler, and described radio frequency transceiver connects The input port of the PA and the output port of the LNA, the output port of the PA and the input port of the LNA are connected to the duplexer, the duplexer is connected to the coupler, and the coupler is connected to the second a T port; The receiving signal processing circuit includes a low noise amplifier LNA and a filter filter, the radio frequency transceiver is connected to the output port of the LNA, the input port of the LNA is connected to the filter, and the filter is connected to the second T port . 7. The multiplex switch according to claim 5 or 6, wherein n=4, said at least one independent circuit module includes k independent circuit modules, k=1 or 2 or 3 or 4. 8. The multiplexing switch according to any one of claims 1-4, wherein the single-shot mode is a dual-frequency single-shot mode, m=1; the radio frequency circuit of the electronic device is logically Including 2 transmission signal processing circuits and 8 reception signal processing circuits; each transmission signal processing circuit and 1 reception signal processing circuit supporting the same frequency band are connected in parallel through a duplexer to form a transceiver signal processing circuit, and 2 transmission and reception signals in different frequency bands The processing circuit is connected in parallel by switching switches to form an integrated circuit for sending and receiving signals, and the duplexer is used to combine the transmitting signal and receiving signal of the same frequency band, so as to realize that the electronic device transmits and receives signals at different frequency points under the FDD standard. work at the same time; The radio frequency circuit is physically composed of at least one independent circuit module; The signal transceiving port of the at least one independent circuit module is used to connect to the first T port, and the signal receiving port of the at least one independent circuit module is used to connect to the second T port. 9. The multiplexer switch according to claim 8, wherein the integrated circuit for sending and receiving signals comprises a first power amplifier PA, a first low noise amplifier LNA, a first duplexer, a second power amplifier PA, A second low noise amplifier LNA, a second duplexer, a power coupler coupler and a switch, the radio frequency transceiver is connected to the input port of the first PA, the input port of the second PA, and the first LNA The output port of the second LNA, the output port of the first PA and the input port of the first LNA are connected to the first duplexer, the output port of the second PA and the The input port of the second LNA is connected to the second duplexer, the first duplexer and the second duplexer are connected to the coupler, the coupler is connected to the switching switch, and the switching switch is connected to the the first T port; The receiving signal processing circuit includes a low noise amplifier LNA and a filter filter, the radio frequency transceiver is connected to the output port of the LNA, the input port of the LNA is connected to the filter, and the filter is connected to the second T port and/or, the receiving signal processing circuit includes a first LNA, a first filter, a second LNA, a second filter, and a switch, and the radio frequency transceiver is connected to the output port of the first LNA and the second The output port of the LNA, the input port of the first LNA is connected to the first filter, the input port of the second LNA is connected to the second filter, and the first filter and the second filter are connected to the switch A switch, the switching switch is connected to the second T port. 10. The multiplex switch according to claim 8 or 9, wherein n=4, the at least one independent circuit module includes k independent circuit modules, k=1 or 2 or 3 or 4; or , n=5, the at least one independent circuit module includes k independent circuit modules, k is an integer greater than or equal to 1 and less than or equal to 5; or, n=6, the at least one independent circuit module includes k independent circuit modules, k is an integer greater than or equal to 1 and less than or equal to 6; or, n=7, the at least one independent circuit module includes k independent circuit modules, k is an integer greater than or equal to 1 and less than or equal to 7. 11. The multiplexing switch according to any one of claims 1-4, wherein the single-shot mode is a dual-frequency single-shot mode, m=2; the radio frequency circuit of the electronic device is logically It includes 2 transmission signal processing circuits and 8 reception signal processing circuits; each transmission signal processing circuit and 1 reception signal processing circuit supporting the same frequency band are connected in parallel through a duplexer to form a transceiver signal processing circuit, and the duplexer is used for combining transmitting signals and receiving signals in the same frequency band, so as to realize the simultaneous operation of the electronic device transmitting and receiving at different frequency points under the FDD system; The radio frequency circuit is physically composed of at least one independent circuit module; The signal transceiving port of the at least one independent circuit module is used to connect to the first T port, and the signal receiving port of the at least one independent circuit module is used to connect to the second T port. 12. The multi-way selector switch according to claim 11, wherein the transceiver signal processing circuit comprises a power amplifier PA, a low noise amplifier LNA, a duplexer and a power coupler coupler, and the radio frequency transceiver is connected to the The input port of the PA and the output port of the LNA, the output port of the PA and the input port of the LNA are connected to the duplexer, the duplexer is connected to the coupler, and the coupler is connected to the second a T port; The receiving signal processing circuit includes a low noise amplifier LNA and a filter filter, the radio frequency transceiver is connected to the output port of the LNA, the input port of the LNA is connected to the filter, and the filter is connected to the second T port . 