CN108900201B

CN108900201B - Multi-way selector switch, radio frequency system and electronic equipment

Info

Publication number: CN108900201B
Application number: CN201810714090.9A
Authority: CN
Inventors: 杨鑫
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-06-29
Filing date: 2018-06-29
Publication date: 2020-07-28
Anticipated expiration: 2038-06-29
Also published as: WO2020001224A1; CN108900201A

Abstract

The application discloses multiple selector switch and relevant product is applied to electronic equipment, electronic equipment includes antenna system and radio frequency circuit, antenna system includes 4 antennas, multiple selector switch includes 4T ports and 4P ports, 4T ports include 1 first T port and 3 second T ports, electronic equipment supports single mode, first T port is full connected 4P ports, every second T port is connected 2P ports among 4P ports, the P port that a plurality of second T ports that support the signal reception function of same frequency channel are connected covers 4P ports, and be in the signal reception state the P port that every T port is connected is different each other among 4T ports. The technical scheme provided by the application has the advantages of reducing the number of switches and improving the radio frequency index performance of the electronic equipment.

Description

Multi-way selector switch, radio frequency system and electronic equipment

Technical Field

The present application relates to the field of electronic technologies, and in particular, to a multi-way selector switch and a related product.

Background

With the widespread use of a large number of electronic devices such as smart phones, smart phones have more and more applications and more powerful functions, and smart phones are developed towards diversification and personalization directions and become indispensable electronic products in user life. Electronic equipment in a fourth generation 4G mobile communication system generally adopts a single-antenna or dual-antenna radio frequency system architecture, and electronic equipment supporting the radio frequency system architecture of 4 antennas is proposed in a new air interface NR system of a fifth generation 5G mobile communication system at present.

Disclosure of Invention

The embodiment of the application provides a multi-way selection switch and a related product, which are used for improving the radio frequency index performance and functionality of electronic equipment.

In a first aspect, an embodiment of the present application provides a multi-way selector switch, which is applied to an electronic device, where the electronic device includes an antenna system and a radio frequency circuit, the antenna system includes 4 antennas, the multi-way selector switch includes 4T ports and 4P ports, the 4T ports include 1 first T port and 3 second T ports, the electronic device supports a single-shot mode, the first T ports are all connected to the 4P ports, each second T port is connected to 2P ports of the 4P ports, the P ports connected to a plurality of second T ports supporting signal receiving functions in the same frequency band cover the 4P ports, and the P ports connected to each T port of the 4T ports in a signal receiving state are different from each other;

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 an FDD mode, the preset function comprises a first function and a second function, the first function is a function of supporting alternate sending and sending of a 4-port SRS between the transmitting antennas through the SRS, and the second function is a function of supporting the 4 antennas to receive data simultaneously.

In a second aspect, an embodiment of the present application provides a function control method, which is applied to an electronic device, where the electronic device includes an antenna system and a radio frequency circuit, the antenna system includes 4 antennas, the multi-way selector switch includes 4T ports and 4P ports, the 4T ports include 1 first T port and 3 second T ports, the electronic device supports a single-shot mode, the first T ports are all connected to the 4P ports, each second T port is connected to 2P ports of the 4P ports, the P ports connected to a plurality of second T ports supporting signal receiving functions in the same frequency band cover the 4P ports, and the P ports connected to each T port of the 4T ports in a signal receiving state are different from each other; the method comprises the following steps:

the electronic equipment determines to execute a preset function, wherein the preset function comprises a first function and a second function, the first function is a function of supporting alternate sending of a 4-port SRS between transmitting antennas through the SRS, and the second function is a function of supporting the 4-port antennas to simultaneously receive data;

in the process of enabling the first function, the electronic device adjusts, according to the P port currently occupied by the first function, matching states between 3T ports of 4T ports currently occupied by the second function and the 4P ports, where the 3T ports are 3T ports of the 4T ports except for a single first T port currently occupied by the first function.

In a third aspect, an embodiment of the present application provides a radio frequency system, which is applied in an electronic device, and includes the multiple-way selection switch according to any one of the first aspect.

In a fourth aspect, an embodiment of the present application provides an electronic device, including an antenna system, a radio frequency circuit, and the multi-way selection switch according to any one of the first aspect.

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 multi-way selection switch, where the antenna system specifically includes 4 antennas, the multi-way selection switch includes 4T ports and 4P ports, and the multi-way selection switch connects the radio frequency circuit and the antenna system, because a second T port of the multi-way selection switch only needs to be connected with 2P ports, a preset function in an FDD system can be implemented, and compared with a switch in which all T ports are fully connected, the switch number can be effectively reduced, thereby reducing insertion loss of a radio frequency link switch, improving an index performance of a radio frequency of the electronic device, and compared with a switch in which the second T port is connected with only a single P port, the preset function in the FDD system can be supported, that is, functionality of the electronic device is expanded.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a 4P4T full-connection switch provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a simplified 4P4T switch provided in the embodiments of the present application;

fig. 4 is an exemplary structure of a transceiver signal processing circuit and a receive signal processing circuit provided in an embodiment of the present application;

fig. 5 is an exemplary structure of a multi-way selector switch in a single-frequency single-shot mode according to an embodiment of the present application;

fig. 6 is an exemplary structure of a radio frequency circuit of an electronic device according to an embodiment of the present disclosure;

fig. 7 is another exemplary structure of a radio frequency circuit of an electronic device according to an embodiment of the present disclosure;

fig. 8 is another exemplary structure of a radio frequency circuit of an electronic device according to an embodiment of the present disclosure;

fig. 9 is an exemplary structure of an integrated processing circuit for transceiving signals and an integrated processing circuit for receiving signals according to an embodiment of the present application;

fig. 10 is an exemplary structure of a multi-way selector switch in a dual-frequency single-shot mode according to an embodiment of the present application;

fig. 11 is another exemplary structure of a radio frequency circuit of an electronic device according to an embodiment of the present disclosure;

fig. 12 is another exemplary structure of a radio frequency circuit of an electronic device according to an embodiment of the present disclosure;

fig. 13 is another exemplary structure of a radio frequency circuit of an electronic device according to an embodiment of the present disclosure;

fig. 14 is an exemplary structure of an antenna system provided in an embodiment of the present application;

fig. 15 is an exemplary structure of another antenna system provided in an embodiment of the present application;

fig. 16 is a flowchart illustrating a method for controlling functions of an electronic device according to an embodiment of the present application;

fig. 17 is an exemplary structure of a radio frequency system according to an embodiment of the present application;

fig. 18 is an exemplary structure of a wireless communication device provided in an embodiment of the present application;

fig. 19 is a schematic diagram of a wireless charging receiver that multiplexes antennas of a wireless communication device according to an embodiment of the present disclosure;

fig. 20 is a schematic structural diagram of a loop array antenna composed of 4 antennas according to an embodiment of the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The following are detailed below.

The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

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 application. The appearances of the 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 explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The electronic device according to the embodiment of the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem in a 5G NR system, and various forms of User Equipment (User Equipment, UE), a Mobile Station (Mobile Station, MS), a terminal device (terminal device), a Customer Premise Equipment (CPE) or a portable broadband wireless device (Mobile Wifi, MIFI), and the like. For convenience of description, the above-mentioned devices are collectively referred to as electronic devices.

At present, the SRS switching4 antenna transmitting function of a mobile phone is a necessary option of the CMCC of the china mobile communication group in "white paper terminal of the chinese mobile 5G scale test technology", and is selectable in the third generation partnership project 3GPP, and the main purpose of the SRS switching4 antenna transmitting function is to determine the quality and parameters of 4 channels of channels by measuring uplink signals of 4 antennas of the mobile phone by a base station, and perform beam forming of a downlink maximized multiple-input multiple-output Massive MIMO antenna array for the 4 channels according to channel reciprocity, so as to finally obtain the optimal data transmission performance of the downlink 4x4 MIMO.

In order to meet the requirement of switching between transmitting and downlink 4X4MIMO functions by using a 4-antenna SRS in an FDD NR system and/or an FDD L TE system, the radio frequency architecture proposed in the embodiments of the present application, which uses a simplified 4PnT antenna switch as a core, can reduce the number of switches connected in series in each path (by integrating all or part of the switches in the 4PnT switch) compared with a 3P 3T/DPDT/multi-path small-switch switching scheme, thereby reducing link loss and optimizing the overall transmitting and receiving performance of the terminal.

Referring to fig. 1, fig. 1 is a schematic diagram of a multi-way selector switch 10 according to an embodiment of the present disclosure, the multi-way switch is applied to an electronic device 100, said electronic device 100 comprising an antenna system 20 and a radio frequency circuit 30, the antenna system 20 includes 4 antennas, the multiplexer 10 includes 4T ports and 4P ports, the 4T-ports include 1 first T-port and 3 second T-ports, the electronic device 100 supports a one-shot mode, the first T port is fully connected with the 4P ports, each second T port is connected with 2P ports in the 4P ports, the P ports connected with a plurality of 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 the signal receiving state are different from each other;

the multi-way selector switch 10 is configured to connect the radio Frequency circuit 30 and the antenna system 20 to implement a preset function of the electronic device in a Frequency Division multiplexing (FDD) system, where the preset function includes a first function and a second function, the first function is a function of supporting alternate transmission of Sounding Reference Signals (SRS) between transmitting antennas and transmitting a 4-port SRS, and the second function is a function of supporting simultaneous data reception by the 4 antennas.

The function of supporting alternate transmission among the transmitting antennas through the SRS is a process of determining channel quality corresponding to each antenna by the electronic device interacting with the base station through a round-training mechanism. The electronic equipment also comprises a radio frequency transceiver which is connected with the radio frequency circuit and forms a radio frequency system of the electronic equipment together with the radio frequency circuit, the multi-way selection switch and the antenna system. When the electronic device is in a downlink 4x4MIMO working mode, the T ports and the P ports in 4 downlink channels of the same frequency band are in one-to-one correspondence. In design principle, four T ports supporting the receiving function in the same frequency band must be connected to 4P ports, respectively, so as to ensure that the downlink four-path receiving function can be realized.