13. The multiplexer switch according to claim 11 or 12, wherein n=5, the at least one independent circuit module includes k independent circuit modules, k is greater than or equal to 1 and less than or equal to 5 an integer of ; or, n=6, the at least one independent circuit module includes k independent circuit modules, k is an integer greater than or equal to 1 and less than or equal to 6; or, n=7, the at least one independent circuit module includes k independent circuit modules, k is an integer greater than or equal to 1 and less than or equal to 7; or, n=8, the at least one independent circuit module includes k independent circuit modules, k is an integer greater than or equal to 1 and less than or equal to 8. 14. The multiplexing switch according to any one of claims 1-13, wherein the four antennas include 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 all antennas supporting the fifth-generation new air interface 5G NR frequency band. 15. The multiplexing switch according to any one of claims 1-13, wherein the four antennas comprise a first antenna, a second antenna, a third antenna and a fourth antenna, and the first antenna And the fourth antenna is an antenna supporting the long-term evolution LTE frequency band and the fifth-generation new air interface 5G NR frequency band, and the second antenna and the third antenna are antennas only supporting the 5G NR frequency band. 16. The multiplexing switch according to claim 15, wherein the antenna system further comprises a first combiner and a second combiner, wherein the first port of the first combiner is used for For connecting the first antenna, the second port of the first combiner is used to connect the first receive path in the LTE 4x4 MIMO of the electronic device, and the third port of the first combiner is used for Connect the corresponding P port in the multiplexer; the first port of the second combiner is used to connect the fourth antenna, and the second port of the second combiner is used to connect the electronic For the second receiving path in the LTE 4x4 MIMO of the device, the third port of the second combiner is used to connect to the corresponding P port in the multiplexer. 17. The multiplex switch according to claim 15, wherein the antenna system further comprises a first SPDT switch and a second SPDT switch, wherein the first port of the first SPDT switch is used for For connecting the first antenna, the second port of the first SPDT switch is used to connect the first receiving path in the LTE 4x4 MIMO of the electronic device, and the third port of the first SPDT switch is used to connect the The corresponding P port in the multiplex switch; the first port of the second SPDT switch is used to connect the fourth antenna, and the second port of the second SPDT switch is used to connect the LTE 4x4 of the electronic device For the second receiving path in MIMO, the third port of the second SPDT switch is used to connect to the corresponding P port in the multiplex switch. 18. A function control method, characterized in that it is applied to electronic equipment, and the electronic equipment includes an antenna system, a radio frequency circuit, and a multiplexing switch, and the multiplexing switch includes n T ports and 4 P ports, The n T ports include m first T ports and n-m second T ports, the electronic device supports a single-shot mode, each first T port is fully connected to the four P ports, and each second T port Connecting 2 P ports in the 4 P ports, the P ports connected to multiple second T ports supporting the signal receiving function of the same frequency band cover the 4 P ports, and the 4 P ports in the signal receiving state The P ports connected to each T port in the T ports are different from each other, m is equal to 1 or 2 or 4, and n is an integer greater than or equal to 4; the method includes: The electronic device determines to execute a preset function, and the preset function includes a first function and a second function, and the first function is a function of supporting transmission of a sounding reference signal SRS between transmitting antennas and sending a 4-port SRS, The second function is the function of supporting the four antennas to receive data at the same time; During the process of enabling the first function, the electronic device adjusts the relationship between three T ports among the four T ports currently occupied by the second function and the four P ports according to the P ports currently occupied by the first function. Matching state between 3 P ports among the ports, the 3 T ports are 3 T ports among the 4 T ports except the single first T port currently used by the first function, the The 3 P-ports are the 3 P-ports of the 4 P-ports except the P-port occupied by the single first T-port currently used by the first function. 19. A radio frequency system, characterized in that it comprises an antenna system, a radio frequency circuit, and the multiplexing switch according to any one of claims 1-17; The multiplex switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the electronic device in the frequency division multiplexing FDD system, and the preset function includes a first function and a second function , the first function is to support the function of sending 4-port SRS by rotating the sounding reference signal SRS among the transmitting antennas, and the second function is to support the function of receiving data by the 4 antennas at the same time. 20. A wireless communication device, characterized in that it includes an antenna system, a radio frequency circuit, and the multiplexing switch according to any one of claims 1-17; The multiplex switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the electronic device in the frequency division multiplexing FDD system, and the preset function includes a first function and a second function , the first function is to support the function of sending 4-port SRS by rotating the sounding reference signal SRS among the transmitting antennas, and the second function is to support the function of receiving data by the 4 antennas at the same time; The wireless communication device includes at least any one of the following: electronic equipment and a base station.