The P Port is called a Port (polarization) Port in the present application, the Port for connecting an antenna in a multiplexer switch in the present application is called a Port, the T Port is called a thru, a Throw in, and the Port for connecting a radio frequency circuit in a multiplexer switch in the present application is called a Port, such as a 4P4T switch.

Because only 1 first T port in the 4T ports is fully connected with the 4P ports, and each port in the second T port is only connected with 2 antennas for receiving, compared with the mode that each T port in the 4T ports is fully connected with the 4P ports, the number/volume/cost of field effect tubes built in the 4PnT switch can be reduced, compared with the simplest state that each port in the second T port is only connected with a single P port, the synchronous work of the SRS function and the downlink 4X4MIMO function under the FDD mode is expanded in function, and therefore the applicability is improved. This section is explained in detail below.

For example, if each of the 4T ports is fully connected to 4P ports, the number of field effect transistors of the multi-way switch is 4+4 × 3+4 × 56 as shown in the exemplary structure diagram of the multi-way switch shown in fig. 2; if only 1 of the 4T ports is fully connected to 4P ports, and each of the remaining T ports is connected to 2P ports, the number of fets in the multi-way switch is 4+ (1 × 4+ (4-1) × 2) × 3+4 ═ 38, as shown in the exemplary structure diagram of the multi-way switch in fig. 3.

Therefore, the number of the T ports which are fully connected with 4P ports in the T ports can be limited, and the switch number of the radio frequency system of the electronic equipment can be effectively reduced. That is, the number of the fully connected T ports has a large influence on the performance of the radio frequency system.

In one possible example, each of the 4P-ports is connected to a corresponding antenna; the first T port supports a signal transceiving function, and the second T port supports only a signal receiving function.

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

As can be seen, in this example, since the multi-way selector switch is specifically composed of 1 first T port and 3 second T ports, the number of switches of the multi-way selector switch is reduced relative to the form in which all the T ports are fully connected to the P port, the number of switches of the radio frequency system of the electronic device can be reduced, and the path loss can be reduced, thereby improving the transmission power and the reception sensitivity, improving the data transmission rate in the 5G NR, improving the uplink and downlink coverage of the mobile phone, and reducing the power consumption and the cost.

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

The single-frequency single-emission mode refers to an operating mode in which the maximum capability of the electronic device can support a single frequency band, a U L single transmission path or a D L4 receiving path, and the dual-frequency single-emission mode refers to an operating mode in which the maximum capability of the electronic device can support a dual frequency band, a U L single transmission path or a D L4 receiving path.

In one possible example, the multiway switch includes 4 first switch tubes, 30 second switch tubes, and 4 third switch tubes, the first switch tube corresponds to the T port, the third switch tube corresponds to the P port, every 3 second switch tubes are connected in series to form a switch subunit between the T port and the P port, 2 second switch tubes at two ends of the switch subunit are respectively connected to 1T port and 1P port, the second switch tube in the middle of the switch subunit is grounded, and gate poles of each first switch tube, each second switch tube, and each third switch tube are connected to a switch control chip.

In the concrete implementation, when the switch subunit is disconnected, if not grounded, the parasitic parameter has a large influence on the performance of other switched-on ports in the multi-path selection switch, so the switch subunit is set to be 3 switch tubes, wherein 3 switch tubes can be connected in common source, when the switch subunit is disconnected, 2 switch tubes on two sides are all disconnected, and the middle switch tube is grounded.

In the multi-way switch described in the embodiment of the present application, the concepts such as connection and full connection between the T port and the P port all refer to a state where the T port in the multi-way switch is connected to the P port through the switch subunit. The first, second and third switch tubes may be MOS transistors, the electronic device may be connected to the gate of each MOS transistor in the first, second and third switch tubes through a port of a switch control chip, the switch control chip may employ an MIPI interface, and the electronic device may control a signal of a driving port of the switch control chip to control a connection state between any T port and any P port.

Therefore, in this example, the switch subunit of the multi-way selector switch includes three second switch tubes, and the middle second switch tube is grounded, so that the influence of the parasitic parameters of the current switch tube on the performance of other conducting ports can be avoided in the open circuit state, and the switch control stability is improved.

In one possible example, the one shot mode is a single frequency one shot mode; the radio frequency circuit of the electronic equipment logically comprises a 1-path transmitting signal processing circuit and a 4-path receiving signal processing circuit; the 1-path transmitting signal processing circuit and the 1-path receiving signal processing circuit are connected in parallel through a duplexer to form a transmitting and receiving signal processing circuit, and the duplexer is used for combining transmitting signals and receiving signals of the same frequency band so as to realize that the electronic equipment transmits and receives signals on different frequency points under the FDD mode and works simultaneously;

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

the signal receiving and transmitting port of the at least one independent circuit module is used for being connected with the first T port, and the signal receiving port of the at least one independent circuit module is used for being connected with the second T port.

The signal receiving and transmitting port is a port of the receiving and transmitting signal processing circuit close to the multi-way selection switch, and the signal receiving port is a port of the receiving signal processing circuit close to the multi-way selection switch.

In this example, the radio frequency processing circuit may be configured to connect the transmit signal processing circuit and the 1-path receive signal processing circuit in parallel through the duplexer to form a receive signal processing circuit, so as to combine transmit signals and receive signals in the same frequency band, implement simultaneous operation of transmitting and receiving at different frequency points in the FDD system, and expand functionality of the electronic device.

In one possible example, as shown in fig. 4, the transceiving signal processing circuit includes a power amplifier PA, a low noise amplifier L NA, a duplexer, and a power coupler, the radio frequency transceiver connects the input port of the PA and the output port of the L NA, the output port of the PA and the input port of the L NA connect the duplexer, the duplexer connects the coupler, and the coupler connects the first T port;

the receiving signal processing circuit comprises a low noise amplifier L NA and a filter, the radio frequency transceiver is connected with the output port of the L NA, the input port of the L NA is connected with the filter, and the filter is connected with the second T port.

Therefore, in this example, the transmit-receive signal processing circuit and the receive signal processing circuit both support their corresponding functions in a simplified manner, which is beneficial to modularization and cost reduction, and improves the configuration efficiency of the radio frequency system in the electronic device.

In a possible example, as shown in fig. 5, in the single-frequency single-shot mode, the number of switching tubes of the multiway switch is 4+ (1 × 4+ (4-1) × 2) × 3+4 ═ 38, Nx represents a frequency band supported by the electronic device, such as n77(3.3 to 4.2GHz), n78(3.3 to 3.8GHz), n79(4.4GHz to 4.99GHz), and the like in the 5G NR system, TRX represents a port supporting a signal transmitting function, TX represents a port supporting a signal transmitting function, and RX represents a port supporting a signal receiving function, the structure shown in the figure is merely an example, and the structure of the multiway switch may also be other forms, which is not limited herein.

In one possible example, the at least one independent circuit module includes one independent circuit module, and the 1-path transmit-receive signal processing circuit and the 3-path receive signal processing circuit are disposed in the same independent circuit module. As shown in particular in fig. 6.

Therefore, in this example, the radio frequency circuit only includes 1 independent circuit module, and the integrated level is high, and occupation space is little, reduce cost.

In one possible example, the at least one independent circuit module includes two independent circuit modules, the 1-way transceiving signal processing circuit is disposed in one of the two independent circuit modules, and the 3-way receiving signal processing circuit is disposed in the other of the two independent circuit modules. As shown in particular in fig. 7.

As can be seen, in this example, the rf circuit includes 2 independent circuit modules, and the number of independent circuit modules is small, the integration level is high, the occupied space is small, and the cost is reduced.

In one possible example, the at least one independent circuit module includes four independent circuit modules, the 1-way transceiving signal processing circuit is disposed in one of the four independent circuit modules, and the 3-way transceiving signal processing circuit is disposed in another three independent circuit modules of the four independent circuit modules, respectively. As shown in particular in fig. 8.

It can be seen that, in this example, the rf circuit includes 4 independent circuit modules, and each independent circuit template is provided with only one processing circuit, so as to avoid the problem of mutual interference between the processing circuits.

In one possible example, the single shot mode is a dual frequency single shot mode, and the radio frequency circuit of the electronic device logically includes 2-way transmit signal processing circuits and 8-way receive signal processing circuits; the 1-path transmitting signal processing circuit and the 1-path 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, the 2-path transmitting and receiving signal processing circuits of different frequency bands are connected in parallel through a change-over switch to form a transmitting and receiving signal integrated processing circuit, the 2-path receiving signal processing circuits of different frequency bands are connected in parallel through the change-over switch to form a receiving signal integrated processing circuit, and the duplexer is used for combining transmitting signals and receiving signals of the same frequency band so as to realize that the electronic equipment can simultaneously work on different frequency points in the FDD mode in transmitting and receiving;

In one possible example, as shown in fig. 9, the transceiver integrated processing circuit includes a first power amplifier PA, a first low noise amplifier L NA, a first duplexer, a second power amplifier PA, a second low noise amplifier L NA, a second duplexer, a power coupler, and a switch (e.g., a single pole double throw SPDT switch), the radio frequency transceiver is connected to an input port of the first PA, an input port of the second PA, an output port of the first L NA, and an output port of the second L NA, the output port of the first PA and the input port of the first L NA are connected to the first duplexer, the output port of the second PA and the input port of the second L NA are connected to the second duplexer, the first duplexer and the second duplexer are connected to the coupler, the coupler is connected to the switch, and the switch is connected to the first T port;

the receiving signal integrated processing circuit comprises a first L NA, a first filter, a second L NA, a second filter and a change-over switch, the radio frequency transceiver is connected with the output port of the first L NA and the output port of the second L NA, the input port of the first L NA is connected with the first filter, the input port of the second L NA is connected with the second filter, the first filter and the second filter are connected with the change-over switch, and the change-over switch is connected with the second T port.

In FDD mode and single-shot mode, the PAs in the multiple transmit signal processing circuits do not work simultaneously, so that multiple PAs in the multiple transmit signal processing circuits can be arranged in the same independent circuit module.

In this example, the transceiving signal integrated processing circuit and the receiving signal integrated processing circuit both support their corresponding functions in a simplified manner, which is beneficial to modularization and cost reduction, and improves the configuration efficiency of the radio frequency system in the electronic device.

In one possible example, as shown in fig. 10, in the dual-frequency single-shot mode, the number of switching tubes of the multiway switch is 4+ (1 × 4+ (4-1) × 2) × 3+4 ═ 38, Nx represents a first frequency band supported by the electronic device, Ny represents a second frequency band supported by the electronic device, such as n77 (3.3-4.2 GHz), n78 (3.3-3.8 GHz), n79(4.4 GHz-4.99 GHz), and the like in the 5G NR system, TRX represents a port supporting a signal transceiving function, TX represents a port supporting a signal transmitting function, and RX represents a port supporting a signal receiving function.

In one possible example, the at least one independent circuit module includes one independent circuit module, and the 1-path transceiving signal integrated processing circuit and the 3-path receiving signal integrated processing circuit are disposed in the same independent circuit module. As shown in particular in fig. 11.

In one possible example, the at least one independent circuit module includes two independent circuit modules, the 1-way transceiving signal integrated processing circuit is disposed in one of the two independent circuit modules, and the 3-way receiving signal integrated processing circuit is disposed in the other of the two independent circuit modules. As shown in particular in fig. 12.

Therefore, in the example, the radio frequency circuit only comprises 2 independent circuit modules, so that the integration level is high, the occupied space is small, and the cost is reduced.

In one possible example, the at least one independent circuit module includes four independent circuit modules, the 1-path transceiving signal integrated processing circuit is disposed in one independent circuit module of the four independent circuit modules, and the 3-path transceiving signal integrated processing circuits are respectively disposed in the other three independent circuit modules of the four independent circuit modules. As shown in particular in fig. 13.

In one possible example, the 4 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 a 5G NR frequency band.

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

In one possible example, the 4-branch antenna includes a first antenna, a second antenna, a third antenna, and a fourth antenna, the first antenna and the fourth antenna are antennas supporting L TE band and 5G NR band, and the second antenna and the third antenna are antennas supporting only 5G NR band.

The first and fourth antennas are used to support D L4 x4MIMO in the individual bands of L TE terminals, 2 receiving antennas thereof are shared by the antennas of 5G NR, and the L TE bands may include 1880-1920MHz and 2496-2690MHz, for example.

In one possible example, as shown in fig. 14, the antenna system further includes a first combiner and a second combiner, wherein a first port of the first combiner is configured to connect to the first antenna, a second port of the first combiner is configured to connect to a first receiving path in L TE4x 4MIMO of the electronic device, a third port of the first combiner is configured to connect to a corresponding P port in the multiplexer, a first port of the second combiner is configured to connect to the fourth antenna, a second port of the second combiner is configured to connect to a second receiving path in L TE4x 4MIMO of the electronic device, and a third port of the second combiner is configured to connect to a corresponding P port in the multiplexer.

The L TE4 by 4MIMO is a downlink L TE receiving circuit, which can be defined as a third receiving path, because L TEs currently have 2 receiving paths, when L TE4x 4MIMO is supported, a third and a fourth receiving path are added.

The electronic device will reserve 1 antenna with better performance to the main set receiving PRX in the circuit for standby use according to the actual 4 antenna condition, and the first T port in the switch has the receiving and transmitting function, i.e. it can perform TX and PRX functions, and can switch the antenna arbitrarily, so it is not necessary to limit the connection port of the shared antenna.

In one possible example, as shown in fig. 15, the antenna system further includes a first SPDT switch and a second SPDT switch, wherein a first port of the first SPDT switch is configured to connect to the first antenna, a second port of the first SPDT switch is configured to connect to a first receiving path in L TE4x 4MIMO of the electronic device, a third port of the first SPDT switch is configured to connect to a corresponding P port in the multiplexer switch, a first port of the second SPDT switch is configured to connect to the fourth antenna, a second port of the second SPDT switch is configured to connect to a second receiving path in L TE4x 4MIMO of the electronic device, and a third port of the second SPDT switch is configured to connect to a corresponding P port in the multiplexer switch.

Referring to fig. 16, fig. 16 is a schematic flow chart of a function control method provided in an embodiment of the present application, and is applied to an electronic device, where the electronic device includes an antenna system and a radio frequency circuit, the antenna system includes 4 antennas, the multi-way selection switch includes 4T ports and 4P ports, the 4T ports include 1 first T port and 3 second T ports, the electronic device supports a single-shot mode, the first T ports are all connected to the 4P ports, each second T port is connected to 2P ports of the 4P ports, the P ports connected to a plurality of second T ports supporting signal receiving functions in the same frequency band cover the 4P ports, and the P ports connected to each T port of the 4T ports in a signal receiving state are different from each other; the method comprises the following steps:

step 1601: the electronic equipment determines to execute a preset function, wherein the preset function comprises a first function and a second function, the first function is a function of supporting alternate transmission of a Sounding Reference Signal (SRS) between transmitting antennas and transmitting a 4-port SRS, and the second function is a function of supporting the 4-port antennas to simultaneously receive data.

Step 1602: in the process of enabling the first function, the electronic device adjusts, according to the P port currently occupied by the first function, matching states between 3T ports of 4T ports currently occupied by the second function and the 4P ports, where the 3T ports are 3T ports of the 4T ports except for a single first T port currently occupied by the first function.

The electronic equipment executes the first and second functions and can meet the function requirements in a 5G NR FDD system.

Therefore, in the embodiment of the application, the electronic device can realize the preset function in the 5G NR FDD system through the radio frequency system constructed based on the multi-way selection switch, and the multi-way selection switch is simplified in structure and high in control efficiency, so that the real-time performance and the efficiency of the electronic device for completing the preset function are improved.

Specifically, the implementation method of step 1602 may specifically be:

if the single frequency band is an Nx frequency band, the electronic device determines a P port occupied by the T port 1 where the first function is located in the current detection period, determines a T port currently occupied by the Nx frequency band where the second function is located in the P port, and if the T port is the second T port, adjusts the P port currently occupied by the T port to another P port.

The one T port may be specifically one of T2, T3, and T4.

Specifically, the implementation method of step 1602 may specifically be:

if the single frequency band is an Ny frequency band, the electronic device determines a P port occupied by the T port 2 where the first function is located in the current detection period, determines a T port currently occupied by the Ny frequency band where the second function is located in the P port, and if the T port is the second T port, adjusts the P port currently occupied by the T port to another P port.

The one T port may be specifically one of T2, T3, and T4.

The following describes in detail the switching process between the T port and the P port in the embodiment of the present application, taking the multiplexer shown in fig. 5 as an example. Since the 5G NR protocol currently defines that 4P ports can only operate in the same frequency band in the same time period, it is assumed here that an Nx frequency band is detected, and it is assumed that 4T ports are connected to 4P ports in parallel in an initial state of the multi-way switch, that is, T1 is connected to P1, T2 is connected to P2, T3 is connected to P3, T4 is connected to P4, and 4P ports are respectively connected to 4 antennas, when the electronic device determines that a preset function is enabled, during the process of enabling the SRS, the electronic device can transmit and receive signals through a T1 and P1 path (which is turned on in advance to be used as a receiving path) in a first probing period for signal receiving and channel quality probing of the first antenna, and the first probing period does not switch because the P ports corresponding to T2, T3, and T4 are not occupied.

Secondly, the electronic device may control the T1 and the P2 to conduct the transmitting signal for channel detection of the second antenna for signal reception in the second detection period, where the P2 corresponding to the original T2 is occupied, and in order to maintain the signal receiving function of T2, the T2 needs to be switched to the P1.

Third, the electronic device may control the T1 and the P3 to conduct transceiving signals for signal reception and third antenna channel sounding in a third sounding period, where the P3 corresponding to the original T3 is occupied, and in order to maintain the signal receiving function of T3, the T3 needs to switch to the P2.

Finally, the electronic device may control the T1 and the P4 to conduct transceiving signals for signal reception and fourth antenna channel sounding in a fourth sounding period, where the P4 corresponding to the original T4 is occupied, and in order to maintain the signal receiving function of T4, the T4 needs to switch to the P3.

To this end, the electronic device completes 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.

Referring to fig. 17, fig. 17 is a schematic structural diagram of a radio frequency system according to an embodiment of the present application, where the radio frequency system includes an antenna system, a radio frequency circuit, and a multi-way selector switch according to any of the embodiments;

Referring to fig. 18, fig. 18 is a schematic structural diagram of a wireless communication device according to an embodiment of the present application, where the wireless communication device includes an antenna system, a radio frequency circuit, and a multi-way selector switch according to any of the embodiments;

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 a frequency division multiplexing FDD mode, the preset function comprises a first function and a second function, the first function is a function of supporting alternate sending of SRS between transmitting antennas and sending of 4-port SRS, and the second function is a function of supporting the 4 antennas to receive data simultaneously;

the wireless communication device includes at least any one of: electronic equipment, base station.

In addition, as shown in fig. 19, the 4 antennas in the antenna system described in the embodiment of the present application may also be multiplexed by the wireless charging receiver of the electronic device, specifically, the wireless charging receiver comprises a receiving antenna and a receiving control circuit, wherein the receiving antenna is matched with a transmitting antenna of a wireless charging transmitter (under the condition of same or similar frequency, the receiving antenna resonates, energy is transmitted in a wireless transmission mode in a radiation resonant magnetic coupling mode), the receiving control circuit converts the energy into direct current DC through a loop array antenna and outputs the direct current DC to a battery for charging, the receiving control circuit can dynamically adjust the frequency of the loop array antenna, and matching the frequency with the transmitting antenna of the wireless charging transmitter to realize the pairing charging, or, the wireless charging transmitter is interacted with the frequency variation range in real time to realize an exclusive encryption wireless charging mode.

The receiving antenna may be an antenna composed of at least 1 of 4 antennas (in many cases, the antennas are gated by a switch).

For example, as shown in fig. 20, the receiving antenna is a loop array antenna composed of the above-mentioned 4 antennas, the 4 antennas specifically include an antenna 1, an antenna 2, an antenna 3, and an antenna 4, wherein the antenna 1 and the antenna 4 support L TE and 5G NR frequency bands, the antenna 2 and the antenna 3 support only 5G NR frequency band, a port of the antenna 1 and a port of the antenna 4 serve as ports of the loop array antenna, wherein adjacent antennas are connected by a gating circuit 170 having an isolation function, the gating circuit 170 includes a spacer 171 and a switch 172, the spacer 171 is a conductor, the switch 172 is further connected to a controller, the electronic device can communicate with the switch 172 of each gating circuit 170 in a wireless charging mode to form a loop array antenna to receive energy, the gating circuit 170 reduces mutual coupling between multiple antennas in a normal communication mode on one hand, improves isolation between the multiple antennas, optimizes antenna performance, and on the other hand, the multiple antennas can be connected in series by the switch 171 to form a loop array antenna to facilitate better matching of energy, and further, the loop array antenna and the transmission loss of the antenna 1 and the antenna can be stronger than that of the loop array antenna and the antenna 2.

The foregoing is an implementation of the embodiments of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the embodiments of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.

Claims

1. A multi-way selector switch is applicable to an electronic device, the electronic device includes an antenna system and a radio frequency circuit, the antenna system includes 4 antennas, the multi-way selector switch includes 4T ports and 4P ports, the 4T ports include 1 first T port and 3 second T ports, the electronic device supports a single-shot mode, the first T ports are all connected with the 4P ports, each second T port is connected with 2P ports of the 4P ports, the P ports connected with a plurality of second T ports supporting signal receiving functions of the same frequency band cover the 4P ports, and the P ports connected with each T port of the 4T ports in a signal receiving state are different from each other;

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 a frequency division multiplexing FDD mode, each P port of the 4P ports is used for being connected with a corresponding antenna of the 4 antennas one by one, the 4T ports are used for being connected with the radio frequency circuit, and the 4 antennas comprise a transmitting antenna and a receiving antenna; the preset function comprises a first function and a second function, wherein the first function is a function of supporting alternate transmission of a Sounding Reference Signal (SRS) between transmitting antennas and transmitting a 4-port SRS, and the second function is a function of supporting the 4 antennas to simultaneously receive data; in the process of enabling the first function, the electronic device adjusts, according to the P port currently occupied by the first function, matching states between 3T ports of 4T ports currently occupied by the second function and the 4P ports, where the 3T ports are 3T ports of the 4T ports except for a single first T port currently occupied by the first function.

2. The multiplexing switch of claim 1, wherein the first T-port supports a signal transceiving function and the second T-port supports only a signal receiving function.

3. The multiplexing switch of claim 1 wherein the single shot mode comprises a single frequency single shot mode and a dual frequency single shot mode.

4. The multi-way selector switch according to any one of claims 1 to 3, wherein the multi-way selector switch comprises 4 first switching tubes, 30 second switching tubes and 4 third switching tubes, the first switching tube corresponds to the T port, the third switching tube corresponds to the P port, each 3 second switching tubes are connected in series to form a switching sub-unit between the T port and the P port, 2 second switching tubes at two ends of the switching sub-unit are respectively connected with 1T port and 1P port, the second switching tube in the middle of the switching sub-unit is grounded, and gates of each first switching tube, each second switching tube and each third switching tube are connected with a switch control chip.

5. A multiplexing switch according to any of claims 1-3 wherein the single shot mode is a single frequency single shot mode; the radio frequency circuit of the electronic equipment logically comprises a 1-path transmitting signal processing circuit and a 4-path receiving signal processing circuit; the 1-path transmitting signal processing circuit and the 1-path receiving signal processing circuit are connected in parallel through a duplexer to form a transmitting and receiving signal processing circuit, and the duplexer is used for combining transmitting signals and receiving signals of the same frequency band so as to realize that the electronic equipment transmits and receives signals on different frequency points under the FDD mode and works simultaneously;

6. The multiplexing switch of claim 5, wherein the at least one independent circuit module comprises an independent circuit module, and the 1-path transmit/receive signal processing circuit and the 3-path receive signal processing circuit are disposed in the same independent circuit module.

7. The multiplexing switch of claim 5, wherein the at least one independent circuit module comprises two independent circuit modules, wherein the 1-way transmission/reception signal processing circuit is disposed in one of the two independent circuit modules, and wherein the 3-way reception signal processing circuit is disposed in the other of the two independent circuit modules.

8. The multiplexing switch of claim 5, wherein the at least one independent circuit module comprises four independent circuit modules, wherein the 1-way transceiving signal processing circuit is disposed in one independent circuit module of the four independent circuit modules, and the 3-way transceiving signal processing circuit is disposed in another three independent circuit modules of the four independent circuit modules, respectively.

9. The multiplexing switch of any of claims 1-3, wherein the single-shot mode is a dual-frequency single-shot mode, and the radio frequency circuit of the electronic device logically comprises 2 transmit signal processing circuits and 8 receive signal processing circuits; the 1-path transmitting signal processing circuit and the 1-path 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, the 2-path transmitting and receiving signal processing circuits of different frequency bands are connected in parallel through a change-over switch to form a transmitting and receiving signal integrated processing circuit, the 2-path receiving signal processing circuits of different frequency bands are connected in parallel through the change-over switch to form a receiving signal integrated processing circuit, and the duplexer is used for combining transmitting signals and receiving signals of the same frequency band so as to realize that the electronic equipment can simultaneously work on different frequency points in the FDD mode in transmitting and receiving;

10. The multiplexing switch of claim 9, wherein the at least one independent circuit module comprises an independent circuit module, and the 1-channel transceiving signal integrated processing circuit and the 3-channel receiving signal integrated processing circuit are disposed in the same independent circuit module.

11. The multiplexing switch of claim 9, wherein the at least one independent circuit module comprises two independent circuit modules, wherein the 1-way transceiving signal integrated processing circuit is disposed in one of the two independent circuit modules, and the 3-way transceiving signal integrated processing circuit is disposed in the other of the two independent circuit modules.

12. The multiplexing switch of claim 9, wherein the at least one independent circuit module comprises four independent circuit modules, wherein the 1-channel transceiving integrated processing circuit is disposed in one independent circuit module of the four independent circuit modules, and the 3-channel transceiving integrated processing circuit is disposed in another three independent circuit modules of the four independent circuit modules, respectively.

13. A multi-way selection switch according to any of claims 1-3, wherein said 4 antennas comprise a first antenna, a second antenna, a third antenna and a fourth antenna, said first antenna and said fourth antenna are antennas supporting L TE frequency band and 5G NR frequency band of the fifth generation new air interface, and said second antenna and said third antenna are antennas supporting only 5G NR frequency band.

14. The multi-way selector switch of claim 13, wherein the antenna system further comprises a first combiner and a second combiner, wherein the first port of the first combiner is configured to connect to the first antenna, the second port of the first combiner is configured to connect to a first receiving path in L TE4x 4MIMO of the electronic device, the third port of the first combiner is configured to connect to a corresponding P port in the multi-way selector switch, the first port of the second combiner is configured to connect to the fourth antenna, the second port of the second combiner is configured to connect to a second receiving path in L TE4x 4MIMO of the electronic device, and the third port of the second combiner is configured to connect to a corresponding P port in the multi-way selector switch.

15. The multiplexing switch of claim 13, wherein the antenna system further comprises a first SPDT switch and a second SPDT switch, wherein a first port of the first SPDT switch is configured to connect to the first antenna, a second port of the first SPDT switch is configured to connect to a first receive path in L TE4x 4MIMO of the electronic device, a third port of the first SPDT switch is configured to connect to a corresponding P port in the multiplexing switch, a first port of the second SPDT switch is configured to connect to the fourth antenna, a second port of the second SPDT switch is configured to connect to a second receive path in L TE4x 4MIMO of the electronic device, and a third port of the second SPDT switch is configured to connect to a corresponding P port in the multiplexing switch.

16. A function control method is applied to an electronic device, the electronic device includes an antenna system, a radio frequency circuit and a multi-way selection switch, the antenna system includes 4 antennas, the multi-way selection switch includes 4T ports and 4P ports, the 4T ports include 1 first T port and 3 second T ports, the electronic device supports a single-shot mode, the first T ports are all connected with the 4P ports, each second T port is connected with 2P ports of the 4P ports, the P ports connected with a plurality of second T ports supporting signal receiving functions of the same frequency band cover the 4P ports, and the P ports connected with each T port of the 4T ports in a signal receiving state are different from each other; each P port in the 4P ports is used for being connected with a corresponding antenna in the 4 antennas one by one, the 4T ports are used for being connected with a radio frequency circuit, and the 4 antennas comprise transmitting antennas and receiving antennas; 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 a frequency division multiplexing FDD mode; the method comprises the following steps:

the electronic equipment determines to execute a preset function, wherein the preset function comprises a first function and a second function, the first function is a function of supporting alternate transmission of a Sounding Reference Signal (SRS) between transmitting antennas and transmitting a 4-port SRS, and the second function is a function of supporting the 4 antennas to simultaneously receive data;

17. The method of claim 16, wherein the electronic device adjusts the matching status between 3T ports of the 4T ports currently occupied by the second function and the 4P ports according to the P port currently occupied by the first function, and comprises:

18. The method of claim 16, wherein the electronic device adjusts the matching status between 3T ports of the 4T ports currently occupied by the second function and the 4P ports according to the P port currently occupied by the first function, and comprises:

19. A radio frequency system for use in an electronic device, comprising a multiswitch as claimed in any one of claims 1-15.

20. An electronic device comprising an antenna system, radio frequency circuitry, and a multiplexing switch according to any of claims 1-15.